Abstract:
A display device comprises a display panel, a light source, an optical member, and a frame. The optical member reflects light from the light source towards the display panel. The frame has a protruding portion that supports the optical member and is disposed near a periphery of the display panel.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This is a continuation application of U.S. patent application Ser. No. 13/646,445, which claims priority to Japanese Patent Application Nos. 2011-233763 filed on Oct. 25, 2011 and 2011-234180 filed on Oct. 25, 2011. The entire disclosures of U.S. patent application Ser. No. 13/646,445 and Japanese Patent Application Nos. 2011-233763 and 2011-234180 are hereby incorporated herein by reference. 
     
    
     BACKGROUND 
       [0002]    Field of the Invention 
         [0003]    This invention generally relates to a display device. More specifically, this invention relates to a display device with a reflection sheet. Furthermore, this invention relates to a television apparatus. 
         [0004]    Background Information 
         [0005]    Conventional display devices and television apparatuses provided with a reflection sheet are known (see Japanese Laid-Open Patent Application Publication No. 2003-167235 (Patent Citation 1), for example). 
         [0006]    This Patent Citation 1 discloses a liquid crystal display device provided with a front chassis and a rear chassis. In this liquid crystal display device, a liquid crystal display panel, an optical sheet, a light guide plate and a reflection sheet are provided between the front and rear chassis in this order from the front side. The front chassis has a frame-shaped portion that holds the front surface of the liquid crystal display panel and an L-shaped hook that holds the back surface of the reflection sheet. The L-shaped hook extends from the back surface of the frame-shaped portion of the front chassis backward (in the direction of the rear chassis). The L-shaped hook is configured to press the vicinity of the outer peripheral portion of the back surface of the reflection sheet. 
         [0007]    Another conventional display devices provided with a reflection sheet are also known (see Japanese Laid-Open Patent Application Publication No. 2003-346535 (Patent Citation 2), for example). 
         [0008]    This Patent Citation 2 discloses a display device provided with a light emitter, a light guide plate, a reflection sheet, and a rear chassis. The light emitter has a fluorescent discharge tube and the like. The light guide plate emits light, that enters from the light emitter to a side surface thereof, from the upper surface thereof. The reflection sheet covers back surfaces of the light emitter and the light guide plate. The rear chassis houses the light emitter, the light guide plate, and the reflection sheet. The rear chassis of the display device is made of a metal plate. A reflection sheet abutting portion is formed in the rear chassis by drawing processing. The reflection sheet abutting portion and the reflection sheet abuts each other. 
       SUMMARY 
       [0009]    The reflection sheet of the display device need to be properly supported to the display device for properly reflecting the light. 
         [0010]    One object of the present disclosure is to provide a display device in which a reflection sheet is properly supported. 
         [0011]    In view of the state of the know technology, a display device comprises a display panel, a light source, an optical member, and a frame. The optical member reflects light from the light source towards the display panel. The frame has a protruding portion that supports the optical member and is disposed near a periphery of the display panel. 
         [0012]    Other objects, features, aspects and advantages of the present disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses selected embodiments of the display device. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0013]    Referring now to the attached drawings which form a part of this original disclosure: 
           [0014]      FIG. 1  is a front perspective view of a liquid crystal television apparatus in accordance with a first embodiment; 
           [0015]      FIG. 2  is a rear perspective view of the liquid crystal television apparatus illustrated in  FIG. 1 ; 
           [0016]      FIG. 3  is an exploded perspective view of the liquid crystal television apparatus illustrated in  FIG. 1 ; 
           [0017]      FIG. 4  is a rear elevational view of the liquid crystal television apparatus illustrated in  FIG. 1 ; 
           [0018]      FIG. 5  is a partial cross sectional perspective view of the liquid crystal television apparatus taken along V-V line in  FIG. 4 ; 
           [0019]      FIG. 6  is a cross sectional view of the liquid crystal television apparatus taken along VI-VI line in  FIG. 4 ; 
           [0020]      FIG. 7  is a partial cross sectional view of the liquid crystal television apparatus taken along VII-VII line in  FIG. 4 ; 
           [0021]      FIG. 8  is a rear elevational view of a display panel supporting member of the liquid crystal television apparatus illustrated in  FIG. 1 ; 
           [0022]      FIG. 9  is a rear elevational view of a heat sink and a reflection sheet of the liquid crystal television apparatus illustrated in  FIG. 1 ; 
           [0023]      FIG. 10  is a block diagram of the liquid crystal television apparatus illustrated in  FIG. 1 ; 
           [0024]      FIG. 11  is a front perspective view of a liquid crystal television apparatus in accordance with a second embodiment; 
           [0025]      FIG. 12  is a rear perspective view of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0026]      FIG. 13  is a front elevational view of a front chassis and a liquid crystal display panel of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0027]      FIG. 14  is a rear elevational view of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0028]      FIG. 15  is an exploded perspective view of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0029]      FIG. 16  is a block diagram of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0030]      FIG. 17  is a rear elevational view of a heat sink, a reflection sheet, and a reflection sheet holder of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0031]      FIG. 18  is a front elevational view of the heat sink and the reflection sheet holder of the liquid crystal television apparatus illustrated in  FIG. 11 ; 
           [0032]      FIG. 19  is a cross sectional view of the liquid crystal television apparatus taken along XIX-XIX line in  FIG. 13 ; 
           [0033]      FIG. 20  is an enlarged partial cross sectional view of an encircled portion XX of the liquid crystal television apparatus illustrated in  FIG. 19 ; 
           [0034]      FIG. 21  is an enlarged partial cross sectional view of an encircled portion XXI of the liquid crystal television apparatus illustrated in  FIG. 19 ; 
           [0035]      FIG. 22  is an enlarged partial cross sectional view of an encircled portion XXII of the liquid crystal television apparatus illustrated in  FIG. 19 ; 
           [0036]      FIG. 23  is a cross sectional view of the liquid crystal television apparatus taken along XXIII-XXIII line in  FIG. 13 ; 
           [0037]      FIG. 24  is an enlarged partial cross sectional view of an encircled portion XXIV of the liquid crystal television apparatus illustrated in  FIG. 23 ; 
           [0038]      FIG. 25  is an enlarged partial cross sectional view of an encircled portion XXV of the liquid crystal television apparatus illustrated in  FIG. 23 ; and 
           [0039]      FIG. 26  is an enlarged partial cross sectional view of an encircled portion XXVI of the liquid crystal television apparatus illustrated in  FIG. 23 . 
       
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
       [0040]    Selected embodiments will now be explained with reference to the drawings. It will be apparent to those skilled in the art from this disclosure that the following descriptions of the embodiments are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents. 
         [0041]    Referring to  FIGS. 1 through 10 , a liquid crystal television apparatus  100  in accordance with a first embodiment will be described. The liquid crystal television apparatus  100  is an example of the “display device” and the “television apparatus.” 
         [0042]    With the conventional liquid crystal display device described in the Patent Citation 1, the vicinity of the outer peripheral portion of the reflection sheet is pressed by the L-shaped hook formed on the back surface of the frame-shaped portion of the front chassis. In other words, an inner area of the back surface of the reflection sheet is not pressed. Thus, it has been discovered that the inner area of the reflection sheet become spaced apart backward from the light guide plate. 
         [0043]    The liquid crystal television apparatus  100  is made to address the above-described circumstances. With the liquid crystal television apparatus  100 , an inner area of a reflection sheet can be prevented from being spaced apart backward, which will be discussed later in detail. 
         [0044]    As shown in  FIGS. 1 and 2 , the liquid crystal television apparatus  100  has a frame-shaped front chassis  1 , a liquid crystal display panel  2 , and a stand member  3 . The front chassis  1  has a rectangular shape. The liquid crystal display panel  2  is housed in the front chassis  1 , and has a display screen on an arrow Y 1  side. The stand member  3  supports the liquid crystal television apparatus  100  as a whole. The front chassis  1  and the stand member  3  are both made of resin. In the following explanations, the display screen side of the liquid crystal display panel  2  is a front side of the liquid crystal television apparatus  100  (e.g., a front surface side or the arrow Y 1  side), and the opposite side of the display screen side of the liquid crystal display panel  2  is a back side of the liquid crystal television apparatus  100  (e.g., a back surface side or an arrow Y 2  side). 
         [0045]    Furthermore, an arrow X indicates a widthwise or longitudinal direction (e.g., first direction) of the liquid crystal television apparatus  100 , an arrow Y indicates a front to back direction of the liquid crystal television apparatus  100 , and an arrow Z indicates a height or short-side direction of the liquid crystal television apparatus  100 . Moreover, arrows X 1  and X 2  indicate left and right sides of the liquid crystal television apparatus  100  along the widthwise direction X from the perspective of viewing the liquid crystal display panel  2  from the arrow Y 1  side (or front side), respectively, while arrows Z 1  and Z 2  indicate upper and lower sides of the liquid crystal television apparatus  100  along the height direction Z, respectively. 
         [0046]    The liquid crystal television apparatus  100  further includes a display panel supporting member  4  (e.g., rear frame). The display panel supporting member  4  is made of sheet metal, such as SECC (steel electrolytic cold commercial or electrolytic zinc-coated steel sheet). The display panel supporting member  4  is provided on the back surface side of the front chassis  1  (i.e., on the arrow Y 2  side). The display panel supporting member  4  has a rectangular shape viewed from the back, and is formed to be smaller than the front chassis  1 . 
         [0047]    As shown in  FIG. 3 , the liquid crystal television apparatus  100  further has a cover member  5 . The cover member  5  is made of resin. The cover member  5  is attached to a back surface (i.e., a rear surface on the arrow Y 2  side) of the metal display panel supporting member  4 . The cover member  5  has a rectangular shape viewed from the back, and is formed to be smaller than the front chassis  1  and the display panel supporting member  4 . Also, as shown in  FIG. 4 , the cover member  5  covers the back surface of the display panel supporting member  4  such that a vicinity of an outer peripheral portion of the back surface of the display panel supporting member  4  is exposed in an inverted U shape viewed from the back. The display panel supporting member  4  has an area  51  covered by the cover member  5  and an area  52  exposed from the cover member  5 . The rear chassis is constructed of the area  52  exposed from the cover member  5 , and the cover member  5 . In other words, the area  52  that is a part of the back surface of the display panel supporting member  4  forms the rear chassis of the liquid crystal television apparatus  100 . 
         [0048]    As shown in  FIG. 3 , the liquid crystal television apparatus  100  further has a pair of circuit boards  6  and  7 . The circuit board  6  has the function of supplying power to the apparatus as a whole, while the circuit board  7  has the function of signal processing. The circuit boards  6  and  7  are attached to the area  51  covered by the cover member  5  of the back surface of the display panel supporting member  4  in an arrangement spaced apart from each other at a predetermined distance in the widthwise direction X. Furthermore, as shown in  FIG. 3 , the liquid crystal television apparatus  100  further has a pair of speakers  8  and a speaker attachment member  9  to which the speakers  8  are attached. The speaker attachment member  9  is also attached to a lower portion (i.e., arrow Z 2  side) of the back surface of the display panel supporting member  4 . 
         [0049]    As shown in  FIG. 3 , the liquid crystal television apparatus  100  further has a heat sink  10 , a refection sheet  11 , a light guide plate  12 , a light diffusing sheet  13 , a lens sheet  14 , a frame-shaped resin frame  15 , a plurality of (four in this embodiment) bezels  16 , and a LED (Light Emitting Diode) light source  17   a  (e.g., light source). The heat sink  10 , the refection sheet  11 , the light guide plate  12 , the light diffusing sheet  13 , the lens sheet  14 , the frame-shaped resin frame  15 , the liquid crystal display panel  2 , the bezels  16  are arranged in front of the display panel supporting member  4  (i.e., on the arrow Y 1  side). The heat sink  10  is made of sheet metal, such as SECC. The reflection sheet  11  reflects light emitted from the LED light source  17   a  described below. The light guide plate  12  and the light diffusing sheet  13  diffuse light emitted from the LED light source  17   a.  The lens sheet  14  collects light. Furthermore, the liquid crystal television apparatus  100  has a liquid crystal panel driving board  2   a  that drives the liquid crystal display panel  2 . 
         [0050]    As shown in  FIG. 5  and  FIG. 6 , the LED light source  17   a  for a back light with a plurality of LEDs is provided on the side of the light guide plate  12  (i.e., in the arrow X 2  direction). The LED light source  17   a  emits light. The LED light source  17   a  is attached to a surface of an LED board  17   b  on the arrow X 1  side. A surface of the LED board  17   b  on the arrow X 2  side (i.e., the opposite surface of the surface to which the LED light source  17   a  is attached) is attached to a surface of the heat sink  10  on the arrow X 1  side through a heat release tape or sheet  18 . 
         [0051]    In the present embodiment, as shown in  FIG. 5  through  FIG. 9 , the display panel supporting member  4  has a first recessed portion  41  that is recessed toward the reflection sheet  11  (i.e., the arrow Y 1  direction) so as to press an inner area (i.e., a shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  except for the vicinity of an outer peripheral portion of the back surface of the reflection sheet  11 . The first recessed portion  41  has a substantially rectangular shape viewed from the back. Also, the first recessed portion  41  is covered by the cover member  5 . The front surface of the first recessed portion  41  (i.e., a shaded portion B in  FIG. 8 ) surface-contacts with the inner area (i.e., the shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11  at a contact area of the front surface of the first recessed portion  41 . Also, the inner area (i.e., the shaded portion A in  FIG. 9 ) of the reflection sheet  11  is pressed (or pressure is applied) against the light guide plate  12  provided in front of the reflection sheet  11  by the front surface of the first recessed portion  41  (i.e., the shaded portion B in  FIG. 8 ). 
         [0052]    As shown in  FIG. 8 , the display panel supporting member  4  has a second recessed portion  42  formed to surround the first recessed portion  41 . The second recessed portion  42  is configured such that the outer edge portion of the cover member  5  fits thereinto. A depth D 1  of the second recessed portion  42  of the display panel supporting member  4  is larger than a depth D 2  of the first recessed portion  41  of the display panel supporting member  4 . 
         [0053]    As shown in  FIG. 8 , a length L 1  in the longitudinal direction X of the first recessed portion  41  of the display panel supporting member  4  is smaller than a length L 2  in the longitudinal direction X of the second recessed portion  42  of the display panel supporting member  4 . The length L 1  in the longitudinal direction X of the first recessed portion  41  is equal to or greater than about three-fourths of the length L 2  in the longitudinal direction X of the second recessed portion  42 . 
         [0054]    A length L 3  in the short-side direction Z of the first recessed portion  41  of the display panel supporting member  4  is smaller than a length L 4  in the short-side direction Z of the second recessed portion  42  of the display panel supporting member  4 . The length L 3  in the short-side direction Z of the first recessed portion  41  is equal to or greater than about two-thirds of the length L 4  in the short-side direction Z of the second recessed portion  42 . 
         [0055]    The length L 1  in the longitudinal direction X of the first recessed portion  41  of the display panel supporting member  4  is smaller than a length L 5  in the longitudinal direction X of the entire display panel supporting member  4 . The length L 1  in the longitudinal direction X of the first recessed portion  41  is equal to or greater than a half of the length L 5  in the longitudinal direction X of the entire display panel supporting member  4 . 
         [0056]    The length L 3  in the short-side direction Z of the first recessed portion  41  of the display panel supporting member  4  is smaller than a length L 6  in the short-side direction Z of the entire display panel supporting member  4 . The length L 3  in the short-side direction Z of the first recessed portion  41  of the display panel supporting member  4  is equal to or greater than a half of the length L 6  in the short-side direction Z of the entire display panel supporting member  4 . 
         [0057]    As shown in  FIG. 9 , a length L 7  in the longitudinal direction X of the area (i.e., the shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  pressed by the first recessed portion  41  (see  FIG. 8 ) of the display panel supporting member  4  is smaller than the length L 5  in the longitudinal direction X of the entire display panel supporting member  4 . The length L 7  in the longitudinal direction X of the area of the back surface of the reflection sheet  11  pressed by the first recessed portion  41  is equal to or greater than a half of the length L 5  in the longitudinal direction X of the entire display panel supporting member  4 . 
         [0058]    A length L 8  in the short-side direction Z of the area (i.e., the shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  pressed by the first recessed portion  41  (see  FIG. 8 ) of the display panel supporting member  4  is smaller than the length L 6  in the short-side direction Z of the entire display panel supporting member  4  (see  FIG. 8 ). The length L 8  in the short-side direction Z of the area of the back surface of the reflection sheet  11  pressed by the first recessed portion  41  of the display panel supporting member  4  is equal to or greater than a half of the length L 6  in the short-side direction Z of the entire display panel supporting member  4 . 
         [0059]    The first recessed portion  41  and the second recessed portion  42  of the display panel supporting member  4  are formed by drawing processing. The cross-sectional shape of an area (i.e., a curved surface portion  41   a ) (see  FIG. 6  and  FIG. 7 ) corresponding to the outer edge portion of the contact area (i.e., the shaded portion B in  FIG. 8 ), that surface-contacts the back surface of the reflection sheet  11 , of the front surface of the first recessed portion  41  of the display panel supporting member  4  has a curved surface shape. The cross-sectional shape of an area (i.e., a curved surface portion  42   a ) (see  FIG. 6  and  FIG. 7 ) in the vicinity of an area of the second recessed portion  42  of the display panel supporting member  4  into which the cover member  5  fits has a curved surface shape. More specifically, the curvature radii of the curved surface portion  41   a  of the first recessed portion  41  and the curved surface portion  42   a  of the second recessed portion  42  are equal to or greater than about 3R and equal to or smaller than about 6R, where R is the thickness of the display panel supporting member  4 . 
         [0060]    As shown in  FIG. 6  and  FIG. 8 , the display panel supporting member  4  has a bulge portion  43  formed to bulge toward the back side (i.e., the arrow Y 2  side) along three sides of the outer peripheral portion of the display panel supporting member  4 . Specifically, the bulge portion  43  is formed in the vicinity of three sides of the second recessed portion  42  on the arrow X 2  side, the arrow X 1  side, and the arrow Z 1  side. The bulge portion  43  is provided in the area  52  of the display panel supporting member  4  exposed from the cover member  5 . The mechanical strength of the display panel supporting member  4  is increased by the bulge portion  43  formed along three sides of the outer peripheral portion of the display panel supporting member  4 , which results in maintaining the strength of the display panel supporting member  4  forming the rear chassis. 
         [0061]    The heat sink  10  is provided between a front surface (i.e., a surface on the arrow Y 1  side) of the bulge portion  43  formed on the arrow X 2  side of the display panel supporting member  4  and the back surface of the reflection sheet  11 . The front surface of the bulge portion  43  formed on the arrow X 2  side of the display panel supporting member  4  surface-contacts a back surface  10   c  (i.e., a surface on the arrow Y 2  side) of the heat sink  10 . The height position of a back surface (i.e., a surface on the arrow Y 2  side) of the bulge portion  43  formed on the arrow X 1  side of the display panel supporting member  4  is substantially equal to the height position of a portion of the back surface of the cover member  5  corresponding to the vicinity of the second recessed portion  42 . 
         [0062]    As shown in  FIG. 9 , the heat sink  10  is formed to extend along the short-side direction Z (a side in Z direction) of the display panel supporting member  4  viewed from the back. In the present embodiment, as shown in  FIG. 5  and  FIG. 6 , the area (i.e., the shaded portion C in  FIG. 5 ,  FIG. 8  and  FIG. 9 ) on the arrow X 2  side of the back surface of the reflection sheet  11  is pressed (pressure is applied) against the light guide plate  12  by a front surface  10   d  (a surface on the arrow Y 1  side) of the heat sink  10 . Specifically, in the present embodiment, the back surface of the reflection sheet  11  is pressed against the light guide plate  12  by the first recessed portion  41  of the display panel supporting member  4  and the front surface  10   d  of the heat sink  10 . 
         [0063]    As shown in  FIG. 3 , a plurality of board attachment portions  44  to which the circuit board  6  and the circuit board  7  are attached respectively are formed in the outer peripheral portion of the first recessed portion  41  of the display panel supporting member  4 . Each of the board attachment portions  44  is formed to be projected toward the cover member  5 . Also, a board attachment threaded hole  4   a  is formed in each of the board attachment portions  44 . 
         [0064]    A plurality of screw insertion holes  6   a  for inserting a screw  30  are formed in the outer edge portion of the circuit board  6 . The circuit board  6  is fixed to the display panel supporting member  4  by fastening each of the screws  30  into the board attachment threaded hole  4   a  of the board attachment portion  44  of the display panel supporting member  4  through the screw insertion hole  6   a  of the circuit board  6 . 
         [0065]    A plurality of screw insertion holes  7   a  for inserting the screw  30  are formed in the outer edge portion of the circuit board  7 . The circuit board  7  is fixed to the display panel supporting member  4  by fastening each of the screws  30  into the board attachment threaded hole  4   a  of the board attachment portion  44  of the display panel supporting member  4  through the screw insertion hole  7   a  of the circuit board  7 . 
         [0066]    A plurality of cover member attachment threaded holes  4   c  for attaching the cover member  5  are formed in the back surface (i.e., a bottom surface) of the display panel supporting member  4 . A plurality of screw insertion holes  5   a  are formed in the cover member  5 . The cover member  5  is fixed to the display panel supporting member  4  by fastening each of the screws  30  into the cover member attachment threaded hole  4   c  of the display panel supporting member  4  through the screw insertion hole  5   a  of the cover member  5 . Viewed from the back, the screw  30  fastened into the screw insertion hole  5   a  located at the upper left of the cover member  5  is fastened into the board attachment threaded hole  4   a  at the upper left of the display panel supporting member  4  through the screw insertion hole  6   a  at the upper left of the circuit board  6 . 
         [0067]    The cover member  5  is attached by the screws  30  to the cover member attachment threaded holes  4   c  formed in the lower portion (in the arrow Z 2  direction) among the cover member attachment threaded holes  4   c  formed in the back surface of the display panel supporting member  4  such that the speaker attachment member  9  is sandwiched therebetween. Also, the cover member  5  is attached to cover the circuit board  6 , the circuit board  7 , and the speaker attachment member  9  to which the two speakers  8  are attached, from the back. 
         [0068]    A plurality of screw insertion holes  4   b  are formed in the back surface (i.e., the bottom surface) of the display panel supporting member  4  along the outer edge portion thereof. The display panel supporting member  4  is fixed to the front chassis  1  by fastening the screws  30  into a plurality of rear chassis attachment threaded holes  1   a  of the front chassis  1  through the screw insertion holes  4   b  of the display panel supporting member  4 . 
         [0069]    As shown in  FIG. 3 , two rear chassis attachment threaded holes  10   a  for attaching the display panel supporting member  4  are formed in the back surface (i.e., the surface on the arrow Y 2  side) of the heat sink  10 . Two screw insertion holes  4   d  for attaching the screw  30  are formed in the area in the vicinity of the side of the display panel supporting member  4  on the arrow X 2  side. The display panel supporting member  4  and the heat sink  10  are fixed to each other by fastening the screws  30  into the rear chassis attachment threaded holes  10   a  of the heat sink  10  through the screw insertion holes  4   d  of the display panel supporting member  4 . 
         [0070]    Bezel attachment threaded holes  10   b  for attaching the bezel  16  are formed in the upper end portion and the lower end portion of the heat sink  10 . Screw insertion holes  16   a  for attaching the screw  30  are formed in the bezels  16 . The bezels  16  and the heat sink  10  are fixed to each other by fastening the screws  30  into the bezel attachment threaded holes  10   b  of the heat sink  10  through the screw insertion holes  16   a  of the bezels  16 . 
         [0071]    The circuit board  7  for signal processing attached to the display panel supporting member  4  has a receiver or tuner  19  capable of receiving a television broadcast. As shown in  FIG. 10 , the receiver  19  is connected to the liquid crystal display panel  2  and the speakers  8 , and configured to output to the liquid crystal display panel  2  a video signal from the television broadcast signal (video signal and audio signal) received by an antenna  60  and output an audio signal to the speakers  8 . 
         [0072]    In the present embodiment, as described above, the display panel supporting member  4  has the first recessed portion  41  (i.e., the shaded portion B in  FIG. 8 ) that is recessed toward the reflection sheet  11  so as to press the inner area (i.e., the shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11 . Accordingly, the inner area of the back surface of the reflection sheet  11  can be pressed by the first recessed portion  41  of the display panel supporting member  4 , and thus the inner area of the reflection sheet  11  can be prevented from being spaced apart backward, unlike in the case of pressing only the vicinity of the outer peripheral portion of the reflection sheet  11 , for example. Also, since the inner area of the back surface of the reflection sheet  11  can be pressed by the first recessed portion  41  of the display panel supporting member  4 , it is not necessary to provide a member exclusive for pressing the reflection sheet  11  separately. 
         [0073]    In the present embodiment, as described above, the front surface (i.e., the shaded portion B in  FIG. 8 ) of the first recessed portion  41  of the display panel supporting member  4  presses the inner area (i.e., the shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11  in a state of surface-contacting the inner area of the back surface of the reflection sheet  11  except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11 . Consequently, the area of pressing the reflection sheet  11  can be made larger compared to the case where the front surface of the first recessed portion  41  of the display panel supporting member  4  point-contacts or line-contacts the inner area of the back surface of the reflection sheet  11  except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11 , which makes it possible to securely prevent the inner area of the reflection sheet  11  from being spaced apart backward. 
         [0074]    In the present embodiment, as described above, the front surface of the first recessed portion  41  of the display panel supporting member  4  is configured such that the area corresponding to the outer edge portion of the area of the front surface of the first recessed portion  41  that surface-contacts the back surface of the reflection sheet  11  has a curved cross-sectional shape. It is thus possible to prevent the vicinity of the area corresponding to the outer edge portion of the area, that surface-contacts the front surface of the first recessed portion  41  of the display panel supporting member  4 , of the back surface of the reflection sheet  11  from being compressed unlike in the case where the front surface of the first recessed portion  41  of the display panel supporting member  4  is configured such that the area corresponding to the outer edge portion of the area of the front surface of the first recessed portion  41  that surface-contacts the back surface of the reflection sheet  11  has an L-shaped (e.g., right angle) cross-sectional shape, for example, instead of a curved cross-sectional shape. 
         [0075]    In the present embodiment, as described above, the first recessed portion  41  of the display panel supporting member  4  presses the inner area (i.e., the shaded portion A in  FIG. 9 ) of the back surface of the reflection sheet  11  except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11 , and in addition to that, the heat sink  10  presses the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11 . Consequently, both of the inner area (i.e., the shaded portion A in  FIG. 9 ) and the vicinity of the outer peripheral portion of the back surface of the reflection sheet  11  are pressed by the first recessed portion  41  and the heat sink  10 , so that the reflection sheet  11  can more securely be pressed. Also, since the vicinity of the outer peripheral portion of the reflection sheet  11  can be pressed by the heat sink  10  that releases heat generated from the LED light source  17   a,  it is not necessary to provide a member exclusive for pressing the vicinity of the outer peripheral portion of the reflection sheet  11  separately. 
         [0076]    In the present embodiment, as described above, the cover member  5  is provided to fit into the second recessed portion  42  of the display panel supporting member  4 , and is provided to cover the first recessed portion  41  of the display panel supporting member  4 . Consequently, when the circuit board  6  and the circuit board  7  are provided on the first recessed portion  41 , the circuit board  6  and the circuit board  7  can be concealed by the cover member  5 , and the circuit board  6  and the circuit board  7  provided on the first recessed portion  41  can be prevented from being observed by a user. 
         [0077]    In the present embodiment, as described above, the depth D 1  of the second recessed portion  42  of the display panel supporting member  4  is larger than the depth D 2  of the first recessed portion  41  of the display panel supporting member  4 . Consequently, the cover member  5  can easily be attached to the second recessed portion  42  compared to the case where the depth D 1  of the second recessed portion  42  of the display panel supporting member  4  is smaller than the depth D 2  of the first recessed portion  41  of the display panel supporting member  4  because an inner side surface of the second recessed portion  42  can serve as a guide when the cover member  5  is attached to the second recessed portion  42 . 
         [0078]    In the present embodiment, as described above, the display panel supporting member  4  is made of sheet metal, and the first recessed portion  41  and the second recessed portion  42  of the display panel supporting member  4  are formed by drawing processing. Consequently, the first recessed portion  41  and the second recessed portion  42  can easily be formed on the display panel supporting member  4  by drawing processing. 
         [0079]    In the present embodiment, as described above, the length L 7  in the longitudinal direction X of the area of the back surface of the reflection sheet  11  pressed by the first recessed portion  41  of the display panel supporting member  4  is equal to or greater than a half of the length L 5  in the longitudinal direction X of the entire display panel supporting member  4 . Consequently, a relatively broad area of the back surface of the reflection sheet  11  can be pressed compared to the case where the length L 7  in the longitudinal direction X of the area of the back surface of the reflection sheet  11  pressed by the first recessed portion  41  of the display panel supporting member  4  is less than a half of the length L 5  in the longitudinal direction X of the entire display panel supporting member  4 . It is thus possible to securely prevent the inner area of the reflection sheet  11  from being spaced apart backward. 
         [0080]    In the present embodiment, as described above, the front surface of the first recessed portion  41  of the display panel supporting member  4  is arranged to press the reflection sheet  11  against the light guide plate  12 . Consequently, the inner area (i.e., the shaded portion A in  FIG. 9 ) of the front surface of the reflection sheet  11  can be prevented from being spaced apart backward from the light guide plate  12  by the first recessed portion  41 . 
         [0081]    The embodiment described herein is in all respects merely examples, and shall not be construed as limiting the present invention. The scope of the present invention is defined by the claims and not by the above-described embodiment, and includes all equivalents to the claims and modifications within the intended scope thereof. 
         [0082]    For example, in the present application, a liquid crystal television apparatus is described as an example of the display device or television apparatus. However, the present invention is not limited to this. For example, the present application can also be applied to a display device such as a monitor of a personal computer other than a television apparatus, or to a television apparatus other than a liquid crystal television apparatus. 
         [0083]    In the above-described embodiment, the display panel supporting member forming the rear chassis has a single first recessed portion. However, the present application is not limited to this. For example, the display panel supporting member forming the rear chassis can have two or more first recessed portions as long as the first recessed portions have a shape that is recessed toward the reflection sheet so as to press an inner area of the back surface of the reflection sheet except for the vicinity of an outer peripheral portion of the back surface of the reflection sheet. 
         [0084]    In the above-described embodiment, the front surface of the first recessed portion of the display panel supporting member forming the rear chassis surface-contacts the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. However, the present application is not limited to this. For example, the front surface of the first recessed portion of the display panel supporting member forming the rear chassis can point-contact or line-contact the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. 
         [0085]    In the above-described embodiment, the first recessed portion is formed in an area of the display panel supporting member covered by the cover member. However, the present application is not limited to this. For example, the first recessed portion can be formed in an area exposed from the cover member of the rear chassis as well as in the area covered by the cover member of the rear chassis as long as the front surface of the first recessed portion of the rear chassis can press the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. 
         [0086]    In the above-described embodiment, the metal display panel supporting member and the metal heat sink are made of sheet metal (SECC). However, the present application is not limited to this. For example, a display panel supporting member or a heat sink can be made of a material such as aluminum other than sheet metal (SECC). Also, the display panel supporting member can be made of resin. 
         [0087]    In the above-described embodiment, the first recessed portion and the second recessed portion are formed in the display panel supporting member forming the rear chassis by drawing processing. However, the present application is not limited to this. For example, the first recessed portion and the second recessed portion can be formed in the display panel supporting member forming the rear chassis by a processing method other than drawing processing. 
         [0088]    The display device according to a first aspect of the present application includes a display panel, a light source, a reflection sheet, and a display panel supporting member. The reflection sheet reflects light emitted from the light source to the front side that is a display screen side of the reflection sheet. The display panel supporting member supports the display panel. The display panel supporting member is positioned on the back side that is an opposite side to the display screen side of the reflection sheet. A part of a back surface of the display panel supporting member on the opposite side to the display screen side forming a rear chassis. The display panel supporting member forming the rear chassis has a first recessed portion that is recessed toward the reflection sheet so as to press an inner area of the back surface of the reflection sheet except for the vicinity of an outer peripheral portion of the back surface of the reflection sheet. 
         [0089]    In the display device according to this first aspect, as described above, the display panel supporting member forming the rear chassis has the first recessed portion that is recessed toward the reflection sheet so as to press the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. Accordingly, the inner area of the back surface of the reflection sheet can be pressed by the first recessed portion of the rear chassis. Thus, the inner area of the reflection sheet can be prevented from being spaced apart backward, unlike in the case of pressing only the vicinity of the outer peripheral portion of the reflection sheet by an L-shaped hook provided in a front chassis, for example. Also, since the inner area of the back surface of the reflection sheet can be pressed by the first recessed portion of the display panel supporting member forming the rear chassis, it is not necessary to provide a member exclusive for pressing the reflection sheet separately. 
         [0090]    In the display device according to the above-described first aspect, a front surface of the first recessed portion of the display panel supporting member forming the rear chassis is provided to press the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet in a state of surface-contacting the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. With this configuration, the area of pressing the reflection sheet can be made larger compared to the case of point-contacting or line-contacting the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet, which makes it possible to securely prevent the inner area of the reflection sheet from being spaced apart backward. 
         [0091]    In this case, the front surface of the first recessed portion of the display panel supporting member forming the rear chassis is configured such that an area corresponding to an outer edge portion of an area of the front surface of the first recessed portion that surface-contacts the back surface of the reflection sheet has a curved cross-sectional shape. With this configuration, it is possible to prevent the vicinity of the area corresponding to the outer edge portion of the area, that surface-contacts the front surface of the first recessed portion of the display panel supporting member, of the back surface of the reflection sheet from being compressed unlike in the case where the front surface of the first recessed portion of the display panel supporting member is configured such that the area corresponding to the outer edge portion of the area of the front surface of the first recessed portion that surface-contacts the back surface of the reflection sheet has an L-shaped (e.g., right angle) cross-sectional shape, for example, instead of a curved cross-sectional shape. 
         [0092]    The display device according to the above-described first aspect further includes a heat sink provided in front of the display panel supporting member and outside the first recessed portion. The vicinity of the outer peripheral portion of the back surface of the reflection sheet is pressed by the heat sink in addition to pressing the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet by the first recessed portion of the display panel supporting member. With this configuration, both of the inner area and the outer peripheral portion of the back surface of the reflection sheet are pressed by the first recessed portion and the heat sink. Thus, the reflection sheet can more securely be pressed. Also, since the vicinity of the outer peripheral portion of the reflection sheet can be pressed by the heat sink that releases heat generated from the light source, it is not necessary to provide a member exclusive for pressing the vicinity of the outer peripheral portion of the reflection sheet separately. 
         [0093]    The display device according to the above-described first aspect further includes a cover member provided to cover an area of the back surface of the display panel supporting member other than the part of the back surface of the display panel supporting member that forms the rear chassis. The display panel supporting member has a second recessed portion formed to surround the first recessed portion. The cover member is provided to fit into the second recessed portion of the display panel supporting member and cover the first recessed portion of the display panel supporting member. With this configuration, for example, when a board and the like are provided on the first recessed portion, the board and the like can be concealed by the cover member. Consequently, it is possible to prevent the board and the like provided on the first recessed portion from being observed by a user. 
         [0094]    In this case, the depth of the second recessed portion of the display panel supporting member is larger than the depth of the first recessed portion of the display panel supporting member. With this configuration, the cover member can more easily be attached to the second recessed portion compared to the case where the depth of the second recessed portion of the display panel supporting member is smaller than the depth of the first recessed portion of the display panel supporting member because an inner side surface of the second recessed portion can serve as a guide when the cover member is attached to the second recessed portion. 
         [0095]    In the display device having the above-described first recessed portion and the above-described second recessed portion, the display panel supporting member is made of sheet metal, and the first recessed portion and the second recessed portion of the display panel supporting member are formed by drawing processing. With this configuration, the first recessed portion and the second recessed portion can easily be formed in the display panel supporting member by drawing processing. 
         [0096]    In the display device according to the above-described first aspect, the length in a longitudinal direction of the area of the back surface of the reflection sheet pressed by the first recessed portion of the display panel supporting member is equal to or greater than a half of the length in the longitudinal direction of the entire display panel supporting member. With this configuration, a relatively broad area of the back surface of the reflection sheet can be pressed compared to the case where the length in the longitudinal direction of the area of the back surface of the reflection sheet pressed by the first recessed portion of the display panel supporting member is less than a half of the length in the longitudinal direction of the entire display panel supporting member. Consequently, it is possible to securely prevent the inner area of the reflection sheet from being spaced apart backward. 
         [0097]    The display device according to the above-described first aspect further includes a light guide plate that diffuses light emitted from the light source. The light guide plate is provided in front of the reflection sheet, and the front surface of the first recessed portion of the display panel supporting member is arranged to press the reflection sheet against the light guide plate. With this configuration, the inner area of the front surface of the reflection sheet can be prevented from being spaced apart backward from the light guide plate by the first recessed portion. 
         [0098]    The television apparatus according to a second aspect includes a receiver, a display panel, a light source, a reflection sheet and a display panel supporting member. The receiver is capable of receiving a television broadcast. The reflection sheet reflects light emitted from the light source to the front side that is a display screen side of the reflection sheet. The display panel supporting member supports the display panel. The display panel supporting member is positioned on the back side that is an opposite side to the display screen side of the reflection sheet. A part of a back surface of the display panel supporting member on the opposite side to the display screen side forming a rear chassis. The display panel supporting member forming the rear chassis has a first recessed portion that is recessed toward the reflection sheet so as to press an inner area of the back surface of the reflection sheet except for the vicinity of an outer peripheral portion of the back surface of the reflection sheet. 
         [0099]    In the television apparatus according to this second aspect, as described above, the display panel supporting member forming the rear chassis has the first recessed portion that is recessed toward the reflection sheet so as to press the inner area of the back surface of the reflection sheet except for the vicinity of an outer peripheral portion of the back surface of the reflection sheet. Consequently, it is possible to provide the television apparatus in which the inner area of the back surface of the reflection sheet can be pressed by the first recessed portion of the rear chassis. Thus, it is possible to prevent the inner area of the reflection sheet from being spaced apart backward, unlike in the case of pressing only the vicinity of the outer peripheral portion of the reflection sheet by an L-shaped hook provided in a front chassis, for example. Also, since the inner area of the back surface of the reflection sheet can be pressed by the first recessed portion of the display panel supporting member forming the rear chassis, it is not necessary to provide a member exclusive for pressing the reflection sheet separately. 
         [0100]    As described above, with the display device and the television apparatus, the inner area of the reflection sheet can be prevented from being spaced apart backward. 
       Second Embodiment 
       [0101]    Referring now to  FIGS. 11 through 26 , a liquid crystal television apparatus  200  in accordance with a second embodiment will now be explained. In view of the similarity between the first and second embodiments, the parts of the second embodiment that are identical to the parts of the first embodiment or are functionally identical (but not exactly identical) to the parts of the first embodiment will be given the same reference numerals as the parts of the first embodiment. Moreover, the descriptions of the parts of the second embodiment that are identical to the parts of the first embodiment may be omitted for the sake of brevity. The liquid crystal television apparatus  200  is an example of the “display device” and the “television apparatus.” 
         [0102]    With the conventional display device described in Patent Citation 2, the reflection sheet abutting portion is formed by drawing processing. Generally, in a case of conducting drawing processing to a metal plate, a boundary portion of the portion to which drawing processing has been conducted with respect to the portion where the reflection sheet abutting portion and the reflection sheet abut each other (i.e., a base of the portion to which drawing processing has been conducted) has a curvature radius R which is equal to the thickness of the metal plate. When the curvature radius R of the boundary portion of the portion to which drawing processing has been conducted is small, there are cases where the boundary portion of the portion to which drawing processing has been conducted (i.e., the reflection sheet abutting portion) will have a shape raised toward the reflection sheet. Accordingly, the raised portion of the reflection sheet abutting portion compresses the reflection sheet and thus compresses the light guide plate, which causes a problem that a white spot will occur on a display screen corresponding to the compressed portion of the light guide plate. 
         [0103]    The liquid crystal television apparatus  200  is made to address the above-described circumstances. With the liquid crystal television apparatus  200 , a white spot is prevented from occurring on a display screen due to compression of the light guide plate. 
         [0104]    As shown in  FIGS. 11 through 13 , the liquid crystal television apparatus  200  has a rectangular shape. The liquid crystal television apparatus  200  has a frame-shaped front chassis  1 , a liquid crystal display panel  2  housed in the front chassis  1 , and a stand member  3  that supports the liquid crystal television apparatus  200  as a whole. The front chassis  1  and the stand member  3  are both made of resin. 
         [0105]    As shown in  FIG. 12  and  FIG. 14 , the liquid crystal television apparatus  200  further has a panel supporting member  104 . The panel supporting member  104  is made of sheet metal, such as SECC (steel electrolytic cold commercial or electrolytic zinc-coated steel sheet). The panel supporting member  104  is provided on a back surface side of the front chassis  1  (i.e., on the arrow Y 2  side). As shown in  FIG. 14 , the panel supporting member  104  has a rectangular shape as viewed from the back. The panel supporting member  104  is one example of the “supporting member.” 
         [0106]    The liquid crystal television apparatus  200  has a cover member  5 . The cover member  5  is made of resin, and is attached to a back surface or rear surface of the metal panel supporting member  104 . The cover member  5  has a rectangular shape as viewed from the back, and is formed to be smaller than the front chassis  1  and the panel supporting member  104 . 
         [0107]    Also, the cover member  5  covers the back surface of the panel supporting member  104  such that the vicinity of the outer peripheral portion of the back surface of the panel supporting member  104  is exposed in an inverted U shape viewed from the back. The rear chassis is constructed of an area  151  of the back surface of the panel supporting member  104  exposed outside, and the cover member  5 . The area  151  of the panel supporting member  104  exposed outside is configured to serve as a heat releasing portion that releases heat generated from an LED light source  106   a  and a heat generating element  81  (see  FIG. 15 ) of a circuit board  80  outside. The LED light source  106   a  is one example of the “light source.” 
         [0108]    As shown in  FIG. 14  and  FIG. 15 , the liquid crystal television apparatus  200  further has circuit boards  70  and  80 . The circuit board  70  has the function of supplying power to the apparatus as a whole, while the circuit board  80  has the function for signal processing. The circuit boards  70  and  80  are attached to an area  152  to which the cover member  5  of the back surface of the panel supporting member  104  is attached in an arrangement spaced apart from each other at a predetermined distance in the longitudinal direction X. The heat generating element  81 , such as an IC that generates heat in a normal use condition, is attached to the circuit board  80 . 
         [0109]    The panel supporting member  104  has a thermal pad attachment portion  141  that projects toward the inner surface of the cover member  5 . The thermal pad attachment portion  141  is formed in an area of the back surface (i.e., the surface on the arrow Y 2  side) of the panel supporting member  104  corresponding to the heat generating element  81  of the circuit board  80 . A thermal pad  82  is provided between the thermal pad attachment portion  141  of the panel supporting member  104  and the heat generating element  81  of the circuit board  80 . Thus, the heat generated from the heat generating element  81  is released toward the panel supporting member  104 . The thermal pad  82  is made of a mixed material of silicone polymer and ceramics. 
         [0110]    As shown in  FIG. 15 ,  FIG. 17  and  FIG. 18 , the liquid crystal television apparatus  200  further has a plurality of (three in this embodiment) reflection sheet holders  90   a,    90   b  and  90   c,  and a heat sink  110 . The reflection sheet holders  90   a,    90   b  and  90   c  and the heat sink  110  are made of sheet metal (SECC). The reflection sheet holders  90   a,    90   b  and  90   c  and the heat sink  110  are arranged in front of the panel supporting member  104  (i.e., on the arrow Y 1  side). Furthermore, the liquid crystal television apparatus  200  further has a reflection sheet  11 , a light guide plate  12 , a light diffusing sheet  13 , a lens sheet  14 , a frame-shaped resin frame  15 , and a plurality of (four in this embodiment) bezels  16 . The reflection sheet  11 , the light guide plate  12 , the light diffusing sheet  13 , the lens sheet  14 , the frame-shaped resin frame  15 , the liquid crystal display panel  2  to which a liquid crystal panel driving board  2   a  that drives the liquid crystal display panel  2  is attached, and the bezels  16  are arranged in front of the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110  (i.e., on the arrow Y 1  side). The heat sink  110  is one example of the “reflection sheet holding member” and the “reflection sheet holding portion.” The reflection sheet holders  90   a,    90   b  and  90   c  are examples of the “reflection sheet holding member” and the “reflection sheet holding portion.” The liquid crystal display panel  2  is one example of the “display panel.” 
         [0111]    Here, in this embodiment, as shown in  FIG. 17  and  FIG. 18 , the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110  are provided along four sides (i.e., the sides in the arrow Z 1  direction, the arrow Z 2  direction, the arrow X 1  direction, and the arrow X 2  direction) of the display area (i.e., the dashed line of  FIG. 18 ) of the liquid crystal display panel  2 . As described below, the reflection sheet holders  90   a  and  90   b  are fixed to the heat sink  110  by a plurality of screws  30 . Also, the reflection sheet holders  90   a  and  90   b  are fixed to the reflection sheet holder  90   c  by a plurality of screws  30 . Thus, the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110  are provided in a frame shape with being fixed by the screws  30 . Four sides of the reflection sheet  11  are pressed toward the light guide plate  12  by the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110 . More specifically, the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110  supports the reflection sheet  11 . In particular, the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110  contacts with the reflection sheet  11  in a frame shape (i.e., at the shaded area of  FIG. 18 ) on the outer peripheral portion side (e.g., the vicinity of the outer peripheral portion) of the display area of the liquid crystal display panel  2  without contacting with the reflection sheet  11  at the central portion of the display area. In other words, the reflection sheet holders  90   a,    90   b  and  90   c,  and the heat sink  110  contacts with the reflection sheet  11  in a frame shape area that corresponds to the vicinity of the outer peripheral portion of the display area (or outward of the outer peripheral portion of the display area) of the liquid crystal display panel  2  from the back side of the liquid crystal television apparatus  200 . 
         [0112]    As shown in  FIG. 18 , the heat sink  110  has first and second drawn portions  110   a  and  110   b  formed by drawing processing to be projected toward the panel supporting member  104 . The first drawn portion  110   a  is provided to bring the heat sink  110  and the panel supporting member  104  into surface-contact (see  FIG. 20 ) with each other. A portion of the first drawn portion  110   a  where a plurality of screw insertion holes  110   c  described below are formed (i.e., a portion on the arrow Z 1  side) is provided to bring the heat sink  110  and the reflection sheet holder  90   a  into surface-contact with each other. The second drawn portion  110   b  is provided to bring the heat sink  110  and the reflection sheet holder  90   b  into surface-contact with each other. The first drawn portion  110   a  is formed to have a substantially elongated shape in a plane view. The second drawn portion  110   b  is formed to have a substantially round shape in a plane view. The screw insertion holes  110   c  for attaching the reflection sheet holder  90   a  are formed in the first drawn portion  110   a.  Screw insertion holes  110   d  for attaching the panel supporting member  104  are also formed in the first drawn portion  110   a.  Screw insertion holes  110   c  for attaching the reflection sheet holder  90   b  are formed in the second drawn portion  110   b.  The first drawn portion  110   a  and the second drawn portion  110   b  are examples of the “drawn portion.” 
         [0113]    In this embodiment, the drawing processing is conducted such that the first drawn portion  110   a  is drawn relative to a contact portion where the reflection sheet  11  and the heat sink  110  contact with each other. The contact portion and the first drawn portion  110   a  define a boundary portion A 1  therebetween. Here, in this embodiment, as shown in  FIG. 20 , the drawing processing is conducted such that the boundary portion A 1  of the first drawn portion  110   a  with respect to the contact portion where the reflection sheet  11  and the heat sink  110  abut each other (i.e., a base of the first drawn portion  110   a  on the reflection sheet  11  side or an outer peripheral portion of the first drawn portion  110   a  having a substantially elongated shape in a plane view, see  FIG. 18 ) has a radius of curvature (R) larger than a thickness t 1  of the sheet metal forming the heat sink  110 . Specifically, the boundary portion A 1  of the first drawn portion  110   a  with respect to the contact portion where the reflection sheet  11  and the heat sink  110  abut each other is configured to have the radius of curvature that is three times (i.e., 3×t 1 ) or more and six times (i.e., 6×t 1 ) or less of the thickness t 1  of the sheet metal forming the heat sink  110 . More specifically, the thickness t 1  of the sheet metal forming the heat sink  110  is 0.6 mm, and the radius of curvature (R) of the boundary portion A 1  of the first drawn portion  110   a  is 1.8 mm (i.e., 3×t 1 ) or more and 3.6 mm (i.e., 6×t 1 ) or less. As best shown in  FIG. 20 , an outer edge portion  110   e  (e.g., inner edge portion) of the heat sink  110  on the center side (i.e., on the arrow X 1  side) of the display area is spaced apart from the reflection sheet  11  without contacting the reflection sheet  11 . A portion (e.g., a third drawn portion  110   g ) between the outer edge portion  110   e  of the heat sink  110  on the center side of the display area and the first drawn portion  110   a  is also formed by drawing processing. In this embodiment, the drawing processing is conducted such that the third drawn portion  110   g  is drawn relative to a contact portion where the reflection sheet  11  and the heat sink  110  contact with each other. The contact portion and the third drawn portion  110   g  define a boundary portion A 2  therebetween. The drawing processing is conducted such that the boundary portion A 2  of the third drawn portion  110   g  with respect to the contact portion where the reflection sheet  11  and the heat sink  110  abut each other (i.e., a base of the third drawn portion  110   g ) has a radius of curvature (R) larger than the thickness t 1  (e.g., 0.6 mm) of the sheet metal forming the heat sink  110 . In particular, the radius of curvature of the boundary portion A 2  is three times (i.e., 3×t 1  (e.g., 1.8 mm)) or more and six times (i.e., 6×t 1  (e.g., 3.6 mm)) or less of the thickness t 1  of the sheet metal forming the heat sink  110 . Further, in this embodiment, the drawing processing is conducted such that the second drawn portion  110   b  is drawn relative to a contact portion where the reflection sheet  11  and the heat sink  110  contact with each other. The contact portion and the second drawn portion  110   b  define a boundary portion A 3  therebetween. The drawing processing is conducted such that the boundary portion A 3  of the second drawn portion  110   b  with respect to the contact portion where the reflection sheet  11  and the heat sink  110  abut each other (i.e., a base of the second drawn portion  110   b  on the reflection sheet  11  side, or an outer peripheral portion of the second drawn portion  110   b  having a substantially round shape, see  FIG. 18 ) has a radius of curvature (R) larger than the thickness t 1  (e.g., 0.6 mm) of the sheet metal forming the heat sink  110 . In particular, the radius of curvature of the boundary portion A 3  is three times (i.e., 3×t 1  (e.g., 1.8 mm)) or more and six times (i.e., 6×t 1  R (e.g., 3.6 mm)) or less of the thickness t 1  of the sheet metal forming the heat sink  110 . As shown in  FIG. 18 , screw insertion holes  110   f  for attaching the bezels  16  are formed in the upper end portion and the lower end portion of the heat sink  110 , respectively. The third drawn portion  110   g  is one example of the “drawn portion.” 
         [0114]    As shown in  FIG. 20 , an outer surface  101  of the first drawn portion  110   a  of the heat sink  110  is formed to have a flat surface shape, and is provided to surface-contact an inner surface  153  of the panel supporting member  104 . Also, the heat generated from the LED light source  106   a  is released from the area  151  of the panel supporting member  104  exposed outside through the heat sink  110 . 
         [0115]    As shown in  FIG. 18 , the reflection sheet holder  90   c  has a first drawn portion  911   c  and two second drawn portions  912   c  formed by drawing processing to be projected toward the panel supporting member  104 . The first drawn portion  911   c  is provided to increase the mechanical strength of the reflection sheet holder  90   c.  The second drawn portion  912   c  on the arrow Z 1  side is provided to bring the reflection sheet holder  90   c  and the reflection sheet holder  90   a  into surface-contact with each other. The second drawn portion  912   c  on the arrow Z 2  side is provided to bring the reflection sheet holder  90   c  and the reflection sheet holder  90   b  into surface-contact with each other. The first drawn portion  911   c  is formed to have a substantially elongated shape in a plane view. The second drawn portions  912   c  are formed to have a substantially round shape in a plane view. Screw insertion holes  91   c  for attaching the reflection sheet holder  90   a  and the reflection sheet holder  90   b  are formed in the second drawn portions  912   c.  Screw insertion holes  92   c  for attaching the bezels  16  are formed in the upper end portion and the lower end portion of the reflection sheet holder  90   c,  respectively. The first drawn portion  911   c  and the second drawn portions  912   c  are examples of the “drawn portion.” 
         [0116]    In this embodiment, the drawing processing is conducted such that the first drawn portion  911   c  is drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   c  contact with each other. The contact portion and the first drawn portion  911   c  define a boundary portion A 4  therebetween. Here, in this embodiment, as shown in  FIG. 21 , the drawing processing is conducted such that the boundary portion A 4  of the first drawn portion  911   c  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   c  abut each other (i.e., a base of the first drawn portion  911   c  on the reflection sheet  11  side, or an outer peripheral portion of the first drawn portion  911   c  having a substantially elongated shape in a plane view, see  FIG. 18 ) has a radius of curvature larger than a thickness t 2  (e.g., 0.6 mm) of the sheet metal forming the reflection sheet holder  90   c.  In particular, the radius of curvature of the boundary portion A 4  is three times (i.e., 3×t 2  (e.g., 1.8 mm)) or more and six times (i.e., 6×t 2  R (e.g., 3.6 mm)) or less of the thickness t 2  of the sheet metal forming the reflection sheet holder  90   c.  As shown in  FIG. 21 , an outer edge portion  913   c  (e.g., an inner edge portion) of the reflection sheet holder  90   c  on the center side of the display area is spaced apart from the reflection sheet  11  without contacting the reflection sheet  11 . A portion (e.g., third drawn portion  914   c ) between the outer edge portion  913   c  of the reflection sheet holder  90   c  on the center side of the display area and the first drawn portion  911   c  is also formed by drawing processing. The drawing processing is conducted such that the third drawn portion  914   c  is drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   c  contact with each other. The contact portion and the third drawn portion  914   c  define a boundary portion A 5  therebetween. The drawing processing is conducted such that the boundary portion A 5  of the third drawn portion  914   c  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   c  abut each other (i.e., a base of the third drawn portion  914   c ) has a radius of curvature larger than the thickness t 2  (e.g., 0.6 mm) of the sheet metal forming the reflection sheet holder  90   c.  In particular, the radius of curvature of the boundary portion A 5  is three times (i.e., 3×t 2  (e.g., 1.8 mm)) or more and six times (i.e., 6×t 2  R (e.g., 3.6 mm)) or less of the thickness t 2  of the sheet metal forming the reflection sheet holder  90   c.  Further, in this embodiment, the drawing processing is conducted such that the second drawn portion  912   c  is drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   c  contact with each other. The contact portion and the second drawn portion  912   c  define a boundary portion A 6  therebetween. The drawing processing is conducted such that boundary portions A 6  of the second drawn portions  912   c  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   c  abut each other (i.e., bases of the second drawing portions  912   c  on the reflection sheet  11  side, or outer peripheral portions of the second drawing portions  912   c  having a substantially round shape, see  FIG. 18 ) has a radius of curvature larger than the thickness t 2  of the sheet metal forming the reflection sheet holder  90   c  (e.g., three times or more and six times or less of the thickness t 2 ). The third drawn portion  914   c  is one example of the “drawn portion.” 
         [0117]    As shown in  FIG. 18 , the reflection sheet holder  90   a  has a plurality of first drawn portions  911   a  formed by drawing processing to be projected toward the panel supporting member  104 . The first drawn portions  911   a  are provided to bring the reflection sheet holder  90   a  and the liquid crystal panel driving board  2   a  into surface-contact with each other. Screw insertion holes  912   a  for fixing the liquid crystal panel driving board  2   a  are formed in the first drawn portions  911   a.  A second drawn portion  913   a  is provided in the reflection sheet holder  90   a  to increase the mechanical strength of the reflection sheet holder  90   a.  The first drawn portions  911   a  and the second drawn portion  913   a  are examples of the “drawn portion.” 
         [0118]    Here, in this embodiment, as shown in  FIG. 24 , an outer edge portion  914   a  (e.g., inner edge portion) of the reflection sheet holder  90   a  on the center side of the display area is spaced apart from the reflection sheet  11  without contacting the reflection sheet  11 . A portion (e.g., a third drawn portion  915   a ) between the outer edge portion  914   a  of the reflection sheet holder  90   a  on the center side of the display area and a portion where the reflection sheet holder  90   a  and the reflection sheet  11  abut each other is also formed by drawing processing. The drawing processing is conducted such that the third drawn portion  915   a  is drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   a  contact with each other. The contact portion and the third drawn portion  915   a  define a boundary portion A 7  therebetween. The drawing processing is conducted such that the boundary portion A 7  of the third drawn portion  915   a  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   a  abut each other (i.e., a base of the third drawn portion  915   a ) has a radius of curvature larger than a thickness t 3  (e.g., 0.6 mm) of the sheet metal forming the reflection sheet holder  90   a.  In particular, the radius of curvature of the boundary portion A 7  is three times (i.e., 3×t 3  (e.g., 1.8 mm)) or more and six times (i.e., 6×t 3  R (e.g., 3.6 mm)) or less of the thickness t 3  of the sheet metal forming the reflection sheet holder  90   a.  Further, in this embodiment, the drawing processing is conducted such that the first drawn portions  911   a  are drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   a  contact with each other. The contact portion and the first drawn portions  911   a  define boundary portions A 8  therebetween. Furthermore, the drawing processing is conducted such that the second drawn portions  913   a  are drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   a  contact with each other. The contact portion and the second drawn portions  913   a  define a boundary portions A 9  therebetween. In particular, the drawing processing is conducted such that the boundary portions A 8  of the first drawn portions  911   a  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   a  abut each other (i.e., bases of the first drawn portions  911   a  on the reflection sheet  11  side, or outer peripheral portions of the first drawn portions  911   a,  see  FIG. 18 ), and the boundary portion A 9  of the second drawn portion  913   a  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   a  abut each other (i.e., a base of the second drawn portion  913   a  on the reflection sheet  11  side, or an outer peripheral portion of the second drawn portion  913   a,  see  FIG. 18 ) have a radius of curvature larger than the thickness t 3  of the sheet metal forming the reflection sheet holder  90   a  (e.g., three times or more and six times or less of the thickness t 3 ). The third drawn portion  915   a  is one example of the “drawn portion.” 
         [0119]    As shown in  FIG. 18 , the reflection sheet holder  90   b  has two drawn portions  911   b  formed by drawing processing. The drawn portions  911   b  are provided to bring the reflection sheet holder  90   b  and the reflection sheet  11  into surface-contact with each other. Here, in this embodiment, the drawing processing is conducted such that the drawn portions  911   b  are drawn relative to a contact portion where the reflection sheet  11  and the reflection sheet holder  90   b  contact with each other. The contact portion and the drawn portions  911   b  define boundary portions A 10  therebetween. The drawing processing is conducted such that the boundary portions A 10  of the drawn portions  911   b  with respect to the contact portion where the reflection sheet  11  and the reflection sheet holder  90   b  abut each other (i.e., bases of the drawn portions  911   b ) has a radius of curvature larger than a thickness t 4  (e.g., 0.6 mm) of the sheet metal forming the reflection sheet holder  90   b.  In particular, the radius of curvature of the boundary portion A 10  is three times (i.e., 3×t 4  (e.g., 1.8 mm)) or more and six times (i.e., 6×t 4  R (e.g., 3.6 mm)) or less of the thickness t 4  of the sheet metal forming the reflection sheet holder  90   b.  As shown in  FIG. 25 , outer edge portions  912   b  (e.g., inner edge portions) of the drawn portions  911   b  of the reflection sheet holder  90   b  on the center side of the display area are spaced apart from the reflection sheet  11  without contacting the reflection sheet  11 . 
         [0120]    As shown in  FIG. 17 , a plurality of heat sink attachment threaded holes  91   a  and a plurality of heat sink attachment threaded holes  91   b  for attaching the heat sink  110  are formed at the left ends of the reflection sheet holder  90   a  and the reflection sheet holder  90   b,  respectively. Furthermore, a plurality of reflection sheet holder attachment threaded holes  92   a  and a plurality of reflection sheet holder attachment threaded holes  92   b  for attaching the reflection sheet holder  90   c  are formed at the right ends of the reflection sheet holder  90   a  and the reflection sheet holder  90   b,  respectively. The heat sink  110 , the reflection sheet holder  90   a,  and the reflection sheet holder  90   b  are fixed by fastening the screws  30  (see  FIG. 15 ) into the heat sink attachment threaded holes  91   a  of the reflection sheet holder  90   a  and the heat sink attachment threaded holes  91   b  of the reflection sheet holder  90   b  through the screw insertion holes  110   c  of the heat sink  110 . The reflection sheet holder  90   a,  the reflection sheet holder  90   b,  and the reflection sheet holder  90   c  are fixed by fastening the screws  30  into the reflection sheet holder attachment threaded holes  92   a  of the reflection sheet holder  90   a  and the reflection sheet holder attachment threaded holes  92   b  of the reflection sheet holder  90   b  through the screw insertion holes  91   c  of the reflection sheet holder  90   c.    
         [0121]    The bezels  16 , the heat sink  110 , the reflection sheet holder  90   a,  and the reflection sheet holder  90   b  are fixed by fastening the screws  30  into bezel attachment threaded holes  93   a  and  93   b  formed at the left ends of the reflection sheet holders  90   a  and  90   b,  respectively, through screw insertion holes  16   a  of the bezels  16  and the screw insertion holes  110   f  of the heat sink  110 . The bezels  16 , the reflection sheet holder  90   a,  the reflection sheet holder  90   b,  and the reflection sheet holder  90   c  are fixed by fastening the screws  30  into a bezel attachment threaded hole  93   a  formed at the right end of the reflection sheet holder  90   a  through the screw insertion hole  16   a  of the bezels  16  and the screw insertion hole  92   c  in the upper end portion of the reflection sheet holder  90   c,  and by fastening the screws  30  into a bezel attachment threaded hole  93   b  formed at the right end of the reflection sheet holder  90   b  through the screw insertion hole  16   a  of the bezels  16  and the screw insertion hole  92   c  in the lower end portion of the reflection sheet holder  90   c.    
         [0122]    As shown in  FIG. 17 , the liquid crystal panel driving board  2   a  that drives the liquid crystal display panel  2  is attached to the back surface of the reflection sheet holder  90   a  provided in the vicinity of the side of the front chassis  1  on the arrow Z 1  side. 
         [0123]    As shown in  FIG. 20 , the LED light source  106   a  for a back light with a plurality of LEDs is provided on the side of the light guide plate  12 . The LED light source  106   a  generates heat in a normal use condition of the liquid crystal television apparatus  200 . Also, the LED light source  106   a  is attached to a surface of an LED board  106   b  on the arrow X 1  side. A surface of the LED board  106   b  on the arrow X 2  side (i.e., the opposite surface of the surface to which the LED light source  106   a  is attached) is attached to a surface of the heat sink  110  on the arrow X 1  side trough a heat release tape or sheet  106   c.    
         [0124]    Here, in this embodiment, as shown in  FIG. 19  through  FIG. 26 , the panel supporting member  104  is provided at a predetermined distance from the reflection sheet  11  without contacting the reflection sheet  11  in an area corresponding to the display area (i.e., the dashed line in  FIG. 18 ). Specifically, the panel supporting member  104  is provided at a distance D (see  FIG. 22  and  FIG. 26 ) of 1 mm or more and 2 mm or less from the reflection sheet  11  in the area corresponding to the display area where the panel supporting member  104  and the reflection sheet  11  are closest to each other. The reflection sheet  11  can be prevented from warping by providing the panel supporting member  104  at the distance D of 1 mm or more and 2 mm or less from the reflection sheet  11  in the area where the panel supporting member  104  and the reflection sheet  11  are closest to each other. 
         [0125]    As shown in  FIG. 15 , a plurality of board attachment portions  142  to which the circuit board  70  and the circuit board  80  are attached, respectively, are formed in the back surface (or bottom surface) of the panel supporting member  104 . Each of the board attachment portions  142  is formed to be projected toward the cover member  5 . A plurality of screw insertion holes  70   a  for inserting screws  30  are formed in the outer edge portion of the circuit board  70 . The circuit board  70  is fixed to the panel supporting member  104  by fastening the screws  30  into a plurality of board attachment threaded holes  4   a  of the panel supporting member  104  through the screw insertion holes  70   a  of the circuit board  70 . 
         [0126]    A plurality of screw insertion holes  80   a  for inserting the screw  30  are formed in the outer edge portion of the circuit board  80 . The circuit board  80  is fixed to the panel supporting member  104  by fastening the screws  30  into the board attachment threaded holes  4   a  of the panel supporting member  104  through the screw insertion holes  80   a  of the circuit board  80 . 
         [0127]    A plurality of screw insertion holes  4   b  for inserting the screw  30  are formed in the back surface of the panel supporting member  104  along the outer edge portion thereof. The panel supporting member  104  is fixed to the front chassis  1  by fastening the screws  30  into a plurality of rear chassis attachment threaded holes  1   a  of the front chassis  1  through the screw insertion holes  4   b  of the panel supporting member  104 . 
         [0128]    A plurality of cover member attachment threaded holes  4   c  for attaching the cover member  5  are formed in the back surface of the panel supporting member  104 . A plurality of screw insertion holes  5   a  are formed in the cover member  5 . The cover member  5  is fixed to the panel supporting member  104  by fastening the screws  30  into the cover member attachment threaded holes  4   c  of the panel supporting member  104  through the screw insertion holes  5   a  of the cover member  5 , respectively. As viewed from the back, the screw  30  fastened into the screw insertion hole  5   a  located at the upper left of the cover member  5  is fastened into the board attachment threaded hole  4   a  at the upper left of the panel supporting member  104  through the screw insertion hole  70   a  at the upper left of the circuit board  70 . 
         [0129]    Recessed portions  4   d  recessed toward the heat sink  110  are formed in portions of the panel supporting member  104  corresponding to the screw insertion holes  110   d  of the heat sink  110 . Screw insertion holes  4   e  for attaching the screw  30  are formed in the recessed portions  4   d.  The panel supporting member  104  and the heat sink  110  are fixed (or pressed) to each other in a surface-contact state by fastening the screws  30  into the screw insertion holes  110   d  of the heat sink  110  through the screw insertion holes  4   e  of the panel supporting member  104 . 
         [0130]    The cover member  5  is attached by the screws  30  to the cover member attachment threaded holes  4   c  formed in the lower portion among the cover member attachment threaded holes  4   c  formed in the back surface of the panel supporting member  104  such that a speaker attachment member  117  is sandwiched therebetween. The two speakers  118  are attached to the speaker attachment member  117 . Also, the cover member  5  is attached to cover the circuit board  70 , the circuit board  80 , and the speaker attachment member  117  to which the two speakers  118  are attached, from the back. 
         [0131]    The circuit board  80  for signal processing attached to the panel supporting member  104  has a receiver or tuner  19  capable of receiving a television broadcast. As shown in  FIG. 16 , in the liquid crystal television apparatus  200 , the receiver  19  is connected to the liquid crystal display panel  2  and the speakers  118 , and is configured to output to the liquid crystal display panel  2  a video signal from the television broadcast signal (video signal and audio signal) received by an antenna  60  and output an audio signal to the speakers  118 . 
         [0132]    In this embodiment, as described above, the drawing processing is conducted such that the boundary portions A 1 -A 3  of the first, second and third drawn portions  110   a,    110   b  and  110   g  of the heat sink  110  (or the boundary portions A 4 -A 10  of the first, second and third drawn portions  911   a,    913   a  and  915   a  of the reflection sheet holder  90   a,  the drawn portion  911   b  of the reflection sheet holder  90   b,  and the first, second and third drawn portions  911   c,    912   c  and  914   c  of the reflection sheet holder  90   c ) with respect to the portion where the reflection sheet  11  and the heat sink  110  (or the reflection sheet holders  90   a,    90   b  and  90   c ) abut each other have a radius of curvature larger than the thickness t 1  (or t 3 , t 4  and t 2 ) of the sheet metal forming the heat sink  110  (or the reflection sheet holders  90   a,    90   b  and  90   c ). Thus, the boundary portion of the drawn portion has a large radius of curvature, a surface of the boundary portion becomes gentle, and the boundary portion is prevented from being raised toward the reflection sheet  11 . Consequently, a white spot can be prevented from occurring on the liquid crystal display panel  2  due to compression of the light guide plate  12  caused by compression of the reflection sheet  11 . Here, in the case of sheet metal, the boundary portion of the drawn portion will easily be raised toward the reflection sheet  11 . In order to prevent this situation, it is especially effective to make the radius of curvature of the boundary portion of the drawn portion larger than the thickness of the sheet metal forming the heat sink  110  (or the reflection sheet holders  90   a,    90   b  and  90   c ) so as to make the surface of the boundary portion gentle. 
         [0133]    In this embodiment, as described above, the boundary portions A 1 -A 3  of the first, second and third drawn portions  110   a,    110   b  and  110   g  of the heat sink  110  (or the boundary portions A 4 -A 10  of the first, second and third drawn portions  911   a,    913   a  and  915   a  of the reflection sheet holder  90   a,  the drawn portion  911   b  of the reflection sheet holder  90   b,  and the first, second and third drawn portions  911   c,    912   c  and  914   c  of the reflection sheet holder  90   c ) have a radius of curvature that is three times or more and six times or less of the thickness t 1  (or t 3 , t 4  and t 2 ) of the sheet metal forming the heat sink  110  (or the reflection sheet holders  90   a,    90   b  and  90   c ). Consequently, the surface of the boundary portion can securely be made gentle, the boundary portion of the drawn portion can securely be prevented from being raised toward the reflection sheet  11 , and thus a white spot can securely be prevented from occurring on the liquid crystal display panel  2  due to compression of the reflection sheet  11 . 
         [0134]    In this embodiment, as described above, the reflection sheet  11  is held by the heat sink  110 . Consequently, by using the heat sink  110  that releases heat generated from the LED light source  106   a  as a member for holding the reflection sheet  11 , the number of parts can be reduced and a white spot can securely be prevented from occurring on the liquid crystal display panel  2 . 
         [0135]    In this embodiment, as described above, the reflection sheet holder  90   a,  the reflection sheet holder  90   b,  the reflection sheet holder  90   c,  and the heat sink  110  are configured to abut the reflection sheet  11  in a frame shape on the outer peripheral portion side of the display area (in the vicinity of the outer peripheral portion). Consequently, an area of the reflection sheet  11  corresponding to a central portion of the display area can be prevented from being compressed by the reflection sheet holder  90   a,  the reflection sheet holder  90   b,  the reflection sheet holder  90   c,  and the heat sink  110 , and thus a white spot can securely be prevented from occurring in the central portion of the display area. 
         [0136]    In this embodiment, as described above, the reflection sheet holder  90   a,  the reflection sheet holder  90   b,  the reflection sheet holder  90   c,  and the heat sink  110  are respectively provided in a frame shape along four sides of the display area of the liquid crystal display panel  2  (i.e., the sides in the arrow Z 1  direction, the arrow Z 2  direction, the arrow X 1  direction, and the arrow X 2  direction) (see the dashed line of  FIG. 18 ), and press four sides of the reflection sheet  11  toward the light guide plate  12 . Consequently, the outer peripheral portion of the reflection sheet  11  can easily be held by the reflection sheet holder  90   a,  the reflection sheet holder  90   b,  the reflection sheet holder  90   c,  and the heat sink  110  provided in a frame shape, and thus the reflection sheet  11  can easily be prevented from being displaced or moving. 
         [0137]    In this embodiment, as described above, the outer edge portion  110   e  of the heat sink  110  on the center side of the display area (or the outer edge portions  914   a,    912   b  and  913   c  of the reflection sheet holders  90   a,    90   b  and  90   c  on the center side of the display area) is spaced apart from the reflection sheet  11  without contacting the reflection sheet  11 . Consequently, since the outer edge portion  110   e  of the heat sink  110  on the center side of the display area (or the outer edge portions  914   a,    912   b  and  913   c  of the reflection sheet holders  90   a,    90   b  and  90   c ) is spaced apart from the reflection sheet  11 , a white spot can be prevented from occurring on the liquid crystal display panel  2  due to a situation where the outer edge portion  110   e  (or the outer edge portions  914   a,    912   b  and  913   c ) compresses the reflection sheet  11 . 
         [0138]    In this embodiment, as described above, the panel supporting member  104  forming the rear chassis is provided at a predetermined distance from the reflection sheet  11  without contacting the reflection sheet  11  in an area corresponding to the display area. Consequently, since the reflection sheet  11  is prevented from being compressed by the panel supporting member  104  in the area corresponding to the display area, a white spot can be prevented from occurring on the liquid crystal display panel  2  due to a situation where the panel supporting member  104  compresses the reflection sheet  11 . 
         [0139]    In this embodiment, as described above, the panel supporting member  104  is provided at a distance of 1 mm or more from the reflection sheet  11  in the area corresponding to the display area. Consequently, a white spot can securely be prevented from occurring on the liquid crystal display panel  2  due to a situation where the panel supporting member  104  compresses the reflection sheet  11 . 
         [0140]    The embodiment described herein is in all respects merely examples, and shall not be construed as limiting the present invention. The scope of the present invention is defined by the claims and not by the above-described embodiments, and includes all equivalents to the claims and modifications within the intended scope thereof. 
         [0141]    For example, in the present application, a liquid crystal television apparatus is described as an example of the display device or television apparatus. However, the present invention is not limited to this. For example, the present application can also be applied to a display device such as a monitor of a personal computer other than a television apparatus, or to a television apparatus other than a liquid crystal television apparatus. 
         [0142]    In the above-described embodiment, the boundary portion of the drawn portion of the heat sink (or reflection sheet holder) with respect to the portion where the reflection sheet and the heat sink (or reflection sheet holder) abut each other has a radius of curvature that is three times or more and six times or less of the thickness of the sheet metal forming the heat sink (or reflection sheet holder). However, the present invention is not limited to this. For example, it is sufficient for the radius of curvature of the boundary portion of the drawn portion to be larger than the thickness of the sheet metal forming the heat sink and the reflection sheet holder. 
         [0143]    In the above-described embodiment, the heat sink and the reflection sheet holders are provided in a frame shape, and the heat sink and the reflection sheet holders abut the reflection sheet in the outer peripheral portion of the liquid crystal display panel without abutting in the central portion of the liquid crystal display panel. However, the present invention is not limited to this. For example, the heat sink and the reflection sheet holders can abut the reflection sheet in the central portion of the liquid crystal display panel. 
         [0144]    In the above-described embodiment, the metal heat sink and the metal panel supporting member made of sheet metal (SECC) are used. However, the present invention is not limited to this. For example, a heat sink or a panel supporting member made of a material such as aluminum other than sheet metal (SECC) can be used as long as it is possible to release heat generated from the LED light source or the heat generating element. Also, the thickness of the heat sink made of aluminum and the like can be larger (for example, 1.0 mm) than the thickness (0.6 mm) of the metal heat sink made of sheet metal (SECC). Consequently, heat generated from the heat generating element can be released effectively. 
         [0145]    The display device according to a first aspect includes a light source, a reflection sheet and a reflection sheet holding member. The reflection sheet reflects light emitted from the light source to the front side that is a display screen side. The reflection sheet holding member abuts the reflection sheet from the back in the vicinity of an outer peripheral portion of a display area of a display screen and holds the reflection sheet. The reflection sheet holding member is made of a plate-shaped metal member, and has a drawn portion formed by conducting drawing processing to the plate-shaped metal member. The drawing processing is conducted such that a boundary portion of the drawn portion with respect to a portion where the reflection sheet and the reflection sheet holding member abut each other has a radius of curvature larger than a thickness of the plate-shaped metal member. 
         [0146]    In the display device according to this first aspect, as described above, the drawing processing is conducted such that the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other has the radius of curvature larger than the thickness of the plate-shaped metal member. Thus, the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other has a large radius of curvature, a surface of the boundary portion becomes gentle, and the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other is prevented from being raised toward the reflection sheet. As a result, a white spot can be prevented from occurring on the display screen due to compression of the light guide plate caused by compression of the reflection sheet. Here, in the case of a plate-shaped metal member, the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other will easily be raised toward the reflection sheet. In order to prevent this situation, it is especially effective to make the radius of curvature of the boundary portion of the drawn portion larger than the thickness of the plate-shaped metal member so as to make the surface of the boundary portion gentle. 
         [0147]    In the display device according to the above-described first aspect, the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other has the radius of curvature that is three times or more and six times or less of the thickness of the plate-shaped metal member. With this configuration, the surface of the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other can securely be made gentle, and the boundary portion can securely be prevented from being raised toward the reflection sheet. Consequently, a white spot can securely be prevented from occurring on the display screen due to compression of the reflection sheet. 
         [0148]    In the display device according to the above-described first aspect, the reflection sheet holding member includes a heat sink for releasing heat generated from the light source. With this configuration, by using the heat sink for releasing heat generated from the light source as the reflection sheet holding member, the number of parts can be reduced and a white spot can securely be prevented from occurring on the display screen. 
         [0149]    In the display device according to the above-described first aspect, the reflection sheet holding member is configured to abut the reflection sheet in a frame shape on the outer peripheral portion side of the display area. With this configuration, an area of the reflection sheet corresponding to a central portion of the display area can be prevented from being compressed by the reflection sheet holding member. Thus, a white spot can securely be prevented from occurring in the central portion of the display area. 
         [0150]    In this case, the reflection sheet holding member includes a plurality of reflection sheet holding portions. The reflection sheet holding portions are respectively provided in a frame shape along four sides of the display area, and configured to press four sides of the reflection sheet. With this configuration, the outer peripheral portion of the reflection sheet can easily be held by the plurality of reflection sheet holding portions provided in a frame shape. Thus, the reflection sheet can easily be prevented from being displaced or moving. 
         [0151]    In the display device according to the above-described first aspect, at least a part of an outer edge portion of the reflection sheet holding member on the center side of the display area is spaced apart from the reflection sheet without contacting the reflection sheet. With this configuration, since at least a part of the outer edge portion of the reflection sheet holding member on the center side of the display area is spaced apart from the reflection sheet, a white spot can be prevented from occurring on the display screen due to a situation where the outer edge portion of the reflection sheet holding member on the center side of the display area compresses the reflection sheet. 
         [0152]    In the display device according to the above-described first aspect, the display device further includes a supporting member that is arranged on a side of the reflection sheet holding member opposite to the reflection sheet and configured such that a part of the supporting member forms a rear chassis. The supporting member is provided at a predetermined distance from the reflection sheet without contacting the reflection sheet in an area corresponding to the display area. With this configuration, since the reflection sheet is prevented from being compressed by the supporting member in the area corresponding to the display area, a white spot can be prevented from occurring on the display screen due to a situation where the supporting member compresses the reflection sheet. 
         [0153]    In this case, the supporting member is provided at a distance of 1 mm or more from the reflection sheet in the area corresponding to the display area. With this configuration, a white spot can securely be prevented from occurring on the display screen due to a situation where the supporting member compresses the reflection sheet. 
         [0154]    The television apparatus according to a second aspect includes a receiver, a display panel, a light source, a reflection sheet and a reflection sheet holding member. The receiver is capable of receiving a television broadcast. The display panel displays the television broadcast received by the receiver. The reflection sheet reflects light emitted from the light source to the front side that is a display screen side. The reflection sheet holding member abuts the reflection sheet from the back in the vicinity of an outer peripheral portion of a display area of a display screen and holds the reflection sheet. The reflection sheet holding member is made of a plate-shaped metal member, and has a drawn portion formed by conducting drawing processing to the plate-shaped metal member. The drawing processing is conducted such that a boundary portion of the drawn portion with respect to a portion where the reflection sheet and the reflection sheet holding member abut each other has a radius of curvature larger than a thickness of the plate-shaped metal member. 
         [0155]    In the television apparatus according to this second aspect, as described above, the drawing processing is conducted such that the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other has the radius of curvature larger than the thickness of the plate-shaped metal member. Thus, the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other has a large radius of curvature, a surface of the boundary portion becomes gentle, and the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other is prevented from being raised toward the reflection sheet. As a result, a white spot can be prevented from occurring on the display screen due to compression of the light guide plate caused by compression of the reflection sheet. Here, in the case of a plate-shaped metal member, the boundary portion of the drawn portion with respect to the portion where the reflection sheet and the reflection sheet holding member abut each other will easily be raised toward the reflection sheet. In order to prevent this situation, it is especially effective to make the radius of curvature of the boundary portion of the drawn portion larger than the thickness of the plate-shaped metal member so as to make the surface of the boundary portion gentle. 
         [0156]    As described above, with the display device and the television apparatus a white spot can be prevented from occurring on the display screen due to compression of the reflection sheet. 
         [0157]    In accordance with a first mode, a display device comprises: a light source configured to emit light; a reflection sheet configured to reflect the light emitted from the light source to a front side of the display device; a display panel arranged relative to the reflection sheet; and a display panel supporting member supporting the display panel, the display panel supporting member being disposed on a back side of the display device relative to the reflection sheet with the back side of the display device being an opposite side to the front side of the display device, a part of a back surface of the display panel supporting member disposed on the back side of the display device relative to the reflection sheet forming a rear chassis, the display panel supporting member having a first recessed portion that is recessed toward the reflection sheet such that the first recessed portion presses an inner area of a back surface of the reflection sheet except for a vicinity of an outer peripheral portion of the back surface of the reflection sheet. 
         [0158]    In accordance with a second mode, with the display device according to the first mode, the first recessed portion of the display panel supporting member has a front surface that is arranged to press the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet in a state of surface-contacting with the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. 
         [0159]    In accordance with a third mode, with the display device according to the second mode, the front surface of the first recessed portion of the display panel supporting member is configured such that an outer edge portion of a contact area of the front surface of the first recessed portion that surface-contacts with the back surface of the reflection sheet has a curved cross-sectional shape. 
         [0160]    In accordance with a fourth mode, the display device according to the first mode further comprises a heat sink disposed on the front side of the display device relative to the display panel supporting member and outside the first recessed portion, the heat sink pressing the vicinity of the outer peripheral portion of the back surface of the reflection sheet while first recessed portion of the display panel supporting member pressing the inner area of the back surface of the reflection sheet except for the vicinity of the outer peripheral portion of the back surface of the reflection sheet. 
         [0161]    In accordance with a fifth mode, the display device according to the first mode further comprises a cover member arranged to cover an area of the back surface of the display panel supporting member other than the part of the back surface of the display panel supporting member forming the rear chassis, the display panel supporting member further having a second recessed portion that surrounds the first recessed portion, the cover member being fitted into the second recessed portion of the display panel supporting member such that the cover member covers the first recessed portion of the display panel supporting member. 
         [0162]    In accordance with a sixth mode, with the display device according to the fifth mode, the second recessed portion of the display panel supporting member has a depth that is larger than that of the first recessed portion of the display panel supporting member. 
         [0163]    In accordance with a seventh mode, with the display device according to the fifth mode, the display panel supporting member is made of sheet metal, the first and second recessed portions of the display panel supporting member being formed by drawing processing. 
         [0164]    In accordance with an eighth mode, with the display device according to the first mode, the inner area of the back surface of the reflection sheet that is pressed by the first recessed portion of the display panel supporting member has a length in a first direction of the display device that is equal to or greater than a half of an entire length of the display panel supporting member in the first direction of the display device. 
         [0165]    In accordance with a ninth mode, the display device according to the first mode further comprises a light guide plate configured to diffuse the light emitted from the light source, the light guide plate being disposed on the front side of the display device relative to the reflection sheet, the first recessed portion of the display panel supporting member pressing the reflection sheet against the light guide plate. 
         [0166]    In accordance with a tenth mode, a television apparatus comprises: a receiver configured to receive a television broadcast; a light source configured to emit light; a reflection sheet configured to reflect the light emitted from the light source to a front side of the television apparatus; a display panel arranged relative to the reflection sheet; and a display panel supporting member supporting the display panel, the display panel supporting member being disposed on a back side of the television apparatus relative to the reflection sheet with the back side of the television apparatus being an opposite side to the front side of the television apparatus, a part of a back surface of the display panel supporting member disposed on the back side of the television apparatus relative to the reflection sheet forming a rear chassis, the display panel supporting member having a first recessed portion that is recessed toward the reflection sheet such that the first recessed portion presses an inner area of a back surface of the reflection sheet except for a vicinity of an outer peripheral portion of the back surface of the reflection sheet. 
         [0167]    In accordance with an eleventh mode, a display device comprises: a light source configured to emit light; a reflection sheet configured to reflect the light emitted from the light source to a front side of the display device; a display panel arranged relative to the reflection sheet; and a reflection sheet holding member supporting the reflection sheet by contacting with an area of the reflection sheet that corresponds to a vicinity of an outer peripheral portion of a display area of the display panel from a back side of the display device, the reflection sheet holding member being made of a plate-shaped metal member, the reflection sheet holding member having a contact portion that contacts with the reflection sheet and a drawn portion that is drawn relative to the contact portion by drawing processing to the plate-shaped metal member, the contact portion and the drawing portion defining a boundary portion therebetween, the boundary portion having a radius of curvature that is larger than a thickness of the plate-shaped metal member. 
         [0168]    In accordance with a twelfth mode, with the display device according to the eleventh mode, the radius of curvature of the boundary portion is three times or more and six times or less of the thickness of the plate-shaped metal member. 
         [0169]    In accordance with a thirteenth mode, with the display device according to the eleventh mode, the reflection sheet holding member includes a heat sink that is configured to release heat generated from the light source. 
         [0170]    In accordance with a fourteenth mode, with the display device according to the eleventh mode, the reflection sheet holding member is arranged to contact with the reflection sheet at a frame-shaped area of the reflection sheet outward of the outer peripheral portion of the display area. 
         [0171]    In accordance with a fifteenth mode, with the display device according to the fourteenth mode, the reflection sheet holding member includes a plurality of reflection sheet holding portions, the reflection sheet holding portions are arranged in a frame shape along four sides of the display area such that the reflection sheet holding portions presses four sides of the reflection sheet, respectively. 
         [0172]    In accordance with a sixteenth mode, with the display device according to the eleventh mode, at least a part of an inner edge portion of the reflection sheet holding member is spaced apart from the reflection sheet without contacting with the reflection sheet. 
         [0173]    In accordance with a seventeenth mode, the display device according to the eleventh mode further comprises a supporting member disposed on the back side of the display device relative to the reflection sheet holding member, with a part of the supporting member forming a rear chassis, the supporting member being spaced away from an area of the reflection sheet that corresponds to the display area by a predetermined distance such that the supporting member does not contacts with the area of the reflection sheet that corresponds to the display area. 
         [0174]    In accordance with an eighteenth mode, with the display device according to the seventeenth mode, the supporting member is spaced away from the area of the reflection sheet that corresponds to the display area by a distance of  1  mm or more. 
         [0175]    In accordance with a nineteenth mode, a television apparatus comprises: a receiver configured to receive a television broadcast; a display panel configured to display the television broadcast received by the receiver; a light source configured to emit light; a reflection sheet configured to reflect the light emitted from the light source to a front side of the television apparatus; and a reflection sheet holding member supporting the reflection sheet by contacting with an area of the reflection sheet that corresponds to a vicinity of an outer peripheral portion of a display area of the display panel, the reflection sheet holding member being made of a plate-shaped metal member, the reflection sheet holding member having a contact portion that contacts with the reflection sheet and a drawn portion that is drawn relative to the contact portion by drawing processing to the plate-shaped metal member, the contact portion and the drawing portion defining a boundary portion therebetween, the boundary portion having a radius of curvature that is larger than a thickness of the plate-shaped metal member. 
         [0176]    In understanding the scope of the present invention, the term “comprising” and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated features, elements, components, groups, integers, and/or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and/or steps. The foregoing also applies to words having similar meanings such as the terms, “including”, “having” and their derivatives. Also, the terms “part,” “section,” “portion,” “member” or “element” when used in the singular can have the dual meaning of a single part or a plurality of parts. 
         [0177]    While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the scope of the invention as defined in the appended claims. Furthermore, the foregoing descriptions of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.