Abstract:
A lateral electric field type liquid crystal display device having a curved display surface, comprises: a curved first substrate including a plurality of gate lines, a plurality of data lines, a pixel electrode, and a common electrode; a curved second substrate that is disposed opposite to the first substrate, the second substrate including a polarizing plate; a liquid crystal layer disposed therebetween; a sealing material bonding the first substrate and the second substrate together; and a driver that outputs a drive signal to at least the plurality of gate lines or the plurality of data lines. In the polarizing plate, at least a part of a side near the driver overlaps the sealing material or is disposed outside the sealing material in planar view.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims priority from Japanese application JP 2016-108052, filed May 31, 2016. This Japanese application is incorporated herein by reference. 
       TECHNICAL FIELD 
       [0002]    The present invention relates to a liquid crystal display device. 
       BACKGROUND 
       [0003]    Recently there is proposed a liquid crystal display device having a curved display surface (for example, Unexamined Japanese Patent Publication No. 2009-92884). In such a liquid crystal display device, a pair of substrates (a thin film transistor substrate (TFT substrate) and a color filter substrate (CF substrate)) are formed so as to be curved. 
       SUMMARY 
       [0004]    The inventors have found that luminance unevenness occurs in a vicinity of a corner of a display screen in a lateral electric field type liquid crystal display device typified by an IPS (In-Place-Switching) type liquid crystal display device among liquid crystal display devices having the curved display surfaces. Specifically, in the case where the TFT substrate and the CF substrate are formed in a curved shape such that a rear surface side becomes convex, a tensile (extension) stress acts on a glass substrate constituting the TFT substrate while a compressive stress acts on a glass substrate constituting the CF substrate. A problem does not occur if curvatures of the two glass substrates are ideal (constant), but actually a deviation occurs with respect to the ideal (constant) curvature by reaction to bending. The occurrence of such deviation generates a phase difference between the glass substrates in a direction oblique to liquid crystal molecules. In the lateral electric field type, because the liquid crystal molecules are disposed substantially parallel to the TFT substrate and the CF substrate, oblique light (polarized light) further rotates by an influence of the phase difference. The rotation of the polarized light is not canceled by a polarizing plate, and light leakage occurs. As a result, a white defect is easily visually recognized when a black image is displayed. Because the light leakage easily occurs in the vicinity of the corner where the deviation from the ideal curvature increases, the luminance unevenness easily occurs in the vicinity of the corner of the display screen. 
         [0005]    On the other hand, in the conventional liquid crystal display device, from the viewpoint of material cost reduction or electrostatic discharge, the polarizing plate disposed on the CF substrate is generally disposed inside a sealing material, which is used to bond the TFT substrate and the CF substrate together, in planar view. For example, as a configuration for removing static electricity charged on the CF substrate in the lateral electric field type liquid crystal display device, Unexamined Japanese Patent Publication No. H9-105918 discloses a configuration in which a conductive layer is formed on a surface on an opposite side to the liquid crystal layer of the CF substrate, a ground terminal is formed in the TFT substrate, and the conductive layer and the ground terminal are electrically connected using a cable or the like. In the above configuration, in planar view, the polarizing plate disposed on the CF substrate is disposed inside the sealing material, the conductive layer is exposed in surroundings of the polarizing plate, and the cable is connected to the exposed conductive layer. 
         [0006]    In the lateral electric field type liquid crystal display device having the curved display surface, when the polarizing plate disposed on the CF substrate is disposed inside the sealing material, a step (clearance) is generated in a peripheral portion of the CF substrate according to a thickness of the polarizing plate, and the peripheral portion of the CF substrate is hardly held by a cover glass, a film, or the like, which is disposed on the display surface side of the CF substrate. Therefore, a distortion increases in the vicinity of the corner in the display panel, and the luminance unevenness is easily visually recognized. 
         [0007]    The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to reduce luminance unevenness occurring in a vicinity of a corner of a display screen in a lateral electric field type liquid crystal display device having a curved display surface. 
         [0008]    To solve the above problem, a liquid crystal display device being a lateral electric field type having a curved display surface according to a present disclosure comprises: a first substrate including a plurality of gate lines, a plurality of data lines, a pixel electrode, and a common electrode; a second substrate that is disposed opposite to the first substrate, the second substrate including a polarizing plate; a liquid crystal layer disposed between the first substrate and the second substrate; a sealing material surrounding the liquid crystal layer and used to bond the first substrate and the second substrate together; and a driver that outputs a drive signal to at least the plurality of gate lines or the plurality of data lines, wherein in the polarizing plate, at least a part of a side near the driver overlaps the sealing material or is disposed outside the sealing material in planar view. 
         [0009]    In the liquid crystal display device according to the present disclosure, the first substrate may be curved such that a portion of the first substrate located at a center in a first direction protrudes from portions of the first substrate located at both ends in the first direction toward a display surface side or a rear surface side, the second substrate may be curved along the first substrate, the first substrate may include a driver mounting region protruding in the first direction from the second substrate in planar view, and the driver may be mounted in the driver mounting region. 
         [0010]    In the liquid crystal display device according to the present disclosure, a ground terminal may be disposed in the driver mounting region, the second substrate further may include a conductive layer disposed in a position closer to the first substrate than the polarizing plate, the liquid crystal display device further may include a connection member that electrically connects the ground terminal to the conductive layer, and a notch may be formed in the side near the driver in the polarizing plate such that a connection region to the connection member in the conductive layer is exposed. 
         [0011]    In the liquid crystal display device according to the present disclosure, in planar view, one end of the connection member may overlap the ground terminal, and another end of the connection member may overlap the connection region exposed from the notch formed in the polarizing plate. 
         [0012]    In the liquid crystal display device according to the present disclosure, the polarizing plate may include a first side which is provided with the notch and located near the driver, a second side located opposite to the first side, a third side connected to one end of the first side and one end of the second side, and a fourth side connected to another end of the first side and another end of the second side, and in planar view, a portion connected to the notch in the first side, the second side, the third side, and the fourth side may overlap the sealing material, or are located outside the sealing material. 
         [0013]    In the liquid crystal display device according to the present disclosure, in the first side, the notch may be formed in a region closer to a central position between both ends connected to the third side or the fourth side than to both the ends. 
         [0014]    In the liquid crystal display device according to the present disclosure, a corner of the notch may be formed into an arc shape. 
         [0015]    The liquid crystal display device according to the present disclosure may further comprise a front plate disposed on a display surface side of the second substrate, wherein the front plate may be fixedly bonded to the polarizing plate with an adhesive layer interposed therebetween, and the front plate and the adhesive layer may cover a whole of the polarizing plate in planar view. 
         [0016]    Owing to the liquid crystal display device according to the present disclosure, a lateral electric field type liquid crystal display device with a curved display surface reducing luminance unevenness occurring in a vicinity of a corner of a display screen, can be obtained. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0017]      FIG. 1  is a plan view and a side view illustrating a schematic configuration of the liquid crystal display device according to an exemplary embodiment; 
           [0018]      FIG. 2  is an equivalent circuit diagram illustrating a schematic configuration of display region in the liquid crystal display device according to an exemplary embodiment; 
           [0019]      FIG. 3  is a plan view illustrating a specific configuration of pixels in the liquid crystal display device; 
           [0020]      FIG. 4  is a sectional view taken along line C-C in  FIG. 3 ; 
           [0021]      FIG. 5  is a sectional view taken along line D-D in  FIG. 3 ; 
           [0022]      FIG. 6  is a plan view illustrating a specific configuration of polarizing plate included in a CF substrate according to an exemplary embodiment; 
           [0023]      FIG. 7  is a sectional view taken along line A-A in  FIG. 1 ; 
           [0024]      FIG. 8  is a sectional view taken along line B-B in  FIG. 1 ; 
           [0025]      FIG. 9  is a plan view illustrating another configuration of polarizing plate included in a CF substrate according to an exemplary embodiment; 
           [0026]      FIG. 10  is a plan view illustrating another configuration of polarizing plate included in a CF substrate according to an exemplary embodiment; 
           [0027]      FIG. 11  is a sectional view taken along line A-A, illustrating another configuration of the liquid crystal display device according to an exemplary embodiment; 
           [0028]      FIG. 12  is a sectional view taken along line B-B, illustrating another configuration of the liquid crystal display device according to an exemplary embodiment; and 
           [0029]      FIG. 13  is a plan view and a side view illustrating another configuration of a liquid crystal display device according to an exemplary embodiment. 
       
    
    
     DETAILED DESCRIPTION 
       [0030]    Hereinafter, an exemplary embodiment of the present disclosure will be described with reference to the drawings.  FIG. 1  is a plan view and a side view illustrating a schematic configuration of liquid crystal display device  1  according to the exemplary embodiment. Liquid crystal display device  1  includes display panel  10 , a driver (for example, source driver IC  20  and gate driver IC  30 ), a control circuit (not illustrated), and a backlight device (not illustrated). Display panel  10  includes thin film transistor substrate  100  (hereinafter, referred to as a TFT substrate) as a first substrate, color filter substrate  200  (hereinafter, referred to as a CF substrate) as a second substrate, and liquid crystal layer  300  disposed between TFT substrate  100  and CF substrate  200 . TFT substrate  100  and CF substrate  200  are fixedly bonded together using sealing material  60  that is formed into a frame shape at a position corresponding to a peripheral portion of CF substrate  200 . Liquid crystal layer  300  is disposed while being surrounded by TFT substrate  100 , CF substrate  200 , and sealing material  60 , and liquid crystal included in liquid crystal layer  300  is sealed inside sealing material  60 . 
         [0031]    As illustrated in  FIG. 1 , TFT substrate  100  and CF substrate  200  are bent so as to be curved in a row direction that is a first direction. That is, TFT substrate  100  and CF substrate  200  are bent such that a central portion protrudes from both end portions in the first direction toward a display surface side or a rear surface side. In other words, TFT substrate  100  is bent such that a portion of TFT substrate  100  located at a center in the first direction protrudes from portions of TFT substrate  100  located at both ends in the first direction toward a display surface side or a rear surface side, and CF substrate  200  is curved along TFT substrate  100 . In the exemplary embodiment, TFT substrate  100  and CF substrate  200  are bent such that the central portion protrudes more to the rear surface side than both the end portions in the first direction. 
         [0032]    When display panel  10  is divided into regions, display panel  10  includes display region  10   a  where the image is displayed and non-display region  10   b  (frame region) around display region  10   a . In TFT substrate  100 , a region corresponding to non-display region  10   b  includes driver mounting region  100   b  where source driver IC  20  and gate driver IC  30 , which are the drivers, are mounted. In liquid crystal display device  1  according to the exemplary embodiment, driver mounting region  100   b  is disposed on one side (in  FIG. 1 , a left side) of display panel  10  in order to achieve a narrowed frame. In other words, driver mounting region  100   b  protrudes from CF substrate  200  in the row direction (first direction) in planar view. TFT substrate  100  has an area larger than CF substrate  200  by driver mounting region  100   b  in a planar view. In driver mounting region  100   b , source driver IC  20  and gate driver IC  30  are directly mounted on a glass substrate constituting TFT substrate  100 . That is,  FIG. 1  illustrates a COG (Chip On Glass) type liquid crystal display device. source driver IC  20  and gate driver IC  30  are disposed in a line (in  FIG. 1 , a column direction) along one side of display panel  10 . In the exemplary embodiment, two source driver ICs  20  and two gate driver ICs  30  are illustrated. However, there is no limitation to the number of source driver ICs  20  or gate driver ICs  30 . The liquid crystal display device according to the exemplary embodiment is not limited to the COG type. For example, a COF (Chip On Film) type or TCP (Tape Carrier Package) type liquid crystal display device may be used. 
         [0033]    Ground terminal  107  is disposed in driver mounting region  100   b  of TFT substrate  100 . Ground terminal  107  is disposed in a vicinity of a center in the column direction of driver mounting region  100   b . For example, ground terminal  107  is disposed between two source driver ICs  20  in  FIG. 1 . There is no limitation to the number of ground terminals  107 . 
         [0034]    Polarizing plate  106  is formed on a rear surface side of TFT substrate  100 , and the backlight device is further disposed on the rear surface side of polarizing plate  106 . Conductive layer  206  is formed on the display surface side of CF substrate  200 , and polarizing plate  207  is formed on the display surface side of conductive layer  206 . For example, conductive layer  206  is made of a transparent conductive material ITO (Indium Tin Oxide). Conductive layer  206  is formed in a solid state over a whole surface of CF substrate  200 . Polarizing plate  207  is substantially formed in a solid state over a whole surface of conductive layer  206 . Notch  208  is formed in one side (in  FIG. 1 , a left side) of polarizing plate  207 . Therefore, conductive layer  206  is exposed from the region of notch  208  when display panel  10  is planarly viewed (see  FIG. 1 ). Connection member  400  is also formed in display panel  10  in order to electrically connect a part (exposed portion) of conductive layer  206  and ground terminal  107  to each other, the part of conductive layer  206  being exposed from polarizing plate  207 , and ground terminal  107  being disposed on TFT substrate  100 . For example, connection member  400  is formed by applying a conductive material so as to cover the part of ground terminal  107  and the exposed portion of conductive layer  206 . Connection member  400  may be a conductive tape or a conductive wiring. Specific configurations of polarizing plate  207  and notch  208  will be described later. 
         [0035]    In  FIG. 1 , an inner periphery of sealing material  60  is illustrated by a dotted line. In planar view, a position in an outer periphery of sealing material  60  coincides with a position in a peripheral portion of CF substrate  200 , and a position in the inner periphery of sealing material  60  is positioned outside display region  10   a.    
         [0036]      FIG. 2  is an equivalent circuit diagram illustrating a schematic configuration of display region  10   a  in display panel  10 . A plurality of data lines  11  extending in the first direction (for example, the row direction) and a plurality of gate lines  12  extending in the second direction (for example, the column direction) are provided in display panel  10 . Thin film transistor (hereinafter, referred to as a TFT)  13  is provided in an intersection of each data line  11  and each gate line  12 . Each data line  11  is electrically connected to corresponding source driver IC  20  (see  FIG. 1 ), and each gate line  12  is electrically connected to corresponding gate driver IC  30  (see  FIG. 1 ). 
         [0037]    In display panel  10 , a plurality of pixels  14  are arranged in a matrix form (in the row and column directions) in correspondence with intersections of data lines  11  and gate lines  12 . A plurality of pixel electrodes  15  each of which is disposed in a pixel  14  and common electrode  16  shared by the plurality of pixels  14  are provided in TFT substrate  100 . 
         [0038]    A data signal (data voltage) is supplied to each data line  11  from corresponding source driver IC  20 . A gate signal (gate-on voltage and gate-off voltage) is supplied to each gate line  12  from corresponding gate driver IC  30 . Common voltage Vcom is supplied from a common driver (not illustrated) to common electrode  16  through common wiring  17 . When an on voltage (gate-on voltage) of the gate signal is supplied to gate line  12 , TFT  13  connected to gate line  12  is turned on to supply the data voltage to pixel electrode  15  through data line  11  connected to TFT  13 . An electric field is generated by a difference between the data voltage supplied to pixel electrode  15  and the common voltage Vcom supplied to common electrode  16 . The liquid crystal is driven by the electric field to control transmittance of the light transmitted from the backlight, thereby displaying the image. Desired data voltages are supplied to data lines  11  connected to pixel electrodes  15  of pixels  14 , which are formed by striped color filters to correspond to red, green, and blue, thereby performing color display. 
         [0039]      FIG. 3  is a plan view illustrating a specific configuration of pixel  14  of display panel  10 .  FIG. 4  is a sectional view taken along line C-C′ in  FIG. 3 , and  FIG. 5  is a sectional view taken along line D-D′ in  FIG. 3 . A specific configuration of pixel  14  will be described below with reference to  FIGS. 3 to 5 . 
         [0040]    Referring to  FIG. 3 , a region partitioned by two adjacent data lines  11  and two adjacent gate lines  12  corresponds to one pixel  14  when display panel  10  is planarly viewed. TFT  13  is provided in each pixel  14 . TFT  13  includes semiconductor layer  21  formed on insulator  102  (see  FIGS. 4 and 5 ) and drain electrode  22  and source electrode  23 , which are formed on semiconductor layer  21 . Drain electrode  22  is electrically connected to data line  11 , and source electrode  23  is electrically connected to pixel electrode  15  via through-hole  24 . 
         [0041]    Pixel electrode  15  made of a transparent conductive material such as ITO is formed in each pixel  14 . Pixel electrode  15  includes a plurality of openings (slit), and is formed into a stripe shape. There is no limitation to a shape of an opening. In each pixel  14 , one common electrode  16  made of a transparent conductive material such as ITO is formed over whole display region  10   a . An opening (corresponding to a dotted-line box in  FIG. 3 ) is formed to electrically connect pixel electrode  15  and source electrode  23  in a region of common electrode  16 , the region overlapping through-hole  24  and source electrode  23  of TFT  13 . 
         [0042]    As illustrated in  FIGS. 4 and 5 , display panel  10  includes TFT substrate  100 , CF substrate  200 , and liquid crystal layer  300  sandwiched between TFT substrate  100  and CF substrate  200 . 
         [0043]    In TFT substrate  100 , gate line  12  (see  FIG. 4 ) is formed on glass substrate  101 , and insulator  102  is formed so as to cover gate line  12 . Data line  11  (see  FIG. 5 ) is formed on insulator  102 , and insulator  103  is formed so as to cover data line  11 . Common electrode  16  is formed on insulator  103 , and insulator  104  is formed so as to cover common electrode  16 . Pixel electrode  15  is formed on insulator  104 , and alignment film  105  is formed so as to cover pixel electrode  15 . In glass substrate  101 , polarizing plate  106  is provided on a surface (rear surface) on the backlight device side (an opposite side to liquid crystal layer  300 ). 
         [0044]    In CF substrate  200 , black matrix  203  and colored portion  202  (for example, a red portion, a green portion, and a blue portion) are formed on glass substrate  201 , and overcoat layer  204  is formed so as to cover black matrix  203  and colored portion  202 . Alignment film  205  is formed on overcoat layer  204 . In glass substrate  201 , conductive layer  206  is provided on a surface (front surface) on the display surface side (the opposite side to liquid crystal layer  300 ). In conductive layer  206 , polarizing plate  207  is provided on a surface (front surface) on the display surface side (the opposite side to liquid crystal layer  300 ). 
         [0045]    Liquid crystal  301  is sealed in liquid crystal layer  300 . Liquid crystal  301  may be a negative liquid crystal having a negative dielectric anisotropy or a positive liquid crystal having a positive dielectric anisotropy. Alignment film  105 ,  205  may be an alignment film subjected to a rubbing alignment process or a light alignment film subjected to a light alignment process. 
         [0046]    As described above, liquid crystal display device  1  has a configuration of the lateral electric field type in which an electric field substantially parallel to TFT substrate  100  and CF substrate  200  is applied to liquid crystal layer  300 . For example, liquid crystal display device  1  has a configuration of an IPS (In-Plane Switching) type. 
         [0047]    In lateral electric field type liquid crystal display device  1  according to the exemplary embodiment having the curved display surface, polarizing plate  207  disposed on CF substrate  200  has a characteristic configuration, which allows the reduction of the luminance unevenness occurring in the vicinity of the corner of the display screen. Specific configurations of polarizing plate  207  and notch  208  formed in polarizing plate  207  will be described below. 
         [0048]      FIG. 6  is a plan view illustrating a specific configuration of polarizing plate  207 . Polarizing plate  207  includes first side (edge)  207   a , second side  207   b , third side  207   c , and fourth side  207   d . First side  207   a  and second side  207   b  extend in the column direction, and are disposed opposite to each other in the row direction. Third side  207   c  and fourth side  207   d  extend in the row direction, and are disposed opposite to each other in the column direction. Third side  207   c  is connected to one end of each of first side  207   a  and second side  207   b , and fourth side  207   d  is connected to the other end of each of first side  207   a  and second side  207   b . Notch  208  is formed in a side (in this case, first side  207   a ) near a driver (in this case, source driver IC  20  and gate driver IC  30 ) in the sides (edges) of polarizing plate  207 . For example, notch  208  is formed into a U-shape. Notch  208  is formed in the vicinity of the center of first side  207   a  in the column direction. More specifically, in first side  207   a , notch  208  is formed in a region closer to central position MO between ends E 1 , E 2  than to ends E 1 , E 2  connected to third side  207   c  or fourth side  207   d . Length in the row and column directions of notch  208  is set to an extent in which conductive layer  206  (see  FIG. 1 ) disposed below polarizing plate  207  can be exposed, and an extent in which connection member  400  (see  FIG. 1 ) can be disposed in the exposed portion of conductive layer  206 . 
         [0049]      FIG. 7  is a sectional view taken along line A-A′ in  FIG. 1 . As illustrated in  FIG. 7 , in the portion in which notch  208  is formed, a length in the row direction of polarizing plate  207  is larger than a length in the row direction of display region  10   a . In planar view, an end portion (left end portion E 3  in  FIG. 7 ) of polarizing plate  207  in the portion in which notch  208  is formed is located outside display region  10   a  and inside the inner periphery of sealing material  60 . However, the present disclosure is not limited to such an example. Alternatively, the end portion (left end portion E 3  in  FIG. 7 ) of polarizing plate  207  in the portion in which notch  208  is formed may be located outside the inner periphery of sealing material  60  in planar view. In planar view, an end portion (right end portion E 4  in  FIG. 7 ) (second side  207   b ) of polarizing plate  207  on the opposite side to the portion in which notch  208  is formed is located outside display region  10   a , and coincides with the outer periphery of sealing material  60 . 
         [0050]      FIG. 8  is a sectional view taken on line B-B′ in  FIG. 1 . As illustrated in  FIG. 8 , the length in the row direction of polarizing plate  207  is larger than a length in the row direction of display region  10   a . In planar view, the end portions (right and left end portions in  FIG. 8 ) (first side  207   a  and second side  207   b ) of polarizing plate  207  in a portion in which notch  208  is not formed are located outside display region  10   a , and coincides with the outer periphery of sealing material  60 . In planar view, third side  207   c  and fourth side  207   d  of polarizing plate  207  are located outside display region  10   a , and coincides with the outer periphery of sealing material  60 . Thus, in polarizing plate  207 , the peripheral portion in which notch  208  is not formed is disposed so as to overlap sealing material  60  in planar view. The portion of polarizing plate  207  where notch  208  is formed may overlap sealing material  60 . 
         [0051]    At this point, in the conventional configuration, in order to ensure a region where the conductive layer and the ground terminal are connected to each other, a side closer to the driver in the polarizing plate provided in the CF substrate tends to be disposed at a position near the display region compared with a side farther away from the driver. On the other hand, because the vicinity of the end portion near the driver is hardly held in the CF substrate, the distortion is more easily generated in the vicinity of the corner near the driver in the display panel, and the luminance unevenness becomes conspicuous in the vicinity of the corner near the driver in the display screen. On the other hand, liquid crystal display device  1  according to the exemplary embodiment has the configuration in which, in polarizing plate  207 , at least a part (the portion in which notch  208  is not formed) of the side (first side  207   a ) near the driver is disposed not inside sealing material  60 , but to overlap sealing material  60  in planar view. Therefore, the distortion is reduced at least in the vicinity of the corner near the driver in display panel  10 , so that the luminance unevenness occurring in the vicinity of the corner in the display screen can be reduced compared with the conventional configuration. As described above, in polarizing plate  207  of liquid crystal display device  1 , in addition to a part of first side  207   a  near the driver, preferably, second side  207   b , third side  207   c , and fourth side  207   d  are disposed so as to overlap sealing material  60  in planar view. Therefore, the distortion is reduced in the vicinity of each corner in display panel  10 , so that the luminance unevenness occurring in the vicinity of each corner in the display screen can be reduced. 
         [0052]    In polarizing plate  207  of  FIGS. 1 and 6 , notch  208  is formed into the U-shape. However, the shape of notch  208  is not limited to the U-shape. For example, as illustrated in  FIG. 9 , the corner of notch  208  in  FIG. 6  may be formed into an arc shape. In the configuration of  FIG. 9 , the stress is hardly concentrated on the corner of notch  208  when polarizing plate  207  is curved, so that deformation or damage can be reduced around notch  208 . Therefore, the luminance unevenness occurring around notch  208  can be reduced. The corner of notch  208  may be formed into a polygonal shape. There is no limitation to a size of the arc portion of notch  208  in  FIG. 9 . For example, the arc portion of notch  208  may be formed so as to increase in the column direction as illustrated in  FIG. 10 . 
         [0053]    In the exemplary embodiment, TFT substrate  100  as the first substrate includes driver mounting region  100   b  protruding in the first direction (row direction) from CF substrate  200  as the second substrate in planar view, and the driver (source driver IC  20  and gate driver IC  30 ) is mounted on driver mounting region  100   b . According to the exemplary embodiment, the driver is disposed in driver mounting region  100   b  that is hardly influenced by the deformation of the bending, so that a risk of disconnecting the wiring connected to the driver can be reduced while the driver is stably mounted. 
         [0054]    In the exemplary embodiment, in first side  207   a , notch  208  is formed in a region closer to central position MO between ends E 1 , E 2  than to ends E 1 , E 2  connected to third side  207   c  or fourth side  207   d . In this case, notch  208  can be disposed in a region other than the corner of the display screen, the luminance unevenness occurring in the vicinity of the corner is hardly worsened by the formation of notch  208 . 
         [0055]    Liquid crystal display device  1  according to the present disclosure is not limited to the above configuration. For example, as illustrated in  FIGS. 11 and 12 , cover glass  210  as the front plate may be provided on the display surface side in liquid crystal display device  1 .  FIG. 11  illustrates a cross-section identical to that taken along line A-A′ in  FIG. 1 , and  FIG. 12  illustrates a cross-section identical to that taken along line B-B′ in  FIG. 1 . Cover glass  210  is formed into the curved shape, and bonded to CF substrate  200  by adhesive layer  209 . For example, adhesive layer  209  is made of an ultraviolet curable resin (OCR). Specifically, adhesive layer  209  that is formed so as to cover whole polarizing plate  207  is disposed on polarizing plate  207 , and cover glass  210  that is formed so as to cover whole polarizing plate  207  is disposed on adhesive layer  209 . As illustrated in  FIG. 11 , adhesive layer  209  is applied so as not to be disposed on notch  208 . However, there is no problem even if adhesive layer  209  is applied onto notch  208 . When adhesive layer  209  is irradiated with ultraviolet light, cover glass  210  is fixedly bonded to polarizing plate  207 . Therefore, curved display panel  10  is held by cover glass  210 . In the configuration of  FIG. 11 , polarizing plate  207  is disposed up to the peripheral portion of CF substrate  200 , and cover glass  210  is disposed so as to cover the peripheral portion of polarizing plate  207 , so that the peripheral portion of display panel  10  can also be held by cover glass  210 . Therefore, distortion is reduced in the vicinity of the corner in display panel  10 , so that the luminance unevenness occurring in the vicinity of the corner in the display screen can be reduced. In liquid crystal display device  1 , for example, a heat shrinkable film having a property of shrinking in one axial direction by heating may be used instead of adhesive layer  209  and cover glass  210 . 
         [0056]    In the above configuration, sealing material  60  is disposed such that the outer periphery of sealing material  60  coincides with the peripheral portion of CF substrate  200  in planar view. Alternatively, as illustrated in  FIG. 13 , in the liquid crystal display device according to the present disclosure, sealing material  60  may be disposed such that the outer periphery of sealing material  60  is located inside the peripheral portion of CF substrate  200 . In the configuration of  FIG. 13 , polarizing plate  207  is disposed such that the portion in which notch  208  is not formed in the peripheral portion of polarizing plate  207  is located outside sealing material  60  (beyond sealing material  60 ) in planar view. In the configuration of  FIG. 13 , in polarizing plate  207 , at least a portion near the driver needs to be located outside sealing material  60 . 
         [0057]    In the above configuration, both source driver IC  20  and gate driver IC  30  are disposed in one side surface (in  FIG. 1 , the left side surface). However, the liquid crystal display device according to the present disclosure is not limited thereto. Alternatively, for example, source driver IC  20  may be disposed in the left side surface while gate driver IC  30  is disposed in the upper side surface. In this case, ground terminal  107  and notch  208  of polarizing plate  207  may be disposed on the left side surface or the upper side surface, or ground terminal  107  and notch  208  may be disposed on both the left side surface and the upper side surface. 
         [0058]    Liquid crystal display device  1  having the above configuration is bent so as to be curved in the row direction (see  FIG. 1 ). Alternatively, the liquid crystal display device according to the present disclosure may be bent so as to be curved in the column direction, and there is no limitation to the bending direction. Liquid crystal display device  1  having the above configuration is bent such that the rear surface side becomes convex (see  FIG. 1 ). Alternatively, the liquid crystal display device according to the present disclosure may be bent such that the display surface side becomes convex, and there is no limitation to the convex direction. 
         [0059]    In the above, the specific embodiments of the present application have been described, but the present application is not limited to the above-mentioned embodiments, and various modifications may be made as appropriate without departing from the spirit of the present application.