Patent Publication Number: US-9839148-B2

Title: Display device wall mounting apparatus

Description:
This application is a Continuation Application of prior U.S. patent application Ser. No. 13/934,874 filed Jul. 3, 2013, which claims priority under 35 U.S.C. §119 to Korean Application No. 10-2012-0075875, filed on Jul. 12, 2012, whose entire disclosures are hereby incorporated by reference. 
    
    
     BACKGROUND OF THE DISCLOSURE 
     Field of the Disclosure 
     The present invention relates to a wall mount type display device, more particularly, to a wall mount type display device including a mount fixer and a mount plate to ease a wall mounting process thereof. 
     Discussion of the Related Art 
     Recently, various flat panel type display devices capable of reducing the weight and volume that is disadvantages of cathode ray tube type display devices are emerged as main display devices. Such a display device can be classified into Liquid Crystal Displays (LCD), Field Emission Display (FED), Plasma Display Panels (PDP) and Organic Electro Luminescence Diode (OELD). 
     The flat panel display device is coupled to a case. In the case are mounted a power supply unit configured to provide a power necessary to drive electronic devices and a circuit device configured to process information and electronic components configured to drive the flat panel display. 
     The display device can be categorized into a stand type mounted on a shelf or floor and a wall mount type mounted to a wall. A mount device used in fixedly mounting the display device to an installation surface is coupled to a back surface of the case and the mount device supports the display device. A conventional mount device has a complex structure and complex installation method. Also, the conventional mount device occupies quite an installation space and it has a low spatial utilization. 
     Once it is fixed, the wall mount type display device cannot be moved and it is very important to maintain level in the wall mount type display device but it is not easy to maintain the level. In addition, an inclinometer provided in the mount device to maintain the level will be used once. The conventional mount device having the inclinometer has a disadvantage of resource waste. 
     SUMMARY OF THE DISCLOSURE 
     To overcome the disadvantages, an object of embodiments herewith is to provide a display device including a mount device that is able to maintain level by changing an installation angle after installing the display device. 
     Additional advantages, objects, and features of the disclosure will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. 
     To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a display device includes a display module configured to display a screen; a case configured to mount the display module therein; a mount plate coupled to a back surface of the case, with a lower portion comprising an arch-shaped handle having a predetermined curvature; and a mount fixer fixed to a wall, the mount fixer comprising a seating portion having the same curvature as the handle. 
     The length of the mount fixer may be smaller than the length of the handle. 
     The mount fixer may include a rear bracket coupled to the wall; a front bracket coupled to a front surface of the rear bracket, with a lower end coupled to the rear bracket and an upper end spaced apart a predetermined distance from the rear bracket; and the seating portion formed in the gap between the front bracket and the rear bracket. 
     The mount fixer may further include a top bracket slidably coupled to a top end of the rear bracket, the top bracket configured to slide toward the front bracket to cover an upper portion of the seating portion. 
     The mount fixer may further include a frictional member provided in a front or rear portion of the seating portion to prevent the handle from slipping. 
     A middle or lower portion of the frictional member may be projected more than an upper portion. 
     The case may further include a control box arranged on a back surface of the case, wherein the mount plate is coupled to an upper end of the control box. 
     The distance between the seating portion and the wall may be the same as the thickness of the control box from a position coupled to the mount plate to a back surface. 
     The display device may further include a rubber provided on a back surface of the control box, the rubber configured to contact with the wall when the mount fixer and the mount plate are coupled to each other. 
     The display module may include an organic light emitting diode (OLED). 
     The display device according to the embodiments an installation angle can be changed to make the display device leveled even after the mount device is installed. Accordingly, the difficulty in leveling the display device when it is mounted to the wall can be relieved. 
     Furthermore, the structure of the mount device can be simple and the number of the parts can be reduced. Accordingly, the installation process can be simple and the time taken to install the display device to the wall can be reduced. 
     Additional advantages, objects, and features of the disclosure will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front diagram illustrating a display device according to one embodiment of the present invention; 
         FIG. 2  is a rear diagram illustrating the display device according to one embodiment of the present invention; 
         FIG. 3  is a side diagram illustrating the display device according to one embodiment of the present invention; 
         FIGS. 4 and 5  are diagrams illustrating a coupling process between a mount fixer and a mount plate provided in the display device according to one embodiment of the present invention; 
         FIG. 6  is an exploded perspective diagram illustrating a mount fixer of the display device according to one embodiment of the present invention; and 
         FIG. 7  is a perspective diagram illustrating a coupled state between the mount fixer and the mount plate of the display device according to one embodiment of the present invention. 
     
    
    
     DESCRIPTION OF SPECIFIC EMBODIMENTS 
     It will be understood that when an element is referred to as being ‘on’ or ‘under’ another element, it can be directly on/under the element, and one or more intervening elements may also be present. When an element is referred to as being ‘on’ or ‘under’, ‘under the element’ as well as ‘on the element’ can be included based on the element. 
       FIG. 1  is a front diagram illustrating a display device  10  according to one embodiment of the present invention.  FIG. 2  is a rear diagram illustrating the display device  10  according to one embodiment of the present invention. The display device  10  according to the present invention includes a display module, case  30 , a mount plate  50  and a mount fixer  60 . 
     The display module  20  has pixels aligned in such a matrix type as Liquid Crystal Display (LCD), Plasma Display Panel (PDP), Field Emission Display (FED) and Organic Electro-Luminescence Diode (OLED). 
     Especially, Organic Electro-luminescence Diode (OLED) is a self luminescent device that makes a phosphor luminescent by re-combining an electron with a hole. Typically, in the Organic Electro-luminescent Diode may be provided an electron injection layer disposed between a cathode and an anode, an electron transfer layer, a light-emitting layer, a hole transfer layer and a hole injection layer. 
     When a predetermined voltage is applied between a cathode and an anode of the Organic Electro-luminescence Diode (OELD), electrons generated in the anode are transferred to the light emitting layer via the electron injection layer and the electron transfer layer and holes generated in the cathode and anode are transferred to the light emitting layer via the hole injection layer and the hole transfer layer. After that, the electron and the hole transferred from the electron transfer layer and the hole transfer layer, respectively can be recombined with each other and lights are emitted in the light emitting layer. 
     The OELD can be driven in low voltages and reduce power consumption. Also, the OELD have other advantages of self-luminescence, a wide viewing angle, a rapid response speed and a high contrast. Accordingly, it is expected that the OELD will be the next generation display device. 
     Especially, the OLED is a thin film type and it can reduce the weight such that the force supported by the mount device may be relatively small enough to make the structure of the mount device simple. 
     The case  30  may include a front case  30  for covering a front side of the display device  10  and a rear case  30  for covering a back side of the display device  10 . Recently have been used a display module  20  having a size of bezel that is approximately zero and such a display module  20  includes only a middle case for covering a lateral side of the display device and a rear case for covering a back side of the display device. According to one embodiment, the display device is coupled to at least one of the front and rear cases to cover the display module  20 . 
     Electronic components may be arranged in the case  30 . The rear case may be provided in close contact with the display module  20  and an auxiliary control box  40  may be provided. In the control box  40  may be mounted a power supply unit provided to drive the display device  10  and a controller configured to convert an electrical signal input from the outside into an audio or video signal to output the converted audio or image signal to the display device  10 . 
     When the auxiliary control box  40  is provided, it is not necessary to make the case thick and it is possible to make an edge portion of the display module  20  thin, such that the display device  10  can be made thin. 
     The mount device is configured to fixedly mount the display device  10  to a wall. Such the mount device includes a mount plate  50  coupled to a back surface of the display device  10  and a mount fixer  60  fixed to the wall. 
     The mount plate  50  is coupled to a back surface of the case  30  and it includes a handle  51  formed in an arch shape having a lower portion with a predetermined curvature. The handle  51  is coupled to the mount fixer  60  fixed to the wall. The display device  10  may be fixedly mounted to the wall, as a lower surface of the handle  51  and an upper surface of a seating portion  63  provided in the mount fixer  60 . 
     The mount plate  50  has to support the weight of the display device  10  and it may be formed of a special material. Accordingly, examples of such a special material include steel, carbon reinforced fiber and so on. The handle  51  is predeterminedly thick enough not to be deformed by the weight of the display device  10 , when supporting the weight of the display device  10 . In case of the OELD  10  mentioned above, the weight is relatively small and the handle  51  can be thinner. 
     As shown in  FIG. 3 , the handle  51  of the mount plate  50  is spaced apart a predetermined distance from the case  30 . That is because a spaced gap has to be formed to hang the mount plate  50  on the mount fixer  60 . Accordingly, the mount plate  50  may be coupled to the case  30  via a lower surface of the handle  51 . At this time, the handle  51  may be spaced apart from the case  30 . 
     More specifically, as shown in  FIGS. 2 and 3 , a lower end of the mount plate  50  is coupled to an upper end of the control box  40  arranged in the back surface of the case  30 , to fix the mount plate  50  to the case  30 . 
     The mount fixer  60  is fixed to the wall and it has a seating portion  63  having a predetermined curvature that is identical to the curvature of the handle  51 . The seating portion  63  of the mount fixer  60  has the same curvature as the handle  51  of the mount plate  50 , such that an angle of the display device  10  can be changed in a predetermined range even after the mount fixer  60  is fixed. 
     As shown in  FIG. 4 , the mount fixer  60  is mounted to the wall, with maintaining level, and a center (a) of the mount plate  50  is seated in a center (b) of the mount fixer  60  correspondingly. After that, the display device  10  may be leveled out. 
     However, in case the mount fixer  60  is mounted to the wall inclinedly and a center of the seating portion  63  provided in the mount fixer  60  is fitted to a center of the handle  51  provided in the mount plate  50 . After that, the display device  10  will be mounted to the wall inclinedly. 
     According to the present invention, the upper surface of the seating portion  63  has the same curvature as the lower surface of the handle  51 . Even when the mount fixer the seating portion  63  is fitted to the handle  51  as shown in  FIG. 5 , the upper surface of the seating portion  63  is in close contact with the lower surface of the handle  51  to fix the display device  10  to the wall stably. 
     Even after the handle  51  is insertedly fitted to the seating portion  63  in case of using the mount fixer  60  and the mount plate  50  mentioned above, the display device  10  can be tilted rightward and leftward to be leveled. In other words, as shown in  FIGS. 4 and 5 , the handle  51  is longer than the mount fixer  60  to make the display device  10  tilted rightward and leftward. 
     As shown in  FIG. 6 , the mount fixer  60  includes a rear bracket  61 , a front bracket  62 , the seating portion  63 , a top bracket  66  and a frictional member  64 . 
     The rear bracket  61  is coupled to the wall and a hole is formed in the rear bracket  61  to pass a screw there through as shown in the drawing. Accordingly, the mount fixer  60  may be coupled to the wall by passing the screw through the hole. The mount fixer  60  has at least two portions where screws are fastened. In case one screw is fastened to fix the mount fixer, the mount fixer  60  might rotate. 
     The front bracket  62  is coupled to a lower end of a front surface composing the rear bracket  61  and an upper end of the front bracket is spaced apart from the rear bracket. The seating portion  63  is formed in a gap between the front bracket  62  and the rear bracket  61  and the handle  51  of the mount plate  50  is insertedly seated in the seating portion  63  to couple the mount plate  50  to the mount fixer  60 . 
     The front bracket  62  and the rear bracket  61  are configured to support the weight of the display device  10 . It is preferred that the front bracket and the rear bracket  61  have a predetermined strength. At this time, the brackets might be thicker than the mount plate  50  and the brackets  62  and  61  may be formed of a material having a lower strength than a material of the mount plate  50  does, for example, aluminum. 
     As mentioned above, the upper surface of the seating portion  63  has the same curvature as the handle  51  has. Even if the handle  51  is tilted within a predetermined range, the mount plate may be coupled to the mount fixer  60  as shown in  FIG. 5 .  FIG. 6  shows that the lower end of the front bracket  62  is projected and coupled to the rear bracket  61  and it seems that the seating portion  63  is formed by the front bracket  62 . In contrast, the lower end of the rear bracket  61  is projected forward and coupled to the lower end of the front bracket  62 . Even in this instance, the seating portion  63  is formed by the rear bracket  61 . 
     The space of the seating portion  63 , in other words, a distance between the front bracket  62  and the upper end of the front bracket has to be wide enough to insert the handle  51  therein, such that the width of the seating portion  63  may be larger than the thickness of the handle  51 . 
     The frictional member  64  may be further provided to seat the handle  51  in the seating portion  63  more stably as shown in  FIG. 6 . The frictional member  64  may be provided in each of front and rear portions of the seating portion  63 , in other words, in front bracket  62  and the rear bracket  61 , or it may be provided in the front or the rear portion of the seating portion  63 . 
     The frictional member  64  is configured to prevent the display device  10  from being tilted rightward and leftward easily, when the handle  51  is insertedly seated in the seating portion  63 . Such a frictional material as rubber is used in pressing the handle  51  with a friction force, when the handle  51  is inserted. In other words, the frictional member  64  may be formed of silicon or rubber having friction and elasticity. 
     Especially, when a middle portion of the frictional member is formed convex to be more projected than an upper portion as shown in  FIGS. 3 and 6 , it is easy to insert the handle  51  in the seating portion and the handle  51  is prevented from coming off or moving rightward and leftward easily. In the drawings, only the middle portion is projected and a lower portion may be projected. 
     The top bracket  66  is coupled to the upper end of the rear bracket  61  and it is sliding toward the front bracket  62  to cover the upper portion of the seating portion  63 . That is to prevent the handle  51  from coming off from the seating portion  63 . In case an external shock is applied to the display device  10  while it is used, the display device  10  might fall down disadvantageously with no top bracket  66 . 
     When the handle  51  is inserted in the seating portion  63 , the top bracket  66  is positioned on the rear bracket  61 . After the handle  51  is inserted in the seating portion  63 , the top bracket  66  is sliding toward the front bracket  62  from the rear bracket  61  as shown in  FIG. 7 , such that the top bracket  66  may be coupled to the front bracket  62  to cover the upper portion of the seating portion  63 . 
       FIG. 3  is a side diagram illustrating the display device according to one embodiment of the present invention, when the mount fixer  60  is coupled to the mount plate  50 . The distance spaced apart from a wall surface of the seating portion  63  is corresponding to the thickness of the rear bracket  61  and the thickness of the frictional member  64  near the rear bracket  61 . At this time, the thickness (A) from the position of the control box  40  where the mount plate  50  is coupled to the a back surface may be the same as the distance (B) from the wall surface of the seating portion  63 . 
     When the thickness (A) from the portion where the control box  40  is coupled to the mount plate  50  to the back surface is larger than the distance (B) from the wall surface of the seating portion  63 , the lower end of the display device  10  is projected more. When the thickness (A) is smaller than the distance (B), the upper end of the display device  10  is projected more. 
     At this time, a rubber  45  may be further provided in the back surface of the control box  40 . The rubber  45  is a portion of the back surface composing the control box  40  that contacts with the wall, when the display device  10  is hung on the wall. If it were not for the rubber  45 , the shock generated when the control box  40  is collided against with the wall while the display device  10  is mounted to the wall fails to be absorbed. The rubber  45  may be formed of a frictional rubber or silicon material. Even when the wall is not smooth, the rubber  45  can compensate a predetermined height from the wall. 
     As mentioned above, according to at least one embodiment of the present invention, an installation angle can be changed to make the display device leveled even after the mount device is installed. Accordingly, the difficulty in leveling the display device when it is mounted to the wall can be relieved. 
     Furthermore, the structure of the mount device can be simple and the number of the parts can be reduced. Accordingly, the installation process can be simple and the time taken to install the display device to the wall can be reduced. 
     When a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to affect such feature, structure, or characteristic in connection with other ones of the embodiments. Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. 
     More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.