Abstract:
A holder for fixing a display module to the casing of a display device is disclosed. The holder includes a bent portion and an elastic arm. The bent portion is fixed to the casing. The elastic arm is connected to the bent portion. The elastic arm is fixed to the side of the display module. A display device using the holder is also disclosed.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 097105161 filed in Taiwan, Republic of China on Feb. 14, 2008, the entire contents of which are hereby incorporated by reference. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of Invention 
         [0003]    The invention relates to a holder and, more particularly, to a holder for fixing a display module and a display device using the same. 
         [0004]    2. Related Art 
         [0005]    An electronic device in the market is not only manufactured by one manufacturer, and it is manufactured via the cooperation of upstream manufacturers and downstream manufacturers. The electronic device is, for example, a display device. The upstream manufacturers manufacture various kinds of components, and the components are then sent to system manufacturers to be assembled. To the system manufacturers, if the number of the assembling steps is reduced, then the production cost is reduced and the production efficiency increases. 
         [0006]    A liquid crystal display device is taken as an example to illustrate the component and assembling flow path of the display device. The liquid crystal display device mainly includes a front lid, a liquid crystal display module, two holders and a back casing. The front lid, the back casing, the holder and the liquid crystal display module are manufactured by different manufacturers, respectively, and then they are assembled to be a liquid crystal display device by a system manufacturer. The assembling steps of the display device are described hereinbelow. First, the two holders are locked to the two corresponding sides of the liquid crystal display module, respectively. Then, the liquid crystal display module and the holder are disposed at the back casing. Afterward, the holder at the side is locked to the back casing. At last, the front lid is locked to the back casing. 
         [0007]    Since the front lid, the liquid crystal display module and two holders are assembled by the system manufacturer, if the assembling process is complex, a lot of assembly time is cost, and the production cost increases. In addition, the two holders at the sides are locked to the two corresponding sides of the liquid crystal display module. After that, when the liquid crystal display module is locked to screwed holes on the back casing, if the screwed holes at the liquid crystal display module and the screwed holes at the back casing are hard to be corresponding to each other because of the tolerance, the screwed holes on the back casing should be manufactured to have a big margin in the tolerance direction, and even an elliptical screwed hole is formed. Thus, a problem that the structure is not compact after the back casing is locked to the liquid crystal display device arises. The problem obsesses the system the manufacturer greatly. 
       SUMMARY OF THE INVENTION 
       [0008]    The invention provides a display device and a holder which can reduce assembly time and cost for system manufacturers and solve problems of assembly tolerance when the display device is assembled. 
         [0009]    A holder in the invention is used for fixing a display module to the casing of a display device. The holder includes a bent portion and an elastic arm. The bent portion is fixed to the casing. The elastic arm is connected to the bent portion. The elastic arm is fixed to the side of the display module. 
         [0010]    A display device in the invention includes a casing, a display module, a holder and a locking element. The display module is disposed at the casing. The holder has a bent portion and an elastic arm. The bent portion is fixed to the casing, and the elastic arm is connected to the bent portion and has a through hole. The locking element passes through the through hole and locks the elastic arm to the side of the display module. 
         [0011]    Since the holder in the invention has an elastic arm, when the locking element passes through the through hole on the elastic arm to lock the elastic arm to the display module, the elastic arm is deformed to prop against the display module and to compensate for the tolerance between the display module and the holder. Thus, the assembly closeness of the display device increases. In addition, in the display device of the invention, the holder and the casing may be assembled by manufacturers, and then they are sent to system manufacturers to make the display module and the holder assembled. Thus, the assembly cost and the production time of the system manufacturers are reduced. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0012]    The invention will become more fully understood from the detailed description and accompanying drawings, which are given for illustration only, and thus are not limitative of the present invention, and wherein: 
           [0013]      FIG. 1  is a schematic diagram showing a display device in a preferable embodiment of the invention; 
           [0014]      FIG. 2A  and  FIG. 2B  are schematic diagrams showing holders in a preferable embodiment of the invention; and 
           [0015]      FIG. 3A  and  FIG. 3B  are schematic diagrams showing a display device before a holder is locked to the display device and after the holder is locked to the display device in a preferable embodiment of the invention, respectively. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0016]    These and other features, aspects and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings. 
         [0017]    As shown in  FIG. 1 , a display device  1  in a preferable embodiment of the invention includes a casing  11 , a display module  12 , multiple holders  13   a  and  13   b  and multiple locking elements  14 . The display device  1  in the embodiment is, for example, a liquid crystal display device, but it is not used to limit the scope of the invention. The display device  1  also may be a plasma display device, an organic electroluminescense display device or a field emission display device and so on. 
         [0018]    The casing  11  is a back casing of the display device  1 , that is, the casing at the back of the display module  12 . The display module  12  is disposed at the casing  11 . The holders  13   a  and  13   b  are used to fix the display module  12  to the sides of the casing  11 . 
         [0019]    As shown in  FIG. 1  and  FIG. 2A , the holder  13   a  has a bent portion  131  and an elastic arm  132   a . The bent portion  131  in the embodiment is L-shaped. The bent portion  131  may be combined with the casing  11  in a fastening, sticking, riveting or locking mode. In the embodiment, a locking mode is taken as an example. Every bent portion  131  has two screwed holes to allow the locking element to pass through and lock the bent portion  131  and the casing  11 . 
         [0020]    The elastic arm  132   a  is connected to the bent portion  131  in a fastening, sticking, riveting, locking or an integral forming mode. The integral forming mode herein is taken as an example. In the manufacturing process, the holder  13  is integrally formed by alloy or metal. In the embodiment, an indentation space O is formed between the elastic arm  132   a  and the bent portion  131  to reduce the connecting area of the elastic arm  132   a  and the bent portion  131 . Thus, flexibility and deformation ability of the elastic arm  132   a  increase. The material of the elastic arm  132   a  has flexibility, and it may be metal or alloy. The elastic arm  132   a  has a through hole H. The locking element  14  passes through the through hole H and locks the elastic arm  132   a  to the side  121  of the display module  12 . The display module  12  also has holes corresponding to the through hole H to allow the locking element  14  to pass through. 
         [0021]    In addition,  FIG. 2B  shows another holder  13   b  in the embodiment of the invention. The difference between the holder  13   a  and  13   b  is that the elastic arm  132   a  of the holder  13   a  extends from the first end of the bent portion  131 , while the elastic arm  132   b  of the holder  13   b  extends from the second end of the bent portion  131 . The holder in the invention also may have two elastic arms  132   a  and  132   b  extending from the first end and the second end of the bent portion  131 , respectively. 
         [0022]      FIG. 3A  and  FIG. 3B  are schematic diagrams showing the display module  12  before the holder  13   a  is locked to the display module  12  and after the holder  13   a  is locked to the display module  12 , respectively. As shown in  FIG. 3A  and  FIG. 3B , before the locking element  14  passes through the through hole H and the hole  122  of the display module  12 , a tolerance D exists between the display module  12  and the bent portion  131  of the holder  13   a . After the elastic arm  132   a  is locked to the side  121  of the display module  12  by the locking element  14 , the elastic arm  132   a  is deformed and props against the side  121  of the display module  12  to compensate for the tolerance D between the holder  13   a  and the display module  12 . Thus, the assembly closeness of the holder  13   b  and the display module  12  increases. Since the holder  13   b  has the same technology feature with that of the holder  13   a , it is not described for concise purpose. 
         [0023]    In the invention, besides the embodiment above, the holder also may have multiple aspects. The shape of the holder in the invention is not limited. For example, in the embodiment above, four holders  13   a  and  13   b  are taken as an example. However, the four holders also may be combined to be one holder. The number of the through holes H on the elastic arms  132   a  and  132   b  are not limited. The elastic arms  132   a  and  132   b  may have multiple through holes. The number of the locking elements  14  and the holes of the display module  12  should increase correspondingly. 
         [0024]    As shown in  FIG. 1 , the display device  1  (such as a liquid crystal display device) may have a pivot structure  15 . The pivot structure  15  may be connected to the holder  13   b . Thus, the pivot structure  15  may be connected to the body of an electronic device. In addition, another frame (such as the frame of the display device) may be combined with the casing  11 . Thus, the assembly of the display device I is finished. 
         [0025]    Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, the disclosure is not for limiting the scope of the invention. Persons having ordinary skill in the art may make various modifications and changes without departing from the scope and spirit of the invention. Therefore, the scope of the appended claims should not be limited to the description of the preferred embodiments described above.