Abstract:
There is provided a system and method for restricting the movement of a television screen. More specifically, in one embodiment, there is provided a display unit comprising a screen, and a frame member connected without a bezel to the screen, wherein the frame member comprises a first channel configured to receive a bracket and a second channel configured to receive the screen.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a continuation of International PCT Application No. PCT/US2005/047555, filed on Dec. 29, 2005, which claims priority to U.S. Provisional Patent Application No. 60/641,411, and U.S. Provisional Patent Application No. 60/641,673, both filed on Jan. 5, 2005. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention relates generally to systems for projecting video images onto a screen. More specifically, the present invention relates to a system for mounting a television screen within a display unit. 
       BACKGROUND OF THE INVENTION 
       [0003]    This section is intended to introduce the reader to various aspects of art which may be related to various aspects of the present invention which are described below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present invention. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art. 
         [0004]    Televisions, especially projection televisions, may be built with a large frame around the television screen to mount and maintain the television screen in place. This large frame may disadvantageously enlarge the overall dimensions of the television. In addition, these large frames may disadvantageously create a television with a deep cross section due to the depth of the bezel. 
         [0005]    As most people are aware, the screen is one of the most expensive and fragile components of a modern television system, such as a projection television. Often, the screen of a television comprises multiple layers or lenses. For example, most rear projection televisions comprise a screen formed from an inner fresnel surface, which magnifies and disperses the projected image, and an outer lenticular surface, which helps to shape the final shape of the image and may increase the contrast and the viewing angle of the screen. 
         [0006]    Both the fresnel surface and the lenticular surface can be damaged during transportation of the television if the screen rubs up against the other components of the television. In addition, if the screen rubs against other components of the television, dust may be generated, which can interfere with the operation of the television 
         [0007]    One method of protecting the screen is to tape the edges of the fresnel surface and the lenticular surface together. However, disadvantageously, in the case of a television using a very small frame (i.e. a small television), the small size of the television border may require the tape to be very accurately applied to prevent it from being visible to the user. While applying the tape this accurately is possible, it may be time-consuming and thus expensive. Another method to restrict movement and vibration of the screen is to pinch the screen between a u-shaped part. Disadvantageously, however, this u-shaped part may make the screen more difficult to install and may require an increase in the size of the television frame. 
         [0008]    Embodiments of the present invention may address one or more problems set forth above. 
       SUMMARY OF THE INVENTION 
       [0009]    Certain aspects commensurate in scope with the disclosed embodiments are set forth below. It should be understood that these aspects are presented merely to provide the reader with a brief summary of certain forms the invention might take and that these aspects are not intended to limit the scope of the invention. Indeed, the invention may encompass a variety of aspects that may not be set forth below. 
         [0010]    The present invention is directed towards a method and a system for mounting a display screen, such as a television screen. Specifically, in one embodiment, there is provided a plastic mounting component mountable to a television frame, wherein the plastic mounting component is configured to protect the television screen by restricting movement and vibration of the of the television screen. In another embodiment, there is provided a thin frame that can be mounted directly onto the upper main section of a display unit, such as a television. This small metallic frame creates a thin screen profile that has no visible front bezel. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]    Advantages of the invention may become apparent upon reading the following detailed description and upon reference to the drawings in which: 
           [0012]      FIG. 1  is a diagram illustrating a cross-sectional view of an exemplary frame member in accordance with embodiments of the present invention; 
           [0013]      FIG. 2  is a diagram illustrating an exemplary embodiment of a screen assembly in an unbracketed position in accordance with embodiments of the present invention; 
           [0014]      FIG. 3  is a diagram illustrating an exemplary screen assembly in a bracketed position in accordance with embodiments of the present invention; 
           [0015]      FIG. 4  is a diagram illustrating an exemplary screen assembly in accordance with embodiments of the present invention; 
           [0016]      FIG. 5  is a diagram illustrating a perspective view of the back of an exemplary display unit in accordance with embodiments of the present invention; 
           [0017]      FIG. 6  is a diagram illustrating a cross-sectional view of an exemplary display unit in accordance with embodiments of the present invention; 
           [0018]      FIG. 7  is a diagram illustrating a perspective view of the side of an exemplary display unit in accordance with embodiments of the present invention; 
           [0019]      FIG. 8  is a diagram illustrating a front view of an exemplary display unit in accordance with embodiments of the present invention; and 
           [0020]      FIG. 9  is a diagram illustrating a cross-sectional view of an exemplary display unit in accordance with embodiments of the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0021]    One or more specific embodiments of the present invention will be described below. In an effort to provide a concise description of these embodiments, not all features of an actual implementation are described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers&#39; specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure. 
         [0022]    As described above, televisions, especially projection televisions, are typically built with a large frame around the television screen to mount and maintain the television screen in place. This large frame may disadvantageously enlarge the overall dimensions of the television. In addition, these large frames may disadvantageously create a television with a deep cross section due to the depth of the bezel. As such, embodiments of the present invention may be directed towards a thin frame for a television that can be mounted on the back end of a television without a bezel. 
         [0023]    Referring now to  FIG. 1 , a diagram of a cross-sectional view of an exemplary frame member in accordance with embodiments of the present invention is illustrated and generally designated by a reference numeral  10 . In one embodiment, the frame member  10  may comprise and extruded metal component. In alternate embodiments, the frame member  10  may comprise another suitable material. 
         [0024]    The frame member  10  may comprise a screen area  12  and a corner bracket area  14 . In one embodiment, the frame member  10  is configured in either an “s” or “reverse-s” shape with the screen area  12  occupying one half of the “s” and the corner bracket area  14  occupying the other half. The screen area  12  may be configured to receive and mount a television screen. For example, the screen area  12  is configured to mount a rear projection television screen. In one embodiment, the screen area is a generally “unshaped” channel configured to frictionally attach to the television screen. Moreover, the corner bracket area  14  may be configured to receive a bracket for mounting multiple sections of the frame member  10  together to frame a screen. In one embodiment, the corner bracket area  14  may also comprise a generally “u-shaped” channel. For example, in the illustrated embodiment, the corner bracket area  14  comprises a generally “u-shaped” channel with retaining areas  16  and  18  configured to retain a bracket (as described further below). Moreover, in some embodiments, such as the embodiment illustrated in  FIG. 1 , the screen area  12  and the corner bracket area  14  may share a wall, such as wall  20 . 
         [0025]    Turning next to  FIG. 2 , an exemplary screen assembly  30  in an unbracketed position in accordance with embodiments of the present invention is illustrated. The screen assembly  30  may comprise multiple frame members  10   a  and  10   b . The frame members  10   a,b  may be attached together by a corner bracket  32 . As shown in  FIG. 2 , the corner bracket  32  may attach to the corner bracket area  14  to connect the frame member  10   a  to the frame member  10   b  to create a frame for screen  34 . In one embodiment, the corner bracket  32  may be frictionally connected to the frame members  10   a,b . In another embodiment, the corner bracket  32  may be fastened to the frame members  10   a,b  by the threaded fasteners disposed through mounting holes  36  in the frame members  10   a,b . In alternate embodiments, different fastening mechanisms may be used to fasten the frame members  10   a,b  to the corner bracket  32 . As shown in  FIG. 2 , the mounting holes  36  may also be employed to mount the screen assembly  30  to an upper main unit  52  of a television (shown in  FIG. 5 ). 
         [0026]      FIG. 3  is a diagram illustrating an exemplary screen assembly in a bracketed position in accordance with embodiments of the present invention. It is important to note that the frame members  10   a, b  may be configured such that the corner bracket area  14  is open away from the screen assembly  30  (opposite from the direction of opening of the screen area  12 ) to reduce the chances that metal slivers or burrs will fall into the screen area during assembly. 
         [0027]      FIG. 4  is a diagram illustrating an exemplary screen assembly  30  in accordance with embodiments of the present invention.  FIG. 4  illustrates four frame members  10  connected together to form a frame for the screen  34 . In the embodiment of the screen assembly  30  illustrated in  FIG. 4 , the screen assembly also comprises two speaker grills  38 . The speaker grills  38  may facilitate mounting speakers behind the speaker grills  38  to broadcast sound to accompany the picture being displayed on the screen  34 . In this embodiment, the speaker grills  38  may be configured to mount in the screen area  12  of the frame members  10 . Those skilled in the art will appreciate that in alternate embodiments the speaker grills  38  may be absent. 
         [0028]    Turning next to  FIG. 5 , a perspective view of the back of an exemplary display unit in accordance with embodiments of the present invention is illustrated and generally designated by a reference numeral  50 . In one embodiment, the display unit  50  may comprise a rear projection television system. In another embodiment, the display unit  50  may comprise a Digital Light Processing System (“DLP”). In yet another embodiment, the display unit  50  may comprise a flat panel display, such as a plasma screen or an LCD panel. 
         [0029]    In addition to the screen assembly  30 , the display unit  50  may also comprise the upper main unit  52 . The upper main unit  52  may comprise image production components such as projectors, as well as electrical control components for the display unit  52 . The upper main unit  52  may be mounted to the screen assembly  30  by a series of threaded fasteners  56  that may be disposed through upper main mounting holes  54  and the mounting holes  36  (shown in  FIGS. 2 and 3 ). In one embodiment, the upper main mounting holes  54  may comprise internally threaded mounting holes. Those skilled in the art will appreciate that the threaded fasteners  56  are merely one example of a suitable mounting technique. In alternate embodiments, alternate mounting hardware or techniques may be employed. 
         [0030]      FIG. 6  illustrates a cross-sectional view of an exemplary display unit  50  in accordance with embodiments of the present invention. As  FIG. 6  illustrates, the threaded fastener  56  may be disposed through the upper main mounting hole  54  and through the mounting hole  36  to fasten the frame member  10  to the upper main unit  52 . As described above, in one embodiment, the upper main mounting holes  54  and the mounting holes  36  may comprise internally threaded mounting holes. 
         [0031]    Turning next to  FIG. 7 , a perspective view of the side of the exemplary display unit  50  is illustrated. As shown in  FIG. 7 , the screen assembly  30  has a relatively thin cross-sectional depth. Further, as shown in  FIG. 8 , a front view of the exemplary display unit  50  in accordance with embodiment of the present invention, the display unit  50  has no visible cabinet or front bezel around the frame members  10 . 
         [0032]    Next,  FIG. 9  illustrates a cross-sectional view of the exemplary display unit  50  in accordance with embodiments of the present invention. As described above in regard to  FIG. 5 , the display unit  50  may comprise the upper main unit  52 , the frame member  10 , and the screen  34 . Further, the upper main unit  52  may be fastened to the frame member  10  by a threaded fastener  56 . In this embodiment, the threaded fastener  56  may be disposed through mounting holes  54  and  36  located in the upper main unit  52  and the frame member  10 , respectively. Those skilled in the art will appreciate that alternate embodiments may employ different fastening techniques. 
         [0033]    The display unit  50  may also comprise a plastic mounting component  60 . As illustrated in  FIG. 9 , the plastic mounting component may be mounted or fastened to the frame member  10 . In one embodiment, the plastic mounting component  60  may be fastened to the frame member  10  by frictional contact. In another embodiment, the plastic mounting component  60  may be affixed to the frame member  10  with an adhesive. 
         [0034]    Those skilled in the art will appreciate that the plastic mounting component  60  may be installed into the frame member  10  before the screen  34  is mounted. In other words, the plastic mounting component  60  does not need to be affixed to the screen  34  before the screen  34  is mounted in the frame member  10 . In this way, the plastic mounting component is relatively easy and inexpensive to install compared with mounting components or tapes that must be affixed to the screen  34  prior to installation. 
         [0035]    The plastic mounting component  60  may comprise any one of a number suitable materials that are either soft or have a low coefficient of friction. For example, in one embodiment the plastic mounting component  60  may be comprised of nylon. In another embodiment, the plastic mounting component  60  may be comprised of low density polyethylene. Moreover, in one embodiment, the plastic mounting component  60  may be an extruded plastic mounting component. However, in alternate embodiments, different production techniques may be used for the plastic mounting component  60 . 
         [0036]    Those skilled in the art will appreciate that the plastic mounting component  60  may protect an area of the inside of the screen  34  from damage by preventing the screen  34  from coming into contact with the frame member  10 . In one embodiment, the plastic mounting component may protect an area of the fresnel surface of the screen  34 . In addition, by restricting movement of the screen  34 , the plastic mounting component may prevent the screen  34  from rubbing against other parts of the display unit  50 , which may create dust inside the display unit  50 . Those skilled in the art will appreciate that dust inside the display unit  50  is undesirable because it can interfere with the image projection and is not typically correctable by the customer. 
         [0037]    Those skilled in the art will also appreciate that the plastic mounting component  60  may be configured such that it does not block the inside ray path from the image projector within the upper main unit  52 . For example, the plastic mounting component  60  may be mounted within the overscan region of the display unit  50 . 
         [0038]    While the invention may be susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described in detail herein. However, it should be understood that the invention is not intended to be limited to the particular forms disclosed. Rather, the invention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the following appended claims.