Liquid crystal display device module and liquid crystal display monitor mounting the liquid crystal display module

Abstract

A liquid crystal display module includes a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of substrates, an illuminating device disposed behind the liquid crystal display panel, an upper frame, and a lower frame. The upper and lower frames fix therebetween the liquid crystal display panel and the illuminating device as an integral unit in cooperation with each other. The upper frame is provided with at least one recessed portion in a sidewall thereof, the at least one recessed portion is set back in a direction parallel with major surfaces of the substrates from the sidewall, and a bottom of the at least one recessed portion is provided with a tapped hole adapted for engagement with a screw for mounting the liquid crystal display module to external equipment.

1. A liquid crystal display module comprising:
 a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of substrates; 
 an illuminating device disposed behind said liquid crystal display panel; 
 an upper frame; and 
 a lower frame, said upper frame and said lower frame fixing therebetween said liquid crystal display panel and said illuminating device as an integral unit in cooperation with each other, and 
 said upper frame being provided with at least one recessed portion in a sidewall thereof, said at least one recessed portion being set back in a direction parallel with major surfaces of said pair of substrates from said sidewall, and 
 a bottom of said at least one recessed portion being provided with a tapped hole adapted for engagement with a screw for mounting said liquid crystal display module to external equipment. 
 
     
     
       2. A liquid crystal display module according to  claim 1 , wherein said at least one recessed portion includes at least two recessed portions each disposed at respective corners of said upper frame. 
     
     
       3. A liquid crystal display module according to  claim 1 , wherein said at least one recessed portion is disposed between adjacent corners of said upper frame. 
     
     
       4. A liquid crystal display module according to  claim 1 , wherein said at least one recessed portion includes a recessed portion at a corner of said upper frame and a recessed portion disposed between adjacent corners of said upper frame. 
     
     
       5. A liquid crystal display module according to  claim 2 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       6. A liquid crystal display module according to  claim 3 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       7. A liquid crystal display module according to  claim 4 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       8. A liquid crystal display monitor including said liquid crystal display module according to  claim 1 , further comprising a module receiving member made of a metal, wherein said module receiving member is provided with a hole for passing said screw therethrough for affixing said liquid crystal display module to said module receiving member, and thereby said liquid crystal display module is mounted to said external equipment via said module receiving member. 
     
     
       9. A liquid crystal display module comprising:
 a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of substrates; 
 an illuminating device disposed behind said liquid crystal display panel; 
 an upper frame; and 
 a lower frame, said upper frame and said lower frame fixing therebetween said liquid crystal display panel and said illuminating device as an integral unit in cooperation with each other, and 
 said upper frame being provided with at least one recessed portion in a sidewall thereof, said at least one recessed portion being set back in a direction parallel with major surfaces of said pair of substrates from said sidewall, 
 a bottom of said at least one recessed portion being provided with a hole adapted for passing therethrough a screw for mounting said liquid crystal display module to external equipment, and 
 a portion of said lower frame facing said hole being provided with a tapped hole adapted for engagement with said screw. 
 
     
     
       10. A liquid crystal display module according to  claim 9 , wherein said at least one recessed portion includes at least two recessed portions each disposed at respective corners of said upper frame. 
     
     
       11. A liquid crystal display module according to  claim 9 , wherein said at least one recessed portion is disposed between adjacent corners of said upper frame. 
     
     
       12. A liquid crystal display module according to  claim 9 , wherein said at least one recessed portion includes a recessed portion at a corner of said upper frame and a recessed portion disposed between adjacent corners of said upper frame. 
     
     
       13. A liquid crystal display module according to  claim 10 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       14. A liquid crystal display module according to  claim 11 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       15. A liquid crystal display module according to  claim 12 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       16. A liquid crystal display monitor including said liquid crystal display module according to  claim 9 , further comprising a module receiving member made of a metal, wherein said module receiving member is provided with a hole for passing said screw therethrough for affixing said liquid crystal display module to said module receiving member, and thereby said liquid crystal display module is mounted to said external equipment via said module receiving member. 
     
     
       17. A liquid crystal display module comprising:
 a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of substrates;   an illuminating device disposed behind said liquid crystal display panel;   an upper frame; and   a lower frame,   said upper frame and said lower frame fixing therebetween said liquid crystal display panel and said illuminating device as an integral unit in cooperation with each other, and   said lower frame being provided with at least one tapped hole in a rear surface thereof adapted for engagement with a screw for mounting said liquid crystal display module to external equipment.   
     
     
       18. A liquid crystal display module according to  claim 17 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       19. A liquid crystal display module according to  claim 17 , wherein said illuminating device comprises a plurality of line light sources arranged behind said liquid crystal display panel and a reflector having continuous corrugations formed by gentle peaks and valleys and disposed behind said plurality of line light sources, and said at least one tapped hole is disposed in a portion of said lower frame corresponding to one of said peaks. 
     
     
       20. A liquid crystal display module according to  claim 19 , wherein said lower frame is molded of resin material, and said tapped hole is provided in one of said resin material and a metal insert embedded in said resin material. 
     
     
       21. A liquid crystal display monitor including said liquid crystal display module according to  claim 17 , further comprising a module receiving member made of a metal, wherein said module receiving member is provided with a hole for passing said screw therethrough for affixing said liquid crystal display module to said module receiving member, and thereby said liquid crystal display module is mounted to said external equipment via said module receiving member. 
     
     
       22. A liquid crystal display device comprising:
 an upper frame element;   a liquid crystal panel;   a backlight unit disposed behind said liquid crystal panel; and   a light diffusing plate disposed between said liquid crystal panel and said backlight unit,   wherein said backlight unit comprises a lower frame element, a reflective plate disposed over said lower frame element and a plurality of linear lamps arranged over said reflective plate,   wherein a plurality of screw-receiving holes are formed in a bottom and a side wall of said lower frame element,   wherein said upper frame element is fixed with said sidewall of said lower frame element by screws, and said bottom of said lower frame element is fixed with an outer frame element by screws, and   wherein a space is formed to face said screw-receiving holes in said lower frame element, and   wherein a power unit circuit board is disposed at a rear side of said outer frame element,   said power unit circuit board not being overlapped with said plurality of screw-receiving holes in said bottom of lower frame element.   
     
     
       23. The liquid crystal display device according to claim 22, wherein said plurality of screw-receiving holes are adapted to be used for fixing a substrate behind said lower frame element. 
     
     
       24. The liquid crystal display device according to claim 22, wherein at least a portion of said reflective plate touches said lower frame element. 
     
     
       25. The liquid crystal display device according to claim 22, wherein said linear lamps are cathode fluorescent lamps. 
     
     
       26. The liquid crystal display device according to claim 22, wherein
 said reflective plate is formed with portions concave toward said liquid crystal panel and portions convex toward said liquid crystal panel, and   said cathode fluorescent lamps are disposed over said portions concave toward said liquid crystal panel, respectively.   
     
     
       27. The liquid crystal display device according to claim 26, wherein
 each of said portions convex toward said liquid crystal panel is disposed between corresponding two adjacent ones of said cathode fluorescent lamps, and   said space provided between said hole-forming portion of said frame element and said reflective plate is formed between a corresponding one of said portions convex toward said liquid crystal panel of said reflective plate and said frame element.   
     
     
       28. A liquid crystal display device comprising:
 a liquid crystal panel;   a backlight unit disposed behind said liquid crystal panel; and   a light diffusing plate disposed between said liquid crystal panel and said backlight unit, wherein   said backlight unit comprises a frame element, a reflective plate disposed over said frame element and a plurality of linear lamps arranged over said reflective plate,   said frame element is formed with a screw-receiving hole,   at least one spaced area is formed between said frame element and said reflective plate, and   a distance between a portion of said frame element formed with said screw-receiving hole and said reflective plate is longer than a distance between said frame element and said reflective plate in said at least one spaced area as measured right under a corresponding one of said linear lamps, and   wherein a power unit circuit board is disposed at a rear side of said outer frame element,   said power unit circuit board not being overlapped with said plurality of screw-receiving holes in said bottom of lower frame element.   
     
     
       29. The liquid crystal display device according to claim 28, wherein said screw-receiving hole is adapted to be used for fixing a substrate behind said frame element. 
     
     
       30. The liquid crystal display device according to claim 28, wherein at least a portion of said reflective plate touches said frame element. 
     
     
       31. The liquid crystal display device according to claim 28, wherein said linear lamps are cathode fluorescent lamps. 
     
     
       32. The liquid crystal display device according to claim 28, wherein said reflective plate is formed with portions concave toward said liquid crystal panel and portions convex toward said liquid crystal panel, and wherein said cathode fluorescent lamps are disposed over said portions concave toward said liquid crystal panel, respectively. 
     
     
       33. The liquid crystal display device according to claim 32, wherein each of said portions convex toward said liquid crystal panel is disposed between corresponding two adjacent ones of said cathode fluorescent lamps. 
     
     
       34. A liquid crystal display device comprising:
 an upper frame element;   a liquid crystal panel;   a backlight unit disposed behind said liquid crystal panel; and   a light diffusing plate disposed between said liquid crystal panel and said backlight unit, wherein   said backlight unit comprises a lower frame element, a reflective plate disposed over said lower frame element and a plurality of linear lamps arranged over said reflective plate,   said liquid crystal panel is disposed between said upper frame element and said lower frame element,   a plurality of screw-receiving holes are formed in a bottom and a sidewall of said lower frame-element, wherein said upper frame element is fixed with said sidewall of said lower frame element by screws,   said bottom of said lower frame element is fixed with an outer frame element by screws, and   screws inserted in said screw-receiving holes of said lower frame element are not in contact with said reflective plate, and   a power unit circuit board is disposed at a rear side of said outer frame element,   said power unit circuit board not being overlapped with said plurality of screw-receiving holes in said bottom of lower frame element.   
     
     
       35. A liquid crystal display device comprising:
 an upper frame element;   a liquid crystal panel;   a backlight unit disposed behind said liquid crystal panel; and   a light diffusing plate disposed between said liquid crystal panel and said backlight unit, wherein   said backlight unit comprises a lower frame element, a reflective plate disposed over said lower frame element and a plurality of linear lamps arranged over said reflective plate,   said liquid crystal panel is disposed between said upper frame element and said lower frame element,   four screw receiving holes are formed in a bottom of said lower frame element, and each of said four screw-receiving holes are located at a first quadrant, second quadrant, third quadrant, or fourth quadrant where a center of said lower frame element is an origin relative to the first, second, third and fourth quadrants,   said bottom of said lower frame element is fixed with an outer frame element by screws,   said four screw receiving holes are not overlapped with a power unit circuit board connecting said liquid crustal panel, and   screws inserted from said outer frame side toward said lower frame side in said screw-receiving holes of said lower frame element are not in contact with said reflective plate.   
     
     
       36. A liquid crystal display device according to claim 34, wherein said four screw receiving holes are radially located from the center of said lower frame element. 
     
     
       37. A liquid crystal display device according to claim 28, wherein said plurality of screw receiving holes is four. 
     
     
       38. A liquid crystal display device according to claim 34, wherein said plurality of screw receiving holes is four.