FLAT-PANEL DISPLAY DEVICE, STEREO DISPLAY DEVICE AND PLASMA DISPLAY DEVICE

摘要

A flat-panel display device (20) comprises a backlight system (21) and a display screen (22). The backlight system (21) comprises a light source (25), a light-diffusion mechanism (24), and a back frame (23). The back frame (23) supports the light source (25) and the light-diffusion mechanism (24), said light-diffusion mechanism (24) conducting light from the light source (25) to the display screen (22). The back frame (23) comprises main assembly components (231, 232, 233, 234, 261, 262) and secondary assembly components (235, 236) as well as support brackets (60, 70) serving to fix in place a circuit board (11180). At least two main assembly components (231, 232, 233, 234, 261, 262) assemble together by means of assembly parts (2311, 2312, 2611, 2621), said main assembly components (231, 232, 233, 234, 261, 262) being of different heat-conductive materials. In addition, the assembly parts (2311, 2312, 2611, 2621) of the main assembly components (231, 232, 233, 234, 261, 262) are provided with reinforcing structures, and the circuit board (11180), the positioning of which is adjustable, is held in place by means of the support brackets (60, 70). Also provided are a stereo display device (30) and a plasma display device (40). The back frame (23) features a simple structure enabling reduction of back frame mold costs, favoring heat dispersal, enabling the strength of the back frame (23) to meet requirements, and contributing to holding in place the circuit board (11180) while economizing back frame (23) materials, thus reducing the production cost of the flat-panel display device (20).