电子器件2008，Vol.31Issue(1)：148-152,5.
新型结构之直下式背光模组最佳化设计
Optimal Design for New Structure in the Direct-Light-Type Backlight Module
摘要
Abstract
In the direct-light-type backlight module, besides uniformity, the efficiency of light is also the important property. The common method is using optical ray-tradng of business software to simulate backlight module pa-rameters. But using optical software costs a lot of time and they have no optimum function. It can not satisfy speedy simulation of requirement to design and research. We change structure of bottom reflector in the backlight module, to add triangular reflect object between lamps. They can decrease rays' angle with normal, and collimate direction of rays. Then building up program include ray-tracing, distribution of illumination, and optimization to reduce time for simulation. We optimize both uniformity and efficiency of light, and using optical software to test and verify. To simulate 32 inch 16.9 panel, depth is 2. 5 cm, number of lamps is 10 with triangular reflect object and to add easy scatter of diffuser on module, the optimal distribution of light for half-intensity angle is 46°, and u-niformity is also over 90%. Basing on the results, some optical films or sheets can be leaved out and the cost of module will greatly reduce.关键词
直下式背光模组/光跻模拟/均齐度/光使用效率/最佳化Key words
direct-light-type backlight module/simulation of ray-tracing/ uniformity/ efficiency of light,optimization分类
信息技术与安全科学引用本文复制引用
陈奇夆,吕理铭..新型结构之直下式背光模组最佳化设计[J].电子器件,2008,31(1):148-152,5.基金项目
This work is partially supported by National Science Council,under Contract NSC-95-2221-E-008-047. （）
