光电子技术, 2011, 31 (3): 162, 网络出版: 2011-11-08
一种高亮度直下式背光液晶模组设计
A High Light Direct-type Backlight Design for LCD Module
发光二极管 背光源 直下式 高亮度 液晶显示 液晶模组 LED (Light Emitting Diode) BLU (Back Light Unit) direct type high light LCD (Liquid Crystal Display) LCM(LCD Module)
摘要
研究开发了一款高亮度液晶显示用117 cm直下式背光模组,光源采用中功率高显色指数的LED,外加直下式用发散透镜结构,背光模组的混光距离为22 mm,中心亮度最高可达到26 000 cd／m2以上,加上液晶屏之后,整个液晶模组亮度可在1 500 cd／m2以上。通过对LED阵列的混光效果、电路驱动和散热设计,实现了一种具有高亮度、高显色画质、散热好、低功耗的直下式背光方案,为要求高亮度、优良画质的液晶电视、液晶展示屏和广告屏等产品的开发提供了有力支持。
Abstract
A new 117 cm light direct-type backlight for LCD module has been designed, with optical length within 22 mm and centre lightness above 26 000 cd/m2 using middle-power, high color render LED with diffuse lens. The LCM can get to 1 500 cd/m2 above with open cell. A direct type LCM design with features of high lightness, nice display quality, good heat dissipation and low-power consumption is realized by optical effect, circuit drive and thermal design, giving strong support to the product with high light and nice display quality, such as LCD TV, LCD-Exhibit etc.
范曼宁, 张国义, 郝茂盛, 陈云峰. 一种高亮度直下式背光液晶模组设计[J]. 光电子技术, 2011, 31(3): 162. Fan Manning, Zhang Guoyi, Hao Maosheng, Chen Yunfeng. A High Light Direct-type Backlight Design for LCD Module[J]. Optoelectronic Technology, 2011, 31(3): 162.
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