Circuit Design of Edge Light LED Backlight

LI Xiu-zhen; XU Yian-wen; WAN Li-fang; WANG Qing-jiang; ZHAO Xing-xing

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Circuit Design of Edge Light LED Backlight

Driving & Controlling | 更新时间：2020-08-12

- Circuit Design of Edge Light LED Backlight
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 2, Pages: 250-252(2010)
- 作者机构：
  
  1. 北京京东方茶谷电子有限公司, 北京 100176, E-mail:lixiuzhen@boe.com.cn
  2. 京东方科技集团股份有限公司中央研究院北京,100016
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN141.9
- Received：30 July 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2010，
  
  Published：30 April 2010
- 稿件说明：
移动端阅览
李秀真;许燕文;万丽芳;王庆江;赵星星. 一种侧光式LED背光源的电路设计[J]. 液晶与显示, 2010,25(2): 250-252

LI Xiu-zhen;XU Yian-wen;WAN Li-fang;WANG Qing-jiang;ZHAO Xing-xing. Circuit Design of Edge Light LED Backlight[J]. 液晶与显示, 2010,25(2): 250-252
李秀真;许燕文;万丽芳;王庆江;赵星星. 一种侧光式LED背光源的电路设计[J]. 液晶与显示, 2010,25(2): 250-252 DOI：

LI Xiu-zhen;XU Yian-wen;WAN Li-fang;WANG Qing-jiang;ZHAO Xing-xing. Circuit Design of Edge Light LED Backlight[J]. 液晶与显示, 2010,25(2): 250-252 DOI：

摘要

设计了一款侧光式LED背光源。LED阵列选择长条式设计

用铝基板加工制作。驱动模块采用升压转换器

支持过压保护。控制模块通过单片机产生PWM波对LED灯条进行亮度控制。所设计的背光源电路简单

支持按键式调光

中、大尺寸LED背光源均可借鉴使用。

Abstract

An edge light LED backlight is designed in this paper. LED array is designed with rectangle type

processed with MCPCB. Boost inverter which supports over-voltage protection is used in the driver module. The brightness of LED light-bar is controlled by PWM wave produced from single-chip microcomputer in the control module. A LED backlight is designed in this paper

which has a good optical effect and supports keyboard dimming. The circuit is simple in this design. This paper can also be used for the design of medium-sized and large size LED backlight.

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Keywords

references

. 黄启智.LCD显示器的背光技术分析及应用 [J]. 漳州职业技术师范学院学报, 2008,10(1):4-6,30.

. 刘敬伟,张丽蕾,万丽芳,等.大尺寸液晶电视用LED背光的设计和制作 [J]. 液晶与显示, 2006,21(5):539-544.

. 王大巍,王刚,李俊峰,等. 薄膜晶体管液晶显示器件的制造、测试与技术发展 [M].北京:机械工业出版社,2007.

. Tony Lai.LED背光方案备受关注 [J]. 电子产品世界, 2008,(1): 64.

. 李秀真,张凯亮,等.一种直下式LED背光源驱动电路的设计 [J]. 现代显示, 2009,(3):58-60.

. 孙小斌,万丽芳,王庆江,等.LED背光液晶显示器的色彩管理及其特征化方法研究 [J]. 液晶与显示, 2007,22(5):603-606.

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