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.
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.
参考文献
[1] | 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. |
[2] | 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. |
[3] | 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. |
[4] | Tony Lai.LED背光方案备受关注[J].电子产品世界,2008,(1):64. |
[5] | 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. |
[6] | 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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