一个帧可控通用LCD驱动电路的设计  

Design of a Frame Controllable Universal LCD Driver Circuit

作　　者：朱培敏 兰亚峰 ZHU Peimin;LAN Yafeng(China Electronics Technology Group Corporation No.58 Research Institute,Wuxi 214035,China)

机构地区：[1]中国电子科技集团公司第五十八研究所,江苏无锡214035

出　　处：《电子与封装》2023年第7期46-52,共7页Electronics & Packaging

摘　　要：设计了一款高度灵活、帧速率可控的液晶显示(LCD)驱动电路,该驱动电路由外部电源供电,可工作在高性能或低功耗模式。在通用LCD驱动电路的基础上增加了前置频率发生器,实现了帧频速率在30~100 Hz之间高度灵活可编。死区持续时间的插入使对比度在电压调控的基础上更加细化,同时也降低了电路的功耗。该驱动电路提供了多种可选的驱动方案,最多可驱动216(8×27)个LCD像素。A highly flexible,frame rate controllable liquid crystal display(LCD)driver circuit is designed.The driver circuit is powered by an external power supply and can operate in high performance or low power mode.On the basis of the universal LCD driver circuit,a pre-frequency generator is added to achieve highly flexible and programmable in the frequency rate of 30-100 Hz.On the basis of voltage regulation,the dead time duration regulation can be inserted to improve the contrast regulation and reduce the power performance of the circuit.The driver circuit provides a variety of driver options,driving up to 216(8×27)LCD pixels.

关 键 词：LCD驱动 低功耗 帧可控 对比度调控 平均电压法 

分 类 号：TN453[电子电信—微电子学与固体电子学]