For the current writing AMOEL display panel data driving circuit includes a plurality of current output channels; a plurality of current output channels in various channels on the current generating circuit for the current level to minimize the difference between the current output channel. Each channel current generating circuit includes a pair of transistors; current generating part for small deviation threshold voltage and current of a transistor difference is proportional to the square of the current mirror; and, to the mirror on the current line, and will mirror the current channel as current channel so that the transmission line, to minimize the difference the current level of output between channels, and even drive AMOEL display panel.
【技术实现步骤摘要】
【技术保护点】
一种用于电流写入型有源矩阵有机电致发光显示面板的数据驱动电路,包括: 多个电流输出通道;以及 多个在各自电流输出通道上的通道电流产生电路,用于使在电流输出通道之间产生的电流级别的差最小化,每一个通道电流产生电路包括: 一对晶体管, 电流产生部分,用于产生与一对晶体管的门限电压的差的平方成正比的小偏差的电流,以及 电流镜像部分,用于对电流入行镜像,并将镜像的电流作为通道的通道电流入行发送。
【技术特征摘要】
...
【专利技术属性】
技术研发人员:金学洙,罗永善,权五庆,
申请(专利权)人:LG电子株式会社,
类型:发明
国别省市:KR[韩国]
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