公开(公告)号：US5805123A

公开(公告)日：1998-09-08

申请号：US617158

申请日：1996-03-18

申请人： Toshimi Satoh ,  Tohru Hongoh ,  Toshiyuki Ouchi

发明人： Toshimi Satoh ,  Tohru Hongoh ,  Toshiyuki Ouchi

IPC分类号： G09G3/282 ,  G02F1/93

CPC分类号： G09G3/282 ,  G09G2310/0289

摘要： A display panel driving circuit in which a substantial portion of the power dissipation is in the portion of the circuit located off of the integrated circuit. A level shift circuit converts a high level of a signal S2 to a low level, converts a low level of the signal S2 to a high voltage VH level, and outputs a signal S2'. A transistor XSC connects output an terminal HVO1 to ground when signal S2 is at the high level. A transistor XSU is maintained in a nonconductive state when the output of the level shift circuit is low level and connects an output terminal HVO1 to an external signal input terminal VSU when the level shift circuit is at the high voltage VH level. A transistor XSD connects output terminal HVO1 to an external signal input terminal VSD when a signal S3 is at the low level and a signal S3' is at the high level; XSD is maintained in the nonconductive state when signal S3' is at the low level.

摘要翻译： 一种显示面板驱动电路，其中大部分功率耗散在位于集成电路外部的电路部分。 电平移位电路将高电平信号S2转换为低电平，将信号S2的低电平转换为高电压VH电平，并输出信号S2'。 当信号S2处于高电平时，晶体管XSC将输出端子HVO1连接到地。 当电平移位电路的输出为低电平时，晶体管XSU保持在非导通状态，并且当电平移位电路处于高电压VH电平时，将输出端子HVO1连接到外部信号输入端VSU。 当信号S3处于低电平并且信号S3'处于高电平时，晶体管XSD将输出端子HVO1连接到外部信号输入端子VSD; 当信号S3'处于低电平时，XSD保持在非导通状态。