Pixel circuit and display device

像素电路和显示装置

Abstract

像素电路包括:电光元件,被配置为响应于驱动信号而发光;驱动晶体管,被配置为将驱动信号提供给电光元件;像素电容器,连接到驱动晶体管的控制输入端;开关晶体管,提供在驱动晶体管的控制输入端;以及驱动信号稳定电路,被配置为将驱动信号维持在恒定电平。驱动晶体管和开关晶体管中的每一个均具有轻掺杂漏极结构,并且开关晶体管的轻掺杂漏极区具有比驱动晶体管的轻掺杂漏极区更长的长度。
A pixel circuit includes an electro-optical element configured to emit light in response to a drive signal, a drive transistor configured to supply the drive signal to the electro-optical element, a pixel capacitor connected to a control input terminal of the drive transistor, a switching transistor provided at the control input terminal of the drive transistor, and a drive-signal stabilizing circuit configured to maintain the drive signal at a constant level. Each of the drive transistor and the switching transistor has a lightly doped drain structure, and a lightly doped drain region of the switching transistor has a longer length than a lightly doped drain region of the drive transistor.

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