Frame Buffer Pixel Circuit of Liquid Crystal on Silicon Display Device
    1.
    发明申请
    Frame Buffer Pixel Circuit of Liquid Crystal on Silicon Display Device 审中-公开
    液晶显示装置上的液晶缓冲像素电路

    公开(公告)号:US20130069966A1

    公开(公告)日:2013-03-21

    申请号:US13701009

    申请日:2011-08-17

    Abstract: The present invention discloses a frame buffer pixel circuit for a LCoS display device, wherein said circuit consists of a first transistor (M1), a second transistor (M2), a third transistor (M3), a fourth transistor (M4), a fifth transistor (M5), a sixth transistor (M6), a storage capacitor (C1) and a pixel capacitor (C2), wherein, the first transistor (M1) forms a pre-charge circuit, the second transistor (M2) and the third transistor (M3) form a threshold voltage generating circuit, the storage capacitor (C1) forms a sample and hold circuit, the fourth transistor (M4), the fifth transistor (M5) and the pixel capacitor (C2) form an input data voltage read-in circuit, and the sixth transistor (M6) forms a discharge circuit. The present invention has a threshold voltage added when writing the input data voltage into the storage capacitor so as to cancel out the threshold voltage lost by reading the voltage on the storage capacitor onto the pixel capacitor, thereby ensuring consistency of the output pixel voltage and improving the display effect.

    Abstract translation: 本发明公开了一种用于LCoS显示装置的帧缓冲像素电路,其中所述电路由第一晶体管(M1),第二晶体管(M2),第三晶体管(M3),第四晶体管(M4),第五晶体管 晶体管(M5),第六晶体管(M6),存储电容器(C1)和像素电容器(C2),其中,第一晶体管(M1)形成预充电电路,第二晶体管(M2) 晶体管(M3)形成阈值电压发生电路,存储电容器(C1)形成采样保持电路,第四晶体管(M4),第五晶体管(M5)和像素电容器(C2)形成输入数据电压读 并且第六晶体管(M6)形成放电电路。 本发明在将输入数据电压写入存储电容器时附加了阈值电压,以通过将存储电容器上的电压读入像素电容器来消除阈值电压损失,从而确保输出像素电压的一致性和改善 显示效果。

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