Liquid crystal device
    1.
    发明公开
    Liquid crystal device 失效
    液晶装置

    公开(公告)号:EP1227469A3

    公开(公告)日:2002-11-13

    申请号:EP01128824.8

    申请日:1989-05-16

    IPC分类号: G09G3/36 G02F1/1362

    摘要: A liquid crystal device for an electro-optical device is provided, the liquid crystal device including a plurality of liquid crystal cells wherein data signals are supplied to the liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements (292). The liquid crystal device comprises a substrate (71, 86) having a pixel region and at least one driver region; a plurality of first lines and a plurality of second lines arranged in a matrix in the pixel region and connected to the field effect transistors; driving circuits (21, 12) formed in the at least one driver region and connected to one of the first lines and second lines, output terminals of driver circuits connected to one of said plurality of first lines and said plurality of second lines; and at least one driver test circuit (283; 288) comprising transistors, said transistors of said at least one driver test circuit (283; 288) being coupled to a test signal input terminal (284; 289), a test signal output terminal (285; 290) and one of said first and second lines, wherein test signals applied to the test signal input terminal (284; 289) are output to said test signal output terminal (285, 290) through said transistors in accordance with the operation of said driver circuit.

    摘要翻译: 提供一种用于电光装置的液晶装置,该液晶装置包括多个液晶单元,其中数据信号通过布置在多个像素(292)中的多个场效应晶体管提供给液晶单元 )。 该液晶装置包括具有像素区域和至少一个驱动器区域的基板(71,86) 多个第一线和多个第二线,所述多个第一线和多个第二线以矩阵形式布置在所述像素区中并连接到所述场效应晶体管; 驱动电路(21,12),形成在所述至少一个驱动器区域中并连接到所述第一线和第二线中的一个,驱动器电路的输出端连接到所述多条第一线和所述多条第二线中的一条; 和至少一个包括晶体管的驱动器测试电路(283; 288),所述至少一个驱动器测试电路(283; 288)的所述晶体管耦合到测试信号输入端子(284; 289),测试信号输出端子 其中施加到测试信号输入端子(284; 289)的测试信号通过所述晶体管根据下列操作被输出到所述测试信号输出端子(285,290): 所述驱动器电路。

    Liquid crystal device
    4.
    发明公开
    Liquid crystal device 失效
    液晶装置

    公开(公告)号:EP0806702A1

    公开(公告)日:1997-11-12

    申请号:EP97200957.5

    申请日:1989-05-16

    IPC分类号: G02F1/136

    摘要: A liquid crystal device for an electro-optical device is provided, the liquid crystal device including a plurality of liquid crystal cells wherein data signals are supplied to the liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements (292). The liquid crystal device comprises a picture element matrix (240) including a plurality of source lines and a plurality of picture elements coupled to a plurality of source lines; and a source line driving circuit coupled to the picture element matrix (240) through the plurality of the source lines, the source line driving circuit comprising a plurality of signal buses (231, 232, 233) and a plurality of sample-hold circuits (234, 235, 236) coupled to the plurality of signal buses (231, 232, 233) through a plurality of connecting lines (237, 238, 239), wherein the distance between one of the signal buses and one of the sample-hold circuits is different from the distance between another one of the signal buses and another one of the sample-hold circuits, and the resistances of the connecting line for connecting the one of the signal buses to the one of the sample-hold circuits are substantially equal to the resistance of the connecting line for connecting another one of the signal buses to another one of sample-hold circuits.

    摘要翻译: 提供一种用于电光装置的液晶装置,该液晶装置包括多个液晶单元,其中数据信号通过布置在多个像素(292)中的多个场效应晶体管提供给液晶单元 )。 该液晶装置包括:像素矩阵(240),包括多条源极线和多个耦合到多条源极线的像素; 以及源极线驱动电路,通过所述多条源极线耦合到所述像素矩阵(240),所述源极线驱动电路包括多个信号总线(231,232,233)和多个采样保持电路( (231,232,233)通过多条连接线(237,238,239)耦合到所述多条信号总线(231,232,233),其中所述信号总线之一与所述采样保持 电路与另一个信号总线与另一个采样保持电路之间的距离不同,并且用于将一个信号总线连接到一个采样保持电路的连接线的电阻基本相等 与用于将另一个信号总线连接到另一个采样保持电路的连接线的电阻相关联。

    A voltage regulator for a liquid crystal display
    9.
    发明公开
    A voltage regulator for a liquid crystal display 失效
    SpannungsreglerfüreineFlüssigkristallanzeige。

    公开(公告)号:EP0031678A1

    公开(公告)日:1981-07-08

    申请号:EP80304562.4

    申请日:1980-12-17

    IPC分类号: G05F3/20

    摘要: A voltage regulator circuit for a liquid crystal display in which compensation for the temperature dependent nature of the operating characteristics of the display is achieved using integrated circuit components. This is achieved by utilising the temperature-dependent characteristics of a forward bias PN junction diode (323, 324), the number of diodes providing selection of the temperature gradient of the output voltage. The PN junction diode may be formed, effectively, by an NPN transistor 305 with its base and collector terminals common. Alternatively the temperature dependent element may be formed as an integrated resistor (362, 366). The entire circuit is made as an integrated circuit, preferably using MOS technology, and adjustment of the temperature gradient of the output voltage and the voltage level thereof are provided for by techniques compatible with integrated circuit structures. In one embodiment a non-volatile memory device (461, 462) is used to control a set of analogue switches (421-424; 451, 454) in series with respective integrated resistors (401, 404; 431, 434). The output voltage is stabilised by providing a standard voltage source within an operational amplifier, for example utilising the difference in the threshold voltage between two MOSFET, so that the output voltage is not affected by variations in the supply voltage. In order to reduce the power consumption to a minimum the operational amplifiers may be cyclically activated by a periodic clock signal and a sample and hold circuit (396, 397) is provided.

    摘要翻译: 一种用于液晶显示器的电压调节器电路,其中使用集成电路部件实现对显示器的工作特性的温度依赖性质的补偿。 这可以通过利用自适应偏压PN结二极管(323,324)的温度依赖特性来实现,二极管的数量提供了对输出电压的温度梯度的选择。 PN结二极管可以由其基极和集电极端子共同的NPN晶体管305有效地​​形成。 或者,温度依赖元件可以形成为集成电阻器(362,366)。 整个电路作为集成电路,优选使用MOS技术制成,并且通过与集成电路结构兼容的技术来提供输出电压和其电压电平的温度梯度的调节。 在一个实施例中,使用非易失性存储器件(461,462)来控制与各个集成电阻器(401,404; 431,434)串联的一组模拟开关(421-424; 451,454)。 通过在运算放大器内提供标准电压源来稳定输出电压,例如利用两个MOSFET之间的阈值电压差,使得输出电压不受电源电压变化的影响。 为了将功耗降至最低,运算放大器可以由周期性的时钟信号循环地激活,并提供采样和保持电路(396,397)。