Method for addressing each column of a matrix type LCD panel
    8.
    发明授权
    Method for addressing each column of a matrix type LCD panel 失效
    用于寻址矩阵型LCD面板的每列的方法

    公开(公告)号:US5319381A

    公开(公告)日:1994-06-07

    申请号:US047360

    申请日:1993-04-19

    IPC分类号: G02F1/133 G09G3/20 G09G3/36

    摘要: Disclosed is a method for the addressing of each column of a matrix type LCD panel consisting in the production of a pulse to control a driver transistor of said column, said pulse having a duration determined by the value of the video signal sample at input, said pulse acting on the conduction state of said transistor to connect said column to a supply terminal where a voltage gradient develops. According to the method two pulse durations, the sum of which is predetermined, are alternated and, in order that a given value of a video signal sample may produce the same optical effect from one period to the next one, differentiated excitation voltages are applied to at least one of the electrodes sandwiching the liquid crystal layer, namely said column and its counter-electrode. Application notably to active matrix LCD panels.

    摘要翻译: 公开了一种用于寻址矩阵型LCD面板的每列的方法,该矩阵型LCD面板包括产生脉冲以控制所述列的驱动晶体管,所述脉冲具有由输入端的视频信号样本的值确定的持续时间, 脉冲作用于所述晶体管的导通状态,以将所述列连接到产生电压梯度的电源端。 根据该方法,其总和为预定的两个脉冲持续时间是交替的,为了使视频信号样本的给定值可以从一个周期到下一个周期产生相同的光学效应,将分化的激励电压施加到 夹着液晶层的电极中的至少一个,即所述柱及其对置电极。 主要应用于有源矩阵液晶面板。

    Light-emitting device with chromatic control
    10.
    发明授权
    Light-emitting device with chromatic control 失效
    带彩色控制的发光装置

    公开(公告)号:US07795575B2

    公开(公告)日:2010-09-14

    申请号:US12087592

    申请日:2007-01-29

    IPC分类号: F21V99/00

    摘要: The light-emitting device includes a base substrate and preferably three light-emitting diodes respectively associated with three primary colors and emitting a part of their signal in the direction of the base substrate. The device includes three chromatic photodetectors formed in the base substrate constituting a semiconducting substrate, and each arranged under an associated light-emitting diode. Each chromatic photodetector includes superposed first, second and third layers. The first layer and third layer have a first type of conductivity and the second layer has a second type of conductivity. The device includes a control component connected to the chromatic photodetectors and to the light-emitting diodes to control the global color of the light emitted by the device.

    摘要翻译: 发光装置包括基底,优选地分别与三原色相配合的三个发光二极管,并在基底基板的方向上发射它们的一部分信号。 该器件包括形成在构成半导体衬底的基底衬底中的三个彩色光电检测器,并且每个配置在相关联的发光二极管的下方。 每个彩色光电探测器包括叠加的第一,第二和第三层。 第一层和第三层具有第一类型的导电性,第二层具有第二类导电性。 该装置包括连接到彩色光电检测器和发光二极管以控制由该装置发射的光的全局颜色的控制部件。