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    • 51. 发明授权
    • Liquid crystal display panel having integrated pressure sensing units
    • 具有集成压力感测单元的液晶显示面板
    • US09395835B2
    • 2016-07-19
    • US12484660
    • 2009-06-15
    • Sang-Yong NoSang-Youn HanYoung-Je Cho
    • Sang-Yong NoSang-Youn HanYoung-Je Cho
    • G06F3/041G02F1/1333G02F1/1345
    • G06F3/0412G02F1/13338G02F1/13454
    • Capacitively actuated touch sensor units are integrated between subpixel light emitters of a liquid crystal display panel. In one embodiment, a sensor unit is monolithically integrated on a same substrate as are a plurality of associated subpixel units and the sensor unit includes a variable capacitor and a reference capacitor connected to define a voltage splitting circuit having a split voltage generating node. The sensor unit also includes a sensing transistor operatively coupled to the split voltage generating node and a voltage resetting transistor operatively coupled to the split voltage generating node. In one embodiment, one plate of the variable capacitor is defined by a touchwise flexed portion of a common electrode of the display and an opposed plate is defined by a spaced apart facing electrode provided on a TFT array substrate of the liquid crystal display.
    • 电容式致动的触摸传感器单元集成在液晶显示面板的子像素发光体之间。 在一个实施例中,传感器单元单片集成在与多个相关联的子像素单元相同的衬底上,并且传感器单元包括可变电容器和连接到限定具有分压产生节点的分压电路的参考电容器。 传感器单元还包括可操作地耦合到分压产生节点的感测晶体管和可操作地耦合到分压产生节点的电压复位晶体管。 在一个实施例中,可变电容器的一个板由显示器的公共电极的触摸弯曲部分限定,相对的板由设置在液晶显示器的TFT阵列基板上的间隔开的面对电极限定。