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    • 9. 发明申请
    • PLANAR LIGHT EMITTING DEVICE
    • 平面发光装置
    • US20120126711A1
    • 2012-05-24
    • US13383785
    • 2010-11-24
    • Shinji SuminoeMitsuru HinenoMasato Onoue
    • Shinji SuminoeMitsuru HinenoMasato Onoue
    • H05B37/02
    • H01L25/0753G02F1/133603G02F2001/133613H01L2924/0002H01L2924/00
    • A sensor circuit or a display apparatus from which a highly accurate sensor output can be obtained includes a photodiode, a capacitor that is connected to the photodiode via an accumulation node and accumulates charges according to an electric current in the photodiode; a sensor switching element transistor that causes the accumulation node and an output line to be conductive with respect to each other in response to a readout signal and outputs an output signal according to the potential of the accumulation node to the output line; a variable capacitor that is provided between the accumulation node and an input electrode, and whose capacitance varies when a pressure is applied by a touching operation; and a control switching element transistor to which a control signal for switching conduction and non-conduction between the variable capacitor and the accumulation node is input.
    • 可以从其获得高精度传感器输出的传感器电路或显示装置包括光电二极管,经由累积节点连接到光电二极管的电容器,并根据光电二极管中的电流累积电荷; 传感器开关元件晶体管,其响应于读出信号使所述累积节点和输出线相对于彼此导电,并且根据所述累积节点的电位将输出信号输出到所述输出线; 设置在所述蓄积节点和输入电极之间的可变电容器,并且当通过触摸操作施加压力时,其电容变化; 以及输入用于切换可变电容器和累积节点之间的导通和非导通的控制信号的控制开关元件晶体管。