Pixel circuit, method for driving the same and display panel capable of storing data voltage

    公开(公告)号:US10223990B2

    公开(公告)日:2019-03-05

    申请号:US15513983

    申请日:2016-07-28

    Inventor: Wen Tan Jia Chen

    Abstract: The present disclosure provides a pixel circuit, a method for driving the pixel circuit and a display panel including the pixel circuit. The pixel circuit comprises a data writing unit, a voltage tracking unit, a voltage storage unit and a liquid crystal capacitor. The data writing unit is constructed to transfer a data voltage on a data line to the voltage storage unit and the voltage tracking unit when the pixel circuit is in a normal display mode. The voltage storage unit is constructed to store the data voltage when the pixel circuit is in the normal display mode and transfer the data voltage or an adjustment voltage to the input terminal of the voltage tracking unit when the pixel circuit is in a static display mode. The voltage tracking unit is constructed to output a data output voltage based on the data voltage or the adjustment voltage, such that the liquid crystal capacitor generates a corresponding liquid crystal deflection field.

    Memory in pixel, data storage method in pixel and pixel array

    公开(公告)号:US10147367B2

    公开(公告)日:2018-12-04

    申请号:US15561886

    申请日:2017-04-01

    Inventor: Wen Tan Jia Chen

    Abstract: A memory in pixel, a data storage method, and a pixel array. The memory in pixel includes a data input unit, configured to read data voltage on a data line onto a first data latching terminal and a second data latching terminal; a first data latching circuit, configured to hold a level of the first data latching terminal; a second data latching circuit, configured to hold a level of the second data latching terminal; a drive control circuit, configured to enable a level of a drive node to be opposite to that of the first data latching terminal; and a drive circuit, configured to output a third power source voltage of a third power source voltage terminal to a output terminal and output a fourth power source voltage of a fourth power source voltage terminal to the output terminal.

    Shift register unit, gate driving circuit and display device

    公开(公告)号:US09613578B2

    公开(公告)日:2017-04-04

    申请号:US14422316

    申请日:2013-08-14

    Inventor: Wen Tan Xiaojing Qi

    Abstract: The shift register unit according to the present disclosure may include a latch module, and at least two levels of output control modules connected with the latch module. Input ends of the latch module may be connected with a start signal and a clock signal respectively, an output end of the latch module may be connected with input ends of the at least two levels of output control modules, and the latch module may be configured to latch the start signal according to the clock signal inputted. Input ends of the output control modules may be connected with clock signals, the output control modules may be configured to output gate line driving signals according to the clock signals. All the clock signals may be inputted sequentially to the latch module and each level of output control modules in accordance with a timing sequence.

    Shift register and the driving method thereof, gate driving apparatus and display device
    27.
    发明授权
    Shift register and the driving method thereof, gate driving apparatus and display device 有权
    移位寄存器及其驱动方法,门驱动装置和显示装置

    公开(公告)号:US09589537B2

    公开(公告)日:2017-03-07

    申请号:US14708727

    申请日:2015-05-11

    Abstract: The present invention provides a shift register, a driving method, a gate driving apparatus and a display apparatus. Said shift register comprises a pull-up unit, a reset unit, a pull-down unit and a signal output; the pull-up unit is connected to said signal output and pulls up an output signal; the reset unit is connected to a control end of said pull-up unit and said signal output respectively and resets the potential of the control end of said pull-up unit after said output signal is at high level; the pull-down unit is connected to a control end of said pull-up unit and said signal output respectively and pulls down the potential of the control end of said pull-up unit and said output signal after said reset unit has reset the potential of the control end of said pull-up unit, so that said pull-up unit switches off.

    Abstract translation: 本发明提供一种移位寄存器,驱动方法,门驱动装置和显示装置。 所述移位寄存器包括上拉单元,复位单元,下拉单元和信号输出; 上拉单元连接到所述信号输出并拉出输出信号; 复位单元分别连接到所述上拉单元的控制端和所述信号输出端,并且在所述输出信号处于高电平之后复位所述上拉单元的控制端的电位; 下拉单元分别连接到所述上拉单元的控制端和所述信号输出端,并在所述复位单元复位所述上拉单元的控制端和所述输出信号的电位 所述上拉单元的控制端,使得所述上拉单元断开。

    Active matrix organic light emitting diode pixel unit circuit and display panel
    28.
    发明授权
    Active matrix organic light emitting diode pixel unit circuit and display panel 有权
    有源矩阵有机发光二极管像素单元电路和显示面板

    公开(公告)号:US09530354B2

    公开(公告)日:2016-12-27

    申请号:US14235319

    申请日:2013-10-09

    Abstract: The present invention provides an active matrix organic light emitting diode, AMOLED pixel unit circuit and a display panel for integrating a touch screen circuit into the AMOLED pixel unit circuit, and manufacturing an AMOLED display panel having the functionality of a touch screen. The AMOLED pixel unit circuit comprises a driving module, configured to amplify a induction signal generated by a touch sensing module, output the induction signal through a induction signal output module, and drive a light emitting module; the light emitting control module, configured to control the light emitting module to emit light; a threshold compensation module, configured to compensate a threshold voltage of the driving module; a charging module, configured to charge the threshold compensation module; the touch sensing module, configured to generate the induction signal and output the induction signal to the driving module; and the induction signal output module, configured to output the induction signal amplified by the driving module.

    Abstract translation: 本发明提供一种有源矩阵有机发光二极管,AMOLED像素单元电路和用于将触摸屏电路集成到AMOLED像素单元电路中的显示面板,以及制造具有触摸屏功能的AMOLED显示面板。 AMOLED像素单元电路包括:驱动模块,被配置为放大由触摸感测模块产生的感应信号,通过感应信号输出模块输出感应信号,并驱动发光模块; 所述发光控制模块被配置为控制所述发光模块发光; 阈值补偿模块,被配置为补偿所述驱动模块的阈值电压; 充电模块,被配置为对所述阈值补偿模块进行充电; 所述触摸感测模块被配置为产生所述感应信号并将所述感应信号输出到所述驱动模块; 感应信号输出模块,被配置为输出由驱动模块放大的感应信号。

    Pixel driving circuit, display device and pixel driving method
    30.
    发明授权
    Pixel driving circuit, display device and pixel driving method 有权
    像素驱动电路,显示设备和像素驱动方法

    公开(公告)号:US09230479B2

    公开(公告)日:2016-01-05

    申请号:US14362114

    申请日:2013-12-06

    Inventor: Wen Tan Xiaojing Qi

    Abstract: The present invention provides a pixel driving circuit, a display device and a pixel driving method. In the pixel driving circuit, the control unit is connected with the data line, a first control line, a second control line, a first gate line and a second gate line; the first charging unit and the second charging unit are both connected with the control unit; a first electrode of the light emitting device is connected with the control unit and the second charging unit, and a second electrode of the light emitting device is connected with the second power supply terminal. According to the present invention, by providing two storage capacitors and improving the pre-charging manner, the gate of the driving transistor is provided with the data voltage lower than the operating voltage. The threshold voltage is stored into the first capacitor, thus the threshold voltage compensation is implemented.

    Abstract translation: 本发明提供一种像素驱动电路,显示装置和像素驱动方法。 在像素驱动电路中,控制单元与数据线,第一控制线,第二控制线,第一栅极线和第二栅极线连接; 第一充电单元和第二充电单元都与控制单元连接; 发光器件的第一电极与控制单元和第二充电单元连接,并且发光器件的第二电极与第二电源端子连接。 根据本发明,通过提供两个存储电容器并改善预充电方式,驱动晶体管的栅极被提供有低于工作电压的数据电压。 阈值电压被存储到第一电容器中,从而实现阈值电压补偿。

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