公开(公告)号：US09589493B2

公开(公告)日：2017-03-07

申请号：US14429820

申请日：2014-06-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Danna Song ,  Zhongyuan Wu

IPC: G09G3/20 ,  G09G3/32 ,  H01L27/32

CPC classification number: G09G3/2003 ,  G09G3/3208 ,  G09G2300/0452 ,  G09G2360/16 ,  H01L27/3213 ,  H01L27/3216

Abstract: An organic electroluminescent display device, a driving method thereof and a display device are provided. The organic electroluminescent display device comprises: a plurality of pixel units arranged in matrix, each of the pixel units comprising a plurality of sub-pixel units for displaying different colors, and in each row of the pixel units, two adjacent pixel units constituting a pixel unit group; and a sub-pixel unit for displaying white between the two adjacent pixel units in each pixel unit group. The area occupied by the sub-pixel unit for displaying white is greater than that occupied by any one sub-pixel unit in the pixel unit. The sub-pixel unit for displaying white is configured such that the luminance of emitted light thereof replaces the luminance of light emitted by one pixel unit of two adjacent pixel units in a frame according to a preset condition.

Abstract translation: 提供一种有机电致发光显示装置，其驱动方法和显示装置。 有机电致发光显示装置包括：矩阵排列的多个像素单元，每个像素单元包括用于显示不同颜色的多个子像素单元，并且在每行像素单元中，构成像素的两个相邻像素单元 单位组 以及用于在每个像素单元组中的两个相邻像素单元之间显示白色的子像素单元。 用于显示白色的子像素单元所占据的面积大于像素单元中的任何一个子像素单元所占据的面积。 用于显示白色的子像素单元被配置为使得其发射光的亮度根据预设条件替换帧中的两个相邻像素单元的一个像素单元发射的光的亮度。

公开(公告)号：US09583041B2

公开(公告)日：2017-02-28

申请号：US14429827

申请日：2014-08-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Zhongyuan Wu

IPC: G09G5/10 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/0626

Abstract: The present invention discloses a pixel circuit and a driving method thereof, a display panel, and a display device, so as to improve brightness uniformity. The pixel circuit in the present invention comprises a control sub-circuit, a compensation sub-circuit, a driving transistor and a light emitting device. The present invention enables the driving current that drives the light emitting device to emit light to be uncorrelated with the threshold voltage of the driving transistor, so as to improve display uniformity of the panel.

Abstract translation: 本发明公开了一种像素电路及其驱动方法，显示面板和显示装置，以提高亮度均匀性。 本发明中的像素电路包括控制子电路，补偿子电路，驱动晶体管和发光器件。 本发明使得驱动发光器件发光的驱动电流与驱动晶体管的阈值电压不相关，从而提高面板的显示均匀性。

公开(公告)号：US09570003B2

公开(公告)日：2017-02-14

申请号：US14342023

申请日：2013-04-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongyuan Wu ,  Danna Song

IPC: G09G3/32 ,  H03F3/26 ,  H03F3/45

Abstract: An external-compensation sensing circuit, sensing method, and display device. The circuit includes fully-differential operational amplifier, first capacitor, second capacitor and outputting circuit for amplifying induced current; negative input of the amplifier is connected to display screen, positive input thereof is connected to reference voltage, negative output thereof is connected to first control terminal of the outputting circuit, positive output thereof is connected to second control terminal of the outputting circuit; two terminals of the first capacitor are connected to the negative input of the amplifier and an input of the outputting circuit respectively; one terminal of the second capacitor is connected to the output of the outputting circuit and the other terminal is grounded. The invention enables the output voltage to respond rapidly by amplifying induced current with dual outputting stages in the sensing circuit to raise the speed of the external-compensation.

公开(公告)号：US09570000B2

公开(公告)日：2017-02-14

申请号：US14345625

申请日：2013-05-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Zhongyuan Wu

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0233

Abstract: The present disclosure relates to the field of organic light-emitting display, and provides a pixel circuit, a driving method thereof, an organic light-emitting display panel and a display apparatus, comprising a driving transistor, a first storage capacitor, a collecting unit, a writing unit and a light-emitting unit; wherein, the collecting unit is used for collecting the threshold voltage of the driving transistor and storing the threshold voltage into the first storage capacitor, under the control of the first scan signal; the writing unit is used for storing the data voltage inputted from the input terminal for the data voltage under the control of the second scan signal; and the light-emitting unit is used for emitting lights, driven by the data voltage and a voltage inputted from the input terminal for the controllable low voltage, under the control of the light-emitting control signal. Thus an organic light-emitting device is not affected by the threshold voltage shift of the driving transistor, which may enhance the image uniformity of the organic light-emitting display panel effectively, slow down the decay speed of an organic light-emitting device and ensure the uniformity and a constancy of brightness of the organic light-emitting display panel.

Abstract translation: 本公开涉及有机发光显示器的领域，并且提供一种像素电路，其驱动方法，有机发光显示面板和显示装置，包括驱动晶体管，第一存储电容器，收集单元 ，写入单元和发光单元; 其特征在于，所述收集单元用于在所述第一扫描信号的控制下收集所述驱动晶体管的阈值电压并将所述阈值电压存储到所述第一存储电容器中; 写入单元用于在第二扫描信号的控制下存储从数据电压输入端输入的数据电压; 并且发光单元用于在发光控制信号的控制下由数据电压和从输入端子输入的可控低电压的电压驱动的光。 因此，有机发光器件不受驱动晶体管的阈值电压偏移的影响，这有效地提高了有机发光显示面板的图像均匀性，从而减慢了有机发光器件的衰减速度并确保 有机发光显示面板的均匀性和亮度的恒定性。

公开(公告)号：US09536476B2

公开(公告)日：2017-01-03

申请号：US14415529

申请日：2014-04-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Kun Cao ,  Zhongyuan Wu ,  Liye Duan

IPC: G09G3/32 ,  G11C19/28

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0286 ,  G09G2320/0295 ,  G09G2320/043 ,  G11C19/28

Abstract: The gate driver circuit is connected to a row of pixel unit, each includes a pixel driving module and a light-emitting device connected to each other, the pixel driving module including a driving transistor, a driving module and a compensating module, the compensating module is connected to a first row scanning signal, and the driving module is connected to a second row scanning signal and a driving voltage. The gate driver circuit further includes a row pixel controlling unit configured to provide the first row scanning signal to the compensating module and provide the second row scanning signal and the driving voltage to the driving module, so as to control the compensating module to compensate for a threshold voltage of the driving transistor and control the driving module to drive the light-emitting device.

Abstract translation: 栅极驱动电路连接到一行像素单元，每个像素单元包括彼此连接的像素驱动模块和发光器件，像素驱动模块包括驱动晶体管，驱动模块和补偿模块，补偿模块 连接到第一行扫描信号，并且驱动模块连接到第二行扫描信号和驱动电压。 栅极驱动器电路还包括行像素控制单元，被配置为将第一行扫描信号提供给补偿模块，并将第二行扫描信号和驱动电压提供给驱动模块，以便控制补偿模块以补偿 驱动晶体管的阈值电压，并控制驱动模块来驱动发光器件。

公开(公告)号：US09514683B2

公开(公告)日：2016-12-06

申请号：US14415082

申请日：2014-05-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Kun Cao ,  Zhongyuan Wu ,  Liye Duan

IPC: G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/3225 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2300/0871 ,  G09G2310/0286 ,  G09G2320/0233 ,  G09G2320/045

Abstract: The gate driving circuit according to the present disclosure may be connected to a row pixel unit which includes a row pixel driving module and a light emitting element connected to each other, the row pixel driving module including a driving transistor, a driving module and a compensation module, the compensation module being connected with a gate scanning signal and the driving module being connected with a driving level. The gate driving circuit may further include a row pixel control unit, which is configured to provide the gate scanning signal to the compensation module and provide the driving level to the driving module, so as to control the compensation module to compensate for a threshold voltage of the driving transistor and control the driving module to drive the light emitting element.

Abstract translation: 根据本公开的门驱动电路可以连接到包括行像素驱动模块和彼此连接的发光元件的行像素单元，行像素驱动模块包括驱动晶体管，驱动模块和补偿 模块，所述补偿模块与门扫描信号连接，并且所述驱动模块与驱动电平连接。 栅极驱动电路还可以包括行像素控制单元，其被配置为向补偿模块提供栅极扫描信号并向驱动模块提供驱动电平，以便控制补偿模块以补偿阈值电压 驱动晶体管并控制驱动模块来驱动发光元件。

公开(公告)号：US09319032B2

公开(公告)日：2016-04-19

申请号：US14416821

申请日：2014-04-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liye Duan ,  Lirong Wang ,  Zhongyuan Wu

IPC: H03K4/08 ,  H03K4/48 ,  H03K4/90 ,  H03K5/01

CPC classification number: H03K4/48 ,  G09G3/20 ,  G09G2300/0408 ,  G09G2310/0259 ,  G09G2310/0264 ,  G09G2310/066 ,  H03K4/026 ,  H03K4/90

Abstract: A ramp signal generating circuit and ramp signal generator, an array substrate and a display apparatus. The ramp signal generating circuit comprises a first shift register (11), a second shift register possessing a bidirectional scanning function (12), a voltage decreasing unit (13) and a sampling unit (14); the voltage decreasing unit (13) is connected to a power supply input terminal and a ground terminal and is configured to continuously decrease a voltage inputted from the power supply input terminal stage by stage; the first shift register (11) is connected to the voltage decreasing unit (13) and is configured to control the voltage decreasing unit (13) to output voltages which are decreased continuously stage by stage; the sampling unit (14) has an output terminal and is connected to the voltage decreasing unit (13); the second shift register (12) is connected to the sampling unit (14) and is configured to control, through bidirectional scanning, the sampling unit (13) to sample and output the voltages which are decreased continuously stage by stage by the voltage decreasing unit (13). Such ramp signal generating circuit is capable of reducing area of the ramp signal generating circuit and improving linearity of ramp signal.

Abstract translation: 斜坡信号发生电路和斜坡信号发生器，阵列基板和显示装置。 斜坡信号发生电路包括第一移位寄存器（11），具有双向扫描功能的第二移位寄存器（12），降压单元（13）和采样单元（14）; 电压降低单元（13）连接到电源输入端子和接地端子，并且被配置为逐级地连续地降低从电源输入端子输入的电压; 第一移位寄存器（11）连接到降压单元（13），并且被配置为控制电压降低单元（13）输出逐级逐渐减小的电压; 采样单元（14）具有输出端子，并连接到降压单元（13）; 第二移位寄存器（12）连接到采样单元（14），并且被配置为通过双向扫描来控制采样单元（13）对由电压降低单元逐级逐级地降低的电压进行采样和输出 （13）。 这种斜坡信号发生电路能够减小斜坡信号发生电路的面积并提高斜坡信号的线性度。

公开(公告)号：US08964932B2

公开(公告)日：2015-02-24

申请号：US13995498

申请日：2012-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhongyuan Wu ,  Liye Duan

IPC: G11C19/00 ,  G09G3/36 ,  G09G3/20 ,  G11C19/28 ,  G09G3/32

CPC classification number: G09G3/3648 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0417 ,  G09G2310/061 ,  G11C19/28

Abstract: A shift register, comprising a plurality of shift register sub-units connected in cascade, each of the plurality of shift register sub-units comprising first to third TFTs, an eleventh TFT, a first capacitor and a first reset control module for controlling the second TFT to be turned on or off. Besides the shift register sub-unit at a first stage, for each of the shift register sub-units at other stages, the second TFT gate control terminal thereof is connected to the third TFT gate control terminal of the shift register sub-unit at a previous stage. Accordingly, a gate driving circuit comprising the shift register and a display comprising the gate driving circuit are provided. Compared with the prior art, reliability of the shift register is highly improved and area occupied by the shift register is smaller.

Abstract translation: 一种移位寄存器，包括级联连接的多个移位寄存器子单元，所述多个移位寄存器子单元中的每一个包括第一至第三TFT，第十一TFT，第一电容器和第一复位控制模块，用于控制第二 TFT打开或关闭。 除了第一级的移位寄存器子单元，对于其他级的移位寄存器子单元，其第二TFT栅极控制端子连接到移位寄存器子单元的第三TFT栅极控制端子 前一阶段 因此，提供了包括移位寄存器和包括栅极驱动电路的显示器的栅极驱动电路。 与现有技术相比，移位寄存器的可靠性大大提高，移位寄存器占用的面积更小。

公开(公告)号：US20150008841A1

公开(公告)日：2015-01-08

申请号：US14354779

申请日：2013-07-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongyuan Wu ,  Liye Duan

IPC: G09G3/32

CPC classification number: G09G3/325 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/045

Abstract: A sensing circuit for external compensation, a sensing method thereof and a display apparatus, the sensing circuit for external compensation comprises a differential amplifier (9), a first capacitor (4), a second capacitor (8) and an output voltage controlling circuit (10) for the first capacitor; a negative input terminal of the differential amplifier (9) is connected with a display panel (1), a positive input terminal thereof is connected with a reference voltage, and an output terminal thereof is connected with an output terminal of the output voltage controlling circuit (10) for the first capacitor; the output voltage controlling circuit (10) for the first capacitor is used for enabling an output voltage of the first capacitor (4) in a subsequent current integral stage to vary based on the reference voltage. The sensing circuit for external compensation, the sensing method thereof and the display apparatus according to embodiments of the present disclosure can store by using the capacitor an offset voltage of the amplifier in an initial stage to eliminate the differences in the voltage outputs caused by the offsets of the amplifiers among different channels and enhance the accuracy of the voltage output.

Abstract translation: 一种用于外部补偿的感测电路，其感测方法和显示装置，用于外部补偿的感测电路包括差分放大器（9），第一电容器（4），第二电容器（8）和输出电压控制电路 10）用于第一电容器; 差分放大器（9）的负输入端与显示面板（1）连接，其正输入端与参考电压连接，其输出端与输出电压控制电路的输出端 （10）用于第一电容器; 用于第一电容器的输出电压控制电路（10）用于使随后的电流积分级中的第一电容器（4）的输出电压能够基于参考电压而变化。 用于外部补偿的感测电路，其感测方法和根据本公开的实施例的显示装置可以通过在初始阶段中使用电容器放大放大器的偏移电压来存储以消除由偏移引起的电压输出的差异 的放大器，并提高电压输出的精度。

公开(公告)号：US20140093028A1

公开(公告)日：2014-04-03

申请号：US13995313

申请日：2012-12-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongyuan Wu

IPC: G11C19/28

CPC classification number: G11C19/28 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2330/021

Abstract: The present disclosure relates to a shift register unit and a driving method thereof, a shift register and a display apparatus. The shift register unit includes a carry signal output terminal(CA(n)); a driving signal output terminal(OUT(n)); a staged output module(33) connected to the pulling-up node(PU), the pulling-down node(PD), the carry signal output terminal(CA(n)) and the driving signal output terminal(OUT(n)), respectively, for outputting a carry signal and a driving signal in stages so that the driving signal maintains a high level in the evaluating phase and a low level in the resetting phase; a pulling-up node level maintaining module(34) for, in the evaluating phase, maintaining the level at the pulling-up node(PU) at a high level via the first output control module(31) so that the driving signal maintains the high level. It removes the effect of the leakage current of the depletion type TFT on the shift register by using staged output and maintaining the pulling-up node level, which increases stability and reliability thereof and decreases power consumption.

Abstract translation: 本发明涉及移位寄存器单元及其驱动方法，移位寄存器和显示装置。 移位寄存器单元包括进位信号输出端（CA（n））; 驱动信号输出端（OUT（n））; 连接到上拉节点（PU），下拉节点（PD），进位信号输出端子（CA（n））和驱动信号输出端子（OUT（n））的分段输出模块（33） ，用于分级地输出进位信号和驱动信号，使得驱动信号在评估阶段保持高电平，并在复位阶段保持低电平; 一个提升节点级维持模块（34），用于在评估阶段经由第一输出控制模块（31）将提升节点（PU）处的电平维持在高电平，使得驱动信号维持 高水平。 通过使用分段输出并维持上拉节点电平，消除了耗尽型TFT的漏电流对移位寄存器的影响，提高了其稳定性和可靠性，降低了功耗。