公开(公告)号：US11508943B2

公开(公告)日：2022-11-22

申请号：US16605414

申请日：2019-04-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yongming Shi ,  Liye Duan ,  Chun Wang

IPC: H01L51/52 ,  H01L27/32 ,  H01L35/08 ,  H01L35/32

Abstract: The present application provides a pixel circuit, a display panel, and a temperature compensation method for a display panel. The display panel includes a plurality of pixel units. At least one of the plurality of pixel units includes: a display layer comprising a light emitting element; and a thermoelectric conversion layer comprising a thermoelectric element having a first terminal and a second terminal, wherein the first terminal is disposed adjacent to the light emitting element and in thermal contact with the light emitting element, and the second terminal is disposed away from the light emitting element. The thermoelectric element has a first signal terminal and a second signal terminal, and is configured to generate a temperature difference voltage signal between the first signal terminal and the second signal terminal according to a temperature difference between the first terminal and the second terminal.

公开(公告)号：US10886324B2

公开(公告)日：2021-01-05

申请号：US16388568

申请日：2019-04-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Kui Liang ,  Chiachiang Lin ,  Xiaohui Liu ,  Liye Duan ,  Chunqian Zhang ,  Mengjun Hou

IPC: H01L27/146 ,  H01L31/08

Abstract: A detection panel and a detection device are provided. The detection panel includes: a base substrate, a photoelectric conversion layer and a first insulating layer which are sequentially stacked on the base substrate; wherein the detection panel further comprises a plurality of interdigital electrodes located on a surface of a side of the first insulating layer away from the base substrate.

公开(公告)号：US10140918B2

公开(公告)日：2018-11-27

申请号：US14777831

申请日：2015-02-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Chen Song ,  Liye Duan

IPC: G09G5/00 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/3291

Abstract: An embodiment of the present disclosure provides an actively driven organic light-emitting display apparatus to eliminate a defect in which the current flowing through the lighting device in the actively driven organic light-emitting display apparatus is affected by the instable current caused by the instable threshold voltage of the drive transistor, so that the current flowing through the lighting device is accurate and make the brightness of the whole actively driven organic light-emitting display apparatus be even. The display apparatus comprises a light emitting device, a light emitting device drive unit, a first switch unit, a second switch unit, a current control unit and a resistor which constitute a feedback loop. An input terminal of the current control unit is input a data signal to control that the current of the light emitting device is only associated with the resistor, voltage of the input data signal and the supply voltage.

公开(公告)号：US09875690B2

公开(公告)日：2018-01-23

申请号：US14777808

申请日：2015-04-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lirong Wang ,  Liye Duan

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/30 ,  G09G5/10 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2320/0223 ,  G09G2320/0242 ,  G09G2320/045 ,  G09G2320/0646

Abstract: The present invention provides a pixel circuit, a display substrate and a display panel. The pixel circuit comprises a power supply terminal; a control thin film transistor; a drive thin film transistor; a storage capacitor; a light-emitting device, the pixel circuit further comprises a voltage division control module and a voltage division capacitor, the voltage division control module is used for charging the storage capacitor in the pre-charging phase of the pixel circuit, so that voltage of the gate of the drive thin film transistor becomes a reference voltage, and the voltage division control module is capable of outputting a low level to the second end of the storage capacitor in the compensation phase of the pixel circuit. A first end of the voltage division capacitor is connected to the first end of the storage capacitor, a second end thereof is connected to the cathode of the light-emitting device.

公开(公告)号：US20170124955A1

公开(公告)日：2017-05-04

申请号：US15101184

申请日：2015-09-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lirong Wang ,  Liye Duan

IPC: G09G3/3266 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/3225 ,  G09G2300/0408 ,  G09G2300/0819 ,  G09G2310/0267 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A scan driving circuit and a driving method thereof, an array substrate, and a display apparatus are disclosed. The scan driving circuit comprises: a first shift register (11) connected to one group of clock signals (CLKA) having a first clock cycle, and configured to output a first scanning signal (GA) progressively; a second shift register (12) connected to another group of clock signals (CLKB) having a second clock cycle, and configured to output a second scanning signal (GB) progressively; and a logic arithmetic device (13) connected to a first clock signal (CLK1) having a third clock cycle, connected to the first shift register (11) and the second shift register (12), and configured to output compensation signals (SC) of multiple rows; the compensation signal (SC) of any row has a wave shape the same as the first clock signal (CLK1) when a second scanning signal (GB) of a present row is at a first level, and has a wave shape the same as a first scanning signal (GA) of the present row when the second scanning signal (GB) of the present row is at a second level; and the third clock cycle is smaller than the second clock cycle. The scan driving circuit can be implemented by adding an appropriate circuit structure on the basis of the conventional GOA circuit, without manufacturing a driving chip on the external circuit board, so that the manufacturing process can be simplified, the process cost of products can be reduced, and integration level of the OLED panel can be raised.

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。