公开(公告)号：US11231595B2

公开(公告)日：2022-01-25

申请号：US16442975

申请日：2019-06-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaolong Li ,  Wei Qin ,  Kuanjun Peng ,  Xueling Gao ,  Fangzhen Zhang ,  Jintao Peng ,  Jinqian Wang ,  Miaomiao Yang ,  Shuang Sun ,  Chunfang Zhang ,  Shengnan Li

IPC: G02B30/56 ,  G02B30/25 ,  G02B5/124

Abstract: A semi-transparent semi-retroreflective film and an air display device are provided. The air display device includes: a first polarizer and a second polarizer assembled with each other to form a cell; a semi-transparent semi-reflective structure and a semi-transparent semi-retroreflective film disposed between the first polarizer and the second polarizer; a first ¼ wave plate disposed at a side of the air display device adjacent to the first polarizer; and a second ¼ wave plate disposed between the semi-transparent semi-reflective structure and the semi-transparent semi-retroreflective film. The air display device is configured such that polarized light incident from the first polarizer, after being processed by an internal optical path of the air display device, exits from the second polarizer to form an air image at a side of the air display device away from the first polarizer.

公开(公告)号：US20210327357A1

公开(公告)日：2021-10-21

申请号：US17271776

申请日：2020-07-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weixing Liu ,  Tieshi Wang ,  Zhiqiang Xu ,  Shengnan Li ,  Wanpeng Teng ,  Chunfang Zhang ,  Xiaolong Li ,  Wei Qin ,  Kai Guo ,  Kuanjun Peng

IPC: G09G3/3258 ,  H01L27/32 ,  H01L51/50

Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.

公开(公告)号：US11138923B2

公开(公告)日：2021-10-05

申请号：US16891124

申请日：2020-06-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shengnan Li ,  Wei Qin ,  Tieshi Wang ,  Weixing Liu ,  Chunfang Zhang ,  Wanpeng Teng ,  Dongni Liu

IPC: G09G3/32

Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.

公开(公告)号：US20210166607A1

公开(公告)日：2021-06-03

申请号：US16944973

申请日：2020-07-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shengnan LI ,  Wei Qin ,  Tieshi Wang ,  Xiaolong Li ,  Weixing Liu ,  Kuanjun Peng

IPC: G09G3/20 ,  G09G3/3266

Abstract: Disclosed are a method for driving a silicon-based driving back plate and a display apparatus. The method includes: acquiring a watch position of a user on the silicon-based driving back plate within one frame time; determining a watch region of the user on the silicon-based driving back plate according to the watch position; and controlling a sum of an analog modulation bit for analog scanning charging and a digital modulation bit for digital scanning charging performed on each row of pixels in the watch region to be greater than a sum of an analog modulation bit for analog scanning charging and a digital modulation bit for digital scanning charging performed on each row of pixels in a non-watch region.

公开(公告)号：US11024231B2

公开(公告)日：2021-06-01

申请号：US16631777

申请日：2019-08-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Kuanjun Peng ,  Wei Qin ,  Wanpeng Teng

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A pixel driving circuit is provided. The pixel driving circuit includes an initialization circuit, a driving circuit, and a first light-emitting control circuit. A first terminal of the driving circuit is coupled to a power voltage terminal, a second terminal of the driving circuit is coupled to a light-emitting element via the first light-emitting control circuit. The initialization circuit is configured to write an initialization voltage to a control terminal of the driving circuit under control of an initialization control signal input from an initialization control line, so that the driving circuit brings a connection between the first and second terminals into a conducting state under control of the control terminal. The first light-emitting control circuit is configured to bring a connection between the second terminal and the light-emitting element into a conducting state under control of a first light-emitting control signal input from a first light-emitting control line.

公开(公告)号：US10962825B2

公开(公告)日：2021-03-30

申请号：US16429841

申请日：2019-06-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Qin ,  Kuanjun Peng ,  Xiaolong Li ,  Tieshi Wang ,  Xueling Gao ,  Jintao Peng ,  Shengnan Li

IPC: G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.

公开(公告)号：US10937368B2

公开(公告)日：2021-03-02

申请号：US16613273

申请日：2019-03-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jintao Peng ,  Kuanjun Peng ,  Wei Qin ,  Chengchung Yang ,  Wanpeng Teng ,  Zhiqiang Xu ,  Xueling Gao

IPC: G09G3/3258

Abstract: A voltage compensation method, a voltage compensation device, a display device and a computer-readable storage medium are provided. The voltage compensation method includes: determining a first voltage of a target pixel in a first image; determining a second voltage of the target pixel in a second image, where the second image is switched from the first image; determining a voltage compensation value based on the first voltage and the second voltage; an determining a transition voltage based on the voltage compensation value and the second voltage, and compensating the second voltage by the transition voltage; where a gray-level of the target pixel in the first image is greater than a gray-level of the target pixel in the second image, the transition voltage is a driving voltage of the target pixel between the first voltage and the second voltage.

公开(公告)号：US20200319521A1

公开(公告)日：2020-10-08

申请号：US16956066

申请日：2019-10-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wei Qin ,  Xiaolong Li ,  Tieshi Wang ,  Jintao Peng ,  Xueling Gao ,  Yanan Niu ,  Kuanjun Peng ,  Shengnan Li

IPC: G02F1/155 ,  G02F1/29 ,  G02F1/13357 ,  G02F1/1335

Abstract: A display panel, a method for preparing a display panel and a method for adjusting an intensity of ambient light reflected on a display panel are provided in embodiments of the disclosure. The display panel includes: a base substrate; a plurality of sub-pixel units (20) on the base substrate comprising a plurality of light emitting portions respectively; an electrochromic assembly on a light-emergent side of the plurality of light emitting portions; and a light intensity detector configured to detect an incident intensity of ambient light, and the electrochromic assembly comprises a plurality of electrochromic portions covering the plurality of light emitting portions, respectively; and transmittance of the plurality of electrochromic portions for ambient light varies with a change in the incident intensity of ambient light.

公开(公告)号：US10755637B2

公开(公告)日：2020-08-25

申请号：US16251903

申请日：2019-01-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang ,  Kuanjun Peng ,  Wei Qin ,  Zhiqiang Xu ,  Yan Wei

IPC: G09G3/3233

Abstract: A display method includes: determining whether there is a dynamic part in a current frame of picture, according to image data of a previous frame of picture and the current frame of picture; in a case where there is no dynamic part in the current frame of picture, in a display stage of the current frame of picture, providing a first light emitting control signal being always at an effective electric level state to each of pixel units of a display panel; in a case where there is a dynamic part in the current frame of picture, in the display stage of the current frame of picture, providing a second light emitting control signal, including a part at an effective electric level state and a part at a non-effective electric level state, to pixel units corresponding to at least a part of the dynamic part.

公开(公告)号：US10209836B2

公开(公告)日：2019-02-19

申请号：US15122737

申请日：2015-12-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Wei Qin

IPC: G06F3/044 ,  G09G3/36 ,  G02F1/1333

Abstract: The present disclosure provides a method for driving an array substrate for fingerprint recognition. The method includes sequentially sending a switch-on signal by a processing unit to each gate line row by row along the column direction, the switch-on signal being divided into a first phase and a second phase. In the first phase of each switch-on signal, sending a touch-driving signal to pixel electrodes corresponding to the gate line through a first data line in each data line group, receiving a touch-sensing signal through a second data line in each data line group, and constructing a fingerprint pattern based on touch-sensing signals. In the second phase of each switch-on signal, simultaneously sending display signals to the first data line and the second data line in the data line groups to charge subpixel units corresponding to the gate line for displaying an image.