公开(公告)号：US20180231831A1

公开(公告)日：2018-08-16

申请号：US15571918

申请日：2017-05-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can WANG ,  Yafeng YANG ,  Jian GAO ,  Can ZHANG ,  Wei WANG ,  Jifeng TAN ,  Xinli MA

IPC: G02F1/1335

CPC classification number: G02F1/133526 ,  G02F1/133514 ,  G02F1/29

Abstract: A display panel and a display device are disclosed. The display panel includes a flat display substrate and optical devices. The optical devices are arranged on a display surface of the flat display substrate, and light emitted through the display surface of the flat display substrate passes through the optical devices and forms an image in a curved surface.

公开(公告)号：US20180164472A1

公开(公告)日：2018-06-14

申请号：US15554511

申请日：2017-02-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian GAO ,  Xiaochuan CHEN ,  Yafeng YANG ,  Jifeng TAN ,  Pengcheng LU ,  Qian WANG ,  Can ZHANG ,  Can WANG ,  Xinli MA ,  Wei WANG

IPC: G02B3/00 ,  G02F1/1335 ,  G09F9/30

CPC classification number: G02B3/0056 ,  G02B3/0043 ,  G02F1/1335 ,  G02F1/133526 ,  G09F9/30

Abstract: A virtual curved surface display panel and a display device are provided. The virtual curved surface display panel includes a flat display panel having a plurality of pixels arranged in a matrix, and an array of convex lenses arranged on a light exit surface of the flat display panel. The array of convex lenses makes a track of image distances of the pixels form a curved surface. By adjusting the focal lengths of the lenses, the image distances of the pixels in the flat display panel can be various. The images of the pixels are then distributed on a curved surface. A visual effect of a virtual curved surface can be achieved with a flat display panel, improving the effect of visual impact.

公开(公告)号：US20240363599A1

公开(公告)日：2024-10-31

申请号：US18681521

申请日：2022-08-17

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can WANG ,  Qi QI ,  Wei LI ,  Can ZHANG ,  Minghua XUAN ,  Jinfei NIU ,  Jingjing ZHANG

IPC: H01L25/075 ,  H01L21/683 ,  H01L33/00 ,  H01L33/06 ,  H01L33/42 ,  H01L33/44 ,  H01L33/50 ,  H01L33/52 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L21/6835 ,  H01L33/0093 ,  H01L33/06 ,  H01L33/42 ,  H01L33/44 ,  H01L33/50 ,  H01L33/52 ,  H01L33/58 ,  H01L33/62 ,  H01L2221/68354 ,  H01L2221/68363 ,  H01L2221/68386 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0058 ,  H01L2933/0066 ,  H01L2933/0091

Abstract: A method for preparing the display substrate includes: providing a first substrate, and forming a light emitting chip layer on the first substrate to form a first backplane, wherein the light emitting chip layer includes: light emitting chips arranged in array, which are configured to emit light of a first color and include N sub-pixels, and N is a positive integer greater than or equal to 1; providing a second substrate, and forming a drive circuit layer on the second substrate to form a second backplane, wherein the drive circuit layer includes: connection electrodes arranged in an array, and the light emitting chips correspond to the connection electrodes one-by-one; transferring the first backplane from which the first substrate is peeled off to the second backplane; forming an optical film layer on a side of the light emitting chip layer away from the second backplane.

公开(公告)号：US20220406243A1

公开(公告)日：2022-12-22

申请号：US17418808

申请日：2020-12-28

Applicant: Beijing BOE Display Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Ning CONG ,  Minghua XUAN ,  Can ZHANG ,  Ming YANG ,  Can WANG ,  Lijun YUAN

IPC: G09G3/32 ,  G09G3/3233

Abstract: The present disclosure provides a pixel circuit, a method for driving the same, a display substrate, and a display device, which belong to the field of display technologies. The pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and adjust an electric potential of the second control node based on an electric potential of the second connection node. When the pixel circuit is driven, electric potential of each control signal can be controlled, such that influence of a threshold voltage of a transistor on an electric potential finally output to the second control node is relatively small, that is, influence of drifting of a threshold voltage on display uniformity is reduced. The display device according to the present disclosure achieves a good display effect.

公开(公告)号：US20220383800A1

公开(公告)日：2022-12-01

申请号：US17040988

申请日：2020-04-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ning CONG ,  Ming YANG ,  Han YUE ,  Can WANG ,  Can ZHANG ,  Jiao ZHAO ,  Minghua XUAN ,  Xiaochuan CHEN

IPC: G09G3/32

Abstract: The present disclosure discloses a pixel drive circuit and a display panel. The pixel drive circuit includes a Micro-LED, a cathode of which is grounded; a light-emitting control circuit connected with an anode of the Micro-LED and configured to control an emission time of the Micro-LED; a current control circuit connected with the light-emitting control circuit and configured to output a preset current to the light-emitting control circuit to control the Micro-LED to work under a set current density, and luminance efficiency of the Micro-LED under the set current density is greater than a set threshold value.

公开(公告)号：US20220343835A1

公开(公告)日：2022-10-27

申请号：US17433244

申请日：2021-02-07

Applicant: Beijing BOE Display Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Ning CONG ,  Minghua XUAN ,  Can ZHANG ,  Ming YANG ,  Can WANG ,  Angran ZHANG ,  Hao CHEN ,  Xiaochuan CHEN

IPC: G09G3/32

Abstract: A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.

公开(公告)号：US20220139322A1

公开(公告)日：2022-05-05

申请号：US16956200

申请日：2019-08-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can WANG ,  Han YUE ,  Can ZHANG ,  Minghua XUAN ,  Ming YANG

IPC: G09G3/3241

Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display apparatus. The pixel circuit includes a pixel sub-circuit. The pixel sub-circuit includes a first adjusting circuit and a second adjusting circuit. The first adjusting circuit is configured to receive a first data signal and a light emitting control signal to control a magnitude of a driving current used for driving a light emitting element to emit light; the second adjusting circuit is configured to receive a second data signal and a time control signal to control a time duration in which the driving current is applied to the light emitting element; and the time control signal changes within a time period during which the light emitting control signal allows the driving current to be generated. The pixel circuit can control the time duration in which the driving current is applied to the light emitting element, so that the light emitting element can realize display of various grayscales by controlling the light emitting time of the light emitting element, on the premise that the light emitting element operates at a relatively high current density.

公开(公告)号：US20220139297A1

公开(公告)日：2022-05-05

申请号：US16955171

申请日：2019-07-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ming YANG ,  Ning CONG ,  Minghua XUAN ,  Can ZHANG ,  Xiaochuan CHEN ,  Can WANG ,  Han YUE ,  Jiao ZHAO ,  Angran ZHANG

IPC: G09G3/32

Abstract: Embodiments of the present disclosure disclose a drive circuit, a driving method thereof and a display device. The drive circuit includes: a current control circuit, configured to provide a drive signal to a device to be driven according to a signal of a data signal terminal; a first transistor, electrically connected between the current control circuit and the device to be driven; and a duration control circuit, electrically connected with a gate of the first transistor, and configured to provide a light-emitting duration modulating signal to the gate of the first transistor according to a combined action of signals of a scanning signal terminal, a light-emitting control signal terminal, a duration control signal terminal and a reference voltage signal terminal, to control a conduction duration of the first transistor.

公开(公告)号：US20220029128A1

公开(公告)日：2022-01-27

申请号：US17332834

申请日：2021-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Renquan GU ,  Can WANG ,  Haitao HUANG ,  Libo WANG ,  Yang YUE ,  Qi YAO

IPC: H01L51/52 ,  G02F1/1335 ,  H01L51/56

Abstract: The present disclosure relates to the field of display technology, and provides a display substrate and a method for manufacturing the same. The display substrate includes: a light-emitting substrate comprising a plurality of light-emitting regions which are arranged in parallel with a light propagation direction, and each light-emitting region is provided with a light-emitting layer; a defining layer provided on the light-emitting substrate and including a plurality of hollow-out portions, and the hollow-out portions correspond to the light-emitting regions one to one; and a plurality of micro-lenses provided in the hollow-out portions in a one-to-one correspondence manner. With the present disclosure, it is possible to prevent damage to an underlying light-emitting substrate when forming the micro-lenses and to enhance the stability of the micro-lenses.

公开(公告)号：US20220005403A1

公开(公告)日：2022-01-06

申请号：US16475086

申请日：2019-01-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han YUE ,  Xiaochuan CHEN ,  Minghua XUAN ,  Can WANG ,  Can ZHANG ,  Ning CONG ,  Ming YANG

IPC: G09G3/32

Abstract: A pixel circuit includes a current control circuit, a time control circuit, and a light-emitting component, which are electrically coupled to one another in series along a common passage path of a driving current. The current control circuit is configured to control an intensity of the driving current according to a display data signal received thereby. The time control circuit is configured to control a passage time of the driving current according to a time data signal and a switch control signal received thereby. The light-emitting component is configured to emit a light according to the intensity and the passage time of the driving current.