公开(公告)号：US11758780B2

公开(公告)日：2023-09-12

申请号：US17273290

申请日：2020-05-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Pan Xu ,  Yicheng Lin ,  Ling Wang ,  Guoying Wang ,  Xing Zhang ,  Ying Han

IPC: H01L27/32 ,  H10K59/131 ,  G09G3/3233 ,  G09G3/3266 ,  G11C19/28 ,  H01L25/18

CPC classification number: H10K59/131 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2310/0286 ,  G11C19/287 ,  H01L25/18

Abstract: Provided are a display substrate and display apparatus. The display substrate includes a display region and non-display region; base substrate, driving structure layer and wiring layer. The driving structure layer located in the display region includes a first power supply line, data signal line and reference signal line extending along a first direction; the wiring layer located in the non-display region includes a first power supply wiring electrically connected to first power supply line and located on first side of the display region, a data wiring located on second side, different from the first side, of the display region, and a reference wiring located on second side of the display region. For the first power supply line, data signal line and reference signal line with the same length, resistance of first power supply line is greater than that of the data signal line and that of the reference signal line.

公开(公告)号：US11380259B2

公开(公告)日：2022-07-05

申请号：US16342725

申请日：2018-11-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Yicheng Lin

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: The preset disclosure relates to a pixel driving circuit, a pixel driving method, an array substrate and a display device. The pixel driving circuit includes a pixel driving unit and an optical detection unit. The pixel driving unit is configured to drive a light-emitting element included in a pixel unit to emit light. The optical detection unit includes a photoelectric conversion sub-circuit and a switch control sub-circuit. The photoelectric conversion sub-circuit is configured to receive light emitted from the light-emitting element, and convert the light into an electrical signal. The switch control sub-circuit is configured to output the electrical signal under control of a first scanning signal. The pixel driving unit is configured to adjust brightness of the light emitted from the light-emitting element according to the electrical signal.

公开(公告)号：US11296299B2

公开(公告)日：2022-04-05

申请号：US16757081

申请日：2019-09-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guoying Wang ,  Zhen Song ,  Yicheng Lin ,  Ling Wang ,  Pan Xu

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56 ,  G09G3/3208

Abstract: The present disclosure relates to a display panel, a display device, and a method of manufacturing the display panel. The display panel includes a first substrate and a second substrate opposite to each other, a bonding portion that bonds a first peripheral region of the first substrate and a second peripheral region of the second substrate, and a protrusion disposed on at least one of the first peripheral region of the first substrate and the second peripheral region of the second substrate, wherein the protrusion is embedded in the bonding portion.

公开(公告)号：US20220037615A1

公开(公告)日：2022-02-03

申请号：US17297088

申请日：2020-10-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Pan Xu ,  Yicheng Lin ,  Ling Wang ,  Guoying Wang ,  Ying Han ,  Xing Zhang

IPC: H01L51/52 ,  H01L51/56

Abstract: A display substrate, a manufacturing method thereof, and a display panel. The display substrate includes a base, a first electrode, a first auxiliary cathode, a second electrode and a second auxiliary cathode, a pixel definition layer and a cathode. The first and second electrodes are located in the display area and the first and second auxiliary cathodes are located in the non-emitting area. The orthogonal projections of the first auxiliary cathode and the second auxiliary cathode on the base are in a mesh structure. The pixel definition layer is at least located in the non-emitting area. The cathode at least covers the display area and the cathode is arranged on one side of the pixel definition layer far away from the base; wherein the cathode, the first auxiliary cathode and the second auxiliary cathode are electrically connected.

公开(公告)号：US11217160B2

公开(公告)日：2022-01-04

申请号：US16331673

申请日：2018-08-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Yicheng Lin ,  Baoxia Zhang ,  Ling Wang ,  Quanhu Li ,  Pan Xu

IPC: G09G3/3233

Abstract: A pixel circuit includes a data writing sub-circuit inputs a signal input via a second signal terminal to a compensating sub-circuit and a driving sub-circuit under control of a signal from a first signal terminal, the compensating sub-circuit compensates a threshold voltage of the driving sub-circuit according to a signal output from the data writing sub-circuit under control of a signal from a third signal terminal, a light-emitting control sub-circuit inputs a signal from a first voltage terminal to the driving sub-circuit and the compensating sub-circuit under control of a signal from a fourth signal terminal, the driving sub-circuit configured to generate and input a driving current to a light-emitting sub-circuit according to a signal output from the light-emitting control sub-circuit and a signal output from the data writing sub-circuit, and the light-emitting sub-circuit configured to emit light according to the driving current under control of a second voltage terminal.

公开(公告)号：US11094252B2

公开(公告)日：2021-08-17

申请号：US16616967

申请日：2018-06-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yicheng Lin ,  Yu Wang

IPC: G09G3/30 ,  G09G3/3233 ,  G09G3/3258

Abstract: The present application discloses a display-driving method and a display apparatus. The method includes performing an internal compensation to a driving transistor within a display-driving circuit for light-emission in a display-driving time per scan cycle and additionally performing an external compensation via an external-control-sub-circuit in a blanking time between two scan cycles. The method includes using the compensation-control sub-circuit to input a reference voltage to make a driving transistor in conduction state in s start period of the blanking time and increase a voltage level on a sense line associated with the display-driving circuit in an external-compensation period. The method further includes reading the voltage on the sense line at an end of the external-compensation period as a compensation voltage. Furthermore, the method includes using the external-control sub-circuit to correct a data voltage to be supplied to a data line based on the compensation voltage.

公开(公告)号：US20210225962A1

公开(公告)日：2021-07-22

申请号：US16632184

申请日：2018-11-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ling Wang ,  Xue Dong ,  Yicheng Lin ,  Cuili Gai ,  Pan Xu

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A display substrate includes a base substrate; and a plurality of light emitting brightness value detectors on the base substrate. Each of the plurality of light emitting brightness value detectors includes a first thin film transistor; a protection layer on a side of the first thin film transistor away from the base substrate; and a photosensor electrically connected to the first thin film transistor and configured to detect alight emitting brightness value. An orthographic projection of the protection layer on the base substrate covers an orthographic projection of at least a channel part of the first thin film transistor on the base substrate.

公开(公告)号：US20210225325A1

公开(公告)日：2021-07-22

申请号：US16959172

申请日：2019-12-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Mingi Chu ,  Yicheng Lin

IPC: G09G5/10 ,  G09G3/3225

Abstract: The present disclosure relates to a pixel compensation method and device, a storage medium, and a display screen, and belongs to the field of display technologies. The method includes: sensing a plurality of subpixels in a first target grayscale of a display screen by using a plurality of photosensitive units, to obtain an actual luminance value of each subpixel; determining a theoretical luminance value of each subpixel in the first target grayscale based on a compensation sensing model, where the compensation sensing model is used to record a correspondence between target grayscales and theoretical pixel data, and the theoretical pixel data includes a reference luminance value of each subpixel; and performing pixel compensation on each subpixel based on the actual luminance value of each subpixel and the theoretical luminance value of each subpixel.

公开(公告)号：US10977992B2

公开(公告)日：2021-04-13

申请号：US16624276

申请日：2018-11-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yicheng Lin ,  Yu Wang ,  Ling Wang ,  Pan Xu ,  Cuili Gai ,  Baoxia Zhang ,  Guang Yan ,  Dongfang Yang

IPC: G09G3/3233

Abstract: A driving compensation method for a pixel circuit includes: in a compensation phase of the pixel circuit, providing a preset signal to the control terminal of the driving transistor to write the preset signal to the control terminal of the driving transistor, to write internal loss voltage of the driving transistor to the first terminal of the driving transistor; wherein the compensation phase includes a first external compensation phase and a second external compensation phase; in the first external compensation phase, the preset signal is a sum of a reference signal and a threshold voltage of the driving transistor; in the second external compensation phase, the preset signal is the sum of the data signal and the threshold voltage of the driving transistor.

公开(公告)号：US20200381524A1

公开(公告)日：2020-12-03

申请号：US16613690

申请日：2019-05-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Pan Xu ,  Yicheng Lin ,  Cuili Gai ,  Ling Wang ,  Yongqian Li

IPC: H01L29/417 ,  H01L27/12 ,  H01L27/32 ,  H01L29/786 ,  H01L29/66

Abstract: Embodiments of the present disclosure provide a thin film transistor, a method of manufacturing the same, and a display device. The thin film transistor includes a metal conductive pattern layer, an interlayer insulating layer, and a metal oxide layer; and the metal conductive pattern layer includes: a light shielding pattern, a source signal line, and/or a drain signal line; the metal oxide layer includes: a source electrode, a drain electrode, and an active layer. An orthographic projection of the active layer on the base substrate has an overlapping region with that of the light shielding pattern; the source electrode extends through the interlayer insulating layer to connect to the source signal line, and/or the drain electrode extends through the interlayer insulating layer to connect to the drain signal line.