公开(公告)号：US20230335036A1

公开(公告)日：2023-10-19

申请号：US18206715

申请日：2023-06-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lijun YUAN ,  Can ZHANG ,  Ning CONG ,  Wei LI ,  Can WANG ,  Jinfei NIU ,  Jingjing ZHANG ,  Minghua XUAN

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0426 ,  G09G2310/0278 ,  G09G2310/061

Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.

公开(公告)号：US20230162675A1

公开(公告)日：2023-05-25

申请号：US17761161

申请日：2020-12-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lijun YUAN ,  Ning CONG ,  Can WANG ,  Jinfei NIU ,  Minghua XUAN ,  Can ZHANG

IPC: G09G3/3233 ,  G11C19/28

CPC classification number: G09G3/3233 ,  G11C19/28 ,  G09G2380/00 ,  G09G2310/0286 ,  G09G2330/021 ,  G09G2370/18

Abstract: A display panel includes a substrate, a plurality of display units, a driving circuit and a gating circuit. Each display unit includes a plurality of pixel islands, and each pixel island includes a plurality of sub-pixels of a same color. The driving sub-circuit is configured to output driving signals. The gating circuit is coupled to the driving circuit, and is further coupled to sub-pixels of pixel islands in at least part of the plurality of display units. The gating circuit is configured to control a connection of the driving circuit to sub-pixels of pixel islands of at least one display unit in the at least part of the plurality of display units, so that the sub-pixels of the pixel islands of the at least one display unit are driven by at least one driving signal from the driving circuit to perform display.

公开(公告)号：US20220327996A1

公开(公告)日：2022-10-13

申请号：US17256504

申请日：2019-09-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3233

Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.

公开(公告)号：US20210358389A1

公开(公告)日：2021-11-18

申请号：US16605384

申请日：2019-03-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: A pixel driving circuit, a pixel driving method and a display device are provided. The pixel driving circuit includes a pixel sub-circuit and a power supply control sub-circuit, the pixel sub-circuit includes a first connection terminal, a second connection terminal and a light-emitting element, and is configured to respectively receive a first voltage and a second voltage to drive the light-emitting element to emit light. The power supply control sub-circuit is configured to, in a first state, control the first power supply terminal to provide the first voltage to the first connection terminal of the pixel sub-circuit, control the second power supply terminal to provide the second voltage to the second connection terminal of the pixel sub-circuit, and store energy; and in a second state, release the energy to the first connection terminal and the second connection terminal of the pixel sub-circuit to drive the light-emitting element to emit light.

公开(公告)号：US20210335213A1

公开(公告)日：2021-10-28

申请号：US16610007

申请日：2019-02-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: An array substrate including a plurality of pixel units arranged in a matrix is provided. Each pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel that emit light of different colors, the first sub-pixel has a lower luminous efficiency than the second and third sub-pixels. The array substrate further comprises a plurality of first gate lines and a plurality of second gate lines that correspond to respective rows of pixel units of the plurality of pixel units. The first sub-pixel in each row of pixel units of the plurality of pixel units is coupled to a first gate line of the plurality of first gate lines, and the second sub-pixel and the third sub-pixel in the row of pixel units of the plurality of pixel units are both coupled to a second gate line of the plurality of second gate lines.

公开(公告)号：US20210210548A1

公开(公告)日：2021-07-08

申请号：US17212158

申请日：2021-03-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming YANG ,  Can ZHANG ,  Minghua XUAN ,  Liang CHEN ,  Xiaochuan CHEN ,  Wenqing ZHAO

IPC: H01L27/15 ,  H01L33/62 ,  G09G3/32 ,  H01L33/38

Abstract: An array substrate is provided, including a substrate, wherein the substrate is provided with a plurality of electrodes and a plurality of first signal lines, each of the electrodes being correspondingly connected with a first signal line. In some examples, the first signal lines extend in the same direction. In some examples, at least two of the plurality of first signal lines are located in different layers of an insulating spacer from each other. In some examples, orthographic projections on the substrate of at least two of the first signal lines in the different layers at least partially overlap. Accordingly, a light field display device comprising the array substrate is also provided. The array substrate can reduce a light-emitting point size and increase a density distribution of light-emitting points.

公开(公告)号：US20210202644A1

公开(公告)日：2021-07-01

申请号：US16087002

申请日：2018-01-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can WANG ,  Can ZHANG

IPC: H01L27/32

Abstract: The present disclosure provides an array substrate, a method for fabricating the array substrate, a display panel, and a display device, wherein there is disposed a shielding layer insulated from each of anodes and capable of shielding an electric field between two adjacent pixels, so that when a pixel emits light, an electric field between an anode in the pixel emitting light and an anode in an adjacent pixel can be shielded. Thus, it is possible to avoid a coupling voltage at the anode in the adjacent pixel caused by the anode in the pixel emitting light under the coupling effect, thereby eliminating the interference with the pixel light emission from the coupling effect between the anodes in the two adjacent pixels, and improving the display effect.

公开(公告)号：US20210028225A1

公开(公告)日：2021-01-28

申请号：US16905933

申请日：2020-06-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can ZHANG

IPC: H01L27/15 ,  H01L33/62 ,  H01L33/40

Abstract: Provided are a light emitting diode, a display substrate and a transfer method. The transfer method includes: preparing a transfer substrate and the display substrate respectively, wherein the transfer substrate includes a plurality of light emitting diodes arranged in a matrix; aligning the transfer substrate with the display substrate, wherein first magnetic layers of the light emitting diodes on the transfer substrate correspond to second magnetic layers of the sub-pixels on the display substrate one by one; and driving the transfer substrate to approach the display substrate, so that the light emitting diodes on the transfer substrate are positioned to fall onto the sub-pixels of the display substrate by action of magnetic attraction forces generated by the first magnetic layers and the second magnetic layers.

公开(公告)号：US20190340979A1

公开(公告)日：2019-11-07

申请号：US15580447

申请日：2017-06-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Jing LV ,  Xiaochuan CHEN ,  Can ZHANG

IPC: G09G3/3258 ,  G09G3/3266

Abstract: A pixel driving circuit, a driving method thereof and a display device are provided. The pixel driving circuit includes a driving control unit, a light-emission control signal generation unit and a pixel driving unit. The driving control unit is configured to generate a low resolution control signal or a high resolution control signal. The pixel driving unit includes N pixel driving sub-units. Each pixel driving sub-unit is configured to control M light-emitting elements connected to the pixel driving sub-unit to emit light simultaneously when the light-emission control signal generation unit has received the low resolution control signal, and control the M light-emitting elements to emit light in a time-division manner based on M data voltages applied to a data line in a time-division manner when the light-emission control signal generation unit has received the high resolution control signal, where N and M are both integers greater than 1.

公开(公告)号：US20180375027A1

公开(公告)日：2018-12-27

申请号：US15744359

申请日：2017-06-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Can ZHANG ,  Xiaochuan CHEN

IPC: H01L51/00 ,  H01L51/56 ,  C23C14/04

Abstract: A mask plate includes a mask substrate and a plurality of openings passing through the mask substrate, and a material of the mask plate is monocrystalline silicon. A manufacturing method of a mask and a manufacturing method of an organic light emitting diode display are also provided.