-
公开(公告)号：US09897876B2
公开(公告)日：2018-02-20
申请号：US15214384
申请日：2016-07-19
Inventor： Li Wang , Baojie Zhao , Jiabin Cui
IPC: G02F1/1362 , G02F1/1368 , G02F1/1333
CPC classification number: G02F1/136209 , G02F1/1333 , G02F1/1368 , G02F2001/133354 , G02F2001/136222
Abstract: A display substrate and a method of manufacturing the same, and a display device, are disclosed. The display substrate includes a control portion and a color portion, the control portion and the color portion both including position aligning regions at corresponding positions and further including position aligning marks provided in the position aligning regions. The black matrix is located on top of the color portion and at least the position aligning marks in the color filter layer are formed in a hollowed-out structure. The position aligning marks has an increased level drop or height difference, such that more accurate position alignment may be achieved by identifying the position aligning marks based on height difference at edge of standard pattern.
-
公开(公告)号：US12236866B2
公开(公告)日：2025-02-25
申请号：US17788727
申请日：2021-07-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiyu Zhao , Libin Liu , Yu Feng , Li Wang , Yao Huang , Benlian Wang , Weiyun Huang , Rui Wang
IPC: G09G3/3233 , G09G3/3225 , G09G3/3266 , G09G3/3275 , G09G3/3291 , H10K59/121 , H10K59/126
Abstract: A pixel circuit, a driving method and a display device. The pixel circuit includes a driving circuit, a first initialization circuit and a reset circuit; the first initialization circuit configured to write a first initial voltage into the first end of the driving circuit under the control of an initialization control signal; the reset circuit is configured to write a reset voltage into the second end of the driving circuit or the first end of the driving circuit under the control of a second scan signal; the driving circuit is configured to control to connect the first end of the driving circuit and the second end of the driving circuit under the control of a potential of a control end of the driving circuit.
-
公开(公告)号：US12223906B2
公开(公告)日：2025-02-11
申请号：US17788725
申请日：2021-07-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Libin Liu , Shiming Shi , Xiyu Zhao , Yu Feng , Li Wang
IPC: G09G3/3258 , G09G3/3225 , H10K59/121
Abstract: A pixel circuit, a driving method and a display device. The pixel circuit includes a driving circuit, a first control circuit, a compensation control circuit and a first initialization circuit; the first control circuit is configured to control to connect the control end of the driving circuit and the connection node under the control of a first scan signal; the compensation control circuit is configured to control to connect the connection node and the first end of the driving circuit under the control of a second scan signal; the first initialization circuit is configured to write a first initialization voltage into the connection node under the control of an initialization control signal; the driving circuit is configured to control to connect the first end and a second end of the driving circuit under the control of a potential of the control end thereof.
-
公开(公告)号：US12205269B2
公开(公告)日：2025-01-21
申请号：US17784073
申请日：2021-06-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hao Tang , Ronghua Lan , Jiuyang Cheng , Shuo Zhou , Zhong Huang , Guo Jiang , Li Wang , Lijia Zhou , Zhidong Wang , Lirong Xu , Quanguo Zhou
Abstract: A method for detecting a display panel defect, including: collecting a panel image of a to-be-detected display panel, a plurality of first pixels of the display panel corresponding to a plurality of second pixels in the panel image; converting the panel image into a binary image; dilating each bright spot region in the binary image such that adjacent bright spot regions communicate with each other to form at least one closed communication region in the binary image; determining a region of interest mask image in the binary image in accordance with the at least one closed communication region; determining a region of interest in accordance with the region of interest mask image and the panel image; and performing feature identification on the region of interest to determine a defect of the display panel.
-
公开(公告)号：US12178082B2
公开(公告)日：2024-12-24
申请号：US18372884
申请日：2023-09-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yipeng Chen , Li Wang , Lujiang Huangfu
IPC: H01L29/08 , G09G3/3291 , H10K59/121 , H10K59/126
Abstract: An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate. The display substrate further comprises a shielding portion. The shielding portion is between the second capacitor plate and the first data line in a direction perpendicular to the base substrate, and an orthographic projection of the shielding portion on the base substrate at least partially overlap an orthographic projection of the first data line on the base substrate.
-
Patent Agency Ranking
公开(公告)号：US12057069B2
公开(公告)日：2024-08-06
申请号：US17788111
申请日：2021-05-31
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G3/3233 , G09G3/3258
CPC classification number: G09G3/3233 , G09G3/3258 , G09G2300/0426 , G09G2300/0861 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247 , G09G2330/021
Abstract: A display substrate and a display panel. The display substrate includes: a base substrate; and a plurality of sub-pixels on the base substrate, each of the plurality of sub-pixels includes a light-emitting element and a pixel circuit for driving the light-emitting element to emit light, the pixel circuit includes a driving sub-circuit, a data writing sub-circuit, a threshold compensation sub-circuit, a current-leakage prevention sub-circuit and a storage sub-circuit; the storage sub-circuit includes a storage capacitor, the storage capacitor includes a first electrode plate, a second electrode plate and a third electrode plate, the first electrode plate and the third electrode plate are electrically connected to each other and are in different layers with respect to the base substrate, and the second electrode plate at least partially overlaps the first electrode plate and the third electrode plate in a direction perpendicular to the base substrate.
-
公开(公告)号：US12002425B2
公开(公告)日：2024-06-04
申请号：US18038690
申请日：2020-11-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lujiang Huangfu , Li Wang , Jianchao Zhu , Libin Liu
IPC: G09G3/3233 , G09G3/3291
CPC classification number: G09G3/3233 , G09G3/3291 , G09G2300/0852 , G09G2310/061 , G09G2320/0247 , G09G2330/021
Abstract: Provided are a pixel circuit and a driving method therefor, and a display apparatus. The pixel circuit includes a drive transistor, a reset circuit, a data writing circuit, a storage capacitor circuit, a threshold value compensation circuit, a conduction control circuit, a light-emitting control circuit, and a light-emitting device; the conduction control circuit is configured to: conduct the threshold value compensation circuit with the gate of the drive transistor, and conduct the reset circuit with the gate of the drive transistor at the reset stage, the threshold value detecting stage and the data writing stage; and cut off a conducting state of the threshold value compensation circuit with the gate of the drive transistor, and cut off a conducting state of the reset circuit with the gate of the drive transistor at the driving stage; where the conduction control circuit includes an oxide semiconductor thin film transistor.
-
公开(公告)号：US20240177660A1
公开(公告)日：2024-05-30
申请号：US17789174
申请日：2021-09-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lujiang Huangfu , Li Wang , Jianchao Zhu , Libin Liu , Yu Feng
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0247
Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).
-
49.发明授权公开(公告)号：US11605684B2
公开(公告)日：2023-03-14
申请号：US16905851
申请日：2020-06-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Li Wang
Abstract: An array substrate, including: a base substrate including a display area and a non-display area; a first transistor in the display area; a second transistor in the non-display area; and a substrate electrode, the substrate electrode including: a first substrate electrode between the first transistor and the base substrate; and a second substrate electrode between the second transistor and the base substrate, wherein the first substrate electrode and the second substrate electrode are configured to adjust threshold voltages of the first transistor and the second transistor, respectively, there is an open circuit between the first substrate electrode and the second substrate electrode, the first substrate electrode is supplied with a first adjustment voltage, the second substrate electrode is supplied with a second adjustment voltage, and an absolute value of the first adjustment voltage is different from an absolute value of the second adjustment voltage.
-
公开(公告)号：US11538800B2
公开(公告)日：2022-12-27
申请号：US16640420
申请日：2019-02-20
IPC: H01L31/0232 , H01L23/34 , H01L21/00 , H05K7/20 , H05K1/00 , H01L25/18 , H01L25/00 , H01L51/52 , H01L27/32
Abstract: A display device and a manufacturing method thereof are provided. The display device includes a display panel, a heat dissipation layer, and a chip on film. The heat dissipation layer is on a non-display side of the display panel and includes a driving circuit arranging region and a peripheral region. The heat dissipation layer located in at least a part of the driving circuit arranging region is insulated from the heat dissipation layer located in the peripheral region. The chip on film is on a side of the heat dissipation layer away from the display panel and is in the driving circuit arranging region.
-
-
-
-
-
-
-
-
-
Search Results
102
records
(took 0.029 seconds)
