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1. 发明公开

EP4068375A1 DISPLAY SUBSTRATE AND DISPLAY APPARATUS 审中-公开
公开(公告)号：EP4068375A1
公开(公告)日：2022-10-05
申请号：EP19945443.0
申请日：2019-11-29
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Display Technology Co., Ltd.
发明人： WU, Zhongyuan , LI, Yongqian , YUAN, Can , YUAN, Zhidong , ZHANG, Dacheng , LIU, Lang
IPC分类号： H01L27/32 , G09G3/32
摘要： A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array in a first direction and a second direction, and at least one sub-pixel includes a storage capacitor. The storage capacitor includes a first capacitor electrode, a second capacitor electrode and a third capacitor electrode, and the second capacitor, the first second capacitor and the third second capacitor are sequentially on the base substrate. The first capacitor electrode has a first capacitor electrode side and a second capacitor electrode side opposite to each other in the second direction, and the second capacitor electrode has a third capacitor electrode side and a fourth capacitor electrode side opposite to each other in the second direction; orthographic projections of the first capacitor electrode side and the second capacitor electrode side on the base substrate are between an orthographic projection of the third capacitor electrode side and an orthographic projection of the fourth capacitor electrode side on the base substrate. The base substrate can effectively improve the display effect.

2. 发明申请

WO2019006957A1 OLED PIXEL CIRCUIT, AND DRIVING METHOD THEREOF, AND DISPLAY APPARATUS 审中-公开
公开(公告)号：WO2019006957A1
公开(公告)日：2019-01-10
申请号：PCT/CN2017/112090
申请日：2017-11-21
申请人： BOE TECHNOLOGY GROUP CO., LTD. , HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
发明人： YUAN, Can , LI, Yongqian , XU, Pan , YUAN, Zhidong , CAI, Zhenfei
IPC分类号： G09G3/32
摘要： A pixel circuit, which includes a data-input sub-circuit (1) configured to apply a data voltage from the data line (Data) to a first node (A); a reset sub-circuit (3) configured to reset a second node (B); a driving-control sub-circuit (2) coupled to a first power supply (Vdd), the first node (A), and the second node (B); a power-storage sub-circuit (4) configured to regulate a voltage difference between the first node (A) and the second node (B); a light-emitting device (5) coupled to the second node (B) and a second power supply (Vss); and a sampling sub-circuit (6) coupled to the data line (Data) and the second node (B) and being configured to control the data line (Data) to connect with the second node (B) for collecting a voltage signal containing information about electrical properties of the driving-control sub-circuit (2) and being used to generating a compensation voltage for compensating any drifts of the electrical properties.

3. 发明申请

WO2020186668A1 ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：WO2020186668A1
公开(公告)日：2020-09-24
申请号：PCT/CN2019/096538
申请日：2019-07-18
申请人： BOE TECHNOLOGY GROUP CO., LTD. , HEFEI BOE JOINT TECHNOLOGY CO.,LTD.
发明人： YUAN, Zhidong , LI, Yongqian , YUAN, Can
IPC分类号： H01L27/32 , G09G3/3225
摘要： The present disclosure provides an organic light emitting diode (OLED) display device and control method thereof. The OLED display device includes: a plurality of subpixels that are arranged in an array having a plurality of rows and a plurality of columns, wherein at least one of the subpixels comprises a control transistor, a light emitting element, and a drive transistor for driving the light emitting element; a plurality of detection lines, wherein at least one of the detection lines is electrically connected with the control transistors of subpixels in a same column, for detecting an electrical property of the drive transistors of subpixels in the same column through respective control transistors; and a plurality of group detection control lines, wherein at least one of the group detection control lines is electrically connected with control transistors of a subpixel group, the subpixel group comprising subpixels in a first row and subpixels in a second row.

4. 发明申请

WO2018184403A1 THIN-FILM TRANSISTOR, MANUFACTURING METHOD THEREOF, ARRAY SUBSTRATE AND DISPLAY DEVICE 审中-公开
公开(公告)号：WO2018184403A1
公开(公告)日：2018-10-11
申请号：PCT/CN2017/116903
申请日：2017-12-18
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： XU, Pan , LI, Yongqian , YUAN, Zhidong , CAI, Zhenfei , YUAN, Can , LI, Meng
IPC分类号： H01L27/12 , H01L29/786 , H01L21/77
摘要： A thin-film transistor includes a substrate (01), a light-shielding layer (02) and an active layer (04) sequentially over the substrate (01). The light-shielding layer (02) has an accommodating space having a bottom wall and a side wall on an upper surface thereof. An orthographic projection of the active layer (04) on the substrate (01) is contained within an orthographic projection of the accommodating space of the light-shielding layer (02). An upper side of the side wall of the accommodating space of the light-shielding layer (02) has a larger distance to the substrate than a bottom surface, and optionally has an equal or larger distance to the substrate (01) than a top surface of the active layer (04). The light-shielding layer (02) can comprise a gate electrode. As such, lights from an underneath and from a lateral side of the thin-film transistor that otherwise reach the active layer can be partially or completely blocked.

5. 发明申请

WO2021056422A1 ARRAY SUBSTRATE, DISPLAY APPARATUS, METHOD OF FABRICATING ARRAY SUBSTRATE, AND PIXEL DRIVING CIRCUIT 审中-公开
公开(公告)号：WO2021056422A1
公开(公告)日：2021-04-01
申请号：PCT/CN2019/108573
申请日：2019-09-27
申请人： BOE TECHNOLOGY GROUP CO., LTD. , HEFEI BOE JOINT TECHNOLOGY CO., LTD.
发明人： YUAN, Can , LI, Yongqian , XU, Pan , YUAN, Zhidong , LI, Meng , FENG, Xuehuan , DING, Zehua
IPC分类号： H01L27/32
摘要： An array substrate includes an array of a plurality of subpixels including a plurality of columns of subpixels respectively spaced apart by a plurality of inter-subpixel regions; a plurality of pixel driving circuits respectively driving light emission of the plurality of subpixels; and a plurality of detection and compensation lead lines respectively configured to respectively detect signals in the plurality of subpixels and respectively compensate signals in the plurality of subpixels. A respective one of a plurality of detection and compensation lead lines is disposed in a first inter-subpixel region between two directly adjacent columns of subpixels. The respective one of the plurality of detection and compensation lead lines is spaced apart by at least one columns of subpixels from a signal line configured to transmit an alternating current and arranged along a direction parallel to the respective one of the plurality of detection and compensation lead lines.

6. 发明申请

WO2021003600A1 DISPLAY SUBSTRATE, DISPLAY APPARATUS, AND METHOD OF FABRICATING DISPLAY SUBSTRATE 审中-公开
公开(公告)号：WO2021003600A1
公开(公告)日：2021-01-14
申请号：PCT/CN2019/094867
申请日：2019-07-05
申请人： BOE TECHNOLOGY GROUP CO., LTD. , HEFEI BOE JOINT TECHNOLOGY CO.,LTD.
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong
IPC分类号： H01L27/32
摘要： A display substrate including a plurality of light emitting elements respectively in a plurality of subpixels configured to emit light for image display is provided. A respective one of the plurality of subpixels includes a base substrate; a first auxiliary cathode; a passivation layer; a first insulating layer; a second auxiliary cathode; a second insulating layer; and a pixel definition layer. The display substrate has a cathode aperture extending through the pixel definition layer and an auxiliary cathode aperture extending through the first insulating layer and the passivation layer. A cathode of a respective one of the plurality of light emitting elements extends into the cathode aperture to electrically connect with the second auxiliary cathode. The second auxiliary cathode extends into the auxiliary cathode aperture to electrically connect with the first auxiliary cathode.

7. 发明申请

WO2020192018A1 ARRAY SUBSTRATE AND FABRICATING METHOD THEREOF, DISPLAY PANEL, AND DISPLAY APPARATUS 审中-公开
公开(公告)号：WO2020192018A1
公开(公告)日：2020-10-01
申请号：PCT/CN2019/104385
申请日：2019-09-04
申请人： BOE TECHNOLOGY GROUP CO., LTD. , HEFEI BOE JOINT TECHNOLOGY CO., LTD.
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong
IPC分类号： H01L27/32 , H01L21/77
摘要： An array substrate includes a base substrate (1); a driving transistor (2) on the base substrate (1); an insulating layer (3) on the driving transistor (2), the insulating layer (3) comprising a via hole above a first electrode (21) of the driving transistor (2); a conductive portion (4) on the insulating layer (3); and a light emitting device (6) on the conductive portion (4) and electrically connected to the conductive portion (4). The conductive portion (4) may be electrically connected to the first electrode (21) of the driving transistor (2) through the via hole. The light emitting device (6) may be above the via hole, and an orthographic projection of the light emitting device (6) on the base substrate (1) may cover an orthographic projection of the via hole on the base substrate (1).

8. 发明公开

EP4181112A1 DISPLAY APPARATUS, DISPLAY PANEL AND DRIVING METHOD THEREFOR, AND DETECTION METHOD FOR PIXEL CIRCUIT 审中-实审
公开(公告)号：EP4181112A1
公开(公告)日：2023-05-17
申请号：EP20966389.7
申请日：2020-12-23
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Joint Technology Co., Ltd.
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong
IPC分类号： G09G3/3233
摘要： A display apparatus, a display panel and a driving method therefor, and a detection method for a pixel circuit. The display panel comprises a pixel unit (P) and a detection apparatus (1). The pixel unit (P) comprises a pixel circuit and a light-emitting device. The pixel circuit comprises a first transistor (T1), a second transistor (T2), a drive transistor (Dr) and a storage capacitor (Cst). The detection apparatus (1) is used for: turning off, in a first time period (t1) in a first state of the pixel unit (P), the first transistor (T1) and the second transistor (T2), and for measuring the quantity of electricity leaking from the drive transistor (Dr) through a sense line (Sense), so as to obtain a first electric leakage parameter; for testing, in a second time period (t2) after the first time period (t1) in the first state, a first characteristic parameter of the drive transistor (Dr), so as to obtain a first reference characteristic parameter; and for determining a first target characteristic parameter according to the first electric leakage parameter and the first reference characteristic parameter.

9. 发明公开

EP4145433A1 SHIFT REGISTER, GATE ELECTRODE DRIVING CIRCUIT, AND GATE ELECTRODE DRIVING METHOD 审中-实审
公开(公告)号：EP4145433A1
公开(公告)日：2023-03-08
申请号：EP20926355.7
申请日：2020-04-30
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Joint Technology Co., Ltd.
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong
IPC分类号： G09G3/32
摘要： Shift register includes signal writing circuit, voltage control circuit and output circuit. The signal writing circuit is configured to write inverted signal of input signal provided by signal input terminal into second node responsive to control of second clock signal provided by second clock signal terminal. The voltage control circuit is configured to write first operating voltage into first node and write second clock signal into third node in voltage control circuit in response to control of voltage at first node, write second operating voltage into third node in response to control of second clock signal and write first clock signal provided by first clock signal terminal into first node in response to control of voltage at third node and first clock signal. The output circuit is configured to write second or first operating voltage into signal output terminal in response to control of voltage at first or second node.

10. 发明公开

EP3859784A1 ARRAY SUBSTRATE AND METHOD FOR DETECTING SAME, AND DISPLAY PANEL 审中-实审
公开(公告)号：EP3859784A1
公开(公告)日：2021-08-04
申请号：EP19858706.5
申请日：2019-09-12
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co. Ltd
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong , LI, Meng
IPC分类号： H01L27/32 , G09G3/3225
摘要： An array substrate and a detection method thereof, and a display panel are disclosed. The array substrate (10) includes a plurality of subpixels (100) and a plurality of detection line structures (110). The plurality of subpixels (100) are arranged in an array of a plurality of rows and a plurality of columns along a first direction (D1) and a second direction (D2), and the first direction (D1) intersects the second direction (D2). Each of the plurality of detection line structures (110) includes at least one first detection line (111) extending along the first direction (D1); at least one subpixel (100) in each row of subpixels includes a light-emitting element (OLED) and a first transistor (T1) that drives the light-emitting element to emit light; adjacent (n)th row and (n+1)th row of subpixels (100) in the array form a subpixel row group (200), one detection line structure (110) is provided between the (n)th row and (n+1)th row of subpixels (100) in each subpixel row group (200), and the detection line structure (110) is configured to be connected to the (n)th row and (n+1)th row of subpixels (100) and detect electrical characteristics of first transistors (T1) or light-emitting elements (OLED) in the subpixels (100); and n is an odd number or an even number greater than zero. The array substrate reduces the number of detection line structures by alternately sharing detection line structures between adjacent rows of subpixels, thereby reducing the overlap of detection lines and data lines, which can not only reduce parasitic capacitance, but also improve product yield.

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