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公开(公告)号：EP4213604A1
公开(公告)日：2023-07-19
申请号：EP22831231.0
申请日：2022-03-09
发明人： YUAN, Can , LI, Yongqian
IPC分类号： H10K59/00 , G09G3/3233 , G09F9/30 , H01L27/12
摘要： A display substrate, a preparation method therefor, and a display apparatus. The display substrate comprises a plurality of display units, and each display unit comprises a display area and a transparent area; each display area is provided with a first power supply line and a second power supply line along a first direction, said display area is provided with a first scan signal line, a second scan signal line, a second scan connection line, and a first scan connection line along a second direction, and the second scan connection line and the second scan signal line are connected into a first annular structure; each display area is further provided with a third scan connection line, and the third scan connection line, the first scan connection line, and the first scan signal line are connected into a second annular structure; orthographic projections of the first annular structure, the first power supply line, and the second power supply line onto a base substrate do not overlap; and orthographic projections of the second annular structure, the first power supply line, and the second power supply line onto the base substrate do not overlap.
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2.发明公开
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
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.
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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
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.
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公开(公告)号：EP4300473A1
公开(公告)日：2024-01-03
申请号：EP21950473.5
申请日：2021-07-21
发明人： YUAN, Zhidong , LI, Yongqian , ZHANG, Dacheng , XU, Jingbo , YUAN, Can
IPC分类号： G09G3/3225 , H10K59/00
摘要： A display substrate (910), comprising a base substrate (60) and a plurality of pixel unit groups (P). The plurality of pixel unit groups (P) are located in an active area (AA) of the base substrate (60). At least one pixel unit group (P) comprises a plurality of sub-pixel groups, wherein at least one sub-pixel group comprises a pixel circuit. The pixel circuit comprises a first sub-pixel circuit (71), a second sub-pixel circuit (72) and a light emission control sub-circuit (73), wherein the first sub-pixel circuit (71) and the second sub-pixel circuit (72) are both electrically connected to the light emission control sub-circuit (73); the light emission control sub-circuit (73) is configured to control a first light-emitting element (EL) electrically connected to the first sub-pixel circuit (71) to emit light, and to control a second light-emitting element (EL') electrically connected to the second sub-pixel circuit (72) to emit light; and the first sub-pixel circuit (71) and the second sub-pixel circuit (72) are approximately symmetrical with respect to a centerline (OY) of the sub-pixel groups in a first direction (Y).
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公开(公告)号：EP4220727A1
公开(公告)日：2023-08-02
申请号：EP21938459.1
申请日：2021-04-30
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong , XU, Pan
IPC分类号： H01L27/32
摘要： A display substrate and a display device are provided. The display substrate includes: a plurality of pixel units arranged on a base substrate, wherein each pixel unit includes a plurality of sub-pixels, and each sub-pixel includes a light emitting element and a pixel driving circuit for driving the light emitting element; a semiconductor layer arranged on the base substrate; a first conductive layer arranged on a side of the semiconductor layer close to the base substrate; and a second conductive layer arranged on a side of the semiconductor layer away from the base substrate. The pixel driving circuit includes at least a driving transistor, a switching transistor and a sensing transistor; the switching transistor includes a first gate electrode located in the first conductive layer and a first active layer located in the semiconductor layer; the display substrate further includes a channel defining portion for defining a channel region of the switching transistor, the channel defining portion is located in the second conductive layer, and an orthographic projection of the channel defining portion on the base substrate at least partially overlaps an orthographic projection of the first active layer on the base substrate.
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公开(公告)号：EP4044169A1
公开(公告)日：2022-08-17
申请号：EP21846073.1
申请日：2021-06-08
发明人： YUAN, Zhidong , LI, Yongqian , YUAN, Can , XU, Pan
IPC分类号： G09G3/3225 , G09G3/3266
摘要： Provided is a display substrate and a display device, and relates to the field of display technologies. In the display substrate, because at least two pixels disposed on the base substrate may share the same light emitting control circuit connected to the light emitting control lines, the number of light emitting control circuits required to be set in the display substrate may be reduced, or the number of light emitting control lines required to be set in the display substrate may be reduced. That is, the area, occupied by each pixel, of the base substrate is smaller. Therefore, both the gate drive circuit that provides the signal for the signal line connected to the pixel, and the drive signal connected to the gate drive circuit can be disposed on the base substrate. The display substrate provided in the present disclosure has a higher resolution.
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7.发明公开
公开(公告)号：EP4035209A1
公开(公告)日：2022-08-03
申请号：EP19945452.1
申请日：2019-09-27
发明人： YUAN, Can , LI, Yongqian , XU, Pan , YUAN, Zhidong , LI, Meng , FENG, Xuehuan , DING, Zehua
IPC分类号： H01L27/32
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公开(公告)号：EP4418250A1
公开(公告)日：2024-08-21
申请号：EP22946164.5
申请日：2022-06-14
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong
IPC分类号： G09G3/3225 , H10K59/00 , H01L27/146
CPC分类号： G09G3/3225 , H01L27/146
摘要： The present disclosure provides a display panel and a display apparatus, which belongs to the field of display technologies. The display panel includes a plurality of subpixels on a side of a substrate. Each subpixel includes a first circuit and a second circuit. The first circuit and the second circuit control a voltage at a first node under control of a first control line and a second control line. At least two subpixels in the plurality of subpixels share the same first node. Therefore, the sum of the number of a plurality of first control lines and the number of a plurality of second control lines in the display panel is less than or equal to the number of subpixels in a column direction. Correspondingly, a small number of signal lines need to be disposed in the display panel, which facilitates high-resolution design of the display panel.
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公开(公告)号：EP4068255A1
公开(公告)日：2022-10-05
申请号：EP19945449.7
申请日：2019-11-29
发明人： WU, Zhongyuan , LI, Yongqian , YUAN, Can , LI, Meng , YUAN, Zhidong , ZHANG, Dacheng , LIU, Lang
IPC分类号： G09G3/20
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, and the column direction is a first direction and the row direction is a second direction. At least one sub-pixel includes a first transistor, a second transistor, a third transistor, and a storage capacitor. An active layer of the third transistor includes a body region and a first via hole region which are successively arranged in the first direction and are electrically connected with each other; a first electrode of the third transistor is electrically connected to the first via hole region through a first via hole, and the first via hole region is shifted in the second direction with respect to the body region, so that the active layer incudes a first active layer side connecting the body region and the first via hole region; an extension direction of the first active layer side intersects with both the first direction and the second direction. The display substrate can effectively improve the display effect.
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10.发明公开
公开(公告)号：EP4012776A1
公开(公告)日：2022-06-15
申请号：EP20904258.9
申请日：2020-05-19
发明人： YUAN, Zhidong , ZHANG, Dacheng , LI, Yongqian , LIU, Lang , WU, Zhongyuan , YUAN, Can , LI, Meng
摘要： A display substrate includes: a base substrate including a display area and a peripheral area located on at least a first side of the display area; a plurality of pixel units arranged in an array in the display area of the base substrate, wherein each of the pixel units includes a pixel drive circuit and a light emitting device electrically connected to the pixel drive circuit, the light emitting device includes a first electrode, a second electrode, and a light emitting layer between the first electrode and the second electrode; a first power trace located in the peripheral area and electrically connected to the first electrode; a second power trace located in the peripheral area and electrically connected to the second electrode; a planarization layer with at least a portion thereof being located in the peripheral area. An orthographic projection of the planarization layer on the base substrate at least partially overlaps an orthographic projection of each of the first power trace and the second power trace on the base substrate, the first power trace and the second power trace are located in different layers, and a portion of the planarization layer is located between the first power trace and the second power trace.
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