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公开(公告)号：EP4459604A1
公开(公告)日：2024-11-06
申请号：EP22948547.9
申请日：2022-06-30
发明人： ZHANG, Tiaomei , CHENG, Tianyi , YANG, Zhongliu , JIANG, Zhiliang , HU, Ming , QIU, Haijun
IPC分类号： G09G3/3225 , H01L27/12
摘要： A display panel and a display apparatus. The display panel comprises a pixel driving circuit. The pixel driving circuit comprises a first-type transistor and a second-type transistor. The display panel further comprises: a base substrate (90), a first active layer, a second active layer, and a first conductive layer. The first active layer is located on one side of the base substrate (90), at least a part of the structure of the first active layer being used for forming a channel region of the first-type transistor. The second active layer is located on the side of the first active layer facing away from the base substrate (90), at least a part of the structure of the second active layer being used for forming a channel region of the second-type transistor. The first conductive layer is located between the first active layer and the second active layer, a part of the structure of the first conductive layer being used for forming a gate of the first-type transistor, and a part of the structure of the first conductive layer being used for forming a bottom gate of the second-type transistor.
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公开(公告)号：EP4418834A1
公开(公告)日：2024-08-21
申请号：EP22944255.3
申请日：2022-05-31
发明人： LI, Meng , CHENG, Tianyi , HUANG, Yao , WANG, Binyan
IPC分类号： H10K50/81
CPC分类号： H10K50/81
摘要： A display substrate and a display device. The display substrate (100/600) comprises: a base substrate (101/601), and a pixel circuit (110/610), which is arranged on the base substrate (101/601), the pixel circuit (110/610) comprising a storage capacitor (C), and the storage capacitor (C) comprising a first electrode plate (Cst1) and second electrode plates (Cst2), which are opposite each other. The display substrate (100/600) further comprises a conductive film layer (107/607), wherein the conductive film layer (107/607) comprises a first conductive part (1074/6072). The first conductive part (1074/6072) comprises a main body part (1074a/6072a) and a bridging part (1074b/6072b), wherein the main body part (1074a/6072a) corresponds to the two second electrode plates (Cst2), and the bridging part (1074b/6072b) connects the two second electrode plates (Cst2). The first conductive part (1074/6072) comprises a gap (1074c/6072c) between the two second electrode plates (Cst2), and the provision of the gap (1074c/6072c) can improve pixel transmittance.
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公开(公告)号：EP4207165A1
公开(公告)日：2023-07-05
申请号：EP21944592.1
申请日：2021-06-10
发明人： WANG, Binyan , WEI, Feng , CHENG, Tianyi , LI, Meng
IPC分类号： G09G3/3233
摘要： A display panel and a display device. The display panel comprises a pixel driving circuit; the pixel driving circuit comprises a driving transistor (T3), a second transistor (T2), and a fourth transistor (T4); a first electrode of the second transistor (T2) is connected to a gate of the driving transistor (T3), and a second electrode of the second transistor is connected to a second electrode of the driving transistor (T3); a first electrode of the fourth transistor (T4) is connected to a data line (Da), and a second electrode of the fourth transistor is connected to a first electrode of the driving transistor (T3); and the driving transistor (T3) and the fourth transistor (T4) are P-type low-temperature polysilicon transistors, and the second transistor (T2) is an N-type oxide transistor. The display panel further comprises a base substrate, a first conductive layer, a second conductive layer, a second conductive portion, and a fourth conductive layer; the first conductive layer is located on one side of the base substrate, the first conductive layer comprises a first gate line (G2) and a first conductive portion (11), an orthographic projection of the first gate line (G2) on the base substrate extends along a first direction X, part of the structure of the first gate line (G2) is used for forming a gate of the fourth transistor (T4), and the first conductive portion (11) is used for forming the gate of the driving transistor (T3); the second conductive layer is located on one side of the base substrate, the second conductive layer comprises a second gate line (1G1), an orthographic projection of the second gate line (1G1) on the base substrate extends along the first direction X, part of the structure of the second gate line (1G1) is used for forming a first gate of the second transistor (T2), and the orthographic projection of the second gate line (1G1) on the base substrate is located between an orthographic projection of the first conductive portion (11) on the base substrate and the orthographic projection of the first gate line (G2) on the base substrate; an orthographic projection of the second conductive portion on the base substrate at least partially overlaps the orthographic projection of the first gate line (G2) on the base substrate; the fourth conductive layer is located on one side of the base substrate, the fourth conductive layer comprises a first connection portion (41), and the first connection portion (41) is connected to the first conductive portion (11) and the second conductive portion respectively by means of a via hole (H). The display panel has a good driving effect.
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公开(公告)号：EP4338150A1
公开(公告)日：2024-03-20
申请号：EP21957115.5
申请日：2021-09-17
发明人： WANG, Rui , ZENG, Chao , HU, Ming , QIU, Haijun , HUANG, Weiyun , CHENG, Tianyi
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公开(公告)号：EP4207164A1
公开(公告)日：2023-07-05
申请号：EP21944591.3
申请日：2021-06-10
发明人： WEI, Feng , WANG, Binyan , CHENG, Tianyi , LI, Meng
IPC分类号： G09G3/3233
摘要： A display panel and a display device, where the display panel includes a pixel driving circuit, the pixel driving circuit includes a driving transistor (T3) and a first transistor (T1), a first electrode of the first transistor (T1) is connected to a gate of the driving transistor (T3), a second electrode thereof is connected to a first initial signal line (Vinit1), the driving transistor (T3) is a P-type low temperature polysilicon transistor, and the first transistor (T1) is an N-type oxide transistor. The display panel further includes: a base substrate , a second conductive layer, a second active layer, a third conductive layer, and a fourth conductive layer. The second conductive layer is located on one side of the base substrate, and includes a third gate line (1Re1), where an orthographic projection of the third gate line (1Re1) on the base substrate extends along a first direction (X), and a partial structure of the third gate line (1Re1) is configured to form a first gate of the first transistor (T1). The second active layer is located on one side of the second conductive layer away from the base substrate, and a partial structure of the second active layer is configured to form a channel region of the first transistor (T1). The third conductive layer is located on one side of the second active layer away from the base substrate, and includes a fifth gate line (2Re1), where an orthographic projection of the fifth gate line (2Re1) on the base substrate extends along the first direction (X), and a partial structure of the fifth gate line (2Re1) is configured to form a second gate of the first transistor (T1). The fourth conductive layer is located on one side of the base substrate, and includes the first initial signal line (Vinit1), where an orthographic projection of the first initial signal line (Vinit1) on the base substrate extends along the first direction (X), and the first initial signal line (Vinit1) is configured to provide the first initial signal line (Vinit1).
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公开(公告)号：EP3683839A1
公开(公告)日：2020-07-22
申请号：EP18856212.8
申请日：2018-09-13
发明人： HUANG, Weiyun , CHENG, Tianyi
摘要： Disclosed are a display panel and a manufacturing method therefor, and a display apparatus. The display panel comprises: a base substrate (101); a pixel unit arranged on the base substrate (101), the pixel unit comprising a drive circuit layer (102); and a patterned metal layer located between the drive circuit layer (102) and the base substrate (101), wherein the metal layer comprises at least a first part (103A) for connecting a power supply voltage signal of the display panel. The metal layer can reduce the transmission resistance for a power supply voltage signal, thereby reducing a voltage drop generated during the transmission of the power supply voltage signal, so that the display brightness at each location of the display panel is more accurate.
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公开(公告)号：EP4414975A1
公开(公告)日：2024-08-14
申请号：EP22956790.4
申请日：2022-08-30
发明人： CHENG, Tianyi , GUO, Yonglin
IPC分类号： G09G3/3208 , G09G3/20
CPC分类号： G09G3/20 , G09G3/3208
摘要： The present disclosure provides a timing controller applied to a display device, where the display device includes a plurality of pixel circuits, a first driving circuit and a second driving circuit, each of the pixel circuits includes a driving transistor and a writing and compensation circuit; the first driving circuit is configured to sequentially output a first effective level signal to each of first control signal lines, according to a first driving start signal; the second driving circuit is configured to sequentially output a second effective level signal to each of second control signal lines, according to a second driving start signal; and the timing controller is configured to provide the first driving start signal and the second driving start signal during a refresh frame, where the number W of effective pulses in the first driving start signal is more than or equal to 2.
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公开(公告)号：EP4336484A1
公开(公告)日：2024-03-13
申请号：EP22937929.2
申请日：2022-04-22
发明人： LI, Zhengkun , LI, De , QING, Haigang , LONG, Yue , LIU, Cong , WANG, Qiwei , WANG, Binyan , YANG, Zhongliu , CHENG, Tianyi , YANG, Ni , WU, Qiyang
IPC分类号： G09G3/20
摘要： Provided are a display substrate and a display device. The display substrate includes a base substrate, and a driving circuit layer and a light-emitting device layer on the base substrate. The display substrate includes a light-transmitting display area and a normal display area, the normal display area surrounds at least a portion of the light-transmitting display area. The normal display area includes multiple normal driving circuits and multiple dummy driving circuits; some dummy driving circuit are used for driving light-emitting devices located in the light-transmitting display area. The display substrate further includes multiple normal data lines coupled to the normal driving circuits; at least one normal data line is coupled to a data signal input terminal through a data lead; an orthographic projection of the data lead onto the base substrate at least partially overlaps an orthographic projection of the dummy driving circuit onto the base substrate.
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公开(公告)号：EP4300471A1
公开(公告)日：2024-01-03
申请号：EP21951400.7
申请日：2021-07-30
发明人： WANG, Binyan , HUANG, Yao , LI, Meng , CHENG, Tianyi
IPC分类号： G09G3/32
摘要： Provided are a pixel circuit and a driving method therefor, and a display apparatus. The pixel circuit comprises a driving sub circuit, a first reset sub circuit, a second reset sub circuit, and a light-emitting element; the driving sub circuit is configured to generate driving current between the first electrode and the second electrode of the driving sub circuit in response to a control signal of a first node (Nl); the first reset sub circuit is configured to write a first reset signal to an anode end of the light-emitting element in response to the signal of a first light-emitting control signal line (EMI) or a second reset control signal line (Reset2); the second reset sub circuit is configured to write a second reset signal to the first electrode or the second electrode of the driving sub circuit in response to the signal of a first reset control signal line (Resetl); and the second reset signal is greater than the first reset signal.
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公开(公告)号：EP4207301A1
公开(公告)日：2023-07-05
申请号：EP21944567.3
申请日：2021-06-10
发明人： SUN, Kaipeng , WANG, Binyan , WEI, Feng , LI, Meng , CHENG, Tianyi , WANG, Lina , LIU, Cong , DAI, Shiqian
摘要： A display substrate and a display device. A display substrate (1) comprises an underlayment substrate (10) and a plurality of reset signal lines. The underlayment substrate comprises a display region (101), the display region (101) comprises a plurality of sub-pixels (100) arranged in an array, and each of the plurality of sub-pixels (100) comprises a pixel driving circuit (105) and a light-emitting element (120). The plurality of reset signal lines extend in a first direction (Y); the plurality of reset signal lines comprise a plurality of first reset signal lines (RL1) supplying a first reset signal and a plurality of second reset signal lines (RL2) supplying a second reset signal; and one of the plurality of first reset signal lines (RL1) and one of the plurality of second reset signal lines (RL2) are respectively connected to pixel driving circuits (105) of a plurality of sub-pixels (100) positioned in the same row, wherein a film layer where the plurality of first reset signal lines (RL1) are positioned is different from a film layer where the plurality of second reset signal lines (RL2) are positioned.
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