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公开(公告)号：EP4202898A1
公开(公告)日：2023-06-28
申请号：EP21923795.5
申请日：2021-02-07
发明人： CHENG, Hongfei , HAO, Xueguang
IPC分类号： G09G3/32 , G09G3/3208 , G09G3/3225 , G09G3/3233
摘要： Embodiments of the present disclosure provide a pixel circuitry, a drive method thereof, an array substrate and a display panel. The pixel circuitry may comprise a drive circuit, a data write circuit, an initialization circuit, a first light emission control circuit, a first storage circuit, a second storage circuit and a second light emission control circuit. The drive circuit may be coupled to a first node, a second node and a third node, and may provide a drive current to a light emitting device. The data write circuit may be coupled to the first node and may provide a data signal to the drive circuit according to a drive signal. The initialization circuit may provide an initialization signal to the second node according to a reset signal. The first light emission control circuit may provide a first voltage signal to the third node according to a first light emission control signal. The first storage circuit may store a voltage difference between the first voltage signal terminal and the second node. The second storage circuit may store a voltage difference between the first node and the second node. The second light emission control circuit may control the providing of the drive current to the light emitting device according to a second light emission control signal.
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公开(公告)号：EP3859783A1
公开(公告)日：2021-08-04
申请号：EP19838922.3
申请日：2019-08-08
发明人： CHENG, Hongfei
IPC分类号： H01L27/32
摘要： An array substrate, a display panel and a display device are provided. The array substrate includes: a substrate body including a display area and a non-display area, wherein the non-display area includes a fan-out area in which a fan-out signal line is arranged, and the fan-out signal line is connected to a signal line within the display area. The fan-out area includes an inorganic insulation layer arranged between the substrate body and a planarization layer, the inorganic insulation layer is provided with a first groove, and an orthographic projection of at least a part of the fan-out signal line onto the substrate body is within an orthographic projection of the first groove onto the substrate body.
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3.发明公开
公开(公告)号：EP3809463A1
公开(公告)日：2021-04-21
申请号：EP19820391.1
申请日：2019-04-26
发明人： CHENG, Hongfei
摘要： An array substrate and a method for manufacturing same, an array substrate motherboard, a display panel and a display device. The array substrate comprises a display area (aa) and a bonding area (bb) outside the display area (aa). The array substrate further comprises: a bonding electrode (1) located in the bonding area (bb) and spaced apart from an outer edge of the bonding area (bb), and an electrostatic barrier line (2), wherein one end of the electrostatic barrier line (2) is electrically connected to the bonding electrode (1), the other end of the electrostatic barrier line (2) extends to the outer edge of the bonding area (bb), and the resistivity of the electrostatic barrier line (2) is greater than the resistivity of the bonding electrode (1). The invention facilitates the mitigation of destruction of static electricity to the internal structure of an array structure and the internal structure of an array substrate.
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公开(公告)号：EP2922089B1
公开(公告)日：2020-03-18
申请号：EP14859326.2
申请日：2014-04-22
发明人： CHENG, Hongfei , ZHANG, Yuxin
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公开(公告)号：EP3598494A1
公开(公告)日：2020-01-22
申请号：EP17868502.0
申请日：2017-11-15
发明人： CHENG, Hongfei , ZHANG, Yuxin
IPC分类号： H01L27/12
摘要： Embodiments of the present invention provide a conductive substrate, a manufacturing method thereof and a display device. The conductive substrate includes a base substrate (10) and a first conductive layer (11) and a second conductive layer (12) disposed on the base substrate (10), wherein the first conductive layer (11) and the second conductive layer (12) contact with each other, the first conductive layer (11) is configured to be electrically connected with separated parts after the second conductive layer (12) is fractured, and the first conductive layer (11) includes a composite material layer or a nanowire conductive network layer. The conductive substrate has relatively good quality and improved flexibility.
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6.发明公开
公开(公告)号：EP3486756A1
公开(公告)日：2019-05-22
申请号：EP17830341.8
申请日：2017-06-28
发明人： CHENG, Hongfei , LI, Xin
摘要： A touch display screen (100) and a preparation method, display apparatus and drive method therefor. The touch display screen (100) comprises: a first substrate (101) and a second substrate (102) arranged opposite each other; a first electrode (103) and a second electrode (140) arranged between the first substrate (101) and the second substrate (102) and capable of generating a horizontal electric field when in a powered-up state; a liquid crystal (106) filled between the first substrate (101) and the second substrate (102); and a touch sensing electrode (107) provided at an outer side or an inner side of the second substrate (102). The liquid crystal (106) comprises a nematic phase liquid crystal and a long-chain compound (105) dispersed in the nematic phase liquid crystal and enabling the nematic phase liquid crystal to be in a scattered state. The touch display screen (100) is based on an optical wave guide structure and improves the transmittance of light rays; and conditions for total reflection of light rays are destroyed by the long-chain compound (105), so that liquid crystal molecules are in a scattered state, thereby realizing a display function.
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公开(公告)号：EP3991206A1
公开(公告)日：2022-05-04
申请号：EP19933231.3
申请日：2019-06-25
发明人： CHENG, Hongfei
IPC分类号： H01L27/12
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公开(公告)号：EP3835858A1
公开(公告)日：2021-06-16
申请号：EP19847864.6
申请日：2019-08-01
发明人： CHENG, Hongfei
IPC分类号： G02F1/1345 , G02F1/1362 , H01L27/12
摘要： The present disclosure provides an array substrate, including: a base, and at least one lead structure disposed on the base. The lead structure includes a first conductive structure and a conductive semiconductor structure, and an orthographic projection of the conductive semiconductor structure on the base at least partially overlaps an orthographic projection of the first conductive structure on the base.
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公开(公告)号：EP3805856A1
公开(公告)日：2021-04-14
申请号：EP19762083.4
申请日：2019-01-21
发明人： XIAN, Jianbo , CHENG, Hongfei , XU, Jian , QIAO, Yong
IPC分类号： G02F1/1362
摘要： An array substrate (10) and a display device (16) are provided, and the array substrate includes a base substrate (1) and includes a pixel array (1) and an auxiliary conductive structure (3) which are on the base substrate (1); the pixel array includes a plurality of pixel units (2) arranged in an array and a plurality of pixel electrodes (21), and each of the plurality of pixel units (2) includes at least one of the plurality of pixel electrodes (21); the auxiliary conductive structure (3) surrounds at least one of the plurality of pixel electrodes (21) and is insulated from the plurality of pixel electrodes (21); a resistivity of a material of the auxiliary conductive structure (3) is less than or equal to a resistivity of a material of the at least one of the plurality of the pixel electrodes (21). The auxiliary conductive structure (3) receives and transmits interfering charges around the pixel electrode (21), so that the interfering charges are kept away from the pixel electrode (21), and thereby interference of the interfering charges on the pixel electrode (21) is prevented or reduced.
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公开(公告)号：EP3671335A1
公开(公告)日：2020-06-24
申请号：EP18846834.2
申请日：2018-04-28
发明人： CHENG, Hongfei , LI, Pan
IPC分类号： G02F1/1339
摘要： A display panel, a method for manufacturing same, and a display device, relating to the technical field of display, for use in resolving the problem of decrease in display performance of a display panel caused by a spacer moving to an opening area. The display panel comprises an opening area (1) and a non-opening area (2) surrounding the opening area (1), and a spacer (20) disposed in the non-opening area (2). A pad structure (30) is further provided in the non-opening area (2). The pad structure (30) is located beside the spacer (20) and used for preventing the spacer (20) from moving to the opening area (1). The position of the spacer (20) is defined by means of the pad structure (30) disposed in the non-opening area (2) and beside the spacer (20), so as to prevent the spacer (20) from moving to the opening area (1), thereby avoiding changes in arrangement of liquid crystals around the spacer (20) caused by movement of the spacer (20), and also preventing the spacer (20) from blocking light transmitted through the opening area (1) due to movement of the spacer (20) to the opening area (1). Thus, influences on the arrangement of the liquid crystals and the aperture ratio of the display panel caused by the spacer (20) moving to the opening area (1) can be avoided, and therefore the display performance of the display panel can be improved.
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