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公开(公告)号：US20250078728A1
公开(公告)日：2025-03-06
申请号：US18247256
申请日：2023-02-08
Inventor： Chao TIAN , Mingyue LI , Yanqing GUAN , Haiming CAO , Fei AI , Guanghui LIU
IPC: G09G3/32
Abstract: An embodiment of the present disclosure is directed to a display panel. The display panel includes a plurality of scan lines and a plurality of forward and reverse scan pull-down circuit. The plurality of scan lines is located on the display area. Each of the forward and reverse scan pull-down circuits includes a forward scan control module, a reverse scan control module, and a pull-down module located on a display area. The pull-down module includes an output terminal and a control terminal coupled to an output terminal of the forward scan control module and an output terminal of the reverse scan control module.
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公开(公告)号：US20250037668A1
公开(公告)日：2025-01-30
申请号：US18914469
申请日：2024-10-14
Inventor： Chao TIAN , Yanqing GUAN , Guanghui LIU , Fei AI
IPC: G09G3/3266 , G09G3/20 , G09G3/36
Abstract: The present application provides a display panel and a display device. An N-th auxiliary unit is arranged in a display area of the display panel. An output end of the N-th auxiliary unit is connected to an N-th scan line. By connecting the auxiliary unit arranged in the display area to the corresponding scan line, a falling edge of a scan signal transmitted in the scan line can have sharp falling or a rising edge of the scan signal can have sharp rising, which can alleviate a signal distortion problem caused by transmission delay in the display area.
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公开(公告)号：US20240234576A1
公开(公告)日：2024-07-11
申请号：US17925085
申请日：2022-11-04
Inventor： Zhifu LI , Guanghui LIU , Fei AI , Dewei SONG , Chengzhi LUO
IPC: H01L29/786 , H01L27/12 , H01L29/66
CPC classification number: H01L29/78642 , H01L27/1222 , H01L27/127 , H01L29/6675 , H01L29/78618 , H01L29/78633 , H01L29/78672 , H01L29/78696
Abstract: The present application provides a thin-film transistor having a vertical structure and an electronic device. In the thin-film transistor having the vertical structure, the thin-film transistor includes a first doped portion and a second portion, the second doped portion is connected to and partly in contact with a channel portion through a via hole by arranging the second doped portion in the via hole of an insulating layer, which can reduce a contact area between the second doped portion and the channel portion, thereby reducing ions diffusing into a channel region and improving device stability of the thin-film transistor. Also, in the thin-film transistor having the vertical structure, a projection area of the thin-film transistor can be reduced, improving an aperture ratio of a display panel.
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公开(公告)号：US20240119883A1
公开(公告)日：2024-04-11
申请号：US17976803
申请日：2022-10-30
Inventor： Haiming CAO , Chao TIAN , Fei AI , Guanghui LIU
CPC classification number: G09G3/2014 , G09G3/32 , G09G2300/0842 , G09G2310/0264 , G09G2310/08 , G09G2320/0242 , G09G2320/0633
Abstract: A pixel driving circuit and a display panel are provided. The pixel driving circuit includes a data writing module, a data conversion module, and a current driving module. The data writing module is electrically connected to a first node and configured to transmit a data signal to the first node. The data conversion module is electrically connected to the first node, a second node, and a modulation signal source, and configured to generate a current driving control signal, and to output the current driving control signal to the second node. The current driving module is electrically connected to the second node, a light-emitting control wire, and a light-emitting device, and configured to control the light-emitting device to emit light. An effective pulse of the current driving control signal has different pulse widths in different gray-scale states.
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公开(公告)号：US20240038745A1
公开(公告)日：2024-02-01
申请号：US17612235
申请日：2021-09-17
Inventor： Zhou ZHANG , Guowei ZHA , Guanghui LIU , Zhifu LI , Xiaolin YAN , Wanliang FENG
CPC classification number: H01L25/167 , H01L24/05 , H01L24/32 , H01L2224/05573 , H01L2224/32148
Abstract: A display device is provided and includes: a plurality of display modules disposed on the first bearing surface, each of the display modules including a plurality of display units; a plurality of first functional elements located on the first bearing surface, and each of the first functional elements disposed between any two of the display units; and a plurality of second functional elements located on the second bearing surface; wherein a function of each of the second functional elements is the same as a function of each of the first functional elements, and processing capability of each of the second functional elements is different from processing capability of each of the first functional elements.
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Patent Agency Ranking
公开(公告)号：US20240030232A1
公开(公告)日：2024-01-25
申请号：US17623214
申请日：2021-12-09
Inventor： Yuan SUN , Chao WANG , Guanghui LIU , Liwang LIU
IPC: H01L27/12
CPC classification number: H01L27/124
Abstract: The present application discloses a display panel and a display device. The display panel includes an active layer, a gate layer, and a metal layer, which is able to quickly pull down a falling edge of a scan signal in a first scan line when a rising edge of a scan signal in a second scan line arrives. By constructing a low-potential wiring, a control wiring, and a pull-down transistor between the first data line and the second data line, a layout with less space can be completed and an aperture ratio can be increased as much as possible.
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公开(公告)号：US20240005829A1
公开(公告)日：2024-01-04
申请号：US17617608
申请日：2021-10-29
Inventor： Haiming CAO , Yanqing GUAN , Chao TIAN , Fei AI , Guanghui LIU , Zhifu LI
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0267 , G09G2330/021
Abstract: A gate driving circuit and a display panel are disclosed. A pull-up control module and a pull-down module of each stage gate driving unit are connected to a first node. A thin film transistor in the pull-up control module and/or pull-down module that is connected to the first node is an oxide thin film transistor, such that a leakage current of the first node is reduced due to the advantage of the small off-state leakage current of the oxide thin film transistor. Therefore, the voltage level of the first node can remain stable during a pull-up stage and a touch suspension stage.
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公开(公告)号：US20230137477A1
公开(公告)日：2023-05-04
申请号：US17051257
申请日：2020-08-28
Inventor： Bingkun YIN , Changchih HUANG , Guanghui LIU
IPC: G02F1/1335 , F21V8/00 , G02F1/13357
Abstract: A light guide plate including a substrate; a first refractive index layer; a second refractive index layer stacked on the first refractive index layer, and a reflective layer disposed on a surface of the substrate opposite to the first refractive index layer, wherein the first refractive index layer is a structure of a plurality of prisms distributed on an emergence surface of the substrate, forming prism-structured netted dots. Through disposing the prism-structured netted dots, the reflective layer, and the second refractive index layer on the light guide plate substrate, and using refraction and reflection of each layer to realize adjustment of emergence angle, a function of an independent diffuser, prism, and reflector is realized. The light guide plate is used as CF or TFT substrate to manufacture a liquid crystal display, and a backlight module is integrated into a liquid crystal panel, decreasing a thickness of a liquid crystal module.
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公开(公告)号：US20220365393A1
公开(公告)日：2022-11-17
申请号：US17284487
申请日：2021-03-31
Inventor： Rui HE , Wei CHENG , Changchih HUANG , Guanghui LIU
IPC: G02F1/13357 , G02F1/1333 , G02F1/1335 , G02F1/1334 , G06V40/13
Abstract: A backlight module and a liquid crystal display device are provided. The backlight module includes a first optical element which can switch between a transparent state and a scattering state, first light sources, and a light-shielding layer disposed on a light path of light emitted from the first light sources to a liquid crystal display panel. The light-shielding layer includes a plurality of gratings arranged at intervals, each of the gratings is made of a light-shielding material, and one light transmission gap is formed between any two adjacent gratings, thereby improving uniformity of backlight.
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公开(公告)号：US20210333633A1
公开(公告)日：2021-10-28
申请号：US16495214
申请日：2019-05-13
Inventor： Xindong MEI , Shaojun HOU , Chao WANG , Guanghui LIU
IPC: G02F1/13357 , G03B15/02 , H04N5/225
Abstract: A backlight module and a display device are provided, which include a camera area and a backlight area, wherein the backlight area surrounds the camera area, the camera area includes a transparent illumination area and a non-transparent illumination area, and the non-transparent illumination area surrounds the transparent illumination area; and the light board is disposed in the non-transparent illumination area and the at least one light bead is disposed on a light board. In the display mode, the camera area obtains a uniform light source, so as to realize the camera area of the display device which can be displayed normally in the displaying mode, and achieve a true 100% screen ratio. In a lighting mode of the camera module, the light source of the light bead is turned off to avoid affecting the collecting operation of the camera module.
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