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公开(公告)号：US20250169309A1
公开(公告)日：2025-05-22
申请号：US19026292
申请日：2025-01-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guohe Liu , Junyong Zhang , Zesheng Chen , Hu He
IPC: H10K59/131 , H10D86/40 , H10K59/121 , H10K59/40 , H10K59/80 , H10K102/00
Abstract: Embodiments of this application disclose a display panel and a preparation method thereof, and an electronic device, and relate to the field of display technologies, to improve display brightness uniformity of a display panel. The display panel includes: a backplane, an anode layer and a transfer electrode that are located on the backplane, a light emission function layer and a cathode layer that are located on the anode layer and the transfer electrode and that are sequentially stacked, a cathode suppression layer, and an auxiliary cathode. The backplane includes an auxiliary signal line, configured to reduce a voltage drop of the cathode layer. The transfer electrode and the anode layer are disposed on a same layer, and the transfer electrode is electrically connected to the auxiliary signal line. The light emission function layer and the cathode layer are provided with a first opening.
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公开(公告)号：US20250022409A1
公开(公告)日：2025-01-16
申请号：US18901998
申请日：2024-09-30
Applicant: Huawei Technologies Co., Ltd.
IPC: G09G3/32
Abstract: A drive circuit and a display device are provided. Changes in control electrode voltages of switching transistors do not couple a control electrode voltage of a drive transistor. The drive circuit may support different levels of image refresh frequencies at the same time, and implement seamless switching between different image refresh frequencies. The drive circuit may include a storage capacitor, the drive transistor, and the switching transistors. The drive transistor may be configured to control a drive current of the light-emitting diode, and the switching transistors may control the control electrode voltage of the drive transistor and compensate for a threshold voltage of the drive transistor. Other embodiments are described herein.
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Patent Agency Ranking
公开(公告)号：US20200372850A1
公开(公告)日：2020-11-26
申请号：US16643395
申请日：2017-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hu He , Haiming He , Chun Yen Liu
Abstract: A display includes a display panel and at least one display driver chip. The display panel includes a display area and a non-display area surrounding the display area. The display area includes a planar area and a curved bending area located on at least one side of the planar area, where a longitudinal direction of each data signal line is perpendicular to a longitudinal direction of the side of the planar area on which the curved bending area is arranged, and each data signal line extends to a non-display area on the side of the curved bending area of the display area. The display driver chip is connected to data signal lines by using a chip-on-film, and the display driver chip is located in concave space.
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公开(公告)号：US12262588B2
公开(公告)日：2025-03-25
申请号：US17775023
申请日：2020-11-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dong Chen , Cong Huang , Shipeng Chi , Ruhai Fu , Hu He
IPC: H10K59/121 , H10K59/126 , H10K59/65
Abstract: This application provides a display panel and an electronic device. A display region of the display panel is divided into at least two pixel regions. The pixel region includes at least two subpixels. The display region includes a first display region and a second display region. Subpixel density of the first display region is less than that of the second display region. In the first display region, at least some adjacent pixel regions have different structures. By changing structures of at least some pixel regions in the first display region, an arrangement rule of structures in pixel regions in the first display region is changed to some extent, and form a long-period diffraction grating or an aperiodic diffraction grating, so that a diffraction phenomenon caused by light passing through the display panel can be mitigated.
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公开(公告)号：US11039006B2
公开(公告)日：2021-06-15
申请号：US16652474
申请日：2017-11-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hu He
IPC: G09G5/00 , H04M1/72469 , H04W4/60 , G06F3/0481 , G06F3/0482
Abstract: A display panel module includes an organic light-emitting diode panel (OLED), a touch panel, and a bifurcated chip on film (COF). An OLED panel connection area is disposed at a first location on a first side of the OLED panel, and a touch panel connection area is disposed at a first location on a first side of the touch panel. The OLED panel connection area and the touch panel connection area are located at a same side of the display panel module. One bifurcated terminal of the bifurcated COF is connected to the OLED panel connection area, and the other bifurcated terminal of the bifurcated end of the bifurcated COF is connected to the touch panel connection area. The other end of the bifurcated COF is connected to a main flexible printed circuit. A chip of the bifurcated chip on film COF is a touch and display driver chip.
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公开(公告)号：US12087201B2
公开(公告)日：2024-09-10
申请号：US17919000
申请日：2021-03-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hu He , Shipeng Chi , Ruhai Fu , Chaorong Liang , Chiaching Chu , Zhongyu He
IPC: G09G3/20
CPC classification number: G09G3/2007 , G09G2320/0233 , G09G2320/0626 , G09G2360/144 , G09G2360/16
Abstract: A display screen adjustment method and apparatus, and a device are provided. A display screen includes a first display area and a second display area, a camera component is disposed under the first display area, and light transmittance of the first display area is higher than light transmittance of the second display area. The adjustment method includes: collecting present ambient illuminance on a terminal; and when the ambient illuminance is lower than an ambient illuminance threshold, adjusting, based on a first ambient light adaptation adjustment curve, luminance corresponding to grayscale 255 of the first display area to first luminance, and adjusting, based on a second ambient light adaptation adjustment curve, luminance corresponding to grayscale 255 of the second display area to second luminance, where the first luminance is approximately equal to the second luminance.
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公开(公告)号：US11195448B2
公开(公告)日：2021-12-07
申请号：US16643395
申请日：2017-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hu He , Haiming He , Chun Yen Liu
Abstract: A display includes a display panel and at least one display driver chip. The display panel includes a display area and a non-display area surrounding the display area. The display area includes a planar area and a curved bending area located on at least one side of the planar area, where a longitudinal direction of each data signal line is perpendicular to a longitudinal direction of the side of the planar area on which the curved bending area is arranged, and each data signal line extends to a non-display area on the side of the curved bending area of the display area. The display driver chip is connected to data signal lines by using a chip-on-film, and the display driver chip is located in concave space.
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