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公开(公告)号：US12224274B2
公开(公告)日：2025-02-11
申请号：US17763645
申请日：2021-03-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuju Chen
Abstract: A manufacturing method for a micro light-emitting diode (LED) display panel includes: providing a base substrate carrying a plurality of LED dies, each LED die including a first semiconductor layer, a light-emitting material layer, a second semiconductor layer and a first conductive layer, the first semiconductor layer being bonded with the base substrate through a sacrificial layer, a material of the sacrificial layer being decomposable under laser irradiation; providing a backplane having a plurality of bonding structures; bonding at least some LED dies of the plurality of LED dies to at least some of the plurality of bonding structures through respective first conductive layers; and peeling each of the at least some LED dies from the base substrate through laser lift-off.
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公开(公告)号：US12029069B2
公开(公告)日：2024-07-02
申请号：US17486754
申请日：2021-09-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju Chen
IPC: H10N30/80 , B06B1/06 , H10K50/818 , H10K59/00 , H10K71/00 , H10N30/045 , H10N30/076 , H10N30/082 , H10N30/853 , H10N30/87 , H10K102/00
CPC classification number: H10K59/00 , B06B1/0622 , H10K50/818 , H10K71/00 , H10N30/045 , H10N30/076 , H10N30/082 , H10N30/8554 , H10N30/877 , H10K2102/00 , H10K2102/3026
Abstract: A display module and a fabrication method thereof, and a display device, and relates to the field of display technologies, to synchronously implement a display function and a surface tactile reproduction function. The display module includes: a base substrate, a plurality of piezoelectric structures positioned on a first side of the base substrate, and at least one isolation portion positioned on the first side of the base substrate and configured to separate any two adjacent piezoelectric structures. A pixel hole is arranged in at least one of three positions, i.e., a position of the piezoelectric structure, a position of the isolation portion, and a position between the piezoelectric structure and the isolation portion. The display module also includes a plurality of pixel structures, and each of the plurality of pixel structures is positioned in one of the pixel holes.
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公开(公告)号：US11847263B2
公开(公告)日：2023-12-19
申请号：US17620538
申请日：2021-02-26
Inventor： Hui Hua , Yuju Chen , Xiaofeng Yin
CPC classification number: G06F3/016 , B06B1/0622
Abstract: The present disclosure provides a haptic feedback base plate, a haptic feedback apparatus and a haptic feedback method. The haptic feedback base plate comprises: a substrate and a deformation unit disposed on one side of the substrate. The deformation unit comprises a first electrode, a piezoelectric material layer and a second electrode that are arranged in a stacked manner, the first electrode is arranged close to the substrate, the first electrode and the second electrode are configured to form an alternating electric field, and the piezoelectric material layer vibrates under the effect of the alternating electric field and drives the substrate to resonate, wherein a difference between a frequency of the alternating electric field and an inherent frequency of the substrate is less than or equal to a preset threshold.
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公开(公告)号：US11556178B2
公开(公告)日：2023-01-17
申请号：US17333445
申请日：2021-05-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuju Chen
Abstract: A haptic feedback method includes: driving a haptic feedback film layer to switch between at least two vibration modes, wherein the at least two vibration modes include a first vibration mode and a second vibration mode, a first position is different from a second position in a first direction, and the first position is a position of a first point when the haptic feedback film layer vibrates in the first vibration mode, and the second position is a position of the first point when the haptic feedback film layer vibrates in the second vibration mode.
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15.发明授权公开(公告)号：US11522121B2
公开(公告)日：2022-12-06
申请号：US17485227
申请日：2021-09-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hui Hua , Yuju Chen , Xiaofeng Yin
IPC: H01L41/047 , G06F3/01 , H02N2/00
Abstract: A tactile reproduction device, a method for driving the same, and a tactile reproduction apparatus. Tactile reproduction device may simulate textures to implement tactile reproduction. tactile reproduction device includes a plurality of piezoelectric units, includes: first electrode, piezoelectric section, and second electrode which are laminated, wherein the second electrode includes: first comb electrode and second comb electrode; the first comb electrode includes: a plurality of first comb-teeth electrodes and a first comb-shank electrode connecting the plurality of first comb-teeth electrodes; the second comb electrode includes: a plurality of second comb-teeth electrodes and a second comb-shank electrode connecting the plurality of second comb-teeth electrodes; the plurality of first comb-teeth electrodes and the plurality of second comb-teeth electrodes are mutually intersected; the first electrode includes a plurality of electrode units which are not connected to each other. The present disclosure is applicable to the production of tactile reproduction devices.
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Patent Agency Ranking
公开(公告)号：US11335583B2
公开(公告)日：2022-05-17
申请号：US17026675
申请日：2020-09-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju Chen
IPC: H01L21/683 , H01L33/00 , H01L25/075 , H01L33/62
Abstract: The disclosure provides a mass transfer method and device for micro light emitting diode chips. The method includes the following steps: performing magnetic pole electroplating on the micro light emitting diode chips obtained by peeling off the sapphire substrate to enable corresponding magnetic poles to be generated at corresponding positions of the micro light emitting diode chips; peeling off the transfer substrate, and placing the micro light emitting diode chips obtained by peeling off the transfer substrate in a dispersion liquid to form a solution in which micro light emitting diode chips are dispersed; and the display substrate picks up the micro light emitting diode chips dispersed under the action of the magnetic field force.
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公开(公告)号：US11245051B2
公开(公告)日：2022-02-08
申请号：US16485988
申请日：2018-10-12
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju Chen
IPC: H01L33/00 , H01L25/075 , H01L27/12 , H01L33/46 , H01L33/62
Abstract: A method of fabricating a micro light emitting diode (micro LED) apparatus includes forming a first substrate including a first silicon layer, a second silicon layer, and a silicon oxide layer sandwiched between the first silicon layer and the second silicon layer; forming a plurality of micro LEDs on a side of the second silicon layer distal to the silicon oxide layer; bonding the first substrate having the plurality of micro LEDs with a second substrate; and removing the silicon oxide layer and the first silicon layer.
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公开(公告)号：US20240431209A1
公开(公告)日：2024-12-26
申请号：US18687413
申请日：2022-10-21
Inventor： Hui Hua , Yuju Chen , Yingzi Wang
Abstract: A tactile-feedback base board and a tactile-feedback device are provided by the embodiments of the present disclosure. The tactile-feedback base board includes a substrate and a piezoelectric element disposed at one side of the substrate, the piezoelectric element includes a first electrode, a piezoelectric material layer and a second electrode arranged in layer configuration, the first electrode is close to the substrate, the first electrode and the second electrode are for forming an alternating electric field, and the piezoelectric material layer is for, under an effect of the alternating electric field, vibrating, and driving the substrate to resonate; and an insulating and planarizing layer is disposed between the first electrode and the piezoelectric material layer and/or between the second electrode and the piezoelectric material layer.
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19.发明授权公开(公告)号：US12166155B2
公开(公告)日：2024-12-10
申请号：US17414724
申请日：2020-12-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju Chen
Abstract: The present disclosure discloses a display substrate, including a substrate, and a driver circuit, an insulation layer and a bonding electrode sequentially superposed on the substrate. The bonding electrode is configured to be connected to an anode and a cathode of a micro inorganic light-emitting diode chip to be bonded. The display substrate further includes an elastic layer sandwiched between the bonding electrode and the insulation layer, the elastic layer having an orthographic projection on the substrate covering at least an orthographic projection of the bonding electrode on the substrate. The present disclosure provides a display panel, including the above display substrate, and further including a micro inorganic light-emitting diode chip having an anode and a cathode thereof connected to the bonding electrode on the display substrate.
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20.发明公开公开(公告)号：US20240302901A1
公开(公告)日：2024-09-12
申请号：US18665976
申请日：2024-05-16
Inventor： Yuju Chen
CPC classification number: G06F3/016 , G06F3/041 , G06T11/001
Abstract: The present disclosure provides a virtual haptic texture rendering method, a virtual haptic texture rendering device, a display device, and a storage medium. The method includes: obtaining a to-be-displayed visual image; converting the visual image into a grayscale image; performing multi-valued processing on the grayscale image to obtain a haptic response image, all pixels of the haptic response image being grouped into at least two grayscale regions, and different haptic parameters corresponding to different grayscale regions; and associating a first coordinate system of the visual image with a second coordinate system of the haptic response image to obtain an association relationship between the first coordinate system and the second coordinate system.
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