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公开(公告)号：US20220384677A1
公开(公告)日：2022-12-01
申请号：US17776127
申请日：2021-03-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuju CHEN
Abstract: A micro light-emitting diode (μLED) chip includes a first electrode layer, a second semiconductor layer located on a surface of the first electrode layer, and a first semiconductor layer located on a side of the second semiconductor layer away from the first electrode layer, and a light-emitting layer located between the first semiconductor layer and the second semiconductor layer. The second semiconductor is electrically connected to the first electrode layer, and is configured to transmit first carriers. The first semiconductor layer is configured to transmit second carriers. The light-emitting layer is configured to be excited to emit light upon combination of the first carriers and the second carriers. A surface of the first semiconductor layer away from the light-emitting layer is a concave-convex microstructure, and convex portions of the concave-convex microstructure are configured to receive an electron beam.
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公开(公告)号：US20210098278A1
公开(公告)日：2021-04-01
申请号：US17026675
申请日：2020-09-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju CHEN
IPC: H01L21/683 , H01L25/075 , H01L33/00 , 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：US20250085781A1
公开(公告)日：2025-03-13
申请号：US18247367
申请日：2022-04-29
Inventor： Yuju CHEN
IPC: G06F3/01 , G02F1/1333 , G06F3/044
Abstract: A tactile reproduction display panel and a display apparatus including the same. The tactile reproduction display panel includes a display panel and a plurality of piezoelectric vibration devices; the display panel includes a base substrate and a plurality of pixel units on the base substrate; each of the piezoelectric vibration devices comprises a driver electrode structure and a piezoelectric layer, and the driver electrode structure is configured to drive the piezoelectric layer to deform so as to generate vibration; the display panel comprises a light exiting surface, the light exiting surface has a first side and a second side in a direction perpendicular to the base substrate, the light exiting surface is configured to emit light to the first side, and the plurality of piezoelectric vibration devices are at the second side of the light exiting surface.
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公开(公告)号：US20240248536A1
公开(公告)日：2024-07-25
申请号：US18040032
申请日：2022-02-24
Inventor： Yongchun TAO , Yuju CHEN , Yingzi WANG
Abstract: Disclosed is a virtual haptic assembly and a virtual haptic system. The virtual haptic assembly includes a display screen; an actuator on a light emitting side of the display screen, where the actuator includes a touch panel and a piezoelectric sensor, the touch panel includes a touch area and a non-touch area on at least one side of the touch area, the piezoelectric sensor is located on one side of the touch panel facing the display screen, and the piezoelectric sensor is configured to drive the touch panel to vibrate to form haptic feedback in response to interactive information of a user; and a first cushion, fixed between the display screen and the actuator, where an orthographic projection of the first cushion on the touch panel is located in the non-touch area.
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公开(公告)号：US20230185378A1
公开(公告)日：2023-06-15
申请号：US17615395
申请日：2021-02-22
Inventor： Yuju CHEN , Hui HUA , Xiaotong LIU , Yongchun TAO , Jijing HUANG
IPC: G06F3/01 , G06F3/04886
CPC classification number: G06F3/016 , G06F3/04886
Abstract: The application provides a haptic feedback method and apparatus for virtual keys, and an electronic device, and relates to the field of piezoelectric techniques. A touch display panel is controlled to display at least one virtual key, a touch position detected by the touch display panel is acquired, a target waveform parameter is determined according to a positional relationship between the touch position and each region in a target area corresponding to a target virtual key, and a target drive signal is generated according to the target waveform parameter and is sent to a piezoelectric element. The target area corresponding to the target virtual key is divided into multiple regions, and different drive signals are provided to drive the piezoelectric element to vibrate when the fingers of users touch different regions, such that the users may feel the boundary of the virtual key when moving their fingers on the surface of the touch display panel, and the virtual key has more realistic haptic feedback.
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Patent Agency Ranking
公开(公告)号：US20230152893A1
公开(公告)日：2023-05-18
申请号：US17620590
申请日：2021-02-26
Inventor： Yongchun TAO , Yuju CHEN , Hui HUA , Xiaotong LIU , Xiaofeng YIN
CPC classification number: G06F3/016 , G06F3/0416 , B06B1/0215 , B06B1/0622 , G06F3/0412
Abstract: The present disclosure provides a haptic reproduction system and a driving method, and relates to the technical field of haptic reproduction. The haptic reproduction system is able to realize haptic reproduction, and comprises: a touch display device, an upper computer and a waveform generator. The touch display device comprises a piezoelectric unit, a touch display panel and a touch driving unit. The piezoelectric unit is disposed on the touch display panel. The touch driving unit is electrically connected to the touch display panel and the upper computer, and is configured to acquire touch information and transmit the touch information to the upper computer. The upper computer is electrically connected to the waveform generator, and is configured to send a first waveform generation instruction to the waveform generator according to the touch information. The waveform generator is configured to generate a first waveform signal according to the first waveform generation instruction. The piezoelectric unit is electrically connected to the waveform generator, and is configured to resonate with the touch display panel under the drive of the first waveform signal so as to change the friction on a touch surface of the touch display device.
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公开(公告)号：US20220344315A1
公开(公告)日：2022-10-27
申请号：US17763645
申请日：2021-03-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuju CHEN
Abstract: A manufacturing method fora 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：US20220285417A1
公开(公告)日：2022-09-08
申请号：US17665802
申请日：2022-02-07
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaotong LIU , Yuju CHEN
IPC: H01L27/146 , G06V40/13
Abstract: Disclosed are a photosensitive assembly, a method for manufacturing the same, and an electronic device. The photosensitive assembly includes a light-transmissive substrate, a light sensor, and a vibration member. The light sensor is disposed on a side of the light-transmissive substrate, and the vibration member is configured to drive the light-transmissive substrate to vibrate, such that a photosensitive area of the light-transmissive substrate is in an undulated shape.
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公开(公告)号：US20220269347A1
公开(公告)日：2022-08-25
申请号：US17515192
申请日：2021-10-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju CHEN
IPC: G06F3/01 , H01L41/053 , H01L41/09 , H01L41/27
Abstract: A vibrator, a manufacturing method thereof, a haptical sensation reproduction apparatus and a vibration waveform detection method, and relates to the technical field of display. The vibrator comprises a substrate, and a piezoelectric component and a light-emitting component located on the substrate, wherein the piezoelectric component comprises an inverse piezoelectric unit, the light-emitting component comprises a direct piezoelectric unit and a light-emitting unit, and the inverse piezoelectric unit is in contact and connected with the direct piezoelectric unit. The vibrator of this solution may be disposed in a touch-control reproduction screen, the inverse piezoelectric unit in the vibrator is driven to deform to generate vibrations, and the direct piezoelectric unit in contact and connection therewith is driven to deform to generate a current to drive the light-emitting unit to emit light.
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30.发明申请公开(公告)号：US20220238782A1
公开(公告)日：2022-07-28
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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