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公开(公告)号：US11594162B2
公开(公告)日：2023-02-28
申请号：US17435297
申请日：2021-01-06
Inventor： Guangyao Li , Yuankui Ding , Liusong Ni , Jun Wang , Haitao Wang , Dongfang Wang
Abstract: The present disclosure provides a method for detecting a display substrate and a device for detecting a display substrate. The method includes: exciting a threshold voltage of a driving transistor in each pixel driving circuit in the display substrate, so that the threshold voltage of the driving transistor with a shifted threshold voltage is further shifted; inputting a detection signal to each pixel driving circuit in the display substrate, where the detection signal is a signal enabling the pixel driving circuit to operate normally; and judging whether the display substrate is normal or not according to the voltage output by each pixel driving circuit.
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22.发明授权公开(公告)号：US11244970B2
公开(公告)日：2022-02-08
申请号：US15768297
申请日：2017-08-24
Inventor： Zhonghao Huang , Yongliang Zhao , Jun Wang , Yutong Yang , Jianfei Shi , Baosheng He , Xu Wu
IPC: H01L29/04 , H01L27/12 , H01L29/66 , H01L29/786 , H01L21/768 , H01L21/027 , H01L21/441 , H01L21/84
Abstract: The present application discloses a thin film transistor. The thin film transistor includes a base substrate; an active layer; an etch stop layer on a side of the active layer distal to the base substrate; and a source electrode and a drain electrode on a side of the etch stop layer distal to the active layer. The active layer includes a channel region, a source electrode contact region, and a drain electrode contact region. An orthographic projection of the etch stop layer on the base substrate surrounds an orthographic projection of the drain electrode contact region on the base substrate. An orthographic projection of the source electrode contact region on the base substrate at least partially peripherally surrounding the orthographic projection of the etch stop layer on the base substrate.
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公开(公告)号：US20220013669A1
公开(公告)日：2022-01-13
申请号：US17199521
申请日：2021-03-12
Inventor： Jun Wang , Zhonghao HUANG
IPC: H01L29/786 , H01L27/12 , H01L29/66
Abstract: An array substrate, a display device and a fabrication method are provided. The array substrate includes a first metal layer at one side of a base substrate, the first metal layer including a light shielding part, a source, a drain in a display area; a second metal layer at a side, facing away from an active layer, of gate insulating layer, the second metal layer includes a gate, a source-landing electrode a drain-landing electrode in the display area, the source-landing electrode is in contact with the active layer and the source through a first via hole penetrating through the gate insulating layer and a buffer layer and exposing one end of the active layer, the drain-landing electrode is in contact with the active layer and the drain through a second via hole penetrating through the gate insulating layer and the buffer layer and exposing other end of the active layer.
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公开(公告)号：US20210384305A1
公开(公告)日：2021-12-09
申请号：US17182521
申请日：2021-02-23
Inventor： Jun Wang , Zhonghao Huang , Maokun Tian , Yongliang Zhao
IPC: H01L29/417 , H01L27/12
Abstract: A thin-film transistor, an array base plate and a display panel, wherein the thin-film transistor includes a semiconductor layer, a source metal layer and a drain metal layer, the semiconductor layer includes a first region, a first end of the first region extends in a first direction to form a second region, and a second end of the first region extends in the first direction to form a third region; and both of the source metal layer and the drain metal layer extend in the first direction, the source metal layer covers the first end and at least part of the second region, and the drain metal layer covers the second end and at least part of the third region.
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25.发明申请公开(公告)号：US20210328066A1
公开(公告)日：2021-10-21
申请号：US16330860
申请日：2018-05-03
Inventor： Jun Wang , Zhonghao Huang , Yongliang Zhao , Seungmoo Rim
IPC: H01L29/786 , H01L29/66
Abstract: The present application provides a thin film transistor having an active layer. The active layer includes a source electrode contact part, a drain electrode contact part, and a channel part between the source electrode contact part and the drain electrode contact part. The channel part includes at least a first portion and a second portion different from the first portion. The second portion has an enhanced ability to capture off-state leaking carriers as compared to the first portion.
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Patent Agency Ranking
公开(公告)号：US11114013B2
公开(公告)日：2021-09-07
申请号：US17094737
申请日：2020-11-10
Inventor： Qing Li , Liugang Zhou , Ke Dai , Yizhan Han , Liu He , Yunyun Liang , Jun Wang , Zhenlin Qu , Jianwei Sun , Yulong Xiong , Tao Li , Yu Quan , Xiaofeng Yin , Qian Zhou , Pengjun Fang
IPC: G09G3/20
Abstract: A display driving device, a display driving method, a display module and a display device are provided. The display driving device includes: a PWM signal generating circuit configured to generate a PWM signal; a PWM signal acquisition circuit, configured to identify whether the PWM signal output by the PWM signal generating circuit is at a high level or a low level; a gamma voltage debugging circuit, configured to debug a gamma voltage to obtain a first group of gamma voltage reference data corresponding to the PWM signal at the high level and a second group of gamma voltage reference data corresponding to the PWM signal at the low level in each gray-scale image; and a gamma voltage switching circuit.
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公开(公告)号：US11075227B2
公开(公告)日：2021-07-27
申请号：US16556779
申请日：2019-08-30
Inventor： Jun Wang , Dongfang Wang , Haitao Wang , Guangyao Li , Yingbin Hu , Yang Zhang , Qinghe Wang , Liangchen Yan
IPC: H01L27/12 , H01L27/02 , H01L29/786
Abstract: A display substrate, a method for manufacturing the display substrate, and a display device are provided. The display substrate includes a display area and a fanout area at the periphery of the display area. The fanout area includes a data line layer, a first power line layer, and at least two insulation layers between the data line layer and the first power line layer. In a direction perpendicular to a base substrate of the display substrate, the first power line layer overlaps the data line layer. At least one of the at least two insulation layers includes a portion which insulates the first power line layer and the data line layer from each other.
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公开(公告)号：US20210223694A1
公开(公告)日：2021-07-22
申请号：US16094421
申请日：2018-03-26
Inventor： Jun Wang , Guangcai Yuan , Dongfang Wang , Chong Fang , Guangyao Li
Abstract: A film patterning method, an array substrate, and a manufacturing method of an array substrate are disclosed. The film patterning method includes: applying photoresist on a film to be patterned; performing exposure and development on the photoresist, a region corresponding to a completely removed portion of the photoresist after the exposure and the development being a first region; post-baking the photoresist, so that the photoresist is melted and collapsed to change the region corresponding to the completely removed portion into a second region, the photoresist after post-baking forms into a mask pattern; and patterning the film by using the mask pattern as a mask.
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公开(公告)号：US20210097950A1
公开(公告)日：2021-04-01
申请号：US16994891
申请日：2020-08-17
Inventor： Ke Dai , Yunyun Liang , Liugang Zhou , Zhenlin Qu , Liu He , Qing Li , Jun Wang , Yu Quan , Xiaofeng Yin , Liwei Zhou , Lin Zhang , Tao Li , Yulong Xiong
Abstract: The present disclosure provides a driving circuit and driving method for a liquid crystal display panel, and a display device. The driving circuit includes: a signal collector, configured to collect a backlight control signal; and a timing control chip, configured to determine whether a BLU is in the bright state time period or in the dark state time period, and retrieve a first gate control signal from a memory chip and output the first gate control signal to a gate driving circuit, when determining that the BLU is in the bright state time period, or retrieve a second gate control signal from the memory chip and output the second gate control signal to the gate driving circuit, when determining that the BLU is in the dark state time period.
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30.发明申请公开(公告)号：US20210012692A1
公开(公告)日：2021-01-14
申请号：US16898581
申请日：2020-06-11
Inventor： Jun Wang , Dongfang Wang , Liangchen Yan , Guangyao Li , Haitao Wang , Qinghe Wang , Yingbin Hu , Yang Zhang , Tongshang Su
Abstract: Embodiments of the present disclosure provide a method and a device for detecting a threshold voltage drift of a transistor in a pixel circuit, which are used for detecting the threshold voltage drift of the transistor to be detected in the pixel circuit. The transistor to be detected is at least one of the driving transistor and the detection transistor. The detection method comprises: inputting, during an inputting stage, a first turning-on voltage to the second scanning terminal, so as to turn on the detection transistor, enabling writing a first voltage into the second node through the detection signal terminal; inputting, during a detection stage, a first turning-off voltage to the second scanning terminal, so as to turn off the detection transistor, thereby detecting an actual voltage at the second node; and determining a state of the threshold voltage drift of the transistor to be detected according to the actual voltage and the first voltage.
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