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公开(公告)号：US20240188328A1
公开(公告)日：2024-06-06
申请号：US18040983
申请日：2022-04-28
发明人： Yang Zhang , Qinghe Wang , Haitao Wang , Duoduo Wang , Shan Liu , Xiaodong Zhang
IPC分类号： H10K59/121 , H10K59/122 , H10K59/124 , H10K59/131
CPC分类号： H10K59/1213 , H10K59/1216 , H10K59/122 , H10K59/124 , H10K59/1315
摘要： A display substrate and a display device are provided. The display substrate includes: a plurality of pixel units arranged on a base substrate; a first conductive layer, a semiconductor layer, a second conductive layer and a pixel definition layer sequentially arranged on the base substrate. A pixel driving circuit includes a sensing transistor, a storage capacitance and a capacitance wire. A source electrode and a drain electrode of the sensing transistor are located in the second conductive layer, a second capacitance electrode of the storage capacitance and the capacitance wire are located in the first conductive layer. The capacitance wire includes a capacitance wire body portion extending in a second direction. For one same sub-pixel, an orthographic projection of the capacitance wire body portion of the pixel driving circuit thereof on the base substrate is spaced apart from that of the light emitting region thereof on the base substrate.
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公开(公告)号：US11929031B2
公开(公告)日：2024-03-12
申请号：US17778597
申请日：2021-01-15
发明人： Guangyao Li , Zheng Liu , Haitao Wang , Jun Wang , Dongfang Wang
IPC分类号： G09G3/3233 , G09G3/20 , G09G3/3266 , G11C19/28 , G09G3/00
CPC分类号： G09G3/3266 , G09G3/2096 , G09G3/3233 , G11C19/28 , G09G3/006 , G09G2300/0408 , G09G2300/043 , G09G2300/0842 , G09G2310/0286 , G09G2310/08 , G09G2330/021
摘要： Provided are a display substrate and a detection method therefor, and a display apparatus. Compensation sub-circuits that are in one-to-one correspondence with each stage of a shift register are arranged in a gate driving circuit, and a first capacitor in each compensation sub-circuit is thus charged under the control of a detection input circuit when each stage of the shift register outputs a signal stage by stage; and an output control circuit is used to disconnect the compensation sub-circuit from a pull-up node of the corresponding stage of the shift register. The triggering of each stage of the shift register is stopped after each stage of the shift register (CR(n)) completes outputting, and the output control circuit provides a signal of a first power voltage end to the pull-up node of the corresponding stage of the shift register under the control of a second control end and the first capacitor.
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公开(公告)号：US11700688B2
公开(公告)日：2023-07-11
申请号：US17183909
申请日：2021-02-24
发明人： Yongchao Huang , Qinghe Wang , Haitao Wang , Jun Liu , Jun Cheng , Ce Zhao , Liangchen Yan
CPC分类号： H05K1/09 , H05K3/04 , H05K2201/10128
摘要： The present disclosure provides a display substrate, a method for manufacturing the display substrate, and a display device. The display substrate includes a first conductive line extending in a first direction on a base substrate, a second conductive line extending in a second direction crossing the first direction on the base substrate, and an insulation layer arranged between the first conductive line and the second conductive line. The display substrate further includes a buffer layer arranged between the first conductive line and the base substrate, a groove extending in the first direction is formed in the buffer layer, the first conductive line is arranged in the groove, and a surface of the first conductive line away from the base substrate is flush with a surface of the buffer layer away from the base substrate.
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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
发明人： Guangyao Li , Yuankui Ding , Liusong Ni , Jun Wang , Haitao Wang , Dongfang Wang
摘要： 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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公开(公告)号：US11075227B2
公开(公告)日：2021-07-27
申请号：US16556779
申请日：2019-08-30
发明人： Jun Wang , Dongfang Wang , Haitao Wang , Guangyao Li , Yingbin Hu , Yang Zhang , Qinghe Wang , Liangchen Yan
IPC分类号： H01L27/12 , H01L27/02 , H01L29/786
摘要： 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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6.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
发明人： Jun Wang , Dongfang Wang , Liangchen Yan , Guangyao Li , Haitao Wang , Qinghe Wang , Yingbin Hu , Yang Zhang , Tongshang Su
摘要： 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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公开(公告)号：US20200273939A1
公开(公告)日：2020-08-27
申请号：US16665410
申请日：2019-10-28
发明人： Haitao Wang , Qinghe Wang , Jun Wang , Guangyao Li , Yang Zhang , Jun Liu , Dongfang Wang
IPC分类号： H01L27/32
摘要： Disclosed are an array substrate, a method for fabricating the same, a display panel, and a display device, and the array substrate includes: an underlying substrate, and gate lines and data lines located on the underlying substrate, and intersecting with each other, a layer where the gate lines are located is between a layer where the data lines are located, and the underlying substrate; and the array substrate further includes a buffer layer located between the underlying substrate and the layer where the gate lines are located; and the buffer layer includes a plurality of through-holes, where orthographical projections of the through-holes onto the underlying substrate cover orthographical projections of the areas where the gate lines intersect with the data lines, onto the underlying substrate.
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公开(公告)号：US11980058B2
公开(公告)日：2024-05-07
申请号：US17486790
申请日：2021-09-27
发明人： Haitao Wang , Qinghe Wang , Jun Wang , Tongshang Su , Jun Cheng
IPC分类号： H10K59/121 , H10K59/12 , H10K59/126 , H10K59/131 , H10K71/00
CPC分类号： H10K59/1213 , H10K59/1216 , H10K59/126 , H10K59/131 , H10K71/00 , H10K59/1201
摘要： A display substrate, a preparation method thereof, and a display apparatus are provide. The display substrate includes: a base substrate, an active layer disposed on the base substrate, a first gate insulating layer disposed on the active layer, a first conductive layer disposed on the first gate insulating layer, and a second conductive layer disposed on the first conductive layer and electrically connected with the first conductive layer; an orthographic projection of the first conductive layer on the base substrate does not overlap with an orthographic projection of the active layer on the base substrate; the second conductive layer includes gates; orthographic projections of the gates on the base substrate and the orthographic projection of the active layer on the base substrate have an overlap area; and the display substrate further includes: at least one insulating layer located between the first conductive layer and the gates.
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公开(公告)号：US11386820B2
公开(公告)日：2022-07-12
申请号：US17040913
申请日：2020-04-21
发明人： Guangyao Li , Dongfang Wang , Jun Wang , Haitao Wang , Chaowei Hao , Bo Feng , Rong Liu , Wei Cai , Biao Luo , Xuechao Sun , Xuehai Gui , Qibin Liang , Yanfei Wan , Jin Su
IPC分类号： G09G3/3233 , G09G3/00 , G09G3/3225
摘要： A method of detecting threshold voltage shift and a threshold voltage shift detection device are provided. The method is applied to a pixel driving circuit which I is electrically coupled to a control line, a voltage line and a detection node, respectively. The method includes: in a detection cycle including a setting phase and a detection phase, in the setting phase, controlling a transistor included in the pixel driving circuit to be in a biased state; in the detection phase, providing a preset control voltage signal to the control line, providing a preset voltage signal to the voltage line, and determining a threshold voltage shift state of the transistor according to an electric potential of the detection node.
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10.发明授权公开(公告)号：US11011644B2
公开(公告)日：2021-05-18
申请号：US16506216
申请日：2019-07-09
发明人： Guangyao Li , Lei Huang , Haitao Wang , Jun Wang , Qinghe Wang , Wei Li , Dongfang Wang , Liangchen Yan
IPC分类号： H01L27/12 , H01L29/786 , G01N27/00 , H01L29/66
摘要： The present disclosure provides a thin film transistor, a thin film transistor array, and a method for detecting an object to be detected, wherein the thin film transistor is configured to detect a parameter of an object to be detected bound with a metal ion and includes an active layer, wherein: a carrier of the active layer without a metal element contained in the metal ion bound is of a first mobility, and a carrier of the active layer with the metal element bound is of a second mobility different from the first mobility.
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