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公开(公告)号：US20210049964A1
公开(公告)日：2021-02-18
申请号：US16856803
申请日：2020-04-23
发明人： Zhidong Yuan , Yongqian Li , Can Yuan , Chao Jiao
IPC分类号： G09G3/3258
摘要： The present disclosure discloses a pixel circuit and a method of controlling the same. The pixel circuit includes: a light-emitting control sub-circuit, configured to transmit a data voltage at a data signal terminal to a first node under control of a first control terminal; a driving sub-circuit, configured to transmit a first power supply voltage at a first power supply terminal VDD to a second node N2 under control of a voltage at the first node; a first sensing sub-circuit, configured to maintain a voltage at the second node to be at a fixed level under control of the first control terminal; a second sensing sub-circuit, configured to transmit the voltage at the second node to a first sensing signal terminal under control of a second control terminal, so that the first sensing signal terminal senses a voltage associated with a threshold voltage of the driving sub-circuit.
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公开(公告)号：US11900873B2
公开(公告)日：2024-02-13
申请号：US17439522
申请日：2021-02-09
发明人： Zhidong Yuan , Yongqian Li , Meng Li , Can Yuan , Min He , Chao Jiao
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/0297 , G09G2310/08
摘要： This application relates to display panels, methods of driving the same, and display devices. The display panel includes: a first pixel circuit and a demultiplexing circuit. The first pixel circuit includes a first reset circuit, a first data writing circuit, and a first drive circuit. A first terminal of the first reset circuit is connected to a first terminal of the first drive circuit. A second terminal of the first reset circuit is connected to a first multiplexing signal line. A control terminal of the first drive circuit is connected to a first terminal of the first data writing circuit. A second terminal of the first data writing circuit is connected to the first multiplexing signal line. The demultiplexing circuit includes a first control circuit and a second control circuit. A first terminal of the first control circuit is connected to the first multiplexing signal line. A second terminal of the first control circuit is used for receiving a reset signal. A first terminal of the second control circuit is connected to the first multiplexing signal line. A second terminal of the second control circuit is used for receiving a first data signal.
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公开(公告)号：US11107410B2
公开(公告)日：2021-08-31
申请号：US16856803
申请日：2020-04-23
发明人： Zhidong Yuan , Yongqian Li , Can Yuan , Chao Jiao
IPC分类号： G09G3/3258
摘要： The present disclosure discloses a pixel circuit and a method of controlling the same. The pixel circuit includes: a light-emitting control sub-circuit, configured to transmit a data voltage at a data signal terminal to a first node under control of a first control terminal; a driving sub-circuit, configured to transmit a first power supply voltage at a first power supply terminal VDD to a second node N2 under control of a voltage at the first node; a first sensing sub-circuit, configured to maintain a voltage at the second node to be at a fixed level under control of the first control terminal; a second sensing sub-circuit, configured to transmit the voltage at the second node to a first sensing signal terminal under control of a second control terminal, so that the first sensing signal terminal senses a voltage associated with a threshold voltage of the driving sub-circuit.
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公开(公告)号：US11094253B2
公开(公告)日：2021-08-17
申请号：US16840176
申请日：2020-04-03
发明人： Zhidong Yuan , Taejin Kim , Yongqian Li , Lin Sun , Chao Jiao , Can Yuan , Zehua Ding , Xuehuan Feng , Meng Li
IPC分类号： G09G3/3233
摘要： A pixel driving circuit, array substrate, display device and method for driving the pixel driving circuit are provided, the circuit includes: a control terminal and a first terminal of a driving switch circuit are respectively coupled to a first terminal of a data input switch circuit and an anode of a light-emitting device, and two terminals of a storage capacitor are respectively coupled to the control terminal of the driving switch circuit and the anode of the light-emitting device, two terminals of an intrinsic capacitor are respectively coupled to a cathode and the anode of the light-emitting device, a first terminal and a second terminal of a reset switch circuit are respectively coupled to the anode and the cathode of the light-emitting device, a capacitance of the intrinsic capacitor is greater than or equal to a preset multiple of a capacitance of the storage capacitor.
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公开(公告)号：US11424193B2
公开(公告)日：2022-08-23
申请号：US16605494
申请日：2019-04-10
IPC分类号： H01L23/544 , H01L27/12
摘要： Disclosed herein is a substrate of a display panel, comprising: a support; a first alignment mark on the support; a first dielectric layer covering the first alignment mark; an auxiliary alignment mark aligned with the first alignment mark, wherein the auxiliary alignment mark comprises a recess into the first dielectric layer. Further disclosed herein is a display panel comprising the substrate, and a system comprising the display panel. Also disclosed herein is a method comprising: forming a first alignment mark on a support; forming a first dielectric layer covering the first alignment mark; and forming an auxiliary alignment mark aligned with the first alignment mark; wherein the auxiliary alignment mark comprises a recess into the first dielectric layer.
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