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公开(公告)号：US20230154407A1
公开(公告)日：2023-05-18
申请号：US17619829
申请日：2021-02-09
Inventor： Yongqian LI , Xuehuan FENG
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G2300/0426 , G09G2310/0202 , G09G2310/08 , G09G2300/0842 , G09G2300/0819 , G09G2320/0257 , G09G2330/021
Abstract: A pixel circuit, a driving method of pixel circuit, and a display device are provided. The pixel circuit includes: a light emitting device, a driving sub-circuit, an energy storage sub-circuit, a data writing sub-circuit and a pull-down sub-circuit; the data writing sub-circuit is configured to control a voltage signal on a data line to be written into a control end of the driving sub-circuit in response to a data writing control signal; a first end of the driving sub-circuit is electrically connected to a target node, a second end of the driving sub-circuit is electrically connected to a power supply voltage, and the driving sub-circuit is configured to control a conduction of the driving sub-circuit under a control of a voltage on a control end of the driving sub-circuit.
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公开(公告)号：US20230115948A1
公开(公告)日：2023-04-13
申请号：US17914929
申请日：2021-02-02
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pan XU , Yongqian LI , Yicheng LIN , Ling WANG , Guoying WANG , Xing ZHANG , Ying HAN , Dacheng ZHANG , Lang LIU , Chen XU
IPC: H10K59/126 , H10K71/00
Abstract: The present disclosure provides an array substrate, a display panel, a display device and a manufacturing method, for solving the problems in the prior art that the array substrate is larger in number of circuits, the area needed for punching is larger, and the high pixel resolution cannot be achieved easily. The array substrate comprises: an interlayer dielectric layer located at the side of the active layer distant from the buffer layer, the interlayer dielectric layer being provided with a via hole, the via hole comprising a first part and a second part, the orthographic projection of the first part on the base substrate being in contact with the orthographic projection of the second part on the base substrate, the first part of the via hole penetrating through the interlayer dielectric layer and the buffer layer and exposing part of the shading layer, and the second part penetrating through the interlayer dielectric layer and exposing at least part of the active layer; and a source/drain layer located at the side of the interlayer dielectric layer distant from the active layer.
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公开(公告)号：US20230091012A1
公开(公告)日：2023-03-23
申请号：US17439522
申请日：2021-02-09
Inventor： Zhidong YUAN , Yongqian LI , Meng LI , Can YUAN , Min HE , Chao JIAO
IPC: G09G3/3233
Abstract: 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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164.发明申请公开(公告)号：US20230084572A1
公开(公告)日：2023-03-16
申请号：US17798673
申请日：2021-11-10
Inventor： Xuehuan FENG , Yongqian LI
IPC: G09G3/3208
Abstract: A method for compensating display brightness, a circuit for compensating display brightness, and a display device are provided. The method for compensating display brightness is applicable to a display device. A first group of sub-pixel rows in the display device perform normal display and black frame insertion display in a same frame display period. A second group of sub-pixel rows in the display device perform normal display in a current frame display period and an adjacent next frame display period, and perform black insertion display in the adjacent next frame display period. A first interval period is provided between the current frame display period and the adjacent next frame display period. The method for compensating includes: compensating luminous brightness of the first group of sub-pixel rows and/or compensating luminous brightness of the second group of sub-pixel rows.
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165.发明申请公开(公告)号：US20220406253A1
公开(公告)日：2022-12-22
申请号：US17620212
申请日：2020-12-23
Inventor： Can YUAN , Yongqian LI , Zhidong YUAN
IPC: G09G3/3233
Abstract: A display apparatus, a display panel, and a driving method thereof, and a method of detecting a pixel circuit are described. The display panel of the present disclosure includes a pixel unit and a detection apparatus, and the pixel unit includes a pixel circuit and a light-emitting element. The pixel circuit includes a first transistor, a second transistor, a driving transistor, and a storage capacitor. The detection device is configured to: turn off the first transistor and the second transistor, and detect an amount of current leakage of the driving transistor leaked through the sensing line to obtain a first current leakage parameter; detect a first characteristic parameter of the driving transistor to obtain a first reference characteristic parameter; and determine a first target characteristic parameter according to the first current leakage parameter and the first reference characteristic parameter.
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Patent Agency Ranking
公开(公告)号：US20220398982A1
公开(公告)日：2022-12-15
申请号：US17635471
申请日：2020-12-26
Inventor： Zhidong YUAN , Pan XU , Can YUAN , Yongqian LI , Zhongyuan WU
IPC: G09G3/3266 , G09G3/3233 , G11C19/28
Abstract: An array substrate includes: a substrate, at least one gate driving circuit and at least one clock signal line that are located on a same side of the substrate. The gate driving circuit includes a plurality of cascaded shift registers located in different rows, the plurality of shift registers are divided into at least two groups of shift registers, each group of shift registers includes at least one shift register, located in a same column. A gate driving circuit in the at least one gate driving circuit corresponds to at least one clock signal line. The clock signal line includes a main body transmission section configured to transmit a clock signal, and at least two branch transmission sections connected to the main body transmission section. Each branch transmission section is connected to a clock signal input terminal of each shift register in a respective group of shift registers.
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167.发明申请公开(公告)号：US20220398976A1
公开(公告)日：2022-12-15
申请号：US17820415
申请日：2022-08-17
Inventor： Xuehuan FENG , Yongqian LI
IPC: G09G3/3225 , G09G3/3266
Abstract: A gate driving unit includes an Nth stage of shift register unit and an (N+1)th stage of shift register unit, N is a positive integer. The Nth stage of shift register unit includes an Nth stage of pull-up node control circuit, and the (N+1)th stage of shift register unit includes an (N+1)th stage of pull-up node control circuit. The Nth stage of pull-up node control circuit is electrically connected to an Nth stage of pull-up node and a control line, controls a potential of the Nth stage of pull-up node under the control of a control signal inputted by the control line. The (N+1)th stage of pull-up node control circuit is electrically connected to an (N+1)th stage of pull-up node and the control line, respectively, and controls a potential of the (N+1)th stage of pull-up node under the control of the control signal inputted by the control line.
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公开(公告)号：US20220343858A1
公开(公告)日：2022-10-27
申请号：US17764209
申请日：2021-05-20
Inventor： Xuehuan FENG , Yongqian LI
IPC: G09G3/3266 , G09G3/3225
Abstract: A shift register, a gate drive circuit and a driving method therefor. The shift register includes a display pre-charge reset subcircuit, a sensing pre-charge reset subcircuit, a pull-down control subcircuit, an output subcircuit, a sensing cascade subcircuit and a black frame insertion cascade subcircuit. The display pre-charge reset subcircuit is configured to provide a signal of a first power supply end for a pull-up node under control of a first signal input end and provide a signal of a second power supply end to the pull-up node under control of a reset signal end; the sensing pre-charge reset subcircuit is configured to provide a signal of a first clock signal end to the pull-up node under control of the sensing cascade node and the first clock signal end, and provide a signal of the second power supply end to the pull-up node under control of a total reset end.
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公开(公告)号：US20220319433A1
公开(公告)日：2022-10-06
申请号：US17310353
申请日：2020-12-29
Inventor： Zhidong YUAN , Yongqian LI , Can YUAN
IPC: G09G3/3266 , G09G3/3291 , G09G3/3233
Abstract: Provided are a pixel circuit, a driving method thereof and a display panel. The pixel circuit includes: multiple sub-pixel circuits in an array; each sub-pixel circuit includes a first node control sub-circuit, a second node control sub-circuit, a driving sub-circuit, a storage sub-circuit, a reading sub-circuit and a light emitting device; at least reading sub-circuits of the sub-pixel circuits of some rows are controlled by a same sensing control line; the first node control sub-circuit charges the storage sub-circuit in response to a first scan signal; the second node control sub-circuit writes a reference voltage signal into a second node in response to a second scan signal; the reading sub-circuit reads a potential of the second node in response to a sensing control signal written by a sensing control line; the driving sub-circuit drives the light emitting device to emit light.
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公开(公告)号：US20220302244A1
公开(公告)日：2022-09-22
申请号：US16976839
申请日：2019-11-29
Inventor： Can YUAN , Yongqian LI , Meng LI , Zhidong YUAN , Dacheng ZHANG , Lang LIU
IPC: H01L27/32 , H01L51/56 , H01L51/52 , G09G3/3233 , G09G3/3266 , G09G3/3275
Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array in a first direction and a second direction, the first direction intersecting with the second direction. The display substrate further includes data lines extended in the first direction, and the data lines are connected in one-to-one correspondence with the sub-pixels in columns in each row of sub-pixels, so as to provide data signals respectively; the display substrate further includes auxiliary electrode lines extended in the first direction which are configured to be electrically connected with a second electrode of the light emitting element to provide a second power voltage; each of the auxiliary electrode lines is spaced from any one of the plurality of data lines by at least one column of sub-pixels.
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