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公开(公告)号：US20220115493A1
公开(公告)日：2022-04-14
申请号：US17329349
申请日：2021-05-25
Inventor： Yongchao Huang , Can Yuan , Liusong Ni , Chao Wang , Jiawen Song , Zhiwen Luo , Jun Liu , Leilei Cheng , Qinghe Wang , Tao Sun
Abstract: A display panel and a fabricating method thereof, and a displaying device. The display panel includes a substrate, a resistance reducing trace, an inter-layer-medium layer and a signal line. The substrate is divided into a plurality of sub-pixel regions and a pixel separating region. The resistance reducing trace is provided on the pixel separating region of the substrate. The inter-layer-medium layer is provided on the substrate, and the inter-layer-medium layer has an opening exposing the resistance reducing trace. The signal line is provided within the opening, the signal line is connected to the resistance reducing trace, the signal line is distributed in a column direction along the display panel, and in a row direction along the display panel, a width of the opening is greater than or equal to a width of the signal line.
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12.发明授权公开(公告)号：US11270642B2
公开(公告)日：2022-03-08
申请号：US16674531
申请日：2019-11-05
Inventor： Meng Li , Yongqian Li , Song Meng , Zhidong Yuan , Can Yuan , Haixia Xu , Wenchao Bao
IPC: G06F3/038 , G09G3/3258
Abstract: A pixel unit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first sub-pixel driving circuit and a first light-emitting element, and the second sub-pixel circuit includes a second sub-pixel driving circuit and a second light-emitting element. The first sub-pixel driving circuit and the second sub-pixel driving circuit are connected to a first data line, and the first sub-pixel driving circuit is connected to a first gate line, the second sub-pixel driving circuit is connected to the second gate line. The first sub-pixel driving circuit is configured to drive the first light-emitting element by a data voltage on the first data line under the control of the first gate line. The second sub-pixel driving circuit is configured to drive the second light-emitting element by the data voltage on the first data line under the control of the second gate line.
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13.发明授权公开(公告)号：US11250784B2
公开(公告)日：2022-02-15
申请号：US16642469
申请日：2019-07-29
Inventor： Zhidong Yuan , Yongqian Li , Meng Li , Can Yuan
IPC: G09G3/3266 , G11C19/28
Abstract: The present disclosure discloses a shift register, a driving method thereof, a gate drive circuit, an array substrate and a display device. With a signal control circuit, a branch control circuit, a cascade signal output circuit and at least two scan signal output circuits, each shift register can output at least two scan signals to correspond to different gate lines in a display panel. This can reduce the number of shift registers in a gate drive circuit and the space occupied by the gate drive circuit and can achieve an ultra-narrow frame design, as compared with an existing shift register that can only output one scan signal. Moreover, as signals of different output control node do not influence each other, the output stability can also be improved.
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公开(公告)号：US11238795B2
公开(公告)日：2022-02-01
申请号：US17259702
申请日：2020-06-24
IPC: G09G3/3233 , G09G3/3275 , G09G3/32
Abstract: A method for controlling a charging time of a display panel includes: during t0+kΔt in a (k+1)-th blanking time, writing a data voltage to a gate of a driving transistor, and detecting a voltage Vk_(j,i) of a second electrode of the driving transistor; during a t0+(k+r)Δt in a (k+1+r)-th blanking time, writing the data voltage to the gate of the driving transistor, and detecting a voltage Vk+1_(j,i) of the second electrode of the driving transistor; determining whether ΔVj,i=Vk+1_ji−Vk_ji is less than or equal to a target voltage difference VT; if ΔVj,i≤VT, taking the T=t0+kΔt as an expected charging time of a sub-pixel; if ΔVj,i>VT, cyclically performing the charging step described above to obtain ΔVj,i=Vk+p+1_(j,i)−Vk+p_(j,i), and comparing ΔVj,i with the target voltage difference VT, until ΔVj,i≤VT, taking t0+(k+p+r−1)Δt as the expected charging time of the sub-pixel. p is taken from 1, and increases by 1 for each cycle.
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15.发明申请公开(公告)号：US20210408160A1
公开(公告)日：2021-12-30
申请号：US16963346
申请日：2019-09-27
Inventor： Can Yuan , Yongqian Li , Pan Xu , Zhidong Yuan , Meng Li , Xuehuan Feng , Zehua Ding
IPC: H01L27/32 , G09G3/3225
Abstract: An array substrate includes an array of a plurality of subpixels including a plurality of columns of subpixels respectively spaced apart by a plurality of inter-subpixel regions; a plurality of pixel driving circuits respectively driving light emission of the plurality of subpixels; and a plurality of detection and compensation lead lines respectively configured to respectively detect signals in the plurality of subpixels and respectively compensate signals in the plurality of subpixels. A respective one of a plurality of detection and compensation lead lines is disposed in a first inter-subpixel region between two directly adjacent columns of subpixels. The respective one of the plurality of detection and compensation lead lines is spaced apart by at least one columns of subpixels from a signal line configured to transmit an alternating current and arranged along a direction parallel to the respective one of the plurality of detection and compensation lead lines.
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Patent Agency Ranking
公开(公告)号：US11114027B2
公开(公告)日：2021-09-07
申请号：US16063932
申请日：2017-11-21
Inventor： Can Yuan , Yongqian Li , Pan Xu , Zhidong Yuan , Zhenfei Cai
IPC: G09G3/3233
Abstract: The present application discloses a pixel circuit, including a data-input sub-circuit configured to apply a data voltage from the data line to a first node; a reset sub-circuit configured to reset the second node; a driving-control sub-circuit coupled to a first power supply, the first node, and the second node; a power-storage sub-circuit configured to regulate a voltage difference between the first node and the second node; a light-emitting device coupled to the second node and a second power supply; and a sampling sub-circuit coupled to the data line and the second node and being configured to control the data line to connect with the second node for collecting a voltage signal containing information about electrical properties of the driving-control sub-circuit and being used to generating a compensation voltage for compensating any drifts of the electrical properties.
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公开(公告)号：US20210233476A1
公开(公告)日：2021-07-29
申请号：US17256049
申请日：2020-02-12
Inventor： Can Yuan , Yongqian Li , Zhidong Yuan , Min He , Haixia Xu
IPC: G09G3/3266 , G11C19/28
Abstract: A shift register unit, a driving method, a gate driving circuit, and a display device are disclosed. The shift register unit includes: a shift circuit, used to output, to a first output end during a first time period, a power control signal, and output the power control signal to a second output end during a second time period; and a signal integrated circuit, used to output the power control signal to a third output end in response to the power control signal and a first output signal, output the power control signal to the third output end in response to the power control signal and a second output signal, and output, to the third output end at times other than the first and second time period in response to the power control signal, the first output signal and the second output signal, a first pull-down power signal.
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18.发明授权公开(公告)号：US10916170B2
公开(公告)日：2021-02-09
申请号：US16443325
申请日：2019-06-17
Inventor： Meng Li , Yongqian Li , Zhidong Yuan , Can Yuan
IPC: G09G3/20
Abstract: The present disclosure provides a gate driving circuit and a driving method thereof as well as a display device. The gate driving circuit comprises a driving circuit connected to a gate line for outputting a gate scanning signal; and a detecting circuit connected to the gate line for collecting and recording the gate scanning signal.
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公开(公告)号：US10777134B2
公开(公告)日：2020-09-15
申请号：US16035891
申请日：2018-07-16
Inventor： Can Yuan , Yongqian Li , Zhenfei Cai , Zhidong Yuan , Dongxu Han
IPC: G09G3/3233 , H01L51/52 , H01L27/32 , G09G3/20 , G09G3/3258
Abstract: A detection method of a pixel circuit, a driving method of a display panel, a display device and a pixel circuit are provided. The pixel circuit includes a driving transistor, and the detection method includes a writing phase and a reading phase. The writing phase includes: writing a reference data voltage to a gate electrode of the driving transistor, and writing a first detection writing voltage to a first electrode of the driving transistor to turn on the driving transistor; and the reading phase includes: upon the driving transistor being turned off after a first predetermined time after writing the first detection writing voltage, reading a voltage of the first electrode of the driving transistor to obtain a first detection reading voltage for obtaining a threshold voltage of the driving transistor.
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公开(公告)号：US10777128B2
公开(公告)日：2020-09-15
申请号：US15981020
申请日：2018-05-16
Inventor： Xuehuan Feng , Zhidong Yuan , Zhenfei Cai , Meng Li , Can Yuan
IPC: G09G5/00 , G09G3/3225 , H01L27/32 , H01L51/05 , G09G3/3233 , G09G3/3208 , H01L51/10
Abstract: The present disclosure discloses a pixel circuit, a display apparatus and a dual-gate driving transistor. The pixel circuit comprises a dual-gate driving transistor having a drain electrically connected to a first power supply terminal; a threshold voltage compensation unit electrically connected to a data terminal, a first control terminal, a first gate of the dual-gate driving transistor, and a source of the dual-gate driving transistor respectively; a mobility compensation unit electrically connected to a sensing signal terminal, a second control terminal, and the source of the dual-gate driving transistor respectively; and a light emitting control unit electrically connected to the data terminal, a third control terminal, a second gate of the dual-gate driving transistor, the source of the dual-gate driving transistor, and a light emitting device respectively. The threshold voltage compensation unit and the mobility compensation unit perform threshold voltage compensation for the dual-gate driving transistor under the control of the data terminal, the first control terminal, the sensing signal terminal, and the second control terminal; and the mobility compensation unit and the light emitting control unit perform mobility compensation for the dual-gate driving transistor and control the dual-gate driving transistor to drive the light emitting device to emit light under the control of the sensing signal terminal, the second control terminal, the data terminal, and the third control terminal.
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