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11.发明申请公开(公告)号：US20190325834A1
公开(公告)日：2019-10-24
申请号：US16226359
申请日：2018-12-19
Inventor： Xuehuan FENG , Quanhu LI , Yongqian LI
IPC: G09G3/36
Abstract: A shift register unit, a driving method, a gate driving circuit, and a display device are provided. The shift register unit includes an input reset circuit; a first storage node potential maintaining circuit; a second storage node potential control circuit; a pull-up node control circuit for controlling the potential of the pull-up node to be a valid level under the control of the second storage node, the second clock signal input end, and the fourth clock signal input end, and controlling to connect or disconnect the pull-up node and the second voltage input end under the control of the second clock signal input end and the third clock signal input end; a pull-up node potential maintaining circuit; a pull-down node control circuit; and a gate driving output circuit.
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公开(公告)号：US20190325822A1
公开(公告)日：2019-10-24
申请号：US16067243
申请日：2018-01-04
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu LI
IPC: G09G3/3233 , G09G3/3266 , G09G3/3275 , G09G3/3258
Abstract: A method of driving a pixel circuit. The pixel circuit includes a light emitting element, a drive transistor, a storage capacitor connected between a gate and a source of the drive transistor, a first switch circuit, a second switch circuit, and a third switch circuit. The method includes: performing a data write phase including: bringing a second node out of conduction with the second power supply voltage by the first switch circuit, and charging the storage capacitor via the first switch circuit with a data voltage applied to the data line; performing a detection phase including directing a driving current generated by the drive transistor based on the data voltage to the sensing line via the third switch circuit; and detecting a magnitude of the driving current.
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公开(公告)号：US20190280066A1
公开(公告)日：2019-09-12
申请号：US15780454
申请日：2017-11-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yi-Cheng LIN , Quanhu LI , Yu WANG , Cuili GAI , Ming I CHU , Chien Pang HUANG
IPC: H01L27/32 , G09G3/3225
Abstract: A pixel circuit and a driving method thereof, and a display panel is provided. The pixel circuit includes a first selection circuit, a first driving circuit, a first capacitor a first sensing circuit, a first organic light emitting element, a second capacitor and a capacitor control circuit. The first selection circuit and the first capacitor are electrically connected, and are configured to control the first driving circuit; the first sensing circuit is electrically connected to the first driving circuit and the first organic light emitting element and is configured to sense the first driving circuit or the first organic light emitting element; and the capacitor control circuit is configured to allow the first capacitor and the second capacitor to be connected in parallel or to be disconnected.
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14.发明申请公开(公告)号：US20190051857A1
公开(公告)日：2019-02-14
申请号：US15982544
申请日：2018-05-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pan XU , YI-CHENG LIN , Quanhu LI
Abstract: This disclosure discloses an organic light-emitting diode encapsulation structure, a method for fabricating the same, and an organic light-emitting diode, and the organic light-emitting diode encapsulation structure includes: a cover plate; an array substrate arranged opposite to the cover plate; a spacing layer arranged on at least one of the surface of the edge of the array substrate facing the cover plate, and the surface of the edge of the cover plate facing the array substrate; and wherein the cover plate and the array substrate are bonded to each other through frame sealing glue affixed on the spacing layer into a box; and the surface of the spacing layer bonded through the frame sealing glue is structured in a concave-convex pattern.
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公开(公告)号：US20170148388A1
公开(公告)日：2017-05-25
申请号：US15116624
申请日：2015-10-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Cuili GAI , Kun CAO , Baoxia ZHANG , Yongqian LI , Quanhu LI , Longyan WANG , Jingwen YIN
IPC: G09G3/3258 , H01L27/12 , G09G3/3291 , H01L27/32 , G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3258 , G09G3/3233 , G09G3/3266 , G09G3/3291 , G09G2300/0426 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2320/0233 , G09G2320/045 , G09G2320/0626 , H01L27/1255 , H01L27/3248 , H01L27/3276
Abstract: There are provided in the present disclosure a pixel driving circuit, an array substrate and a display apparatus. The pixel driving circuit comprises: a compensation module (11), a control module (12), a driving modeling (13), and a light emitting module (14), wherein: the compensation module (11) is connected to a scan signal (Scan), a data signal (Vdata) and a reference signal (VREF) and further connected to the control module (12) and the drive module (13), and is configured to receive the data signal (Vdata) and the reference signal (VREF) under the control of the scan signal (Scan) and compensate for a threshold voltage of the drive module (13) under the control of the control module (12); the control module (12) is connected to a light emitting control signal (EM) and a power supply signal (ELVDD) and further connected to the drive module (13) and the light emitting module (14), and is configured to receive the power supply signal (ELVDD) under the control of the light emitting control signal (EM) to control the compensation module (11) to compensate for the threshold voltage of the drive module (13); one terminal of the light emitting module (14) is connected to the drive module (13), and the other terminal thereof is grounded (VSS); and; the drive module (13) is configured to drive the light emitting module (14) to emit light under the control of the control module (12). The pixel driving circuit is capable of avoiding non-uniformity of luminance of the display device, and enhancing the display effect of the display device.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20170018223A1
公开(公告)日：2017-01-19
申请号：US14912518
申请日：2015-09-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongqian LI , Quanhu LI
IPC: G09G3/3233 , G09G3/20 , G09G3/3258
CPC classification number: G09G3/3233 , G09G3/2003 , G09G3/3258 , G09G2300/0426 , G09G2300/0804 , G09G2300/0819 , G09G2300/0842 , G09G2310/0235 , G09G2320/0252 , G09G2320/0646
Abstract: An OLED pixel unit, a method of driving the same and an OLED display device are provided. The OLED pixel unit comprises M driving modules, a light emitting module comprising N light emitting units and a selecting module for performing gating so that the light emitting unit about to emit light in each frame of picture is connected with the corresponding driving module, wherein M
Abstract translation: 提供OLED像素单元，其驱动方法和OLED显示装置。 OLED像素单元包括M个驱动模块，包括N个发光单元的发光模块和用于执行门控的选择模块，使得在每帧图像中发光的发光单元与相应的驱动模块连接，其中M
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公开(公告)号：US20160253962A1
公开(公告)日：2016-09-01
申请号：US14769068
申请日：2015-01-06
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G3/3225
CPC classification number: G09G3/3225 , G09G3/3266 , G09G2300/0809 , G09G2310/0213 , G09G2310/0218
Abstract: Disclosed is a pulse signal combination circuit for combining N input pulse signals sequentially effective within each display period into an output pulse signal, N being an integer greater than 1, including N output control units and a pulse signal output end. A first control end of an nth output control unit is configured to receive an nth input pulse signal, a second control end thereof is configured to receive an (n+1)th input pulse signal, and an output end thereof is connected to the pulse signal output end. The nth output control unit is configured to, within a time duration of each display period after the nth input pulse signal is effective for the first time and before the (n+1)th input pulse signal is effective for the first time, output the nth input pulse signal to the pulse signal output end, where n is a positive integer less than N.
Abstract translation: 公开了一种脉冲信号组合电路，用于将在每个显示周期内顺序有效的N个输入脉冲信号组合成输出脉冲信号，N是大于1的整数，包括N个输出控制单元和脉冲信号输出端。 第n输出控制单元的第一控制端被配置为接收第n输入脉冲信号，其第二控制端被配置为接收第（n + 1）个输入脉冲信号，并且其输出端连接到脉冲 信号输出端。 第n输出控制单元被配置为在第n个输入脉冲信号在第一次有效之后且在第（n + 1）个输入脉冲信号第一次有效之前的每个显示周期的持续时间内，输出 第n个输入脉冲信号到脉冲信号输出端，其中n是小于N的正整数。
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公开(公告)号：US20210166623A1
公开(公告)日：2021-06-03
申请号：US16331673
申请日：2018-08-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Cuili GAI , Yicheng LIN , Baoxia ZHANG , Ling WANG , Quanhu LI , Pan XU
IPC: G09G3/3233
Abstract: A pixel circuit includes a data writing sub-circuit inputs a signal input via a second signal terminal to a compensating sub-circuit and a driving sub-circuit under control of a signal from a first signal terminal, the compensating sub-circuit compensates a threshold voltage of the driving sub-circuit according to a signal output from the data writing sub-circuit under control of a signal from a third signal terminal, a light-emitting control sub-circuit inputs a signal from a first voltage terminal to the driving sub-circuit and the compensating sub-circuit under control of a signal from a fourth signal terminal, the driving sub-circuit configured to generate and input a driving current to a light-emitting sub-circuit according to a signal output from the light-emitting control sub-circuit and a signal output from the data writing sub-circuit, and the light-emitting sub-circuit configured to emit light according to the driving current under control of a second voltage terminal.
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公开(公告)号：US20200152101A1
公开(公告)日：2020-05-14
申请号：US16086675
申请日：2018-03-02
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongqian LI , Pan XU , Quanhu LI
Abstract: A circuitry and a method for detecting a failed pixel, and a display device are provided. The circuitry for detecting the failed pixel includes a display control circuit and a failed pixel detection circuit. The display control circuit is connected to a pixel driving circuit, and configured to control, at detection voltage write-in stage and failed pixel detection stage, the pixel driving circuit to cause light-emitting element not to emit light. The failed pixel detection circuit is connected to first electrode of the light-emitting element via failure sense line, and configured to apply a reference voltage to the first electrode of the light-emitting element via the failure sense line at the detection voltage write-in stage, detect a potential at the first electrode of the light-emitting element at the failed pixel detection stage, and determine, in accordance with the potential, whether the pixel circuit is failed.
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20.发明申请公开(公告)号：US20190259327A1
公开(公告)日：2019-08-22
申请号：US16080466
申请日：2018-01-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233
Abstract: A compensation circuit and a manufacturing method thereof, a pixel circuit, a compensation device and a display device are disclosed. The OLED compensation circuit includes at least two sense transistors, the at least two sense transistors are in one-to-one correspondence with at least two sub-pixels in a pixel, and a first electrode of each of the sense transistors is electrically connected to a driving transistor of corresponding one of the sub-pixels; a magnitude relationship between channel width-to-length ratios of driving transistors of any two sub-pixels of the at least two sub-pixels is identical with a magnitude relationship between channel width-to-length ratios of two sense transistors corresponding to the two sub-pixels.
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