公开(公告)号：US11741882B2

公开(公告)日：2023-08-29

申请号：US17565486

申请日：2021-12-30

Applicant: Shanghai Tianma AM-OLED Co., Ltd. ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

Inventor： Dongxu Xiang ,  Yue Li ,  Renyuan Zhu ,  Yana Gao ,  Zhonglan Cai

IPC: G09G3/22 ,  G09G3/3233 ,  G09G3/3266 ,  H10K59/10

CPC classification number: G09G3/22 ,  G09G3/3233 ,  G09G3/3266 ,  H10K59/10 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2310/0264 ,  G09G2310/0286 ,  G09G2320/0626

Abstract: Provided are an organic light-emitting display panel, a driving method and a driving device therefor. The driving method includes: setting brightness levels of the organic light-emitting display panel and maximum gray scale brightness levels, and maximum gray scale brightness levels include a first maximum gray scale brightness corresponding to a maximum brightness level of the organic light-emitting display panel, and an effective pulse duty cycle of a light-emitting control signal for driving the first maximum gray scale brightness is defined as a first effective pulse duty cycle; determining a target brightness level of the switched picture and a target maximum gray scale brightness corresponding to the target brightness level; adjusting the target effective pulse duty cycle of the light-emitting control signal for driving the switched picture.

公开(公告)号：US11222562B2

公开(公告)日：2022-01-11

申请号：US17212394

申请日：2021-03-25

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Yana Gao ,  Xingyao Zhou ,  Xinzhao Liu ,  Zhi Liu

IPC: G09G3/00 ,  G09G3/20

Abstract: A display panel, a method for detecting the same, and a display device are provided. The display panel has a display area provided with data lines therein, and a non-display area provided with fan-out lines, a crack detection line, multiplexers, a first crack detection switch, and a crack detection control signal line therein. The crack detection line includes first and second detection sub-lines connected to each other. The first detection sub-line and the second detection sub-line are respectively connected to an input terminal of the first crack detection switch and a crack detection signal terminal. An output terminal of the demultiplexer is electrically connected to n data lines. An input terminal of the first demultiplexer is connected to an output terminal of the first crack detection switch and one fan-out line, and a control terminal of the first crack detection switch is connected to the crack detection control signal line.

公开(公告)号：US10909950B2

公开(公告)日：2021-02-02

申请号：US16137602

申请日：2018-09-21

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Yana Gao ,  Xingyao Zhou ,  Yue Li ,  Dongxu Xiang ,  Renyuan Zhu ,  Zhonglan Cai ,  Juan Zhu ,  Gaojun Huang ,  Yilin Xu

IPC: G09G5/10

Abstract: The present disclosure provides an emission controller, a driving method thereof, and a display device. The emission controller includes a first processing module, a second processing module, a third processing module, an output module and a shift control module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module generates a second signal in response to the first control signal and the first signal. The third processing module generates third and fourth signals in response to the second control signal, the second and first signals. The output module provides emission control signal in response the first and fourth signal. The shift control module provides a shift control signal in response to the first and fourth signal, or provides a shift control signal in response to the first and third signal.

公开(公告)号：US10672334B2

公开(公告)日：2020-06-02

申请号：US16181520

申请日：2018-11-06

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Yue Li ,  Renyuan Zhu ,  Dongxu Xiang ,  Yana Gao ,  Xingyao Zhou

IPC: G09G3/3225 ,  G06K9/00 ,  G09G3/3266

Abstract: In an organic light-emitting display panel, a display area and a peripheral area surrounding the display area are provided on the base substrate, and the display area includes a display sub-area and a fingerprint recognition sub-area. A plurality of pixel driving circuits and a plurality of organic light-emitting components are arranged in the display area, and the organic light-emitting components are electrically connected to the pixel driving circuits in one-to-one correspondence. The first emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the display sub-area. The second emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the fingerprint recognition sub-area.

公开(公告)号：US10657877B2

公开(公告)日：2020-05-19

申请号：US16190670

申请日：2018-11-14

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Renyuan Zhu ,  Yue Li ,  Dongxu Xiang ,  Yana Gao ,  Xingyao Zhou ,  Gaojun Huang ,  Yilin Xu ,  Zhonglan Cai ,  Juan Zhu

IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/36

Abstract: The present disclosure provides a driving circuit, a display device and a driving method. The driving circuit includes a shift register including: a first input unit for controlling a first node based on signals at first and second clock signal terminals, an input signal terminal, a second node and an output signal terminal; a second input unit for providing a signal at a first constant potential terminal to the second node under control of the first clock signal terminal and providing the signal at the input signal terminal or the first clock signal terminal to the second node under control of the first node; and an output unit for providing a signal at the second clock signal terminal to the output signal terminal under control of the first node and providing a signal at a second constant potential terminal to the output signal terminal under control of the second node.

公开(公告)号：US20190325186A1

公开(公告)日：2019-10-24

申请号：US16229479

申请日：2018-12-21

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Yana Gao ,  Xingyao Zhou ,  Yue Li ,  Dongxu Xiang ,  Xinzhao Liu

IPC: G06K9/00 ,  G06F3/041 ,  G06F3/044

Abstract: Provided are a display panel and a display device. The display panel includes a display assembly and a fingerprint recognition assembly. The display assembly includes a base substrate, a plurality of pixel units disposed on one side of the base substrate and a first scanning line extending along a first direction, each of the plurality of pixel units includes a pixel driving unit and a light-emitting unit disposed on one side of the pixel driving unit facing away from the base substrate, and the light-emitting unit includes a metal anode. The fingerprint recognition assembly is configured to perform fingerprint recognition according to light reflected by a touch object to a fingerprint recognition unit. A vertical projection of the first scanning line on the base substrate and a vertical projection of the metal anode on the base substrate have an overlapping area.

公开(公告)号：US10242620B2

公开(公告)日：2019-03-26

申请号：US15907191

申请日：2018-02-27

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Renyuan Zhu ,  Yue Li ,  Dongxu Xiang ,  Yana Gao

IPC: G09G3/36 ,  G09G3/3233 ,  H01L27/32 ,  G09G3/3258 ,  H01L27/12

Abstract: Disclosed are a pixel circuit, a method for driving the same, a display panel, a display device, and the pixel circuit which includes a driving transistor structured with double-gates, a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor, a first capacitor, a second capacitor, and a light-emitting element; and the respective transistors and capacitors above cooperate with each other to compensate for threshold voltage of the driving transistor, so that driving current to drive the light-emitting element to emit light is only dependent upon voltage of a data signal, the light-emitting element is avoided from being affected by the threshold voltage of the driver control module, and when the same data signal is applied to different pixel elements, an image at the same brightness can be displayed.

公开(公告)号：US20180130410A1

公开(公告)日：2018-05-10

申请号：US15865097

申请日：2018-01-08

Applicant: Shanghai Tianma AM-OLED Co.,Ltd.

Inventor： Yana Gao ,  Renyuan Zhu ,  Yue Li ,  Dongxu Xiang ,  Zeyuan Chen

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/0219 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/045

Abstract: The disclosure discloses a pixel circuit, a method for driving the same, and an organic electroluminescent display panel, where the pixel circuit includes a node initialization module and a drive control module, the node initialization module includes a first switch transistor with a gate electrically connected with a first scan signal terminal, a source electrically connected with a first reference signal terminal, and a drain electrically connected with a first node; and a seventh switch transistor with a gate electrically connected with the first scan signal terminal, a source electrically connected with the second reference signal terminal, and a drain electrically connected with the second node; the drive control module includes a drive transistor with a gate electrically connected with the first node, a source electrically connected with the second node.

公开(公告)号：US11217609B1

公开(公告)日：2022-01-04

申请号：US17172718

申请日：2021-02-10

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Zhuan Gao ,  Xinzhao Liu ,  Mengmeng Zhang ,  Xingyao Zhou ,  Yana Gao

IPC: H01L27/12 ,  H01L25/18 ,  H01L21/66 ,  G09G3/36 ,  H01L21/78 ,  G02F1/1345 ,  H01L27/32 ,  G09G3/3225 ,  G02F1/1362

Abstract: Array substrates, motherboards of array substrates, display panels and method for forming display panels are provided. The array substrate includes sub-pixels, data lines, multiple-channel distribution units, X first switch control lines, test units and N second switch control lines. The first output terminals of the X first switch elements of a same multiple distribution unit are connected to the X data lines of the same data line group. The first control terminals of the X first switch elements of each multiple-channel distribution unit are connected to the X first switch control lines. The second output terminals of the second switch elements in a same test unit are electrically connected to the first input end of the first switch elements in the same multiple-channel distribution unit. The second control terminals of the N second switch elements in each test unit are connected to the N second switch control lines.

公开(公告)号：US11144159B2

公开(公告)日：2021-10-12

申请号：US17171743

申请日：2021-02-09

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Mengmeng Zhang ,  Xingyao Zhou ,  Yana Gao ,  Yue Li

IPC: G06F3/041 ,  G09G3/20

Abstract: A driving method of a display panel, a display panel and a display device are provided. The display panel includes M driving signal wires, M pixel-rows, a first driving circuit and a second driving circuit, the first clock signal wire pair for controlling operation of the first driving circuit, and the second clock signal wire pair for controlling operation of the second driving circuit. In the driving method, clock signals with a regular period are respectively provided to the first clock signal wire pair and the second clock signal wire pair, in order to divide a display process of the display panel into multiple display phases and control the display panel to execute a touch phase between two adjacent display phases, to realize time division execution of display and touch.