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.

公开(公告)号：US20210210023A1

公开(公告)日：2021-07-08

申请号：US17209053

申请日：2021-03-22

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

Inventor： Yue Li ,  Xingyao Zhou ,  Kaihong Huang

IPC: G09G3/3275 ,  G09G3/3266 ,  G09G3/3225

Abstract: The present disclosure provides a display panel and display device. The display panel includes: data lines disposed in a display area; a bonding terminal disposed in a non-display area surrounding the display area; fan-out lines; and demuxes disposed between the display area and the bonding terminal; each of the demuxes comprises at least two switch transistors; each switch transistor in one demux has a first electrode electrically connected to a corresponding data line of the data lines through a first connection line, a second electrode connected to the bonding terminal through one of the fan-out lines corresponding to the one demux, and a gate electrode electrically connected to a first clock signal line corresponding to the switch transistor; each fan-out line of the display panel overlaps the first clock signal line for an equal number of times.

公开(公告)号：US10964268B2

公开(公告)日：2021-03-30

申请号：US16202528

申请日：2018-11-28

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

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

IPC: G11C19/00 ,  G09G3/3266 ,  G11C19/28 ,  G09G3/36 ,  G09G3/20

Abstract: The present disclosure provides a shift register, a driving method thereof, a scan driving circuit and a display device. The shift register includes: a first node control module configured to control level at the first node based on an input signal and a second clock signal; a second node control module configured to control level at a second node based on the input signal, the first clock signal, the second clock signal, a low level signal and a high level signal; and an output control module configured to control the output terminal to output high level or low level based on level at the first node, level at the second node and the second clock signal. The second node can be provided with a relatively low level, which is conductive to maintaining a normal output of the shift register.

公开(公告)号：US20200381458A1

公开(公告)日：2020-12-03

申请号：US16706828

申请日：2019-12-08

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

Inventor： Shuai Yang ,  Yue Li ,  Xingyao Zhou ,  Zhi Liu

IPC: H01L27/12

Abstract: Disclosed are a display panel and a display apparatus. The display panel includes a multiplex circuit, a plurality of signal connection lines and a plurality of data signal lines, wherein each of the switch devices in the multiplex circuit comprises at least one thin film transistor; the colors of all pixel units in a first pixel unit column are the same; the colors of at least two pixel units in a second pixel unit column are different; first switch devices correspond to first pixel unit columns; second switch devices correspond to second pixel unit columns; and the equivalent channel width-to-length ratio of thin film transistors in each first switch device is less than the equivalent channel width-to-length ratio of thin film transistors in each second switch device.

公开(公告)号：US20200320937A1

公开(公告)日：2020-10-08

申请号：US16910078

申请日：2020-06-24

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

Inventor： Shuai YANG ,  Yue Li ,  Zhi Liu ,  Xingyao Zhou

IPC: G09G3/3258 ,  H01L27/32

Abstract: An organic light-emitting display panel and a display device are provided. The organic light-emitting display panel includes a control circuit. The control circuit includes a plurality of transistors. The plurality of transistors includes at least one first-type transistor, and each of the at least one first-type transistor has a channel width and a channel length, one of which is greater than five times the other one. Each of the at least one first-type transistor is a single-gate transistor.

公开(公告)号：US10685597B2

公开(公告)日：2020-06-16

申请号：US16151372

申请日：2018-10-04

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

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

IPC: G09G3/3266 ,  G09G3/22 ,  G06F1/04

Abstract: Provided is a shift register, including a first node control module for controlling a level state of a first node based on an input signal, a first clock signal and a second clock signal. The shift register includes a second node control module for controlling a level state of a second node based on the input signal, the first clock signal, the second clock signal and the level state of the first node. In a phase when the input signal is at high level and the first clock signal is at low level, a third node for controlling a level at the second node is provided with high level, such that in a phase when the input signal is at high level and the second clock signal is at low level, the level at the third node is pulled down so as to provide low level at the second node.

公开(公告)号：US10657888B2

公开(公告)日：2020-05-19

申请号：US15966129

申请日：2018-04-30

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

Inventor： Yana Gao ,  Xingyao Zhou ,  Yue Li ,  Chang-ho Tseng ,  Yuan Li

IPC: G09G3/3233

Abstract: A driving method for a pixel driving circuit comprising a driving transistor and a light-emitting element is provided. The driving method comprises: in response to a first scanning signal on a first scanning signal line, performing initialization of the pixel driving circuit; in response to a second scanning signal on a second scanning signal line and the first scanning signal on the first scanning signal line, compensating threshold voltage deviation of the driving transistor and providing a data signal voltage; in response to a first light-emitting signal on a first light-emitting signal line and a second light-emitting signal on a second light-emitting signal line, generating, by the driving transistor, driving current corresponding to the data signal voltage; and in response to the driving current, emitting light by the light-emitting element. At least one clock signal period is provided after initialization is completed and before the threshold voltage deviation is compensated.

公开(公告)号：US10522074B2

公开(公告)日：2019-12-31

申请号：US16131088

申请日：2018-09-14

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

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

IPC: G09G3/3225

Abstract: The present disclosure provides a shift register, a driving method of the shift register, an emission driving circuit, and a display device. The shift register includes a first node control module, a second node control module and an output control module. A first low level signal VGL1 provides low level at a first node, and a high level signal provides high level at a second node. The output control module includes a transistor for outputting low level, so that an output terminal outputs a third low level signal. The first low level signal VGL1, the third low level signal VGL3 and a threshold voltage Vth1 of the transistor in the output control module satisfy a relation of VGL3>VGL1+|Vth1|, such that in a phase following the output terminal outputting the high level signal, the output terminal completely outputs the third low level signal.

公开(公告)号：US11475840B2

公开(公告)日：2022-10-18

申请号：US16910078

申请日：2020-06-24

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD. ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

Inventor： Shuai Yang ,  Yue Li ,  Zhi Liu ,  Xingyao Zhou

IPC: G09G3/3258 ,  H01L27/32 ,  H01L27/12 ,  H01L29/786

Abstract: An organic light-emitting display panel and a display device are provided. The organic light-emitting display panel includes a control circuit. The control circuit includes a plurality of transistors. The plurality of transistors includes at least one first-type transistor, and each of the at least one first-type transistor has a channel width and a channel length, one of which is greater than five times the other one. Each of the at least one first-type transistor is a single-gate transistor.