公开(公告)号：US11645969B2

公开(公告)日：2023-05-09

申请号：US17809234

申请日：2022-06-27

Applicant: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zuquan Hu ,  Zhenyu Zhang ,  Haipeng Yang ,  Ke Dai

IPC: G09G3/20 ,  G09G3/3266 ,  G11C19/28 ,  G09G3/325

CPC classification number: G09G3/2092 ,  G09G3/325 ,  G09G3/3266 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2340/16 ,  G11C19/28

Abstract: A display device, a gate drive circuit, a shift register and a control method are disclosed. The shift register includes a first shift register unit and a second shift register unit, the first shift register unit is configured to write a first control signal to the first node, and write a first clock signal to the first signal output terminal under control of a voltage of the first node; the second shift register unit is configured to write a second clock signal to the second signal output terminal under control of the voltage of the first node; during time of a frame, the first clock signal and a first input signal provided by a first signal input terminal are pulse signals, and the second clock signal is a DC signal.

公开(公告)号：US20190147813A1

公开(公告)日：2019-05-16

申请号：US16242923

申请日：2019-01-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Seon Seo ,  Sun Ja Kwon ,  Yang Wan Kim ,  Seung Woo Sung ,  Yun Kyeong In

IPC: G09G3/36 ,  H01L27/12 ,  H01L27/02

CPC classification number: G09G3/3611 ,  G09G2300/0408 ,  G09G2300/0413 ,  G09G2300/043 ,  G09G2330/04 ,  H01L27/0288 ,  H01L27/124 ,  H01L27/1255

Abstract: A display device includes: a display panel having a display area with a plurality of pixel areas and a non-display area adjacent the display area, the display panel may include a substrate including at least one thin film transistor in each of the pixel areas and a display element connected to the thin film transistor; lighting circuits in the non-display area on the substrate to check lighting states of the display element; signal wires in the non-display area on the substrate to supply a signal to the lighting circuits; dummy circuits including a plurality of dummy capacitors, each of which include a first dummy capacitor electrode and a second dummy capacitor electrode, wherein the dummy circuits collect external static electricity coming through the signal wires before the external static electricity flows into the lighting circuits.

公开(公告)号：US20190114954A1

公开(公告)日：2019-04-18

申请号：US16129150

申请日：2018-09-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua XUAN ,  Xiaochuan CHEN ,  Shengji YANG ,  Dongni LIU ,  Li XIAO ,  Lei WANG ,  Pengcheng LU

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2003 ,  G09G3/32 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2320/045

Abstract: A display panel and a display method thereof and a display device are disclosed. The display panel comprises: a plurality of first gate lines and data lines which are intersected and insulated with each other; the display panel further comprises a plurality of subpixels; wherein a plurality of subpixels located in the same row are divided into m groups of pixels, each of the groups of pixels comprising n subpixels; the n subpixels in the same group of pixels are respectively connected to n first gate lines one by one, and the n subpixels are connected to the same data line; wherein m>1, n≥2, and m and n are positive integers.

公开(公告)号：US20190088181A1

公开(公告)日：2019-03-21

申请号：US15533836

申请日：2017-05-02

Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Weixin MA

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2310/0213 ,  G09G2310/0243 ,  G09G2310/08

Abstract: Disclosed are a GOA drive unit and a GOA drive circuit. The GOA drive unit includes a bidirectional selection unit. The bidirectional selection unit is activated under an action of a first control signal and a second control signal which are complementary to each other in timing sequence, and outputs a first selection signal. The bidirectional selection unit is activated under an action of a third control signal and a fourth control signal which are complementary to each other in timing sequence, and outputs a second selection signal. The GOA drive unit can reduce the influence of stress and improve the reliability of the GOA drive circuit.

公开(公告)号：US20180350444A1

公开(公告)日：2018-12-06

申请号：US15813702

申请日：2017-11-15

Applicant: AU OPTRONICS CORPORATION

Inventor： Cheng-Chiu PAI ,  Ming-Hung CHUANG

IPC: G11C19/28 ,  G09G3/00 ,  H03K19/017

CPC classification number: G11C19/28 ,  G09G3/003 ,  G09G3/20 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2320/0214 ,  G09G2330/025 ,  G09G2330/04 ,  H03K19/01728

Abstract: A shift register includes a first switch and a second switch coupled to a first node, a pull-down circuit selectively connecting the first node to a voltage end according to a potential of a second node, a control circuit, and an input stage circuit which may receive a previous-stage shift register output signal, a next-stage shift register output signal, and at least one scanning order logic signal. The first switch receives clock signals. A first output end of the input stage circuit outputs the previous-stage shift register output signal or the next-stage shift register output signal to a control end of the second switch based on the scanning order logic signal. The previous-stage shift register output signal or the next-stage shift register output signal triggers a second output end of the input stage circuit to output the scanning order logic signal to an input end of the control circuit.

公开(公告)号：US20180336835A1

公开(公告)日：2018-11-22

申请号：US15328941

申请日：2017-01-05

Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.

Inventor： Xujun Liu

IPC: G09G3/34 ,  H01L33/00

CPC classification number: G09G3/34 ,  G09G3/36 ,  G09G3/3677 ,  G09G2300/0408 ,  H01L33/00

Abstract: Disclosed is a gate driving unit and a driving circuit, the gate driving unit comprising a pull-up control unit for generating a scanning control signal; a pull-up cascade transmission unit for converting a scanning clock signal into a line scanning signal; a pull-down unit for pulling down the scanning control signal and the line scanning signal to a low level; and a pull-down maintaining unit for maintaining the scanning control signal and the line scanning signal at the low level. The gate driving unit increases the reliability of the gate driving circuit.

公开(公告)号：US20180336830A1

公开(公告)日：2018-11-22

申请号：US15328476

申请日：2017-01-12

Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd

Inventor： Tianhong WANG ,  Ping-sheng KUO

IPC: G09G3/34 ,  H01L33/00

CPC classification number: G09G3/34 ,  G02F1/1362 ,  G02F1/136286 ,  G09G3/20 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0267 ,  H01L33/00

Abstract: The present disclosure relates to an array substrate for enhancing gate driver on array (GOA) reliability. The array substrate includes dual and adjacent VSS traces in a rim. The VSS traces include a first VSS trace and a second VSS trace, and 2n number of regulation capacitors are configured between the CF_COM trace and the second VSS trace via metal material in different layers. Alternatively, a single third VSS trace is configured between the GOA circuit and the CF_COM in the active display area (AA), and 2n number of regulation capacitors are configured between the CF_COM trace and the third VSS trace via metal material in different layers. The array substrate may be adopted in the mass production of the TFT display panels.

公开(公告)号：US20180331125A1

公开(公告)日：2018-11-15

申请号：US15976856

申请日：2018-05-10

Applicant: Au Optronics Corporation

Inventor： Cheng-Kuang Wang ,  Chun-Da Tu

IPC: H01L27/12

CPC classification number: H01L27/124 ,  G09G3/20 ,  G09G3/2092 ,  G09G2300/0408 ,  G09G2300/0809 ,  G09G2310/0286 ,  G11C19/28 ,  H01L27/1255

Abstract: A display panel including a display region and a non-display region, a plurality of gate lines, a plurality of data lines, a pixel array and a gate on array circuit. The non-display region is located at one side of the display region. The plurality of gate lines and the plurality of data lines are disposed in the display region. The pixel array is located in the display region, wherein the pixel array is composed of a plurality of pixel units that are repeatedly arranged. The pixel units consist of three gate lines, two data lines and six sub-pixels, and each sub-pixel is electrically connected to one of the gate lines and one of the data lines located in the pixel array respectively. The gate on array circuit is disposed in the pixel array.

公开(公告)号：US20180308425A1

公开(公告)日：2018-10-25

申请号：US15788659

申请日：2017-10-19

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

Inventor： Jingxiong ZHOU ,  Ruiyuan ZHOU

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0408 ,  G09G2300/0452 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/0693 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2380/02 ,  H02M3/1582

Abstract: The application discloses a method for powering an organic electroluminescence display panel, and a display device. When an external compensation circuit is acquiring parameters of respective sub-pixels in a display area of the organic electroluminescence display panel, the display area is powered using a power-supply circuit in a driver chip at high conversion efficiency, and thus high power consumption, to thereby lower power consumption in a parameter acquisition stage. While the external compensation circuit is performing data compensation to the respective sub-pixels in the display area of the organic electroluminescence display panel, the display area of the organic electroluminescence display panel is powered using the power management chip at high conversion efficiency to thereby achieve low power consumption in the data compensation stage.

公开(公告)号：US20180293950A1

公开(公告)日：2018-10-11

申请号：US15539733

申请日：2017-05-08

Applicant: Xiaowen LV

Inventor： Xiaowen LV

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0842

Abstract: Disclosed is a GOA drive circuit, which includes multiple stages of GOA drive units. A pull-down unit of a GOA drive unit in each stage is configured to increase a time for a first voltage signal to be pulled down to a first electric potential during a process when the first voltage signal jumps from a high electric potential to a low electric potential, so as to enable the first voltage signal to have a stepwise falling edge. In the GOA drive circuit, smoothness of a voltage at a key node thereof during a voltage changing process can be ensured, whereby an output performance of the GOA drive circuit can be improved, and an overall performance thereof can be improved accordingly.