# US 10,319,323 B2 · GOA driving panel

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- Number: US 10,319,323 B2
- Document ID: US10319323B2
- Status: Granted
- Kind: B2
- Application number: 15/520,012
- Filed: 2017-03-14
- Published: 2019-01-31
- Granted: 2019-06-11
- Earliest claimed: 2017-02-27
- Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Inventors: Yuanfu Liu
- Web page: https://patentgrep.com/patent/US10319323B2

## CPC

- G09G 3/3677: {suitable for active matrices only}
- G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- G09G 2300/0408: Integration of the drivers onto the display substrate
- G09G 2310/0267: Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
- G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit
- G09G 2310/06: Details of flat display driving waveforms
- G09G 2320/0233: Improving the luminance or brightness uniformity across the screen
- G09G 2320/0247: Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A GOA driving panel is disclosed. The GOA driving panel includes a plurality of GOA driving units and a plurality of output capacitors. Each output capacitor is arranged between a GOA driving unit and a corresponding scanning line so that an output waveform of a row scanning signal output by the GOA driving unit is a delay waveform. In the GOA driving unit, a difference among feedback voltages of pixel units in different active areas of the panel can be effectively reduced, whereby image flicker of the panel can be alleviated, and display quality thereof can be improved.

## Claims

### Claim 1

A Gate Driver On Array (GOA) driving panel, comprising an active area and a non-active area arranged at two opposite sides of the active area,
wherein the non-active area is provided with a plurality of GOA driving units, and each GOA driving unit is connected with one corresponding scanning line in the active area for outputting a scanning signal to the scanning line; and
wherein the non-active area is further provided with a plurality of output capacitors, a first plate of each output capacitor is connected with a row scanning signal output end of a corresponding GOA driving unit, and a second plate of the each output capacitor is connected with a scanning line of the corresponding GOA driving unit so that an output waveform of a row scanning signal output by the GOA driving unit is a delay waveform.

### Claim 2

A Gate Driver On Array (GOA) driving panel, comprising an
active area and a non-active area arranged at two opposite sides of the active area, wherein the non-active area is provided with a plurality of GOA driving units, and each GOA driving unit is connected with one corresponding scanning line in the active area for outputting a scanning signal to the scanning line;
wherein the non-active area is further provided with a plurality of output capacitors, and each output capacitor is arranged between a GOA driving unit and a corresponding scanning line so that an output waveform of a row scanning signal output by the GOA driving unit is a delay waveform;
wherein the active area is provided with a switching element, a first plate of the output capacitor is arranged in a same layer as a source and a drain of the switching element, and a second plate thereof is arranged in a same layer as a pixel electrode;
wherein the active area is provided with pixel units arranged in an array;
wherein a pixel unit corresponding to an input end of the scanning line connected with the GOA driving unit serves as a first pixel unit, a pixel unit corresponding to a terminal of the scanning line connected with the GOA driving unit serves as a second pixel unit, and a pixel unit corresponding to a midpoint of the scanning line connected with the GOA driving unit serves as a third pixel unit; and
wherein a capacitance of the output capacitor corresponding to the GOA driving unit is configured in such a way that the first pixel unit, the second pixel unit, and the third pixel unit have an equal feedback voltage; and
wherein the capacitance of the output is in a range from 10 fF to 1000 pF.

### Claim 3 (depends on 2)

The GOA driving panel according to claim 2, wherein the output capacitors corresponding to different stages of GOA driving units have a same capacitance.

### Claim 4 (depends on 1)

The GOA driving panel according to claim 1, wherein different feedback voltages corresponding to different positions of a same scanning line have an almost equal value.