Driving circuit with multiple stage registers performing voltage regulation

Patent metadata

Field	Value
Publication number	US-11250754-B2
Application number	US-202016941624-A
Country	US
Kind code	B2
Filing date	Jul 29, 2020
Priority date	Dec 6, 2019
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

A driving circuit includes a S stage register, a first connect line, a (S+A) stage register and a second connect line. The S stage register receives a S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs a S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.

First claim

What is claimed is:

1. A driving circuit, comprising:
an S stage register comprising a first voltage regulator circuit, wherein the first voltage regulator circuit of the S stage register comprises a first switch unit of the S stage register and a second switch unit of the S stage register, the first switch unit of the S stage register and the second switch unit of the S stage register are configured to receive an S stage control signal, so that the S stage register performs voltage regulation and outputs an S stage scan signal;
a first connect line electrically connected to the first switch unit of the S stage register;
an (S+A) stage register comprising a first switch unit of the (S+A) stage register, a second switch unit of the (S+A) stage register, a third switch unit of the (S+A) stage register and a fourth switch unit of the (S+A) stage register, wherein the third switch unit of the (S+A) stage register is electrically connected to the first connect line and the fourth switch unit of the (S+A) stage register to receive the S stage control signal, so that the (S+A) stage register performs voltage regulation, both S and A are positive integers; and
a second connect line electrically connected to a control terminal of the second switch unit of the S stage register and a control terminal of the fourth switch unit of the (S+A) stage register.

2. The driving circuit of claim 1 , wherein the first voltage regulator circuit of the S stage register further comprises a third switch unit of the S stage register and a fourth switch unit of the S stage register, the third switch unit of the S stage register and the fourth switch unit of the S stage register are electrically connected through a third connect line to receive an (S−B) stage control signal, so that the S stage register performs voltage regulation.

3. The driving circuit of claim 2 , wherein the third switch unit of the S stage register and the fourth switch unit of the S stage register are arranged between the first switch unit of the S stage register and the second switch unit of the S stage register.

4. The driving circuit of claim 3 , wherein the S stage register further comprises:
a second voltage regulator circuit of the S stage register comprising a fifth switch unit of the S stage register, a sixth switch unit of the S stage register, a seventh switch unit of the S stage register and a eighth switch unit of the S stage register, wherein the fifth switch unit of the S stage register is electrically connected to the first connect line, the sixth switch unit of the S stage register is electrically connected to the second connect line, and the seventh switch unit of the S stage register and the eighth switch unit of the S stage register are electrically connected through the third connect line.

5. The driving circuit of claim 4 , wherein positions of the fifth switch unit of the S stage register, the sixth switch unit of the S stage register, the seventh switch unit of the S stage register and the eighth switch unit of the S stage register are centered on the third connect line, and are symmetrical with the positions of the first switch unit of the S stage register, the second switch unit of the S stage register, the third switch unit of the S stage register and the fourth switch unit of the S stage register.

6. The driving circuit of claim 1 , wherein the (S+A) stage register further comprises:
a first voltage regulator circuit of the (S+A) stage register configured to receive an (S+A) stage control signal through the first switch unit of the (S+A) stage register and the second switch unit of the (S+A) stage register to perform voltage regulation and output an (S+A) stage scan signal.

7. The driving circuit of claim 6 , wherein the (S+A) stage register further comprises:
a second voltage regulator circuit of the (S+A) stage register comprising a fifth switch unit of the (S+A) stage register, a sixth switch unit of the (S+A) stage register, a seventh switch unit of the (S+A) stage register and an eighth switch unit of the (S+A) stage register, wherein the fifth switch unit of the (S+A) stage register and the sixth switch unit of the (S+A) stage register are configured to receive the (S+A) stage control signal, and the seventh switch unit of the (S+A) stage register and the eighth switch unit of the (S+A) stage register are electrically connected through a fourth connect line.

8. The driving circuit of claim 7 , wherein positions of the fifth switch unit of the (S+A) stage register, the sixth switch unit of the (S+A) stage register, the seventh switch unit of the (S+A) stage register and the eighth switch unit of the (S+A) stage register are centered on the fourth connect line, and are symmetrical with the positions of the first switch unit of the (S+A) stage register, the second switch unit of the (S+A) stage register, the third switch unit of the (S+A) stage register and the fourth switch unit of the (S+A) stage register.

9. The driving circuit of claim 1 , wherein the first connect line and the second connect line are arranged along a first direction, and the S stage register and the (S+A) stage register are arranged along the first direction.

10. The driving circuit of claim 1 , wherein the first switch unit of the S stage register and the second switch unit of the S stage register are arranged on a first side of a substrate, and the first connect line and the second connect line are arranged on a second side of the substrate.

Assignees

• Au Optronics Corp

Inventors

• Lin Wei-Li
• Tung Che-Wei

Classifications

• G09G2310/0286

  Details of a shift registers arranged for use in a driving circuit · CPC title

• G09G3/20 Primary

  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} · CPC title

• G09G2300/0408

  Integration of the drivers onto the display substrate · CPC title

• G09G2310/0267

  Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title