Integrated touch display panel and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9823800-B2
Application number	US-201615173924-A
Country	US
Kind code	B2
Filing date	Jun 6, 2016
Priority date	Jan 29, 2016
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

The present disclosure describes an integrated touch display panel and a manufacturing method thereof. The integrated touch display panel comprises a gate drive circuit positioned at an edges of two opposite sides of a first substrate, multiple scanning lines are alternately connected to the gate drive circuit positioned at the edges of two sides, and each scanning line is connected with one of the shift register units. There exists at least one scanning line. The pull up/pull down characteristics of a pull up transistor/pull down transistor of the shift register unit connected with the at least one scanning line are different from the pull up/pull down characteristics of a pull up transistor/pull down transistor of the shift register unit connected with a scanning line adjacent to the at least one scanning line.

First claim

The invention claimed is:

1. An integrated touch display panel, comprising:
a first substrate, multiple pixel units, a gate drive circuit, multiple strip-shaped common electrodes, a second substrate, a frame sealing glue and a liquid crystal layer; and, wherein
the multiple pixel units are disposed in a display area on the first substrate, each of the multiple pixel units being limited by an intersection of two adjacent scanning lines of multiple scanning lines and two adjacent data lines of multiple data lines, wherein the multiple scanning lines extend along a first direction, the multiple data lines extend along a second direction, wherein the first direction is perpendicular to the second direction;
the gate drive circuit comprises a first gate drive circuit positioned at an edge of a first side of the first substrate and a second gate drive circuit positioned at an edge of a second side of the first substrate, the first side and the second side being parallel to the second direction, wherein each of the first gate drive circuit and the second gate drive circuit comprises multiple cascade-connected shift register units, each of the multiple shift register units comprising a pull down transistor and a pull up transistor, and wherein the multiple scanning lines are alternately connected to the first gate drive circuit and the second gate drive circuit, and each of the multiple scanning lines is connected with one of the multiple shift register units;
the multiple pixel units comprise a first pixel unit and a second pixel unit, the first pixel unit and a second pixel unit being adjacent along the second direction, wherein the first pixel unit comprises a first strip-shaped pixel electrode, the second pixel unit comprises a second strip-shaped pixel electrode, an extension direction of the first strip-shaped pixel electrode and an extension direction of the second strip-shaped pixel electrode are symmetrical or substantially symmetrical with respect to the first direction, the first pixel unit is connected to a scanning line connected with the first gate drive circuit, and the second pixel unit is connected to a scanning line connected with the second gate drive circuit;
the pull up transistor of at least one of the shift register units connected with a first scanning line have pull up characteristics that are different from pull up characteristics of the pull up transistor of a shift register unit connected with a second scanning line adjacent to the first scanning line, or the pull down transistor of the at least one of the shift register units connected with the first scanning line has pull down characteristics that are different from pull down characteristics of the pull down transistor of the shift register unit connected with the second scanning line adjacent to the first scanning line;
the multiple strip-shaped common electrodes serve as touch drive electrodes in a touch stage;
the second substrate are arranged oppositely to the first substrate;
the frame sealing glue is disposed on edges of a t surface of the first substrate and a surface of the second substrate opposite to each other; and
a liquid crystal layer sandwiched in accommodating space formed among the first substrate, the second substrate and the frame sealing glue.

2. The integrated touch display panel according to claim 1 , further comprising a first polarizer and a second polarizer, wherein
the first polarizer is disposed on a surface of the first substrate far from the second substrate and has a first transmittance axis; and
the second polarizer is disposed on a surface of the second substrate far from the first substrate, and has a second transmittance axis.

3. The integrated touch display panel according to claim 2 , wherein an included angle between an extension direction of the first transmittance axis and the extension direction of the first strip-shaped pixel electrode is α, and the included angle between the extension direction of the first transmittance axis and the extension direction of the second strip-shaped pixel electrode is β, wherein α is not equal to β.

4. The integrated touch display panel according to claim 2 , wherein the extension direction of the first transmittance axis is perpendicular to that of the second transmittance axis.

5. The integrated touch display panel according to claim 2 , wherein a maximum brightness of a row of pixel units connected with the at least one scanning line is A, and the maximum brightness of a row of pixel units connected with a scanning line adjacent to the at least one scanning line is B, wherein 0.94≦B/A≦1.06.

6. The integrated touch display panel according to claim 2 , wherein the pull up characteristics of the pull up transistor of one of the shift register units of the first drive circuit are different from the pull up characteristics of the pull up transistor of one of the shift register units of the second drive circuit, or the pull down characteristics of the pull down transistor of one of the shift register units of the first drive circuit are different from the pull down characteristics of the pull down transistor of one of the shift register units of the second drive circuit.

7. The integrated touch display panel according to claim 6 , wherein an average maximum brightness of a pixel unit connected with the gate drive circuit at one side is A′, and an average maximum brightness of a pixel unit connected with the gate drive circuit at the other side is B′, wherein 0.94≦B′/A′≦1.06.

8. The integrated touch display panel according to claim 1 , wherein the multiple strip-shaped common electrodes extend along the second direction and are arranged along the first direction.

9. The integrated touch display panel according to claim 1 , wherein multiple strip-shaped detection electrodes are disposed on a surface of the second substrate, the multiple strip-shaped detection electrodes extend along the first direction and are arranged along the second direction.

10. A manufacturing method of an integrated touch display panel, comprising:
providing a first substrate;
forming multiple pixel units and a drive circuit on the first substrate;
providing a second substrate; and
performing alignment laminating on the first substrate and the second substrate by means of frame sealing glue, wherein the frame sealing glue is disposed on edges of a t surface of the first substrate and a surface of the second substrate opposite to each other; and a liquid crystal layer is sandwiched in accommodating space formed among the first substrate, the second substrate and the frame sealing glue; and, wherein
the pixel units are disposed in a display area on the first substrate, each of the multiple pixel units being limited by an intersection of two adjacent scanning lines of multiple scanning lines and two adjacent data lines of multiple data lines, wherein the multiple scanning lines extend along a first direction, the multiple data lines extend along a second direction, wherein the first direction is perpendicular to the second direction;
the gate drive circuit comprises a first gate drive circuit positioned at an edge of a first side of the first substrate and a second gate drive circuit positioned at an edge of a second side of the first substrate, the first side and the second side being parallel to the second direction, wherein each of the first gate drive circuit and the second gate drive circuit comprises multiple cascade-connected shift register units, each of the multiple shift register units comprising a pull down transistor and a pull up transistor, and wherein the multiple scanning lines are alternately connected to the first gate drive circuit and the second gate drive circuit, and each of the multip

Assignees

• Shanghai Avic Opto Electronics Co Ltd
• Tianma Microelectronics Co Ltd

Inventors

• Jin Huijun

Classifications

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title