Single-layer touch display panel and device

Patent metadata

Field	Value
Publication number	US-10545595-B2
Application number	US-201815933093-A
Country	US
Kind code	B2
Filing date	Mar 22, 2018
Priority date	Jul 18, 2017
Publication date	Jan 28, 2020
Grant date	Jan 28, 2020

Abstract

A single-layer touch display panel and a device. The single-layer touch display panel includes a plurality of single-layer touch units and a plurality of display units. Each of the plurality of display units includes a red sub-pixel column, a green sub-pixel column and a blue sub-pixel column which are arranged side by side. Each of the plurality of single-layer touch units includes a transmitting electrode and a sensing electrode, which are adjacent to each other. Along a thickness direction of the single-layer touch display panel, an orthographic projection of each of the plurality of single-layer touch units respectively falls into an orthographic projection of one of the plurality of display units.

First claim

What is claimed is:

1. A single-layer touch display panel, comprising:
a plurality of single-layer touch units, each of the plurality of single-layer touch units comprises a transmitting electrode and a sensing electrode which are adjacent to each other;
a plurality of display units, each of the plurality of display units comprises a red sub-pixel column, a green sub-pixel column and a blue sub-pixel column which are arranged side by side; wherein,
along a thickness direction of the single-layer touch display panel, an orthographic projection of each of the plurality of single-layer touch units respectively falls into an orthographic projection of one of the plurality of display units, wherein, an orthographic projection of the sensing electrode falls into an orthographic projection of the green sub-pixel column, an orthographic projection of the transmitting electrode falls into an orthographic projection of the red sub-pixel column and the blue sub-pixel column,
wherein each sub-pixel comprises a thin film transistor electrically connected to a plurality of strip sub-electrodes, and
wherein a length and a width of a channel of the thin film transistor in a red sub-pixel and those in a blue sub-pixel are greater than a length and a width of a channel of the thin film transistor of a green sub-pixel, respectively.

2. The single-layer touch display panel according to claim 1 , wherein, in each of the plurality of display units, both of an aperture ratio of the red sub-pixel and an aperture ratio of the blue sub-pixel are greater than an aperture ratio of the green sub-pixel.

3. The single-layer touch display panel according to claim 2 , wherein, both of the aperture ratio of the red sub-pixel and the aperture ratio of the blue sub-pixel are 2%-5% greater than the aperture ratio of the green sub-pixel.

4. The single-layer touch display panel according to claim 1 , wherein, in each of the plurality of display units, each sub-pixel comprises the plurality of strip sub-electrodes configured to drive a liquid crystal; wherein,
a width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel and that in the blue sub-pixel are greater than a width of each of the plurality of strip sub-electrodes comprised in the green sub-pixel, in a case in which widths of gaps between adjacent ones of the plurality of strip sub-electrodes of each sub-pixel are same.

5. The single-layer touch display panel according to claim 4 , wherein, the width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel and that in the blue sub-pixel are 1%-3% greater than the width of each of the plurality of strip sub-electrodes comprised in the green sub-pixel.

6. A single-layer touch display panel, comprising:
a plurality of single-layer touch units, each of the plurality of single-layer touch units comprises a transmitting electrode and sensing electrode which are adjacent to each other;
a plurality of display units, each of the plurality of display units comprises a red sub-pixel column, a green sub-pixel column and a blue sub-pixel column which are arranged side by side; wherein,
along a thickness direction of the single-layer touch display panel, an orthographic projection of each of the plurality of the single-layer touch units respectively falls into an orthographic projection of each of the plurality of the display units, wherein,
an orthographic projection of the sensing electrode falls into an orthographic projection of one of the red sub-pixel column and the blue sub-pixel column, an orthographic projection of the transmitting electrode falls into an orthographic projection of the green sub-pixel column and another one of the red sub-pixel column and the blue sub-pixel column;
each sub-pixel in each of the plurality of display units comprises a plurality of strip sub-electrodes configured to drive a liquid crystal, wherein, widths of gaps between the adjacent ones of the plurality of strip sub-electrodes of each sub-pixel are same;
a width of each of the plurality of strip sub-electrodes comprised in a red sub-pixel and that in a blue sub-pixel are greater than a width of each of the plurality of strip sub-electrodes comprised in a green sub-pixel,
wherein each sub-pixel comprises a thin film transistor electrically connected to a plurality of strip sub-electrodes, and
wherein a length and a width of a channel of the thin film transistor in a first sub-pixel are greater than a length and a width of a channel of the thin film transistor in a second sub-pixel, respectively, wherein, the width of each of the plurality of strip sub-electrodes comprised in the first sub-pixel is greater than the width of each of the plurality of strip sub-electrodes comprised in the second sub-pixel.

7. The single-layer touch display panel according to claim 6 , wherein, the width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel and that in the blue sub-pixel are 3.5%-5.5% greater than the width of each of the plurality of strip sub-electrodes comprised in the green sub-pixel.

8. The single-layer touch display panel according to claim 6 , wherein,
the orthographic projection of the transmitting electrode falls into the orthographic projection of the red sub-pixel column and the green sub-pixel column, the orthographic projection of the sensing electrode falls into the orthographic projection of the blue sub-pixel column;
the width of each of the plurality of strip sub-electrodes comprised in the blue sub-pixel is greater than the width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel.

9. The single-layer touch display panel according to claim 8 , wherein, the width of each of the plurality of strip sub-electrodes comprised in the blue sub-pixel is 0.5%-1.0% greater than the width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel.

10. The single-layer touch display panel according to claim 6 , wherein,
the orthographic projection of the transmitting electrode falls into the orthographic projection of the green sub-pixel column and the blue sub-pixel column, the orthographic projection of the sensing electrodes falls into the orthographic projection of the red sub-pixel column;
the width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel is greater than the width of each of the plurality of strip sub-electrodes comprised in the blue sub-pixel.

11. The single-layer touch display panel according to claim 10 , wherein, the width of each of the plurality of strip sub-electrodes comprised in the red sub-pixel is 0.5%-1.0% greater than the width of each of the plurality of strip sub-electrodes comprised in the blue sub-pixel.

12. A single-layer touch display device, comprising a single-layer touch display panel according to claim 1 .

13. A single-layer touch display device, comprising a single-layer touch display panel according to claim 6 .

14. The single-layer touch display panel according to claim 1 , wherein, the area where the red sub-pixel is located is larger than the area where the green sub-pixel is located, and the area where the blue sub-pixel is located is larger than the area where the green sub-pixel is located.

15. The single-layer touch display panel according to claim 1 , wherein, the aperture ratio of the blue sub-pixel is slightly greater than the aperture ratio of the red sub-pixel.

16. The single-layer touch display panel according to claim 1 , wherein, the transmitting electrode of each of the plurality of single-layer touch units includes a plurality of bl

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Liu Xu
• Zhou Gang
• Wang Limiao
• Guo Mingzhou

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G09G2300/0478

  related to liquid crystal pixels · CPC title

• G09G3/3611

  Control of matrices with row and column drivers · CPC title

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title