Display panel and method of fabricating the same

Patent metadata

Field	Value
Publication number	US-11435843-B2
Application number	US-202117446830-A
Country	US
Kind code	B2
Filing date	Sep 2, 2021
Priority date	Oct 28, 2020
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A display panel and a fabrication method thereof are provided. The display panel includes pixels, data lines and scan lines. The pixels are arranged in pixel rows and pixel columns, and each pixel has subpixels. The data lines are configured to transmit data signals to the pixels, and each data line has a non-straight and continuously curved shape or a non-straight and continuously bent shape. The scan lines are configured to sequentially transmit scan signals to the pixels. The subpixels of each pixel are coupled to different scan lines, and each data line is curved or bent with respect to a unit of one pixel. Accordingly, the display panel of the invention can avoid the problems of poor image display and vertical line (V-line) defects as well as reducing power consumption.

First claim

What is claimed is:

1. A display panel comprising:
a plurality of pixels arranged in a plurality of pixel rows and a plurality of pixel columns, each of the pixels having a plurality of subpixels;
a plurality of data lines configured to transmit a plurality of data signals to the pixels, each of the data lines having a non-straight and continuously curved shape or a non-straight and continuously bent shape; and
a plurality of scan lines configured to sequentially transmit a plurality of scan signals to the pixels;
wherein the subpixels of each of the pixels are coupled to different scan lines, and each of the data lines is curved or bent with respect to a unit of one pixel.

2. The display panel of claim 1 , wherein the second to the penultimate of the data lines respectively have a plurality of first segments and a plurality of second segments, and the first segments and the second segments of the same data line are respectively coupled to two adjacent pixel columns.

3. The display panel of claim 1 further comprising:
a plurality of touch sensing lines configured to provide a plurality of touch sensing signals, each of the touch sensing lines having a non-straight and continuously curved shape or a non-straight and continuously bent shape, and each of the touch sensing lines is curved or bent with respect to a unit of one pixel.

4. The display panel of claim 3 , wherein the data lines and the touch sensing lines are formed from the same metal layer.

5. The display panel of claim 4 , wherein a distance between two adjacent data line and touch sensing line in the data lines and the touch sensing lines is 3 microns to 5 microns.

6. The display panel of claim 3 further comprising:
a pixel electrode layer having a plurality of pixel electrodes that are respectively in the subpixels of the pixels; and
a common electrode layer having a plurality of common electrodes that are respectively coupled to the touch sensing lines.

7. The display panel of claim 6 , wherein each of the common electrodes has an opening directly over at least one of the touch sensing lines.

8. The display panel of claim 6 , wherein the common electrode layer is over the pixel electrode layer, and each of the common electrodes is coupled to at least one of the touch sensing lines via at least one first through hole.

9. The display panel of claim 6 , wherein the pixel electrode layer is over the common electrode layer and further comprises a plurality of bridge electrodes, and each of the common electrodes is coupled to at least one of the touch sensing lines via at least one of the bridge electrodes.

10. The display panel of claim 9 , wherein each of the pixel electrodes is coupled to a pixel transistor of one of the subpixels via a second through hole.

11. The display panel of claim 6 , wherein each of the common electrodes has an opening directly over at least one of the scan lines.

12. A method of fabricating a display panel, the method comprising:
forming a first metal layer over a substrate, the first metal layer comprising a plurality of scan lines; and
forming a second metal layer over the first metal layer, the second metal layer comprising a plurality of data lines and a plurality of touch sensing lines, the data lines and the touch sensing lines having a non-straight and continuously curved shape or a non-straight and continuously bent shape;
wherein the scan lines and the data lines cooperatively define a plurality of subpixels, the subpixels are respectively coupled to the scan lines, and the data lines and the touch sensing lines are curved or bent with respect to a unit of three subpixels.

13. The method of claim 12 further comprising:
forming a pixel electrode layer over the second metal layer, the pixel electrode layer comprising a plurality of pixel electrodes that are respectively in the subpixels; and
forming a common electrode layer over the pixel electrode layer, the common electrode layer comprising a plurality of common electrodes that are respectively coupled to the touch sensing lines.

14. The method of claim 13 further comprising:
patterning the common electrode layer to form an opening of the common electrodes directly over the touch sensing lines.

15. The method of claim 12 further comprising:
forming a common electrode layer over the second metal layer, the common electrode layer comprising a plurality of common electrodes that are respectively coupled to the touch sensing lines; and
forming a pixel electrode layer over the common electrode layer, the pixel electrode layer comprising a plurality of pixel electrodes that are respectively in the subpixels.

16. The method of claim 15 further comprising:
patterning the common electrode layer to form an opening of the common electrodes directly over the touch sensing lines.

Assignees

• Hannstar Display Corp

Inventors

• Chen Jing-Xuan
• Yeh Cheng-Yen
• Kang Mu-Kai
• Huang Sz-Kai

Classifications

• G06F2203/04103

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

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title

• G06F3/0448

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title