COLOR FILTER TOUCH SENSING SUBSTRATE AND DISPLAY PANEL AND MANUFACTURING METHODS OF THE SAME

• US 20100149117A1
• Filed: 05/26/2009
• Published: 06/17/2010
• Est. Priority Date: 12/11/2008
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Chien, Yu-Feng, Huang, Wei-Ming, Yang, Tun-Chun, Lee, Seok-Lyul
• Granted Patent: US 8,519,967 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A manufacturing method of a color filter touch sensing substrate is provided. Firstly, a first film is formed on a substrate. The first film includes a plurality of first and second touch sensors and a plurality of first bridge lines for electrically connecting the first touch sensors in the same column. Then, a second film is formed on the substrate. The second film includes a plurality of second bridge lines for electrically connecting the second touch sensors in the same row. Next, a light shielding pattern layer is formed between the first and the second films. The light shielding pattern layer is used to define a plurality of sub-pixel regions on the substrate. Afterward, a plurality of color filter pattern layers is formed in the sub-pixel regions. Furthermore, a color filter touch sensing substrate, a display panel and manufacturing methods thereof are also provided.

Claims

1. A manufacturing method of a color filter touch sensing substrate, comprising:

forming a first film on a substrate, wherein the first film comprises a plurality of first touch sensors, a plurality of second touch sensors, and a plurality of first bridge lines electrically connecting the plurality of first touch sensors in the same column;

forming a second film on the substrate, wherein the second film comprises a plurality of second bridge lines electrically connecting the plurality of second touch sensors in the same row;

forming a light shielding pattern layer between the first film and the second film so as to define a plurality of sub-pixel regions on the substrate, wherein a portion the light shielding pattern layer is disposed at junctions between the plurality of second bridge lines and the plurality of first bridge lines; and

forming a plurality of color filter pattern layers in the plurality of sub-pixel regions.

2. The manufacturing method as claimed in claim 1, wherein the method of forming the first film, the second film, and the light shielding pattern layer comprises:

forming the plurality of first touch sensors, the plurality of second touch sensors, and the plurality of first bridge lines electrically connecting the first touch sensors in the same column on the substrate;

forming the light shielding pattern layer, wherein a portion of the light shielding pattern layer covers the plurality of first bridge lines; and

forming the plurality of second bridge lines, wherein the plurality of second bridge lines cross over the light shielding pattern layer covering the plurality of first bridge lines so as to electrically connect the plurality of second touch sensors in the same row.

3. The manufacturing method as claimed in claim 1, wherein the method of forming the first film, the second film, and the light shielding pattern layer comprises:

forming the plurality of second bridge lines on the substrate;

forming the light shielding pattern layer on the plurality of second bridge lines, the light shielding pattern layer exposing both ends of the plurality of second bridge lines, and

forming the plurality of first touch sensors, the plurality of second touch sensors, and the plurality of first bridge lines crossing over the plurality of second bridge lines and electrically connecting the plurality of first touch sensors in the same column on the light shielding pattern layer, wherein the plurality of second touch sensors contacts with the plurality of second bridge lines exposed so as to electrically connect each other in the same row.

4. The manufacturing method as claimed in claim 1, further comprising forming a plurality of periphery circuit electrically connected to the plurality of first touch sensors and the plurality of second touch sensors on the substrate.

5. The manufacturing method as claimed in claim 1, further comprising forming at least an alignment pattern in the periphery of the substrate.

6. The manufacturing method as claimed in claim 1, wherein each of the plurality of second bridge lines crosses over the light shielding pattern layer between two adjacent sub-pixel regions, such that the plurality of second touch sensors in the same row are electrically connected.

7. The manufacturing method as claimed in claim 1, wherein a width of the light shielding pattern layer is smaller than a width of the plurality of first bridge lines, and each of the plurality of second bridge lines crosses over at least two sub-pixel regions so as to electrically connect the plurality of second touch sensors in the same row.

8. The manufacturing method as claimed in claim 1, further comprising:

forming a covering layer on the plurality of color filter pattern layers; and

forming an electrode layer on the covering layer.

9. The manufacturing method as claimed in claim 1, wherein a material of the plurality of second bridge lines is a metal or a transparent conductive material.

10. The manufacturing method as claimed in claim 1, wherein a material of the light shielding pattern layer comprises black resins.

11. A color filter touch sensing substrate, comprising:

a first film, disposed on a substrate, wherein the first film comprises a plurality of first touch sensors, a plurality of second touch sensors, and a plurality of first bridge lines electrically connecting the plurality of first touch sensors in the same column;

a second film, disposed on the substrate, wherein the second film comprises a plurality of second bridge lines electrically connecting the plurality of second touch sensors in the same row;

a light shielding pattern layer, disposed between the first film and the second film to define a plurality of sub-pixel regions on the substrate, wherein a portion the light shielding pattern layer is disposed at junctions between the plurality of second bridge lines and the plurality of first bridge lines; and

a plurality of color filter pattern layers, disposed within the plurality of sub-pixel regions.

12. The substrate as claimed in claim 11, wherein

the plurality of first touch sensors, the plurality of second touch sensors, and the plurality of first bridge lines are disposed on a surface of the substrate;

the light shielding pattern layer is disposed on the plurality of first touch sensors and the plurality of second touch sensors, wherein a portion of the light shielding pattern layer covers the plurality of first bridge lines; and

the plurality of second bridge lines cross over the light shielding pattern layer covering the plurality of first bridge lines so as to electrically connect the plurality of second touch sensors in the same row.

13. The substrate as claimed in claim 11, wherein:

the plurality of second bridge lines is disposed on the surface of the substrate;

the light shielding pattern layer is disposed on the plurality of second bridge lines, and the light shielding pattern layer exposes both ends of the plurality of second bridge lines; and

the plurality of first touch sensors, the plurality of second touch sensors, and the plurality of first bridge lines are disposed on the light shielding pattern layer, wherein the plurality of first bridge lines cross over the plurality of second bridge lines so as to electrically connect the plurality of first touch sensors in the same column, and the plurality of second touch sensors in the same row are electrically connected through the plurality of second bridge lines exposed.

14. The substrate as claimed in claim 11, further comprising

at least an alignment pattern, disposed in the periphery of the substrate;

and

a plurality of periphery circuit, electrically connected to the plurality of first touch sensors and the second touch sensors.

15. The substrate as claimed in claim 11, wherein each of the plurality of second bridge lines crosses over the light shielding pattern layer between two adjacent sub-pixel regions, so as to electrically connect the plurality of second touch sensors in the same row.

16. The substrate as claimed in claim 11, wherein a width of the light shielding pattern layer is smaller than a width of the plurality of first bridge lines, and each of the plurality of second bridge lines crosses over at least two sub-pixel regions so as to electrically connect the plurality of second touch sensors in the same row.

17. The substrate as claimed in claim 11, further comprising

a covering layer, disposed on the plurality of color filter pattern layers;

and

an electrode layer, disposed on the covering layer.

18. The substrate as claimed in claim 11, wherein a material of the plurality of second bridge lines is a metal or a transparent conductive material.

19. The substrate as claimed in claim 11, wherein a material of the light shielding pattern layer comprises black resins.

20. A manufacturing method of a display panel, comprising:

forming a first film on a substrate, wherein the first film comprises a plurality of first touch sensors, a plurality of second touch sensors, and a plurality of first bridge lines electrically connecting the plurality of first touch sensors in the same column;

forming a second film on the substrate, wherein the second film comprises a plurality of second bridge lines electrically connecting the plurality of second touch sensors in the same row;

forming a light shielding pattern layer between the first film and the second film so as to define a plurality of sub-pixel regions on the substrate, wherein a portion the light shielding pattern layer is disposed at junctions between the plurality of second bridge lines and the plurality of first bridge lines;

forming a plurality of color filter pattern layers to form a color filter touch sensing substrate;

providing an active device array substrate; and

assembling the active device array substrate and the color filter touch sensing substrate and filling a liquid crystal layer between the active device array substrate and the color filter touch sensing substrate.

21. A display panel, comprising:

a color filter touch sensing substrate, comprising;

a first film, disposed on a substrate, wherein the first film comprises a plurality of first touch sensors, a plurality of second touch sensors, and a plurality of first bridge lines electrically connecting the plurality of first touch sensors in the same column;

a second film, disposed on the substrate, wherein the second film comprises a plurality of second bridge lines so as to electrically connect the plurality of second touch sensors in the same row; and

a light shielding pattern layer, disposed between the first film and the second film to define a plurality of sub-pixel regions on the substrate, wherein a portion the light shielding pattern layer is disposed at junctions between the plurality of second bridge lines and the plurality of first bridge lines; and

a plurality of color filter pattern layers, disposed within the plurality of sub-pixel regions.

an active device array substrate, disposed opposite to the color filter substrate; and

a liquid crystal layer, disposed between the active device array substrate and the color filter touch sensing substrate.