VA TYPE IN-CELL TOUCH CONTROL DISPLAY PANEL STRUCTURE

• US 20170139251A1
• Filed: 08/24/2015
• Published: 05/18/2017
• Est. Priority Date: 08/04/2015
• Status: Abandoned Application

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Wang, Cong, Du, Peng
• Application Number:
  US14/778,612
• Publication Number:
  US 20170139251A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133742 for homeotropic alignment
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134318 having a patterned common electrode
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/122 having a particular pattern
• CPC Class Codes: G02F 2202/16 conductive
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

The present invention provides a VA type In-Cell touch control display panel structure, of which the color filter comprises a black matrix (12) of metal material and a common electrode layer (14). The black matrix (12) at least comprises a plurality of first black matrix vertical zones (121) which are separated along a vertical direction, and each independent first black matrix vertical zone (121) is employed to be a touch acceptance electrode (Rx(n)); the common electrode layer (14) at least comprises a plurality of first common electrode horizontal zones (141), which are separated along a horizontal direction, and each independent first common electrode horizontal zone (141) is employed to be a touch transmittance electrode (Tx(m)). The VA type In-Cell touch control display panel structure of the present invention has a simple manufacture flow which can effectively reduce the production cost and promote the yield of the touch control display panel.

Claims

1. A VA type In-Cell touch control display panel structure, comprising a color filter and an array substrate which are oppositely positioned and a liquid crystal layer sandwiched between the color filter and the array substrate;

the color filter comprises a substrate, a black matrix of metal material positioned on the substrate, a color resist layer covering the substrate and the black matrix and a common electrode layer covering the color resist layer;

the black matrix at least comprises a plurality of first black matrix vertical zones which are separated along a vertical direction, and each independent first black matrix vertical zone is employed to be a touch acceptance electrode;

the common electrode layer at least comprises a plurality of first common electrode horizontal zones, which are separated along a horizontal direction, and each independent first common electrode horizontal zone is employed to be a touch transmittance electrode.

2. The VA type In-Cell touch control display panel structure according to claim 1, wherein the black matrix further comprises a second black matrix vertical zone which is positioned between two adjacent first black matrix vertical zones and separated with the two adjacent first black matrix vertical zones, and each independent second black matrix vertical zone is grounded to be a vertical shielding electrode;

a width of the first black matrix vertical zone is larger than a width of the second black matrix vertical zone.

3. The VA type In-Cell touch control display panel structure according to claim 1, wherein the common electrode layer further comprises a second common electrode horizontal zone which is positioned between two adjacent first common electrode horizontal zones and separated with the two adjacent first common electrode horizontal zones, and each independent second common electrode horizontal zone is grounded to be a horizontal shielding electrode;

a width of the first common electrode horizontal zone is larger than a width of the second common electrode horizontal zone.

4. The VA type In-Cell touch control display panel structure according to claim 2, wherein the common electrode layer further comprises a second common electrode horizontal zone which is positioned between two adjacent first common electrode horizontal zones and separated with the two adjacent first common electrode horizontal zones, and each independent second common electrode horizontal zone is grounded to be a horizontal shielding electrode;

a width of the first common electrode horizontal zone is larger than a width of the second common electrode horizontal zone.

5. The VA type In-Cell touch control display panel structure according to claim 1, wherein material of the black matrix is chromium.

6. The VA type In-Cell touch control display panel structure according to claim 1, wherein material of the common electrode layer is ITO.

7. The VA type In-Cell touch control display panel structure according to claim 1, wherein the width of the first black matrix vertical zone is 6 mm, and the width of the first common electrode horizontal zone is 6 mm.

8. The VA type In-Cell touch control display panel structure according to claim 2, wherein the width of the first black matrix vertical zone is 6 mm, and the width of the second black matrix vertical zone is 1 mm.

9. The VA type In-Cell touch control display panel structure according to claim 3, wherein the width of the first common electrode horizontal zone is 6 mm, and the width of the second common electrode horizontal zone is 1 mm.

10. The VA type In-Cell touch control display panel structure according to claim 4, wherein the width of the first common electrode horizontal zone is 6 mm, and the width of the second common electrode horizontal zone is 1 mm.

11. The VA type In-Cell touch control display panel structure according to claim 3, wherein a gap of the common electrode layer is right against the black matrix, and the gap of the common electrode layer is completely shielded by the black matrix.

12. The VA type In-Cell touch control display panel structure according to claim 4, wherein a gap of the common electrode layer is right against the black matrix, and the gap of the common electrode layer is completely shielded by the black matrix.

13. The VA type In-Cell touch control display panel structure according to claim 3, wherein the array substrate comprises metal lines, and metal lines under the first black matrix vertical zone and the second black matrix vertical zone of the black matrix are completely shielded by the black matrix, and the metal lines under a gap of the black matrix completely shield the gap.

14. The VA type In-Cell touch control display panel structure according to claim 4, wherein the array substrate comprises metal lines, and metal lines under the first black matrix vertical zone and the second black matrix vertical zone of the black matrix are completely shielded by the black matrix, and the metal lines under a gap of the black matrix completely shield the gap.

15. A VA type In-Cell touch control display panel structure, comprising a color filter and an array substrate which are oppositely positioned and a liquid crystal layer sandwiched between the color filter and the array substrate;

the color filter comprises a substrate, a black matrix of metal material positioned on the substrate, a color resist layer covering the substrate and the black matrix and a common electrode layer covering the color resist layer;

the black matrix at least comprises a plurality of first black matrix vertical zones which are separated along a vertical direction, and each independent first black matrix vertical zone is employed to be a touch acceptance electrode;

the common electrode layer at least comprises a plurality of first common electrode horizontal zones, which are separated along a horizontal direction, and each independent first common electrode horizontal zone is employed to be a touch transmittance electrode;

wherein the black matrix further comprises a second black matrix vertical zone which is positioned between two adjacent first black matrix vertical zones and separated with the two adjacent first black matrix vertical zones, and each independent second black matrix vertical zone is grounded to be a vertical shielding electrode;

a width of the first black matrix vertical zone is larger than a width of the second black matrix vertical zone;

wherein the common electrode layer further comprises a second common electrode horizontal zone which is positioned between two adjacent first common electrode horizontal zones and separated with the two adjacent first common electrode horizontal zones, and each independent second common electrode horizontal zone is grounded to be a horizontal shielding electrode;

a width of the first common electrode horizontal zone is larger than a width of the second common electrode horizontal zone;

wherein material of the black matrix is chromium;

wherein material of the common electrode layer is ITO;

wherein the width of the first black matrix vertical zone is 6 mm, and the width of the second black matrix vertical zone is 1 mm;

wherein the width of the first common electrode horizontal zone is 6 mm, and the width of the second common electrode horizontal zone is 1 mm;

wherein a gap of the common electrode layer is right against the black matrix, and the gap of the common electrode layer is completely shielded by the black matrix;

wherein the array substrate comprises metal lines, and metal lines under the first black matrix vertical zone and the second black matrix vertical zone of the black matrix are completely shielded by the black matrix, and the metal lines under a gap of the black matrix completely shield the gap.