In-Cell Touch Display Panel Structure with Metal Layer for Sensing

• US 20130314371A1
• Filed: 05/10/2013
• Published: 11/28/2013
• Est. Priority Date: 05/22/2012
• Status: Abandoned Application

• Current Assignee: Superc-Touch Corporation
• Original Assignee: Superc-Touch Corporation
• Inventors: LEE, Hsiang-Yu
• Application Number:
  US13/891,897
• Publication Number:
  US 20130314371A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

An in-cell touch display panel structure with metal layer for sensing includes a first substrate, a second substrate, a liquid crystal layer, a black matrix layer and a sensing electrode layer. The first substrate and the second substrate are in parallel with each other and the liquid crystal layer is configured between the first substrate and the second substrates. The black matrix layer is composed of a plurality of opaque lines. The sensing electrode layer is disposed at one surface of the black matrix layer facing the liquid crystal layer. The sensing electrode layer is composed of a plurality of sensing conductive lines. The plurality of sensing conductive lines is disposed corresponding to positions of the plurality of opaque lines of the black matrix.

Claims

1. An in-cell touch display panel structure with metal layer for sensing, comprising:

a first substrate;

a second substrate parallel to the first substrate;

a liquid crystal layer configured between the first substrate and the second substrates;

a black matrix layer disposed at one surface of the first substrate facing the liquid crystal layer, the black matrix layer being composed of a plurality of opaque lines; and

a sensing electrode layer disposed at one surface of the black matrix layer facing the liquid crystal layer, the sensing electrode layer being composed of a plurality of sensing conductive lines,

wherein the plurality of sensing conductive lines is disposed corresponding to positions of the plurality of opaque lines of the black matrix.

2. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 1, wherein the plurality of sensing conductive lines are divided into a first group of sensing conductive lines and a second group of sensing conductive lines, the first group of sensing conductive lines being formed with N quadrilateral regions, where N is a positive integer, the sensing conductive lines in any one of the quadrilateral regions being electrically connected together while the sensing conductive lines in any two quadrilateral regions are not electrically connected, so as to form a single-layered touch pattern on the sensing electrode layer.

3. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 2, the second group of sensing conductive lines is formed with N conductive traces, each of the N conductive traces being electrically connected to a corresponding quadrilateral region, while any two conductive traces are not electrically connected.

4. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 3, wherein the plurality of sensing conductive lines of the sensing electrode layer are arranged in a first direction and a second direction.

5. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 4, wherein the first direction is vertical with the second direction.

6. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 5, further comprising a color filter layer that is disposed among the plurality of sensing conductive lines of the sensing electrode layer and on the surface of the plurality of sensing conductive lines.

7. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 6, further comprising an over coating layer disposed on a surface of the color filter.

8. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 7, further comprising a common electrode layer disposed between the first substrate and the second substrate.

9. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 8, further comprising:

a thin film transistor (TFT) layer disposed at a surface of the second substrate facing the liquid crystal layer.

10. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 9, wherein each of the quadrilateral regions is formed in a rectangle, square, or rhombus shape.

11. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 10, wherein the plurality of sensing conductive lines of the sensing electrode layer are made of conductive metal material or alloy material.

12. The in-cell touch display panel structure with metal layer for sensing as claimed in claim 11, wherein the conductive metal material is selectively to be chromium, barium, and aluminum.