IN-CELL TOUCH DISPLAY PANEL STRUCTURE USING CONDUCTIVE WIRES TO CONNECT WITH SENSING ELECTRODES

• US 20140375911A1
• Filed: 09/10/2014
• Published: 12/25/2014
• Est. Priority Date: 09/14/2012
• Status: Active Grant

• Current Assignee: Superc-Touch Corporation
• Original Assignee: Superc-Touch Corporation
• Inventors: LEE, Hsiang-Yu
• Granted Patent: US 9,977,272 B2
• Time in Patent Office: Days
• US Class Current: 349/12
• 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 1/133603 with LEDs
• CPC Class Codes: G02F 1/134336 Matrix
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• 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
• 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

An in-cell touch display panel structure includes upper and lower substrates configured therebetween a display material layer, a black matrix sensing electrode layer, a sensing electrode trace layer, and an insulation layer. The black matrix sensing electrode layer is composed of a plurality of opaque conductor lines, which are patterned to form a plurality of sensing electrodes. The sensing electrode trace layer is composed of a plurality of trace conductor lines. The insulation layer is disposed between the sensing electrode trace layer and the black matrix sensing electrode layer. Each sensing electrode is connected with at least one trace conductor line. The plurality of trace conductor lines are disposed at positions corresponding to those of the plurality of opaque conductor lines of the black matrix sensing electrode layer.

Claims

1. An in-cell touch display panel structure using conductive wires to connect with sensing electrodes, comprising:

an upper substrate;

a lower substrate parallel to the first substrate;

a display material layer configured between the upper substrate and the lower substrate;

a black matrix sensing electrode layer disposed on one surface of the upper substrate facing the display material layer, the black matrix sensing electrode layer being composed of a plurality of opaque conductor lines, wherein a plurality of sensing electrodes are formed by patterning part of the plurality of opaque conductor lines;

a sensing electrode trace layer disposed on one surface of the black matrix sensing electrode layer facing the display material layer, the sensing electrode trace layer being composed of a plurality of trace conductor lines; and

an insulation layer disposed between the sensing electrode trace layer and the black matrix sensing electrode layer,

wherein each sensing electrode is connected with at least one trace conductor line, and the plurality of trace conductor lines are disposed at positions corresponding to those of the plurality of opaque conductor lines of the black matrix sensing electrode layer.

2. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 1, wherein the plurality of sensing electrodes are N polygonal regions and any two polygonal regions are not electrically connected with each other on the black matrix sensing electrode layer, so as to form a single-layered sensing touch pattern on the black matrix sensing electrode layer, where N is an integer greater than one.

3. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 2, wherein the trace conductor lines connected with different sensing electrodes are not connected with each other.

4. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 3, wherein the plurality of sensing electrodes of the black matrix sensing electrode layer are arranged in a first direction and a second direction, the first direction being substantially vertical to the second direction.

5. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 4, wherein the plurality of trace conductor lines of the sensing electrode trace layer are made of conductive metal material or alloy.

6. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 5, further comprising:

a color filter layer disposed on a surface of the black matrix sensing electrode layer facing the display material layer; and

a thin film transistor layer disposed on one surface of the lower substrate facing the display material layer.

7. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 6, wherein the display material layer is a liquid crystal layer.

8. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 6, wherein the display material layer is an OLED layer.

9. An in-cell touch display panel structure using conductive wires to connect with sensing electrodes, comprising:

an upper substrate;

a lower substrate parallel to the first substrate;

a display material layer configured between the upper substrate and the lower substrate;

a black matrix layer disposed on one surface of the upper substrate facing the display material layer, the black matrix layer being composed of a plurality of opaque lines;

a sensing electrode layer formed on one surface of the black matrix layer facing the display material layer, the sensing electrode layer being composed of a plurality of conductor lines, the plurality of conductor lines being patterned to form a plurality of sensing electrodes;

an insulation layer disposed on one surface of the sensing electrode layer facing the display material layer; and

a sensing electrode trace layer disposed on one surface of the insulation layer facing the display material layer, the sensing electrode trace layer being composed of a plurality of trace conductor lines,

wherein each sensing electrode is connected with at least one trace conductor line, and the plurality of trace conductor lines are disposed at positions corresponding to those of the plurality of opaque lines of the black matrix layer.

10. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 9, wherein the plurality of sensing electrodes are N polygonal regions and any two polygonal regions are not electrically connected with each other on the sensing electrode layer, so as to form a single-layered sensing touch pattern on the sensing electrode layer, where N is an integer greater than one.

11. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 10, wherein the trace conductor lines connected with different sensing electrodes are not connected with each other.

12. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 11, wherein the plurality of sensing electrodes of the sensing electrode layer are arranged in a first direction and a second direction, the first direction being substantially vertical to the second direction.

13. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 12, wherein the plurality of trace conductor lines of the sensing electrode trace layer are made of conductive metal material or alloy.

14. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 13, further comprising:

a color filter layer disposed on a surface of the black matrix layer facing the display material layer; and

a thin film transistor layer disposed on one surface of the lower substrate facing the display material layer.

15. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 14, wherein the display material layer is a liquid crystal layer.

16. The in-cell touch display panel structure using conductive wires to connect with sensing electrodes as claimed in claim 14, wherein the display material layer is an OLED layer.