High-accuracy OLED touch display panel structure of narrow border

Patent metadata

Field	Value
Publication number	US-9262001-B2
Application number	US-201414333292-A
Country	US
Kind code	B2
Filing date	Jul 16, 2014
Priority date	Jul 17, 2013
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

A high-accuracy OLED touch display panel structure of narrow border includes an upper substrate, a lower substrate, an OLED layer configured between the upper and lower substrates, a sensing electrode layer, a thin film transistor layer, a cathode layer, and an anode layer. The sensing electrode layer has a plurality of first conductor line units. The thin film transistor layer includes a plurality of gate lines, a plurality of source lines, and a plurality of second conductor line units. The plurality of first conductor line units and the plurality of second conductor line units form a sensing touch pattern structure for sensing an approaching external object. The plurality of first conductor line units and the plurality of second conductor line units are disposed corresponding to positions of the plurality of gate lines and the plurality of source lines.

First claim

What is claimed is:

1. A high-accuracy OLED touch display panel structure of narrow border, comprising:
an upper substrate;
a lower substrate parallel to the upper substrate;
an OLED layer configured between the upper substrate and the lower substrate;
a sensing electrode layer disposed at one side of the lower substrate facing the OLED layer, the sensing electrode layer having M first conductor line units and N connection lines arranged in a first direction for sensing an approaching external object, where M and N are each a positive integer;
a thin film transistor layer disposed at one side of the sensing electrode layer facing the OLED layer, the thin film transistor layer including a plurality of gate lines, a plurality of source lines, and N second conductor line units arranged in a second direction for driving a corresponding pixel driving circuit according to a display pixel signal and a display driving signal;
a cathode layer disposed at one side of the upper substrate facing the OLED layer; and
an anode layer disposed at one side of the thin film transistor layer facing the OLED layer, the anode layer including a plurality of anode pixel electrodes, each anode pixel electrode being connected to a source or drain of a corresponding pixel driving transistor,
wherein each second conductor line unit makes use of a corresponding i-th connection line to be extended to one edge of the panel structure of narrow border, where i is a positive integer and 1≦i≦N, the N second conductor line units, the M first conductor line units, and the N connection lines are disposed corresponding to positions of the plurality of gate lines and source lines.

2. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 1 , wherein each conductor line units is extended to the same edge of the panel structure of narrow border through a corresponding metal wire for being further connected to a flexible circuit board.

3. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 2 , wherein the N connection lines are made of conductive metal material.

4. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 3 , wherein each of the M first conductor line units is composed of plural metal sensing lines, and each of the N second conductor line units is composed of plural metal sensing lines.

5. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 4 , wherein the plural metal sensing lines of each of the M first conductor line units form a quadrilateral region, and the plural metal sensing lines of each of the N second conductor line units form a quadrilateral region, such that the metal sensing lines in each quadrilateral region are electrically connected together.

6. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 5 , wherein the first direction is vertical with the second direction.

7. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 6 , wherein each of the N connection lines is disposed between two first conductor line units.

8. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 7 , wherein the quadrilateral region has a shape of rectangle.

9. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 8 , wherein the metal sensing lines in each quadrilateral region formed by the plural metal sensing lines of each of the M first conductor line units and the N second conductor line units are made of conductive metal material or alloy material.

10. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 9 , wherein the conductive metal material is selectively to be chromium, barium, aluminum, silver, copper, titanium, nickel, tantalum, cobalt, tungsten, magnesium, calcium, potassium, lithium, indium, or a mixture of LiF, MgF2 or Li2O.

11. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 1 , wherein the thin film transistor layer includes:
a gate line sub-layer having a plurality of gate lines and a plurality of wiring segments, the plurality of gate lines being arranged in the first direction and the plurality of wiring segments being arranged in the second direction, the plurality of wiring segments arranged in the second direction being separated by the plurality of gate lines; and
a source line sub-layer disposed at one side of the gate line sub-layer facing the OLED layer and having a plurality of source lines and a plurality of wiring segments, the plurality of source lines are arranged in the second direction and the plurality of wiring segments are arranged in the first direction, the plurality of wiring segments arranged in the first direction being separated by the plurality of source lines.

12. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 11 , wherein the plurality of wiring segments arranged in the second direction and the plurality of wiring segments arranged in the first direction are disposed corresponding to positions of the plurality of gate lines and the plurality of source lines.

13. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 12 , wherein each of the plurality of wiring segments arranged in the second direction has two ends respectively having a first extension part and a second extension part arranged in the first direction, and each of the plurality of wiring segments arranged in the first direction has two ends respectively having a first extension part and a second extension part arranged in the second direction, where the extension parts arranged in the first direction are partially overlapped with the extension parts arranged in the second direction.

14. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 13 , wherein the extension parts are partially overlapped and thus electrically connected thereby, so as to allow the plurality of wiring segments arranged in the second direction and the plurality of wiring segments arranged in the first direction to form the N second conductor line units of the thin film transistor layer.

15. The high-accuracy OLED touch display panel structure of narrow border as claimed in claim 1 , wherein the OLED layer includes a hole transporting layer, an emitting layer, and an electron transporting layer.

Assignees

• Superc Touch Corp

Inventors

• Lee Hsiang-Yu

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H01L27/3244

  Electricity · mapped topic

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H01L27/323

  Electricity · mapped topic

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title