Touch screen panel, flat panel display apparatus integrated with the touch screen panel, and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9582124-B2
Application number	US-201314064728-A
Country	US
Kind code	B2
Filing date	Oct 28, 2013
Priority date	Jul 25, 2013
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

A touch screen panel, a flat panel display apparatus integrated touch screen panel, and a method of manufacturing the same. The touch screen panel includes: first touch detection patterns extending in a first direction and spaced apart from each other in a second direction perpendicular to the first direction; and second touch detection patterns extending in the second direction and spaced apart from each other in the first direction. Each of the first touch detection patterns includes a first transparent conductive pattern and a first edge conductive pattern surrounding an edge of the first transparent conductive pattern, and each of the second touch detection patterns includes a second transparent conductive pattern and a second edge conductive pattern surrounding an edge of the second transparent conductive pattern.

First claim

What is claimed is:

1. A touch screen panel comprising:
first touch detection patterns extending in a first direction and spaced apart from each other in a second direction perpendicular to the first direction; and
second touch detection patterns extending in the second direction and spaced apart from each other in the first direction,
wherein:
each of the first touch detection patterns comprises a first transparent conductive pattern and a first edge conductive pattern surrounding the first transparent conductive pattern;
each of the second touch detection patterns comprises a second transparent conductive pattern and a second edge conductive pattern surrounding the second transparent conductive pattern,
the first transparent conductive pattern and the first edge conductive pattern are formed through a low temperature process, and the second transparent conductive pattern and the second edge conductive pattern are formed through a low temperature process, and
the first touch detection patterns and the second touch detection patterns are configured such that a joule heat generation voltage is applied to the first edge conductive pattern and the second edge conductive pattern such that joule heat is generated to lower resistivities of at least the first edge conductive pattern and the second edge conductive pattern, and
the resistivities of the first edge conductive pattern and the second edge conductive pattern are lower than that of the first transparent conductive pattern and the second transparent conductive pattern.

2. The touch screen panel of claim 1 , wherein a sheet resistance of the edges of the first transparent conductive pattern and the second transparent conductive pattern is lower than that of centers thereof.

3. The touch screen panel of claim 1 , wherein the first edge conductive pattern and the second edge conductive pattern directly contact at least a part of an upper portion or a lower portion of each of the first transparent conductive pattern and the second transparent conductive pattern.

4. The touch screen panel of claim 1 , wherein:
the first touch detection patterns are disposed on a first layer, and the second touch detection patterns are disposed on a second layer that is different from the first layer; and
the first touch detection patterns and the second touch detection patterns are spaced apart from each other and cross each other.

5. The touch screen panel of claim 1 , wherein:
the first transparent conductive pattern comprises first detection cells that are spaced apart from each other in the first direction;
the first edge conductive pattern comprises:
edge portions surrounding the first detection cells; and connection portions connecting the edge portions in the first direction; and
the edge portions and the connection portions are alternately and continuously connected to each other in the first direction.

6. The touch screen panel of claim 5 , wherein:
the second transparent conductive pattern comprises second detection cells that are spaced apart from each other in the second direction;
the second edge conductive pattern comprises edge patterns surrounding the second detection cells; and
the touch screen panel further comprises connection patterns connecting the edge patterns and extending in the second direction.

7. The touch screen panel of claim 6 , wherein the first transparent conductive pattern is disposed on the same layer as the second transparent conductive pattern, and the first edge conductive pattern is disposed on the same layer as the second edge conductive pattern.

8. The touch screen panel of claim 6 , wherein the connection patterns are spaced apart from and cross the connection portions and overlap the connection portions.

9. The touch screen panel of claim 1 , wherein the first touch detection patterns and the second touch detection patterns further comprise pads that are connected to ends of the first edge conductive pattern and the second edge conductive pattern, the pads being configured to accept the applied joule heat generation voltage.

10. The touch screen panel of claim 9 , wherein the pads are integrally formed with the first edge conductive pattern and the second edge conductive pattern.

11. A flat panel display apparatus comprising:
a substrate extending in a first direction and a second direction perpendicular to the first direction;
a display unit disposed on the substrate and comprising pixels;
a sealing member disposed on the substrate and sealing the display unit; and
a first touch screen panel disposed on one of the substrate and the sealing member, the first touch screen panel comprising:
first touch detection patterns extending in a first direction and spaced apart from each other in a second direction perpendicular to the first direction; and
second touch detection patterns extending in the second direction and spaced apart from each other in the first direction,
wherein:
each of the first touch detection patterns comprises a first transparent conductive pattern and a first edge conductive pattern surrounding the first transparent conductive pattern;
each of the second touch detection patterns comprises a second transparent conductive pattern and a second edge conductive pattern surrounding the second transparent conductive pattern,
the first transparent conductive pattern and the first edge conductive pattern are formed through a low temperature process, and the second transparent conductive pattern and the second edge conductive pattern are formed through a low temperature process, and
the first touch detection patterns and the second touch detection patterns are configured such that a joule heat generation voltage is applied to the first edge conductive pattern and the second edge conductive pattern such that joule heat is generated to lower resistivities of at least the first edge conductive pattern and the second edge conductive pattern, and
the resistivities of the first edge conductive pattern and the second edge conductive pattern are lower than that of the first transparent conductive pattern and the second transparent conductive pattern.

12. The flat panel display apparatus of claim 11 , further comprising: a second touch screen panel disposed on another one of the substrate and the sealing member that does not have the first touch screen panel disposed thereon.

13. The flat panel display apparatus of claim 12 , wherein the flat panel display apparatus is a transparent display apparatus.

14. The flat panel display apparatus of claim 11 , wherein each of the pixels comprises:
a thin film transistor (TFT), a pixel electrode electrically connected to the TFT;
an organic emissive layer disposed on the pixel electrode; and
an opposite electrode disposed on the organic emissive layer.

15. The flat panel display apparatus of claim 14 , wherein:
the display unit comprises:
emissive regions in which the organic emissive layers are disposed; and
non-emissive regions in which the organic emissive layers are not disposed and in which the first and second edge conductive patterns are disposed.

16. The flat panel display apparatus of claim 11 , wherein the sealing member comprises a sealing substrate disposed to face the substrate and a sealant disposed between the substrate and the sealing substrate.

Assignees

• Samsung Display Co Ltd

Inventors

• Han Byung-Uk

Classifications

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• 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

• G06F2203/04112

  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 title

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title