Touch screen panel

Patent metadata

Field	Value
Publication number	US-9239654-B2
Application number	US-201213584879-A
Country	US
Kind code	B2
Filing date	Aug 14, 2012
Priority date	Apr 19, 2012
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

A touch screen panel includes a plurality of pixels on a substrate, a sealing thin film on the substrate, and a plurality of sensing electrodes on the sealing thin film, each of the sensing electrodes having a mesh structure, the mesh structures of the sensing electrodes and the pixels overlapping different portions of the substrate.

First claim

What is claimed is:

1. A touch screen panel, comprising:
a plurality of pixels on a substrate;
a sealing thin film on the substrate; and
a plurality of sensing electrodes on the sealing thin film, the sensing electrodes including an opaque metal, each of the sensing electrodes having a mesh structure including a plurality of intertwined metal lines defining a plurality of openings, each opening exposing at least one pixel, and the mesh structures of the sensing electrodes and the pixels overlapping different portions of the substrate, wherein:
the sensing electrodes include:
first sensing electrodes extended in a first direction; and
second sensing electrodes extended in a second direction intersecting with the first direction,

the first sensing electrodes and the second sensing electrodes are formed on the sealing thin film, an insulating film being positioned between the first sensing electrodes and the second sensing electrodes at least in an intersection region between the first sensing electrodes and the second sensing electrodes,
the first sensing electrodes include a plurality of first sensing cells arranged in the first direction, first connection patterns connecting the first sensing cells to each other, and a first auxiliary cell connected to the first connection pattern,
the second sensing electrodes include a plurality of second sensing cells arranged in the second direction, second connection patterns connecting the second sensing cells to each other, and a second auxiliary cell connected to the second connection pattern, and
each of the first auxiliary cell and the second auxiliary cell has a mesh structure including a plurality of intertwined metal lines defining a plurality of openings.

2. The touch screen panel as claimed in claim 1 , wherein each of the metal lines has a width that equals an inter-pixel distance or less.

3. The touch screen panel as claimed in claim 1 , wherein each opening exposes three pixels corresponding to a red pixel, a green pixel, and a blue pixel.

4. The touch screen panel as claimed in claim 1 , further comprising:
a first position detecting line connected to one end of the first sensing electrode; and
a second position detecting line connected to one end of the second sensing electrode.

5. The touch screen panel as claimed in claim 4 , wherein the first position detecting line and the second position detecting line include a same material as the first sensing electrodes and the second sensing electrodes, respectively.

6. The touch screen panel as claimed in claim 1 , wherein the sensing electrodes are on a surface of the sealing thin film facing away from the substrate.

7. A touch screen panel, comprising:
a plurality of pixels on a substrate;
a sealing thin film on the substrate; and
a plurality of sensing electrodes on the sealing thin film, the sensing electrodes including an opaque metal, each of the sensing electrodes having a mesh structure including a plurality of intertwined metal lines defining a plurality of openings, each opening exposing at least one pixel, and the mesh structures of the sensing electrodes and the pixels overlapping different portions of the substrate,
wherein the sensing electrodes include:
first sensing electrodes extended in a first direction; and
second sensing electrodes extended in a second direction intersecting with the first direction,

wherein the first sensing electrodes and the second sensing electrodes are on different layers, the first sensing electrodes being on the sealing thin film, and an insulating layer being positioned between the first sensing electrodes and the second sensing electrodes,
wherein each of the metal lines has a width that equals an inter-pixel distance or less,
wherein the first sensing electrodes include a plurality of first sensing cells arranged in the first direction, first connection patterns connecting the first sensing cells to each other, and a first auxiliary cell connected to the first connection pattern,
wherein the second sensing electrodes include a plurality of second sensing cells arranged in the second direction, second connection patterns connecting the second sensing cells to each other, and a second auxiliary cell connected to the second connection pattern, and
wherein each of the first auxiliary cell and the second auxiliary cell has a mesh structure including a plurality of intertwined metal lines defining a plurality of openings.

8. The touch screen panel as claimed in claim 7 , wherein the first sensing cells and the second sensing cells have a diamond shape.

9. The touch screen panel as claimed in claim 7 , wherein the first auxiliary cell is on a central portion of the first connection pattern, and the second auxiliary cell is on a central portion of the second connection pattern.

10. The touch screen panel as claimed in claim 9 , wherein the first auxiliary cell extends toward a second sensing cell adjacent thereto, and the second auxiliary cell extends toward a first sensing cell adjacent thereto.

11. The touch screen panel as claimed in claim 7 , wherein the opening in each of the first auxiliary cell and the second auxiliary cell exposes at least one pixel.

12. The touch screen panel as claimed in claim 7 , wherein the first connection pattern and the second connection pattern intersect each other, an insulating film being interposed therebetween.

Assignees

• Jang Hyoung-Wook
• Samsung Display Co Ltd

Inventors

• Jang Hyoung-Wook

Classifications

• G06F2203/04103

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

• B32B33/00

  Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class · 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

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F3/047

  using sets of wires, e.g. crossed wires · CPC title