# US 2014/0197017 A1 · Touch panel structure and fabrication method thereof

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- Number: US 2014/0197017 A1
- Document ID: US20140197017A1
- Status: Published application
- Kind: A1
- Application number: 13/742,364
- Filed: 2013-01-16
- Published: 2014-07-17
- Earliest claimed: 2013-01-16
- Assignees: Wintek Corporation; Wintek (China) Technology Ltd.
- Applicants: Wintek (China) Technology Ltd.; Wintek Corporation
- Inventors: Chih-Hsien Lien; Peng-Chih Yu; Su-Ming Lin; Ping-Wen Huang
- Web page: https://patentgrep.com/patent/US20140197017A1

## CPC

- G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F 2203/04809: Textured surface identifying touch areas, e.g. overlay structure for a virtual keyboard
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A touch panel structure and a fabrication method thereof. The touch panel structure includes a substrate, a decoration layer, a touch unit and at least one first ink layer. The decoration layer and the touch unit are disposed on a side of the substrate, wherein the decoration layer is sandwiched between the touch unit and the substrate. The decoration layer includes a display region and at least one pattern disposition region, and the touch unit includes a transparent sensing unit extending over the pattern disposition region. The first ink layer is disposed on the touch unit and includes at least one pattern. The first ink layer corresponds to the pattern disposition region. The touch panel structure and related fabrication method have low cost and low productive hours.

## Claims

### Claim 1

A touch panel structure, comprising:
a substrate, made of a transparent material;
a decoration layer, disposed on a side of the substrate, comprising at least one pattern disposition region and a display region and made of an opaque material;
a touch unit, disposed on a side of the substrate and comprising a transparent sensing unit, wherein the decoration layer is sandwiched between the touch unit and the substrate, and the transparent sensing unit extends over the pattern disposition region; and
at least one first ink layer, disposed on the touch unit, comprising at least one pattern and corresponding to the pattern disposition region.

### Claim 2 (depends on 1)

The touch panel structure of claim 1, further comprising a second ink layer stacked on the first ink layer and corresponding to the pattern.

### Claim 3 (depends on 2)

The touch panel structure of claim 2, wherein a color of the second ink layer is different from a color of the first ink layer.

### Claim 4 (depends on 1)

The touch panel structure of claim 1, further comprising a buffer isolation layer and a protecting isolation layer, wherein the buffer isolation layer is disposed between the substrate and the touch unit, the protecting isolation layer is disposed on a side of the touch unit opposite to the decoration layer, and the buffer isolation layer and the protecting isolation layer are made of a transparent material respectively.

### Claim 5 (depends on 1)

The touch panel structure of claim 1, wherein a color of the first ink layer is identical to a color of the decoration layer.

### Claim 6 (depends on 1)

The touch panel structure of claim 1, wherein the touch unit further comprises a plurality of wirings corresponding to the decoration layer.

### Claim 7 (depends on 1)

The touch panel structure of claim 1, wherein the pattern comprises text and symbol.

### Claim 8 (depends on 1)

The touch panel structure of claim 1, wherein the at least one pattern comprises a first area, the at least one pattern disposition region comprises a second area, and the first area is smaller than the corresponding second area.

### Claim 9

A fabrication method of a touch panel structure, comprising :
disposing an opaque decoration layer on a side of a substrate made of a transparent material to define a display region and at least one pattern disposition region;
disposing a touch unit on a side of the substrate, wherein the decoration layer is sandwiched between the touch unit and the substrate, and the touch unit comprises a transparent sensing unit extending over the pattern disposition region; and
disposing at least one first ink layer on the touch unit, wherein the first ink layer comprises at least one pattern and corresponds to the pattern disposition region.

### Claim 10 (depends on 9)

The fabrication method of the touch panel structure of claim 9, further comprising stacking a second ink layer on the first ink layer after the step of disposing the first ink layer, wherein the second ink layer corresponds to the pattern.

### Claim 11 (depends on 9)

The fabrication method of the touch panel structure of claim 9, further comprising disposing a transparent buffer isolation layer between the substrate and the touch unit, and disposing a transparent protecting isolation layer on a side of the touch unit opposite to the decoration layer.