# US 9,519,368 B2 · Touch screen panel and method of manufacturing the same

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- Number: US 9,519,368 B2
- Document ID: US9519368B2
- Status: Granted
- Kind: B2
- Application number: 14/637,339
- Filed: 2015-03-03
- Published: 2015-06-25
- Granted: 2016-12-13
- Earliest claimed: 2009-07-23
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Sang-Youn Han; Woong-Kwon Kim; Dae-Cheol Kim; Ho-Jun Lee; Kyung-Ho Park
- Web page: https://patentgrep.com/patent/US9519368B2

## CPC

- G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F 3/042: by opto-electronic means
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

Provided are a touch screen panel and a method of manufacturing the same. The touch screen panel comprises: a substrate; a first reflection-preventing film formed on the substrate; a first gate wiring formed on the first reflection-preventing film; and a sensing wiring formed above the first gate wiring to be insulated from the first gate wiring and to cross the first gate wiring.

## Claims

### Claim 1

A touch screen panel, comprising:
a substrate;
a first reflection-preventing film disposed on the substrate;
a first gate wiring disposed on the first reflection-preventing film;
a sensing wiring disposed on the first gate wiring to be insulated from the first gate wiring and to cross the first gate wiring;
a second gate wiring disposed on the sensing wiring, the second gate wiring being insulated from and crossing the first gate wiring;
a semiconductor layer disposed between the first gate wiring and the sensing wiring; and
a light sensing semiconductor layer disposed between the substrate and the sensing wiring;
wherein:
the first reflection-preventing film is disposed between the substrate and the first gate wiring, between the substrate and the sensing wiring, and between the substrate and the second gate wiring;
the first reflection-preventing film does not overlap at least a portion of the light sensing semiconductor layer;
the semiconductor layer overlaps the first gate wiring, and
the light sensing semiconductor layer overlaps the second gate wiring.

### Claim 2 (depends on 1)

The touch screen panel of claim 1, wherein the first reflection-preventing film comprises an inorganic black matrix that comprises at least one of chromium and chromium oxide.

### Claim 3 (depends on 1)

The touch screen panel of claim 1, wherein the second gate wiring is configured to apply a bias voltage to an optical sensor comprising the light sensing semiconductor layer.