Touch screen panel and fabrication method thereof
AssigneeSamsung Display Co., Ltd.
InventorsKi-Hyun Cho, Sunhaeng Cho, Kyungseop Kim, Jaeneung Kim, CheolKyu Kim, Sungkyun Park
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Abstract
A touch screen panel includes a touch substrate, and a sensing electrode on the touch substrate, the sensing electrode recognizing a touch of a user and having a first sensing insulation layer on the touch substrate, the first sensing insulation layer having a first refractive index, a second sensing insulation layer on the first sensing insulation layer, the second sensing insulation layer having a second refractive index lower than the first refractive index, and the second sensing insulation layer including metal, and a sensing transparent conductive layer on the second sensing insulation layer.
Claims20
A touch screen panel, comprising:
- a touch substrate;
- a substrate insulation layer formed on the touch substrate;
- and a plurality of sensing electrodes formed on the touch substrate,
- the plurality of sensing electrodes recognizing a touch of a user,
- wherein the sensing electrode includes:
- a first sensing insulation layer formed on the touch substrate, the first sensing insulation layer having a first refractive index,
- a second sensing insulation layer formed on the first sensing insulation layer,
- the second sensing insulation layer having a second refractive index lower than the first refractive index, and the second sensing insulation layer including metal particles of nanowires embedded within, the second sensing insulation layer covering the first sensing insulation layer, wherein the substrate insulation layer is exposed from the second sensing insulation layer, and a sensing transparent conductive layer formed on the second sensing insulation layer.
A method of fabricating a touch screen panel, the method comprising:
- forming a first insulation layer having a first refractive index on a touch substrate;
- forming a second insulation layer having a second refractive index lower than the first refractive index on the first insulation layer, the second insulation layer including metal particles of nanowires embedded within;
- forming a transparent conductive layer on the second insulation layer;
- and
- forming a plurality of sensing electrodes by patterning the first insulation layer, the second insulation layer, and the transparent conductive layer,
- wherein forming the plurality of sensing electrodes includes etching the first insulation layer to form a first sensing insulation layer included in the sensing electrode and a substrate insulation layer connected to the first sensing insulation layer on the touch substrate, and
- wherein a thickness of the substrate insulation layer and a thickness of first sensing insulation layer are different.
Dependencies are inferred from the claim text.