US 2014/0368757 A1Published application

Touch panel

AssigneeWintek Corporation

InventorsHsuan-Yang CHEN, Yi-Hsuan HUANG, Tzung-Fu LAI

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Abstract

A touch panel includes a substrate, a buffer layer, an appearance decoration layer, a touch-sensing element, and a plurality of transmission lines. The buffer layer is formed on and in contact with the substrate, and the buffer layer and the substrate are formed from mutual different materials to have different surface adhesions. The appearance decoration layer is disposed on a periphery of the substrate, and the touch-sensing element is formed on and in contact with the buffer layer. The touch-sensing element includes a plurality of capacitive coupling pads, and at least one of the capacitive coupling pads covers a part of the appearance decoration layer. The transmission lines are disposed on the appearance decoration layer and electrically connected to the touch-sensing element.

Claims20

Dependent claims

A touch panel, comprising:

a substrate;
an appearance decoration layer disposed on a periphery of the substrate;
a touch-sensing element disposed on the substrate and comprising:
a plurality of first capacitive coupling units, wherein each of the first capacitive coupling units comprises multiple first pads and multiple first connection lines, the first pads are connected with each other by the first connection lines, and at least one of the first pads overlaps the appearance decoration layer;
a plurality of second capacitive coupling units spaced apart from the first capacitive coupling units, wherein the second capacitive coupling units and the first capacitive coupling units are oriented to cross over each other at crossover locations, each of the second capacitive coupling units comprises multiple second pads and multiple second connection lines, the second pads are connected with each other by the second connection lines, and at least one of the second pads overlaps the appearance decorative layer;
and
a plurality of insulators separate from each other, wherein the insulators are disposed in the crossover locations to separate the first capacitive coupling units and the second capacitive coupling units at each of the crossover locations;
a plurality of transmission lines disposed on the substrate, shielded by the appearance decoration layer, and electrically connected to the touch-sensing element;
and
a buffer layer formed on the substrate and at least interposed between the touch-sensing element and the substrate to change at least one mechanical property of a combination of the touch-sensing element and the substrate.

7 more elements

A touch panel, comprising:

a substrate;
a buffer layer formed on and in contact with the substrate, wherein the buffer layer comprises organic material;
an appearance decoration layer disposed on a periphery of the substrate;
a touch-sensing element formed on and in contact with the buffer layer, wherein the touch-sensing element comprises:
a plurality of first capacitive coupling units, wherein each of the first capacitive coupling units comprises multiple first pads and multiple first connection lines, the first pads are connected with each other by the first connection lines, and at least one of the first pads overlaps the appearance decoration layer;
a plurality of second capacitive coupling units spaced apart from the first capacitive coupling unit, wherein the second capacitive coupling unit and the first capacitive coupling unit are oriented to cross over each other at crossover locations, each of the second capacitive coupling unit comprises multiple second pads and multiple second connection lines, the second pads are connected with each other by the second connection lines, and at least one of the second pads overlaps the appearance decorative layer;
and
a plurality of insulators separate from each other, wherein the insulators are disposed in the crossover locations to separate the first capacitive coupling units and the second capacitive coupling units;
and
a plurality of transmission lines disposed on the appearance decoration layer and electrically connected to the touch-sensing element.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/305,664Filed 16 Jun 2014
Priority: TW 10212119214 Jun 2013
Published: 18 Dec 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

G06F 3/0443
By capacitive means: using a single layer of sensing electrodes
G06F 3/041
Arrangements for converting the position or the displacement of a member into a coded form: digitisers, e.g. for touch screens or touch pads,…
G06F 3/0446
By capacitive means: using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
H03K 17/9622
Capacitive touch switches: using a plurality of detectors, e.g. keyboard