US 2011/0214925 A1Published application

Touch Sensor Device

OwnerChao Kuo Hsiehinventor

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Abstract

A touch sensor device with increased transmittance, increased sensitivity and decreased thickness is disclosed. The touch sensor device includes a substrate. The substrate, from bottom to top, sequentially includes a bottom conductive layer, a bottom insulation layer, a top conductive layer, an electrode layer, a top insulation layer and a substrate material layer. The bottom conductive layer can shield external electromagnetic interference and act as a ground. The bottom insulation layer is provided with an insulation effect. The top conductive layer is used for sensing a touch operation to generate a sensor signal. The electrode layer includes a plurality of first electrode lines, a barrier layer and a plurality of second electrode lines. The top insulation layer is provided with an effect for preventing electrostatic discharge. The substrate material layer is used for protecting the touch sensor device.

Claims14

Dependent claims

A touch sensor device, comprising:

a substrate having an upper surface for receiving a touch operation, the substrate comprising:
a bottom conductive layer having a shielding effect for shielding external electromagnetic interference and acting as a ground;
a bottom insulation layer disposed on the bottom conductive layer and having an insulation effect;
a top conductive layer disposed on the bottom insulation layer for sensing the touch operation to generate a sensor signal;
an electrode layer disposed on the top conductive layer and including a plurality of first electrode lines, a barrier layer and a plurality of second electrode lines, wherein the first electrode lines and the second electrode lines are used for receiving the sensor signal to determine a position of the touch operation;
a top insulation layer disposed on the electrode layer and provided with an effect for preventing electrostatic discharge;
and
a substrate material layer disposed on the top insulation layer for protecting the touch sensor device.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/715,399Filed 2 Mar 2010
Published: 8 Sep 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

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 3/0443
By capacitive means: using a single layer of sensing electrodes
G06F 3/0445
By capacitive means: using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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