US 2013/0270618 A1Published application

Touch panel and fabricating method thereof

AssigneeAu Optronics Corporation

InventorsChi-Wen Fan, Tien-Hao Chang, Zao-Shi Zheng, Chun Chang, Wei-Peng Weng, An-Thung Cho, Jiun-Jye Chang

Life of this patent

Estimating the term…

Loading patent…

Abstract

A touch panel and fabricating method thereof are provided. The patterned transparent conductive layer, disposed on the substrate, includes first electrodes. The photo-sensing layers are disposed on the first electrodes. The first patterned conductive layer includes gate electrodes, scan lines and second electrodes. The gate electrodes and the scan lines are disposed on the substrate. The second electrodes are disposed on the photo-sensing layers. The first electrodes, the photo-sensing layers and the second electrodes constitute photo-sensors. The second patterned conductive layer includes source electrodes and drain electrodes, wherein the gate electrodes, the channel layers, the source electrodes and the drain electrodes constitute read-out transistors and each of the read-out transistors is electrically connected to the corresponding photo-sensor respectively.

Claims17

Dependent claims

A touch panel, comprising:

a substrate;
a patterned transparent conductive layer disposed on the substrate, the patterned transparent conductive layer comprising a plurality of first electrodes;
a plurality of photo-sensing layers disposed on the first electrodes;
a first patterned conductive layer comprising a plurality of gate electrodes, a plurality of scan lines connected to the gate electrodes and a plurality of second electrodes, wherein the gate electrodes and the scan lines are located on the substrate, the second electrodes are located on the photo-sensing layers, and the first electrodes, the photo-sensing layers and the second electrodes constitute a plurality of photo-sensors;
a first dielectric layer disposed on the substrate to cover the gate electrodes, the scan lines and the photo-sensors;
a plurality of channel layers disposed on the first dielectric layer and located above the gate electrodes;
and
a second patterned conductive layer comprising a plurality of source electrodes and a plurality of drain electrodes, wherein the gate electrodes, the channel layers, the source electrodes and the drain electrodes constitute a plurality of read-out transistors, and each of the read-out transistors is electrically connected to the corresponding photo-sensor, respectively.

5 more elements

A fabricating method of a touch panel, comprising:

forming a patterned transparent conductive layer on a substrate, wherein the patterned transparent conductive layer comprises a plurality of first electrodes;
forming a plurality of photo-sensing layers on the first electrodes;
forming a first patterned conductive layer, wherein the first patterned conductive layer comprises a plurality of gate electrodes, a plurality of scan lines connected to the gate electrodes and a plurality of second electrodes, the gate electrodes and the scan lines are located on the substrate, the second electrodes are located on the photo-sensing layers, and the first electrodes, the photo-sensing layers and the second electrodes constitute a plurality of photo-sensors;
forming a first dielectric layer on the substrate to cover the gate electrodes, the scan lines and the photo-sensors;
forming a plurality of channel layers on the first dielectric layer, wherein the channel layers are located above the gate electrodes;
and
forming a second patterned conductive layer, wherein the second patterned conductive layer comprises a plurality of source electrodes and a plurality of drain electrodes, the gate electrodes, the channel layers, the source electrodes and the drain electrodes constitute a plurality of read-out transistors, and each of the read-out transistors is electrically connected to the corresponding photo-sensor, respectively.

4 more elements

Dependencies are inferred from the claim text.