Touch-sensing display panel and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9001281-B2
Application number	US-201213658826-A
Country	US
Kind code	B2
Filing date	Oct 24, 2012
Priority date	Mar 4, 2010
Publication date	Apr 7, 2015
Grant date	Apr 7, 2015

Abstract

A touch-sensing display panel including a front substrate, scan lines, data lines, pixel structures, photo-sensors, readout devices, a rear substrate and a display medium is provided. The front substrate has an inner surface. The scan lines and the data lines are on the inner surface of the front substrate and intersected to each other. The pixel structures are disposed on the inner surface of the front substrate, and each pixel structure is electrically connected to one of the scan lines and one of the data lines correspondingly. The photo-sensors are disposed on the inner surface of the front substrate. Each readout device is electrically connected to one of the photo-sensor correspondingly. The rear substrate is disposed opposite to the front substrate. The display medium is sealed between the front substrate and the rear substrate.

First claim

What is claimed is:

1. A touch-sensing display panel, comprising:
a front substrate having an inner surface and an outer surface opposite to the inner surface;
a plurality of scan lines disposed on the inner surface of the front substrate;
a plurality of data lines disposed on the inner surface of the front substrate and intersected with the scan lines;
a plurality of pixel structures, disposed on the inner surface of the front substrate, each of the pixel structures being electrically connected to one of the scan lines and one of the data lines correspondingly, and each of the pixel structures comprising:
a switch device electrically connected to one of the scan lines and one of the data lines correspondingly;
a pixel electrode electrically connected to the switch device; and
a transparent storage capacitance electrode layer disposed on the inner surface of the front substrate and sandwiched between the pixel electrode and the front substrate;

a plurality of photo-sensors disposed on the inner surface of the front substrate, each of the photo-sensors comprising:
a transparent lower electrode disposed on the inner surface of the front substrate, wherein the transparent lower electrode is directly in contact with the front substrate;
a photo-sensitive silicon-rich dielectric layer disposed on the transparent lower electrode; and
an upper electrode disposed on the photo-sensitive silicon-rich dielectric layer;

a plurality of readout devices, each of the readout devices being electrically connected to one of the photo-sensors correspondingly;
a rear substrate disposed opposite to the front substrate; and
a display medium sealed between the front substrate and the rear substrate, wherein the photo-sensors are disposed between the front substrate and the display medium, and
wherein the transparent storage capacitance electrode layer of the pixel structure and the transparent lower electrode of the photo-sensor are made of a same layer.

2. The touch-sensing display panel as claimed in claim 1 , wherein the upper electrode of the photo-sensor is a metal electrode.

3. The touch-sensing display panel as claimed in claim 1 , wherein the upper electrode of the photo-sensor is electrically connected to the readout device directly.

4. The touch-sensing display panel as claimed in claim 1 , wherein the upper electrode of the photo-sensor is a transparent electrode.

5. The touch-sensing display panel as claimed in claim 1 , wherein the upper electrode of the photo-sensor is electrically connected to the readout device through a contact hole.

6. The touch-sensing display panel as claimed in claim 1 , wherein the photo-sensitive silicon-rich dielectric layer of the photo-sensor comprises a silicon-rich silicon oxide layer, a silicon-rich silicon nitride layer, a silicon-rich silicon oxynitride layer, a silicon-rich silicon carbide layer, a silicon-rich oxycarbide layer, a hydrogenized silicon-rich silicon oxide layer, a hydrogenized silicon-rich silicon nitride layer, a hydrogenized silicon-rich silicon carbide layer, or a combination thereof.

7. The touch-sensing display panel as claimed in claim 1 , further comprising a plurality of sensing signal readout lines, each of the sensing signal readout lines being electrically connected to one of the readout devices correspondingly.

8. The touch-sensing display panel as claimed in claim 1 , further comprising a plurality of sensing signal-input lines, each of the sensing signal-input lines being electrically connected to the transparent lower electrode of one of the photo-sensors correspondingly.

9. A touch-sensing display panel, comprising:
a front substrate having an inner surface and an outer surface opposite to the inner surface;
a scan line disposed on the inner surface of the front substrate;
a data line disposed on the inner surface of the front substrate and intersected with the scan line;
a switch device electrically connected to the scan line and the data line correspondingly;
a pixel electrode electrically connected to the switch device;
a transparent storage capacitance electrode layer disposed on the inner surface of the front substrate and sandwiched between the pixel electrode and the front substrate;
a transparent lower electrode disposed on the inner surface of the front substrate, wherein the transparent lower electrode is directly in contact with the front substrate;
a photo-sensitive silicon-rich dielectric layer disposed on the transparent lower electrode;
an upper electrode disposed on the photo-sensitive silicon-rich dielectric layer;
a readout device electrically connected to one of the transparent lower electrode and the upper electrode;
a rear substrate disposed opposite to the front substrate; and
a display medium sealed between the front substrate and the rear substrate, and
wherein the transparent storage capacitance electrode layer and the transparent lower electrode are made of a same layer.

10. The touch-sensing display panel as claimed in claim 9 , wherein the upper electrode is a metal electrode.

11. The touch-sensing display panel as claimed in claim 9 , wherein the upper electrode is electrically connected to the readout device directly.

12. The touch-sensing display panel as claimed in claim 9 , wherein the upper electrode is a transparent electrode.

13. The touch-sensing display panel as claimed in claim 9 , wherein the upper electrode is electrically connected to the readout device through a contact hole.

14. The touch-sensing display panel as claimed in claim 9 , wherein the photo-sensitive silicon-rich dielectric layer comprises a silicon-rich silicon oxide layer, a silicon-rich silicon nitride layer, a silicon-rich silicon oxynitride layer, a silicon-rich silicon carbide layer, a silicon-rich oxycarbide layer, a hydrogenized silicon-rich silicon oxide layer, a hydrogenized silicon-rich silicon nitride layer, a hydrogenized silicon-rich silicon carbide layer, or a combination thereof.

15. The touch-sensing display panel as claimed in claim 9 , further comprising a sensing signal readout line being electrically connected to the readout device.

16. The touch-sensing display panel as claimed in claim 9 , further comprising a sensing signal-input line being electrically connected to the transparent lower electrode.

Assignees

• Au Optronics Corp

Inventors

• Lin Hsiang-Lin
• Cho An-Thung
• Hu Chih-Jen
• Huang Wei-Ming

Classifications

• H01J9/24

  Manufacture or joining of vessels, leading-in conductors or bases · CPC title

• G02F1/135 Primary

  Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied {(G02F1/133348 takes precedence)} · CPC title

• G06F3/042

  by opto-electronic means · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title