TOUCH PANEL

• US 20120162108A1
• Filed: 12/12/2011
• Published: 06/28/2012
• Est. Priority Date: 12/22/2010
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: CHAN, Kai-Chieh, CHEN, Hsin-Li, CHEN, Hung-Yu, YANG, Chiu-Lien, PANG, Jia-Pang, TING, Chin-Lung
• Application Number:
  US13/323,700
• Publication Number:
  US 20120162108A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G02F 1/133302 Rigid substrates, e.g. inorganic substrates
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/4913 Assembling to base an electrical component, e.g., capacitor, etc.
• CPC Class Codes: Y10T 29/49155 Manufacturing circuit on or in base

Abstract

The disclosure provides a touch panel which includes: a first substrate; a second substrate disposed oppositely to the first substrate, and the first substrate or the second substrate has a thickness smaller than or equal to 0.3 mm; a liquid crystal layer disposed between the first substrate and the second substrate; and a touch sensor directly formed on a surface of the second substrate away from the liquid crystal layer, wherein the touch sensor includes a patterned transparent conducting layer.

Claims

1. A touch panel, comprising:

a first substrate;

a second substrate disposed oppositely to the first substrate, wherein the first substrate or the second substrate has a thickness smaller than or equal to 0.3 mm;

a liquid crystal layer disposed between the first substrate and the second substrate; and

a touch sensor directly formed on a surface of the second substrate away from the liquid crystal layer, wherein the touch sensor comprises a patterned transparent conducting layer.

2. The touch panel as claimed in claim 1, wherein the first substrate has a thickness of about 0.15 mm-0.30 mm.

3. The touch panel as claimed in claim 1, wherein the second substrate has a thickness of about 0.15 mm-0.30 mm.

4. The touch panel as claimed in claim 1, wherein the first substrate or the second substrate individually has a thickness of about 0.15 mm-0.30 mm.

5. The touch panel as claimed in claim 1, wherein the patterned transparent conducting layer comprises indium tin oxide (ITO), indium zinc oxide (IZO), cadmium tin oxide (CTO), aluminum zinc oxide (AZO), indium tin zinc oxide (ITZO) zinc oxide, cadmium oxide (CdO), hafnium oxide (HfO), indium gallium zinc oxide (InGaZnO), indium gallium zinc magnesium oxide (InGaZnMgO), indium gallium magnesium oxide (InGaMgO) or indium gallium aluminum oxide (InGaAlO).

6. The touch panel as claimed in claim 1, wherein the touch panel further comprises a metal layer, a dielectric layer and a protection layer.

7. The touch panel as claimed in claim 1, wherein the patterned transparent conducting layer comprises independent matrix structures or intersection matrix structures.

8. The touch panel as claimed in claim 7, wherein the patterned transparent conducting layer comprising the intersection matrix structures are connected by a bridge patterned transparent conducting layer or a bridge metal layer.

9. The touch panel as claimed in claim 1, wherein the touch sensor is formed by a deposition process.

10. The touch panel as claimed in claim 9, wherein the deposition process comprises a chemical vapor deposition (CVD) process or physical vapor deposition (PVD) process.

11. The touch panel as claimed in claim 1, wherein the first substrate is a thin film transistor substrate, and the second substrate is a color filter substrate.

12. The touch panel as claimed in claim 11, further comprising a color filter and a black matrix formed between the second substrate and the liquid crystal layer.

13. The touch panel as claimed in claim 1, wherein the first substrate is a color filter substrate, and the second substrate is a thin film transistor substrate.

14. The touch panel as claimed in claim 1, further comprising:

a polarizer formed on the touch panel; and

a cover glass formed on the polarizer.

15. The touch panel as claimed in claim 1, wherein the touch panel is applied to in-plane switching (IPS LCD) or fringe field switching (FFS LCD).