METHOD FOR FABRICATING A TOUCH PANEL

• US 20120159780A1
• Filed: 12/21/2011
• Published: 06/28/2012
• Est. Priority Date: 12/22/2010
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: Chi Mei Innolux Corporation (InnoLux Corporation)
• Inventors: CHAN, Kai-Chieh, CHEN, Hsin-Li, CHEN, Hung-Yu, YANG, Chiu-Lien, PANG, Jia-Pang, TING, Chin-Lung
• Application Number:
  US13/333,531
• Publication Number:
  US 20120159780A1
• Time in Patent Office: Days
• US Class Current: 29/832
• 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 method for fabricating the touch panel, including: providing a display panel, and the display panel includes a first substrate and a second substrate opposite to the first substrate; thinning the display panel to form a thinned display panel; and forming a touch panel on the outer surface of the thinned display panel.

Claims

1. A method for fabricating a touch panel, comprising:

providing a display panel, wherein the display panel comprises a first substrate and a second substrate opposite to the first substrate;

thinning the display panel to form a thinned display panel; and

forming a touch panel on an outer surface of the thinned display panel.

2. The method for fabricating the touch panel as claimed in claim 1, wherein thinning the display panel comprises thinning the first substrate or the second substrate.

3. The method for fabricating the touch panel as claimed in claim 1, wherein thinning the display panel comprises thinning the first substrate and the second substrate.

4. The method for fabricating the touch panel as claimed in claim 1, wherein the method for fabricating the display panel comprises:

providing the first substrate and the second substrate;

forming a liquid crystal layer on the first substrate or the second substrate by a one drop filling method;

assembling the first substrate and the second substrate to make the liquid crystal layer formed between the first substrate and the second substrate.

5. The method for fabricating the touch panel as claimed in claim 1, after forming the touch sensor, further comprising:

injecting a liquid crystal layer between the first substrate and the second substrate.

6. The method for fabricating the touch panel as claimed in claim 1, before forming the touch sensor, further comprising

injecting a liquid crystal layer between the first substrate and the second substrate.

7. The method for fabricating the touch panel as claimed in claim 1, further comprising:

forming a color filter device on a first surface of the second substrate close to the first substrate; and

forming a touch sensor on a second surface of the second substrate away from the first substrate.

8. The method for fabricating the touch panel as claimed in claim 7, wherein forming the touch panel comprises:

directly forming a transparent conducting layer on the second surface of the second substrate away from the first substrate by a deposition process; and

patterning the transparent conducting layer to form a patterned transparent conducting layer.

9. The method for fabricating the touch panel as claimed in claim 8, after forming the patterned transparent conducting layer, further comprising:

annealing the patterned transparent conducting layer.

10. The method for fabricating the touch panel as claimed in claim 8, wherein the deposition process comprises chemical vapor deposition or physical vapor deposition.

11. The method for fabricating the touch panel as claimed in claim 8, 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).

12. The method for fabricating the touch panel as claimed in claim 7, wherein forming the touch panel comprises:

adhering the touch sensor on the second surface of the second substrate away from the first substrate by a adhesive layer.

13. The method for fabricating the touch panel as claimed in claim 1, further comprising:

forming a thin film transistor device on a first surface of the second substrate close to the first substrate; and

forming a touch sensor on a second surface of the second substrate away from the first substrate.

14. The method for fabricating the touch panel as claimed in claim 1, further comprising:

forming a polarizer on the touch panel.