Display panel having touching circuit

• US 20070159561A1
• Filed: 01/10/2006
• Published: 07/12/2007
• Est. Priority Date: 01/10/2006
• Status: Abandoned Application

• Current Assignee: Trendon Touch Technology Corporation
• Original Assignee: Trendon Touch Technology Corporation
• Inventors: Chien, Shun-Ta
• Application Number:
  US11/328,244
• Publication Number:
  US 20070159561A1
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

The present invention is to provide a display panel comprising an upper polarizer; a lower polarizer; a lower glass substrate provided on the lower polarizer; an upper glass substrate provided below the upper polarizer; an upper transparent ITO layer provided under the upper glass substrate; a lower transparent ITO layer provided on the lower glass substrate; an intermediate liquid crystal layer sandwiched by the transparent ITO layers; and a touching circuit layer sandwiched by the upper polarizer and the upper glass substrate and disposed above the liquid crystal layer, enabling the touching circuit to be directly mounted in the display panel rather than assembling together after manufacturing.

Claims

1. A display panel comprising:

an upper polarizer;

a lower polarizer;

a lower glass substrate provided on the lower polarizer;

an upper glass substrate provided below the upper polarizer;

an upper transparent ITO layer provided under the upper glass substrate;

a lower transparent ITO layer provided on the lower glass substrate;

an intermediate liquid crystal layer sandwiched by the transparent ITO layers; and

a touching circuit layer sandwiched by the upper polarizer and the upper glass substrate and disposed above the liquid crystal layer.

2. The display panel of claim 1, wherein the touching circuit layer comprises a plurality of coating circuits formed on the upper glass substrate facing the upper polarizer.

3. The display panel of claim 1, wherein the touching circuit layer is provided above the liquid crystal layer and is sandwiched by the upper polarizer and the upper glass substrate.

4. The display panel of claim 1, wherein the touching circuit layer is provided below the liquid crystal layer and is sandwiched by the lower polarizer and the lower glass substrate.

5. A display panel comprising:

a top polarizer;

a bottom polarizer;

a lower glass substrate provided above the bottom polarizer;

an upper glass substrate provided below the top polarizer;

an upper transparent ITO layer provided under the upper glass substrate;

a lower transparent ITO layer provided on the lower glass substrate;

an intermediate liquid crystal layer sandwiched by the transparent ITO layers;

an upper touching circuit layer sandwiched by the top polarizer and the upper glass substrate; and

a lower touching circuit layer sandwiched by the bottom polarizer and the lower glass substrate;

wherein the upper and the lower touching circuit layers are spaced from top and bottom surfaces of the liquid crystal layer respectively.

6. The display panel of claim 5, wherein the upper touching circuit layer comprises a plurality of coating circuits formed on its top surface above the upper glass substrate facing the top polarizer.

7. The display panel of claim 5, wherein each of the upper and the lower touching circuit layers comprises a plurality of coating circuits formed on its top surface, the coating circuits of the upper touching circuit layer being disposed above the upper glass substrate facing the top polarizer and the coating circuits of the lower touching circuit layer being disposed below the lower glass substrate facing the bottom polarizer.

8. The display panel of claim 7, wherein an orientation of the coating circuits of the upper touching circuit layer is perpendicular to that of the coating circuits of the lower touching circuit layer.

9. The display panel of claim 8, wherein an orientation of the coating circuits of the upper touching circuit layer is the same as that of the coating circuits of the lower touching circuit layer.