TRANSPARENT TOUCH PANEL CAPABLE OF BEING ARRANGED BEFORE DISPLAY OF ELECTRONIC DEVICE

• US 20110012841A1
• Filed: 07/20/2009
• Published: 01/20/2011
• Est. Priority Date: 07/20/2009
• Status: Abandoned Application

• Current Assignee: Teh-Zheng Lin
• Original Assignee: Teh-Zheng Lin
• Inventors: Lin, Teh-Zheng
• Application Number:
  US12/506,249
• Publication Number:
  US 20110012841A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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

An assembly of a touch panel includes a transparent substrate, a color frame formed on edges of the substrate, and at least one touch sensing unit arranged insulated on the substrate. Signal wires formed on edges of the touch sensing unit are located below the color frame. The color frame is a thin film with a thickness below 5 μm. The assembly is thus simplified and thinner so that the cost is lowered and the product yield is raised. Also, an optical characteristic and a thickness of the product is improved and reduced. A surface of the touch sensing unit further has at least one transparent isolating layer or shielding layer, and at least one light regulating layer or functional film is arranged to a surface of the substrate.

Claims

1. An assembly of touch panel comprising:

a substrate being a physical transparent thin plate;

a color frame formed to a peripheral of a surface of the substrate;

the color frame being an opaque or nearly opaque thin film;

at least one touch sensing unit arranged to a surface of the substrate;

signal wires on edges of the touch sensing unit being arranged below the color frame;

sensing signals being generated by touching the touch sensing unit, then being transmitted by the signal wires arranged on the edges.

2. The assembly of touch panel as claimed in claim 1, wherein the substrate is a thin plate made of one of glass, polycarbonate (PC), polyester (PET), polymethyl methacrylate (PMMA), or Cyclo-Olefin Copolymers (COC).

3. The assembly of touch panel as claimed in claim 1, wherein the substrate is one of a plane or non-plane thin plate.

4. The assembly of touch panel as claimed in claim 1, wherein the color frame is made of one of ink, color photo resistance, organic material or inorganic material.

5. The assembly of touch panel as claimed in claim 1, wherein the color frame is a thin film with a thickness below 5 μ

m.

6. The assembly of touch panel as claimed in claim 1, wherein the touch sensing unit is one or a combination of a capacitive touch sensing unit, resistive touch sensing unit or electromagnetic touch sensing unit.

7. The assembly of touch panel as claimed in claim 1, wherein a surface of the substrate has a light regulating layer which is one or stacking films of a polarized thin film, phase shift thin film, and optical isotropic film.

8. The assembly of touch panel as claimed in claim 1, wherein a functional film is arranged on top of the surface of the substrate;

the functional film is one of a nebulizing film or a hard coating.

9. The assembly of touch panel as claimed in claim 1, wherein a transparent isolating layer is arranged to the surface of the touch sensing unit.

10. The assembly of touch panel as claimed in claim 9, wherein the isolating layer is an insulated layer.

11. An assembly of touch panel as claimed in claim 9, wherein a transparent shielding layer is arranged to an outer surface of the isolating layer to block noises.