Ornamental Frame of Touch Panel

• US 20120154990A1
• Filed: 12/21/2010
• Published: 06/21/2012
• Est. Priority Date: 12/21/2010
• Status: Active Grant

• Current Assignee: Luminous Optical Technology Co., Ltd.
• Original Assignee: Luminous Optical Technology Co., Ltd.
• Inventors: YANG, KAI-TI
• Granted Patent: US 8,520,380 B2
• Time in Patent Office: Days
• US Class Current: 361/679.01
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0445 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
• CPC Class Codes: G09F 9/30 in which the desired character or characters are formed by combining individual elements panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00

Abstract

An ornamental frame of touch panel includes a first color frame layer provided at an outer periphery portion of a bottom surface of the upper panel of the touch panel, and a second color frame layer provided at an inner periphery portion of the first color frame layer and extended from the surface of the first color frame layer to overlap with the bottom surface of the upper panel, wherein the ornamental frame can just cover the signal leads extended along the edges of the touch sensor. The first color frame layer and the second color frame layer are non-transparent or nearly non-transparent film layers, wherein the first color frame layer is thicker than the second color frame layer.

Claims

1. An ornamental frame of touch panel comprising an upper panel, a lower panel and a touch sensor insulated disposed therebetween, wherein said touch sensor has signal leads extended along edges thereof for transmitting detected signals of said touch sensor to a signal processing circuit, wherein said ornamental frame comprises:

a first color frame layer provided at an outer periphery portion of a bottom surface of said upper panel; and

a second color frame layer provided at an inner periphery portion of said first color frame, wherein said second color frame layer is extended from the surface of said first color frame layer to overlap with said bottom surface of said upper panel, wherein said first and second color frame layers compose said ornamental frame to fittingly cover said signal leads disposed on said edges of said touch sensor.

2. The ornamental frame, as recited in claim 1, wherein said first color frame layer and said second color frame layer are non-transparent film layers.

3. The ornamental frame, as recited in claim 1, wherein said first color frame layer and said second color frame layer are nearly non-transparent film layers.

4. The ornamental frame, as recited in claim 1, wherein said first color frame layer is a printed color frame layer having a film layer thickness of more than 10 μ

m.

5. The ornamental frame, as recited in claim 1, wherein said second color frame layer is a photo-resistance color frame layer having a film layer thickness of less than 2 μ

m.

6. A touch panel, comprising:

an upper panel;

a lower panel;

a touch sensor, which is insulatedly disposed between said upper panel and said lower panel, having signal leads extended along edges of said touch sensor for transmitting detected signals of said touch sensor to a signal processing circuit; and

an ornamental frame, comprising

a first color frame layer provided at an outer periphery portion of a bottom surface of said upper panel; and

a second color frame layer provided at a portion adjacent to an inner periphery portion of said first color frame and extended overlappedly from said first color frame layer to said bottom surface of said upper panel, wherein said first and second color frame layers are composed to form said ornamental frame and adapted for covering said signal leads disposed at said edges of said touch sensor.

7. The touch panel, as recited in claim 6, wherein said first color frame layer is a printed color frame layer printed with black printing ink and has a coating thickness more than 10 μ

m.

8. The touch panel, as recited in claim 6, wherein said second color frame layer is a photo-resistance color frame layer utilizing black negative photoresist to form a coating thickness of less than 2 μ

m.

9. The touch panel, as recited in claim 7, wherein said second color frame layer is a photo-resistance color frame layer utilizing black negative photoresist to form a coating thickness of less than 2 μ

m.

10. The touch panel, as recited in claim 9, wherein said touch sensor comprises an upper capacitance sensor layer provided with a plurality of X-Traces and a lower capacitance sensor layer provided with a plurality of Y-Traces, wherein said signal leads are provided at peripheral edges of said upper and lower capacitance sensors, wherein end portions of said X-Traces and said Y-Traces are electrically connected to said signal leads respectively.

11. The touch panel, as recited in claim 10, wherein said upper capacitance sensor layer of said touch sensor is provided on a working portion area of said bottom surface of said upper panel with peripheral edge thereof overlapped on said photo-resistance color frame layer, wherein connection points of said signal leads are overlapped with said printed color frame layer and said photo-resistance color frame layer and then connected with said peripheral edge of said upper capacitance sensor layer.

12. The touch panel, as recited in claim 11, wherein said lower capacitance sensor layer of said touch sensor is provided on a working portion area of the top surface of said lower panel, and connection points of said signal leads are connected with said peripheral edge of said lower capacitance sensor layer.

13. The touch panel, as recited in claim 12, wherein said upper panel and said upper capacitance sensor layer thereon are overlapped with said lower panel and said lower capacitance sensor layer thereon with an insulating layer therebetween.

14. The touch panel, as recited in claim 13, wherein said upper panel, said upper capacitance sensor layer, said insulating layer, said lower capacitance sensor layer, and said lower panel are overlappedly stacked and integrated to form an integral panel body, wherein said ornamental frame.

15. The touch panel, as recited in claim 14, wherein said first color frame layer is a film printed onto portions nears said outer periphery portion and portions with holes or grooves of said lower panel.

16. The touch panel, as recited in claim 15, wherein said inner periphery edge of said printed color frame layer is coated with a thinner photo-resistance film color frame layer by means of a photo-resistance coating method.

17. The touch panel, as recited in claim 15, wherein said first color frame layer and said second color frame layer are non-transparent film layers.

18. The touch panel, as recited in claim 15, wherein said first color frame layer and said second color frame layer are nearly non-transparent film layers.

19. The touch panel, as recited in claim 15, wherein said first color frame layer is a printed color frame layer having a film layer thickness of more than 10 μ

m.

20. The touch panel, as recited in claim 15, wherein said second color frame layer is a photo-resistance color frame layer having a film layer thickness of less than 2 μ

m.