TOUCH PANEL WITH ELECTRODE BRIDGING STRUCTURE

• US 20140285731A1
• Filed: 03/13/2014
• Published: 09/25/2014
• Est. Priority Date: 03/20/2013
• Status: Active Grant

• Current Assignee: Miracle Touch Technology Incorporated
• Original Assignee: Miracle Touch Technology Incorporated
• Inventors: LI, YU-JIE
• Granted Patent: US 9,310,910 B2
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

The invention relates to a touch panel with an electrode bridging structure. The touch panel includes an electroconductive substrate and an electroconductive film disposed on the electroconductive substrate. Surfaces of the electroconductive substrate have upper and lower electrodes. The invention is characterized in that at least two electroconductive bridging portions are disposed between the electroconductive substrate and the electroconductive film, and can electrically connect the electroconductive substrate to the electroconductive film. Thus, the upper and lower electrodes of the touch panel can perform the induction conduction through the electroconductive bridging portions, thereby effectively increasing the conduction rate, decreasing the power load of the touch panel and saving the energy.

Claims

1. An touch panel with an electrode bridging structure, wherein the touch panel comprises an electroconductive substrate and an electroconductive film, each of opposite surfaces of the electroconductive substrate and the electroconductive film is coated with a transparent electroconductive layer, an annular electrode loop is disposed on a circumference of the electroconductive substrate, four electroconductive wires are connected to four corners of the electrode loop, a region, which is disposed between the electroconductive substrate and electroconductive film and corresponds to the electrode loop, is printed with an insulating layer and a plurality of insulators formed in an enclosed space, the electroconductive film is adhered onto the electroconductive substrate through an adhesive layer, a connection terminal portion is disposed on the electroconductive substrate, the connection terminal portion has electroconductive connection terminals connected to the electroconductive wires, respectively, a middle of the connection terminal portion has a signal connection terminal to be connected to the electroconductive film for induction conduction, and the characteristic lies in that:

the signal connection terminal of the connection terminal portion is connected to first ends of at least two signal wires, and a second end of each of the signal wires is formed with at least one electroconductive bridging portion, which is longitudinal and has a long axis in parallel with an X-axis or a Y-axis corresponding to an arranged position of the electroconductive bridging portion; and

the insulating layer and the adhesive layer are formed with longitudinal through holes corresponding to the electroconductive bridging portions, respectively, so that the electroconductive bridging portions may contact with the transparent electroconductive layer of the electroconductive film.

2. The touch panel according to claim 1, wherein the electrode bridging structure has two opposite electroconductive bridging portions.

3. The touch panel according to claim 1, wherein the electrode bridging structure has four electroconductive bridging portions disposed on the corners, respectively.

4. The touch panel according to claim 1, wherein the two electroconductive bridging portions of the electrode bridging structures are disposed on an X-axis side and a Y-axis side corresponding to diagonal corners, respectively.

5. The touch panel according to claim 1, wherein the two electroconductive bridging portions of the electrode bridging structures are disposed on middle portions of two opposite parallel axis sides other than the connection terminal portion.

6. The touch panel according to claim 1, wherein the electroconductive bridging portion of the electrode bridging structure has the long axis with a length ranging from 12 to 25 mm, and a line width ranging from 0.8 to 2 mm