TOUCH PANEL

• US 20140293168A1
• Filed: 06/13/2014
• Published: 10/02/2014
• Est. Priority Date: 06/06/2012
• Status: Abandoned Application

• Current Assignee: Wintek Corporation
• Original Assignee: Wintek Corporation
• Inventors: Tsai, Di-Shing, Liu, Wen-Chieh, Ho, Pei-Yi, Huang, Ping-Wen, Yu, Peng-Chih
• Application Number:
  US14/303,614
• Publication Number:
  US 20140293168A1
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/041 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

A touch panel including a substrate, a plurality of sensor units, a decoration layer, first signal lines, second signal lines, and at least one conductive component is provided. The substrate has an operation region and a periphery region surrounding the operation region. The sensor units are located within the operation region for sensing a coordinate of a touch point. The decoration layer is located within the periphery region. The first and second signal lines and the conductive component are located within the periphery region and disposed on the decoration layer. The conductive component has a widen portion located between the first and second signal lines, and the widen portion has a line width greater than those of the other portions of the conductive component.

Claims

1. A touch panel, comprising:

a substrate, having an operation region and a periphery region surrounding the operation region;

a plurality of sensor units, located within the operation region for sensing a coordinate of a touch point;

a decoration layer, located within the periphery region; and

at least one conductive component including a plurality of portions, located within the periphery region and disposed on the decoration layer, wherein the at least one conductive component has a widest portion and the widest portion has a line width which is greater than each line width of other portions of the at least one conductive component,

wherein in a selected region having an area of 0.3 mm×

0.3 mm in the widest portion of the at least one conductive component, the selected region includes at least one blank region having no metal pattern.

2. The touch panel of claim 1, wherein one end of the at least one conductive component is located in a bonding area of the periphery region for connecting to a ground.

3. The touch panel of claim 1, wherein the line width of the widest portion is equivalent to or larger than 0.5 mm, and the widest portion has at least one opening that defines the at least one blank region.

4. The touch panel of claim 3, wherein the at least one opening is an open-type opening or a close-type opening.

5. The touch panel of claim 1, further comprising:

a plurality of first signal lines, located within the periphery region and disposed on the decoration layer, wherein the plurality of the first signal lines are connected to a portion of the plurality of the sensor units, one end of each of the plurality of the first signal lines is connected to corresponding one of the plurality of the sensor units, while the other end of each of the plurality of the first signal lines is located in a bonding area of the periphery region; and

a plurality of second signal lines, located within the periphery region and disposed on the decoration layer, wherein the plurality of the second signal lines are connected to the other portion of the plurality of the sensor units, one end of each of the plurality of the second signal lines is connected to corresponding one of the plurality of the sensor units, while the other end of each of the plurality of the second signal lines is located in the bonding area of the periphery region, wherein a region between any adjacent two of the at least one conductive component and the first and second signal lines defines the at least one blank region.

6. The touch panel of claim 5, further comprising an insulating layer over the substrate to electrically insulate the plurality of the sensor units, wherein the insulating layer covers the plurality of the first signal lines, the plurality of the second signal lines and the at least one conductive component.

7. The touch panel of claim 6, further comprising a floating transparent conductive pattern disposed on the insulating layer and disposed over the at least one conductive component.

8. The touch panel of claim 5, wherein the decoration layer is disposed on the substrate and has a lower first side neighboring to the substrate and an upper second side opposite to the first side, and the first and second signal lines and the at least one conductive component are located on the second side of the decoration layer.

9. The touch panel of claim 1, wherein the plurality of the sensor units includes a plurality of first inductive units and a plurality of second inductive units arranged alternately, each of the plurality of the first inductive units and the plurality of the second inductive units includes at least one sensing electrode, and a material of the at least one sensing electrode includes a transparent conductive material.

10. The touch panel of claim 1, wherein a material of the decoration layer is a photoresist material.

11. The touch panel of claim 1, wherein the at least one conductive component further comprises at least one widen portion having a line width smaller than the line width of the widest portion.