Touch screen panel with tail area and display device comprising the same

Patent metadata

Field	Value
Publication number	US-10175810-B2
Application number	US-201615223250-A
Country	US
Kind code	B2
Filing date	Jul 29, 2016
Priority date	Jul 30, 2015
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A touchscreen panel includes touch sensors on a base film and routing wires connected to the touch sensors, wherein the base film has a main area and a tail area protruding from the main area, the main area includes an active region where the touch sensors are placed and a bezel region located on the outside of the active region, and the routing wires pass through the bezel region and the active region, and connect terminals provided at one end of the tail area and the touch sensors.

First claim

What is claimed is:

1. A touchscreen panel which comprises touch sensors on a base film and routing wires connected to the touch sensors,
wherein the base film comprises a main area and a tail area protruding from the main area,
the main area comprises an active region where the touch sensors are placed and a bezel region located on the outside of the active region, and
the routing wires pass through the bezel region and the tail area, and connect terminals provided at one end of the tail area and the touch sensors,
wherein the routing wires connect to the touch sensors through via holes that penetrate the base film; and
wherein:
the touch sensors comprise:
first electrode lines provided on an upper surface of the base film; and
second electrode lines provided on a lower surface of the base film, and the routing wires comprise:
first routing wires provided on the upper surface of the base film and connected to the first electrode lines; and
second routing wires provided on the upper surface of the base film and connected to the second electrode lines through the via holes.

2. The touchscreen panel of claim 1 , wherein the base film comprises a plurality of tail areas that extend from the main area and are separated from each other.

3. The touchscreen panel of claim 1 , wherein the tail area comprises at least one bent portion in the same plane.

4. The touchscreen panel of claim 1 , wherein the tail area has a planar polygon shape including a rectangle and a pentagon.

5. The touchscreen panel of claim 1 , wherein the terminals are detachably inserted into a connector on the main board to receive signals, and the routing wires are narrower in width than the terminals.

6. The touchscreen panel of claim 1 , wherein the base film comprises one of the following: polyethyelene terephthalate (PET), poly carbonate (PC), and cyclic olefin polymer (COP).

7. The touchscreen panel of claim 1 , wherein the routing wires comprise either metal nano wires or metal meshes.

8. The touchscreen panel of claim 1 , wherein the tail area is narrower in width than the main area.

9. A display device which comprises a display panel with pixels embedded therein to display an input image and a touchscreen panel disposed on the display panel,
the touchscreen panel comprising:
touch sensors on a base film; and
routing wires connected to the touch sensors,
wherein the routing wires connect to the tough sensors through via holes that penetrate the base film,
wherein the base film comprises a main area and a tail area protruding from the main area,
the main area comprises an active region where the touch sensors are placed and a bezel region located on the outside of the active region, and
the routing wires pass through the bezel region and the tail area, and connect terminals provided at one end of the tail area and the touch sensors,
wherein:
the touch sensors comprise:
first electrode lines provided on an upper surface of the base film; and
second electrode lines provided on a lower surface of the base film, and the routing wires comprise:
first routing wires provided on the upper surface of the base film and connected to the first electrode lines; and
second routing wires provided on the upper surface of the base film and connected to the second electrode lines through the via holes.

10. The display device of claim 9 , further comprising a polarizing film interposed between the touchscreen panel and the display panel.

11. The display device of claim 9 , wherein the display panel comprises either a liquid crystal display or an organic light-emitting diode display.

12. A display device which comprises pixels arranged on a TFT substrate and touch sensors disposed on a base film covering the pixels,
wherein the base film comprises a main area and a tail area protruding from the main area,
the main area comprises an active region where the touch sensors are placed and a bezel region located on the outside of the active region, in which routing wires connected to the touch sensors are placed,
the routing wires pass through the bezel region and the tail area, and connect terminals provided at one end of the tail area and the touch sensors, and
the routing wires connect to the touch sensors through via holes that penetrate the base film,
wherein:
the touch sensors comprise:
first electrode lines provided on an upper surface of the base film; and
second electrode lines provided on a lower surface of the base film, and the routing wires comprise:
first routing wires provided on the upper surface of the base film and connected to the first electrode lines; and
second routing wires provided on the upper surface of the base film and connected to the second electrode lines through the via holes.

13. The display device of claim 12 , further comprising a polarizing film disposed on the display panel,
wherein the touch sensors are disposed on the upper surface of the base film, between the base film and the polarizing film.

14. The display device of claim 12 , wherein the touch sensors are placed on the lower surface of the base film facing the TFT substrate.

15. The touchscreen panel of claim 1 , wherein the tail area has a first width and then a second width as it protrudes perpendicularly from the main area, the first width being greater than the second width.

Assignees

• Lg Display Co Ltd

Inventors

• Hong Sunggon
• Lee Jaedo
• Lee Namseok
• CHA Dongjoong

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title