Touch window

Patent metadata

Field	Value
Publication number	US-9965113-B2
Application number	US-201514685870-A
Country	US
Kind code	B2
Filing date	Apr 14, 2015
Priority date	Apr 14, 2014
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

Disclosed is a touch window. The touch window includes a cover substrate; a substrate on the cover substrate; and an electrode on the substrate, wherein the substrate includes one surface facing the cover substrate and an opposite surface opposite to the one surface, the electrode is disposed on the opposite surface, and the cover substrate and the substrate have flexible curved surfaces.

First claim

What is claimed is:

1. A touch window comprising:
a substrate;
and
an electrode provided on the substrate,
a cover substrate provided on the substrate, wherein the cover substrate includes a partial flat surface and a partial curved surface at an outermost edge of the cover substrate,
an adhesive layer proved between the cover substrate and the substrate,
wherein the electrode includes;
a first sensing electrode extending in a first direction and having a plurality of first electrode parts and a plurality of first connection parts, and
a second sensing electrode extending in a second direction that is different from the first and having a plurality of second electrode parts and a plurality of second connection parts,
wherein the first electrode parts and the second electrode parts are disposed on a same plane, and
wherein an area of an insulating layer between the first connection parts and the second connection parts is larger than an area of the electrode; and

a wire electrode including a first wire electrode connected to the first electrode parts, and a second wire electrode connected to the second electrode parts, wherein the second wire electrode and the second electrode parts are disposed on different planes by the insulating layer,
wherein the electrode and the wire electrode include at least one of chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), or molybdenum (Mo),
wherein the electrode has a mesh shape including a mesh line and a mesh opening,
wherein a line width of the first electrode parts, the first connection parts, the second electrode parts and the second connection parts is 1.5 μm to 3 μm, and
wherein an area of the partial flat surface is greater than an area of the partial curved surface.

2. The touch window of claim 1 , further comprising an intermediate layer having an insulating material and provided between the cover substrate and the substrate, wherein the intermediate layer includes a first surface facing the cover substrate and a second surface opposite to the first surface,
wherein one of the first electrode or the second electrode is disposed on the first surface of the intermediate layer.

3. The touch window of claim 2 , wherein the cover substrate, the intermediate layer and the substrate are bent in a direction of the second surface.

4. The touch window of claim 1 , further comprising a blocking layer disposed between the cover substrate and the substrate.

5. The touch window of claim 4 , wherein the blocking layer blocks light having a wavelength of 300 nm to 800 nm.

6. The touch window of claim 4 , wherein the blocking layer includes a base and a dye provided in the base.

7. The touch window of claim 6 , wherein the base includes at least one of polyethylene terephthalate (PET), polycarbonate (PC), cyclic olefin copolymer (COC) or cyclic olefin polymer (COP), and
wherein the dye includes at least one of azo dye, disperse dye or phthalocyanine dye.

8. The touch window of claim 1 , wherein the partial curved surface of the cover substrate is provided in two sides of the outermost edge of the cover substrate.

9. The touch window of claim 1 , wherein the substrate comprises a partial flat surface and a partial curved surface, and wherein the partial curved surface of the substrate is provided in two sides of an outermost edge of the substrate.

10. The touch window of claim 2 , wherein the intermediate layer includes a partial flat surface and a partial curved surface, and wherein the partial curved surface of the intermediate layer is provided in two sides of an outermost edge of the intermediate layer.

11. The touch window of claim 2 , wherein the intermediate layer and the substrate have a same shape.

12. The touch window of claim 1 , wherein the cover substrate is thicker than the substrate.

13. The touch window of claim 2 , wherein the cover substrate is thicker than the intermediate layer.

14. A touch device comprising:
a display panel; and
a touch window on the display panel;
wherein the display panel is an organic electroluminescence light emitting device,
wherein the display panel includes a first substrate,
wherein a thin film transistor and an organic light-emitting device are formed on the first substrate,
wherein the touch window includes:
a substrate;
a cover substrate on the substrate, wherein the cover substrate includes a partial flat surface and a partial curved surface at an outermost edge of the cover substrate,
an adhesive layer between the cover substrate and the substrate,
an electrode on the substrate, the electrode including:
a first sensing electrode extending in a first direction and having a plurality of first electrode parts and a plurality of first connection parts; and
a second sensing electrode extending a second direction that is different from the first direction and having a plurality of second electrode parts and a plurality of second connection parts,

wherein the first electrode parts and the second electrode parts are disposed on a same plane, and
wherein an area of an insulating layer between the first connection parts and the second connection parts is larger than an area of the electrode; and
a wire electrode including a first wire electrode connected to the first electrode parts, and a second wire electrode connected to the second electrode parts, wherein the second wire electrode and the second electrode parts are disposed on different planes by the insulating layer,
wherein the electrode and the wire electrode include at least one of chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), or molybdenum (Mo),

wherein the electrode has a mesh shape including a mesh line and a mesh opening,
wherein a line width of the first electrode parts, the first connection parts, the second electrode parts, and the second connection parts is 1.5 μm to 3 μm, and
wherein an area of the partial flat surface is greater than an area of the partial curved surface.

15. The touch device of claim 14 , wherein the partial curved surface of the substrate is provided in two sides of an outermost edge of the substrate.

16. The touch device of claim 14 , wherein the cover substrate is thicker than the substrate.

17. The touch device of claim 14 , further comprising an intermediate layer provided between the cover substrate and the substrate, wherein the intermediate layer includes an insulating material, and wherein the cover substrate is thicker than the intermediate layer.

18. The touch window of claim 1 , wherein the insulating layer has a thickness that is less than a thickness of the substrate.

19. A touch device comprising;
a display panel; and
a touch window on the display panel;
wherein the display panel is an organic electroluminescence light emitting device,
wherein the display panel includes a first substrate and a second substrate,
wherein a thin film transistor and an organic light-emitting device are formed on the first substrate,
wherein the touch window includes:
a cover substrate;
an electrode on the second substrate,
wherein the electrode includes a first electrode and a second electrode,
wherein the second substrate includes a first surface facing the cover substrate and a second surface opposite with the first surface of the second substrate,
wherein at least one of the first electrode or the second electrode is provided between cover substrate and the first surface of the second substrate,
wherein the cover substrate includes a partial flat surface and a partial curved s

Assignees

• Lg Innotek Co Ltd

Inventors

• Ryu Ji Chang
• Lee Gyu Rin
• Park Soung Kyu
• Kang Mun Suk
• Kwon Do Youb
• Yun Seok Pyo
• Lee Jin Seok
• Lee Chung Wan
• Choi Gwang Hei
• Her Jae Hak

Classifications

• 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

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F3/0448 Primary

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title