Electrode plate having a metal mesh pattern, and electrochromic plate, electrochromic mirror and display device using the same

• US 9,857,656 B2
• Filed: 07/31/2014
• Issued: 01/02/2018
• Est. Priority Date: 09/17/2013
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Seo, Young Dae, Son, Hyo Won, Hwang, Joo Hyun
• Primary Examiner(s): Mummalaneni, Nalini
• Assistant Examiner(s): NOKHAM, JAMES S
• Application Number:
  US14/448,454
• Publication Number:
  US 20150077361A1
• Time in Patent Office: 1,251 Days
• Field of Search: 345173-174, 349106-111, 349147, 359266-273, 136263, 136252, 324663
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/155 Electrodes
• CPC Class Codes: G06F 2203/04102 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 Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04112 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 Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

Provided are an electrode plate using an ITO, and an electrochromic plate, an electrochromic mirror and a display device using the electrode plate, the electrode plate including a transparent electrode layer, a metal mesh pattern on the transparent electrode layer, an insulating layer provided in a space defined by an upper surface of the transparent electrode layer and the metal mesh pattern and between metal components of the metal mesh pattern, and a base substrate on the metal mesh pattern and the insulating layer.

Claims

1. An electrode plate, comprising:

a transparent electrode layer;

a metal mesh pattern on the transparent electrode layer;

an electrode terminal connected to one side of the metal mesh pattern;

an insulating layer on the transparent electrode layer; and

a base substrate on the metal mesh pattern and the insulating layer;

wherein the base substrate comprises an opening area and a metal area, wherein the opening area exposes a surface of the base substrate,

wherein the insulating layer is in direct contact with the metal mesh pattern,

wherein the transparent electrode layer is in direct contact with the metal mesh pattern,

wherein the metal mesh pattern comprises a first pattern component extending in a first direction and a second pattern component crossing the first pattern component,

wherein a region of the first pattern component crossed by the second pattern component comprises a slope portion or a bent portion in a plane of the metal mesh pattern,

wherein the metal mesh pattern comprises a first pattern region of first pattern pitches and a second pattern region of second pattern pitches located at a same side of the metal mesh pattern, each of the second pattern pitches being smaller than each of the first pattern pitches;

wherein the second pattern region electrically connects the first pattern region and the electrode terminal,

wherein the transparent electrode layer contains an ITO,

wherein the metal mesh pattern is formed with Ag or Cu, and

wherein a pad portion is disposed in a center of a surface of the electrode terminal, the pad portion protruding from the surface of the electrode terminal with a predetermined height.

2. The electrode plate of claim 1, wherein the transparent electrode layer is an ITO (Indium Tin Oxide) and has a thickness of 2000 Å

or less.

3. The electrode plate of claim 2, wherein a thickness of the metal mesh pattern ranges from 0.1 to 5 μ

m.

4. The electrode plate of claim 2, wherein a thickness of the metal mesh pattern ranges from 0.1 to 3 μ

m.

5. The electrode plate of claim 2, wherein a thickness of the metal mesh pattern ranges from 0.1 to 1 μ

m.

6. The electrode plate of claim 2, wherein a width of a pattern component of the metal mesh pattern ranges from 0.1 to 10 μ

m.

7. The electrode plate of claim 2, wherein a width of a pattern component of the metal mesh pattern ranges from 1 to 1 μ

m.

8. The electrode plate of claim 2, wherein a width of a pattern component of the metal mesh pattern ranges from 2 to 5.3 μ

m.

9. The electrode plate of claim 1, wherein the slope portion or the bent portion is provided by removing a corner region from the region of the first pattern component crossed by the second pattern component.

10. The electrode plate of claim 1, wherein the insulating layer is an ultraviolet curable resin layer.

11. The electrode plate of claim 1, wherein a material of the base substrate comprises PET (Polyethylene Terephthalate) or PES (Poly Ether Sulfones).

12. An electrochromic plate, comprising:

a first transparent electrode including an electrode plate of claim 1;

a second transparent electrode provided to face the first transparent electrode; and

an electrochromic layer between the first transparent electrode and the second transparent electrode.

13. An electrochromic mirror, comprising:

a front electrode including an electrode plate of claim 1;

a rear electrode having a reflective layer facing the front electrode;

an electrochromic layer between the electrode plate and the rear electrode; and

a support member intended for supporting a mirror body including the front electrode, the rear electrode and the electrochromic layer and for fixing the mirror body to a vehicle.

14. A display device, comprising:

a display substrate including a plurality of pixels and a driving circuit for driving the plurality of pixels; and

a touch screen panel provided on one surface of the display substrate and including an electrode plate of claim 1.