Touch window

• US 9,625,941 B2
• Filed: 06/25/2015
• Issued: 04/18/2017
• Est. Priority Date: 05/26/2011
• Status: Expired due to Fees

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Han, Jae Heung
• Primary Examiner(s): Danielsen, Nathan
• Application Number:
  US14/750,508
• Publication Number:
  US 20150293561A1
• Time in Patent Office: 663 Days
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• 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 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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
• CPC Class Codes: H03K 17/9622 using a plurality of detectors, e.g. keyboard
• CPC Class Codes: H03K 2017/9602 characterised by the type or shape of the sensing electrodes
• CPC Class Codes: H03K 2217/96023 Details of electro-mechanic connections between different elements, e.g.: sensing plate and integrated circuit containing electronics
• CPC Class Codes: H03K 2217/96031 Combination of touch switch and LC display
• CPC Class Codes: H03K 2217/960755 Constructional details of capacitive touch and proximity switches

Abstract

Disclosed is a touch window according to the present invention in which a FPCB, an IC, a function key area for a connection with a touch sensing sensor electrode are all formed in a single printed circuit board and are formed not to be exposed to the outside by receiving the printed circuit board in a lower part of a transparent window, thereby being capable of simplifying a structure of the touch window.

Claims

1. A touch window, comprising:

a substrate;

a first sensing electrode pattern which is a curvature pattern on the substrate;

a second sensing electrode pattern crossing the first sensing electrode pattern; and

a wiring connected to the first sensing electrode pattern or the second sensing electrode pattern,

wherein the first sensing electrode pattern is formed in a sine type curvature pattern or a cosine type curvature pattern.

2. The touch window of claim 1, wherein the first sensing electrode pattern is a curvature pattern having periodicity.

3. The touch window of claim 1, wherein the first sensing electrode pattern and the second sensing electrode pattern overlap with each other.

4. The touch window of claim 3, wherein the first sensing electrode pattern and the second sensing electrode pattern overlap with each other at an acute angle or an obtuse angle.

5. The touch window of claim 3, wherein the first sensing electrode pattern and the second sensing electrode pattern overlap with each other at an inflection point of the first sensing electrode pattern.

6. The touch window of claim 1, wherein the first sensing electrode pattern and the second sensing electrode pattern are disposed on different substrates.

7. The touch window of claim 1, wherein the second sensing electrode pattern is disposed between an n^th curvature part and a (n+1)^th curvature part, wherein n represents a natural number.