Touch screen panel and method of fabricating the same

• US 8,847,893 B2
• Filed: 08/18/2009
• Issued: 09/30/2014
• Est. Priority Date: 01/16/2009
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jung-Mok, Cho, Sun-Haeng, Lee, Chang-Yong, Huang, Seong-Je, Kang, Dong-Wook, Kim, Jin-Yeol, Jang, In-Won, Kim, Tae-Hyeong
• Primary Examiner(s): MARINELLI, PATRICK
• Application Number:
  US12/543,421
• Publication Number:
  US 20100182253A1
• Time in Patent Office: 1,869 Days
• Field of Search: 345156-184, 345/104, 178 1801- 2004
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0445 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: Y10T 29/49155 Manufacturing circuit on or in base
• CPC Class Codes: Y10T 29/49895 Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Abstract

A touch screen panel for an image display device and a method of fabricating the same. The touch screen panel includes first and second substrates facing each other, the first and second substrates being joined together by a sealant; a plurality of first sensing patterns coupled to one another along a first direction on a side of the first substrate facing the second substrate; a plurality of second sensing patterns coupled to one another along a second direction on a side of the second substrate facing the first substrate; a plurality of first dummy patterns between the first sensing patterns corresponding to the second sensing patterns; a plurality of second dummy patterns between the second sensing patterns corresponding to the first sensing patterns; and an insulating layer between the first and second substrates.

Claims

1. A touch screen panel comprising:

first and second substrates facing each other, the first and second substrates being joined together by a sealant;

a plurality of first sensing patterns coupled to one another along a first direction on a side of the first substrate facing the second substrate, comprising sensing patterns coupled to one another in rows along the first direction, and pad portions coupled to the rows;

a plurality of second sensing pattern coupled to one another along a second direction on a side of the second substrate facing the first substrate, comprising sensing patterns coupled to one another in columns along the second direction, and pad portions coupled to the columns;

a plurality of first dummy patterns directly on the side of the first substrate between the first sensing patterns and corresponding to the second sensing patterns, the first dummy patterns being spaced from each other along the first direction and overlapped with the second sensing patterns that are spaced from each other along the first direction;

a plurality of second dummy patterns directly on the side of the second substrate between the second sensing patterns and corresponding to the first sensing patterns, the second dummy patterns being spaced from each other along the second direction and overlapped with the first sensing patterns that are spaced from each other along the second direction;

an insulating layer between the first and second substrates, the insulating layer comprising a filler material and a first insulating layer for directly covering the first sensing patterns and the first dummy patterns, wherein the filler material is disposed directly between the first insulating layer and the plurality of second sensing patterns and the plurality of second dummy patterns; and

a plurality of metal patterns electrically coupled to pad portions of the plurality of first sensing patterns and the plurality of second sensing patterns, the metal patterns electrically coupling the first sensing patterns and the second sensing patterns to respective position detecting lines,

wherein the sealant is directly between pad portions of the plurality of second sensing patterns and the plurality of metal patterns electrically coupled to pad portions of the plurality of first sensing patterns, and wherein the sealant comprises a conductive material through which pad portions of the second sensing patterns are electrically coupled to the metal patterns.

2. The touch screen panel of claim 1, wherein the second sensing patterns are alternately arranged with the first sensing patterns so as not to overlap with the first sensing patterns.

3. The touch screen panel of claim 1, wherein the insulating layer comprises the filler material for filling a space between the first substrate having the first sensing patterns and the first dummy patterns formed thereon and the second substrate having the second sensing patterns and the second dummy patterns formed thereon.

4. The touch screen panel of claim 3, wherein the filler material comprises a super view resin (SVR).

5. The touch screen panel of claim 1, wherein the first or second substrate comprises an integrally formed window.

6. The touch screen panel of claim 1, wherein the first and second dummy patterns are formed of same transparent materials as those of the first and second sensing patterns, respectively.

7. The touch screen panel of claim 1, wherein the first and second dummy patterns comprise separated patterns, respectively.