TOUCH SCREEN PANEL AND METHOD OF FABRICATING THE SAME

• US 20100182253A1
• Filed: 08/18/2009
• Published: 07/22/2010
• 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: Kim, Jin-Yeol, Jang, In-Won, Kim, Tae-Hyeong, Park, Jung-Mok, Cho, Sun-Haeng, Lee, Chang-Yong, Kang, Dong-Wook, Huang, Seong-Je
• Granted Patent: US 8,847,893 B2
• Time in Patent Office: Days
• 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;

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 and corresponding to the second sensing patterns;

a plurality of second dummy patterns between the second sensing patterns and corresponding to the first sensing patterns; and

an insulating layer between the first and second substrates.

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 first and second sensing patterns each comprise sensing patterns coupled to one another in columns or rows along the first or second direction, and pad portions coupled to the columns or rows; and

the touch screen panel further comprises a plurality of metal patterns electrically coupled to the pad portions of the first and second sensing patterns, the metal patterns electrically coupling the first and second sensing patterns to respective position detecting lines.

4. The touch screen panel of claim 3, wherein the sealant is between at least the metal patterns and the pad portions of the first or second sensing patterns, and comprises a conductive material through which the pad portions of the first or second sensing patterns are electrically coupled to the metal patterns.

5. The touch screen panel of claim 1, wherein the insulating layer comprises at least one of a first insulating layer for covering the first sensing patterns and the first dummy patterns, or a second insulating layer for covering the second sensing patterns and the second dummy patterns.

6. The touch screen panel of claim 1, wherein the insulating layer comprises a 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.

7. The touch screen panel of claim 6, wherein the filler material comprises a super view resin (SVR).

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

9. 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.

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

11. A method of fabricating a touch screen panel, the method comprising:

forming a plurality of first sensing patterns and a plurality of first dummy patterns on a first substrate, the first sensing patterns being coupled to one another along a first direction and the first dummy patterns being formed between the first sensing patterns;

forming a plurality of second sensing patterns and a plurality of second dummy patterns on a second substrate, the second sensing patterns being coupled to one another along a second direction and the second dummy patterns being formed between the second sensing patterns;

aligning the first and second substrates together, thereby the second sensing patterns being alternately arranged with the first sensing patterns so as not to overlap with the first sensing patterns; and

joining the first and second substrates together using a sealant.

12. The method of claim 11, further comprising filling a space between the first and second substrates with a filler material.

13. The method of claim 12, wherein the filler material is injected between the first and second substrates using an injection technique.

14. The method of claim 12, wherein the filler material is filled between the first and second substrates using a vacuum dropping technique.