TOUCH SCREEN DEVICE AND METHOD OF MANUFACTURING THE SAME

• US 20110254779A1
• Filed: 06/11/2010
• Published: 10/20/2011
• Est. Priority Date: 04/14/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: LEE, Jong Young
• Application Number:
  US12/814,219
• Publication Number:
  US 20110254779A1
• 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 3/044 by capacitive means
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

Disclosed herein are a touch screen device and a method of manufacturing the same. The touch screen device includes: a touch screen; a display formed on one side of the touch screen; and an adhesive layer formed between the touch screen and the display, in which an adhesive portion is formed on the entire surface where the adhesive layer is in contact with the touch screen and on the edge portions of the surface where the adhesive layer is in contact with the display. Further, the touch screen device has improved transmittance by removing an air layer between the touch screen and the display and can be easily corrected when the touch screen is incorrectly bonded with the display.

Claims

1. A touch screen device comprising:

a touch screen;

a display formed on one side of the touch screen; and

an adhesive layer formed between the touch screen and the display,

wherein, an adhesive portion is formed on the entire surface where the adhesive layer is in contact with the touch screen and on the edge portions of the surface where the adhesive layer is in contact with the display.

2. The touch screen device as set forth in claim 1, wherein the adhesive portion having adhesion is formed at a portion heated in the adhesive layer.

3. The touch screen device as set forth in claim 1, wherein the adhesive layer is an optical clear adhesive (OCA).

4. The touch screen device as set forth in claim 1, wherein the adhesive layer is made of silicon, polyurethane, PVC, acryl, or a mixture thereof.

5. A method of manufacturing a touch screen, comprising:

(A) disposing a touch screen on one side of an adhesive layer and a display on the other side of the adhesive layer; and

(B) partially bonding the touch screen with the display by heating the entire surface of the one side of the adhesive layer and the edge portions of the other side of the adhesive layer such that adhesive portions are formed over the entire surface of one side of the adhesive layer and at the edge portions of the other side of the adhesive layer.

6. The method of manufacturing a touch screen device as set forth in claim 5, wherein in the step (B), the adhesive portion having adhesion is formed at a portion heated in the adhesive layer.

7. The method of manufacturing a touch screen device as set forth in claim 5, wherein the adhesive layer is an optical clear adhesive (OCA).

8. The method of manufacturing a touch screen device as set forth in claim 5, wherein the adhesive layer is made of silicon, polyurethane, PVC, acryl, or a mixture thereof.

9. The method of manufacturing a touch screen device as set forth in claim 5, wherein the step (B) includes:

(B1) bonding one side of the adhesive layer with the touch screen by heating the entire surface of the one side of the adhesive layer to form a first adhesive portion throughout the one side of the adhesive layer; and

(B2) partially bonding the other side of the adhesive layer with the display by heating the edge portions of the other side of the adhesive layer to form a second adhesive portion at the edge portions of the other side of the adhesive layer.

10. The method of manufacturing a touch screen device as set forth in claim 9, wherein the step (B2) includes:

(B21) disposing a jig having an opening at the inside and a frame at the edge portions onto the touch screen or the display; and

(B22) partially bonding the other side of the adhesive layer with the display by heating the frame of the jig to form a second adhesive portion at the edge portions of the other side of the adhesive layer.