DISPLAY DEVICE HAVING TOUCH SCREEN

• US 20150062101A1
• Filed: 08/29/2014
• Published: 03/05/2015
• Est. Priority Date: 09/03/2013
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kim, Seunghyun, Choi, Howon, Kim, Jinyeol
• Granted Patent: US 9,721,500 B2
• Time in Patent Office: Days
• US Class Current: 345/206
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G09G 3/3233 with pixel circuitry controlling the current through the light-emitting element

Abstract

A display device comprises: a pixel array substrate comprising first pads; a touch screen substrate comprising second pads; an adhesive film that attaches the pixel array substrate and the touch screen substrate; and a conductive sealant that electrically connects the first pads and the second pads between the pixel array substrate and the touch screen substrate. The adhesive film comprises: an opening with the conductive sealant applied thereto; and an extension portion that surrounds the opening.

Claims

1. A display device comprising:

a pixel array substrate comprising first pads;

a touch screen substrate comprising second pads;

an adhesive film that attaches the pixel array substrate and the touch screen substrate; and

a conductive sealant that electrically connects the first pads and the second pads between the pixel array substrate and the touch screen substrate,

wherein the adhesive film comprises;

an opening with the conductive sealant applied thereto; and

an extension portion that surrounds the opening.

2. The display device of claim 1, wherein the extension portion extends along left and right sides of the adhesive film and defines the opening.

3. The display device of claim 1, wherein the extension portion extends along a top or a bottom side of the adhesive film and defines one edge of the opening.

4. The display device of claim 1, wherein the extension portion comprises:

a first extension portion that extends along the left and right sides of the adhesive film and defines the opening; and

a second extension portion that extends along the top or bottom side of the adhesive film and defines the other edge of the opening.

5. The display device of claim 2, wherein one or more of the first and second extension portions are connected to from the adhesive film.

6. The display device of claim 2, wherein one or more of the first and second extension portions are disconnected from the adhesive film.

7. The display device of claim 5, wherein the pixel array substrate comprises thin film transistors and organic light emitting diodes.

8. The display device of claim 6, wherein the pixel array substrate comprises thin film transistors and organic light emitting diodes.