LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME

• US 20130016311A1
• Filed: 07/12/2012
• Published: 01/17/2013
• Est. Priority Date: 07/13/2011
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: ISHII, Akira, Kobayashi, Setsuo, Tanabe, Shinji, Sento, Kiyoshi, Ishll, Katsuhiko
• Granted Patent: US 8,964,150 B2
• Time in Patent Office: Days
• US Class Current: 349/96
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements

Abstract

Provided is a liquid crystal display device, including: a liquid crystal display panel; a plate-shaped component having a light permeable region, the plate-shaped component being disposed so as to face a display surface of the liquid crystal display panel; a pressure sensitive adhesive layer having light permeability, which is adhered under pressure onto the display surface of the liquid crystal display panel; and an adhesive layer having light permeability, which is adhered onto a surface of the plate-shaped component facing the display surface, in which the plate-shaped component is mounted on the liquid crystal display panel through intermediation of the pressure sensitive adhesive layer and the adhesive layer.

Claims

1. A liquid crystal display device, comprising:

a liquid crystal display panel;

a plate-shaped component having a light permeable region, the plate-shaped component being disposed so as to face a display surface of the liquid crystal display panel;

a pressure sensitive adhesive layer having light permeability, which is adhered under pressure onto the display surface of the liquid crystal display panel; and

an adhesive layer having light permeability, which is adhered onto a surface of the plate-shaped component facing the display surface,

wherein the plate-shaped component is mounted on the liquid crystal display panel through intermediation of the pressure sensitive adhesive layer and the adhesive layer.

2. The liquid crystal display device according to claim 1, further comprising a resin plate having light permeability, which is interposed between the pressure sensitive adhesive layer and the adhesive layer,

wherein the pressure sensitive adhesive layer is adhered under pressure onto the resin plate, and

wherein the adhesive layer is adhered onto the resin plate.

3. The liquid crystal display device according to claim 1, wherein the pressure sensitive adhesive layer and the adhesive layer are in contact with each other.

4. The liquid crystal display device according to claim 1,

wherein the plate-shaped component comprises a plate member having light permeability, and a light shielding layer which is laminated on the plate member so as to avoid facing at least a center portion of a surface of the plate member on the liquid crystal display panel side, and

wherein the adhesive layer is adhered onto the plate-shaped component so as to cross a border between the center portion of the plate member and the light shielding layer.

5. The liquid crystal display device according to claim 1, wherein the plate-shaped component comprises a touch panel.

6. The liquid crystal display device according to claim 1,

wherein the liquid crystal display panel comprises at least a polarizing plate on the display surface side, and

wherein the pressure sensitive adhesive layer is adhered onto the polarizing plate.

7. A method of manufacturing a liquid crystal display device, comprising:

forming a pressure sensitive adhesive layer having light permeability on a display surface of a liquid crystal display panel;

bonding, onto the pressure sensitive adhesive layer, a plate-shaped component having a light permeable region through intermediation of a liquid adhesive having light permeability;

moving, before the liquid adhesive is cured, the plate-shaped component to adjust a position of the plate-shaped component; and

curing the liquid adhesive to form an adhesive layer.