DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME

• US 20110187957A1
• Filed: 11/11/2010
• Published: 08/04/2011
• Est. Priority Date: 02/03/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Deok-Jung, Kim, Min-Ki, Kim, Yun-Jae, Son, Yang-Han
• Granted Patent: US 8,760,599 B2
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133311 Environmental protection, e.g. against dust or humidity
• CPC Class Codes: G02F 1/133325 Assembling processes
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/161 Gaskets; Spacers; Sealing of cells; Filling or closing of cells
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements

Abstract

A display device and a method for manufacturing the same are disclosed. In one embodiment, the display device includes: i) a display panel configured to display an image via a display surface; a transparent protective portion formed over the display panel, ii) a top chassis formed between the transparent protective portion and the display panel and iii) a bottom chassis formed below the display panel and coupled to the top chassis so as to protect the display panel. The display device may further include 1) a plurality of adhesive members arranged at predetermined intervals on an outer periphery of the display surface of the display panel so as to attach the display panel to the top chassis, 2) an adhesive layer formed between the display panel and the transparent protective portion and 3) a sealing portion formed to fill at least part of the space between i) a sidewall portion of the display panel and ii) the top chassis and bottom chassis.

Claims

1. A display device comprising:

a display panel configured to display an image via a display surface;

a transparent protective portion formed over the display panel;

a top chassis formed between the transparent protective portion and the display panel;

a bottom chassis formed below the display panel and coupled to the top chassis so as to protect the display panel;

a plurality of adhesive members arranged at predetermined intervals on an outer periphery of the display surface of the display panel so as to attach the display panel to the top chassis;

an adhesive layer formed between the display panel and the transparent protective portion; and

a sealing portion formed to fill at least part of the space between i) a sidewall portion of the display panel and ii) the top chassis and bottom chassis.

2. The display device of claim 1, wherein the adhesive layer is formed from a liquid resin.

3. The display device of claim 1, wherein the top chassis comprises a boundary portion formed in substantially parallel with the outer periphery of the display surface of the display panel and a sidewall portion extending downward from an outer edge of the boundary portion,

wherein the bottom chassis comprises a base portion formed in substantially parallel with a bottom surface of the display panel and a sidewall portion extending upward from an edge of the base portion, and wherein a bottom surface is opposing the display surface.

4. The display device of claim 3, further comprising:

a fastening portion formed at the sidewall portion of the top chassis to be coupled to one side of the bottom chassis; and

a corresponding fastening portion formed at the sidewall portion of the bottom chassis to be coupled to the fastening portion of the top chassis.

5. The display device of claim 4, wherein the sealing portion at least partially fills the space between the fastening portion and the corresponding fastening portion.

6. The display device of claim 4, wherein the fastening portion comprises an engaging hole, and

wherein the corresponding fastening portion comprises a protrusion to be coupled to the engaging hole.

7. The display device of claim 6, wherein the sealing portion at least partially fills the space between the engaging hole of the fastening portion and the protrusion of the corresponding fastening portion.

8. The display device of claim 1, wherein the sealing portion is formed from a liquid resin.

9. The display device of claim 1, wherein the adhesive members comprise a double-sided tape.

10. The display device of claim 1, wherein the adhesive members are positioned at four edges along the outer periphery of the display panel.

11. The display device of claim 1, wherein the adhesive members are arranged at substantially equal intervals.

12. The display device of claim 1, wherein the transparent protective portion comprises a transparent window or a touch screen panel.

13. The display device of claim 1, wherein the adhesive layer and the sealing portion are formed from a thermally curable liquid resin.

14. The display device of claim 1, wherein the display panel is an LCD panel.

15. The display device of claim 1, further comprising a backlight unit formed between the display panel and the bottom chassis.

16. A method of manufacturing a display device comprising:

providing a plurality of adhesive members arranged at predetermined intervals on an outer periphery of a display surface of a display panel, wherein the display panel is configured to display an image via the display surface, and wherein a plurality of gaps are formed between the adhesive members;

interposing the display panel between a bottom chassis and a top chassis;

applying a liquid resin on the display surface of the display panel;

pressing a transparent protective portion on the liquid resin so that at least part of the liquid resin leaks out through the gaps; and

guiding the leaked liquid resin to flow into the space between i) lateral sides of the display panel and ii) the top chassis and bottom chassis so that the space is at least partially filled with the liquid resin.

17. The method of claim 16, further comprising curing the liquid resin with the use of heat after at least partially filling the liquid resin in the space between the top chassis and the bottom chassis.

18. The method of claim 16, wherein the adhesive members are formed at all four edges forming the outer periphery of the display panel.

19. The method of claim 16, wherein the adhesive members are arranged at substantially equal intervals.

20. A display device comprising:

a top chassis comprising a side wall;

a bottom chassis comprising a side wall and coupled to the top chassis;

a display panel interposed between the top chassis and the bottom chassis, wherein both of the top chassis and the bottom chassis are greater in size than the display panel so that the side wall of the bottom chassis contacts the side wall of the top chassis while the display panel contacts neither of the side walls of the top chassis and the bottom chassis; and

a sealing material provided in at least part of an inner portion of the sidewalls of the top chassis and the bottom chassis.