Optical Plate, Method of Manufacturing the Same, and Liquid Crystal Display Device Having the Same

• US 20080037272A1
• Filed: 02/01/2007
• Published: 02/14/2008
• Est. Priority Date: 02/01/2006
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Sang-hoon, Choi, Jin-sung, Song, Min-young, Kim, Jin-soo, Paek, Jung-wook, Ha, Ju-hwa, Joo, Byung-yun
• Granted Patent: US 8,279,371 B2
• Time in Patent Office: Days
• US Class Current: 362/561
• CPC Class Codes: B29D 11/00663 Production of light guides
• CPC Class Codes: G02B 6/0051 Diffusing sheet or layer
• CPC Class Codes: G02B 6/0053 Prismatic sheet or layer; Brightness enhancement element, sheet or layer
• CPC Class Codes: G02B 6/0065 Manufacturing aspects; Material aspects
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0071 with elongated shape, e.g. tube
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package

Abstract

A method of manufacturing an optical plate, includes forming a protrusion on a base film by jetting ink containing a liquid resin on the base film, contacting a light guiding plate to the protrusion, and curing the protrusion which contacts with the light guiding plate.

Claims

1. A method of manufacturing an optical plate, comprising:

forming a protrusion on a base film by jetting ink containing a liquid resin on the base film;

contacting a light guiding plate to the protrusion; and

curing the protrusion which contacts with the light guiding plate.

2. The method according to claim 1, wherein the protrusion comprises a light collecting pattern.

3. The method according to claim 2, wherein the liquid resin comprises an ultraviolet (UV) curing resin, and

wherein the light collecting pattern is cured by ultraviolet rays.

4. The method according to claim 3, wherein the contact of the light collecting pattern to the light guiding plate is made in a state where the light guiding plate is located on the base film.

5. The method according to claim 3, wherein the light collecting pattern is cured in a state where the light guiding plate is located on the base film.

6. The method according to claim 3, wherein the light collecting pattern has a stripe shape.

7. The method according to claim 6, wherein the light collecting pattern is provided to be plural in number, the plurality of light collecting pattern being disposed in parallel with each other.

8. The method according to claim 6, wherein the cured light collecting pattern has a larger contact area with the base film than that with the light guiding plate.

9. The method according to claim 8, wherein the base film comprises a plurality of light diffusing beads.

10. The method according to claim 2, wherein the light collecting pattern is provided as a dot pattern.

11. An optical plate comprising:

a light guiding plate;

a base film which is located on the light guiding plate; and

a light collecting pattern partially connecting the light guiding plate to the base film.

12. A liquid crystal display device, comprising:

a liquid crystal display panel;

an optical plate which is provided in rear of the liquid crystal display panel, the optical plate comprises a light guiding plate, a base film provided on the light guiding plate and a light collecting pattern partially connecting the light guiding plate to the base film; and

a light source which is provided on at least a lateral side of the light guiding plate.

13. The liquid crystal display device according to claim 12, wherein the light collecting pattern has a larger contact area with the base film than that with the light guiding plate.

14. The liquid crystal display device according to claim 12, wherein the light collecting pattern comprises an ultraviolet (UV) curing resin.

15. The liquid crystal display device according to claim 12, wherein the light collecting pattern is of a stripe type and is provided to be plural in number, the plurality of light collecting patterns being in parallel with each other.

16. The liquid crystal display device according to claim 15, wherein the light source is disposed in parallel with an extension direction of the light collecting pattern.