Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016170127-A1
Application number	US-201514878844-A
Country	US
Kind code	A1
Filing date	Oct 8, 2015
Priority date	Dec 10, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

A display apparatus according to an embodiment of the inventive concept may include a display panel, a light guide panel, and the light source. The light guide plate may include a light guide portion, a barrier rib portion, a wavelength conversion portion, and a cover portion. The barrier rib portion may be disposed on an upper surface of the light guide portion. The wavelength conversion portion may be disposed on the upper surface of the light guide portion to be surrounded by the barrier rib portion. The cover portion may be disposed on the wavelength conversion portion and the barrier rib portion, and cover the wavelength conversion portion.

First claim

What is claimed is:

1 . A display apparatus, comprising:
a display panel receiving light to display an image; a light guide plate guiding the light to the display panel; and a light source disposed on one side of the light guide plate to supply the light to the light guide plate, wherein the light guide plate comprises: a light guide portion; a barrier rib portion disposed on an upper surface of the light guide portion, and disposed along an edge of the upper surface of the light guide portion; a wavelength conversion portion disposed on the upper surface of the light guide portion to be surrounded by the barrier rib portion, and including a wavelength conversion material; and a cover portion disposed on the wavelength conversion portion and the barrier rib portion, and covering the wavelength conversion portion.

2 . The display apparatus of claim 1 , wherein the light guide portion, the barrier rib portion, and the cover portion comprise a transparent material, and the light guide portion and the barrier rib portion are integrally formed.

3 . The display apparatus of claim 1 , wherein the light guide portion and the cover portion comprise a transparent material, and the barrier rib portion comprises a non-transparent material.

4 . The display apparatus of claim 1 , wherein the wavelength conversion portion further comprises a photocurable resin, and the wavelength conversion material is a quantum dot.

5 . The display apparatus of claim 1 , wherein at least one of the light guide portion and the cover portion is formed of glass.

6 . The display apparatus of claim 1 , wherein the light guide plate further comprises an adhesive member disposed between the cover portion and the barrier rib portion, and configured to adhere the cover portion to the barrier rib portion.

7 . The display apparatus of claim 1 , wherein the barrier rib portion is frit glass.

8 . The display apparatus of claim 1 , wherein the light source supplies blue light, and the wavelength conversion material converts blue light into green light and red light.

9 . The display apparatus of claim 1 , wherein an outer surface of the barrier rib portion is coplanar with a side surface of the light guide portion.

10 . A method of manufacturing a display apparatus, the method comprising:
forming a light guide plate; disposing the light guide plate on a lower surface of a display panel; and disposing a light source on one side of the light guide plate, wherein the formation of the light guide plate comprises: forming a barrier rib portion having a rectangular closed loop shape on a light guide portion; providing a wavelength conversion portion surrounded by the barrier rib portion on the light guide portion; and disposing a cover portion on the barrier rib portion and the wavelength conversion portion.

11 . The method of claim 10 , wherein the wavelength conversion portion comprises a wavelength conversion material and a photocurable resin, and when the photocurable resin is cured, the cover portion and the wavelength conversion portion are attached to each other.

12 . The method of claim 10 , wherein the formation of the barrier rib portion comprises etching the light guide portion to form the barrier rib portion.

13 . The method of claim 12 , wherein the barrier rib portion and the light guide portion are integrally formed, and each of the barrier rib portion and the light guide portion is formed of glass.

14 . The method of claim 10 , wherein at least one of the light guide portion and the cover portion is formed of glass.

15 . The method of claim 10 , wherein the barrier rib portion is formed of frit glass.

16 . The method of claim 15 , wherein the formation of the light guide plate further comprises:
disposing the cover portion on the barrier rib portion and the wavelength conversion portion; and irradiating a laser on the barrier rib portion to attach the barrier rib portion and the cover portion.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Hyungjin
• Cha Hanmoe

Classifications

• G02B6/0065

  Manufacturing aspects; Material aspects · CPC title

• G02B6/0035 Primary

  provided on the surface of the light guide or in the bulk of it · CPC title

• G02F1/01791

  Quantum boxes or quantum dots · CPC title

• G02F1/133614

  using photoluminescence, e.g. phosphors illuminated by UV or blue light · CPC title

• G02B6/004

  Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles · CPC title