Display module and display apparatus having the same

Patent metadata

Field	Value
Publication number	US-2016350053-A1
Application number	US-201615166940-A
Country	US
Kind code	A1
Filing date	May 27, 2016
Priority date	May 28, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A display module and a display apparatus having the same are provided. The display module including a circuit board, a plurality of light emitting device packages disposed on the circuit board and electrically coupled to the circuit board, and a coating unit coated with coating solution containing a light diffusion agent covers the plurality of light emitting device packages and fills in a gap between the plurality of light emitting device packages, wherein the coating unit further includes at least one first light diffusion part that is curvedly formed on a surface of the coating unit onto which light emitted from the light emitting device packages is incident.

First claim

What is claimed is:

1 . A display module comprising:
a circuit board; a plurality of light emitting device packages disposed on the circuit board and electrically coupled to the circuit board; and a coating unit coated with coating solution containing a light diffusion agent covers the plurality of light emitting device packages and fills in a gap between the plurality of light emitting device packages, wherein the coating unit further comprises at least one first light diffusion part that is curvedly formed on a surface of the coating unit onto which light emitted from the light emitting device packages is incident.

2 . The display module as claimed in claim 1 , wherein the at least one first light diffusion part is concavely formed to face a corresponding light emitting device package among the plurality of light emitting device packages.

3 . The display module as claimed in claim 1 , wherein the display module further comprises at least one second light diffusion part that is curvedly formed on a surface of the first light diffusion part and diffuses the light passing through the at least one first light diffusion part.

4 . The display module as claimed in claim 3 , wherein the at least one second light diffusion part is a convex lens formed through dropping of a coating ink in a preset position on the first light diffusion part.

5 . The display module as claimed in claim 3 , wherein the at least one second light diffusion part is a convex lens formed through a nano imprinting process using a mold.

6 . The display module as claimed in claim 1 , wherein an amount of the light diffusion agent contained in a portion of the coating unit in which the first light diffusion part is formed is greater than an amount of the light diffusion agent contained in a remainder portion of the coating unit excluding the portion in which the first light diffusion part is formed.

7 . The display module as claimed in claim 1 , wherein a light emitting device package of the plurality of light emitting device packages comprises a third light diffusion part that faces the first light diffusion part and diffuses the light emitted from the light emitting device package before the light reaches the surface of the coating unit.

8 . The display module as claimed in claim 7 , wherein the third light diffusion part is concavely formed.

9 . The display module as claimed in claim 7 , wherein the light emitting device package further comprises at least one fourth light diffusion part disposed close to an edge of the third light diffusion part.

10 . The display module as claimed in claim 9 , wherein the at least one fourth light diffusion part is formed to be inclined downward toward an edge of the light emitting device package.

11 . The display module as claimed in claim 10 , wherein the fourth light diffusion part is curvedly formed.

12 . The display module as claimed in claim 11 , wherein the fourth light diffusion part is concavely or convexly formed.

13 . The display module as claimed in claim 1 , wherein the light diffusion agent in the coating unit contains at least one of is a waterproof agent, a silicon agent, or an antistatic agent.

14 . The display module as claimed in claim 1 , wherein the first light diffusion part is formed by pressing the coating solution using a mold before the coating solution is cured.

15 . A display apparatus comprising:
a plurality of display modules, each of the plurality of display modules comprising a plurality of light emitting device packages and a coating unit, the plurality of light emitting device packages being disposed on a circuit board and electrically coupled to the circuit board, and the coating unit coated with coating solution containing a light diffusion agent covers the plurality of light emitting device packages and fills in a gap between the plurality of light emitting device packages; and a controller configured to electrically couple the plurality of display modules and control the plurality of display modules, wherein the coating unit further comprises at least one first light diffusion part that is curvedly formed on a surface of the coating unit onto which light emitted from the plurality of light emitting device packages is incident.

16 . The display apparatus as claimed in claim 15 , wherein the display apparatus further comprises at least one convex lens as a second light diffusion part formed on a surface of the first light diffusion part.

17 . The display apparatus as claimed in claim 15 , wherein an amount of the light diffusion agent contained in a portion of the coating unit in which the first light diffusion part is formed is greater than an amount of the light diffusion agent contained in a remainder portion of the coating unit excluding the portion in which the first light diffusion part is formed.

18 . The display apparatus as claimed in claim 15 , wherein a light emitting device package of the plurality of light emitting device packages comprises a third light diffusion part that faces the first light diffusion part and diffuses the light emitted from the light emitting device package before the light reaches the surface of the coating unit.

19 . The display apparatus as claimed in claim 18 , wherein the light emitting device package further comprises at least one fourth light diffusion part disposed close to an edge of the third light diffusion part.

20 . The display apparatus as claimed in claim 19 , wherein the fourth light diffusion part is concavely or convexly formed.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Jae-Sang
• Park Jee-Su
• Lee Eun-Lai
• Lee Jae-Min
• Ha Tae-Hyeun
• Hyun Suk
• Kim Cheoul-Young
• Lee Seung-Jae

Classifications

• G09F9/30

  in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) · CPC title

• G02B5/0278

  used in transmission · CPC title

• G06F3/1446 Primary

  display composed of modules, e.g. video walls · CPC title

• G09G2300/026

  Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions · CPC title

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title