Display apparatus and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-11538958-B2
Application number	US-202016924374-A
Country	US
Kind code	B2
Filing date	Jul 9, 2020
Priority date	Aug 13, 2019
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A display apparatus and a manufacturing method thereof. The display apparatus includes a chassis, a plurality of modular displays disposed and tiled on the chassis, each of the plurality of modular displays including a plurality of light emitting diodes (LEDs) constituting each of a plurality of pixels, and a patterned molding layer formed on the each of the plurality of modular displays, wherein the patterned molding layer is formed to correspond to a boundary line between modular displays adjacent to each other among the plurality of modular displays.

First claim

What is claimed is:

1. A display apparatus comprising:
a chassis;
a plurality of modular displays disposed and tiled on the chassis, each of the plurality of modular displays comprising a plurality of light emitting diodes (LEDs) constituting each of a plurality of pixels;
a black matrix formed between the plurality of LEDs; and
a patterned molding layer formed on the each of the plurality of modular displays,
wherein the patterned molding layer is formed to correspond to a boundary line between modular displays adjacent to each other among the plurality of modular displays,
wherein the patterned molding layer comprises a plurality of molding-pieces,
wherein the plurality of molding-pieces are arranged to be distanced from one another,
wherein the patterned molding layer comprises a groove which is formed between the plurality of molding-pieces,
wherein the plurality of molding pieces are formed on a part of the black matrix such that a remaining part of the black matrix is exposed through the groove, and
wherein a width of the groove is equal to a width of the boundary line.

2. The display apparatus of claim 1 , wherein each of the plurality of molding-pieces is formed in an area corresponding to at least one pixel among the plurality of pixels.

3. The display apparatus of claim 1 , wherein a thickness of the plurality of molding-pieces is greater than or equal to a height of the plurality of LEDs.

4. The display apparatus of claim 1 , wherein the each of the plurality of modular displays is arranged so as to be tiled without a step difference between the plurality of modular displays adjacent to each other.

5. The display apparatus of claim 4 , wherein the plurality of modular displays are arranged on the chassis such that a first interval between a first set of pixels formed in each edge area of a first modular display and a second modular display that are adjacent to each other is equal to a second interval between a second set of pixels adjacent to each other and formed in any one modular display among the plurality of modular displays.

6. A manufacturing method of a display apparatus comprising a plurality of modular displays, wherein each of the plurality of modular displays comprises a plurality of light emitting diodes (LEDs) constituting each of a plurality of pixels, the method comprising:
arranging the plurality of modular displays on a chassis so as to be tiled; and
forming a patterned molding layer on the each of the plurality of modular displays, the patterned molding layer corresponding to a boundary line between modular displays adjacent to each other among the plurality of modular displays,
wherein the each of the plurality of modular displays comprises a black matrix formed between the plurality of LEDs,
wherein the forming the patterned molding layer comprises:
forming a molding layer on the plurality of modular displays; and
patterning the molding layer such that a plurality of molding-pieces are arranged to be distanced from one another, and
wherein the patterning the molding layer comprises patterning the molding layer such that a groove is formed between the plurality of molding-pieces, a part of the black matrix is exposed through the groove, and a width of the groove is equal to a width of the boundary line.

7. The manufacturing method of claim 6 , wherein the patterning the molding layer further comprises patterning the molding layer such that each of the plurality of molding-pieces is formed in an area corresponding to at least one pixel among the plurality of pixels.

8. The manufacturing method of claim 6 , wherein the patterning the molding layer further comprises patterning the molding layer such that the plurality of molding-pieces are formed to have a thickness greater than or equal to a height of the plurality of LEDs.

9. The manufacturing method of claim 6 , wherein the arranging the plurality of modular displays further comprises arranging the plurality of modular displays so as to be tiled without a step difference between the plurality of modular displays adjacent to each other.

10. The manufacturing method of claim 9 , wherein the arranging the plurality of modular displays further comprises arranging the plurality of modular displays on the chassis such that a first interval between a first set of pixels formed in each edge area of a first modular display and a second modular display that are adjacent to each other is equal to a second interval between a second set of pixels adjacent to each other and formed in any one modular display among the plurality of modular displays.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Hyunsun
• Han Seungryong

Classifications

• G09F9/3026 Primary

  Video wall, i.e. stackable semiconductor matrix display modules (video wall control systems G06F3/1446, G09G2300/026) · CPC title

• H10W90/00

  Package configurations · CPC title

• H01L33/005 Primary

  Electricity · mapped topic

• H01L25/0753

  Electricity · mapped topic

• H10H29/142

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title