Display apparatus

Patent metadata

Field	Value
Publication number	US-11016393-B2
Application number	US-201916588274-A
Country	US
Kind code	B2
Filing date	Sep 30, 2019
Priority date	Nov 20, 2018
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

A display apparatus is provided. The display apparatus may include a display panel, an optical member that is disposed behind the display panel and that is configured to guide light to the display panel, a light source that is configured to irradiate light to the optical member, a holder that is configured to support the display panel and the optical member, and a contraction member that is disposed parallel to the optical member, and that comprises a negative thermal expansion (NTE) substance.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel;
an optical member that is disposed behind the display panel and that is configured to guide light to the display panel;
a light source that is configured to irradiate light to the optical member;
a holder that is configured to support the display panel and the optical member; and
a contraction member that is disposed parallel to the optical member on a side surface of the optical member, and that comprises a negative thermal expansion (NTE) substance,
wherein the optical member comprises a plurality of connection holes,
wherein the display apparatus further includes connection members that are configured to be inserted in the plurality of connection holes, that are directly connected to the contraction member, and that connect the optical member and the contraction member, and
wherein each connection member includes an insertion part that is configured to be inserted in a connection hole, and includes a connection part that is perpendicular to the insertion part, and that is configured to connect the contraction member and the insertion part.

2. The display apparatus of claim 1 , wherein the plurality of connection holes are formed at predetermined intervals in a corner area of the optical member.

3. The display apparatus of claim 2 , wherein:
a surface of the contraction member is affixed to the holder.

4. The display apparatus of claim 3 , wherein a separation space is formed between the contraction member and the optical member.

5. The display apparatus of claim 4 , wherein:
the optical member comprises a rectangular light guide plate,
the light source is disposed along a first side surface of the optical member, and
the contraction member is disposed along a second side surface of the optical member that is different from the first side surface.

6. The display apparatus of claim 5 , further comprising:
another contraction member that is disposed on a third side surface that opposes the second side surface.

7. The display apparatus of claim 6 , wherein:
the first side surface is a lower side surface of the optical member,
the second side surface is a left side surface of the optical member, and
the third side surface is a right side surface of the optical member.

8. The display apparatus of claim 7 , wherein the holder comprises an accommodation part that is configured to accommodate the contraction member.

9. The display apparatus of claim 8 , wherein:
the holder comprises:
a left side holder that is configured to support a left side portion of the optical member; and
a right side holder that is configured to support a right side portion of the optical member,
the contraction member is accommodated in the left side holder, and
the other contraction member is accommodated in the right side holder.

10. The display apparatus of claim 6 , wherein the plurality of connection holes are formed along the second side surface and the third side surface of the optical member.

11. The display apparatus of claim 10 , wherein the plurality of connection holes are formed only in respective upper areas of the second side surface and the third side surface of the optical member.

12. The display apparatus of claim 4 , wherein the optical member includes at least one of a light guide plate, a diffusion plate, a reflective sheet, a prism sheet, a protective sheet, a double brightness enhancement film (DBEF), and a color sheet.

13. The display apparatus of claim 4 , wherein:
the light source is disposed behind the optical member,
the display apparatus comprises a plurality of contraction members, and
the plurality of contraction members are respectively disposed along side surfaces of the optical member.

14. The display apparatus of claim 13 , wherein the optical member includes at least one among a diffusion plate, a reflective sheet, a prism sheet, a protective sheet, a double brightness enhancement film (DBEF), and a color sheet.

15. The display apparatus of claim 2 , wherein the connection members are comprised of a transparent material.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Yoonki
• Song Mijeong
• Prushinskiy Valeriy
• Baek Dohyeon
• Lee Seungjae
• Cho Byoungjin

Classifications

• G03F7/70875

  Temperature, e.g. temperature control of masks or workpieces via control of stage temperature · CPC title

• G02F1/133615

  Edge-illuminating devices, i.e. illuminating from the side · CPC title

• G03F7/70958

  Optical materials or coatings, e.g. with particular transmittance, reflectance or anti-reflection properties · CPC title

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• G03F7/70983

  Optical system protection, e.g. pellicles or removable covers for protection of mask · CPC title