Silicon compound and hard coating film and display device including the same

Patent metadata

Field	Value
Publication number	US-10698241-B2
Application number	US-201715823034-A
Country	US
Kind code	B2
Filing date	Nov 27, 2017
Priority date	Nov 28, 2016
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A liquid crystal display device includes a liquid crystal panel; and a backlight unit disposed at one side of the liquid crystal panel. The backlight unit includes a prism sheet, which comprises a base and a plurality of prism patterns arranged on the base and a binder and a silicon compound having adjacent siloxane moieties linked via a diselenide group, and a light source disposed at a lower portion of the prism sheet. In the liquid crystal display device, the prism sheet is disposed between the light source and the liquid crystal panel.

First claim

What is claimed is:

1. A silicon compound having adjacent siloxane moieties linked via a diselenide group, wherein the siloxane moieties are silsesquioxane moieties.

2. A silicon compound having adjacent siloxane moieties linked via a diselenide group, wherein the silicon compound has a unit structure represented by Chemical Formula 1,
A-(L 1 ) m -Se—Se-(L 2 ) n -B,  Chemical Formula 1)

wherein A and B each independently represent a siloxane moiety, L1 and L2 each independently represent a C1-C10 alkylene group, a C3-C20 cycloalkylene group, or a C5-C30 arylene group, and m and n are each independently 0 or 1, and
wherein at least one of A and B is a silsesquioxane moiety having a cage structure.

3. The silicon compound of claim 2 , wherein A is a silsesquioxane moiety having a random structure or a cage structure, and B is a silsesquioxane moiety having a cage structure.

4. A hard coating film comprising:
a binder; and
a silicon compound dispersed in the binder and having adjacent siloxane moieties linked via a diselenide group.

5. A display device comprising:
a display panel; and
the hard coating film according to claim 4 and disposed at one side of the display panel.

6. The display device of claim 5 , further comprising a touch panel disposed between the hard coating film and the display panel or disposed at another side of the display panel.

7. A prism sheet comprising:
a base; and
a plurality of prism patterns arranged on the base and comprising a binder and a silicon compound having adjacent siloxane moieties linked via a diselenide group.

8. A backlight unit comprising:
the prism sheet defined in claim 7 ; and
a light source disposed at a lower portion of the prism sheet.

9. The backlight unit of claim 8 , further comprising a light guide plate disposed at a lower portion of the prism sheet,
wherein the light source is disposed at one side of the light guide plate.

10. A liquid crystal display device comprising:
a liquid crystal panel; and
the backlight unit according to claim 8 and disposed at one side of the liquid crystal panel,
wherein the prism sheet is disposed between the light source and the liquid crystal panel.

Assignees

• Lg Display Co Ltd

Inventors

• Min Hye-Li
• Park Jae-Hyun
• Chun Chang-Woo

Classifications

• G02F1/1335

  Structural association of cells with optical devices, e.g. polarisers or reflectors · CPC title

• G02B6/0053

  Prismatic sheet or layer; Brightness enhancement element, sheet or layer · CPC title

• C08K5/5415

  containing at least one Si—O bond · CPC title

• C08K5/48

  Selenium- or tellurium-containing compounds · CPC title

• C07F7/21 Primary

  Cyclic compounds having at least one ring containing silicon, but no carbon in the ring · CPC title