US 7,922,357 B2 · External light shielding layer, filter for display apparatus and display apparatus having the same

Abstract

Disclosed are an external light-shielding layer for a display filter preventing occurrence of ghosting using a difference between refractive indexes of a base substrate and an external light-shielding part, and a display filter and display apparatus including the external light-shielding layer. The external light-shielding layer for the display filter comprises a base substrate made of a transparent resin; and at least one external light-shielding part arranged on a surface of the base substrate and filled with an external light-absorption material, wherein ny of a refractive index of the base substrate is less than or equal to nx of a refractive index of the external light-shielding part.

Claims14

Dependent claims

An external light-shielding layer for a display filter, comprising:

a base substrate made of a transparent resin;
and
at least one external light-shielding part arranged on a surface of the base substrate and filled with an external light-absorption material,
wherein ny of a refractive index of the base substrate is less than or equal to nx of a refractive index of the external light-shielding part.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/987,183Filed 28 Nov 2007

Priority

KR 10-2006-013222821 Dec 2006

Published

US 2008/0151555 A126 Jun 2008

Granted

12 Apr 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G02B 27/0018
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00: with means for preventing ghost images
H01J 11/12
AC-PDPs with at least one main electrode being out of contact with the plasma: with main electrodes provided on both sides of the discharge space
H01J 11/44
Vessels, containers or parts thereof, e.g. substrates: optical arrangements or shielding arrangements, e.g. filters, black matrices, light…
H01J 2211/444
Optical arrangements or shielding arrangements, e.g. filters or lenses: means for improving contrast or colour purity, e.g. black matrix or light…

External light shielding layer, filter for display apparatus and display apparatus having the same

Life of this patent

External light shielding layer, filter for display apparatus and display apparatus having the same

Life of this patent

Abstract

Claims14