Display filter and display apparatus including the same

Abstract

A display filter and a display apparatus including the display filter, which can increase a contrast ratio, increase brightness, and have a great electromagnetic (EM) radiation-shielding effect, are provided. The display filter includes: a filter base; and an external light-shielding layer formed on a surface of the filter base, wherein the external light-shielding layer includes a base substrate including a transparent resin and light-shielding patterns spaced apart on a surface of the base substrate at predetermined intervals, and including a conductive material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects and advantages of the present invention will become apparent and more readily appreciated from the following detailed description, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded perspective view illustrating a plasma display panel (PDP) apparatus according to an exemplary embodiment of the present invention;

FIG. 2 is a sectional view illustrating a PDP filter according to an exemplary embodiment of the present invention; and

FIG. 3 is a perspective view illustrating the external light-shielding layer of the PDP filter in FIG. 2.

Claims

1. A display filter comprising: a filter base; andan external light-shielding layer formed on a surface of the filter base, wherein the external light-shielding layer comprises a base substrate including a transparent resin and light-shielding patterns spaced apart on a surface of the base substrate at predetermined intervals, and including a conductive material.

2. The display filter of claim 1, wherein the filter base comprises an electromagnetic (EM) radiation-shielding layer including a multi-layered transparent conductive film formed by stacking a metal thin film and a transparent thin film having a high refractive index.

3. The display filter of claim 2, wherein the EM radiation-shielding layer comprises one to three multi-layered transparent conductive films being continuously stacked on each other.

4. The display filter of claim 3, wherein the EM radiation-shielding layer comprises a multi-layered structure where one to three multi-layered transparent conductive films are formed by continuously stacking a niobium oxide film and a silver thin film, and the niobium oxide film is formed on the multi-layered structure.

5. The display filter of claim 1, wherein the light-shielding pattern has a wedge-shaped black stripe form.

6. The display filter of claim 1, wherein the base substrate comprises at least one compound selected from the group consisting of terephthalate, acrylic, polycarbonate, urethane, acrylate, polyester, epoxy acrylate, and acrylate bromide.

7. The display filter of claim 1, wherein the light-shielding pattern comprises at least one material selected from the group consisting of metal, carbon, and a conductive polymeric material.

8. The display filter of claim 7, wherein the conductive polymeric material comprises at least one polymeric material selected from the group consisting of polythiophene, polypyrrole, polyaniline, poly(3,4-ethylenedioxythiophene), poly(3-alkylthiophene), polyisothianaphthene, poly(p-phenylenevinylene), poly(p-phenylene) and a derivative thereof.

9. The display filter of claim 8, wherein the polymeric material comprises at least one material selected from the group consisting of a carbon nanotube, metal powder, and metal oxide powder.

10. The display filter of claim 1 further comprising: an electrode pattern disposed at both ends of the light-shielding pattern to be substantially perpendicular to the light-shielding pattern, thereby connecting the light-shielding pattern.

11. The display filter of claim 10, wherein the electrode pattern comprises a conductive polymeric material.

12. The display filter of claim 1, wherein the filter base has at least one function from the group consisting of an EM radiation-shielding function, a color correction function, an antireflection function, and a near infrared (NI) radiation-shielding function.

13. The display filter of claim 1, wherein the filter base comprises a transparent substrate, the EM radiation-shielding layer formed on a surface of the transparent substrate, and a color correction layer and an antireflective layer formed on another surface of the transparent substrate.

14. A display apparatus comprising: the display filter of any one of claims 1 through 11.