Filter and display apparatus having the same

Abstract

A display apparatus includes a display and a display filter, wherein the display filter includes a base film, a plurality of reflective elements, and a plurality of light absorbing elements, wherein each of the light absorbing elements corresponds to a reflective element.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:

FIG. 1A illustrates a cross-sectional view of a filter according to an embodiment of the present invention;

FIG. 1B illustrates a cross-sectional view of a filter according to another embodiment of the present invention;

FIG. 2 illustrates a cross-sectional view of a filter according to another embodiment of the present invention;

FIG. 3 illustrates an exploded perspective view of a display apparatus having a filter according to an embodiment of the present invention; and

FIG. 4 illustrates a cross-sectional view taken along a line IV-IV of FIG. 3.

Claims

1. A display apparatus, comprising: a display; anda display filter, wherein the display filter includes: a base film;a plurality of reflective elements; anda plurality of light absorbing elements, wherein each of the light absorbing elements corresponds to a reflective element.

2. The display apparatus as claimed in claim 1, wherein the display includes pixels of a predetermined size, each light absorbing element is paired with a reflective element, anda width of the pair corresponds to the predetermined size.

3. The display apparatus as claimed in claim 2, wherein adjacent pairs are separated by a gap and a size of the gap corresponds to the predetermined size.

4. The display apparatus as claimed in claim 3, wherein the display includes a plasma display panel having discharge cells of a predetermined width, each light absorbing element is paired with a reflective element, anda width of the pair corresponds to the predetermined width.

5. The display apparatus as claimed in claim 1, wherein the display filter is directly attached to the display.

6. A display filter, comprising: a base film;a plurality of reflective elements; anda plurality of light absorbing elements, wherein each of the light absorbing elements corresponds to a reflective element.

7. The filter as claimed in claim 6, wherein the light absorbing elements are black units.

8. The filter as claimed in claim 6, wherein each light absorbing element is paired with a reflective element such that the light absorbing element and the reflective element are stacked.

9. The filter as claimed in claim 8, wherein the stack has a width of about 10 μm to about 100 μm.

10. The filter as claimed in claim 8, wherein the stack has a height of about 50 μm to about 500 μm.

11. The filter as claimed in claim 8, wherein adjacent stacks are separated by a gap of about 50 μm to about 1000 μm.

12. The filter as claimed in claim 6, wherein the reflective elements have triangular or trapezoidal cross-sections.

13. The filter as claimed in claim 12, wherein the light absorbing elements have triangular or trapezoidal cross-sections.

14. The filter as claimed in claim 13, wherein the light absorbing elements have a side disposed at a predetermined angle with respect to a major surface of the base film, the angle being greater than or equal to about 45 degrees.

15. The filter as claimed in claim 13, wherein each light absorbing element is paired with a reflective element such that the light absorbing element and the reflective element form a diamond.

16. The filter as claimed in claim 13, wherein at least one of the reflective elements and the light absorbing elements has a trapezoidal cross-section, the trapezoidal cross-section has a narrower side and a wider side, anda ratio of a width of the narrower side to a width of the wider side is less than or equal to about 0.9.

17. The filter as claimed in claim 6, wherein the reflective elements are a metal containing at least one of Ag, Cu, Ni, and Cr.

18. The filter as claimed in claim 6, wherein the light absorbing elements are a ceramic material.

19. The filter as claimed in claim 6, wherein the light absorbing elements have a low brightness and chroma.

20. The filter as claimed in claim 6, wherein the base film includes a laminate of a first film and a second film, the plurality of reflective elements is disposed in the first film, andthe plurality of light absorbing elements is disposed in the second film.