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US 8,227,972 B2Granted
Display filter and plasma display panel including the same
AssigneeSamsung SDI Co., Ltd.
InventorsYeon-Joo Choi, Cha-Won Hwang, Sang-Mi Lee, Seung-Goo Baek
Life of this patent
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Abstract
A display filter includes a base film disposed on a display panel. The base film includes a phototransmissive unit having a constant horizontal cross-sectional area, and a light absorbing unit which includes a light absorbing material and surrounds the phototransmissive unit. A plasma display panel (PDP) may include the display filter. The display filter may improve ambient contrast by increasing the transmittance of light emitted by a display panel and by blocking externally incident light.
Claims19
A display filter comprising:
- a base film disposed on a display panel, the base film comprising:
- a phototransmissive unit having a constant horizontal cross-sectional area;
- and
- a light absorbing unit which comprises a light, absorbing material and which surrounds the phototransmissive unit,
- with the horizontal cross-sectional area of the phototransmissive unit being constant from a first surface of the base film facing the display panel to a second surface positioned opposite to the first surface.
2 more elements
A plasma display panel (PDP) comprising:
- a first substrate and a second substrate that are disposed apart from each other;
- sustain electrodes extending between the first substrate and the second substrate in a direction;
- address electrodes extending between the first substrate and the second substrate in another direction which is different from the direction in which the sustain electrodes extend;
- barrier ribs defining a plurality of discharge cells between the first substrate and the second substrate;
- and
- a base film disposed on the first substrate, the base film comprising:
- a phototransmissive unit having a constant horizontal cross-sectional area;
- and
- a light absorbing unit which comprises a light absorbing material and surrounds the phototransmissive unit,
- with the horizontal cross-sectional area of the phototransmissive unit being constant from a first surface of the base film facing the display panel to a second surface positioned opposite to the first surface.
7 more elements
Dependencies are inferred from the claim text.