Photoluminescent liquid crystal display
First Claim
Patent Images
1. A photoluminescent liquid crystal display (“
- LCD”
) comprising;
a lower substrate and an upper substrate disposed apart from each other and opposite to each other;
a liquid crystal (“
LC”
) layer interposed between the lower and upper substrates;
a backlight unit disposed under the lower substrate and emitting blue (“
B”
) light;
a phosphor layer disposed on the upper substrate and excited by the B light traveling from the backlight unit through the LC layer and the upper substrate, the phosphor layer including a red (“
R”
) phosphor disposed in an R pixel region and a green (“
G”
) phosphor disposed in a G pixel region; and
a color filter layer disposed on the phosphor layer and limiting excitement of the R and G phosphors by ambient light, the color filter layer including an R filter disposed on the R phosphor and a G filter disposed on the G phosphor.
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Abstract
A photoluminescent liquid crystal display includes a lower substrate and an upper substrate disposed apart from each other opposite each other, a liquid crystal layer interposed between the lower and upper substrates, a backlight unit disposed under the lower substrate and emitting blue light, a phosphor layer disposed on the upper substrate and excited by the blue light and a color filter layer disposed on the phosphor layer and limiting excitement of the red and green phosphors by ambient light. The phosphor layer includes a red phosphor disposed in a red pixel region and a green phosphor disposed in a green pixel region. The color filter layer includes an R filter disposed on the red phosphor and a green filter disposed on the green phosphor.
39 Citations
19 Claims
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1. A photoluminescent liquid crystal display (“
- LCD”
) comprising;
a lower substrate and an upper substrate disposed apart from each other and opposite to each other;
a liquid crystal (“
LC”
) layer interposed between the lower and upper substrates;
a backlight unit disposed under the lower substrate and emitting blue (“
B”
) light;
a phosphor layer disposed on the upper substrate and excited by the B light traveling from the backlight unit through the LC layer and the upper substrate, the phosphor layer including a red (“
R”
) phosphor disposed in an R pixel region and a green (“
G”
) phosphor disposed in a G pixel region; and
a color filter layer disposed on the phosphor layer and limiting excitement of the R and G phosphors by ambient light, the color filter layer including an R filter disposed on the R phosphor and a G filter disposed on the G phosphor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- LCD”
-
10. A photoluminescent liquid crystal display (“
- LCD”
) comprising;
a lower substrate and an upper substrate disposed apart from each other and opposite to each other;
a liquid crystal (“
LC”
) layer interposed between the lower and upper substrates;
a backlight unit disposed under the lower substrate and emitting blue (“
B”
) light;
a phosphor layer disposed between the LC layer and the upper substrate and excited by the B light traveling from the backlight unit through the LC layer, the phosphor layer including a red (“
R”
) phosphor disposed in an R pixel region and a green (“
G”
) phosphor disposed in a G pixel region; and
a color filter layer disposed between the phosphor layer and the upper substrate and limiting excitement of the R and G phosphors by ambient light to emit light, the color filter layer including an R filter disposed on the R phosphor and a G filter disposed on the G phosphor. - View Dependent Claims (11, 12, 13, 14, 15, 16)
- LCD”
-
17. A photoluminescent liquid crystal display (“
- LCD”
) comprising;
a first substrate and a second substrate disposed apart from each other and opposite to each other;
a liquid crystal (“
LC”
) layer interposed between the first and second substrates;
a backlight unit disposed under the first substrate and emitting blue (“
B”
) light;
a phosphor layer disposed on the second substrate and excited by the B light traveling from the backlight unit through the LC layer, the phosphor layer including a red (“
R”
) phosphor disposed in an R pixel region and a green (“
G”
) phosphor disposed in a G pixel region;
a third substrate disposed on the second substrate; and
a color filter layer disposed on the phosphor layer and limiting excitement of the R and G phosphors by ambient light, the color filter layer including an R filter disposed on the R phosphor and a G filter disposed on the G phosphor. - View Dependent Claims (18, 19)
- LCD”
Specification
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Current AssigneeSamsung Electronics Co. Ltd.
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Original AssigneeSamsung Electronics Co. Ltd.
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InventorsKim, Byung-ki, Choi, Jae-young, Im, Seoung-jae, Zeng, Xiaoqing
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Application NumberUS11/497,041Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current349/71CPC Class CodesG02F 1/133514 Colour filtersG02F 1/133617 Illumination with ultraviol...
