Multi-functional active matrix liquid crystal displays
First Claim
1. A direct view display, comprising:
- a backlight comprising a first and second set of spectral emitters operable to generate light; and
a light modulating panel operable to modulate the light;
wherein the first set of spectral emitters comprises;
a first spectral emitter selected from a pair of long band spectral emitters (R1, R2), a second spectral emitter selected from a pair of middle band spectral emitters (G1, G2), and a third spectral emitter selected from a pair of short band spectral emitters (B1, B2);
wherein the second set of spectral emitters comprises;
fourth, fifth, and sixth spectral emitters comprising a complementary selection of spectral emitters to those selected for the first set of spectral emitters.
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Accused Products
Abstract
A direct view display provides a light modulating panel and a backlight including first and second sets of spectral emitters. The first set of spectral emitters generate a first light bundle and the second set of spectral emitters generate a second light bundle. Several modes of operation may be provided including (1) an advanced 2D mode, (2) an enhanced color gamut mode employing simultaneous illumination of the first and second set of spectral emitters, (3) a privacy screen mode, (4) a channel multiplexed mode, and (5) a stereoscopic image mode. The latter three modes utilize the first and second set of spectral emitters to alternately illuminate a portion of the light modulating panel. Images and representations generated by the direct view display operating in the latter three modes are viewed using appropriate eyewear having filters with passband characteristics to transmit the respective light bundle.
128 Citations
39 Claims
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1. A direct view display, comprising:
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a backlight comprising a first and second set of spectral emitters operable to generate light; and
a light modulating panel operable to modulate the light;
wherein the first set of spectral emitters comprises;
a first spectral emitter selected from a pair of long band spectral emitters (R1, R2), a second spectral emitter selected from a pair of middle band spectral emitters (G1, G2), and a third spectral emitter selected from a pair of short band spectral emitters (B1, B2);
wherein the second set of spectral emitters comprises;
fourth, fifth, and sixth spectral emitters comprising a complementary selection of spectral emitters to those selected for the first set of spectral emitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A backlight comprising a first and second set of spectral emitters operable to generate light, wherein the first set of spectral emitters comprises:
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a first spectral emitter selected from a pair of long band spectral emitters (R1, R2), a second spectral emitter selected from a pair of middle band spectral emitters (G1, G2), and a third spectral emitter selected from a pair of short band spectral emitters (B1, B2);
wherein the second set of spectral emitters comprises;
fourth, fifth, and sixth spectral emitters comprising a complementary selection of spectral emitters to those selected for the first set of spectral emitters, wherein the R1 and R2 transmission ranges lie substantially within the sensitive wavelengths of the L-cone receptors in a human eye, wherein the G1 and G2 transmission ranges lie substantially within the sensitive wavelengths of the M-cone receptors in the human eye, and wherein the B1 and B2 transmission ranges lie substantially within the sensitive wavelengths of the S-cone receptors in the human eye.
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20. A method for displaying images on a direct-view display, the method comprising:
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generating a first light bundle from a direct-view display backlight using a first set of spectral emitters; and
generating a second light bundle from the direct-view display backlight using a second set of spectral emitters, wherein the first set of spectral emitters comprises;
a first spectral emitter selected from a pair of long band spectral emitters (R1, R2), a second spectral emitter selected from a pair of middle band spectral emitters (G1, G2), and a third spectral emitter selected from a pair of short band spectral emitters (B1, B2);
wherein the second set of spectral emitters comprises;
fourth, fifth, and sixth spectral emitters comprising a complementary selection of spectral emitters to those selected for the first set of spectral emitters. - View Dependent Claims (21)
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22. A method for displaying a dual-image representation on a direct view display, the direct view display including a backlight having a first and second set of spectral emitters, and a light modulating panel, the method comprising:
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temporally alternating illumination between the first set of spectral emitters and the second set of spectral emitters on a portion of the light modulating panel, wherein the first set of spectral emitters do not provide illumination to the portion of the light modulating panel when the second set of spectral emitters are illuminating thereon, and wherein the second set of spectral emitters do not provide illumination to the portion of the light modulating panel when the first set of spectral emitters are illuminating thereon. - View Dependent Claims (23, 24)
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25. A method for displaying an image in a direct-view display having a plurality of illumination regions, the direct-view display having a backlight with first and second sets of spectral emitters each operable to illuminate more than one of the plurality of illumination regions, the direct-view display further having a light modulating panel located between the backlight and a viewing position, the method comprising:
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deactivating first and second sets of spectral emitters in a first illumination region associated with a first region of a light modulating panel;
addressing at least one pixel in the first region of the light modulating panel;
activating illumination in the first illumination region of at least one set of first and second set spectral emitters;
deactivating first and second set spectral emitters in a second illumination region associated with a second region of a light modulating panel;
addressing at least one pixel in the second region of the light modulating panel; and
activating illumination in the second illumination region of at least one set of first and second set spectral emitters. - View Dependent Claims (26, 27)
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28. Eyewear operable to convey a first image to a first eye and a second image to a second eye, the first image comprising a first polarized light bundle, the second image comprising a second polarized light bundle, wherein the first and second polarized light bundles comprise substantially discrete spectral components, the eyewear comprising:
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a first filter comprising a first retarder stack and a first polarizer, the first polarizer having a first polarizing axis; and
a second filter comprising a second retarder stack and a second polarizer, the second polarizer having a second polarizing axis substantially orthogonal to the first polarizing axis, wherein the first and second retarder stacks comprise identical retardance. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. Eyewear operable to convey a first image to a viewer and to block a second image from the viewer, the first image comprising a first polarized light bundle, the second image comprising a second polarized light bundle, wherein the first and second polarized light bundles comprise substantially discrete spectral components, the eyewear comprising:
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a left eye and a right eye filter, each filter comprising;
a retarder stack; and
one and only one polarizing element having a polarization axis, wherein the first and second retarder stacks comprise identical retardance, wherein the polarization axis of the left eye polarizing element is parallel to the polarizing axis of the right eye polarizing element. - View Dependent Claims (36, 37, 38, 39)
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Specification