Methods and apparatus for ultra-violet stimulated displays
First Claim
Patent Images
1. A display element for use in a display device, wherein the element comprises:
- a first light source that emits ultraviolet light;
a liquid crystal device having a plurality of independently controllable shutters;
a plurality of luminescent elements optically aligned with the plurality of shutters, wherein at least one of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light; and
a regulation circuit for regulating a power supply that supplies power to the light source, wherein the circuit is coupled to the power supply and the first light source.
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Abstract
A display element for use in a display device that exhibits extended illumination longevity and uniformity, as well as a wide viewing angle, is provided. The element can include a light source that emits ultraviolet light, a liquid crystal device having a plurality of independently controllable (i.e., addressable) shutters, a screening element between the light source and the liquid crystal device, a plurality of luminescent elements optically aligned with the shutters, and a regulated power supply. Display devices, calibration techniques, and power management methods are also provided.
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Citations
80 Claims
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1. A display element for use in a display device, wherein the element comprises:
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a first light source that emits ultraviolet light;
a liquid crystal device having a plurality of independently controllable shutters;
a plurality of luminescent elements optically aligned with the plurality of shutters, wherein at least one of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light; and
a regulation circuit for regulating a power supply that supplies power to the light source, wherein the circuit is coupled to the power supply and the first light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A display device comprising:
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a plurality of light sources that emits ultraviolet light;
a plurality of independently controllable shutters;
a plurality of luminescent elements optically aligned with each of the shutters, wherein at least one of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light; and
a regulated power supply for supplying power to the light source. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A calibration method for an electronic display device, wherein the display device comprises:
- a plurality of light sources that emits ultraviolet light, a plurality of independently controllable shutters, a plurality of luminescent elements optically aligned with the light source and each of the shutters, wherein each of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light, and a regulated power supply for supplying power to the light source, and wherein the method comprises;
supplying at least one known power level to at least one of the plurality of light sources;
measuring a light intensity that results from the supplying; and
adjusting the power supplied to the at least one of the plurality of light sources. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
- a plurality of light sources that emits ultraviolet light, a plurality of independently controllable shutters, a plurality of luminescent elements optically aligned with the light source and each of the shutters, wherein each of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light, and a regulated power supply for supplying power to the light source, and wherein the method comprises;
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66. A system permitting video or still image content to be displayed on selected ones of multiple electronic display devices at selected times according to system customers, wherein the system comprises:
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a network connected to a plurality of electronic display devices, wherein at least one of the devices comprises;
a plurality of light sources that emits ultraviolet light, a plurality of independently controllable shutters, a plurality of luminescent elements optically aligned with each of the shutters, wherein each of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light, and a regulated power supply for supplying power to the light source; and
at least one central information processing station comprising;
a customer interface permitting the system customers to access the system, means for permitting the system customers to review options concerning orders, means for permitting the system customers to place an order for display of visual content on at least one of the electronic display devices, and means for transmitting the content to the at least one of the electronic display devices. - View Dependent Claims (67, 68)
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69. A system for the distribution of movie content owned by content providers and for display of the movie content in digital movie theaters according to the dictates of movie theater operators who are system customers, wherein the system comprises:
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a network connected to a plurality of electronic movie display devices in movie theaters, wherein each of the devices comprises;
a plurality of light sources that emits ultraviolet light, a plurality of independently controllable shutters, a plurality of luminescent elements optically aligned with each of the shutters, wherein each of the luminescent elements absorbs at least some of the ultraviolet light and converts it to visible light, and a regulated power supply for supplying power to the light source; and
at least one central information processing station including;
a customer interface permitting system customers to access the system, means permitting a system customer to review movie content available in digital form to the customer, means permitting the customer to schedule and purchase movie content for display on at least one of the electronic movie display devices, and means for transmitting the movie content to the customer'"'"'s movie theater location. - View Dependent Claims (70)
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71. A method of managing power to an ultraviolet-stimulated display device, wherein the display device comprises:
- a plurality of light sources that emits ultraviolet light, a plurality of independently controllable shutters, a luminescent element optically aligned with each of the shutters, wherein the luminescent element absorbs at least some of the ultraviolet light and converts it to visible light; and
a regulated power supply for supplying power to the light source, the method comprising;
receiving information that at least identifies a set of luminescent elements;
determining a plurality of light sources that should be powered to illuminate the set of luminescent elements during a period of time; and
distributing power to the plurality of light sources during that period of time. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79, 80)
- a plurality of light sources that emits ultraviolet light, a plurality of independently controllable shutters, a luminescent element optically aligned with each of the shutters, wherein the luminescent element absorbs at least some of the ultraviolet light and converts it to visible light; and
Specification