LED backlight using discrete RGB phosphors
First Claim
1. A diode backlight apparatus comprising:
- a plurality of radiation emitting diodes, each emits radiation having a peak wavelength of about less than 430 nm, located on a back surface of a housing;
the housing having an opening;
a screen covering the opening, the screen includes a discrete pattern of phosphor coated red light emitting pixels, a second discrete pattern of phosphor coated blue light emitting pixels, and a third discrete pattern of phosphor coated green light emitting pixels;
a radiation regulating element proximate the screen; and
a diffuser proximate the diodes.
1 Assignment
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Accused Products
Abstract
An LED backlight apparatus includes a plurality of radiation emitting diodes, each diode emits radiation having a peak wavelength of about less than 430 nm. Each diode is located on a back surface of a housing. The housing may have an opening. A screen covers the opening and the screen includes a discrete pattern of phosphor coated red light emitting pixels, a second discrete pattern of phosphor coated green light emitting pixels, and a third discrete pattern of phosphor coated blue light emitting pixels. The emitted radiation may excite the phosphor coated pixels. The apparatus may also include a radiation regulating element proximate the screen and further include a diffuser proximate the diodes.
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Citations
24 Claims
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1. A diode backlight apparatus comprising:
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a plurality of radiation emitting diodes, each emits radiation having a peak wavelength of about less than 430 nm, located on a back surface of a housing; the housing having an opening; a screen covering the opening, the screen includes a discrete pattern of phosphor coated red light emitting pixels, a second discrete pattern of phosphor coated blue light emitting pixels, and a third discrete pattern of phosphor coated green light emitting pixels; a radiation regulating element proximate the screen; and a diffuser proximate the diodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A diode backlight apparatus comprising:
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a plurality of radiation emitting diodes, each diode emits radiation having a peak wavelength of about less than 430 nm, located on a back surface of a housing; the housing having a thickness of about five (5) inches or less and an opening; a screen covering the opening, the screen includes a discrete pattern of phosphor coated red light emitting pixels, a second discrete pattern of phosphor coated blue light emitting pixels, and a third discrete pattern of phosphor coated green light emitting pixels; a radiation regulating element proximate the screen, and a diffuser proximate the diodes.
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24. A LED backlight apparatus comprising:
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a plurality of LEDs, each LED having a peak wavelength of about less than 430 nm, located on a back surface of a housing; the housing having an opening; a screen covering the opening, the screen includes a discrete pattern of phosphor coated red light emitting pixels, a second discrete pattern of phosphor coated green light emitting pixels, and a third discrete pattern of phosphor coated blue light emitting pixels; and a radiation regulating element proximate the screen.
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Specification