Wide color-gamut vehicle infotainment display system with quantum dot element
First Claim
1. A display device, comprising:
- a light source that includes a blue light-emitting diode (LED) configured to generate a blue output light;
a nanocrystal material that is disposed between the light source and a liquid crystal module, the nanocrystal material configured to;
receive the blue output light,convert a first portion of the blue output light to a green light emission,convert a second portion of the blue output light to a red light emission, andtransmit a remainder portion of the blue output light;
a liquid crystal module configured to receive the green light emission, the red light emission, and the remainder portion of the blue output light and generate an image that includes a portion of the green light emission, a portion of the red light emission, and a portion of the remainder portion of the blue output light; and
a light guide assembly, comprising;
a planar light guide optically coupled to a light-receiving surface of the liquid crystal module and configured to;
receive incident light traveling in a first direction, anddirect the incident light in a second direction toward the light-receiving surface of the liquid crystal module,wherein the nanocrystal material is disposed outside of a region defined between (i) a first plane defined by a front surface of the planar light guide, and (ii) a second plane defined by a rear surface of the planar light guide opposite the front surface; and
a curved light guide optically coupled to the planar light guide and configured to;
receive light traveling in a third direction from the light source, anddirect the light in the first direction toward the planar light guide,wherein the third direction is different than the first direction.
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Accused Products
Abstract
A display device includes a light source that includes a blue light-emitting diode (LED) configured to generate a blue output light; a nanocrystal material that is disposed between the light source and a liquid crystal module, and a light guide assembly. The nanocrystal material receives the blue output light, converts a first portion of the blue output light to a green light emission, converts a second portion of the blue output light to a red light emission, and transmits a remainder portion of the blue output light. The light guide assembly includes a planar light guide optically coupled to a light-receiving surface of the liquid crystal module and a curved light guide optically coupled to the planar light guide and configured to receive light from the light source and direct the light toward the planar light guide.
35 Citations
20 Claims
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1. A display device, comprising:
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a light source that includes a blue light-emitting diode (LED) configured to generate a blue output light; a nanocrystal material that is disposed between the light source and a liquid crystal module, the nanocrystal material configured to; receive the blue output light, convert a first portion of the blue output light to a green light emission, convert a second portion of the blue output light to a red light emission, and transmit a remainder portion of the blue output light; a liquid crystal module configured to receive the green light emission, the red light emission, and the remainder portion of the blue output light and generate an image that includes a portion of the green light emission, a portion of the red light emission, and a portion of the remainder portion of the blue output light; and a light guide assembly, comprising; a planar light guide optically coupled to a light-receiving surface of the liquid crystal module and configured to; receive incident light traveling in a first direction, and direct the incident light in a second direction toward the light-receiving surface of the liquid crystal module, wherein the nanocrystal material is disposed outside of a region defined between (i) a first plane defined by a front surface of the planar light guide, and (ii) a second plane defined by a rear surface of the planar light guide opposite the front surface; and a curved light guide optically coupled to the planar light guide and configured to; receive light traveling in a third direction from the light source, and direct the light in the first direction toward the planar light guide, wherein the third direction is different than the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle infotainment system, comprising:
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a processor configured to generate digital images; and a display device for displaying the digital images, the display device comprising; a light source that includes a blue light-emitting diode (LED) configured to generate a blue output light; a nanocrystal material that is disposed between the light source and a liquid crystal module, the nanocrystal material configured to; receive the blue output light, convert a first portion of the blue output light to a green light emission, convert a second portion of the blue output light to a red light emission, and transmit a remainder portion of the blue output light; a liquid crystal module configured to receive the green light emission, the red light emission, and the remainder portion of the blue output light and generate an image that includes a portion of the green light emission, a portion of the red light emission, and a portion of the remainder portion of the blue output light; and a light guide assembly comprising; a planar light guide optically coupled to a light-receiving surface of the liquid crystal module and configured to; receive incident light traveling in a first direction, and direct the incident light in a second direction toward the light-receiving surface of the liquid crystal module, wherein the nanocrystal material is disposed outside of a region defined between (i) a first plane defined by a front surface of the planar light guide, and (ii) a second plane defined by a rear surface of the planar light guide opposite the front surface; and a curved light guide optically coupled to the planar light guide and configured to; receive light traveling in a third direction from the light source, and direct the light in the first direction toward the planar light guide, wherein the third direction is different than the first direction. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A display device, comprising:
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a nanocrystal material that is disposed between a light source and a liquid crystal module, the nanocrystal material configured to; receive blue output light from the light source, wherein the light source is mounted on a first printed circuit board, convert a first portion of the blue output light to a green light emission, convert a second portion of the blue output light to a red light emission, and transmit a remainder portion of the blue output light; a liquid crystal module configured to receive the green light emission, the red light emission, and the remainder portion of the blue output light and generate an image that includes a portion of the green light emission, a portion of the red light emission, and a portion of the remainder portion of the blue output light; and a light guide assembly, comprising; a planar light guide optically coupled to a light-receiving surface of the liquid crystal module and configured to; receive incident light traveling in a first direction, and direct the incident light in a second direction toward the light-receiving surface of the liquid crystal module, wherein the nanocrystal material is disposed outside of a region defined between (i) a first plane defined by a front surface of the planar light guide, and (ii) a second plane defined by a rear surface of the planar light guide opposite the front surface; and a curved light guide optically coupled to the planar light guide and configured to; receive light traveling in a third direction from the light source, and direct the light in the first direction toward the planar light guide, wherein the third direction is different than the first direction. - View Dependent Claims (20)
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Specification