Quantum-dot embedded polarizer component and display device using same
First Claim
1. A polarizer component comprising:
- a polarizing layer;
an optical film configured to receive an excitation light; and
a light re-emitting layer disposed between the polarizing layer and the optical film, wherein the light re-emitting layer comprises a plurality of light re-emitting cells, each cell comprising at least a first sub-cell, a second sub-cell and a third sub-cell, the first sub-cell comprising a first light re-emitting material configured to emit a first light component in a first wave-length range in response to the excitation light, the second sub-cell comprising a second light re-emitting material configured to emit a second light component in a second wave-length range in response to the excitation light, the third sub-cell configured to provide a third light component in response to the excitation light, the first re-emitting material comprising a first quantum dot material arranged to emit the first light component, the second re-emitting material comprising a second quantum dot material arranged to emit the second light component, wherein the excitation light comprises a third wavelength range, wherein the optical film and the light re-emitting layer are arranged such that the excitation light is provided to the light re-emitting layer through the optical film, and wherein the optical film comprises a wavelength selecting layer configured to reflect light in the first wavelength range and light in the second wavelength range and to transmit light in the third wavelength range.
1 Assignment
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Accused Products
Abstract
A polarizer component has an optical film to receive excitation light, a light re-emitting layer and a polarizing layer. The light re-emitting layer has quantum dots that re-emit red light and quantum dots that re-emit green light in response to the excitation light. The re-emitted red light is provided to a red sub-pixel to be filtered by a red color filter, and the re-emitting green light is provided to a green sub-pixel to be filtered by a green color filter. The excitation light can be blue or ultra violet and part of the excitation light is provided to a blue sub-pixel. The polarizing layer can be a reflective polarizing layer and the optical film can be a wavelength selecting layer. The light re-emitting layer may contain scattering particles to diffuse the excitation light provided to a blue sub-pixel.
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Citations
20 Claims
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1. A polarizer component comprising:
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a polarizing layer; an optical film configured to receive an excitation light; and a light re-emitting layer disposed between the polarizing layer and the optical film, wherein the light re-emitting layer comprises a plurality of light re-emitting cells, each cell comprising at least a first sub-cell, a second sub-cell and a third sub-cell, the first sub-cell comprising a first light re-emitting material configured to emit a first light component in a first wave-length range in response to the excitation light, the second sub-cell comprising a second light re-emitting material configured to emit a second light component in a second wave-length range in response to the excitation light, the third sub-cell configured to provide a third light component in response to the excitation light, the first re-emitting material comprising a first quantum dot material arranged to emit the first light component, the second re-emitting material comprising a second quantum dot material arranged to emit the second light component, wherein the excitation light comprises a third wavelength range, wherein the optical film and the light re-emitting layer are arranged such that the excitation light is provided to the light re-emitting layer through the optical film, and wherein the optical film comprises a wavelength selecting layer configured to reflect light in the first wavelength range and light in the second wavelength range and to transmit light in the third wavelength range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification