Color conversion in LCD displays with silica nanoparticles
First Claim
1. A hybrid sol-gel precursor formulation comprising:
- an ESOR (epoxy silica ormosil) solution comprising TEOS (tetraethyl orthosilicate), at least one silane precursor other than TEOS, and GLYMO ((3-Glycidyloxypropyl) trimethoxysilane);
a DURS (diurethane siloxane) nanoparticles powder comprising silica nanoparticles and ethylene glycol, wherein the silica nanoparticles are maintained as nanoparticles in the formulation; and
a transition metal alkoxide matrix solution.
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Accused Products
Abstract
Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. For example, rhodamine-based fluorescent compounds are used in matrices produced by sol gel processes and/or UV (ultraviolet) curing processes which are configured to stabilize the compounds and extend their lifetime—to provide the required emission specifications of the color conversion films. Film integration and display configurations further enhance the display performance with color conversion films utilizing various color conversion elements.
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Citations
21 Claims
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1. A hybrid sol-gel precursor formulation comprising:
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an ESOR (epoxy silica ormosil) solution comprising TEOS (tetraethyl orthosilicate), at least one silane precursor other than TEOS, and GLYMO ((3-Glycidyloxypropyl) trimethoxysilane); a DURS (diurethane siloxane) nanoparticles powder comprising silica nanoparticles and ethylene glycol, wherein the silica nanoparticles are maintained as nanoparticles in the formulation; and a transition metal alkoxide matrix solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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preparing a hybrid sol-gel precursor formulation from; an ESOR (epoxy silica ormosil) solution comprising TEOS (tetraethyl orthosilicate), at least one silane precursor other than TEOS, and GLYMO ((3-Glycidyloxypropyl) trimethoxysilane); a DURS (diurethane siloxane) nanoparticles powder comprising silica nanoparticles and ethylene glycol, wherein the silica nanoparticles are maintained as nanoparticles in the formulation; and a transition metal alkoxide matrix solution, and mixing the hybrid sol-gel precursor with at least one RBF compound; and spreading the mixture and drying the spread mixture to form a film. - View Dependent Claims (15, 16, 17, 18)
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19. A formulation comprising:
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a hybrid sol-gel precursor formulation comprising; an ESOR (epoxy silica ormosil) solution comprising TEOS (tetraethyl orthosilicate), at least one silane precursor other than TEOS, and GLYMO ((3-Glycidyloxypropyl) trimethoxysilane); a DURS (diurethane siloxane) nanoparticles powder comprising silica nanoparticles and ethylene glycol, wherein the silica nanoparticles are maintained as nanoparticles in the formulation; and a transition metal alkoxide matrix solution; and a at least one rhodamine-based fluorescent (RBF) compound; wherein the at least one silane precursor, silica and transition metal alkoxide matrix are selected according to the RBF compound and may be tuned to receive a desired emission spectra. - View Dependent Claims (20, 21)
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Specification