Patents Assigned to QLIGHT NANOTECH LTD
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Patent number: 10268077Abstract: A polarized light source configured for use in display device and backlight unit is described. The polarized light source comprising: at least one optically active structure comprising a plurality of nanorods configured to emit light of one or more wavelengths in response to exciting pumping field, said plurality of nanorods comprising nanorods aligned with a predetermined alignment axis so as to produce a desired polarization direction of the emitted light; and a light directing assembly comprising one or more optical elements in optical path of light emitted from the light emitting structure, said light directing assembly being configured to enhance output of the emitted light from the emitting structure while substantially maintaining the polarization of the emitted light passing therethrough. Preferably, layers associated with the polarized light source are aligned with parallel principal axes.Type: GrantFiled: June 25, 2018Date of Patent: April 23, 2019Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Qlight Nanotech Ltd.Inventors: Uri Banin, Ehud Shaviv, Hagai Arbell
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Patent number: 10234726Abstract: A polarized light source configured for use in display device and backlight unit is described. The polarized light source comprising: at least one optically active structure comprising a plurality of nanorods configured to emit light of one or more wavelengths in response to exciting pumping field, said plurality of nanorods comprising nanorods aligned with a predetermined alignment axis so as to produce a desired polarization direction of the emitted light; and a light directing assembly comprising one or more optical elements in optical path of light emitted from the light emitting structure, said light directing assembly being configured to enhance output of the emitted light from the emitting structure while substantially maintaining the polarization of the emitted light passing therethrough. Preferably, layers associated with the polarized light source are aligned with parallel principal axes.Type: GrantFiled: June 25, 2018Date of Patent: March 19, 2019Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Qlight Nanotech Ltd.Inventors: Uri Banin, Ehud Shaviv, Hagai Arbell
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Patent number: 10160648Abstract: This invention generally relates to metal chalcogenide nanostructures, methods for their preparation and methods of use. A method is disclosed that transforms zinc chalcogenide nanowires into nanorods or quadrilateral nanostructures in an anneal step. Particular embodiments comprise ZnO nanostructures.Type: GrantFiled: July 1, 2014Date of Patent: December 25, 2018Assignees: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD., QLIGHT NANOTECH LTD.Inventors: Uri Banin, Guohua Jia
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Publication number: 20180348563Abstract: A polarized light source configured for use in display device and backlight unit is described. The polarized light source comprising: at least one optically active structure comprising a plurality of nanorods configured to emit light of one or more wavelengths in response to exciting pumping field, said plurality of nanorods comprising nanorods aligned with a predetermined alignment axis so as to produce a desired polarization direction of the emitted light; and a light directing assembly comprising one or more optical elements in optical path of light emitted from the light emitting structure, said light directing assembly being configured to enhance output of the emitted light from the emitting structure while substantially maintaining the polarization of the emitted light passing therethrough. Preferably, layers associated with the polarized light source are aligned with parallel principal axes.Type: ApplicationFiled: June 25, 2018Publication date: December 6, 2018Applicants: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Qlight Nanotech Ltd.Inventors: Uri BANIN, Ehud SHAVIV, Hagai ARBELL
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Patent number: 10036921Abstract: A polarized light source configured for use in display device and backlight unit is described. The polarized light source comprising: at least one optically active structure comprising a plurality of nanorods configured to emit light of one or more wavelengths in response to exciting pumping field, said plurality of nanorods comprising nanorods aligned with a predetermined alignment axis so as to produce a desired polarization direction of the emitted light; and a light directing assembly comprising one or more optical elements in optical path of light emitted from the light emitting structure, said light directing assembly being configured to enhance output of the emitted light from the emitting structure while substantially maintaining the polarization of the emitted light passing therethrough. Preferably, layers associated with the polarized light source are aligned with parallel principal axes.Type: GrantFiled: March 31, 2015Date of Patent: July 31, 2018Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Qlight Nanotech Ltd.Inventors: Uri Banin, Ehud Shaviv, Hagai Arbell
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Patent number: 10000699Abstract: Compositions of matter comprising a seeded semiconductor nanoparticle material and a non-quantum confined phosphor particle material for use in light conversion and light conversion layers comprising such compositions. In various embodiments, spherical core/shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are combined with a phosphor material to provide a composition of matter with small re-absorbance of the phosphor emission in both green and red wavelength regions and small re-absorbance of the SNP emission, In some embodiments, the SNPs or RSNPs are encapsulated in a first host material before being mixed with the phosphor particles. In various embodiments, a SNP/RSNP-phosphor mixture or encapsulated SNP/RSNP-phosphor mixture is incorporated in host matrix.Type: GrantFiled: April 4, 2016Date of Patent: June 19, 2018Assignees: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD, QLIGHT NANOTECH LTD.Inventors: Hagai Arbell, Assaf Aharoni, Uri Banin
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Publication number: 20180148637Abstract: The present invention relates to a novel class of seeded nanoparticles and uses thereof.Type: ApplicationFiled: May 24, 2016Publication date: May 31, 2018Applicants: QLIGHT NANOTECH LTD., YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM, LTD.Inventors: Uri BANIN, Itai LIEBERMAN, Shany NEYSHTADT, Lior YEDIDYA
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Patent number: 9868901Abstract: Optical conversion layers based on semiconductor nanoparticles for use in lighting devices, and lighting devices including same. In various embodiments, spherical core/shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are used to form conversion layers with superior combinations of high optical density (OD), low re-absorbance and small FRET. In some embodiments, the SNPs or RSNPs form conversion layers without a host matrix. In some embodiments, the SNPs or RSNPs are embedded in a host matrix such as polymers or silicone. The conversion layers can be made extremely thin, while exhibiting the superior combinations of optical properties. Lighting devices including SNP or RSNP-based conversion layers exhibit energetically efficient superior prescribed color emission.Type: GrantFiled: July 15, 2015Date of Patent: January 16, 2018Assignees: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD., QLIGHT NANOTECH LTD.Inventors: Hagai Arbell, Uri Banin
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Publication number: 20170307939Abstract: An optically active structure and a display device are presented. The device utilized an optically active structure comprising liquid crystal material and a plurality of nanorods configured to emit light in one or more predetermined ranges in response to pumping light. Variation in orientation of the liquid crystal varies orientation of the nanorods and modulated light emission therefrom.Type: ApplicationFiled: September 20, 2015Publication date: October 26, 2017Applicants: Yissum Research Development Company Of The Hebrew University of Jerusalem Ltd., QLight Nanotech Ltd., Merck Patent GmbHInventors: Uri BANIN, Hagai ARBELL, Bernhard RIEGER, Ming-Chou WU
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Publication number: 20170153007Abstract: The present invention provides an optically active structure and the use thereof in a backlight unit. The optically active structure comprises a plurality of optically active particles configured to emit light of one or more predetermined wavelength range in response to pumping energy, and a plurality of light scattering elements. The plurality of light scattering elements comprises optically transparent void regions, such as void regions surrounding filler particles.Type: ApplicationFiled: June 25, 2015Publication date: June 1, 2017Applicants: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD., QLIGHT NANOTECH LTD.Inventors: Uri BANIN, Ehud SHAVIV, Denis GLOZMAN, Hagai ARBELL
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Publication number: 20170031194Abstract: A polarized light source configured for use in display device and backlight unit is described. The polarized light source comprising: at least one optically active structure comprising a plurality of nanorods configured to emit light of one or more wavelengths in response to exciting pumping field, said plurality of nanorods comprising nanorods aligned with a predetermined alignment axis so as to produce a desired polarization direction of the emitted light; and a light directing assembly comprising one or more optical elements in optical path of light emitted from the light emitting structure, said light directing assembly being configured to enhance output of the emitted light from the emitting structure while substantially maintaining the polarization of the emitted light passing therethrough. Preferably, layers associated with the polarized light source are aligned with parallel principal axes.Type: ApplicationFiled: March 31, 2015Publication date: February 2, 2017Applicants: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Qlight Nanotech Ltd.Inventors: Uri BANIN, Ehud SHAVIV, Hagai ARBELL
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Patent number: 9557573Abstract: A light emitting device is presented. The device comprises an array of pixels and an electrode arrangement, wherein said array of pixels comprises pixels of first and second groups comprising first and second pluralities of light emitting nanorods aligned along first and second predetermined axes respectively, the axes being substantially perpendicular to each other, and the pixels of said array are associated with a plurality of electrode elements of said electrode arrangement thereby enabling modulation of optical emission of one or more pixels separately from one or more other pixels of said pixel array by controllable application of an electric field, the device being therefore configured and operable as an active pixel emitter.Type: GrantFiled: May 9, 2012Date of Patent: January 31, 2017Assignees: Merck Patent GmbH, Yissum Research Development Company of the Hebrew University of Jerusalem, Ltd., Qlight Nanotech, Ltd.Inventors: Volker Hilarius, Nadja Velesco, Uri Banin, Hagai Arbell, Serge Velesco
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Patent number: 9529228Abstract: An optically active structure (100) is provided, comprising at least two different groups (G1, G2) of optically active nanorods (104A, 104B). The groups of nanorods differ from one another in at least one of wavelength and polarization of light emitted thereby in response to pumping light. The nanorods of the same group are homogeneously aligned with a certain axis of alignment being substantially parallel or substantially perpendicular to an axis of alignment of the nanorods of at least one other group, such that the nanorods of said at least two groups have one or two axes of alignment. The optically active structure is used as color polarized light source for displays.Type: GrantFiled: November 6, 2011Date of Patent: December 27, 2016Assignees: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM, LTD., QLIGHT NANOTECH LTD.Inventors: Uri Banin, Hagai Arbell
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Publication number: 20160115027Abstract: This invention generally relates to metal chalcogenide nanostructures, methods for their preparation and methods of use. A method is disclosed that transforms zinc chalcogenide nanowires into nanorods or quadrilateral nanostructures in an anneal step. Particular embodiments comprise ZnO nanostructures.Type: ApplicationFiled: July 1, 2014Publication date: April 28, 2016Applicants: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD., QLIGHT NANOTECH LTDInventors: Uri BANIN, Guohua JIA