Patents by Inventor Andrii Varanytsia
Andrii Varanytsia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240094580Abstract: A backlight includes a substrate, a plurality of light sources, a reflective layer, a first diffuser plate, a second diffuser plate, and a color conversion layer. The plurality of light sources are proximate the substrate. The reflective layer is proximate the substrate. The first diffuser plate is over the plurality of light sources. The color conversion layer is between the first diffuser plate and the second diffuser plate.Type: ApplicationFiled: January 26, 2022Publication date: March 21, 2024Inventors: Kirk Richard Allen, Songfeng Han, Xiang-Dong Mi, Andrii Varanytsia
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Patent number: 11927791Abstract: A backlight includes a substrate, a plurality of light sources proximate the substrate, a first reflective layer on the substrate, and a plurality of patterned reflectors over the plurality of light sources. Each light source includes a size measured in a plane parallel to the substrate. Each patterned reflector is aligned with a corresponding light source and includes a thickness profile. The thickness profile includes a substantially flat section and a curved section extending from and surrounding the substantially flat section. The substantially flat section varies in thickness by no more than plus or minus 20 percent of an average thickness of the substantially flat section. The substantially flat section includes a size in a plane parallel to the substrate equal to or greater than the size of each light source.Type: GrantFiled: February 2, 2021Date of Patent: March 12, 2024Assignee: CORNING INCORPORATEDInventors: Kirk Richard Allen, David Lynn Baker, Songfeng Han, Dmitri Vladislavovich Kuksenkov, Pamela Arlene Maurey, Xiang-Dong Mi, Timothy James Orsley, Andrii Varanytsia
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Publication number: 20230236449Abstract: Disclosed are liquid crystal devices including at least two liquid crystal layers, at least one interstitial substrate separating the liquid crystal layers, and at least two alignment layers disposed on opposing surfaces of the interstitial substrate. Also disclosed are liquid crystal windows incorporating said liquid crystal devices.Type: ApplicationFiled: April 16, 2021Publication date: July 27, 2023Inventors: Mingqian He, Andrii Varanytsia
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Publication number: 20230236457Abstract: Disclosed are methods for manufacturing liquid crystal devices including at least two liquid crystal layers and at least one interstitial substrate separating the liquid crystal layers. Methods for processing, assembling, and singulating liquid crystal devices are also disclosed.Type: ApplicationFiled: April 16, 2021Publication date: July 27, 2023Inventors: Thomas Bertin-Mourot, Douglas Llewellyn Butler, Mingqian He, Andrii Varanytsia, Yu-Chieh Wang
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Patent number: 11709397Abstract: A backlight includes a substrate, a plurality of light sources, a reflective layer, a light guide plate, a pattern of light extractors, a plurality of patterned reflectors, and a diffusive layer. The plurality of light sources are proximate the substrate. The reflective layer is on the substrate. The light guide plate is proximate the plurality of light sources. The pattern of light extractors is on the light guide plate. The plurality of patterned reflectors are on the light guide plate. Each patterned reflector is aligned with a corresponding light source. The diffusive layer is on the light guide plate.Type: GrantFiled: November 5, 2019Date of Patent: July 25, 2023Assignee: Corning IncorporatedInventors: Kirk Richard Allen, Fedor Dmitrievich Kiselev, Dmitri Vladislavovich Kuksenkov, Christopher Michael Lynn, Pamela Arlene Maurey, Xiang-Dong Mi, Scott Christopher Pollard, Nikolay Timofeyevich Timofeev, Andrii Varanytsia
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Publication number: 20230229042Abstract: Disclosed are liquid crystal devices comprising multiple interdigitated electrodes and at least one liquid crystal layer. Also disclosed are liquid crystal devices comprising at least three interdigitated electrodes.Type: ApplicationFiled: June 25, 2021Publication date: July 20, 2023Inventors: Douglas Llewellyn Butler, Andrii Varanytsia
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Publication number: 20230168541Abstract: A backlight includes a substrate, a plurality of light sources, a reflective layer, a first diffuser plate, a second diffuser plate, and a color conversion layer. The plurality of light sources are proximate the substrate. The reflective layer is proximate the substrate. The first diffuser plate is over the plurality of light sources. The color conversion layer is between the first diffuser plate and the second diffuser plate.Type: ApplicationFiled: April 14, 2021Publication date: June 1, 2023Inventors: Kirk Richard Allen, Songfeng Han, Pamela Arlene Maurey, Xiang-Dong Mi, Andrii Varanytsia
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Publication number: 20230142417Abstract: Display devices are disclosed including tiled components. The tiled components can include any one or more of tiled light board assemblies, tiled diffusers, and tiles patterned light guides. In some embodiments, entire backlight units may be tiled.Type: ApplicationFiled: April 14, 2021Publication date: May 11, 2023Inventors: Kirk Richard Allen, Guanglei Du, Tomohiro Ishikawa, Mark Francis Krol, Dmitri Vladislavovich Kuksenkov, Shenping Li, Ying Li, Xiang-Dong Mi, Horst Herbert Anton Schreiber, Andrii Varanytsia
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Publication number: 20230148148Abstract: Disclosed are liquid crystal devices including at least two liquid crystal layers, at least one interstitial substrate separating the liquid crystal layers, and at least two alignment layers disposed on opposing surfaces of the interstitial substrate. Also disclosed are liquid crystal windows incorporating said liquid crystal devices.Type: ApplicationFiled: April 16, 2021Publication date: May 11, 2023Inventors: Douglas Llewellyn Butler, Mingqian He, Andrii Varanytsia
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Publication number: 20230124292Abstract: A backlight includes a substrate, a plurality of light sources proximate the substrate, a first reflective layer on the substrate, and a plurality of patterned reflectors over the plurality of light sources. Each light source includes a size measured in a plane parallel to the substrate. Each patterned reflector is aligned with a corresponding light source and includes a thickness profile. The thickness profile includes a substantially flat section and a curved section extending from and surrounding the substantially flat section. The substantially flat section varies in thickness by no more than plus or minus 20 percent of an average thickness of the substantially flat section. The substantially flat section includes a size in a plane parallel to the substrate equal to or greater than the size of each light source.Type: ApplicationFiled: February 2, 2021Publication date: April 20, 2023Inventors: Kirk Richard Allen, David Lynn Baker, Songfeng Han, Dmitri Vladislavovich Kuksenkov, Pamela Arlene Maurey, Xiang-Dong Mi, Timothy James Orsley, Andrii Varanytsia
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Patent number: 11444427Abstract: A lasing device includes an active layer comprising a cholesteric liquid crystal material and a laser dye, and a liquid crystal cell including spaced apart substrates defining a cell gap in which the active layer is disposed. The substrates include electrodes arranged to bias the active layer into an oblique helicoidal (ChOH) state. At least one substrate of the liquid crystal cell is optically transparent for a lasing wavelength range of the device.Type: GrantFiled: November 15, 2016Date of Patent: September 13, 2022Assignees: Kent State University, The University Court of the University of AberdeenInventors: Jie Xiang, Andrii Varanytsia, Fred Minkowski, Oleg D. Lavrentovich, Peter Palffy-Muhoray, Corrie T. Imrie, Daniel E. Paterson, John M. Storey
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Patent number: 11221538Abstract: Liquid crystal lenses of different apertures with suppressed chromatic aberration utilizing twisted vertical alignment configuration are demonstrated. A plurality of substrates are provided with electrodes, including a patterned electrode to generate a lens effect. The liquid crystal material is homeotropically aligned, such as via alignment layers. Setting the ratio between cell thickness and chiral pitch of the cholesteric liquid crystals provides correction of axial chromatic aberrations of electrically-tunable focal lengths in the device.Type: GrantFiled: May 18, 2018Date of Patent: January 11, 2022Assignee: KENT STATE UNIVERSITYInventors: Liang-Chy Chien, Kai-Han Chang, Andrii Varanytsia
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Publication number: 20210397049Abstract: A backlight includes a substrate, a plurality of light sources, a reflective layer, a light guide plate, a pattern of light extractors, a plurality of patterned reflectors, and a diffusive layer. The plurality of light sources are proximate the substrate. The reflective layer is on the substrate. The light guide plate is proximate the plurality of light sources. The pattern of light extractors is on the light guide plate. The plurality of patterned reflectors are on the light guide plate. Each patterned reflector is aligned with a corresponding light source. The diffusive layer is on the light guide plate.Type: ApplicationFiled: November 5, 2019Publication date: December 23, 2021Inventors: Kirk Richard Allen, Fedor Dmitrievich Kiselev, Dmitri Vladislavovich Kuksenkov, Christopher Michael Lynn, Pamela Arlene Maurey, Xiang-Dong Mi, Scott Christopher Pollard, Nikolay Timofeyevich Timofeev, Andrii Varanytsia
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Publication number: 20180323570Abstract: A lasing device includes an active layer comprising a cholesteric liquid crystal material and a laser dye, and a liquid crystal cell including spaced apart substrates defining a cell gap in which the active layer is disposed. The substrates include electrodes arranged to bias the active layer into an oblique helicoidal (ChOH) state. At least one substrate of the liquid crystal cell is optically transparent for a lasing wavelength range of the device.Type: ApplicationFiled: November 15, 2016Publication date: November 8, 2018Applicant: Kent State UniversityInventors: Jie Xiang, Andrii Varanytsia, Fred Minkowski, Oleg D. Lavrentovich, Peter Palffy-Muhoray, Corrie T. Imrie, Daniel E. Paterson, John M. Storey
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Publication number: 20180059457Abstract: A bistable liquid crystal spatial light modulating (SLM) device (SLM) device utilizes the homeotropic and bubble domain texture change of a cholesteric liquid crystal that is responsive to external stimuli, such as electric voltage, light and pressure. The SLM device is configured to be switched between the two stable textures of the bubble domain texture or the fingerprint texture. In addition, the SLM device may be switched between transparent and light-scattering states by the application of an electric field, light irradiation or physical/mechanical pressure. The light transmission state and the light-scattering states of the present invention are also stable in time at zero voltage, and are reversible upon the application of an external field at a different voltage, frequency or wavelength of light.Type: ApplicationFiled: November 6, 2017Publication date: March 1, 2018Applicant: Kent State UniversityInventors: Liang-Chy Chien, Andrii Varanytsia
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Patent number: 9835923Abstract: A bistable liquid crystal spatial light modulating (SLM) device (SLM) device utilizes the homeotropic and bubble domain texture change of a cholesteric liquid crystal that is responsive to external stimuli, such as electric voltage, light and pressure. The SLM device is configured to be switched between the two stable textures of the bubble domain texture or the fingerprint texture. In addition, the SLM device may be switched between transparent and light-scattering states by the application of an electric field, light irradiation or physical/mechanical pressure. The light transmission state and the light-scattering states of the present invention are also stable in time at zero voltage, and are reversible upon the application of an external field at a different voltage, frequency or wavelength of light.Type: GrantFiled: July 21, 2015Date of Patent: December 5, 2017Assignee: Kent State UniversityInventors: Liang-Chy Chien, Andrii Varanytsia
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Publication number: 20170102577Abstract: Electro-optical devices utilizing alternative transparent conductive oxide (TCO) layers, such as aluminum zinc oxide (AZO) and gallium zinc oxide (GZO), and indium composites, are able to replace traditional indium-tin-oxide (ITO) TCOs. As a result, the electro-optical devices of the embodiments of the present invention are able to achieve high operating performance, including: high light transmittance, fast response times and low applied voltages, which are comparable to those of electro-optical devices using (ITO) coated substrates, while also being low-cost.Type: ApplicationFiled: October 10, 2016Publication date: April 13, 2017Applicant: Kent State UniversityInventors: Liang-Chy Chien, Libo Weng, Andrii Varanytsia
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Publication number: 20160018681Abstract: A bistable liquid crystal spatial light modulating (SLM) device (SLM) device utilizes the homeotropic and bubble domain texture change of a cholesteric liquid crystal that is responsive to external stimuli, such as electric voltage, light and pressure. The SLM device is configured to be switched between the two stable textures of the bubble domain texture or the fingerprint texture. In addition, the SLM device may be switched between transparent and light-scattering states by the application of an electric field, light irradiation or physical/mechanical pressure. The light transmission state and the light-scattering states of the present invention are also stable in time at zero voltage, and are reversible upon the application of an external field at a different voltage, frequency or wavelength of light.Type: ApplicationFiled: July 21, 2015Publication date: January 21, 2016Applicant: KENT STATE UNIVERSITYInventors: Liang-Chy Chien, Andrii Varanytsia