With Reflector Or Additional Screen Patents (Class 359/449)
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Patent number: 12099287Abstract: A transparent projection screen and a manufacturing method. The transparent projection screen is for receiving projection light and transmitting ambient light and comprises a first substrate layer, a Fresnel structure layer, a surface diffusion layer, a nano metal plating layer, and a binding adhesive layer. The Fresnel structure layer is disposed on the first substrate layer and comprises a prism surface. The surface diffusion layer is disposed on a portion of the prism surface. The nano metal plating layer is disposed on the surface diffusion layer. The binding adhesive layer is disposed on the nano metal plating layer and fills and levels the prism surface. The projection light passes the first substrate layer and is incident on the prism surface and then reflected thereby. The ambient light passes the binding adhesive layer, the nano metal plating layer, the surface diffusion layer and the first substrate layer, and is emitted.Type: GrantFiled: August 19, 2022Date of Patent: September 24, 2024Assignee: APPOTRONICS CORPORATION LIMITEDInventors: Hongxiu Zhang, Zhiyi Lu, Lin Wang, Yi Li
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Patent number: 12094382Abstract: An electronic includes a substrate, a plurality of driving units, a first signal line and a second signal line. The substrate has a first side edge extending in a first extension direction and a second side edge extending in a second extension direction. The first side edge and the second side edge are curved in a normal direction of a projection surface of a top surface of the substrate. A curvature of the first side edge is greater than a curvature of the second side edge, and the curvature of the second side edge is not equal to zero. The driving units are disposed along the first side edge, the first signal line is electrically connected to one of the driving units, and a curvature of the first signal line is different from a curvature of the second signal line.Type: GrantFiled: April 18, 2023Date of Patent: September 17, 2024Assignee: InnoLux CorporationInventors: Yu-Chia Huang, Yuan-Lin Wu, Kuan-Feng Lee, Tsung-Han Tsai
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Patent number: 12048106Abstract: A display apparatus including a front surface display panel including a side part that has a first mounting surface that is tilted, and at least one terminal arranged in the first mounting surface; a side surface display panel having a second mounting surface that is tilted so as to correspond to the first mounting surface, and the side surface display panel including at least one terminal arranged in the second mounting surface, wherein the side surface display panel is connected to the side part of the front surface display panel with the first mounting surface and the second mounting surface facing each other, and the at least one terminal arranged in the first mounting surface is electronically connected to the at least one terminal arranged in the second mounting surface, respectively, to electronically connect the front surface display panel and the side surface display panel.Type: GrantFiled: May 16, 2022Date of Patent: July 23, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yonggu Do, Jisoo Kim, Jaehoo Park, Minhee Lee, Sangkyun Im
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Patent number: 11975557Abstract: An identification medium includes a first layer, and a second layer disposed thereon in a manner of overlapping with the first layer. The first layer is capable of reflecting one of clockwise circular polarized light and counterclockwise circular polarized light and allowing to pass therethrough the remaining circular polarized light. The second layer is capable of reflecting at least a portion of circular polarized light having the same rotation direction as that of the circular polarized light that the first layer reflects, and allowing to pass therethrough circular polarized light having an opposite rotation direction to that of the circular polarized light reflected by the first layer. A ratio (Ssf2/S2) of Ssf2 defined by the following formula (2) relative to S2 defined by the following formula (1) is more than 0.Type: GrantFiled: June 18, 2019Date of Patent: May 7, 2024Assignee: ZEON CORPORATIONInventor: Yasuhide Fujino
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Patent number: 11940721Abstract: A projection display device and a projection display equipment are provided. The projection display device includes a display screen body, a photosensitive device, and a control module. The control module is electrically connected to the display screen body, the photosensitive device outputs a photosensitive signal when sensing a projection light beam, and the control module is electrically connected to the photosensitive device to receive the photosensitive signal and to control a section on the display screen body corresponding to a projection position of the projection light beam to be converted from a transparent state to an opaque state according to the photosensitive signal.Type: GrantFiled: May 15, 2020Date of Patent: March 26, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Lei Wen, Zhiqing Shi, Miao Jiang, Jiangbo Yao, Lixuan Chen, Xin Zhang
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Patent number: 11942003Abstract: The visibility of the external scene from the inside of the transmissive transparent screen when the video image is not displayed and the visibility of the video image from the outside when the video image is displayed are satisfied. In a video image display system comprising a projection device 100 and a transmissive transparent screen 1 having a first surface and a second surface on the opposite side of the first surface, having a visible light transmittance of at least 5[%], and displaying video images projected from the projection device 100 installed on the first surface side, as video images visible to an observer on the second surface side, the following formula 1 is satisfied: ?1.5?ln(((B/A)/I)×G)?3.9??Formula 1 in the formula 1, A is the projection area [m2] of the projection device 100, B is the luminous flux [lm] projected onto A by the projection device 100, I is the ambient illuminance [lx] at the side of the second surface, and G is the screen gain of the transparent screen 1.Type: GrantFiled: January 24, 2022Date of Patent: March 26, 2024Assignee: AGC Inc.Inventors: Hideaki Hayashi, Yoshinori Iguchi, Yukihiro Tao
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Patent number: 11925233Abstract: As described above, one or more aspects of the present disclosure provide articles having structural color, and methods of making articles having structural color. The present disclosure provides for articles that exhibit structural colors through the use of an optical element, where structural colors are visible colors produced, at least in part, through optical effects. The optical element (e.g., a single layer reflector, a single layer filter, a multilayer reflector or a multilayer filter) can include the reflective layer(s), constituent layers, and an optional textured surface. The optical element has a minimum percent reflectance in a wavelength range within the wavelength range of about 380 to 625 nanometers. The optical element imparts a structural color that corresponds substantially to the range of wavelength range.Type: GrantFiled: July 23, 2020Date of Patent: March 12, 2024Assignee: NIKE, INC.Inventors: Jeremy Gantz, Yuanmin Wang
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Patent number: 11906891Abstract: A projection screen and a processing method therefor, wherein the projection screen comprises, in sequence from the incident side of projection light, a diffusion layer, a microlens array and a substrate. The inner side of the substrate is provided with a Fresnel microstructure, and part of the surface of the Fresnel microstructure is provided with a reflecting layer while the remaining part of the surface is a light absorbing layer. The microlens array is used for focusing the projection light on the reflecting layer. The reflecting layer is used for reflecting projection light back to the field of view of viewers. Ambient light is mostly absorbed by the light absorbing layer. The settings of the structure and dimension of the microlens array enable the projection light to be only incident onto the reflecting layer of the Fresnel microstructure and the ambient light to be mostly absorbed by the light absorbing layer.Type: GrantFiled: September 26, 2019Date of Patent: February 20, 2024Assignee: APPOTRONICS CORPORATION LIMITEDInventors: Lin Wang, Wei Sun, Jie Wang, Fei Hu, Yi Li
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Patent number: 11889884Abstract: As described above, one or more aspects of the present disclosure provide articles having structural color, and methods of making articles having structural color. The present disclosure provides for articles that exhibit structural colors through the use of an optical element, where structural colors are visible colors produced, at least in part, through optical effects. The optical element (e.g., a single layer reflector, a single layer filter, a multilayer reflector or a multilayer filter) can include the reflective layer(s), constituent layers, and an optional textured surface. The optical element has a minimum percent reflectance in a wavelength range within the wavelength range of about 380 to 625 nanometers. The optical element imparts a structural color that corresponds substantially to the range of wavelength range.Type: GrantFiled: July 23, 2020Date of Patent: February 6, 2024Assignee: NIKE, INC.Inventors: Jeremy Gantz, Yuanmin Wang
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Patent number: 11880125Abstract: An information display system having acute-angled diffusion characteristics configured to display an image to inside or outside of a space via a transparent projected member, the information display system including an image projection apparatus, a transparent sheet provided on an inner surface of a display region set on a part of the projected member; and a light direction changing unit that directs a direction of image light toward the transparent sheet of the display region, the image projection apparatus including an image light characteristic converting unit, and an image light control film that restricts an emission direction of the image light being provided on an upper surface of the image projection apparatus, so that the image light is not directly delivered to an observer and the image light reflected by the transparent sheet is recognized by the observer.Type: GrantFiled: May 26, 2020Date of Patent: January 23, 2024Assignee: MAXELL, LTD.Inventors: Koji Hirata, Toshinori Sugiyama, Koji Fujita, Eiji Takagi
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Aircraft cabinet comprising at least one flight-data display screen and at least one avionics module
Patent number: 11731781Abstract: A cabinet comprising at least one screen allowing display of data necessary for a flight-control of an aircraft connected to at least one avionics module for management of the data. The screen at least partially forms one of the sides of the cabinet and the module or modules are installed inside the cabinet. The cabinet has a base allowing the screen or screens to be placed at a desired height. As a result, a length of cable between screen and avionics modules is reduced to a minimum.Type: GrantFiled: March 10, 2020Date of Patent: August 22, 2023Assignee: Airbus Operations SASInventors: Bernard Guering, Romain Delahaye -
Patent number: 11657747Abstract: A display device includes a substrate, a gate line and a data line. The substrate includes a first side edge and a second side edge, a curvature of the first side edge is greater than a curvature of the second side edge, and the curvature of the second side edge is not equal to zero. The gate line and the data line are disposed on the substrate, and a curvature of the gate line is different from a curvature of the data line.Type: GrantFiled: July 12, 2021Date of Patent: May 23, 2023Assignee: InnoLux CorporationInventors: Yu-Chia Huang, Yuan-Lin Wu, Kuan-Feng Lee, Tsung-Han Tsai
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Patent number: 11656500Abstract: An optical device includes a light source and a polarization selective optical element. The polarization selective optical element includes a stack of a plurality of cholesteric liquid crystal layers. The plurality of cholesteric liquid crystal layers includes a first cholesteric liquid crystal layer with liquid crystal molecules arranged in a first helical configuration having a first pitch range for light of a first wavelength range and a second cholesteric liquid crystal layer with liquid crystal molecules arranged in a second helical configuration having a second pitch range for light of a second wavelength range. The second wavelength range is different from the first wavelength range.Type: GrantFiled: June 10, 2020Date of Patent: May 23, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Yuge Huang, Fenglin Peng, Lu Lu, Junren Wang
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Patent number: 11568525Abstract: A moiré image processing device is provided, including a light-transmitting film, a light sensor, and an image processor. The light-transmitting film includes a plurality of microlenses, and a light-incident surface and a light-exit surface, where the microlenses are disposed on the light-incident surface, the light-exit surface, or a combination thereof according to a distribution pattern. The light sensor includes a photosensitive surface, where the photosensitive surface faces the light-exit surface, there are a plurality of pixels on the photosensitive surface, and the pixels sense the microlenses to obtain a photosensitive image corresponding to the distribution pattern. The image processor is coupled to the light sensor, where the image processor performs, according to a virtual image and the photosensitive image, image processing of simulating a moiré effect to generate a moiré image, where the virtual image corresponds to the distribution pattern and is similar to the photosensitive image.Type: GrantFiled: December 7, 2020Date of Patent: January 31, 2023Assignee: inFilm Optoelectronic Inc.Inventor: Chih-Hsiung Lin
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Patent number: 11549650Abstract: A light emitting diode, LED, filament arrangement (100) is provided. The LED filament arrangement comprises at least one LED filament (120) which in turn comprises an array of a plurality of light emitting diodes (140), LEDs. The at least one LED filament extends along an axis, A. The LED filament arrangement further comprises at least one reflector element (200) which is configured to at least partially reflect the light emitted from the at least one LED filament during operation. The at least one reflector element has a spiral shape and is arranged at least partially around the at least one LED filament such that the at least one reflector element extends along the axis, A.Type: GrantFiled: January 14, 2020Date of Patent: January 10, 2023Assignee: Signify Holding B.V.Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet
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Patent number: 11527181Abstract: A system for simultaneously producing immersive visual effects on an inside of an enclosure and passive visual effects to be viewed from the outside of the enclosure. The enclosure includes a plurality of sidewalls each having a reflective inner surface facing one other. The system includes a digital video display positioned to direct digital video imagery through the semi-reflective sidewall and into the enclosure. Light of the digital video imagery reflects off the reflective inner surfaces of plurality of sidewalls, which allow a percentage of the light to leave the enclosure, making the visual effects observable from the outside. The light will continue this cycle of reflection and transmission, creating an observable infinity effect from the outside, and an entirely enclosed visual experience from the inside.Type: GrantFiled: March 19, 2021Date of Patent: December 13, 2022Inventor: David Ralph Cicirelli
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Patent number: 11521525Abstract: In one aspect, a method includes the step of A mobile projection system; the system comprising: a hermetically sealed base unit configured to be releasably attached to an automobile; a microprocessor configured to receive a plurality of projectable images from a remote server over a wireless network; and a remote server configured to store a plurality of selected images over a period of time; a projection means configured to project a selected image through a translucent lens.Type: GrantFiled: September 21, 2020Date of Patent: December 6, 2022Inventor: Gaurav Garg
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Patent number: 11510302Abstract: A light-emitting apparatus can reduce flicker and retain power efficiency. A method can include driving, by a light emitting element (LEE) driver circuit, first, second, and third LEEs using a pulse width modulation (PWM) driving scheme to generate light of a first color, the first, second, and third LEEs configured to emit different colors, alternating, by the LEE driver circuit, between driving the first, second, and third LEEs using a hybrid driving scheme and the PWM driving scheme, and after alternating between driving the first, second, and third LEEs in the hybrid and PWM driving schemes, driving, by the LEE driver circuit, the first, second, and third LEEs using the hybrid driving scheme.Type: GrantFiled: August 25, 2021Date of Patent: November 22, 2022Assignee: Lumileds LLCInventors: Yifeng Qiu, Alan Andrew McReynolds
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Patent number: 11480794Abstract: Aspects described herein include an optical arrangement that defines a field of view relative to an optical reference point. The optical arrangement comprises a reflective element arranged within the field of view, an off-axis, short-throw projector arranged outside the field of view, and a substantially transparent projection screen arranged within the field of view. The projection screen is configured to preferentially direct imagery projected by the off-axis, short-throw projector toward the reflective element, and to, after direction by the reflective element, transmit the imagery toward the optical reference point.Type: GrantFiled: February 4, 2020Date of Patent: October 25, 2022Assignee: Disney Enterprises, Inc.Inventors: Eric C. Haseltine, Quinn Yorklun Jen Smithwick
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Patent number: 11448801Abstract: An electronic device may have a housing surrounding an interior in which electrical components are mounted. A display may be mounted to housing structures in the device. The housing may have a rear wall. The display cover layer and rear wall of the housing may be formed from transparent glass layers. Coatings may be formed on inwardly facing surfaces of the transparent glass layers. A coating on a transparent glass layer may be formed from a thin-film interference filter having a stack of dielectric layers. The coating may include an ink layer on the thin-film interference filter. The transparent glass layers may have one or more textured surfaces that allow light at high angles to enter the transparent layers and reflect off the coatings at high angles, thereby adjusting optical properties of the coatings.Type: GrantFiled: April 14, 2020Date of Patent: September 20, 2022Assignee: Apple Inc.Inventors: James R. Wilson, Matthew S. Rogers
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Patent number: 11385459Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.Type: GrantFiled: September 4, 2020Date of Patent: July 12, 2022Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Min Seong Yi, Jae Wook Kang, Il Hun Seo, Yun Mo Chung, Mi Yeon Cho
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Patent number: 11328631Abstract: In various embodiments, the present invention is directed to an interior-light-utilizing display obtained by laminating a reflection structure and a light diffusion film, in which the light diffusion film has an internal structure including a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index in the film. The interior-light-utilizing display provides improved luminance and is capable of stably maintaining constant display characteristics even where the incident angle of the external light changes.Type: GrantFiled: January 10, 2019Date of Patent: May 10, 2022Assignee: LINTEC CorporationInventors: Kentaro Kusama, Tatsuki Kuramoto
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Patent number: 11016226Abstract: A variofocal display device includes an image source and a display. The image source is configured to project image light. The display includes a first optical diffuser and a second optical diffuser. The display is configured to receive the image light. The first diffuser is configured to diffuse the image light at the first optical diffuser when the image light has a first polarization, and to diffuse the image light at the second optical diffuser when the image light is configured has a second polarization different from the first polarization. A method of displaying images using a varifocal display device is also disclosed.Type: GrantFiled: December 13, 2019Date of Patent: May 25, 2021Assignee: Facebook Technologies, LLCInventors: Mengfei Wang, Gang Li, Lu Lu, Yunqi Li
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Patent number: 10663827Abstract: An object is to provide: a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The object is achieved by the transparent screen including: a dot array in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and a layer that is obtained by immobilizing a cholesteric liquid crystalline phase.Type: GrantFiled: October 24, 2018Date of Patent: May 26, 2020Assignee: FUJIFILM CorporationInventors: Yujiro Yanai, Akira Yamamoto, Michio Nagai
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Patent number: 10481304Abstract: According to various embodiments, there is provided a lens sheet including an array of lenses arranged parallel to each other. Each lens includes a light redirecting portion having a light incident surface and a light reflecting surface, and includes a light refracting portion. The light reflecting surface is slanted relative to the light incident surface and relative to a plane interfacing the light redirecting portion and the light refracting portion, such that light of a first view image and light of a second view image transmitted through the light incident surface into the lens are directed to a first region and a second region of the light reflecting surface respectively and are reflected to the light refracting portion by the light reflecting surface. The first region is next to the second region.Type: GrantFiled: June 27, 2017Date of Patent: November 19, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Chandra Suwandi Wijaya, Jovia Jia Zhen Lee
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Patent number: 10126475Abstract: The present invention relates to a polarized light emissive device comprising a plural of fluorescent semiconductor quantum rods, and to a preparation thereof. The invention further relates to a use of the polarized light emissive device in optical devices, and to an optical device comprising the polarized light emissive device.Type: GrantFiled: March 6, 2015Date of Patent: November 13, 2018Assignee: Merck Patent GmbHInventor: Masaki Hasegawa
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Patent number: 10063820Abstract: The invention pertains to a projection assembly comprising at least a first screen (14) and a second screen (10). The first screen (14) is at an angle with the second screen (10). The first screen (14) is adapted to reflect light projected onto it predominantly or exclusively in one or more angular ranges that do not intersect with the second screen (10). The invention also pertains to a method for projecting images with such a projection assembly, comprising projecting a first image with the first projector (16B) on the first screen (14), and projecting a second image with the second projector (16A) on the second screen (10).Type: GrantFiled: September 11, 2014Date of Patent: August 28, 2018Assignee: BARCO N.V.Inventors: Tom Bert, Bart Maximus, Claude Daniel Tydtgat
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Patent number: 10036884Abstract: A display including an electrowetting prism array is provided. The display includes: a light source, a 2-dimensional (2D) display for providing an image using light from the light source, a prism array in which a refractive power of one or more prisms of the prism array is adjustable in real time, and an optical element which increases a refraction of light transmitted therethrough. In the display, the optical element may be disposed in front of or behind the prism array. The optical element may be a convex lens, a Fresnel lens, a holographic optical element (HOE), a diffraction optical element (DOE), or a second electrowetting prism array. The convex lens may be a variable focus lens.Type: GrantFiled: September 19, 2013Date of Patent: July 31, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun-hee Kim, Hoon Song, Jung-mok Bae, Kyu-hwan Choi, Yoon-sun Choi, Yong-joo Kwon
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Patent number: 9977321Abstract: A three-dimensional screen structure is a three-dimensional screen structure on which image light projected from an image light source is incident. The three-dimensional screen structure includes particles and a bind unit. The particles are three-dimensionally disposed and capable of transmitting or reflecting the image light. The bind unit binds the particles.Type: GrantFiled: April 28, 2015Date of Patent: May 22, 2018Assignee: SONY CORPORATIONInventor: Tomomasa Mizuno
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Patent number: 9927690Abstract: A projection screen, adapted to receive an image beam, includes a transparent substrate, optical pillar structures, a light-scattering layer, Fresnel structures and a light-absorption layer. The transparent substrate has first surface and second surface opposing to each other. The optical pillar structures are located at the first surface, and between the light-scattering layer and the transparent substrate. Each optical pillar structure is arranged along the first direction. The Fresnel structures are located at the second surface, and disposed between the transparent substrate and the light-absorption layer. Each Fresnel structure has a reflective surface and a transmissive surface connected to the reflective surface. The image beam sequentially passes through the light-scattering layer, the optical pillar structures, the transparent substrate and travels to the reflective surfaces, and the image beam is reflected by the reflective surfaces and outputs from the projection screen.Type: GrantFiled: December 15, 2016Date of Patent: March 27, 2018Assignee: Coretronic CorporationInventors: Fang-Hsuan Su, Hung-Ta Chien, Fu-Chiang Hsu, Fu-Ming Chuang, Chi-Tang Hsieh
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Patent number: 9726967Abstract: Display media configured to receive projected content are described herein. In some instances, a display medium may be a non-powered object that a user may hold and move in different ways through a room or other environment. The display medium may be formed to fit into the user's hand and include elements that provide information to accurately project an image onto the display medium or to perform other actions.Type: GrantFiled: August 31, 2012Date of Patent: August 8, 2017Assignee: Amazon Technologies, Inc.Inventors: Beverly L. Harrison, Edward Dietz Crump, William Thomas Weatherford, Juli A. Satoh, Navid Poulad, Robert A. Yuan, Jon L. Lindskog, Christopher D. Coley
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Patent number: 9563114Abstract: A screen includes: a diffraction member and a scattering member. The diffraction member selectively diffracts image light and orients this light towards a viewer. In order for the image light to be scattered to a higher degree than ambient light that enters the scattering member on the side opposite of the viewer, the degree to which the scattering member scatters polarized light varies according to the polarization direction of the light. Thus, regardless of the positional relationship of the screen and a projector, which projects image light, it is possible to use a relatively simple industrial manufacturing process that can ensure the following to a satisfactory extent: brightness of the screen in the front direction, a wide viewing angle, and visual clarity through the screen.Type: GrantFiled: May 16, 2014Date of Patent: February 7, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Naru Usukura, Hiromi Katoh, Takafumi Shimatani
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Patent number: 9507985Abstract: An imaging scanner includes an illumination light source and a hybrid illumination lens. The hybrid illumination lens includes a first Fresnel surface facing the illumination light source and a second surface having a microlens array thereon. The first Fresnel surface is configured to direct light received from the illumination light source towards the second surface to generate illumination light towards a target object through the microlens array on the second surface.Type: GrantFiled: March 31, 2014Date of Patent: November 29, 2016Assignee: Symbol Technologies, LLCInventor: Caihua Chen
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Patent number: 9354500Abstract: A screen for displaying an image received from a projector includes an anisotropic base diffusion layer having a fine pattern; a lens layer formed on a rear surface of the anisotropic base diffusion layer; a reflection layer deposited on a rear surface of the lens layer; and a surface protection layer coupled with a front surface of the anisotropic base diffusion layer. The screen for a projector enables a viewer to view an image from a single focus projector inside a bright room, brightness to be uniformly distributed throughout the screen, and a desirable viewing angle to be obtained.Type: GrantFiled: November 6, 2013Date of Patent: May 31, 2016Assignee: LG ELECTRONICS INC.Inventors: Sungtae Kim, Seunggyu Lee, Youngsung Kim
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Patent number: 9291887Abstract: A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.Type: GrantFiled: March 6, 2015Date of Patent: March 22, 2016Assignee: PRYSM, INC.Inventor: Roger A. Hajjar
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Patent number: 9217915Abstract: A projection-type video display apparatus comprising: a transmission-type screen; a video projection unit configured to project an image displayed on a video display surface as an image light; a projection optic system configured to enlarge and project the image light projected from said video projection unit on a rear surface of said transmission-type screen; and a plane mirror, provided in a part of said projection optic system, configured to reflect the image light from said video projection unit, thereby to project it on said transmission-type screen, wherein said transmission-type screen, said video projection unit and said projection optic system are mounted on a base; said video projection unit builds up an oblique projection optic system; and said transmission-type screen and said plane mirror are disposed on said base, being perpendicularly fixed, independently, in parallel with each other, and on the rear surface of said transmission-type screen is attached a foldable back cover, detachably, so as tType: GrantFiled: September 30, 2010Date of Patent: December 22, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Koji Hirata, Toshihiko Matsuzawa, Tadashi Sato
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Patent number: 9030736Abstract: A reflection screen includes: a reflection layer provided on the back side and adapted to reflect light; and a surface shape layer provided on the reflection layer, at the image source side relative to the reflection screen, the surface shape layer having a plurality of unit optical shapes arrayed and deflecting image light toward the reflection layer side. The unit optical shape satisfies, in a section along the array direction of the unit optical shapes and orthogonal to a screen plane, the relationship of ?+2???>90°, where ? is an angle that a total reflection surface makes with a plane parallel to the screen plane, ? is an angle that an incidence surface makes with a normal direction to the screen plane, and ? is an angle that light incident on the incidence surface makes with the normal direction to the screen plane.Type: GrantFiled: August 15, 2013Date of Patent: May 12, 2015Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tetsuya Sadahiro, Kazunobu Ogawa
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Patent number: 8964292Abstract: An anisotropic projection screen accepts light projected at non-normal angles and redirects the light as high quality images along a viewing path that is near normal to the screen. This allows side projection of images in a manner that avoids the potential viewer obstruction of the projection path. The images may be projected onto the screen from any angle (e.g., sides, top, bottom, etc.) relative to the screen surface, and then redirected to the viewer who is viewing the screen essentially normal to the screen surface. The screen has arrays of passive elements that are oriented to collect and redirect light from one direction, while rejecting or absorbing light received from another direction.Type: GrantFiled: April 8, 2014Date of Patent: February 24, 2015Assignee: Rawles LLCInventors: Eric Gifford Marason, William Thomas Weatherford
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Publication number: 20150015785Abstract: A robotic mount is configured to move an entertainment element such as a video display, a video projector, a video projector screen or a staircase. The robotic mount is movable in multiple degrees of freedom, whereby the associated entertainment element is moveable in three-dimensional space. In one embodiment, a system of entertainment elements are made to move and operate in synchronicity with each other.Type: ApplicationFiled: September 30, 2014Publication date: January 15, 2015Inventor: Andrew Flessas
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Patent number: 8922888Abstract: A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV, where AV is substantially equal to AH. The symmetric optical diffuser includes an optically transparent first layer and a plurality of randomly arranged optically transparent beads partially embedded in the first layer leaving portions of the beads exposed. The optical construction also includes a specular reflector that reflects light that is not scattered by the symmetric optical diffuser. The specular reflector has a first average reflectance Ro in the visible at zero incident angle and a second average reflectance R60 in the visible at 60 degree incident angle. Ro/R60 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.Type: GrantFiled: November 19, 2010Date of Patent: December 30, 2014Assignee: 3M Innovative Properties CompanyInventors: Yufeng Liu, David T. Yust
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Patent number: 8902372Abstract: A display system includes a laser projector that projects light onto a the back of a screen, a sensor that detects light reflected from the back of the screen, a processor in communication with the sensor, the processor controlling light projected from the laser projector based on data regarding the light detected from the sensor. The laser projector, sensor, and processor are all contained within a single housing.Type: GrantFiled: March 22, 2010Date of Patent: December 2, 2014Assignee: SuperlumenaryInventors: Robert Loney, Matthew Ward
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Publication number: 20140313579Abstract: The present disclosure describes a front projection system. The front projection system includes a light absorbing layer having an absorbance in a visible range of the electromagnetic spectrum of at least 80% and a light diffusing layer disposed on the light absorbing layer between the light absorbing layer and the projector. The light diffusing layer includes a plurality of metal flakes uniformly distributed in a host material, an average size of the plurality of metal flakes being in a range from about 0.5 microns to about 20 microns, at concentration of in a range from about 3% to about 30% by weight. A plurality of light absorbing particles uniformly distributed in the host material at a concentration of less than about 7% by weight, and a major front surface facing the projector having an average surface roughness in a range from about 0.5 microns to about 10 microns.Type: ApplicationFiled: December 10, 2012Publication date: October 23, 2014Inventors: Richard Y. Liu, Francis V. Loncar, JR., David J. Koch
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Patent number: 8837046Abstract: A projection screen includes a substrate having a projection area for a projection device to project an image onto the projection area. The projection area includes a plurality of arrayed optical regions, and each pixel of the image corresponding to the at least one optical region. Each of the optical regions includes a first optical sub-region and a second optical sub-region with different optical characteristics, such as reflective scattering, transmissive scattering, simple transmission or specular reflection. The above-mentioned projection screen with the optical characteristics of two or more, for example, can be at the same time as the front projection screen and the rear projection screen, or allows the user to watch background image behind the projection screen. A projection system including the above-mentioned projection screen is also disclosed.Type: GrantFiled: November 21, 2012Date of Patent: September 16, 2014Assignee: National Tsing Hua UniversityInventor: Cheng-Huan Chen
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Patent number: 8807775Abstract: An array-type display apparatus includes display devices each including a display section and a non-display area located around the display section, and transparent plates disposed on the viewer side. Each transparent plate has: a light exit-side deflection portion, provided in a position corresponding to the non-display area, for allowing at least part of light from the display section to exit the transparent plate in the front direction of the display section; and corner deflection portions, provided at the corners of the viewer-side surface, for allowing at least part of light that has passed through the transparent plate to exit it in the front direction. The width of the light exit-side deflection portion is larger than the width of the non-display area.Type: GrantFiled: November 15, 2013Date of Patent: August 19, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroshi Sekiguchi, Masahiro Goto, Katsunori Takahashi
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Patent number: 8780444Abstract: A screen in which observation distance may be adjusted while maintaining image brightness and a projection system using the screen. In a light control layer of a screen, a first angle region that determines a diffusion distribution of a reflected light is different according to the screen position in a control direction in which light diffusion control is performed. Accordingly, a diffusion distribution of image light emitted from a screen surface is adjusted to be tilted downward by an upper end and upward by a lower end according to the screen position. Thus, for example, a size of a diffused angle range is maintained to be 30°, and a direction in which the image light is diffusion-emitted corresponds to an assumed position of an observer. The projection image can be observed while maintaining brightness of an image and the observation distance L can be adjusted to be short.Type: GrantFiled: September 14, 2012Date of Patent: July 15, 2014Assignees: Seiko Epson Corporation, Tohoku UniversityInventors: Osamu Arakawa, Hiroyuki Shindo, Toshiaki Hashizume, Tatsuo Uchida, Yoshito Suzuki, Baku Katagiri
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Publication number: 20140176910Abstract: An autostereoscopic projection screen including a projection area and a control, wherein the projection area includes micromirrors, wherein the control is adapted to adjust orientation of the micromirrors such that the micromirrors can reflect light emitted by an image source into directions creating an image in each direction at a viewing distance such that each image can only be seen by one eye of a viewer located in said direction at said viewing distance, and wherein two images are created at a first viewing distance and spaced apart such that a viewer in the first viewing distance can see one of the two images with a first eye only and the other of the two images with a second eye only, wherein the viewer has the impression of seeing the two images simultaneously. The invention further relates to a method and a system for autostereoscopic projection.Type: ApplicationFiled: December 9, 2013Publication date: June 26, 2014Inventors: Stefan Mahn, Christian Riedel, Wolfgang Fischer
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Publication number: 20140139914Abstract: Provided is a front reflection screen for a front projection display apparatus. The front reflection screen includes a reflection layer configured to reflect an incident light including an image light projected from a projector and an external light, and a tint layer disposed before the reflection layer and including light absorbing particles to block a portion of the incident light.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Jeong-ho NHO, Sung-tae KIM, Sang-hyun SOHN, Won-yong LEE, Yong-Dok CHA
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Patent number: 8711476Abstract: A screen includes a polarization layer having plural acicular particles provided with their major axes oriented nearly in the same direction on a substrate, and has polarization selectivity of reflecting light in one polarization direction and absorbing light in the other polarization direction of two polarization directions orthogonal to each other on a plane perpendicular to incident light.Type: GrantFiled: June 29, 2012Date of Patent: April 29, 2014Assignee: Seiko Epson CorporationInventor: Noriko Kenmochi
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Patent number: 8711475Abstract: A projection screen is provided, which includes a reflective layer having plural reflective patterns which are spaced apart from one another and each of which includes an image reflective surface having an inclination angle against a horizontal direction so as to guide an image light toward a front of the screen, and plural external light absorption layers absorbing external lights incident to the screen.Type: GrantFiled: April 16, 2012Date of Patent: April 29, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Wook-jae Jeon, Sang-hyun Sohn, Jeong-ho Nho
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Patent number: RE45258Abstract: In a projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source, the projection optical system includes first and second optical systems arranged along an optical path defining an upstream-downstream direction in the order described from upstream to downstream on the downstream side of the image display panel. The first optical system includes at least one dioptric system and has positive power. The second optical system includes at least one reflecting surface having power and has positive power. The image formed by the image display panel is formed as an intermediate image in the optical path, and the intermediate image is magnified and projected.Type: GrantFiled: April 11, 2013Date of Patent: November 25, 2014Assignee: Ricoh Company, Ltd.Inventors: Atsushi Takaura, Kazuhiro Fujita, Nobuo Sakuma