Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8228603 | Screen and projector A screen includes a plurality of structures arrayed in parallel in at least one direction of a first direction and a second direction perpendicular to the first direction on a reference surface parallel to the first direction and the second direction. The structures... | 07/24/2012 |
| 7948679 | Screen and projector A screen includes a plurality of structures arrayed in parallel in at least one direction of a first direction and a second direction perpendicular to the first direction on a reference surface parallel to the first direction and the second direction. The structures... | 05/24/2011 |
| 7777949 | Laminate screen for a display device A rear projection display device is provided. In an embodiment, the display device includes a laminate screen including a microstructure lamina having a non-planar input surface, a substantially planar output surface and a first index of refraction. The laminate scr... | 08/17/2010 |
| 7746554 | Lenticular lens, light-diffusing sheet, and projection screen A lenticular lens comprises multiple convex unit lenses, two sides of each unit lens being curved surfaces gradually spreading outwardly from the upside (plane of emergence) to the base (plane of incidence) of the unit lens, and these unit lenses are disposed on a b... | 06/29/2010 |
| 7715098 | Projection screen having reduced ambient light scattering An apparatus and method for improving the contrast between incident projected light and ambient light reflected from a projection screen are described. The efficiency of the projection screen for reflection of the projected light remains high, while permitting the p... | 05/11/2010 |
| 7667893 | Microlens front projection screen A display screen is provided. The display screen may be configured to receive an image from a display device, and includes a first surface with a topography configured to transmit light from the image, and a second surface configured with light reflecting portions a... | 02/23/2010 |
| 7548369 | Projection-receiving surface comprising a single sheet formed into a plurality of catenoid-like mirrorlettes The present invention is a broadband projection-receiving surface that can function as a projection screen. This surface can, even in strong ambient light, provide high gain, prevent glare and speckle, provide high contrast, preserve of gray-scale linearity, provide... | 06/16/2009 |
| 7538942 | Light diffusing film and method of producing the same as well as screen A light diffusing film, a screen that utilizes same, and a method of producing same are provided. The light diffusing film provides a high luminance uniform over an overall area with a simple configuration and provides a good visibility. Also a method of prod... | 05/26/2009 |
| 7515337 | Screen, manufacturing method of screen, and projector A screen that transmits a light according to an image signal includes a flat surface, a plurality of light-guide portions arrayed on the flat surface, and a plurality of lens elements. The light-guide portions have a light incident side and an output side. The plura... | 04/07/2009 |
| 7477450 | Lenticular lens sheet and production method therefor A wide-viewing-angle lenticular lens sheet and a production method therefore. The lenticular lens sheet (1) comprises a plurality of lenticular lenses (11) disposed on one surface of a translucent substrate, and convex lenses (12) disposed on th... | 01/13/2009 |
| 7474463 | Diffusion sheet, rear projection screen provided with diffusion sheet, method of manufacturing mold for diffusion sheet, and method of manufacturing diffusion sheet In a diffusion sheet 101, a plurality of approximately trapezoidal columnar unit lens portions 11 are disposed such that the long-axis directions thereof are in parallel with each other, and all the surfaces of the unit lens portions, which correspond ... | 01/06/2009 |
| 7453637 | Projection type screen and image projection system A projection type screen comprises a reflection surface array and a lenticular sheet. In the reflection surface array, a plurality of reflection surfaces is located along a horizontal direction. Each reflection surface has a mirror reflectivity of which section alon... | 11/18/2008 |
| 7443592 | Visual effect apparatus for displaying interlaced images using block out grids A container for producing a graphical image. The container includes a container wall with front and rear portions. A label is included that extends about the circumference of the container with an inner surface contacting an exterior surface of the rear portion of t... | 10/28/2008 |
| 7433122 | Front-projection screen with subsurface diffusion targets An apparatus, system, and method for a front-projection screen having a subsurface diffusion target are disclosed herein. ... | 10/07/2008 |
| 7408707 | Multi-region light scattering element A multi-region light scattering element with the optical characteristics of low speckle, high resolution high contrast, and high gain when used as an imaging element without any resulting loss of transmission or brightness with viewing angle. The multi-region light ... | 08/05/2008 |
| 7403334 | Optical member and process of producing the same The present invention provides an optical member having excellent anti-reflection properties, capable of being produced inexpensively as compared with conventional optical members having anti-reflection properties and of being mass-produced with quality kept constan... | 07/22/2008 |
| 7399082 | Volumetric imaging using “virtual” lenslets A system constructs an image using virtual lenslets. ... | 07/15/2008 |
| 7374328 | Optical sheet, and backlight unit and display using the same In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing... | 05/20/2008 |
| 7375884 | Rear projection screen and optical device thereof A rear-projection screen comprises an optical unit, a light-blocking layer, and an optical lens. The optical unit has a first surface and a second surface. The first surface is opposite to the second surface. The first surface has a plurality of cylindrical convexes... | 05/20/2008 |
| 7369310 | Tensioned projection screen A projection screen apparatus is disclosed for displaying an image projected by a projector. The projection screen apparatus includes a frame and a screen. The frame includes a plurality of frame members and corner members. ... | 05/06/2008 |
| 7362503 | Screen, Fresnel lens sheet used for the same, and image display apparatus using the same The present invention provides a technology that makes it possible to display high-quality images by reducing a reflection loss of the image light entering the upper left and right ends of a transmissive screen. At the image generation source side of the Fresnel len... | 04/22/2008 |
| 7357512 | Color image projection system and method An image projection system projects an image on a projection screen having a phosphor for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The screen includes an apertured mask having apertur... | 04/15/2008 |
| 7359118 | Method for producing mold for use in duplicating light diffusion sheet, light diffusion sheet and method for producing the same, and screen A method of producing a mold for use in duplicating a light diffusion sheet is provided. The method includes a step of conducting sandblasting for blasting abrasive material from a blast gun to a surface of a mold base material to form unevenness in the surface of t... | 04/15/2008 |
| 7359128 | Supplementary lens for viewing a video or computer screen A device (5) for viewing a display screen (2), including a large-area visual medium (1) that can be placed in front of the display screen (2), characterised in that the visual medium (2) has a focal length f of at least 615 mm. The... | 04/15/2008 |
| 7356211 | Lighting system A stereoscopic display device is provided. The stereoscopic display device includes an optical waveguide member and a first main surface and a second main surface. The first and second main surfaces face each other. A first light path changing member is provided on ... | 04/08/2008 |
| 7352339 | Diffuse illumination systems and methods The systems and methods disclosed herein relate to sources of diffuse illumination for providing substantially uniform illumination to a surface. The diffuse illumination arises from varying the diffusion angle of light generated by an LED system. To vary the diffus... | 04/01/2008 |
| 7349159 | Mold for manufacturing a microlens substrate, a method of manufacturing microlens substrate, a microlens substrate, a transmission screen, and a rear projection A mold 6 for manufacturing a microlens substrate 1 is disclosed. The microlens substrate is provided with a plurality of microlenses each having a predetermined convex shape. The mold is used to press a base material of the microlens substrate to form ... | 03/25/2008 |
| 7349154 | Reflection type screen The reflection type screen comprises a reflection layer which is disposed on the opposite side to the projected light incident side of the screen, a horizontal view angle increasing layer which is disposed on the light incident side of the reflection layer, and a di... | 03/25/2008 |
| 7347585 | Structure of direct type backlight module with high uniform emitting light A structure of direct type backlight module with high uniform emitting light explores a design of lenticular lens of diffusing plate. The lenticular lens is against the central location of light source, where the light of lamp is scattered and the curvature of said ... | 03/25/2008 |
| 7345821 | Microlens substrate, a method for manufacturing the microlens substrate, a liquid crystal panel, and a projection type display apparatus A microlens substrate for an opposed substrate for use in a liquid crystal panel is provided. The microlens substrate includes: a substrate with concave portions having a plurality of concave portions; a convex lens substrate having convex lenses, each of the convex... | 03/18/2008 |
| 7330311 | Transmission type screen having directional light scattering lens and fresnel lens There is provided a transmission type screen having a directional light scattering lens and a fresnel lens, wherein the fresnel lens has contact portions that contact with the directional light scattering lens and non-contact portions which are provided between the ... | 02/12/2008 |
| 7324276 | Front projection screens including reflecting and refractive layers of differing spatial frequencies Projection screens include a substrate, a reflective layer on the substrate and a refractive layer on the substrate. The reflective layer includes reflective microstructures of about 5 μm to about 500 μm in size, and arranged in a first pattern to reflect light at... | 01/29/2008 |
| 7316498 | Faceted optical substrate and method of fabricating a faceted optical substrate and a backlight display comprising the faceted optical substrate There is provided an optical substrate. The optical substrate includes at least one prism structure. Each of the at least one prism structures has a first surface characterized by a first surface structure function modulated by a second surface structure function, t... | 01/08/2008 |
| 7312926 | Lenticular image display apparatus An apparatus for displaying a lenticular image comprising a lenticular image sheet and a lenticular lens sheet. The apparatus comprising a housing adapted to receive the lenticular image sheet and lenticular lens sheet so as to allow relative sliding movement betwee... | 12/25/2007 |
| 7307107 | Photopolymerizable composition and use thereof A photopolymerizable composition comprising a polymerizable compound and a photopolymerization initiator, wherein the polymerizable compound is characterized by comprising (a) a bifunctional (meth)acrylic acid (thio)ester compound containing a sulfur atom in the mol... | 12/11/2007 |
| 7303806 | Combination writing board/reflecting screen sheet A sheet for a writing board and a reflection type screen has excellent writability and erasability when used as a writing board and excellent anti-glare property without hot spots when used as a reflection type screen. This sheet includes a resin layer presenting a ... | 12/04/2007 |
| 7295370 | Projection television and manufacturing method thereof A projection television including: a screen having a plurality of image-forming sheets and an anti-dust film having a first side disposed between the image-forming sheets and a second side disposed at a front of the screen, and being detachable from the screen. ... | 11/13/2007 |
| 7279064 | Method of sealing an array of cell microstructures using microencapsulated adhesive A method for sealing microstructured cells, which are defined by at least a first substrate and a wall microstructure extending from the first substrate, includes a step of applying a plurality of adhesive microcapsules along at least one of a first side of a second... | 10/09/2007 |
| 7262912 | Front-projection screens including reflecting layers and optically absorbing layers having apertures therein, and methods of fabricating the same A front-projection screen can include a substrate having first and second opposing sides with an array of optical microstructures on the first side of the substrate and an image reflecting layer on the second side of the substrate opposite the array of optical micro... | 08/28/2007 |
| 7259912 | Fresnel lens having reduced distortions A display device for displaying images in a rear projection display device is provided. The display device may include, amongst other structure, a screen including a lens portion and a frame portion. A tensioner may be operatively associated with the screen and may ... | 08/21/2007 |
