Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 8144270 | Color filter device and method for fabricating the same A liquid crystal on silicon (LCoS) panel is disclosed. The LCoS panel includes: a substrate having at least one metal-oxide semiconductor (MOS) transistor thereon; a pixel electrode array disposed on the substrate; a plurality of color filters with at least two diff... | 03/27/2012 |
| 7420585 | Image capture and display device A display device for capturing and displaying images along a single optical axis. The device includes a display panel having a front side and a back side, said display panel capable of being placed in a first display state which allows displaying of an image on said... | 09/02/2008 |
| 7404644 | Time-sequential colour projection A time-sequential colour projector comprises a pixellated light valve (2), such as a liquid crystal device, and a plurality of light sources (30, 31, 32). The light sources (30, 31, 32) direct light on different sets of pixels of the light valve... | 07/29/2008 |
| 7400100 | Discharge-lamp lighting apparatus and projector A discharge-lamp lighting apparatus includes a control circuit that determines electric power supplied to a high-pressure discharge lamp after the high-pressure discharge lamp is started by an igniter. The electric power is determined in accordance with a voltage co... | 07/15/2008 |
| 7390093 | Projection display with color segmented microdisplay panel A single panel display may have discrete, dedicated segments associated with each of the primary colors. The segments may not be equally sized in some embodiments. The light from a light source may be split into color portions that are adjusted to accommodate to the... | 06/24/2008 |
| 7387389 | Image display system and method An image display device includes an image processing unit, a light source assembly, an optical modulator assembly, and a projection lens assembly. The image processing unit is configured to receive a video signal and generate image data and control signals. The ligh... | 06/17/2008 |
| 7380947 | Multi-step turn off mode for projection display Disclosed herein is a method of operating display systems with reduction of the warm-up time of an arc lamp in the event of an accidental or unintentional turn-off. ... | 06/03/2008 |
| 7366390 | Fiber optic cable tool A technician's tool for installing and repairing fiber optic cables includes a tubular housing having an open, substantially bell-shaped head portion at an upper end. Positioned within the housing, proximal the bell-shaped head portion, is a light source with a lens... | 04/29/2008 |
| 7317281 | Method for manufacturing electrooptical device and apparatus for manufacturing the same, electrooptical device and electronic appliances The present invention provides a method of manufacturing an electrooptical device including a first member on which an electrooptical element is disposed, and a second member covering the electrooptical element. The method includes (a) feeding an adhesive material t... | 01/08/2008 |
| 7300157 | Pixel-shifting projection lens assembly to provide optical interlacing for increased addressability A projection display system includes a projection lens assembly that has multiple projection lens elements that are configured to receive light imparted with display information by a pixelated display device. The projection lens elements project the light toward a d... | 11/27/2007 |
| 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 |
| 7251084 | Fresnel lens and an illuminating device provided with the Fresnel lens A refractive Fresnel lens part is provided on an upper surface of a plate-like lens at a central portion. A reflective Fresnel lens part is provided on a lower surface of the plate-like lens at a peripheral portion. ... | 07/31/2007 |
| 7245429 | Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheet A total reflecting prism portion is formed on an image generation source side of a Fresnel lens sheet which constitutes a rear projection type screen. The total reflecting prism portion is formed in an area in which the angle of incidence of a projection image proje... | 07/17/2007 |
| 7220005 | Projection type video display apparatus An object of the invention is to achieve a high intensity, a compact structure, a cost reduction and a heat radiation of a liquid crystal panel, in a projection type video display apparatus employing a combination of LED light sources and a light pipe. The light pip... | 05/22/2007 |
| 7210797 | Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus In a projection type image display apparatus, a projector optical unit for projecting an image onto a screen while magnifying a size of the image to be projected with respect to an original size of the image displayed by an image forming element, has a group of lens... | 05/01/2007 |
| 7207679 | Projection type video display A video signal processing circuit inputs a video signal to perform processing such as frequency conversion as well as processing for generating data representing the APL (Average Picture Level) of a frame video for each frame period. A microcomputer functions as a d... | 04/24/2007 |
| 7204605 | Illuminating device and projection type video display apparatus The auxiliary light source has LED chips respectively emitting red lights arranged therein in an array shape, and has lens cells for parallelizing light arranged therein on the light exit side of the LED chips, for example. The LED chip is arranged in correspondence... | 04/17/2007 |
| 7185986 | Projection type video display apparatus, light deflection device in projection type video display apparatus, and direct-view type video display apparatus In a projection type video display apparatus comprising means for circularly scrolling and irradiating irradiated light in a direction perpendicular to the line direction on a hold-type display panel, a projection type video display apparatus comprises means for var... | 03/06/2007 |
| 7175287 | Wide angle projection lens A projection display device is provided. The projection display device may include an image generation device configured to generate an image and a wide angle lens system having an optical axis configured to receive the image and project the image along an optical p... | 02/13/2007 |
| 7150537 | Projection television device and screen A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image ... | 12/19/2006 |
| 7147331 | Method of driving a spatial light modulator and projector To reduce the color break-up and to provide high quality projection images. A method of driving a spatial light modulator, including generating a sub-frame pulse signal for a first colored light R1 through R8, B1 through B8, generating a ... | 12/12/2006 |
| 7137708 | Infra-red and ultraviolet filtration in projection systems A method of generating a projection beam for projecting an image includes collimating the projection beam and filtering infra-red or ultraviolet radiation from the projection beam after the projection beam has been collimated. ... | 11/21/2006 |
| 7131735 | Light source device, optical device, and liquid-crystal display device A light source device, comprising a light guide block that is provided with an inner wall capable of reflecting light and is shaped as a hollow component to form a light guide, and a point light source array that is located opposite one end face of the light guide b... | 11/07/2006 |
| 7125123 | Image projector An image projector is disclosed. The image projector includes a lamp emitting light rays, a filtering unit having a first device including a plurality of color filters including a white color filter each formed to correspond to a section therein, and a second device... | 10/24/2006 |
| 7118227 | Projection display device An illuminating optical system for focusing a radiant light of a light source (1) onto a reflecting light valve (6) and a projection lens (7) for magnifying and projecting a reflected light from the reflecting light valve (6) onto a scree... | 10/10/2006 |
| 7114815 | Lens device and projector having diaphragm mechanisms with apertures having inwardly curved sides The invention provides A lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 10/03/2006 |
| 7114814 | Projector having an illuminance detector The invention provides a projector having a light source, a display device to modulate light emitted from the light source, a lens device to project light emitted from the light source via the display device, wherein the lens device has a diaphragm mechanism formed ... | 10/03/2006 |
| 7111941 | Method and apparatus for multiple-resolution light value projector A projected image is created by receiving an image represented in a colorspace onto a projector device. The image is parsed into two or more color image components of the colorspace having two or more different resolutions. The two or more color image components of ... | 09/26/2006 |
| 7111946 | Lens device and projector having diaphragm mechanisms with substantially triangular apertures The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 09/26/2006 |
| 7111947 | Lens device and projector having diaphragm mechanisms with substantially square apertures The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 09/26/2006 |
| 7108377 | Video light producing device and projection type video display To provide a projection type video display capable of reliably preventing a double image from being produced. A first light flux producer for producing a first light flux and a second light flux producer for producing a second light flux are arranged on the light em... | 09/19/2006 |
| 7106406 | Liquid crystal displays with multi-domain effect formed by surface undulations A liquid crystal display comprising an upper substrate having the inner surface on which an upper electrode and an upper grating film having surface undulation are laminated; a lower substrate having the inner surface on which a lower electrode and a lower grating f... | 09/12/2006 |
| 7104651 | Color scrollable projection system A color scrolling projection system is provided, including a light source, a color separator, a color scanner, a light valve, and a control circuit. The light source generates and emits light. The color separator separates incident light according to color. The colo... | 09/12/2006 |
| 7102820 | Flat valley fresnel lens for a display device A Fresnel lens for a display device is provided. The Fresnel lens includes a first sloped surface angled to receive input light, a second sloped surface facing the first sloped surface, and a valley floor linking the first sloped surface to the second sloped surface... | 09/05/2006 |
| 7097308 | Highly efficient projection system A highly efficient projection system is provided, including a light source, a color separator, a scrolling unit, a light valve, a projection lens unit, and a polarization conversion system. The color separator separates an incident beam according to color. The scrol... | 08/29/2006 |
| 7088507 | Rear projection display The ultra-thin rear projection display device described herein includes a lens system and one or more planar mirrors that are parallel to a screen on which an image is to be displayed. The screen may be a Fresnel lens having a plurality of bumps on the output surfac... | 08/08/2006 |
| 7088509 | Laminate screen for display device A rear projection display device is provided. In an embodiment, the display device includes a laminate screen including a Fresnel lens lamina having a non-planar input surface, a substantially planar output surface and a first index of refraction. The laminate scree... | 08/08/2006 |
| 7070284 | Projector apparatus A projector apparatus includes digital micromirror device (DMD) Color temperature and adjustment of white balance with respect to projection light can be detected in a light condition in a convenient manner. A position of the picture formed by the projection light o... | 07/04/2006 |
| 7066602 | Projection type image display system capable of color scrolling A highly-efficient projection system is provided, including a light source, a color separator, a scrolling unit, a light valve, and a projection lens unit. The color separator separates an incident beam according to color. The scrolling unit includes at least one le... | 06/27/2006 |
| 7055965 | Projection type video display A shutter device comprises a plurality of shutters. Each of the shutters is provided at a position in the vicinity of a fly's eye lens positioned on the side of a polarization conversion system (one of fly's eye lenses in an integrator lens) and not preventing the p... | 06/06/2006 |
