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7616272 |
Electroluminescent films for backlighting liquid crystal displays
The present invention replaces the conventional cold cathode fluorescent tubes used in backlighting units of liquid crystal displays with an integrated electro-luminescent film structure,...
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7607780 |
Projection-type 3-D image display using single projector
A projection-type 3-D image display includes a light source, a single display element, an image shift member, a projection lens unit, and a screen unit. The display element produces an image using...
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7605981 |
Display unit, display method and equipment using thereof
A display unit which displays a plurality of objects viewed as being located at different depthwise positions by the viewer so as to exhibit an image with depthwise feeling, includes: a single...
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7602449 |
Projection type liquid crystal display unit with reflected incident light
A projection type liquid crystal display unit includes (a) a first frame ( 13 ) having a first surface ( 15 ) formed with a first opening ( 13 a ), (b) a second frame ( 12 ) having a second surface...
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7589797 |
High efficiency liquid crystal display projection system
A transmitting-type liquid crystal display projection system including a planar light source which emits planar white beam or planar R/G/B beams in succession is provided. A first polarization...
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7583446 |
Electronic adjustable color filter device
An electronically adjustable, combinational color filter device is provided for generating color light. Incoming light is split in a polarizing beam splitter/combiner into a first and a second...
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7570425 |
System, apparatus and method for high efficiency low leakage LCD polarizer
An apparatus for a liquid crystal display includes a polarizer film configured to receive light from a liquid crystal display and an optical polarizer screen configured to filter light for the...
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7564509 |
Illumination of objects using spatial light modulators
Apparatus for illuminating an object comprising a first polarizing beamsplitter ( 2 ) which produces a first linearly polarized component ( 3 ) and an orthogonally polarized component ( 5 ). The...
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7559654 |
High luminance display apparatus using LCD panel
A projection apparatus ( 10 ) has an LC modulator panel ( 60 ) with photoresponsive layer ( 316 ), segmented into a first, second, and third portion, each spatially separated. An image writing...
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7557868 |
Liquid crystal projector device
A liquid crystal projector device of the present invention includes three image generating units for generating image light of three primary colors. Each image generating unit has a polarizing...
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7557867 |
Optical engine and image projecting apparatus having the same
An optical engine is provided that includes a base frame, a video device assembly for generating a video signal, and a driving substrate detachably coupled to the video device assembly for driving...
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7553024 |
Image display device
An image display device includes a light source which outputs a first light including a first color light, a second color light and a third color light, a polarity converter which unifies...
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7551317 |
Color control for a printing press having spectrally based colorimetry
A method and a measuring device are proposed for controlling the color application of a printing press ( 10 ) using at least one ink-feeding device ( 20 ) on the basis of spectral reflectance...
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7542194 |
Birefringence-compensated liquid crystal display and projection system using same
A projection system includes an image-forming device and a polarizing beamsplitter. Illumination light illuminates the image-forming device via the first polarizing beamsplitter. A retardation...
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7532261 |
Projection system with polarization direction rotating member
An exemplary projection system includes a light source unit, a polarization direction rotating member, a polarization direction restoration polarizer, an LCD panel, and a projection lens. The light...
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7528892 |
Projector device
A liquid crystal projector device of the present invention includes a lamp unit, an optical system for separating light emitted from the lamp unit into light of three primary colors, and an image...
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7502085 |
Display device having functional transparent plate in prismatic structure on retarder provided on polarizer above display panel assembly
An optical system consisting of a reflective polarizer, a λ/4 retarder, and a functional transparent plate with first facets and second facets which is provided on a display panel assembly...
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7502078 |
Projection type display apparatus with means for supplying an air cooling stream to a gap between a light receiving surface of a prism and a third surface of a closed triangular prismatic housing
A projection type display apparatus includes: a reflective polarizing plate for each color light which transmits each of R light, G light and B light having a P polarized component subjected to...
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RE40655 |
Polarization light splitting film, backlight system and liquid crystal display having particular diffusion layer under optical rotational selection layer
A polarization light splitting film having a light receiving side and a light transmitting side. The polarization light splitting film includes an optical rotation selection layer at the light...
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7497577 |
Light modulator assembly
A projection assembly includes a dichroic beam splitter having first and second crossed dichroic surfaces, at least one interference type light modulator panel optically coupled to the dichroic...
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7484850 |
Illuminating device and projector
Aspects of the invention can provide an illuminating device and the like capable of efficiently supplying polarized light in a particular oscillation direction and suitable for a projector having a...
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7475991 |
Polarizing beamsplitter assembly
An optical unit that includes a polarizing beamsplitter (PBS). The PBS includes a reflective polarizer that transmits a portion of a light beam that has a first polarization and reflects a portion...
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7443565 |
Image display apparatus, projector, and polarization compensation system
Aspects of the invention can provide an image display apparatus for displaying an image by modulating light from a light source based on display image data. The apparatus can include a first light...
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7429110 |
Projector-type image display apparatus
At least one exemplary embodiment is directed to a projector which includes several optical elements, reflective devices and beam splitters, arranged to reduce back reflection effects. At least one...
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7400377 |
Display having particular polarisation modifying layer
A display is provided for providing a restricted viewing mode, for example a private viewing mode where the display may be viewed from a limited region of space by a single viewer and not by other...
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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...
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7396130 |
Optical system, image projection apparatus and method thereof
An image projection apparatus. The image projection apparatus comprises a light source and LCD panel. The LCD panel comprises a plurality of pixels and color filters thereon. Light from the light...
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7390095 |
Projector
Aspects of the invention can provide a projector that includes three optical modulators which modulate respectively red light, green light, and blue light, a color-synthetic optical system which...
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7390094 |
Method and apparatus to achieve a neutral dark state in image projection systems
An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based...
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7387391 |
Apparatus and method for mounting imagers on stress-sensitive polarizing beam splitters
An optical device that includes an optical element, an imager, and a prism bracket. The optical element includes an optical element having first and second prisms coupled together. The imager is...
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7377649 |
Projector arrangement
A projector arrangement is provided wherein a spectral splitting and recombination unit (SSR) includes a first and a second polarization selective or polarizing beam splitting device and a...
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7369186 |
Polarizing beam splitter featuring stacked grating layers and display including the same
A polarizing beam splitter includes a polarization splitting layer which includes stacked one-dimensional grating layers. The grating layers can include alternating layers of at least one H layer...
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7364302 |
Projection display system using multiple light sources and polarizing element for using with same
An image projection system has two illumination beams of different colors. A first polarizing beamsplitter (PBS) has first and second input faces. Light of the first color is incident on the first...
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7360899 |
Beamsplitting structures and methods in optical systems
Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel...
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7359008 |
Dynamic range and contrast enhancement for microdisplay
The invention relates to a light valve system that enhances the contrast ratio for light and dark video images and reduces contouring artifacts. The light valve system comprises a color selection...
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7349048 |
Method and apparatus for adjusting light intensity
A variable retarder and linear polarizer are placed in series in a polarized light path. A transmission axis of the linear polarizer is parallel to an axis of a polarization of the polarized light....
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7347557 |
Projector system comprising pulsed light sources
A projection system comprising a light source is disclosed, wherein the light source comprises at least two light emitters arranged to be optically positionable alternately in a first position and...
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7344254 |
Projection system with a common light source sharing system
A projection display with a common light source sharing system for improved illumination uniformity is described. The common light source is coupled through a light-dividing prism to multiple...
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7334900 |
Three-dimensional image projecting apparatus
The invention provides a three-dimensional image projecting apparatus. The three-dimensional image projecting apparatus comprises a light signal generator, a filter device, a focusing device and a...
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7331676 |
Apparatus for projecting a reduced image of a photomask using a schwarzschild objective
An optical system for projecting an image of a photomask on a substrate, using a Schwarzschild objective includes an excimer laser, beam shaping optics for shaping a laser beam from the laser and a...
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7329006 |
Projection system having low astigmatism
Generally, the present invention relates to an apparatus for reducing astigmatism in a projection system that is particularly well suited to reducing astigmatism in LCD projection systems. A...
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7329004 |
Rear projection display device
A rear projection display device improves the brightness by improving the utilization efficiency of image light projected to a screen from slantly below. At least a green component of the image...
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7316481 |
Projection device for projecting an image
The invention relates to a projection device for projecting an image, comprising an illumination means ( 1 ) having an entrance ( 13 ) for entering light from a light source, a...
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7303283 |
Projection type display
A first light-source unit and a second light-source unit are disposed in such a manner that those respective optical axes intersect approximately perpendicularly to each other, a reflective...
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7301586 |
LCD TV and projection-based backlight system used therefor
An LCD TV includes a housing, an LCD screen panel disposed on the front side of the housing, a first mirror disposed on the back side of the housing and a projection-based backlight system disposed...
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7295371 |
High efficiency electromagnetic beam projector, and systems and methods for implementation thereof
This invention relates to electromagnetic wave beam paths, formation of the beam, illumination of programmable electromagnetic wave field vector orientation rotating devices (“PEMFVORD”) with...
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7293877 |
Projecting apparatus and projecting and displaying apparatus
The present invention includes a light source which emits a plurality of lights having different wavelength areas, a plurality of image forming devices which are arranged on respective optical...
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7287858 |
Color separating unit and projection type image display apparatus employing the same
An image display apparatus which includes at least one light source to generate and radiate a light beam, a color separating unit to separate the light beam emitted from the light source into a...
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7286290 |
Optical illumination apparatus
An optical illumination apparatus has a polarization conversion device for converting light from a light source into light polarized uniformly in a predetermined manner and an optical integrator...
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7281803 |
Polarization conversion assembly to complement angular transmission distribution of polarizing light modulator
An apparatus, system, and method for a polarizing conversion assembly adapted to provide polarized light having an intensity distribution to complement an angular transmission distribution of a...
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