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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...
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7204613 |
Projection display device
A projection type display apparatus is composed of a light source ( 101 ), an illumination optical system ( 102 ) for forming illumination light, a reflection type light valve ( 106 ) for...
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7202918 |
LCD projection system and illumination device thereof
The present invention relates to an illumination device of an LCD projection system. The illumination device comprises a light source, a quarter-wave retardation and a wire grid polarizer. The...
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7198376 |
Illumination optical unit liquid crystal projector and production method of liquid crystal projector
A lighting optical unit having an optical system for irradiating light from a light-source lamp on a predetermined object in a uniform and/or convergent manner includes a reflector for reflecting...
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7196743 |
Image display apparatus having particular phase difference
An image display apparatus is disclosed which is capable of obtaining a projected image having high contrast. The image display apparatus includes a luminous flux dividing system dividing light...
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7180557 |
Liquid-crystal projector
A projection unit comprises a light source unit and an image forming unit. The light source unit includes a light source section and an illuminating optical system which condenses the illuminating...
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7175279 |
Two-stage projection architecture
A two-stage light projection system is provided for projecting an image comprising a matrix of light pixels having modulated luminance. A first imager is configured to modulate a light band on a...
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7175281 |
Method and apparatus to increase the contrast ratio of the image produced by a LCoS based light engine
A transmissive LCD is placed in optical series with pixels of an image. The transmissive LCD is set to full transmissivity when bright pixels of the image pass through the transmissive LCD....
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7176909 |
Color correction circuit and image display apparatus including the same
A 2.2th-power to 1 st -power conversion circuit 102 uses a 2.2th-power curve to convert an input R signal ‘a’ into an R signal ‘b’ expressed in a 1 st -power signal space. Offsets, which...
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7159991 |
Projection type image display device
A rod integrator, which has a light incident face and a light exit face, inclines its axis at a predetermined angle with respect to a light emitting direction of a light source. The light incident...
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7154554 |
Flat moldable HDTV display
An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize...
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7152981 |
Projection illumination system with tunnel integrator and field lens
A projector illumination system includes a tunnel integrator incorporated with a field lens at its output end. One advantage of using the field lens is to form an image of the entrance end of the...
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7147332 |
Projection system with scrolling color illumination
A projection system having an imager panel uses a scrolling prism assembly to illuminate different portions of the imager panel with light of different color simultaneously. The scrolling prism...
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7145611 |
Seamless tiled display system
A modular and scalable seamless tiled display apparatus includes multiple display devices, a screen, and multiple lens assemblies. Each display device is subdivided into multiple sections, and each...
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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...
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7134757 |
Projection type display apparatus, rear projection, and multi-vision system
The present invention provides a small projection type display apparatus capable of suppressing an optical path of incident light and an optical path of output light in a reflection type light...
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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...
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7128426 |
Method of producing image display device and image projector apparatus
A method of producing an image display device used for an LCD projector by providing a periodic structure of pixels arranged in a matrix and a substrate supporting the pixels, modulating light...
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7126648 |
Liquid crystal projector comprising a plurality of light shielding members fixed between the lens array and the polarized light generator
Heat generation is inhibited in a polarized light generating optics system in a projector. A liquid crystal projector includes: lens arrays 140, 150 that generate partial light beams from a...
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7126652 |
Light source device including a planar light source having a single, substantially continuous light emission area and display device incorporating the light source device
A red light source comprising an array of LEDs 102 R that emit light of a red color, a green light source comprising an array of LEDs 102 G that emit light of a green color, and a blue light...
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7126649 |
Oblique plate compensators for projection display systems
Projection systems having o-plate compensation elements are described. The compensation elements may be negative, positive or biaxial anisotropic element and may have a homogeneous tilt or a...
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7123334 |
Liquid crystal display device and liquid crystal projector device
The present invention is a liquid crystal projector device using a liquid crystal panel. The device mounts a liquid crystal panel ( 16 ) on a light incident plane of a polyhedral dichroic prism (...
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7121668 |
Device and method for generating an image for projection
In an image projection device, interferences between the light source and the light modulator leading to visible interferences in the projected image are suppressed by an interference cancellation...
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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...
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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...
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7113231 |
Dot-sequential color display system
1266-03028 A color display system includes a color light separator that separates incident white illumination light into red, green and blue wavelength bands to be directed to distinct color...
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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...
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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...
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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...
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7110052 |
Backlighting construction for use in computer-based display systems having direct and projection viewing modes of operation
A reconfigurable backlighting construction for use in portable computer-based systems having direct and projection viewing modes of operation is provided. These computer-based systems are capable...
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7106389 |
Optical shifter and projection type optical display system
An optical shifter includes first and second optical shifting sections, each of which can transmit an incoming light ray after having shifted its optical axis and which are arranged such that a...
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7104652 |
Image display device and projector
To provide an image display device and a projector having a brightness or an excellent utilization efficiency of the light by improving the display performance of a moving picture. A projector...
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7104655 |
Projector having an image signal controller
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 and...
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7106505 |
High dynamic range display devices
A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the...
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7098972 |
Liquid crystal projector with different shaped housing for each liquid crystal panel dependent on color
The invention provides a cased electro-optical apparatus that can include an electro-optical unit that receives light in the image display area from a light source, a plate that opposes one side of...
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7093960 |
Electro-optical device encased in mounting case, projection display apparatus, and mounting case
An electro-optical device cased in a mounting case includes an electro-optical device having an image display region on which projection light from a light source is incident, and a mounting case...
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7090350 |
Optical projection system and method
An optical projection system can receive a red light beam, green light beam, and blue light beam. The optical projection system includes a color-combination prism, and the light beams respectively...
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7092056 |
Quarter wavelength plate and projection type video display device using the same
A quarter wavelength plate for reducing the dependence of a retardation value on an incident beam angle in optically anisotropic crystals. The quarter wavelength plate is formed of optically...
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7079197 |
Light source module for collecting reflective beam from light source
A light source module, applicable in a projection display system, comprises a light source, a light-selection device and a reflective device. The light source provides an incident beam. The...
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7070286 |
Projector with projection lens having a zoom function
A projector in accordance with the invention includes a projection lens having a zoom function that forms a projected image corresponding to an image signal on a screen, a zoom state detection...
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7066609 |
Projection-type display apparatus
In a projection-type display apparatus that directs light from a light source through the illumination optical system to a display panel so that an image displayed on the display panel illuminated...
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7059723 |
Illumination optical system, image display optical system, projection type image display apparatus, and image display system
An illumination optical system that illuminates a plurality of image display elements comprises; a color separating optical system that separates light emitted from a light source into a plurality...
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7057686 |
Liquid crystal structure with improved black state, and projector using same
A liquid crystal (LC) lightvalve comprising a twisted nematic LC layer whose molecules are aligned with pixel edges at the mirror backplane, thereby providing improved contrast and efficiency, and...
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7055957 |
Laser projection apparatus with liquid-crystal light valves and scanning reading beam
Laser lines at 635 nm or longer (ideally 647 nm) are preferred for red, giving energy-efficient, bright, rapid-motion images with rich, full film-comparable colors. Green and blue lines are used...
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7052145 |
Displays using solid state light sources
Methods and systems are disclosed for displaying images represented by image-representative video signals. In one embodiment, an apparatus is provided for displaying images represented by...
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7052137 |
Spectral light division and recombining with incident face for light to be divided
A spectral light division and recombination configuration and method has an incident face for light to be divided and at least one emergent face for recombined light. A spectrally selective light...
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7048385 |
Projection display systems utilizing color scrolling and light emitting diodes
A projection display system has at least one light-recycling illumination system, a color scroller and an imaging light modulator. The light-recycling illumination system includes a light source...
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7042535 |
Optical display system and optical shifter
An optical display system includes: a light source; a display panel including multiple pixel regions, each of which can modulate light; and an optical shifter, which is disposed so as to receive an...
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7042637 |
Image display
This invention is an image display device for performing color display of an image using two spatial light modulators. The image display device has a first spatial light modulator ( 52 ) for...
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7038742 |
Electro-optical device fixed to mounting case by cover that includes resin and metal member
It is possible to display high quality images by reducing or preventing heat accumulation in an electro-optical device, reducing or preventing undesired force from being applied to the...
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