| Patent application number | Description | Published |
|---|
| 20090021458 | High contrast liquid crystal display - A projection system including a first imager that is an organic light emitting diode (OLED) imager configured to modulate a light band on a pixel-by-pixel basis proportional to gray scale values provided for each pixel of the image to provide a first output matrix and a second imager positioned and configured to receive the first output matrix of modulated pixels of light from the first imager on a pixel-by-pixel basis proportional to a second gray scale value provided for each pixel of the image is disclosed. | 01-22-2009 |
| 20090059095 | PROJECTION LENS SYSTEM AND METHOD - The disclosed embodiments relate to a system and method for medium wide angle projection system. An exemplary embodiment of the present technique comprises an imaging system configured to create an image, at least one lens configured to produce a medium wide-angle representation of the image, and an aperture stop positioned to capture the medium wide-angle representation of the image from the at least one lens. | 03-05-2009 |
| 20090103006 | Backlight assembly and liquid crystal display device using the same - A liquid crystal display (LCD) device includes an LCD panel having an exterior surface with a first area and an interior surface; a light filter layer having an exterior surface provided at the interior surface of the LCD panel and an interior surface; a light guide assembly provided behind the interior surface of the light filter layer, the light guide assembly including a plurality of light pipes; a light source including a plurality of selectively illuminated lamps arranged at a lateral side of the light guide assembly, each of the lamps being respectively associated with a different one of the light pipes for emitting light into the respective light pipe; a plurality of diffusion surfaces, each of the diffusion surfaces being provided on a selected area of a respective one of the plurality of the light pipes, the selected area being smaller than the first area; wherein each of the diffusion surfaces causes light to be emitted from the selected area of the respective light pipe when the light pipe is illuminated by the lamp associated therewith. | 04-23-2009 |
| 20090122277 | PROJECTION LENS WITH EXTERIOR STOP - The disclosed embodiments relate to a system and method for medium wide-angle projection system. An exemplary embodiment of the present technique comprises an imaging system configured to create an image, a lens having a front surface and a back surface, the lens configured to receive an image on the back surface and produce a medium wide-angle representation of the image on the front surface, and an aperture stop positioned adjacent to the front surface of the lens to capture the medium wide-angle representation of the image from the lens. | 05-14-2009 |
| 20090231723 | WIDE ANGLE PROJECTION LENS SYSTEM AND METHOD - The disclosed embodiments relate to a system and method for wide angle image projection. An exemplary embodiment of the present invention comprises a video unit, comprising an imaging system configured to create a projected image, a lens group optically coupled to the imaging system to receive the projected image. The lens group including a lens doublet having a first positive crown element, a negative flint element affixed to the first positive crown element, and a second positive crown element adjacent to the lens doublet and facing the imaging system. The video unit further comprises a positive flint element optically coupled to the lens group to receive the projected image from the lens group, a physical stop disposed between the positive flint element and the lens group, and a negative crown meniscus optically coupled to the positive flint element to receive the projected image from the positive flint element, the negative crown meniscus adapted to produce a wide-angle representation of the projected image. | 09-17-2009 |
| 20100007803 | SYSTEM AND METHOD FOR ILLUMINATING A MICRODISPLAY IMAGER WITH LOW ETANDUE LIGHT - There is provided a system and method for illuminating a microdisplay with low etendue light. More specifically, in one embodiment, there is provided a video unit comprising a microdisplay imager and a light engine comprising a light source configured to produce a low etendue beam of light, and a plurality of lenses configured to shape the low etendue beam of light to correspond to one or more dimensions of the microdisplay imager. | 01-14-2010 |
| 20100053495 | Backlight assembly and a liquid crystal display device using the same - A backlight assembly for a display panel includes a light pipe that is divided into a plurality of horizontal portions, a light source including a plurality of selectively illuminated lamps arranged at lateral sides of each of the horizontal portions for emitting light into the light pipe, a plurality of diffusion surfaces, each of the diffusion surfaces being provided on a selected area of a respective one of the plurality of the horizontal portions, wherein each of the diffusion surfaces causes light to be emitted from the selected area of the respective horizontal portion when the light pipe is illuminated by the lamp associated therewith. | 03-04-2010 |
| 20100231812 | MICRODISPLAY IMAGER SYSTEM AND METHOD - The present invention is directed to an illumination system. The illumination system comprises a plurality of light emitting diodes (LEDs) adapted to emit light. The illumination system further comprises a plurality of lens elements disposed subsequent to the LEDs, such that a number of lens elements corresponds to a number of LEDs. Further the plurality of lens elements are adapted to redirect the light emitted by the LEDs on a lens. | 09-16-2010 |
| 20100238364 | MODULAR LED ILLUMINATION SYSTEM AND METHOD - The present invention is directed to an illumination system. The illumination system comprises a plurality of modules such that each module comprises a plurality of light emitting diodes (LEDs) adapted to emit light. The illumination system further comprises a plurality of lens elements disposed subsequent to the LEDs. Further, a number of the lens elements corresponds to a number of LEDs; such that the plurality of lens elements is adapted to redirect the light emitted by the LEDs on a plurality lenses. The illumination system further comprises a plurality of imagers disposed subsequent to the plurality of lenses, such that each of the imagers forms an image from the light provided by each of the lenses, respectively. Further, the images formed by the plurality of imagers are combined by a device, such as an X-cube, to form a single image that is further provided to a light pipe of a display system. | 09-23-2010 |
| 20100245686 | SYSTEM AND METHOD FOR MODULAR LED ILLUMINATION - The present invention is directed to an illumination system of a video unit. In an exemplary embodiment of the present invention, the illumination system comprises a module comprising a plurality of light emitting diodes (LEDs) adapted to emit light. The illumination system further includes a plurality of lens elements disposed subsequent to the LEDs. The plurality of lens elements is adapted to distribute intensity of the light emitted by the LEDs across an aperture. In addition the intensity of the light at the aperture directly corresponds to the location of the LEDs within the module. | 09-30-2010 |
| 20100253859 | MODULAR LED ILLUMINATION SYSTEM AND METHOD - The present invention is directed to an illumination system. The illumination system comprises a plurality of modules comprising a plurality of light emitting diodes (LEDs) adapted to emit light signals. The illumination system further comprises a plurality of polarizing elements disposed subsequent to the LEDs. Each of polarizing elements is adapted to render a unique polarization to the light signals emitted by a respectively corresponding one of the modules. Further, the illumination system comprises a polarization converting element disposed subsequent to the plurality polarizing elements. The polarization converting element is adapted to uniformly polarize all of the light signals emitted by the plurality of modules. | 10-07-2010 |
| 20100271562 | MODULAR LED ILLUMINATION SYSTEM AND METHOD - The present invention is directed to an illumination system. The illumination system comprises a plurality of modules comprising a plurality of light emitting diodes (LEDs) adapted to emit light signals. The illumination system further comprise a plurality of lens elements disposed subsequent to the modules, such that the plurality of lens elements is adapted to redirect the light emitted by the LEDs of the modules onto a plurality of lenses. Further, the illuminations system includes a light combining element, such as an X-cube, disposed subsequent to the plurality of lenses, wherein the combining element combines the light provided by each of the plurality of lenses to form a single image across an aperture. | 10-28-2010 |
| 20110134368 | SYSTEM AND METHOD FOR PROVIDING BACKLIGHT USING A DIRECTIONAL REFLECTIVE SURFACE - The present embodiments are directed to a backlight illumination system. The backlight illumination system includes a light source adapted to uniformly emit light in numerous directions for illuminating a display unit. The backlight illumination system further includes a reflector disposed behind the light source, wherein the reflector is adapted to reflect the uniformly emitted light along a desired direction to provide backlight illumination to the display unit. | 06-09-2011 |
