Patent application number | Description | Published |
20100165660 | BACKLIGHT AND DISPLAY SYSTEM USING SAME - A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane. | 07-01-2010 |
20100208041 | STEREOSCOPIC 3D DISPLAY DEVICE - 3D stereoscopic viewing enabled by the use of a fast switching speed LCD panel, dynamic backlight, and low cost glasses. The system utilizes an LCD panel with an LED backlight and wavelength selective glasses to isolate each channel by color. The system is based on alternating left and right image frames on an LCD panel. The left and right frames are illuminated by two slightly different red-green-blue light sources that are synchronized sequentially. The light sources are designed to emit light of different spectral composition. The viewer wears glasses where the left lens or filter passes only the spectrum of light used for the left channel of data, and the right lens or filter passes only the spectrum of light used for the right channel of data. | 08-19-2010 |
20110156616 | ELECTRICALLY PIXELATED LUMINESCENT DEVICE - Electrically pixelated luminescent devices, methods for forming electrically pixelated luminescent devices, systems including electrically pixelated luminescent devices, methods for using electrically pixelated luminescent devices. | 06-30-2011 |
20110303893 | Electrically Pixelated Luminescent Device Incorporating Optical Elements - Electrically pixelated luminescent devices incorporating optical elements, methods for forming electrically pixelated luminescent devices incorporating optical elements, and systems including electrically pixelated luminescent devices incorporating optical elements. | 12-15-2011 |
20120032142 | NON-RADIATIVELY PUMPED WAVELENGTH CONVERTER - A light source comprises an electroluminescent device that generates pump light and a wavelength converter that includes an absorbing element for absorbing at least some of the pump light. A first layer of light emitting elements is positioned proximate the absorbing element for non-radiative transfer of energy from the absorbing element to the light emitting elements. At least some of the light emitting elements are capable of emitting light having a wavelength longer than the wavelength of the pump light. In some embodiments the electroluminescent device is a light emitting diode (LED) that has a doped semiconductor layer positioned between the LED's active layer and the light emitting elements. The first doped semiconductor layer may have a thickness in excess of 20 nm. A second layer of light emitting elements may be positioned for non-radiative energy transfer from the first layer of light emitting elements. | 02-09-2012 |
20120037885 | NON-RADIATIVELY PUMPED WAVELENGTH CONVERTER - A light source has an active layer ( | 02-16-2012 |
20120193607 | LIGHT SOURCE - Wherein the light source comprising: a monolithic emissive semiconductor device; and an array of lenslets, the lenslets being optically and mechanically coupled to the monolithic emissive semiconductor device; wherein the monolithic emissive semiconductor device comprises an array of localized light emission regions, each region corresponding to a given lenslet; wherein the lenslets have an apparent center of curvature (C | 08-02-2012 |
20130044293 | PROJECTION SUBSYSTEM - Projection subsystems are described. More, particularly, projection subsystems that include a light source and a polarizing beam splitter are described. The polarizing beam splitters of the presently described projection subsystems are capable of avoiding performance degradation even after exposure to large doses of incident light. | 02-21-2013 |
20130128549 | Backlight And Display System Using Same - A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane. | 05-23-2013 |
20130222237 | INTERACTIVE POLARIZATION-PRESERVING PROJECTION DISPLAY - The disclosure generally relates to optical devices, such as interactive displays, and in particular to interactive projection displays having passive input devices. The present disclosure also provides a passive interactive input device having the ability to overcome problematic ambient interference signals in an interactive display, such as an interactive projection display. | 08-29-2013 |
20140141725 | WIRELESS PRESENTATION SYSTEM ALLOWING AUTOMATIC ASSOCIATION AND CONNECTION - A wireless presentation system includes communication means for line-of-sight communication links such that an association between a content holder and a desired presentation device can be automatically established using line-of-sight communication links. | 05-22-2014 |
20140240981 | BACKLIGHT AND DISPLAY SYSTEM USING SAME - A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane. | 08-28-2014 |