Patent application number | Description | Published |
20090322987 | CHANNELIZED PLATE - Preferred embodiments utilize a plurality of optical channels to effectively aim the light emitted by a liquid crystal display (LCD). Embodiments may also change the nominal and range of viewing angles of light in two or three dimensions in order to confine the emitted light towards the intended observer. | 12-31-2009 |
20110102704 | WHITE LED FOR LIQUID CRYSTAL DISPLAY BACKLIGHTS - A light emitting diode (LED), method for optimizing an LED having characteristics which are tailored for a liquid crystal color filter set, and a liquid crystal display (LCD) using the LED are disclosed. The spectral response of the LED is optimized to provide the preferred optical properties when its light is transmitted through the color filter set and liquid crystal stack. Embodiments provide a diode chip which intrinsically emits light with wavelengths primarily within the blue visible spectrum (‘blue chip’). Surrounding the chip would be a first layer of phosphor that emits light with wavelengths primarily within the yellow-green region of the visible spectrum via phosphorescence with the blue light which is emitted from the diode chip (‘yellow-green phosphor’). There would also preferably be a second layer of phosphor that emits light with wavelengths primarily within the red region of the visible spectrum via phosphorescence with the blue light which is emitted from the diode chip (‘red phosphor’). | 05-05-2011 |
20120176786 | Shaped Reflectors for Enhanced Optical Diffusion in Backlight Assemblies - An assembly for diffusing a plurality of light sources. A diffusing device is placed adjacent to the plurality of light sources and preferably contains a plurality of shaped reflectors placed on the diffusing device where a shaped reflector is positioned adjacent to each light source. The shaped reflectors are placed in a one-to-one relationship with the light sources, which can be LED or fluorescent or any other type of light source. The reflectors may be single-tone, multi-tone, or gradient-tone and generally have a higher amount of reflectivity near the central axis of the light source and a lower reflectivity away from the central axis of the light source. The shaped reflectors may be used in both direct-lit and edge-lit orientations. | 07-12-2012 |
20130265525 | Lighting System for Transparent Liquid Crystal Display - Exemplary embodiments provide a lighting system for a transparent LCD having opposing vertical edges, the system having a mullion lighting assembly positioned adjacent to each vertical edge of the transparent LCD, each mullion lighting assembly having sidewalls defining a center channel. A plurality of LEDs are positioned along the sidewall of each mullion assembly and on a side of the sidewall that opposes the center channel. The LEDs are preferably placed in conductive thermal communication with the sidewall. A fan is positioned to draw cooling air through the center channel. A lens may be positioned adjacent to the LEDs to collimate the light. Louvers may be used to direct the emitted light away from the LCD, so as to reflect off the goods within a display case or the cavity within the display case. Some embodiments may use a flange to direct the emitted light away from the LCD. | 10-10-2013 |
20130286326 | CHANNELIZED PLATE - Preferred embodiments utilize a plurality of optical channels to effectively aim the light emitted by a liquid crystal display (LCD). Embodiments may also change the nominal and range of viewing angles of light in two or three dimensions in order to confine the emitted light towards the intended observer. | 10-31-2013 |
20140211454 | Lighting System for Transparent Liquid Crystal Display - Exemplary embodiments provide a lighting system for a transparent LCD having opposing vertical edges, the system having a mullion lighting assembly positioned adjacent to each vertical edge of the transparent LCD, each mullion lighting assembly having sidewalls defining a center channel. A plurality of LEDs are positioned along the sidewall of each mullion assembly and on a side of the sidewall that opposes the center channel. The LEDs are preferably placed in conductive thermal communication with the sidewall and preferably have a quantum dot film positioned over each LED. A fan is preferably positioned to draw cooling air through the center channel. | 07-31-2014 |
20140232709 | SYSTEM AND METHOD FOR ENVIRONMENTAL ADAPTATION OF DISPLAY CHARACTERISTICS - A system and method for altering the characteristics of a display based on environmental data is disclosed. Exemplary embodiments provide a light sensor, an environmental processing unit which is adapted to receive electrical signals from the light sensor and generate an environmentally-reactive control signal (S | 08-21-2014 |
20150300628 | Rod as a Lens Element for Light Emitting Diodes - The exemplary embodiments herein provide a lighting system for a display case having at least one edge. A lighting assembly is positioned along an edge of the display case or a door assembly, where a transparent or semi-transparent rod is positioned adjacent to the lighting assembly to act as a lens element. The rod is generally placed parallel to the edge of the display case or door assembly. The lighting assembly preferably includes a mounting structure which contains a substrate with a plurality of LEDs along with the rod. A blinder may extend rearwardly from the mounting structure to prevent headlighting. | 10-22-2015 |