Abstract:
A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs) including at least a first LED and a second LED. Chromaticities of the first and second LEDs are selected so that a combined light generated by a mixture of light from the pair of LEDs has about a target chromaticity. The first LED may include a first LED chip (43) that emits light in the blue portion of the visible spectrum and a phosphor (44) that emits red light in response to blue light emitted by the first LED chip. The second LED emits light having a color point that is above the planckian locus (106) of a 1931 CIE Chromaticity diagram, and in particular may have a yellow green, greenish yellow or green hue.
Abstract:
A liquid crystal display (LCD) device includes a pixel array including a plurality of pixels configured to display an image. The plurality of pixels respectively include a first subpixel configured to display first color image data, and a second subpixel configured to display second and third color image data. The LCD device may further include a backlight configured to emit the first, second, and/or third colors of light, and a backlight controller. The backlight controller may be configured to activate the backlight to emit the first and second colors of light at a same time to generate a first image component including a combination of the first color image data and the second color image data, and to separately emit the third color of light at a different time than the first and second colors of light to generate a second image component including the third color image data. The pixel array may be configured to display the first and second image components to provide a single image frame. Related devices and methods of operation are also discussed.
Abstract:
Methods of calibrating and operating a lighting panel including first and second strings of solid state lighting devices configured to emit light having first and second dominant wavelengths, respectively, are provided. The methods include supplying a first pulsed drive current the first string, the first drive current having a first pulse width at a pulse repetition rate, supplying a second pulsed drive current the second string, the second drive current having a second pulse width at the pulse repetition rate, sensing a light output from the lighting panel, and adjusting the first pulse width in response to the sensed light output. Lighting panel systems and calibration systems are also disclosed.
Abstract:
An LED light unit includes a tile, a plurality of discrete LED light sources, and an edge connector. The LED light sources are on and dispersed across a major surface of the tile and are electrically connected to electrical pads along an edge region of the tile. The edge connector includes a plurality of contacts that are connected to a plurality of wires extending away from the edge connector, and is configured to releasably connect to an edge of the tile so that the contacts directly connect to the pads and electrically connect the wires of the edge connector to the LED light sources. An LED lighting assembly includes a plurality of the discrete tiles mounted to a plurality of bars, and a plurality of edge connectors that are each connected to an end one of the tiles along different ones of the bars.
Abstract:
Rearview mirror assemblies are provided that incorporate a plurality of added features. In at least one embodiment, at least two devices are incorporated into a rearview mirror selected from a group comprising an interior illumination assembly, an illuminated operator interface and an information display. In at least one embodiment, the light rays emitted by the selected at least two devices comprise substantially the same spectral characteristics. In at least one embodiment, the spectral characteristics are operator selectable from a plurality of predetermined spectral characteristics.
Abstract:
Rearview mirror assemblies are provided that incorporate a plurality of added features. In at least one embodiment, at least two devices are incorporated into a rearview mirror selected from a group comprising an interior illumination assembly, an illuminated operator interface and an information display. In at least one embodiment, the light rays emitted by the selected at least two devices comprise substantially the same spectral characteristics. In at least one embodiment, the spectral characteristics are operator selectable from a plurality of predetermined spectral characteristics.
Abstract:
Provided are systems and methods for controlling a solid state lighting panel. A system according to some embodiments of the invention includes a first microprocessor operative to perform color management data processing and generate emitter control data values. The system also includes a second microprocessor operative to receive the emitter control data values from the first processor to control a plurality of light emitters.