摘要:
A system for cooling an electronic display where an isolating structure may be used to allow ambient air to cool power modules. The isolating structure substantially prohibits containments which may be present within the ambient air from contacting sensitive electrical components on the power modules or otherwise. A gasket may be used to seal the interface between the power modules and the isolating structure. Heat sinks may be placed in thermal communication with the power supplies and fans may draw air through a narrow channel in which the heat sinks are located. In some embodiments the narrow channel may have the opposing surface of the channel defined by the rear portion of an LED assembly. Exemplary embodiments may use the ambient air to cool both the power modules and a closed loop of isolated gas within the electronic display.
摘要:
A flat panel display has an optically-transparent electrically-conductive layer, especially an indium tin oxide layer, directly formed on an outer front surface of a liquid crystal display (LCD) assembly having a front plate, a rear plate, and a layer of liquid crystal material interposed between said front and rear plates. The optically-transparent electrically-conductive layer is preferably uniform and functions as an integral heater when connected to a direct current power source.
摘要:
A system and method for controlling subsections of an LED backlight for a liquid crystal display (LCD). Exemplary embodiments analyze the histograms for each subsection of the LCD which corresponds with the subsections of the LED backlight in order to produce a proper luminance for the backlight subsection. The proper luminance may be less than the maximum or typical luminance that is produced by common LED backlights. By reducing the luminance the resulting display can have less power consumption, longer lifetime, and higher contrast ratios. The original subpixel voltages for the LCD are re-scaled based on the proper luminance for the backlight subsection. Virtual backlight data may be created to simulate the luminance at each subpixel and the virtual backlight data may be used to re-scale the original subpixel voltages. The virtual backlight data may be used to blend between adjacent subsections of the LED backlight which may be producing different levels of luminance.
摘要:
An isolated access assembly for a back-to-back electronic display and static display setup. A central housing contains an electronic display with a static display being hingedly attached to the central housing on the opposite side of the electronic display. The static display can rotate to allow access to the rear of the electronic display without permitting access to the static display itself. A front door may be hingedly attached to the central housing and placed in front of the electronic display to allow the front portion of the electronic display to be accessed and serviced. A rear door may be hingedly attached to the static display to allow the static display to be accessed and serviced. A first locking mechanism may control access to the rear portion of the electronic display while a second locking mechanism may control access to the front portion of the electronic display. A first advertising party may be given proper access to the first and second locking mechanisms. A third locking mechanism may control access to the static display. A second advertising party may be given proper access to the third locking mechanism.
摘要:
A cooling assembly for a dual electronic image assembly having an open and closed gaseous loop. A closed gaseous loop allows circulating gas to travel across the front surface of a pair of electronic image assemblies and through a heat exchanger. An open loop allows ambient gas to pass through the heat exchanger and extract heat from the circulating gas. An optional additional open loop may be used to cool the back portion of the electronic image assembly (optionally a backlight). The cooling assembly can be used with any type of electronic assembly for producing an image. Some embodiments use cross-flow heat exchangers comprised of corrugated plastic.
摘要:
A system and method for distributing a plurality of unique streams of video data. Each stream of video data may be encoded with a unique identifier and each receiver may be associated with one of the unique identifiers. The streams of video data may be multiplexed onto a single cable and distributed to the receivers using various networking techniques. A receiver may decode only the video stream for which it has been previously associated with. Once decoded the video stream may be displayed by an electronic display. The streams of video data may be in different resolutions and/or different frame rates from one another. The network may be in two-way communication with the internet so that a receiver's association with a particular stream of video data can be changed remotely.
摘要:
A flat panel display having a black mask EMI layer isolated from Vcom and tied to zero potential. The flat panel display has an integral metal heater layer and thermal sensor that are in close proximity to the liquid crystals to provide efficient heating and temperature sensing.
摘要:
A flat panel display, particularly a liquid crystal display has a front plate with a plate area defined by a plate perimeter, which is in turn defined by a first and second pair of parallel sides, the pairs of sides in perpendicular relationship to each other. An active display area providing a unitary visual display is located within the plate perimeter. In the invention, this active display area is divided into at least first and second display areas, a visual output of said first and second display areas being separately driven. In some embodiments, one or both of the display areas is subdivided into first and second subdisplay areas, with the visual output of the first and second subdisplay areas being separately driven.
摘要:
A flat panel display having a black mask EMI layer isolated from Vcom and tied to zero potential. The flat panel display has a integral metal heater layer and thermal sensor that are in close proximity to the liquid crystals to provide efficient heating and temperature sensing.
摘要:
An inclinometer which is compatible for use with night vision equipment on aircraft and other vehicles. The inclinometer includes a white zirconia sphere movable within a damping liquid of a liquid capsule.