Abstract:
Solar powered display assemblies and systems and methods related to the same are provided. A solar energy harvesting device is located above, and spaced apart from, a housing for an electronic display by way of at least one support member. The solar energy harvesting device is electrically connected to the electronic display. The housing defines a first footprint and the solar energy harvesting device defines a second footprint which is larger than the first footprint. The solar energy harvesting device is positioned to at least periodically cast shade on the electronic display.
Abstract:
Systems and methods are provided for monitoring the status of a touchscreen (102) at a display assembly (100). Signals are transmitted to the touchscreen (102). Where signals to the touchscreen (102) are interrupted for at least a predetermined amount of time, a type and location of damage are identified. A visual representation (130) reflecting the type and location of damage at the touchscreen (102) is generated.
Abstract:
The exemplary embodiments herein provide a method and system for controlling the luminance of an electronic display, including determining the sunset and sunrise times for the day and determining whether the present time is between sunrise and sunset or between sunset and sunrise. The backlight may be driven at a daytime level if the present time is between sunrise and sunset, while the backlight may be driven at a nighttime level if the present time is between sunset and sunrise. In some embodiments, a microprocessor may process artificial ambient sensor (AAS) data to determine the desired backlight or display luminance. The AAS data may be adjusted for a sunset or sunrise transition time, as well as for an approximate percentage of cloud cover in the sky.
Abstract:
The exemplary embodiments herein provide a figure eight closed loop of circulating gas pathways wrapping around an electronic display. One or more open loop ambient air pathways may pass through the figure eight but do not allow the circulating gas and the ambient air to mix. In some embodiments, the open loop ambient air pathway travels along a rear surface of the electronic display. In some embodiments, the circulating gas pathways contain a front channel placed in front of the electronic display, a rear channel placed behind the electronic display, and a center channel placed between the front and rear channels. Pass-through apertures may be placed within the path of the circulating gas and/or the ambient air to allow the paths of the two gaseous matters to cross without allowing them to mix with one another.
Abstract:
A system for powering an LED backlight where power assemblies have electrical communications ran through pass through apertures in a mounting plate and LED backlight panel. A channel may be defined between the mounting plate and the LED backlight panel (or optional thermal plate attached to the rear portion of the LED backlight panel). Sub-channels can be created within the channel which are defined by ribs which connect between the mounting plate and the LED backlight panel (or optional thermal plate attached to the rear portion of the LED backlight panel). Cooling air can be prevented from entering one or more specific sub-channels so that electrical connections can pass through the mounting plate, LED backlight panel, and sub¬ channel without the risk of cooling air contaminates entering one of the pass through apertures.
Abstract:
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').
Abstract:
Assemblies, systems, and methods for providing proof of play information for images displayed at electronic display assemblies (14) are provided. A unit controller (18) is electronically interposed between a media player (25) and an electronic display (15) of an electronic image assembly (14). The unit controller (18) includes a proof of play module (28) that records certain image-related data transmitted from the media player (25) to the electronic display (15) for proof of play purposes.
Abstract:
A LCD assembly having a dynamic dimming LCD backlight and a plurality of individual LCD displays positioned in front of the backlight, and a method for controlling a backlight of such an assembly. The backlight is divided into an array of individually controllable subsections, and adjacent edges of the LCD displays are used to define virtual boundary lines relative to the backlight subsections. Initial desired luminance values are determined for each subsection of the backlight based on incoming video data. A difference between desired luminance values for each pair of adjacent backlight subsections that border the virtual boundary lines is calculated and compared to a threshold value. Based on the comparisons, adjustments may be made to the desired luminance value of the backlight subsections.
Abstract:
Exemplary embodiments disclosed herein provide a rigid LCD assembly including a LCD having a perimeter, a first layer of tape around the perimeter of the LCD, and a diffusing plate attached to the later of tape so as to create a cavity defined by the space between the LCD, tape, and diffusing plate. One or more optical films may be inserted into the cavity, and while constricted in directions perpendicular to the films, the films may be free to move slightly in the directions parallel to the films. A U-shaped backlight wall may attach to the diffusing plate and would contain a backlight. An optional thermal plate can be attached to the backlight wall, which can be used with a second thermal plate to define a channel for accepting cooling air.
Abstract:
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 a ), an image signal processor which accepts S a and an encoded image signal (S e ) and generates a pre-decoding image signal (S p ), and an image signal decoder which accepts Sp and generates a decoded image signal for the display. The environmentally-reactive control signal (S a ) may contain the instantaneous value of the desired display black level S b . Alternatively or additionally, the environmentally-reactive control signal (S a ) may contain a signal linearity modification value.