Produktbeskrivning

NEC Display Wall Calibrator system will automatically adjust multiple displays used in a video wall so that the color characteristics closely match, thereby creating the visual illusion of a single large display. In order to accomplish this, the color characteristics of each display must be individually measured and compared to all of the other displays in the video wall. The optimal settings for each display can then be calculated so that all the displays will match after calibration.

Since each display will vary in both color and intensity (brightness), due to aging, individual components and tolerances, it is necessary to find the lowest common denominator that all of the displays are capable of collectively achieving. In other words, the video wall can only be as bright as the dimmest individual display. The color characteristics of each display are measured using a color sensor, which is connected via USB to a host PC. The sensor is placed on the screen and a series of test patterns is generated and measured. This process is repeated for all displays.

 

Egenskaper

Automatic calibration
NEC Display Wall Calibrator communicates with the display monitors directly using either RS232 or a LAN (Ethernet) connection. All adjustments to the display settings are performed automatically using this communications link. It is not necessary to manually configure the displays as all of the necessary settings are made by the software.

Internal test patterns
Displays are calibrated using internally generated test patterns. This simplifies the operation by allowing calibration to be performed automatically without having to manually select different test patterns during the calibration process, and without the need to connect a PC to the video input of the displays.

10-bit internal Look Up Tables (LUTs)
Each LCD display monitor supported by NEC Display Wall Calibrator features three internal 10-bit LUTs. These tables allow very precise adjustments to be made to the display's tone response curve without reducing the number of displayable colors or introducing color banding artifacts.

Gamma correction
As well as adjusting the intensity (luminance) and white point of the displays, the software will also calibrate the grayscale using the internal LUTs of the displays. This means that highly accurate color can be achieved not only at 100% white, but at all steps along the grayscale. A variety of different tone response curves can be applied also, from something as simple as a small simple gamma value to complex custom curves.

Flexible connections
Displays can be connected using RS232, LAN, or in combinations of both, to the host PC used to perform the calibration. By using a wireless equipped host PC and LAN, displays can be calibrated without making any physical connections to the host PC.

Multiple calibration sets
Different display monitor calibration projects can be uploaded to each group of displays allowing quick and easy switching between different calibration settings without the need to recalibrate each display.

Flexible solution
NEC Display Wall Calibrator provides many features and options that make it flexible enough to be used in a large variety of video applications, including "on set" use in TV studios and full DICOM support for medical imaging.

Colorimeter function
The software features a Colorimeter function which allows direct measurements to be taken by the color sensor and the results displayed in a variety of different formats.