The offered large LED displays are designed for displaying alphanumeric data (numeric data or text including Czech characters). Displays are supplied as standard as three-colour (red/green/yellow), but it is possible to provide a single-colour version or other colour combination (blue-red or RGB – full colour) upon agreement.
The display size is determined by the number of LED modules installed. The individual LED modules carry LEDs arranged in a matrix of 16 rows x 32 columns: the LED module therefore contains 512 pixels and 1024 LEDs, as each pixel is made up of one green and one red LED.
The basic display size is 96 x 16 pixels (i.e. three LED modules side by side).
The pixel spacing is 10 mm in both horizontal and vertical directions. The 96 x 16-pixel display has a display area of 96 x 16 cm and is therefore capable of displaying a font approximately 14 cm high (commonly used fonts do not use the full height of the display for most fonts). For a font height of 14 cm, a legibility of 50 – 60 metres is indicated.
The displays, with a pair of LED modules on top of each other, are capable of displaying characters up to 28 cm high and their text is readable up to 110 metres.
The displayed data can be formatted with several fonts, it is possible to display parts of the text in red, green or yellow. Depending on the communication protocol used, it is possible to trigger a running or flashing text effect.
The brightness of the display is sufficient for outdoor use on a sunny day, but it is not recommended to mount the display so that direct sunlight hits the display area: we are unnecessarily depriving ourselves of the available display contrast.
The luminance of green LED elements is 4000 nits (Cd/m2), red LED elements 2500 nits, when displayed in yellow the total luminance is 6500 nits. The displays are equipped with brightness control, i.e. the brightness of the display can be reduced in the dark or indoors. Displays are intended for displaying text information – they are not intended for (particularly long term or continuous) operation with more than 25% of the light points illuminated.