Display Performance
The standard display switches from bright gray to dark blue and vice versa.
Yes. We offer various nuances of red, green and magenta. We can also develop custom displays to match your corporate colors, brand, or similar. Please contact us and let us know your requirements.
We have no black and white displays available. Only lab-scale samples. Contact us for more information.
Yes. The entire display stack is printed with conventional printing equipment. Adding one additional layer is very convenient.
The standard display has a retention time of 20 minutes before a small refresh pulse is required. However, we can optimize the display for shorter or longer retention time with small modifications to the structure. In this way, we can achieve retention times ranging from a few seconds up to days. Contact us for more information.
Typically 200 ms at 3V.
Lifetime and Environmental Stability
The lifetime of the display is directly correlated with the number of switching cycles that are performed. One switching cycle is counted when the display is switched from OFF -> ON -> OFF. The degradation of the display is caused when a voltage is applied to turn the display off (from colored to bright state). Close to no degradation is caused if the display is constantly on (colored) or when it is constantly off (bright state). With accurate driving, the lifetime will exceed 100 000 switching cycles.
The temperature range is from -20 to +80 degrees Celsius.
The displays are not sensitive to UV.
The display operates in conditions where the relative humidity (RH) is in the range of 5-95%.
General Technology Questions
No. The rdot display and E Ink display are fundamentally different technologies. They both share the same principle of being reflective display technologies, meaning that they reflect ambient light and that no backlight is needed. E Ink is an electrophoretic technology. The Rdot Display is utilizing organic electrochromic materials.
Passive matrix is under development, read more here.