displays have a full reflector. They cannot be backlit. It is necessary
to use type under ambient light condition. In this condition, they
offer the lowest power option and the best contrast. They are not
available in “negative image”.
displays combine the features of reflective and transmissive modes.
These positive image displays can be read in all lighting conditions.
The backlight can be turned on for low light levels or operated
continuously to add the light-emitting look to a product.
displays are usually backlit for best readability. They can be used
in well lit indoor conditions to dark environments, typically not
recommended for daylight usage. They offer a different appearance
than typical LCDs, bringing a light emitting look to the product.
* In case of B, no reflector is used.
* A backlight is always used.