A reflective display has no backlight, and uses ambient light to self-illuminate. Light passes through the glass and is reflected back out.
- Low power application
- Works great in direct sunlight
- Poor readability in low light conditions
Most TFT displays and negative LCD’s are transmissive. A negative LCD is where the characters are the colour of the backlight. The backlight is used to illuminate the display, If the backlight is off, the display will generally not be readable. The backlight fights against ambient light, so in direct sun, a backlight that is sunlight rated is required or the display will become washed out.
- Cost effective
- High availability
- In outdoor applications where ambient light is high or in direct sunlight
Transflective LCD’s and TFT’s have both reflective and transmissive characteristics. The display will use ambient light as well as a backlight. An example is a yellow/green backlit LCD. Very few TFT display are offered in transflective.
- Direct sunlight and flexibility in application
- Hight cost and availability in TFT