DaKandEKid
New Member
I have a two 4x20 LCD's.
One has a EL backlight and the other has an LED backlight.
The LED LCD draws 375mA @ 4.2V = 1.575 Watts
This seems like a lot to me. Considering a regular led is about 20mA @ 1.5V = .03 Watts
That implies that their is either 1.575/.03 = 52.5 LEDs in the Backlight or there is some horrible inefficiency in some type of voltage step up or down.
Additionally, Is there any other display technlogy for viewing text in a potentially dark room with much lower power consumption?
One has a EL backlight and the other has an LED backlight.
The LED LCD draws 375mA @ 4.2V = 1.575 Watts
This seems like a lot to me. Considering a regular led is about 20mA @ 1.5V = .03 Watts
That implies that their is either 1.575/.03 = 52.5 LEDs in the Backlight or there is some horrible inefficiency in some type of voltage step up or down.
Additionally, Is there any other display technlogy for viewing text in a potentially dark room with much lower power consumption?