Topway LCD

LCD model: LM6023ADW

 * manufacturer : Topway

Tested temperature Range : -8 to 40

 * The contrast becomes dimmer when Temperature is lower than 5 degree
 * The contrast becomes brigher when Temperature is hight than 35 degree

life time

 * normal backlight as 40,000hrs, dim down backlight as 90,000hrs

5V LCD to 3.3V LCD

 * connect JP3
 * disconnect JP2
 * place a 4.7uF cap onto C10.
 * remove R7.

3.3V LCD to 5V LCD

 * disconnect JP3
 * connect JP2
 * remove C10
 * place 500 ohm onto R7. (arounnd 10% brightness of original)