Datasheet

DEM 800480Q TMH-PW-N Production Specification
Version: 0 PAGE: 15
Fig. 6.2. Optical measurement system setup
Note 3: Definition of Response time:
The response time is defined as the LCD optical switching time interval between “White” state
and “Black” state. Rise time, Tr, is the time between photo detector output intensity changed
from 90%to 10%. And fall time, Tf, is the time between photo detector output intensity changed
from 10%to 90%
Black(TFT ON) White(TFT OFF)White(TFT OFF)
100%
90%
10%
0%
Display
Data
Note 4: Definition of contrast ratio:
The contrast ratio is defined as the following expression.
Luminance measured when LCD on the "White" state
Contrast ratio (CR) =
Luminance measured when LCD on the "Black" state
Note 5: White Vi = Vi50 ± 1.5V
Black Vi = Vi50 ± 2.0V
“±” means that the analog input signal swings in phase with VCOM signal.
“±” means that the analog input signal swings out of phase with VCOM signal.
The 100% transmission is defined as the transmission of LCD panel when all the input
terminals of module are electrically opened.
Note 6: Definition of color chromaticity (CIE 1931)
Color coordinates measured at the center point of LCD
Note 7: Measured at the center area of the panel when all the input terminals of LCD panel are
electrically opened.