Fig. 10.2.

Optical measurement system setup

Note 3: Definition of Response time:

The respons

e 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.

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