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LCX020BK

2. Optical Transmittance

Optical Transmittance (T) is given by the following formula (2).

T =

× 100 [%] ... (2)

L (White) is the same expression as defined in the "Contrast Ratio" section.

Optical transmittance is measured by System I.

3. Chromaticity

Chromaticity of the panel is measured by System I. Raster modes of each color are defined by the

representations at the input signal amplitude conditions shown in the table below. System I uses x and y of

the CIE standards as the chromaticity here.

4. V-T Characteristics

V-T characteristics, or the relationship between signal

amplitude and the transmittance of the panel, are

measured by System II by inputting the same signal

correspond to each voltage which defines 90%, 50%,

and 10% of transmittance respectively.

5. Half Tone Color Reproduction Range

The half tone color reproduction range of the LCD

panel is characterized by the differences between the

V-T characteristics of R, G and B. The differences of

these V-T characteristics are measured by System II.

System II defines signal voltages of each R, G and B

raster mode which correspond to 50% of transmittance,

formulas (3) and (4) respectively.

90

50

10

R input

G input

B input

R

G

B

0.5

4.5

4.5

4.5

0.5

4.5

4.5

4.5

0.5

(Unit: V)

100

50

0

G raster

B raster

R raster

L (White)

Luminance of Back Light