ACX301AKM SONY [Sony Corporation], ACX301AKM Datasheet - Page 17

• Manufacturer Part Number: ACX301AKM
• Description: 5.1cm (2.0 Type) NTSC/PAL Color LCD Panel (Module with Backlight)
• Manufacturer: SONY [Sony Corporation]

2. Optical Transmittance of Panel Block, Module Center Luminance, Color Temperature
3. Chromaticity
4. V-T Characteristics
5. Half Tone Color Reproduction Range
Optical transmittance (T) is given by the following formula.
L (White) is the same expression as defined in the "Contrast Ratio" section.
Optical transmittance is measured by System I using the TOPCON BM-5A.
Chromaticity of the panels 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.
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
amplitude V
correspond to the voltages which define 90%, 50%,
and 10% of transmittance respectively.
The half tone color reproduction range of LCD panels
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,
V
that is to say the differences between V
and between V
formulas respectively.
50R
T = L (White)/Luminance of Backlight
Lm = White luminance at the center of the panel
Tcm = Color temperature at the center of the panel
Raster
V
V
, V
50RG
50BG
50G
= V
= V
and V
AC
50B
50R
50B
W
R
G
B
to each input pin. V
– V
– V
50B
and V
50G
50G
Signal amplitudes (V
, respectively. V
R input
50G
0.5
4.0
4.0
0.0
, are given by the following
90
50RG
, V
G input
50R
AC
4.0
0.5
4.0
0.0
50
100 [%]
and V
) supplied to each input
, and V
and V
– 17 –
50BG
50G
10
,
B input
4.0
4.0
0.5
0.0
(Unit: V)
100
90
50
10
50
0
R raster
V
V
AC
AC
– Signal amplitude [V]
– Signal amplitude [V]
V
50R
V
V
50G
90
V
50B
V
50
V
V
50RG
V
50BG
10
G raster
B raster
ACX301AKM