ACX301AKM SONY [Sony Corporation], ACX301AKM Datasheet - Page 16

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

<Panel/Module/Backlight Electro-optical Characteristics Measurement>
1. Contrast Ratio
Basic measurement conditions
(1) Driving voltage
(2) Measurement temperature
(3) Measurement point
(4) Measurement systems
(5) R, G and B input signal voltage Vsig
• Measurement system I
Low voltage side
• Measurement system II
• Measurement system III
Contrast ratio (CR) is given by the following formula.
L (White): Surface luminance of the TFT-LCD panel at the input signal amplitude V
L (Black): Surface luminance of the panel at V
Both luminosities are measured by System I.
HV
VVC = 5.5V, VCOM = 5.1V, Vpsig = 5.5
25°C unless otherwise specified.
One point in the center of the screen unless otherwise specified.
Three types of measurement systems are used as shown below.
Vsig = 5.5
CR = L (White)/L (Black)
DD
Backlight
Drive Circuit
= 12.0V, VV
V
AC
Light receptor lens
[V] (V
2.4mA
Surface A
DD
A
LCD panel
= 12.0V, VIH = 3.0V, VREF = 1.5V
AC
: signal amplitude)
Source
Light
13585A
Source
Light
Surface A
Surface A
Optical fiber
Measure using the discrete LCD panel.
Luminance
Meter
Optical fiber
2.5V
AC
– 16 –
= 4.0V.
DC
Using the Stanley 13585A inverter.
Spectroscope
Using the TOPCON BM-5A luminance meter.
Surface A: See the Package Outline.
Light Detector
AC
Measurement
Equipment
= 0.5V.
ACX301AKM