ACX306 SONY [Sony Corporation], ACX306 Datasheet - Page 14

• Manufacturer Part Number: ACX306
• Description: 3.86cm (1.5 Type) NTSC/PAL Color LCD Panel
• Manufacturer: SONY [Sony Corporation]

<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
• 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.
V
VVC = 6.0V, VCOM = 5.5V, Vpsig = 6.0
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 = 6.0
CR = L (White)/L (Black)
DD
Backlight
= 12.0V, VIH = 3.0V, VREF = 1.5V
Drive Cirucuit
V
AC
Light receptor lens
[V]
Surface A
LCD panel
(V
AC
: signal amplitude)
Light Source
Light
Source
E13585A
Surface A
Surface A
Optical fiber
Measure using the discrete LCD panel.
Luminance
Meter
Optical fiber
2.5V
AC
– 14 –
DC6.0V
= 4.0V.
Using the Stanley E13585A inverter.
Spectroscope
Using the TOPCON BM-5A luminance meter.
Surface A: See the Package Outline.
Light Detector
AC
Measurement
Equipment
= 0.5V.
ACX306AK