ACX306AK
<Electro-optical Characteristics Measurement>
Basic measurement conditions
(1) Driving voltage
VDD = 12.0V, VIH = 3.0V, VREF = 1.5V
VVC = 6.0V, VCOM = 5.5V, Vpsig = 6.0 ± 2.5V
(2) Measurement temperature
25°C unless otherwise specified.
(3) Measurement point
One point in the center of the screen unless otherwise specified.
(4) Measurement systems
Three types of measurement systems are used as shown below.
(5) R, G and B input signal voltage Vsig
Vsig = 6.0 ± VAC [V] (VAC: signal amplitude)
• Measurement system I
Surface A
Luminance
Meter
Using the TOPCON BM-5A luminance meter.
Backlight
LCD panel
E13585A
Using the Stanley E13585A inverter.
DC6.0V
• Measurement system II
Optical fiber
Measurement
Equipment
Light receptor lens
Light Detector
Surface A
Measure using the discrete LCD panel.
Drive Cirucuit
Light Source
• Measurement system III
Light
Source
Optical fiber
Spectroscope
Surface A
Surface A: See the Package Outline.
1. Contrast Ratio
Contrast ratio (CR) is given by the following formula.
CR = L (White)/L (Black)
L (White): Surface luminance of the TFT-LCD panel at the input signal amplitude VAC = 0.5V.
L (Black): Surface luminance of the panel at VAC = 4.0V.
Both luminosities are measured by System I.
– 14 –
SONY [ SONY CORPORATION ]
