ACX306BKM SONY [Sony Corporation], ACX306BKM Datasheet - Page 16

• Manufacturer Part Number: ACX306BKM
• Description: 3.86cm (1.5-type) NTSC/PAL Color LCD Panel Module with LED 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
• 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 ± 2.5V
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 ± V
CR = L (White)/L (Black)
LED backlight
DD
= 12.0V, VIH = 3.0V, VREF = 1.5V
Drive Circuit
AC
Light receptor lens
[V] (V
Surface A
15mA
LCD panel
A
AC
: signal amplitude)
Light Source
Light
Source
V
Surface A
Surface A
Constant
current circuit
Optical fiber
Measure using the discrete LCD panel.
Luminance
Meter
Optical fiber
AC
– 16 –
= 4.0V.
Spectroscope
TOPCON BM-5A luminance meter
Surface A: See the Package Outline.
Light Detector
AC
Measurement
Equipment
= 0.5V.
ACX306BKM