TM121XG_02L10 TORiSAN, TM121XG_02L10 Datasheet - Page 5

• Manufacturer Part Number: TM121XG_02L10
• Description: LCD_Module
• Manufacturer: TORiSAN

[Note 7] Measurement points
Tottori SANYO Electric Co., Ltd.
[Note 8] Measurement condition
[Note 1] Backlight driving conditions (operating frequency f
[Note 2] The inverter open voltage should be large than start up voltage, otherwise backlight
[Note 3] If driving current waveform is asymmetrical, mercury deviation inside of CFL will
BACKLIGHT CHARACTERISTICS
CFL voltage
CFL current
Operating frequency
Start up voltage
CFL life time
I
I
1/6V
1/2V
5/6V
-p
p
ITEM
horizontal frequency f
Therefore the operating frequency f
frequency f
may blinking for a moment after turns on or not be turned on.
And this voltage should be applied to lamp for more than 1 second to start up,
otherwise backlight may not be turned on.
incline to one side and consequently abnormal lighting may occur.
To prevent such unfavorable lighting, driving current waveform is asked to have
unbalance rate of less than 10% and wave-height rate of less than 2 +/- 10%.
And this driving waveform shall be confirmed in your system.
(1) Measurement equipment: BM-5A (TOPCON Corp.), Field=2 degree
(2) Ambient temperature Ta: 25 +/- 2 degC
(3) LCD: All pixels are WHITE, V
(4) Measure after 30 minutes of CFL warm up.
(5) I
Current waveform
L
=6.0 mArms with the CFL inverter CXA-L0612A-VJL (TDK).
H
1/6H
to avoid interference.
SYM. CONDITIOS MIN
t
V
V
OL
f
I
1
4
L
L
S
L
1/2H
H
, causing the beat or flicker on the display.
3
5/6H
Vp: Total Number of Vertical pixel
Hp: Total Number of horizontal pixel
2
5
10000
(40)
3.0
-
-
L
DD
TM121XG-02L10
shall be adjusted in relation to horizontal
=3.3V, f
(560)
Unbalance rate = | I
Wave-height rate = I
TYP
(60)
-
-
-
I
I
I
p
-p
L
Active area
(1300)
V
MAX
(65)
: High peak value
: Low peak value
: Effective value
6.0
=60Hz
-
-
L
especially) may interfere with
mArms
UNIT
Vrms
Vrms
kHz
hrs
p
p
- I
(or I
-p
Ver.3
at I
(Recommended value)
(Recommended value)
at Ta=0 degC
at I
| / I
-p
L
L
) / I
=6.0mArms
=6.0 mArms
L
x 100 (%)
L
NOTE
Ta=25 degC
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