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PDF LQ170K1LW02 Data sheet ( Hoja de datos )
| Número de pieza | LQ170K1LW02 | |
| Descripción | TFT-LCD Module | |
| Fabricantes | Sharp | |
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LD-20309A-3
4.Input Terminals
4-1. TFT-LCD panel driving
CN1 (LVDS signals and +5.0V DC power supply)
Used connector:
DF14H-20P-1.25H (56) [HIROSE ELECTRIC Co.,Ltd]
Corresponding connector:
DF14-20S-1.25C (connector) [HIROSE ELECTRIC Co.,Ltd]
DF14-2628SCFA(terminal) [HIROSE ELECTRIC Co.,Ltd]
Used LVDS receiver: Type with built-in control IC (THC63LVDF84A[Thine] equivalent device)
Corresponding LVDS transmitter: THC63LVDM83R[Thine] or equivalent device
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
[Note1]
Symbol
Function
Remark
VCC
VCC
GND
+5.0V power supply
+5.0V power supply
GND
GND
GND
RXIN0-
Receiver signal, CH0 (-)
LVDS
RXIN0+
Receiver signal, CH0 (+)
LVDS
GND
GND
RXIN1-
Receiver signal, CH1 (-)
LVDS
RXIN1+
Receiver signal, CH1 (+)
LVDS
GND
GND
RXIN2-
Receiver signal, CH2 (-)
LVDS
RXIN2+
Receiver signal, CH2 (+)
LVDS
GND
GND
RXCKIN-
Receiver signal, CK (-)
LVDS
RXCKIN+
Receiver signal, CK (+)
LVDS
GND
GND
RXIN3-
Receiver signal, CH3 (-)
LVDS
RXIN3+
Receiver signal, CH3 (+)
LVDS
GND
GND
LVDS_SET
LVVDS_SET
[Note1]
Relation between LVDS signals and actual data shows below section (4-2)
5 Page 
LD-20309A-9
6-2. Backlight driving
The backlight system is an edge-lighting type with 4 CCFT (Cold Cathode Fluorescent Tube).
The characteristics of single lamp are shown in the following table.
Parameter
Symbol Min.
Typ. Max.
Unit
Remark
Lamp current range
Lamp voltage
IL 11.0 12.0 13.0 mArms [Note1, 4]
VL - 750 - Vrms Ta=25 ,IL=6.0mArms
[Note4]
Lamp power consumption PL
- 5.0 -
W [Note2] IL=6.0mArms
Lamp frequency
FL
40
50 60
kHz [Note3, 4]
Kick-off voltage
Vs -
- 1400 Vrms Ta=0 oC [Note4]
Lamp life time
TL (25000)
-
- hour [Note5]
[Note1] A lamp can be light in the range of lamp current shown above.
Maximum rating for current is measured by high frequency current measurement equipment
connected to VLOW at circuit showed below.
(Note : To keep enough kick-off voltage and necessary steady voltage for CCFT.)
Lamp frequency : 40 60kHz
Ambient temperature : 0 50
[Note2] Referential data per one CCFT by calculation ( IL
The data don’t include loss at inverter.
VL ) .
[Note3] Lamp frequency may produce interference with horizontal synchronous frequency, and this may
cause beat on the display. Therefore lamp frequency shall be detached as much as possible from the
horizontal synchronous frequency and from the harmonics of horizontal synchronous to avoid
interference.
[Note4] The backlight specification is a value when it uses the inverter of an equal performance with
ZSAZ566PA(NICHICON CORPORATION).
[Note5] Above value is applicable when lamp (the long side of LCD module) is placed horizontally.
(Landscape position)
Lamp life time is defined as the time when either or occurs in the continuous operation
under the condition of Ta=25 and IL=6.0 mA rms.
Brightness becomes 50% of the original value under standard condition.
Kick-off voltage at Ta=0 exceeds 1400 Vrms value.
(Lamp lifetime may vary if lamp is in portrait position due to the change of mercury density inside
the lamp.)
[Note] The performance of the backlight, for example lifetime or brightness, is much influenced by the
characteristics of the DC-AC inverter for the lamp. When you design or order the inverter, please
make sure that a poor lighting caused by the mismatch of the backlight and the inverter (miss-lighting,
flicker, etc.) never occurs. When you confirm it, the module should be operated in the same condition
as it is installed in your instrument.
Use the lamp inverter power source incorporating such safeguard as overvoltage / overcurrent
protective circuit or lamp voltage waveform detection circuit, which should have individual control of
each lamp.
In case one circuit without such individual control is connected to more than two lamps, excessive
current may flow into one lamp when the other one is not in operation.
Under the environment of 10lx or less, miss-lighting or lighting delay may occur.
11 Page | ||
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