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REVISION HISTORY
Version Date Section Description
Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
Ver 1.0
Jan,13, 09’
M185B1-L06 Preliminary specification was first issued.
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1. GENERAL DESCRIPTION
1.1 OVERVIEW
M185B1-L06 is a 18.5” TFT Liquid Crystal Display module with 2 CCFL Backlight unit and 30pin
1ch-LVDS interface. This module supports 1366 x 768 WXGA mode and can display up to 16.7M colors.
The inverter module for Backlight is not built in.
1.2 FEATURES
- Contrast ratio 700:1
- Response time 5ms.
- Brightness 200nits
- Color saturation NTSC 72%.
- WXGA (1366 x 768 pixels) resolution.
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
- DE (Data Enable) only mode.
- LVDS (Low Voltage Differential Signaling) interface.
- RoHS compliance.
1.3 APPLICATION
- TFT LCD Monitor
1.4 GENERAL SPECIFICATI0NS
ItemSpecification UnitNote
Active Area 409.8 (H) × 230.4(V) (18.5” diagonal) mm
Bezel Opening Area 413.4(H) x 234 (V) mm
Driver Element a-Si TFT active matrix - -
Pixel Number 1366 x R.G.B. x 768 pixel -
Pixel Pitch 0.3 (H) x 0.3 (V) mm -
Pixel Arrangement RGB vertical stripe - -
Display Colors 16.7Mcolor -
Transmissive Mode Normally White - -
Surface Treatment AG type, 3H hard coating, Haze 25 - -
Module Power Consumption 13.85Watt (2)
Note (2) Please refer to sec. 3.1 & 3.2 in this document for more information of power consumption.
(1)
1.5 MECHANICAL SPECIFICATIONS
ItemMin.Typ. Max.UnitNote
Horizontal(H) 429.87 430.37 430.87 mm
Module Size
Note (1) Please refer to the attached drawings for more information of front and back outline dimensions.
Vertical(V) 254.1 254.6 255.1 mm
Depth(D) 15.75 16.25 16.75 mm
Weight - 1950 2000 g -
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A
2. ABSOLUTE MAXIMUM RATINGS
2.1 ABSOLUTE RATINGS OF ENVIRONMENT
ItemSymbol
Storage Temperature TST -20 60 ºC (1)
Operating Ambient Temperature TOP 0 50 ºC (1), (2)
Shock (Non-Operating) S
Vibration (Non-Operating) V
Note (1) Temperature and relative humidity range is shown in the figure below.
(a) 90 %RH Max. (Ta Љ 40 ºC).
(b) Wet-bulb temperature should be 39 ºC Max. (Ta > 40 ºC).
(c) No condensation.
Note (2) The temperature of panel display surface area should be 0 ºC Min. and 60 ºC Max.
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
Value
Min.Max.
- 50 G (3), (5)
NOP
- 1.5 G (4), (5)
NOP
UnitNote
Relative Humidity (%RH)
100
90
80
60
Operating Range
40
20
10
Storage Range
8060-20 40 0 20 -40
Temperature (C)
Note (3) 50G,11ms, half sine wave, 1 time for ± X, ± Y, ± Z.
Note (4) 10 ~ 300 Hz, 10min/cycle, 3 cycles each X, Y, Z.
Note (5) At testing Vibration and Shock, the fixture in holding the module has to be hard and rigid enough
so that the module would not be twisted or bent by the fixture.
The fixing condition is shown as below:
t Room Temperature
Side Mount Fixing Screw
Gap=2mm
Bracket
LCD Module
Side Mount Fixing Screw
Stage
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2.2 ELECTRICAL ABSOLUTE RATINGS
2.2.1 TFT LCD MODULE
ItemSymbol
Power Supply Voltage Vcc -0.3 +6.0 V (1)
2.2.2 BACKLIGHT UNIT
ItemSymbol
Lamp Voltage VL - 2.5K V
Lamp Current IL 2.0 8.0 mA
Lamp Frequency FL 40 80 KHz
Note (1) Permanent damage to the device may occur if maximum values are exceeded. Function operation
should be restricted to the conditions described under Normal Operating Conditions.
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Value
Min.Max.
Value
Min.Max.
Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
UnitNote
UnitNote
(1), (2), IL = 7.5mA
RMS
RMS
(1), (2)
Note (2) Specified values are for lamp (Refer to 3.2 for further information).
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
3. ELECTRICAL CHARACTERISTICS
3.1.1 TFT LCD MODULE Ta = 25 ± 2 ºC
Parameter Symbol
Min.Typ. Max.
Power Supply Voltage Vcc 4.5 5.0 5.5 V -
Ripple Voltage VRP - - 100 mV -
Rush Current I
RUSH
- 3 A (2)
White - 0.440.6A(3)a
Power Supply Current
Black - 0.580.9A(3)b
Vertical Stripe
lcc
- 0.6 0.9 A (3)c
Power Consumption - 3.0 4.5 Watt (4)
LVDS differential input voltage Vid 100 - 600 mV
LVDS common input voltage Vic - 1.2 - V
Note (1) The module should be always operated within above ranges.
Note (2) Measurement Conditions:
Value
UnitNote
(High to Low)
(Control Signal)
SW
+12V
+5.0V
R1
47K
R2
1K
47K
VR1
C1
1uF
Q1 2SK1475
C2
0.01uF
Q2
2SK1470
FUSE
C3
1uF
Vcc
(LCD Module Input)
Vcc rising time is 470μs
Vcc
0.9Vcc
0.1Vcc
GND
470μs
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≤≤≤
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
Note (3) The specified power supply current is under the conditions at Vcc = 5.0 V, Ta = 25 ± 2 ºC, f
Hz, whereas a power dissipation check pattern below is displayed.
a. White Pattern
Active Area
c. Vertical Stripe Pattern
b. Black Pattern
Active Area
R
G
R
B
G
B
B
R
R
G
G
B
B
R
= 60
v
R
B
G
RR
G
Active Area
Note (4) The power consumption is specified at the pattern with the maximum current.
3.1.2 Vcc Power Dip Condition:
Vcc
4.5V
4.0V
Td
Dip condition:
msTdVVccV20,5.40.4
B
B
R
G
G
B
B
R
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
3.2 BACKLIGHT UNIT Ta = 25 ± 2 ºC
Parameter Symbol
Min.Typ. Max.
Lamp Input Voltage VL --- 760 836 V
Lamp Current IL 2.0 7.5 8.0 mA
Lamp Turn On Voltage V
S
--- ---
--- ---
Operating Frequency FL 40 --- 80 KHz (3)
Lamp Life Time LBL 40000 --- --- Hrs (5), IL= 7.5mA
Power Consumption PL --- 10.85 --- W (4), IL = 7.5 mA
Note (1) Lamp current is measured by current amplify & oscilloscope as shown below:
Value
1680(0к)
1460(25к)
UnitNote
I
RMS
(1)
RMS
V
(2)
RMS
(2)
V
RMS
Preliminary
= 7.5 mA
L
HV+ (Pink)
LV (White)
LCD
Module
HV- (Pink)
LV (White)
Current
1
2
A
Inverter
Current
Amplify
1
2
A
Oscilloscope
Probe
Measure equipment:
Current Amplify: Tektronix TCPA300
Current probe: Tektronix TCP312
Oscilloscope: TDS3054B
Note (2) The voltage that must be larger than Vs should be applied to the lamp for more than 1 second
after startup. Otherwise, the lamp may not be turned on normally. It is the value output voltage of
NF circuit.
Note (3) The lamp frequency may produce interference with horizontal synchronization frequency from the
display, which might cause line flow on the display. In order to avoid interference, the lamp
frequency should be detached from the horizontal synchronization frequency and its harmonics as
far as possible.
Note (4) P
VL 2 (for 2 lamps)
= I
L
L
Note (5) The lifetime of lamp can be defined as the time in which it continues to operate under the condition
Ta = 25 2
o
C and( IL = 7.5 mArms )until one of the following events occurs:
(a) When the brightness becomes Љ 50% of its original value.
(b) When the effective ignition length becomes 80% of its original value.Љ
(The effective ignition length is a scope that luminance is over 80% of that at the center point.)
Note (6) The waveform of the voltage output of inverter must be area-symmetric and the design of the
inverter must have specifications for the modularized lamp. The performance of the Backlight,
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such as lifetime or brightness, is greatly influenced by the characteristics of the DC-AC inverter for
the lamp. All the parameters of an inverter should be carefully designed to avoid producing too
much current leakage from high voltage output of the inverter. When designing or ordering 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. If the above situation is confirmed, the module
should be operated in the same manners when it is installed in your instrument.
The output of the inverter must have symmetrical (negative and positive) voltage waveform and
symmetrical current waveform.(Unsymmetrical ratio is less than 10%) Please do not use the inverter
which has unsymmetrical voltage and unsymmetrical current and spike wave. Lamp frequency may
produce interface with horizontal synchronous frequency and as a result this may cause beat on the
display. Therefore lamp frequency shall be as away possible from the horizontal synchronous
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
frequency and from its harmonics in order to prevent interference.
Requirements for a system inverter design, which is intended to have a better display performance, a
better power efficiency and a more reliable lamp. It shall help increase the lamp lifetime and reduce its
leakage current.
a. The asymmetry rate of the inverter waveform should be 10% below;
b. The distortion rate of the waveform should be within Ѕ2 ± 10%;
c. The ideal sine wave form shall be symmetric in positive and negative polarities
* Asymmetry rate:
I p
I -p
| I
* Distortion rate
I
– I –p | / I
p
(or I –p) / I
p
rms
rms
* 100%
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4. BLOCK DIAGRAM
4.1 TFT LCD MODULE
(STM MSAKT2407P30A
INPUT CONNECTOR
RX0(+/-)
RX1(+/-)
RX2(+/-)
RX3(+/-)
RXC(+/-)
NC
or EQUIVALENT)
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LVDS INPUT /
TIMING CONTROLLER
Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
SCAN DRIVER IC
TFT LCD PANEL
(1366x3x768)
DATA DRIVER IC
GND
Vcc
VL
LAMP CONNECTOR
(YEONHO 35001HS-02L)
4.2 BACKLIGHT UNIT
DC/DC CONVERTER &
REFERENCE VOLTAGE
BACKLIGHT UNIT
1 HV(Pink)
2 LV(White)
1 HV(Pink)
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5. INPUT TERMINAL PIN ASSIGNMENT
5.1 TFT LCD MODULE
PinName Description
1 NC Not connection, this pin should be open.
2 NC Not connection, this pin should be open.
3 NC Not connection, this pin should be open.
4 GND Ground
5 RX0- Negative LVDS differential data input. Channel 0
6 RX0+ Positive LVDS differential data input. Channel 0
7 GND Ground
8 RX1- Negative LVDS differential data input. Channel 1
9 RX1+ Positive LVDS differential data input. Channel 1
10 GND Ground
11 RX2- Negative LVDS differential data input. Channel 2
12 RX2+ Positive LVDS differential data input. Channel 2
13 GND Ground
14 RXCLK- Negative LVDS differential clock input.
15 RXCLK+ Positive LVDS differential clock input.
16 GND Ground
17 RX3- Negative LVDS differential data input. Channel 3
18 RX3+ Positive LVDS differential data input. Channel 3
19 GND Ground
20 NC Not connection, this pin should be open.
21 NC Not connection, this pin should be open.
22 NC Not connection, this pin should be open.
23 GND Ground
24 GND Ground
25 GND Ground
26 Vcc +5.0V power supply
27 Vcc +5.0V power supply
28 Vcc +5.0V power supply
29 Vcc +5.0V power supply
30 Vcc +5.0V power supply
Note (1) Connector Part No.: STM MSAKT2407P30A or equivalent
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Model No.: M185B1-L06
Preliminary
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5.2 LVDS mapping table
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Issued Date: Jan. 13, 2009
Model No.: M185B1-L06
Preliminary
LVDS Channel 0
LVDS Channel 1
LVDS Channel 2
LVDS Channel 3
LVDS output D7 D6 D4 D3 D2 D1 D0
Data order G0 R5 R4 R3 R2 R1 R0
LVDS output D18 D15 D14 D13 D12 D9 D8
Data order B1 B0 G5 G4 G3 G2 G1
LVDS output D26 D25 D24 D22 D21 D20 D19
Data order DE NA NA B5 B4 B3 B2
LVDS output D23 D17 D16 D11 D10 D5 D27
Data order NA B7 B6 G7 G6 R7 R6
5.3 BACKLIGHT UNIT:
PinSymbolDescription Remark
1 HV High Voltage Pink
2 LV Low Voltage White
Note (1) Connector Part No.: YEONHO 35001HS-02L or equivalent
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5.4 COLOR DATA INPUT ASSIGNMENT
The brightness of each primary color (red, green and blue) is based on the 8-bit gray scale data input for
the color. The higher the binary input, the brighter the color. The table below provides the assignment of