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Product Information
ISSUE DATE : 2004-06-21
MODEL : LTM170E8-L03
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Note : This Product information is subject to change after 3 months of issuing date.
Prepared by : LCD Business Technical Customer Service Team
Samsung Electronics Co . , LTD.
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Contents
General Description -------------------------- (3)
1. Absolute Maximum Ratings -------------------------- (4)
1.1 Absolute ratings of environment
1.2 Electrical Absolute Ratings
2. Optical Characteristics -------------------------- (6)
3. Electrical Characteristics -------------------------- (10)
3.1 TFT LCD Module
3.2 Back-light Unit
4. Block Diagram -------------------------- (13)
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4.1 TFT LCD Module
4.2 Back-light Unit
5. Input Terminal Pin Assignment -------------------------- (14)
5.1 Input Signal & Power
5.2 LVDS Interface (1)
5.3 LVDS Interface (2)
5.4 Back-light Unit
5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color
6. Interface Timing -------------------------- (21)
6.1 Timing Parameters (DE only mode)
6.2 Timing Diagrams of Interface Signal (DE only mode)
6.3 Power ON/OFF Sequence
7. Outline Dimension -------------------------- (24)
8. General Precaution -------------------------- (26)
8.1 Handling
8.2 Storage
8.3 Operation
8.4 Others
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General Description
* Description
LTM170E8-L03 is a color active matrix TFT (Thin Film Transistor) liquid crystal display
(LCD) that uses amorphous silicon TFTs as switching devices. This model is composed of
a TFT LCD panel, a driver circuit and a back-light system. The resolution of a 17.0" contains
1280 x 1024 pixels and can display up to 16.7 millions colors with wide viewing angles of
89° in all directions. (Vertical viewing angle : 178°, Horizontal viewing angle : 178°).
* Features
- High contrast ratio, high aperture structure
- PVA(Patterned Vertical Alignment) mode
- Wide viewing angle
- High speed response
- SXGA (1280 x 1024 pixels) resolution
- Low power consumption
- 2 dual CCFTs (Cold Cathode Fluorescent Tube)
- DE (Data Enable) mode
- LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
- Compact Size Design
* Applications
Workstation & desktop monitors
Display terminals for AV application products
Monitors for industrial machine
* General information
Items
Specification Unit Note
Display area 337.92(H) x 270.336(V) mm
Driver element a-Si TFT active matrix
Display colors 16.7M colors
Number of pixels 1280 x 1024 pixel
Pixel arrangement RGB vertical stripe
Pixel pitch 0.264(H) x 0.264(W) mm
Display mode Normally Black
Surface treatment Haze 44% , Hard-coating (3H)
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* Mechanical information
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Item
Horizontal(H) - (354.9) - mm
Module
size
Vertical(V) - (290.3) - mm
Depth(D) - - (16.5) mm
Weight - - (1,800) g
1. Absolute Maximum Ratings
1.1 Absolute ratings of environment
Item
Storage temperature T
Operating temperature
(Glass surface temperature)
Shock ( non - operating ) Snop - 50 G (2),(4)
Min. Typ. Max. Note
Symbol Min. Max. Unit Note
STG
T
OPR
-25 60
0 50
(1)
(1)
Vibration ( non - operating ) Vnop - 1.5 G (3),(4)
Note (1) Temperature and relative humidity range are shown in the figure below.
90 % RH Max. ( 40 °CtTa )
Maximum wet-bulb temperature at 39 °C or less. (Ta > 40 °C) No condensation.
(2) 11ms, sine wave, one time for ±X, ±Y, ±Z axis
(3) 10-300 Hz, Sweep rate 10min, 30min for X,Y,Z axis
(4) At vibration and shock test, the fixture which holds the module to be tested
has to be hard and rigid enough so that the module would not be twisted or
bent by the fixture.
Relative Humidity ( %RH)
100
90
80
60
Operating
Range
40
20
( 25,5)
(-25,5)
-40 -20 0 20 40 60 80
Storage Range
5
0
Temperature (
O
C)
( 40, 90 )
( 50, 50.4 )
( 60,27.7)
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1.2 ELECTRICAL ABSOLUTE RATINGS
(1) TFT LCD Module (Vss = GND = 0 V)
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Item
Power Supply Voltage V
Symbol Min. Max. Unit Note
DD
Vss-0.5 6.5 V (1)
Note (1) Within Ta ( 25 ± 2 °C)
(2) BACK-LIGHT UNIT
Item
Lamp Current I
Lamp Frequency f
Symbol Min. Max. Unit. Note
L
L
(3.0) (7.0) mArms (1),(2)
(40) (80) kHz (1)
Ta = 25 ± 2°C)
(
Note (1) Permanent damage to the device may occur if maximum values are exceeded.
Functional operation should be restricted to the conditions described
under Normal Operating Conditions.
(2) Specified values are for a single lamp.
(Refer to the Note (1) in the page 12 for further information).
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2. Optical Characteristics
The following items are measured under stable conditions. The optical characteristics should be
measured in a dark room or equivalent state with the methods shown in Note (1).
Measuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650
Eldim EZ-Contrast
(Inverter Freq. : 50kHz) * Ta = 25 ± 2°C, VDD=5V, fv= 60Hz, f
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio
C/R
- (1000) -
(Center of screen)
Response Time
TR+T
F
- (16) - msec
(on/off)
Luminance of White
(Center of screen)
Red
Y
Rx
L
Normal
=0
I
=0
T
- (280) - cd/m2
(0.640)
Ry (0.330)
Viewing
Gx (0.300)
Color
Chromaticity
(CIE 1931)
Green
Gy (0.600)
Bx (0.150)
Blue
Angle
-
By (0.060)
=54MHz, IL=6.5mA
DCLK
-
rms
(3)
BM-5A
(5), (6)
BM-7
(7)
BM-5A
(8)
PR650
White
Hor.
Viewing
Angle
Ver.
Brightness Uniformity
(9 Points)
Wx (0.313)
Wy (0.329)
L
T
R
T
CRt10
H
I
L
I
- (89) -
- (89) Degrees
- (89) -
- (89) -
Buni - - (25) %
(9)
EZ-
contrast
(4)
BM-5A
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Note (1) Test Equipment Setup
The measurement should be executed in a stable, windless and dark room between
30min and 40min after lighting the back-light at the given temperature for stabilization
of the back-light. This should be measured in the center of screen.
Single lamp current : 6.5mA (Refer to the note(1) in the page 12 for more information.)
Environment condition : Ta = 25 ± 2 ° C
Photodetector
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Photodetector
BM-5A 2
BM-7 2
PR650 1
TFT - LCD Module
Field
°
°
°
Field
The center of the screen
Optical Measuring Equipment Setup
BM-5A : 40
BM-7 : 50
PR650 : 50
LCD Panel
㎝
㎝
㎝
Note (2) Definition of test point
128 640 1152
Active AREA
89
6
3
5
7
4
12
102
512
922
: test point
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Note (3) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center pointྜྷof the panel
G
CR
max
G
min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
Note (4) Definition of 9 points brightness uniformity
Buni
BB
( max min)
100
B
max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (5) Definition of on/off Response time : Sum of Tr + Tf at Black and White
Display data
Optical
Response
100%
90%
10%
0%
Black(TFT OFF)
TR
White(TFT ON)
Black(TFT OFF)
TF
Time
Note (6) Definition of Luminance of White : Luminance of white at center pointྜྷ.
Note (7) Definition of Color Chromaticity (CIE 1931)
Color coordinate of Red, Green, Blue & White at center point
ྜྷ
.
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Note (8) Definition of Viewing Angle : Viewing angle range (CR10 )
Normal Line
I = 0
o
,
T = 0
o
T L
T R
I L
=90
L
o
x
T
I H
12 O’clock
y
direction
= 90
H
o
I
6 O’clock
direction
= 90
L
o
I
x’y’
=90
R
o
T
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3. Electrical Characteristics
3.1 TFT LCD MODULE
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Ta = 25
C
°
Item
Voltage of Power Supply
Symbol Min. Typ. Max. Unit Note
V
DD
4.5 5.0 5.5 V (1)
Interface type LVDS DS90C383/385/387 DS90C386 Pair
Current of
Power
Supply
Vsync Frequency
Hsync Frequency
Main Frequency
(a) Black
I
DD
- (1,100) - mA
(c) Dot - (1,600) (1,850) mA
(49) 60 (76) Hz
(51) 64 (81) kHz
(40.9) 54 (68.4) MHz
- - (4.0) A (4)
Rush Current
f
DCLK
I
RUSH
f
V
f
H
(2),(3)(b) White - (1,450) - mA
Note (1) The connector for display data & timing signal should be connected.(Vss=0V)
(2) f
=75Hz, f
V
DCLK
=67.5MHz, VDD= 5.0V, DC Current.
(3) Power dissipation check pattern(LCD Module only)
a) Black Pattern b) White Pattern
c) Dot Pattern
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(4) Measurement Conditions
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CONTROL SIGNAL
(HIGH to LOW)
12V
Control Signal : High(+5V)
5V
C3
1uF
R1
47K
R2
1K
R3
47K
M1
2SK1059
M2
2SK1399
C2
10000pF
Low(Ground)
FUSE
VDD ( LCD INPUT)
C1
1uF
All Signal lines to panel, except for power 5V : Ground
The rising time of supplied voltage is controlled to 470us by R3 and C2 value.
GND
0.9 VDD
5V
0.1 VDD
Rising Time
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3.2 BACK-LIGHT UNIT
The back-light system is an edge - lighting type with 2 dual CCFTs (Cold Cathode
Fluorescent Tube). The characteristics of two dual lamps are shown in the following tables.
Ta=25 ± 2° C
Item
Lamp Current I
Lamp Voltage V
Lamp Frequency f
Startup Voltage Vs - -
Symbol Min. Typ. Max. Unit Note
L
L
L
(3.0) (6.5) (7.0) mArms (1)
- (630) - Vrms
(40) - (60) kHz (2)
0
: (1,580)
Vrms (3)
25: (1,210)
Note) The waveform of the inverter output voltage must be area symmetric and the design
of the inverter must have specifications for the modularized lamp.
The performance of the back-light, for example life time or brightness, is much influenced by the
characteristics of the DC-AC inverter for the lamp. So all the parameters of an inverter should be
carefully designed so as not to produce too much leakage current from high-voltage output of the
inverter. When you design or order the inverter, please make sure that a poor lighting caused by the
mismatch of the back-light and the inverter(miss lighting, flicker, etc.) never occur. When you confirm
it, the module should be operated in the same condition as it is installed in your instrument.
Note (1) Lamp current is measured with current meter for high frequency as shown below.
Refer to the block diagram of the back-light unit in the next page for more information.
Specified values are for a single lamp.
Hot (Pink)
Cold (White)
Hot (Blue)
Cold (Black)
LCD Module
Hot (Pink)
Cold (White)
Hot (Blue)
Cold (Black)
A
Inverter
(SK1700A)
(2) Lamp frequency may produce interference with horizontal synchronous frequency which may
cause line flow on the display. Therefore lamp frequency should be detached from the
horizontal synchronous frequency and its harmonics as far as possible in order to avoid
interference.
(3) If an inverter has shutdown function it should keep its output for more than 1 second even if
the lamp connector open. Otherwise the lamps may not to be turned on.
(4) Because the inverter uses high voltage, please disconnect it from the power before
assembling or disassembling.
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4. Block Diagram
4.1 TFT LCD MODULE
LVDS
LVDS
signals
signals
LVDS
LVDS
DS90C
DS90C
386
386
DCPower
DCPower
supply
supply
INPUT CONNECTOR
INPUT CONNECTOR
Odd
Odd
Even
Even
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Memory
Memory
Timing
Timing
Controller
Controller
LCD
LCD
Drive
Drive
Analog
Analog
Circuit
Circuit
Gate
Gate
Driver
Driver
(ROW)
(ROW)
Data Driver
Data Driver
(Column)
(Column)
TFT -LCD
TFT -LCD
4.2 BACK-LIGHT UNIT
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
Connector :
YEONHO 35001HS-02L or equivalent
HOT(PINK)
1
COLD(WHITE)
2
3
HOT(BLUE)
4
COLD(BLACK)
HOT(PINK)
1
COLD(WHITE)
2
3
HOT(BLUE)
4
COLD(BLACK)
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5. Input Terminal Pin Assignment
5.1. Input Signal & Power ( Connector : Uju IN-30-OB100 or equivalent )
PIN NO SYMBOL FUNCTION
1 RXO0- Negative Transmission Data of Pixel 0 (ODD data)
2 RXO0+ Positive Transmission Data of Pixel 0 (ODD data)
3 RXO1- Negative Transmission Data of Pixel 1 (ODD data)
4 RXO1+ Positive Transmission Data of Pixel 1 (ODD data)
5 RXO2- Negative Transmission Data of Pixel 2 (ODD data)
6 RXO2+ Positive Transmission Data of Pixel 2 (ODD data)
7 GND Power Ground
8 RXOC- Negative Sampling Clock (ODD data)
9 RXOC+ Positive Sampling Clock (ODD data)
10 RXO3- Negative Transmission Data of Pixel 3 (ODD data)
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11 RXO3+ Positive Transmission Data of Pixel 3 (ODD data)
12 RXE0- Negative Transmission Data of Pixel 0 (EVEN data)
13 RXE0+ Positive Transmission Data of Pixel 0 (EVEN data)
14 GND Power Ground
15 RXE1- Negative Transmission Data of Pixel 1 (EVEN data)
16 RXE1+ Positive Transmission Data of Pixel 1 (EVEN data)
17 GND Power Ground
18 RXE2- Negative Transmission Data of Pixel 2 (EVEN data)
19 RXE2+ Positive Transmission Data of Pixel 2 (EVEN data)
20 RXEC- Negative Sampling Clock (EVEN data)
21 RXEC+ Positive Sampling Clock (EVEN data)
22 RXE3- Negative Transmission Data of Pixel 3 (EVEN data)
23 RXE3+ Positive Transmission Data of Pixel 3 (EVEN data)
24 GND Power Ground
25 *CE
26 *CTL
27 NC No Connection
For LCD internal use only. Do not connect
For LCD internal use only. Do not connect
28
30
V
DD
Power Supply : +5V29
Note ) Refer to page 25 for the 1st pin of interface connector marked with.
* If system is already use those pins(No.25,26) it should be keep the GND level.
The applied voltage of pins(No.25,26) should not exceed -200mV at least.
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5.2 LVDS Interface (1)
5.2.1 Odd pixel data (1st pixel data)
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1st LVDS Transmitter (
Device Input Pin Device Input Signal
No Symbol Symbol Function Terminal Symbol
51 TXIN0 RO0 Red Odd Pixel Data (LSB)
52 TXIN1 RO1 Red Odd Pixel Data
54 TXIN2 RO2 Red Odd Pixel Data
55 TXIN3 RO3 Red Odd Pixel Data
56 TXIN4 RO4 Red Odd Pixel Data
2 TXIN5 RO7 Red Odd Pixel Data (MSB)
3 TXIN6 RO5 Red Odd Pixel Data
4 TXIN7 GO0 Green Odd Pixel Data (LSB)
6 TXIN8 GO1 Green Odd Pixel Data
7 TXIN9 GO2 Green Odd Pixel Data
DS90C383, DS90C385
) Signal Interface
Output
Signal
TXOUT0-
TXOUT0+
TXOUT3-
TXOUT3+
TXOUT0-
TXOUT0+
TXOUT1-
TXOUT1+
Interface ( CN101 )
No. 1
No. 2
No. 10
No. 11
No. 1
No. 2
No. 3
No. 4
To LTM170E8
RXO0-
RXO0+
RXO3-
RXO3+
RXO0-
RXO0+
RXO1-
RXO1+
8 TXIN10 GO6 Green Odd Pixel Data
10 TXIN11 GO7 Green Odd Pixel Data (MSB)
11 TXIN12 GO3 Green Odd Pixel Data
12 TXIN13 GO4 Green Odd Pixel Data
14 TXIN14 GO5 Green Odd Pixel Data
15 TXIN15 BO0 BlueOddPixelData(LSB)
16 TXIN16 BO6 Blue Odd Pixel Data
18 TXIN17 BO7 Blue Odd Pixel Data (MSB)
19 TXIN18 BO1 Blue Odd Pixel Data
20 TXIN19 BO2 Blue Odd Pixel Data
22 TXIN20 BO3 Blue Odd Pixel Data
23 TXIN21 BO4 Blue Odd Pixel Data
24 TXIN22 BO5 Blue Odd Pixel Data
50 TXIN27 RO6 Red Odd Pixel Data
TXOUT3-
TXOUT3+
TXOUT1-
TXOUT1+
TXOUT3-
TXOUT3+
TXOUT1-
TXOUT1+
TXOUT2-
TXOUT2+
TXOUT3-
TXOUT3+
No. 10
No. 11
No. 3
No. 4
No. 10
No. 11
No. 3
No. 4
No. 5
No. 6
No. 10
No. 11
RXO3-
RXO3+
RXO1-
RXO1+
RXO3-
RXO3+
RXO1-
RXO1+
RXO2-
RXO2+
RXO3-
RXO3+
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5.2.2 Even pixel data (2nd pixel data)
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2nd LVDS Transmitter (
Device Input Pin Device Input Signal
No Symbol Symbol Function Terminal Symbol
51 TXIN0 RE0 RedEvenPixelData(LSB)
52 TXIN1 RE1 RedEvenPixelData
54 TXIN2 RE2 RedEvenPixelData
55 TXIN3 RE3 RedEvenPixelData
56 TXIN4 RE4 RedEvenPixelData
2 TXIN5 RE7 RedEvenPixelData(MSB)
3 TXIN6 RE5 RedEvenPixelData
4 TXIN7 GE0 Green Even Pixel Data (LSB)
6 TXIN8 GE1 Green Even Pixel Data
7 TXIN9 GE2 Green Even Pixel Data
DS90C383, DS90C385
) Signal Interface
Output
Signal
TXOUT0-
TXOUT0+
TXOUT3-
TXOUT3+
TXOUT0-
TXOUT0+
TXOUT1-
TXOUT1+
Interface ( CN101 )
No. 12
No. 13
No. 22
No. 23
No. 12
No. 13
No. 15
No. 16
To LTM170E8
RXE0-
RXE0+
RXE3-
RXE3+
RXE0-
RXE0+
RXE1-
RXE1+
8 TXIN10 GE6 Green Even Pixel Data
10 TXIN11 GE7 Green Even Pixel Data (MSB)
11 TXIN12 GE3 Green Even Pixel Data
12 TXIN13 GE4 Green Even Pixel Data
14 TXIN14 GE5 Green Even Pixel Data
15 TXIN15 BE0 Blue Even Pixel Data (LSB)
16 TXIN16 BE6 Blue Even Pixel Data
18 TXIN17 BE7 Blue Even Pixel Data (MSB)
19 TXIN18 BE1 Blue Even Pixel Data
20 TXIN19 BE2 Blue Even Pixel Data
22 TXIN20 BE3 Blue Even Pixel Data
23 TXIN21 BE4 Blue Even Pixel Data
24 TXIN22 BE5 Blue Even Pixel Data
50 TXIN27 RE6 RedEvenPixelData
TXOUT3-
TXOUT3+
TXOUT1-
TXOUT1+
TXOUT3-
TXOUT3+
TXOUT1-
TXOUT1+
TXOUT2-
TXOUT2+
TXOUT3-
TXOUT3+
No. 22
No. 23
No. 15
No. 16
No. 22
No. 23
No. 15
No. 16
No. 18
No. 19
No. 22
No. 23
RXE3-
RXE3+
RXE1-
RXE1+
RXE3-
RXE3+
RXE1-
RXE1+
RXE2-
RXE2+
RXE3-
RXE3+
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5.3 LVDS Interface (2)
5.3.1 Odd pixel data (1st pixel data)
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LVDS Transmitter (
Device Input Pin Device Input Signal
No Symbol Symbol Function Terminal Symbol
10 R10 RO0 Red Odd Pixel Data (LSB)
9 R11 RO1 Red Odd Pixel Data
8 R12 RO2 Red Odd Pixel Data
7 R13 RO3 Red Odd Pixel Data
6 R14 RO4 Red Odd Pixel Data
3 R17 RO7 Red Odd Pixel Data (MSB)
5 R15 RO5 Red Odd Pixel Data
2 G10 GO0 Green Odd Pixel Data (LSB)
1 G11 GO1 Green Odd Pixel Data
100 G12 GO2 Green Odd Pixel Data
DS90C387
) Signal Interface
Output
Signal
A0M
A0P
A3M
A3P
A0M
A0P
A1M
A1P
To LTM170E8
Interface ( CN101 )
No. 1
No. 2
No. 10
No. 11
No. 1
No. 2
No. 3
No. 4
RXO0-
RXO0+
RXO3-
RXO3+
RXO0-
RXO0+
RXO1-
RXO1+
94 G16 GO6 Green Odd Pixel Data
93 G17 GO7 Green Odd Pixel Data (MSB)
99 G13 GO3 Green Odd Pixel Data
96 G14 GO4 Green Odd Pixel Data
95 G15 GO5 Green Odd Pixel Data
92 B10 BO0 BlueOddPixelData(LSB)
86 B16 BO6 Blue Odd Pixel Data
85 B17 BO7 Blue Odd Pixel Data (MSB)
91 B11 BO1 Blue Odd Pixel Data
90 B12 BO2 Blue Odd Pixel Data
89 B13 BO3 Blue Odd Pixel Data
88 B14 BO4 Blue Odd Pixel Data
87 B15 BO5 Blue Odd Pixel Data
4 R16 RO6 Red Odd Pixel Data
A3M
A3P
A1M
A1P
A3M
A3P
A1M
A1P
A2M
A2P
A3M
A3P
No. 10
No. 11
No. 3
No. 4
No. 10
No. 11
No. 3
No. 4
No. 5
No. 6
No. 10
No. 11
RXO3-
RXO3+
RXO1-
RXO1+
RXO3-
RXO3+
RXO1-
RXO1+
RXO2-
RXO2+
RXO3-
RXO3+
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5.3.2 Even pixel data (2nd pixel data)
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LVDS Transmitter (
Device Input Pin Device Input Signal
No Symbol Symbol Function Terminal Symbol
84 R20 RE0 RedEvenPixelData(LSB)
81 R21 RE1 RedEvenPixelData
80 R22 RE2 RedEvenPixelData
79 R23 RE3 RedEvenPixelData
78 R24 RE4 RedEvenPixelData
75 R27 RE7 RedEvenPixelData(MSB)
77 R25 RE5 RedEvenPixelData
74 G20 GE0 Green Even Pixel Data (LSB)
73 G21 GE1 Green Even Pixel Data
72 G22 GE2 Green Even Pixel Data
DS90C387
) Signal Interface
Output
Signal
A4M
A4P
A7M
A7P
A4M
A4P
A5M
A5P
To LTM170E8
Interface ( CN101 )
No. 12
No. 13
No. 22
No. 23
No. 12
No. 13
No. 15
No. 16
RXE0-
RXE0+
RXE3-
RXE3+
RXE0-
RXE0+
RXE1-
RXE1+
66 G26 GE6 Green Even Pixel Data
65 G27 GE7 Green Even Pixel Data (MSB)
71 G23 GE3 Green Even Pixel Data
70 G24 GE4 Green Even Pixel Data
69 G25 GE5 Green Even Pixel Data
64 B20 BE0 Blue Even Pixel Data (LSB)
58 B26 BE6 Blue Even Pixel Data
57 B27 BE7 Blue Even Pixel Data (MSB)
63 B21 BE1 Blue Even Pixel Data
62 B22 BE2 Blue Even Pixel Data
61 B23 BE3 Blue Even Pixel Data
60 B24 BE4 Blue Even Pixel Data
59 B25 BE5 Blue Even Pixel Data
76 R26 RE6 RedEvenPixelData
A7M
A7P
A5M
A5P
A7M
A7P
A5M
A5P
A6M
A6P
A7M
A7P
No. 22
No. 23
No. 15
No. 16
No. 22
No. 23
No. 15
No. 16
No. 18
No. 19
No. 22
No. 23
RXE3-
RXE3+
RXE1-
RXE1+
RXE3-
RXE3+
RXE1-
RXE1+
RXE2-
RXE2+
RXE3-
RXE3+
Note : Must be connected 24th BAL pin with low and 23th DUAL pin with high
in DS90C387 LVDS Transmitter
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5.4 BACK-LIGHT UNIT
Pin No. Input Color Function
1 Hot1 Pink High Voltage
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Upper
Lower
2 Cold1 White Ground
3 Hot2 Blue High Voltage
4 Cold2 Black Ground
1 Hot1 Pink High Voltage
2 Cold1 White Ground
3 Hot2 Blue High Voltage
4 Cold2 Black Ground
Connector
YEONHO 35001HS-02L or equivalent
Part No.
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5.5 Input Signals, Basic Display Colors and Gray Scale of Each Colors
COLOR
BASIC
COLOR
GRAY
SCALE
OF
RED
GRAY
SCALE
OF
GREEN
GRAY
SCALE
OF
BLUE
DISPLAY
(8bit)
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
BLUE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 -
GREEN 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 -
CYAN 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 -
RED 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
MAGENTA 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 -
YELLOW 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 -
WHITE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 -
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R0
DARK
↑
↓
LIGHT
RED 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R255
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G0
DARK
↑
↓
LIGHT
GREEN 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 G255
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 B0
DARK
↑
↓
LIGHT
BLUE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B255
R0 R1 R2 R3 R4 R5 R6 R7 G0 G1 G2 G3 G4 G5 G6 G7 B0 B1 B2 B3 B4 B5 B6 B7
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R1
0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R2
: : : : : : : : : : : : : : : : : :
: : : : : : : : : : : : : : : : : :
1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R253
0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R254
0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G1
0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G2
: : : : : : : : : : : : : : : : : :
: : : : : : : : : : : : : : : : : :
0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 G253
0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 G254
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 B1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 B2
: : : : : : : : : : : : : : : : : :
: : : : : : : : : : : : : : : : : :
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 B253
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 B254
RED GREEN BLUE
DATA SIGNAL
GRAY
SCALE
LEVEL
R3~
R252
G3~
G252
B3~
B252
Note) Definition of Gray
Rn : Red Gray, Gn : Green Gray, Bn : Blue Gray (n = Gray level)
Input Signal : 0 = Low level voltage, 1 = High level voltage
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6. Interface Timing
6.1 Timing Parameters ( DE only mode )
SIGNAL ITEM SYMBOL MIN. TYP. MAX. UNIT NOTE
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Frequency 1/T
Clock
Data
Data Enable Setup Time T
Frame Frequency
Vertical Active
Display Term
One Line
Scanning Time
High Time T
Low Time T
Setup Time T
Hold Time T
Cycle Tv
Frequency
Display Period T
Vertical Blank
Period
Cycle T
C
CH
CL
DS
DH
ES
(40.9) 54 (68.4) MHz
4 - - nsec
4 - - nsec
4 - - nsec
4 - - nsec
4 - - nsec
(20.4) 16.1 (13.1) msec
(1032) 1066 (1450)
lines
1/Tv (49) 60 (76) Hz
VD
T
VB
H
1024 1024 1024 lines
(8) - - lines
(672) 844 (1023) clocks
(1),(2)
(3)
Horizontal Active
Display Term
Display Period T
HD
640 640 640 clocks
Note (1) Test Point : TTL control signal and CLK at LVDS Tx input terminal in system
(2) Internal Vcc = 3.3V
(3) At low Vsync frequency, under 60Hz, flicker level can increase at specific pattern.
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6.2 Timing diagrams of interface signal ( DE only mode )
T
V
T
VD
DE
T
HD
DE
T
VB
T
H
D
CLK
DATA
SIGNALS
D
CLK
DISPLAY
DATA
T
C
T
C
T
CH
T
DS
T
CL
0.5 V
CC
T
DH
0.5 V
CC
T
ES
DE
0.5 V
CC
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༕˺
˺
˺
˺
˺
˺
˺
˺
˺
༕˺
˺
˺
˺
˺
˺
˺
˺
˺
6.3 Power ON/OFF Sequence
To prevent a latch-up or DC operation of the LCD module, the power on/off sequence
should be as the diagram below.
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Power Supply
Power Supply
DD
DD
V
V
1
300
300
0
0
0
0
Back-light(Recommended)
Back-light(Recommended)
1
T
T
2
2
T
T
3
3
T
T
1sec
1sec
Signals
Signals
500
500
msec
msec
100 msec
100 msec
10msec
10msec
0V
0V
50 msec
50 msec
50 msec
50 msec
4
4
T
T
0 V
0 V
5
5
T
T
6
6
T
T
0.1 V
0.1 V
0.9 V
0.9 V
DD
DD
Power On
Power On
DD
DD
DD
DD
0.9 V
0.9 V
DD
DD
0.1 V
0.1 V
1
1
T
T
2
2
T
T
VALID
VALID
50% 50%
50% 50%
3
3
T
T
Power Off
Power Off
4
4
T
T
5
5
T
T
6
6
T
T
Power ON/OFF Sequence
Note (1) The supply voltage of the external system for the module input should be the
same as the definition of V
DD
.
(2) Apply the lamp voltage within the LCD operation range. When the back-light turns
on before the LCD operation or the LCD turns off before the back-light turns off,
the display may momentarily become abnormal screen.
(3) In case of V
= off level, please keep the level of input signals low or
DD
keep a high impedance.
(4) T4 should be measured after the module has been fully discharged between
power off and on period.
(5) Interface signal should not be kept at high impedance when the power is on.
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7. Outline Dimension
[ Refer to the next page ]
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8. General Precautions
8.1 Handling
(a) When the module is assembled, it should be attached to the system firmly
using all mounting holes. Be careful not to twist or bend the modules.
(b) Because the inverter use high voltage, it should be disconnected from power
before it is assembled or disassembled.
(c) Refrain from strong mechanical shock and /or any force to the module.
In addition to damage, this may cause improper operation or damage to the module
and CCFT back-light.
(d) Note that polarizers are very fragile and could be easily damaged.
Do not press or scratch the surface using the harder than a HB pencil lead.
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(e) Wipe off water droplets or oil immediately.
If you leave the droplets for a long time, staining and discoloration may occur.
(f) If the surface of the polarizer is dirty, clean it using some absorbent cotton or
soft cloth.
(g) The desirable cleaners are water, IPA(Isopropyl Alcohol) or Hexane.
Do not use Ketone type materials(ex. Acetone), Ethyl alcohol, Toluene, Ethyl
acid or Methyl chloride. It might permanent damage to the polarizer due to
chemical reaction.
(h) If the liquid crystal material leaks from the panel, it should be kept away
from the eyes or mouth. In case of contact with hands, legs or clothes, it must
be washed away thoroughly with soap.
(i) Protect the module from static which may cause damage to the CMOS Gate Array IC.
(j) Use finger-stalls with soft gloves in order to keep display clean during the
incoming inspection and assembly process.
(k) Do not disassemble the module.
(l) Do not pull or fold the lamp wire.
(m) Do not adjust the variable resistor located on the module.
(n) Protection film for polarizer on the module should be slowly peeled off just before use
so that the electrostatic charge can be minimized.
(o) Pins of I/F connector should not be touched directly with bare hands.
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8.2 Storage
(a) Do not leave the module in high temperature, high humidity for a long time.
It is highly recommended to store the module with temperature from 0 to 35
and relative humidity of less than 70%.
(b) Do not store the TFT-LCD module in direct sunlight.
(c) The module should be stored in a dark place.
It is prohibited to apply sunlight or fluorescent light in storage.
8.3 Operation
(a) Do not connect or disconnect the module in the "Power On" condition.
(b) Power supply should always be turned on/off by 6.3 "Power on/off sequence"
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(c) Module has high frequency circuits. Sufficient suppression to the electromagnetic
interference should be done by system manufacturers. Grounding and shielding methods
may be important to minimize the interference.
(d) The cable between the back-light connector and its inverter power supply should
be connected directly with a minimized length. A longer cable between
the back-light and the inverter may cause lower luminance of lamp(CCFT) and
may require higher startup voltage(Vs).
8.4 Others
(a) Ultra-violet ray filter is necessary for outdoor operation.
(b) Avoid condensation of water which may result in improper operation or disconnection
of electrode.
(c) Do not exceed the absolute maximum rating value. ( supply voltage variation,
input voltage variation, variation in part contents and environmental temperature,
andsoon)
Otherwise the module may be damaged.
(d) If the module keeps displaying the same pattern for a long period of time,
the image may be "sticked" to the screen.
(e) This module has its circuitry PCB's on the rear side and should be handled
carefully in order not to be stressed.
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