SAMSUNG LTM170EX-L21 Specification
Global LCD Panel Exchange Center
To : Customer
Date : 2005-01-31
SAMSUNG TFT-LCD
MODEL NO.:LTM170EX-L21
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Approval
Approved by :
Any Modification of Spec is not allowed without SEC's permission.
Senior Manager :
Y.D. Jo
PREPARED BY :
LCD Business
Technical Customer Service Team
Samsung Electronics Co . , LTD.
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Contents
Revision History -------------------------- (3)
General Description -------------------------- (4)
1. Absolute Maximum Ratings -------------------------- (5)
1.1 Absolute ratings of environment
1.2 Electrical Absolute Ratings
2. Optical Characteristics -------------------------- (7)
3. Electrical Characteristics -------------------------- (11)
3.1 TFT LCD Module
3.2 Back-light Unit
4. Block Diagram -------------------------- (15)
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4.1 TFT LCD Module
4.2 Back-light Unit
5. Input Terminal Pin Assignment -------------------------- (16)
5.1 Input Signal & Power
5.2 LVDS Interface
5.3 Back-light Unit
5.4 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
6.4 V
Power Dip Condition
DD
6.5 LVDS Input Characteristics
7. Outline Dimension -------------------------- (27)
8. Reliability Test -------------------------- (29)
9. Packing -------------------------- (30)
10. Marking & Others -------------------------- (31)
11. Inspection Criteria -------------------------- (33)
12. General Precaution -------------------------- (34)
12.1 Handling
12.2 Storage
12.3 Operation
12.4 Others
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* Revision History
Date Rev. No Page Summary
Jan. 31,
2005
000 Approval specification of LTM170EX-L21 model was issued first.
Approval
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General Description
* Description
LTM170EX-L21 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 16.2 million colors.
* Features
- High contrast ratio, high aperture structure
- TN (Twisted Nematic) mode
- Wide viewing angle
- High speed response
- SXGA (1280 x 1024 pixels) resolution
- Low power consumption
Approval
- 2 dual CCFTs (Cold Cathode Fluorescent Tube)
- DE (Data Enable) mode
- LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
- Compact Size Design
- Pb-free configuration
* Applications
Workstation & desktop monitors
Display terminals for AV application products
Monitors for industrial machine
* If the module is used to other applications besides the above, please contact SEC
in advance.
* General information
Items
Display area 337.92(H) x 270.336(V) mm
Driver element a-Si TFT active matrix
Display colors 16.2M 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 White
Surface treatment Haze 25% , Hard-coating (3H)
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Specification Unit Note
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* Mechanical information
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Item
Horizontal(H) 354.4 354.9 355.4 mm
Module
size
Vertical(V) 289.8 290.3 290.8 mm
Depth(D) - - 13.3 mm
Weight - - 1,700 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
Note (1) Within Ta ( 25 ± 2 °C)
(2) BACK-LIGHT UNIT
Item
Lamp Current I
Lamp Frequency f
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 13 for further information.)
Symbol Min. Max. Unit Note
DD
Symbol Min. Max. Unit. Note
L
L
Vss-0.5 6.5 V (1)
Ta = 25 ± 2°C)
(
3.0 8.0 mArms (1),(2)
40 80 kHz (1)
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2. Optical Characteristics
Approval
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
=54MHz, IL=7.5mA
DCLK
rms
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio
(Center of screen)
Response
Time
Rising T
Falling T
Luminance of White
(Center of screen)
C/R
R
F
Y
L
500 700 -
- 2 4
msec
- 6 10
250 300 - cd/m2
(3)
BM-5A
(5)
BM-7
(6)
BM-5A
Rx 0.620 0.650 0.680
Red
Ry 0.300 0.330 0.360
Color
Chromaticity
(CIE 1931)
Color
Chromaticity
(CIE 1976)
Viewing
Angle
Green
Blue
White
Red
Green
Blue
White
Hor.
Ver.
Gx 0.270 0.300 0.330
Gy 0.570 0.600 0.630
Bx 0.120 0.150 0.180
Normal
=0
I
=0
T
By 0.050 0.080 0.110
Wx 0.283 0.313 0.343
Viewing
Angle
Wy 0.299 0.329 0.359
Ru' - 0.459 -
Rv' - 0.525 -
Gu' - 0.125 -
Gv' - 0.563 -
Bu' - 0.152 -
Bv' - 0.196 -
Wu' - 0.198 -
Wv' - 0.468 -
L
T
R
T
65 75 -
65 75 -
CRt10
H
I
L
I
65 75 -
50 60 -
Degrees
(7)
PR650
(8)
BM-5A
Brightness Uniformity
(9 Points)
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Buni - - 25 %
(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 : 7.5mA (Refer to the note(1) in the page 13 for more information.)
Environment condition : Ta = 25 ± 2 °C
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Photodetector
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
89
6
3
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7
4
12
102
512
922
Active AREA
: 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
Approval
BB
Buni
( max min)
100
B
max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (5) Definition of Response time : Sum of Tr, Tf
Display data
Optical Instruments
WHITE(data off)
T
R
BLACK(data on)
WHITE(data off)
T
F
Response
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100%
90%
10%
0%
TIME
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Approval
Note (6) Definition of Luminance of White : Luminance of white at center point
Note (7) Definition of Color Chromaticity (CIE 1931, CIE1976)
Color coordinate of Red, Green, Blue & White at center point
ྜྷ
Note (8) Definition of Viewing Angle : Viewing angle range (CR10)
ྜྷ
T
=90
L
6 O’clock
direction
= 90
L
o
I
Normal Line
I = 0
o
,
T = 0
o
T L
T R
o
x
I L
I H
y
12 O’clock
direction
= 90
o
I
H
x’y’
=90
R
o
T
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3. Electrical Characteristics
Approval
3.1 TFT LCD MODULE
Ta = 25
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 DS90C386 Pair
Current of
Power
Supply
Vsync Frequency
Hsync Frequency
Main Frequency
(a) Black
I
DD
- 600 - mA
(c) Dot - 700 850 mA
55 60 77 Hz (4)
56.7 64 82.082 kHz
40.0 54 69.28 MHz
- - 3.0 A (5)
Rush Current
f
DCLK
I
RUSH
f
V
f
H
Note (1) The connector for display data & timing signal should be connected.(Vss=0V)
C
°
(2),(3)(b) White - 500 - mA
(2) f
=60Hz, f
V
DCLK
= 54MHz, V
= 5.0V, DC Current.
DD
(3) Power dissipation check pattern(LCD Module only)
a) Black Pattern b) White Pattern
c) Dot Pattern
(4) At low Vsync frequency, under 60Hz, flicker level can increase at specific pattern.
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