Product Information
ISSUE DATE : 98-12-23
MODEL : LT150X1-151
NOTE : This product information is subject to change after 3 months of issuing date.
PREPARED BY :
AMLCD Application Engineering Group
SAMSUNG ELECTRONICS CO., LTD.
Doc. No : PI004
1
SAMSUNG TFT-LCD
CONTENTS
General Description
1. Electrical Absolute Characteristics
1.1 TFT LCD Module
1.2 Back-light Unit
2. Optical Characteristics
3. Electrical Characteristics
3.1 TFT LCD Module
3.2 Back-light Unit
4. Block Diagram
4.1 TFT LCD Module
4.2 Back-light Unit
5. Input Terminal Pin Assignment
5.1 Input signal & Power
5.2 Back-light Unit
5.3 Input Signal,Basic Display Colors and Gray Scale of Each Colors
6. Interface Timing
6.1 Timing Parameters (Sync & DE mode)
6.2 Timing Diagrams of interface Signal (Sync & DE mode)
6.3 Timing Parameters (DE only mode)
6.4 Timing Diagrams of interface signal (DE only mode)
6.5 Power ON/OFF Sequence
- - - - - - - - - - - - - - - - - - - ( 3 )
- - - - - - - - - - - - - - - - - - - ( 4 )
- - - - - - - - - - - - - - - - - - - ( 5 )
- - - - - - - - - - - - - - - - - - - ( 8 )
- - - - - - - - - - - - - - - - - - - ( 11 )
- - - - - - - - - - - - - - - - - - - ( 12 )
- - - - - - - - - - - - - - - - - - - ( 15 )
7. Outline Dimension
8. General Precautions
8.1 Handling
8.2 Storage
8.3 Operation
8.4 Others
Doc. No : PI004
- - - - - - - - - - - - - - - - - - - ( 20 )
- - - - - - - - - - - - - - - - - - - ( 21 )
2
SAMSUNG TFT-LCD
GENERAL DESCRIPTION
DESCRIPTION
LT150X1-151 is a color active matrix TFT (Thin Film Transistor) liquid crystal display (LCD)
that uses amorphous silicon TFT switching devices. This model is composed of a TFT
LCD panel, a driver circuit and a back-light system. The resolution of 15.0- inch contains
1,024 x 768 pixels and can display up to 262,144 colors. 6 o'clock direction is the optimum
viewing angle.
FEATURES
• High contrast ratio, High aperture structure
• Wide viewing angle
• High-speed response
• XGA(1024x768 pixels) resolution
• Low power consumption
• 2 Dual CCFTs (Cold Cathode Fluorescent Tube)
• Sync&DE (Data Enable) Mode and DE only Mode
• TTL Interface with 2 pixels / clock
APPLICATIONS
• Desktop monitors
• Display terminals for AV application products
• Monitors for Industrial machine
GENERAL SPECIFICATIONS
ITEM SPECIFICATION
Display area 304.128(H) x228.096(V) (15 inch diagonal )
Driver element a-Si TFT active matrix
Display colors 262,144
Number of pixel 1024 x 768 pixel
Pixel arrangement RGB vertical stripe
Pixel pitch 0.297(H) x 0.297(W) mm
Normally whiteDisplay Mode
Haze 13 , Hard - Coating (3H)Surface treatment
UNIT
mm
NOTE
Doc. No : PI004
3
SAMSUNG TFT-LCD
Mechanical Information
TYP. MAX.
368
275
- -
- -
Module
size
ITEM
Horizontal (H)
Vertical (V)
Depth (D)
Weight
MIN.
-
-
1. ELECTRICAL ABSOLUTE RATINGS
1.1 TFT LCD MODULE
ITEM SYMBOL MIN. MAX. UNIT NOTE
Power Supply Voltage VDD Vss-0.3 6.0 V
NOTE (1) Within Ta (25 ± 2 °C)
-
-
20
1550
NOTE
mm
mm
mm
g
( Vss =GND= 0 V)
( 1 )
1.2 BACK-LIGHT UNIT
ITEM
Lamp current IL
Lamp frequency
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 dual lamp (Refer to the Note(1) in the page 10 for further information.).
SYMBOL
fL
MIN. UNIT. NOTE
4.0
30
MAX.
12.0
80
mArms
KHz
Ta = 25 ± 2 °C
(1),(2)
(1)
Doc. No : PI004
4
SAMSUNG TFT-LCD
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 (4).
Measuring equipment : TOPCON BM-5A
* Ta = 25 ± 2 °C , VDD = 5V, fv= 60Hz, fDCLK=32.5MHz, IL = 11.2 mArms
ITEM SYMBOL CONDITION MIN. TYP. MAX. UNIT
Contrast Ratio
(Center of screen)
Response
Time at Ta
Luminance of White
(Center of screen)
Color
Chromaticity
( CIE )
Rising
Falling
Red
Green
Blue
White
CR
TR
TF
YL
RX
RY
GX
GY
BX
BY
WX
WY
φ = 0,
θ = 0
Normal
Viewing
Angle
NOTE
-
-
-
-
-
-
-
-
-
-
-
-
200
20
30
200
0.619
0.343
0.298
0.595
0.146
0.104
0.294
0.325
-
-
-
msec
-
-
-
-
-
-
-
-
-
cd/m
2
(1), (2), (4)
(1), (3)
(1), (4)
(1), (4)
Viewing
Hor.
Angle
Ver.
Doc. No : PI004
θ L
θ R
φ H
φ L
>
_
CR 5
60
60
55
55
5
-
-
-
-
-
Degrees
-
-
SAMSUNG TFT-LCD
Note 1) Definition of Viewing Angle : Viewing angle range (5
Normal Line
o
φ = 0
,
θ = 0
θ L
φ H
θ L =90
o
x
φ L
≤
CR )
o
θ R
y
12 o’clock
direction
φ H = 90o
6 o’clock
direction
φ L= 90o
Note 2) Definition of Contrast Ratio (CR) : Ratio of gray max (Gmax) ,gray min (Gmin)
at the center point of panel.
Luminance with all pixels white (Gmax)
CR =
Luminance with all pixels black (Gmin)
Note 3) Definition of Response time :Note 3) Definition of Response time : Sum of TR ,TF
Display data
Optical
Response
White(TFT OFF) White(TFT OFF)
TR
100%
90%
Black(TFT ON)
x'y'
θR =90
TF
o
Doc. No : PI004
10%
0%
Time
6
SAMSUNG TFT-LCD
Note 4) After stabilizing and leaving the panel alone at a given temperature for 30 min , the measurement
should be executed. Measurement should be executed in a stable, windless, and dark room.
30 min after lighting the back-light. This should be measured in the center of screen.
Dual lamp current : 11.2mA (5.6mA x 2 ,Refer to the note(1) in the page 10 for further information.)
Environment condition : Ta = 25 ± 2 °C
Photo-detector
( TOPCON BM-5A)
TFT-LCD module
Field = 2
o
40 cm
LCD panel
center of the screen
Optical characteristics measurement setup
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SAMSUNG TFT-LCD
3. ELECTRICAL CHARACTERISTICS
3.1 TFT LCD MODULE
ITEM SYMBOL MIN TYP MAX UNIT NOTE
Voltage of Power Supply
Input
Voltage
Current of
Power Supply
Vsync Frequency fV
Hsync Frequency fH
Main Frequency fDCLK
High VIH
Low VIL
White
Mosaic
V.stripe
VDD 4.75 5.0 5.25 V
IDD
2.64
GND
-
-
-
-
-
-
-
- V
360
380
590
60
48.3
32.5
VDD
0.6
-
-
640
-
-
-
Ta= 25 ± 2 °C
V
(1)
mA
mA
mA
Hz
kHz
MHz (3)
(2)(4)*a
(2)(4)*b
(2)(4)*c
Rush Current
Note (1) MCLK , Vsync , Hsync , DE , RA0 ∼ RA5 , GA0 ∼ GA5 , BA0 ∼ BA5 , RB0 ∼ RB5 ,
GB0 ∼ GB5 , BB0 ∼ BB5
(2) fV=60Hz, fDCLK =32.5MHZ, VDD = 5.0V, DC Current.
(3) 2 Pixels/clock
(4) Power dissipation check pattern
Irush
- -
2.5
A
(5)
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SAMSUNG TFT-LCD
(5) Measurement Conditions
CONTROL SIGNAL
(HIGH to LOW)
12V
5V
C3
1uF
R1
47K
R2
1K
R3
( 47K )
M1
2SK1059
C2
10000pF
M2
2SK1399
FUSE
VDD ( LCD INPUT)
C1
1uF
Note : Control Signal : High(+5V) -->Low(Ground)
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.
0.9 VDD
5V
Doc. No : PI004
GND
0.1 VDD
9
Rising Time
SAMSUNG TFT-LCD
3.2 BACK-LIGHT UNIT
The back-light system is an edge-lighting type with 2 dual CCFTs(Cold Cathode Fluorescent Tube).
The characters of two dual lamps are shown in the following tables.
ITEM SYMBOL MIN TYP MAX UNIT NOTE
Ta= 25 ± 2 °C
Lamp Current
Lamp Voltage
Lamp Frequency
Operating Life Time
Startup Voltage
IL
VL
fL
Hr
Vs
4.0
-
11.2
690
11.6
-
- -55
20,000 Hour- -
- -
1100 (25°C)
mA
rms
rms
V
kHz (2)
Vrms
(1)
(3)
(4)
1420 (0°C)
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.
(1) ü Dual lamp current is measured with current meter for high frequency as shown below.
Note
ü Refer to the block diagram of the back-light unit in the next page for more information.
ü Specified values are for a dual lamp.
(2) Lamp frequency may produce interference with horizontal synchronous frequency and this
may cause line flow on the display. Therefore lamp frequency shall be detached from the
horizontal synchronous frequency and its harmonics as far as possible in order to avoid interference.
(3) Life time (Hr) of a lamp is defined as the time in which it continues to operate under the
condition of Ta = 25 ± 2 °C and IL = 10 mArms until the brightness becomes 50% or lower than
it’ s original value.
(4) The voltage above this value should be applied to the lamps for more than 1 second to startup.
Otherwise the lamps may not to be turned on.
Doc. No : PI004
LCD
MODULE
1
2
4
HOT 1 ( Pink )
HOT 2 ( Pink )
COLD ( White )
A
INVERTER
(SIC -141)
10
SAMSUNG TFT-LCD
4. BLOCK DIAGRAM
4.1 TFT LCD MODULE
Timing Signal
Display Data
DC Power
supply
4.2 BACK-LIGHT UNIT
Data Driver
Timing
Converter
Gate
Driver
TFT-LCD
LCD
Drive
Analog
Circuit
1
HOT 1
2
HOT 2
3
4
1
2
3
4
NC
COLD
HOT 1
HOT 2
NC
COLD
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SAMSUNG TFT-LCD
5. INPUT TERMINAL PIN ASSIGNMENT
5.1. TFT LCD MODULE (Interface Signal & Power)
Connector : Hirose DF14A-30P-1.25H
Matching Socket : Hirose DF14-30S-1.25C
Pin NO. Symbol Function Polarity
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GA3
VDD
VDD
GND
MCLK
GND
VSYNC
HSYNC
DE
GND
RA0(ODD)
RA1
RA2
RA3
RA4
RA5
GND
GA0(ODD)
GA1
GA2
Power Supply [+5.0V]
Power Supply [+5.0V]
Ground
Data Clock
Ground
Vertical Sync Signal
Horizontal Sync Signal
Data Enable
Ground
Red Data [LSB] - ODD
Red Data
Red Data
Red Data
Red Data
Red Data [MSB] -ODD
Ground
Green Data [LSB] - ODD
Green Data
Green Data
Green Data
-
-
-
-
Negative
Negative
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Remark
-
-
-
(1)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
21
GA4
22
GA5
23
24
25
26
27
28
29
30
GND
BA1
BA2
BA3
BA4
BA5
GND
Doc. No : PI004
Green Data
Ground
BA0(ODD)
Blue Data
Blue Data
Blue Data
Blue Data
Ground
Green Data [MSB] -ODD
Blue Data [LSB] -ODD
Blue Data [MSB] -ODD
12
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
-
-
-
-
-
-
-
-
-
-
-
SAMSUNG TFT-LCD
Connector : Hirose DF14A-25P-1.25H
Matching Socket : Hirose DF14-25S-1.25C
Pin NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Symbol
GND
RB0(EVEN)
RB1
RB2
NC(GND)
RB3
RB4
RB5
GND
GB0(EVEN)
GB1
GB2
NC(GND)
GB3
GB4
GB5
GND
BB0(EVEN)
BB1
BB2
NC
BB3
BB4
BB5
GND
Function
Ground
Red Data [LSB] -EVEN
Red Data
Red Data
No Connection
Red Data
Red Data
Red Data [MSB] -EVEN
Ground
Green Data [LSB] -EVEN
Green Data
Green Data
No Connection
Green Data
Green Data
Green Data [MSB] -EVEN
Ground
Blue Data [LSB] -EVEN
Blue Data
Blue Data
No Connection
Blue Data
Blue Data
Blue Data [MSB] -EVEN
Ground
Polarity
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
Positive
-
Remark
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Note (1) Display data is sampled at the falling edge of data clock.
5.2 BACK-LIGHT UNIT
PIN No.
1 HOT 1
2
3
4
Connector
Part No.
Doc. No : PI004
INPUT [ ch1 ] , [ ch2 ]
HOT 2
N.C
COLD
Color Function
Pink
Pink
-
White
JST BHR-04VS-1
13
High Voltage
High Voltage
No Connection
Ground
SAMSUNG TFT-LCD
5.3 Input Signal,Basic Display Colors and Gray Scale of Each Colors
Note) ü Definition of Gray :
Rn : Red Gray, Gn : Green Gray, Bn : Blue Gray (n = Gray level)
ü Input Signal : 0 = Low level voltage, 1 = High level voltage
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SAMSUNG TFT-LCD
6. INTERFACE TIMING
6.1 Timing Parameters ( SYNC&DE Mode )
Signal Item Symbol MIN TYP MAX Unit
Frequency 1 / TC - 32.5 - MHz
Clock
Data
Data Enable
Horizontal
Sync
Vertical
Sync
Horizontal
Signal
Vertical
Signal
High Time TCH 4 - - nsec
Low Time TCL 4 - - nsec
Setup Time TDS 4 - - nsec
Hold Time TDH 4 - - nsec
Setup Time TES 4 - - nsec
- 20.68 - usec
Cycle
Pulse Width THP - 68 - clocks
Cycle
Pulse Width TVP 1 - 35 lines
Display Start THS 148 148 148 clocks
Display period THD 512 512 512 clocks
Display Start TVS
Display Period TVD
TV
TH
- 672 - clocks
772 16.7 806 - msec lines
- 35 - lines
768 768 768 lines
Note
(1)
Note (1) ü The duration of DE [DTMG] signal must be longer than 1 clock period at every horizontal sync. Period
ü In case DE is fixed “Low”, Panel operates by Sync only mode.
In this case, DE signal shouldn’ t be kept “High” during operation.
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SAMSUNG TFT-LCD
6.2 Timing diagrams of interface signal (SYNC&DE mode)
TV
VSYNC
TVS
HSYNC
DE
HSYNC
DCLK
DE
DATA
SIGNALS
TVP
TVD
TVS
TH
THP
TC
THS THD
Valid display data ( 512 clocks )
Doc. No : PI004
DCLK
DISPLAY
DATA
DE
2.64V
50%
2.64V
TC
TCH TCL
50%
TDS TDH
TES
16
50%
0.6V
2.64V
0.6V
SAMSUNG TFT-LCD
6.3 Timing Parameters ( DE only mode )
Signal Item Symbol MIN T YP MAX Unit
Frequency 1 / TC - 32.5 - MHz
Clock
Data
Data Enable
Frame Frequency
Vertical Active
Display Term
One Line
Scanning Time
Horizontal Active
Display Term
Note (1) When LT150X1-151 model is operated by DE only mode, Hsync and Vsync input signals should
be fixed to “Low” for stable operation. Otherwise, the module could operate abnormally.
High Time TCH 4 - - nsec
Low Time TCL 4 - - nsec
Setup Time TDS 4 - - nsec
Hold Time TDH 4 - - nsec
Setup Time TES 4 - - nsec
Cycle TV 772 16.7 806 - msec lines
Display Period TV D 768 768 768 lines
Cycle TH - 672 - clocks
Display Period THD 512 512 512 clocks
Note
(1)
Doc. No : PI004
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SAMSUNG TFT-LCD
6.4 Timing diagrams of interface signal ( DE only mode )
TV
TVD
DE
TH
DCLK
TC
THD
DE
DATA
SIGNALS
DCLK
DISPLAY
DATA
DE
2.64V
50%
2.64V
Valid display data ( 512 clocks)
TC
TCH TCL
50%
TDS TDH
TES
50%
0.6V
2.64V
0.6V
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SAMSUNG TFT-LCD
6.5 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.
0.9 VDD 0.9 VDD
Power Supply
VDD
0.1 VDD
0V
0.1 VDD
0 ≤ T1 ≤ 10 msec
0 ≤ T2 ≤ 50 msec
0 ≤ T3 ≤ 50 msec
1sec ≤ T4
T1
T2
VALID
T3
T4
Signals
0 V
Back-light(Recommended)
Power On
50% 50%
Power Off
250 msec ≤ T5
50 msec ≤ T6
T5 T6
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 VDD.
(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 white.
(3) In case of VDD = off level, please keep the level of input signals on the low or 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 shall not be kept at high impedance when the power is on.
Doc. No : PI004
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SAMSUNG TFT-LCD
7. OUTLINE DIMENSION
Doc. No : PI004
20
SAMSUNG TFT-LCD
8. GENERAL PRECAUTIONS
8.1 Handling
(a) When the module is assembled, It should be attached to the system firmly
using every mounting holes. Be careful not to twist and bend the modules.
(b) 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.
(c) Note that polarizers are very fragile and could be easily damaged. Do not press or scratch
the surface harder than a HB pencil lead.
(d) Wipe off water droplets or oil immediately. If you leave the droplets for a long time,
Staining and discoloration may occur.
(e) If the surface of the polarizer is dirty, clean it using some absorbent cotton or soft cloth.
(f) 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.
(g) 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.
(h) Protect the module from static , it may cause damage to the CMOS Gate Array IC.
(i) Use finger-stalls with soft gloves in order to keep display clean during the incoming
inspection and assembly process.
(j) Do not disassemble the module.
(k) Do not pull or fold the lamp wire.
(l) Do not adjust the variable resistor which is located on the back side.
(m) Pins of I/F connector shall not be touched directly with bare hands.
Doc. No : PI004
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SAMSUNG TFT-LCD
8.2 Storage
(a) Do not leave the module in high temperature, and high humidity for a long time.
It is highly recommended to store the module with temperature from 0 to 35 °C and
relative humidity of less than 70%.
(b) Do not store the TFT-LCD module in direct sunlight.
(c) The module shall be stored in a dark place. It is prohibited to apply sunlight or fluorescent
light during the store.
8.3 Operation
(a) Do not connect,disconnect the module in the “ Power On” condition.
(b) Power supply should always be turned on/off by the item 6.5
“ Power on/off sequence “.
(c) Module has high frequency circuits. Sufficient suppression to the electromagnetic
interference shall 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 shall be a
minimized length and be connected directly . The 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. It may result in improper operation or disconnection
of electrode.
(c) Do not exceed the absolute maximum rating value. ( the supply voltage variation, input
voltage variation, variation in part contents and environmental temperature, so on)
Otherwise the module may be damaged.
(d) If the module displays the same pattern continuously for a long period of time,it can be
the situation when the image “sticks” 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.
Doc. No : PI004
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SAMSUNG TFT-LCD
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