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PRODUCT INFORMATION
ISSUED DATE : 2008-04-10
SAMSUNG TFT-LCD PRODUCT INFORMATION
SAMSUNG TFT-LCD PRODUCT INFORMATION
MODEL : LTM240CT04
MODEL : LTM240CT04
Note : This is Product Information is subject to change after 3 months of issuing date.
Application Engineering part 1, LCD Business
Samsung Electronics Co . , LTD.
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 1/34
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Contents PRODUCT INFORMATION
General Description --------------------------------------------------------------------------------- (3)
1. Absolute Maximum Ratings ------------------------------------------------------------------- (4)
2. Optical Characteristics --------------------------------------------------------------------------- (6)
3. Electrical Characteristics ---------------------------------------------------------------------- (11)
3.1 TFT LCD Module
3.2 Back Light Unit
4. Block Diagram ----------------------------------------------------------------------------------- (16)
4.1 TFT LCD Module
4.2 Back Light Unit
5. Input Terminal Pin Assignment -------------------------------------------------------------- (17)
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 --------------------------------------------------------------------------------- (26)
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 VDD Power Dip Condition
7. Outline Dimension ------------------------------------------------------------------------------- (30)
8. General Precaution ------------------------------------------------------------------------------ (32)
8.1 Handling
8.2 Storage
8.3 Operation
8.4 Others
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 2/34
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General Description PRODUCT INFORMATION
Description
LTM240CT04 is a color active matrix liquid crystal display (LCD) that uses amorphous
silicon TFT (Thin Film Transistor) as switching components. This model is composed of
a TFT LCD panel, a driver circuit and a back light unit. The resolution of a 24" is 1920 x
1200 and this model can display up to 16.7 millions colors.
Features
High contrast ratio, high aperture structure
TN (Twisted Nematic) mode
Wide Viewing Angle
High speed response
WUXGA (1920 x 1200 pixels) resolution
Low power consumption
DE (Data Enable) only mode
LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
Compact Size Design (Slim)
RoHS, TCO'03 compliant
Edge Type 2 dual CCFTs (Cold Cathode Fluorescent Tube)
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 Specification Unit Note
Pixel Pitch 0.270(H) x 0.270(W) mm
Active Display Area 518.4(H) x 324.0(V) mm
Surface Treatment Haze 25%, Hard coating 3H
Display Colors 16.7M (6bit Hi-FRC) colors
Number of Pixels 1,920 x 1,200 pixel
Pixel Arrangement RGB vertical stripe
Display Mode Normally White
Luminance of White 300(Typ.) cd/
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 3/34
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PRODUCT INFORMATION
Mechanical Information
Item Min. Typ. Max. Unit Note
Horizontal (H) 545.9 546.4 546.9 mm
Module w/o inverter ass'y
Vertical (V) 349.5 350.0 350.5 mm
size
Depth (D) - - 18.96 mm
Weight - - 3,300 g LCD module only
Note (1) Mechanical tolerance is 0.5mm unless there is a special comment.
1. Absolute Maximum Ratings
If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.
Item Symbol Min. Max. Unit Note
Power Supply Voltage VDD VSS-0.5 5.5 V (1)
Data Signal Vsig - 5 V
Storage temperature TSTG -20 60 (2)
Center of Glass surface temperature
TOPR 0 50 (2)
(Operation)
Shock ( non - operating ) Snop - 50 G (3)(5)
Vibration ( non - operating ) Vnop - 1.5 G (4)(5)
Note (1) Ta= 25 2 C
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 4/34
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PRODUCT INFORMATION
(2) Temperature and relative humidity range are shown in the figure below.
a. 90 % RH Max. (Ta 39 C)
b. Maximum wet-bulb temperature at 39 C or less. (Ta 39 C)
c. No condensation
(3) 11ms, sine wave, one time for X, Y, Z axis
(4) 10-300 Hz, Sweep rate 10min, 30min for X,Y,Z axis
(5) 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.
(39,90)
(50,50.4)
(60,27.7)
(-20,5)
Fig. Temperature and Relative humidity range
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 5/34
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2. Optical Characteristics PRODUCT INFORMATION
The optical characteristics should be measured in a dark room or equivalent.
Measuring equipment : SR-3, RD-80S (TOPCON), EZ-Contrast (Eldim)
(Ta = 25 2 C, VDD=5V, fv= 60Hz, fDCLK=77MHz, IL = 7.5mArms)
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio
C/R 600 1000 - SR-3
(Center of screen)
Response (3)
On/Off Tr + Tf - 5 8 msec
Time(On/Off) RD-80S
Luminance of White
YL 250 300 - cd/m2 SR-3
(Center of screen)
Rx 0.620 0.650 0.680
Red
Ry 0.307 0.337 0.367
Gx 0.266 0.296 0.326
Green
Color Gy 0.574 0.604 0.634
Chromaticity
(CIE 1931) Bx 0.117 0.147 0.177
Blue Normal
L,R=0
By 0.043 0.073 0.103
U,D=0
Wx 0.283 0.313 0.343
White Viewing (1),(5)
Wy Angle 0.299 0.329 0.359
PR650
Ru' - 0.453 -
Red
Rv' - 0.528 -
Gu' - 0.123 -
Color Green
Chromaticity Gv' - 0.563 -
(CIE 1976) Bu' - 0.164 -
Blue
Bv' - 0.183 -
Wu' - 0.198 -
White
Wv' - 0.468 -
C.G.L
White u'v' - - 0.02 (9)
(ACC ONLY)
* C.G.L : Color Grayscale Linearity
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 6/34
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PRODUCT INFORMATION
Item Symbol Condition Min. Typ. Max. Unit Note
Color Gamut - - 72 - %
Color Temperature - - 6500 - K
L
70 80 -
Hor.
70 80 - (1),(5)
Viewing R
CR 10 Degrees
Angle 70 80 -
U SR-3
Ver.
D
70 80 -
Brightness Uniformity (2)
Buni - - 25 %
(9 Points) SR-3
Note (1) Test Equipment Setup
The measurement should be executed in a stable, windless and dark room between
30min 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
Environment condition : Ta = 25 2 C
Photo detector
Photo detector Field
SR-3 2
Field
SR-3 : 40
RD-80S : 50
TFT - LCD Module
LCD Panel
The center of the screen
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 7/34
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PRODUCT INFORMATION
Note (2) Definition of test point
192 960 1728
Active Area
9 8 7 120
6 5 4 600
3 2 1
1080
: Test Point
Note (3) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point of the panel
G max
CR
G min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
Note (4) Definition of 9 points brightness uniformity
( B max B min)
Buni 100 u
B max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (5) Definition of Response time : Sum of Tr, Tf
Display Data White(TFT off) Black(TFT on) White(TFT off)
Optical Instruments 100%
Response
90%
10%
0%
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 8/34
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PRODUCT INFORMATION
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 (CR 10,5)
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PRODUCT INFORMATION
Note (9) Color Grayscale Linearity
a. Test image : 100% full white pattern with a test pattern as below
b. Test pattern : Squares, 40mm by 40mm in size, filled with 255, 225, 195, 165, 135 and
105 grays steps should be arranged at the center of the screen.
c. Test method
-1st gray step : move a square of 255 gray level should be moved into the center of the
screen and measure luminance and u' and v' coordinates.
- Next gray step : Move a 225 gray square into the center and measure both
luminance and coordinates, too.
d. Test evaluation
'u' v' = (u' A - u' B) 2 + (v' A - v' B) 2
Where A, B : 2 gray levels found to have the largest color differences between them
i.e. get the largest u' and v' of each 6 pair of u' and v' and calculate the u'v'.
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 10/34
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3. Electrical Characteristics PRODUCT INFORMATION
3.1 TFT LCD Module
The connector for display data & timing signal should be connected.
Ta = 25 C
Item Symbol Min. Typ. Max. Unit Note
Voltage of Power Supply VDD 4.5 5.0 5.5 V (1)
Differential Input High - - +100 mV (2)
Voltage for LVDS
Receiver Threshold Low -100 - - mV
LVDS skew tSKEW -300 300 ps (3)
LVDS
Input Differential input
|VID| 200 600 mV (4)
Characteri voltage
stics
Input voltage range
VIN 0 2.4 V (4)
(single-ended)
Common mode 0+ 2.4-
VCM 1.2 V (4)
voltage |VID|/2 |VID|/2
(a) White - 1100 - mA
Current of
Power (b) Black IDD - 1600 - mA (5),(6)
Supply
(c) Dot - 1900 3000 mA
Vsync Frequency fV 53 60 63 Hz
Hsync Frequency fH 65 74 78 kHz
Main Frequency fDCLK 68 77 81 MHz
Rush Current IRUSH - - 5.0 A (7)
Note (1) The ripple voltage should be controlled under 10% of VDD.
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PRODUCT INFORMATION
(2) Differential receiver voltage definitions and propagation delay and transition time test
circuit
a. All input pulses have frequency = 10MHz, tR or tF=1ns
b. CL includes all probe and fixture capacitance
Note a.
Note b.
(3) LVDS Receiver DC parameters are measured under static and steady conditions
which may not be reflective of its performance in the end application.
T
LVDS Clk VDIFF= 0V VDIFF= 0V Differential
LVDS Data Differential
RX +/-
tSKEW
where tskew : skew between LVDS clock & LVDS data,
T : 1 period time of LVDS clock
cf) (-/+) of 300psec means LVDS data goes before or after LVDS clock.
(4) Definition of VID and VCM using single-end signals
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 12/34
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PRODUCT INFORMATION
(5) fV=60Hz, fDCLK = 77MHz, VDD = 5.0V, DC Current.
(6) Power dissipation check pattern (LCD Module only)
a) Black Pattern b) White Pattern c) Dot Pattern
(7) Measurement Condition
VDD
100%
90%
10%
GND
TRUSH=470
Rush Current IRUSH can be measured when TRUSH. is 470 .
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 13/34
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PRODUCT INFORMATION
3.2 Back Light Unit
The back light unit 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 2C
Item Symbol Min. Typ. Max. Unit Note
Lamp Current IL 4.0 7.5 8.0 mArms (1)
Lamp Voltage VL - 900 - Vrms
Lamp Frequency fL 40 - 60 kHz (2)
Operating Life Time Hr 50,000 - - Hour (3)
Asymmetry
Wasy - - 10 %
Inverter rate
(4)
waveform Distortion
Wdis 1.2726 1.414 1.5554
rate
0 : 1,900
Startup Voltage Vs - - Vrms (5)
25 : 1,500
Note (1) Specified values are for a single lamp.
Lamp current is measured with current meter for high frequency as shown below.
Refer to the following block diagram of the back light unit for more information.
HOT(RED)
COLD(WHITE) I1
HOT(BLUE) A
COLD(GRAY) I2
A INVERTER
LCD Module HOT(RED)
(SI1700)
COLD(WHITE) I3
HOT(BLUE) A
COLD(GRAY) I4
A
Fig. Measurement point of Lamp Current
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(2) Lamp frequency which may produce interference with horizontal synchronous
frequency 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) Life time (Hr) is defined as the time when brightness of a lamp unit itself becomes
50% or less than its original value at the condition of Ta = 25 2 C and IL = 7.5mArms
(4) Designing a system inverter intended to have better display performance, power
efficiency and lamp reliability.
They would help increase the lamp lifetime and reduce leakage current.
a. The measurement should be done at typical lamp current.
b. The asymmetry rate of the inverter waveform should be less than 10%.
c. The distortion rate of the waveform should be 2 with 10% tolerance.
- Inverter output waveform had better be more similar to ideal sine wave.
Asymmetry rate
Ip | Ip I - p|
u 100
Irms
Distortion rate
I-p
Ip I -p
| | or | |
Irms Irms
Fig. Wave form of the inverter
(5) If an inverter has shutdown function, it should keep its output for over 1 second
even if the lamp connector is open. Otherwise the lamps may not be turned on.
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 15/34
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4. BLOCK DIAGRAM PRODUCT INFORMATION
4.1 TFT LCD Module
RSDS
Control signal Source Driver ICs
LVDS S1 S1920
pair #1
LVDS (Rx)
Control signal Column Driver Circuit
LVDS(Tx)
LVDS
pair #2
RSDS(Tx)
CN1
(30pin) TFT-LCD
(1920 x RGB x 1200 pixels)
Timing Controller
+5.0V
VDD Power
Circuit
4.2 Back Light Unit
Connector: YEONHO 35001HS-04L or equivalent
1 HOT(RED)
LAMP(CCFL)
2 COLD(WHITE)
LAMP(CCFL) 3 HOT(BLUE)
4 COLD(GRAY)
1 HOT(RED)
LAMP(CCFL) COLD(WHITE)
2
HOT(BLUE)
LAMP(CCFL) 3 COLD(GRAY)
4
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 16/34
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PRODUCT INFORMATION
5. Input Terminal Pin Assignment
5.1. Input Signal & Power ( Connector : UJU IS100-L30O-C23 or equivalent )
PIN NO SYMBOL FUNCTION
1 RXO0N Negative LVDS differential data output
2 RXO0P Positive LVDS differential data output
3 RXO1N Negative LVDS differential data output
4 RXO1P Positive LVDS differential data output
5 RXO2N Negative LVDS differential data output
6 RXO2P Positive LVDS differential data output
7 GND Ground
8 RXOC- Negative Sampling Clock (ODD data)
9 RXOC+ Positive Sampling Clock (ODD data)
10 RXO3N Negative LVDS differential data output
11 RXO3P Positive LVDS differential data output
12 RXE0N Negative LVDS differential data output
13 RXE0P Positive LVDS differential data output
14 GND Ground
15 RXE1N Negative LVDS differential data output
16 RXE1P Positive LVDS differential data output
17 GND Ground
18 RXE2N Negative LVDS differential data output
19 RXE2P Positive LVDS differential data output
20 RXEC- Negative Sampling Clock (EVEN data)
21 RXEC+ Positive Sampling Clock (EVEN data)
22 RXE3N Negative LVDS differential data output
23 RXE3P Positive LVDS differential data output
24 GND Ground
25 NC * CE (For LCD internal use only. Do not connect)
26 NC * CTL (For LCD internal use only. Do not connect)
27 NC No Connection
28 VDD
29 VDD Power Supply : +5V
30 VDD
* If the system already uses the 25, 26pins, it should keep under GND level
The voltage applied to those pins should not exceed -200mV.
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PRODUCT INFORMATION
Note) Pin number starts from Right side
PCB
Pin No. 1 Pin No. 30
#1 #30
UJU IS100-L30O-C23 or equivalent
#1 #30
Fig. Connector diagram
a. All GND pins should be connected together and also be connected to the
LCD's metal chassis.
b. All power input pins should be connected together.
c. All NC pins should be separated from other signal or power.
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 18/34
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PRODUCT INFORMATION
5.2 LVDS Interface (1)
5.2.1 Odd Pixel Data (1st pixel data)
LVDS Transmitter ( DS90C383, DS90C385 ) Signal Interface
To LTM240CT04
Device Input Pin Device Input Signal Output Interface ( CN101 )
Signal
No Symbol Symbol Function Terminal Symbol
51 TXIN0 RO0 Red Odd Pixel Data (LSB)
52 TXIN1 RO1 Red Odd Pixel Data
TXOUT0- No. 1 RXO0-
54 TXIN2 RO2 Red Odd Pixel Data
TXOUT0+ No. 2 RXO0+
55 TXIN3 RO3 Red Odd Pixel Data
56 TXIN4 RO4 Red Odd Pixel Data
TXOUT3- No. 10 RXO3-
2 TXIN5 RO7 Red Odd Pixel Data (MSB)
TXOUT3+ No. 11 RXO3+
3 TXIN6 RO5 Red Odd Pixel Data TXOUT0- No. 1 RXO0-
4 TXIN7 GO0 Green Odd Pixel Data (LSB) TXOUT0+ No. 2 RXO0+
6 TXIN8 GO1 Green Odd Pixel Data TXOUT1- No. 3 RXO1-
7 TXIN9 GO2 Green Odd Pixel Data TXOUT1+ No. 4 RXO1+
8 TXIN10 GO6 Green Odd Pixel Data TXOUT3- No. 10 RXO3-
10 TXIN11 GO7 Green Odd Pixel Data (MSB) TXOUT3+ No. 11 RXO3+
11 TXIN12 GO3 Green Odd Pixel Data
12 TXIN13 GO4 Green Odd Pixel Data TXOUT1- No. 3 RXO1-
14 TXIN14 GO5 Green Odd Pixel Data TXOUT1+ No. 4 RXO1+
15 TXIN15 BO0 Blue Odd Pixel Data (LSB)
16 TXIN16 BO6 Blue Odd Pixel Data TXOUT3- No. 10 RXO3-
18 TXIN17 BO7 Blue Odd Pixel Data (MSB) TXOUT3+ No. 11 RXO3+
TXOUT1- No. 3 RXO1-
19 TXIN18 BO1 Blue Odd Pixel Data
TXOUT1+ No. 4 RXO1+
20 TXIN19 BO2 Blue Odd Pixel Data
22 TXIN20 BO3 Blue Odd Pixel Data TXOUT2- No. 5 RXO2-
23 TXIN21 BO4 Blue Odd Pixel Data TXOUT2+ No. 6 RXO2+
24 TXIN22 BO5 Blue Odd Pixel Data
TXOUT3- No. 10 RXO3-
50 TXIN27 RO6 Red Odd Pixel Data
TXOUT3+ No. 11 RXO3+
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PRODUCT INFORMATION
5.2.2 Even Pixel Data (2nd pixel data)
LVDS Transmitter ( DS90C383, DS90C385 ) Signal Interface
To LTM240CT04
Device Input Pin Device Input Signal Output Interface ( CN101 )
Signal
No Symbol Symbol Function Terminal Symbol
51 TXIN0 RE0 Red Even Pixel Data (LSB)
52 TXIN1 RE1 Red Even Pixel Data
TXOUT0- No. 12 RXE0-
54 TXIN2 RE2 Red Even Pixel Data
TXOUT0+ No. 13 RXE0+
55 TXIN3 RE3 Red Even Pixel Data
56 TXIN4 RE4 Red Even Pixel Data
TXOUT3- No. 22 RXE3-
2 TXIN5 RE7 Red Even Pixel Data (MSB)
TXOUT3+ No. 23 RXE3+
3 TXIN6 RE5 Red Even Pixel Data TXOUT0- No. 12 RXE0-
4 TXIN7 GE0 Green Even Pixel Data (LSB) TXOUT0+ No. 13 RXE0+
6 TXIN8 GE1 Green Even Pixel Data TXOUT1- No. 15 RXE1-
7 TXIN9 GE2 Green Even Pixel Data TXOUT1+ No. 16 RXE1+
8 TXIN10 GE6 Green Even Pixel Data TXOUT3- No. 22 RXE3-
10 TXIN11 GE7 Green Even Pixel Data (MSB) TXOUT3+ No. 23 RXE3+
11 TXIN12 GE3 Green Even Pixel Data
12 TXIN13 GE4 Green Even Pixel Data TXOUT1- No. 15 RXE1-
14 TXIN14 GE5 Green Even Pixel Data TXOUT1+ No. 16 RXE1+
15 TXIN15 BE0 Blue Even Pixel Data (LSB)
16 TXIN16 BE6 Blue Even Pixel Data TXOUT3- No. 22 RXE3-
18 TXIN17 BE7 Blue Even Pixel Data (MSB) TXOUT3+ No. 23 RXE3+
TXOUT1- No. 15 RXE1-
19 TXIN18 BE1 Blue Even Pixel Data
TXOUT1+ No. 16 RXE1+
20 TXIN19 BE2 Blue Even Pixel Data
22 TXIN20 BE3 Blue Even Pixel Data TXOUT2- No. 18 RXE2-
23 TXIN21 BE4 Blue Even Pixel Data TXOUT2+ No. 19 RXE2+
24 TXIN22 BE5 Blue Even Pixel Data
TXOUT3- No. 22 RXE3-
50 TXIN27 RE6 Red Even Pixel Data
TXOUT3+ No. 23 RXE3+
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PRODUCT INFORMATION
5.2 LVDS Interface (2)
5.2.3 Odd Pixel Data (1st pixel data)
LVDS Transmitter ( DS90C387 ) Signal Interface
To LTM240CT04
Device Input Pin Device Input Signal Output Interface ( CN101 )
Signal
No Symbol Symbol Function Terminal Symbol
10 R10 RO0 Red Odd Pixel Data (LSB)
9 R11 RO1 Red Odd Pixel Data
A0M No. 1 RXO0-
8 R12 RO2 Red Odd Pixel Data
A0P No. 2 RXO0+
7 R13 RO3 Red Odd Pixel Data
6 R14 RO4 Red Odd Pixel Data
A3M No. 10 RXO3-
3 R17 RO7 Red Odd Pixel Data (MSB)
A3P No. 11 RXO3+
5 R15 RO5 Red Odd Pixel Data A0M No. 1 RXO0-
2 G10 GO0 Green Odd Pixel Data (LSB) A0P No. 2 RXO0+
1 G11 GO1 Green Odd Pixel Data A1M No. 3 RXO1-
100 G12 GO2 Green Odd Pixel Data A1P No. 4 RXO1+
94 G16 GO6 Green Odd Pixel Data A3M No. 10 RXO3-
93 G17 GO7 Green Odd Pixel Data (MSB) A3P No. 11 RXO3+
99 G13 GO3 Green Odd Pixel Data
96 G14 GO4 Green Odd Pixel Data A1M No. 3 RXO1-
95 G15 GO5 Green Odd Pixel Data A1P No. 4 RXO1+
92 B10 BO0 Blue Odd Pixel Data (LSB)
86 B16 BO6 Blue Odd Pixel Data A3M No. 10 RXO3-
85 B17 BO7 Blue Odd Pixel Data (MSB) A3P No. 11 RXO3+
A1M No. 3 RXO1-
91 B11 BO1 Blue Odd Pixel Data
A1P No. 4 RXO1+
90 B12 BO2 Blue Odd Pixel Data
89 B13 BO3 Blue Odd Pixel Data A2M No. 5 RXO2-
88 B14 BO4 Blue Odd Pixel Data A2P No. 6 RXO2+
87 B15 BO5 Blue Odd Pixel Data
A3M No. 10 RXO3-
4 R16 RO6 Red Odd Pixel Data
A3P No. 11 RXO3+
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5.2.4 Even Pixel Data (2nd pixel data)
LVDS Transmitter ( DS90C387 ) Signal Interface
To LTM240CT04
Device Input Pin Device Input Signal Output Interface ( CN101 )
Signal
No Symbol Symbol Function Terminal Symbol
84 R20 RE0 Red Even Pixel Data (LSB)
81 R21 RE1 Red Even Pixel Data
A4M No. 12 RXE0-
80 R22 RE2 Red Even Pixel Data
A4P No. 13 RXE0+
79 R23 RE3 Red Even Pixel Data
78 R24 RE4 Red Even Pixel Data
A7M No. 22 RXE3-
75 R27 RE7 Red Even Pixel Data (MSB)
A7P No. 23 RXE3+
77 R25 RE5 Red Even Pixel Data A4M No. 12 RXE0-
74 G20 GE0 Green Even Pixel Data (LSB) A4P No. 13 RXE0+
73 G21 GE1 Green Even Pixel Data A5M No. 15 RXE1-
72 G22 GE2 Green Even Pixel Data A5P No. 16 RXE1+
66 G26 GE6 Green Even Pixel Data A7M No. 22 RXE3-
65 G27 GE7 Green Even Pixel Data (MSB) A7P No. 23 RXE3+
71 G23 GE3 Green Even Pixel Data
70 G24 GE4 Green Even Pixel Data A5M No. 15 RXE1-
69 G25 GE5 Green Even Pixel Data A5P No. 16 RXE1+
64 B20 BE0 Blue Even Pixel Data (LSB)
58 B26 BE6 Blue Even Pixel Data A7M No. 22 RXE3-
57 B27 BE7 Blue Even Pixel Data (MSB) A7P No. 23 RXE3+
A5M No. 15 RXE1-
63 B21 BE1 Blue Even Pixel Data
A5P No. 16 RXE1+
62 B22 BE2 Blue Even Pixel Data
61 B23 BE3 Blue Even Pixel Data A6M No. 18 RXE2-
60 B24 BE4 Blue Even Pixel Data A6P No. 19 RXE2+
59 B25 BE5 Blue Even Pixel Data
A7M No. 22 RXE3-
76 R26 RE6 Red Even Pixel Data
A7P No. 23 RXE3+
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 22/34
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PRODUCT INFORMATION
5.2.5 Timing Diagrams of LVDS For Transmitting
LVDS Receiver : Integrated T-CON
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 23/34
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PRODUCT INFORMATION
5.3 Back Light Unit
Pin No. Input Color Function
1 Hot1 RED High Voltage
2 Cold1 White Ground
Upper
3 Hot2 Blue High Voltage
4 Cold2 Gray Ground
1 Hot1 RED High Voltage
2 Cold1 White Ground
Lower
3 Hot2 Blue High Voltage
4 Cold2 Gray Ground
Connect
or YEONHO 35001HS-04L
Part No.
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 24/34
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PRODUCT INFORMATION
5.3 Input Signals, Basic Display Colors and Gray Scale of Each Color
DATA SIGNAL
GRAY
DISPLAY RED GREEN BLUE
COLOR SCALE
(8bit)
LEVEL
R0 R1 R2 R3 R4 R5 R6 R7 G0 G1 G2 G3 G4 G5 G6 G7 B0 B1 B2 B3 B4 B5 B6 B7
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 -
BASIC
COLOR 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
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
DARK 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
GRAY
SCALE : : : : : : : : : : : : : : : : : : R3~
OF : : : : : : : : : : : : : : : : : : R252
RED
LIGHT 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
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
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
DARK 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
GRAY
: : : : : : : : : : : : : : : : : :
SCALE G3~
OF : : : : : : : : : : : : : : : : : : G252
GREEN
LIGHT 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
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
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
DARK 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
GRAY
SCALE : : : : : : : : : : : : : : : : : : B3~
OF : : : : : : : : : : : : : : : : : : B252
BLUE
LIGHT 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
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
Note (1) 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
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 25/34
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PRODUCT INFORMATION
6. Interface Timing
6.1 Timing Parameters ( DE only mode )
SIGNAL ITEM SYMBOL MIN. TYP. MAX. Unit NOTE
Clock 1/TC 68 77 81 MHz -
Hsync Frequency FH 65 74 78 KHz -
Vsync FV 53 60 63 Hz -
Active
Display TVD 1200 1200 1200 lines -
Vertical
Period
Display Term
Vertical Total TV 1209 1235 1245 lines -
Active
Display THD 960 960 960 clocks -
Horizontal Period
Display Term
Horizontal
TH 993 1040 1075 clocks -
Total
Note (1) This product is DE only mode. The input of Hsync & Vsync signal does
not have an effect on normal operation.
(2) Test Point : TTL control signal and CLK at LVDS Tx input terminal in system
(3) Internal Vcc = 3.3V
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 26/34
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PRODUCT INFORMATION
6.2 Timing diagrams of interface signal ( DE only mode )
TV
TVD TVB
DE
TH
THD
DE
DCLK
TC
DATA
SIGNALS
TC
TCH TCL
DCLK 0.5
VCC
TDS TDH
DISPLAY 0.5
DATA
VCC
TES
DE 0.5
VCC
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 27/34
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PRODUCT INFORMATION
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.
300 T1 10msec
0 T2 50msec
0 T3 50msec
1sec T4
Back-Light
(Recommended)
500msec T5
100msec T6
T1 : VDD rising time from 10% to 90%
T2 : The time from VDD to valid data at power ON.
T3 : The time from valid data off to VDD off at power Off.
T4 : VDD off time for Windows restart
T5 : The time from valid data to B/L enable at power ON.
T6 : The time from valid data off to B/L disable at power Off.
The supply voltage of the external system for the Module input should be the same
as the definition of VDD.
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 show abnormal screen.
In case of VDD = off level,
please keep the level of input signals low or keep a high impedance.
T4 should be measured after the Module has been fully discharged between power off
and on period.
Interface signal should not be kept at high impedance when the power is on.
MODEL LTM240CT04 Doc. No PI-LTM240CT04 Page 28/34
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PRODUCT INFORMATION
6.4 VDD Power Dip Condition
VDD Td
90%
80% VCC
GND
4.5V VDD 5.5V
If VDD(typ.) x 80% VCC VDD(typ) x 90%
Then, 0
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