SAMSUNG LTM190EX-L31 Specification

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Approval Specification

Approval Specification

Customer :

SAMSUNG TFT--

SAMSUNG TFT

SAMSUNG TFT-LCD

MODEL : :

MODEL

MODEL : LTM190EX-L31-2

Any Modification of Specification is not allowed without SEC's Permission.

NOTE :

LCD

LCD

LTM190EX--

LTM190EX

DATE : 31 / Jul / 2008

L31--22

L31

Customer’’

Customer

SIGNATURE

s Approval

s Approval

DATE

PREPARED BY

APPROVAED BY

DATE

31/Jul/’08

DATE

31/Jul/’08

Application Engineering Part 1(HD), LCD Business

Samsung Electronics Co . , LTD.

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Contents

Revision History -------------------------------------------------------------------------------------- (3)

General Description --------------------------------------------------------------------------------- (4)

1. Absolute Maximum Ratings ------------------------------------------------------------------- (5)

2. Optical Characteristics -------------------------------------------------------------------------- (7)

3. Electrical Characteristics ------------------------------------------------------------------------(12)

3.1 TFT LCD Module

3.2 Back Light Unit

4. Block Diagram ----------------------------------------------------------------------------------- (17)

4.1 TFT LCD Module

4.2 Back Light Unit

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5. Input Terminal Pin Assignment -------------------------------------------------------------- (18)

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 --------------------------------------------------------------------------------- (25)

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 ------------------------------------------------------------------------------- (29)

8. Reliability Test ------------------------------------------------------------------------------------ (31)

9. Packing -------------------------------------------------------------------------------------------- (32)

10. Marking & Others ------------------------------------------------------------------------------- (33)

11. General Precaution ---------------------------------------------------------------------------- (35)

11.1 Handling

11.2 Storage

11.3 Operation

11.4 Others

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* Revision History

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Approval Specification

Approval Specification

Date

2008

Rev.

No

SummaryPage

Approval specification of LTM190EX-L31-2 model was issued first.All000Jul. 09,

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General Description

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Description

LTM190EX-L31 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 19.0“ is 1280
x 1024 and this model can display up to 16.7 millions colors.

Features

 RoHS compliance (Pb-free)
 High contrast ratio, high aperture ratio, fast response time
 TN(Twisted Nematic) mode
 2 dual CCFTs(Cold Cathode Fluorescent Tube)
 DE(Data Enable) mode
 LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
 COMPACT SIZE DESIGN
 TCO’03 compliance

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

Haze 25%, Hard Coating(3H)Surface Treatment

UnitSpecificationItems

mm0.294(H) x 0.294(W)Pixel Pitch

mm376.32(H) x 301.056(V)Active Display Area

colors16.7M ( 6bit Hi-FRC)Display Colors

pixel1280 x 1024Number of Pixels

Note

RGB vertical stripePixel Arrangement

Normally WhiteDisplay Mode

25 Watt (Typ.)Power Consumption

cd/༇300(Typ.)Luminance of White

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Mechanical Information

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Approval Specification

Max.

396.5

mm396.0395.5Horizontal (H)

Module

324.5

mm324.0323.5Vertical (V)

size

17.0

mm--Depth (D)

2.450

Note (1) Mechanical tolerance is · 0.5mm unless there is a special comment.

1. Absolute Maximum Ratings

NoteUnitTyp.Min.Item

w/o inverter ass’y

LCD module onlyg--Weight

If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.

NoteUnitMax.Min.SymbolItem

Power Supply Voltage

Data Signal

Storage temperature

Center of Glass surface temperature

(Operation)

Shock ( non - operating )

Vibration ( non - operating )

Note (1) Ta= 25 · 2 ¶C

DD

sig

STG

OPR

nop

nop

V5-V

60-25T

500T

୅

୅

(1)V6.5GND-0.5V

(2)

(2)

(3)G50-S

(4)G1.5-V

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(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

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(39,90)

(39,90)

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(50,50.4)

(50,50.4)

25,5)

((--25,5)

Fig. Temperature and Relative humidity range

(60,27.7)

(60,27.7)

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2. Optical Characteristics

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The optical characteristics should be measured in a dark room or equivalent.

Measuring equipment : TOPCON RD-80S,SPECTRORADIOMETER SR-3

(Ta = 25 · 2¶C, VDD=5V, fv= 60Hz, fDCLK=54MHz, IL = 7.5mArms)

NoteUnitMax.Typ.Min.ConditionSymbolItem

Contrast Ratio

(Center of screen)

Response

Time

Luminance of White

(Center of screen)

Green

Color

Chromaticity

(CIE 1931)

Red

Blue

White

-1,000600C/R

85-Tr+TfOn/Off

L

0.6700.6400.610Rx

0.3590.3290.299Ry

0.3300.3000.270Gx

Normal



ɂ

/5



ɂ

8'

Viewing

Angle

0.6300.6000.570Gy

0.1800.1500.120Bx

0.0900.0600.030By

0.3430.3130.283Wx

0.3590.3290.299Wy

msec

cd/m2-300250Y

(3)

SR-3

(5)

RD-80S

(6)

SR-3

(7),(8)

Red

Color

Chromaticity

(CIE 1976)

C.G.L*

* C.G.L : Color Grayscale Linearity

Green

Blue

White

Ƹu'v'White

-0.452-Ru'

-0.522-Rv'

-0.125-Gu'

-0.563-Gv'

-0.175-Bu'

-0.158-Bv'

-0.198-Wu'

-0.468-Wv'

SR-3

(9)0.02--

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NoteUnitMax.Typ.Min.ConditionSymbolItem

%-72--Color Gamut

K-6500--Color Temperature

ɂ

Hor.

Viewing

Angle

Ver.

Brightness Uniformity

(9 Points)

L

ɂ

R

ɂ

U

ɂ

D

uni

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

CR˻10

-8070

-8070
Degrees

-8070

-8070

%25--B

(8)

SR-3

(4)

SR-3

Field Photo detector

1ദSR-3

TFT - LCD Module

Photo detector

Field

The center of the screen

SR-3 : 50໅

RD-80S

: 50໅

LCD Panel

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B

Note (2) Definition of test point

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128 640 1152

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Active Area

6

: Test Point

Note (3) Definition of Contrast Ratio (C/R)

: Ratio of gray max (Gmax) & gray min (Gmin) at the center point㽶 of the panel

3 2 1

G

CR

=

G

Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black

max

min

8 79

45

102

512

922

Note (4) Definition of 9 points brightness uniformity

Buni

BB

=×

100

(max min)

−

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

Response

100%

90%

10%

0%

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Note (6) Definition of Luminance of White : Luminance of white at center point㽶

Note (7) Definition of Color Chromaticity (CIE 1931, CIE1976)

Color coordinate of Red, Green, Blue & White at center point㽶

Note (8) Definition of Viewing Angle

: Viewing angle range (CR ı10, 5)

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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 centerྜྷ of the screen.

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c. Test method

st

gray step : move a square of 255 gray level should be moved into the center of the

-1
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

Δu' v'= (u' - u' ) + (v' - v' )

AB

2

AB

2

Where A, B : 2 gray levels found to have the largest color differences between them

i.e. get the largest ȟu’ and ȟv’ of each 6 pair of u’ and v’ and calculate the ȟu’v’.

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3. Electrical Characteristics

3.1 TFT LCD Module

The connector for display data & timing signal should be connected.

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Ta = 25¶C

NoteUnitMax.Typ.Min.SymbolItem

Voltage of Power Supply

Differential Input

Voltage for LVDS

Receiver Threshold

LVDS

Input

Characteri

stics

LVDS skew

Differential input

voltage

Input voltage range

(single-ended)

Common mode

voltage

Current of

(a) Black

Power

Supply

Vsync Frequency

Hsync Frequency

DD

SKEW

IN

V

CM

I

DD

V

H

|V

0+

ID

|/2

1.2

2.4-

|V

(1)V5.55.04.5V

(2)mV+100--High

mV---100Low

(3)ps300--300t

(4)mV600-200|VID|

(4)V2.4-0V

(4)V

|/2

ID

mA-950-

mA-750-(b) White (5),(6)

mA13001100-(c) Dot

Hz766049f

kHz816452.2f

Main Frequency

Rush Current

DCLK

RUSH

Note (1) The ripple voltage should be controlled under 10% of V

DD

MHz68.45444.1f

(7)A3.0--I

.

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(2)

Differential receiver voltage definitions and propagation delay and transition time test

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circuit

a. All input pulses have frequency = 10MHz, t

includes all probe and fixture capacitance

b. C

L

or tF=1ns

R

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.

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T

LVDS Clk

V

= 0V

DIFF

LVDS Data
RX +/-

t

SKEW

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 V

and V

ID

using single-end signals

CM

= 0V

V

DIFF

Differential

Differential

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(5) fV=60Hz, fDCLK = 54MHz, VDD = 5.0V, DC Current.
(6) Power dissipation check pattern (LCD Module only)

a) Black Pattern b) White Pattern c) Dot Pattern

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(7) Measurement Conditions.

100%

90%

10%
GND

Rush Current I

can be measured when T

RUSH

T

RUSH

=470༕

. is 470༕.

RUSH

V

DD

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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 · 2¶C

NoteUnitMax.Typ.Min.SymbolItem

Lamp Current

Lamp Voltage

Lamp Frequency

Asymmetry

Inverter

waveform

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.

rate

Distortion

rate

L

L

L

(1)mArms8.07.53.0I

Vrms-650-V

(2)kHz60-40f

(3)Hour--50,000HrOperating Life Time

%10--Wasy

(4)

1.55541.4141.2726Wdis

0୅ : 1,650

--VsStartup Voltage

25୅: 1,450

(5)Vrms

LCD Module

HOT(RED)

COLD(WHITE)

HOT(BLUE)

COLD(GRAY)

HOT(RED)

COLD(WHITE)

HOT(BLUE)

COLD(GRAY)

I

1

A

I

2

A

I

3

INVERTER

A

I

4

A

Fig. Measurement point of Lamp Current

(SI1700)

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I

I

I

(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 I

(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.

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= 7.5mArms

L

 Asymmetry rate

p-p

||II

I

p

I

-p

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.

 Distortion rate

−

rms

p

I

||

rms

or

× 100

-p

I

||

rms

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4. BLOCK DIAGRAM

4.1 TFT LCD Module

RSDS

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LVDS

pair #1

LVDS

pair #2

+5.0V

V

DD

CN1

(30pin)

LVDS (Rx)

Timing Controller

4.2 Back Light Unit

Power
Circuit

LVDS(Tx)

RSDS(Tx)

Control signal

Source Driver ICs

S1 S1280

Control signal

Column Driver Circuit

TFT-LCD

(1280 x RGB x 1024 pixels)

LAMP(CCFL)

LAMP(CCFL)

LAMP(CCFL)

LAMP(CCFL)

LAMP(CCFL)

LAMP(CCFL)

LAMP(CCFL)

LAMP(CCFL)

HOT(RED)

1

COLD(WHITE)

2

HOT(BLUE)

3

COLD(GRAY)

4

HOT(RED)

1

COLD(WHITE)

2

HOT(BLUE)

3

COLD(GRAY)

4

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5. Input Terminal Pin Assignment

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5.1. Input Signal & Power ( Connector : UJU IS100-L30O-C23 or Compatible )

FUNCTIONSYMBOLPIN NO

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

RXO0+

RXO1-

Negative Transmission Data of Pixel 0 (ODD data)RXO0-

Positive Transmission Data of Pixel 0 (ODD data)

Negative Transmission Data of Pixel 1 (ODD data)

Positive Transmission Data of Pixel 1 (ODD data)RXO1+

Negative Transmission Data of Pixel 2 (ODD data)RXO2-

Positive Transmission Data of Pixel 2 (ODD data)RXO2+

Power GroundGND

Negative Sampling Clock (ODD data)RXOC-

Positive Sampling Clock (ODD data)RXOC+

Negative Transmission Data of Pixel 3 (ODD data)RXO3-

Positive Transmission Data of Pixel 3 (ODD data)RXO3+

Negative Transmission Data of Pixel 0 (EVEN data)RXE0-

Positive Transmission Data of Pixel 0 (EVEN data)RXE0+

Power GroundGND

Negative Transmission Data of Pixel 1 (EVEN data)RXE1-

16

17

18

19

20

21

22

23

24

25

26

27

28

29 Power Supply : +5V

30

V

DD

V

DD

V

DD

Positive Transmission Data of Pixel 1 (EVEN data)RXE1+

Power GroundGND

Negative Transmission Data of Pixel 2 (EVEN data)RXE2-

Positive Transmission Data of Pixel 2 (EVEN data)RXE2+

Negative Sampling Clock (EVEN data)RXEC-

Positive Sampling Clock (EVEN data)RXEC+

Negative Transmission Data of Pixel 3 (EVEN data)RXE3-

Positive Transmission Data of Pixel 3 (EVEN data)RXE3+

Power GroundGND

*SDA_D (ڡۊۍٻڧڞڟٻۄۉۏۀۍۉڼۇٻېێۀٻۊۉۇ۔ډٻڟۊٻکۊۏٻڞۊۉۉۀھۏۄۊۉڄNC

* SCL_D (ڡۊۍٻڧڞڟٻۄۉۏۀۍۉڼۇٻېێۀٻۊۉۇ۔ډٻڟۊٻکۊۏٻڞۊۉۉۀھۏۄۊۉڄNC

* WPn_D (For LCD internal use only. Do Not Connection)NC

* If the system already uses the 25, 26, 27pins, it should keep under GND level

The voltage applied to those pins should not exceed -200mV.

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Note) Pin number starts from Left side



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PCB



Pin No. 1 Pin No. 30

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#1

( UJU IS100-L30O-C23 or Compatible )

#1

#30

#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.

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5.2 LVDS Interface

5.2.1 Odd Pixel Data (1st pixel data)

1st LVDS Transmitter ( DS90C383, DS90C385 ) Signal Interface

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Device Input

Pin

N

o

Device Input Signal

Red Odd Pixel Data (LSB) RO0TXIN0 51

Red Odd Pixel Data RO1TXIN1 52

Red Odd Pixel Data RO2TXIN2 54

Red Odd Pixel Data RO3TXIN3 55

Red Odd Pixel Data RO4TXIN4 56

Red Odd Pixel Data (MSB) RO7TXIN5 2

Red Odd Pixel Data RO5TXIN6 3

Green Odd Pixel Data (LSB)GO0TXIN7 4

G

reen Odd Pixel Data GO1TXIN8 6

Green Odd Pixel Data GO2TXIN9 7

Output

Signal

TXOUT0-

TXOUT0+

TXOUT3-

TXOUT3+

TXOUT0-

TXOUT0+

TXOUT1-

TXOUT1+

To LTM190EX

Interface ( CN101 )

SymbolTerminalFunctionSymbolSymbol

No. 1
No. 2

No. 10
No. 11

No. 1
No. 2

No. 3
No. 4

RXO0-

RXO0+

RXO3-

RXO3+

RXO0-

RXO0+

RXO1-

RXO1+

Green Odd Pixel Data GO6TXIN108

Green Odd Pixel Data (MSB)GO7TXIN1110

Green Odd Pixel Data GO3TXIN1211

Green Odd Pixel Data GO4TXIN1312

Green Odd Pixel Data GO5TXIN1414

Blue Odd Pixel Data (LSB) BO0TXIN1515

Blue Odd Pixel Data BO6TXIN1616

Blue Odd Pixel Data (MSB) BO7TXIN1718

Blue Odd Pixel Data BO1TXIN1819

Blue Odd Pixel Data BO2TXIN1920

Blue Odd Pixel Data BO3TXIN2022

Blue Odd Pixel Data BO4TXIN2123

Blue Odd Pixel Data BO5TXIN2224

Red Odd Pixel Data RO6TXIN2750

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)

2nd LVDS Transmitter ( DS90C383, DS90C385 ) Signal Interface

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Red Even Pixel Data (LSB) RE0TXIN0 51

Red Even Pixel Data RE1TXIN1 52

Red Even Pixel Data RE2TXIN2 54

Red Even Pixel Data RE3TXIN3 55

Red Even Pixel Data RE4TXIN4 56

Red Even Pixel Data (MSB) RE7TXIN5 2

Red Even Pixel Data RE5TXIN6 3

Green Even Pixel Data (LSB)GE0TXIN7 4

G

Green Even Pixel Data GE2TXIN9 7

Device Input SignalDevice Input Pin

reen Even Pixel Data GE1TXIN8 6

Output

Signal

TXOUT0-

TXOUT0+

TXOUT3-

TXOUT3+

TXOUT0-

TXOUT0+

TXOUT1-

TXOUT1+

To LTM190EX

Interface ( CN101 )

SymbolTerminalFunctionSymbolSymbolNo

No. 12
No. 13

No. 22
No. 23

No. 12
No. 13

No. 15
No. 16

RXE0-

RXE0+

RXE3-

RXE3+

RXE0-

RXE0+

RXE1-

RXE1+

Green Even Pixel Data GE6TXIN108

Green Even Pixel Data (MSB)GE7TXIN1110

Green Even Pixel Data GE3TXIN1211

Green Even Pixel Data GE4TXIN1312

Green Even Pixel Data GE5TXIN1414

Blue Even Pixel Data (LSB) BE0TXIN1515

Blue Even Pixel Data BE6TXIN1616

Blue Even Pixel Data (MSB) BE7TXIN1718

Blue Even Pixel Data BE1TXIN1819

Blue Even Pixel Data BE2TXIN1920

Blue Even Pixel Data BE3TXIN2022

Blue Even Pixel Data BE4TXIN2123

Blue Even Pixel Data BE5TXIN2224

TXOUT3-

TXOUT3+

TXOUT1-

TXOUT1+

TXOUT3-

TXOUT3+

TXOUT1-

TXOUT1+

TXOUT2-

TXOUT2+

No. 22
No. 23

No. 15
No. 16

No. 22
No. 23

No. 15
No. 16

No. 18
No. 19

RXE3-

RXE3+

RXE1-

RXE1+

RXE3-

RXE3+

RXE1-

RXE1+

RXE2-

RXE2+

Red Even Pixel Data RE6TXIN2750

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TXOUT3-

TXOUT3+

No. 22
No. 23

RXE3-

RXE3+

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5.2.3 Timing Diagrams of LVDS For Transmitting

LVDS Receiver : Integrated T-CON

Approval Specification

Approval Specification

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5.3 Back Light Unit

Upper

Lower

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Approval Specification

Approval Specification

FunctionColorInputPin No.

High VoltageREDHot11

GroundWhiteCold12

High VoltageBlueHot23

GroundGrayCold24

High VoltageREDHot11

GroundWhiteCold12

High VoltageBlueHot23

Connector

Part No.

GroundGrayCold24

YEONHO 35001HS-02L or equivalent

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Approval Specification

Approval Specification

5.4 Input Signals, Basic Display Colors and Gray Scale of Each Color

DATA SIGNAL

COLO

R

DISPLAY

(8bit)

G6

G

7

G3

G

5

4

G0R7R6R5R4R3R2R1R0

2

1

G

G

G

BLUEGREENRED

B7B6B5B4B3B2B1B0

GRAY
SCALE
LEVEL

BASIC
COLO

R

GRAY

SCALE

OF

RED

GRAY

SCALE

OF

GREE

N

GRAY

SCALE

OF

BLUE

AN

MAGENT

A

ITE

DA

RK

˦

˨

LIGHT

D

DA

RK

˦

˨

LIGHT

DA

RK

˦

˨

LIGHT

0BLACK

11111111111111100000000CY

111111111111111111WH

:::::::::

00000000000011111111RE

::::::::::

:::::::::::::

:::::::::

::::::::::::::::::

::::::::

::::::::::::::::::

0000001111111100000000GREEN

:::::

::::::::::::::::::

-00000000000000000000000

-111111110000000000000000BLUE

-000000001111111100000000GREEN

-1

-000000000000000011111111RED

-111111110000000011111111

-000000001111111111111111YELLOW

-111111

R0000000000000000000000000BLACK

R1000000000000000000000001

R2000000000000000000000010

R3~

R252

R253000000000000000011111101

R254000000000000000011111110

R2550000

G0000000000000000000000000BLACK

G1000000000000000100000000

G2000000000000001000000000

G3~

G252

G253000000001111110100000000

G254000000001111111000000000

G25500

B0000000000000000000000000BLACK

B1000000010000000000000000

B2000000100000000000000000

B3~

B252

B253111111010000000000000000

B254111111100000000000000000

B255111111110000000000000000BLUE

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

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6. Interface Timing

6.1 Timing Parameters ( DE only mode )

Approval Specification

Approval Specification

Clock

Hsync

Vsync

Vertical

Display Term

Horizontal

Display Term

ITEMSIGNAL

Frequency

Active

Display

Period

Vertical

Total

Active

Display

Period

Horizontal

Total

SYMBO

L

C

H

V

VD

VB

HD

H

NOTEUnitMAX.TYP.MIN.

-MHz68.45444.11/T

-KHz816452.2F

-Hz766049F

-lines-1024-T

-lines-10661031T

clocks640640640T

clocks1130844676T

2pixel/clock

2pixel/clock

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

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6.2 Timing diagrams of interface signal ( DE only mode )

T

V

T

VD

DE

T

H

T

HD

Approval Specification

Approval Specification

T

VB

DE

D

CLK

DATA

SIGNALS

D

CLK

T

C

T

C

T

CH

T

CL

0.5
V

CC

T

DS

T

DH

DISPLAY

DATA

DE

T

ES

0.5
V

CC

0.5
V

CC

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Approval Specification

Approval Specification

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 : VDDrising time from 10% to 90%
T2 : The time from V
T3 : The time from valid data off to V
T4 : V

off time for Windows restart

DD

to valid data at power ON.

DD

off at power Off.

DD

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 V

DD

.

 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 V

= off level,

DD

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.

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6.4 VDD Power Dip Condition

V

DD

90%

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T

d

Approval Specification

Approval Specification

80%

V

CC

GND

4.5V ˺ VDD˺ 5.5V

If V

(typ.) x 80% ˺ VCC˺ VDD(typ) x 90%

DD

Then, 0<Td ˺20msec

Note (1) The above conditions are for the glitch of the input voltage.

(2) For stable operation of an LCD Module power, please follow them.

i.e., if typ VDD x 80% ᆙ Vcc ᆙ typ VDD x 90%, then T

should be less than 20ms.

d

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7. Outline Dimension

[ Refer to the next page ]

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Approval Specification

Approval Specification

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8. Reliability Test

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Approval Specification

Approval Specification

SampleTime/CycleConditionsTest Items

12500 hrs50¶C , BiasHTOL*

8250 hrs0¶C , BiasLTOL*

4500 hrs40¶C / 95% , BiasTHB**

4500 hrs70¶C , No BiasHTS***

4500 hrs-20¶C , No BiasLTS***

8200 cycle-20¶C/30min ~ +60¶C/30min , No biasThermal Cycle

51 angle , 3 edge , 6 side , 66 cmBox Drop

Shock

(Non-operating)

Vibration

(Non-operating)

Non-

Operating

ESD 3· 8kV

Operating

Altitude

50G , 11msec
Sine wave , · x/y/z axis

1.5G , 5~200 Hz
x/y/z axis , sweep rate : 10 min

Contact : 150pF, 330˟˟˟˟, 100point,

once/point

Air(non-contact) : 150pF, 330˟˟˟˟, 100point,

once/point

Thermal :-10~50ଇ, 15000ft(Operating),

40000ft(Non-operating)

Normal :45ଇ, 15000ft

8Hr

10Hr

31 time/axis

330min/axis

3· 10kVCDM : 150pF, 330˟˟˟˟, 9point, 3 times/point

3· 15kV

3

3

[ Result Evaluation Criteria]

Under the display quality test conditions with normal operation state, these should
be no change which may affect practical display functions.

* HTOL/ LTOL : High/Low Temperature Operating Life
** THB : Temperature Humidity Bias
*** HTS/LTS : High/Low Temperature Storage

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9. PACKING

9.1 CARTON (Internal Package)

(1) Packing Form

Corrugated fiberboard box and corrugated cardboard as shock absorber

(2) Packing Method

a. Without Inverter

BOTH SIDED TAPE

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Approval Specification

Approval Specification

BOX LABEL

SHIELDING BAG

PANEL PROTECTOR

TAPE PAPER(4Point)

CUSHION PAD

PACKING CASE

LABEL SAFETY

OPPTAPE

Note a. Total weight : Approx. 14Kg

b. Acceptance number of pilling : 5 Sets

c. Carton size : 401(M) X 365(D) X 477(H)

d. Max accumulation quantity : 5 cartons

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(3) Packing Material

10. MARKING & OTHERS

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Approval Specification

Approval Specification

QualityPart nameNo

5Static electric protective sack1

1 setPacking case(Inner box) included shock absorber2

2 picsPictorial marking3

1 setCarton4

A nameplate bearing followed by is affixed to a shipped product at the specified
location on each product.

(1) Parts number : LTM190EX-L31
(2) Revision: Three letters
(3) Lot number : X X X X XXX

XX X

Cell Position No. (In the Glass)
Glass No. (In the one Lot)
Lot No. (Glass)
Month
Year (Note1)
Product code
Line

(4) Nameplate Indication

Week code : 05 25

/70(;/

[Lot Number] [Revision]

PPID

80mm

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40mm

week
year

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(5) Packing box attach

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40mm

Approval Specification

Approval Specification

LTM190EX-L31

80mm

(6) Others

a. After service part

Lamps cannot be replaced because of the narrow bezel structure.

Part number

Revision code

Box serial number

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11. General Precautions

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Approval Specification

Approval Specification

11.1 Handling

(a) When the module is assembled, it should be attached to the system firmly

using all mounting holes. Be careful not to twist and bend the module.

(b) Because the inverter uses high voltages, it should be disconnected from power

source before it is assembled or disassembled.

(c) Refrain from strong mechanical shock and / or any force to the module.

In addition to damage, it may cause improper operation or damage to the module
and CCFT back light.

(d) Note that polarizer films are very fragile and could be damaged easily.

Do not press or scratch the surface harder than a HB pencil lead.

(e) Wipe off water droplets or oil immediately. If you leave the droplets for a long

time, staining or discoloration may occur.

(f) If the surface of the polarizer is dirty, clean it using absorbent cotton or soft cloth.

(g) 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 cause 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 with soap thoroughly.

(i) Protect the Module from static, or the CMOS Gate Array IC would be damaged.

(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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Approval Specification

Approval Specification

11.2 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୅
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 storing.

11.3 Operation

(a) Do not connect or disconnect the Module in the "Power On" condition.

(b) Power supply should always be turned on/off by the item 6.3

"Power on/off sequence"

(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).

11.4 Operation Condition Guide

(a) The LCD product should be operated under normal conditions.

Normal condition is defined as below;

- Temperature : 20·15୅

- Humidity : 65·20%

- Display pattern : continually changing pattern (Not stationary)

(b) If the product will be used in extreme conditions such as high temperature,

humidity, display patterns or operation time etc.., It is strongly recommended
to contact SEC for Application engineering advice. Otherwise, its reliability and
function may not be guaranteed. Extreme conditions are commonly found at
Airports, Transit Stations, Banks, Stock market, and Controlling systems.

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Approval Specification

Approval Specification

11.5 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. ( supply voltage variation,

input voltage variation, variation in part contents and environmental temperature,
and so on)
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.
To avoid image sticking, it is recommended to use a screen saver.

(e) This Module has its circuitry PCB's on the rear side and should be handled

carefully in order not to be stressed.

(f) Please contact SEC in advance when you display the same pattern for a long time.

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