0% found this document useful (0 votes)
20 views25 pages

Ltn141xa l02 s6 30pin Lvds

The document is a technical approval for the Samsung LTN141XA-L01 TFT LCD model, detailing specifications, characteristics, and operational parameters. It includes information on maximum ratings, optical and electrical characteristics, and mechanical dimensions. The document is confidential and outlines the LCD's applications and features, such as its resolution and color capabilities.

Uploaded by

ali.he1986
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
0% found this document useful (0 votes)
20 views25 pages

Ltn141xa l02 s6 30pin Lvds

The document is a technical approval for the Samsung LTN141XA-L01 TFT LCD model, detailing specifications, characteristics, and operational parameters. It includes information on maximum ratings, optical and electrical characteristics, and mechanical dimensions. The document is confidential and outlines the LCD's applications and features, such as its resolution and color capabilities.

Uploaded by

ali.he1986
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 25

Approval

TO :
DATE : July. 16. 2003

S A M S U N G T F T- L C D
S A M S U N G T F T- L C D

M
MOOD
DEELL N
NOO..::LLTTN
N114411XXA-
A-L01
L01

Any Modification of Spec is not allowed without SEC’ permission

APPROVED BY :

PREPARED BY : Application Engineering Group

SAMSUNG ELECTRONICS CO., LTD.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 1 / 24
Approval

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 Backlight Unit

4. Block Diagram - - - - - - - - - - - - - - - - - - - ( 14 )
4.1 TFT LCD Module
4.2 Backlight Unit

5. Input Terminal Pin Assignment - - - - - - - - - - - - - - - - - - - ( 15 )


5.1 Input Signal & Power
5.2 LVDS Interface
5.3 Backlight Unit
5.4 Timing Diagrams of LVDS For Transmitting
5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color.
5.6 Pixel format

6. Interface Timing - - - - - - - - - - - - - - - - - - - ( 20 )
6.1 Timing Parameters(DE Mode)
6.2 Timing Diagrams of interface Signal (DE Mode)
6.3 Power ON/OFF Sequence

7. Outline Dimension - - - - - - - - - - - - - - - - - - - ( 22 )

8.General Precautions - - - - - - - - - - - - - - - - - - - ( 23 )

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 2 / 24
REVISION Approval
REVISIONHISTORY
HISTORY

Date Rev.No. Page Summary

July.16, 2003 000 All LTN141XA-L01 model was First issued.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 3 / 24
Approval
GENERAL DESCRIPTION
DESCRIPTION
LTN141XA-L01 is a color active matrix TFT (Thin Film Transistor) liquid crystal display
(LCD) that uses amorphous silicon TFT as a switching devices. This model is composed of
a TFT LCD panel, a driver circuit and a backlight system. The resolution of a 14.1" contains
1,024 x 768 pixels and can display up to 262,144 colors. 6 O'clock direction is the Optimum
viewing angle.

FEATURES
• Thin and light weight
• High contrast ratio
• XGA ((1024x768) pixels) resolution
• Low power consumption
• DE (Data enable) only mode.
• 3.3V LVDS (FPD Link) Interface with 1 pixel / clock
• Auto-Recovery Function
• SPWG Style-B

APPLICATIONS
• Notebook PC and desktop monitors
• Display terminals for AV application products
• Monitors for Industrial machine
• If the usage of this product is not for PC application, but for others, please contact SEC

GENERAL INFORMATION

ITEM SPECIFICATION UNIT NOTE

Display area 285.696(H)X214.272(V) (14.1”diagonal) mm


Driver element a-si TFT active matrix

Display colors 262,144

Number of pixel 1024 x 768 pixel

Pixel arrangement RGB vertical stripe mm

Pixel pitch 0.279(H) x 0.279(V)

Display Mode Normally white

Surface treatment HAZE 40, HARD-COATING 2H, ARC150T

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 4 / 24
Approval
Mechanical Information

ITEM MIN. TYP. MAX. NOTE

Horizontal (H) 298.5 299.0 299.5


Module Vertical (V) 227.5 228.0 228.5
size
Depth (D) - - 5.5

Weight 400g 415g

1. ABSOLUTE MAXIMUM RATINGS


1.1 ENVIRONMENTAL ABSOLUTE RATINGS

ITEM SYMBOL MIN. MAX. UNIT NOTE

Storage temperate TSTG -25 60 OC (1)

Operating temperate OC (1)


TOPR 0 50
(Temperature of glass surface)

Shock ( non-operating ) Snop - 210 G (2), (4)

Vibration (non-operating) Vnop - 1. 5 G (3), (4)

Note (1) Temperature and relative humidity range are shown in the figure below.
95 % RH Max. ( 40 OC Ta)
Maximum wet - bulb temperature at 39 O C or less. (Ta > 40 OC) No condensation.
(2) 3ms, half sine wave, one time for X, Y, Z.
(3) 10 300 10 Hz, Sweep rate 10 min, 30 min for X,Y,Z.
(4) At testing Vibration and Shock, the fixture in holding the Module to be tested have to be
hard and rigid enough so that the Module would not be twisted or bent by the fixture.

Relative Humidity ( %RH)


100
95

80

60
Operating Range
40

20
8
5 Storage Range
0
-40 -20 0 20 40 60 80

Temperature (OC)
SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 5 / 24
Approval
1.2 ELECTRICAL ABSOLUTE RATINGS

(1) TFT LCD MODULE ( Vss = GND = 0 V)

ITEM SYMBOL MIN. MAX. UNIT NOTE

Power Supply Voltage Vcc Vss-0.3 (Vcc + 0.3) V (1)

Logic Input Voltage VIN Vss-0.3 (Vcc + 0.3) V (1)

NOTE (1) Within Ta ( 25 2 OC )

(2) BACK-LIGHT UNIT Ta = 25 2 OC

ITEM SYMBOL MIN. MAX. UNIT. NOTE

Lamp current IL 3.0 7.0 mArms (1)

Lamp frequency FL 50 80 KHz (1)

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.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 6 / 24
Approval
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 (5).
Measuring equipment : TOPCON BM-5A

* Ta = 25 2oC , Vcc=3.3V, fv= 60Hz, fDCLK=65MHz, IL= 6.0mA

ITEM SYMBOL CONDITION MIN. TYP. MAX. UNIT NOTE

Contrast Ratio - 200 -


CR
(5 Points)
Response Rising TR - 10 20
Time at 25 msec (1), (3)
Falling TF - 30 50

Luminance
YL 120 150 - cd/m2 (1), (4)
of White (Center)
φ = 0,
RX θ= 0 0.560 0.590 0.620
Red
RY Normal 0.312 0.342 0.372
Viewing
GX Angle 0.289 0.319 0.349
Green
Color (1), (5)
GY 0.510 0.540 0.570
Chromaticity
( CIE ) BX 0.122 0.152 0.182
Blue
BY 0.107 0.137 0.167

WX
0.285 0.313 0.341
White
WY
0.309 0.329 0.349

θ L
- 45 -
Hor.
Viewing θ R CR 10 - 45 -
(at center point)
Angle Degrees
φ H
-
- 15
Ver.
φ L - 30 -

13 Points (6)
White Variation % 65 - -

5 Points (7)
% 80 - -
White Variation

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 7 / 24
Approval

Note 1) Definition of Viewing Angle : Viewing angle range (10 C/Rat center point )
Normal Line
φ = 0o, θ = 0o

θL
θR
φH
φL 12 o clock
θ L =90o direction
φ H = 90o

6 o clock
direction
θR =90o
φ L= 90 o

Note 2) Definition of Contrast Ratio (CR) : Ratio of gray max (Gmax) ,gray min (Gmin)
at 5 points(1, 3, 5, 7, 9)

CR(1) + CR(3) + CR(5) + CR(7) + CR(9)


CR =
5

POINTS : 1 , 3 , 5 , 7 , 9 at FIGURE OF NOTE 6)

Note 3) Definition of Response time : Sum of TR ,TF

Display data White(TFT OFF) Black(TFT ON) White(TFT OFF)

TR TF
100%
Optical
90%
Response

10%
0%

Time

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 8 / 24
Approval

Note 4) Definition of Luminance of White : measure the luminance of white at center points.

(256) (512) (768)

Luminance of White ( Y L )
VIEW AREA
Measuring Lamp Current is 6.0mA
(192)

Y L = YL5 5 (384)

(576)
(lines)

Note 5) 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.
Lamp current : 6.0mArms
Environment condition : Ta = 25o C 2 o C

Photo-detector
( TOPCON BM-5A)

Field = 2o
BM-5A: 40 cm
BM-7 : 50 cm

TFT-LCD module LCD panel

center of the screen

Optical characteristics measurement setup

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 9 / 24
Approval

Note 6) Definition of 13 points white variation, CR variation( CVER ) [ 1 ~ 13 ]

Minimum luminance of 13 points


13 points (%) = X 100
white variation Maximum luminance of 13 points

10mm 10mm

76mm 143mm 209mm


VIEW AREA
10mm
13 12 11 45mm

10 9 59mm

8 7 6 107mm : test point

5 4 156mm

3 2 1
10mm

Note 7) Definition of 5 points white variation, CR variation( CVER ) [ 4,5,7,9,10 ]

Minimum luminance of 5 points


5 points (%) = X 100
white variation Maximum luminance of 5 points

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 10 / 24
3. ELECTRICAL CHARACTERISTICS Approval

3.1 TFT LCD MODULE Ta=25 ± 2 ºC

ITEM SYMBOL MIN TYP MAX UNIT NOTE

Voltage of Power Supply VDD 3.0 3.3 3.6 V

Differential Input High VIH - - +100 mV


Voltage for LVDS VCM=+1.2V
Receiver Threshold Low VIL -100 - - mV

Vsync Frequency fv - 60 - Hz

Hsync Frequency fH - 48.2 - KHz

Main Frequency fDCLK 63.4 65 66.6 MHz

Rush Current IRUSH - - 1.5 A (4)

White - 330 - mA (2),(3)*a

Mosaic IDD - 360 - mA (2),(3)*b


Current of
Power Supply Max - 420 500 mA (2),(3)*c
Pattern

Note (1) Display data pins and timing signal pins should be connected.(GND=0V)
(2) fV=60Hz, fDCLK =65MHZ, Vdd = 3.3V , DC Current.
(3) Power dissipation pattern

*a) White Pattern *b) Mosaic Pattern

VIEW AREA

Display Brightest Gray Level

Display Darkest Gray Level

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 11 / 24
Approval

*c) 1dot Inversion Pattern

R B G R B G R

G R B G R B G

R B G R B G R

G R B G R B G

4) Rush current measurement condition

3.3V M1
2SK1059
VDD ( LCD INPUT)
FUSE
R1 C1
47K 1uF

R2
CONTROL SIGNAL M2
(HIGH to LOW) 2SK1399
1K

12V
R3 C2

C3 47K
10000pF
1uF

VDD rising time is 470us


3.3V
0.9VDD

0.1VDD
GND
470us

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 12 / 24
3.2 BACK-LIGHT UNIT Approval
The backlight system is an edge - lighting type with a single CCFT ( Cold Cathode Fluorescent Tube ).
The characteristics of a single lamp are shown in the following tables.
INVERTER : SEM, SIC130T
Ta=25 ± 2 o C

ITEM SYMB MIN TYP MAX UNIT NOTE

Lamp Current IL 3.0 6.0 6.5 mArms (1)

Lamp Voltage VL 690 Vrms IL=6.0mA

Frequency fL 50 60 65 KHz (2)

Power Consumption PL - 4.0 - W (3)

Operating Life Time Hr 10,000 - - Hour (4)

1250 (25°C )
Startup Voltage VS - - Vrms (5)
1500 (0 °C )

N o t e) 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 backlight, 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 backlight 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 a high frequency current meter as shown below.
HOT : (Pink)
1
LCD COLD : (WHITE)
MODULE INVERTER
2 A

SEM SIC130T

SIC Inverter Switching Frequency :Typ 60KHz


(2) Lamp frequency may produce interference with horizontal synchronous frequency and this
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) refer to IL X VL to calculate.

(4) Life time (Hr) of a lamp can be defined as the time in which it continues to operate under the
condition Ta = 25 ±2 oC and IL = 6.0 mArms until one of the following event occurs.
1. When the brightness becomes 50% or lower than the original.

(5) The voltage above this value should be applied to the lamp for more than 1 second to startup
Otherwise the lamp may not be turned on.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 13 / 24
Approval
4. BLOCK DIAGRAM
4.1 TFT LCD Module

LVDS
RSDS
LVDS Input/RSDS Output
Input Connector
Timing Controller
Source
Driver
IC 14.1” XGA
TFT-LCD Panel
DC-DC Gamma
Converter Generator

VCOM
Video Signal Generator
Control Signal
VCOM
Gamma
DVDD SOURCE PCB
AVDD Gate Driver IC
Von/Voff

4.2 BACK-LIGHT UNIT

Reflector
1 HOT (Pink)
LAMP

2 COLD(White)

Connector : BHSR-02VS-1

Note) The output of the inverter may change according to the material of the reflector.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 14 / 24
Approval
5. INPUT TERMINAL PIN ASSIGNMENT
5.1. Input Signal & Power LVDS, Connector : JAE, FI-XB30SRL-HF10 or Compatible
Mating Connector : JAE, FI-X30M or Compatible

Symbol Full Description Remarks


1 GND Ground
2 VDD Power (Vdd = 3.3V)
3 VDD Power (Vdd = 3.3V)
4 VEDID DDC 3.3V Power N/A
5 NC Not Connected
6 CLK EDID DDC CLOCK N/A
7 DATA EDID DDC DATA N/A
8 RXIN0- LVDS Oth Signal Negative
9 RXIN0+ LVDS Oth Signal Positive
10 GND Ground
11 RXIN1- LVDS 1st Signal Negative
12 RXIN1+ LVDS 1st Signal Positive
13 GND Ground
14 RXIN2- LVDS 2nd Signal Negative
15 RXIN2+ LVDS 2nd Signal Positive
16 GND Ground
17 RXCLKIN- LVDS Clock Signal Negative
18 RXCLKIN+ LVDS Clock Signal Positive
19 GND Ground
20 NC Not Connected
21 NC Not Connected
22 NC Not Connected
23 NC Not Connected
24 NC Not Connected
25 NC Not Connected
26 NC Not Connected
27 NC Not Connected
28 NC Not Connected
29 NC Not Connected
30 NC Not Connected

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 15 / 24
Approval

5.2 LVDS Transmitter : DS90CF383 (National Semiconductor) or Compatible

Pin No. Name RGB Signal Pin No. Name RGB Signal

51 TxIN0 R0 14 TxIN14 G5

52 TxIN1 R1 15 TxIN15 B0

54 TxIN2 R2 19 TxIN18 B1

55 TxIN3 R3 20 TxIN19 B2

56 TxIN4 R4 22 TxIN20 B3

3 TxIN6 R5 23 TxIN21 B4

4 TxIN7 G0 24 TxIN22 B5

6 TxIN8 G1 27 TxIN24 Hsync

7 TxIN9 G2 28 TxIN25 Vsync

11 TxIN12 G3 30 TxIN26 DE

12 TxIN13 G4 31 TxCLKIN Clock

FLAT LINK INTERFACE


JAE FI-XB30SRL-HF10

Graphics controller SiI215


18-bit RED0 51 3
48
RED1 52 TxOUT0- 5 RxIN0-
RED2 54 47 100 Ω
TxOUT0+ 6 4 RxIN0+
RED3 55
RED4 56
RED5 3 46 5
GREEN0 4 TxOUT1- 8 RxIN1-
GREEN1 6 45 100 Ω
GREEN2 7 TxOUT1+ 9 6 RxIN1+
GREEN3 11
GREEN4 12
42 7
GREEN5 14 TxOUT2- 11
RxIN2-
BLUE0 15 41
TxOUT2+ 12 100 Ω
BLUE1 19 8
BLUE2 20 RxIN2+
BLUE3 22 40
BLUE4 23 TxCLKOUT- 14 9
BLUE5 24 39 RxCLKIN-
Hsync 27 TxCLKOUT+ 15 100 Ω
Vsync 28 10
RxCLKIN+
Enable 30
CLOCK 31

Note : The LCD Module uses a 100ohm resistor between positive and negative lines of each receiver input.
SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 16 / 24
Approval

5.3 BACK LIGHT UNIT


Connector : JST, BHSR-02VS–1 or compatible

Pin NO. Symbol Color Function


1 HOT Pink High Voltage

2 COLD White Ground

5.4 Timing Diagrams of LVDS For Transmission

T
TxCLK OUT
RxCLK IN

T/7

Rx IN2 RxOUT26 RxOUT25 RxOUT24 RxOUT22 RxOUT21 RxOUT20 RxOUT19

DE Vsync Hsync B5 B4 B3 B2

T/7

Rx IN1 RxOUT18 RxOUT15 RxOUT14 RxOUT13 RxOUT12 RxOUT9 RxOUT8

B1 B0 G5 G4 G3 G2 G1

T/7

RxOUT7 RxOUT6 RxOUT4 RxOUT3 RxOUT2 RxOUT1 RxOUT0

G0 R5 R4 R3 R2 R1 R0

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 17 / 24
5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color Approval

DATA SIGNAL GRAY


COLOR DISPLAY RED GREEN BLUE SCALE
R0 R1 R2 R3 R4 R5 G0 G1 G2 G3 G4 G5 B0 B1 B2 B3 B4 B5 LEVEL

BLACK 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 1 1 1 1 1 1 -

GREEN 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 -

CYAN 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 -
COLOR
RED 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 -
MAGENTA 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 -
YELLOW 1 1 1 1 1 1 1 1 1 1 1 1 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 -
BLACK 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 R1
DARK
GRAY 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R2

SCALE : : : : : : : : : : : : : : : : : :
R3~R60
OF : : : : : : : : : : : : : : : : : :

RED 1 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 R61
LIGHT 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 R62
RED 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 R63
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G0
DARK 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 G1
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 G2
GRAY
: : : : : : : : : : : : : : : : : :
SCALE G3~G60
: : : : : : : : : : : : : : : : : :
OF
0 0 0 0 0 0 1 0 1 1 1 1 0 0 0 0 0 0 G61
GREEN
LIGHT
0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 G62
GREEN 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 G63
BLACK 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 1 0 0 0 0 0 B1
GRAY
DARK
0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 B2
SCALE
: : : : : : : : : : : : : : : : : :
OF B3~B60
: : : : : : : : : : : : : : : : : :
BLUE
0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 B61
LIGHT
0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 B62
GREEN 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 B63

Note 1) Definition of gray :


Rn: Red gray, Gn: Green gray, Bn: Blue gray (n=gray level)
Note 2)Input signal: 0 =Low level voltage, 1=High level voltage
SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 18 / 24
Approval
5.6 Pixel Format in the display

0 1023

Line 0 R G B R G B R G B R G B

LTN141XA-L01 Panel

Line 767 R G B R G B R G B R G B

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 19 / 24
6. INTERFACE TIMING Approval

6.1 Timing Parameters

Signal Item Symbol MIN TYP MAX Unit Note

Frame Frequency Cycle TV - 806 - lines

Vertical Active
Display Period TV D - 768 - lines
Display Term

One Line
Cycle TH - 1344 - clocks
Scanning Time

Horizontal Active Display Period THD - 1024 - clocks


Display Term

Vertical Blank
Cycle Vblank - 38 - lines
Term

Horizontal Blank
Cycle Hblank - 320 - clocks
Term

6.2 Timing diagrams of interface signal

TV

TVD

DE

TH

DCLK
TC
THD

DE

DATA Valid display data ( 1024 pixel)


SIGNALS

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 20 / 24
Approval
6.3 Power ON/OFF Sequence

: To prevent a latch-up or DC operation of the LCD module, the power on/off sequence
shall be as shown below.
Power Supply 0.9 VDD 0.9 VDD
VDD 0.1 VDD
0.1 VDD
0V

0 < T1 ≤ 10 msec T1
0 < T2 ≤ 50 msec T3
0 < T3 ≤ 50 msec T2 T4
400ms ≤ T4
Signals VALID
0V

Power On Power Off

Back-light
200 msec ≤ T5 50% 50%
200 msec ≤ T6

T5 T6

Power ON/OFF Sequence

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.

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 backlight turns on
before the LCD operation or the LCD turns off before the backlight turns off, the
display may momentarily become white.

(3) In case of V DD = 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.
SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 21 / 24
7. Mechanical Outline Dimension Approval
[ Refer to the section 5.9 ]

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 22 / 24
Approval
8. GENERAL PRECAUTIONS

1. Handling

(a) When the module is assembled, It should be attached to the system firmly
using selected 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 backlight.

(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(Isoprophyl 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 C-MOS Gate Array IC.

(i) Use fingerstalls 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) Protection film for polarizer on the module shall be slowly peeled off just before use so
that the electrostatic charge can be minimized.

(n) Pins of I/F connector shall not be touched directly with bare hands.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 23 / 24
Approval
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.

3. OPERATION

(a) Do not connect,disconnect the module in the “ Power On” condition.

(b) Power supply should always be turned on/off by following item 6.3
“ 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 backlight connector and its inverter power supply shall be a
minimized length and be connected directly . The longer cable between the backlight
and the inverter may cause lower luminance of lamp(CCFT) and may require higher
startup voltage(Vs).

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.

SEC Confidential
Doc.No. LTN141XA-L01 Rev.No 04-001-G-030716 Page 24 / 24

You might also like