SAMSUNG LTN140AT21-W01 Specification
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W
MODEL NO. : LTN140AT21-
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SAMSUNG TFT-LCD
NOTE : Extension code [ -Wxx ]
→ LTN140AT21-Wxx
Surface type [ Anti-Glare ]
Any modification of Spec is not allowed without SEC’s permission
Application engineering part, Mobile Division
Samsung Electronics Co., Ltd.
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3.1 TFT LCD Module
-
CONTENTS
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Approval
Revision History
General Description
1. Absolute Maximum Ratings
1.1 Absolute Ratings of environment
1.2 Electrical Absolute Ratings
2. Optical Characteristics
3. Electrical Characteristics
3.2 Backlight Unit
3.3 LED Driver
4. Block Diagram
4.1 TFT LCD Module
4.2 LED Placement Structure
5. Input Terminal Pin Assignment
5.1 Input Signal & Power
5.2 LVDS Interface
5.3 Timing Diagrams of LVDS For Transmitting
5.4 Pixel format
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-------------------( 4 )
-----------( 3 )
-------------------( 5 )
-------------------( 7 )
-------------------( 10 )
-------------------( 13 )
-------------------( 14 )
6. Interface Timing
6.1 Timing Parameters
6.2 Timing Diagrams of interface Signal
6.3 Power ON/OFF Sequence
7. Outline Dimension
8. Packing
9. Markings & Others
10. General Precautions
11. EDID
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REVISION HISTORY
Approval
Date Revision No. Page
Oct. 11.
A00 All The approval specification of 14.0” SMS HD was issued first.
Summary
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The resolution of a 14.0” contains 1366 x 768 pixels and can display up to
colors.
mm
LED Back Light with embedded LED Driver
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GENERAL DESCRIPTION
DESCRIPTION
LTN140AT21 is a color active matrix TFT (Thin Film Transistor) liquid crystal display
(LCD) that uses amorphous silicon TFT as switching devices.
This model is composed of a TFT LCD panel, a driver circuit and a backlight unit.
6 O'clock direction is the optimum viewing angle.
FEATURES
• High contrast ratio
• HD(1366 x 768 pixels ) resolution
• Fast Response
•
• DE (Data enable) only mode
• 3.3V LVDS Interface
• Onboard EEDID chip
Approval
262,144
• APS(Advanced Power Saving)
APPLICATIONS
• Notebook PC
• 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 309.399 (H) x 173.952 (V) (14.0”diagonal)
Driver element
Display colors
Number of pixel
Pixel arrangement
a-Si TFT active matrix
1366 * 768 pixel 16:9
RGB vertical stripe
Pixel pitch 0.2265(H) x 0.2265(V)
Display Mode
Surface treatment Haze 25%, Hardness 3H
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Normally white
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A/G
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Operating temperate
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Mechanical Information
Item Min. Typ. Max. Unit Note
Horizontal (H) 323.0 323.5 324.0 mm
Module
size
Note (1) Measurement condition of outline dimension
Vertical (V) 191.4 191.9 192.4 mm
Depth (D) - - 4.0 mm PCB Area
Weight - - 355 g
. Equipment : Bernier Calipers
. Push Force : 500g f (minimum)
1. ABSOLUTE MAXIMUM RATINGS
1.1 ENVIRONMENTAL ABSOLUTE RATINGS
Item Symbol Min. Max. Unit Note
Approval
Storage temperate TSTG -20 60 qC(1)
(Temperature of glass surface)
Shock ( non-operating ) Snop - 240 G (2),(4)
Vibration (non-operating) Vnop - 2.41 G (3),(4)
Note (1) Temperature and relative humidity range are shown in the figure below.
95 % RH Max. (40 qC t Ta)
Maximum wet - bulb temperature at 39
100
90
80
60
40
20
TOPR 0 50 qC(1)
O
C or less. (Ta ! 40 qC ) No condensation
Relative Humidity ( %RH)
( 40,90 )
Operating Range
( 50,50.4 )
( 60,27.7 )
Storage Range
5
0
-40 -20 0 20 40 60 80
Temperature (
O
C)
(2) 2ms, half sine wave, one time for rX, rY, r Z.
(3) 5 - 500 Hz, random vibration, 30min 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.
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Functional operation should be restricted to the conditions described under normal operating conditions.
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1.2 ELECTRICAL ABSOLUTE RATINGS
(1) TFT LCD MODULE
Item Symbol Min. Max. Unit Note
Approval
DD =3.3V, VSS = GND = 0V
V
Power Supply Voltage V
Logic Input Voltage V
Note (1) Within Ta (25 r 2 qC)
DD VDD - 0.3 VDD + 0.3 V (1)
IN VDD - 0.3 VDD + 0.3 V (1)
(2) BACK-LIGHT UNIT
Ta = 25 r 2 qC
Item Symbol Min. Typ. Max. Unit Note
LED Current I
LED Voltage VL - 3.2 - V (1)
Note 1) Permanent damage to the device may occur if maximum values are exceeded
L -22-
mArm
s
(1)
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should be measured in a dark room or equivalent state with the methods shown in Note (5).
Contrast Ratio
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2. OPTICAL CHARACTERISTICS
The following items are measured under stable conditions. The optical characteristics
Measuring equipment : TOPCON SR-3
* Ta = 25 r2 qC, VDD=3.3V, fv= 60Hz, fDCLK = 70.7MHz, IF = 100% duty
Item Symbol Condition Min. Typ. Max Unit Note
(5 Points)
Response Time at Ta
( Rising + Falling )
Average Luminance
of White (5 Points)
Color
Chromaticity
( CIE )
Red
Green
Blue
White
CR
T
RT - 16 25 msec (1), (3)
300 - - - (1), (2), (5)
IF=100%
Y
L,AVE 200 220 - cd/m
2
Normal
X
R
Viewing
0.565
Angle
R
Y 0.350
X 0.340
G
G
Y 0.565
X 0.155
B
B
Y 0.120
X 0.313
W
W
Y 0.329
I = 0
T = 0
Typ-
0.03
Typ
+0.03
-
duty
(1), (4)
(1), (5)
SR-3
L
T
40 - -
Hor.
Viewing
Angle
Ver.
H
T
H
I
L
I
CR t 10
At center
40 - -
15 - -
30 - -
Degrees
Color Gamut CG - 45 - %
13 Points
White Variation
L
G
- - 2.0 - (6)
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d
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Note 1) Definition of Viewing Angle : Viewing angle range(10
Normal Line
I = 0
T L
I L
TL=90
o
x
I H
o
,
T = 0
o
C/R)
T R
Approval
12 O’clock
y
direction
IH= 90
o
6 O’clock
direction
o
IL= 90
x'y'
T
=90
R
Note 2) Definition of Contrast Ratio (CR) : Ratio of gray max (Gmax) ,gray min (Gmin)
at 5 points(4, 5, 7, 9, 10)
CR(4) + CR(5) + CR(7) + CR(9) + CR(10)
CR =
5
Points : , , , , at the figure of Note (6).
4 9
5
7
10
Note 3) Definition of Response time :
Display data
White(TFT OFF)
TR
Black(TFT ON)
White(TFT OFF)
TF
100%
90%
Optical
Response
10%
0%
o
Note 4) Definition of Average Luminance of W hite : measure the luminance of white at 5 points.
25% 50% 75%
Average Luminance of White ( Y
Y
L4 + YL5 + YL7 + YL9 + YL10
L,AVE )
10
9
7
YL,AVE =
5
5
4
: test point
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VIEW AREA
25%
50%
75%
(lines)
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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 backlight. This should be measured in the center of screen.
IF current : 22mA
Environment condition : Ta = 25 r 2 qC
Photo-detector
( TOPCON SR-3 )
Field
= 2q
50 cm
TFT-LCD module
Center of the screen
[ Optical characteristics measurement setup ]
Note 6) Definition of 13 points white variation (G L ), CR variation( CVER ) [ ~ ]
Maximum luminance of 13 points
LCD panel
113
G L =
Minimum luminance of 13 points
10mm
11
25%
10mm
10mm
13 12
25% 50% 75%
10
9
8
5
3
10mm
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50%
75%
(lines)
1
: test point
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Max.
DCLK
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3. ELECTRICAL CHARACTERISTICS
Approval
3.1 TFT LCD MODULE
Item Symbol Min. Typ.
Voltage of Power Supply V
Differential Input
Voltage for LVDS
Receiver Threshold
Vsync Frequency fv - 60 - Hz
Main Frequency f
Rush Current I
Current of Power
Supply
High V
Low VIL -100 - - mV
White
Mosaic - 200 250 mA
V.stripe - 300 350 mA
Unit Note
DD 3.0 3.3 3.6 V
IH --+100mVVCM = +1.2V
67.39 70.7 105.84 MHz -
RUSH - - 1.5 A (4)
- 200 - mA
IDD
Ta= 25 r 2qC
*a),b),c)
Note (1) Display data pins and timing signal pins should be connected.( GND = 0V )
(2) f
V = 60Hz, fDCLK = 70.7MHZ, 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
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