SAMSUNG LTN140AT20-L02 Specification

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Approval

TO

DATE

SAMSUNG TFT-LCD

: Lenovo

: Jun, 26, 2012

MODEL NO. : LTN140AT20-L02

NOTE : Extension code [ -L02 ]

→ LTN140AT20-L02

- Surface type [ Glare ]

Any Modification of Spec is not allowed without SEC’ permission.

APPROVED BY :

PREPARED BY :

Sukjoo Jung

Application Engineering Group,

Samsung Display Co., Ltd.

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CONTENTS

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

3.1 TFT LCD Module

3.2 LED Driver

4. Block Diagram

4.1 TFT LCD Module

4.2 LED connection and placement

Approval

-------------------( 3 )

-------------------( 4 )

-------------------( 5 )

-------------------( 7 )

-------------------( 10 )

-------------------( 13 )

5. Input Terminal Pin Assignment

-------------------( 14 )

5.1 Input Signal & Power

5.2 LVDS Interface

5.3 Timing Diagrams of LVDS For Transmitting

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

5.5 Pixel format

6. Interface Timing

-------------------( 19 )

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

-------------------( 21 )

-------------------( 23 )

-------------------( 24 )

-------------------( 26 )

11. EDID

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REVISION HISTORY

Date Rev. No. Page

Jun. 05, 2012 A00 All . The approval specification was issued first.

Jun. 26, 2012 A01 10 . Pattern name in current of power supply was modified from “max” to

“vertical stripe” to avoid misunderstanding each other.

Measurement pattern have been vertical stripe from the beginning

and it have not been changed.

Summary

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GENERAL DESCRIPTION

DESCRIPTION

LTN140AT20-L02 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 unit. The resolution of a 14.0" contains
1,366 x 768 pixels and can display up to 262,144 colors. 6 O'clock direction is the Optimum

viewing angle.

FEATURES

• High contrast ratio, high aperture structure

• 1366 x 768 pixels resolution

• Low power consumption

• Fast Response

• LED BLU with LED driver

• DE(Data enable) only mode

• 3.3V LVDS Interface

• Onboard EEDID chip

• Pb-free product

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

Driver element

Display colors

Number of pixel

Pixel arrangement

Pixel pitch

309.399(H) x 173.952(V) (14.0” diagonal ) mm

a-Si TFT active matrix

262,144

1366 x RGB(3) x 768 pixel 16 : 9

RGB vertical stripe

0.2265(H) x 0.2265(V) (TYP.) mm

Display Mode

Surface treatment

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Normally white

Haze 0, Hard-Coating 3H

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Mechanical Information

Item Min. Typ. Max. Unit Note

Horizontal (H) 319.9 320.4 320.9 mm

Module

size

Note (1) Measurement condition of outline dimension

Vertical (V) 186.6 187.1 187.6 mm

Depth (D) - - 3.6 mm (1)

Weight - - 330 g

. Equipment : Vernier Calipers
. Push Force : 150g f (minimum)

1. ABSOLUTE MAXIMUM RATINGS

1.1 ENVIRONMENTAL ABSOLUTE RATINGS

Item Symbol Min. Max. Unit Note

Storage temperate T

STG

Approval

-20 60 qC(1)

Operating temperate

(Temperature of glass surface)

Shock ( non-operating ) Snop -

Vibration (non-operating) Vnop - 2.41 G (4),(5)

Note (1) Temperature and relative humidity range are shown in the figure below.

O

90 % RH Max. ( 39

Maximum wet - bulb temperature at 39
(2) 3ms, half sine wave, one time for ρX,ρY,ρZ.
(3) 18ms, Trapezoidal wave, one time for ൥X,൥Y,൥Z.
(4) 5~500 Hz, Random vibration, 30 min for X,Y,Z.
(5) 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.

C ≥ Ta)

T

OPR

050qC(1)

210

G

50 (3),(5)

O

C or less. (Ta > 39 OC) No condensation.

Relative Humidity ( %RH)

100

90

80

( 39,90 )

(2),(5)

60

40

20

-40 -20 0 20 40 60 80

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Operating Range

Storage Range

5

0

Temperature (

( 50,50.4 )

( 60,27.7 )

O

C)

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1.2 ELECTRICAL ABSOLUTE RATINGS

(1) TFT LCD MODULE

Item Symbol Min. Max. Unit Note

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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)

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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 SR-3

* Ta = 25 r 2 qC, VDD=3.3V, fv= 60Hz, fDCLK = (72.33)MHz, IL = (27) mA

Item Symbol Condition Min. Typ. Max Unit Note

Contrast Ratio

(5 Points)

Response Time at Ta

( Rising + Falling )

Average Luminance
of White (5 Points)

Red

Color

Green

Chromaticity

( CIE )

Blue

White

CR 300 500 - - (1), (2), (5)

RT_B/W - 16 - msec (1), (3)

T

L,AVE

Y

X 0.543 0.573 0.603

R

Y 0.314 0.344 0.374

R

170 200 - cd/m

2

IL=(27)mA

(1), (4)

Normal

X 0.310 0.340 0.370

G

Y 0.532 0.562 0.592

G

X 0.132 0.162 0.192

B

Y 0.089 0.119 0.149

B

X 0.283 0.313 0.343

W

W

Y

Viewing

Angle

I = 0
T = 0

0.299 0.329 0.359

-

(1), (5)

SR-3

Viewing Angle

Color Gamut CG - 45 - %

13 Points

White Variation

5 Points

White Variation

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Hor.

Ver.

L

T

R

T

CR t 10

I

H

L

I

G

L

L

G

-45-

-45­Degrees

-15-

(1), (5)

SR-3

-30-

- - 1.67 - (6)

- - 1.25 - (6)

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Note 1) Definition of Viewing Angle : Viewing angle range( 10

C/R, 100 dC/R )

Normal Line
I = 0

o

,

T = 0

o

T L

T R

TL=90

o

I L

x

I H

y

12 O’clock

direction

IH= 90

6 O’clock

direction

IL= 90

o

x'y'

=90

T

R

Note 2) Definition of Contrast Ratio (CR) : Ratio of gray max (Gmax) ,gray min (Gmin)

at 5 points(4, 5, 7, 9, 10)

Approval

o

o

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%

Note 4) Definition of Average Luminance of White : measure the luminance of white at 5 points.

Time

(25%) ( 50%) (75%)

Average Luminance of White ( Y

L4 + YL5 + YL7 + YL9 + YL10

Y

L,AVE )

10

9

7

YL,AVE =

5

5

4

: test point

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VIEW AREA

(25%)

(50%)

(75%)

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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.
Environment condition : Ta = 25 r 2 qC

Photo-detector

( TOPCON SR-3)

= 2q

Field

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

10mm

10mm

25% 50%

13 12

75%

10

8

5

3

10mm

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4

25%

6

50%

75%

1

: test point

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