SAMSUNG LTN140AT22-P01 Specification

TO
DATE :: Oct. 14, 2011

SAMSUNG TFT-LCD

MODEL NO. : LTN140AT22-P

Approval

NOTE : Extension code [ -P]

→ LTN140AT22- P

Surface type [ Glare ]

Any modification of Spec is not allowed without Samsung’s permission

The information described in this SPEC is preliminary and can be changed without prior notice.

Application Engineering Group

Samsung Display Co., Ltd.

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CONTENTS

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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 Backlight Unit

3.3 LED Driver

4. Block Diagram

4.1 TFT LCD Module

5. Input Terminal Pin Assignment

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

5.6 LED Driver Connector & Pin Assignment

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

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

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

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

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

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

- - - - - - - - - - - - - - - - - - - ( 28 )

- - - - - - - - - - - - - - - - - - - ( 31 )

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REVISION HISTORY

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Date

Aug. 17. 2011 A00 All The specification of LTN140AT22-P model was issued first.
Aug, 23, 2011 A01 P12,14 Modified Errata
Aug, 30, 2011 A02 P12 Added BACK-LIGHT UNIT Power Consumption Value.

Oct. 06, 2011 A03

Oct. 14, 2011 A04 All Product revision code was updated as P** to P**

Revision

No.

Page

P10, 12

P28

Summary

Updated Logic and Back Light Power consumption
Updated General Precautions comment

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GENERAL DESCRIPTION

DESCRIPTION

LTN140AT22 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. The resolution of a 14.0" contains
1366 x 768 pixels and can display up to 262,144 colors. 6 O'clock direction is the optimum

viewing angle.

FEATURES

• High contrast ratio

• HD (1366 x 768 pixels ) resolution

• Low power consumption

• Fast response time

• LED Back Light with embedded LED Driver

• DE (Data enable) only mode

• 3.3V LVDS Interface

• Onboard EEDID chip

• Green product (RoHS compliant)

APPLICATIONS

• Notebook PC

• If the usage of this product is not for PC application, but for others, please contact Samsung

GENERAL INFORMATION

Item Specification Unit Note

Display area
Driver element
Display colors
Number of pixel
Pixel arrangement
Pixel pitch
Display Mode

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

a-Si TFT active matrix

262,144

1366 x 768 pixel 16:9

RGB vertical stripe

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

Normally white

Surface treatment

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Haze 0, Hard-Coating 3H

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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) 191.5 192.0 192.5 mm

Depth (D) - - 5.2 mm (1)

Weight - 330 350 g

. Equipment : Bernier Calipers
. Push Force : 500g f (minimum)

1. ABSOLUTE MAXIMUM RATINGS

1.1 ENVIRONMENTAL ABSOLUTE RATINGS

Item Symbol Min. Max. Unit Note

Storage temperate TSTG -20 60 C (1)

Approval

Operating temperate

(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 C  Ta)
Maximum wet - bulb temperature at 39 OC or less. (Ta  40 C ) No condensation

100

90

80

60

40

20

TOPR 0 50 C (1)

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 (OC)

(2) 2ms, half sine wave, one time for X, Y,  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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1.2 ELECTRICAL ABSOLUTE RATINGS
(1) TFT LCD MODULE

Item Symbol Min. Max. Unit Note

Power Supply Voltage VDD VDD - 0.3 VDD + 0.3 V (1)

Logic Input Voltage VIN VDD - 0.3 VDD + 0.3 V (1)

Note (1) Within Ta (25  2 C )

(2) BACK-LIGHT UNIT

Item Symbol Min. Typ. Max. Unit Note

Approval

VDD =3.3V, VSS = GND = 0V

Ta = 25  2 C , Duty = 100%

LED Current I
LED Voltage F

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.

L

L

- 25 - mA (1)

3.0 3.2 3.4 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  2 C, VDD=3.3V, fv= 60Hz, fDCLK = 78.05MHz, IF = 25 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

Chromaticity

( CIE )

Green

Blue

White

CR

TRT - 16 25 msec (1), (3)

YL,AVE 190 220 - cd/m

RX
RY 0.355
GX 0.350
GY 0.580
BX 0.165

BY 0.125
WX 0.313
WY 0.329

Normal

Viewing

Angle

 = 0
 = 0

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

IF=25mA

2

(1), (4)

0.585

-0.03

+0.03 -

(1), (5)

SR-3

Color Gamut 45 - %

L

Hor.

Viewing

Angle

13 Points

White Variation

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H

H

L

L

CR  10

At center

Doc.No. Rev.No

40 - ­40 - ­15 - ­30 - -

- - 1.7 - (6)

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Degrees (1), (5)

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Note 1) Definition of Viewing Angle : Viewing angle range(10  C/R)

Normal Line
 = 0

o

,

 = 0

o

 L

 R

 L

L

=90

o

x



 H

Approval

12 O’clock

direction

y



H

= 90

o

6 O’clock

direction

o



= 90

L

x'y'



=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) White(TFT OFF)

TR

Black(TFT ON)

TF

100%

90%

Optical
Response

10%

0%

o

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

25% 50% 75%

Average Luminance of White ( YL,AVE )

YL4 + YL5 + YL7 + YL9 + YL10

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 : 25 mA
Environment condition : Ta = 25  2 C

Photo-detector

( TOPCON SR-3 )

Field = 2

50 cm

TFT-LCD module

Center of the screen

[ Optical characteristics measurement setup ]

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

Maximum luminance of 13 points

LCD panel

1 13

 L =

Minimum luminance of 13 points

10mm

11

25%

10mm

10mm

25% 50%

13 12

10

75%

9

8

5

3

10mm

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50%

75%

1

: test point

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3. ELECTRICAL CHARACTERISTICS

3.1 TFT LCD MODULE

Item Symbol Min. Typ. Max. Unit Note

Voltage of Power Supply VDD 3.0 3.3 3.6 V

Approval

Ta= 25  2C

Differential Input

Voltage for LVDS

Receiver Threshold

Vsync Frequency fv - 60 - Hz

Main Frequency fDCLK - 78.05 85 MHz

Rush Current IRUSH - - 1.5 A (4)

Current of Power

Supply

Note (1) Display data pins and timing signal pins should be connected.( GND = 0V )

(2) fV = 60Hz, fDCLK = 78.05MHZ, VDD = 3.3V , DC Current.
(3) Power dissipation pattern

*a) White Pattern *b) Mosaic Pattern

VIEW AREA

High VIH - - +100 mV VCM = +1.2V

Low VIL -100 - - mV

White

Mosaic - 210 240 mA (2),(3)*b

Black - 210 240 mA (2),(3)*c

IDD

- 210 240 mA (2),(3)*a

*c) Black Pattern

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Display Brightest Gray Level

Display Darkest Gray Level

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