Samsung LTN-140AT20-D Datasheet

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TO

DATE

SAMSUNG TFT-LCD

: Dell / Quanta

: June. 20, 2011

MODEL NO. : LTN140AT20-D

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- Surface type [ Glare ]

→ LTN140AT20-D

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

APPROVED BY :

PREPARED BY : Application Engineering Group

Samsung Electronics Co., Ltd.

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CONTENTS

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

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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 LED Driver

4. Block Diagram

4.1 TFT LCD Module

4.2 LED connection and placement

5. Input Terminal Pin Assignment

5.1 Input Signal & Power

5.2 LVDS Interface

5.3 Timing Diagrams of LVDS For Transmitting

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

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

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

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

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

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

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

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5.5 Pixel format

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

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

- - - - - - - - - - - - - - - - - - - ( 22 )

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

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

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

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

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REVISION HISTORY

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Date Rev. No. Page

Feb. 21, 2011 P00 All The preliminary specification was issued first.

Jun. 4, 2011 A00 - The approval specification of LTN140AT20-D model was issued first.

Summary

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GENERAL DESCRIPTION

DESCRIPTION

LTN140AT20-D 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 time

• LED BLU structure

• DE (Data enable) only mode.

• 3.3V LVDS Interface

• On board EEDID chip

• RoHS compliance

• Halogen free product

• As free compliance

• APS function

APPLICATIONS

• Notebook PC

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

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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” 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

Normally white

Surface treatment

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Mechanical Information

Item Min. Typ. Max. Unit Note

Horizontal (H) 319.9 320.4 320.9 mm

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Module

size

Note (1) Measurement condition of outline dimension

Vertical (V)

Depth (D) - - 3.6 mm (1)

Weight - - 320 g

. Equipment : Vernier Calipers
. Push Force : 500g ⋅f (minimum)

193.2 193.5 193.8 mm w/o PCB and bracket

204.6 205.1 205.6 mm w/ PCB and bracket

1. ABSOLUTE MAXIMUM RATINGS

1.1 ENVIRONMENTAL ABSOLUTE RATINGS

Item Symbol Min. Max. Unit Note

Storage temperate TSTG -20 60 °C (1)

Operating temperate

(Temperature of glass surface)

Shock ( non-operating ) Snop - 240 G (2),(4)

Vibration (non-operating) Vnop - 2.41 G (3),(4)

TOPR 0 50 °C (1)

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

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95 % RH Max. (40 °C ≥ Ta)
Maximum wet - bulb temperature at 39 OC or less. (Ta > 40 °C ) No condensation

100

-40 -20 0 20 40 60 80

Relative Humidity ( %RH)

90

80

60

40

20

Operating Range

Storage Range

5

0

( 40,90 )

( 50,50.4 )

( 60,27.7 )

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

VDD =3.3V, VSS = GND = 0V

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 )

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-

0.03

+0.03

PR-650

BX0.165

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 = 69.3MHz, IL = 23 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)

Color

Chromaticity

( CIE )

Viewing Angle

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Red

Green

Blue

White

Hor.

Ver.

CR

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

YL,AVE 170 200 - cd/m

RX

RY 0.352

GX 0.345

GY 0.565

BY 0.118

WX 0.313

WY 0.329

θL

θR

φH

Normal

Viewing

Angle

φ = 0
θ = 0

CR ≥ 10

500 600 - - (1), (2), (5)

0.577

Typ

40 - -

40 - -

15 - -

Typ

2

-

Degrees

(1), (4)

(1), (5)

(1), (5)

SR-3

φL

Color Gamut CG - 45 - %

13 Points

White Variation

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

Normal Line

o

,

θ = 0

o

θL =90

φ = 0

θ L

o

x

φ L

φ H

≤ C/R)

≤≤

θ R

y

Approval

12 O’clock
direction

φH= 90

o

6 O’clock
direction

φL= 90

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

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

Points : , , , , at the figure of Note (6).

Note 3) Definition of Response time :

Display data

Optical
Response

o

CR(4) + CR(5) + CR(7) + CR(9) + CR(10)

CR =

33

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100%

90%

10%

0%

37

White(TFT OFF) White(TFT OFF)

55

73

TR

5

77

Black(TFT ON)

x'y'

θR=90

TF

o

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

(30%) (50%) (70%)

Average Luminance of White ( YL,AVE )

YL4 + YL5 + YL7 + YL9 + YL10

YL,AVE =

5

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Time

VIEW AREA

(30%)

(50%)

(70%)

: test point

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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 ± 2 °C

Photo-detector

( TOPCON BM-5A

PR-650 )

Field = 2°

TFT-LCD module

Center of the screen

[ Optical characteristics measurement setup ]

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

Maximum luminance of 13 points

δ L =

Minimum luminance of 13 points

50 cm

LCD panel

1 13

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3. ELECTRICAL CHARACTERISTICS

(3) Power dissipation pattern

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

Hsync Frequency fh - 87.7 - KHz fv*(1462)

Main Frequency fDCLK - 69.3 - MHz fh*(790)

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 = 69.3MHZ, VDD = 3.3V , DC Current.

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High VIH - - +100 mV

Low VIL -100 - - mV

White

IDD

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

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

*a) White Pattern *b) Mosaic Pattern

VIEW AREA

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Display Brightest Gray Level

Display Darkest Gray Level

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