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Approval
TO : Lenovo
DATE : Jun, 26, 2012
SAMSUNG TFT-LCD
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 : K.H. Lim
PREPARED BY : Sukjoo Jung
Application Engineering Group,
Samsung Display Co., Ltd.
Samsung Secret
Doc.No. LTN140AT20-L02 Rev.No 04-A01-G-120626 Page 1 / 30
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CONTENTS
Approval
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 - - - - - - - - - - - - - - - - - - - ( 10 )
3.1 TFT LCD Module
3.2 LED Driver
4. Block Diagram - - - - - - - - - - - - - - - - - - - ( 13 )
4.1 TFT LCD Module
4.2 LED connection and placement
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 - - - - - - - - - - - - - - - - - - - ( 21 )
8. Packing - - - - - - - - - - - - - - - - - - - ( 23 )
9. Markings & Others - - - - - - - - - - - - - - - - - - - ( 24 )
10. General Precautions - - - - - - - - - - - - - - - - - - - ( 26 )
11. EDID - - - - - - - - - - - - - - - - - - - ( 28 )
Samsung Secret
Doc.No. LTN140AT20-L02 Rev.No 04-A01-G-120626 Page 2 / 30
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REVISION HISTORY Approval
Date Rev. No. Page Summary
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.
Samsung Secret
Doc.No. LTN140AT20-L02 Rev.No 04-A01-G-120626 Page 3 / 30
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Approval
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