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Approval
TO :
DATE : Apr. 3, 2008
SAMSUNG TFT-LCD
SAMSUNG TFT-LCD
MODEL NO. :: LTN121AT02
MODEL NO. LTN121AT02
NOTE : Extension code [ -A01 ]
LTN121AT02-A01
Surface type [ Anti-glare ]
Any Modification of Spec is not allowed without SEC' permission
APPROVED BY :
PREPARED BY : John Lee
Application engineering part, Mobile Division
Samsung Electronics Co., Ltd.
6DPVXQJ 6HFUHW
Doc.No. LTN121AT02-A01 Rev.No 04-A00-G-080403 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 Backlight Unit
3.3 Inverter
4. Block Diagram - - - - - - - - - - - - - - - - - - - ( 13 )
4.1 TFT LCD Module
4.2 Backlight Unit
5. Input Terminal Pin Assignment - - - - - - - - - - - - - - - - - - - ( 14 )
5.1 Input Signal & Power
5.2 LVDS Interface
5.3 Backlight Unit
5.4 Timing Diagrams of LVDS For Transmitting
5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color.
5.6 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 Precaution - - - - - - - - - - - - - - - - - - - ( 26 )
11. EDID - - - - - - - - - - - - - - - - - - - ( 28 )
6DPVXQJ 6HFUHW
Doc.No. LTN121AT02-A01 Rev.No 04-A00-G-080403 Page 2 / 30
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REVISION HISTORY
REVISION HISTORY Approval
Date Revision No. Page Summary
Dec. 27, 2007 P00 All The specification of LTN121AT02-A01 model was issued first.
Apr. 3, 2008 A00 All The approval specification of LTN121AT02-A01 model was issued
first.
6DPVXQJ 6HFUHW
Doc.No. LTN121AT02-A01 Rev.No 04-A00-G-080403 Page 3 / 30
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Approval
GENERAL DESCRIPTION
DESCRIPTION
LTN121AT02 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 12.1" contains
1280 x 800 pixels and can display up to 262,144 colors. 6 O'clock direction is the Optimum
viewing angle.
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