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Samsung Secret
Product Information
DATE : 05. Apr. 2012
SAMSUNG TFT-LCD
MODEL : LTA400HM21-W
The Information Described in this Specification is Preliminary and can be changed without
prior notice
Samsung Display Co . , LTD.
MODEL LTA400HM21 Doc. No 06-000-G-20120405 Page 1 / 27
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Samsung Secret
Contents
Revision History -------------------------------------------------------------------------------------------- (3)
General Description --------------------------------------------------------------------------------------- (4)
General Information --------------------------------------------------------------------------------------- (4)
1. Absolute Maximum Ratings -------------------------------------------------------------------------- (5)
2. Optical Characteristics --------------------------------------------------------------------------------- (6)
3. Electrical Characteristics ------------------------------------------------------------------------------- (9)
3.1 TFT LCD Module
3.2 Back Light Unit
3.3 Converter Input & Specification
4. Input Terminal Pin Assignment --------------------------------------------------------------------- (12)
4.1 Input Signal & Power
4.2 Converter Input Pin Configuration
4.3 Converter Input Power Sequence
4.4 LVDS Interface
4.5 Input Signals, Basic Display Colors and Gray Scale of Each Color
5. Interface Timing ---------------------------------------------------------------------------------------- (18)
5.1 Timing Parameters (DE mode)
5.2 LVDS Input data Characteristics
5.3 Timing Diagrams of interface Signal (DE mode)
5.4 Power ON/OFF Sequence
6. Outline Dimension -------------------------------------------------------------------------------------- (21)
7. Packing --------------------------------------------------------------------------------------------------- (24)
8. Marking & Others --------------------------------------------------------------------------------------- (25)
9. General Precaution ----------------------------------------------------------------------------------- (26)
9.1 Handling
9.2 Storage
9.3 Operation
9.4 Operation Condition Guide
9.5 Others
MODEL LTA400HM21 Doc. No 06-000-G-20120405 Page 2 / 27
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Samsung Secret
Revision History
Date Rev. No Page Summary
5. Apr.
000 all First issued
2012
MODEL LTA400HM21 Doc. No 06-000-G-20120405 Page 3 / 27
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General Description Samsung Secret
Description
LTA400HM21 is a color active matrix liquid crystal display (LCD) that uses amorphous
silicon TFT (Thin Film Transistor) as switching components. This model is composed of a
TFT LCD panel, a driver circuit and a back light unit.
The resolution of a 40.0" is 1920 x 1080 and this model can display up to16.7 Million
colors with wide viewing angle of 89 or higher in all directions. This panel is intended to
support applications to provide a excellent performance for Flat Panel Display such as
Home-alone Multimedia TFT-LCD TV and High Definition TV.
Features
RoHS compliance (Pb-free)
High contrast ratio & aperture ratio with wide color gamut
SPVA(Super Patterned Vertical Align) mode
Wide viewing angle ( 178 )
High speed response
FHD resolution (16:9)
Low Power consumption
Edge Type LED (Light Emitted Diode) BLU
DE (Data Enable) mode
2ch LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
General Information
Items Specification Unit Note
921.7 (HTYP) x 536.3 (VTYP) 1.0mm
Module Size mm
32.5 (DMax.) Converter
Weight 9.6 (Max.) kg
Pixel Pitch 0.46125(H) x 0.15375(V) mm
Active Display Area 885.6 x 498.15 mm
Surface Treatment Anti-glare -
Display Colors 8bit
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