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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
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
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
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