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Samsung Secret
Product Information
DATE : 04. July. 2012
SAMSUNG TFT-LCD
MODEL : LTA400HM23
The information described in this specification is preliminary and can be changed without
prior notice
Samsung Display Co . , LTD.
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page 1 / 26
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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 part
3.2 Back light unit part
4. Input terminal pin assignment --------------------------------------------------------------------- (12)
4.1 Input signal & power
4.2 LED Bar connector
4.3 LVDS interface
4.4 Input signals, basic display colors and gray scale of each color
5. Interface timing ---------------------------------------------------------------------------------------- (17)
5.1 Timing parameters
5.2 LVDS Input data characteristics
5.3 3D mode sequence
5.4 Timing diagrams of interface signal
5.5 Power ON/OFF sequence
6. Outline dimension ------------------------------------------------------------------------------------- (20)
7. Packing -------------------------------------------------------------------------------------------------- (22)
8.1 Carton (Internal package)
8.2 Packing specification
8. Marking & Others ------------------------------------------------------------------------------------- (23)
9. General precaution ----------------------------------------------------------------------------------- (24)
9.1 Handling
9.2 Storage
9.3 Operation
9.4 Operation condition guide
9.5 Others
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page 2 / 26
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Samsung Secret
* Revision History
Date Rev. No Page Summary
04. July.
000 All First Issued
2012
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page 3 / 26
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General Description Samsung Secret
Description
LTA400HM23 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 to 16.7million colors with
wide viewing angle of 178 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 (typ.178 )
High speed response
HD resolution (16:9)
Low Power consumption
Direct 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
914.4 (HTyp) x 530.6 (VTyp) 1.0mm
Module Size mm
37 (DMax)
Weight 6200 (Typ.) g
Pixel Pitch 0.46125(H) x 0.15375(W) mm
Active Display Area 885.6 (H) x 498.15 (V) mm
Surface Treatment Anti-Glare Haze 5.5%, Hard coating (2H) -
Display Colors 8 bit