Engineer Specification Model No.: ST-HB56A1X

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Note:
System
Integrator
Engineer Specification
Model No.: ST-HB56A1X
(24V)
QA Safety RD
Rev. : 00 Page : 1 of 20
Issued Date: Oct.11.2006
Model No.: ST-HB56A1X
Doc. No. Tentative
Product
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CONTENTS
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Model No.: ST-HB56A1X
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REVISION HISTORY....................................................................................................................................................3
1. GENERAL DESCRIPTION ..................................................................................................................................4
1.1 OVERVIEW .........................................................................................................................................................................4
1.2 FEATURES .........................................................................................................................................................................4
1.3 APPLICATION.....................................................................................................................................................................4
1.4 GENERAL SPECIFICATIONS...............................................................................................................................................4
2. ELECTRICAL SPECIFICATIONS ........................................................................................................................5
3. ELECTRICAL CHARACTERISTICS....................................................................................................................6
3.1 MEASURING CONDITIONS .................................................................................................................................................6
3.2 TFT LCD MODULE .............................................................................................................................................................6
4. OPTICAL SPECIFICATIONS…………………………………………………………………………………………….8
5. EDID CODE........................................................................................................................................................11
6. LCD INPUT TERMINAL PIN ASSIGNMENT......................................................................................................11
6.1 TFT LCD MODULE DVI INPUT..........................................................................................................................................11
6.2 TFT LCD MODULE POWER INPUT ...................................................................................................................................11
6.3 BACKLIGHT UNIT.............................................................................................................................................................12
6.4 INVERTER UNIT................................................................................................................................................................13
APPENDIX 1 BLOCK DIAGRAM................................................................................................................................15
APPENDIX 2 DVI INTERFACE ..................................................................................................................................16
APPENDIX 3 DVI INTERFACE LINK TIMING............................................................................................................17
APPENDIX 4 DIMENSION .........................................................................................................................................18
APPENDIX 5 PACKING..............................................................................................................................................19
APPENDIX 6 SHIPPING ............................................................................................................................................20

Revision History
Version Date Page Section Description
01 Oct.11.06’ All ST-HB56A1X Specification was first issued.
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1. General Description
1.1 Overview
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ST-HB56A1X is a 56” TFT Liquid Crystal Display (TFT LCD) with 32-CCFL Backlight unit and 2 ports-Dual
DVI interface. This display supports 3840 x 2160 Quad Full High Definition (QFHD) TV format and can
display true 16.7M colors (8-bit/color). The inverter module for backlight is built-in
1.2 Features
- High brightness (500 nits )
- High contrast ratio (1200:1)
- Ultra fast response time ( Gray to Gray average 6.5 ms)
- High color saturation (NTSC 75%)
- QFHD (3840 x 2160 pixels) resolution
- 2 ports-Dual DVI (Digital Visual Interface)
- Ultra wide viewing angle (176(H)/ 176(V) for CR>30)
- RoHS compliance
1.3 Application
- Public Display
- Multi-media Display
- Satellite Communication Application
- Medical Treatment Application
- Security and Monitoring Application
- Industrial Design Application
- Luxurious Living Room TVs
- Home Theater Application
1.4 General Specifications
Item Specification Unit
Active Area 1244.16(H) x 699.84(V) (56.2”diagonal) mm
Bezel Opening Area 1252.1(H) x 707.8(V) mm
Driver Element a-si TFT active matrix -
Pixel Number 3840 x R.G.B x 2160 pixel
Pixel Pitch(Sub Pixel) 0.108(H) x 0.324(V) mm
Pixel Arrangement RGB vertical stripe -
Display Colors 16.7M color
Display Operation Mode Transmissive mode / Normally black -
Surface Treatment Hard coating (3H)
Low reflection coating

3. Electrical Characteristics
3.1 Measuring Conditions
3.2 TFT LCD Module
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4. Optical Specifications
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The relative measurement methods of optical characteristics are shown in 3.1. The following items should
be measured under the test conditions described in 3.1 and stable environment shown in Note (6).
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio CR 900 (1200)) - - Note(1)
Response Time
Gray to
Gray
(6.5) ms Note(2)
Center Luminance of White LC (500) - cd/m 2 Note(3)
Average Luminance of White LAVE (450) cd/m 2 Note(3)
White Variation δW - - (1.6) - Note(4)
Cross Talk
Color
Temperature
Red
CT
Rx
Ry
θx=0°, θY =0°
Viewing Normal Angle
- -
(0.652)
(0.332)
(4) %
-
-
Note(5)
Green
Blue
Gx
Gy
Bx
By
Typ.
-0.03
(0.275)
(0.601)
(0.142)
(0.065)
Typ.
+0.03
-
-
-
-
Note(6)
White
Wx
Wy
0.285
0.293
-
-
Color
Gamut
C.G
(72) 75 %
NTSC
Viewing Angle
Horizontal
Vertical
Note (1) Definition of Contrast Ratio (CR):
θx+ (80) (88) -
θxθY+
CR≥30
(80)
(80)
(88)
(88)
-
-
θY-
(80) (88) -
The contrast ratio can be calculated by the following expression.
Contrast Ratio (CR) = L255 / L0
L255: Luminance of gray level 255
L0: Luminance of gray level 0
CR = CR (5)
CR(X) is corresponding to the Contrast Ratio of the point X at the figure in Note (4)
Note (2) Definition of Gray to Gray Switching Time:
The driving signal means the signal of gray level 0, 63, 127, 191, 255.
Deg. Note(7)
Gray to gray average time means the average switching time of gray level 0, 63, 127, 191, and 255 to each
other.

Note (6) Measurement Setup:
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The LCD module should be stabilized at given temperature for 1 hour to avoid abrupt temperature change
during measuring. In order to stabilize the luminance, the measurement should be executed after lighting
backlight for 1 hour in a windless room.
Note (7) Definition of Viewing Angle (θX, θY):
Viewing angles are measured by EZ-Contrast 160R (Eldim)

5. EDID Code
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Appendix 1 Block Diagram
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Appendix 2 DVI INTERFACE
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Appendix 3 DVI Interface Link Timing
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Appendix 4 Dimension
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Appendix 5 Packing
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Appendix 6 Shipping
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