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LM185WH1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 18.5" HD TFT LCD
BUYER HP SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LM185WH1
SUFFIX TLH1
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE DATE APPROVED BY DATE
S.G. HONG / G.Manager
/
REVIEWED BY
S.U. BYUN / Manager [C]
/ Y.H. HWANG / Manager [M]
H.S. LEE / Manager [P]
PREPARED BY
/
B.Y. KIM / Engineer
Please return 1 copy for your confirmation Product Engineering Dept.
With your signature and comments. LG Display Co., Ltd
Ver. 1.0 MAR., 03, 2010 1 / 31
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LM185WH1
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6
1) ELECTRICAL CHARACTERISTICS 6
2) INTERFACE CONNECTIONS 9
3) LVDS characteristics 12
4) SIGNAL TIMING SPECIFICATIONS 15
5) SIGNAL TIMING WAVEFORMS 16
6) COLOR INPUT DATA REFERNECE 17
7) POWER SEQUENCE 18
8) POWER DIP CONDITION 19
4 OPTICAL SFECIFICATIONS 20
5 MECHANICAL CHARACTERISTICS 25
6 RELIABILITY 27
7 INTERNATIONAL STANDARDS 28
1) SAFETY 28
2) EMC 28
8 PACKING 29
1) DESIGNATION OF LOT MARK 29
2) PACKING FORM 29
9 PRECAUTIONS 30
1) MOUNTING PRECAUTIONS 30
2) OPERATING PRECAUTIONS 30
3) ELECTROSTATIC DISCHARGE CONTROL 31
4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 31
5) STROAGE 31
6) HANDLING PRECAUTIONS FOR PROTECTION FILM 31
Ver. 1.0 MAR., 03, 2010 2 / 31
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LM185WH1
Liquid Crystal Display
Product Specification
Record of revisions
Revision No Date Page Description
Ver 0.0 JAN.,26,2010 Preliminary Specifications
Ver 1.0 MAR.,03,2010 Final Specifications
Ver. 1.0 MAR., 03, 2010 3 / 31
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LM185WH1
Liquid Crystal Display
Product Specification
1. General description
LM185WH1-TLH1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode
Fluorescent Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the
active element. It is a transmissive type display operating in the normally white mode. It has a
18.5 inch diagonally measured active display area with HD resolution (768 vertical by 1366
horizontal pixel array) Each pixel is divided into Red, Green and Blue sub-pixels or dots which
are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel color is determined
with a 8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,7M colors
with Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method
that enables low power, high speed, low EMI. FPD Link or compatible must be used as a
LVDS(Low Voltage Differential Signaling) chip. It is intended to support applications where thin
thickness, wide viewing angle, low power are critical factors and graphic displays are important.
In combination with the vertical arrangement of the sub-pixels, the LM185WH1-TLH1
characteristics provide an excellent flat panel display for office automation products such as
monitors.
RGB
FIG. 1 Block diagram
Source driver circuit
S1 S1366
G1
LVDS Timing
pair #1 controller
TFT-LCD Panel
(1366 RGB 768 pixels)
CN1
+5V Power circuit G768
VLCD block
CN2 (2pin)
Backlight assembly (2 CCFLs)
CN3 (2pin)
General features
Active screen size 18.51 inches (470.1mm) diagonal
Outline Dimension 430.4(H) x 254.6(V) x 13.0(D) mm(Typ.)
Pixel Pitch 0.10*RGB(H)mm x 0.30(V)mm
Pixel Format 1366 horizontal By 768 vertical Pixels. RGB stripe arrangement
Interface LVDS 1Port
Color depth 16.7M colors
Luminance, white 200 cd/m2 ( Center 1Point, typ)
Viewing Angle (CR>10) R/L 90(Typ.), U/D 50(Typ.)
Power Consumption Total 14.31W(Typ.), (3.60 W@VLCD , 10.71W@IBL = 8.5 mA)
Weight 1370g(Typ)
Display operating mode Transmissive mode, Normally White
Surface treatments Hard coating (3H), Anti-glare treatment of the front polarizer
Ver. 1.0 MAR., 03, 2010 4 / 31
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LM185WH1
Liquid Crystal Display
Product Specification
2. Absolute maximum ratings
The following are maximum values which, if exceeded,
may cause faulty operation or damage to the unit.
Table 1. Absolute maximum ratings
Values
Parameter Symbol Units Notes
Min Max
Power Supply Input Voltage VLCD -0.3 +6.0 Vdc At 25
Operating Temperature TOP 0 50 C
Storage Temperature TST -20 60 C
1
Operating Ambient Humidity HOP 10 90 %RH
Storage Humidity HST 10 90 %RH
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 C Max, and no condensation of water.
FIG. 2 Temperature and relative humidity
90%
60
60%
50 Storage
Wet Bulb
Temperature [ ]
Humidity
[(%)RH]
40
40%
Operation
30
20
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [ ]
Ver. 1.0 MAR., 03, 2010 5 / 31
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LM185WH1
Liquid Crystal Display
Product Specification
3. Electrical specifications
3-1. Electrical characteristics
It requires two power inputs. One is employed to power the LCD electronics and to drive the
TFT array and liquid crystal. The second input power for the CCFL/Backlight, is typically
generated by an inverter. The inverter is an external unit to the LCDs.
Table 2. Electrical characteristics
Values
Parameter Symbol Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage VLCD 4.5 5.0 5.5 Vdc
Permissive Power Input Ripple VLCD - - 0.3 V 3
ILCD-MOSAIC - 720 940 mA 1
Power Supply Input Current
ILCD-BLACK - 900 1170 mA 2
Power Consumption PLCD - 3.60 4.70 Watt 1
Inrush current IRUSH - - 3.0 A 4
Note :
1. The specified current and power consumption are
under the VLCD=5.0V, 25