
         LM181E1-H2MN
   Liquid Crystal Display
Product Specification
Ver 0.3                         J uly 5, 2000                            Page 4/ 24
1. General Description
  The LM181E1-H2MN is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode
Fluorescent Lamp(CCFL) back light system. The matrix employs a-Si Thin Film Transistor as the active
element. It is a transmissive type display operating in the normally black mode. This TFT-LCD has a 18.1
inch diagonally measured active display area with SXGA resolution(1024 vertical by 1280 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 16,777,216 colors.
 The LM181E1-H2MN has been designed to apply the interface method that enables low power, high
speed low EMI. FPD Link must be used as a LVDS(Low Voltage Differential Signaling) chip.
 The LM181E1-H2MN 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 LM181E1-H2MN characteristics provide an excellent flat panel display for office
automation products such as monitors.
CN1
(21pin)
LVDS
pair #1
LVDS
pair #2
LVDS
#1
LVDS
#2
CN2
(5pin)
Timing
Controller
Power
Circuit
Block
+12V
IV
AA
RGB(F)
RGB(S)
CLK,DTMG
HSYC,VSYNC
G
Source Driver Circuit
TFT-LCD Panel
(1280 x RGB x 1024 pixels)
G1
S1
S1280
G1024
Backlight Assembly(4CCFL)
CN3/4
CN5/6
RGB
CLK
General Features
The following are general feature of the model LM181E1-H2MN LCD;
Active screen size               
Outline dimensions              
Pixel pitch                      
Pixel format                    
Color depth                     
Luminance,White                
Power Consumption             
Weight                         
Display operating mode          
Surface treatments              
18.1 inches(45.97cm) diagonal
412.5(H) 
×
 333.0(V) 
×
 22.5(D) mm (Typ.)
0.2805 mm 
×
 0.2805 mm
1280 horiz. By 1024 vert. Pixels RGB stripe arrangement
8-bit,  16,777,216 colors
200 cd/m
2
 (Typ.)
Total 29.16Watt,Typ.(6.6Watt @IV
AA
,22.56Watt@200cd/m
2 
[Lamp])
2835 (Max.)
Transmissive mode, normally black
Hard coating(3H), 
A
nti-glare treatment of the front polarizer
Alpha Point Ltd.
P.O. Box 41
00751 Helsinki, Finland
http://www.
alpha.fi
Tel.: +
358-9-34 64 34 1
Fax: +
358-9-34 64 34 2