One World Touch OP 1200, Service Manual

Page: 124 / 135

Service Manual version 1008
OP 1200/1500/1700 (PC920 Intel 945G)
8-116
A-3: OP 1700 LCD
The standard display used for the OP 1700 is either an LG.Phillips LM170E01 or its equivalent.
LM170E01 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. This TFT-LCD has a 17.0 inch
diagonal 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 16.2M colors with FRC (Frame Rate Control). The
LM170E01-TLE1 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.
The LM170E01-TLE1 is intended to support applications where thin thickness, wide viewing angle, low
power are critical factors and graphic displays are important.
A-3-1. Specification
Item Specification
Active Screen Size 17.0 inches (43.27 cm) diagonal
Outline Dimension 358.5(H) x 296.5 (V) x 17(D) mm (Typ.)
Pixel Pitch 0.264 mm x 0.264 mm
Pixel Format 1280 horiz. by 1024 vert. pixels RGB strip arrangement
Color Depth 16.2M colors ( 6-bit with FRC )
Luminance, White 420 cd/m2 (Center 1 points Typ.)
Power Consumption Total 21.30 Watt (Typ.)
Weight 2,150 g (Typ.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment
Hard coating(2H) & Glare treatment of the front polarizer
A-3-2. Absolute Maximum Ratings of Environment
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit
Parameter Symbol
Values
Units Notes
Min Max
Power Input Voltage V
CC
-0.3 +5.5 Vdc
at 25
°
C
Operating Temperature T
OP
0 50
°
C 1
Storage Temperature T
ST
-20 60
°
C 1
Operating Ambient Humidity H
OP
10 90 %RH 1
Storage Humidity H
ST
10 90 %RH 1
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.
A-3-3. Electrical Characteristics
Parameter
Symbo
l
Value
Unit Notes
Min. Typ. Max.
MODULE
Power Supply Input Voltage V
CC
4.5 5.0 5.5 V
Permissive Power Input Ripple V
RF
- - 0.1 V
Power Supply Input Current I
CC
- 0.5 0.58 mA 1
Power Consumption P
C
- 2.5 2.9 Watts 2
LAMP
Operating Voltage V
BL
615
(6.0mA)
628
(7.5mA)
740
(3.0mA)
V
RMS
3
Operating Current l
BL
3.0 7.5 8.0 mA
RMS
Established Starting Voltage V
BB
4
@25
o
C 1,000 V
RMS
@0
o
C 1,250 V
RMS
Operating Frequency f
BL
40 60 70 KHz 5
Discharge Stabilization T
S
3 Min 6
Power Consumption P
BL
18.8 20.68 Watt 7
Life Time 40,000 Hrs 8