General Panel Specifications
Parameter
Specification
Units
Panel Dimensions
96.1(H)x75.5(V)
m m
Screen Size
4.0" diag. (101.6 mm)
in.
Effective Viewing Area
80.7(H) x 60.6(V)
m m
Active Area
48.90
cm
2
Display Format
320xRGBx234
pixels
Viewing Orientation
6:00*
Dot Pitch
0.687(H)x0.259(V)
m m
Pixel Configuration
RGB Delta
Display Mode
Normally White
Transmissivity
7.4%
*12:00 viewing possible w/ scan reversal
Ruggedized, Sunlight Readable 4.0 Color
Active Matrix LCD Module
Model: LC040
Preliminary
Product Sheet
EDI040 - Short Form - Rev 1 - 5/98
Electronic Designs, Inc. (EDI) has developed a 4.0" diagonal,
ruggedized, sunlight readable color active matrix LCD display head
for use in harsh, sunlight readable applica-
tions. Designed for use in commercial and
military cockpits as a multifunctional color
display assembly, EDI's display head utilizes
proven ruggedization techniques and high
performance commercial off the shelf
AMLCD technology to provide a cost effective
solution for tough applications.
Active Matrix TFT
Landscape Mode
4:3 Aspect Ratio
Resolution: 160xRGB
x234
Accepts 2 Channels RGB Analog Input
Accepts NTSC (Composite Video)
Accepts S-Video (Y/C)
60 Horiz; +55/-35 Vert Viewing
Anti-reflective
EMI Shielded (option)
High Bright/Long Life Backlight
Parameter
Symbol Min Typ
Max Units
Positive Input Voltage
VS
10.5
12.0
13.0
V
Negative Input Voltage
VSL
-8.0
-12.0
-13.0
V
Analog Input Voltage
Vah
0.7
0.74
1.0
Vp-p
Digital Input Voltage
Vdh
3.7
--
5.1
V
Vdl
0
--
1.0
V
Environmental Characteristics
Temperature:
Operating (w/o heater): -30C to +85C
Operating (w/heater)
1
: -40C to +85C
Non Operational: -55C to +90C
MTBF:
AMLCD > 40,000 hours
2
Backlight > 17,000 hours
2
1. Ruggedized with 25ohm/sq. heater
2. Under nominal temperature conditions
Interface Characteristics
Driver Signal Compatibility:
Accepts RGB Analog using NTSC or PAL timing
Accepts NTSC
Accepts S-Video
Accepts Discrete and Composite Sync Signals
Viewing Angle
EDI offers for the first time a Wide Viewing Angle 4.0" ruggedized
unit. EDI has the capability to enhance the viewing area by the
application of compensation films. This enhancement offers
systems integrators to utilize this panel in cross cockpit applica-
tions where sunlight readability at extreme angles is critical.
Left/Right:
60/60
Top/Bottom:
35/60
Shall maintain a contrast ratio of 5:1 in dark ambient conditions.
Power Input Specifications
Electronic Designs, Inc.
One Research Drive Westborough, MA 01581 USA 508-366-5151 FAX 508-836-4850
http://www.electronic-designs.com
Mechanical
Model: LC040
Backlight Characteristics
The EDI 4.0" backlight is a closed loop luminance sensed system. A
luminance sensor monitors the luminance output of the bulb and
compares its output with the input voltage setting, and regulates the
luminance output. The luminance is maintained over time and
temperature variations.
This system is a multi-bulb approach, which offers built in redun-
dancy that provides light output in the case of a single bulb failure.
There is a built-in lamp heater assembly as well, which maintains the
bulb temperature at its optimum level.
External shutdown of the heater and lamp power are controlled via an
external input. Users will be warned as to when lamp maintenance
should be performed through an output pin that signals high when
replacement is needed.
The external voltage input is a differential input, providing common
mode rejection of common mode noise. The luminance output
versus input voltage response has been made non-linear at the low
luminance end to provide easy adjustments at the low end.
Luminance Range:
.065 - 0.1 min
130 - 150 max
Control Voltage:
0.000 to 5.000 Volts
(The adjustment range is monotonic with 8 BIT resolution.)
Uniformity:
30% Calculated
|X-Xbar|/Xbar measured at 5 spots
Power:
12 Watts Max (12V @1A)
Parameter
Typ
Units
Response Time
Rise
30
m s
Decay
50
m s
Transmission
7.4%
%
Specular Reflectance
1.5%
%
Diffuse Reflectance
0.4%
%
Dot Pitch
Horizontal
0.168
m m
Vertical
0.259
m m
Chromaticity Coordinates
Red
x
0.612
y
0.343
Green
x
0.302
y
0.596
Blue
x
0.156
y
0.172
White
x
0.337
y
0.397
Black
x
0.298
y
0.364
AMLCD Characteristics
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