White Electronic Designs
Display Systems Division
D99-516E2P2B2M1
AMLCD PRODUCT - MODEL LC050
Ruggedized 5.0" Display Head Assembly with Backlight
(320 x 234)
OVERVIEW
White Electronic Designs' 5.0" sunlight readable display
head assembly with backlight is ruggedized for harsh
environments. Off-the-shelf AMLCD technology combined
with proven ruggedization techniques provides a cost-
effective, multifunctional display assembly for commercial,
industrial, and military applications. Our unique patented
SBLR™ (Super Bright Low Reflectance) technology
provides optimal readability even in bright sunlight.
5.0" TFT Color Active Matrix LCD
Landscape Mode
4:3 Aspect Ratio
±55°(H); +35°/-55°(V) Viewing Angle @ 5:1 C/R
1/4 VGA 320 x 234 Resolution
Accepts 2 Channels RGB Analog Input
Accepts NTSC Composite Video
Accepts S-Video (Y/C)
Anti-reflective SBLR™ Technology
High Bright/Long Life Backlight
1000:1 Wide Dimming Range Over Temperature
Note: This data sheet is subject to change or cancellation without notice.
ENVIRONMENTAL CHARACTERISTICS
Temperature:
•
•
Operating:
Non Operational:
-40°C to +85°C
-40°C to +85°C
INTERFACE CHARACTERISTICS
Driver Signal Compatibility
Accepts RGB Analog using NTSC or PAL timing
Accepts External Dot Clock
Accepts Discrete and Composite Sync Signals
LCD PANEL SPECIFICATIONS
Parameter
Panel Dimensions
Screen Size
Active Viewing Area
Display Format
Viewing Orientation
Dot Pitch
Pixel Configuration
Display Mode
Specification
111.6(H) x 85.3(V)
127 mm (5.0" diag.)
102.7(H) x 74.9(V)
320 x RGB x 234
6 O'clock
0.107(H) x 0.320(V)
RGB Vertical Stripe
Normally White
mm
Units
mm
mm
mm
pixels
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June, 2004
1
Display Systems Division • Hillsboro, OR • (503) 690-2460 • www.wedc.com
Rev. 3
White Electronic Designs
Display Systems Division
SPECIFICATION
This is the specification for the high performance
Backlight System that is used to illuminate a 5.0-inch
AMLCD display head.
The backlight is a closed loop luminance sensed system.
A sensor monitors the bulb's luminance output and
compares it with the control voltage to regulate output.
The luminance is maintained over time and temperature
variations.
Our multi-bulb system offers built-in redundancy for
continued lighting in the event of single bulb failure. A
built-in lamp heater assembly maintains bulb temperature
at its optimum level. External shutdown of the heater and
lamp power are controlled via an external input. When
lamp replacement is required, an output pin signals
low.
External voltage input is a differential input that provides
common mode rejection of common mode noise. The
luminance output versus input voltage response is non-
linear to provide easy adjustments at low luminance.
D99-516E2P2B2M1
INPUT SIGNALS
+12V(1), +12V(1)_RTN : Power and Return for lamp
and control circuitry
Tolerance:
Noise & Ripple:
Current Cap:
Recommended Cabling:
Tolerance:
Noise & Ripple:
Current Cap:
Recommended Cabling:
± 5%
150mVp-p
1.4 Amps max
#24 AWG Twisted
±5%
150 mVp-p
1.0 Amp max
#24 AWG Twisted
+12V(2), +12V(2)_RTN : Power and Return for heater
+CONTROL, -CONTROL_RTN : 0 to 5V Input for
luminance control voltage
Control Voltage:
Noise & Ripple:
Current Cap:
Recommended Cabling:
0 to +5 V
< 10mVp-p
1mA
#24 AWG Twisted
SIGNAL DEFINITION
Pin
1
2
3
4
5
6
7
8
9
10
Signal
Acronym
+12V(2)_RTN
EXTSHDW
+CONTROL
+CONTROL_RTN
+12V(2)
Not Used
LAMPMNT
Not Used
+12V(1)
+12V(1)_RTN
Output
Input
Input
Input
Output signal to indicate the lamps need
replacement.
Shield of the control voltage cable.
+12 volt power used for the backlight
circuitry.
+12 volt return
Input/
Output
Input
Input
Input
Input
Input
Description
Backlight heater return
Input signal used to shutdown the lamp
and heater power, the control circuitry will
still be powered.
Positive side of the differential voltage
control for the backlight.
Negative side of the differential voltage
control for the backlight. (Normally
Grounded)
This is the power for the internal backlight
heater.
LUMINANCE
Luminance Range: Low: 0.1 fl max.
High: 100fl min.
Control Voltage:
0.000 to 5.000 Volts
(The adjustment range is monotonic with 8 BIT
resolution.)
Uniformity:
30% measured at 5 spots
Note: All measurements at 25
0
C
VIDEO INTERFACE SPECIFICATIONS
FEATURES
Dual Mode NTSC (M) and PAL F Timing for RGB
Video and NTSC Timing for Composite Video
Supports Two Sets of Analog RGB Video Signals
NTSC Composite or S-Video Signals
Display Resolution 320 x 234 (NTSC) and 320 x 273
(PAL)
External Clock Mode
Pin1
Dupont/Berg
Part Number 69168-110
* Looking at component side of PCB.
Pin2
Pin9
Pin10
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June, 2004
5
Display Systems Division • Hillsboro, OR • (503) 690-2460 • www.wedc.com
Rev. 3
Embedded System
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