Planar EL320.240.36-HB User manual

EL320.240.36-HB
High-Bright Small Graphics Display
USER’S MANUAL
www.planar.com

Revision Control
Date Description
September 2001 Document number OM220-01
June 2004 Document number 020-0346-00A

Contents
EL320.240.36-HB Quarter-VGA Display..............................................................................................................2
Features and Benefits..........................................................................................................................................2
Installation and Handling........................................................................................................................................3
Mounting EL Displays..........................................................................................................................................3
Cable Length...........................................................................................................................................................4
Cleaning ...................................................................................................................................................................4
Avoiding Burn-In ...................................................................................................................................................4
Specifications ..............................................................................................................................................................5
Control Basics .........................................................................................................................................................5
Power.........................................................................................................................................................................5
Connector................................................................................................................................................................6
Dimming Connector J2.................................................................................................................................. 7
Interface Information...........................................................................................................................................7
Video Input Signals.......................................................................................................................................... 7
Internal Frame Buffer...........................................................................................................................................9
Dimming ..................................................................................................................................................................9
Self-Test Mode........................................................................................................................................................9
Optical.....................................................................................................................................................................10
Environmental......................................................................................................................................................10
Reliability................................................................................................................................................................11
Safety and EMI Performance...........................................................................................................................11
Optional Features................................................................................................................................................11
Mechanical Characteristics..............................................................................................................................11
Component Envelope .......................................................................................................................................11
Description of Warranty ........................................................................................................................................13
Ordering Information.............................................................................................................................................13
Support and Service................................................................................................................................................14
Figures
Figure 1. Data/Power Connector.....................................................................................................................6
Figure 2. Video Input Timing Diagram ..........................................................................................................7
Figure 3. Pixel Location versus Sequence of Data.....................................................................................8
Figure 4. Display Dimensions..........................................................................................................................12
Tables
Table 1. DC Input Voltage Requirements. ....................................................................................................5
Table 2. Video Input Requirements. ...............................................................................................................5
Table 3. J1 Connector Pinouts..........................................................................................................................6
Table 4. Video Input Descriptions. ..................................................................................................................8
Table 5. Luminance Control ..............................................................................................................................9
Table 6. Optical Characteristics......................................................................................................................10
Table 7. Environmental Characteristics.......................................................................................................10
Table 8. Mechanical Characteristics..............................................................................................................11

EL320.240.36-HB Operations Manual (020-0346-00A)
2
EL320.240.36-HB Quarter-VGA Display
The EL320.240.36-HB thin film electroluminescent (EL) display is a high-
performance alternative to quarter-VGA LCDs and is the ideal solution in
demanding applications where superior visual performance and
environmental ruggedness are critical. The EL320.240.36-HB utilizes Planar’s
proprietary Integral Contrast Enhancement (ICE™) technology to achieve
unparalleled image quality without the use of expensive filters. This small
graphics display excels in a wide range of ambient lighting environments
while effectively eliminating the blooming common to other high-bright
displays.
The display consists of an EL glass panel and control electronics assembled
into a space-saving, rugged package for easy mounting. The EL320.240.36-
HB is easily interfaced using standard 4-bit LCD control signals. Each of the
76,800 pixels is individually addressable to clearly display high information
content graphics and text.
Features and Benefits
• Excellent visual performance:
High brightness and contrast
Wide viewing angle >160°
• Rapid display response <1 ms
• Frame Buffer
• Space efficient mechanical package
• Low EMI emissions
• Extremely rugged and durable
• Reliable, long operating life
• 4-bit LCD-type interface

EL320.240.36-HB Operations Manual (020-0346-00A) 3
Installation and Handling
Do not drop, bend, or flex the display. Do not allow objects to strike the
surface of the display.
CAUTION: The display uses CMOS and power MOS-FET devices. These
components are electrostatic sensitive. Unpack, assemble, and examine this
assembly in a static-controlled area only. When shipping, use packing
materials designed for protection of electrostatic-sensitive components.
Mounting EL Displays
Properly mounted, EL displays can withstand high shock loads as well as
severe vibration found in demanding applications. However the glass panel
used in an EL display will break if subjected to bending stresses, high impact,
or excessive loads.
Avoid bending the display. Stresses are often introduced when a display is
mounted into a product. Ideally, the mounting tabs of the display should be
the only point of contact with the system. Use a spacer or boss for support;
failure to do so will bend the display and cause the glass to break. The
instrument enclosure or frame should not flex or distort in such a way that
during use the bending loads might be transferred to the display. The
EL320.240.36-HB mounting tabs were designed for a 3 mm screw. Mounting
surfaces should be flat to within ±0.6 mm (±0.025"). Use all the mounting holes
provided. Failure to do so will impair the shock and vibration resistance of the
final installation.
CAUTION: To prevent injury in the event of glass breakage, a protective
overlay should be used on the viewer side of the display.
WARNING: These products generate voltages capable of causing personal
injury (high voltage up to 235 V
ac
). Do not touch the display electronics
during operation.

EL320.240.36-HB Operations Manual (020-0346-00A)
4
Cable Length
A maximum cable length of 0.6 m (24 in.) is recommended. Longer cables may
cause data transfer problems between the data transmitted and the display
input connector. Excessive cable lengths can pick up unwanted EMI. There are
third party products which allow this maximum cable length to be exceeded.
Contact Planar Application Engineering for more information.
Cleaning
As with any glass or coated surface, care should be taken to minimize
scratching. Clean the display glass with mild, water-based detergents only.
Apply the cleaner sparingly to a soft cloth, then wipe the display. Disposable
cleaning cloths are recommended to minimize the risk of inadvertently
scratching the display with particles embedded in a re-used cloth. Particular
care should be taken when cleaning displays with anti-glare and anti-reflective
films.
Avoiding Burn-In
As with other light emitting displays, use a screen saver or image inversion to
avoid causing burn-in on the display. Displaying fixed patterns on the screen
can cause burn-in, where luminance variations can be noticed.

EL320.240.36-HB Operations Manual (020-0346-00A) 5
Specifications
Performance characteristics are guaranteed when measured at 25°C with rated
input voltage unless otherwise specified.
Control Basics
The EL panel is a matrix structure with column and row electrodes arranged in
an X-Y formation. Light is emitted when an AC voltage of sufficient amplitude
is applied at a row-column intersection. The display operation is based on the
symmetric, line-at-a-time data addressing scheme.
Power
The supply voltages are shown in Table 1. All internal high voltages are
generated from the display supply voltage (VH). The logic supply voltage (VL)
should be present whenever video input signals or VHis applied. The
minimum and maximum specifications in this manual should be met, without
exception, to ensure the long-term reliability of the display. Planar does not
recommend operation of the display outside these specifications.
Table 1. DC Input Voltage Requirements.
Parameter Symbol Min Typ Max Absolute Max
Logic supply voltage V
L
4.75
V
5 V 5.25 V 6 V
Logic supply current at +5 V I
L
0.10 A
Display supply voltage V
H
8 V 12 V 18 V 19V
Supply current at +12 V I
H
0.4A 0.9 A
Power consumption @
maximum frame rate
5.5 W 11 W
Power consumption @ 120 Hz 3.5 W
CAUTION: Absolute maximum ratings are those values beyond which
damage to the device may occur.
Table 2. Video Input Requirements.
Description Min Max Units Notes
Absolute Input Voltage
Range
-0.3 5.5 V V
L=
5.0 V
Video logic high voltage 2.2 5.0 V All input thresholds are TTL
Video logic low voltage 0 0.8 V
Video logic input current – ±0.25 mA ±0.75 mA max Selftest
Input capacitance – 15 pF
There is no overcurrent protection on either the VHor VLinputs to protect
against catastrophic faults. Planar recommends the use of a series fuse on the
12 volt supply(VH). A general guideline is to rate the fuse at 1.8 to 2 times the
display maximum current rating.

EL320.240.36-HB Operations Manual (020-0346-00A)
6
Connector
The display uses the Samtec EHT-110-01-S-D or equivalent locking connector.
The mating connector is in the Samtec TCSD family of cable strips. The proper
connector, user-specified cable length and connector configuration is supplied
as a single unit. Consult your Samtec representative (1-800-SAMTEC9) for the
cable/connector options. Compatibility with non-Samtec equivalents should
be verified before use.
Figure 1. Data/Power Connector
Table 3. J1 Connector Pinouts.
Pin Signal Description Pin Signal Description
1 V
H
+12 V Power 2 V
H
+12 V Power
3 Selftest Selftest Input
1
4 SCAN Scan rate control
5 V
L
+5 V Power 6 GND Ground
7 VS Vertical Sync 8 GND Ground
9 HS Horizontal Sync 10 GND Ground
11 VCLK Video Clock 12 GND Ground
13 VID
0
Video Data 14 GND Ground
15 VID
1
Video Data 16 GND Ground
17 VID
2
Video Data 18 GND Ground
19 VID
3
Video Data 20 GND Ground
1
Connect pin 3 to ground for normal display operation.
J1
J2
Pin 1
Pin 1
Key
Pin 2
Pin 1 Ke
y
(Viewed from top of connector)
(Viewed from
back of display)

EL320.240.36-HB Operations Manual (020-0346-00A) 7
Dimming Connector J2
The J2 analog dimming connector is a Berg six-pin, dual in-line header, part
number 95615-106. The mating connector is the Berg 89947-706 (IDC) or a
combination of the Berg 77138-001 (discrete crimp-to-wire receptacle) and the
Berg 90311-006 (housing). Refer to “Dimming” on page 9 for more
information.
The pin assignments are:
Pin Symbol Description
1 LUMA Luminance A
2 GND Ground
3 RESERVED Reserved
4 LUMC Luminance C
5 GND Ground
6 LUMD Luminance D
Interface Information
Planar EL Small Graphics Displays (SGD) incorporate an interface that is similar
to many LCD interfaces. This interface is supported by a variety of
off-the-shelf chip sets which take care of all display control functionality,
freeing the system processor for other tasks. Designers should select the chip
set that best suits their particular architecture and price point.
Video Input Signals
The end of the top line of a frame is marked by VS, vertical sync signal as
shown in Figure 2. The end of each row of data is marked by HS. Depending on
the input frame rate, a continuous low state of the VS input signal will shut the
display scan after one frame period.
Figure 2. Video Input Timing Diagram.
Timing is compatible with LCD graphics controllers.
Pin 1
3
4 5
6
7 8
9
1 2
10 11
Second Line
VID Data
First Line
VID Data
Pixels: a b c dPixels: w x y z
HS
VID 0-3
VCLK
HS
VS
Vertical Timing
Horizontal Timing

EL320.240.36-HB Operations Manual (020-0346-00A)
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Table 4. Video Input Descriptions.
Num Description Symbol Min. Typ. Max. Units
1 HS high time tHSh 100 nsec
2 HS low time tHSl 80 tVCLK
3 HS to VCLK rising edge tHSsu 95 nsec
4 VID setup to VCLK tVIDsu 50 nsec
5 VID hold from VCLK tVIDhd 50 nsec
6 Video clock period tVCLK 140 nsec
VCLK rise, fall time tVCLKrf 10 15 nsec
7 VCLK low width tVCLKl 30 nsec
8 VCLK high width tVCLKh 30 nsec
9 VS high setup to HS low tVShsu 140 nsec
10 VS hold after HS tVShd 140 nsec
11 VS low setup to HS high tVSlsu 140 nsec
12 HS period tHS 34 µsec
VS period tVS 240 tHS
Frame Rate fVS 1 120 Hz
Input signals VID0through VID3contain the video data for the screen. Pixel
information is supplied from left to right and from top to bottom four pixels at
a time. Video data for one row is latched on the fall of HS.
a b c d e f g h i j k l mn o p
EL Panel
(Front)
w xyz
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
w
x
y
z
VID3
VID2
VID1
VID0
Row 1
Figure 3. Pixel Location versus Sequence of Data.