The EL240.128.45 thin film electroluminescent (EL) small graphics
display 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 highbright displays.
The display consists of an EL glass panel and control electronics
connected using elastomeric interconnects into a space-saving,
rugged package for easy mounting and includes a DC/DC
converter. The EL240.128.45 is easily interfaced using a built-in
RAiO RA8835A standard LCD controller. Each of the pixels has
an aspect ratio of 1:1 (V:H) and 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°
No compensation needed
• Rapid display response < 1 ms
• Space efficient mechanical package
• Low EMI emissions
• Extremely rugged and durable
• Low power (3 W)
• Reliable, long operating life with >100,000 MTBF
• Built-in RAiO RA8835A standard LCD controller
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.
CAUTION: To prevent injury in the event of glass breakage, the use of
an impact resistant shield or a protective overlay should be used on the
viewer side of the display.
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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.
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. Mounting surfaces
should be flat to within ±0.6 mm (±.025"). Use all the mounting holes
provided. Failure to do so will impair the shock and vibration resistance of
the final installation.
The EL240.128.45 is a tab mounted display. Use appropriate length
standoffs to assure that screws through the mounting tabs do not
introduce bending stresses into the display. Do not deflect the ECB out of
its normal plane. The EL240.128.45 mounting tabs were designed for a 3
mm screw.
WARNING: These products generate voltages capable of causing
personal injury (high voltage up to 230 Vac ). Do not touch the display
electronics during operation.
Cable Length
A maximum cable length of 600 mm (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.
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 antiglare and anti-reflective films.
Avoiding Burn-In
As with other light emitting displays, displaying fixed patterns on the
screen can cause burn-in, where luminance variations can be noticed.
Use a screen saver or image inversion to avoid causing burn-in on the
display.
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Specifications
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 are applied. The minimum
and maximum specifications in this manual should be met, without exception,
to ensure the long-term reliability of the display. Performance characteristics
are guaranteed when measured at 25 °C with rated input voltage unless
otherwise specified. Planar does not recommend operation of the display
outside these specifications.
Table 1. DC Input Voltage Requirements.
Description
Input voltage (nom=12.0 V)
Input voltage absolute max.
Input current (VH =12.0 V) IH
Logic voltage (nom=5.0 V)
Logic voltage absolute max.
Logic current
Power consumption @ 120 Hz 3.1 5.5 W
Power consumption @ 240 Hz 5.8 10.9 W
*15 % of pixels on per row
CAUTION: Absolute maximum ratings are those values beyond which
Video signals and DC power are supplied to the display through a single
24-pin, dual-row, 2 mm pitch square pin, right-angle, locking connector:
Samtec part number EHT-112-01-S-D-RA, or an equivalent connector
matching the pinouts in Table 3. The mating connector is the Samtec
TCSD family of cable strips. Consult your Samtec representative (1-800SAMTEC9) for cable and connector options.
J1
(Back of display)
(Viewed from top of connector)
Key
Pin 1
Pin 2
Pin 1
(Bottom of display)
Figure 2. Data/Power Connector – J1.
Table 3. Connector Pinouts J1.
Pin Signal Description Pin Signal Description
V
1
H
Display voltage2
3 GND Ground 4 GND Ground
V
5
(+5 V)
L
Logic voltage 6 RES Reset
7 /WR Write 8 /RD Read
9 /CS Chip Select 10 A0 Address
11 SELFTES12 GND Ground
13 D0 input/output 14 D1 input/output
15 D2 input/output 16 D3 input/output
17 D4 input/output 18 D5 input/output
19 D6 input/output 20 D7 input/output
V
(+12 V)
H
21 SEL1 Select 22 READY Display ready
23 GND Ground 24 LUMA Luminance control
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Interface Information
This Small Graphics Display (SGD) incorporates an interface that is
compatible with the 8-bit microprocessor interfaces found in comparable
LCD displays with built-in controllers. The display incorporates a built-in
RAiO RA8835A standard LCD controller.
Table 4. Pin Settings.
Signal Functional Description
D0 to D7
SEL1 Pin 21: µP-interface select. Both 8080-family and 6800-family processors are
/RD or E
/WR or
R//W
/RES Pin 6: When low resets RA8835A, must be high or unconnected in normal
READY Pin 22: OUTPUT When data for Row 128 is written to display drivers this
/CS Pin 9: Chip select. This active-LOW input enables the RA8835A. It is usually
A0 Pin 10: A0, in conjunction with the /RD and /WR or R//W and E signals, control
SELFTEST
VL (+5V)
VH(+12V)
LUMA
GND
Pins 13-20: Tristate input/output pins. Connect to an 8- or 16-bit µP-bus.
supported. SEL1 should be tied directly to V
SEL1 Interface A0 /RD /WR /CS
0 8080 family A0 /RD /WR /CS
1 6800 family A0 E R//W /CS
Pin 8: With the 8080 interface, this signal acts as the active-LOW read strobe.
With the 6800 interface, this signal acts as the active-HIGH enable clock. Data
is read from or written to the display when this clock goes HIGH.
Pin 7: With the 8080 interface, this signal acts as the active-LOW write strobe.
The bus data is latched on the rising edge of this signal. With the 6800
interface, this signal acts as the read/write control signal. Data is read from the
display if this signal is HIGH, and written to the display if it is LOW.
operation
signal goes high. While the signal is high it is possible to write data to
RA8835A memory so that it does not cause disturbances to display data. This
signal goes low at latest 3.5 µs before when loading of Row 1 data begins.
Signal READY output is CMOS with 100 Ω series resistor.
connected to the output of an address decoder device that maps the RA8835A
into the memory space of the controlling microprocessor.
the type of access to the display, as shown below.
8080 Family Interface
A0 /RD /WR Function
0 0 1 Status flag read
1 0 1 Display data and cursor address read
0 1 0 Display data and parameter write
1 1 0 Command write
6800 Family Interface
A0 /RD /WR Function
0 1 1 Status flag read
1 1 1 Display data and cursor address read
0 0 0 Display data and parameter write
1 0 1 Command write
Pin 11: This pin should be connected to GND for normal display operation.
When high, display operates in SELFTEST mode
Pin 5: +5 V logic supply voltage
Pins 1 and 2: +12 V supply for DC-DC converter and display analog circuits
Pin 24: Luminance control input
Pins 3, 4, 12, and 23: Signal return for logic and power supplies
or GND to prevent noise.
L
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Video Input Signals
Figure 3. 8080 Video Input Timing Diagram.
Table 5. 8080 Video Input Timing Description.
Signal Symbol Parameter Condition
min max unit
A0, CS t
t
WR, RD t
t
t
D0 to D7 t
t
t
All signals Tr, Tf
Address hold time 10 - ns
AH8
Address setup time 0 - ns
AW8
System cycle time 550 - ns
CYC
Strobe pulsewidth 120 - ns CL=100 pF
CC
Data setup time 120 - ns
DS8
Data hold time 5 - ns
DH8
RD access time - 50 ns
ACC8
Output disable time 10 50 ns
OH8
Input rise and fall
30 ns
times
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Figure 4. 6800 Video Input Timing Diagram.
Table 6. 6800 Video Input Timing Description.
Signal Symbol Parameter Condition
min max Unit
A0, /CS, t
R//W t
t
t
D0 to D7 t
t
t
System cycle time 550 - ns
CYC6
Address setup time 0
AW6
Address hold time 0 - ns
AH6
Data setup time 100 - ns CL=100 pF
DS6
Data hold time 0 - ns
DH6
Output disable time 10 50 ns
OH6
Access time - 85 ns
ACC6
E tEW Enable pulsewidth 120
All signals Tr, Tf
Input rise and fall
30 ns
times
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Dimming
The dimming control circuitry on the display allows the user to adjust the
luminance from 5 % to 95 % of the maximum brightness.
To control the display luminance, connect a 50 kΩ variable resistor
between ground and the dimming pin (LUMA). The full resistance of 50
kΩ will result in 95 % of the maximum luminance. Reducing the
resistance will reduce the luminance, with resistance of 0 Ω yielding
roughly 5 % of the maximum luminance.
Alternatively an external voltage or current-mode D/A converter may be
used to dim the display by sinking a maximum of 250 µA for maximum
dimming from LUMA to ground. When left open, the luminance will remain
at the maximum level.
Table 7. Luminance Control.
Maximum (No resistor connected): 100 % (Default)
Maximum (50 k Ω resistor connected): 95 %
Minimum (0 Ω resistor connected): 5 % maximum
Open Circuit voltage 4 V nominal
Sink Current 250 µA max, Vin = 0 V
Luminance values are measured as a percentage of full On Luminance
(with the external resistor disconnected.)
Self-Test Mode
The display incorporates a self-test mode composed of a 1 x 1
checkerboard and full-on pattern displayed at 240 Hz. Upon power up,
the 1 x 1 pattern is displayed for several seconds, then the full-on pattern
is displayed continuously. The self-test mode is entered by leaving the
SELFTEST pin pulled high. For normal operation the SELFTEST pin must
be pulled to a logic low. If the SELFTEST pin is pulled high during normal
operation, the display will enter the self-test mode with the all-pixels-on
pattern.
Power-up Sequence
No special power-up or video sequencing is required.
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Optical
Table 8. Optical Characteristics.
Luminance
Lon (areal), typ
Lon (areal), min
Loff (areal), max
Non-uniformity
All pixels fully lit 25 %
Luminance Variation (T emperature)
Maximum
Luminance Variation (Time)
Maximum <20 %
Viewing Angle
Minimum
65 cd/m²
130 cd/m²
45 cd/m²
90 cd/m²
0.30 cd/m²
±20 % From 25 °C to operating temp. extremes;
>160°
@ 120 Hz
@ 240 Hz
@ 120 Hz
@ 240 Hz
@ 240 Hz
Maximum difference between any
2 of 5 points, using the formula:
LNU %=[1- (min_lum/max_lum)] x 100 %
all pixels on.
10,000 hours at 25 °C ambient; all pixels
on.
Contrast Ratio
500 lux
5000 lux
Command Description
The EL240.128.45 display is driven by the RAiO RA8835A controller. For
details on using this controller, refer to the Command Description section of
the RA8835 manual titled RA8835 Dot Matrix LCD Controller Specification.
This document is on the RAiO website at http://www.raio.com.tw/
Required register settings and configuration items
• The module uses one 32kx8 SRAM for all CG and display memory.
• W/S, bit 3 of the P1 byte of the SYSTEM SET instruction, is set to 0 for
a single drive panel.
• DR, bit 7 of the P1 byte of the SYSTEM SET instruction, is set to 0 to
turn off the additional output cycle of the shift clock
• The recommended SYSTEM.SET parameter values are (P1 through
P8) in hex, for a frame rate of 240 Hz: 32, 07, 07, 1D, 23, 7F, 1E, 00.
• P5 must not be less than 23 to guarantee that minimum line period
requirement of the display is achieved (32.5 µs)
• The READY flag is high during extra line times, so P6 should be over
7F if the READY flag is used. After the falling edge of the READY flag
there is min. 3.5 µs time to end the display memory write cycle.
• Oscillator frequency to RAiO RA8835A is 10 MHz
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Environmental
)
Table 9. Environmental Characteristics.
Temperature
Operating
Operating survival
Non-operating
Humidity
Operating
Non-operating to 95 % RH max @ 25-55 °C, per IEC 68-2-30 (Condensing
-20 °C to +70 °C
-40 °C to +85 °C
-50 °C to +105 °C
to 93 % RH max @ 40 ºC, per IEC 68-2-3
(Non-condensing)
After 12 hours at -50 °C, display
must be at -40 °C for 1 hour prior to
power on.
Altitude
Operating/non-operating 0 to 18,000 m per IEC 68-2-13
Vibration
Operating/nonoperating
Mechanical Shock
Operating/nonoperating
Thermal Shock
Displays are non-operating during the tests performed per IEC 68-2-14. Test Na.
Reliability
The display MTBF is demonstrated to be greater than 100,000 hours at
maximum frame rate with a 90 % confidence level at 25 °C.
Safety and EMI Performance
The display will not inhibit the end product from complying with FCC Part
15 Subpart J, Class B and EN55022 Class B when housed in a suitable
enclosure.
2
0.02 g
each axis, per IEC 68-2-36, Random
100 g, 6 ms duration (half sine wave), three shocks per
surface (6), tested per IEC 68-2-27, Test Ea
-40 °C for 30 min., room temperature for ~3 min., then
85 °C for 30 min. Cycle repeated five times.
/Hz, 5-500 Hz, 30 minutes on
The display will be a recognized component under UL1950 by
Underwriters Laboratories. The display will not inhibit the end product
from complying with CSA C22.2 No. 950 and EN60950.
The component envelope shown in Figure 4 illustrates the distance
components extend behind the display. Tall components do not
necessarily fill this area. Planar reserves the right to relocate components
within the constraints of the component envelope without prior customer
notification. For this reason, Planar advises users to design enclosure
components to be outside the component envelope.
An air gap of at least 5 mm is recommended to dissipate heat from
display components. Device designers will need to consider their specific
system requirements to determine the necessary spacing.
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Dimensions in are millimeters.
Tolerances unless specified:
.x
.xx
±0.50
±0.25
Figure 5. Display Dimensions.
Note: This is not a controlled version of the mechanical drawing. Prior to beginning your
design, please contact Planar Applications Engineering for the current detailed drawing.
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Description of Warranty
Seller warrants that the Goods will conform to published specifications and be free from
defects in material for 12 months from delivery. To the extent that Goods incorporate thirdparty-owned software, Seller shall pass on Seller's licensor's warranty to Buyer subject to the
terms and conditions of Seller's license.
Warranty repairs shall be warranted for the remainder of the original warranty period. Buyer
shall report defect claims in writing to Seller immediately upon discovery, and in any event,
within the warranty period. Buyer must return Goods to Seller within 30 days of Seller’s
receipt of a warranty claim notice and only after receiving Seller’s Return Goods Authorization.
Seller shall, at its sole option, repair or replace the Goods.
If Goods were repaired, altered or modified by persons other than Seller, this warranty is void.
Conditions resulting from normal wear and tear and Buyer's failure to properly store, install,
operate, handle or maintain the Goods are not within this warranty. Repair or replacement of
Goods is Seller’s sole obligation and Buyer's exclusive remedy for all claims of defects. If that
remedy is adjudicated insufficient, Seller shall refund Buyer's paid price for the Goods and
have no other liability to Buyer.
All warranty repairs must be performed at Seller’s authorized service center using parts
approved by Seller. Buyer shall pay costs of sending Goods to Seller on a warranty claim and
Seller shall pay costs of returning Goods to Buyer. The turnaround time on repairs will usually
be 30 working days or less. Seller accepts no added liability for additional days for repair or
replacement.
If Seller offers technical support relating to the Goods, such support shall neither modify the
warranty nor create an obligation of Seller. Buyer is not relying on Seller’s skill or judgment to
select Goods for Buyer’s purposes. Seller’s software, if included with Goods, is sold as is,
and this warranty is inapplicable to such software.
SELLER DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
Ordering Information
Product Part Number Features
EL240.128.45 996-0301-01LF Standard version
Design and specifications are subject to change without notice.
Planar Systems continues to provide optional, and in many cases custom, features to address
the specific customer requirements. Consult Planar Sales for pricing, lead time and minimum
quantity requirements.
Support and Service
Planar is a U.S. company based in Beaverton, Oregon and Espoo, Finland, with a world-wide
sales distribution network. Full application engineering support and service are available to
make the integration of Planar displays as simple and quick as possible for our customers.
RMA Procedure: For a Returned Material Authorization number, please contact Planar
Systems, Inc. with the model number(s) and serial number(s). When returning goods for repair,
please include a brief description of the problem, and mark the outside of the shipping
container with the RMA number.