FDI ELI50-CPW 5.0 Inch PCAP Touch Screen LCD Module User Manual

: May 15, 2024
: FDI

Table of Contents

Important Legal Information
Introduction
Recommended Accessories (Purchased Separately)
Touchscreen Precaution
ESD Warning
Determining the Revision of your ELI
Technical Specifications
Mechanical Details
Connectors
Power Details
Touch Activity LED
Extended Display Information Data (EDID)
PWM Control of Backlight
Support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

DI ELI50-CPW 5.0 Inch PCAP Touch Screen LCD Module

FDI ELI50-CPW 5.0 Inch PCAP Touch Screen LCD Module

Important Legal Information

Information in this document is provided solely to enable the use of Future Designs, Inc. (FDI) products.
FDI assumes no liability whatsoever, including infringement of any patent or copyright. FDI reserves the right to make changes to these specifications at any time, without notice. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Future Designs, Inc. 996 A Cleaner Way, Huntsville, AL 35805.

Microsoft, Windows, Windows 10 are registered trademarks of Microsoft Corporation. Other brand names are trademarks or registered trademarks of their respective owners.

Printed in the United States of America.

FDI Document PN: MA00105 Revision: 1.0, 11/20/2023

Introduction

About ELI (the Easy LCD Interface)

ELI® is Future Designs, Inc.’s family of long-life, plug-and-play embedded displays. ELI products are true modular embedded display solutions that require no engineering or lead-time.
All ELI products are compatible with a wide range of single board computers including Raspberry Pi, BeagleBone Black and Windows-based units. FDI designed ELI as an embedded display option that requires minimal development time to help customers reach production quickly. Once a product is in production, FDI’s 10 to 15 year ELI product availability guarantee helps ensure production schedules without the risk of expensive or time consuming redesigns. Learn more about ELI at TeamFDI.com/ELI.

ELI Compatibility

ELI products are compatible with most Single Board Computers, PCs, and operating systems.
See https://www.teamfdi.com/product-details/eli50-cpw#compatibility for the results of FDI’s compatibility tests with popular operating systems and platforms. Our results, as indicated in the table, demonstrate ELI versatility but the table is not exhaustive. ELI products are designed to work with any single board computer that has an HDMI or DP output. To submit a question about ELI compatibility with a platform or operating system that is not included in the table, contact a member of the FDI support team at Support@teamfdi.com.

Your ELI Experience

Share your experience connecting ELI devices to various (single board) computers at: http://www.teamfdi.com/edid/#edidform.

Recommended Accessories (Purchased Separately)

7.5V to 17V DC (+/- 5%) Power Supply, with a center positive barrel connection.
Power Input Cable (FDI P/N: ELI50-CPW-PIC) available from DigiKey or Mouser.
Or build your own Power Input Cable using these items.
- 2.1mm I.D. x 5.5mm O.D. Jack to Screw Terminal, on DigiKey PN: 1528-1386-ND
- 4-pin, 1.5mm Molex connector for power input, Molex PN: 502578-0400
- 24AWG 225mm, male-male Molex cables for power input
- Red Molex PN: 2157102125
- Black Molex PN: 2157101125
- See Figure 3. ELI50-CPW-PIC Power Input Cable for a visual reference.

Note: All ELI units operate from +12V DC so this is the recommended power supply input voltage for the entire Family. See section 9.0, Power Details, for more information.

USB Type A to Mini Type B Cable (for touch)
HDMI Cable (Type A Male)
Lengths for the USB and HDMI cables will be determined by the ELI mounting location and position in each user application.

Touchscreen Precaution

When the ELI50-CPW is powering up and initializing, please refrain from touching the front of the display or laying it face down on a surface. This can interfere with proper touchscreen initialization and may cause temporary issues with the touch screen operation. If this condition occurs, please reset, or power up the unit correctly and normal touchscreen operation will resume.

ESD Warning

Figure 1. Electrostatic Sensitive Device

Our ELI units are shipped in a protective anti-static package. Do not subject the module to high electrostatic potential. Exposure to high electrostatic potential may cause damage to the boards that will not be covered under warranty. General practice for working with static sensitive devices should be followed when working with this device.

Determining the Revision of your ELI

All ELI devices have a label placed on the board to identify the part number and revision of the unit. This label will help you quickly and correctly identify your ELI unit’s part number and revision number.

An example of an ELI label is shown below.

Determining the Revision of your ELI

Technical Specifications

Table 1. Technical Specifications

Screen Size (diagonal inches):	5.0
Display Technology:	a-Si TFT LCD
Resolution:	720 x 1280 (WXGA Portrait)
Brightness (nits typical):	300
Contrast Ratio (typical):	1000:1
Aspect Ratio:	Tall 9:16
Interface Input Mode:	HDMI
Colors:	16.7M (24 bit)
Horizontal Viewing Angle:	85/85°
Vertical Viewing Angle:	85/85°
Surface:	1.1 mm anti-fingerprint treated glass
Touch Screen:	Projected Capacitive
Touch Screen Interface (mA typical/max):	USB Device
Touch Panel Hardness:	6H
Active Area (in mm, W x H):	62.10 x 110.40
Response Time (ms):	30
Backlight:	12 LEDs
Backlight Life (K hours typical):	30
Backlight Power Consumption (W Typical):	Up to 61% of total
Operating Temperature:	-20° to 70° C
Storage Temperature:	-30° to 80° C
Input Voltage:	7.5 to 17 VDC +5%
Power Consumption (mA, typ/max):	150/250 @ 12V
USB Power Consumption (mA, typ/max):	< 1mA (touch is powered from 12V)
RoHS Compliant:	Yes
Dimensions (in mm W x H x D)	71.61 x 145.36 x 6.26
Mounting:	3M 300LSE tape or other 3M tape
Weight (grams)	94

Mechanical Details

A 2D Mechanical Drawing of the unit is available on our website under the Documentation tab.
https://www.teamfdi.com/product-details/eli50-cpw

3D Mechanical Models (in both STEP and EASM format) are available from our website after
completing a simple fillable NDA or Non-Disclosure Agreement.
https://www.teamfdi.com/mechanicalmodelrequest

Connectors

Power Details

A 12VDC +/- 5% power supply with a 2.0A output will power most any product from the ELI Family. This allows a common, off-the-shelf power supply such as the 1939-1462-ND to be used for quick demos or prototyping across the entire ELI Family. In general, any 12VDC power supply with a 2.1mm center positive connection will be acceptable if it can provide enough current to power the particular ELI unit being used.

On the ELI50-CPW, a Power Input Cable is available to help easily power the unit for prototyping and testing. This cable is available from DigiKey or Mouser under P/N ELI50-CPW-PIC or you can build your own using the information given below and in Section 2.0, Recommended Accessories (Purchased Separately).
Power Details

Power Details

When ready, connect power via the cable into the power connector (J6).

Pin	Value
1	Positive Power Input
2	Positive Power Input
3	Ground
4	Ground

Mating Connector Details for J6:

Manufacturer: Molex
Part Number: 502578-0400
Digi-Key Housing Link
Pre-terminated wires:
Digikey Red Link
Digikey Black Link

LED4 is the “Power” LED indicator that is on if the ELI is connected to a DC input voltage.

LED1 is the “LCD Power” indicator and LED3 is the “LCD 6V0 Power” Indicator. When DC input power is applied to the unit (via J6) and an HDMI input signal is present at J2, LED1 and LED3 will turn ON (LED1 is Orange and LED3 is Yellow). This LCD Power indicator only confirms that a DC input voltage and an HDMI signal are “present” at the ELI50-CPW inputs, but it does not mean that the input signals are necessarily valid or correct.

ELI50-CPW units can use power supplies ranging from +7.5 to +17.0 VDC + 5% (2.0A).

For volume production applications, the input power can be optimized for your ELI unit and lower capacity power supplies can be used.
To verify that the ELI50-CPW unit is correctly powered you may check the input voltage with a Fluke multi-meter or scope by probing test point TP5, shown below. Please verify that the input voltage is present, and within the +/- 5% tolerance and is free from excessive noise or AC ripple.

Note: If using an input that is within the 7.5V to 17.0V (+/- 5%) range of an ELI50-CPW, the voltage measured from TP5 will reflect the input voltage being utilized.
Power Details

Note on Proper Power Up Sequence:

The ELI50-CPW must be powered on before the SBC video source to ensure that the EDID information can be read properly to auto initialize the correct screen resolution and timing.

Some Single-Board Computers or other HDMI video sources might only read the EDID information when the video source is first powering up, so it is critical to make sure that the ELI50-CPW is powered up first to assure proper initialization of the video / screen resolution.

Touch Activity LED

ELI50-CPW has a Touchscreen Activity LED (LED2) located near the USB touch Interface (P2):
Touch Activity Led

This Green LED2 will stay on when the USB touch interface is connected and blink whenever any touchscreen input is detected, allowing for verification of the touch response.
Note that no touch response will be read if the HDMI is disconnected, or the ELI display is not detected by the video source.

Extended Display Information Data (EDID)

ELI uses Extended Display Identification Data (EDID) for automatic configuration with many operating systems. You can find out more on our website at http://www.teamfdi.com/edid/.

The ELI50-CPW must be powered on before the SBC video source to ensure that the EDID can be read properly.

Some Single-Board Computers or other HDMI video sources might only read the EDID information when the video source is first powering up, so it is critical to make sure that the ELI50-CPW is powered up first to assure proper initialization of the video / screen resolution.

PWM Control of Backlight

NOTE: For Rev 1.x units the PWM feature is not implemented but will be supported in future revisions.

J4 mating connector housing information:

Manufacturer: Hirose
Part Number: DF12-3S-1.25C
Digi-Key Link: https://www.digikey.com/products/en?keywords=H2180-ND
Pre-terminated wires https://www.digikey.com/en/products/filter/jumper-wires-pre-crimpedleads/453?s=N4IgjCBcoLQCxVAYygMwIYBsDOBTANCAG4B2aWehA9lANogDsAHAG wgC6hADgC5QggAvsKA

ELI provides an input, so an external processor or SBC can control the backlight to vary the display brightness or to reduce power consumption (the display backlight is typically one of the larger sources of power consumption in the unit). PWM dimming is an input with a 0 to 3.3 VDC range and the user should drive this with a push-pull type output or a suitable open collector output.

To control the display, backlight the user should connect an externally generated Pulse Width Modulated (PWM) signal to J4 pin 2 along with a common ground to J4 pin 3. The frequency range for this signal is from 5KHz to 100KHz. Each ELI unit’s display backlight properties will vary, so the user should test their version for an acceptable range of brightness control. For example, your 0 to 100% brightness range may be 40% to 90% of the PWM range. In certain installations, a series resistor on J4 pin 2 may be required to ensure a clean PWM signal is provided to the ELI. The suggested value for the resistor is 100ohms. See Figure 9 below, for example of connectivity. Actual testing in your installation may require this resistor to be changed, or possibly not required at all.

On the ELI unit, the PWM dimming signal is pulled up to LCD_VDD providing 100% backlight power when no PWM signal is applied at pin 2 of J4. If nothing is connected to J5 the ELI will drive the display at 100% brightness (default).

The LCD_VDD output at pin 1 of J4 is a 3.3VDC ± 5%. If the external system is capable of directly driving the PWM dimming signal at 3.3VDC, there is no need to connect pin 1 to the cable. ELI provides the 3.3 VDC signal, called LCD_VDD, for the external system in case this voltage is needed to generate the correct levels on the PWM dimming input.
Pwm Control Of Backlight

The ELI backlight can be easily controlled from a Raspberry Pi. See Figure 9 for a wiring diagram. Our software is available on the website at https://www.teamfdi.com/product-details/eli50-cpw#software or you may copy the code from here:

Pwm Control Of Backlight

As an example, the ELI backlight can also be controlled from a Renesas Synergy S7G2 wired as shown in Figure 11. The software for Synergy can be found on our website at https://www.teamfdi.com/product-details/eli50-cpw#software.