3M Touch Systems

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Integration Technical Training

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3M Touch Systems

© 3M 2007. All Rights Reserved 3M CONFIDENTIAL

Integration Guides

• Cleatek II Integration Guide

• Tough Touch II Integration Guide

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3M Touch Systems

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Integration Suggestions & Techniques

Refer to 3MTS ClearTek II Integration Guide part # 19-278 and Product Specification part # 23655 for updated & detailed information

Product Handling Product Inspection - <23” & =>23” Product Cleaning Prepare Touch Screen Mounting Touch Screen Routing of Touch Screen Cable Testing the Touch System 2D Bar Code Information

• Scanner & Program • 2D Bar Code Label

Serial Number Label

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3M Touch Systems

© 3M 2007. All Rights Reserved 3M CONFIDENTIAL

Product Handling

Never remove the touch screen from its package by gripping and pulling the flat cable. This may break the cable.

Handle the product with gloves to avoid leaving fingerprints or smudges. The transparency of the touch screen is critical.

Once removed from the original package, touch screens are not to be stacked. The edges may cause scratching.

Do not place heavy objects on the touch screen. Prevent assembly tools from coming into contact with the touch screen. Whenever possible, use plastic tools. Do not apply undue stress to the cable area

(this is the most fragile section). Blow any contaminants from the surface with a filtered de-ionized air source before

cleaning with a soft, lint-free cloth dampened with isopropyl alcohol. Ensure that there are no contaminants in the cloth.

Prevent any liquids from coming into contact with the edges of the touch screen.

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3M Touch Systems

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Product Inspection – Size and Types

Viewing Area Anomalies

All diameters refer to the smallest circle that will totally contain the anomaly.

A maximum of 5 anomalies within specification are allowed per touch screen.

Artifacts measuring less than 0.005 inches are not counted as anomalies.

All Measurements Are In Inches

Opaque Anomaly

Circular

0.040

Linear 0.25 X 0.010

Translucent Anomaly

Circular

0.070

Linear 1.0 X 0.010

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3M Touch Systems

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Product Inspection – Measurement Tool

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3M Touch Systems

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Product Inspection – Technique <23” diagonal

Light booth 30" D x 44" W x 24" H Flat black background and sides Two 20 watt 24" fluorescent tubes CTKII overlay (p/n 27316) to measure

visual anomalies Position front of touch screen 18" (45

cm) from your eye, and inspect for fifteen seconds for both reflection and transmission. Use one of the following patterns to aid the eye:

90 deg.

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3M Touch Systems

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Product Inspection – Technique =>23” diagonal

Flat LCD in the “ON” position Color display image running on LCD Position touch sensor in front of the LCD at a distance of 18" (45 cm) from your eye.

Inspect for fifteen seconds in transmission with colors red, green, blue & white in background. Use one of the following patterns to aid the eye:

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3M Touch Systems

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Product Cleaning

Typically, an isopropyl alcohol and water solution ratio of 50:50 is the best cleaning agent for your touch screen. You can also use straight isopropyl alcohol. In addition, 3M Touch Screen Cleaner CL680 has been tested and approved for this use. Be sure to follow solvent manufacturer's precautions and directions for use when using any solvents.

It is important to avoid using any corrosive chemicals on the touch screen. Do not use any vinegar‑based solutions.

Always dampen the cloth and then clean the screen. Be sure to spray the cleaning liquid onto the cloth, not the screen, so that drips do not seep inside the display or stain the bezel.

Apply the cleaner with a soft, lint-free cloth. Avoid using gritty cloths. Always handle the touch screen with care. Do not pull on or stress flex tail

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3M Touch Systems

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Prepare the Touch Screen

Strips of high-density foam mounting tape (3M Product Numbers 4956, 4956F, or 4979F) with adhesive on both sides should be used to attach the touch screen to the LCD metal frame. These strips should not form a full seal – allow for ventilation (1-2 mm gaps) at the corners as shown above. Because new LCDs run significantly hotter than their predecessors, you should allow air to escape to avoid damaging the LCD with temperature and pressure equalization issues.

Leave small space (1-2 mm) to enable ventilation Leave small

space (1-2 mm) to enable ventilation

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3M Touch Systems

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Mounting the Touch Screen

The touch screen must be mounted such that the spacing between the touch screen and LCD does not vary due to compression or expansion from touch forces or temperature changes. For optimal performance, we strongly recommend using 3M brand 4956, 4956F, or 4979F tape for this purpose. Failure to mount the touch screen in this fashion may result in reduced accuracy.

Tape extending beyond the touch screen edge may cause excessive stress on the tail connection. Apply the tape to the touch screen surface, rather then the LCD, to ensure proper alignment. DON’T:Mounting tape should not extend beyond the touch screen

DON’T:Mounting tape should not extend beyond the touch screen.

DO:Mounting tape should align with touch screen.

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3M Touch Systems

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Routing the Touch Screen Cable To minimize the risk of electromagnetic interference, never run the touch screen tail near

or over the LCD backlight inverter. Although the tail is shielded, the noise generated by an inverter is broadband and can contain frequencies close to the signal frequency.

The touch screen tail is not a handle. Never pick your touch screen up by the tail. It is an electrical connection and is not designed for high stress.

Do not place constant stress on the tail during handling or integration. Do not expose the tail to mechanical stresses because of the integration design. Provide adequate slack to ensure there is no straining on the tail. Avoid lateral pulls that may overstress the outermost electrical contacts on the glass.

Avoid creasing the tail within 0.5 inch (1.27 cm) of the strain relief. A soft bend is acceptable.

Avoid creasing the tail within 0.5 inch (1.27 cm) of the strain relief. A soft bend is acceptable.

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3M Touch Systems

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Routing the Touch Screen Cable (continued)

Always design your touch screen integration with the flex tail exiting from the top or sides of the display. Never design tail exits from the bottom as spills could accumulate in the tail attachment area and cause electrical shorting.

The touch screen tail is designed to be flexible, and it may be creased once in a single direction, in multiple locations along the tail and then secured in position with a light adhesive tape. Avoid angular creases (45°) to the tail directly in the area of the bond and tape strain relief.

The touch screen tail should not move freely after assembly. Apply tape or another light adhesive to secure the tail in a manner that does not apply stress to the tail.

Apply tape or other insulating material to sharp edges to protect the tail. Route the cable away from sharp edges whenever possible. If this cannot be avoided, secure the tail so it does not move.

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3M Touch Systems

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Testing the Touch System

Using Verifier.bat utility in congunction with MT7 driver

Once you have run the Verifier.bat program a control panel appears

The program should automatically find USB controllers.

Serial controllers – you must click the “Remove Serial” button prior to disconnecting the controller, and then click “Refresh Serial” button after reconnecting a new controller.

The “Calibrate” button performs a 3 point calibration

The “Test” button performs accuracy tests on the 4 corners to confirm touch screen operation

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3M Touch Systems

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2D Bar Code Information – Scanner & Program

USB Scanner 4800SR – Advance Data Capture Corp. Barcode.exe – see 3MTS FAE for program

• Run Barcode.exe• On the menu bar click “Scanner Port” – select USB • If the program doesn’t recognize the touch system, click “Touch Screen Port on

the Menu bar. Then select the port that your controller is attached to.• Once the program recognizes the touch controller, line up the scanner with the

2d Bar Code Label and press the scanner button. The system should display scan successful.

• You can verify the data was scanned properly. Click “Tools”: on the menu bar then “Block 2”. You can verify the data here from the 2D Bar Code Label. Ensure the Display Format is set to “Hex” in order to match the data that is on printed on the 2d bar code label. See example on next slide.

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2D Bar Code Information – Verify 2D Bar Code Label Data

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3M Touch Systems

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Serial Number Label Information