What is AMT's MOQ?

Minimum order is 500pcs, with support for 2 pilot runs under 500pcs.

What is AMT’s warranty period?

4/8 wire, Low Reflective touch screen 1 year

5 wire touch screen 2 years

LCD monitor 1 year

Controller IC 2 years

Control board 2 years

Does a change to the tail location require new tooling?

Yes, it is a new design for touch screen.

What are AMT’s quality recommendations?

AMT provides maximum reliability and product lifetime, as well as the benefits of strong R&D and pre/after sales service.

What is the new (custom) item generation procedure?

LCD or current touch screen drawings are submitted for evaluation. Once is has been determined that no stanrdard (in stock) items match, a customized part number and initial quotation for sample and lead time are generated.

Does AMT provide integration support?

Yes, please refer to our Design Services section.

What are the packaging details?

As touch screen size and tail design are all different, therefore uses different packing box respectively. AMT provide inner and outer carton to secure each touch screen for shipment. Please contact us, if you have any special package demand.

What is the best way to optimize touch screen design?

Touch screen design can be optimized by adopting an AMT standard tail length design, utilizing 4-wire or 8-wire constructions, which are more cost-effective than 5-wire, 3-layer construction, film on glass, and choosing from standard in-stock 0.7mm, 1.1mm, 1.8mm, or 2.8mm ITO glass. Chemically strengthened glass of 1.1mm and 1.8mm are standard.

What are AMT’s RMA procedures?

Customers inform AMT Customer Service of defective item(s).
Customer Service provides RMA request form with RMA number to customer to fill in then instructs return of defective item(s).
Customer Service receives item(s) and processes RMA form to inform sales and customer thereof.
Customer Service examines items, reports to customer, and returns referral and new item(s).

Are AMT devices RoHS compliant?

Yes. Please go to AMT website frontpage < About AMT < Standards and Compliance.

Are AMT items compatible with 3M and ELO?

Yes. AMT provides many standard touch screens compatible with 3M 4- and 8-wire touch screens, as well as ELO 5-wire touch screen, please contact to Sales for detailed information.

What are AMT’s product benefits? 

- Wide variety of type, including Analog 4/5/8 wire, Matrix, LR, High light transmission,   capacitive

- Sizes from 3” to 21”

- Varied length tails and terminations, incl. ZIF, AMP, AMPC and BERG

- Optional front/rear Gasket/poron for additional service

- Total solution with control board and driver

What touch screen constructions Does AMT offer?

Conventionally, AMT utilizes Film-on-glass construction, but in the event of customer request, film/film/PC is also available.

Why is FPC tail preferred? 

FPC tail is high in adhesion force, flexibility with small bend radius and available in different tail length, pitch, termination and customized shapes, e.g. L or U.

Is AMT ISO certified?

Yes, AMT factory operations are ISO 9001-2008 certified.

Does AMT meet UL certification?

AMT products are UL 60950 certified and UL code E331240.

Which control boards and drivers are compatible with AMT touch screens?

PenMount control boards and drivers are available to fit all AMT touch screens.

Can AMP compatible connector change to the connector with latch?

Yes. Please contact to our sales people.

What is the difference between integral tail and FPC tail?

Integral tail is the same material from the ITO film, it has higher bend radius than FPC tail. FPC tail is using flexible printed circuit with smaller bend radius.

What applications are suited for analog and matrix touch screens?

Matrix touch screen is a good choice for fixed position with only on/off function. Otherwise, analog touch screens are preferred.

Do matrix touch screens require IC/board control?

No, since matrix touch screens only have a fixed positioned signal, requiring multiplexer to decode the touch signal.

Does AMT keep any standard matrix touch screens in stock?

No.

What is the largest size AMT offers?

22”

Can standard in-stock AMT screens be adapted to LR function?

Yes.

Does AMT provide EMI-shielded touch screens?

Yes.

Besides environmental testing, what other testing AMT does?

- Surface chemical resistance

- Linearity test

- Drop ball test

- Activation force

- Pen Sliding test

- Loop resistance

Do touch screens have MTBF?

Generally, MTBF applies to finish product but for components part, it usually applies MTTF. The MTTF for AMT 4/8 wire touch screen is 96000hrs and AMT 5 wire touch screen is 280000hrs.

Why do bulges appear on touch screens?

The phenomenon is referred to as “Pillowing”. The cause may be excess air between PET film and glass or improper lamination of the touch screen.

Are AMT touch screens compatible with Vista OS and pen input thereof?

Yes.

How many design philosophy of low reflective touch screen available?

AMT offers 2 types of low reflective touch screens, LN (Linear Polarizer) and CR (Circular Polarizer). The main difference is in reflective rate specification, LN type touch screen has reflective rate of around 7-10%, and circular polarizer type touch screen has a reflective rate of around 1.5%.

What are the differences of LN and CR type low reflective touch screen in theory?

LN touch screen uses a linear polarizer design, and CR touch screen utilizes a circular polarizer with 1/4λ retarder film to deflect and prevent light from reflecting.

What is AMT’s low reflective (LR) touch screen size available?

The LR type touch screen size is able to make from 3” to 15”.  It is ready for 4-, 5- and 8-wire design.

How to identify the LCD absorption axis? And how many type of LCD absorption axis?

Please check to LCD vendors.  Or AMT will supply the LAAT(LCD absorption axis tester) sample for measuring your LCD absorption axis. It is an important to make sure the LCD absorption axis before you order the LR type touch screen. Please contact to us for the details and LAAT sample. 
In general, most of the TFT LCD absorption axis is 45˚ or 135˚, but there is new LCD with 0˚ absorption axis. For the color STN LCD, there is no standard absorption axis.

Can AMT supply the low reflective touch without the rear side 1/4 retarder film?

Yes, if the LR touch screen does not laminate a rear side 1/4 lambda retarder film that ha to be laminated in front side of TFT LCD.

Does AMT provide the standard stock item of LR touch screen ?

Yes, we have several types ready in our standard stock list.

What is the warranty of AMT’s LR touch screen?

One year.

How to clean the surface of LR touch screen?

Please visit the documents section for details or contact us for the correct cleaning methods.

Can LR touch products have EMI shielding in rear side?

Yes.

How many touch areas and touches are available for a Multi-Finger touch screen?

At present, the MF touch screen is designed to have 12 touch zones in one touch screen. Each touch zone supports only one touch at a time. 

Does AMT MF touch screen own its patent?

Yes, AMT MF touch screen applies several patents in Taiwan and other countries.

What is the MF touch screen size?

The MF touch screen size is from 3” to 22”, touch zones number is depended on requirement, it could be 2 touch zones to 12 touch zones in one touch screen.

Can the touch zones be different size and different shape?

Yes, touch zone size or shape could be different, each touch zone is suggested to contact to the boarder area.

What is the technology of MF touch screen?

MF touch screen is designed to put X- and Y-axis circuit on the bottom layer. The top layer is separated to have multiple areas to allow multiple touches.

Is all the touch screen size is able to design to be MF touch screen ?

Yes.

What is the warranty of AMT’s MF touch screen?

One year.

Will MF touch screen has low reflective type or GFG type?

Yes.

Is the MF touch controller special?

PenMount 6250 touch control board is designed for MF touch. It supports RS-232 and USB interface, from 2 to 16 touch zones.

Why do we use MF touch?

MF touch is for the purpose of “Confirmation” and “Safety”, just like industry field, it requires more protection of operator’s safety and confirms operator’s next action correctly.

Can MF touch solution meet Window 7 certification?

MF touch is designed for the confirmation purpose base on resistive technology. MF touch technology can simultaneously touch different designated areas but does not conform to some of Win 7 requirements.

What are the advantages of GFG (glass-film-glass) touch screen?

The top surface is using thin glass for the GFG touch screen, the advantages are anti-scratch, easy clean and anti-chemical.

How many kind of top glass thickness for GFG touch screen available?

There are 2 kinds of thin glass available, one is 0.1mm thickness glass which surface is clear type, and another is 0.2mm thin glass that surface finish is able to have clear type or anti-glare type.

What is AMT’s GFG touch screen size available?

The GFG touch screen size is able to make from 3” to 19” for clear type.  And it is able to produce size up to 17” for anti-glare type. It is ready for 4-, 5- and 8-wire design.

What is the activation force for the GFG touch screen?

Due to it is laminated with a thin glass on top of the touch screen, the activation will be a little bit higher than the standard one. AMT GFG touch screen activation force is less than 1N.

Why is there a black color mylar on the top of GFG touch screen?

There is 0.1mm thick close cell mylar around the perimeter of the GFG touch screen. The function of this mylar is to protect the edge of thin glass from customer front bezel. Please contact us, if you do not require this mylar material.

Does AMT provide the standard stock item of GFG touch screen?

Yes, we have several types ready in our standard stock list

What is the warranty of AMT’s GFG touch screen?

One year.

What is the hardness of the GFG touch screen?

The top surface is a thin glass, the clear surface finish glass hardness is higher than Mohs 5.   If the GFG product is anti-glare or anti-reflective type, there will be additional coating on top of the thin glass, the hardness is higher than 7H.

Is it available for the GFG touch screen and adding the low reflective feature?

Yes, this product is named GFG LR touch screen, the reflective rate is also less than 1.5.

Can GFG product with EMI shielding in rear side?

Yes.

Can the top thin glass be the chemical strengthened type?

Yes, it is available for 0.2mm thickness glass.

Which market segment or application is good for GFG touch screen?

The GFG touch screen is good for the application that requests high operation temperature like the industry field, anti-scratch application like public application or ticketing system or easy cleanness product for food application or chemical or solvent utilization.

Can GFG touch screen be operated by stylus, what is the affordable force if using stylus input?

It is ok for user to input by stylus if the GFG touch screen top glass is using 0.2mm chemical strengthened glass. We do not suggest user to input the GFG by stylus If the GFG top glass is selected by 0.1mm glass or 0.2mm glass without chemical strengthened treatment, it will be easily broken if operate by stylus.  For example, the 0.1mm top thin glass will be broken if the activation force higher is 200g when input by stylus.

For 0.2mm thin glass, the affordable input force is 1000g without thin glass broken if input by stylus.

What is the operating temperature of GFG touch screen?

The operating temperature of GFG touch screen is -30˚C to 80˚C, and storage temperature is -40˚C to 85˚C.

What are the GFG critical areas?

There are 2 critical areas for GFG touch screen. The first is the edge of the thin glass, AMT will protect the edge by sticking one black color mylar.  The second critical area is at the view area of GFG touch screen, it could be damage by stylus if the force is over the specification because of the gap of double side adhesive of touch screen.

How to design a Touch Window touch screen?

You have to confirm the overall size of the Touch Window touch screen you want, and clear indication of tail side and tail assembly way to the PCB, because Touch Window touch screen does not have display front bezel to cover the touch screen, the only material is the décor film on the top of the touch screen.

How many kinds of design way of Touch Window touch screen?

The product is a really touch screen with imagination feeling product.  The top Décor film is able to design by many ways that are depended on customer want. The key is the tail location and bending to rear side method. There are several ways for tail to bend to the back of LCD, the 1st is by drill a hole on glass, the 2nd is by notch on the edge of glass and others. The edges and corners are able to be seamed or curve depended on the requirement, please contact us for the design details

What is the Touch Window touch screen size able to manufacture?

At present, the maximum size of Touch Window size is 510x400 mm, it is depended on customer design. If you have the Touch Window size approach to the said size, please contact us for discussion.

Will the activation force increased for the Touch Window touch screen?

Yes, but it impacts not much.

How many color of the décor film is able to print?

One color to several colors.

Will AMT design the standard stock item of Touch Window touch screen ?

No.

What is the warranty of AMT’s GFG touch screen?

One year.

What is the hardness of the Touch Window touch screen?

The top surface is a décor film, the hardness is 3H.

Is it able to design a low reflective type touch screen with Touch Window idea?

Yes, AMT is working on this concept.  Please contact us for AMT plan.

Can Touch Window touch screen design with EMI shielding in rear side?

Yes, it can, please contact us for the EMI shielding specification