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Low Reflective

1
Please explain the design philosophy of low reflective touch screens.

AMT utilizes circular polarizers (CR) with a reflective rate of approximately 1.5% for LR (Low Reflective) touchscreens.

2
What sizes of AMT’s low reflective (LR) touch screen are available?

The sizes of available LR touch screens are from 3” to 19” with 4-, 5- and 8-wire designs.

3
How is the LCD absorption axis identified? How many types of LCD absorption axes are there?

Please check with LCD vendors.  AMT can also supply a sample LAAT (LCD absorption axis tester) for measuring your LCD absorption axis. It is important to confirm the LCD absorption axis before you order a LR touch screen.

Please contact us for details and sample LAAT.

In general, most TFT LCD absorption axes are 45˚ or 135˚ but there are new LCDs with 0˚ absorption axes. For color STN LCDs, there is no standard absorption axis.

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

Yes. When required, the 1/4 retarder film can be bonded to the front of the LCD.  This process must be completed by manufacturers and is not meant for end users.

5
Does AMT stock standard LR touch screens models?

Yes.

6
What is the warranty period of AMT’s LR touch screens?

One year.

7
How do you clean the surface of LR touch screens?

Please visit the “Support” section for details or contact us for the correct cleaning methods.

8
Can EMI shielding be added to the rear side of LR touch products?

Yes.