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Q: Why PS/2 of ET-1232F controller must connect with PC?
PS/2 is connected for the power of outer 5V of RS-232 controller, therefore it must connect, and this supplies the source for power.
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Q: Do controllers support USB 2.0?
The data amount of transmitting signal of the controller is very small, so has not used the specification of USB 2.0.
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Q: Design structure of LCD and the front case and what distance will be enough to
manage?
The ones that are used touch and accuse of the thickness of the panel and two-sided glue and thickness of the elastic washer to decide, generally speaking will have about 3.2mm of thickness to add ITO Film with the glass of the size thickest 2.8mm thickness of rule of our company, combine with about 0.5mm of two-sided glue, 1.5mm thick elastic washer, so it will be better to reserve the space of 5.2-5.5mm altogether.
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Q: How to choose touch screens? Resistive or Capacitive or SAW?
Generally, each touch panel has different function and usage, it depends on under what kind of environment usage and also the price will be different for each.
Price：Capacitive > SAW > Resistive
Transparency：Capacitive ≧ SAW > Resistive
Lifetime：Capacitive > SAW > Resistive
We would recommend you using resistive touch screen for personal and using Capacitive or SAW touch screen for public area.
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Q: What is FPC?
FPC (Flexible Printed Circuit Board) Usually used PET and copper to make up by the FCCL (Flexible Copper Clad Laminate), have flexibility of the rubber concurrently and process the convenience that take shape in the plastic twinkling of an eye, have cooperated and is fooled and made the copper in the conductor and brought up the FPC, regarding as using materials mainly of tail in the use of touch panel.
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Q: Is touch resolution related to screen resolution?
Touch resolution is determined by the touch screen controller, which is responsible for converting analog signals transmitted by the touch screen into digital signals accepted by the PC. Based on existing specifications for touch screen controllers, most products come in three different resolutions, namely: 1024*1024, 2048*2048 and 4096*4096. Touch resolution will affect the precision of touch input and the smoothness of lines and curves in illustrations. In other words, it is not directly related to screen resolution.
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