FST Series Product Specifications
5-5. Mounting Notes
§Gap between the Bezel and Touchscreen
A gap of approximately 0.5mm is needed between the bezel and the top electrode. It may cause unexpected input if the gap is too narrow.
§Cushion
If a cushion is used between the bezel and the top electrode, the cushion must be free enough to absorb the expansion and contraction difference between the bezel and the top electrode. If the cushion is squashed too hard, the expansion and the contraction difference may cause the distortion to the top electrode.
The cushion must be positioned within the insulation area.
§Tolerance
There is a tolerance of 0.2 to 0.3mm for the dimensions of the touchscreen and the tail. A gap must be made to absorb the tolerance in the case and the connector.
§Tail
The tail must not be forcibly stressed or bent too hard to avoid the conduction in the insulated area and wire breaking.
§Mounting
Touchscreen must be held from the bottom such as the structure gluing the touchscreen onto the display. If the touchscreen is glued to the bezel, the adhesion between the top and bottom electrode is stressed and may come off.
§Forbidden Area
The area within 2mm from the insulation area is structurally week for the pressure, espcially for pen use. The film may be forcibly bent and may cause defection. This area must be protected by the bezel and input must be avoided.
§Air Vent
Most of the touchscreens have the air vent to equalize the inside air pressure to the outside one. The air vent must be open and liquid contact must be avoided as the liquid may be absorbed if the lquid is accumilated near the air vent. The top electlode must not be swelled by the air pressure from inside of the case.
9
Top Electrode | 0.5mm |
Bezel |
|
Bezel
Cushion
Insulation Area | Top Electrode |
0.2 - 0.3mm Case
Tail
Bezel
Display
Bezel
Forbidden Area
Rev. 2.0 ©2005 - 2006 DMC Co., Ltd.
