9. DEVICE FRONT
9.4 Touchscreen
The Vision 307 device is equipped with a projective capacitive touchscreen designed to be used as an input
device for the application running on the device. It can be operated with bare fingers and gloves. The touch-
screen supports multi-touch gestures with two fingers.
Water drops do not trigger touch functions. The touchscreen also supports palm suppression (the palm on
the touchscreen does not lead to erratic behavior).
Parameter Note Min Unit
Accuracy for 10 mm target
≤ 2 mm away from edge of active area ±1.5 mm
> 2 mm away from edge of active area ±1 mm
Reporting rate for single touch 1 >100 Hz
Response time
from idle mode 50 ms
from active mode 25 ms
Pinch separation
in X and Y direction diagonal 11 mm
diagonal 15 mm
Note 1 Depending on configuration and noise conditions.
9.5 Optical bonding
The protection glass, the touch sensor glass, and the LCD display are optically bonded (the small gap be-
tween these elements is filled with an optical-grade transparent filling material). The protection glass is
anti-glare treated.
Optical bonding reduces reflections in the optical system and increases the contrast of the display. This
improves the readability of the display, especially in very bright environments. Fogging (dew condensation)
is prevented by optical bonding as no air gap is present.
© TTControl GmbH 2024. All rights reserved.
Proprietary Information
39
Document Number:
D-156-G-02-003
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