Figure 1: Touch-lens in integrated center control panel
Display interface requirement considerations for the touch-lens include functional, aesthetics, and performance & conformance categories. Figure 2
shows a representation of these interface requirements (green), enablers (yellow), and the key component (pink) of the system. Addressing all of these considerations within the touch-lens component for automotive use significantly shrinks the solution space due to competing requirements that can be grouped in the following categories:
– multi-touch sensing, touch with press-for-intent, force feedback haptics, and spatial gesture recognition
– dead-front look, minimize fingerprints, seamless front surface, and curved surface
• Performance & Conformance
– display visibility, acceptable birefringence, head impact regulatory compliance, and environmental performance.
Figure 2: Touch-lens system interface diagramClick on image to enlarge