Display-Mounted Control Dial Sealing Against Liquid and Light Leakage
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Solution Overview
Problem
The arrangement of a rotary actuator on a transparent electronic display is vulnerable to penetration by liquids and foreign bodies, and suffers from unwanted light leakage due to its rotatable mounting, which can damage the actuator and compromise its function and position detection.
Innovation Solution
A peripheral wall is integrated around the transparent layer to protect the bearing means and prevent light leakage, featuring a ring-shaped elevation that forms an air gap with the actuating part to create a liquid-tight and light-tight seal, while allowing for visualization through strategically placed openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rotary actuator is arranged on the transparent layer of the electronic display, then the turntable can be assigned a variety of functions and functional information through flexible display options, but accidentally spilled liquids, deliberately applied cleaning agents, and foreign bodies can easily penetrate the rotary actuator, jeopardizing its function and position detection
Solution Approach 1:
The transparent layer is segmented by introducing a peripheral wall that divides the space around the rotary actuator. This wall creates separate zones: an inner region protecting the actuator and an outer region for display purposes, thereby maintaining versatility while providing protection against liquid penetration
Solution Approach 2:
The peripheral wall acts as an intermediary structure between the transparent layer and the rotary actuator. It provides a protective barrier that prevents direct contact between liquids/foreign bodies and the actuator, while still allowing the display to maintain its flexible information presentation capabilities
2Ease of operation
If the rotary actuator is arranged on the transparent layer, then the operating part provides haptic feedback and can be easily felt by the driver without visual contact, but undesired light emerges and undesired insight from or into the area of the electronic display is possible due to the rotatable mounting
Solution Approach 1:
The peripheral wall segments the light path by creating a physical barrier between the electronic display area and the external environment. This segmentation blocks undesired light leakage while preserving the haptic feedback functionality of the rotary actuator, as the wall does not interfere with the mechanical rotation or tactile properties
Solution Approach 2:
The peripheral wall introduces local quality changes by creating a light-blocking structure only in specific areas where light leakage occurs. The wall is positioned to block light paths while leaving other areas (such as the display surface and actuator operating surface) with their original optical and tactile properties intact
Data Source
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AI summary
The invention relates to an assembly having: a control dial (2); an electronic display (1), which comprises a transparent outer layer (4); wherein the control dial (2) has an actuation part (9) and means for rotational-position detection (3, 6), wherein the actuation part (9) is supported by means of support means (8) in such a way that the actuation part can be rotated about an axis of rotation and the control dial (9) is arranged on the transparent layer (4); and the assembly also has a peripheral wall (5) on the transparent layer (4), which peripheral wall surrounds at least the support means (8).