Curved Vehicle Cover Sensor Layout for Sensitivity Stability

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Solution Overview

Problem

Existing sensors face challenges when attached to curved surfaces, leading to sensitivity issues due to curvature-related problems.

Innovation Solution

An electronic device with a cover having regions of differing Gaussian curvatures and a stretchable sensing unit with varying projection areas, where the sensing elements are positioned to face the cover, allowing attachment to curved surfaces while maintaining sensitivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a sensor is attached to a curved surface, then the sensor can serve as vehicle sensors or wearing sensors, but folds and sensitivity problems occur

Engineering Contradiction:

Improveattachment to curved surfacesVSAvoidsensor sensitivity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies local quality by creating different Gaussian curvatures in different regions of the cover. The first region has a first Gaussian curvature and the second region has a second Gaussian curvature, allowing each region to be optimized for its specific function while maintaining overall curved surface attachment capability

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The cover is segmented into multiple regions with different curvature characteristics. The electronic elements are also segmented and disposed at different positions corresponding to different curvature regions, allowing the sensor to adapt to complex curved surfaces while maintaining sensitivity through localized optimization

Inventive Principle:

Principle #1Segmentation

2Ease of manufacture

If electronic elements are disposed on a substrate with uniform projection area, then manufacturing is simplified, but sensitivity varies on curved surfaces with different Gaussian curvatures

Engineering Contradiction:

Improveuniform element dispositionVSAvoidsensor sensitivity on curved surfaces

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent implements local quality by varying the projection areas of electronic elements based on their position and the local Gaussian curvature of the cover. Elements in regions with different curvatures have different projection areas, optimizing sensitivity for each local region while accounting for the curvature-induced geometric distortions

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12504839B2Electronic device

Publication Date: 2025.12.23 INNOLUX CORP

AI summary

An electronic device applied to a vehicle includes a cover and an electronic unit attached to the cover. The cover has a curved surface which has a first region with a first Gaussian curvature not equal to zero and a second region with a second Gaussian curvature, wherein the cover is a part of the vehicle, and an absolute value of the first Gaussian curvature is different from an absolute value of the second Gaussian curvature. The electronic unit includes a substrate, a first electronic element, and a second electronic element. The first electronic element is disposed between the first region of the curved surface and the substrate, the second electronic element is disposed between the second region of the curved surface and the substrate, and a projection area of the first electronic element is different from a projection area of the second electronic element.