Transparent Detachable Dial Knob for Vehicle Touchscreen Input

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Solution Overview

Problem

Conventional vehicle display systems face challenges in intuitively recognizing inputs due to the addition of electrical circuits and limitations in providing a complex physical interface for diverse functions, making it difficult to control various vehicle functions efficiently.

Innovation Solution

A detachable capacitive touch input device is introduced, comprising a touchscreen and a detachable input device such as a physical button layer or dial knob, which allows for capacitive touch input and includes a controller to determine the type of input device and execute corresponding programs, enhancing user interface and input recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a physical interface device with various input functions is equipped to control diversified vehicle functions, then the control capability is improved, but the device complexity increases

Engineering Contradiction:
Improvecontrol capabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The dial knob is designed to perform multiple functions: it can detect swipe gestures for navigation, rotational movements for volume control, and pressing actions for confirmation. This single multi-functional component replaces what would traditionally require multiple separate physical buttons and controls, thereby improving control capability while reducing device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The dial knob utilizes dynamic gestures including swiping in different directions, rotating clockwise or counterclockwise, and pressing. The controller dynamically interprets these different movement types to execute corresponding functions, allowing one static physical component to provide diverse control capabilities

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If control button mechanisms and switches are added to improve operability, then the input recognition is improved, but the visual clarity of the touchscreen is reduced

Engineering Contradiction:
Improveinput recognitionVSAvoidvisual clarity
Core Design Contradiction:
Ease of operationVSIllumination intensity

Solution Approach 1:

The dial knob is designed as a thin, transparent component that allows touchscreen light to pass through. Its transparent nature ensures that the underlying touchscreen display remains visible and clear, while the physical presence of the knob provides tactile feedback and improved input recognition for users

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The dial knob utilizes transparency to maintain visual clarity. By being transparent, it allows the touchscreen's illumination and display content to show through, preventing any obstruction of visual information while still providing physical interaction capability

Inventive Principle:
Principle #32Color changes

3Ease of manufacture

If a detachable input device is introduced to simplify design, then the manufacturing cost is reduced, but the input functionality is limited

Engineering Contradiction:
Improvemanufacturing costVSAvoidinput functionality
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The input device is designed as a detachable component that can be separated from the touchscreen. This segmentation allows for simpler, more cost-effective manufacturing of individual components, while the modular design enables flexibility in configuration and replacement

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The detachable dial knob provides dynamic input capabilities through multiple gesture types (swipe, rotate, press) that compensate for its simple physical structure. The controller interprets various movement patterns to execute diverse functions, ensuring rich input functionality despite the simplified hardware design

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution simplifies the display device design, reduces costs, and improves user interaction by allowing intuitive input recognition and execution of functions on a touchscreen, enhancing the operability of vehicle systems.

Implementation Method 1

a touchscreen configured to detect capacitive touch

Methodology Applied
Scientific EffectCapacitive touch: Capacitance

Data Source

PatentUS20240126400A1Display device using detachable input device and display control method using same
Publication Date: 2024.04.18 HYUNDAI MOBIS CO LTD
  • US20240126400A1 patent drawing
  • US20240126400A1 patent drawing
  • US20240126400A1 patent drawing

AI summary

Disclosed herein is a display device including a touchscreen configured to detect capacitive touch, a detachable input device configured to input the capacitive touch to the touchscreen, and at least one controller. The at least one controller may be configured to determine, when the detachable input device is disposed on the touchscreen, a type of the detachable input device disposed on the touchscreen, output a user interface to be output on the touchscreen based on the type of the detachable input device, and execute a program based on an operation of the detachable input device when the capacitive touch is input to the touchscreen from the detachable input device.