Parallax-Barrier Touchpad for 3D Guidance in Low Light
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Solution Overview
Problem
Current touchpads lack intuitive operational functions and are not optimized for use in low-illumination environments, limiting their usability and adaptability.
Innovation Solution
An illuminated touchpad incorporating a Parallax-Barrier light source module that produces stereoscopic images through a Parallax-Barrier pattern, allowing users to operate intuitively even in low-light conditions by presenting operable actions or applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional touchpad is used, then the device structure remains simple, but the touchpad cannot provide intuitive operational functions and is not suitable for low-illumination environments
Solution Approach 1:
The patent combines the light source module with the touchpad structure, integrating illumination functionality into the existing device. The light source module includes a light source, light guide layer, and optical pattern generation layer that work together within the touchpad assembly to provide both illumination and pattern display functions simultaneously.
Solution Approach 2:
The light source module serves multiple functions: it provides illumination for low-light environments, generates optical patterns for intuitive operation guidance, and creates stereoscopic images for enhanced user interaction. This multi-functional design allows a single component to address multiple user needs without requiring separate systems.
2Ease of operation
If application patterns are set on the touchpad, then operational convenience is improved, but the touchpad still lacks intuitive operation guidance in low-light conditions
Solution Approach 1:
The optical pattern generation layer uses different optical patterns that can be illuminated to provide visual guidance. The light guide layer transmits light through patterns of different intensities and distributions, creating visible guidance patterns that help users understand operational states and touch targets in low-light conditions.
Solution Approach 2:
The light guide layer acts as an intermediary between the light source and the display surface. It distributes and modulates the light to create illumination patterns that guide user interaction, serving as a mediator that converts raw light into informative visual patterns for intuitive operation.
3Adaptability or versatility
If a Parallax-Barrier light source module is added to produce stereoscopic images, then user adaptability and intuitive operation are enhanced, but the device complexity increases
Solution Approach 1:
The light source module is segmented into distinct functional layers: the light source layer, the light guide layer, and the optical pattern generation layer. This segmentation allows each layer to be optimized for its specific function while working together as an integrated system, making the complex functionality more manageable and implementable.
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
Enhances user adaptability by enabling operation in low-illumination environments and providing intuitive interaction through stereoscopic images, improving usability and functionality.
Implementation Method 1
The Parallax-Barrier light source module has a Parallax-Barrier pattern or is used to produce the Parallax-Barrier pattern. By the Parallax-Barrier pattern, lights of the illuminated pattern pass through the touch module and the protection layer to form multiple stereoscopic images.
Data Source
AI summary
Disclosed are an illuminated touchpad including a protection layer, a touch module, and a Parallax-Barrier light source module. The touch module is disposed between the protection layer and the Parallax-Barrier light source module. The Parallax-Barrier light source module has a Parallax-Barrier pattern or is used to produce the Parallax-Barrier pattern. The Parallax-Barrier light source module further has multiple patterns and produces multiple illuminated patterns by the patterns, or the Parallax-Barrier light source module directly produces the illuminated patterns. By the Parallax-Barrier pattern, lights of the illuminated patterns pass through the touch module and the protection layer to form multiple stereoscopic images.