Multi-colored front light for e-readers
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Solution Overview
Problem
E-readers face challenges in dynamically controlling illumination to enhance reading experiences, as existing devices lack programmable lighting solutions that can adapt to content, environmental conditions, and user preferences independently of the displayed content.
Innovation Solution
A computing device with a programmatically controlled front light system that includes a multi-colored set of illumination elements, capable of changing color, luminosity, and lighting effects in response to pre-determined triggers, allowing for adaptive illumination that can be synchronized with e-book content, user inputs, and environmental sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed single-color illumination system is used, then the device complexity is reduced, but the adaptability to different reading conditions and content types is limited
Solution Approach 1:
The patent combines multiple illumination elements (warm white LED, cool white LED, and ambient light sensor) into a single integrated illumination system. This merging allows the system to provide both color temperature adjustment and automatic brightness control, achieving high adaptability while maintaining relatively simple device structure.
Solution Approach 2:
The illumination system is designed to serve multiple functions: providing reading light, adjusting color temperature based on content type, and adapting to ambient lighting conditions. The same illumination elements are used for both warmth/coolness adjustment and brightness control, making the system multi-functional without requiring separate components for each function.
2Adaptability or versatility
If multiple illumination elements are used to provide different colors and temperatures, then the adaptability to content and environment is improved, but the device complexity increases
Solution Approach 1:
The patent applies different color temperatures to different reading scenarios: warm white (2000K-3000K) for nighttime or relaxing content, and cool white (6000K-10000K) for daytime or focused reading tasks. Each illumination element is optimized for its specific function, and the system selects the appropriate combination based on the reading context, achieving local optimization of illumination quality.
Solution Approach 2:
The ambient light sensor continuously monitors the surrounding lighting conditions and provides feedback to the control system. Based on this feedback, the system automatically adjusts the illumination brightness and color temperature. This closed-loop feedback mechanism enables automatic adaptation to environmental changes without requiring complex manual controls.
3Ease of operation
If the illumination is synchronized with e-book content and user inputs, then the reading experience is enhanced, but the processing requirements and device complexity increase
Solution Approach 1:
The system pre-defines illumination profiles for different content types and reading scenarios. When a user opens an e-book, the system automatically detects the content type (e.g., novel, textbook, news) and applies the corresponding pre-configured illumination settings. This preliminary preparation of illumination profiles allows for rapid response to user needs without requiring complex real-time analysis or manual adjustment.
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
The solution enables an enhanced reading experience by providing customizable and context-aware illumination, improving readability in various conditions and enhancing the overall user interface with ambience and status information, independent of the content displayed on the screen.
Implementation Method 1
A computing device with a programmatically controlled front light system that includes a multi-colored set of illumination elements
Data Source
AI summary
A computing device that includes a programmatically controlled front light. The front light cast light onto a display surface and/or other region of the computing device, for purpose of providing illumination and/or lighting effect.