Interactive Tablet Brightness Zoning for Close-Range Touch
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Solution Overview
Problem
Large interactive tablets and displays cause visual fatigue and dazzling due to high brightness when used at short distances, especially during touch or writing operations, affecting user experience.
Innovation Solution
An intelligent interactive tablet divides the display screen into a first region for user interaction at short distances with lower brightness and a second region for viewing at longer distances with higher brightness, using a processor to control brightness adjustments and content copying between regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display screen brightness is increased to accommodate large numbers of viewers, then the visibility and viewing experience for distant audiences is improved, but the visual fatigue and dazzling effect increase when users control or write at short distance
Solution Approach 1:
The display screen is divided into multiple independent control regions (first region for short-distance interaction and second region for long-distance viewing). Each region can be controlled to display different brightness levels, allowing the first region to have lower brightness for comfortable touch interaction while the second region maintains higher brightness for distant viewing visibility.
Solution Approach 2:
Different regions of the display screen are assigned different brightness characteristics according to their specific usage scenarios. The first region (touch interaction area) uses lower brightness to reduce visual fatigue during close-up operation, while the second region (viewing area) uses higher brightness to ensure visibility for distant audiences, creating localized optimal viewing conditions.
2Object-affected harmful factors
If the display brightness is reduced to reduce visual fatigue during short-distance interaction, then user comfort is improved, but the visibility for distant viewers is compromised
Solution Approach 1:
The display is segmented into functionally distinct regions with independent brightness control. This allows the system to simultaneously serve both short-distance interaction needs (low brightness) and long-distance viewing needs (high brightness) without compromising either function.
Solution Approach 2:
Each display region is optimized with appropriate brightness levels for its intended purpose. The first region receives reduced brightness to minimize visual fatigue during close interaction, while the second region maintains elevated brightness to ensure clarity for distant viewers, achieving local optimization of display quality.
3Device complexity
If a single uniform brightness level is used across the entire display screen, then the control system is simple, but the user experience deteriorates due to inability to adapt to different viewing distances
Solution Approach 1:
The display control system is segmented into multiple region controllers that independently manage brightness levels for different areas. This segmentation enables the system to handle different viewing scenarios (short-distance interaction vs. long-distance viewing) simultaneously, significantly improving user experience despite the increased system complexity.
Solution Approach 2:
The brightness control system transitions from a static uniform brightness mode to a dynamic multi-region brightness control mode. The system can adaptively adjust brightness levels in real-time based on user interaction patterns and viewing distance detection, providing an intelligent and flexible user experience.
Data Source
AI summary
An intelligent interactive tablet and brightness adjustment method. The first region receives touch operation instructions from a user, it is able to reduce the brightness of the first region when the user operates the intelligent interactive tablet at a short distance, so as to facilitate the user to interact more comfortably and improve user's experience. A display screen, a touch component and a driving circuit are included, a first region and a second region are determined in a display region of the display screen, a position of the first region does not overlap that of the second region, the first region includes at least a part of contents in the display region, and the first region is configured to receive the touch operation instruction from the user; and a display brightness of the first region is controlled to be lower than that of the second region.