3D Display Optimal Viewing Distance Measurement
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Solution Overview
Problem
Current 3D display technologies require users to wear special glasses, which can be inconvenient, especially for those with vision corrections, and result in poor image quality if the optimal viewing distance is not maintained, leading to uncomfortable viewing experiences.
Innovation Solution
A measurement method and device that detect light radiation amounts from different viewing angles to determine the optimal viewing distance by identifying the distance at which light radiation is most uniform across the display area, ensuring clear and comfortable 3D image viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a naked-eye 3D display is used to eliminate the need for special glasses, then user convenience is improved, but image quality and viewing comfort deteriorate when the optimal viewing distance is not maintained
Solution Approach 1:
The patent applies preliminary action by pre-determining the optimal viewing distance through light radiation measurement before actual use. The measurement device detects light radiation amounts from different positions and viewing angles to identify the distance where light radiation is most uniform, establishing this distance as the optimal viewing distance. This preliminary determination ensures that when users view the 3D display, they are guided to the correct distance, thereby maintaining high image quality and viewing comfort while enjoying the convenience of naked-eye 3D viewing.
2Ease of operation
If the optimal viewing distance is not correctly determined, then user comfort deteriorates due to blurred images and eye strain, but measurement complexity increases
Solution Approach 1:
The patent applies self-service by designing a measurement device that autonomously determines the optimal viewing distance without requiring complex manual procedures. The device automatically moves the light detector to different positions and viewing angles, collects light radiation data, and processes this information to identify the optimal distance. This automated self-service approach simplifies the measurement process, making it accessible and reducing the complexity burden on users while ensuring accurate determination of the optimal viewing distance for enhanced comfort.
3Measurement precision
If light radiation uniformity is used as the measurement criterion, then measurement precision is improved, but the complexity of the measurement process increases
Solution Approach 1:
The patent applies feedback by using light radiation uniformity as a measurable criterion that provides direct feedback on viewing distance quality. The measurement device detects light radiation amounts at multiple positions and viewing angles, compares these measurements to determine uniformity, and uses this feedback to identify the optimal viewing distance. This feedback mechanism ensures high measurement precision because light radiation uniformity directly correlates with optimal viewing conditions, while the automated feedback loop simplifies the overall process by providing clear, objective data for determination.
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 method and device accurately determine the optimal viewing distance, providing a clear and high-quality 3D image experience by ensuring uniform light radiation, thus enhancing user comfort and image quality.
Implementation Method 1
Light radiation amounts of a first position in the at least a part of the display area of the 3D display are detected with a light detector from different viewing angles
Data Source
AI summary
A measurement method and a measurement device are disclosed. The measurement method is adapted to a 3D display capable of producing a plurality of viewing zones, which includes following steps. At least a part of a display area of the 3D display displays an image of one of the viewing zones. Light radiation amounts of a first position of the 3D display are detected with a light detector from different viewing angles. A viewing angle with a local maximum light radiation amount is taken as a reference viewing angle, a distance between the light detector and the 3D display along the reference viewing angle is changed, and light radiation amounts of a plurality of different second positions of the 3D display are detected in different distances. A distance at which light radiation amounts of the second positions are most uniform is taken as the optimal viewing distance.