Dynamic Image Scaling for Reducing Eye Rotation in Large Displays
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Solution Overview
Problem
Large TVs often cause visual fatigue due to inappropriate viewing distances and angles, leading to discomfort during viewing experiences, especially when users are too close or positioned at an angle that requires excessive eye rotation.
Innovation Solution
A method and device that adjust the size and position of the displayed image based on the user's distance and orientation relative to the screen, using distance monitoring and wireless signal intensity to determine optimal image scaling and placement, thereby reducing eye strain and improving viewing comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the TV size is increased to over 70 inches, then the viewing experience is improved, but the required viewing distance increases to 7-8m which limits user flexibility
Solution Approach 1:
The patent applies dynamics by making the image size adjustable in real-time based on user distance. The system dynamically changes the display parameters (image height and width) according to the detected user position, allowing the TV to adapt between close-up and distant viewing modes. This resolves the contradiction by enabling large screen benefits at flexible distances through dynamic parameter adjustment.
2Reliability
If the user lies at the head of the bed to watch TV, then the viewing distance is optimal, but the user cannot watch TV when lying at the tail or sitting at the center of the bed
Solution Approach 1:
The patent applies local quality by adjusting the image display parameters according to the user's specific position. Different regions of the viewing area correspond to different image scaling factors. When the user is detected at various positions (head, center, or tail of bed), the system locally adapts the image size and position to maintain optimal viewing conditions for each location.
3Ease of operation
If the user watches TV from a close distance, then viewing flexibility is improved, but the angle of view for eyes to rotate becomes too big causing visual fatigue
Solution Approach 1:
The patent applies feedback by using the distance detection module to continuously monitor user position and adjusting the image parameters accordingly. The system receives feedback from the detected user distance and angle, then automatically adjusts the image height and width to reduce the viewing angle and minimize eye rotation requirements, thereby preventing visual fatigue while maintaining viewing flexibility.
Data Source
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AI summary
The present disclosure relates to a method and a device for adjusting and displaying an image. The method includes: monitoring (S11) the distance between a user in front of a display screen and the display screen; when monitoring that a distance between the user and the display screen is less than a preset threshold, determining (S12) an adjusted size of an image on the display screen according to the distance, or determining (S13) an adjusted size of an image on the display screen according to a parameter preset by the user; and displaying (S 14) the image on the display screen according to the adjusted size.