Flat Display Image Compensation for Equal Visual Angles
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Solution Overview
Problem
Flat displays suffer from inferior display effects due to varying visual angles for line segments viewed from different positions, which are not equal, unlike curved-surface displays, and have high manufacturing costs due to complex production processes.
Innovation Solution
An image displaying method and system that divides images into sub-images along specific directions, calculates compensation ratios based on viewer position and virtual section line segment parameters, and compensates each sub-image to ensure equal visual angles, thereby replicating the display effect of curved-surface displays using flat displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a curved-surface display is used, then visual angles for objects of unit length are identical for viewers at proper positions, but manufacturing cost is rather expensive
Solution Approach 1:
The image is divided into multiple sub-images along a first direction and multiple sub-images along a second direction, creating a grid of sub-images. Each sub-image is then compensated independently based on its position, allowing the flat display to simulate curved surface visual effects through localized image adjustments
Solution Approach 2:
Different compensation ratios are applied to different sub-images based on their specific positions relative to the viewer. The compensation ratio for each sub-image is calculated according to the viewer's position information and the sub-image's coordinates, creating localized adjustments that collectively simulate curved surface geometry
Solution Approach 3:
The patent creates a virtual curved surface display effect on a flat physical display by calculating compensation ratios that replicate the visual angle characteristics of a curved surface. The flat display copies the visual experience of a curved surface through mathematical transformation of the displayed image
2Ease of manufacture
If a flat display is used, then manufacturing cost is reduced, but visual angles for line segments of the same length are different for viewers at different positions
Solution Approach 1:
The image compensation is performed in advance before display, with compensation ratios pre-calculated based on expected viewer positions. The position detector obtains viewer position information, and the image is divided and compensated along both first and second directions before being sent to the flat display, eliminating the need for real-time adjustment during viewing
Solution Approach 2:
The system dynamically adapts the displayed image based on the viewer's position. The position detector continuously monitors viewer location, and the compensation ratios are adjusted accordingly by dividing the image into sub-images and applying position-specific transformations, making the flat display visually adaptive to different viewing conditions
Data Source
AI summary
An image displaying method and system. The method includes: obtaining an image to be displayed, and dividing equally the image to be displayed into a plurality of first sub-images along a first direction; obtaining position information of a view point relative to the flat display and parameter information of a first virtual section line segment of the flat display; calculating a compensation ratio along the first direction for each first sub-image of the image to be displayed, according to the position information of the view point relative to the flat display and the parameter information of the first virtual section line segment; and compensating each first sub-image of the image along the first direction, and displaying the compensated first sub-image on the flat display, so that visual angles at the view point with respect to the compensated first sub-images are the same.