Stereoscopic Display Sub-pixel View Assignment
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Solution Overview
Problem
Existing display technologies face challenges in accurately determining corresponding views for pixels in multi-view displays, which affects the quality of stereoscopic images without the use of glasses, particularly in light field and super multi-view displays.
Innovation Solution
A method for displaying stereoscopic images on a display device that includes determining location parameters for sub-pixels and assigning displaying data based on the corresponding view, pitch, slant angle, and visual offset of an optical modulator to ensure accurate image presentation across different viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light field display uses optical modulator to direct images of different views to different directions, then viewers at different positions can watch different views and sense 3D visual effect, but it is difficult to determine the corresponding views for the pixels of the multi-view display
Solution Approach 1:
The patent applies parameter changes by systematically varying the location parameters (horizontal and vertical coordinates) of each sub-pixel, combined with the optical modulator parameters (pitch, slant angle, visual offset), to calculate the corresponding view. This mathematical transformation converts spatial position information into view identification, enabling accurate determination of which view each pixel should display.
Solution Approach 2:
The patent replaces complex optical measurement and calibration mechanisms with a computational approach. Instead of using physical markers or complex optical sensors to determine view correspondence, the system uses mathematical calculations based on sub-pixel positions and optical modulator parameters to directly compute the corresponding view, simplifying the system while maintaining precision.
2Adaptability or versatility
If multi-view display provides images of appropriate viewing angles to right eye and left eye, then viewer can sense 3D visual effect, but the transition between views may be abrupt affecting visual quality
Solution Approach 1:
The patent uses parameter changes to achieve smooth transitions by systematically varying the location parameters of sub-pixels across different views. By calculating the correspondence between sub-pixel positions and views using the optical modulator parameters, the system ensures continuous and smooth transitions between different viewing angles, eliminating abrupt changes in the stereoscopic image.
3Adaptability or versatility
If display device uses multiple sub-pixels per pixel for multi-view display, then different views can be presented, but the complexity of determining corresponding views increases
Solution Approach 1:
The patent applies segmentation by dividing each pixel into multiple sub-pixels with distinct location parameters. Each sub-pixel is independently assigned to a specific view based on its horizontal and vertical coordinates. This segmentation allows the complex multi-view determination problem to be broken down into simpler individual sub-pixel assignments, making the overall system more manageable and computationally efficient.
Data Source
AI summary
A display device includes a plurality of pixels and an optical modulator. A method for displaying a stereoscopic image on the display device includes obtaining image data of the stereoscopic image corresponding to K views, for each sub-pixel in each of the pixels, determining location parameters of the sub-pixel according to a first coordinate value of the sub-pixel along a first direction, a first number of sub-pixels along the first direction in each pixel, a second coordinate value of the sub-pixel along a second direction, and a second number of sub-pixels along the second direction in each pixel, determining a corresponding view corresponding to the sub-pixel according to a pitch and a slant angle of the optical modulator, the location parameters, and a visual offset caused by the optical modulator, and assigning displaying data to the sub-pixel according to the corresponding view and the image data.