Stereoscopic Display Color Correction for Crosstalk Reduction
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Solution Overview
Problem
Crosstalk occurs between left-eye and right-eye images in stereoscopic image display due to differences in grayscale and liquid crystal response speeds, deteriorating the display quality in LCD apparatuses using progressive scan methods.
Innovation Solution
A method involving a display apparatus that uses lights of different wavelengths for left-eye and right-eye images, with a color data correcting unit adjusting the color coordinates of the images to match, and synchronizing the shutter glasses with the provided color correcting data to prevent crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If progressive scan method is used to display stereoscopic images, then display continuity is improved, but crosstalk occurs between left-eye and right-eye images due to liquid crystal response speed differences
Solution Approach 1:
The patent segments the stereoscopic image display into separate left-eye and right-eye image sequences, displaying them alternately. By dividing the image data into distinct left and right components and applying different grayscale corrections to each, the system prevents crosstalk while maintaining continuous display through rapid alternation between the two sequences.
Solution Approach 2:
The patent applies different grayscale correction parameters to left-eye and right-eye images. By adjusting the grayscale values independently for each eye's image sequence, the system compensates for liquid crystal response speed differences and eliminates crosstalk, while maintaining overall display continuity through consistent alternation timing.
2Reliability
If different grayscale values are applied to left-eye and right-eye images, then stereoscopic effect is improved, but crosstalk deteriorates display quality
Solution Approach 1:
The patent applies local quality correction by treating left-eye and right-eye images differently through separate grayscale correction processes. Each eye's image receives tailored grayscale adjustments appropriate to its specific requirements, enabling the stereoscopic effect to be maintained while preventing crosstalk through differentiated local processing.
3Object-affected harmful factors
If wavelength division system is used for stereoscopic display, then crosstalk is reduced, but color coordinate mismatch occurs between left-eye and right-eye images
Solution Approach 1:
The patent implements a feedback mechanism by measuring the actual color coordinates of the left-eye and right-eye images after wavelength division, comparing them to reference values, and generating correction data to adjust the color coordinates. This closed-loop approach ensures color consistency is restored after wavelength division separation.
Solution Approach 2:
The patent performs preliminary color coordinate correction by calculating and applying correction data before final image display. By pre-adjusting the color coordinates of left-eye and right-eye images based on their wavelength division characteristics, the system prevents color mismatch from occurring in the first place.
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
This approach enhances the display quality of stereoscopic images by eliminating color differences between left-eye and right-eye images, thereby reducing crosstalk and improving the overall viewing experience.
Implementation Method 1
a first light source for providing a first light having a first wavelength and a second light source for providing a second light having a second wavelength
Data Source
AI summary
A method of displaying a stereoscopic image provides first light having a first wavelength and second light having a second wavelength different from the first wavelength to the a display panel according to left-eye and right-eye images displayed on the display panel. Color correcting data are generated by correcting at least one of left-eye color data corresponding to the left-eye image and right-eye color data corresponding to the right-eye image such that a first color coordinate according to the first light and a second color coordinate according to the second light coincide with each other with respect to the same color. The left-eye and right-eye images are displayed using light having wavelengths different from each other, so that a display quality of the stereoscopic image may be enhanced.