Image Display Method Temporal Grayscale Modulation
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Solution Overview
Problem
Current display technologies face challenges in achieving high transmittance ratios and large visual angles while maintaining ultra-high-definition resolution, particularly due to the reduction in the number of domains on display panels, which degrades image quality.
Innovation Solution
The method involves determining and displaying grayscales for pixels in adjacent frames of an image display device, where one frame's pixel grayscale is higher and the other's is lower than the original frame's, effectively achieving a superimposition of grayscales through temporal integration, allowing for improved visual angles and transmittance ratios without modifying the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the number of domains on display panel is reduced to achieve high transmittance ratio, then transmittance ratio is improved, but visual angle and image quality are degraded
Solution Approach 1:
The patent applies periodic action by alternating the grayscale values of pixels between two adjacent frames. For each pixel, one frame uses a higher grayscale while the other frame uses a lower grayscale, creating a temporal pattern that compensates for the limited visual angle of reduced-domain displays. This periodic grayscale switching enables the display to achieve both high transmittance ratio and large visual angle without modifying the physical domain structure.
2Illumination intensity
If the number of domains on display panel is reduced to achieve high transmittance ratio, then transmittance ratio is improved, but image quality is degraded
Solution Approach 1:
The patent uses periodic grayscale alternation between adjacent frames to maintain image quality. By systematically switching between higher and lower grayscales for each pixel across two frames, the method compensates for the image quality degradation caused by reduced domain count, achieving both high transmittance and preserved image fidelity.
Solution Approach 2:
The patent changes the grayscale parameter of pixels between adjacent frames to compensate for image quality loss. By adjusting grayscale values dynamically across frames rather than maintaining static values, the system overcomes the limitations of reduced-domain panels and achieves high image quality alongside high transmittance ratio.
3Illumination intensity
If grayscale values are increased for all pixels to improve brightness, then brightness is improved, but power consumption and contrast ratio are degraded
Solution Approach 1:
The patent applies periodic action by alternating grayscale values between higher and lower levels across adjacent frames. This temporal modulation allows the display to achieve adequate brightness perception through frame averaging while consuming less power, as not all pixels maintain maximum grayscale values continuously. The periodic switching pattern preserves contrast ratio while meeting brightness requirements.
Data Source
AI summary
The disclosure provides an image display method and device. An image display method applicable a multi-domain display device includes: obtaining grayscales of respective pixels in one frame of input image; determining grayscales of the respective pixels in two adjacent frames of output image according to the grayscales of the respective pixels in the frame of input image, wherein the grayscale of any pixel in one of the two adjacent frames of output image is higher than the grayscale of the pixel in the input image, and the grayscale of the pixel in the other frame is lower than the grayscale of the pixel in the input image; and displaying the two adjacent frames of output image.