Sub-pixel Rendering via Partial Output Frames for Display Data Reduction
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Solution Overview
Problem
The increasing demand for high-resolution, high-brightness display panels with low-power consumption leads to higher manufacturing costs due to the increased number of sub-pixels, necessitating a method to reduce data transmission and maintain image quality.
Innovation Solution
An image processing apparatus that performs sub-pixel rendering by generating partial output frames with reduced sub-pixel data for each pixel, using color diffusion ratios and compression techniques to minimize data quantity while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the display panel is improved, then the image display quality is improved, but the manufacturing cost is increased
Solution Approach 1:
The patent segments the sub-pixel data into multiple partial output frames, where each frame contains data for only a portion of the sub-pixels. This segmentation allows the display panel to achieve high resolution through temporal multiplexing rather than spatial density, reducing the number of physical sub-pixels needed while maintaining image quality.
Solution Approach 2:
The patent employs periodic action by cyclically updating different subsets of sub-pixels across multiple frames. Each sub-pixel is updated at different time intervals, creating a temporal pattern that the human eye perceives as complete high-resolution imagery. This periodic updating reduces the data transmission burden and manufacturing complexity.
2Measurement precision
If the number of sub-pixels is increased, then the image resolution is improved, but the data transmission amount is increased
Solution Approach 1:
The patent divides the complete sub-pixel data set into multiple partial output frames, with each frame containing data for only a subset of sub-pixels. This segmentation reduces the data transmission amount per frame while maintaining overall image resolution through temporal multiplexing of the segmented data across multiple frames.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary portion of sub-pixel data in each frame rather than complete data for all sub-pixels. Each frame contains partial data that, when combined with previous and subsequent frames, reconstructs the complete high-resolution image, thereby reducing instantaneous data transmission requirements.
3Quantity of substance
If the sub-pixel rendering method is applied, then the data transmission amount is reduced, but the image display quality may be reduced
Solution Approach 1:
The patent incorporates feedback mechanisms where the image data processor unit analyzes the content of input frames and dynamically adjusts the sub-pixel rendering process. This feedback ensures that the partial output frames maintain adequate image quality by optimizing which sub-pixels are updated in each frame based on image characteristics, preventing quality degradation despite reduced data transmission.
Solution Approach 2:
The patent changes parameters such as the timing and selection of which sub-pixels are updated in each partial output frame. By dynamically adjusting these parameters based on image content and display requirements, the system maintains image display quality while achieving reduced data transmission amounts through adaptive sub-pixel rendering.
Data Source
AI summary
An image processing apparatus including an image data processor unit is provided. The image data processor unit is configured to generate a plurality of partial output frames according to a plurality of input frames. With respect to one pixel in a display panel, each partial output frame among the partial output frames includes sub-pixel data corresponding to a part of sub-pixels in the pixel instead of sub-pixel data corresponding to all of the sub-pixels in the pixel. In addition, a display panel and a display apparatus are also provided.