Sub-pixel Rendering Boundary Distortion Control
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Solution Overview
Problem
Conventional sub-pixel rendering methods suffer from distortion in boundary regions of displayed images due to the sharing of sub-pixels, which leads to an inability to accurately display color differences and contrast.
Innovation Solution
A sub-pixel rendering method that divides image pixels into boundary region pixels and continuous region pixels, where boundary region pixels exclusively use their sub-pixels, while continuous region pixels share sub-pixels, allowing for accurate color representation in boundary regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sub-pixels are shared between adjacent screen pixels to increase resolution, then the display resolution is improved, but distortion occurs in boundary regions where color differences cannot be accurately displayed
Solution Approach 1:
The patent applies local quality by differentiating the rendering strategy between boundary region pixels and continuous region pixels. Boundary region pixels use exclusive sub-pixel assignment to maintain color accuracy, while continuous region pixels use sub-pixel sharing to maximize resolution. This localized differentiation resolves the contradiction by allowing each region to be optimized for its specific requirements.
Solution Approach 2:
The patent segments the image pixels into two categories: boundary region pixels and continuous region pixels. This segmentation enables the system to apply different sub-pixel driving strategies to different segments, thereby achieving both high resolution through sharing in continuous regions and high color accuracy through exclusivity in boundary regions.
2Measurement precision
If the number of sub-pixels on the screen is increased to improve resolution, then display resolution is improved, but manufacturing difficulty increases when reaching certain limits
Solution Approach 1:
The patent merges the functionality of multiple sub-pixels by enabling sharing between adjacent screen pixels. Instead of requiring each sub-pixel to be independently driven, the system combines sub-pixel resources through sharing, thereby achieving higher effective resolution without proportionally increasing the physical number of sub-pixels, which eases manufacturing constraints.
Solution Approach 2:
The patent implements multi-functionality by enabling sub-pixels to serve multiple screen pixels through sharing. A single sub-pixel can be dynamically assigned to different screen pixels based on whether they are in boundary or continuous regions, maximizing the utilization of available sub-pixels and achieving high resolution without requiring the maximum possible physical sub-pixel density.
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 improves the display's ability to accurately depict original contrast in boundary regions, reducing distortion and maintaining high resolution by ensuring each boundary region pixel uses its own sub-pixels.
Implementation Method 1
When an array of sub-pixels is lightened, through the light mixing effect, the screen pixel C and the screen pixel D complete displaying of the image pixel 'm' and the image pixel 'n' respectively
Data Source
AI summary
This application discloses a sub-pixel rendering method, and relates to the field of displaying. It is capable of making improvement with respect to the problem of distortion in the boundary region of the displayed image while ensuring a relatively high resolution of the display. The sub-pixel rendering method comprises: receiving a digital image; dividing, according to color values of image pixels in the digital image, the image pixels into boundary region pixels and continuous region pixels; generating a plurality of screen pixels on a screen, each screen pixel at least including one red sub-pixel, one blue sub-pixel, and one green sub-pixel, one of the plurality of screen pixels being used for correspondingly displaying one of the image pixels; wherein adjacent screen pixels for displaying the continuous region pixels share sub-pixels, and each screen pixel for displaying the boundary region pixels exclusively uses its sub-pixels.