Display Panel Driver Scaling with Boundary Pixel Data
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Solution Overview
Problem
Existing display panel drivers face challenges in performing image scaling with multiple image processing units, leading to unnatural discontinuity at the boundaries between adjacent images, which increases processing load and circuit size.
Innovation Solution
A display device and method that includes a first and second scaler circuit, along with a pixel data feeding section, where boundary pixel data from adjacent image regions are fed to both scaler circuits to perform image scaling, generating enlarged image data for each region, thereby reducing discontinuity and circuit size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If image scaling processing is performed with multiple image processing units in parallel, then the processing load of each image processing unit is reduced, but image discontinuity occurs at the boundary between adjacent divisional images
Solution Approach 1:
The original image is divided into multiple divisional images that are processed in parallel by multiple image processing units. This segmentation allows the processing load to be distributed across multiple units, improving overall productivity while maintaining manageable processing requirements for each individual unit.
Solution Approach 2:
Boundary pixel data is selectively shared between adjacent image processing units to ensure high-quality seamless transitions at boundaries. Instead of uniformly processing all pixels the same way, the system applies special handling to boundary regions by feeding boundary pixel data from adjacent divisional images to both neighboring processing units, ensuring local quality at critical transition zones while maintaining efficient parallel processing.
2Manufacturing precision
If advanced image processing such as image analysis and noise removal is performed, then image quality is improved, but the processing amount increases and circuit size increases
Solution Approach 1:
Instead of performing comprehensive advanced image processing on the entire image, the system applies selective processing only to boundary regions where discontinuity is most likely to occur. By focusing computational resources on partial regions (boundaries) rather than the whole image, the system achieves effective image quality improvement at boundaries while avoiding the excessive processing load and circuit complexity that would result from processing the entire image with advanced algorithms.
Data Source
AI summary
A display panel driver includes first and second scaler circuits and a pixel data feeding section which feeds to the first scaler circuit first divisional image pixel data corresponding to a first divisional image and feeds to the second scaler circuit second divisional image pixel data corresponding to a second divisional image. The pixel data feeding section also feeds to the first scaler circuit first boundary pixel data corresponding to pixels in a portion of the second divisional image, adjacent to the first divisional image and feeds to the second scaler circuit second boundary pixel data corresponding to pixels in a portion of the first divisional image, adjacent to the second divisional image. The first scaler circuit performs image scaling on the basis of the first divisional image pixel data and the first boundary pixel data and the second scaler circuit performs image scaling on the basis of the second divisional pixel image data and the second boundary pixel data.