Image Processing Device Scaling Sub-Images to Prevent Sticking
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Solution Overview
Problem
Image sticking occurs on display devices due to pixel degradation over time, particularly when displaying still images, which affects the quality and clarity of the displayed content.
Innovation Solution
An image processing device that includes an image determiner to differentiate between still and motion picture images, a first compensator to adjust the scaling ratio of the image data by expanding or reducing the center part, and a second compensator to divide and adjust the scaling ratios of sub-image data, thereby preventing image sticking by alternately providing compensating signals based on the image type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display device displays still images for extended periods, then the image data remains static on the pixels, but image sticking occurs due to pixel degradation
Solution Approach 1:
The image processing device is divided into multiple functional modules: an image determiner that identifies still images, a first compensator that adjusts scaling ratios, and a second compensator that applies additional compensation. This segmentation allows each module to perform a specific function, preventing image sticking through coordinated action while maintaining manageable system complexity
Solution Approach 2:
The image processing device performs preliminary detection of still images before they are displayed on the pixels. By identifying still images in advance and applying scaling ratio compensation beforehand, the system prevents image sticking from occurring in the first place, rather than attempting to correct it after the fact
2Reliability
If the scaling ratio of image data is continuously adjusted to prevent image sticking, then pixel degradation is reduced, but image quality may deteriorate due to excessive processing
Solution Approach 1:
The scaling ratio compensation is implemented dynamically rather than statically. The image processing device continuously monitors image data characteristics and adjusts scaling ratios in real-time based on actual display conditions. This dynamic approach allows the system to prevent image sticking while maintaining image quality by applying only the necessary compensation
Solution Approach 2:
The system changes the scaling ratio parameter of the image data to prevent image sticking. By adjusting this specific parameter dynamically based on image type and display conditions, the system achieves image sticking prevention while minimizing impact on overall image quality through targeted parameter modification
3Reliability
If the image processing device applies different compensating signals for still images and motion pictures, then image sticking is prevented for still images, but processing time increases due to image type differentiation
Solution Approach 1:
The image determiner performs preliminary classification of image data as either still images or motion pictures before the main processing occurs. This early differentiation allows the system to apply appropriate compensating signals efficiently, avoiding unnecessary processing for motion pictures while providing targeted compensation for still images
Solution Approach 2:
The system applies full scaling ratio compensation only when necessary (for still images), rather than continuously processing all image data. By using partial action selectively based on image type, the system prevents image sticking for still images while minimizing processing time overhead for motion pictures
Data Source
AI summary
An image processing device includes an image determiner which determines whether an image data is a still image or a motion picture image, a first compensator which gradually changes a scaling ratio of the image data of which a center part is fixed and a second compensator which divides the image data into a plurality of sub-image data and change a scaling ratio of the sub-image data.