OLED Display Object Shifting to Reduce Edge Black Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Image display apparatuses with OLED panels suffer from degradation issues such as burn-in, leading to black areas on the screen edges when signal processing methods like shifting images in a single direction cause frame-like black areas.
Innovation Solution
The apparatus employs a signal processing device that separates and moves objects in different directions and distances over time, adjusting their sizes to maintain balance and reduce degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire image is shifted in a single direction to reduce image retention, then image degradation is reduced, but black areas occur on the screen edges
Solution Approach 1:
The image is divided into multiple objects, and each object is shifted in a different direction rather than shifting the entire image uniformly. This segmentation approach allows different regions to be processed independently, preventing the formation of black areas on screen edges while still achieving image retention reduction
Solution Approach 2:
Different objects within the image are assigned different shift directions based on their local characteristics and positions. Objects closer to screen edges are shifted in directions that prevent black area formation, while central objects may be shifted differently to optimize degradation reduction
2Reliability
If objects are separated by a large distance to reduce degradation, then image retention is reduced, but object balance in the image is compromised
Solution Approach 1:
The shift distance for each object is dynamically adjusted based on its position, size, and proximity to screen edges. Objects are shifted by different distances in different directions, creating a dynamic balancing act that reduces image retention while maintaining visual composition and object balance
Data Source
Figure 1A
Figure 1B~1D
Figure 2
AI summary
The present disclosure relates to an image display apparatus An image display apparatus according to an embodiment of the present disclosure includes: a display including an organic light emitting diode (OLED) panel; and a signal processing device to output an image signal to the display, wherein, upon displaying a plurality of objects apart from each other, the signal processing device is configured to: separate, at a first time, a first object and a second object of the plurality of objects by a first distance; and separate, at a second time after the first time, the first object and the second object by a second distance different from the first distance. Accordingly, it is possible to maintain balance between the objects in the image while reducing degradation.