OLED Pixel Brightness Adjustment for Image Shift Blinking
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Solution Overview
Problem
OLED displays experience blinking issues when images shift due to differences in the life cycles of red, green, and blue elements within pixels, which worsen with image size and pattern changes.
Innovation Solution
An electronic device with a processor that selectively increases the brightness of specific pixels displayed at less than specified brightness before shifting an image, preventing blinking by adjusting pixel brightness before image movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If image shifts are performed on OLED display, then image movement functionality is achieved, but blinking occurs due to pixel element life cycle differences
Solution Approach 1:
The patent applies preliminary action by adjusting the brightness of pixels before the image shift occurs. Specifically, pixels that will be turned off during the shift are brightened in advance, and pixels that will be turned on are darkened in advance. This pre-adjustment eliminates the blinking effect that would otherwise occur during the transition, allowing smooth image movement without visual disturbances.
2Reliability
If pixel brightness is adjusted to prevent blinking, then visual stability is improved, but additional processing complexity is introduced
Solution Approach 1:
The patent applies local quality by selectively adjusting the brightness of specific pixels rather than the entire display. Only pixels in the transition region that will be affected by the image shift are modified - pixels turning off are brightened locally, and pixels turning on are darkened locally. This localized approach maintains visual stability while minimizing the overall processing complexity compared to global adjustments.
Data Source
AI summary
An electronic device according to various embodiments of the disclosure includes a memory storing an image, a display, and a processor. The processor is configured to display the image on the display, to select at least one pixel, which is displayed on the display at less than specified brightness, from among pixels included in the image, to increase brightness of the selected at least one pixel, and to shift the image displayed on the display. Other embodiments are also possible.