OLED Static Image Processing to Reduce Afterimages
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Solution Overview
Problem
OLED display panels experience reduced brightness and afterimages due to built-in electric fields caused by accumulated holes and electrons, leading to prolonged light-emitting times of static images.
Innovation Solution
A driving system and static image processing method that detects static images, classifies them based on features, and applies appropriate processing modes such as image displacement or brightness reduction to minimize afterimages, including the use of a static image processor with detection, control, and image data processing units within the OLED display panel's timing controller or as a standalone module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If OLED display panel continuously displays static images, then the display function is maintained, but afterimages occur due to built-in electric fields from accumulated charges
Solution Approach 1:
The patent applies periodic action by implementing a static image detection mechanism that identifies when the same image is displayed for a predetermined time period, and then activates processing modes (such as pixel displacement or brightness adjustment) periodically to prevent afterimage formation while maintaining normal display function during non-static periods
Solution Approach 2:
The patent implements preliminary action by detecting static images before afterimages fully form, and proactively applying processing modes to prevent the harmful effect. The system monitors display content continuously and takes preventive measures when static image conditions are detected, rather than waiting for afterimage problems to manifest
2Object-affected harmful factors
If processing modes are applied to reduce afterimages, then afterimage occurrence is reduced, but light-emitting time of static images is shortened
Solution Approach 1:
The patent applies partial action by selectively processing only the static image portions that would cause afterimages, rather than processing the entire display continuously. The system identifies specific static regions and applies processing modes only to those areas, preserving normal light-emitting time for dynamic content while still preventing afterimages in static regions
Data Source
AI summary
A driving system of an OLED display panel and a static image processing method are disclosed. The method includes steps of: detecting a static image on the OLED display panel; classifying a detected static image according to image features; and selecting a corresponding processing mode according to the static image after classification so as to reduce an afterimage. According to the present disclosure, the afterimage on the display panel can be reduced.