Display Device Static Image Block Shifting for Pixel Degradation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices such as OLEDs and LCDs face issues with afterimages and pixel degradation when displaying high-luminance static images for extended periods, with conventional image shifting methods causing edge distortion and data loss.
Innovation Solution
A display device and method that selectively shifts static image blocks by inserting and deleting data along specific pixel lines, controlled by a timing controller, to prevent afterimages and pixel degradation, while maintaining image integrity by determining shift amounts and directions based on data insertion and deletion line locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional image shifting methods are used to prevent afterimages and pixel degradation, then pixel wear is reduced, but image edge distortion and data loss occur
Solution Approach 1:
The image is divided into movable static image blocks and fixed background regions. Only the static image blocks are shifted to prevent afterimages, while the background remains stationary to maintain image integrity. This segmentation allows selective application of shifting only where needed.
Solution Approach 2:
Different regions of the image are treated differently: static image blocks undergo shifting treatment to prevent pixel degradation, while other regions remain unchanged. This local differentiation ensures that image distortion is minimized while still protecting vulnerable pixels.
2Object-affected harmful factors
If static image blocks are shifted to prevent afterimages, then pixel degradation is reduced, but image distortion may occur
Solution Approach 1:
The shifting amount and direction are dynamically adjusted based on the position and size of static image blocks. By making the shifting adaptive rather than uniform, the system prevents afterimages while minimizing visible distortion in the displayed image.
Solution Approach 2:
The image shifting is applied periodically at specific time intervals rather than continuously. This periodic application prevents afterimage formation while reducing the cumulative distortion effect on the overall image display.
Data Source
AI summary
A display device and a method for correcting an image of the display device are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel lines configured to be selected as at least one of data insertion lines and data deletion lines. The display device also includes an image corrector configured to receive input image data, select the data insertion lines and data deletion lines when the input image data represents an image including a static image block, insert second image data corresponding to the data insertion lines into the input image data, and delete first image data corresponding to the data deletion lines from the input image data so as to generate corrected image data including a shifted static image block.