Afterimage Reduction for High-Speed Vehicle Display Images
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-speed moving images can create afterimages due to slow response times in display devices, leading to a strange and flickering effect, especially in devices that cannot afford quick response times.
Innovation Solution
A drawing device that identifies current and past drawing positions of a move-target image, detects an afterimage-reducing region, and draws an afterimage-reducing image in that region to minimize afterimages, while also erasing previous images to prevent afterimages from being visible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a display device with slow response is used, then cost is reduced, but afterimage occurs causing strange and flickering effect
Solution Approach 1:
The patent applies preliminary action by drawing an afterimage-reducing image at the previous drawing position before the current move-target image is fully displayed. This preemptive rendering of the afterimage-reducing image in the trailing region counteracts the afterimage effect caused by slow display response, allowing cost-effective display devices to achieve smooth high-speed movement without strange or flickering effects
2Speed
If move-target image moves at high speed, then display responsiveness is improved, but afterimage from slow display response becomes more prominent
Solution Approach 1:
The patent applies local quality by creating an afterimage-reducing image with specific visual characteristics (fading, transparency, or gradient) only in the trailing region where the afterimage effect is most prominent. This localized treatment addresses the afterimage problem in the specific area where it occurs, allowing high-speed movement to be displayed effectively without requiring the entire display to use complex afterimage correction
Data Source
AI summary
Afterimages of a move-target image which is moved at high speed are reduced even if a display unit with slow response characteristics is used. A drawing device for continuously drawing a move-target image as a moving picture on a display image displayed on a display unit includes: a drawing position identification unit which identifies a current drawing position at which the move-target image is drawn on the display screen; a past drawing position storage unit in which is stored a prescribed number of past drawing positions where the move-target image is drawn previously; an afterimage-reducing region detection unit which detects an afterimage-reducing region of the move-target image, the afterimage reducing region extending from the current drawing position to any one of the past drawing positions; an afterimage-reducing image drawing unit which draws an afterimage-reducing image in the afterimage reducing region; and a move-target image drawing unit which draws the move-target image at the current drawing position.