Display Device Afterimage Overlap for Moving Object Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing display devices on moving objects, such as vehicles, face poor visibility and unclear relationships between the moving direction of the indicating member and scale marks due to the separation of afterimages and scale marks, making it difficult to recognize the moving condition effectively.
Innovation Solution
A display device design where the afterimage of the indicating member overlaps with the area containing the indexes, with the display control member ensuring the afterimage extends from the tip of the indicating member to the index area, making the indexes visible through the afterimage, and optionally displaying the afterimage darker and larger based on the moving amount, and emphasizing the closest index.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the afterimage and scale marks are arranged in a relatively wide range to avoid overlap, then the display area is sufficient, but the visibility is poor and the relationship between moving direction and scale marks is unclear
Solution Approach 1:
The patent merges the afterimage and scale marks into an overlapping spatial relationship. The afterimage is positioned to overlap with the scale marks on the dial plate, creating a combined visual element that simultaneously displays both the motion trajectory and the measured value, thereby improving visibility without requiring additional display area
Solution Approach 2:
The patent introduces temporal dimension to the display by using afterimage persistence. The afterimage maintains the previous position of the indicating member for a short duration, creating a visual trail that shows motion direction and speed while the indicating member moves to new positions, effectively adding a time-based layer to the spatial display
2Difficulty of detecting and measuring
If the afterimage is made more prominent to improve visibility of moving direction, then the moving direction is clearer, but the indexes become less visible
Solution Approach 1:
The patent applies local quality by making the afterimage semi-transparent rather than completely opaque. This allows the afterimage to be visually prominent for showing motion direction while simultaneously permitting the scale marks and indexes underneath to remain visible through the afterimage, thus preserving both pieces of information
Solution Approach 2:
The patent implements dynamic control of the afterimage characteristics. The display control member adjusts the afterimage properties (such as transparency, brightness, or duration) based on the motion state of the indicating member, enhancing the afterimage prominence during rapid motion while maintaining index visibility during steady states
Data Source
Figure 1
Figure 2
Figure 3
AI summary
[Problem] To provide a display device able to visibly and clearly display a relationship between a moving condition of an indicating member and an indexes. [Means for solving problem] A display device (1) includes: a design pattern (31) on which a plurality of numerical markers (35) are arranged; a pointer (32) configured to move along the numerical markers (35), and display a position corresponding to a measured amount of a moving object; a display member (15) configured to display an afterimage (33) extending in a direction M' opposite to a moving direction M of the pointer (32); and a CPU(IO) configured to control the display member (15) to display the afterimage (33). A tip (32a) of the pointer (32) is overlapped with an area (36) on which the numerical markers (35) are arranged. The CPU(IO) makes the afterimage (33) extend from the tip part (32a) of the pointer (32) to be overlapped with the area (36) on which the numerical markers (35) are arranged, and makes the numerical markers (35) visible through the afterimage (33).