Pointer Needle Stereoscopic Display via Two-Dimensional Density Control
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Solution Overview
Problem
Conventional graphical meters using vector graphics methods can only apply gradation to pointer needles in a single direction, limiting stereoscopic vision and resulting in performance degradation and increased memory requirements when trying to achieve high-speed and clear displays with image-based solutions.
Innovation Solution
A display device configuration that uses multiple display elements with continuously changing densities in both directions, allowing for the application of gradation in two directions without relying on images, thereby enhancing stereoscopic vision while maintaining high-speed data transfer and memory efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an image-based solution is used to apply gradation in two directions to the pointer needle, then stereoscopic vision is improved, but data transfer speed and drawing performance degrade
Solution Approach 1:
The pointer needle is divided into multiple display elements (vertical strips) that can be independently controlled. Each display element can have different density values, allowing gradation to be applied efficiently through segmented control rather than processing a complete image, thus maintaining high data transfer speed while achieving stereoscopic vision.
Solution Approach 2:
The patent applies gradation not only in the horizontal direction (across the pointer width) but also in the vertical direction (along the pointer length). This two-dimensional gradation approach creates enhanced stereoscopic vision while using a vector-based method that maintains performance by controlling display element densities rather than processing pixel data.
2Illumination intensity
If an image-based solution is used to apply gradation in two directions to the pointer needle, then stereoscopic vision is improved, but additional memory capacity is required
Solution Approach 1:
Instead of storing complete image data in memory, the patent segments the pointer needle into multiple display elements and stores only the density values for each segment. This dramatically reduces memory requirements while still enabling two-directional gradation for stereoscopic vision.
Solution Approach 2:
The patent changes the representation from pixel-based image data to parameter-based display element density values. By controlling density parameters of segmented elements rather than storing image pixels, memory capacity is reduced while maintaining the ability to create stereoscopic effects through two-directional gradation.
3Productivity
If the vector graphics method is used with single-direction gradation, then data transfer speed is maintained, but stereoscopic vision is limited
Solution Approach 1:
The patent extends the vector graphics method by applying gradation in both horizontal and vertical dimensions. This is achieved by controlling the density of display elements in two directions, transforming the single-direction limitation into a two-dimensional solution that maintains vector graphics performance while enhancing stereoscopic vision.
Data Source
AI summary
A display device displays a plurality of display elements having respective densities that continuously change in a first direction (an X direction), in such an arrangement that the display elements constitute a pointer needle and the densities continuously change in a second direction (a Y direction) intersecting the first direction, thereby displaying the pointer needle on a display section. This provides a display device with improved stereoscopic vision of the pointer needle.