Vehicle Dashboard Display with Dynamic Needle Illumination
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Solution Overview
Problem
The blurring of light outputs from needles and other information on digital dashboard displays reduces visibility, making it difficult for drivers to distinguish between the needles and other information, thereby degrading their ability to read vital speed and other vehicle-related data effectively.
Innovation Solution
A dashboard display system with a light source unit arranged in a matrix form, where the processor controls the brightness of specific regions based on the position of the needle, creating a clear contrast between the needle and other information, and dynamically adjusts according to vehicle speed, acceleration, road conditions, and illumination values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If backlight is used to form various types of information below needles on digital dashboard displays, then more information can be efficiently output in limited space, but light output from needles and light output below needles overlap causing blurring that reduces visibility
Solution Approach 1:
The patent applies local quality by controlling the brightness of specific regions in the dashboard display. The processor adjusts the brightness of light sources based on the needle position, creating a brighter region around the needle and dimmer regions for other information. This localized brightness adjustment ensures the needle remains clearly visible while still displaying multiple types of information below it, resolving the contradiction between information quantity and visibility.
2Ease of manufacture
If uniform brightness is applied across the entire display, then manufacturing and control are simplified, but the boundary between needles and other information becomes unclear degrading driver visibility
Solution Approach 1:
The patent implements dynamics by making the display brightness adaptive rather than static. The processor dynamically adjusts the brightness of different regions based on real-time needle position data and driving conditions. This dynamic control creates clear boundaries between needles and other information while maintaining manufacturing simplicity through software-based control of existing light sources.
3Illumination intensity
If brightness is increased to improve needle visibility, then driver visibility is enhanced, but power consumption of the dashboard display increases
Solution Approach 1:
The patent applies local quality by illuminating only the necessary regions at high brightness. Instead of increasing brightness across the entire display, the processor selectively increases brightness only in regions containing needles while maintaining lower brightness for other information areas. This approach enhances needle visibility for driver safety while minimizing overall power consumption of the dashboard display.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly improves the visibility of the needle by creating a clear boundary with other information, enhancing driver visibility and providing a dynamic interface that adapts to various driving conditions, while also reducing power consumption.
Implementation Method 1
each needle may emit light having a predetermined color indirectly through a prism structure or may emit light having a predetermined color directly through a light source such as an LED
Data Source
AI summary
A dashboard display for a vehicle, and including a light source unit including a plurality of light sources disposed in a matrix form; a display unit configured to display speedometer information using light provided from the light source unit; a needle positioned on the speedometer information and rotatably moving according to a speed of the vehicle; and a processor configured to control the light source unit to emit a predetermined brightness in a region at least partially surrounding the needle, and vary the region at least partially surrounding the needle according to a position of the needle.