Vehicle Instrument Cluster Display with Dynamic Light Permeability
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Solution Overview
Problem
Current vehicle electronic instrument clusters face challenges in dynamically adjusting the light intensity and permeability of display content to optimize visibility in varying ambient conditions, which can affect the readability of critical operational information.
Innovation Solution
A display system comprising a backlight, multiple layers, and processing units that adjust light intensity and permeability based on input signals from vehicle components, allowing for dynamic control of light transmittance and impermeability to optimize the display of content and indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light intensity of the backlight is increased to improve visibility of display content, then the readability of operational information is improved, but the visibility of critical indicators may be compromised in certain ambient conditions
Solution Approach 1:
The display is segmented into multiple layers (first layer for content, second layer for critical indicators) that can be independently controlled. This allows selective adjustment of light intensity for different display regions, enabling optimization of visibility for both content and critical indicators under varying ambient conditions without compromising either.
Solution Approach 2:
The system dynamically adjusts the light intensity of the backlight and the light permeability of the second layer based on ambient light conditions and operational state. This dynamic control enables the display to adapt to different viewing environments, maintaining optimal visibility for both content and critical indicators across varying conditions.
2Device complexity
If a single layer display structure is used to simplify device complexity, then manufacturing and operation are easier, but the ability to dynamically adjust light permeability for different content types is limited
Solution Approach 1:
The display structure is divided into multiple layers (first layer for content, second layer for critical indicators) with independent light permeability control. This segmentation enables selective adjustment of light transmission for different content types, providing dynamic adaptability while maintaining a relatively simple overall structure that is manufacturable.
Solution Approach 2:
The second layer serves multiple functions: it can be adjusted to different light permeability states to display critical indicators when needed, and can be made more transparent to allow backlight to illuminate content on the first layer. This multi-functionality provides adaptability without requiring completely separate display systems.
3Illumination intensity
If the second layer is made light impermeable to enhance critical indicator visibility, then critical indicators become more prominent, but the readability of underlying content is reduced
Solution Approach 1:
The display is segmented into functional layers where the second layer can be selectively activated to display critical indicators while allowing underlying content to remain visible through the transparent portions. This segmentation enables simultaneous visibility of both critical indicators and content by spatial and functional separation.
Solution Approach 2:
The light permeability of the second layer is dynamically adjustable rather than fixed. This allows the system to switch between states: more transparent when content readability is prioritized, and more opaque when critical indicator visibility is prioritized, thereby preventing permanent loss of information while enhancing indicator prominence when needed.
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
Enhances the visibility and readability of operational information on the instrument cluster by dynamically adjusting light intensity and permeability, ensuring clear display in different conditions while maintaining the visibility of critical indicators.
Implementation Method 1
a second layer adjustable between at least a light permeable state and a light impermeable state
Implementation Method 2
a display unit including a backlight
Data Source
AI summary
A system and method for adjusting the display of light-based content of a display system includes a display unit. The display unit includes a first layer cooperating with a backlight, a second layer disposed proximate the first layer and a third layer disposed proximate the second layer. At least one microcontroller in communication with the display unit includes a first processing unit configured to receive a dimming level value and a second processing unit. The second processing unit evaluates the dimming level value against a threshold value and adjusts one or more properties of the display unit in response to the measured values.