Optical Path Switching Display for Smart Cockpit Energy Reduction
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Solution Overview
Problem
The challenge of limited driver field-of-view and increased energy consumption due to multiple displays in smart cockpits, such as digital dashboards and head-up displays, which can lead to decreased utilization and higher energy use.
Innovation Solution
A display apparatus with multiple display surfaces and an optical path selection module that switches image beams between different optical paths, allowing a single display panel to present images on multiple surfaces, including a dashboard and a head-up display, using components like polarizing beam splitters, dichroic mirrors, and eye-tracking for efficient energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple display panels are used to provide different display surfaces (digital dashboard and head-up display), then the display functionality and coverage are improved, but the energy consumption increases and the actual utilization decreases
Solution Approach 1:
A single display panel is designed to serve multiple display surfaces through an optical path selection module. The display panel can switch between providing images for a digital dashboard, head-up display, or other surfaces by changing the optical path, making one device perform multiple functions that previously required separate display panels
Solution Approach 2:
The patent combines multiple display functions into a single integrated system. The optical path selection module merges the optical paths to different display surfaces, allowing one display panel to control multiple display outputs simultaneously or alternately, reducing the total number of display panels needed
2Adaptability or versatility
If multiple display panels are used to cover different display surfaces, then the display coverage is improved, but the device complexity increases
Solution Approach 1:
One display panel is designed with multi-functionality to replace multiple specialized display panels. By incorporating an optical path selection module, a single panel can dynamically redirect light to different display surfaces, reducing the overall number of display components while maintaining comprehensive display coverage
Solution Approach 2:
The optical path selection module acts as an intermediary between the single display panel and multiple display surfaces. This mediator component manages the light routing, allowing one display panel to effectively serve multiple surfaces without requiring direct connections to each surface, thereby simplifying the overall system architecture
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
The solution effectively reduces energy consumption by utilizing a single display panel to meet various display requirements, enhancing utilization rates and minimizing the need for multiple displays, while maintaining driver attention.
Implementation Method 1
At least one reflective element is disposed on the second optical path
Implementation Method 2
The optical path selection module is disposed on a transmission path of the image beam from the display panel
Data Source
AI summary
A display apparatus is adapted to display on at least one of a first display surface and a second display surface, and includes a display panel, an optical path selection module, and at least one reflective element. The display panel is provided with the first display surface, and is adapted to emit an image beam. The optical path selection module is disposed on a transmission path of the image beam. The image beam transmitted along a first optical path after passing through the optical path selection module is adapted to display a first image on the first display surface. The image beam transmitted along a second optical path after passing through the optical path selection module is adapted to display a second image on the second display surface. The first image is different from the second image. The at least one reflective element is disposed on the second optical path.