Head-Up Display Optics for Clear View and Richer Information
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Solution Overview
Problem
Conventional head-up display systems mounted on movable bodies, such as vehicles, primarily function as navigation systems and struggle to display a wide variety of information effectively, particularly in a manner that avoids obstructing the user's direct line of sight while providing a clear and unobstructed view of the surroundings.
Innovation Solution
A head-up display system comprising a first projection module that projects images not directly facing the user, a second projection module that projects images directly facing the user, and a reflective optical element that reflects these images to create a virtual display, allowing for the presentation of various display items, including text, graphics, and animations, without obstructing the user's view, using a combination of display panels, optical systems, and a controller for image processing and voice recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a head-up display system projects images in the forward direction directly facing the user, then the user can easily view the information, but the display obstructs the user's direct line of sight to the surroundings
Solution Approach 1:
The patent introduces a reflective optical element positioned at an angle to the optical path, redirecting projected light from the forward direction to a side viewing direction. This dimensional change in light propagation allows the display information to be viewed without blocking the user's direct forward view of the surroundings.
Solution Approach 2:
The reflective optical element acts as an intermediary between the projection module and the user's eye. It receives projected images and redirects them to the user at an angle, mediating the interaction between the display system and the user while preventing direct obstruction of the forward line of sight.
2Object-affected harmful factors
If a head-up display system projects images in a forward direction not directly facing the user, then the user's line of sight remains unobstructed, but the ease of viewing information decreases
Solution Approach 1:
By changing the viewing dimension from direct forward view to a side angle view through the reflective element, the system maintains unobstructed forward line of sight while still providing accessible information display in the user's peripheral or angled vision.
3Device complexity
If conventional head-up display systems are used primarily as navigation systems, then the system structure remains simple, but the ability to display a wide variety of information effectively is limited
Solution Approach 1:
The patent enhances the navigation system's versatility by integrating a reflective optical element that enables multiple display configurations and information types without requiring complete system redesign. The system can display navigation information, vehicle status, and other data effectively while maintaining its fundamental navigation system structure.
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
Enables the display of a wide range of information items in a non-obstructive manner, enhancing user interaction and information access while maintaining an unobstructed view, through the use of virtual images and voice-activated controls, effectively addressing the limitations of conventional systems.
Implementation Method 1
a reflective optical element that reflects at least a part of the first image and at least a part of the second image
Data Source
AI summary
A head-up display system includes a first projection module that projects a first image to display the first image in a forward direction not directly facing a user, a second projection module that projects a second image to display the second image in a forward direction directly facing the user, and a reflective optical element that reflects at least a part of the first image and at least a part of the second image.