Vehicle Display Adjusting Projection via Movable Mirror
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional head-up displays with a single image generator are limited in providing multiple images with varying projection distances and magnifications, leading to a restricted display area and increased size and manufacturing costs, as they use fixed projection methods like LCD or DLP panels.
Innovation Solution
A display apparatus and method that utilizes a single image generator to adjust image size, position, resolution, and magnification based on the vehicle's traveling mode, using a multi-transmissive screen and aspherical mirror to provide multiple projection distances and magnifications, allowing for dynamic image display adjustments according to vehicle speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single image generator is used with fixed projection methods (LCD or DLP panel), then the device size and manufacturing cost are reduced, but the display area is limited and multiple images with different projection distances and magnifications cannot be provided
Solution Approach 1:
The patent employs a movable mirror that can change its position dynamically to adjust the projection distance and magnification of the image. By moving the mirror along an optical path, the system achieves variable projection characteristics without requiring multiple fixed image generators, thus resolving the contradiction between adaptability and display area limitations.
Solution Approach 2:
The system changes the projection parameters (distance and magnification) by adjusting the position of the movable mirror. This parameter change allows a single image generator to produce multiple images with different characteristics, overcoming the limitation of fixed projection methods while maintaining a compact device structure.
2Adaptability or versatility
If multiple image generators are used to provide multiple images, then the driver can receive images with different projection distances and magnifications, but the device size and manufacturing cost increase
Solution Approach 1:
The patent makes a single image generator perform multiple functions by introducing a movable mirror. This mirror directs light from the single image generator to create multiple images with different projection distances and magnifications, effectively making one component serve the role of multiple image generators without increasing device complexity.
Solution Approach 2:
The movable mirror acts as an intermediary element between the single image generator and the display medium. It manipulates the light path to produce multiple images with varying characteristics, enabling the system to achieve the functionality of multiple image generators while maintaining a simple and compact structure.
3Ease of manufacture
If LCD or DLP panel methods are used for image projection, then the manufacturing process is simplified, but the projection distance is fixed and cannot be adjusted
Solution Approach 1:
The patent maintains the simplicity of LCD or DLP panel manufacturing while adding a movable mirror component that introduces dynamic adjustability. The mirror's ability to change position allows the system to vary projection distance and magnification without complicating the core image generation process, thus preserving ease of manufacture while gaining adaptability.
Data Source
AI summary
Disclosed is a display apparatus which considers the speed and traveling mode of a vehicle. The display apparatus includes an information obtaining unit configured to obtain at least one of internal and external information about a vehicle, a control unit configured to process the information obtained by the information obtaining unit into a single image or a plurality of images by using a single image generator and control the image to be changed according to a traveling mode of the vehicle, and a display unit configured to display the image or the plurality of images.