Vehicle Display Light Guide Plate with Dual Optical Paths
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle display systems struggle to simultaneously and effectively display multiple images or functions to multiple users, such as drivers and passengers, due to limitations in outputting different information related to various functions like navigation, radio, and audio, leading to difficulties in meeting the viewing needs of multiple viewers.
Innovation Solution
A display apparatus featuring a light guide plate with multiple optical paths, a backlight device with separate light source devices, and a controller that alternately turns on these sources to output different images, along with a rotation element that pivots the display to adjust image orientation, allowing for simultaneous display of multiple images and audio information tailored to different viewers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single display device outputs only information related to the selected function, then the device complexity is reduced, but the ability to meet the viewing needs of multiple viewers is worsened
Solution Approach 1:
The backlight device is segmented into multiple independent light source devices (first light source device, second light source device, etc.), each capable of emitting light independently. This segmentation allows the display device to output different images through different light sources, enabling multiple viewers to see different information simultaneously while maintaining a relatively simple overall device structure.
Solution Approach 2:
The display device is designed with multi-functionality by incorporating multiple light source devices that can be selectively activated. The light guide plate works with different light sources to provide diverse display functions, allowing a single display device to serve multiple viewing needs without requiring separate display units for each function.
2Adaptability or versatility
If a display device outputs multiple images about multiple functions, then the adaptability for multiple viewers is improved, but the light loss increases due to multiple optical paths
Solution Approach 1:
The light guide plate incorporates different optical paths with locally optimized light transmission properties. Each optical path is designed to efficiently guide light from specific light source devices to the display panel, minimizing light loss in each individual path while enabling multiple images to be displayed simultaneously through selective activation of different light sources.
3Adaptability or versatility
If the display device pivots to change output direction, then the adaptability for different viewing angles is improved, but the device complexity increases
Solution Approach 1:
The display device incorporates a rotation element that enables the case to pivot dynamically, changing the output direction of images. This dynamic adjustment capability allows the display to adapt to different viewing angles and orientations while maintaining a relatively simple mechanical structure through the use of a pivot mechanism rather than complex multi-axis rotation systems.
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 efficient and effective simultaneous display of multiple images and audio information to multiple users, improving user convenience and satisfaction by utilizing the entire light emitted from the light sources, reducing power consumption, and preventing light loss, while allowing for pivot rotation to accommodate different viewing angles.
Implementation Method 1
a light guide plate disposed between the first light source device and the second light source device, and provided with a light guide portion configured to guide light in a first optical path when the light of the first light source device is incident, and configured to guide light in a second optical path when the light of the second light source device is incident
Data Source
AI summary
A display apparatus configured for displaying different images at the same time, a vehicle having the same, and a method for controlling the same, may include a backlight device; and a display panel separate from the backlight device and configured to output an image using light of the backlight device, and the backlight device includes a first light source device configured to emit light; a second light source device separate from the first light source device, and a light guide plate disposed between the first light source device and the second light source device, and provided with a light guide portion configured to guide light in a first optical path when the light of the first light source device is incident and configured to guide light in a second optical path when the light of the second light source device is incident.