Display Aperture and Lens Layout for Separate Viewing Angles
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Solution Overview
Problem
Existing display devices struggle to provide separate viewing angles for different users, such as a driver and a passenger in a vehicle, without compromising image quality or resolution.
Innovation Solution
A display device with a specific layout of light emitting elements and lenses that refract light to limit viewing angles, allowing different images to be visible from different directions by using a combination of apertures and lenses to control the direction of light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional display device is used to provide separate viewing angles for driver and passenger, then multiple users can view different images, but the image quality and resolution are compromised
Solution Approach 1:
The display device is segmented into multiple light emitting elements (first and second light emitting elements) with dedicated apertures and lenses for each element. This segmentation allows independent control of light emission directions for different viewing zones, enabling separate images for driver and passenger without compromising overall image quality
Solution Approach 2:
Different regions of the display device are assigned different optical properties through strategically placed apertures and lenses. The first aperture and first lens serve the first light emitting element for driver viewing, while the second aperture and second lens serve the second light emitting element for passenger viewing, creating local optimization for each viewing angle
2Adaptability or versatility
If apertures and lenses are added to control light direction, then viewing angles are limited effectively, but the device complexity increases
Solution Approach 1:
The aperture and lens functions are merged into a integrated optical control system where the aperture is positioned within the lens structure. This combination reduces the number of separate components and simplifies the overall device structure while maintaining effective viewing angle control
Solution Approach 2:
The lens structure serves multiple functions simultaneously: it focuses light from the light emitting element, defines the viewing angle through its optical properties, and works in conjunction with the aperture to control light direction. This multi-functionality reduces the need for additional separate components
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 limits viewing angles, enabling separate image display for multiple users while maintaining high resolution and image quality, and can adapt to different viewing requirements based on the vehicle's state.
Implementation Method 1
a first lens overlapping the first aperture and the second aperture
Data Source
AI summary
According to one embodiment, a display device comprises a substrate, a first light emitting element and a second light emitting element that are adjacent to each other in a first direction, a lower portion surrounding each of the first light emitting element and the second light emitting element, an upper portion provided on the lower portion, and a plurality of lenses having convex shapes projecting toward a side opposite to the substrate. The upper portion includes a first aperture overlapping the first light emitting element and a second aperture overlapping the second light emitting element. The plurality of lenses include a first lens overlapping the first aperture and the second aperture.