Rear Seat Display Light Assembly for Glare-Free Reading
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Solution Overview
Problem
Vehicle rear seat displays suffer from insufficient ambient lighting, fixed illumination angles causing glare and eye discomfort, and inadequate light for tasks like reading or applying makeup.
Innovation Solution
A multifunctional eye protection light system with adjustable illumination angles, including a display, connecting piece, and hinge mechanisms, allowing rotation and vertical adjustment to accommodate different user activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If fixed auxiliary illumination is provided by rear seat lights disposed on the roof, then ambient lighting is improved, but the illumination angle cannot be adjusted causing glare on the display and eye discomfort
Solution Approach 1:
The patent implements a dynamic illumination system where the light source is mounted on the display bezel rather than fixed on the roof. The connecting piece with hinge mechanisms enables the light source to rotate and adjust its illumination angle dynamically, allowing adaptation to different viewing conditions and eliminating fixed-angle glare problems
Solution Approach 2:
The connecting piece acts as an intermediary component between the display and the light source. It includes hinge mechanisms that mediate the angular adjustment, allowing the light source to be positioned at optimal angles relative to both the display and the user's eyes, thus resolving the conflict between providing sufficient illumination and avoiding glare
2Ease of manufacture
If rear seat lights are disposed on the roof with fixed illumination angle, then installation simplicity is improved, but viewing experience is degraded due to glare on display
Solution Approach 1:
The light source is designed with rotational capability through hinge mechanisms in the connecting piece, enabling dynamic angle adjustment. This allows the illumination to be directed away from the display surface, eliminating glare while maintaining relatively simple integration with the display structure
Solution Approach 2:
The illumination is localized to specific angular zones that avoid the display surface. By adjusting the light direction to illuminate only the user's face and reading materials without striking the display, the harmful glare effect is eliminated while maintaining effective ambient lighting
3Adaptability or versatility
If multifunctional eye protection light with adjustable angle is implemented, then adaptability to different usage situations is improved, but device complexity increases due to hinge mechanisms and retractable connecting piece
Solution Approach 1:
The light source serves multiple functions: it provides ambient lighting for video viewing, dedicated illumination for reading books or documents, and adjustable-angle lighting for makeup application. This multi-functionality justifies the additional structural complexity by eliminating the need for separate lighting devices for different activities
Solution Approach 2:
The connecting piece is designed to be retractable into the display bezel when not in use. The hinge mechanisms allow the light source to be folded or retracted into a compact configuration within the display structure, minimizing the increase in overall device complexity while maintaining full adjustability when needed
4Illumination intensity
If light source amount is increased to provide sufficient illumination for reading and makeup, then task performance is improved, but glare on display and eye discomfort worsen
Solution Approach 1:
The illumination is selectively directed to specific areas (user's face, reading materials, makeup application area) while avoiding the display surface and the user's eyes. This localized illumination approach allows high light intensity in task areas without causing glare or eye discomfort
Solution Approach 2:
The adjustable angle mechanism allows dynamic optimization of light distribution. The user can adjust the illumination angle to maximize light delivery to the task area while minimizing light reflection from the display and direct exposure to eyes, thus enabling high illumination intensity without adverse effects
Data Source
AI summary
A vehicle rear seat display with a multifunctional eye protection light is provided, and the vehicle rear seat display with a multifunctional eye protection light includes a display, a multifunctional eye protection light, and a connecting piece. The multifunctional eye protection light is retractably disposed on the back of the display through the connecting piece, and the multifunctional eye protection light is also rotated vertically along the connecting piece to adjust the light-illuminating angle according to the user's usage situation.