Local Viewing-Angle Control for Adjacent Display Panels
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Solution Overview
Problem
Multi-panel displays in transportation devices face issues with image reflection on windshields, affecting driver visibility in dark environments due to differing viewing angles of adjacent panels.
Innovation Solution
Incorporating a first display with a viewing angle control element and a back frame that includes alignment structures for fixing with positioning structures, along with a protection substrate to manage viewing angles and reduce reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the viewing angle range of a display panel is increased to improve visibility for passengers, then the visibility for front passenger is improved, but image reflection on the windshield increases and affects driver visibility
Solution Approach 1:
The patent applies different viewing angle control strategies to different display panels based on their specific locations and functions. The first display panel (driver side) has a first viewing angle control element with specific optical properties, while the second display panel (front passenger side) has a second viewing angle control element with different optical properties. This local differentiation allows each panel to optimize visibility for its intended viewers while minimizing unwanted reflections, particularly preventing the front passenger panel from reflecting images onto the windshield and interfering with the driver's view.
2Object-affected harmful factors
If different display panels have different viewing angle specifications to reduce windshield reflection, then driver visibility is improved, but the device complexity increases due to multiple viewing angle control elements
Solution Approach 1:
The patent changes the optical parameters of different display panels by incorporating viewing angle control elements with specific optical characteristics. The first viewing angle control element and second viewing angle control element have different optical properties tailored to their respective display panels' locations and functions. This parameter differentiation enables precise control over viewing angles and reflection characteristics, allowing the system to reduce windshield reflection while maintaining appropriate visibility for each user position.
3Object-affected harmful factors
If the viewing angle of the first display is limited to reduce reflection, then windshield reflection is reduced, but the visibility for the driver may be affected
Solution Approach 1:
The patent applies different viewing angle control strategies to different display panels based on their specific locations and functions. The first display panel (driver side) has a first viewing angle control element with specific optical properties, while the second display panel (front passenger side) has a second viewing angle control element with different optical properties. This local differentiation allows each panel to optimize visibility for its intended viewers while minimizing unwanted reflections, particularly preventing the front passenger panel from reflecting images onto the windshield and interfering with the driver's view.
Data Source
AI summary
An electronic device includes a first display, a second display, a back frame, and a protection substrate. The second display is adjacent to the first display. The back frame is configured to carry the first display and the second display. The protection substrate is disposed on the first display and the second display. Viewing angle ranges of the first display and the second display are different, and the first display includes a viewing angle control element.