Vehicle Display Privacy Mode With Asymmetric Viewing Brightness
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Solution Overview
Problem
Current vehicle display panels in privacy mode reduce front view brightness for passengers, leading to a poor viewing experience.
Innovation Solution
The display panel is switched between a share mode and a privacy mode, with the passenger-side portion having a lower light emission brightness at a specific viewing angle and higher brightness at another angle, reducing interference with the driver while maintaining adequate passenger visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display panel is set to privacy mode to reduce driver distraction, then driver safety is improved, but passenger viewing experience deteriorates due to reduced front view brightness
Solution Approach 1:
The display panel implements different brightness characteristics for different viewing directions. Specifically, the panel is configured to have reduced brightness at front viewing angles (0-30 degrees) to protect driver safety, while maintaining or enhancing brightness at side viewing angles (30-60 degrees) to ensure passenger viewing experience. This directional brightness differentiation allows the same display panel to simultaneously satisfy both driver safety requirements and passenger viewing needs.
2Object-affected harmful factors
If the display panel reduces light emission at normal viewing angle for privacy, then driver interference is minimized, but overall visibility for passenger is compromised
Solution Approach 1:
The display panel employs asymmetric brightness distribution relative to the normal viewing angle. Instead of symmetric reduction in all directions, the panel is designed with asymmetric characteristics where brightness is selectively reduced only in the front direction (driver side) while maintaining or increasing brightness in side directions (passenger side). This asymmetric approach allows the panel to minimize driver interference without compromising passenger visibility.
Data Source
AI summary
An electronic device and a vehicle using the same are provided. The electronic device includes a display panel. The display panel is switched between a share mode and a privacy mode. In the privacy mode, a first light emission brightness measured at a first viewing angle is lower than a second light emission brightness measured at a normal line of the display panel, and a third light emission brightness measured at a second viewing angle is higher than the second light emission brightness.