OLED Beam-Angle Control for Vehicle Display Distraction Reduction
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Solution Overview
Problem
Large vehicle displays can cause image noise and distractions for drivers due to wider viewing angles and reflections, which can compromise driving safety.
Innovation Solution
An OLED display system with dual organic light-emitting layers, where the control unit adjusts the on/off states and current levels of these layers based on vehicle speed to manage viewing angles and reduce distractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large display is used to provide diverse information, then the information display capability is improved, but image noise and driver distraction increase
Solution Approach 1:
The display panel is divided into multiple independent light-emitting layers (first light-emitting layer and second light-emitting layer), each capable of being controlled independently. This segmentation allows the system to selectively activate specific layers based on viewing conditions, thereby managing information display while reducing driver distraction through layered control
2Ease of operation
If the viewing angle is widened to allow co-driver viewing, then the accessibility for multiple users is improved, but side-window reflection and driver distraction increase
Solution Approach 1:
The system dynamically adjusts the viewing angle characteristics by selectively activating different light-emitting layers based on vehicle speed and viewing conditions. At higher speeds, the system switches to a narrower viewing angle mode to reduce reflections, while at lower speeds it enables wider viewing angles for multi-user accessibility
Solution Approach 2:
The system changes the optical parameters (viewing angle, beam angle) by controlling which light-emitting layers are active. The second light-emitting layer has a larger beam angle for wide viewing, while the first layer provides narrower angle control, allowing dynamic parameter adjustment to balance accessibility and reflection reduction
3Loss of information
If the display is always visible to maximize information access, then the information accessibility is improved, but driver safety is compromised due to distractions
Solution Approach 1:
The system periodically adjusts display visibility and characteristics based on vehicle speed thresholds and predetermined time intervals. The control unit monitors speed continuously and switches between full display mode and restricted display mode at defined speed thresholds, ensuring information is accessible when safe but minimized when driving safety is at risk
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 system effectively minimizes distractions for drivers by adjusting display modes to ensure safe viewing conditions, enhancing safety and user control over display exposure.
Implementation Method 1
an OLED display including a first organic light-emitting layer and a second organic light-emitting layer
Data Source
AI summary
Provided are an organic light emitting element (OLED) display system and a control method thereof. In more detail, the system disposed in a moving object includes: an OLED display including a first organic light-emitting layer and a second organic light-emitting layer; and a control unit controlling on/off of at least one of the first organic light-emitting layer and the second organic light-emitting layer, wherein the second organic light-emitting layer has a larger beam angle than the first organic light-emitting layer, and the control unit controls the on/off of the at least one of the first organic light-emitting layer and the second organic light-emitting layer based on a speed of the moving object.