Windshield HUD Brightness Control to Limit Light Leakage
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Solution Overview
Problem
Vehicle optical systems face challenges in adjusting light intensity to enhance driving safety and user experience, particularly due to light leakage and ambient object overlap, which can obscure critical driving information.
Innovation Solution
A vehicle optical system comprising a processor, display device, and sensor that adjusts the light intensity of light emitting units based on ambient light and environmental conditions to optimize image clarity and prevent obscuration of ambient objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light intensity of light emitting units is increased to improve image visibility, then the image clarity is improved, but light leakage occurs causing displayed information to become unclear
Solution Approach 1:
The patent implements dynamic adjustment of light intensity by controlling the light emitting units based on detected ambient light conditions. The system transitions from static to dynamic operation, adjusting illumination levels in real-time to prevent both insufficient visibility and excessive light leakage, thereby resolving the contradiction between image clarity and light leakage.
Solution Approach 2:
The patent employs a feedback mechanism where light intensity is adjusted according to information sensed from the environment. The system continuously monitors ambient conditions and modifies the output of light emitting units accordingly, creating a closed-loop control system that prevents light leakage while maintaining adequate image visibility.
2Reliability
If the light intensity is increased to enhance displayed information visibility, then the driving safety is improved, but ambient objects overlap with displayed image reducing driving safety
Solution Approach 1:
The system dynamically adjusts light intensity based on ambient conditions to prevent the displayed image from overwhelming or overlapping with ambient objects. By adapting illumination levels to environmental context, the system maintains driving safety without causing visual interference between displayed information and real-world objects.
Solution Approach 2:
The patent changes the parameter of light intensity according to ambient light detection. By adjusting this physical parameter based on environmental conditions, the system ensures that displayed information remains visible without creating harmful overlap with ambient objects, thereby maintaining driving safety.
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 enhances driving safety and user experience by dynamically adjusting light intensity to reduce light leakage and ensure clear visibility of both displayed information and ambient objects, improving overall perception of the driving environment.
Implementation Method 1
The light emitting units are configured to emit a first light to the display panel. The display panel is configured to output a second light having the image.
Implementation Method 2
The sensor electrically connects to the processor, and detects an intensity of ambient light.
Data Source
AI summary
A vehicle optical system in a vehicle is provided. The vehicle optical system is configured to emit an image to a windshield of a vehicle. The vehicle optical system includes a processor, a display device, and a sensor. The display device electrically connects to the processor. The display device includes a display panel and a plurality of light emitting units. The light emitting units are configured to emit a first light to the display panel. The display panel is configured to output a second light having the image. The sensor electrically connects to the processor, and detects an intensity of ambient light. The processor is configured to modulate the display device to adjust the second light based on the intensity of the ambient light.