Vehicle Display Light Controller for Windshield Reflection Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
When a display device is installed under a vehicle's windshield, the reflected image can disturb the driver and affect driving safety due to the inability to clearly see the outside environment.
Innovation Solution
A display system comprising two display devices, one with a display panel and a light controller, where the light controller has patterns extending in a direction different from the signal lines, reducing the brightness of light emitted towards the windshield and minimizing Moiré patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a display device is disposed under the windshield of the car, then the driver can access information through the display, but the image of the display device is reflected back to the driver's eyes through the windshield, causing distraction and affecting driving safety
Solution Approach 1:
The light controller is positioned adjacent to the display panel and includes patterns that selectively control light emission in different directions. The patterns are configured to reduce light emission towards the windshield while maintaining display visibility for the driver, creating local directional control of light properties
Solution Approach 2:
The light controller changes the brightness parameter of light emitted towards the windshield by using patterns that block or reduce light in that specific direction. This parameter modification reduces the intensity of reflected light reaching the driver's eyes while preserving necessary display functionality
2Device complexity
If the light controller uses patterns extending along the same direction as signal lines, then the structure is simpler, but Moiré patterns are generated causing visual interference
Solution Approach 1:
The light controller patterns are configured to extend along a second direction that is different from the first direction of the signal lines. This asymmetric angular relationship between the light controller patterns and signal lines prevents the formation of Moiré patterns while maintaining structural feasibility
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 solution effectively reduces the brightness of light reflected from the windshield, minimizing driver distraction and enhancing driving safety by reducing the visibility of the display's image and minimizing Moiré patterns.
Implementation Method 1
The light controller is disposed adjacent to the display panel and includes a plurality of patterns respectively extending along a second direction... effectively reduces the brightness of light reflected from the windshield
Implementation Method 2
an image of the display device is reflected back to eyes of a driver through the windshield of the car
Data Source
AI summary
The present disclosure provides a display in application of a vehicle. The display includes two display devices, in which at least one of the two display devices includes a display panel and a light controller. The display panel includes a plurality of signal lines respectively extending along a first direction. The light controller is disposed adjacent to the display panel and includes a plurality of patterns respectively extending along a second direction, in which the second direction is different from the first direction. The display devices are arranged along the first direction.