Vehicle Display Light Controller Layout to Limit Windshield Glare
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Solution Overview
Problem
Display devices installed under vehicle windshields cause reflections that distract drivers, compromising driving safety due to the reflection of the device's image through the windshield.
Innovation Solution
A display device with a light controller featuring light blocking patterns angled between 0° and 45° relative to the display panel's signal lines, reducing brightness towards the windshield and minimizing Moiré patterns to enhance driver visibility and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a display device is disposed under the windshield of a car, then the driver can access display information, 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 patent applies local quality by implementing light blocking patterns only in specific regions where reflections would reach the driver's eyes, rather than blocking light uniformly across the entire display. The light blocking patterns are strategically positioned to intercept reflected light paths from the windshield to the driver, while leaving other regions of the display fully visible and bright for normal viewing.
Solution Approach 2:
The patent utilizes color changes by employing light blocking patterns with specific optical properties that selectively absorb or block reflected light wavelengths. The patterns are designed with optical characteristics that target the specific reflection properties of windshield glass, reducing the intensity of reflected images while maintaining normal display visibility through selective optical filtering.
2Object-affected harmful factors
If light blocking patterns are added to reduce reflection, then driver distraction is reduced, but the display device structure becomes more complex
Solution Approach 1:
The patent merges the light blocking function with the existing display structure by integrating light blocking patterns directly into the display panel or its protective cover. This combination eliminates the need for separate external light blocking components, as the patterns are incorporated into the display device itself, thereby reducing overall system complexity while maintaining the reflection reduction function.
Solution Approach 2:
The patent employs thin film technology by implementing light blocking patterns as thin coating layers or printed patterns on the display surface. These thin film patterns provide the necessary light blocking functionality without adding significant thickness, weight, or structural complexity to the display device, maintaining a sleek and integrated appearance.
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 the display device's image towards the windshield, minimizing driver distraction and improving driving safety by reducing the reflection's impact on the driver's view.
Implementation Method 1
the light controller is disposed adjacent to the display panel and includes a plurality of light blocking patterns respectively extending along a second direction
Data Source
AI summary
A display device in application of a vehicle is provided. The display device includes a self-luminous display device and a non-self-luminous display device. At least one of the self-luminous display device and the non-self-luminous display device includes a display panel and a light controller. The display panel includes a plurality of first signal lines respectively extending along a first direction. The light controller is disposed adjacent to the display panel and includes a plurality of light blocking patterns respectively extending along a second direction, wherein the second direction has an angle with respect to the first direction, and an absolute value of the angle is greater than 0 degree and less than or equal to 45 degrees.