Vehicle Display Panel Light-Blocking Layout for Window Glare Control
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Solution Overview
Problem
Display apparatuses mounted in vehicles can reflect light onto window glass, obstructing the driver's vision and posing a safety hazard.
Innovation Solution
A display panel design with specific light blocking lines and layers to control light emission, ensuring light is emitted within a narrow viewing angle and reducing reflections onto vehicle windows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display panel emits light in a wide viewing angle, then the image quality and brightness are improved, but light reflects onto vehicle windows obstructing driver vision
Solution Approach 1:
The patent applies local quality by making different parts of the display structure have different optical properties. Specifically, the light blocking lines have different widths in different directions (first width in row direction > second width in column direction), creating anisotropic light blocking that allows wide viewing angle brightness while preventing upward light reflection that causes window glare.
Solution Approach 2:
The patent uses asymmetry in the light blocking line design where the first width (row direction) is greater than the second width (column direction). This asymmetric structure selectively blocks light in the column direction (preventing window reflection) while maintaining light emission in the row direction (preserving viewing angle and brightness).
2Object-affected harmful factors
If light blocking lines are added to control light direction, then light reflection is reduced, but device complexity increases
Solution Approach 1:
The patent segments the light blocking function into multiple light blocking lines with different widths arranged in a grid pattern. Rather than using a single complex light blocking structure, the display panel uses simplified rectangular light blocking lines that are easier to manufacture while achieving the same light control effect through their collective arrangement and dimensional asymmetry.
Data Source
AI summary
A display panel is disclosed that includes a substrate, a first light blocking line, a second light blocking line, and a third light blocking line located on the substrate. The first, second, and third light blocking lines extend in a first direction in a plan view, and are spaced apart from one another in a second direction that intersects the first direction. A first display element and a second display element are located between the first light blocking line and the second light blocking line and respectively emit light of a first color and light of a second color. A third display element is located between the second light blocking line and the third light blocking line and emits light of a third color.