Display Device Light Blocking Patterns for Color Purity
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Solution Overview
Problem
Display devices experience image degradation and color shift when operated in private mode due to the color shift phenomenon, particularly under natural light conditions where image quality is compromised.
Innovation Solution
Incorporating light blocking layers with specific patterns on the display panel, where the light blocking layer adjacent to a smaller element area is positioned closer to the panel than the one adjacent to a larger element area, to prevent image degradation and maintain constant color purity across various viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If light blocking layers are added to reduce color shift in private mode, then color purity is improved, but device structure becomes more complex
Solution Approach 1:
The light blocking structure is segmented into multiple layers with different patterns. The first light blocking layer has a first pattern and the second light blocking layer has a second pattern, allowing each layer to address specific color shift issues at different depths, thereby improving color purity without requiring a single complex structure
Solution Approach 2:
Different light blocking patterns are applied to different regions corresponding to different element areas. The first light blocking pattern is positioned adjacent to a first element area while the second light blocking pattern is positioned adjacent to a second element area, allowing localized optimization of color purity for each region
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 color shift phenomenon and maintains image quality in private mode, ensuring brighter and more stable image display even in outdoor conditions with natural light exposure.
Implementation Method 1
a first light blocking pattern disposed on the display panel, the first light blocking pattern not overlapping the first area and overlapping the second-second element area of the second area; and a second light blocking pattern disposed on the display panel
Data Source
AI summary
A display device includes a display panel including first and second areas each including a plurality of element areas and a peripheral area, a first light blocking pattern disposed on the display panel and overlapping the second area, and a second light blocking pattern disposed on the display panel, overlapping the second area, and disposed farther away from the display panel than the first light blocking pattern. Each of first, second and third element areas of the second area includes a plurality of light emitting areas and a non-light-emitting area disposed between the light emitting areas, the first light blocking pattern overlaps the non-light-emitting area of the second element area, and the second light blocking pattern overlaps the non-light-emitting area of the first element area and the non-light-emitting area of the third element area.