Viewing Angle Diffusion Film Staggered Refractive Protrusions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing viewing angle diffusion films for liquid crystals suffer from reduced light transmittance and display brightness due to Moire patterns caused by the superposition of refractive protrusions, which negatively impact display quality at large viewing angles.
Innovation Solution
A viewing angle diffusion film with a substrate and refractive protrusions arranged in a staggered layout, where each column's initial positions are not on the same straight line, reducing the Moire effect and improving display quality by periodically changing the staggered distance between adjacent protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a stripe-shaped viewing angle diffusion film is used, then the display brightness at large viewing angles is improved, but Moire patterns appear reducing the display quality
Solution Approach 1:
The patent applies asymmetry by designing refractive protrusions with non-uniform spacing arrangements. Specifically, the distance between adjacent refractive protrusions varies in a periodic manner rather than being uniform, which disrupts the formation of Moire patterns while maintaining viewing angle diffusion capabilities. This asymmetric spacing prevents the regular interference patterns that cause Moire effects.
Solution Approach 2:
The patent transitions from a simple stripe pattern to a two-dimensional array of refractive protrusions with controlled spacing variations. By arranging protrusions in rows and columns with periodic distance variations, the solution adds dimensional complexity to the pattern design, effectively eliminating Moire patterns while preserving the viewing angle diffusion function.
2Manufacturing precision
If resolution of the viewing angle diffusion film is increased, then the display quality is improved, but the aperture ratio of pixel electrode decreases reducing light transmittance
Solution Approach 1:
The patent changes the geometric parameters of the refractive protrusions, specifically optimizing their size, shape, and spacing to achieve high resolution effects with smaller aperture occupation. By carefully controlling parameters such as the height, width, and periodic variation of protrusion distances, the film achieves high resolution without proportionally increasing the aperture ratio, thus maintaining light transmittance.
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 staggered arrangement of refractive protrusions enhances display brightness and reduces Moire patterns, thereby improving the overall quality of the display panel by minimizing the negative effects of existing viewing angle diffusion films.
Implementation Method 1
a plurality of refractive protrusions forming a plurality of columns of refractive protrusions in parallel
Implementation Method 2
The Moire pattern is caused by the superposition of two small periodic patterns of refractive protrusions of the viewing angle diffusion film, thereby producing a greater periodic pattern
Data Source
AI summary
A viewing angle diffusion film and a display panel are provided, including a substrate and a plurality of refractive protrusions. Through arranging two adjacent refractive protrusions in a staggered layout with changes periodically in each column of refractive protrusions, that is, initial positions of each column of refractive protrusions are not on a same straight line, a Moire effect can thereby be reduced, improving a quality of the display panel.