Anti-glare Layer Microstructures Prevent Sparkles
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Solution Overview
Problem
The anti-glare layer in display panels can cause sparkles, which negatively impact the user's viewing experience.
Innovation Solution
A display panel design that includes an anti-glare layer with microstructures on its top surface, where the root mean square slope of these microstructures and the thickness of the anti-glare layer are optimized to prevent internal haze and sparkles, ensuring a clear image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an anti-glare layer is added to reduce glare, then user comfort is improved, but sparkles are generated that affect viewing experience
Solution Approach 1:
The patent changes the physical parameters of the anti-glare layer by introducing microstructures with specific root mean square slope values (0.05 < RΔq ≤ 0.15) and controlling the layer thickness (0.3 mm ≤ L ≤ 1.0 mm). These parameter adjustments allow the anti-glare layer to reduce glare effectively while preventing the generation of sparkles, thus resolving the technical contradiction between glare reduction and sparkle prevention.
2Strength
If the anti-glare layer thickness is increased for protection, then durability is improved, but internal haze is generated that reduces image clarity
Solution Approach 1:
The patent optimizes the thickness parameter of the anti-glare layer to be within 0.3 mm to 1.0 mm. This parameter range provides sufficient protective strength while preventing internal haze formation that would compromise image clarity. The microstructure slope parameter (0.05 < RΔq ≤ 0.15) is also optimized to work synergistically with the thickness parameter to eliminate internal haze.
3Object-affected harmful factors
If scattering particles are added to the anti-glare layer, then anti-glare effect is improved, but internal haze is generated
Solution Approach 1:
The patent extracts and removes scattering particles from the anti-glare layer composition. Instead of using scattering particles to achieve the anti-glare effect, the invention uses microstructures on the surface with controlled slope values (0.05 < RΔq ≤ 0.15). This extraction of scattering particles eliminates the source of internal haze while maintaining the desired anti-glare performance.
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 optimized anti-glare layer design eliminates internal haze and sparkles, enhancing the clarity and definition of images displayed on the panel without compromising thickness for protection.
Implementation Method 1
A top surface of the anti-glare layer has a plurality of microstructures, and the microstructures have a root mean square slope RΔq
Data Source
AI summary
A display panel includes a display module and an anti-glare layer. The display module has a pixel density PPI, and the display module includes an upper substrate. The anti-glare layer is over the display module. A top surface of the anti-glare layer has a plurality of microstructures, and the microstructures have a root mean square slope RΔq. A thickness L from a bottom of the upper substrate of the display module to a top of the anti-glare layer complies with a following relational expression:L>0.001*PPIRΔq.