Display Panel Light Shielding Layer with Scattering Pattern
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Solution Overview
Problem
Existing display panels face challenges in effectively shielding unwanted light leakage at the periphery, which affects the display effect due to the lack of efficient light shielding mechanisms.
Innovation Solution
Incorporating a scattering pattern underneath a light shielding layer, which provides a rough surface to scatter light and reduce transmittance, thereby enhancing the light shielding effect while potentially reducing the thickness and material cost of the light shielding layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light shielding layer is disposed along the periphery of the display panel to form a ring-like shape, then the unwanted light leakage at the periphery may be shielded or mitigated, but the display effect may still be insufficient due to light transmittance and reflectance
Solution Approach 1:
A scattering pattern is formed on the first substrate before disposing the light shielding layer. This preliminary scattering structure pre-deflects light paths, enhancing the subsequent light shielding effect when the light shielding layer is added, thereby achieving better overall light leakage prevention and display effect.
Solution Approach 2:
The solution combines the scattering pattern (formed by etching or coating on the substrate) with the light shielding layer to create a composite light shielding structure. This composite structure leverages both the light scattering properties of the pattern and the light absorption/blocking properties of the shielding layer material, achieving superior light leakage mitigation.
2Object-affected harmful factors
If the light shielding layer is made thicker or uses more material to improve light shielding effect, then the light leakage shielding may be enhanced, but the device complexity and material cost increase
Solution Approach 1:
The scattering pattern is formed in advance on the substrate, creating a light-deflecting structure before the light shielding layer is applied. This preliminary scattering action reduces the amount of light that reaches the shielding layer, allowing for a thinner shielding layer to achieve the same overall light shielding effect, thereby reducing device complexity and material usage.
Solution Approach 2:
The scattering pattern is specifically formed only in the peripheral region where light leakage is problematic, rather than uniformly across the entire substrate. This localized approach provides enhanced light shielding exactly where needed while minimizing additional device complexity and material cost in non-critical areas.
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 scattering pattern significantly reduces light transmittance and reflectance, achieving enhanced optical density and improved display effects with a thinner and more cost-effective light shielding layer.
Implementation Method 1
the scattering pattern may provide the light scattering effect to reduce the light transmittance at the region where the light shielding region is
Data Source
AI summary
A display panel is provided and includes a first substrate, a second substrate, a light shielding layer, a scattering pattern, a sealant, and a display medium layer. The second substrate is opposite to the first substrate. The light shielding layer is disposed on a top surface of the first substrate away from the second substrate. The scattering pattern is disposed underneath the light shielding layer. The sealant is disposed between the first substrate and the second substrate and shielded by the light shielding layer. The display medium layer is disposed between the first substrate and the second substrate and surrounded by the sealant.