Display Substrate Anode Structure for Moire-Free 3D Sub-Pixels
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Solution Overview
Problem
Existing naked-eye 3D display technologies face issues such as low PPI, small 3D viewing angle, poor user experience, and the generation of Moire fringes due to subdivided sub-pixels with large gaps and discontinuous anode structures, which limit high-resolution 3D display and seamless splicing.
Innovation Solution
A display substrate design featuring independent driving circuits for sub-pixel components with anodes connected via vias on a planarization layer, incorporating protrusions to reduce anode gaps and ensure continuous luminescence, using a multi-layer anode structure with conductive layers to prevent oxidation and enhance coating performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sub-pixels are subdivided into multiple sub-pixel components to increase PPI, then display resolution is improved, but gaps between sub-pixel components increase causing Moire fringes and discontinuous luminescence
Solution Approach 1:
The anode is designed with a convex arc-shaped curved surface instead of a flat surface. This curvature allows the anode to closely follow the profile of the protrusion, reducing gaps between adjacent sub-pixel components and eliminating Moire fringes while maintaining continuous luminescence across the subdivided sub-pixels
Solution Approach 2:
The invention transitions from a two-dimensional planar anode structure to a three-dimensional convex arc-shaped structure. By adding vertical dimensionality through the curved surface that follows the protrusion profile, the anode achieves better contact with the underlying structure and reduces lateral gaps between sub-pixel components
2Manufacturing precision
If sub-pixels are subdivided into multiple sub-pixel components to increase PPI, then display resolution is improved, but anode structure becomes discontinuous causing poor luminescence
Solution Approach 1:
The convex arc-shaped curved surface of the anode enables continuous luminescence by maintaining a seamless structure across sub-pixel boundaries. The curved profile follows the protrusion geometry, ensuring that the anode remains structurally continuous even as it conforms to the subdivided pixel architecture
Solution Approach 2:
The invention merges the anode structure with the protrusion geometry by designing the anode to closely follow the protrusion profile. This integration ensures that the anode acts as a unified continuous structure across multiple sub-pixel components, eliminating discontinuities that would otherwise disrupt luminescence
3Ease of manufacture
If flat anode structure is used for simple manufacturing, then ease of manufacture is improved, but coating performance is poor and oxidation resistance is reduced
Solution Approach 1:
The anode is designed with a convex arc-shaped curved surface that locally adapts to the protrusion geometry. This localized curvature optimization improves coating performance and oxidation resistance in the critical regions where the anode contacts the protrusion, while maintaining manufacturability through a relatively simple overall structure
Data Source
AI summary
Proposed are a display substrate, a manufacturing method thereof and a display device. The display substrate includes a base and multiple pixel units disposed on the base, wherein, at least one pixel unit of the multiple pixel units includes multiple sub-pixels with different colors, and at least one sub-pixel of the multiple sub-pixels includes multiple sub-pixel components with the same color; anodes of the sub-pixel components are electrically connected with driving circuits, and the driving circuits are independent of each other, and in a plane perpendicular to the display substrate, a side of the anode of the sub-pixel component away from the base at least includes a partial surface, and a normal of the partial surface is not perpendicular to the base.