3D Display Panel Sidewall Emitters for Wider Viewing Angles
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Solution Overview
Problem
Current 3D display panels, such as raster and column lenticular display panels, have limited viewing angles due to structural constraints, making it difficult to achieve large viewing angle displays.
Innovation Solution
A display panel design featuring a substrate with a first interlayer having convex portions, where light-emitting elements are disposed on the side walls of these convex portions, allowing their light-emitting surfaces to extend in a specific direction with an acute angle relative to the substrate, thereby increasing the light-emitting angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-emitting elements are disposed on side walls of convex portions with acute angle orientation, then the light-emitting angle and viewing angle range are increased, but the device structure becomes more complex
Solution Approach 1:
The patent transitions from conventional planar light-emitting element arrangement to a three-dimensional configuration where elements are positioned on the side walls of convex portions at acute angles. This dimensional change enables light emission in multiple directions simultaneously, expanding the viewing angle range while maintaining a relatively compact overall structure.
Solution Approach 2:
The display panel structure is segmented into multiple convex portions with light-emitting elements positioned on their side walls. Each convex portion acts as an independent light-emitting unit with specific angular orientation, and the collective arrangement of these segmented units achieves the desired wide viewing angle effect.
2Adaptability or versatility
If light-emitting elements are arranged on side walls of convex portions, then the viewing angle range is increased, but the manufacturing precision requirements increase
Solution Approach 1:
The convex portions are pre-formed on the substrate before the light-emitting elements are positioned and mounted. This preliminary formation of the geometric structure provides predetermined positioning references that guide the subsequent placement of light-emitting elements, thereby reducing the actual positioning precision requirements during assembly.
Solution Approach 2:
The patent applies different geometric configurations to different regions of the display panel through the convex portions. Each convex portion has specific local geometric properties (side walls at acute angles) that are optimized for its particular position, allowing the overall system to achieve wide viewing angles without requiring uniform high precision across all elements.
Data Source
AI summary
Disclosed is a display panel. The display panel includes a substrate, first interlayer disposed on the substrate, and a light-emitting element layer disposed on one side of the first interlayer away from the substrate. A plurality of first convex portions are disposed on one side of the first interlayer away from the substrate. The light-emitting element layer includes a plurality of light-emitting elements disposed on the plurality of first convex portions. At least some of the plurality of light-emitting elements are disposed on side walls of the plurality of first convex portions. A light-emitting surface of each of the plurality of light-emitting elements extends in a first direction, an included angle formed between the first direction and a second direction is an acute angle, and the second direction is a direction in which the substrate points towards the first interlayer.