OLED Substrate Metal Reflection Layer for 3D Display Moire Reduction
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Solution Overview
Problem
In 3D display devices, the large gap between adjacent sub-anodes leads to Moiré patterns due to lens magnification, affecting the display effect.
Innovation Solution
An organic light-emitting display substrate with a metal reflection layer and sub-anodes arranged at specific intervals, where the metal reflection patterns correspond to each pixel and overlap with sub-anode projections, reducing the distance between adjacent sub-anodes to less than 3.5 μm or 2 μm, and optionally greater than 0.5 μm, to minimize Moiré patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the gap between adjacent sub-anodes is reduced to minimize Moiré patterns, then the display effect is improved, but the manufacturing precision requirement increases
Solution Approach 1:
The patent applies parameter changes by precisely controlling the distance between adjacent sub-anodes to be less than or equal to 3.5 μm (or 2 μm in some embodiments). This specific parameter adjustment reduces the gap that causes Moiré patterns when magnified by the lens, thereby improving the 3D display effect while maintaining manufacturability through defined threshold values.
2Object-affected harmful factors
If the distance between adjacent sub-anodes is reduced to less than 3.5 μm, then the Moiré patterns are minimized, but the manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by introducing a metal reflection layer with specific local properties between the substrate and the sub-anodes. This layer has high reflectivity in specific regions, creating localized optical effects that reduce Moiré patterns. The metal reflection layer is insulated from the sub-anodes and includes multiple separated patterns, each corresponding to a pixel, providing localized quality enhancement without increasing overall device complexity.
3Object-affected harmful factors
If a metal reflection layer is added to reduce Moiré patterns, then the display effect is improved, but the device structure becomes more complex
Solution Approach 1:
The patent applies the intermediary principle by introducing a metal reflection layer as a mediator between the substrate and the sub-anodes. This intermediate layer reflects light locally to reduce Moiré patterns caused by lens magnification. The metal reflection layer is insulated from the sub-anodes through an insulating layer, preventing electrical interference while providing optical benefits. This mediator structure resolves the contradiction by adding functionality without creating direct structural conflicts.
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 solution reduces Moiré patterns, thereby improving the display effect by controlling the distance between sub-anodes and eliminating the influence of Moiré patterns in 3D displays.
Implementation Method 1
a metal reflection layer, the metal reflection layer is located between the base substrate and a layer where the plurality of sub-anodes is located... the metal reflection layer includes a plurality of metal reflection patterns separated from each other
Data Source
AI summary
Provided are an organic light-emitting display substrate, a manufacturing method thereof and a display device. The display substrate includes a base substrate, a metal reflection layer and multiple pixels. Each pixel includes multiple sub-anodes. The metal reflection layer is between the base substrate and a layer where the multiple sub-anodes are located. The metal reflection layer is insulated from the layer where the sub-anodes are located, the metal reflection layer includes multiple metal reflection patterns separated from each other, and each metal reflection pattern corresponds to one pixel. An orthographic projection of each metal reflection pattern onto the base substrate overlaps with orthographic projections of the multiple sub-anodes of the corresponding pixel onto the base substrate. The sub-anodes of each pixel are arranged at intervals, and a distance between orthographic projections of two adjacent sub-anodes onto the base substrate is less than or equal to a first preset threshold.