Display Module Shutter Asymmetry Mitigates Moiré Phenomenon
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Solution Overview
Problem
The Moiré phenomenon occurs when periodically arranged pixels in a display panel are stacked with periodically arranged components, leading to undesirable display quality.
Innovation Solution
A display module with an electronically controlled shutter that includes a first and second polarizer, conductive layers, and supporting members arranged in a staggered manner with specific edge conditions to accommodate a display medium layer, where the arrangement pitch of the supporting members is larger than that of the pixels, effectively mitigating the Moiré phenomenon.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If periodically arranged components are stacked together with periodically arranged pixels in the display panel, then the components can be integrated in a compact structure, but a Moiré phenomenon is generated resulting in undesirable display quality
Solution Approach 1:
The supporting members are designed with asymmetric dimensions where the first dimension (X′) is greater than the second dimension (Y′), breaking the periodic symmetry that causes Moiré effects. This asymmetric configuration ensures that the supporting members do not align periodically with the pixels, thereby eliminating the Moiré phenomenon while maintaining structural integration.
Solution Approach 2:
The patent changes the dimensional parameters of the supporting members by establishing specific relationships between their dimensions and the pixel pitch (X′>X and Y′>Y but X′≠nX and Y′≠nY). This parameter modification disrupts the periodic alignment between supporting members and pixels, preventing Moiré effect generation while achieving compact structural integration.
2Object-affected harmful factors
If the arrangement pitch of supporting members is increased to reduce Moiré effect, then display quality is improved, but the cell gap structure becomes more complex
Solution Approach 1:
The cell gap structure is segmented into multiple functional layers including first and second conductive layers, display medium layer, and supporting members with specific dimensional relationships. This segmentation allows each component to fulfill its function independently while collectively achieving Moiré reduction without excessive overall complexity.
Solution Approach 2:
The supporting members serve multiple functions: they maintain the cell gap structure, provide electrical connection pathways through the conductive layers, and simultaneously act as Moiré reduction elements through their asymmetric dimensional design. This multi-functionality reduces the need for additional components, keeping the overall structure manageable.
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
This configuration improves display quality by reducing the Moiré effect, resulting in enhanced visual performance.
Implementation Method 1
The electronically controlled shutter includes a first polarizer, a second polarizer, a first conductive layer, a second conductive layer, a plurality of supporting members, and a display medium layer
Data Source
AI summary
A display module includes a display panel and an electronically controlled shutter including polarizers, conductive layers, supporting members, and a display medium layer. Each pixel of the display panel has a first edge and a second edge. A shape unit composed of any four supporting members adjacent to one another has a third edge and a fourth edge. An angle between the third edge and the first edge is larger than or equal to 0 degrees. An angle between the fourth edge and the second edge is larger than 0 degrees. Lengths of the first, second, third, and fourth edges are respectively X, Y, X′, and Y′. Any four supporting members adjacent to one another satisfy at least one of Condition 1: X′>X and X′≠nX; and Condition 2: Y′>Y and Y′≠nY, wherein n is a positive integer.