Pixel Electrode Layout for 3D Display Moiré Reduction

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Solution Overview

Problem

Grating-type 3D display devices suffer from moiré interference due to traditional pixel electrode structures, leading to reduced display quality.

Innovation Solution

A display panel design featuring pixel electrodes with a first electrode strip and comb-like structures connected to both sides, where the comb structures are composed of second electrode strips and slits, arranged alternately, and a folded line shape to minimize electrode skeletons at the edges, combined with data lines having overlapping areas in a specific isosceles triangle pattern to reduce dark areas and moiré interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional pixel electrode structures are used, then manufacturing is simpler, but moiré interference occurs and display quality deteriorates

Engineering Contradiction:
Improvedisplay qualityVSAvoidelectrode structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pixel electrode is segmented into multiple components: a first electrode strip and comb structures with multiple second electrode strips. This segmentation allows the electrode to avoid creating moiré patterns while maintaining manufacturing feasibility through a systematic divided structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pixel electrode adopts an asymmetric comb-like structure with first and second electrode strips arranged in a specific asymmetric pattern. This asymmetry disrupts the regular periodic structure that causes moiré interference, thereby improving display quality.

Inventive Principle:
Principle #4Asymmetry

2Manufacturing precision

If traditional pixel electrode structures with electrode skeletons at edges are used, then manufacturing is easier, but dark areas between sub-pixels increase

Engineering Contradiction:
Improvedark area widthVSAvoidelectrode structure fabrication
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The design extracts and removes the traditional electrode skeleton from the edge positions of the pixel electrode. By taking out the skeleton structure that causes dark areas, the patent reduces the width of dark regions between sub-pixels while maintaining ease of manufacture through the simplified comb structure.

Inventive Principle:
Principle #2Taking out (Extraction)

3Manufacturing precision

If data lines are arranged in traditional patterns, then routing is simpler, but moiré interference and dark areas increase

Engineering Contradiction:
Improvedisplay effectVSAvoiddata line arrangement
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The data lines are arranged in a folded line pattern that introduces a dimensional change in the routing layout. This folded arrangement, creating isosceles triangle overlapping areas, disrupts the linear periodic structure that causes moiré interference while maintaining manageable routing complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12517404B2Display panel and display device
Publication Date: 2026.01.06 FUZHOU BOE OPTOELECTRONICS TECH CO LTD
  • US12517404B2 patent drawing
  • US12517404B2 patent drawing
  • US12517404B2 patent drawing

AI summary

Embodiments of the present disclosure provide a display panel and a display device. The display panel comprises: a base substrate having multiple rows and multiple columns of sub-pixels; and a pixel electrode layer located on the base substrate, the pixel electrode layer comprising a plurality of pixel electrodes arranged apart from each other, and one sub-pixel comprising one pixel electrode, wherein the pixel electrode comprises: a first electrode strip and comb structures respectively connected to both sides of the first electrode strip, each comb structure consisting of a plurality of second electrode strips and a plurality of slits arranged alternately.