Display Plasma Module Double-Layer Microstructure

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current electrophoretic display technologies using microcapsule and micro-cup structures suffer from poor display function, increased thickness leading to decreased contrast and resolution, slow response speed, high driving voltage, and complex and costly manufacturing processes.

Innovation Solution

A display plasma module with a double-layer microstructure featuring a plasma barrier array and spacer particle layer is used to disperse and stabilize the display plasma between pixel and transparent electrodes, eliminating the need for micro-cup or microcapsule structures, thereby improving display effect and reducing manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If microcapsule or micro-cup structures are used to disperse and coat the display plasma, then the display plasma can be contained and dispersed, but the thickness of the electrophoretic display material layer increases, decreasing contrast and resolution

Engineering Contradiction:
Improvedispersion stability of display plasmaVSAvoidthickness of electrophoretic display material layer
Core Design Contradiction:
Stability of the object's compositionVSLength of stationary object

Solution Approach 1:

The patent extracts and removes the microcapsule or micro-cup structures from the electrophoretic display system, replacing them with a flat substrate structure. This extraction eliminates the unnecessary thickness contribution from spherical or cup-shaped encapsulation structures while maintaining the essential function of containing and dispersing the display plasma through alternative means such as electrode arrangements and control circuits.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the functions of plasma containment, dispersion, and electrode support into a single flat substrate structure. Instead of using separate microcapsule structures that combine containment and support functions, the invention integrates these functions into a planar configuration where the substrate itself provides structural support and the electrode arrangements facilitate plasma dispersion and control.

Inventive Principle:
Principle #5Merging (Combining)

2Stability of the object's composition

If microcapsule or micro-cup structures are used, then the display plasma can be contained, but the response speed decreases and driving voltage increases

Engineering Contradiction:
Improvecontainment of display plasmaVSAvoidresponse speed
Core Design Contradiction:
Stability of the object's compositionVSSpeed

Solution Approach 1:

The patent extracts the microcapsule or micro-cup structures that were causing response delays and high driving voltage requirements. By removing these encapsulation structures and transitioning to a flat substrate design, the electrical resistance and capacitance are reduced, enabling faster response speeds and lower driving voltages while maintaining effective plasma containment through the redesigned electrode and control circuit architecture.

Inventive Principle:
Principle #2Taking out (Extraction)

3Stability of the object's composition

If microcapsule or micro-cup structures are used, then the display plasma can be dispersed, but the manufacturing process becomes excessively complex and costly

Engineering Contradiction:
Improvedispersion of display plasmaVSAvoidcomplexity of preparation process
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the complex microcapsule or micro-cup manufacturing processes from the production line. By adopting a flat substrate structure, the manufacturing process is simplified to standard flat panel fabrication techniques, removing the need for intricate three-dimensional encapsulation processes while maintaining effective plasma dispersion through planar electrode patterns and control circuitry.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the structural parameters from three-dimensional microcapsule or micro-cup geometries to two-dimensional flat substrate configurations. This parameter change fundamentally simplifies the manufacturing process, allowing the use of conventional flat panel display fabrication techniques instead of complex micro-encapsulation processes, while achieving the same plasma dispersion function through modified electrode arrangements.

Inventive Principle:
Principle #35Parameter changes

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 enhances display contrast by over 10%, reduces response time, lowers driving voltage, expands temperature range, and simplifies manufacturing, while maintaining the stability and orderliness of electrophoretic particle movement.

Implementation Method 1

Electrophoresis display uses the electrophoresis phenomenon of charged colloidal particles under the action of an electronic field. The electrophoretic display of images and characters is realized by driving electrophoretic particles with different photoelectric properties by an electronic field.

Methodology Applied
Scientific EffectElectrophoresis: Electrophoresis

Implementation Method 2

a spacer particle layer is adsorbed on the plasma barrier array

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentUS11644731B2Display plasma module with double-layer microstructure and manufacturing method thereof
Publication Date: 2023.05.09 WUXI VISION PEAK TECH
  • US11644731B2 patent drawing

AI summary

A display plasma module with a double-layer microstructure includes a pixel electrode and a transparent electrode located above the pixel electrode. A display plasma and a liner frame surrounding the display plasma are arranged between the pixel electrode and the transparent electrode. A plasma barrier array used for uniformly dispersing and stabilizing the display plasma is arranged on the pixel electrode and/or the transparent electrode, and a spacer particle layer is adsorbed on the plasma barrier array. The display plasma module directly uses the display plasma to replace the micro-cup structure or the microcapsule structure, and is provided with the plasma barrier array and the spacer particle layer used for uniformly dispersing, stabilizing and isolating the display plasma, which has a function of supporting the whole display plasma module and controlling the thickness of the display plasma.