Voronoi Partitioned Display Medium for Multi-Directional Color Gamut

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Solution Overview

Problem

Existing display media with narrow color gamut and low brightness struggle to effectively display diverse content in multiple directions, limiting their ability to convey information efficiently.

Innovation Solution

A display medium with a substrate featuring virtual cells and a partition structure, where the partition has exposed faces with colors that change based on the viewing direction, utilizing a Voronoi diagram to optimize color distribution and visibility, and a processing device/program to calculate and determine colors for sub-cells to enhance brightness and color gamut.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a projecting member with a single color is used in the display medium, then the structure is simple, but the color gamut is narrow

Engineering Contradiction:
Improvestructure simplicityVSAvoidcolor gamut
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The display medium is divided into multiple sub-cells within each cell, with each sub-cell containing a projecting member of a specific color. This segmentation allows the system to achieve a wide color gamut by combining multiple colors while maintaining structural simplicity at the individual component level.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions (sub-cells) of the display medium are assigned different colors locally. Each projecting member has a specific color optimized for its location, and the combination of these local color variations creates a wide overall color gamut without requiring complex individual components.

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If content is displayed in some colors provided on the flat member, then the manufacturing is simple, but the brightness of each content is low

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidbrightness
Core Design Contradiction:
Ease of manufactureVSIllumination intensity

Solution Approach 1:

The invention transitions from a two-dimensional flat surface to a three-dimensional structure by adding projecting members that extend perpendicular to the flat member. This dimensional change allows light to interact with the colorants from multiple angles and paths, significantly enhancing brightness while maintaining the simplicity of providing colors on the flat substrate.

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

Solution Approach 2:

By dividing the flat member into multiple sub-cells with projecting members, the system increases the effective surface area and light interaction volume for each color region. This segmentation enables each content area to display with higher brightness while the overall manufacturing process remains simple.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If a flat member with color applications is used, then the manufacturing is simple, but the ability to display multiple contents in different directions is limited

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidmulti-directional display capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The invention adds the third dimension by creating projecting members that extend from the flat member. This dimensional transformation enables the display medium to present different content to observers from different directions, as the projecting members create direction-dependent visibility of different colored sub-cells, while the base manufacturing process remains simple.

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

Solution Approach 2:

The display medium achieves dynamic, direction-dependent content display through its three-dimensional structure. As the observer's viewing angle changes, different faces of the projecting members become visible, dynamically changing the displayed content without requiring active control mechanisms, thus maintaining manufacturing simplicity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11961421B2Display medium, processing device, and processing program
Publication Date: 2024.04.16 DOWANGO KK
  • US11961421B2 patent drawing
  • US11961421B2 patent drawing
  • US11961421B2 patent drawing

AI summary

A display medium with a substrate provided with a plurality of virtual cells C, and, on the cell C, a partition P having a plurality of surfaces respectively formed on a plane that intersects with the substrate and exposed when the display medium is viewed from a plurality of directions. A portion exposed when the display medium is viewed from a predetermined direction among the plurality of directions is given the color of a content corresponding to the predetermined direction. The display medium displays different contents in the plurality of directions, respectively.