Color Electronic Paper Anti-UV Layer Chroma Stability

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The color display quality of conventional color electronic paper apparatuses deteriorates due to the chroma changes caused by heat and ultraviolet irradiation affecting the color resist layer.

Innovation Solution

Incorporating an anti-ultraviolet layer on the color resist layer, which is further protected by a protective sheet, to prevent chroma changes and enhance display quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a color resist layer is disposed on a display layer to convert black-and-white images into color images, then color display capability is improved, but chroma stability deteriorates due to heat and ultraviolet irradiation

Engineering Contradiction:

Improvecolor display capabilityVSAvoidchroma stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

An anti-ultraviolet layer is introduced as an intermediary component between the color resist layer and the external environment. This layer specifically blocks ultraviolet radiation and heat, preventing them from directly affecting the color resist layer's chroma while allowing the color display function to operate normally.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the harmful effect of ultraviolet irradiation and heat into a beneficial protective mechanism. By using the anti-ultraviolet layer to block these harmful factors, the originally problematic environmental conditions become controlled parameters that preserve chroma stability without compromising color display capability.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Ease of manufacture

If the color resist layer is exposed to ultraviolet irradiation and heat, then manufacturing process is simplified, but color display quality deteriorates

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoidcolor display quality

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The anti-ultraviolet layer is incorporated into the manufacturing process as a preliminary protective measure. This layer is applied during the manufacturing stage to preemptively protect the color resist layer from future ultraviolet exposure and heat, ensuring color display quality is maintained throughout the product's lifecycle without complicating the manufacturing process.

Inventive Principle:

Principle #10Preliminary action

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 anti-ultraviolet layer effectively blocks ultraviolet radiation, maintaining the chroma stability of the color resist layer and improving the overall color display quality of the electronic paper.

Implementation Method 1

The anti-ultraviolet layer is disposed on the color resist layer... the anti-ultraviolet layer effectively blocks ultraviolet radiation

Methodology Applied

Scientific EffectUltraviolet blocking: Absorption (EM radiation)

Data Source

PatentUS8854722B2Color electronic paper apparatus, display and manufacturing method thereof

Publication Date: 2014.10.07 E INK HLDG INC

AI summary

A color electronic paper apparatus includes a display layer, a color resist layer, an anti-ultraviolet layer and a protective sheet. The color resist layer is disposed on the display layer. The anti-ultraviolet layer is disposed on the color resist layer. The protective sheet is disposed on the anti-ultraviolet layer. A manufacturing method of the color electronic paper apparatus and a color electronic paper display are provided herein.