Display Coating Layout Using Hydrochromic Discoloration for Component Areas
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Solution Overview
Problem
Conventional display apparatuses face issues with reduced display quality due to low light transmittance and light reflection in component areas, which are designed to add additional functions beyond image display, leading to decreased image clarity.
Innovation Solution
Incorporation of a substrate with a component area and a display area, featuring a protective film and coating layers with irreversible hydrochromic materials that change color upon moisture contact, ensuring high light transmittance and reduced light reflectance, thereby enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a component area is added to the display apparatus for additional functions, then the functionality of the display apparatus is improved, but the light transmittance of the component area is reduced and light reflection increases, leading to decreased display quality
Solution Approach 1:
The coating layer is divided into two distinct regions: a first colored area corresponding to the display area and a second colorless area corresponding to the component area. This segmentation allows each region to have optimized optical properties - the colored area maintains high light absorption for display quality while the colorless area provides high light transmittance for component functionality, thereby resolving the contradiction between functionality and light transmittance.
Solution Approach 2:
Different regions of the coating layer are assigned different optical characteristics. The first colored area has high light absorption properties to enhance display area appearance, while the second colorless area has high light transmittance properties to allow component area functionality. This local differentiation of material properties enables simultaneous optimization of both display quality and component functionality without compromise.
2Adaptability or versatility
If a component area is added to the display apparatus for additional functions, then the functionality of the display apparatus is improved, but light reflection in the component area increases, leading to decreased display quality
Solution Approach 1:
The coating layer is segmented into a first colored area for the display area and a second colorless area for the component area. The colored first coating layer in the display area reduces light reflection to enhance display quality, while the colorless second coating layer in the component area maintains high light transmittance. This segmentation resolves the contradiction by allowing each region to address its specific optical challenge.
Solution Approach 2:
The coating layer exhibits local quality differentiation where the first colored area provides anti-reflective properties for the display area and the second colorless area provides high transmittance for the component area. This localized optimization of optical properties eliminates harmful light reflection in the display area while preserving component area functionality.
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 improves light transmittance and reduces light reflectance in component areas, maintaining or enhancing display quality by integrating colorless and colored areas with equal distances, thus optimizing the functionality and appearance of display apparatuses.
Implementation Method 1
The first coating layer including an irreversible discoloration material, a first colorless area corresponding to the component area and a first colored area corresponding to the display area. The irreversible discoloration material may be an irreversible hydrochromic material which is changed from a colored material to a colorless material upon contact with moisture.
Data Source
AI summary
A display apparatus includes a substrate including a component area and a display area, a display layer, and a first coating layer facing the display layer with the substrate therebetween, the first coating layer including an irreversible discoloration material having an initial color, a first colorless area corresponding to the component area and a first colored area corresponding to the display area and defined by a portion of the irreversible discoloration material having the initial color.