Colored Specular OLED Screen Haze Layer for Glare Reduction
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Solution Overview
Problem
Current colored specular OLED display screens suffer from high specular reflectivity and dazzling effects, leading to discomfort and reduced image display ability due to improper brightness distribution, which can cause eye health issues.
Innovation Solution
A display apparatus with a structure comprising a display substrate, a cover plate, a colored specular layer with a metal reflecting layer and selective reflecting film layer, and a haze layer with a haze of 20%-30% between the substrate and cover plate, which reduces specular reflectivity and enhances matte appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a colored specular layer with metal reflecting layer is used to achieve bright color display, then color brightness is improved, but specular reflectivity increases causing dazzling effect and glare
Solution Approach 1:
A haze layer with haze value of 20%-30% is introduced as an intermediary between the colored specular layer and the external environment. This haze layer acts as a mediator that diffuses the reflected light, reducing the specular reflectivity and dazzling effect while preserving the color brightness from the underlying metal reflecting layer and selective reflecting film layer.
Solution Approach 2:
The patent changes the optical parameters of the display structure by controlling the haze value of the haze layer within a specific range of 20%-30%. This parameter optimization allows the system to achieve the right balance between maintaining color brightness and reducing glare, transforming the optical characteristics of the reflected light.
2Illumination intensity
If specular reflectivity is increased to enhance display brightness, then image display ability is improved, but visual comfort deteriorates due to glare and eye strain
Solution Approach 1:
The haze layer serves as an intermediary optical element that preserves the display brightness from the colored specular layer while mitigating the harmful glare effects. It diffuses the light path, reducing direct specular reflections that cause visual discomfort, thereby maintaining image display ability while improving visual comfort.
3Object-affected harmful factors
If a haze layer with high haze value is added to reduce glare, then visual comfort is improved, but color brightness and image clarity deteriorate
Solution Approach 1:
The patent optimizes the haze value parameter within the specific range of 20%-30% to achieve the desired balance. This controlled parameter change ensures sufficient light diffusion for visual comfort while preventing excessive haze that would diminish color brightness and image clarity, thus resolving the contradiction between comfort and brightness.
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 provides a display screen with soft brightness, bright colors, and a matte feeling, improving visual comfort and image clarity while reducing glare and eye strain.
Implementation Method 1
a colored specular layer, located between the display substrate and the cover plate, and including a metal reflecting layer and a selective reflecting film layer
Implementation Method 2
a colored specular layer, located between the display substrate and the cover plate, and including a metal reflecting layer and a selective reflecting film layer
Implementation Method 3
a haze layer, located between the display substrate and the cover plate, and having a haze of 20%-30%
Data Source
AI summary
The present application discloses a display device. The display device provided by the present application includes: a display substrate and a cover plate; a colored specular layer located between the display substrate and the cover plate, and including a metal reflecting layer and a selective reflecting film layer, the metal reflecting layer being located between the selective reflecting film layer and the display substrate; and a haze layer located between the display substrate and the cover plate, and having a haze of 20%-30%.