Display Device Light Transmission Suppression Layer Anti-Reflective Coating
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Solution Overview
Problem
Existing display devices face challenges in achieving high durability and sufficient low reflectance, while also allowing patterns to be visible when not in use, due to limitations in current anti-reflection and moth-eye film technologies which suffer from durability issues and variations in light reflectance.
Innovation Solution
A display device configuration featuring a light transmission suppression layer with an anti-reflection function, where the light transmission suppression layer has a specular reflectance comparable to the anti-reflection layer, and a light non-transmission section layer with a smaller second light transmission section area, allowing for high durability and low reflectance, along with pattern visibility when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a moth-eye film is used to achieve low reflectance, then specular reflectance is reduced, but the film is easily polluted and shows variation in light reflectance, resulting in low durability
Solution Approach 1:
The invention divides the anti-reflection function into two separate layers: a light transmission suppression layer that provides the primary anti-reflection effect and a light transmission section that allows light to pass through to the light-emitting section. This segmentation allows each layer to be optimized for its specific function, with the light transmission suppression layer providing durable anti-reflection properties without the pollution susceptibility of moth-eye films.
Solution Approach 2:
The light transmission suppression layer acts as an intermediary between the external environment and the light-emitting section. It provides the anti-reflection function while being positioned and structured to resist pollution, thereby mediating between the need for low reflectance and the need for durability.
2Area of stationary object
If display device units are arranged in a tiling-type configuration, then the display area is increased, but high smoothness of the surfaces of the image display sections is difficult to accomplish
Solution Approach 1:
The light transmission suppression layer serves multiple functions: it provides anti-reflection properties, maintains surface smoothness across tiling boundaries, and allows for the display of patterns when the device is not in use. This multi-functionality enables tiling-type configurations to achieve high surface smoothness while expanding the display area.
3Ease of manufacture
If patterns are drawn in the image display section when the display device does not operate, then visual effect is improved, but the anti-reflection coating may interfere with pattern visibility
Solution Approach 1:
The invention creates a dynamic system where the light transmission suppression layer can selectively transmit or suppress light based on the operational state. When the display device is not operating, the layer allows patterns to be visible; when operating, it suppresses light in non-emission areas to enhance image quality. This dynamic behavior resolves the contradiction between pattern visibility and anti-reflection performance.
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 proposed configuration achieves high image display quality with reduced specular reflectance and increased durability, while enabling pattern visibility when the device is not in operation, effectively addressing the limitations of existing technologies.
Implementation Method 1
an anti-reflection layer is formed in the light transmission section
Data Source
AI summary
A display device includes a first substrate, a second substrate, and a plurality of light emitting sections. The first substrate includes a first surface and a second surface which faces the first surface. The second substrate is arranged to face the first substrate, and is configured with a first surface which faces the second surface of the first substrate, and a second surface which faces the first surface. The plurality of light emitting sections is provided on the second surface of the first substrate while being separated from the second substrate. A light transmission suppression layer on which a light transmission section to transmit light from light emitting sections is provided is formed on the second surface of the second substrate in correspondence to each light emitting section. An anti-reflection layer is formed in the light transmission section.