Anti-Reflection Member for Display Device Camera Hole
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Solution Overview
Problem
Display devices with optical elements, such as cameras, face issues with light deviations and image deterioration due to light reflection from the camera lens, which affect the transmittance and quality of images.
Innovation Solution
A display device design featuring a first substrate, a second substrate, an active element layer with through-holes, and an anti-reflection member with alternating refractive layers on the second substrate to reduce light deviations and reflections, enhancing light transmittance and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If elements are physically removed to increase optical hole transmittance, then light transmittance is improved, but light deviations and image deterioration occur
Solution Approach 1:
An anti-reflection member is introduced as an intermediary component between the optical hole and the external environment. This member includes a first refractive layer and a second refractive layer with different refractive indices, which mediate the light transmission process to reduce reflections and deviations while maintaining high transmittance
Solution Approach 2:
The anti-reflection member is constructed as a composite structure with multiple layers having different refractive indices. The first refractive layer and second refractive layer are combined to create a gradient refractive index structure that optimizes light transmission and minimizes harmful reflections
2Adaptability or versatility
If a camera lens is added to provide optical functionality, then imaging capability is improved, but light reflection causes image deterioration
Solution Approach 1:
The patent converts the harmful light reflection from the camera lens into a beneficial effect by using the reflected light path to illuminate the display area. The anti-reflection member manages the reflection to prevent image deterioration while maintaining imaging 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 effectively reduces light deviations and prevents image deterioration by increasing light transmittance and minimizing reflections from the optical element, improving the operational efficiency of the display device.
Implementation Method 1
The anti-reflection member comprises a first refractive layer disposed on the second surface of the second substrate and that has a refractive index greater than a refractive index of the second substrate, and a second refractive layer disposed on the first refractive layer and that has a refractive index less than the refractive index of the first refractive layer
Data Source
AI summary
A display device includes a first substrate, a second substrate that faces the first substrate, an active element layer disposed on a first surface of the first substrate that faces the second substrate and includes a first through-hole that penetrates therethrough in a thickness direction, and an anti-reflection member disposed on a second surface of the second substrate that faces the first substrate, overlaps the first through-hole, and is spaced apart from the first through-hole. The anti-reflection member includes a first refractive layer disposed on a second surface of the second substrate and that has a refractive index greater than a refractive index of the second substrate, and a second refractive layer disposed on the first refractive layer and that has a refractive index less than the refractive index of the first refractive layer.