Display Light Transmitting Structure for Integrated Optical Components
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Solution Overview
Problem
Conventional portable electronic devices have limited display space due to the presence of camera, flash, and optical sensor components outside the display area, reducing the area available for image display.
Innovation Solution
A display device manufacturing method that creates a light transmitting area within the display area, allowing for the integration of camera and other components, featuring a first substrate with a display area, interlayer insulating layer, and an inorganic film, enabling larger light transmitting areas that accommodate optical members like cameras and flashes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If camera, flash, and optical sensor components are placed outside the display area, then these components can be properly housed, but the display space is reduced
Solution Approach 1:
The patent merges the camera, flash, and optical sensor components into a single integrated optical assembly that is positioned within the display area. This consolidation allows multiple components to share a common structure and space, enabling them to be housed within the display area without proportionally increasing the space required, thus expanding the effective display space while maintaining component functionality.
Solution Approach 2:
The patent implements a nested arrangement where the optical assembly is integrated within the display structure. The camera, flash, and optical sensor are arranged in a compact nested configuration that allows them to occupy minimal space within the display area, enabling the display space to be expanded while still accommodating all necessary optical components.
2Area of stationary object
If a light transmitting area is created within the display area to accommodate optical components, then display space is expanded, but moisture penetration risk increases
Solution Approach 1:
The patent employs a waterproof encapsulation layer that forms a flexible barrier over the light transmitting area. This thin film encapsulation protects the optical components from moisture penetration while allowing light to transmit through the designated area. The encapsulation layer conformally covers the optical assembly, creating a moisture-proof barrier that does not compromise the light transmission function.
Solution Approach 2:
The patent uses composite material structures for the encapsulation and protective layers. The waterproof encapsulation layer is formed as a composite structure that combines moisture barrier properties with optical transparency. This composite material approach allows the light transmitting area to maintain both its light transmission capability and its protection against moisture penetration.
3Adaptability or versatility
If the light transmitting area is made larger to accommodate optical components, then component integration is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the light transmitting area formation process into multiple sequential steps. The encapsulation layer is formed first, followed by the optical assembly integration, and then the display layer is added. This segmentation of the manufacturing process allows each step to be optimized independently, reducing the overall manufacturing precision requirements while still achieving accurate component integration within the light transmitting area.
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
This method effectively expands the display space by integrating optical components within the display area, enhancing light transmittance and preventing moisture penetration, thus improving the overall display functionality and efficiency.
Implementation Method 1
The sacrificial layer is separated from the first substrate by pulling the sacrificial layer with a vacuum adsorption member
Data Source
AI summary
A display device includes a first substrate including a display area in which a plurality of pixels are arranged and a light transmitting area disposed in the display area, an interlayer insulating layer covering the display area and exposing the light transmitting area, an inner sidewall of the interlayer insulating layer defining the light transmitting area, and an inorganic film disposed directly on the first substrate in the light transmitting area and overlapping the entire light transmitting area. A size of the light transmitting area is larger than a size of a pixel of the plurality of pixels.