Display Apparatus Insulating Layer Design for Component Integration
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Solution Overview
Problem
Existing display apparatuses face challenges in expanding their display area while accommodating components like sensors or cameras, requiring innovative designs to enhance image representation and functionality.
Innovation Solution
A display apparatus with a substrate featuring adjacent first and second areas for image display, including a transmission area and a pixel area, with specific insulating layers and a pixel electrode configuration that allows for improved light transmittance and reduced outgas flow, enabling efficient integration of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a component such as a sensor or camera is arranged in the display area, then the functionality and ability to graft components is increased, but the display area is reduced and image representation is compromised
Solution Approach 1:
The display area is segmented into a first area (with pixels for image display) and a second area (without pixels for component arrangement). This segmentation allows components like sensors or cameras to be arranged in the second area while the first area maintains full display functionality, thus resolving the contradiction between component integration and display area preservation.
2Area of stationary object
If the display area is expanded to enable image representation in areas with components, then the display area is increased, but the reliability is reduced due to outgas flow affecting the organic light-emitting diode
Solution Approach 1:
An inorganic insulating layer is introduced as an intermediary barrier between the substrate and the organic light-emitting diode. This layer prevents outgas flow from reaching the organic light-emitting diode, thereby maintaining reliability while allowing the display area to be expanded into areas with components.
Solution Approach 2:
The inorganic insulating layer is selectively positioned in the first area (display area) where image representation occurs, while the second area (component area) maintains direct substrate contact. This local differentiation allows the display area to expand without compromising the reliability of the organic light-emitting diode in regions where outgas flow is present.
3Ease of manufacture
If a conventional insulating layer configuration is used, then the manufacturing process is simple, but the light transmittance is reduced and display quality is compromised
Solution Approach 1:
The inorganic insulating layer is selectively formed only in the first area (display area) rather than uniformly across the entire substrate. This local quality approach maintains high light transmittance in the display region while providing outgas protection where needed, without significantly complicating the manufacturing process.
Data Source
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AI summary
A display apparatus includes a substrate having adjacent first and second areas for displaying an image, the first area including a transmission area and a pixel area, a first inorganic insulating layer on the transmission area and the pixel area, a thickness of the first inorganic insulating layer in the transmission area being less than a thickness of the first inorganic insulating layer in the pixel area, a second inorganic insulating layer on the first inorganic insulating layer to correspond to the pixel area, and defining a transmission hole corresponding to the transmission area, a first organic insulating layer on the second inorganic insulating layer, and a second organic insulating layer on the first organic insulating layer.