Display Layer Layout for Light-Transmissive Component Areas
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Solution Overview
Problem
Display devices face challenges in improving light transmittance in transmission areas while maintaining reliability, particularly in components areas where additional functions are integrated, leading to reduced performance and potential damage from external factors.
Innovation Solution
A display device design featuring a substrate with a first inorganic layer, a blocking layer with defined openings, and a display element layer, including specific semiconductor and metal layers to enhance light transmittance and protect against external factors, while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a component area is added to the display device to integrate additional functions, then the functionality and area of the display device are improved, but the light transmittance in the transmission area deteriorates and reliability is reduced
Solution Approach 1:
The component area is divided into a first pixel area and a transmission area, allowing different functional regions within the same component area. This segmentation enables the transmission area to maintain high light transmittance while the first pixel area provides display functionality, thus resolving the contradiction between adding functionality and maintaining reliability.
Solution Approach 2:
Different regions of the component area are assigned different properties: the first pixel area contains display elements with specific optical characteristics, while the transmission area is designed with enhanced light transmittance properties. This local differentiation allows each region to optimize its function without compromising the overall device reliability.
2Reliability
If the first inorganic layer is continuously arranged in the transmission area to protect against external factors, then reliability is improved, but light transmittance deteriorates
Solution Approach 1:
The first inorganic layer is selectively positioned only in regions where protection is needed, rather than being continuously arranged across the entire transmission area. This localized approach maintains reliability in critical regions while preserving light transmittance in areas where optical performance is prioritized.
Solution Approach 2:
The protective inorganic layer is segmented and placed only in specific sub-regions of the transmission area rather than forming a continuous barrier. This segmentation allows light to pass through most of the transmission area while providing targeted protection where external factor resistance is most critical.
3Illumination intensity
If openings are defined through the first inorganic layer and blocking layer to improve light transmittance, then light transmittance is improved, but structural integrity and protection are reduced
Solution Approach 1:
The openings are segmented and positioned only in specific regions where light transmittance is prioritized, rather than creating a continuous open structure. This segmented approach allows light to pass through designated areas while maintaining the protective function of the inorganic and blocking layers in other critical regions.
Solution Approach 2:
Different regions of the layered structure have different properties: areas with openings provide high light transmittance, while areas where the inorganic and blocking layers remain continuous provide enhanced protection. This local differentiation resolves the contradiction between light transmittance and structural integrity.
Data Source
AI summary
A display device includes: a substrate including a display area including a first pixel area, a component area adjacent to the display area, and a non-display area adjacent to the display area, where the component area includes a second pixel area and a transmission area, and the non-display area includes a bending area; a first inorganic layer continuously arranged in the transmission area on the substrate, where a lower opening overlapping the bending area is defined through the first inorganic layer; a blocking layer on the first inorganic layer, a blocking layer opening overlapping the transmission area and an intermediate opening overlapping the lower opening are defined through the blocking layer; and a display element layer on the blocking layer, where the display element layer includes a first display element overlapping the first pixel area and a second display element overlapping the second pixel area.