Transparent Display Trench Contacts for Light and Moisture Control
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Solution Overview
Problem
Transparent display apparatuses face challenges with high manufacturing costs and increased energy consumption due to the need for multiple varieties and processes, as well as issues with moisture penetration leading to defects.
Innovation Solution
A transparent display apparatus with a simplified cathode contact structure, incorporating trench lines and auxiliary power contact parts to enhance light transmittance and prevent moisture ingress, allowing for manufacturing in various sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transparent display apparatuses are manufactured in multiple varieties (different sizes), then adaptability is improved, but manufacturing cost increases and energy consumption increases
Solution Approach 1:
The patent implements a universal substrate design that can be manufactured in a standard size and then divided into multiple smaller display apparatuses of different sizes. The substrate includes standardized power lines, signal lines, and electrode structures that can serve multiple functions across different final product sizes, allowing one manufacturing process to produce universally applicable base structures for various applications.
Solution Approach 2:
The patent divides the substrate into multiple regions that can be separated into different display apparatuses. The substrate is designed with divisible structures where power lines, signal lines, and electrode patterns are arranged to allow clean segmentation into multiple smaller units, each functioning as an independent transparent display apparatus of potentially different sizes.
2Adaptability or versatility
If transparent display apparatuses are manufactured in multiple varieties (different sizes), then adaptability is improved, but energy consumption increases
Solution Approach 1:
The substrate is designed as a universal platform that can be manufactured once in a standard size and then divided to serve multiple different applications and sizes, eliminating the need for separate manufacturing processes for each variety. This universal approach reduces the total energy consumption associated with repeated manufacturing operations.
Solution Approach 2:
By segmenting the universally manufactured substrate into multiple smaller display apparatuses, the patent avoids the energy-intensive process of manufacturing each display separately. The segmentation occurs after a single efficient manufacturing run, reducing overall energy consumption while enabling multiple product varieties.
3Reliability
If a conventional cathode contact structure is used, then electrical connectivity is ensured, but light transmittance is reduced
Solution Approach 1:
The patent moves the cathode contact structure from the front surface to the rear surface of the substrate, utilizing the z-dimension (depth) to resolve the conflict between electrical connectivity and light transmittance. The cathode contact part is positioned on the rear surface and extends upward to contact the cathode, allowing light to pass through the front surface without obstruction while maintaining reliable electrical connection through the three-dimensional structure.
Solution Approach 2:
The patent introduces an auxiliary power contact part as an intermediary structure that bridges the power line and the cathode contact part. This intermediary component allows electrical connectivity to be achieved through a distributed network of contact points rather than a single large contact area, reducing the impact on light transmittance while ensuring reliable electrical connection.
4Ease of manufacture
If conventional manufacturing processes are used, then production is simplified, but moisture penetration occurs causing defects
Solution Approach 1:
The patent employs the substrate itself as a protective shell structure that integrates moisture barrier functionality. The substrate is designed with sealed structures and protective layers that form a barrier against moisture penetration, while the flexible circuit board provides additional protection and sealing at the edges, creating a moisture-resistant enclosure without requiring complex separate sealing processes.
Solution Approach 2:
The patent implements a nested structure where the cathode contact part is positioned within the substrate structure, and the auxiliary power contact part is integrated within the sealing structure. This nested arrangement allows multiple protective functions to be combined within the same manufacturing process, providing moisture protection while maintaining process simplicity.
Data Source
AI summary
Disclosed is a transparent display apparatus that may include a substrate, a transmissive area, a non-transmissive area having a light-emitting area where a light-emitting element is disposed, at least one power line disposed in the non-transmissive area on the substrate and extending in a first direction, at least one trench line disposed in the transmissive area on the substrate and extending in the first direction, and an auxiliary power contact part disposed in the transmissive area on the substrate, electrically connected to an auxiliary power line extending from the at least one power line in a second direction intersecting the first direction, and overlapping at least a portion of the at least one trench line.