Coated Polarization Layer for Thin Flexible Display Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current flexible display panels face challenges in achieving a thin design due to thick film layers, which limits their bending flexibility and increases production costs, and are prone to light leakage when bent.
Innovation Solution
A display panel design that includes a base substrate, a drive unit, a light-emitting functional layer, a sealing film layer, and a coated polarization layer on the output side, reducing the number of film layers and thickness, thereby enhancing bending properties and preventing light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional multiple film layers are used in flexible display panels, then the structural integrity and sealing performance are improved, but the panel thickness increases and bending flexibility deteriorates
Solution Approach 1:
The patent combines multiple functional layers into an integrated thin-film structure. Specifically, the sealing film layer integrates both sealing function and structural support, while the polarization functional layer is directly formed on the light-emitting functional layer without additional support substrates. This merging of functions reduces the total number of discrete layers while maintaining structural integrity through careful material selection and layer design.
Solution Approach 2:
The patent employs thin-film technology throughout the display panel structure. The sealing film layer, polarization functional layer, and other components are all implemented as thin films rather than thick rigid layers. This approach maintains the necessary structural integrity for sealing and support while keeping each layer thin enough to allow overall panel flexibility and bendability.
2Illumination intensity
If traditional polarization layers with support substrates are used, then the polarization function is achieved, but the panel thickness increases and production cost increases
Solution Approach 1:
The patent extracts and removes the thick support substrates traditionally used with polarization layers. By eliminating these bulky support structures and implementing the polarization function directly through thin-film coatings on the light-emitting functional layer, the patent achieves the necessary polarization effect while dramatically reducing panel thickness and associated production costs.
Solution Approach 2:
The patent changes the physical parameters of the polarization layer implementation. Instead of using thick support substrates with standard polarization films, the invention transitions to ultra-thin film formulations and coating techniques that achieve equivalent or superior polarization performance at much reduced thickness, enabling flexible display applications.
3Adaptability or versatility
If flexible bending is implemented, then portability and application versatility are improved, but light leakage occurs and production complexity increases
Solution Approach 1:
The patent implements the sealing film layer and integrated thin-film structure beforehand to prevent light leakage before it can occur during bending. The sealing film layer is designed to maintain its sealing function even when the panel is bent, and the integrated thin-film structure eliminates gaps or interfaces where light leakage could occur, providing proactive protection against this harmful effect.
4Reliability
If multiple discrete layers are used, then functional performance is achieved, but manufacturing complexity and production cost increase
Solution Approach 1:
The patent merges multiple discrete layers into an integrated thin-film structure where the sealing film layer and polarization functional layer are directly formed on the light-emitting functional layer without additional support substrates. This integration reduces the total number of discrete components while maintaining all necessary functions through careful material selection and layer design, thereby simplifying manufacturing processes and reducing production costs.
Data Source
AI summary
A display panel includes an array substrate including a base substrate and a drive unit; a light-emitting functional layer placed on one side of the drive unit and electrically connected with the drive unit; a sealing film layer placed on one side of the light-emitting functional layer; and a polarization functional layer placed on a light output side of the display panel. The polarization functional layer includes a coated polarization layer. Compared with the prior art, the display panel includes less film layers, and layers of the display panel are thinner, which facilitates the thin-type design. In addition, the method for making a display panel is simple, a production cost is low, and a production efficiency is high, which is good for a large-scale production application.