Curved Display Module OCA Layer Impact Absorption
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Solution Overview
Problem
Traditional flat display devices are heavy, fragile, and lack impact resistance, while flexible display panels without hard glass protection are susceptible to damage from external forces, compromising their functionality and durability.
Innovation Solution
A curved display module is designed with an optical clear adhesive (OCA) layer between the flexible display panel and the enclosure, which acts as a buffer to absorb external impacts and protect the panel, using materials like silicone, acrylic plastic, or epoxy resin, and can be applied through injection or as a film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a hard flat glass plate is used for supporting the display panel, then the display device achieves good impact resistance and surface hardness, but the device becomes heavy and fragile
Solution Approach 1:
The patent replaces the traditional hard flat glass plate with a flexible display panel that can be bent to a certain degree. The flexible panel is disposed on flexible substrates, eliminating the need for heavy glass support while maintaining structural integrity. This principle directly addresses the contradiction by using flexible materials instead of rigid glass, reducing weight while preserving protective functions.
Solution Approach 2:
The patent employs a curved display design where the flexible display panel is bent into an arc shape and fixed between a first curved surface and a second curved surface. This curvature provides natural structural strength and impact resistance without requiring heavy glass plates, solving the contradiction between weight reduction and impact resistance through geometric design.
2Use of energy by moving object
If a flexible display panel is used to replace traditional panels, then the display device achieves slim shape and low power consumption, but the panel becomes susceptible to damage from external forces
Solution Approach 1:
The patent applies adhesive layers between the flexible display panel and the curved surfaces of the enclosure before external forces are applied. These adhesive layers serve as cushioning elements that absorb and distribute impact forces, protecting the flexible panel from damage. This beforehand cushioning resolves the contradiction by providing protective functionality to the otherwise vulnerable flexible panel.
Solution Approach 2:
The patent creates a composite structure consisting of the flexible display panel combined with adhesive layers and the enclosure housing. This composite construction integrates the flexibility and low power consumption of the flexible panel with the protective qualities of the adhesive and housing materials, achieving both energy efficiency and durability.
3Ease of operation
If the flexible display panel is exposed without hard glass protection, then the device achieves flexibility and portability, but the panel lacks sufficient strength to resist outer impact
Solution Approach 1:
The patent uses flexible substrates to support the display panel, enabling the device to be bent and folded for portable applications. This replaces traditional rigid glass with flexible materials that maintain portability while providing the necessary structural support without requiring hard glass protection.
Solution Approach 2:
The patent applies adhesive layers between the flexible display panel and the enclosure surfaces to provide impact protection. This beforehand cushioning allows the panel to remain exposed and flexible for portability while the adhesive layers provide the necessary strength and hardness protection when external forces are applied.
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
The OCA layer effectively absorbs impact forces, enhancing the durability and stability of flexible display panels, preventing temporary or permanent damage and ensuring the display remains functional under external pressure.
Implementation Method 1
The OCA layer covering on the flexible display panel can be used for holding the flexible display panel. In the mean time, the OCA layer can be used to buffer an outer force (e.g. impact force) and protect the flexible display panel.
Data Source
AI summary
The invention discloses a curved display module and a display device. The curved display module includes an enclosure, at least one opening, a flexible display panel and an Optical Clear Adhesive (OCA) layer. There is a first curved surface inside the enclosure. A cavity is formed within the enclosure. The at least one opening are disposed on at least one edge of the enclosure and connected to the cavity. The flexible display panel is disposed on the first curved surface in the cavity. The OCA layer is disposed within the cavity. The OCA layer directly covers the flexible display panel.