Light-Emitting Device Drop Protection via Segmented Supports
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Solution Overview
Problem
Portable data-processing devices, especially those with large screens, are prone to damage from accidental drops due to external forces, and existing display devices with high adhesiveness between layers do not adequately address the issue of reliability and convenience.
Innovation Solution
A light-emitting device structure comprising a first support, a first layer with an insulating film and a light-emitting element, a bonding layer, and a second support with isotropic properties, where the insulating film and light-emitting element are protected by the supports, and a method for manufacturing this device using a process involving separation triggers and materials with fluidity to reduce pressure and enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high adhesiveness between layers is used to prevent breakage, then reliability is improved, but device complexity increases
Solution Approach 1:
The device is divided into separate layers (first support, first layer to be separated, bonding layer, second support) that can be independently manufactured and then assembled. This segmentation allows each layer to be optimized for its specific function while reducing the complexity of achieving high adhesiveness across the entire structure.
Solution Approach 2:
A bonding layer is introduced as an intermediary between the first layer to be separated and the second support. This bonding layer specifically addresses the adhesion requirement at the critical interface, simplifying the overall structure by concentrating the adhesiveness function in a dedicated layer rather than requiring high adhesiveness throughout the entire device.
2Reliability
If protective supports are added around light-emitting elements, then reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The first support and second support are prepared in advance as protective structures before the light-emitting elements are assembled between them. This preliminary preparation of protective supports simplifies the final assembly process and ensures protection is already in place, reducing manufacturing complexity.
Solution Approach 2:
The first support and second support serve multiple functions: they provide mechanical protection to the light-emitting elements, serve as structural frameworks for the device, and can be designed to transmit or block light as needed. This multi-functionality reduces the need for additional separate protective components.
3Manufacturing precision
If pressure is applied during manufacturing to ensure bonding, then manufacturing precision is improved, but reliability worsens due to damage to sensitive components
Solution Approach 1:
The bonding layer acts as a mediator that distributes and reduces the pressure applied during manufacturing. By placing the bonding layer between the supports and the light-emitting elements, the pressure required for bonding is absorbed and distributed by the bonding layer, preventing direct transmission of high pressure to the sensitive light-emitting elements.
Solution Approach 2:
The bonding layer is designed with specific material properties (such as viscosity, compressibility, or thermal conductivity) that allow it to facilitate bonding at lower pressure levels. By changing the parameters of the bonding interface through material selection, the need for high-pressure bonding is eliminated, protecting the light-emitting elements from damage.
Data Source
AI summary
A novel light-emitting device that is highly convenient or reliable is provided. A method for manufacturing a novel light-emitting device that is highly convenient or reliable is also provided. Further, a novel light-emitting device, a method for manufacturing a novel light-emitting device, or a novel device is provided. The present inventor has conceived the structure in which a first insulating film and a light-emitting element are provided between a first support having certain isotropy and a second support.