Flexible Display Manufacturing with Segmented Raw Material Sheet
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flexible displays in portable information devices face deformation issues due to insufficient strength and pressure application methods, which can cause swelling or shrinkage, affecting the display's appearance and functionality.
Innovation Solution
A method for manufacturing a display device with a bendable display body and a sheet member, where a raw material sheet with wider dimensions than the display body has hole portions along the bent section, allowing for precise alignment and pressure application to prevent deformation, and optionally using a reinforcing sheet for added rigidity, ensuring the display body remains stable during bending and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If pressure is applied to stick the sheet member and flexible display together, then adhesion is improved, but the flexible display deforms and swells
Solution Approach 1:
The sheet member is segmented with multiple hole portions along the bent section, dividing the continuous material into sections that can independently deform and recover, preventing cumulative deformation effects that would cause swelling
Solution Approach 2:
The sheet member has different structural properties in different regions: the bent section has hole portions for flexibility and deformation absorption, while other areas maintain continuous structure for strength, creating localized quality variations that address different functional requirements
2Quantity of substance
If the sheet member is made narrower to match the display body width, then material usage is optimized, but the end portions cannot absorb deformation
Solution Approach 1:
The sheet member is preliminarily designed with a width greater than the display body and with hole portions positioned in advance along the bent section, so that when pressure is applied, the end portions are already prepared to absorb deformation through extension and recovery, preventing display swelling
Data Source
AI summary
A method for manufacturing a display device that can prevent deformation of a flexible display is provided. A raw material sheet that serves as a metal sheet of the flexible display has a width that is greater than a width of the display body in Y direction and a plurality of holes are provided in a bent area of the raw material sheet over an entire width along a bent section of the display body. The method includes: mounting the display body on the raw material sheet such that the bent section and the bent area are aligned and that the display body avoids the end portions in the Y direction; applying pressure to the display body from a central part of the display body toward a periphery of the display body; and cutting the raw material sheet into a predetermined size.