Bendable Display Device With Inserted Flexible Film
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Solution Overview
Problem
Conventional display devices face challenges in maintaining structural integrity and durability when bent, particularly due to stress on components like metal wiring layers and potential disconnection of lines during repeated bending operations.
Innovation Solution
A bendable display device design featuring a flexible film with a flat and bent portion, where the bent portion is inserted between base substrates, and a method involving a carrier substrate, shrinkable film, and base substrate layer with openings to facilitate bending with minimal structural deformation and maintain component alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the display device is made rigid to maintain structural integrity, then strength is improved, but flexibility and bendability deteriorate
Solution Approach 1:
The base substrate is divided into two separate substrates (first base substrate and second base substrate) with a gap between them. The flexible film with light emitting elements is placed in this gap, allowing the device to be segmented in a way that enables bending while maintaining structural integrity of individual components.
Solution Approach 2:
A flexible film is used as the substrate for the light emitting elements. This flexible film can bend without breaking, allowing the display device to achieve bendability while the light emitting elements remain intact and functional.
2Adaptability or versatility
If the display device is made flexible to enable bending, then adaptability is improved, but structural integrity and reliability deteriorate
Solution Approach 1:
By separating the base substrate into two parts with the flexible film in between, the device allows bending motion while each component (first base substrate, second base substrate, flexible film) maintains its structural integrity independently.
Solution Approach 2:
The flexible film acts as an intermediary between the two base substrates. It mediates the bending stress, allowing the device to flex while protecting the light emitting elements and maintaining overall structural reliability.
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 design enhances durability and reliability of the display device by reducing stress on components and preventing disconnection of lines during bending, allowing for repeated bending without significant structural damage or loss of functionality.
Implementation Method 1
disposing a shrinkable film on the light emitting element, removing the carrier substrate, disposing a base substrate layer on a second surface of the flexible film, the base substrate layer including an opening, and shrinking the shrinkable film
Data Source
AI summary
A display device includes a base substrate layer including a first base substrate and a second base substrate separated from the first base substrate in a first direction, a flexible film disposed on a first surface of the base substrate layer, and one or more light emitting elements disposed on a first surface of the flexible film. The flexible film includes a flat portion and a bent portion. The bent portion is inserted into a space between the first base substrate and the second base substrate.