UV-Blocking Member Integration in Bendable Display Devices
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Solution Overview
Problem
Current display devices with bending portions face challenges in effectively forming and maintaining a UV-blocking structure, which can lead to deterioration of driving elements due to UV exposure.
Innovation Solution
Incorporating a UV-blocking member, such as metal oxides, dyes, pigments, or carbon-based light-blocking materials, into the display device's structure, including UV-blocking layers or particles in the supporting film, base substrate, or buffer layers, to prevent UV damage, combined with a method for manufacturing that involves forming a bending portion using a guide film and adhesive members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UV-blocking member is added to protect driving elements from UV damage, then the reliability of the display device is improved, but the device complexity increases
Solution Approach 1:
The UV-blocking member is merged with existing structural components of the display device, specifically combining it with the supporting film, base substrate, or buffer layers. This integration approach allows the UV-blocking function to be achieved without adding separate independent components, thereby improving reliability while minimizing increases in device complexity.
Solution Approach 2:
The UV-blocking member is designed to serve multiple functions within the display device structure. By incorporating UV-blocking materials into components that already provide structural support or protective functions, the same component performs both its original function and UV protection, reducing the need for additional dedicated UV-blocking components.
2Duration of action of stationary object
If UV-blocking materials are incorporated into the display device structure, then the durability of driving elements is improved, but the manufacturing process complexity increases
Solution Approach 1:
The UV-blocking member is incorporated into the display device structure during the manufacturing process at an early stage, before the driving elements are fully assembled and sealed. By performing the UV-blocking integration preliminarily during manufacturing rather than as a post-assembly modification, the overall manufacturing complexity is minimized while still achieving the durability improvement.
3Object-affected harmful factors
If a UV-blocking layer is disposed between the buffer layer and base substrate, then the protection effectiveness against UV rays is improved, but the device complexity increases
Solution Approach 1:
The UV-blocking member is selectively positioned at the specific location between the buffer layer and base substrate where UV protection is most critical for protecting the driving elements. This localized placement approach ensures maximum protection effectiveness at the most vulnerable area without requiring UV-blocking materials to be distributed throughout the entire device structure, thereby minimizing complexity increases.
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 solution effectively prevents deterioration of driving elements by blocking UV rays, ensuring the longevity and performance of display devices with curved or bent designs.
Implementation Method 1
a UV-blocking member disposed below the driving element... a UV-blocking layer combined with at least one surface of the supporting film... UV-blocking particles dispersed in the supporting film
Implementation Method 2
combining the panel part with a guide film by a guide adhesive member
Implementation Method 3
irradiating a UV ray onto the guide adhesive member through the lower surface of the guide film
Data Source
AI summary
A display device includes a panel part and a protective window on the panel part. The panel part includes a base substrate, a supporting film disposed below the base substrate, a driving element disposed on the base substrate, the driving element including an active pattern, and a UV-blocking member disposed below the driving element.