Light-Blocking Supporting Member for OLED Filler Reliability
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Solution Overview
Problem
Current organic light-emitting display devices face limitations in increasing color gamut and reliability of the filling process, particularly due to the thickness of fillers and the complexity of the filling process itself.
Innovation Solution
The implementation of a display device structure that includes a light-blocking/supporting member with a light-blocking portion and supporting portions, which reduces the thickness of the filler and improves the filling process reliability, while also utilizing a thin encapsulation layer and a bank layer to enhance light emission and color conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of the filler is increased to improve the filling process reliability, then the reliability of the filling process is improved, but the color gamut is reduced
Solution Approach 1:
The light-blocking/supporting member is divided into multiple supporting portions (first, second, third supporting portions) that are spatially segmented and positioned at different locations. This segmentation allows each supporting portion to independently support the filler, enabling the use of thinner filler while maintaining overall filling process reliability through distributed support structures.
Solution Approach 2:
The light-blocking/supporting member acts as an intermediary structure between the filler and the substrates. It provides mechanical support to the filler, allowing the filler to be thinner while still maintaining reliability. The supporting portions of the light-blocking/supporting member bridge the gap and distribute the load, enabling thin filler design without compromising filling process reliability.
2Illumination intensity
If the thickness of the filler is reduced to increase the color gamut, then the color gamut is increased, but the reliability of the filling process deteriorates
Solution Approach 1:
The light-blocking/supporting member is divided into multiple supporting portions (first, second, third supporting portions) that are spatially segmented and positioned at different locations. This segmentation allows each supporting portion to independently support the filler, enabling the use of thinner filler while maintaining overall filling process reliability through distributed support structures.
Solution Approach 2:
The light-blocking/supporting member acts as an intermediary structure between the filler and the substrates. It provides mechanical support to the filler, allowing the filler to be thinner while still maintaining reliability. The supporting portions of the light-blocking/supporting member bridge the gap and distribute the load, enabling thin filler design without compromising filling process reliability.
3Reliability
If a thick filler is used to ensure filling process reliability, then the reliability of the filling process is improved, but the light extraction efficiency is reduced
Solution Approach 1:
The light-blocking/supporting member is divided into multiple supporting portions (first, second, third supporting portions) that are spatially segmented and positioned at different locations. This segmentation allows each supporting portion to independently support the filler, enabling the use of thinner filler while maintaining overall filling process reliability through distributed support structures.
Solution Approach 2:
The light-blocking/supporting member acts as an intermediary structure between the filler and the substrates. It provides mechanical support to the filler, allowing the filler to be thinner while still maintaining reliability. The supporting portions of the light-blocking/supporting member bridge the gap and distribute the load, enabling thin filler design without compromising filling process reliability.
4Use of energy by moving object
If a thin encapsulation layer is used to improve light extraction efficiency, then the light extraction efficiency is improved, but the structural strength is reduced
Solution Approach 1:
The light-blocking/supporting member is divided into multiple supporting portions (first, second, third supporting portions) that are spatially segmented and positioned at different locations. This segmentation allows each supporting portion to independently support the filler, enabling the use of thinner filler while maintaining overall filling process reliability through distributed support structures.
Solution Approach 2:
The light-blocking/supporting member acts as an intermediary structure between the filler and the substrates. It provides mechanical support to the filler, allowing the filler to be thinner while still maintaining reliability. The supporting portions of the light-blocking/supporting member bridge the gap and distribute the load, enabling thin filler design without compromising filling process 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
This configuration effectively increases the color gamut and improves the reliability of the filling process, leading to enhanced light extraction efficiency and color purity in organic light-emitting display devices.
Implementation Method 1
a first wavelength conversion pattern in the first light-exiting area and converting a wavelength of light of a first color into a light of a second color
Data Source
AI summary
A display device is provided. The display device includes: a first base; light-emitting elements on the first base and in the pixels, respectively; a second base facing the first base; and a light-blocking/supporting member between the light-emitting elements and the second base and at a boundary of each of the pixels, wherein the light-blocking/supporting member includes a light-blocking portion and a plurality of supporting portions in the light-blocking portion.