Flexible Display Pixel Islands with Blocking Structure
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Solution Overview
Problem
Existing stretchable flexible display panels are prone to water and oxygen erosion due to hollow areas, which affects their display performance.
Innovation Solution
A flexible display panel design featuring pixel islands with a blocking structure, such as a ring-shaped rib or recess, surrounding the display area to prevent erosion by interrupting the light emitting layer and creating a preset interval, thereby blocking the path for water and oxygen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hollow areas are introduced to enable stretching and deformation of the flexible display panel, then the flexibility and stretchability are improved, but water and oxygen can erode from the hollow area to the display area, affecting display effect and reliability
Solution Approach 1:
The light emitting layer is segmented into multiple independent regions by the blocking structure, creating isolated emission zones that prevent continuous pathways for water and oxygen erosion while maintaining display functionality in each segment
Solution Approach 2:
The blocking structure serves as an intermediary element between the hollow area and the display area, physically interrupting the path for water and oxygen erosion while allowing the flexible substrate to maintain its stretching capability
2Reliability
If a blocking structure is introduced to prevent water and oxygen erosion by interrupting the light emitting layer, then the reliability and display effect are improved, but the structural complexity and manufacturing complexity increase
Solution Approach 1:
The blocking structure performs multiple functions simultaneously: it acts as a physical barrier against water and oxygen erosion, defines the boundaries of light emitting regions, and maintains the structural integrity of the flexible display panel during stretching, thereby reducing the need for additional separate protective components
3Reliability
If the light emitting layer is interruptedly arranged to create blocking effect, then the protection against water and oxygen erosion is improved, but the manufacturing precision requirements increase due to the need for precise positioning of the blocking structure and light emitting layer
Solution Approach 1:
The blocking structure is formed in advance during the manufacturing process, establishing predetermined positions and boundaries before the light emitting layer is deposited, which guides the subsequent formation of interrupted light emitting regions and reduces the need for high-precision alignment during later manufacturing steps
Data Source
AI summary
The present disclosure relates to the technical field of display, and provided thereby are a display device, a flexible display panel and a manufacturing method therefor. The flexible display panel comprises a flexible substrate and a plurality of pixel islands arranged in an array on the flexible substrate; the pixel islands have a display region and a peripheral region surrounding the display region, and each pixel island comprises a driving layer, a first electrode layer, a light emitting layer and a second electrode layer that are sequentially stacked on the flexible substrate; the first electrode layer comprises a first electrode located in the display region and a peripheral electrode located in the peripheral region; the peripheral electrode surrounds the display region, and a surface of the peripheral electrode away from the flexible substrate is provided with a barrier structure surrounding the display region, a preset spacing being present between the barrier structure and the display region; and the light emitting layer is intermittently provided in a region directly opposite to the barrier structure and a region located within a range of the preset spacing.