Flexible Display Panel Functional Hole Layout
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Solution Overview
Problem
The challenge in flexible display technologies is the increased layout difficulty and structural complexity due to the placement of functional holes in the rollable display region, which leads to poor display performance due to stress concentration and difficulty in aligning optical devices like cameras and sensors.
Innovation Solution
A display panel design with a fixed display region and a rollable display region, where functional holes are strategically placed in the fixed region, allowing for a camera hole to be formed by overlapping holes in the display and bonding regions, reducing complexity and stress concentration, and ensuring proper alignment and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If functional holes are placed in the rollable display region, then the display can be made flexible and rollable, but the layout difficulty and structural complexity increase
Solution Approach 1:
The display panel is divided into a fixed display region and a bonding region. The fixed display region contains the functional holes and maintains a rigid structure, while the bonding region can be rolled separately. This segmentation allows the display to be flexible overall while keeping the functional holes in a stable, non-rollable area, thus reducing layout difficulty and structural complexity.
2Adaptability or versatility
If functional holes are placed in the rollable display region, then the display can accommodate cameras and sensors, but stress concentration occurs leading to poor display performance
Solution Approach 1:
The functional holes are extracted from the rollable display region and placed in the fixed display region. This extraction removes the source of stress concentration from the display area, ensuring that the display performance is not compromised by rolling stresses, while still allowing cameras and sensors to be accommodated through the functional holes in the fixed region.
3Adaptability or versatility
If functional holes are placed in the rollable display region, then cameras and sensors can be integrated, but alignment difficulty increases
Solution Approach 1:
The functional holes are preliminarily positioned in the fixed display region during the manufacturing process, before the bonding region is rolled. This preliminary positioning ensures precise alignment of cameras and sensors with the functional holes, as the fixed region provides a stable reference frame that does not move or deform during rolling, thereby improving manufacturing precision and alignment accuracy.
Data Source
AI summary
The present disclosure provides a display panel and a manufacturing method therefor, and the display device. The display panel comprises a display area and a binding area, the binding area comprises a bending area and a composite circuit area which are sequentially arranged in a direction away from the display area, and the bending area is configured to turn the composite circuit area to the back of the display area by bending; a first functional hole is formed in the display area, a second functional hole is formed in the binding area, and the orthographic projection of the first functional hole on the plane of the display area at least partially overlaps the orthographic projection of the second functional hole on the plane of the display area.