Flexible Display Panel Non-Display Region Folding Design
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Solution Overview
Problem
The increasing demand for high image quality and various applications in display apparatuses leads to an expansion of non-display regions, reducing the percentage of the display region visible to the user, necessitating an improvement in design to minimize the size ratio of non-display to display regions.
Innovation Solution
A flexible display panel with a curved surface design, where non-display regions are folded in a direction opposite to the display direction, reducing the visible area ratio of non-display to display regions, and incorporating a flexible substrate, encapsulation member, and touch panel to maintain shape and enhance user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of circuits and wirings in the non-display region is increased to meet high image quality and various applications, then the functionality and image quality are improved, but the area of the non-display region increases, reducing the percentage of the display region
Solution Approach 1:
The non-display region is folded along a folding line to extend in a direction different from the display direction, transitioning from a two-dimensional plane to a three-dimensional structure. This dimensional change allows circuits and wirings to be arranged in the folded non-display region without increasing the visible area ratio, thereby maintaining high display region percentage while supporting increased functionality
Solution Approach 2:
The display panel uses a flexible substrate that enables the non-display region to be folded without damaging the display region or the circuits. The flexibility allows the non-display region to be configured in a folded state, separating it from the display region's plane and reducing its visible area ratio while maintaining all necessary circuit functions
2Area of stationary object
If the non-display region is folded in a direction different from the display direction, then the visible area ratio of non-display region is reduced, but the structural complexity and manufacturing difficulty increase
Solution Approach 1:
The display panel is divided into distinct regions: a display region and a non-display region separated by a folding line. This segmentation allows independent configuration of each region, enabling the non-display region to be folded without affecting the display region's integrity or function, thereby simplifying the manufacturing process compared to attempting to fold the entire panel
3Adaptability or versatility
If the flexible substrate is made highly flexible to enable folding, then the ease of configuration is improved, but the reliability and durability may be compromised
Solution Approach 1:
Different regions of the display panel have different mechanical properties: the display region maintains high rigidity to ensure display quality and protect the light-emitting elements, while the non-display region is designed with flexibility to enable folding. This local differentiation of mechanical properties allows the panel to achieve both folding capability and structural integrity
Data Source
AI summary
A flexible display panel includes a flexible substrate including a first region including a display region and having a curved display surface, and a plurality of non-display regions that is located outside the display region and including a second region located outside the first region and folded in a direction different from a display direction of the first region, and an encapsulation member for encapsulating the display region along the curved display surface.