Flexible OLED Display Panel Installation Holes and Encapsulation
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Solution Overview
Problem
Existing flexible OLED display panels face limitations in all-screen product design due to installation holes being arranged outside valid display areas, which restricts the size of the display area and hinders the fabrication of bezel-free products.
Innovation Solution
A display panel design that includes installation holes within the display area, with an encapsulation layer covering the light-emitting and cathode layers adjacent to the holes, and post spacers to protect these layers, allowing for the integration of hardware structures like cameras and buttons while maintaining display integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If installation holes are arranged outside the valid display area, then the hardware structures can be installed, but the valid display area size is limited
Solution Approach 1:
The patent moves installation holes from the traditional bezel area (2D plane outside display) into the display area itself, utilizing the display area as a multi-functional space that accommodates both display function and hardware installation, thereby increasing the valid display area while maintaining reliability through proper sealing design
2Area of stationary object
If installation holes are arranged in the display area, then the valid display area is increased, but the light-emitting and cathode layers are exposed to oxidation
Solution Approach 1:
The patent introduces an encapsulation layer as an intermediary substance that fills and seals the installation holes, creating a barrier between the light-emitting and cathode layers and the external environment, thereby preventing oxidation while allowing the holes to remain in the display area for hardware installation
Solution Approach 2:
The encapsulation layer material creates an inert or protective environment within the installation holes, isolating the sensitive light-emitting and cathode layers from oxygen and moisture in the external environment, thus preventing oxidation reactions
Data Source
AI summary
The disclosure relates to a display panel, a method for fabricating the same, and a display device. The display panel includes: a base substrate, and a thin film transistor structure, an anode layer, a light-emitting layer, a cathode layer, and an encapsulation layer, which are arranged successively on the base substrate, wherein at least one installation hole for installing a hardware structure is arranged in a display area of the display panel, and the installation hole runs through the base substrate and the respective layers on the display panel in the direction perpendicular to the base substrate; and the edge of the installation hole is arranged with an encapsulation layer material, and the encapsulation layer material covers at least the light-emitting layer and the cathode layer adjacent to the edge of the installation hole, in the direction parallel to the base substrate.