Notched OLED Encapsulation Layout to Prevent Panel Surface Defects
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices, particularly OLED devices, face issues with defects such as marks and scratches, especially those caused by deposition masks, which affect aesthetic appeal and reliability, and are not adequately addressed in current technologies.
Innovation Solution
The display device incorporates a display panel with a notch portion and a non-display region, featuring a printed circuit film, panel inorganic layers, a light-emitting unit, and an encapsulation unit that extends to the edge of the non-display region, along with a touch unit and microlenses on sub-pixels, enhancing protection against defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the encapsulation unit is extended to the end of the non-display region, then the reliability and aesthetic appeal are improved by preventing defects, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The encapsulation unit is designed to extend in advance to the end of the non-display region before any potential defects can occur. This preliminary extension prevents defects such as marks and scratches from affecting the display region by creating a protective barrier that reaches beyond the traditional boundaries, thereby improving reliability without requiring complex additional structures.
Solution Approach 2:
The encapsulation unit is implemented as a thin film structure that can extend seamlessly to the end of the non-display region. This thin film approach provides effective protection against defects while maintaining a simple structure that does not significantly increase device complexity or manufacturing difficulty.
Data Source
AI summary
A display device can include a display panel having a notch portion and a display region and a non-display region around the display region, and a printed circuit film attached to the display panel. The display panel can include a substrate, at least one panel inorganic layer disposed on the substrate, a light emitting unit disposed on the at least one panel inorganic layer, and an encapsulation unit disposed on the light emitting unit. Further, the non-display region can include a notch non-display region disposed around the notch portion, and the encapsulation unit can be disposed up to an end portion of the notch non-display region.