Display Panel Blocking Member Concealing Alignment Mark
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Solution Overview
Problem
Display panels with marks used for alignment during manufacturing can still be visible to users after fabrication due to inadequate light shielding, affecting user experience, especially in narrow-border designs where the light shielding portion is insufficient.
Innovation Solution
Incorporating a blocking member on the light shielding portion corresponding to the mark on the second substrate to enhance shielding, ensuring the mark is not observable by users, which can be formed in the same process as the color filter layer to maintain manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only a light shielding portion is used to block the mark, then the structure is simple, but the mark remains visible affecting user experience
Solution Approach 1:
The light shielding portion is divided into two functional segments: a first light shielding layer and a second light shielding layer positioned at different locations. This segmentation allows each layer to contribute to mark blocking independently, achieving better shielding效果 while maintaining reasonable structural complexity
Solution Approach 2:
The solution transitions from a single-plane light shielding approach to a multi-dimensional shielding strategy by positioning light shielding layers at different locations (different dimensions/spaces). The first light shielding layer is positioned at a first location and the second light shielding layer is positioned at a second location, creating spatial redundancy in mark blocking
2Object-affected harmful factors
If the light shielding portion is enlarged to improve mark blocking, then mark visibility is reduced, but the display area is reduced
Solution Approach 1:
The light shielding portions are selectively positioned only where needed to block the mark, rather than creating a uniform large-area light shielding region. The first light shielding layer is positioned at a first location and the second light shielding layer is positioned at a second location, providing localized shielding that preserves maximum display area while effectively blocking the mark
3Object-affected harmful factors
If additional shielding structures are added to block the mark, then mark visibility is prevented, but manufacturing complexity increases
Solution Approach 1:
The first light shielding layer and second light shielding layer are integrated into a unified light shielding structure that works together to block the mark. This merging approach achieves enhanced mark blocking through coordinated action of multiple layers while avoiding the complexity of completely separate shielding systems
Data Source
AI summary
The application discloses a display panel, a manufacturing method of the display panel, and a display device. The display panel includes a display area and a non-display area, and includes a first substrate and a second substrate that is aligned and bonded with the first substrate. The first substrate includes a mark corresponding to the non-display area. The second substrate includes a light shielding portion corresponding to the mark, and the light shielding portion includes a blocking member corresponding to the mark.