Display Deposition Mask With Mesh Fixing for Under-Display Cameras
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Solution Overview
Problem
Existing display technologies face challenges in extending the display area to include camera functionalities without disrupting pixel formation, necessitating the development of a mask that can accommodate a camera in the display area without obstructing pixel arrangement.
Innovation Solution
A mask comprising a mask frame, a first mask with opening parts, a second mask with a mesh shape and mesh parts, and a fixing part with bars and blocking parts to securely attach the mesh mask to the frame, ensuring proper deposition of materials and camera functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera is disposed in the display area, then the display area can be extended to include camera functionality, but pixels cannot be disposed in the area where the camera is disposed
Solution Approach 1:
The mask is divided into multiple sections: a first mask with a first opening part for pixel formation, and a second mask with a second opening part for camera formation. This segmentation allows independent control of pixel and camera areas, enabling camera integration without disrupting pixel arrangement precision.
Solution Approach 2:
Different regions of the mask have different properties: the first mask provides open areas for pixel deposition, while the second mask provides mesh structures with specific opening ratios for camera area control. This local differentiation enables simultaneous achievement of pixel precision and camera integration.
2Manufacturing precision
If a mesh mask is used to control material deposition, then pixel formation can be controlled, but the mesh mask needs to be firmly fixed to the mask frame
Solution Approach 1:
The fixing structure is segmented into fixing parts that are disposed at specific positions on the mask frame, separating the fixation function from the mesh mask structure itself. This allows the mesh mask to maintain its deposition control function while the fixing parts provide stable attachment.
Solution Approach 2:
The fixing parts are nested within the mask frame structure, with the first mask and second mask positioned relative to the mask frame. This nesting arrangement ensures firm fixing while maintaining the functional integrity of the mesh mask for material deposition control.
3Area of stationary object
If the display area is extended to the non-display area, then the overall display area increases, but the camera arrangement area must be excluded from pixel formation
Solution Approach 1:
The mask system is segmented into a first mask for pixel area definition and a second mask for camera area definition. This segmentation enables the extended display area to include both pixel regions and camera regions with distinct functional zones, managing the complexity through structured division.
Solution Approach 2:
The mask frame and associated fixing parts serve multiple functions: they provide structural support, define the extended display area boundaries, and enable both pixel formation and camera integration. This multi-functionality reduces overall device complexity by consolidating multiple roles into a single integrated structure.
Data Source
AI summary
A mask includes a mask frame including a first opening part; a first mask disposed on the mask frame and including a second opening part overlapping the first opening part in a plan view; a second mask including a mesh part having a mesh shape overlapping the second opening part in a plan view and disposed on the first mask; and a fixing part disposed on the second mask and extending along an edge of the second mask to surround the mesh part.