Polarizer Hollow Portion Camera Integration
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Solution Overview
Problem
Existing display device technologies face challenges in maximizing screen utilization and protecting polarizers, especially in 'fringe-type' designs where the polarizer's full surface coverage is not conducive to thinner, lighter, and larger display areas, and the excavation process leads to damage from sharp corners and protrusions.
Innovation Solution
A polarizer design featuring a first hollow portion and a surrounding polarizing portion, covered by a protective film and pressure-sensitive adhesive layer, which allows for non-polarizing regions to accommodate image collecting devices like cameras, and includes a quarter-wave plate with overlapping hollow portions to prevent light polarization and protect the polarizing layer from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the polarizer is disposed in the entire surface, then the polarizer can provide complete light polarization coverage, but it increases the area occupation and is not conducive to achieving larger display area ratio and thinner design
Solution Approach 1:
The polarizer is divided into a polarizing region and a non-polarizing region, allowing different areas to serve different functions. The polarizing region provides light polarization for display, while the non-polarizing region accommodates components like cameras, thereby increasing the display area ratio without compromising polarization coverage where needed.
Solution Approach 2:
Different regions of the polarizer are designed with different optical properties. The polarizing region maintains full polarization capability, while the non-polarizing region is specifically designed to allow light transmission for camera placement, optimizing both display performance and component integration.
2Adaptability or versatility
If the polarizer is excavated to create profiled design for camera placement, then camera placement is enabled, but it increases technology processes and is not conducive to protecting the polarizer
Solution Approach 1:
The polarizer is segmented into polarizing and non-polarizing regions during the manufacturing process, allowing camera placement without requiring post-manufacturing excavation. This segmentation is integrated into the manufacturing flow, reducing additional processing steps and protecting the polarizer structure.
Solution Approach 2:
The non-polarizing region is prepared in advance during the polarizer manufacturing process, creating the necessary opening for camera placement before the polarizer is assembled into the display device. This preliminary preparation eliminates the need for subsequent excavation and protects the polarizer from damage.
3Adaptability or versatility
If the polarizer is excavated to create profiled design, then camera placement is enabled, but it creates sharp corners and protrusions that can damage the polarizer
Solution Approach 1:
The polarizer is designed with a non-polarizing region that is integrated smoothly into the overall structure, avoiding sharp corners and protrusions that could cause damage. The segmentation is performed in a way that maintains structural integrity and protects the polarizer from mechanical damage.
Solution Approach 2:
The manufacturing process incorporates protective measures in advance, such as rounding corners and creating smooth transitions in the non-polarizing region, to prevent damage before the polarizer is assembled and used. This beforehand cushioning ensures the polarizer is protected from mechanical stress and damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances screen-to-body ratio utilization by allowing camera placement in polarizing regions and protects the polarizer from damage, preventing light polarization and ensuring effective light transmission while maintaining the polarizer's functionality.
Implementation Method 1
a first protective film covering the first hollow portion and the first polarizing portion
Implementation Method 2
a first pressure-sensitive adhesive layer located at a side of the first polarizing layer facing away from the first protective film
Implementation Method 3
a first hollow portion and a first polarizing portion surrounding the first hollow portion... The first hollow portion overlaps with the hollow region
Data Source
AI summary
A polarizer, a display panel and a display device including the polarizer are provided. The polarizer includes: a first polarizing layer, a first protective film and a first pressure-sensitive adhesive layer. The first polarizing layer includes a first hollow portion and a first polarizing portion surrounding the first hollow portion. The first protective film covers the first hollow portion and the first polarizing portion. The first pressure-sensitive adhesive layer is located at a side of the first polarizing layer facing away from the first protective film. With the display panel and the display device including the polarizer, since the first hollow portion is disposed in the first polarizing portion, an image collecting device such as a camera can be disposed in the polarizing region, thereby improving utilization of the surface area of the polarizer provided by the embodiments of the disclosure, and increasing the screen-to-body ratio.