Viewing Angle Film Segmented Base and Attachment
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Solution Overview
Problem
Conventional viewing angle changing films for electronic display panels face challenges in manufacturing costs and functionality due to the need for a partially thin insertion edge, which can result in inadequate thickness and impaired viewing angle adjustment.
Innovation Solution
A protective film comprising a base film and an attachment film, where the attachment film has thinner protrusions that insert into an air gap between the display panel and bezel, allowing for effective viewing angle adjustment without complicating the base film's formation or processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the protective film is made with a partially thin insertion edge to be inserted into the gap between display panel and bezel, then the film can be installed, but the manufacturing cost increases due to complex forming or processing
Solution Approach 1:
The protective film is divided into two separate components: a base film with uniform thickness that provides the viewing angle changing function, and a separate attachment film with thin protrusions that provides the insertion capability. This segmentation allows each component to be optimized independently, avoiding the need to complexly process the base film.
Solution Approach 2:
The insertion function is extracted from the base film and implemented through a separate attachment film. The attachment film's thin protrusions are specifically designed for insertion into the gap, while the base film maintains its uniform thickness and optical properties without complex forming or processing.
2Length of stationary object
If the overall thickness of the viewing angle changing film is reduced to enable insertion into the gap, then the film can be installed, but the film fails to implement the correct function of changing the viewing angle
Solution Approach 1:
The film system is segmented into a base film that maintains sufficient uniform thickness for viewing angle changing functionality, and a separate attachment film with thin protrusions for insertion. This ensures the base film's thickness is optimized for optical function while the attachment film handles the mechanical insertion requirement.
Solution Approach 2:
The attachment film acts as an intermediary component that bridges the gap between the thick base film (needed for optical function) and the thin profile (needed for insertion). The thin protrusions of the attachment film enable insertion into the limited gap space without compromising the base film's thickness.
3Length of stationary object
If the base film is made thinner to reduce overall film thickness, then insertion becomes possible, but the base film loses its rigidity
Solution Approach 1:
The system separates the structural support function from the insertion function. The base film maintains its uniform thickness and rigidity for structural integrity and optical function, while the separate attachment film provides the thin protrusions needed for insertion, eliminating the need to thin the base film.
Data Source
AI summary
A viewing angle changing film capable of changing the viewing angle of a display panel is provided. The viewing angle changing film includes a base film opposed to a display panel, and an attachment having a thickness smaller than a thickness of the base film. The base film can change the viewing angle of the display panel. The attachment is inserted into air gap defined between the display panel and a bezel. The attachment is a separate member from the base film, and is fixed to the base film.


