Display Polarizer Non-Flush Edge Design for Narrow Border
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Solution Overview
Problem
Modern display devices with narrow borders suffer from visible polarizer edges, which can make the display area appear narrower, necessitating a design that minimizes the visibility of the polarizer's edge.
Innovation Solution
A display device with a polarizer featuring a non-flush edge design, achieved through a laminated structure of multiple films with varying edge distances and a colloid between the polarizer and frame to enhance contact and prevent light leakage, allowing the polarizer's edge to be visually blurred and compatible with the display's brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the border is narrowed to achieve compactness and modern design, then the display device becomes more compact and modern, but the polarizer's edge becomes extra visible making the display area look narrower
Solution Approach 1:
The patent applies dimensionality change by creating a stepped structure where the polarizer has different width projections at different heights. The first, second, and third films have progressively smaller widths, forming a multi-level stepped configuration that obscures the polarizer edge from the viewer's perspective while maintaining a narrow border design.
Solution Approach 2:
The patent segments the polarizer into multiple distinct film layers (first film, second film, third film) with different widths and positions. Each film is separated and positioned at different distances from the display medium layer, creating a segmented structure that reduces edge visibility through the stepped configuration.
2Object-generated harmful factors
If a laminated structure with varying edge distances is used to reduce polarizer edge visibility, then the polarizer edge becomes less visible, but the structural complexity of the polarizer increases
Solution Approach 1:
The polarizer is divided into three separate film layers (first film, second film, third film) that can be independently positioned and laminated. This segmentation allows for the stepped configuration while maintaining modular construction, where each film can be separately manufactured and then assembled in the specified sequence with specific spacing relationships.
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
The non-flush edge design effectively reduces the visibility of the polarizer's edge, enhancing the apparent display area and preventing light leakage by scattering light and maintaining consistent brightness with the border region.
Implementation Method 1
preventing light leakage by scattering light
Data Source
AI summary
A display device includes: a substrate; a display medium layer disposed on the substrate; and a polarizer having a first film, a second film and a third film sequentially laminated on the display medium layer. The second film connects to the first film. The third film connects to the second film. A first bottom surface of the first film has a first edge. A second bottom surface of the second film has a second edge. A third bottom surface of the third film has a third edge. A first minimum distance exists between projections of the first edge and the second edge on the substrate in a first direction perpendicular to a normal direction of the substrate, and a second minimum distance exists between the second edge and the third edge on the substrate in the first direction. The first minimum distance is different from the second minimum distance.