Segmented Polarizer Plate for Display Device Bezel Reduction
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Solution Overview
Problem
Current display devices have a significant non-display region, known as the bezel, which affects their external appearance and efficiency, as polarizer plates are typically arranged on both sides of the display panel, leading to increased thickness and visibility of the non-display areas.
Innovation Solution
A polarizer plate design featuring a base film with an adhesive layer, a polarizer protection film, and a polarizer, where a cutting line divides the polarizer protection film and polarizer into separate regions, and projection regions on the base film extend beyond the polarizer to cover side portions, minimizing the non-display area and enhancing the external appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polarizer plates are arranged on both sides of the display panel, then the polarizer provides complete coverage and protection, but the non-display region (bezel) increases in size and thickness
Solution Approach 1:
The polarizer plate is segmented into a polarizer region and a base film region. The base film extends beyond the polarizer to the edge of the display panel, creating projection regions that provide structural support and adhesion without requiring the polarizer to cover the entire area. This segmentation allows the polarizer to be limited to the display region while maintaining overall plate integrity.
Solution Approach 2:
The base film extends in the lateral dimension beyond the polarizer region, creating projection regions that wrap around the edges. This dimensional extension allows the base film to provide coverage and protection at the edges without requiring the polarizer to extend into the non-display region, thus reducing the bezel area.
2Reliability
If the polarizer extends to the edge of the display panel, then complete coverage is achieved, but the non-display region becomes more visible and the device appearance deteriorates
Solution Approach 1:
The polarizer plate is divided into a polarizer region (with polarizing function) and a base film region (without polarizer). The base film projection regions extend to the edges and can be positioned within or overlap the non-display region, allowing the polarizer to stop before the edge, thereby improving external appearance while maintaining coverage through the base film's structural role.
3Area of stationary object
If the base film extends beyond the polarizer region, then the non-display region is minimized and attachment to case is improved, but the structure becomes more complex
Solution Approach 1:
The base film serves multiple functions: it provides structural support, enables adhesion to the display panel and case, and extends into projection regions that minimize the non-display area. By making the base film multi-functional, the patent avoids adding separate components for each function, thereby managing complexity while achieving multiple benefits.
Solution Approach 2:
The base film and polarizer are merged into a single integrated polarizer plate structure. The base film extends beyond the polarizer region to form projection regions that provide both structural support and edge coverage, combining multiple functions into one component rather than requiring separate parts.
Data Source
AI summary
A polarizer plate includes a base film, an adhesive layer disposed on one surface of the base film, a polarizer protection film disposed on one surface of the adhesive layer, a polarizer disposed on one surface of the polarizer protection film, and a cutting line formed perpendicular to the surface of the base film and configured to divide the polarizer protection film and the polarizer into separate regions.