Borderless Display Panel Spacer Light-Blocking Design
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Solution Overview
Problem
Conventional borderless display panels require a cover window to minimize the visibility of non-display areas, increasing manufacturing costs and complexity.
Innovation Solution
A borderless display panel design that omits the cover window by using a spacer with a light-blocking layer on the pad area, where the upper polarizing plate extends to cover the spacer, and includes a conductive coating layer to prevent static electricity, reducing manufacturing costs and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a cover window is added to minimize the visibility of non-display areas, then the aesthetic appearance is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The patent merges the light-blocking function into the spacer structure by adding a light-blocking layer to the spacer body. This combines the spacing function and light-blocking function into a single component, eliminating the need for a separate cover window and reducing device complexity while maintaining aesthetic appearance.
Solution Approach 2:
The spacer is designed to perform multiple functions: maintaining cell gap, providing light-blocking capability through the light-blocking layer, and serving as a structural support element. This multi-functionality reduces the total number of components needed in the display panel.
2Shape
If a cover window is added to minimize the visibility of non-display areas, then the aesthetic appearance is improved, but the manufacturing cost increases
Solution Approach 1:
The light-blocking function is merged into the spacer structure through the light-blocking layer, eliminating the need for a separate cover window component. This reduces the number of parts that need to be manufactured, stored, and assembled, thereby reducing manufacturing cost.
Solution Approach 2:
The patent extracts the light-blocking function from the cover window concept and relocates it to the spacer structure. This allows the elimination of the cover window while maintaining the light-blocking effect, simplifying the manufacturing process.
3Object-affected harmful factors
If the upper polarizing plate is extended to cover the spacer, then the light-blocking effect is improved, but the material usage and manufacturing complexity increase
Solution Approach 1:
The patent combines the light-blocking function into the spacer structure through the light-blocking layer, which is integrated with the spacer body. This eliminates the need to extend the upper polarizing plate beyond the substrate edge, reducing material usage and simplifying the lamination process.
4Object-affected harmful factors
If a light-blocking layer is added to the spacer, then the visibility of non-display areas is reduced, but the manufacturing process complexity increases
Solution Approach 1:
The light-blocking layer is integrated into the spacer structure, combining the light-blocking function with the existing spacer component. This approach adds minimal manufacturing complexity compared to introducing entirely new components, as the light-blocking layer can be applied during the spacer manufacturing process.
Data Source
AI summary
A display panel includes a first substrate defining a display area thereof in which an image is displayed and a pad area thereof which is disposed extended from an edge of the display area and in which the image is not displayed; a second substrate disposed overlapping the display area of the first substrate; a spacer disposed on the pad area of the first substrate; and an upper polarizing plate disposed on the second substrate, the upper polarizing plate extended further than the second substrate to be disposed on the spacer on the pad area of the first substrate The spacer includes a body portion and a light-blocking layer which is disposed on a surface of the body portion.