Display Panel Sub-Pixel Repair Using Segmented Adherent Materials
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Solution Overview
Problem
The challenge in the display panel industry is to quickly and efficiently repair defective pixels, which has not been effectively addressed by existing technologies.
Innovation Solution
A display panel design that includes first and second sub-pixels with different orienting characteristics and adherent materials, allowing for the use of a single transposed element head to replace defective pixels using a second adherent material, simplifying the hardware and operation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single transposed element head is used to replace defective pixels, then hardware complexity is reduced, but the ability to handle different pixel orientations is worsened
Solution Approach 1:
The pixel array is divided into two distinct types: first pixels with a first orienting characteristic and second pixels with a second orienting characteristic. This segmentation allows each pixel type to be handled by specific adherent materials and placement processes, enabling a single transposed element head to efficiently replace defective pixels without requiring complex reconfiguration for different orientations.
Solution Approach 2:
Different adherent materials are used for different pixel types on the substrate. First pixels use a first adherent material while second pixels use a second adherent material. This local differentiation enables the single transposed element head to accommodate various pixel orientations by matching the appropriate adherent material to each pixel type, thus resolving the contradiction between hardware simplicity and orientation adaptability.
2Manufacturing precision
If different adherent materials are used for different pixel types, then pixel replacement precision is improved, but manufacturing complexity increases
Solution Approach 1:
The first and second adherent materials are disposed on the substrate in advance during the manufacturing process, before pixel placement. This preliminary action ensures that when pixels are replaced, the appropriate adherent material is already in position, improving pixel replacement precision while avoiding the need for complex real-time material selection or application during the replacement process.
Solution Approach 2:
The invention changes the material parameter of the adherent layer by using different adherent materials for different pixel types. This parameter differentiation enables precise matching between pixels and their corresponding adherent materials, improving replacement precision. The manufacturing complexity is managed by establishing this material differentiation during the standard manufacturing process rather than during repair operations.
Data Source
AI summary
A display panel and a manufacturing method thereof are provided. The display panel includes a substrate, first sub-pixels and second sub-pixels. The first sub-pixels are disposed on the substrate. The first sub-pixels have a first orienting characteristic. A first adherent material is disposed between the first sub-pixels and the substrate. The second sub-pixels are disposed on the substrate. The second sub-pixels have a second orienting characteristic. A second adherent material is disposed between the second sub-pixels and the substrate. The first orienting characteristic and the second orienting characteristic are different. The first adherent material and the second adherent material are different.