Micro-LED Display Panel Spare Element Replacement
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Solution Overview
Problem
Micro-LED display panels face issues due to LED element damage, which affects display effectiveness and requires complex replacement processes due to the small size and high requirements of the LED elements.
Innovation Solution
Incorporating spare LED element setting regions between sub-pixels, allowing adjacent sub-pixels to share electrode connecting pieces, enabling a damaged LED element to be replaced by a spare one without needing a separate pixel driving circuit, thus maintaining display functionality and simplifying the replacement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED elements are used in Micro-LED display panels, then high brightness and low power consumption are achieved, but the display effectiveness is reduced when LED elements are damaged
Solution Approach 1:
The patent pre-arranges spare LED elements in dedicated setting regions between adjacent sub-pixels before any damage occurs. These spare elements are positioned and electrically connected in advance, so that when an LED element is damaged, the replacement can be performed quickly by simply transferring the spare element without complex circuit reconfiguration, thus maintaining display effectiveness while preserving the high brightness characteristics of LED elements.
2Reliability
If LED elements are replaced when damaged, then display functionality can be restored, but the replacement process requires extremely high precision due to the small size of LED elements
Solution Approach 1:
The patent designs the electrode connecting pieces to serve multiple functions: they connect both the original LED elements and the spare LED elements, and they can be shared by multiple adjacent sub-pixels. This universal design allows the same connecting structure to be used for both normal operation and replacement operations, significantly reducing the precision requirements for replacement while ensuring display functionality is restored.
Solution Approach 2:
The patent introduces spare LED element setting regions as intermediary structures between adjacent sub-pixels. These setting regions contain pre-positioned spare LED elements and shared electrode connecting pieces that act as mediators during replacement. Instead of directly manipulating the tiny LED element in its original position, the replacement process uses the intermediary setting region to facilitate easier transfer and connection, reducing the required manufacturing precision.
3Reliability
If spare LED elements are added to enable replacement, then display effectiveness is improved, but the device structure becomes more complex
Solution Approach 1:
The patent merges the functions of multiple components into shared structures. Adjacent sub-pixels share common electrode connecting pieces and common spare LED element setting regions, rather than each sub-pixel having dedicated replacement components. This merging approach reduces the overall number of components and simplifies the device structure while still enabling effective replacement to maintain display effectiveness.
Data Source
AI summary
Disclosed are a display panel and a display device. The display panel includes multiple sub-pixels disposed on a side of a base substrate and multiple first electrode connecting pieces and second electrode connecting pieces. Each sub-pixel includes a pixel driving circuit and an LED element. At least part of adjacent rows of sub-pixels are provided with multiple spare LED element setting regions, the spare LED element setting regions being disposed on at least one side of each row of sub-pixels, and/or at least part of adjacent columns of sub-pixels are provided with the multiple spare LED element setting regions, the spare LED element setting regions being disposed on at least one side of each column of sub-pixels. Two adjacent sub-pixels on two sides of a spare LED element setting region are respectively a first sub-pixel and a second sub-pixel. The first electrode connecting piece electrically connected to the first sub-pixel and the first electrode connecting piece electrically connected to the second sub-pixel both extend to the spare LED element setting region between the first sub-pixel and the second sub-pixel and are insulated from each other. The spare LED element setting region is further provided with a spare second electrode connecting piece.