Micro LED Display Panel Control Element Arrangement
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Solution Overview
Problem
Micro LED display panels face challenges in display quality due to issues with electron mobility and uniformity, necessitating improvements in manufacturing processes to enhance performance and quality.
Innovation Solution
The implementation of a micro light-emitting diode display panel design that includes semiconductor circuit elements to control micro light-emitting diodes, with a non-display area housing control elements that manage a greater number of diodes, reducing the need for micro control elements in the display area and improving display quality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If micro control elements are densely arranged in the display area to control each micro light-emitting diode, then display quality can be improved, but device complexity and manufacturing difficulty increase significantly
Solution Approach 1:
The patent divides the control function into two segments: micro control elements within the display area and control elements in the non-display area. This segmentation allows the display area to maintain high pixel density while offloading control complexity to the periphery, resolving the contradiction between display quality and device complexity.
Solution Approach 2:
The patent extends the control element arrangement from a two-dimensional display area into the third dimension by utilizing the non-display area (periphery). This dimensional extension provides additional space for control elements without compromising the display area's pixel density and quality.
2Productivity
If more micro control elements are placed in the display area to control more diodes, then control coverage increases, but the area available for light emission decreases
Solution Approach 1:
The patent extracts control elements from the display area and relocates them to the non-display area. This extraction allows the display area to be fully utilized for light-emitting diodes while the non-display area accommodates the control elements, maintaining both control coverage and display area.
3Ease of manufacture
If conventional manufacturing processes are used for micro LEDs, then production cost is reduced, but electron mobility and uniformity are insufficient
Solution Approach 1:
The patent optimizes manufacturing parameters including substrate material selection, epitaxial growth conditions, and device structure design to enhance electron mobility and uniformity. These parameter changes improve reliability while maintaining compatibility with conventional manufacturing processes.
Data Source
AI summary
A micro LED display panel includes a display area, a plurality of micro light-emitting elements and a plurality of micro control elements. The plurality of micro light-emitting elements is disposed in the display area and include a plurality of first color micro LEDs and a plurality of second color micro LEDs. A light wavelength of each of the first color micro LEDs is different from a light wavelength of each of the second color micro LEDs. The plurality of micro control elements is disposed in the display area, and include a plurality of first color micro circuit-chips and a plurality of second color micro circuit-chips. The plurality of first color micro circuit-chips control the plurality of first color micro LEDs, and the plurality of second color micro circuit-chips control the plurality of second color micro LEDs.