Micro LED Display Panel Border Width Reduction via Internal Control Element Placement
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Solution Overview
Problem
Micro light emitting diode display panels face challenges in achieving both high display quality and a narrow border due to the large size of control elements, which are typically placed on the periphery and increase border width.
Innovation Solution
The solution involves positioning control elements within the pixel regions of the micro light emitting diode display panel, with a closer proximity to green micro light emitting diodes than blue micro light emitting diodes, and optimizing the size and arrangement of micro light emitting diodes and control elements to minimize border width and prevent dark lines or spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If control elements are disposed on the periphery region of the micro light emitting diode display panel, then the display quality is maintained, but the border width increases
Solution Approach 1:
The patent moves control elements from the periphery region (2D boundary) into the pixel regions (2D display area), utilizing the internal space of existing structures rather than expanding the external boundaries. This dimensional repositioning allows border width reduction while maintaining display quality through strategic placement within the pixel matrix.
Solution Approach 2:
The control elements are nested within the pixel regions, specifically positioned in relationship to the micro light emitting diodes (red, green, blue sub-pixels). By embedding control elements within the existing pixel structure rather than placing them externally, the design achieves space efficiency and reduces border requirements.
2Device complexity
If control elements are disposed closer to blue micro light emitting diodes, then the layout is simplified, but dark lines and spots appear in the display
Solution Approach 1:
The patent applies different distance relationships between control elements and different colored micro light emitting diodes based on human visual characteristics. Specifically, the control element is positioned closer to the green micro light emitting diode than to the blue micro light emitting diode, creating asymmetric local arrangements that compensate for human eye sensitivity variations and prevent visible dark lines and spots.
Solution Approach 2:
The invention considers the different perceptual characteristics of various colors (red, green, blue) to the human eye when positioning control elements. By adjusting the spatial relationship between the control element and each colored micro light emitting diode based on human color sensitivity, the design prevents visible display defects while maintaining layout feasibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces border width while maintaining or improving display quality by strategically placing control elements closer to green micro light emitting diodes, which are more sensitive to human vision, thereby avoiding dark lines and spots, and allowing for better color control and gray levels.
Implementation Method 1
Each of the light emitting units includes a plurality of micro light emitting diodes. The micro light emitting diodes at least have a red micro light emitting diode, a green micro light emitting diode, and a blue micro light emitting diode.
Data Source
AI summary
A micro light emitting diode display panel including a substrate, a plurality of control elements, and a plurality of light emitting units is provided. The control elements and the light emitting units are disposed on the substrate. Each of the light emitting units is electrically connected to one of the control elements, and each of the light emitting units includes a plurality of micro light emitting diodes. The micro light emitting diodes at least have a red micro light emitting diode, a green micro light emitting diode, and a blue micro light emitting diode. A shortest distance between the green micro light emitting diode and the one of the control elements is less than a shortest distance between the blue micro light emitting diode and the one of the control elements.