Micro LED Display Panel Layout for Higher Pixel Density
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Solution Overview
Problem
Micro LED display technology faces challenges in increasing pixel density due to size restrictions and required spacing between adjacent Micro LEDs.
Innovation Solution
A display panel design featuring a base substrate with a defining layer and light-emitting devices, where the defining layer has openings for multiple light-emitting devices of different colors, allowing for increased pixel density by stacking light-emitting devices and optimizing their placement on bearing surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If Micro LED display technology is used, then power consumption is reduced and product life is extended, but pixel density cannot be increased due to size restrictions
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement of Micro LEDs to a three-dimensional stacked configuration. Multiple light-emitting devices are arranged vertically along the thickness direction, with first light-emitting devices and second light-emitting devices positioned at different heights. This dimensional change allows multiple pixels to occupy the same lateral footprint area, thereby increasing pixel density without requiring smaller individual Micro LED components.
2Quantity of substance
If multiple light-emitting devices are stacked to increase pixel density, then the transfer process becomes more complex, but the patent simplifies it through bearing surfaces
Solution Approach 1:
The patent introduces bearing surfaces as intermediary structures on the substrate to facilitate the transfer and positioning of stacked light-emitting devices. These bearing surfaces provide mechanical support and alignment references, enabling precise placement of multiple devices without requiring complex transfer processes. The bearing surfaces act as mediators between the substrate and the stacked light-emitting devices, simplifying the manufacturing process while maintaining high pixel density.
Data Source
AI summary
A display panel includes a base substate, a defining layer, and a light-emitting device. The defining layer is located over one side of the base substrate and includes a defining part and an opening between defining parts. The opening includes a first opening and a second opening. The defining part has a side surface. The side surface has a first side surface and a second side surface. The side surface also has a first bearing surface between the first side surface and the second side surface. The light-emitting device is located in the opening. The light-emitting device has a first light-emitting device located in the first opening and a second light-emitting device located in the second opening. The first light-emitting device and the second light-emitting device are light-emitting devices of different colors. Moreover, at least a portion of the second light-emitting device is disposed over the first bearing surface.