Micro LED Panel Layout With Isolated Pixels for Lower Power
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Solution Overview
Problem
Micro LED display panels face increased energy consumption, electrical power, and temperature due to the global control of all micro LEDs, which affects their performance and efficiency.
Innovation Solution
The micro LED display panel incorporates a micro LED array with two groups of micro LEDs: one group with isolation contacts at the bottom, always disabled to reduce energy consumption, and another group with conductive bottom contacts to form image patterns, thereby optimizing energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If all micro LEDs are controlled globally or individually to display image patterns, then the display functionality is achieved, but energy consumption, electrical power, and temperature increase
Solution Approach 1:
The micro LED array is segmented into two distinct groups: first group micro LED structures with isolation contacts that are always disabled, and second group micro LED structures with conductive bottom contacts that are enabled to form image patterns. This segmentation allows only the necessary portion of micro LEDs to be active, reducing overall energy consumption while maintaining full display functionality.
Solution Approach 2:
Different electrical properties are applied to different regions of the micro LED array. The first group micro LED structures have insulating isolation contacts at their bottoms, making them non-conductive and disabled. The second group micro LED structures have conductive bottom contacts, enabling them to be activated for display. This local differentiation optimizes energy usage by activating only the required regions.
2Temperature
If all micro LEDs are activated for display, then the image pattern formation is achieved, but the temperature of the micro LED display panel increases
Solution Approach 1:
By dividing the micro LED array into two groups with different electrical states, the patent reduces the total number of active micro LEDs. The first group remains disabled with isolation contacts, generating minimal heat, while only the second group is activated for display, thereby reducing overall panel temperature while maintaining display performance.
3Use of energy by moving object
If conventional LED structures are used without isolation contacts, then the manufacturing process is simpler, but energy consumption and temperature increase
Solution Approach 1:
Isolation contacts are selectively applied only to the first group micro LED structures, creating a local distinction in electrical properties. This targeted approach enables energy reduction in specific regions without requiring complex modifications to the entire device structure, balancing simplicity with energy efficiency.
Data Source
AI summary
A micro LED display panel includes a micro LED array area including a plurality of micro LED structures, wherein the plurality of micro LED structures includes a first group micro LED structures and a second group micro LED structures; a plurality of isolation contacts corresponding to the first group micro LED structures, one of the isolation contacts being formed at a bottom of each of first micro LED structure in the first group micro LED structures; and a plurality of conductive bottom contacts corresponding to the second group micro LED structures, one of the conductive bottom contacts being formed at a bottom of each of second micro LED structures in the second group micro LED structures.