Micro LED Spliced Display With Seamless Assembly and Brightness Feedback
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Solution Overview
Problem
Traditional display splicing methods result in visible gaps and complex assembly processes, affecting display quality and increasing costs, especially as pixel pitch decreases and spliced displays are applied to smaller screens.
Innovation Solution
A spliced display design featuring a transparent substrate with micro LEDs and light sensors, where LED modules are bonded directly to the substrate without a tiling frame, eliminating visible gaps and simplifying assembly by allowing self-adjustment of brightness through integrated light sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional tiling frame splicing method is used to integrate multiple display units, then the assembly structure is formed, but visible gaps and black lines appear between displays, degrading display quality
Solution Approach 1:
The patent removes the tiling frame structure from the display assembly, extracting the problematic component that causes visible gaps. The display units are directly mounted adjacent to each other without the intermediate framing structure, thereby eliminating the source of visual discontinuity while maintaining structural integrity through alternative mounting methods
Solution Approach 2:
The patent merges adjacent display units by positioning them directly next to each other without intervening frames or gaps. The display panels are combined into a continuous visual surface through precise alignment and direct mounting, creating a unified display structure that eliminates the segmented appearance caused by traditional tiling frames
2Adaptability or versatility
If traditional tiling frame splicing method is used to assemble individual displays, then the displays can be integrated, but the assembly process becomes complicated and time-consuming
Solution Approach 1:
The patent extracts and eliminates the tiling frame component from the assembly process, removing the complex intermediate structure that requires multiple assembly steps. This allows display units to be directly mounted to the support structure, significantly simplifying the assembly procedure and reducing installation time while maintaining the ability to integrate multiple displays
Solution Approach 2:
Instead of assembling display units together through intermediate frames (traditional approach), the patent inverts the approach by mounting each display unit directly to the support structure. This reversal of the assembly sequence eliminates the need for complex frame assembly and simplifies the integration process
3Area of stationary object
If multiple small displays are spliced to form large video wall, then large display surface is achieved, but brightness consistency between individual displays and whole wall becomes difficult to maintain
Solution Approach 1:
The patent incorporates light sensors that detect the brightness output of each display unit and provides feedback signals to the control system. The control system uses this feedback information to adjust the driving signals to each individual display, ensuring that brightness levels are normalized across all units. This closed-loop feedback mechanism maintains uniform brightness across the entire large display surface, eliminating the inconsistency problem
4Illumination intensity
If external light sensing devices are used to adjust brightness of micro LEDs, then brightness adjustment is possible, but additional external devices and complexity are required
Solution Approach 1:
The patent merges the light sensing function directly into the display structure by integrating light sensors with the display units. These sensors are positioned to detect the brightness of adjacent micro LED modules, and the sensing, processing, and control functions are combined within the same system. This integration eliminates the need for separate external light sensing devices while maintaining the brightness adjustment capability
Solution Approach 2:
The display system performs its own brightness monitoring and adjustment through integrated light sensors and control circuits. Each display unit autonomously detects its own brightness output and adjusts accordingly through the control system, making the system self-regulating. This self-service approach eliminates dependency on external sensing devices and simplifies the overall system architecture
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 design enhances display quality by eliminating visible seams and simplifies the assembly process, ensuring consistent brightness across the display without the need for external light sensing devices.
Implementation Method 1
The light sensors are disposed on the transparent substrate and located between the micro LEDs and the transparent substrate. Each of the light sensors is adjacent to at least two of the micro LEDs
Data Source
AI summary
A spliced display including a transparent substrate, a plurality of micro (light-emitting diodes) LEDs, and a plurality of light sensors is provided. The transparent substrate has a display surface and a back surface opposite to each other. The driving backplanes are disposed on the back surface of the transparent substrate to be spliced with each other. The micro LEDs are disposed on the driving backplanes respectively and located between the micro LEDs and the transparent substrate. Each of the driving backplanes is corresponding to parts of the micro LEDs. The light sensors are disposed on the transparent substrate and located between the driving backplanes and the transparent substrate. Each of the light sensors is adjacent to at least two of the micro LEDs, and at least one of the at least two of the micro LEDs is adjacent to two of the light sensor.