Special-Shaped LED Display Splicing via Module Segmentation

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Solution Overview

Problem

Current methods for LED light splicing, such as flexible modules and custom-shaped PCB modules, face challenges in adapting to special-shaped projects with varying arcs, leading to poor flatness, seam effects, and noticeable brightness and darkness splitting.

Innovation Solution

The method involves dividing a special-shaped display screen into regular quadrilateral and special-shaped modules, calculating the number of LED lights on each side using a specific equation to ensure even distribution, thereby avoiding brightness and darkness splitting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If flexible modules are used for special-shaped displays, then adaptability to curved shapes is improved, but manufacturing precision deteriorates due to inability to maintain flatness and proper LED distribution

Engineering Contradiction:
Improveadaptability to curved shapesVSAvoidflatness and LED distribution
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The special-shaped display is divided into multiple regular quadrilateral modules, each independently calculated for LED distribution. This segmentation allows each module to maintain manufacturing precision while collectively forming the curved special shape, resolving the contradiction between adaptability and precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each regular quadrilateral module is assigned specific LED distribution parameters based on its local position in the special-shaped display. The calculation method determines precise LED quantities for each side of every module, ensuring uniform brightness distribution across the entire curved surface while maintaining local manufacturing precision.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If custom-shaped PCB modules are used, then shape adaptability is improved, but device complexity increases due to non-standardized module designs

Engineering Contradiction:
Improveshape adaptabilityVSAvoidmodule design complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

While maintaining symmetric regular quadrilateral module shapes for simplicity, the invention creates asymmetric LED distribution patterns within each module based on calculation results. This allows the overall special-shaped display to achieve shape adaptability while individual modules remain simple and standardized.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The invention changes the parameters of LED quantity distribution within each regular quadrilateral module rather than changing the module shapes themselves. By calculating and adjusting LED quantities per side based on module position and area, the system achieves shape adaptability while maintaining simple standardized module designs.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If conventional LED distribution methods are used, then ease of manufacture is improved, but illumination intensity uniformity deteriorates due to brightness and darkness splitting

Engineering Contradiction:
Improveease of LED arrangementVSAvoidbrightness uniformity
Core Design Contradiction:
Ease of manufactureVSIllumination intensity

Solution Approach 1:

The calculation method provides feedback mechanisms by determining LED quantities based on mathematical formulas that account for module position, area, and adjacent module configurations. This feedback ensures uniform brightness distribution across the entire special-shaped display while maintaining ease of manufacture through systematic calculation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The invention achieves equipotentiality in illumination by calculating LED distributions to ensure uniform brightness across all modules. The mathematical calculation method balances LED quantities to create equal brightness levels throughout the special-shaped display, eliminating the brightness and darkness splitting phenomenon.

Inventive Principle:
Principle #12Equipotentiality

Data Source

PatentUS11556299B1Method for seamless splicing of special-shaped display screen and LED display screen
Publication Date: 2023.01.17 YAHAM OPTOELECTRONICS CO LTD
  • US11556299B1 patent drawing
  • US11556299B1 patent drawing

AI summary

The present application relates to a method for seamless splicing of a special-shaped display screen, including: dividing the special-shaped display screen into a number of regular quadrilateral modules and a number of special-shaped modules; calculating a number of LED light pieces on a first side of a regular quadrilateral module after division; determining the number of the LED light pieces arranged on the first side of the regular quadrilateral module; calculating a number of LED light pieces arranged on a second side of the regular quadrilateral module, and the second side is adjacent to the first side; and continuing for the number of special-shaped modules obtained above.