LED Display Diffuser Units with Locating Structure

Solution Overview

Problem

Existing LED display screens appear grainy and exhibit moire patterns during photography, and the use of semitransparent glass or plastic plates to address these issues is limited by size constraints, leading to splicing gaps and inconsistent display effects due to difficulty in fixing these plates.

Innovation Solution

The LED display device incorporates a plurality of diffuser units adhered to the LED display panel with a locating structure to accurately position the diffuser units, eliminating the need for frames and reducing splicing gaps, while a one-way translucent membrane ensures improved light transmission and visual clarity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If semitransparent glass or plastic plates are used to eliminate graininess and moire patterns, then display quality is improved, but the plates are difficult to fix, causing distance inconsistency with the LED lamp plane and affecting display uniformity

Engineering Contradiction:

Improvedisplay qualityVSAvoidfixing stability

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

The patent divides the large semitransparent plate into multiple small diffuser units (e.g., 100x100mm or smaller), each independently adhered to the LED display panel. This segmentation eliminates the fixing difficulties of large plates while maintaining the optical benefits of diffusing the LED light to reduce graininess and moire patterns.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates locating structures (such as positioning holes, convex columns, or grooves) on the diffuser units before adhesion. These pre-designed locating structures guide the precise positioning of each diffuser unit during assembly, ensuring consistent distance from the LED lamp plane and eliminating the need for complex fixing procedures after adhesion.

Inventive Principle:

Principle #10Preliminary action

2Area of stationary object

If large-sized semitransparent plates are used to cover the entire display screen, then display coverage is improved, but transportation and installation become difficult, and splicing is required causing visible gaps

Engineering Contradiction:

Improvedisplay coverageVSAvoidinstallation difficulty

Core Design Contradiction:

Area of stationary objectVSEase of manufacture

Solution Approach 1:

The patent divides the large semitransparent plate into multiple small diffuser units (e.g., 100x100mm or smaller), each independently adhered to the LED display panel. This segmentation eliminates the fixing difficulties of large plates while maintaining the optical benefits of diffusing the LED light to reduce graininess and moire patterns.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates locating structures (such as positioning holes, convex columns, or grooves) on the diffuser units before adhesion. These pre-designed locating structures guide the precise positioning of each diffuser unit during assembly, ensuring consistent distance from the LED lamp plane and eliminating the need for complex fixing procedures after adhesion.

Inventive Principle:

Principle #10Preliminary action

3Stability of the object's composition

If frames are added to fix spliced glass or plastic plates, then structural stability is improved, but obvious splicing gaps appear like a television wall, degrading display effect

Engineering Contradiction:

Improvestructural stabilityVSAvoiddisplay effect

Core Design Contradiction:

Stability of the object's compositionVSIllumination intensity

Solution Approach 1:

The patent removes the frame structure entirely from the design. Instead of using frames to hold the diffuser units, each unit is independently adhered directly to the LED display panel using adhesive. This extraction of the frame eliminates the source of visible splicing gaps while the adhesive provides sufficient structural stability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent incorporates locating structures (such as positioning holes, convex columns, or grooves) on the diffuser units before adhesion. These pre-designed locating structures guide the precise positioning of each diffuser unit during assembly, ensuring consistent distance from the LED lamp plane and eliminating the need for complex fixing procedures after adhesion.

Inventive Principle:

Principle #10Preliminary action

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 solution effectively minimizes splicing gaps, enhances display consistency, and improves the visual experience by reducing graininess and maintaining display quality across larger sizes without the weight and flatness issues of traditional glass or plastic plates.

Implementation Method 1

the one-way translucent membrane transmits light along a direction from the first side to the second side

Methodology Applied

Scientific EffectOne-way light transmission: Reflection

Implementation Method 2

the encasing includes a plurality of diffuser units; each diffuser unit is adhered to the LED display panel

Methodology Applied

Scientific EffectLight diffusion: Scattering

Data Source

PatentUS9733401B2LED display system

Publication Date: 2017.08.15 LEYARD

AI summary

An LED display device includes an LED display panel (1); and an encasing, arranged on one side of the LED display panel (1). The encasing includes a plurality of diffuser units (10); each diffuser unit (10) is adhered to the LED display panel (1); and, a locating structure is arranged between the diffuser unit (10) and the LED display panel (1) so as to limit an adhesion position of the diffuser unit (10) on the LED display panel (1). The LED display device has a small splicing gap and a better display effect.