Light Characteristics Enhancing Member for Wireless Signal Transmission

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Solution Overview

Problem

The reflection of wireless control signals at the interface between the base film and the light characteristics enhancing layer in electronic devices reduces the receive sensitivity of the signal-receiving member, limiting the operational range of remote-controlled electronic devices.

Innovation Solution

A light-emitting board with a signal-receiving member and a light characteristics enhancing member, where the base film has a first refractive index and the light characteristics enhancing layer has a second refractive index greater than the first, preventing total reflection of wireless control signals and enhancing their transmissivity through the light characteristics enhancing member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a light characteristics enhancing layer is formed on the base film to enhance light characteristics, then light diffusion and emission characteristics are improved, but wireless control signal reflection increases and receive sensitivity decreases

Engineering Contradiction:
Improvelight characteristicsVSAvoidreceive sensitivity
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent changes the refractive index parameter of the light characteristics enhancing layer to be lower than that of the base film. This parameter inversion prevents total internal reflection of wireless control signals at the interface, allowing signals to pass through to the signal-receiving member while still maintaining light diffusion characteristics for enhanced illumination.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite structure consisting of a base film and a light characteristics enhancing layer with specifically selected materials having different refractive indices. The composite material design allows simultaneous achievement of light diffusion enhancement and wireless signal transmission by carefully selecting materials whose refractive index relationship prevents signal reflection.

Inventive Principle:
Principle #40Composite materials

2Illumination intensity

If the light characteristics enhancing member is made thicker to improve light diffusion, then light characteristics are enhanced, but wireless control signal transmission is blocked due to increased reflection

Engineering Contradiction:
Improvelight diffusionVSAvoidremote control range
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

By changing the refractive index parameter relationship between layers (making the enhancing layer have a lower refractive index), the patent enables thicker light characteristics enhancing members to be used without blocking wireless signals. The refractive index inversion ensures that even with increased thickness, control signals can penetrate through the member to reach the receiver.

Inventive Principle:
Principle #35Parameter changes

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 configuration enhances the receive sensitivity of the signal-receiving member, allowing for longer-range remote control of electronic devices by minimizing signal reflection and maximizing signal transmissivity through the light characteristics enhancing member.

Implementation Method 1

the base film has a first refractive index, a light characteristics enhancing layer formed on a lower surface of the base film, wherein the light characteristics enhancing layer has a second refractive index that is greater than the first refractive index

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS8215785B2Electronic device and film for the same
Publication Date: 2012.07.10 SEOUL SEMICONDUCTOR
  • US8215785B2 patent drawing
  • US8215785B2 patent drawing
  • US8215785B2 patent drawing

AI summary

An electronic device that includes a light-emitting board and a light characteristics enhancing member. The light-emitting board includes a driving substrate, a semiconductor device disposed on a first surface of the driving substrate, and a signal-receiving member receiving an external wireless control signal to control the semiconductor device. The light characteristics enhancing member includes a base film disposed over the light-emitting board, and a light characteristics enhancing layer formed on a lower surface of the base film, the lower surface facing the light-emitting board. A second refractive index of the light characteristics enhancing layer is greater than a first refractive index of the base film. Therefore, the receive sensitivity of the external wireless control signal is improved.