Liquid Crystal Cell With Surface Modified Infrared Material

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current liquid crystal display (LCD) technologies face challenges in achieving high definition, high contrast ratio, and high brightness while also meeting diverse functional requirements, particularly in emitting infrared (IR) light effectively for health benefits and reducing electromagnetic radiation impact.

Innovation Solution

A liquid crystal cell with an IR material layer, made from a mixture of biochar, tourmaline, far-infrared ceramic, jade powder, aluminum oxide, copper(II) oxide, silver(I,III) oxide, and silicon carbide, is integrated into the LCD structure, and the IR material is surface modified to emit IR light by nanocrystallization and surface property modification, ensuring compatibility and optimal performance with the liquid crystal cell components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional LCD materials are used, then display performance (definition, contrast ratio, brightness) can be achieved, but the ability to emit infrared light and provide health benefits is insufficient

Engineering Contradiction:
Improveinfrared emission capabilityVSAvoidmaterial composition complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies composite materials by combining multiple IR-emitting substances (biochar, tourmaline, far-infrared ceramic, jade powder, aluminum oxide, copper oxide, silver oxide, and silicon carbide) into a single layer structure. This composite approach enables the LCD to emit infrared light across multiple wavelengths, providing health benefits while maintaining display performance without requiring multiple separate components.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent changes the physical and chemical parameters of the IR material layer by controlling particle size distribution (nanometer to micrometer range) and surface properties through modification treatments. These parameter changes optimize the infrared emission efficiency and compatibility with liquid crystal cell components, resolving the contradiction between enhanced IR emission and material complexity.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If IR material is added to enhance infrared emission, then health benefits and heat exchange improve, but compatibility with liquid crystal cell components may deteriorate

Engineering Contradiction:
Improveelectromagnetic radiation reductionVSAvoidcomponent compatibility
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent modifies surface properties of the IR material particles through chemical treatment to adjust their surface energy, charge distribution, and wettability. These parameter changes ensure compatibility with liquid crystal molecules and electrode surfaces, preventing aggregation and ensuring uniform distribution, thereby maintaining reliability while enhancing infrared emission for electromagnetic radiation reduction.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by creating distinct functional zones within the IR material layer, where particles with different compositions and surface properties are strategically distributed. This ensures that specific regions provide optimal compatibility with different cell components (substrates, electrodes, liquid crystal) while collectively delivering comprehensive infrared emission for health benefits.

Inventive Principle:
Principle #3Local quality

3Use of energy by moving object

If particle size of IR material is reduced to nanometer scale, then infrared emission efficiency improves, but manufacturing precision and dispersion uniformity become more difficult to control

Engineering Contradiction:
Improveinfrared emission efficiencyVSAvoidparticle size control
Core Design Contradiction:
Use of energy by moving objectVSManufacturing precision

Solution Approach 1:

The patent uses a composite particle size distribution strategy, combining nanometer-scale particles (for high infrared emission efficiency) with micrometer-scale particles (for easier handling and uniform dispersion). This multi-scale composite approach maintains high energy efficiency while improving manufacturing precision by reducing the challenges associated with handling exclusively ultra-fine nanoparticles.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent controls the particle size parameter within a specific range (nanometer to micrometer) rather than targeting a single size. This parameter optimization balances infrared emission efficiency (which improves with smaller size) against manufacturing precision and dispersion uniformity (which are easier to control with larger particles), achieving the best overall performance.

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

The modified IR material enhances the LCD's ability to emit IR light with higher emissivity, improving heat exchange and bio-cell activation, thereby enhancing metabolism and immune competence, while maintaining the display device's performance and reducing electromagnetic radiation effects.

Implementation Method 1

the IR material is surface modified so as to emit IR light upon being irradiated

Methodology Applied
Scientific EffectInfrared radiation emission: Infrared Radiation

Implementation Method 2

emit IR light when being irradiated by light

Methodology Applied
Scientific EffectPhoto-thermal conversion:

Implementation Method 3

modifying surface property of the nanocrystallized nanoparticles such that the nanoparticles are compatible and have matching property with a corresponding structural layer of a liquid crystal cell

Methodology Applied
Scientific EffectSurface modification:

Implementation Method 4

nanocrystallizing the IR material to obtain nanoparticles of the IR material

Methodology Applied
Scientific EffectNanocrystallization: Crystallisation

Data Source

PatentUS9310636B2Liquid crystal cell, liquid crystal display device and surface modification method for infrared material
Publication Date: 2016.04.12 BEIJING BOE OPTOELECTRONCIS TECH CO LTD
  • US9310636B2 patent drawing
  • US9310636B2 patent drawing

AI summary

A LCD device comprising the liquid crystal cell and a surface modification method for an IR material are provided. The IR material is obtained via the surface modification method, and a component comprising the IR material is disposed in the liquid crystal cell. As the liquid crystal cell can emit infrared light, it is beneficial for healthy. The surface modified IR material is compatible and has optimal matching property with the structure of the liquid crystal cell, the heat exchange capacity between the IR material and the backlight as well the ambient light can be improved without compromising the performance of the LCD device, and the surface modified IR material will emit far-IR light of specific wavelength with higher emissivity.