Liquid Crystal Display Electrode Temperature Measurement and Heating

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Solution Overview

Problem

Existing liquid crystal display devices face challenges in accurately measuring the temperature of liquid crystals due to the distance of temperature detectors from the display panel, leading to reduced accuracy and increased device size, as they require separate spaces for temperature detection and heating systems.

Innovation Solution

A liquid crystal display device with electrodes arranged in parallel along the display surface, where a measuring unit assesses electric resistance values to determine temperature and an application unit applies heat based on these measurements, integrating temperature measurement and heating functions for improved accuracy and reduced size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a temperature detector is arranged outside the display panel, then the device structure is simplified, but the temperature measurement accuracy is insufficient

Engineering Contradiction:
Improvedevice structureVSAvoidtemperature measurement accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent combines the temperature detector and heater into a single integrated component located within the display panel. The temperature detector is positioned in close proximity to the liquid crystal layer, allowing it to accurately measure the temperature of the liquid crystals while maintaining a simplified device structure without requiring separate external detector and heater components.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If separate spaces are provided for temperature detector and heater, then each component can be independently arranged, but the product size increases

Engineering Contradiction:
Improvecomponent arrangement flexibilityVSAvoidproduct size
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent merges the temperature detector and heater into a single integrated component that occupies a unified space within the display panel. This integration eliminates the need for separate spaces for each component, thereby reducing the overall product size while still allowing independent functional arrangement of the detector and heater elements within the integrated structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated component serves multiple functions simultaneously - it acts as both a temperature detector and a heater. This multi-functionality allows the component to perform temperature measurement and heating operations without requiring separate dedicated spaces, thus reducing product size while maintaining operational flexibility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If the temperature detector is positioned far from the liquid crystals, then the device structure is simpler, but the temperature measurement accuracy decreases

Engineering Contradiction:
Improvedetector positioning structureVSAvoidliquid crystal temperature measurement accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The temperature detector is integrated within the display panel structure in close proximity to the liquid crystal layer, eliminating the need for complex external positioning mechanisms. This integration allows the detector to be positioned optimally close to the liquid crystals for accurate temperature measurement while maintaining a relatively simple device structure.

Inventive Principle:
Principle #5Merging (Combining)

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 allows for precise temperature measurement and heating control, enhancing the accuracy of liquid crystal display operations and preventing abnormal displays due to high temperatures, while reducing the device's size by integrating measurement and heating functions.

Implementation Method 1

a measuring unit that measures electric resistance values of the electrodes; a specifying unit that specifies a temperature of the liquid crystal display unit based on the electric resistance values of the electrodes

Methodology Applied
Scientific EffectElectrical resistance temperature dependence: Electrical Resistance

Implementation Method 2

an application unit that applies, to the electrodes, a voltage for causing the electrode to generate heat based on the temperature of the liquid crystal display unit

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS9715299B2Liquid crystal display device
Publication Date: 2017.07.25 MAGNOLIA WHITE CORP
  • US9715299B2 patent drawing
  • US9715299B2 patent drawing
  • US9715299B2 patent drawing

AI summary

According to an aspect, a liquid crystal display device includes: a liquid crystal display unit that displays an image; a plurality of electrodes arranged in the liquid crystal display unit in parallel with one direction along a display surface of the liquid crystal display unit; a measuring unit that measures electric resistance values of the electrodes; a specifying unit that specifies a temperature of the liquid crystal display unit based on the electric resistance values of the electrodes; and an application unit that applies, to the electrodes, a voltage for causing the electrode to generate heat based on the temperature of the liquid crystal display unit.