Dimming Glass Heating Layer Low-Temperature Response
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Solution Overview
Problem
Dimming glass technologies, particularly dye liquid crystal dimming glass, experience high dark state transmittance and long response times in low-temperature environments, limiting their application scenarios.
Innovation Solution
Incorporating a heating layer between the liquid crystal dimming layer and the first glass substrate, which generates heat upon receiving an electric signal, to reduce transmittance and shorten response times in low-temperature environments, while using a dimming module with temperature sensors to control the heating function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dye liquid crystal dimming glass is used in low-temperature environments, then the dimming function is maintained, but the response time increases and dark state transmittance increases
Solution Approach 1:
The patent applies parameter changes by introducing a heating layer that actively adjusts the temperature parameter of the liquid crystal layer. In low-temperature environments, the heating layer increases the temperature to reduce liquid crystal viscosity, thereby restoring fast response times and low dark state transmittance while maintaining the dimming function.
Solution Approach 2:
The heating layer acts as an intermediary component between the electrical control system and the liquid crystal dimming layer. It mediates the temperature condition to enable the liquid crystal to maintain its performance characteristics in low-temperature environments, resolving the contradiction between maintaining dimming function and preserving response speed.
2Reliability
If dye liquid crystal dimming glass is used in low-temperature environments, then the dimming function is maintained, but the dark state transmittance increases
Solution Approach 1:
The heating layer changes the temperature parameter of the liquid crystal layer in low-temperature environments. This parameter change reduces the viscosity of the dye liquid crystal, enabling proper molecular alignment and dichroic dye orientation, thereby maintaining low dark state transmittance while preserving the dimming function.
3Loss of time
If heating layer is added to shorten response time, then response time is reduced, but device complexity increases
Solution Approach 1:
The heating layer is designed with multi-functionality, serving both as a heating element to reduce response time and as a temperature control mechanism to maintain optimal liquid crystal performance. This universal component addresses multiple issues (response time and dark state transmittance) without requiring separate systems, thereby limiting the increase in device complexity.
Solution Approach 2:
The heating function is merged into the existing dimming glass structure as an integrated layer between the glass substrate and the liquid crystal layer. This combination approach adds the necessary thermal control capability while minimizing structural complexity by using a unified design rather than separate independent systems.
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 solution effectively reduces dark state transmittance and shortens response times in low-temperature environments, broadening the application scenarios of dimming glass by integrating heating and dimming functions within the glass structure.
Implementation Method 1
a heating layer arranged between the liquid crystal dimming layer and the first glass substrate and configured to heat the liquid crystal dimming layer upon the receipt of an electric signal
Implementation Method 2
The liquid crystal dimming layer includes liquid crystal molecules arranged directionally, and dichroic dyes evenly distributed among the liquid crystal molecules
Implementation Method 3
dichroic dyes evenly distributed among the liquid crystal molecules
Data Source
AI summary
The present disclosure provides dimming glass, a dimming module and an operating method thereof. The dimming glass includes: a first glass substrate and a second glass substrate arranged opposite to each other; a first electrode and a second electrode arranged between the first glass substrate and the second glass substrate; a liquid crystal dimming layer arranged between the first glass substrate and the second glass substrate; and a heating layer arranged between the liquid crystal dimming layer and the first glass substrate, and configured to heat the liquid crystal dimming layer upon the receipt of an electric signal.