Dimming Glass Temperature Sensor Feedback Control
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Solution Overview
Problem
Electronically controlled dimming glass experiences non-uniformity due to temperature variations affecting liquid crystal molecules, leading to undesirable bright spots and light transmittance inconsistencies.
Innovation Solution
Incorporating temperature sensors between the substrates of the dimming glass to detect temperature variations and adjust driving voltages accordingly, ensuring ideal deflection states of liquid crystal molecules and uniform light transmittance across the glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If temperature control is not implemented, then the device complexity is low, but the light transmittance uniformity deteriorates due to temperature variations causing bright spots and inconsistencies
Solution Approach 1:
The patent implements a feedback control system where temperature sensors detect the temperature of the liquid crystal layer and transmit signals to a control circuit. The control circuit adjusts driving voltages based on temperature feedback to maintain uniform light transmittance. This resolves the contradiction by automatically compensating for temperature variations without requiring complex manual intervention.
Solution Approach 2:
The patent replaces potential mechanical temperature control mechanisms with an electrical control system using transparent conductive materials and voltage adjustment. This substitution maintains light transmittance uniformity while avoiding the complexity of mechanical temperature control apparatus.
2Manufacturing precision
If temperature sensors are added to detect temperature variations, then the light transmittance uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent changes the electrical parameters (driving voltages and frequencies) of the liquid crystal layer based on detected temperature variations. By adjusting these parameters dynamically, the system compensates for temperature effects on light transmittance without adding complex structural components.
Solution Approach 2:
The control circuit performs multiple functions: it receives temperature sensor signals, processes the temperature data, determines appropriate compensation voltages, and drives the liquid crystal layer. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity.
3Manufacturing precision
If driving voltages are adjusted based on temperature detection, then the liquid crystal molecule deflection control is improved, but the use of energy increases
Solution Approach 1:
The patent implements dynamic adjustment of driving voltages and frequencies based on real-time temperature detection. The system adapts the electrical parameters dynamically to maintain optimal liquid crystal molecule deflection control under varying temperature conditions, rather than using fixed high energy inputs.
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 mitigates non-uniformity by accurately controlling liquid crystal molecule deflection and light transmittance, enhancing the dimming glass's performance by maintaining consistent light transmission across different temperature conditions.
Implementation Method 1
at least one temperature sensor disposed between the first base substrate and the second base substrate, wherein the at least one temperature sensor is configured to detect a temperature of the dye liquid crystal layer
Implementation Method 2
ensure ideal deflection states of liquid crystal molecules and uniform light transmittance across the glass
Implementation Method 3
Electronically controlled dimming glass experiences non-uniformity due to temperature variations affecting liquid crystal molecules
Data Source
AI summary
A dimming glass includes: a first base substrate and a second base substrate that are oppositely disposed, a dye liquid crystal layer disposed between the first base substrate and the second base substrate, and at least one temperature sensor disposed between the first base substrate and the second base substrate. The at least one temperature sensor is configured to detect a temperature of the dye liquid crystal layer.