Anti-Peep Module With Temperature-Compensated Driving Voltage
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Solution Overview
Problem
Existing anti-peeping films in electronic devices experience a loss of privacy protection effect in low temperature environments due to affected action response times.
Innovation Solution
An anti-peep module with a liquid crystal layer, electrode layers, and a temperature sensor that adjusts driving voltage based on ambient temperature to maintain effective privacy protection across varying temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed driving voltage is applied to the anti-peep element, then the device structure is simple, but the privacy protection effect is lost in low temperature environments
Solution Approach 1:
The patent implements dynamic voltage adjustment by making the driving voltage adaptive to temperature changes. The voltage adjustment circuit dynamically modifies the driving voltage based on temperature sensor feedback, transitioning from a static fixed voltage system to a dynamic temperature-compensated system. This resolves the contradiction by allowing the system to maintain reliability across varying temperatures while accepting increased device complexity through the voltage adjustment circuit.
Solution Approach 2:
The patent changes the electrical parameter (driving voltage) in response to temperature parameter changes. By monitoring temperature and adjusting the driving voltage accordingly, the system compensates for temperature-induced performance degradation. This parameter change strategy maintains privacy protection reliability in low temperature environments while requiring additional circuitry for voltage adjustment.
2Reliability
If the driving voltage is increased to maintain anti-peep effect at low temperature, then the privacy protection is maintained, but the energy consumption increases
Solution Approach 1:
The system dynamically adjusts voltage based on actual temperature conditions rather than maintaining a constantly high voltage. The voltage adjustment circuit only increases driving voltage when the temperature sensor detects low temperature conditions, and reduces voltage when temperatures are normal. This dynamic approach maintains anti-peep reliability when needed while minimizing energy consumption during normal operating conditions.
Solution Approach 2:
The driving voltage parameter is changed selectively based on temperature conditions. Instead of maintaining a high fixed voltage that would consume excessive energy continuously, the system changes the voltage parameter only when temperature drops below certain thresholds, thereby maintaining anti-peep effect reliability while optimizing energy consumption across different operating conditions.
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 module ensures consistent privacy protection by dynamically adjusting driving voltage, maintaining functionality in both normal and low temperature conditions.
Implementation Method 1
The anti-peep element includes a liquid crystal layer, a first anti-peep electrode layer and a second anti-peep electrode layer. The liquid crystal layer is located between the first anti-peep electrode layer and the second anti-peep electrode layer.
Implementation Method 2
The voltage adjustment circuit is coupled to the temperature sensor. The temperature sensor is adapted to sense an ambient temperature.
Data Source
Figure 1~2
Figure 3A~3B
Figure 4A~4B
AI summary
An anti-peep module including an anti-peep element, a driving circuit, a voltage adjustment circuit and a temperature sensor is provided. The anti-peep element includes a liquid crystal layer, a first anti-peep electrode layer and a second anti-peep electrode layer. The liquid crystal layer is located between the first and second anti-peep electrode layers. The temperature sensor is adapted to sense an ambient temperature. The voltage adjustment circuit is coupled to the temperature sensor. The driving circuit is coupled to the voltage adjustment circuit and the anti-peep element. When the ambient temperature is a first ambient temperature and the anti-peep element operates in an anti-peep mode, the driving circuit outputs a first driving voltage to the anti-peep element; when the ambient temperature is a second ambient temperature and the anti-peep element operates in the anti-peep mode, the driving circuit outputs a second driving voltage to the anti-peep element.