Variable Operation Voltage Light-Emitting Device for Power Reduction
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Solution Overview
Problem
Electronic products face issues with insufficient brightness and poor display quality due to fixed operation voltage, leading to excessive power consumption in peak modes.
Innovation Solution
A light-emitting device with a variable operation voltage is introduced, featuring a driving transistor and a light-emitting diode, where the operation voltage can be adjusted between normal and peak modes to maintain display quality while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a fixed operation voltage is used to ensure sufficient brightness and display quality, then the light intensity is maintained, but the power consumption increases excessively in peak modes
Solution Approach 1:
The patent implements a variable operation voltage system that dynamically adjusts the voltage supplied to the light-emitting diode based on display requirements. The voltage can switch between a first voltage value (lower) for normal display modes and a second voltage value (higher) for peak brightness modes, allowing the system to adapt its power consumption to actual needs while maintaining sufficient light intensity when required
Solution Approach 2:
The patent changes the operation voltage parameter from a fixed value to a variable value that can take different voltage levels. By adjusting the voltage parameter between a first voltage value and a second voltage value, the system optimizes the balance between light intensity output and power consumption, achieving sufficient brightness only when necessary and reducing power consumption during normal operation
2Use of energy by moving object
If a variable operation voltage is used to reduce power consumption, then the power usage is optimized, but the light intensity may be affected
Solution Approach 1:
The system dynamically switches between different voltage levels based on display mode requirements. During normal operation, a lower first voltage value is applied to reduce power consumption. When peak brightness is needed, the system transitions to a higher second voltage value to ensure sufficient light intensity, thus dynamically balancing power consumption and light output
Solution Approach 2:
The operation voltage parameter is changed from a single fixed value to multiple discrete voltage values. The system selectively applies a first voltage value for power-saving operation and a second voltage value for high-brightness requirements, ensuring that light intensity is maintained at adequate levels while optimizing overall power consumption
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 allows for reduced power consumption in normal modes without affecting light intensity, enabling efficient operation in both modes by adjusting the voltage difference across the driving transistor, thus optimizing power usage.
Implementation Method 1
a light-emitting unit (510). The light-emitting unit includes a driving transistor (511) and a light-emitting diode (512)
Data Source
AI summary
A light-emitting device and display equipment are disclosed. The light-emitting device includes a light-emitting unit. The light-emitting unit includes a driving transistor and a light-emitting diode. The driving transistor includes a first terminal, a second terminal and a gate terminal. The first terminal is used to receive an operation voltage. The light-emitting diode is coupled to the second terminal and used to receive a driving current. The operation voltage is variable.