Dynamic Driving Voltage Circuit for Display Panel Power Reduction
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Solution Overview
Problem
Existing driving circuits for display panels face high power consumption during the charging process, leading to excessive energy loss and inefficiency.
Innovation Solution
A driving circuit that incorporates a power supply circuit capable of increasing the driving power supply voltage during the charging process, utilizing either a voltage converting circuit or a charge pump circuit to reduce power consumption by varying the voltage level from a low to a predetermined high level, thereby minimizing energy wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a traditional fixed voltage power supply is used during the charging process, then the circuit structure is simple, but the power consumption is high due to excessive energy loss
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed voltage power supply into a dynamic voltage power supply that adjusts the driving voltage during the charging process. The power supply circuit changes the voltage level from a low initial level to a predetermined high level as the display panel charges, optimizing power delivery at different charging stages and reducing overall energy loss.
Solution Approach 2:
The patent implements parameter changes by varying the driving voltage parameter throughout the charging process. Instead of maintaining a constant voltage, the system dynamically adjusts the voltage parameter based on the charging state of the display panel, transitioning from low voltage at the beginning of charging to high voltage as charging progresses, thereby minimizing energy waste.
2Use of energy by moving object
If a fixed driving voltage is applied throughout the charging process, then the control is simple, but the power consumption efficiency is low
Solution Approach 1:
The power supply circuit dynamically adjusts the driving voltage during the charging process, transitioning from a low voltage level at the beginning to a predetermined high level as charging progresses. This dynamic control optimizes power consumption efficiency by matching the voltage output to the actual charging needs at each moment, rather than applying a constant high voltage throughout.
3Loss of energy
If the driving voltage is increased to reduce power consumption, then the energy efficiency improves, but the circuit complexity increases
Solution Approach 1:
The patent employs a power supply circuit capable of dynamic voltage adjustment, which increases the driving voltage from a low initial level to a predetermined high level during the charging process. This dynamic voltage modulation reduces energy wastage while implementing the complexity only where necessary - in the power supply circuit itself - rather than throughout the entire display driving system.
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 reduces power consumption by approximately 39-45% compared to traditional circuits, achieved through the use of a dc/dc converter or charge pump circuit that gradually increases the driving power supply voltage, minimizing energy loss during the charging process.
Implementation Method 1
a power supply circuit, and a driving unit, wherein the power supply circuit outputs a driving power supply voltage; the driving unit produces a driving signal according to a data signal and the driving power supply voltage for driving the display panel, and the voltage level of the driving power supply voltage increases to a predetermined level
Data Source
AI summary
The present invention provides a driving circuit for display panel, which comprises a power supply circuit and a driving unit. The power supply circuit outputs a driving power supply voltage. The driving unit produces a driving signal according to a data signal and the driving power supply voltage for driving the display panel. In addition, the voltage level of the driving power supply voltage increases to a predetermined level. Thereby, during the process of charging the display panel by the data driving circuit, the driving power supply voltage output by the power supply circuit increases from a low level to a predetermined level for reducing the power consumption of the driving circuit.