Gate Driving Circuit Dynamic Voltage Regulation for Display Leakage
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Solution Overview
Problem
Current gate driving circuits for display devices are inadequate in accommodating different frame rates, particularly failing to efficiently manage leakage current and voltage regulation across varying update rates, such as 120 Hz and 60 Hz, which affects display quality and power consumption.
Innovation Solution
A gate driving circuit with serially coupled shift registers, incorporating a driving circuit, pull-up circuit, and auxiliary voltage regulator circuits that adjust voltage levels based on control signals to manage leakage current and voltage regulation, utilizing transistors and voltage regulator circuits to support different frame rates by switching between enable and disable levels for the control signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the gate driving circuit operates at a higher frame rate (120 Hz), then the display quality is improved, but the leakage current increases and power consumption rises
Solution Approach 1:
The patent implements dynamic voltage adjustment by switching between different voltage levels (first voltage level and second voltage level) based on the operating frame rate. The voltage regulator dynamically changes the voltage supplied to the shift register circuit according to whether it is operating at a higher or lower frame rate, thereby optimizing power consumption for each operating condition.
Solution Approach 2:
The patent changes the voltage parameter of the shift register circuit based on the operating frame rate. By adjusting the voltage level according to the frame rate (120 Hz vs 60 Hz), the circuit optimizes the balance between display quality and power consumption, reducing leakage current when operating at lower frame rates.
2Illumination intensity
If the gate driving circuit operates at a higher frame rate (120 Hz), then the display quality is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic voltage adjustment by switching between different voltage levels (first voltage level and second voltage level) based on the operating frame rate. The voltage regulator dynamically changes the voltage supplied to the shift register circuit according to whether it is operating at a higher or lower frame rate, thereby optimizing power consumption for each operating condition.
Solution Approach 2:
The patent changes the voltage parameter of the shift register circuit based on the operating frame rate. By adjusting the voltage level according to the frame rate (120 Hz vs 60 Hz), the circuit optimizes the balance between display quality and power consumption, reducing leakage current when operating at lower frame rates.
3Loss of energy
If the gate driving circuit operates at a lower frame rate (60 Hz), then the power consumption is reduced, but the display quality may deteriorate
Solution Approach 1:
The patent implements dynamic voltage adjustment by switching between different voltage levels (first voltage level and second voltage level) based on the operating frame rate. The voltage regulator dynamically changes the voltage supplied to the shift register circuit according to whether it is operating at a higher or lower frame rate, thereby optimizing power consumption for each operating condition.
Solution Approach 2:
The patent changes the voltage parameter of the shift register circuit based on the operating frame rate. By adjusting the voltage level according to the frame rate (120 Hz vs 60 Hz), the circuit optimizes the balance between display quality and power consumption, reducing leakage current when operating at lower frame rates.
4Illumination intensity
If the voltage is increased to maintain display quality at lower frame rates, then the display quality is maintained, but the leakage current increases
Solution Approach 1:
The patent implements dynamic voltage adjustment by switching between different voltage levels (first voltage level and second voltage level) based on the operating frame rate. The voltage regulator dynamically changes the voltage supplied to the shift register circuit according to whether it is operating at a higher or lower frame rate, thereby optimizing power consumption for each operating condition.
Solution Approach 2:
The patent changes the voltage parameter of the shift register circuit based on the operating frame rate. By adjusting the voltage level according to the frame rate (120 Hz vs 60 Hz), the circuit optimizes the balance between display quality and power consumption, reducing leakage current when operating at lower frame rates.
Data Source
AI summary
A gate driving circuit comprises a plurality of shift registers coupled in serial. An nth shift register includes a driving circuit, a pull-up circuit and a first auxiliary voltage regulator circuit. The driving circuit is electrically coupled to an output node and a first node. The driving circuit is configured to receive a clock signal and output a gate signal according to the clock signal. The pull-up circuit is electrically coupled to the driving circuit. The first auxiliary voltage regulator circuit is electrically coupled to the pull-up circuit and a second node. The first auxiliary voltage regulator circuit is configured to receive a control signal and the second node corresponding to a second voltage.