Gate Driver Charge Recycling for LCD Signal Stability
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Solution Overview
Problem
Existing gate driving technologies in LCD monitors face inefficiencies due to parasitic capacitors causing variations in gate driving signals, leading to image content biases and increased power consumption, as they require additional complex control circuits to adjust waveforms.
Innovation Solution
A gate driver with a logic circuit, buffers, a switch module, and a charge recycle module that generates switch signals, sharing signals, and utilizes charge recycling to adjust gate driving signals by sharing charges between buffers and loads, reducing power consumption and mitigating waveform variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional complex control circuits are used to adjust waveforms, then waveform variations are mitigated, but device complexity increases
Solution Approach 1:
The charge recycle module enables the gate driver to automatically recycle charges from parasitic capacitors during the falling edge of gate driving signals and reuse them during the rising edge, without requiring external control circuits. The system serves itself by capturing and reutilizing its own waste charges internally.
Solution Approach 2:
Instead of discarding the charges stored in parasitic capacitors during the falling edge of gate driving signals, the invention recovers these charges through the charge recycle module and reuses them during the rising edge, transforming waste resources into useful energy.
2Manufacturing precision
If additional control circuits are added to adjust waveforms, then image content biases are reduced, but power consumption increases
Solution Approach 1:
The gate driver recycles charges internally without requiring additional power-consuming control circuits. The charge recycle module captures charges during signal transitions and reuses them, creating a self-sustaining energy recovery system that reduces overall power consumption while maintaining signal accuracy.
Solution Approach 2:
The invention recovers charges that would otherwise be wasted during the falling edge of gate driving signals and reuses them during the rising edge, eliminating the need for additional power-consuming control circuits while maintaining image content accuracy.
3Stability of the object's composition
If waveform adjustment circuits are added, then gate driving signal stability is improved, but device complexity increases
Solution Approach 1:
The charge recycle module is integrated into the existing gate driver structure, merging the charge recycling function with the buffer and parasitic capacitor elements. This combination approach stabilizes gate driving signals without adding separate complex control circuits, as the recycling function is embedded within the existing circuit topology.
4Loss of energy
If charges are recycled and reutilized, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The charge recycle module creates a self-sustaining energy recovery system where charges are automatically captured during falling edges and reused during rising edges without external control. This internal charge recycling mechanism reduces power consumption while adding minimal structural complexity.
Solution Approach 2:
The invention recovers charges that would otherwise be discarded during signal transitions and reuses them for subsequent transitions, creating an energy recovery loop that reduces power consumption with a relatively simple added structure.
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 waveform variations and reduces power consumption by recycling and re-utilizing charges, eliminating the need for additional complex control circuits and enhancing the gate driving signals with less electric energy, thereby improving the efficiency of LCD monitor operations.
Implementation Method 1
a charge recycle module coupled between the plurality of buffers and a reference voltage source, for sharing charges with a plurality of loads according to the plurality of sharing signals
Data Source
AI summary
A gate driver for controlling a display apparatus is disclosed. The gate driver includes a logic circuit for generating a plurality of switch signals, a breaking signal and a plurality of sharing signals, a plurality of buffers, each for determining to provide a first voltage or a second voltage according to one of the plurality of switch signals to generate a gate driving signal, and a charge recycle module for sharing charges with a plurality of loads according to the plurality of sharing signals.