Gate Driving Circuit Clock Signal Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gate driving circuits in liquid crystal displays experience unnecessary circuit losses due to continuous transmission of clock signals to all driving signal output circuits, leading to inefficiencies.
Innovation Solution
The proposed gate driving circuit incorporates switch units between adjacent driving circuit units, which are activated by driving signals to allow or block clock signals, ensuring that only necessary clock signals are transmitted to each unit, reducing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clock signals are continuously transmitted to all driving signal output circuits, then all circuits can receive clock signals for operation, but unnecessary circuit losses occur in circuits that are not yet driven
Solution Approach 1:
The patent applies preliminary action by using the output signal from a previous driving circuit unit to preemptively control the switch unit before the clock signal reaches subsequent circuits. This ensures that clock signals are blocked from unreached circuits in advance, preventing energy loss before it occurs.
Solution Approach 2:
The switch unit acts as an intermediary between the clock signal source and the driving circuit units. It selectively transmits or blocks clock signals based on control signals, ensuring that only necessary circuits receive clock signals at any given time, thereby eliminating unnecessary power consumption in inactive circuits.
2Loss of energy
If switch units are added to control clock signal transmission, then power consumption is reduced by blocking unnecessary clock signals, but device complexity increases
Solution Approach 1:
The patent merges the switch unit's control function with the existing driving circuit units. The switch unit is controlled by output signals from adjacent driving circuit units, integrating the control mechanism into the existing circuit architecture rather than adding entirely separate control systems, thus minimizing complexity increase.
Solution Approach 2:
The switch unit serves multiple functions: it acts as a clock signal distributor, a power consumption controller, and a signal routing element. By making the switch unit multi-functional, the patent reduces the need for additional dedicated components, thereby limiting the increase in device complexity while achieving energy savings.
Data Source
AI summary
A gate driving circuit includes several driving circuit units and several switch units. Each driving circuit unit outputs several driving signals to several scan lines sequentially. One of the switch units is respectively disposed between two adjacent driving circuit units and conducts or blocks a first and a second clock signal transmitted to driving circuit units.