Display Driving Circuit for Adjustable Gate Turn-On Voltage
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Solution Overview
Problem
Existing display panel production processes face challenges in increasing gate turn-on voltage for quality testing without increasing production costs or occupying more space, as current solutions require additional switching circuits.
Innovation Solution
A driving circuit with a switching module, control unit, and voltage adjusting module that allows for adjustable gate turn-on voltage by switching between input signals based on control signals, enabling increased voltage without significant process changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a switching circuit is added to increase gate turn-on voltage for quality testing, then the gate turn-on voltage can be increased to perform quality test, but the production costs increase and the occupied space on the panel becomes larger
Solution Approach 1:
The gate driving circuit uses its own internal switches (first switch and second switch) and existing circuit structures to achieve voltage adjustment functionality. The circuit serves itself by utilizing internal components rather than requiring external switching circuits, thereby avoiding increased device complexity and production costs while still enabling gate turn-on voltage adjustment for quality testing
2Manufacturing precision
If a switching circuit is added to increase gate turn-on voltage for quality testing, then the gate turn-on voltage can be increased to perform quality test, but the occupied space on the panel becomes larger
Solution Approach 1:
The gate driving circuit utilizes its own internal switches and circuit structures to achieve voltage adjustment. The first switch connects the output to the first input line, and the second switch connects the output to the second input line, allowing the circuit to adjust its own operating voltage without requiring external switching circuits. This self-service approach eliminates the need for additional panel space
3Reliability
If the gate turn-on voltage is increased for quality testing, then product quality can be improved, but additional switching circuits are required which increase production costs
Solution Approach 1:
The gate driving circuit uses its own internal switches and circuit structures to achieve voltage adjustment functionality. The control unit controls the first switch and second switch to connect the output to different input lines, enabling the circuit to adjust its own gate turn-on voltage. This approach improves product quality through better testing capability without requiring external switching circuits, thereby avoiding increased production costs
Data Source
AI summary
This application provides a driving circuit including a switching module, a control unit, a first switch, and a voltage adjusting module. A first input line of the switching module receives a first signal. When a control signal of the control unit is at a first potential, the switching module to enable an output line to electrically communicate with a first input line, and an output signal of the output line is equal or close to the first signal. When the control signal is at a second potential, the switching module to enable the output line to electrically communicate with a second input line, the first switch is turned on, the voltage adjusting module adjusts the first signal to a second signal and outputs the second signal to the second input line, and the output signal of the output line is equal or close to the second signal.