Integrated Scan and Emission Driver Circuit for Display Panels
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Solution Overview
Problem
Conventional display panel drivers occupy a large area and consume high power due to independently formed scan and emission drivers, which can be inefficient in terms of space and energy usage.
Innovation Solution
A display panel driver with multiple stages that synchronizes scan and emission signals using a single clock signal, first and second power voltages, and switching elements to reduce the number of transistors and capacitors, thereby minimizing space and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If scan driver and emission driver are independently formed, then each driver can be optimized for its specific function, but the area occupied by the driver increases and power consumption increases
Solution Approach 1:
The patent merges the scan driver and emission driver into a single integrated driver circuit that generates both scan signals and emission signals. This integration eliminates the need for separate driver circuits, thereby reducing the overall area occupied by the driver while maintaining the functional optimization of both signal types through dedicated generation modules within the integrated circuit.
2Reliability
If scan driver and emission driver are independently formed, then each driver can operate independently, but the power consumption increases
Solution Approach 1:
The integrated driver circuit combines the power supply and control mechanisms for both scan and emission drivers into a single unified circuit. This allows for shared power management, reducing overall power consumption while maintaining independent operation of the scan and emission signal generation functions through separate control modules within the integrated circuit.
3Ease of manufacture
If independently formed drivers are used, then signal generation is straightforward, but the number of transistors and capacitors increases
Solution Approach 1:
The patent integrates the transistor and capacitor networks for both scan and emission signal generation into a single unified circuit architecture. This merging reduces the total number of discrete components required while maintaining the ability to generate both signal types through dedicated generation modules, thereby simplifying the overall device structure and reducing manufacturing complexity.
Data Source
AI summary
A display panel driver includes a plurality of stages. An N-th stage of the plurality of stages is configured to output a scan signal and an emission signal synchronized with each other based on a first power voltage, a second power voltage, and at least one clock signal. N is a natural number.