Scanning Control Circuit for Local Refresh and Adaptive Display Frequency
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Solution Overview
Problem
High-frequency display on electronic devices leads to high power consumption, which significantly affects battery life, and existing frequency reduction strategies are inflexible, impacting user experience.
Innovation Solution
A scanning control circuit that connects to a gate driving module and transistors in a pixel circuit, allowing for local refresh and adaptive frequency adjustment based on image content, using enable and initial scanning signals to control transistor states for efficient power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency display is performed on the display screen, then display refresh rate is improved, but power consumption increases
Solution Approach 1:
The gate driving module is divided into a scanning control circuit and a driving circuit. The scanning control circuit selectively generates different scanning signal frequencies for different pixel circuits based on local content requirements, allowing high refresh rates only where needed rather than uniformly across the entire display.
Solution Approach 2:
Different pixel circuits are assigned different scanning frequencies according to their local content characteristics. Pixel circuits displaying static or low-change content receive lower frequency scanning signals, while those displaying dynamic content receive higher frequency signals, optimizing power consumption while maintaining display quality.
2Use of energy by moving object
If frequency reduction strategy is applied to reduce power consumption, then power consumption is reduced, but flexibility and user experience deteriorate
Solution Approach 1:
The system dynamically adjusts the scanning frequency for each pixel circuit based on real-time content characteristics and user interaction states. The controller monitors content changes and automatically modifies scanning frequencies, providing adaptive frequency reduction that maintains user experience while optimizing power consumption.
Solution Approach 2:
The system implements feedback mechanisms where the controller continuously monitors display content and pixel circuit states, then adjusts scanning frequencies accordingly. This closed-loop control ensures that frequency reduction does not compromise display quality or user experience.
Data Source
AI summary
A scanning control circuit is connected to a gate driving module and is connected to at least one P-type transistor in a pixel circuit, and the scanning control circuit is configured to receive both an enable control signal and an initial scanning signal from the gate driving module, and output a target scanning signal to the connected P-type transistor according to the enable control signal and the initial scanning signal. In a case where the enable control signal is in a first level state, a level state of the target scanning signal is the same as that of the initial scanning signal. In a case where the enable control signal is in a second level state, the level state of the target scanning signal is a high level state, and the first level state is different from the second level state.