Pixel Driving Circuit View Angle Regulation via Independent Electrode Control
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Solution Overview
Problem
Existing liquid crystal display panels using 8-domain display technology have a limited view angle regulating range, leading to significant color shift issues under large view angles due to the reliance on sub-pixel leakage design for achieving different tilts.
Innovation Solution
A pixel driving circuit and liquid crystal display panel design that includes a main pixel electrode driving module, a sub-pixel electrode driving module, and potential regulation modules to independently regulate the potentials of main and sub-pixel electrodes, enhancing the view angle regulating range by controlling the scan signals and common electrode signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If 8-domain display technology is used to improve color shift under large view angles, then color shift is improved, but the view angle regulating range becomes limited
Solution Approach 1:
The pixel electrode is divided into two independent driving modules: main pixel electrode driving module and sub-pixel electrode driving module. Each module can be independently controlled through separate potential regulation, enabling broader view angle adjustment range while maintaining the 8-domain color shift improvement
Solution Approach 2:
The patent introduces dynamic potential regulation modules that can adjust the potentials of main and sub-pixel electrodes in real-time based on scan signals and common electrode signals. This dynamic control allows the view angle regulating range to be expanded beyond the static limitations of traditional 8-domain display technology
2Ease of manufacture
If sub-pixel leakage design is used to achieve different tilts for main and sub-pixels, then color shift under large view angles is improved, but the view angle regulating range is reduced
Solution Approach 1:
The pixel electrode driving function is segmented into two independent modules with separate potential regulation. The main pixel electrode driving module and sub-pixel electrode driving module can be controlled independently, allowing each to achieve optimal tilt angles for different viewing conditions, thereby expanding the overall view angle regulating range
Solution Approach 2:
The patent changes the control parameters from fixed leakage-based tilt design to dynamically adjustable potential parameters. By regulating the potentials of main and sub-pixel electrodes through separate modules, the system can adaptively adjust tilt angles to maintain optimal performance across a broader view angle range
Data Source
AI summary
The present application provides a pixel driving circuit and a liquid crystal display panel. The pixel driving circuit comprises a main pixel electrode driving module, a sub-pixel electrode driving module, a first potential regulation module, and a second potential regulation module.