Display Panel Merging Pixel Driving Circuits to Reduce Cost
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Solution Overview
Problem
Existing display panels require additional pixel driving circuits when extra sub-pixel units are needed, leading to increased costs and complex circuit structures, which affect performance and resolution.
Innovation Solution
A display panel configuration where M pixel driving circuits drive N sub-pixel units, with M < N, allowing multiple sub-pixel units to be driven by a single pixel driving circuit, thereby reducing the number of pixel driving circuits needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If each sub-pixel unit corresponds to one pixel driving circuit, then the driving control is simple, but the number of pixel driving circuits increases with the number of sub-pixel units, increasing cost and circuit complexity
Solution Approach 1:
The patent merges multiple sub-pixel units under a single pixel driving circuit's control. Specifically, one pixel driving circuit is designed to drive multiple sub-pixel units (e.g., 4 sub-pixel units) through shared control lines and signal multiplexing, thereby reducing the total number of pixel driving circuits while maintaining driving control capability.
Solution Approach 2:
The pixel driving circuit is designed with universal functionality to control multiple sub-pixel units. The circuit incorporates multi-functional control transistors and signal routing that enable a single pixel driving circuit to perform the driving function for multiple sub-pixel units, rather than being dedicated to a single sub-pixel unit.
2Manufacturing precision
If additional sub-pixel units are added to meet display requirements, then the display resolution improves, but additional pixel driving circuits are required, increasing cost
Solution Approach 1:
The patent applies merging by combining multiple sub-pixel units under a single pixel driving circuit. This allows the display panel to increase the number of sub-pixel units (improving resolution) without proportionally increasing the number of pixel driving circuits, as each pixel driving circuit can manage multiple sub-pixel units through shared control mechanisms.
Solution Approach 2:
The pixel driving circuit is designed as a universal controller capable of driving multiple sub-pixel units. This multi-functional design enables the system to scale the number of sub-pixel units for higher resolution displays without requiring additional pixel driving circuits for each new sub-pixel unit.
3Device complexity
If the number of pixel driving circuits is reduced, then the cost decreases and pixels per inch improves, but the driving capability must be maintained
Solution Approach 1:
The patent merges the driving capability of multiple pixel driving circuits into a single unified circuit through careful design of control transistors and signal routing. The merged circuit maintains full driving capability by using shared control lines and multiplexing techniques, ensuring that reliability is preserved despite the reduction in the number of pixel driving circuits.
Solution Approach 2:
The reduced number of pixel driving circuits is designed with enhanced universal functionality to compensate for the reduction in quantity. Each remaining pixel driving circuit is capable of driving multiple sub-pixel units with full control capability, maintaining system reliability through multi-functional design.
Data Source
AI summary
Provided are a display panel and a display apparatus. The display panel includes M pixel driving circuits and N sub-pixel units, where M<N, and M and N are each a positive integer. The M pixel driving circuits are configured to drive the N sub-pixel units to emit light. According to the technical solutions, the number of pixel driving circuits is reduced, pixels per inch of the display panel are beneficial to improve, and the display resolution is improved. Moreover, the number of pixel driving circuits does not need to be increased while the number of the sub-pixel units is increased, thereby reducing the cost.