Display Panel Driving Circuit Multiplexer Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The power consumption of display panel driving circuits is high due to large voltage amplitude variations in data signals outputted to sub-pixels of different colors, which are sequentially illuminated through multiplexers like 1:3 or 1:6, resulting in frequent signal inversions and increased energy usage.
Innovation Solution
A method and circuit where data lines in the same data line group corresponding to sub-pixels of the same color continuously input data signals, reducing voltage amplitude variations and power consumption by maintaining a consistent signal flow through a multiplexer connected to every X data lines of the display panel, where X=M*N, with M and N being integers greater than or equal to 2 and 3 respectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sub-pixels of different colors are sequentially illuminated through multiplexers (1:3 or 1:6), then the number of source lines is reduced, but voltage amplitude variations increase and power consumption increases
Solution Approach 1:
The patent segments the data lines into different groups based on the color of sub-pixels they drive. By organizing data lines into color-specific groups and using separate multiplexers for each group, the patent reduces voltage amplitude variations while maintaining reduced source line complexity. This segmentation allows each multiplexer to serve a specific color domain, preventing frequent signal inversions between different colors.
2Device complexity
If sub-pixels of different colors are sequentially illuminated through multiplexers, then the number of source lines is reduced, but signal inversions increase and power consumption increases
Solution Approach 1:
The patent segments the data lines into different groups based on the color of sub-pixels they drive. By organizing data lines into color-specific groups and using separate multiplexers for each group, the patent reduces voltage amplitude variations while maintaining reduced source line complexity. This segmentation allows each multiplexer to serve a specific color domain, preventing frequent signal inversions between different colors.
3Device complexity
If data signal is periodically outputted to each sub-pixel one by one through multiplexer, then the number of source lines is reduced, but voltage amplitude variation increases
Solution Approach 1:
The patent segments the data lines into different groups based on the color of sub-pixels they drive. By organizing data lines into color-specific groups and using separate multiplexers for each group, the patent reduces voltage amplitude variations while maintaining reduced source line complexity. This segmentation allows each multiplexer to serve a specific color domain, preventing frequent signal inversions between different colors.
Data Source
AI summary
Provided are a driving circuit and driving method for a display panel, and a display device. The driving method of a display panel includes that: the display panel includes a base substrate, a plurality of data lines and a plurality of scanlines; the plurality of data lines and the plurality of scanlines intersect to define a plurality of sub-pixels; each of pixel units is formed by adjacent N sub-pixels, a data line group is formed by every X data lines of the plurality of data lines connected to M columns of the pixel units, and the data line group is connected to a data signal output line through a multiplexer; the method further includes: controlling, through the multiplexer, data lines in a same data line group and corresponding to sub-pixels of a same color to continuously input data signals.