Source Driving Circuit Polarity Segmentation Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing source driving circuits for display panels consume high power due to the need for significant voltage changes across sub-pixels of different polarities and colors, leading to increased power consumption during data transfer.
Innovation Solution
A source driving circuit with multiple driving sub-circuits, where each sub-circuit includes a driver and switches connected to data lines, with sub-pixels of the same polarity and color sharing a source channel, reducing the need for large voltage changes and thus lowering power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If control switches are used to connect one source channel to multiple data lines (1:3 mode or 1:2 mode), then the number of source channels is reduced, but power consumption increases due to significant voltage changes across sub-pixels of different polarities and colors
Solution Approach 1:
The invention segments the data lines into multiple groups, where each group contains data lines connected to sub-pixels of the same polarity and color. Control switches are assigned to each group, allowing independent control. This segmentation enables the source channel to maintain constant voltage output for each group without needing to switch between different voltage levels for different polarities and colors, thereby reducing power consumption while still achieving multi-plexing of source channels.
2Productivity
If sub-pixels of different polarities and colors share a source channel, then the number of source channels is reduced, but large voltage changes are required leading to high power consumption
Solution Approach 1:
The invention applies local quality by assigning different control characteristics to different groups of data lines based on the polarity and color of their connected sub-pixels. Each group receives tailored control signals that maintain appropriate voltage levels for its specific sub-pixel type, rather than using a uniform control approach for all data lines. This localized control quality enables efficient voltage management and reduces energy loss.
Data Source
AI summary
The present disclosure discloses a source driving circuit and a display panel. The source driving circuit includes a plurality of driving sub-circuits, and each of the plurality of driving sub-circuits includes: a driver, including a plurality of source channels; a plurality of switches, first terminals of the plurality of switches are electrically connected to a plurality of data lines of a display panel in one-to-one correspondence, wherein each of the plurality of source channels is electrically connected to second terminals of at least two of the plurality of switches; and a control line, electrically connected to control terminals of the plurality of switches. Sub-pixels corresponding to data lines that are electrically connected to a same source channel through the switches have the same polarity and the same color.