Field Sequential Display Panel Driving Method for Color and Power Trade-offs
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Solution Overview
Problem
Existing display technologies face challenges in reducing light loss and improving color reproduction, resolution, and power consumption, particularly in field sequential color displays that do not use color filters.
Innovation Solution
A method for driving a display panel that involves using three light sources (red, green, and blue) in specific sub-frames of alternating frames, with synchronized gate signals and data signals to adjacent gate lines, allowing for efficient light transmission and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If field sequential color display without color filter is used, then light loss is reduced and color reproduction is improved, but motion blur and power consumption increase
Solution Approach 1:
The patent implements field sequential color display by periodically activating red, green, and blue light sources in time-division manner across multiple sub-frames. Each light source is turned on during its corresponding sub-frame period and off during other sub-frames, creating periodic light emission patterns that reduce overall power consumption compared to continuous illumination while maintaining color reproduction quality through persistence of vision
Solution Approach 2:
The display frame is segmented into multiple sub-frames, with each sub-frame dedicated to a specific color channel (red, green, or blue). This temporal segmentation allows independent control of each color light source, enabling the display to activate only the necessary light sources during each sub-frame period, thereby reducing total power consumption while eliminating the need for color filters
2Measurement precision
If field sequential color display is used, then resolution is increased and motion blur is reduced, but power consumption increases
Solution Approach 1:
The patent uses periodic activation of light sources across sequentially arranged sub-frames to display different color information. By controlling each light source to emit only during its designated sub-frame period and remaining off during other periods, the system achieves high resolution color display through time-division multiplexing while reducing power consumption compared to simultaneous activation of all light sources
3Illumination intensity
If multiple light sources are used for field sequential color, then color reproduction is enhanced, but device complexity increases
Solution Approach 1:
The patent divides the display frame into sequential sub-frames, with each sub-frame assigned to a specific color light source (red, green, or blue). This temporal segmentation allows the use of multiple light sources for enhanced color reproduction while simplifying the overall system architecture by eliminating the need for color filters and enabling independent control of each light source during its designated sub-frame period
Data Source
AI summary
A method for driving a display panel is provided. The method includes turning on a first light source for generating a first light in a first sub-frame, turning on a second light source for generating a second light in a second sub-frame, turning on a third light source for generating a third light in a third sub-frame, outputting same first gate signals a first gate line and a second gate line adjacent to the first gate line, and outputting one of a first data signal corresponding to the first gate line or a second data signal corresponding to the second gate line to a data line during an active period of the first gate signals. The second frame is consecutive to the first frame.