Dynamic Gate Line Driving Order for Display Power Reduction
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Solution Overview
Problem
Display devices face challenges in reducing power consumption, particularly in driving source lines of a display panel, as existing methods do not efficiently manage the order of gate line driving based on image data, leading to increased power usage.
Innovation Solution
A display device comprising a display panel and a display driver that controls the order of gate line driving based on first image data, utilizing a dual-gate panel configuration and alternating gate line connections to optimize gate line driving modes, such as 'Z scan' and 'N-drive' modes, to minimize voltage switching and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gate lines are driven in a fixed sequential order, then the display panel can be driven in a simple manner, but power consumption increases due to unnecessary voltage switching
Solution Approach 1:
The patent implements dynamic gate line driving by changing the scanning order based on the actual image data characteristics. Instead of a fixed sequential order, the system dynamically adjusts the gate line driving sequence to match the spatial distribution of image data, thereby reducing unnecessary voltage switching and lowering power consumption while maintaining operational simplicity
Solution Approach 2:
The patent changes the driving parameter (scanning order) based on image data characteristics. By analyzing the spatial distribution of image data and adjusting the gate line driving sequence accordingly, the system optimizes power consumption without compromising the ease of operation. This parameter adaptation allows the system to balance simplicity with energy efficiency
2Reliability
If voltage switching is performed frequently to drive all gate lines, then complete image display is achieved, but power consumption increases
Solution Approach 1:
The patent extracts and utilizes the spatial distribution characteristics of image data to optimize the gate line driving sequence. By analyzing where image data is actually present and concentrating the scanning order around those regions, the system reduces unnecessary voltage switching to gate lines that don't require driving, thereby reducing energy loss while maintaining complete image display
Solution Approach 2:
The patent performs preliminary analysis of image data spatial distribution before determining the gate line driving sequence. This preliminary action allows the system to pre-optimize the scanning order to minimize voltage switching, ensuring that energy is not wasted on unnecessary operations while still achieving complete and accurate image display
Data Source
AI summary
A display device comprises a display panel and a display driver. The display panel comprises a plurality of gate lines. The display driver is configured to control, based on a first image data, an order in which the plurality of gate lines are driven.