Display Panel Alternating Pixel Charging Sequences
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices face increasing power consumption due to the integration of multiple functions, particularly in the frequent switching of clock signal lines which shortens battery life and reduces standby time.
Innovation Solution
A display panel design that operates in P pixel charging sub-phases with switch group elements switched on in alternating sequences, extending the cycle of enable signals to 2T for the first and last-charged columns, reducing power consumption and increasing battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device integrates multiple functions (display, touch control, force-sensitive control), then the functionality and versatility are improved, but the power consumption increases
Solution Approach 1:
The display panel is divided into multiple pixel units with different pixel types (color pixels and white pixels) arranged in a segmented pattern. This segmentation allows different regions to be driven with different timing sequences, enabling selective charging strategies that reduce overall power consumption while maintaining integrated functionality.
Solution Approach 2:
The patent implements periodic action through alternating first and second pixel charging sequences. In the first sequence, pixel units are charged in one order, while in the second sequence, they are charged in a different order. This periodic alternation between charging sequences extends the cycle of enable signals from T to 2T, reducing the switching frequency and power consumption of clock signal lines.
2Productivity
If clock signal lines are frequently switched to drive pixel units, then the display refresh rate and productivity are improved, but the power consumption increases and battery life decreases
Solution Approach 1:
The patent employs periodic action by alternating between first and second pixel charging sequences across different pixel charging phases. This creates a longer cycle for enable signals (2T instead of T), reducing the switching frequency of clock signal lines while maintaining the display refresh rate, thereby lowering power consumption.
Solution Approach 2:
The patent implements dynamic control by selectively adjusting the charging sequences of different pixel units based on their types (color or white pixels). The driving unit dynamically switches between first and second sequences for different pixel charging sub-phases, optimizing the timing of enable signals to reduce unnecessary switching operations.
3Use of energy by moving object
If the enable signal cycle is extended to 2T for first and last-charged columns, then the power consumption is reduced and battery life is improved, but the complexity of the driving unit increases
Solution Approach 1:
The driving unit is segmented into multiple switch group elements (first, second, third, and fourth switch group elements) that correspond to different pixel units. Each switch group element can be independently controlled with different enable signal timing, allowing the extension of the enable signal cycle to 2T for specific columns while maintaining manageable complexity through modular organization.
Solution Approach 2:
The driving unit employs dynamic control by selectively applying different charging sequences (first sequence for color pixels, second sequence for white pixels) to different pixel units. This dynamic switching between sequences enables the extended 2T cycle for enable signals while managing complexity through systematic timing control rather than arbitrary complexity.
Data Source
AI summary
The present disclosure provides a display panel, a display device and a driving method of a display panel, aiming to lower power consumption of display devices. The display panel operates in P pixel charging sub-phases, and P is a number of rows of pixels. Every two sequential pixel charging sub-phases form one pixel charging phase. In one pixel charging sub-phase of each pixel charging phase, switch group elements of each driving unit are switched on in a first sequence, and in the other pixel charging sub-phase of each pixel charging phase, the switch group elements of each driving unit are switched on in a second sequence. The first sequence and the second sequence are reversed. In the present disclosure, 1≤P, 1≤N, and P and N are positive integers. The above display panel is applicable to display devices.