PMIC Output Adjustment from Display Frames for Lower Power
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Solution Overview
Problem
Existing display technologies waste power due to providing fixed voltage or current to display modules, leading to inefficiency as they do not operate in high loading mode all the time.
Innovation Solution
Adjust the output electrical signal of a Power Management Integrated Circuit (PMIC) based on display frame source data, including pixel values, to optimize power supply to screen-related structures such as the screen driver board and level shifter chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the PMIC provides a fixed voltage or current to other structures, then the fixed voltage or current may meet application under heavy loading, but power consumption is wasted when the display screen does not operate in high loading mode
Solution Approach 1:
The patent applies dynamics by transitioning from a static fixed voltage/current supply to a dynamic adjustable supply. The PMIC output electrical signal is adjusted according to display frame source data (pixel values), allowing the power supply to adapt to varying loading conditions. This resolves the contradiction by enabling the system to provide sufficient power during heavy loading while reducing power consumption during light loading operations.
Solution Approach 2:
The patent implements parameter changes by modifying the output electrical signal parameters (voltage or current) of the PMIC based on the pixel values in display frame source data. When pixel values indicate high loading requirements, the PMIC provides higher power; when pixel values indicate low loading requirements, the PMIC reduces power output. This dynamically adjusts the power supply to match actual demand, resolving the contradiction between reliability and energy loss.
2Stability of the object's composition
If the PMIC provides a fixed voltage or current to ensure power requirements under heavy loading, then power supply stability is maintained, but power consumption increases unnecessarily during light loading
Solution Approach 1:
The patent applies dynamics by making the power supply adjustable rather than fixed. The PMIC output is dynamically modified based on display frame source data, allowing the system to maintain stability when needed while reducing energy consumption during light loading. This resolves the contradiction between stability and energy efficiency.
Solution Approach 2:
The patent implements parameter changes by adjusting the PMIC output electrical signal parameters according to the pixel values in display frame source data. This allows the power supply to maintain appropriate stability for display operation while varying the power level to match actual loading requirements, thereby reducing unnecessary energy consumption during light loading periods.
3Loss of energy
If the output electrical signal of the PMIC is adjusted according to display frame source data, then power consumption is reduced, but the complexity of the control system increases
Solution Approach 1:
The patent applies feedback by using display frame source data (pixel values) as feedback information to control the PMIC output electrical signal. The system continuously monitors the pixel values and adjusts the power supply accordingly, creating a closed-loop control system that reduces power consumption while maintaining display quality. This feedback mechanism resolves the contradiction by enabling intelligent power management despite the increased control complexity.
Solution Approach 2:
The patent implements self-service by enabling the display system to automatically adjust its own power consumption based on the actual display content. The pixel values in the display frame source data serve as self-feedback, allowing the system to autonomously optimize power usage without external intervention. This self-service capability reduces power consumption while the control complexity is managed through automated decision-making algorithms.
Data Source
AI summary
Provided in the present disclosure are a method for adjusting an output electrical signal of a power management integrated circuit, and a screen driver board, and an electronic device. The method includes: acquiring display frame source data of frames displayed on a display module, and the display frame source data at least includes a pixel value of each pixel point; adjusting an output electrical signal of a Power Management Integrated Circuit (PMIC) according to the display frame source data. The output electrical signal is used for supplying power for a screen-related structure; and the screen-related structure includes at least one of a screen driver board, a light-emitting structure and a level shifter chip. By means of acquiring the display frame source data of the frames displayed on the display module, and then adjusting the output electrical signal of the PMIC according to the display frame source data, the adaptability of the output electrical signal of the PMIC can be adjusted. Compared with a solution of outputting a fixed electrical signal, power consumption can be reduced.