Display Panel Power Switching for High-Luminance Efficiency
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Solution Overview
Problem
Display devices face increased power consumption due to high voltage application for high luminance image production, leading to inefficiencies.
Innovation Solution
A display device with adaptive power management that includes a power supply capable of switching between modes to supply different driving powers, utilizing pumps and regulators to generate reference powers based on luminance needs, and a gamma voltage generation circuit for precise brightness control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high voltage is applied to components of display devices to enable display panels to produce images with high luminance, then luminance is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic power management by enabling the display device to switch between first and second driving powers based on image luminance requirements. The power supply dynamically adjusts the driving power supplied to the data driving circuit, transitioning between high power mode for high luminance images and low power mode for standard luminance images, thereby optimizing the balance between luminance performance and power consumption.
Solution Approach 2:
The patent changes the operating parameters of the display device by adjusting the driving power level based on image characteristics. The system monitors image luminance requirements and modifies the power supply parameters accordingly, switching between different power levels to match the actual display needs, thus reducing unnecessary power consumption while maintaining required luminance quality.
2Reliability
If driving power is increased to maintain high luminance, then image quality is improved, but unnecessary power consumption increases when high luminance is not required
Solution Approach 1:
The patent implements parameter adjustment by changing the driving power level based on actual image requirements. The system detects when high luminance is needed and adjusts the power supply parameters accordingly, switching between first driving power for high quality display and second driving power for energy efficiency, thus eliminating unnecessary power consumption while maintaining image quality when needed.
Solution Approach 2:
The patent employs feedback mechanisms to monitor image luminance requirements and adjust driving power accordingly. The system continuously evaluates the display needs and provides feedback to the power supply module, which then adjusts the power delivery to match actual requirements, preventing energy waste when high luminance is not necessary while ensuring image quality when it is required.
Data Source
AI summary
A display device includes a display panel including a plurality of data lines, a plurality of scan lines, and a plurality of power lines, a data driving circuit including a data driver configured to output a data signal and a scan driver configured to output a scan signal, and a power supply. The power supply is configured to supply a power voltage to the display panel through the power lines, to supply a first driving power to the data driving circuit in a first mode, and to supply the first driving power and a second driving power to the data driving circuit in a second mode different from the first mode.