Display Power System with Pixel Degradation Prediction
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Solution Overview
Problem
Existing power systems for display apparatuses fail to supply power in real time, leading to increased ripple and prolonged response and stabilization times, especially when gray levels change significantly or pixel degradation occurs.
Innovation Solution
A power system that includes an image data analyzer predicting pixel degradation and current demand based on saturation and luminance data, allowing for real-time adjustment of power supply to the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a power system senses current and controls an inductor to supply driving power, then power can be supplied to the display panel, but the power is not supplied in real time causing increased ripple and prolonged response time
Solution Approach 1:
The patent applies preliminary action by predicting the required driving power before it is actually needed. The image data analyzer analyzes incoming image data and predicts pixel degradation and current requirements in advance, allowing the power supply to prepare and adjust output power proactively rather than reactively, thereby achieving real-time power supply capability and reducing response time
Solution Approach 2:
The patent implements feedback through a closed-loop control system where image data is continuously analyzed to monitor display panel conditions, predict degradation trends, and adjust power supply output accordingly. This feedback mechanism enables real-time adaptation to changing display conditions, ensuring power is supplied when needed and reducing ripple and stabilization time
2Adaptability or versatility
If conventional current sensing and inductor control is used, then power supply can be regulated, but ripple increases and response time prolongs when gray levels change severely or pixel degradation occurs
Solution Approach 1:
The system performs preliminary analysis of image data to predict pixel degradation and gray level changes before they occur. By analyzing the incoming image data and predicting the required power adjustments in advance, the power supply can adapt proactively to severe gray level changes and pixel degradation, maintaining stability rather than reacting after disturbances occur
Solution Approach 2:
The patent applies dynamics by making the power supply characteristics adjustable and adaptive rather than fixed. The image data analyzer continuously monitors display conditions and dynamically adjusts power supply parameters in real-time, enabling the system to adapt to varying gray levels, pixel degradation, and other changing conditions while maintaining power supply stability
Data Source
AI summary
A power system for display apparatuses, which may predict in real time the amount of supplied current for displaying an image in a display apparatus, includes an image data analyzer analyzing image data input from the outside to predict a pixel degradation degree of each of pixels included in a display panel and predicting an amount of current supplied to the display panel on the basis of the predicted pixel degradation degree and a power supply supplying the display panel with power corresponding to the predicted amount of supplied current.