Display Panel Polarity Inversion Control for Thermal Management
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Solution Overview
Problem
Liquid crystal displays face issues with high power consumption and excessive temperature due to high resolution requirements, leading to potential failure if not managed properly.
Innovation Solution
A control device for a display panel that includes a temperature detection module, sequence controller, and source driver, which detects temperature and adjusts the polarity inversion manner to manage power consumption, switching to lower power modes when temperature exceeds thresholds to prevent overheating and ensure normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high resolution technology is introduced to improve display quality, then display resolution is improved, but power consumption increases and temperature rises
Solution Approach 1:
The patent applies dynamics by making the polarity inversion manner adjustable and switchable based on real-time temperature conditions. The system dynamically transitions between different polarity inversion strategies (frame inversion, column inversion, row inversion, dot inversion) according to temperature thresholds, allowing the display device to adapt its power consumption characteristics to current thermal conditions while maintaining high resolution display capabilities.
Solution Approach 2:
The patent changes the parameter of polarity inversion manner based on temperature parameters. By detecting temperature and switching between different polarity inversion modes (each with different power consumption characteristics), the system adjusts operational parameters to balance display quality and power consumption, resolving the contradiction between high resolution and power usage.
2Measurement precision
If high resolution technology is introduced to improve display quality, then display resolution is improved, but temperature rises excessively
Solution Approach 1:
The patent implements feedback by continuously detecting the temperature of the source driver chip and using this information to control the polarity inversion manner. The temperature detection module provides real-time thermal information to the control logic, which then adjusts the polarity inversion strategy accordingly, creating a closed-loop feedback system that prevents excessive temperature rise while maintaining high resolution display performance.
Solution Approach 2:
The system dynamically adjusts the polarity inversion manner based on real-time temperature conditions. By making the inversion strategy switchable between frame, column, row, and dot inversion modes according to temperature thresholds, the system adapts its thermal characteristics to current operating conditions, preventing excessive temperature rise while preserving high resolution capabilities.
3Temperature
If polarity inversion manner is switched to lower power mode when temperature is high, then temperature is reduced, but display performance may be affected
Solution Approach 1:
The patent applies beforehand cushioning by establishing multiple temperature thresholds (first temperature threshold, second temperature threshold) and corresponding polarity inversion modes before thermal problems occur. The system proactively switches to appropriate inversion modes based on detected temperature levels, preventing thermal issues before they compromise display operation, thus cushioning against potential failures while maintaining reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively maintains the source driver within a normal temperature range, ensuring the display panel operates correctly by adjusting power consumption based on temperature thresholds, thereby reducing the risk of failure.
Implementation Method 1
the temperature detection module employs a thermal resistor to detect the temperature of the chip of the source driver
Data Source
AI summary
The embodiment of the present invention discloses a control device of a display panel and a control method, wherein the control method of the display panel comprises: detecting a temperature of a chip of a source driver of the display panel, and to generate a notification signal according to the temperature; obtaining a temperature of the notification signal, and generating a control signal according to the temperature if the temperature exceeds preset temperature range thresholds; switching a polarity inversion manner of the display panel according to the control signal. The present invention adjusts the power consumption of the display panel by adjusting the polarity inversion manner so that the display panel can work with the proper power consumption. Thus, the chip of the source driver can be ensured to be in the normal work temperature range to guarantee the normal operation of the display panel and decrease of the failure.