Mini LED Backlight Thermal Management via Brightness Feedback
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Solution Overview
Problem
Mini LED backlight displays generate significant heat, leading to elevated temperatures at the display control chip region, which traditional heat dissipation methods poorly manage, resulting in inadequate temperature control and performance.
Innovation Solution
A method that involves acquiring temperature information of the target region around the display control chip, using temperature sensors, and adjusting the brightness of the LED light plate to reduce heat and manage temperature effectively, thereby controlling the temperature and improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If Mini LED backlight display is used to achieve high contrast and improved display quality, then display performance is improved, but heat generation increases leading to poor temperature control
Solution Approach 1:
The patent implements a feedback control mechanism where temperature sensors continuously monitor the temperature of the display control chip, and the system automatically adjusts the brightness of the LED light plate based on the detected temperature. When temperature exceeds a threshold, brightness is reduced to decrease heat generation, creating a closed-loop control system that resolves the contradiction between maintaining high display quality and controlling temperature.
Solution Approach 2:
The system dynamically changes the brightness parameter of the LED light plate based on temperature conditions. By adjusting this key parameter, the system can reduce heat generation when necessary while maintaining optimal display performance when temperature is acceptable, thus resolving the contradiction between display quality and temperature control.
2Illumination intensity
If brightness of LED light plate is increased to improve display visibility, then illumination intensity is improved, but heat generation increases making temperature management difficult
Solution Approach 1:
The patent makes the brightness of the LED light plate dynamic rather than static. The brightness level automatically adjusts based on real-time temperature feedback, allowing the system to maximize illumination when cooling is effective and reduce brightness when heat accumulation occurs, thus resolving the contradiction between visibility and heat management.
Solution Approach 2:
Through the temperature sensing and automatic brightness adjustment mechanism, the system creates a feedback loop that prevents excessive heat generation by reducing brightness when temperature thresholds are exceeded, thereby resolving the contradiction between maintaining high illumination and minimizing energy loss as heat.
3Device complexity
If traditional heat dissipation methods are used, then simple cooling structure is maintained, but temperature control effectiveness is insufficient
Solution Approach 1:
The patent enhances traditional heat dissipation by adding a feedback control mechanism. Instead of relying solely on passive heat dissipation structures, the system actively monitors temperature and automatically adjusts LED brightness to prevent overheating, significantly improving temperature control effectiveness without substantially increasing structural complexity.
Solution Approach 2:
The system implements self-service temperature management where the display control chip itself participates in the cooling process by automatically adjusting its output brightness based on temperature feedback, eliminating the need for complex external cooling systems while achieving effective temperature control.
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
This approach effectively monitors and adjusts the display screen's brightness based on temperature information, reducing heat and enhancing temperature control, thereby improving the device's thermal management and performance.
Implementation Method 1
the temperature sensor, provided around the display control chip, is configured to acquire temperature information of a target region of the display control chip
Implementation Method 2
Mini LED (light-emitting diode), as a frontier technology of backlight display
Implementation Method 3
Mini LED backlight displays generate significant heat
Data Source
AI summary
A method and an apparatus for controlling display screen, and a storage medium are provided. The method includes: acquiring temperature information of a target region of a display control chip, in which the display control chip is configured to control display of a display screen by controlling display of a LED light plate of a display module of an electronic device; adjusting brightness of the display screen of the electronic device according to the temperature information of the target region.