Mini LED Screen Red-Pixel Compensation for Temperature Sticking
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Solution Overview
Problem
Mini LED screens driven by Active Matrix experience significant red-light attenuation and color deviation due to temperature changes, leading to uneven brightness and red-cyan interlaced sticking images, which degrade display quality.
Innovation Solution
A screen control method and apparatus that adjusts red-pixel values based on temperature and gray scale to maintain uniform brightness by utilizing temperature sensors and controllers to identify and compensate for temperature variations, establishing a red-pixel compensation amount relationship to eliminate sticking images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If Mini LED screens are driven by Active Matrix, then the screen can be mass-produced and used for large-size displays, but significant red-light attenuation and color deviation occur due to temperature changes
Solution Approach 1:
The patent adjusts the red-pixel drive current parameters based on detected temperature values to compensate for temperature-induced red-light attenuation. By dynamically changing the drive current parameter in response to temperature changes, the system maintains consistent display quality while preserving the mass-producible Active Matrix driving approach
Solution Approach 2:
The system incorporates temperature detection and uses the detected temperature information to adjust red-pixel drive currents. This feedback mechanism allows the system to automatically compensate for temperature effects on red LED brightness, maintaining display quality stability without changing the underlying mass-producible Active Matrix architecture
2Illumination intensity
If temperature increases, then red-light attenuation increases and color deviation occurs, but increasing drive current to compensate may cause overheating
Solution Approach 1:
The patent dynamically adjusts the red-pixel drive current parameter based on temperature detection. When temperature increases causing red-light attenuation, the system increases the drive current within safe limits to compensate for brightness loss, while monitoring temperature to prevent overheating
3Stability of the object's composition
If red-pixel compensation is applied to eliminate sticking images, then display uniformity improves, but system complexity increases due to temperature sensing and control mechanisms
Solution Approach 1:
The patent adjusts red-pixel drive current parameters based on temperature and gray scale information to eliminate sticking images and maintain brightness uniformity. This parameter adjustment approach achieves display uniformity without requiring complex hardware modifications, using software-based compensation algorithms
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
Effectively eliminates sticking images by maintaining uniform red-light brightness across the screen, improving display quality and reducing color deviations caused by temperature fluctuations.
Implementation Method 1
utilizing temperature sensors and controllers to identify and compensate for temperature variations
Implementation Method 2
Mini LED screens driven by Active Matrix experience significant red-light attenuation and color deviation due to temperature changes
Data Source
AI summary
The present disclosure provides a screen control method and apparatus, a display apparatus, a device and a medium, which belongs to the technical field of display screens. The method is applied to a controller of a Mini LED screen, and includes the following steps: acquiring a temperature and a gray scale of the screen; confirming that there is a sticking image on the screen when the temperature exceeds a stable temperature range corresponding to the gray scale; and controlling the screen to adjust the red-pixel value according to the temperature to eliminate the sticking image.