Tiled Display Gray-Scale Compensation for Thermal Image Retention
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Solution Overview
Problem
Micro-LED tiled screens experience visual residual images due to temperature differences causing luminous efficiency decrease, leading to suboptimal display effects.
Innovation Solution
A tiled display system with processors in each module that acquire heat accumulation data, determine target gray-scale compensation data using heat influence coefficients and pre-generated tables to adjust pixel brightness, compensating for temperature effects across regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If Micro-LED tiled screen displays image with certain gray scale for long time, then luminous efficiency decreases due to temperature increase, but visual residual images occur and display quality deteriorates
Solution Approach 1:
The system performs preliminary heat accumulation analysis by examining historical image data before current display. The processor calculates heat accumulation values based on previously displayed images and uses this information to pre-adjust gray scale values, preventing residual images before they occur.
Solution Approach 2:
The system implements a feedback mechanism where the processor continuously monitors heat accumulation data from historical displays and adjusts current gray scale values accordingly. This closed-loop control ensures that temperature-induced luminance variations are compensated in real-time, maintaining display quality.
2Manufacturing precision
If gray scale compensation is applied to eliminate residual images, then display uniformity improves, but processing complexity increases
Solution Approach 1:
The system divides the display into multiple display regions and processes heat accumulation data for each region separately. By segmenting the compensation process, the system can efficiently handle complex thermal variations across different areas without overwhelming the processor.
Solution Approach 2:
The system applies compensation selectively based on calculated heat accumulation values. Rather than uniformly processing all pixels, it focuses compensation efforts on regions where thermal effects are most significant, optimizing processing efficiency while maintaining display uniformity.
Data Source
AI summary
A tiled display screen, a display method, a tiled display system, a computer device, a computer non-transitory readable storage medium are provided. The tiled display screen includes: a plurality of display modules each including a receiver, a processor, and at least one display panel. the processor is configured to acquire heat accumulation data of each display region in the display module; determining target gray-scale compensation data of each pixel according to the heat accumulation data, a heat influence coefficient among different display regions, first gray-scale data of the pixel corresponding to the data to be displayed, and a pre-generated gray-scale compensation table; and compensating a gray scale of the pixel according to the target gray-scale compensation data.