Mini-LED Display Panel Brightness Compensation
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Solution Overview
Problem
Liquid crystal display devices using mini-light-emitting diodes face nonuniform display brightness at splicing locations due to spliced backlight sources, affecting display quality.
Innovation Solution
A compensation method for display panels that involves acquiring original image parameters, determining location information, and performing linear interpolation to calculate target compensation values for pixels, ensuring uniform brightness across the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spliced backlight sources are used in liquid crystal display devices with mini-LEDs, then production cost is reduced and panel thinning is achieved, but nonuniform display brightness occurs at splicing locations
Solution Approach 1:
The patent applies local quality by implementing grayscale-specific compensation values for pixels at splicing locations. Different compensation strategies are applied to different grayscale levels (first grayscale vs. second grayscale), allowing the display to maintain uniform brightness across splicing locations while preserving the cost-effective mini-LED backlight structure.
Solution Approach 2:
The patent changes the brightness parameter dynamically based on grayscale levels. By adjusting compensation values according to different grayscale conditions, the system resolves the brightness nonuniformity issue without altering the physical spliced backlight structure, thus maintaining both cost efficiency and display quality.
2Length of moving object
If spliced backlight sources are used in liquid crystal display devices with mini-LEDs, then panel thinning is achieved, but nonuniform display brightness occurs at splicing locations
Solution Approach 1:
The patent applies local quality by implementing grayscale-specific compensation values for pixels at splicing locations. Different compensation strategies are applied to different grayscale levels (first grayscale vs. second grayscale), allowing the display to maintain uniform brightness across splicing locations while preserving the cost-effective mini-LED backlight structure.
Solution Approach 2:
The patent changes the brightness parameter dynamically based on grayscale levels. By adjusting compensation values according to different grayscale conditions, the system resolves the brightness nonuniformity issue without altering the physical spliced backlight structure, thus maintaining both panel thinning and display quality.
3Adaptability or versatility
If spliced backlight sources are used, then mini-LED advantages are utilized, but display quality is affected by nonuniform brightness
Solution Approach 1:
The patent applies local quality by implementing grayscale-specific compensation values for pixels at splicing locations. Different compensation strategies are applied to different grayscale levels (first grayscale vs. second grayscale), allowing the display to maintain uniform brightness across splicing locations while preserving the cost-effective mini-LED backlight structure.
Solution Approach 2:
The patent changes the brightness parameter dynamically based on grayscale levels. By adjusting compensation values according to different grayscale conditions, the system resolves the brightness nonuniformity issue without altering the physical spliced backlight structure, thus maintaining both mini-LED compatibility and display quality.
Data Source
AI summary
A compensation method of a display panel and a compensation device thereof are provided. The compensation method of the display panel includes following steps: determining location information of a pixel to be compensated and acquiring a first image parameter under a first reference grayscale and a second image parameter under a second reference grayscale of a panel to be compensated; determining a target compensation value of the pixel to be compensated under a target grayscale; and determining compensation brightness of the pixel to be compensated under the target grayscale according to the target compensation value.