Display Panel Grayscale Tuning for Wider Viewing Angles
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Solution Overview
Problem
Large-size display panels suffer from visual angle defects, leading to display content becoming invisible beyond a critical angle due to deviations in side-viewing and front-viewing gamma curves, resulting in color shift and poor display effects.
Innovation Solution
A method for adjusting grayscales by obtaining initial high and low grayscales, calculating reference brightnesses, setting target grayscale arrangements, selecting binding-point grayscales, and filtering datasets to determine target high and low grayscales that minimize gamma curve deviation, thereby increasing visual angles and improving display effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light transmission mechanism is used in LCD, then the best visual effect is achieved when looking directly at it, but the display screen appears whitening and color washout when viewing angle changes
Solution Approach 1:
The patent applies parameter changes by adjusting grayscale values dynamically based on detected viewing angles. The system modifies display parameters (grayscale levels) to compensate for viewing angle effects, transforming the fixed parameter approach into a variable parameter system that adapts to different viewing conditions.
Solution Approach 2:
The patent implements feedback by using sensors to detect the current viewing angle and using this information to adjust the grayscale values accordingly. The system continuously monitors viewing conditions and provides real-time adjustments to maintain display quality, creating a closed-loop control system.
2Area of stationary object
If large-size display panels are used, then application scenarios are becoming increasingly widespread, but visual angle defects are inevitable and display content becomes invisible beyond critical angle
Solution Approach 1:
The patent uses parameter changes to adjust grayscale values based on viewing angle, allowing large displays to maintain visibility and color accuracy across wider viewing angles. This dynamic parameter adjustment compensates for the inherent limitations of large-size panels.
Solution Approach 2:
The patent introduces dynamics by making grayscale values variable rather than fixed. The system continuously adapts display parameters based on real-time viewing angle detection, transforming a static display system into a dynamic one that responds to changing viewing conditions.
Data Source
AI summary
A method for adjusting grayscales of a display panel and a display panel, wherein firstly obtaining a reference brightness corresponding to each original grayscale according to each original grayscale, then filtering an initial dataset to obtain a preliminary dataset, calculating a weight of a preset brightness according to a front-viewing weight and the reference brightness, and finally selecting a group of grayscale data corresponding to the preset brightness with the smallest weight as a target high grayscale and a target low grayscale. The present disclosure can increase visual angles of the display panel and solve visual angle defects.