Under-Display Camera Brightness Compensation
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Solution Overview
Problem
OLED under-display camera technology faces challenges in maintaining consistent display quality between the camera region and other display regions due to reduced sub-pixel areas or cropping, leading to inconsistent overall display.
Innovation Solution
An image display method that calculates compensated brightness values for the under-display camera region and attenuated brightness values for the normal display region based on attribute information, ensuring consistent overall brightness and adjusting sub-pixel brightness according to their arrangement, with a transition region to buffer display changes and hide the camera region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sub-pixel area is reduced in the under-display camera region, then camera functionality is improved, but display brightness and quality deteriorate
Solution Approach 1:
The patent applies local quality by implementing different brightness compensation strategies for different regions of the display. The under-display camera region receives different brightness treatment compared to the normal display region, with specific compensation algorithms applied locally to maintain overall display consistency while enabling camera functionality in specific areas.
Solution Approach 2:
The patent changes brightness parameters dynamically by calculating compensated brightness values for the under-display camera region and attenuated brightness values for the normal display region. This involves adjusting gray values and applying area coefficients to maintain consistent visual appearance despite physical sub-pixel area reductions in the camera region.
2Adaptability or versatility
If sub-pixel area is reduced in the under-display camera region, then camera functionality is improved, but display quality consistency deteriorates
Solution Approach 1:
The patent implements local quality by applying region-specific brightness compensation. The under-display camera region and normal display region are treated differently with customized brightness adjustment algorithms, allowing the system to maintain overall display quality consistency despite local sub-pixel area reductions.
Solution Approach 2:
The patent employs feedback mechanisms by calculating compensated brightness values based on the actual sub-pixel arrangement and area differences. The system continuously adjusts brightness parameters to compensate for the reduced sub-pixel area in the camera region, ensuring visual consistency across the entire display through iterative optimization.
3Stability of the object's composition
If brightness compensation is applied to the under-display camera region, then display consistency is improved, but processing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the display into distinct regions (under-display camera region and normal display region) and applying different brightness compensation strategies to each. This segmentation allows for targeted processing that maintains display consistency while managing computational complexity through region-specific optimization.
Solution Approach 2:
The patent manages processing complexity by focusing parameter changes on specific brightness values and gray levels rather than transforming the entire image data. By adjusting only the necessary brightness parameters in the under-display camera region and applying simple attenuation to the normal display region, the system achieves display consistency with minimal processing overhead.
Data Source
AI summary
An image display method includes: obtaining attribute information of each of sub-pixels in an under-display camera region and in a normal display region; calculating a compensated brightness value of the under-display camera region and an attenuated brightness value of the normal display region according to the attribute information; displaying an image according to the compensated brightness value of the under-display camera region and the attenuated brightness value of the normal display region.