Display Screen Luminance Adjustment for Under-Display Camera Uniformity
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Solution Overview
Problem
Terminal screens with high-light-transmittance display areas exhibit uneven luminance compared to non-high-light-transmittance areas, leading to a poor display effect, especially in low ambient illuminance scenarios.
Innovation Solution
A display screen adjustment method that collects ambient illuminance and adjusts the luminance of high-light-transmittance and non-high-light-transmittance areas using distinct ambient light adaptation adjustment curves to equalize their luminance, ensuring the luminance of the high-light-transmittance areas matches that of the non-high-light-transmittance areas at grayscale 255, thereby improving the display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high-light-transmittance display areas are used to improve light transmittance for camera and optical sensors, then light transmittance is improved, but luminance uniformity deteriorates
Solution Approach 1:
The patent applies local quality by implementing different luminance adjustment strategies for different display areas. High-light-transmittance areas (first display areas) and non-high-light-transmittance areas (second display areas) are treated differently through separate ambient light adaptation adjustment curves, allowing each region to have optimized luminance characteristics suitable for its specific function while maintaining overall uniformity.
Solution Approach 2:
The patent changes the luminance parameter dynamically based on ambient illuminance conditions. By using distinct ambient light adaptation adjustment curves for different display areas, the system adjusts luminance parameters adaptively to compensate for the inherent differences in light transmittance, thereby resolving the luminance uniformity issue while preserving the high light transmittance characteristic.
2Device complexity
If single ambient light adaptation adjustment curve is used to adjust luminance, then device complexity is reduced, but display effect deteriorates in low ambient illuminance
Solution Approach 1:
The patent segments the ambient light adaptation adjustment into multiple distinct curves - a first ambient light adaptation adjustment curve for high-light-transmittance display areas and a second ambient light adaptation adjustment curve for non-high-light-transmittance display areas. This segmentation allows each curve to be optimized for its specific display area type, improving display effect in low ambient illuminance while maintaining manageable device complexity through systematic organization.
Data Source
AI summary
A display screen adjustment method and apparatus, and a device are provided. A display screen includes a first display area and a second display area, a camera component is disposed under the first display area, and light transmittance of the first display area is higher than light transmittance of the second display area. The adjustment method includes: collecting present ambient illuminance on a terminal; and when the ambient illuminance is lower than an ambient illuminance threshold, adjusting, based on a first ambient light adaptation adjustment curve, luminance corresponding to grayscale 255 of the first display area to first luminance, and adjusting, based on a second ambient light adaptation adjustment curve, luminance corresponding to grayscale 255 of the second display area to second luminance, where the first luminance is approximately equal to the second luminance.