Under-Display Camera Display Panel Gamma Curve Brightness Control
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Solution Overview
Problem
Display panels with under-display cameras experience low brightness and poor visual effects in areas where cameras are installed due to increased transmittance and decreased luminescence, leading to inconsistent display brightness compared to other areas.
Innovation Solution
The method involves performing gray-scale conversion and using different gamma curves to map gray-scale values to display voltages for each area, ensuring balanced display brightness by controlling display voltages in different areas of the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display transmittance is increased for the area where the under-display camera is installed, then the camera operation is ensured, but the display luminescence decreases causing low brightness
Solution Approach 1:
The patent applies different gamma curves to different display areas (first display area with under-display camera and second display area without camera) to achieve locally optimized display quality. By mapping gray-scale values to display voltages using area-specific gamma curves, the system ensures the camera area maintains sufficient brightness while allowing other areas to optimize for overall display performance.
2Reliability
If display transmittance is increased for the area where the under-display camera is installed, then the camera operation is ensured, but the display brightness becomes inconsistent compared to other areas
Solution Approach 1:
The patent implements local quality optimization by applying different gamma curves to different display areas. The first display area (with under-display camera) uses a specific gamma curve optimized for camera compatibility, while the second display area (without camera) uses a different gamma curve optimized for overall display performance. This local differentiation resolves the brightness inconsistency issue while ensuring camera functionality.
Solution Approach 2:
The patent changes the display voltage parameters differently for different display areas by using distinct gamma curves. The gamma curve mapping transforms gray-scale values to area-specific display voltages, allowing the first display area to have different voltage characteristics than the second display area. This parameter differentiation enables each area to maintain optimal brightness characteristics for its specific function.
Data Source
AI summary
A display method, a display panel, a display control device, a storage medium and a product, where the display method includes: performing, according to a display area to which a data to be displayed belongs, a gray-scale conversion on the data to be displayed to obtain a gray-scale value of the data to be displayed; performing mapping on the gray-scale value of the data to be displayed corresponding to the first display area and the gray-scale value of the data to be displayed corresponding to the second display area respectively by using different gamma curves to obtain a first display voltage and a second display voltage; and controlling the first display area and the second display area of the display panel to display according to the first display voltage and the second display voltage.