Under-screen Camera Backplane Light Reflectivity Control
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Solution Overview
Problem
Existing under-screen camera technologies face issues with emission light interference, low lighting, and poor imaging performance due to the light-emitting units in the display panel.
Innovation Solution
A display device comprising a camera, a display panel with a first and second display area, and a backplane with a first and second backplane. The second backplane has a lower light reflectivity than the first backplane, covering at least the second display area, to minimize light interference and improve imaging performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a uniform backplane is used across the entire display panel, then the structure is simple and easy to manufacture, but light from the light-emitting units in the first display area interferes with the camera's imaging performance in the second display area
Solution Approach 1:
The backplane is divided into two distinct regions: a first backplane corresponding to the first display area and a second backplane corresponding to the second display area. This segmentation allows each region to have different optical properties tailored to its specific function, preventing light interference while maintaining manufacturing feasibility through modular construction
Solution Approach 2:
The second backplane is designed with specific local qualities different from the first backplane, including lower light reflectivity and potentially different material composition. This local differentiation ensures that the area adjacent to the camera has optimal optical characteristics to minimize interference, while other areas maintain their original properties
2Strength
If the light reflectivity of the backplane is increased to improve structural support, then the mechanical strength is enhanced, but the light interference on the camera imaging performance worsens
Solution Approach 1:
The second backplane is designed with locally optimized properties: it maintains sufficient mechanical strength through appropriate material selection while simultaneously having reduced light reflectivity. This local quality differentiation allows the camera area to have low reflectivity for improved imaging, while other areas can have higher reflectivity for structural support
Solution Approach 2:
The optical parameters (light reflectivity, light transmittance) of the second backplane are specifically changed compared to the first backplane. By adjusting these parameters, the design achieves both adequate mechanical strength and reduced optical interference, resolving the contradiction between structural requirements and imaging performance
3Object-affected harmful factors
If the second backplane has lower light reflectivity to reduce interference, then the camera imaging performance is improved, but the light transmittance may be affected
Solution Approach 1:
The optical parameters of the second backplane are precisely optimized, balancing light reflectivity and light transmittance. By carefully controlling these parameters, the design achieves low reflectivity to minimize interference while maintaining sufficient transmittance to allow adequate lighting for the camera, resolving the trade-off between these two optical properties
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces the influence of light-emitting units on camera lighting, enhancing imaging performance and display quality during photo-taking or photo-graphing.
Implementation Method 1
the light reflectivity of the second backplane is less than the light reflectivity of the first backplane
Data Source
AI summary
The present invention discloses a display device, comprising: a camera, a display panel and a backplane. The display panel, located on the light incident side of the camera, includes a first display area and a second display area; wherein the second display area is arranged corresponding to the camera. The backplane, located between the camera and the display panel, includes a first backplane and a second backplane; wherein a vertical projection of the second backplane on the display panel covers at least the second display area, and the light reflectivity of the second backplane is less than the light reflectivity of the first backplane.