Light Concentrating Plate for Under-screen Camera
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Solution Overview
Problem
Current camera modules in mobile terminals, especially under-screen cameras, face challenges with limited light extraction angles and amounts due to their deeper position, affecting shooting quality.
Innovation Solution
A light-concentrating device with a light-concentrating plate and display screen that uses a plurality of light adjusting units with insoluble conductive and non-conductive liquids, and adjustment electrodes to deflect and incline light, allowing for adjustable deflection angles and improved light concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a camera module is positioned deeper in the screen (under-screen camera), then the screen ratio is improved, but the light extraction angle and light extraction amount are reduced
Solution Approach 1:
A light-concentrating plate is introduced as an intermediary component between the under-screen camera and the external environment. This plate contains multiple light adjusting units that actively manipulate light paths, enabling the deeper-positioned camera to capture sufficient light while maintaining a high screen ratio.
Solution Approach 2:
The light adjusting units incorporate adjustable components (such as liquid crystal elements or movable mirrors) that can dynamically change the light extraction angle and concentration. This allows the system to adapt to different lighting conditions and optimize light capture despite the camera's fixed deep position.
2Area of stationary object
If a camera module is positioned deeper in the screen, then the screen ratio is improved, but the shooting quality is degraded
Solution Approach 1:
The light-concentrating plate with light adjusting units serves as an optical intermediary that compensates for the disadvantages of the deep camera position. By actively concentrating and directing light onto the sensor, it ensures high shooting quality despite the camera being positioned deeper in the screen.
Solution Approach 2:
The system changes optical parameters (light angle, light intensity, light concentration) through the adjustable light adjusting units. This allows optimization of the light reaching the sensor, thereby maintaining high shooting quality regardless of the camera's deep position.
3Illumination intensity
If lenses are used for focusing and light concentration, then light concentration is achieved, but the device structure becomes more complex
Solution Approach 1:
The patent replaces traditional mechanical lens-based light concentration systems with an alternative approach using light adjusting units that may employ liquid crystal, electro-optic, or other non-mechanical methods to achieve light concentration, thereby simplifying the overall device structure.
Solution Approach 2:
The light-concentrating plate with light adjusting units serves multiple functions: it concentrates light, adjusts light angles, and can potentially perform focusing as well. This multi-functionality reduces the need for separate optical components, simplifying the camera module structure while maintaining effective light concentration.
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 enables increased light concentration and focusing, enhancing shooting quality by allowing more light to be captured without the need for openings or holes in the screen, thereby improving image quality and screen ratio.
Implementation Method 1
The voltages may be applied between the first electrode layer and the adjustment electrodes, so that the first light-transmissive liquid can be deflected and inclined in the house, thereby deflecting the light transmitted through the house
Implementation Method 2
The house is filled with insoluble first light-transmissive liquid and second light-transmissive liquid
Data Source
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Figure 7A~8
AI summary
A light-concentrating device (600), a light-concentrating display screen (300), and an electric product (400, 500) are provided. The light-concentrating device (600) includes a light-concentrating plate (100). The light-concentrating plate (100) includes dimming units (10), each dimming unit (10) including a house (11), the house (11) being filled with first light-transmissive liquid (114) and second light-transmissive liquid (115) insoluble with each other. Light may be refracted when passing through the interface between the first light-transmissive liquid (114) and the second light-transmissive liquid (115). Adjustment electrodes (12) are provided on sides of the house (11), and a common electrode layer (13) is provided at an end of the house (11). The voltages may be applied between the common electrode layer (13) and the adjustment electrodes (12) on the sides of the house (11).