Electrochromic Layer Shields Under-screen Camera
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Solution Overview
Problem
Under-screen camera technology in display screens fails to display images on the entire surface and poses privacy risks due to camera vulnerability, necessitating effective shielding solutions that are compact and integrated.
Innovation Solution
A display screen with a blind via area incorporating an electrochromic layer that can switch between a chromogenic state and a transparent state, allowing the blind via area and camera to be shielded when the photographing function is disabled, while enabling light penetration for photography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera is integrated under the display screen to enable interaction, then the functionality and value of the screen are enhanced, but the display screen fails to display images on the entire surface and privacy risks arise
Solution Approach 1:
The display screen is segmented into a display area and a blind via area. The blind via area is further segmented to accommodate the camera while maintaining display functionality in surrounding regions. This segmentation allows the camera to be integrated without compromising the overall display completeness.
Solution Approach 2:
A shielding layer is introduced as an intermediary component between the camera and the external environment. This shielding layer can be dynamically adjusted to block or allow light passage, thereby protecting privacy when the camera is not in use while maintaining display functionality. The shielding layer acts as a mediator that resolves the conflict between camera integration and privacy security.
2Reliability
If a camera shielding device is externally disposed to protect privacy, then privacy is protected, but the device becomes large and difficult to integrate
Solution Approach 1:
The shielding function is merged with the display screen structure itself. The shielding layer is integrated into the display screen's internal structure, combining the display and shielding functions into a single unified device. This eliminates the need for separate external shielding accessories, reducing device size and simplifying integration while maintaining effective privacy protection.
Solution Approach 2:
The shielding layer is nested within the display screen structure, with the camera positioned in the blind via area and the shielding layer surrounding it. This nested configuration allows the shielding mechanism to be compactly integrated within the display screen's thickness, avoiding external additions and reducing overall device complexity.
3Reliability
If the blind via area is shielded to protect privacy, then privacy is protected and appearance is improved, but light penetration for camera photography may be affected
Solution Approach 1:
The shielding layer is designed to be dynamic rather than static. It can change its optical properties on demand, transitioning from a light-blocking state (for privacy protection) to a light-transmissive state (for camera photography). This dynamic adjustability allows the system to adapt to different operational modes, ensuring both privacy protection and adequate light penetration for the camera when needed.
Solution Approach 2:
The optical parameters of the shielding layer are changed based on operational requirements. When privacy protection is needed, the shielding layer adjusts to block light; when camera photography is needed, the shielding layer adjusts to allow light penetration. This parameter change capability enables the system to resolve the contradiction between privacy protection and light availability for the camera.
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 ensures a sleeker appearance, protects privacy, and maintains light penetration for camera functionality without increasing the display screen's thickness.
Implementation Method 1
an electrochromic material layer disposed on the first electrode layer; wherein the electrochromic material layer comprises: a first electrode layer; an electrochromic material layer, disposed on the first electrode layer; and a second electrode layer, disposed on a side of the electrochromic material layer that is away from the first electrode layer
Data Source
AI summary
The present disclosure provides a display screen and a display device. The display screen includes an electrochromic layer located in a blind via area. The electrochromic layer includes a first electrode layer, an electrochromic material layer, and a second electrode layer stacked in sequence. By means of the display screen and the display device of the present disclosure, the blind via area and an under-screen camera can be shielded when a photographing function is disabled, so that the appearance is sightlier, the privacy is protected, and the lighting of the under-screen camera is not affected when the photographing function is enabled.