Transparent Display Area for Under-Display Camera

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Solution Overview

Problem

In electronic devices with high screen-to-body ratios, the placement of a front-facing camera in a small hole on the display screen results in a non-functional display area, affecting the overall display effect and user experience.

Innovation Solution

The electronic device incorporates a transparent material in the display screen area opposite the front-facing camera, allowing content to be displayed when the camera is not in use, and preventing display in the area when the camera is active, thus maintaining an uninterrupted display and enhancing user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a small hole is created on the display screen to accommodate the front-facing camera, then the camera can be placed on the display screen, but the area at the hole cannot display content, affecting the overall display effect

Engineering Contradiction:
Improvecamera placementVSAvoiddisplay area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The display buffer dynamically switches between two operational modes: when the camera is not started, it sends display signals to both the first display area and the second display area (through the transparent region); when the camera is started, it sends display signals only to the first display area. This dynamic switching resolves the contradiction by adapting the display behavior based on camera usage state.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the transparency parameter of the display screen material in the second display area. By using a transparent material for this specific region, the screen can physically accommodate the camera while still allowing light to pass through, enabling both camera placement and potential display functionality in the same physical space.

Inventive Principle:
Principle #35Parameter changes

2Area of stationary object

If the transparent area displays content when the camera is not in use, then the overall display effect is maintained, but the camera functionality may be compromised when the camera needs to be used

Engineering Contradiction:
Improvedisplay areaVSAvoidcamera functionality
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The display buffer implements dynamic control by detecting the camera's operational state and adjusting its output accordingly. When the camera is started, the buffer stops sending display signals to the second display area, ensuring the camera has unobstructed access to the transparent region. When the camera is not started, the buffer resumes sending display signals, maintaining the display effect. This dynamic adaptation resolves the contradiction between display and camera functionality.

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If the display buffer sends display signals to both display areas continuously, then the display effect is always maintained, but the camera cannot function properly when needed

Engineering Contradiction:
Improvedisplay areaVSAvoidcamera operation
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The system implements feedback control by monitoring the camera's operational state and using this information to control the display buffer's behavior. The display buffer receives feedback about whether the camera is started or not, and adjusts its signal transmission accordingly. This feedback mechanism ensures that the display and camera functions do not conflict, resolving the contradiction between maintaining continuous display and ensuring reliable camera operation.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12289422B2Electronic device
Publication Date: 2025.04.29 HONOR DEVICE CO LTD
  • US12289422B2 patent drawing
  • US12289422B2 patent drawing
  • US12289422B2 patent drawing

AI summary

An electronic device includes a display screen, a camera, and a first display buffer. The display screen includes a first display area and a second display area, and a material of a display screen corresponding to the second display area is a transparent material. The camera is disposed below the display screen and opposite to a second display area. The first display buffer is configured to store a display signal of the first display area and a display signal of the second display area, and send the display signal of the first display area to the first display area. The first display buffer is further configured to determine, based on whether the camera is started, whether to send the display signal of the second display area to the second display area.