Deformable Screen Edge for Hidden Camera and Full-Display Phones

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Solution Overview

Problem

Existing electronic devices with high screen-to-body ratios face challenges in display effectiveness due to the presence of notches or holes for cameras, which affect image display and require high light transmittance, reducing pixel density and display quality.

Innovation Solution

An electronic device with a deformable display screen that includes a first plane area and a second edge area, where the second area can switch between a flattened and curved state via a deformation drive part, allowing ambient light to be projected onto a camera module for shooting mode and hidden during daily use, thereby increasing display area and enhancing display effect.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a 'notch' display or 'hole' display is used to accommodate the front camera, then the camera can be retained, but the screen display area is reduced and display effect is affected

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

Solution Approach 1:

The edge area of the display screen is designed to be dynamically deformable, switching between flattened and curved states. When flattened, it allows light transmission for camera operation; when curved, it provides additional display area. This dynamic state change resolves the contradiction between camera functionality and display area.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The optical parameters of the edge area are changed by controlling its curvature state. In the flattened state, the edge area has high light transmittance for camera operation; in the curved state, it maintains display functionality. This parameter change enables the edge area to serve dual purposes at different times.

Inventive Principle:
Principle #35Parameter changes

2Area of stationary object

If a pop-up front camera is used to ensure display area, then the full screen is maintained, but the camera activation time is prolonged

Engineering Contradiction:
Improvedisplay areaVSAvoidcamera activation time
Core Design Contradiction:
Area of stationary objectVSLoss of time

Solution Approach 1:

The edge area is pre-positioned in a curved state during normal operation, keeping the camera inactive. When camera function is needed, the edge area quickly transitions to a flattened state, allowing immediate light transmission and camera activation. This preliminary positioning eliminates the need for mechanical pop-up movement, reducing activation time.

Inventive Principle:
Principle #10Preliminary action

3Area of stationary object

If an under-display camera is used to maintain display area and image feedback time, then the camera can be integrated, but the screen requires high light transmittance which reduces display components and affects display effect

Engineering Contradiction:
Improvedisplay areaVSAvoiddisplay image quality
Core Design Contradiction:
Area of stationary objectVSIllumination intensity

Solution Approach 1:

The display screen is divided into different functional areas: the main display area maintains high pixel density and display quality, while the edge area has different optical properties optimized for light transmission when flattened. This local differentiation allows the camera to function without compromising overall display image quality.

Inventive Principle:
Principle #3Local quality

4Adaptability or versatility

If the edge area is kept flattened to allow camera shooting, then the camera can capture images, but the display area is reduced

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

Solution Approach 1:

The edge area dynamically changes its curvature state based on operational requirements. It transitions to a flattened state when camera shooting is needed and returns to a curved state during normal display operation, maximizing display area while maintaining camera functionality when required.

Inventive Principle:
Principle #15Dynamics

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 increases the display area and improves the display effect by allowing the camera module to function without reducing pixel density, making the device thinner and lighter while maintaining effective image capture capabilities.

Implementation Method 1

The deformation drive part drives the second area to switch between a flattened state and a curved state through deformation

Methodology Applied
Scientific EffectDeformation: Deformation

Implementation Method 2

A light-transmitting area is disposed in the second area. In the case that the second area is in the flattened state, ambient light passing through the light-transmitting area is projected onto the camera module

Methodology Applied
Scientific EffectLight transmission: Light

Data Source

PatentUS12055978B2Electronic device, control method thereof and control apparatus thereof
Publication Date: 2024.08.06 VIVO MOBILE COMM CO LTD
  • US12055978B2 patent drawing
  • US12055978B2 patent drawing
  • US12055978B2 patent drawing

AI summary

An electronic device is provided, including a housing, a screen, a deformation drive part, and a camera. The screen and the housing form an inner cavity in which the camera and the deformation drive part are disposed. The deformation drive part drives a second area located at an edge of the screen to switch between a flattened state and a curved state through deformation. When the second area is in the flattened state, the second area is a flat second plane area, and the second plane area is located in the same plane as a first plane area of a first area of the screen. A light-transmitting area is disposed in the second area. In the case that the second area is in the flattened state, ambient light passing through the light-transmitting area is projected onto the camera.