Under-Display Camera Lens Integration for Full-Screen Modules

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Solution Overview

Problem

The presence of a front camera in electronic devices reduces the screen display ratio and affects the lightness and thinness of the device, leading to issues like 'front hair-shaped' and 'drop-shaped' screen structures.

Innovation Solution

Integrate the lens module of the camera component into the display component, eliminating external assemblies and fixing structures, and position the lens within the display component's light-transmitting layer to minimize space occupation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the front camera is assembled on the electronic device with traditional external assemblies, then the camera function is implemented, but the screen display ratio is reduced and the device becomes heavier and thicker

Engineering Contradiction:
Improvescreen display ratioVSAvoidcamera assembly structure
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent merges the camera lens module with the display component by integrating the lens directly into the light-transmitting layer of the display. This combination eliminates the need for separate camera assemblies and external fixing structures, allowing the screen to achieve full-screen display while the lens occupies minimal space within the display's existing structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions the lens from a traditional three-dimensional external assembly to a two-dimensional integration within the light-transmitting layer of the display. By positioning the lens in a predetermined region of the light-transmitting layer, the design utilizes the display's existing dimensional space more efficiently, eliminating the need for additional assembly space and reducing overall device thickness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Length of stationary object

If the lens module is integrated into the display component, then the structural size is reduced, but the manufacturing complexity increases

Engineering Contradiction:
Improvedevice thicknessVSAvoidlens integration process
Core Design Contradiction:
Length of stationary objectVSEase of manufacture

Solution Approach 1:

The patent segments the display component into distinct layers, with the light-transmitting layer serving as the integration platform for the lens. By identifying and utilizing the predetermined region within the light-transmitting layer, the design creates a clear structural division that simplifies the integration process while maintaining manufacturing feasibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The light-transmitting layer of the display serves multiple functions: it maintains its primary role in light transmission for display purposes while simultaneously serving as the mounting structure for the camera lens. This multi-functionality eliminates the need for separate camera housing structures, reducing overall device thickness without significantly complicating manufacturing.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Facilitates full-screen display, improves the lightness and thinness of the electronic device by reducing the structural size and assembly space required for the lens module.

Implementation Method 1

the lens of the lens module is disposed in the predetermined region of the light-transmitting layer of the display component

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentEP3816727B1Screen module and electronic device
Publication Date: 2025.09.24 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3816727B1 patent drawingFigure 1~3
  • EP3816727B1 patent drawingFigure 4~7
  • EP3816727B1 patent drawingFigure 8

AI summary

A screen module and an electronic device are provided. The screen module includes a camera component (11) and a display component (12). A lens module (111) of the camera component (11) is integrated in the display component (12), an external assembly and fixing structure such as a lens barrel of the lens module (111) is removed, and lenses of the lens module (111) is disposed in a predetermined region of a light-transmitting layer (121) of the display component (12).