Light-Transmitting Screen Frame for Hidden Optical Sensors

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing screen frames with opaque structures for terminals compromise structural stability and manufacturing complexity due to the need for openings to accommodate optical sensors, leading to stress concentration and increased equipment costs.

Innovation Solution

A screen frame with a light-transmitting member that allows light to penetrate while maintaining structural integrity, reducing the number of openings and simplifying the manufacturing process, and incorporating a light-transmitting member that absorbs or reflects light to provide shielding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If openings are provided on the opaque screen frame to accommodate optical sensors, then the optical sensor functionality is maintained, but the structural stability deteriorates due to stress concentration

Engineering Contradiction:
Improveoptical sensor functionalityVSAvoidstructural stability
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The screen frame material transitions from opaque to light-transmitting, changing the optical parameter of the material. This allows the frame to maintain structural integrity without openings while still enabling optical sensor functionality through the light-transmitting property of the material itself

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The openings are completely removed from the screen frame structure. Instead of having discrete openings for optical sensors, the entire frame becomes light-transmitting, extracting the need for openings while maintaining the required functionality

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If openings are provided on the screen frame for optical sensors, then the sensor use is guaranteed, but the device complexity increases due to additional manufacturing requirements

Engineering Contradiction:
Improveoptical sensor functionalityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Changing the material parameter from opaque to light-transmitting simplifies the manufacturing process. Instead of requiring precise opening creation, assembly of multiple components, and potential reinforcement structures, the frame can be manufactured as a single light-transmitting piece, reducing device complexity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The light-transmitting frame material serves multiple functions simultaneously: it provides structural support, enables optical transmission for sensors, and maintains aesthetic appearance. This multi-functionality reduces the need for separate components and simplifies the overall device structure

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

The solution enhances structural stability, simplifies manufacturing, and maintains the functionality of optical sensors while optimizing the appearance and user experience by reducing visible light penetration and enhancing privacy.

Implementation Method 1

the screen frame provided by the embodiment of the present disclosure enables light to penetrate through the light-transmitting member

Methodology Applied
Scientific EffectLight transmission: Light

Implementation Method 2

the light-transmitting member plays a certain shielding role in absorbing or reflecting light

Methodology Applied
Scientific EffectLight absorption: Absorption (EM radiation)

Implementation Method 3

the light-transmitting member plays a certain shielding role in absorbing or reflecting light

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentEP3690599B1Screen frame, display screen module and terminal
Publication Date: 2026.02.11 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3690599B1 patent drawingFigure 1
  • EP3690599B1 patent drawingFigure 2~3
  • EP3690599B1 patent drawingFigure 4~5

AI summary

The present disclosure provides a screen frame (2), a display screen module (3) and a terminal (4), and belongs to the technical field of the terminal. The screen frame (2) is provided with a light-transmitting member (22), and the light-transmitting member (22) absorbs or reflects light, so that a light flux passing through the light-transmitting member (22) is less than a light flux of incident light in the same direction. The screen frame (2) keeps the structural integrity of the screen frame (2) on the premise of realizing the original functions of the screen frame (2) in the related art, thereby optimizing the stability and simplifying the processing technology.