Laser Sensor Frame Through Hole Full Screen Design

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Solution Overview

Problem

The implementation of a full screen on mobile devices is hindered by the need for openings for sensors and antennas, which reduces the screen area ratio and aesthetic appeal.

Innovation Solution

Incorporating a laser sensor aligned with a through hole in the frame of the display panel, allowing signal emission and reception without additional front panel openings, and using a processor to configure power and gain settings based on alignment with the hole for efficient signal transmission and reception.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If additional openings are provided on the front panel for installing sensors, then sensor functionality is achieved, but the screen area ratio is reduced

Engineering Contradiction:
Improvesensor functionalityVSAvoidscreen area ratio
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent merges the sensor opening function with the existing through hole in the frame structure. The laser sensor is installed in the through hole, combining the structural support function of the frame with the sensor mounting function, thereby eliminating the need for separate front panel openings while maintaining sensor functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent relocates the sensor from the traditional front panel position to the frame's through hole, utilizing a different spatial dimension and location. This dimensional shift allows the sensor to function without occupying front panel area, thus preserving the screen area ratio while achieving sensor capability

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

2Area of stationary object

If the laser sensor is aligned with the through hole for signal transmission, then the area ratio of the display is enhanced, but the complexity of configuration increases

Engineering Contradiction:
Improvedisplay area ratioVSAvoidconfiguration complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent implements preliminary alignment configuration during the device assembly stage. The laser sensor is pre-positioned and aligned with the through hole in the frame, and the processor is pre-configured with the appropriate power and gain settings. This preliminary action eliminates the need for complex runtime adjustments while maintaining optimal display area ratio and signal transmission efficiency

Inventive Principle:
Principle #10Preliminary action

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

This configuration enhances the area ratio of the display by eliminating the need for front panel openings, providing a more integrated and aesthetically pleasing design while maintaining effective distance sensing capabilities.

Implementation Method 1

a laser sensor for detecting an obstacle located on a moving route by irradiating a laser beam

Methodology Applied
Scientific EffectLaser beam: Laser

Implementation Method 2

light is transmitted to the sensor via the receiver opening and/or the microphone opening

Methodology Applied
Scientific EffectLight transmission: Light

Implementation Method 3

the light emitted by the emitter E is scattered by the object and is maximally detected by the detector D

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentEP3588242B1Electronic device
Publication Date: 2024.07.31 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3588242B1 patent drawingFigure 1A~1B
  • EP3588242B1 patent drawingFigure 2A~2B
  • EP3588242B1 patent drawingFigure 3~4A

AI summary

Provided is an electronic device, comprising a display panel, comprising a display region and a frame, wherein the frame is provided with a through hole; and a laser sensor, disposed to be aligned with the through hole in a preset state; wherein in the preset state, the laser sensor transmits a first signal to a light-out side of the display panel and receives a second signal through the through hole.