Display Room Mirror System for Enhanced Driver Vision

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Solution Overview

Problem

Conventional vehicle display systems hinder a driver's field of vision by requiring head turns to view side mirrors, leading to delayed responses in lane changes and increased risk during high-speed driving, especially in adverse weather conditions due to water drops, dew condensation, and side window tinting.

Innovation Solution

A display room mirror system equipped with cameras capturing side rear view images and a display module in the room mirror, allowing the driver to maintain forward vision while viewing side and rear images without turning, and an electrochromic mirror for glare control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the driver uses conventional side mirrors to view side rear views, then the driver can see the side rear situations, but the driver must turn his or her head to left and right sides which disturbs safe driving and delays response time

Engineering Contradiction:
Improvesafe drivingVSAvoidhead turning requirement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses cameras to capture images of the side rear views and displays them on a screen within the vehicle's interior mirror system. This creates a visual copy of the side rear environment, allowing the driver to view side rear situations without turning their head, thus maintaining forward vision and improving response time while ensuring safe driving

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces an intermediary system consisting of cameras, image processing units, and display screens that mediate between the side rear environment and the driver's vision. This intermediary system transmits side rear visual information to the driver through the interior mirror display, eliminating the need for direct head turning to view side mirrors

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the driver uses conventional side mirrors in bad weather conditions, then the driver can attempt to see side rear views, but water drops or dew condensation on side windows and side mirrors obstruct the view

Engineering Contradiction:
Improvefield of vision securityVSAvoidwater drops and dew condensation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The camera-based system captures images of the side rear views externally, creating visual copies that are displayed indoors. Since the cameras are positioned to capture images before water drops or condensation form on the interior surfaces, this copying approach allows the driver to view side rear situations clearly even in bad weather conditions where conventional mirrors would be obstructed

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system performs preliminary action by capturing side rear images using cameras positioned externally before water drops or dew condensation can form on the interior mirror surfaces. The captured images are then displayed on the screen, providing clear side rear visibility in advance of weather-related obstructions

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If side window tinting is applied to improve privacy and aesthetics, then the vehicle appearance is enhanced, but the driver cannot clearly recognize things through the side mirror

Engineering Contradiction:
Improveside window functionalityVSAvoidside mirror recognition clarity
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The camera system captures high-quality images of the side rear views and displays them on a screen with sufficient brightness and resolution. This digital copying process overcomes the light limitation imposed by side window tinting, as the displayed images can be sufficiently bright and clear regardless of the tinting level, allowing the driver to clearly recognize objects in side rear views

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The display screen can adjust the brightness and contrast of the displayed images to ensure clear visibility. By controlling the optical properties of the display output, the system compensates for the light reduction caused by side window tinting, maintaining clear recognition capability for the driver

Inventive Principle:
Principle #32Color changes

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 system reduces eye movement and enhances the driver's field of vision by displaying side rear view images through a single room mirror, improving response times and safety, especially in adverse weather conditions.

Implementation Method 1

reflectance of the room mirror is changed using an oxidation and reduction reaction of an electrochromic device depending on the brightness of light by applying an electrochromic mirror to the room mirror

Methodology Applied
Scientific EffectElectrochromic effect: Electrochromism

Implementation Method 2

reflectance of the room mirror is changed using an oxidation and reduction reaction of an electrochromic device depending on the brightness of light

Methodology Applied
Scientific EffectOxidation and reduction reaction: Redox Reactions

Data Source

PatentUS9756291B2Display room mirror system
Publication Date: 2017.09.05 LG INNOTEK CO LTD
  • US9756291B2 patent drawing
  • US9756291B2 patent drawing
  • US9756291B2 patent drawing

AI summary

Provided is a display room mirror system, including a display module that outputs images captured by a first camera and a second camera, so that the driver can secure his or her field of vision for the side rear as well as the rear of a vehicle using only one room mirror disposed in an inner part of the vehicle without confirming the side mirror, thereby effectively reducing moving lines in the driver's field of vision.