Vehicular Projection System Beam Splitting Module

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Solution Overview

Problem

Current vehicular display technologies, such as TFT-LCD and OLED, face limitations in design flexibility, durability, and cost-effectiveness, particularly in achieving large, curved, and long-lasting screen displays, which restricts the design possibilities for car center consoles and results in monotonous user interfaces.

Innovation Solution

A vehicular projection system comprising a projection apparatus and a beam splitting module that divides an image light beam into multiple partial beams, allowing each projection screen to display distinct images, thereby catering to different viewers' needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional display technologies (TFT-LCD, OLED) are used in vehicles, then mass production and durability are improved, but design flexibility and display variety deteriorate

Engineering Contradiction:
Improvedisplay durabilityVSAvoiddesign flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent uses projection technology to create virtual images on the windshield and dashboard surfaces, copying the display function to these surfaces without requiring physical display panels. This allows flexible display designs while maintaining reliability by using proven projection components

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The projection system serves multiple functions: it can display different images for different drivers, provide navigation information, entertainment content, and vehicle status displays simultaneously on various surfaces, replacing multiple specialized displays with a single universal projection system

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

2Adaptability or versatility

If multiple display functions are integrated on the center console, then functionality is improved, but console complexity and crowding worsen

Engineering Contradiction:
ImprovefunctionalityVSAvoidconsole crowding
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent moves the display interface from the two-dimensional center console surface to the three-dimensional space of the windshield and dashboard surfaces, allowing multiple display functions to be distributed across different spatial planes rather than crowded onto a single console surface

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

Solution Approach 2:

The display functions are extracted from the center console and relocated to the windshield and dashboard areas, separating the display complexity from the control console and creating a cleaner, less crowded center console design

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If a single projection system is used for multiple viewers, then system simplicity is improved, but viewer-specific customization deteriorates

Engineering Contradiction:
Improvesystem simplicityVSAvoidviewer customization
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent divides the projection system into multiple independent projection units, each capable of projecting separate images to different drivers or passengers. This segmentation allows each viewer to have customized display content while maintaining relative system simplicity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the windshield and dashboard receive different image content tailored to specific viewers' needs. The system provides localized display quality for each viewing position, with the left side of the windshield showing navigation for the left driver, while the right side shows entertainment content for the right passenger

Inventive Principle:
Principle #3Local quality

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 effectively projects different images on multiple screens, enhancing user experience and reducing costs by utilizing electronic signals and mechanical beam splitting to maintain image quality and satisfy diverse viewer requirements.

Implementation Method 1

a beam splitting module (120), configured to divide the image light beam into a plurality of partial light beams

Methodology Applied
Scientific EffectBeam splitting: Reflection

Data Source

PatentUS9128357B2Vehicular projection system projecting on multiple screens
Publication Date: 2015.09.08 YOUNG OPTICS
  • US9128357B2 patent drawing
  • US9128357B2 patent drawing
  • US9128357B2 patent drawing

AI summary

A vehicular projection system including a projection apparatus, a beam splitting module, and two projection screens is provided. The projection apparatus provides at least one image light beam. The beam splitting module divides the image light beam into a first image light beam and a second image light beam. The two projection screens receive the first image light beam and the second image light beam respectively. Each of the first image light beam and the second image light beam respectively forms an image on one of the two projection screens corresponding thereto.