Map Display Scale Switching for In-Vehicle Navigation Layouts

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional in-vehicle navigation systems face issues with visibility deterioration when switching from full-screen to window display modes, as the map area and scale settings are often interlocked, leading to incomplete map display and reduced usability.

Innovation Solution

An information processing device that allows independent scale settings for different display arrangements, such as full-screen and window modes, enabling seamless switching without altering the scale in the second display mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the map scale is interlocked with display arrangement, then the system is simpler to control, but the map visibility and usability deteriorate when switching between display modes

Engineering Contradiction:

Improvesystem control simplicityVSAvoidmap visibility and usability

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The patent divides the scale setting into separate controls for different display arrangements. Instead of a single interlocked scale control, the system provides independent scale adjustment capabilities for full-screen and window display modes, allowing each mode to maintain its optimal scale independently

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts scale settings based on the current display arrangement. When switching between full-screen and window modes, the scale parameter is updated accordingly to maintain appropriate map visibility, rather than using a fixed interlocked scale

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the map area is reduced in window display mode, then the device can display more information or switch to other functions, but the map scale and visibility are compromised

Engineering Contradiction:

Improvedisplay flexibilityVSAvoidmap area and scale information

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent applies different scale characteristics to different display arrangements. In window display mode, the system maintains a specific scale setting that is optimized for the reduced display area, ensuring that map details remain visible and usable despite the smaller overall map area

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system changes the scale parameter according to the display arrangement type. When transitioning to window mode with a smaller map area, the scale parameter is adjusted to compensate for the reduced display space, maintaining adequate map visibility and information density

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260094234A1Information processing device

Publication Date: 2026.04.02 TOYOTA JIDOSHA KK

AI summary

An information processing device capable of displaying a map by any one of a first display arrangement and a second display arrangement in which a display area on a screen of a display device is different. A control unit for executing switching between the first display arrangement and the second display arrangement based on a first operation performed by a user, and changing a scale of the map being displayed based on a second operation performed by the user, wherein the control unit changes a scale in a case where the map is displayed in the first display arrangement when the second operation is performed while the map is being displayed in the first display arrangement, and does not change a scale in a case where the map is displayed in the second display arrangement.