Transparent Display Luminance Control for Vehicle Visibility

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Solution Overview

Problem

Head-up displays for vehicles struggle to maintain visibility of both displayed information and the view ahead, especially in urban areas with many traffic signs and lights, leading to potential obstruction of the view.

Innovation Solution

A display control device that extracts and adjusts the luminance of specific portions of display information on a transparent display based on color-by-color pixel count to prevent visibility drops while ensuring a clear view outside the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If information is displayed on a transparent display in a vehicle, then the user can visually recognize display information, but the view ahead is obstructed

Engineering Contradiction:

Improvevisibility of display informationVSAvoidobstruction of view ahead

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by adjusting the luminance of different portions of the display information differently. Specifically, it identifies a particular portion (likely the background or less critical areas) and changes only its luminance while maintaining other areas unchanged, thus reducing overall obstruction while preserving essential information visibility

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent changes the luminance parameter of the display information to resolve the contradiction. By adjusting luminance based on color-by-color pixel count analysis, it optimizes the balance between information visibility and view clarity, allowing the display to adapt its brightness characteristics to minimize obstruction

Inventive Principle:

Principle #35Parameter changes

2Illumination intensity

If the luminance of display information is increased to improve visibility, then the display information becomes more visible, but the obstruction of the view ahead increases

Engineering Contradiction:

Improveluminance of display informationVSAvoidobstruction of view ahead

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

Instead of uniformly increasing luminance across the entire display, the patent selectively adjusts luminance of specific portions based on color-by-color pixel count analysis. This localized approach ensures that visibility is improved where necessary while minimizing the increase in overall obstruction

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies partial action by adjusting only the luminance of a particular portion of the display information rather than the entire display. This selective adjustment provides sufficient visibility improvement for critical information while avoiding excessive luminance increase that would worsen view obstruction

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS10304410B2System that displays an image based on a color-by-color pixel count and method thereof

Publication Date: 2019.05.28 FAURECIA CLARION ELECTRONICS CO LTD

AI summary

A drop in visibility of display information is prevented while securing a clear view outside a vehicle. A display information extracting unit is configured to extract a particular portion from display information, which is displayed on a transparent display provided in a vehicle, based on a color-by-color pixel count of the display information. A display information output unit is configured to output to the transparent display the display information in which the particular portion extracted by the display information extracting unit has been changed in luminance.