COLOR INDICATOR DEVICE, VEHICLE INTERIOR / EXTERIOR TRIM PART, DASHBOARD LIGHT LAMP, INDICATOR AND VEHICLE WARNING SIGN

DE602019076945T2Active Publication Date: 2025-10-15MITSUBISHI CHEM CORP
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Patent Information

Application Number
DE602019076945
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2019-05-22
Publication Date
2025-10-15
Estimated Expiration
2039-05-22

AI Technical Summary

Technical Problem

Existing color display devices for vehicle interiors and exteriors struggle with visibility issues due to insufficient luminance and designability, particularly when exposed to external illumination, and fail to exhibit achromatic black color when the light source is turned off, making steps and joints visible.

Method used

A color display device comprising a colored light-transmitting base material with a total light transmittance of 18% or less, combined with a light-blocking base material and a light source unit, where the light source is positioned to transmit emission light through the colored base material, ensuring high luminance and achromatic black appearance when the light is off.

Benefits of technology

The solution provides a color display device with excellent designability and high luminance, suitable for large vehicle components, ensuring visibility from a distance and concealing steps and joints when the light is off.

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