New RGB Chip LED for Automotive Interiors Minimizes Color Variations due to Color Mixing

News Source: 

Contributes to accurate color representation in cabin function/status indicators and accent lighting

ROHM has developed an RGB chip LED, SMLVN6RGBFU ideal for automotive interiors, such as function and status indicators in instrument clusters, CID (Center Information Displays) and accent lighting for footwells and door handles.

In recent years, more driver assistance functions (i.e., automatic speed control, vehicle distance/white line detection) have been introduced as vehicles become progressively electronic and sophisticated. As such, the demand for RGB chip LEDs capable of expressing a range of colors to indicate operational status in instrument panels and meter clusters is rising. In addition, there's also an increasing need to create a comfortable and luxurious cabin space with decorative lighting using RGB chip LEDs.

In response, ROHM has developed an RGB chip LED that further minimizes color variation by precisely controlling the luminous characteristics of the RGB elements and improving color mixing through in-house device technology.

Generally, developing RGB chip LEDs that emit light at the specified color requires precise control of the wavelength and brightness of the mounted red, green, and blue (RGB) elements individually and methods to enhance color-mixing capability. ROHM has minimized element color variation over general products by utilizing a vertically integrated production system from the element fabrication stage - one of ROHM's strengths. At the same time, original element color mixing control technology reduces color variations caused by color mixing that tends to occur in RGB chip LEDs, resulting in accurate color expression required in automotive interiors. ROHM also supports detailed color matching tailored to user specifications with the chromaticity simulation system.

As we advance, ROHM will continue to contribute to improving in-vehicle comfort and safety by developing industry-leading products optimized for automotive lighting through a quality-first approach.

Chromaticity Simulation System
The SMLVN6RGBFU sets adjustment coefficients for each chromaticity rank while providing calibration support to bring the color closer to the desired target. This new RGB chip LED and high-accuracy chromaticity simulation allows precise color matching.

Product Lineup


IFP conditions: Pulse Width ≤ 1ms, Duty ≤ 1/20

Application Examples
◇ Indicators for function/status display: Instrument clusters, CID, car audio/navigation, heater control, etc.
◇ Automotive Ambient lighting: footwells, roof, handles, cup holders, etc.

Online Sales Information
Sales Launch Date: June 2023
Distributors: DigiKey, MOUSER and Farnell
The LED will be offered at other online distributors as it becomes available.
Pricing: $4.0/unit (samples, excluding tax)

Terminology
CID (Center Information Display)
It typically comprises of a large LCD embedded in the center of the cockpit. In addition to displaying car navigation and In-Vehicle Infotainment (IVI), its role has expanded to include controlling the Air Conditioner and other vehicle functions in recent years.

Indicators

These are devices that notify the status of various vehicle operations.

RGB Chip LED

An LED that can produce the full range of colors by combining elements for the three primary colors of light: R (Red), G (Green), and B (Blue).


 

TrendForce 2022 Global Automotive LED Product Trend and Regional Market Analysis
Release Date:
1. PDF(123 Pages)- 30 June 2022
2. EXCEL- 30 June 2022 and 31 December 2022
Languages: Traditional Chinese / English

If you would like to know more details , please contact:

Global Contact:
 
ShenZhen:
Grace Li
E-mail :  Graceli@trendforce.com
Tel : +886-2-8978-6488 ext.916
  Perry Wang
E-mail :  Perrywang@trendforce.cn
Tel : +86-755-82838931 ext.6800
Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

For most of history, humans used flames to generate light. Eventually, they discovered that a super-heated metal element in a light bulb could produce useful illumination, only for this technology to be superseded by the LED. One common featur... READ MORE

Violumas, provider of high-power UV LED solutions and inventor of 3-PAD LED technology, is proud to launch the release of new 275nm and 265nm LEDs in mid-power, high-power, and high-density packages. The radiant flux of the new 275nm and 265nm... READ MORE