Summary of CREE ADDS RGB SURFACE-MOUNT LEDS FOR COLOR DIRECTIONAL SIGNAGE
Cree announced the CV94D-FCC LED, a compact SMD package integrating tightly packed red, green, and blue emitters to enable full-color, self-emissive signs and displays. Targeted at intelligent transportation systems, the RGB SMD can be used in dynamically changeable freeway signage to improve attention and messaging compared with traditional amber monochrome signs. Such LED-based displays are already used in stadiums and urban façades and are increasingly used for dynamic public-information messages like Amber Alerts, road closures, and public-health reminders.
Parts used in the CV94D-FCC LED Project:
- Cree CV94D-FCC RGB surface-mount LED package
- Red emitter (integrated in the CV94D-FCC)
- Green emitter (integrated in the CV94D-FCC)
- Blue emitter (integrated in the CV94D-FCC)
- SMD PCB or board for mounting LEDs
- Driver electronics for LED control
- Sign enclosure and mounting hardware for freeway deployment
- Control system for dynamic messaging
Cree has announced the CV94D-FCC LED that integrates three emitters in a compact surface-mount device (SMD) package. The package includes tightly packed red, green, and blue (RGB) emitters enabling full-color signs or displays based on solid-state lighting (SSL) technology.
Most of the freeway signage has been based on amber monochromatic technology. But signs that are either full color, or even that just have a portion of the display capable of color, can do a better job of grabbing attention and expressing a message.Cree identified the target application as intelligent transportation systems, with a primary example being dynamically changeable signs that are increasingly being suspended above freeways.
We have written quite a lot of late about LED-based, directly- or self-emissive color displays. Self-emissive means the LEDs deliver the video images as opposed to, say, being used for backlights in a liquid-crystal display (LCD). The technology has long been used in applications such as sports stadium video boards and façades at locations such as Times Square in New York. Finer pixel pitch is even bringing the technology indoors.
In the transportation segment, meanwhile, dynamic signs allow cities and states to deliver important information to drivers. In the US, for example, the signs broadcast what are called Amber Alerts when a child is abducted. They also notify drivers of road closures and lately have been used to display coronavirus reminders.
Read more: CREE ADDS RGB SURFACE-MOUNT LEDS FOR COLOR DIRECTIONAL SIGNAGE
- What is the CV94D-FCC LED?
The CV94D-FCC is a Cree RGB surface-mount LED package integrating red, green, and blue emitters for full-color signage and displays. - What applications does Cree target with the CV94D-FCC?
Cree targets intelligent transportation systems, such as dynamically changeable freeway signs suspended above roadways. - How does the CV94D-FCC improve freeway signage?
By enabling full-color or partially color-capable displays, it can better grab attention and express messages compared with amber monochrome signs. - Is the CV94D-FCC meant for self-emissive displays?
Yes, it supports self-emissive LED displays that deliver video images directly rather than acting as LCD backlights. - Where else is self-emissive LED technology used?
Self-emissive LED technology is used in stadium video boards and urban façades like Times Square, and is moving indoors with finer pixel pitch. - What types of messages can dynamic LED freeway signs display?
They can broadcast Amber Alerts, notify drivers of road closures, and display public-health reminders such as coronavirus messages. - Does the CV94D-FCC combine multiple emitters in one package?
Yes, it integrates tightly packed red, green, and blue emitters in a compact SMD package. - Can the CV94D-FCC be used for partial color displays?
Yes, signs that have even a portion capable of color can use the CV94D-FCC to improve messaging and attention.
