Corsair K70 RGB

[cheng96]

Not sure if this is the correct place but :

 

How does the the new Corsair K70 Cherry MX RGB work?

 

As far as I know they showed only one LED per keycap but how is that LED able to produce 16.8 million colors?

 

Honest question..if anyone knows please reply

 

Thanks

[Damikiller37]

It's basically the same switch but with a clear shell on the switch so that the light spreads better and they have a single RGB LED inside of the switch. Apart from that it's just a standard Cherry switch.

 

or more precisely... 

 

The latest MX switch variant is optimized for use with SMD LEDs for the full RGB color spectrum as well as monochromatic designs. Using an optimized, transparent case with a scattering surface lens, CHERRY was able to achieve much more even symbol illumination in the key caps compared to previous solutions.  Due to the special design of the entire system, all 16.7 million RGB colors can also be displayed in high luminosity for the first time. Through the SMD LEDs mounted directly on the circuit board, cost-effective, fully automated production is enabled.

Quote from: http://www.cherry.de/cid/press_1474.htm?rdeLocaleAttr=en&cpssessionid=SID-353D21F4-E485337B&WT.mc_id=

[seiny]

The answer is in the title, RGB - Red Green Blue - This combination can make 16.8 million - Similar to how an LCD screen works

[Guest Kloaked]

That 16.8 million colors has to do with brightness levels and mixture of colors. You're not actually going to get 16.8 million colors.

 

They may be referring to color combinations? Idk.

[Enderman]

1 led has 3 diodes inside that are red, green and blue. It has 24 bit colour depth which means there are 16.8 million combinations. Each colour can be at level 0 to 255. and 256x256x256=16.8million

[GeekySole9354]

It's an RGB led that can mix Red ( R ) Green ( G ) and Blue ( B ) to get up to 16.8 million colours.

[Redliquid]

1 led has 3 diodes inside that are red, green and blue. It has 24 bit colour depth which means there are 16.8 million combinations. Each colour can be at level 0 to 255. and 256x256x256=16.8million

Nailed it.

[Enderman]

That 16.8 million colors has to do with brightness levels and mixture of colors. You're not actually going to get 16.8 million colors.

 

They may be referring to color combinations? Idk.

16.8 million combinations of the 3 colours resulting in 16.8 million distinct colours

[AddonCustoms]

Its an RGB (Red Green Blue) diodes in that one LED those 3 colours can make the 16.8 million colours. Its done by adjusting each individual colour in the diode.

[Redliquid]

Btw i head they were coming out late this month and blue switches come out next month?
Annyone heard annything? since it's only 6 days left of this month

[Glenwing]

All 3 color diodes are underneath the same bulb, so from a quick glance it looks like a single LED.

[Glenwing]

Btw i head they were coming out late this month and blue switches come out next month?

Annyone heard annything? since it's only 6 days left of this month

 

It's been delayed, there's a post in the news section about it.

 

http://linustechtips.com/main/topic/186495-an-update-from-corsair-about-the-rgb-keyboards/

[Redliquid]

It's been delayed, there's a post in the news section about it.

 

http://linustechtips.com/main/topic/186495-an-update-from-corsair-about-the-rgb-keyboards/

Son of a F**k =(

[Heisenbleurgh]

I'm assuming it works like most RGB lit thing and has 3 small diodes per LED bulb, blue, green and red. By increasing/decreasing the amount of each they can blend into pretty much any color. Most "16.8 million colors" RGB devices don't even come close though, as they don't have very smooth transitions between one intensity and the other.

Example: let's assume each color can be incremented by of 5%, that's 20 different levels for each (more than most too), since we're using 3 colors, we calculate the possibilities by 20^3 = 8,000.

Even at increments of 1% you'd get 1 million combinations rather than 16.8.

[Thony]

This could easily be extended until X-mas... hence prety lights on pretty keyboard pretty christmassy

Very sad about the delay..... 6 months working on something that was almost ready in february.... cmooooon man !

[SecretImbecile]

As far as I know they showed only one LED per keycap but how is that LED able to produce 16.8 million colors?

 

This looks like a general LED question. rather than 3 separate LEDs for Red, Green and Blue in order to combine all your desired colors, you can actually buy RGB leds which (I haven't checked but I think it's a safe assumption) have 3 separate LEDs in the same "LED" casing. The through hole versions of these components look like this.

The 4 pin configuration so you can have 3 positives for each colour and a common negative. The Cherry MX RGBs use SMD versions of these LEDs.

 

And because I like tangential nonsense:

I've seen 2 pin RGB leds before, which used an embedded microcontroller to blink different colours (no control except on/off). Presumably you could have a 3-pin version with a data pin for selecting colours, but you're talking added microcontroller cost and LED-specific firmware, probably not a good idea for LED nor keyboard manufacturers.

 

Something I found really quite interesting though, the Green channel on these RGB LEDs generally has a lower resistance than the other two channels. This is almost certainly due to the fact that human eyes are more sensitive to green light.

 

I'm not the only one who finds that fascinating right? right?  :unsure: