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geekhack Community => Keyboard Keycaps => Topic started by: Art of Payce on Sat, 16 July 2016, 02:45:15

Title: How to mitigate backlight bleed-through on underside of keycaps?
Post by: Art of Payce on Sat, 16 July 2016, 02:45:15: I like Varmilo's mint front-side printed PBTs, but I don't like the blacklight bleed. See video (https://www.youtube.com/watch?v=GApV6WhXWxQ) for reference. I'm thinking about painting the undersides with really fine paint marker. Any ideas?
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: Raenbo on Sat, 16 July 2016, 05:11:24: I've put small pieces of black electrical tape on the underside of the keycap where the LED is located. It still lets the light disperse around the cap, but stops that big blob of light that hits the cap.
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: rowdy on Sat, 16 July 2016, 05:49:21: This (https://geekhack.org/index.php?topic=66567.0) seems quite effective.
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: Art of Payce on Sat, 16 July 2016, 08:01:40: Quote from: Raenbo on Sat, 16 July 2016, 05:11:24
I've put small pieces of black electrical tape on the underside of the keycap where the LED is located. It still lets the light disperse around the cap, but stops that big blob of light that hits the cap.

Not a bad idea for a diffused effect. However...

Quote from: rowdy on Sat, 16 July 2016, 05:49:21
This (https://geekhack.org/index.php?topic=66567.0) seems quite effective.

This is it. I didn't realize such tape existed. Thank you.

Also, your quote is a most elegant justification and conversation piece for my coworkers in the future.
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: rowdy on Sun, 17 July 2016, 02:39:47: Quote from: Art of Payce on Sat, 16 July 2016, 08:01:40
Quote from: rowdy on Sat, 16 July 2016, 05:49:21
This (https://geekhack.org/index.php?topic=66567.0) seems quite effective.

This is it. I didn't realize such tape existed. Thank you.

Also, your quote is a most elegant justification and conversation piece for my coworkers in the future.

A quote from the great (or humble, as he would probably have it) Eiiti Wada himself!

You can read the full interview here: https://www.keychatter.com/2016/01/04/interview-professor-eiiti-wada-creator-of-the-hhkb/
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: zephyr11 on Mon, 18 July 2016, 22:26:45: this is such a good idea! I was wondering if someone found them slightly annoying like I do. I do like them led lights, but it does looks a bit odd when I see the underside of the kecaps more clearly then the lettering on the keycap. :mad:
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: Phenix on Tue, 19 July 2016, 15:18:47: So to sum up:
I just stick aluminium tape into the inside of the caps?
And where can I get that tape!?
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: rowdy on Tue, 19 July 2016, 21:44:49: Quote from: Phenix on Tue, 19 July 2016, 15:18:47
So to sum up:
I just stick aluminium tape into the inside of the caps?
And where can I get that tape!?

The thread I linked suggests the tape is used for ducts and such (https://geekhack.org/index.php?topic=66567.msg1565369#msg1565369) - so maybe an air-conditioning supply business?
Title: Re: How to mitigate backlight bleed-through on underside of keycaps?
Post by: TwitchXL on Sat, 23 July 2016, 14:45:14: Quote from: Raenbo on Sat, 16 July 2016, 05:11:24
I've put small pieces of black electrical tape on the underside of the keycap where the LED is located. It still lets the light disperse around the cap, but stops that big blob of light that hits the cap.

I did the same on a friends boarde Used electrical tape and its perfect