Jump to content
Do Not Sell My Personal Information


Lcd Screen In The Speedo


mrmetallica
 Share

Recommended Posts

ive just recieved my larger screen clocks.im going to change all the back light smds to blue ,the lcd screen has a orange card behind it so means even if i put blue leds in they will still be orange.does any one know if the card is available in othe colours or what its called

Link to comment
Share on other sites


No, the orange filter will block the blue wavelength. You won't get any illumination at all.

well on my old clocks that were orange ,i changed leds to blue and the blue lit up the screen but not blue
Link to comment
Share on other sites

Well, if so it can only be because the passband of the filter overlaps the bandwidth of the LEDs a bit but it will still attenuate the light a lot.

"Every time you try to operate one of these weird black controls that are labelled in black on a black background, a little black light lights up black to let you know you've done it" :lol:

Link to comment
Share on other sites

Well, if so it can only be because the passband of the filter overlaps the bandwidth of the LEDs a bit but it will still attenuate the light a lot.

"Every time you try to operate one of these weird black controls that are labelled in black on a black background, a little black light lights up black to let you know you've done it" :lol:

as you seem to know so much about this.do you know what the name is for the card that is on the back of the lcd screen.ive taken it of and its white on the back and orange on the front.when i took the card of you could see right the way through.just clear glass .
Link to comment
Share on other sites

Sorry, no I don't. I just know a bit about optics. Hopefully one of the forum experts will be along shortly to help you out.

When you say 'clear glass' do you mean it's not coloured?

Link to comment
Share on other sites

Sorry, no I don't. I just know a bit about optics. Hopefully one of the forum experts will be along shortly to help you out.

When you say 'clear glass' do you mean it's not coloured?

yeah its just clear glass
Link to comment
Share on other sites

Ok, well in that case LEDs behind where it's clear should show through blue but if there are any orange areas with LEDs behind them they'll get blocked or dimmed.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share




×
×
  • Create New...

Forums


News


Membership