How to change the color of an LED?

  • Context: Undergrad 
  • Thread starter Thread starter Jackie1
  • Start date Start date
  • Tags Tags
    Change Color Led
Click For Summary

Discussion Overview

The discussion revolves around the feasibility of changing the color of an LED in a specific device from blue to green. Participants explore various methods, including using colored bulb covers and replacing the LED itself, while addressing challenges related to the device's design and components.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant inquires whether placing a yellow bulb cover over a blue LED would result in a green light.
  • Another participant suggests that it is unlikely to change the color of the display and recommends looking for a different display with the desired color.
  • Several participants discuss the possibility of replacing the blue LED with a green one, noting the need for soldering skills and correct polarity during installation.
  • Concerns are raised about the difficulty of accessing the LED and whether the LEDs are embedded in the LCD display rather than being discrete components.
  • Participants provide conflicting advice on how to cut the existing LED from the diffuser plate, with one warning against using a nail cutter due to the risk of cracking the plastic.
  • There is a suggestion that the existing LED backlight module could still work with discrete LEDs, but it would involve complications.
  • One participant expresses confusion regarding the manufacturer’s description of the LED placement and the actual configuration upon disassembly.

Areas of Agreement / Disagreement

Participants express differing opinions on the methods for changing the LED color, with no consensus on the best approach. Some believe replacing the LED is feasible, while others question the practicality of the modification.

Contextual Notes

Participants mention various assumptions regarding the LED type and configuration, as well as the potential for complications in modifying the existing setup. The discussion reflects uncertainty about the exact nature of the components involved.

Who May Find This Useful

This discussion may be useful for individuals interested in DIY electronics, LED modifications, or those facing similar challenges with LED color changes in devices.

  • #31
I wish that was a piece of plastic or a filter I could just stick ontop of the blue display to change it to green. I know I'm dreaming.
 
Physics news on Phys.org
  • #32
Jackie1 said:
I wish that was a piece of plastic or a filter I could just stick ontop of the blue display to change it to green. I know I'm dreaming.
Look through a green bottle to make sure that you are only dreaming. If you see a green display then a plastic filter will work. If not, the LEDs in the device are not suitable. But you just have to try.
 
  • #33
I'm getting more and more curious. Why does it need to be green?
 
  • #34
DaveC426913 said:
I'm getting more and more curious. Why does it need to be green?
What? Who doesn't like green? :smile:

I imagine it's to match the other displays in the vehicle.
 
  • #35
DaveC426913 said:
I'm getting more and more curious. Why does it need to be green?
Authenticity, I reckon. Same as the colours of paint used on renovated vehicles. Plus, white / blue are not very restful colours when driving at night. In many ways, green is fave Dave.
 
  • #36
Ah. I was assuming it was a bedside clock.
 
  • #37
trurle said:
I see. This is the "LED backlight module" intended to reduce light losses of LED. It can still work with discrete LED, although with complications. You need to:
1) Cut the existing LED clear from diffusor plate using knife or heavy-duty nail cutter.
2) Either use "right angle" packaged LED, or bend leads of your LED to look sideways into diffusor panel
3) Connect LED lens and diffusor plate with a drop of transparent acrylic or silicone adhesive (recommended)

Well trurle super helped me and I sent my led to him and he fixed it. Yes, I shipped it to him in Japan. No one could do this here in the USA that I could find and if I did it myself it would have been destroyed. Here’s a pic but I will get better ones later. Thank you trurle!

IMG_2648.jpg
 

Attachments

  • IMG_2648.jpg
    IMG_2648.jpg
    31.1 KB · Views: 391
  • IMG_2648.jpg
    IMG_2648.jpg
    31.1 KB · Views: 380
  • IMG_2648.jpg
    IMG_2648.jpg
    31.1 KB · Views: 514
  • Like
Likes   Reactions: Charles Link and berkeman

Similar threads

Undergrad Is This....Right? Splitting LED colors is not working for me
  • · Replies 40 ·
2
Replies
40
Views
4K
Can RGB LED simulate incandescent bulb 'glow'?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Why is there a sharp spike of blue light in my spectrometer readings?
  • · Replies 9 ·
Replies
9
Views
2K
High School Changing the color of an LED bulb
  • · Replies 6 ·
Replies
6
Views
20K
Undergrad Color Theory - What does blue + yellow make?
  • · Replies 21 ·
Replies
21
Views
3K
Making a Binary Clock - Get Answers to Your DIY Questions
  • · Replies 5 ·
Replies
5
Views
2K
High School How do I test for UV light in colored LEDs?
  • · Replies 16 ·
Replies
16
Views
10K
Undergrad Color Theory Equations: Additive Color Mixing & Analytical Luminosity
  • · Replies 23 ·
Replies
23
Views
10K
Undergrad Processes that determine the color of fire
  • · Replies 10 ·
Replies
10
Views
3K
How many batteries are needed to light up this led button?
  • · Replies 4 ·
Replies
4
Views
2K