Jackie1
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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.
The forum discussion centers on modifying an LED backlight from blue to green for a digital thermometer used in a vehicle. The user initially inquired about using a yellow bulb cover over a blue LED to achieve a green light, but was informed that this would not work due to the narrow spectrum of LEDs. The conversation evolved to discuss replacing the blue LED with a green one, highlighting the need for soldering skills and the correct polarity for installation. Users provided insights on sourcing the appropriate 3mm through-hole green LEDs and cautioned against damaging the diffuser during modification.
PREREQUISITESElectronics hobbyists, DIY enthusiasts, and anyone looking to modify LED backlighting in devices, particularly in automotive applications.
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.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.
What? Who doesn't like green?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.DaveC426913 said:I'm getting more and more curious. Why does it need to be green?
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)