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Typical TV backlight LEDs data please ?

Externet

Well-Known Member
Hi.
The LEDs on backlight strips seem to be a typical same for most TV brands. Do you know its part number/data ?
Jump to time stamp 1:30 ---->
 
After digging, seems they are all 1W 3V 0.3A sold in strips of diferent configurations.
 
After digging, seems they are all 1W 3V 0.3A sold in strips of diferent configurations.
You'll need to find the right color LED. The LEDs used for backlights like this are typically tested and "binned" by the exact color profile they emit. A single model LED may have 12 to 36 bins (narrow color ranges or kelvin temperatures and efficiency).

If you put a lower or higher Kelvin temperature LED on a backlight, it is immediately visible as a dull or bright, warm or cool vs the rest of the homogeneous display (most apparent on white images.

You'll be best off changing the entire array if you can. Be careful with the low-cost array strips on aliexpress.com, they are usually factory defects with a mis-binned LED so they already have a wrong color. Or you can simply buy a new display.
 
Also, don't use superglue on clear (acrylic or polycarbonate) lenses. The glue that does not immediately polymerize (harden) will emit vapors for some time and dissolve into the clear plastic to cause a haze. Superglue stays unpolymerized in the presence of oxygen (air) and when two parts are fitted together, air is excluded and immediately bonded. You can use baking soda or even carbonated water to initiate the cure of the surrounding area but it will be difficult to get under the lens.
 
A "Mitre bond" kit type superglue may be suitable for assembly? That is a high viscosity type that comes with an accelerator aerosol.

Apply glue to one part and mist the other with the accelerator - it will cure within seconds of the parts being fitted together.
An extra spray with accelerator will cure any excess adhesive, so it does not spread or mist or haze nearby materials,
 
I've never replaced any such LED's, but from what I've heard you need to fit (or refit) the diffusers to a high degree of accuracy to avoid any unwanted brightness variations on the finished screen.
 

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