AC LED Screen

[particlewave]

Just to clear things up...

It's an LCD, not an LED. LCD stands for liquid crystal display. The "spots" are cavities in the layer of liquid crystal due to losses. In other words, some of the liquid crystal medium has leaked out or air has leaked in, creating little cavities in that layer.

Carry on

[JonD]

Originally Posted by particlewave

Just to clear things up...

It's an LCD, not an LED. LCD stands for liquid crystal display. The "spots" are cavities in the layer of liquid crystal due to losses. In other words, some of the liquid crystal medium has leaked out or air has leaked in, creating little cavities in that layer.

Carry on

Yes oops I know it's LCD slip of the finger and totally 2 different technologies.

Those spots could very well be air bubbles between the layers, on mine it just looked like something had flaked and rubbed off. There definitely wasn't any bleeding. Which actually looks completely different again.

Mike (I think was his name) that supplied me with the replacement kit said that he had never actually seen that before. And he has sold and replaced heaps of those LCD displays.

[JonD]

Ok, so I came home tonight and decided to have a closer look at the Old LCD I replaced. I could see that there was definitely some dark blue film stuck on each side of the glass, (I thought it was more a sepia colour before). The 2 pieces of glass fused together had what I assume maybe some kind of liquid in the middle, therefore the name Liquid Crystal Display.

Bear in mind I haven't researched how liquid crystal displays are made. Anyway, I applied some heat to the Display with a heat gun and the clear spots started to disappear, however the dark blue film started to peel away from the edges of the glass. I peeled the film more (see Pics not great detail).

I cleaned the sticky stuff off the glass and I could clearly see the spots/blotches between the glass. Guess that's either the liquid drying up or something, due to temperature fluctuations and just wear and tear over time.

Thought you all might be interested.