Search found 7 matches

by trala
Fri Jul 03, 2020 12:58 pm
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 4043

Re: Samsung TV "ultra black" under microscope

I already tried it, it has no influence on it.

But width of aperture is very diffrent as you can see in dimensions. One have around 12 mm and another 24mm.

It seems that angle of light is the biggest problem. Is there some another way how to change it?

Thanks
by trala
Fri Jul 03, 2020 10:58 am
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 4043

Re: Samsung TV "ultra black" under microscope

I am sending you more detailed info about objectives:

worse objective: https://microscopecentral.com/products/ ... -378-825-5

better objective (clear visible): https://www.olympus-ims.com/en/microsco ... ntent11429
by trala
Wed Jul 01, 2020 12:55 pm
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 4043

Re: Samsung TV "ultra black" under microscope

Thank you for reply. Light source we will try to change and I will share result. But how to make true axial illumination?
by trala
Wed Jul 01, 2020 7:15 am
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 4043

Re: Samsung TV "ultra black" under microscope

Ok, I am sharing some settings with you.

Images 12, 16, 22 are for microscope with more settings,there is possible to see structure.

And images 66, 84, 87 are for microscope with setting just for iris and dim light.
by trala
Wed Jul 01, 2020 5:47 am
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 4043

Re: Samsung TV "ultra black" under microscope

Sorry for poor details. We have very poor microscope for this purpose. There is possible to set up just iris and dim light. Here are some details: 1. We know that it is not problem with polarizer, bcz if we have some models with another polarization it is enough to change direction of LCD cell from ...
by trala
Tue Jun 30, 2020 7:12 pm
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 4043

Samsung TV "ultra black" under microscope

Hello, I would like to ask you one question. We have reflective microscope where we can see LCD TFT structure without problem. But there are some TVs where we have problems to see it. Just after iris open is minimum and it is not very good visible. We know that it is not problem of ccd sensor. It mu...