Hey guys,
I have a Nokia N9 (which uses an SAMOLED display made by samsung), and there have been some users reporting blotches/lines on their screens when in a pitch black room. I found this forum whilst conducting some research, and signed up after finally discovering what the problem actually is
It seems to be with the technology Samsung is using. According to this website, what you are experiencing is called 'mura'.... lines/spots as a result of an uneven current distribution to the OLEDs.....
Unfortunately as i am a new member, i can't post a link to the website.... but essentially, this company offers a technology that makes sure the mura never appear..... If only Samsung used it!!!!
AMOLED displays have two main layers:
An OLED (organic light-emitting diode) layer that emits light.
A backplane, made of TFT (thin-film transistor) circuits that provide current to the OLEDs, thereby controlling their brightness.
Polysilicon backplanes don’t provide uniform current because of manufacturing non-uniformities. Without IGNIS technology, the TFT circuits will provide different current to the OLEDs, which results in lines, spots, and cloudy areas known as “mura”.
IGNIS AdMo-p™ technology uses a patented TFT pixel circuit and driving scheme to compensate for the non-uniform backplane. So the TFT circuits always provide uniform current to the OLEDs, even though the TFTs themselves aren’t uniform. This means the AMOLED display will always show smooth, mura-free images.
Hopefully this gives everyone a bit of closure; I guess it's a case of finding a phone that has the mura to a lesser extent!
I have a Nokia N9 (which uses an SAMOLED display made by samsung), and there have been some users reporting blotches/lines on their screens when in a pitch black room. I found this forum whilst conducting some research, and signed up after finally discovering what the problem actually is
It seems to be with the technology Samsung is using. According to this website, what you are experiencing is called 'mura'.... lines/spots as a result of an uneven current distribution to the OLEDs.....
Unfortunately as i am a new member, i can't post a link to the website.... but essentially, this company offers a technology that makes sure the mura never appear..... If only Samsung used it!!!!
AMOLED displays have two main layers:
An OLED (organic light-emitting diode) layer that emits light.
A backplane, made of TFT (thin-film transistor) circuits that provide current to the OLEDs, thereby controlling their brightness.
Polysilicon backplanes don’t provide uniform current because of manufacturing non-uniformities. Without IGNIS technology, the TFT circuits will provide different current to the OLEDs, which results in lines, spots, and cloudy areas known as “mura”.
IGNIS AdMo-p™ technology uses a patented TFT pixel circuit and driving scheme to compensate for the non-uniform backplane. So the TFT circuits always provide uniform current to the OLEDs, even though the TFTs themselves aren’t uniform. This means the AMOLED display will always show smooth, mura-free images.
Hopefully this gives everyone a bit of closure; I guess it's a case of finding a phone that has the mura to a lesser extent!