MLA and QD-OLED are two of the most exciting TV technologies around – but which will serve you better?
MLA vs QD-OLED: which TV tech is better? : Read more
MLA vs QD-OLED: which TV tech is better? : Read more
MLA vs QD-OLED: which TV tech is better?
- Thread starter What Hi-Fi?
- Start date
Thurstanh
Member
I think there are a few inaccuracies with the description of OLED tech.
LGs WOLED has two differences.
1. The use of white OLED subpixels with RGB filters as you have mentioned
2. A separate White subpixel aka RGBW
The separate white pixel helps make brighter whites at the cost of colour volume(ie slight washout). Colour Filters are not very efficient or precise lacking the colour purity quantum dots can provide
Samsung QD-OLED
Use blue OLED subpixels with Red and Green Quantum Dots. Unlike filters quantum dots are not to block other wavelengths/colours, they emit light when stimulated by light, their size tuned for a particular frequency be it red or green. This increases the colour volume able to be reproduced due to the purity of RGB.
Problem is blue OLED up til this year have been fluorescent, not phosfluorescent like the red and green on filter-less OLEDs found on phones. It means blue oled’s are less efficient which contributes to their shorter life span. So unless Samsung has switched to the newly released phosfluorescent blue OLED the life span of the screen will be shorter. Incidentally this is why blue sub pixels are generally bigger, work them less hard for equivalent output to extend their lifespan.
Note: you may want to revise thought on LCD/LED tvs as well because I’m fairly certain Samsung uses the same trick of blue LED backlight with Red and Green Quantum Dots the blue coming straight though on their QLED screens
LGs WOLED has two differences.
1. The use of white OLED subpixels with RGB filters as you have mentioned
2. A separate White subpixel aka RGBW
The separate white pixel helps make brighter whites at the cost of colour volume(ie slight washout). Colour Filters are not very efficient or precise lacking the colour purity quantum dots can provide
Samsung QD-OLED
Use blue OLED subpixels with Red and Green Quantum Dots. Unlike filters quantum dots are not to block other wavelengths/colours, they emit light when stimulated by light, their size tuned for a particular frequency be it red or green. This increases the colour volume able to be reproduced due to the purity of RGB.
Problem is blue OLED up til this year have been fluorescent, not phosfluorescent like the red and green on filter-less OLEDs found on phones. It means blue oled’s are less efficient which contributes to their shorter life span. So unless Samsung has switched to the newly released phosfluorescent blue OLED the life span of the screen will be shorter. Incidentally this is why blue sub pixels are generally bigger, work them less hard for equivalent output to extend their lifespan.
Note: you may want to revise thought on LCD/LED tvs as well because I’m fairly certain Samsung uses the same trick of blue LED backlight with Red and Green Quantum Dots the blue coming straight though on their QLED screens
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