News

Samsung’s first OLED Smart TV is now official: we tell you all the secrets of the S95B

Yesterday we brought you some surprising news: the price of the new QD-OLED, the S95B, is significantly lower than we all expected. The Samsung S95B QD-OLED, now simply “OLED” as Samsung calls it -since that terminology has a better market-, It can now be purchased with delivery in April on its own websitein addition to being able to see all the official features and specifications. As we told you yesterday: the Q95B is now officialis finally here.

Samsung’s first OLED Smart TV is now official: we tell you all the secrets of the S95B

Explaining the new features of the Samsung S95B is, in part, explaining again all the new features that the arrival of the QD-OLED technology to the world of Smart TVs. We are going to try to explain it to you again without falling into typical redundancies or being too technical so as not to bore the reader.

The great key to QD-OLEDs is basically in their composition. Instead of using a formula based on swhite ubpixels to emit the light from the rear (Bottom Emission) and which would then go through an RGB filter to generate the color, losing a considerable amount of brightness along the way, as well as producing unwanted problems such as a “washout” of color (due to the use of the white sub-pixel), poorer color coverage and also causing more potential retention by driving the sub-pixel to work harder.

In QD-OLEDs, however, a front light emission (Top Emission), from the part closest to the panel itself, so that all possible light reaches the user (1100 nits at 10%). In addition, by not having a white sub-pixel, the color is not washed out (which happens in LG WOLEDs, only giving 350 nits of color, everything else is pure white), but rather arrives with all the color as pure as possible.

The WOLEDs, on the right, cannot offer more color from 350 nits.

The Samsung S95B ends the degradation of the blue sub-pixel

It seems that, in addition, Samsung is done with the blue sub-pixel degradation issue through the technique of stacking (stack several blue sub-pixels that are “rotated” so that they wear equally).

The idea is simple: stack 3 or 4 blue inorganic diodes in the same “package”, so that they emit light proportionally but without taking them to the limit (25% of their maximum capacity), thus extending their useful life much beyond what was expected, up to figures even above 80 thousand hours. In addition, it has another series of advantages, such as, for example, that it can further improve the brightness or that an anti-reflection filter can be applied, as we will see later. Ah, we forgot that by not working at full power, It also favors the television not being so prone to markings and burned as in a traditional OLED.

Samsung S95B: finally a high-end anti-reflection filter

One of the surprises that this technology has brought and that we now know, as you can see in the photo above, thanks to a Dell monitor owner in Reddit and that Caleb also shared in his analysis of the Sony A95K on Digital TrendsIt was that if we turned on the lights and put on a completely black image…the black on the screen was not black, it was gray. So they don’t emit a pure black?

It has nothing to do with that, in fact we leave you below a photo with the lights off so you can see for yourself that black is still pure black. That perception of gray when there is light is given by the anti-glare filter used by Samsung in its new QD-OLEDs.. A light polarizing filter very similar to the one used by Panasonic in its veteran plasmas.

Photo property of Reddit

This filter is capable of polarizing light and thus prevents us from seeing the large reflections that are seen in LG’s OLED technology.. Samsung can afford to put it in since it has enough brightness when outputting from “front”, while LG can’t put it in their TVs as they are already going through an RGB filter to generate the color and it would be wasting too much brightness to add a second to it for the reflexes.

Image owned by cobra.fr

More brightness, although there are still reservations

Another hot topic is the subject of brightness, measured in nits. We were all surprised at CES to see how there was talk of figures of up to 1500 nits in the new A95K…and the Samsung S95B? well, according to various specialized media such as area-dvd or heise, the Samsung model probably measures a little more brightness than the Sony one, reaching levels of 1100 nits at 10%.

It’s a noticeable improvement over LG’s WRGBs, though keep in mind that brightness measurements aren’t linear. It takes between 4 and 5 times more brightness (nits) to perceive twice the brightness of the image. Remember that in HDR not only the brightness matters, but also the amount of color (Red, Green and Blue, or RGB) that said light is capable of showing. It is not only what shines, but the color that manages to emit said brightness:

Image property of Linus Tech Tips

First defects found: “bleeding” of the red and green pixels

Photo copyright heise.de

As you can see in the photo above, thanks to the colleagues of heise.deWe can already see that all that glitters is not gold. It seems that as a result of a quite peculiar pixel arrangement (diamond-shaped), QD-OLED panels could suffer from a curious defect: in scenes with edges of a uniform color on another background with a uniform color, the line that separates both may appear slightly reddish or greenish in color.

Pixel structure of the Samsung S95B QD-OLED

No one knows for sure to what extent this problem will affect or if there is a solution. It seems that, from the first impressions we have of various media, this problem could be minor and only be seen if one looks closely and is very close to the television, going unnoticed with normal use of the television. We will have to wait until we receive a unit to be able to analyze it and see how far this problem goes.

Related Articles

Leave a Reply

Your email address will not be published.