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modern tech is better or is it?

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strawberry:
IPS LCD is great on laptops and other professional display
TN probably they rotate viewing angle to more optimal (horizontal/45) to reduce artifacts, for IPS you need to view it in weird angle to see color distortion
for consumer LCD monitors they overdrive backlight to get more brightness/contrast ( reduced LED current by 1/3 and they look more natural)

good CRTs used cathode drive stabilizer for perfect blacks (loading changed flyback voltage?? some feedback sent to video amplifiers to correct that)

modified S7 cooling by replacing better thermal pad directly to CPU/PMIC and some copper tape to spread heat evenly (mod for bootup overheating) (they could have done it in factory)

james_s:

--- Quote from: tooki on October 26, 2022, 06:45:29 am ---Where CRTs do shine, IMHO, is viewing angle. I hate the color shifts that happen with LCD and to a lesser extent with OLED. Plasma (what I still have in my living room) is almost as good as CRT in this regard.)

--- End quote ---

Plasma is fantastic, I wish it was not effectively dead. If somebody made a 19" 4x3 plasma display the arcade collectors would be happy.

Berni:
Yep high quality CRTs can produce some very nice images. But the modern tech has surpassed them.

LCDs have gotten a lot better over the years. The response times are good enough now, they have improved in contrast and now have local dimming, the color reproduction got better, the viewing angles are much better now...etc So while a old CRT still beats a cheap LCD, it has a much tougher fight against a modern high quality LCD.

Plasma i don't really see the benefit these days now that OLED is more mature. Plasma indeed used to be the next step up from CRT by having even better image quality(similar pixels but in perfect geometry). But OLED is the step up from plasma. You get the same sort of contrast, color reproduction and viewing angle as a plasma. Yet at the same time being lighter, thinner, more power efficient, simpler to drive..etc It does still suffer from burn-in like plasma, but modern OLEDs have reduced the issue quite a lot.

Lots of people look back at CRTs with retro rose tinted glasses. Yes they looked absolutely amazing compared to the crappy LCDs we had back then. This is probably what gave people the impression of them being so great. Heck even i stuck with my CRT monitors until they finally died because they looked better than the LCD alternative. Compared to everything else they just looked better. However in all those years display technology has advanced a lot and we don't necessarily notice all the small incremental improvements done to it. But if you try looking at a CRT side by side to a OLED you will see how far we have gotten.

wraper:

--- Quote from: james_s on October 25, 2022, 09:30:07 pm ---Perfect geometry is about the only advantage of LCD other than the weight and bulk, especially early LCD. CRTs still have superior color and contrast ratio even today, OLED is arguably better though.

--- End quote ---
CRT doesn't have a better color compared to wide gamut LCD. OLED and dual layer LCD has better contrast than any CRT. CRT can beat LCD in contrast only in dark, in lighted room contrast of CRT totally sucks. Also you forgot about resolution and possible display size.

tooki:

--- Quote from: tom66 on October 26, 2022, 06:58:06 am ---Modern LCDs have gotten pretty good with viewing angle, even TN.  My Samsung panels have perfect (no colour distortion) viewing angle in the horizontal plane, and only very slight distortion in the vertical plane.

--- End quote ---
They for sure are way better than they used to be. But there is still enough to cause slight visible shifts from edge to edge. I think most people don’t notice, but I do. I strongly suspect it’s not actually so much an issue of the panel itself anymore, but rather of the light-orienting films used behind them. They achieve brightness and efficiency by almost eliminating off-axis (or rather, outside of the defined arc) light.


--- Quote from: tom66 on October 26, 2022, 06:58:06 am ---I've never seen an OLED show colour shift from viewing angle though?

--- End quote ---
I don’t think I’ve noticed it on OLED televisions, but it’s quite pronounced on OLED phones. Really strong cyan shift in one direction. My iPhone SE has an LCD and simply loses brightness at extreme angles. The iPhones (and Samsungs) with OLED get a strong cyan shift. Really annoying to me.

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