Ilaa aad raacdo wada- hadallada teknoolojiyadda caadiga ah ee^{(less mainstream tech conversations)} socda maalmahan, waxaa laga yaabaa inaad seegtay dood dib loo cusbooneysiiyay oo ku saabsan mudnaanta CRT ama shaashadaha tuubbada cathode . ^{(cathode ray tube)}Haa, waxaan ka hadlaynaa 'tube'kii asalka ahaa ee hadda la beddelay laakiin lagu beddelay tignoolajiyada gole fidsan ee kala duwan. 

Rumayso ama ha rumaysan, waxa jira jiil dhan oo dad ah oo laga yaabo in aan weligood arag CRT nolosha dhabta ah! Haddaba maxay tahay sababta dadka ku jira wareegyada tignoolajiyada ay maanta uga hadlayaan tignoolajiyadan hore? Maxaa loo isticmaalaa kormeerayaasha CRT ? Miyaanay tignoolajiyada casriga ahi ka wanaagsanayn? 

Waxaa soo baxday in jawaabta su'aalahaas laga yaabo inay ka sii adag tahay sidaad u malaynayso. Ma jiraan sababo wanaagsan oo lagu doonayo CRT 2019?

Waxay Fiican u Eegaan Xalin Kasta^{(They Look Good at Any Resolution)}

Mid ka mid ah cilladaha ugu waaweyn ee shaashadaha fidsan ayaa ah inay leeyihiin xallin "dhaladeed". Si kale haddii loo dhigo, waxay leeyihiin jaantus go'an oo muuqaal ah oo walxaha sawirka ah. Markaa guddi buuxa oo HD ah ayaa leh 1920 by 1080 pixels. Haddii aad u soo dirto sawir leh xalin hoose guddi noocaas ah, waa in la miisaamaa si piksels badan oo jireed u dhaqmaan sidii hal pixels oo muuqaal ah. 

Maalmihii hore sawirada la miisaamay ee shaashadda LCD waxay u muuqdeen kuwo aad u xun^{(absolutely awful)} , laakiin xalalka is-miidaaminta casriga ah ayaa u muuqda mid weyn. Markaa arrintu wax badan maaha.

Weli, sawirada CRT waxay u muuqdaan kuwo wanaagsan xal kasta. Tani waa sababta oo ah ma jiraan pixels muuqaal ah oo isticmaalaya tignoolajiyadan bandhigga. Sawirka waxaa lagu sawiray gudaha shaashadda iyadoo la adeegsanayo alwaaxyada elektarooniga ah, markaa wax xoqin ah looma baahna. pixels-yadu si fudud ayaa loo sawiray cabbirka ay u baahan yihiin. Markaa xitaa sawirada xallinta yar waxay u muuqdaan kuwo wanaagsan oo siman CRT . 

Waagii hore tani waxay ahayd hab wanaagsan oo lagu helo waxqabadka 3D apps iyo ciyaaraha fiidyaha. Kaliya^(Simply) hoos u dhig xallinta si aad u hesho khibrad fudud. Markii ay soo baxday tignoolajiyada LCD , waxaad u badan tahay inaad soo saarto xallinta waddaniga ah, taas oo macnaheedu yahay in la gooyo geesaha meelaha kale sida texture iyo faahfaahinta iftiinka.

Isticmaalka CRT ee codsiyada 3D-dhamaadka sare waxay la macno tahay inaad gooyn karto xallinta, ilaali nacnaca isha oo aad hesho waxqabad wanaagsan. Iyadoo ku dhawaad ​​aan la arkin wax muuqaal ah marka loo eego samaynta wax la mid ah LCD-ga^(LCD) .

Dhaqdhaqaaq-Bur-la'aan ah^{(Blur-Free Motion)}

Dabaqyada fidsan ee LCD^(LCD) waxay adeegsadaan habka soo-bandhigidda ee loo yaqaan "Sample and hold", halkaasoo fareeshka hadda taagan uu shaashadda ugu sii jiro si qumman ilaa kan xiga uu diyaar yahay. CRT^(CRTs) -yada (iyo shaashadaha balasmaha) waxay isticmaalaan hab garaaca. Jirka ayaa lagu sawiray shaashadda, laakiin isla markiiba wuxuu bilaabaa inuu libdho madaw maadaama fosfooradu ay tamar beelaan.

Iyadoo habka muunada iyo haynta laga yaabo inuu u dhawaaqo mid ka sarreeya, saamaynta garaadka ayaa ah sawirka jahawareerka ee dhaqdhaqaaqa taas oo ay ugu wacan tahay habka aan u aragno dhaqdhaqaaq muuqda. Tusaalaha iyo xajinta kaliya maaha sababta dhaqaaqa aan loo baahnayn ee LCD-yada^(LCDs) , laakiin waa mid weyn. 

Shaashadaha casriga ah ama waxay isticmaalaan nooc ka mid ah "dhaqdhaqaaqa fududaynta", taas oo keenta "saamaynta opera saabuunta" ee laga baqo ama waxay dhex geliyaan fareemo madow inta u dhaxaysa kuwa caadiga ah taas oo keenta dhimista dhalaalka. CRT^(CRTs) -yadu waxay muujin karaan dhaqdhaqaaq fiiqan oo aan lahayn wax dhalaal ah, sidaas darteedna aad ayay u eegi karaan marka dib loo daawado muuqaalka.

Heerarka Madow ee Cajiibka ah^{(Incredible Black Levels)}

Sababtoo ah habka LCD-yadu^(LCDs) u shaqeeyaan, dhab ahaantii waa wax aan macquul ahayn in lagu muujiyo madow dhabta ah ee sawirka. Guddi LCD ah waxa uu ka kooban yahay LCD laftiisa, oo wata pixels midab beddela iyo iftiin dambe. La'aanteed iftiinka dambe, ma arki doontid sawirka. Taasi waa sababta oo ah LCD-yadu^(LCDs) ma bixiyaan wax iftiin ah oo iyaga u gaar ah. 

Dhibaatadu waxay tahay in marka pixel-ku damo si uu u muujiyo madow, ma xannibayo dhammaan iftiinka ka imanaya gadaashiisa. Markaa sida ugu fiican ee aad u heli karto waa nooc ka mid ah codka cawl. Shaashadaha casriga ah ee LCD^{(Modern LCD)} aad ayey uga fiican yihiin magdhowga tan, iyadoo LEDs badan ay si siman u iftiiminayaan guddiga iyo iftiinka dambe ee maxalliga ah, laakiin madowga dhabta ah weli suurtagal maaha.

CRT^(CRTs) -yada dhanka kale waxay soo bandhigi karaan madowga ku dhawaad ​​si fiican ugu mahadsantahay sida ay sawirka ugu sawirto dhabarka shaashadda. Tignoolajiyada casriga^(Modern) ah sida OLED ayaa sidoo kale sameeya, laakiin wali aad ayay qaali ugu yihiin macaamiisha caadiga ah. Plasma sidoo kale aad bay ugu wanagsanayd arrintan, laakiin inta badan waa laga saaray. Markaa hadda 2019 heerka ugu wanaagsan ee madow ayaa weli laga heli karaa CRT^(CRTs) -yada .

Waxoogaa ka kooban Retro ayaa loogu talagalay CRT-yada^{(Some Retro Content Was Designed For CRTs)}

Haddii aad jeceshahay isticmaalka macluumaadka retro, oo ay ku jiraan ciyaarihii hore ee fiidyowga laga soo bilaabo consoles HD ka hor iyo heerka cabbirka 4:3 saamiga muuqaalka, waxa fiican inaad ku daawato CRT .

Ma aha in ku cunista waxyaabahan ku jira gole fidsan oo casri ah ay xun tahay cabir kasta, kaliya maaha waxa abuurayaashu u adeegsanayeen tixraac ahaan. Markaa waxa aad aragto weligood uma dhigmi doonaan ulajeedkooda saxda ah. 

Qaar ka mid ah ciyaaraha fiidyowga ayaa dhab ahaantii ka faa'iideystey quirks CRT si ay u dhaliyaan saameyn sida biyo qulqulaya ama daahfurnaan. Saamayntani ma shaqeeyaan ama uma muuqdaan kuwo qallafsan saqafyada fidsan ee casriga ah. Taasi^(Which) waa sababta CRT^(CRTs) -yadu ay caan uga yihiin loogana raadsan yahay ciyaartoyga dib-^{(retro gamers)} u-dhaca .

Waa maxay sababta aadan u rabin CRT 2019^{(Why You DON’T Want a CRT In 2019)}

In kasta oo ay jiraan siyaabo badan oo CRT^(CRTs) -yadu ay si qumman uga sarreeyaan xitaa bandhigyada guri ee casriga ah ee ugu wanaagsan, waxaa sidoo kale jira liis dheer oo khasaare ah! Ka dib oo dhan, waxaa jirta sabab dunidu ugu guurtay tignoolajiyada bandhigga cusub.

Waxa kale oo muhiim ah in la xasuusto in bandhigyada fidsan ee wakhtiga isbeddelku ay aad uga xun yihiin kuwa maanta, haddana dadku waxay dareemeen faa'iidooyinka LCD-yada^(LCDs) inay isku dheelitiran yihiin heshiis ka wanaagsan.

Shaashadaha CRT^(CRT) waa kuwo aad u weyn, culus, gaajo xoog leh oo aan ku habboonayn wax soo saarka iyo daawashada filimada shaashadda. In kasta oo xaddidaaddooda xallinta aysan ahayn arrin aad u weyn ciyaaraha fiidiyowga, nooc kasta oo shaqo culus ah waxay isu beddeshaa halganka qoraalka xallinta hooseeya iyo la'aanta hantida maguurtada ah ee miiska.

Inkasta oo cabbirkoodu weyn yahay, cabbirrada shaashadda dhabta ah waa kuwo aad u yar marka loo eego muraayadaha fidsan. Dhab ahaantii ma jiro CRT u dhiganta 55" iyo daanyeerka waaweyn ee aan maanta haysano. Inkasta oo tayada muuqaalka iyo faa'iidooyinka dhaqdhaqaaqa ee la taaban karo ay CRT- yadu^(CRTs) ka sarreeyaan xitaa dabaqyada fidsan ee casriga ah ee ugu wanaagsan, kaliya koox yar oo dad ah ayaa diyaar u ah inay la jaanqaadaan liiska dheer ee cilladaha la socda isticmaalka CRT . 

Markaa haddii aad ka fekereyso inaad ku dhex milmo adduunka CRT^(CRTs) -yada , iska hubi inaad ogtahay waxaad gelayso.

Why Would You Want a CRT Monitor In 2019?

Unless you’vе bеen follоwing the less mainstream tech conversations going on these days, you might have missed a renewed discussion on the merits of CRT or cathode ray tube screens. Yes, we’re talking about the original ‘tube’ that has now been all but replaced by various flat panel technologies. 

Believe it or not, there’s an entire generation of people who have probably never seen a CRT in real life! So why are people in tech circles talking about this older technology today? What are CRT monitors used for? Isn’t modern display tech superior? 

It turns out that the answer to those questions might be more complicated than you think. Are there any good reasons to want a CRT in 2019?

They Look Good at Any Resolution

One of the biggest drawbacks of flat panel screens is that they have a “native” resolution. In other words, they have a fixed, physical grid of picture elements. So a full HD panel has 1920 by 1080 pixels. If you send an image with a lower resolution to such a panel, it has to be scaled so that multiple physical pixels act as a single virtual pixel. 

In the early days scaled images on an LCD screen looked absolutely awful, but modern scaling solutions look great. So it’s not much of an issue anymore.

Still, images on a CRT look good at any resolution. This is because there are no physical pixels using this display technology. The image is drawn on the inside of the screen using electron beams, so no scaling is required. The pixels are simply drawn at the size they need to be. So even relatively low resolution images look nice and smooth on a CRT. 

In the past this was a good way to gain performance in 3D apps and video games. Simply lower the resolution to get a smoother experience. With the advent of LCD technology you pretty much had to output at the native resolution, which meant cutting corners in other areas such as texture and lighting detail.

Using a CRT for high-end 3D applications means you can cut the resolution, keep the eye candy and get good performance. With almost no visual hit compared to doing the same thing on an LCD.

Blur-Free Motion

LCD flat panels use a display method known as “sample and hold”, where the current frame stays on screen in a perfectly static way until the next one is ready. CRTs (and plasma screens) use a pulsed method. The frame is drawn on screen, but immediately begins to fade to black as the phosphors lose energy.

While the sample and hold method might sound superior, the perceptual effect is a blurry image in motion thanks to the way we perceive apparent motion. Sample and hold is not the only cause of unwanted motion blur on LCDs, but it’s a big one. 

Modern screens either use some form of “motion smoothing”, which leads to the dreaded “soap opera effect” or they insert black frames between the regular ones which causes brightness reduction. CRTs can show sharp motion with no brightness sacrifice and can therefore look much better when playing back video.

Incredible Black Levels

Due to the way LCDs work, it’s essentially impossible to display true black in an image. An LCD panel consists of the LCD itself, with its array of color-changing pixels and a backlight. Without the backlight, you won’t see the image. That’s because LCDs don’t give off any light of their own. 

The problem is that when a pixel switches off to display black, it doesn’t block all the light coming from behind it. So the best you can get is a sort of grey tone. Modern LCD screens are much better at compensating for this, with multiple LEDs evenly lighting the panel and local backlight dimming, but true blacks are still not possible.

CRTs on the other hand can display blacks almost perfectly thanks to how it draws the picture on the back of the screen. Modern technologies like OLED does nearly as well, but is still far too expensive for mainstream consumers. Plasma was also very good in this regard, but has been largely phased out. So right now in 2019 the best black levels are still to be found in CRTs.

Some Retro Content Was Designed For CRTs

If you like consuming retro content, which includes old video games from before HD consoles and standard 4:3 aspect ratio video content, it may be best to watch them on a CRT.

It’s not that consuming this content on a modern flat panel is bad by any measure, it’s just not what the creators were using as a reference. So what you see will never match their intentions exactly. 

Some video games actually took advantage of CRT quirks to generate effects such as flowing water or transparency. These effects don’t work or look odd on modern flat panels. Which is why CRTs are popular and sought after among retro gamers.

Why You DON’T Want a CRT In 2019

While there are plenty of ways in which CRTs are objectively superior to even the best modern flat panel displays, there’s also a long list of cons! After all, there’s a reason the world moved to newer display technology.

It’s also important to remember that flat panel displays at the time of the shift were far worse than those of today, yet people felt the pros of LCDs were on balance a better deal.

CRT screens are huge, heavy, power-hungry and less suitable for productivity and watching widescreen films. While their resolution limits aren’t a huge issue for video games, any sort of serious work turns into struggle with low resolution text and a lack of desktop real estate.

Despite their large size, actual screen dimensions are tiny relative to flat panels. There certainly isn’t a CRT equivalent of the 55” and larger monsters we have today. Despite the substantial image quality and motion advantages CRTs have over even the best modern flat panels, only a small niche group of people are willing to put up with the long list of drawbacks that come with CRT use. 

So if you’re thinking about dabbling in the world of CRTs, make sure you know what you’re getting into.

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