Phone Screens Explained
Display specs read like alphabet soup, and the names mix physics with marketing. This section separates the two. Each guide below explains one term from neutral sources such as Wikipedia, trade publications and independent lab reports, and uses the makers’ own pages only for their product names and published figures.
Which screen term is which?
Four guides cover the terms you will meet on a spec sheet.
| Term | What it is | Read |
|---|---|---|
| LCD | A backlit screen: liquid crystals control how much of the backlight reaches each pixel, and Wikipedia says they cannot block all of it | LCD explained |
| OLED | A screen where each pixel emits its own light, so an off pixel gives off none, which allows true blacks | OLED explained |
| LTPO OLED | An OLED backplane that mixes two transistor types so the refresh rate can change, from about 1Hz to 120Hz per OLED-Info | LTPO OLED explained |
| Refresh rate | How many times per second the screen redraws, in hertz; adaptive rates change on the fly | Refresh rates explained |
Names such as AMOLED, Super AMOLED and Dynamic AMOLED are OLED variants or maker brands, and they are decoded in the OLED guide. ProMotion and Smooth Display are the makers’ names for adaptive refresh rates, covered in the refresh rates guide.
What do the phones in our library actually use?
Almost all of them use OLED, and most list 120Hz or higher. We counted the display fields on every phone page in the library.
| Screen fact | Phones in our library | Where it comes from |
|---|---|---|
| OLED | 36 of 41 | Maker spec pages, recorded on each phone page |
| LTPO OLED | 4 (Pixel 11 Pro, Pixel 11 Pro XL, Razr 2026, Razr+ 2026) | Labelled only where the maker uses the LTPO term |
| LCD | 1 (Moto G Power 2026) | Motorola spec page |
| Listed maximum 120Hz | 30 | Maker spec pages |
| Listed maximum 165Hz | 2 | Maker spec pages |
| Listed maximum 90Hz | 2 | Maker spec pages |
| No refresh rate listed | 7 (all iPhones) | Apple lists none on the pages we checked |
| Range starting at 1Hz | 10 | Maker spec pages; includes Samsung and Google phones |
| Screen size | 6.1 to 8.0 inches | Most common is 6.7 inches, on 10 phones |
All 17 Apple phones and all 13 Samsung phones in the library are listed as OLED, as are all 5 Google phones and 5 of the 6 Motorola phones. These counts describe the 41 phones we cover, not every phone on sale. Browse the phone library to see each phone’s row.
How do I read a screen line on a spec sheet?
Split it into panel type, brand name and refresh range. Apple’s iPhone 17 specifications list a 6.3-inch all-screen OLED display, branded Super Retina XDR, with ProMotion adaptive refresh rates up to 120Hz. Our Galaxy S26 Ultra page records Samsung’s listing of a 6.9-inch Dynamic AMOLED 2X display with a 120Hz adaptive refresh rate (1 to 120Hz).
| Phrase on the spec sheet | What it tells you |
|---|---|
| OLED, AMOLED | The panel makes its own light |
| Super Retina XDR, Dynamic AMOLED 2X | The maker’s brand name, not a separate technology |
| LTPO | The backplane design that allows a wide variable range |
| Up to 120Hz | The top rate only; the lowest rate is not stated |
| 1 to 120Hz | A variable range, so the screen can slow down to save power |
Are bigger display numbers always better?
No. The sources point to trade-offs, not a single winner. Android Authority says a higher refresh rate costs battery, and that adaptive rates soften the cost. Wikipedia says OLEDs may be more susceptible to burn-in than LCDs, while LCDs give up black level. Brightness and contrast figures on a spec sheet are the maker’s own claims, not independent measurements.
On burn-in, the evidence we found is about TVs. Tom’s Hardware reported that RTINGS found permanent burn-in on every OLED TV in a ten-month test, and uneven brightness on every LCD TV. Phones were not tested, so we make no claim about any phone’s lifespan.
Where should I start?
Start with refresh rates if you want the number you can feel when you scroll, then read OLED for the panel itself. If you are comparing a phone against an older backlit one, read LCD. If a phone page mentions a 1Hz floor, read LTPO OLED. If your screen is cracked, see screen replacement basics.
Related
Browse the phone library or the brand hubs to see which phone uses which screen. For general buying advice, see the guides.