Who Made My iPhone Screen? Samsung, LG or BOE by Model and Panel Code

Short answer: every OLED iPhone has a panel from Samsung Display, LG Display or BOE. Apple splits orders between them, so two phones of the same model can have different makers. Settings won't tell you which one you have. The panel's own serial number will. It's stored as raw-panel-serial-number in the phone's diagnostic data, and the first three characters identify the maker (for example G9N = Samsung, GVC = LG, J5V = BOE).

This guide has two parts: which suppliers have been reported for each model, and how to read the code on your own phone.

Suppliers by model (industry reporting)

Apple doesn't publish its suppliers per model. The table below collects what display analysts (UBI Research, Omdia) and trade press (TheElec, Maeil Business) have reported. Use it to see which makers are possible for your model. It can't tell you which one your phone has.

Sources: UBI Research 2023 Small OLED report (sample) for iPhone 12–15; Maeil Business / Omdia and Businesskorea for iPhone 16; TheElec and OLED-Info / UBI for iPhone 17. The iPhone 15 row reflects UBI's pre-launch forecast.

Two numbers show how the mix moves. Omdia measured Samsung's share of iPhone OLED shipments at 71.1% in Q3 2023 and 51.1% in Q3 2024. Over the same period LG rose from 12.2% to 30.3% and BOE from 8% to 15.7%. TheElec also reported in February 2025 that BOE's iPhone 15/16 panels were held up by a quality problem. So within one model, supplier odds change from quarter to quarter.

How to read the panel code on your own iPhone

The panel serial lives in the I/O registry snapshot inside a sysdiagnose archive. You can find it by hand, for free:

1. Trigger a sysdiagnose: press both volume buttons and the side button together for about one second, then release. You'll feel a short vibration. (Full capture guide.)
2. Wait about 10 minutes, then open Settings → Privacy & Security → Analytics & Improvements → Analytics Data. Find the newest file starting with sysdiagnose_ and save it to Files.
3. In Files, tap the archive to unpack it. Open the ioreg folder, then IODeviceTree.txt.
4. Search the file for raw-panel. The value of raw-panel-serial-number is the panel serial. Its first three characters are the code to look up.

Or import the same archive at /lookup/. The report shows the panel vendor with the three-character prefix next to it (for example Samsung · G9N), plus the display serial and cover-glass serial.

Panel prefix codes

Apple doesn't document these prefixes. The mapping below comes from owners comparing results, for example in the MacRumors forum "panel lottery" thread and a Mr. Mad round-up. Treat it as community data, not an Apple spec.

The grade column shows how this site's report labels the prefix: Top, Mainstream or Standard. The labels follow the community rankings above. They aren't a measurement of your screen. Any panel Apple ships passes Apple's qualification, and a "Standard" panel is not a defect.

What the code can and can't tell you

• It names the panel that's in the phone now. If the screen was replaced with another genuine Apple display, you'll see the replacement's code.
• It doesn't prove the screen is original. For that, check Settings → General → About → Parts and Service History (iPhone 11 and later, except iPhone SE). A Genuine, Used, Unknown or Finish Repair label there is Apple's own verdict (Apple: About genuine iPhone displays). See Is my iPhone screen original?
• An aftermarket panel may have no valid code. If raw-panel-serial-number is missing or doesn't match a known prefix, our report shows Unknown. An empty field on a current iOS build is worth investigating, but it isn't proof by itself.
• iOS 26 caveat. Some owners reported the field missing from iOS 26 archives, while others still found it. If yours is missing, re-capture after an update before drawing conclusions.

LCD iPhones (XR, 11, SE)

These models use LCD panels, not OLED. This guide's prefix table covers OLED codes only, and we haven't verified a prefix list for LCD panels. For an LCD model, Parts and Service History (iPhone 11) or a physical inspection is the more reliable check.

FAQ

Is a Samsung screen better than LG or BOE?

Apple qualifies every supplier to the same specification. Owners do debate color tint and uniformity between panels, but those are reports from individual phones, not controlled tests. If your screen looks fine, the maker matters less than whether the part is genuine.

Can I find the screen maker from the serial number or IMEI?

No. Neither the device serial nor the IMEI includes panel information. Only the panel's own serial, in diagnostic data, does.

Does reading the code require a computer?

No. The Files app can unpack the archive and search IODeviceTree.txt on the iPhone itself. Desktop tools such as 3uTools read the same field over USB.