COMMERCIAL TOUCH DISPLAYS
Advantech POC-421 Point-of-Care Terminal (21.5 in) Screen Protector
The Advantech POC-421 is a commercial touch display with a 21.5" display, 1920x1080 resolution. Commercial and industrial displays run large and non-standard sizes where off-the-shelf protectors rarely exist. Custom cutting to the measured active area is the default sourcing path, ordered in fleet quantity. Screen dimensions are sourced from manufacturer documentation; protector cut dimensions are confirmed with the supplier before production.
Specs last verified 2026-09-05 · every fact links its source below.
Protector availability for this model
First-party protection is uncommon at display sizes; specify the measured screen and quantity and matched suppliers quote custom cuts.
FIRST-PARTY (OEM)
None found
AFTERMARKET
No dedicated protector found
CUSTOM-CUT (VIA RFQ)
Available: matched suppliers cut to this model
Free for buyers. Cut dimensions are confirmed with the supplier before any production run.
Device and display data
| Manufacturer: | Advantech |
|---|---|
| Device family: | POC-4 |
| Display diagonal: | 21.5 insource ↗ |
| Screen width (active): | Unknown |
| Screen height (active): | Unknown |
| Display resolution: | 1920x1080source ↗ |
| Touch input: | projected capacitive (10-point multi-touch P-CAP, clear glass; AG option)source ↗ |
| Screen type: | Unknown |
| Brightness: | Unknown |
| Screen surface (device): | Unknown |
| Screens on device: | Unknown |
| Rounded corners: | Unknown |
| Aspect ratio (derived): | Unknown |
| Pixel density (derived): | 102 PPI |
| Device width (housing): | Unknown |
| Device height (housing): | Unknown |
| Device depth (housing): | Unknown |
| IP rating (device): | Unknown |
| Weight: | Unknown |
| Cut dimensions: | Verification required |
Screen dimensions are the device’s active display area, not protector cut dimensions. Cut sizes depend on bezel geometry and adhesive design and are confirmed with the supplier before any production run. Housing dimensions are the overall device body, not the screen. Aspect ratio and pixel density are derived from the sourced values above.
OEM cleaning guidance
- water-moistened clean cloth (no phenol disinfectants, no autoclave, never spray agent onto chassis)source ↗
Published by the device manufacturer for the device. We make no compatibility claims about any screen protector and these chemicals.
Protection decision factors
Impact exposure
Consider
Cleaning regime
Check OEM chemistry below
Non-standard sizes
Custom cut is the default
Frequently asked questions
What screen size is the POC-421?
The POC-421 has a 21.5" display, per Advantech documentation.
Does Advantech make a first-party screen protector for the POC-421?
We found no first-party protector for this model in the sources checked; custom-cut via matched suppliers is the current path.
What cleaning products can be used on the POC-421 screen?
Advantech publishes guidance covering 1 cleaning agent for this device, listed in the OEM cleaning guidance section above. That guidance applies to the device's own screen; we make no compatibility claims between any cleaning chemical and any screen protector.
Can screen protectors for the POC-421 be sourced in quantity?
Yes. Submit a specification request with quantity and deployment environment, and matched suppliers respond with options cut for this model. Cut dimensions are confirmed with the supplier before any production run.
Material shortlist
PET film
Thin profile- Low profile
- Cost-effective at fleet quantity
- Verify cleaning-chemical compatibility with the supplier
✓ Discuss fit for your workflow
TPU film
Flexible film- Flexible application on curved areas
- Verify impact behavior with the supplier
- Confirm wear characteristics for your replacement cycle
ⓘ Evaluate based on workflow
Tempered glass
Rigid glass- Rigid construction
- Confirm thickness and touch sensitivity on your models
- Verify glove and stylus behavior with the supplier
ⓘ Confirm cut and fit first
Where this device runs
Industry guides covering the deployment conditions and cleaning chemistry this device faces.
Sources▾
- Model existence: https://www.advantech.com/en-us/products/poc-4-series/sub_dd884e6b-feea-4f15-9a54-885dbe64bbf2
- screen.diagonalIn: https://advdownload.advantech.com/productfile/PIS/POC-421/file/POC-421_14th_DS(110525)20251112090741.pdf
- screen.resolution: https://advdownload.advantech.com/productfile/PIS/POC-421/file/POC-421_14th_DS(110525)20251112090741.pdf
- screen.touchTechnology: https://advdownload.advantech.com/productfile/PIS/POC-421/file/POC-421_14th_DS(110525)20251112090741.pdf
- cleaning: https://ogmedical.pt/wp-content/uploads/2024/05/POC-421-12_424-12_User_Manual_Ed.1.1.pdf
- cleaning[0]: https://ogmedical.pt/wp-content/uploads/2024/05/POC-421-12_424-12_User_Manual_Ed.1.1.pdf
Research notes: Official Advantech product page states 21.5" 1920x1080, 350 nits, '10-point multi touch P-CAP (clear glass)'. Cleaning text is from the official POC-421-12/POC-424-12 User Manual Ed.1.1 (mirror of advantech.com manual id=1-2H7MFLT); it is the 12th-gen manual, applied to the 14th-gen model [unverified for -14 revision, same family guidance].
Also known as: POC-421-12, POC-421-14
Related POC-4 models: Advantech POC-415 Point-of-Care Terminal (15.6 in)Advantech POC-424 Point-of-Care Terminal (23.8 in)Advantech POC-621 Point-of-Care Terminal (21.5 in)Advantech POC-W242 Point-of-Care Terminal (23.8 in)Advantech TPC-1251T Touch Panel Computer (12.1 in)Advantech TPC-1551T Touch Panel Computer (15 in)