Measurement & Fit
How to Measure a Screen for a Privacy Filter
Measure visible width, height, diagonal, aspect ratio and edge conditions for a laptop or monitor privacy filter, then prepare a fit-review request.
Choosing a privacy filter starts with more than a laptop or monitor’s diagonal label. A useful fit review needs visible width and height, aspect ratio, screen construction, edge, camera and installation details.
This article explains how to measure a screen for a privacy filter. When ready, use the privacy filter measurement worksheet to organize the record and submit it for fit confirmation.
Start with the filter decision, not only the diagonal label
What ScreenWord needs to review fit
Prepare a short device record with these fields:
- Device type: laptop, desktop monitor, POS display, industrial display or another format.
- Brand and model, including the exact model code when it is available.
- Visible screen width and visible screen height in millimeters.
- Screen diagonal as a cross-check.
- Aspect ratio calculated from the measured width and height.
- Touchscreen requirement, if touch operation must remain usable.
- Camera, sensor, logo, hinge and edge conditions.
- Preferred attachment method.
- Required quantity and whether the request covers one device or a mixed fleet.
- Front and edge photos, especially when the model is uncertain or the display is unusual.
- Any customization request for size, material, finish, packaging or installation details.
Keep three boundaries separate in the record:
- Visible display area: the visible screen width and height used as the basic fit information.
- Full glass area: the complete glass width and height, recorded separately when the request concerns full-glass or edge-to-edge coverage. Add the glass edge and every opening position.
- Planned coverage and final filter dimensions: the area you want covered and the finished privacy-filter dimensions. Do not mix either of these with visible display measurements or infer the finished dimensions from them.
Why model name and advertised inches are starting points, not proof
Two devices can share a diagonal label while having different visible widths, heights, bezels, camera positions or edge geometry. A model name can be incomplete or shared by several revisions. Use model and diagonal to identify the device, then use measurements and photos for the fit review.
For a laptop, review the laptop privacy screen options; for office and workstation displays, compare the monitor privacy screen options. Keep those product paths separate from the measurement record.
Identify the screen construction
Before placing a ruler on the screen, look at how the glass, bezel and housing meet. The construction changes which edges need to be recorded and which installation methods may need further review.
Raised bezel
A raised bezel has a frame above or around the display surface. Measure the visible image area inside the opening, not the outside frame. Record whether the bezel is even, wider on one side, or interrupted by a camera or sensor. Add an edge photo for the installation geometry.
Flat front glass / edge-to-edge cover glass
With flat front glass or an edge-to-edge cover glass, the display surface may run close to the outer edge. Measure the visible rectangle and, when full-glass coverage is requested, measure the complete glass separately. Record whether the glass is flat, curved, recessed or interrupted by a cutout, and photograph the top edge and corners.
Industrial housing, POS bezel and recessed display
For an industrial display, POS terminal or kiosk, record the visible opening separately from the housing. Note any recess depth, lip, cutout, control or cable area with words or a side photo. If the surface is curved, ultrawide or non-standard, mark it for custom evaluation.
Measure the visible display area
Use millimeters for the main record. Measure the visible display area that shows the image; exclude the bezel, device body and enclosure. For full-glass or edge-to-edge coverage, add separate glass width and height, edge and opening fields. Power the screen on if that makes the active boundary easier to identify.
Width in millimeters
Place the ruler or caliper reference horizontally from the left visible image edge to the right. Keep it level with the display, not the outside lid or housing. Record visible screen width in millimeters. If the edges are not symmetrical or an inactive border is present, describe that condition separately.
Height in millimeters
Measure vertically from the top visible image edge to the bottom. Exclude the top bezel, camera surround, bottom frame and device body. Record visible screen height separately in millimeters. Check the laptop hinge and camera side, or the housing lip on a monitor; add front and edge photos if an edge is unclear.
Diagonal as a cross-check, not the only measurement
Measure from one visible display corner to the opposite corner, not the outer bezel corners. Use the diagonal to compare with a device label or fleet record. For example, 309 mm by 174 mm gives a calculated diagonal of approximately 354.6 mm.
How to avoid including bezel or inactive border
Use the inner image boundary and inspect all four sides. If a black border is not part of the active image, say whether your measurement follows the glass opening or active boundary. Keep the distinction in the notes and show it in a photo when relevant.
Record aspect ratio and edge conditions
Use width ÷ height as a check
Calculate the aspect ratio by dividing the measured width by the measured height. A record of 309 mm ÷ 174 mm is about 1.78, close to a 16:9 display shape. If the result is unexpected, recheck the endpoints and confirm that bezel or inactive border was not included.
Camera, sensor, logo, hinge and lid-clearance notes
Write down anything interrupting an edge: camera openings, infrared or ambient-light sensors, status lights, logos, buttons and cutouts. For laptops, add the hinge and lid-clearance condition, including whether the hinge rises behind the panel. These notes separate the visible display from device geometry.
Housing lip, cutout and enclosure conditions
For monitors, POS units and industrial displays, note a housing lip, recessed panel, curved corner, mounting frame, touch overlay or enclosure cutout. Include a side photo showing the glass-to-housing relationship. Label curved, ultrawide or non-standard screens for custom evaluation.
Choose the measurement set for the installation method
Every method starts with visible width, height and aspect ratio. Add the edge information that relates to how the filter is expected to sit on the device.
Magnetic
Record the visible rectangle, top and side edges, camera or sensor position, bezel and lid or housing clearance. State the magnetic preference and include a full-top-edge front photo.
Nano/direct-attach
Record visible width and height, outer glass condition, flat/recessed/curved surface, camera or sensor areas, and touch requirements. Identify the direct-attach preference so the surface and edges can be reviewed.
Clip/full-adhesive or static/full-adhesive
Record the visible rectangle, usable flat area, bezel lip, camera opening and controls. State whether the preference is clip, adhesive-strip, full-adhesive or static. Add front and edge photos.
Slide-tab and hanging acrylic
Record visible width and height plus top/side edges and hinge or housing clearance. Note whether tabs or a hanging piece would sit outside the visible area and whether the enclosure has a lip. Include photos for non-standard or curved displays.
Use this comparison when preparing the request. The basic dimensions always begin with visible screen width and height in millimeters. Add full-glass dimensions only when the planned coverage reaches the complete glass surface, and keep the requested coverage range separate from both.
| Installation method | Basic dimensions | Additional edge or opening information | Suggested photos |
|---|---|---|---|
| Magnetic | Visible width × height (mm), diagonal and ratio; add full-glass width × height when relevant | Raised bezel, top edge, camera/sensor position, hinge or lid clearance | Centered front photo with full top edge; top/side edge photo |
| Nano/direct-attach | Visible width × height (mm), diagonal and ratio; separate glass width × height for full-glass coverage | Flat, recessed or curved glass; camera/sensor cutouts; edge and touch conditions | Front photo of glass boundary; close edge/cutout photo |
| Clip / full-adhesive or static / full-adhesive | Visible width × height (mm), diagonal and ratio; planned coverage range stated separately | Usable flat area, bezel lip, camera opening, controls and housing edge | Front photo; side photo showing usable area and lip |
| Slide-tab | Visible width × height (mm), diagonal and ratio | Top edge, tab placement area, camera/sensor opening and laptop hinge clearance | Front photo with top edge; top/hinge photo |
| Hanging acrylic | Visible width × height (mm), diagonal and ratio | Monitor housing lip, top support, side clearance and any enclosure opening | Front photo of full display; top and side housing photos |
Slide-tab and hanging acrylic are separate structures: one records the laptop top-edge/tab area, while the other records how a monitor or enclosure can support a hanging piece. Neither row converts the visible measurement into a finished filter dimension.
Photograph the device for fit review
Front-on photo
Take a centered photo of the entire device or display with all four visible corners, camera/sensor area, bezel and housing in frame. Add a ruler only if it does not hide an edge. Avoid angles that distort width and height.
Edge/hinge/housing photo
Take close top and side photos. For a laptop, include the hinge and lid gap. For a monitor, POS unit or industrial display, include the bezel lip, recess and enclosure side. Photograph any unusual edge directly.
Ruler reference and file naming
Use a metric ruler or identified millimeter reference in the screen plane where possible. A photo does not replace written width and height. Use names such as brand-model-front.jpg, brand-model-edge.jpg and brand-model-measurement.jpg; add a fleet identifier for mixed devices.
Build the final fit-review request
Single device checklist
Copy this checklist into a request for one device:
- Device type recorded.
- Brand and exact model recorded, or model uncertainty explained.
- Visible width recorded in millimeters.
- Visible height recorded in millimeters.
- Diagonal recorded as a cross-check.
- Aspect ratio calculated from width ÷ height.
- Touchscreen requirement stated.
- Camera, sensor, logo, hinge and edge conditions noted.
- Preferred installation method stated.
- Required quantity stated.
- Front and edge photos attached.
- Custom size, material, packaging or other requirements listed.
Use this fill-in template for one device. Leave a field blank only when it does not apply, and explain why in the details column.
| Field | Your measurement or details |
|---|---|
| Device type | |
| Brand and model | |
| Visible screen width | ____ mm |
| Visible screen height | ____ mm |
| Screen diagonal | ____ mm or ____ in; state the unit |
| Aspect ratio (visible width ÷ visible height) | |
| Full glass width, if applicable | ____ mm |
| Full glass height, if applicable | ____ mm |
| Planned coverage range | Visible area / full glass / other: describe |
| Final privacy-filter dimensions | Leave for written confirmation; do not infer |
| Touchscreen requirement | |
| Camera, sensor, logo, hinge and edge conditions | |
| Preferred attachment method | |
| Required quantity | |
| Front photo filename | |
| Edge photo filename | |
| Customization or packaging requirements |
Mixed-device schedule columns
For a fleet, keep each device group on its own row. Do not average different screens into one size.
| Group | Device type | Brand / model | Quantity | Visible width (mm) | Visible height (mm) | Diagonal (mm or in; state unit) | Ratio | Touch | Edge / camera / hinge notes | Preferred method | Photos | Custom notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | Laptop | Record exact model | Front + edge | |||||||||
| B | Monitor | Record exact model | Front + edge | |||||||||
| C | Custom display | Record enclosure or drawing ID | Front + edge |
Keep each device group separate so a mixed order can be reviewed by group.
When to request a sample
Request a sample or drawing review when the model is uncertain, the edge is unusual, the screen is curved or ultrawide, the display is recessed, or installation depends on a camera, sensor, hinge or housing lip. Include the same measurements and photos as a production inquiry.
When the record is ready, use find your privacy screen size for the next fit-assistance step or send measurements for fit review with the device details, photos, method and quantity.
Common measuring mistakes
- Measuring the outside of the laptop lid, monitor bezel or industrial housing instead of the visible display.
- Sending only the advertised diagonal and leaving width, height and ratio blank.
- Recording inches in one field and millimeters in another without identifying the units.
- Measuring a black inactive border without explaining whether it is part of the intended visible area.
- Forgetting a top camera, sensor, logo, hinge, side cutout or recessed housing lip.
- Treating a model name as proof when the exact revision is unknown.
- Averaging different devices in a mixed fleet instead of creating one row per size or model group.
- Using an angled photo that hides the top or side edge.
Frequently asked questions
Can I measure only the diagonal?
No. Diagonal is useful as a cross-check, but visible width, visible height, aspect ratio and edge conditions are needed for a more useful fit review.
Should I include the bezel?
No. Measure the visible display area and record the bezel or housing as a separate condition. Add an edge photo when the frame is raised, recessed or uneven.
What if I need coverage across the full glass?
Record visible display width and height first. Then add full glass width and height, every edge and opening position, and the planned coverage range as separate fields. Do not turn either measurement into final privacy-filter dimensions; the submitted record supports fit confirmation and the final dimensions are confirmed in writing.
What if I do not know the exact model?
Submit the measurements you can verify, mark the model as uncertain, and include centered front and edge photos. The reviewer can then determine what additional information is needed.
How should I measure a curved or ultrawide screen?
Record the visible width, height, diagonal and aspect ratio, then describe the curve or unusual shape and attach front and edge photos. Mark the request for custom evaluation instead of treating it as a standard rectangle.
Does submitting measurements confirm compatibility?
The information supports fit confirmation. Final coverage, filter dimensions, attachment details and order scope are confirmed in writing after review.
What should I send for a final quote request?
Send the brand and model, device type, visible width × height in millimeters, diagonal, aspect ratio, touchscreen requirement, edge/camera/sensor/hinge notes, preferred installation method, quantity, front and edge photos, and customization or packaging requirements. Then request a quote for the next review step.