Display Pattern
🔍 What to Look For
Lines should appear perfectly straight. Any bowing, bending, or waviness indicates display distortion.
📏 Barrel Distortion
Lines bow outward from center. Common in wide-angle lenses and some curved monitors.
📐 Pincushion Distortion
Lines bow inward toward center. Often seen in older CRT monitors or projectors.
How to Use This Tool
The Line Straightness Visualizer helps you test your monitor or display for geometric distortion. Any curves or bends in what should be perfectly straight lines indicate calibration issues.
Testing Steps
- Go fullscreen — Click the fullscreen button for accurate edge-to-edge testing
- Check the grid — Lines should be perfectly straight from edge to edge
- Test different patterns — Some distortions are more visible with certain patterns
- Adjust spacing — Wider spacing makes subtle distortion more visible
- Try different colors — Some displays have color-specific rendering issues
Common Issues
| Symptom | Likely Cause | Solution |
|---|---|---|
| Lines bow outward | Barrel distortion | Check monitor settings or projector keystone |
| Lines bow inward | Pincushion distortion | Adjust geometry settings in monitor OSD |
| Wavy lines | Panel defect or interference | Check cable connections, try different input |
| Jagged edges | Resolution mismatch | Use native resolution of your display |
About Display Distortion
Display distortion occurs when the geometry of the image doesn't match the intended output. This can be caused by the display panel itself, improper calibration, lens effects (in projectors), or signal processing issues.
Why it matters: For graphic design, photography, video editing, and CAD work, accurate geometry is essential. What looks straight on a distorted display might actually be curved, leading to errors in your work.
Modern LCD and OLED panels generally have excellent geometry, but projectors, curved monitors, and some budget displays may exhibit noticeable distortion that should be corrected via settings or avoided for precision work.
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are estimates and may vary based on actual conditions.
Related Tools
- Audio Motion Correlation Visualizer -- Visualize correlation between audio input and device motion in real-time
- Water Heater Cost Calculator -- Calculate annual water heating costs and compare gas vs electric vs tankless
- Split Bill Calculator -- Split a total evenly across a group
- Pie Chart Generator -- Create customizable pie charts from your data with percentages and labels
Related Tools
View all toolsSquare Footage Calculator
Calculate area in square feet from room dimensions for flooring, painting, and more
Tip Calculator
Calculate tip amount, total, and per-person split
Online Compass
Digital compass using your device's magnetometer sensor
Split Bill Calculator
Split a total evenly across a group
Receipt Total Calculator
Add line items, tax, discounts, tip, and split totals instantly
Shopping List Builder
Build a smart shopping list with quantities, categories, and budget tracking
Line Straightness Visualizer FAQ
What is Line Straightness Visualizer?
Line Straightness Visualizer is a free utility & everyday tool that helps you Test your display for distortion with straight line patterns.
How do I use Line Straightness Visualizer?
Enter your input values, review the calculated output, and adjust inputs until you reach the result you need. The result updates in your browser.
Is Line Straightness Visualizer private?
Yes. Calculations run locally in your browser. Inputs are not uploaded to a server by default, and refreshing the page clears session data.
Does Line Straightness Visualizer require an account or installation?
No. You can use this tool directly in your browser without sign-up or software installation.
How accurate are results from Line Straightness Visualizer?
This tool applies standard formulas or deterministic processing logic for estimates. For medical, legal, tax, or investment decisions, verify with a qualified professional.
Can I save or share outputs from Line Straightness Visualizer?
You can bookmark this page and copy outputs manually. Results are not persisted in your account and are typically not embedded in the URL.