Handbook · 10 chapters
The monitor handbook
Ten chapters that go from what the eye can see to what the cable can carry. Each explains one decision, with its formulas, its figures drawn to scale and its limits, so that a specification sheet holds no more mysteries.
- 01 Pixel density: PPI, PPD and what the eye can resolve Why the same screen looks coarse at 50 cm and flawless at 90, and the one figure that predicts it. 4 min read
- 02 Viewing distance: how far, how high, at what angle Between 50 cm and 1 m, the right distance depends on the width of the screen. The geometry, and the posture that goes with it. 4 min read
- 03 Screen size and desk depth The depth of the desk fixes the viewing distance, and the distance fixes the size. What fits on 60, 70, 80 and 90 cm. 4 min read
- 04 Resolution and scaling: the workspace you really get More pixels do not mean more room. How scaling converts resolution into sharpness or workspace, on Windows, macOS and Linux. 4 min read
- 05 Panel types: IPS, VA, OLED and Mini-LED Contrast, viewing angles, speed, text rendering: what each technology does well, and what it costs. 5 min read
- 06 Refresh rate, response time and motion clarity Why a moving image is blurred even on a perfect panel, and what 120, 144 or 240 Hz really change. 4 min read
- 07 Ultrawide or two monitors One continuous surface or two separate ones: pixels, angles, desk width and habits of work, with numbers. 4 min read
- 08 Colour, gamut and HDR sRGB, P3, Adobe RGB, Delta E, 10 bits, DisplayHDR: reading the colour lines of a specification sheet without being misled. 5 min read
- 09 Connections: HDMI, DisplayPort, USB-C and Thunderbolt An image is a data rate. What each port and cable can carry, and how to avoid a 4K screen stuck at 30 Hz. 5 min read
- 10 Eye comfort: strain, flicker and blue light What actually tires the eyes at a screen, what the evidence says about blue light and flicker, and the settings that help. 6 min read
How to read it
The chapters follow the order of the decisions. The first three settle the question that comes before all others, the size of the screen: what the eye resolves, the distance at which a screen is comfortable, and what the depth of a desk allows. The fourth converts resolution into real workspace. The following four deal with the quality of the image: panel, motion, wide layouts, colour. The last two cover what surrounds the screen, the cable that feeds it and the eyes that look at it.
Each chapter opens with its conclusions for readers in a hurry and closes on the questions most often asked. The numbers in the tables and figures are computed from the same formulas as the selector; none is copied from a manufacturer’s sheet. Terms are defined in the glossary, and the reasoning behind the recommendations is set out in the method.
By situation
Guides with the selector already set
- Which monitor for a 60 cm deep desk24 inches on its stand, 27 inches on an arm: what 60 cm of depth really allows.
- Choosing a monitor for programmingSharp characters first, then lines and columns: the criteria that count for eight hours of code a day.
- 27-inch 1440p: the all-round format, examined109 PPI, 100% scaling, easy on graphics cards: why this format dominates, and when to prefer another.
- An ultrawide monitor for work: when, and which one34, 38, 40 or 49 inches: the desk depth each one needs and the work each one suits.
- Choosing a gaming monitorResolution the graphics card can drive, refresh rate, response time: a gaming screen is chosen in that order.
- Choosing a monitor for photo, video and designGamut by destination, measured accuracy, uniformity: what an image-work screen must guarantee.
Tools and reference
- SelectorFind the monitor size, resolution and layout that fit your desk depth, viewing distance and work, computed from viewing angle and pixels per degree.
- PPI and pixels-per-degree calculatorDensity, pitch, pixels per degree and the distance at which the pixels of any screen vanish.
- Monitor formats comparedWidth, height, density and comfortable distances of every format from 24 to 49 inches, in one table.
- Glossary of display termsOver fifty terms from specification sheets, defined in two sentences each.
- Frequently asked questionsDirect answers to the questions asked before buying a screen.
- Method and independenceThe six criteria, their weights by use, the limits of the model and how the site is funded.