science

List of common display resolutions

List of common display resolutions is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of common display resolutions rather than just read about it. In short: This article lists computer monitor, television, digital film, and other graphics display resolutions that are in common use. Most of them use certain preferred numbers.

Key takeaways

List of common display resolutions belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of common display resolutions to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of common display resolutions from memory before moving on to harder problems.

Reference excerpt

This article lists computer monitor, television, digital film, and other graphics display resolutions that are in common use. Most of them use certain preferred numbers.

Computer graphics

Pixel aspect ratio (PAR) The horizontal to vertical ratio of each pixel. Storage aspect ratio (SAR) The horizontal to vertical ratio of solely the number of pixels in each direction. Display aspect ratio (DAR) The combination (which occurs by multiplication) of both the pixel aspect ratio and storage aspect ratio giving the aspect ratio as experienced by the viewer.

Television and media For television, the display aspect ratio (DAR) is shown, not the storage aspect ratio (SAR); analog television does not have well-defined pixels, while several digital television standards have non-square pixels.

Analog systems

Digital standards

Many of these resolutions are also used for video files that are not broadcast. These may also use other aspect ratios by cropping otherwise black bars at the top and bottom which result from cinema aspect ratios greater than 16∶9, such as 1.85 or 2.35 through 2.40 (dubbed "Cinemascope", "21∶9" etc.), while the standard horizontal resolution, e.g. 1920 pixels, is usually kept. The vertical resolution is usually a multiple of 8 or 16 pixels due to most video codecs processing pixels on such sized blocks. A widescreen FHD video can be 1920 × 800 for a 12∶5 ratio or 1920 × 1040 for roughly 1.85∶1, for instance.

Films

The below distinguish SAR (aspect ratio of pixel dimensions), DAR (aspect ratio of displayed image dimensions), and the corresponding PAR (aspect ratio of individual pixels), though it currently contains some errors (inconsistencies), as flagged.

Video conferencing

CCTV 960H is a resolution used in analog CCTV equipment. 960H represents the number of horizontal pixels in a video signal transmitted from a camera or received by a DVR (Digital Video Recorder). The resolution of 960H depends on whether the equipment is PAL or NTSC based: 960H represents 960 × 576 (PAL) or 960 × 480 (NTSC) pixels. 960H represents an increase in pixels of some 30% over standard D1 resolution, which is 720 × 576 pixels (PAL), or 720 × 480 pixels (NTSC). The increased resolution over D1 comes as a result of a longer horizontal scan. The difference is that whilst D1 has a 4:3 aspect ratio 960H has a 16:9 widescreen aspect ratio. The extra pixels are used to form the increased area to the sides of the D1 image. The pixel density of 960H is identical to standard D1 resolution so it does not give any improvement in image quality, merely a wider aspect ratio. Alternative analog video transport technologies carrying higher resolutions than 960H include HD-TVI, HDCVI, and AHD.

Notes

References

Further reading Myers, Robert L. (4 October 2002). "Format and Timing Standards". Display Interfaces: Fundamentals and Standards. Chichester: John Wiley and Sons. p. 132. ISBN 0-471-49946-3. Rosch, Winn L. (21 February 2003). "Display Systems". Winn L. Rosch Hardware Bible (6th ed.). Que Publishing. p. 827. ISBN 0-7897-2859-1.

External links Interactive Visualization : Screen Resolutions Resolutions for Common Aspect Ratios Archived 20 May 2021 at the Wayback Machine

Illustrations

Worked examples

Example 1 — a first encounter with List of common display resolutions

Start with the simplest possible case. Write down what List of common display resolutions claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of common display resolutions before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of common display resolutions ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of common display resolutions

In research: List of common display resolutions appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of common display resolutions in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of common display resolutions is common in secondary-school and first-year university syllabi. It links to neighbouring topics Display technology, Lists of standards, so understanding it makes those chapters shorter.
In everyday life: Look for List of common display resolutions outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of common display resolutions in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of common display resolutions means in your own words.
Compare your version with the excerpt and mark what you missed.
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Frequently asked questions

What is List of common display resolutions in simple terms?

This article lists computer monitor, television, digital film, and other graphics display resolutions that are in common use. Most of them use certain preferred numbers.

Why does List of common display resolutions matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of common display resolutions?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of common display resolutions.