science

HD ready

HD ready 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 HD ready rather than just read about it. In short: HD ready is a certification program introduced in 2005 by EICTA (European Information, Communications and Consumer Electronics Technology Industry Associations), now DIGITALEUROPE. HD ready minimum native resolution is 720 rows in widescreen ratio.

Key takeaways

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

Reference excerpt

HD ready is a certification program introduced in 2005 by EICTA (European Information, Communications and Consumer Electronics Technology Industry Associations), now DIGITALEUROPE. HD ready minimum native resolution is 720 rows in widescreen ratio. There are four different labels: "HD ready", "HD TV", "HD ready 1080p", "HD TV 1080p". The logos are assigned to television equipment capable of certain features. In the United States, a similar "HD Ready" term usually refers to any display that is capable of accepting and displaying a high-definition signal at either 720p, 1080i or 1080p using a component video or digital input, but does not have a built-in HD-capable tuner.

History The "HD ready" certification program was introduced on January 19, 2005. The labels and relevant specifications are based on agreements between over 60 broadcasters and manufacturers of the European HDTV Forum at its second session in June 2004, held at the Betzdorf, Luxembourg headquarters of founding member SES Astra. The "HD ready" logo is used on television equipment capable of displaying High Definition (HD) pictures from an external source. However, it does not have to feature a digital tuner to decode an HD signal; devices with tuners were certified under a separate "HD TV" logo, which does not require a "HD ready" display device. Before the introduction of the "HD ready" certification, many TV sources and displays were being promoted as capable of displaying high definition pictures when they were in fact SDTV devices; according to Alexander Oudendijk, senior VP of marketing for Astra, in early 2005 there were 74 different devices being sold as ready for HD that were not. Devices advertised as HD-compatible or HD ready could take HDTV-signal as an input (via analog -YPbPr or digital DVI or HDMI), but they did not have enough pixels for true representation of even the lower HD resolution (1280 × 720) (plasma-based sets with 853 × 480 resolution, CRT based sets only capable of SDTV-resolution or VGA-resolution, 640×480 pixels), much less the higher HD resolution (1920 × 1080), and so were unable to display the HD picture without downscaling to a lower resolution. Industry-sponsored labels such as "Full HD" were misleading as well, as they can refer to devices which do not fulfil some essential requirements such as having 1:1 pixel mapping with no overscan or accepting a 1080p signal. A UK BBC television programme found that separate labels for display devices and TV tuners/decoders confused purchasers, many of whom bought HD-ready equipment expecting to be able to receive HD with no additional equipment; they were sometimes actively misled by salespeople—a 2007 Ofcom survey found that 12% were told explicitly that they could view analog SDTV transmissions in HD, 7% that no extra equipment was needed, and 14% that HD-ready sets would receive existing digital SDTV transmissions in HD. On August 30, 2007, 1080p versions of the logos and licensing agreements were introduced; as an improvement to the earlier scheme, "HD TV 1080p" logo now requires "HD ready 1080p" certification.

Requirements and logos

HD ready and HD ready 1080p logos are assigned to displays (including integrated television sets, computer monitors and projectors) which have certain capabilities to process and display high-definition source video signal, outlined in a table below. The HD TV logo is assigned to either integrated digital television sets (containing a display conforming to "HD ready" requirements) or standalone set-top boxes which are capable of receiving, decoding and outputting or displaying high-definition broadcasts (that is, include a DVB tuner for cable, terrestrial or satellite broadcasting, a video decoder which supports H.264/MPEG-4 AVC compression in 720p and 1080i signal formats, and either video outputs or an integrated display capable of handling such signals). The HD TV 1080p logo is assigned to integrated digital television sets which have a display conforming to "HD ready 1080p" requirements, a DVB tuner and a decoder capable of processing 1080p signal. In order to be labelled "HD ready 1080p" or "HD Ready" logo, a display device has to meet the following requirements:

References

External links HD ready official UK website High Definition Television and Logos - EICTA EICTA: Broadcast License agreement and HD Ready 1080p requirements HD Ready 1080p press release DVDActive article - Are You Ready for HDTV? "Learn About High Definition TV - HD "Compatible" or HD-"Ready"?". Pioneer Electronics. Archived from the original on 2006-01-02.

Illustrations

HD ready logo for devices that are not 1080p

Current logo for 1080p displays

Logo for 720p televisions and set-top boxes

Worked examples

Example 1 — a first encounter with HD ready

Start with the simplest possible case. Write down what HD ready 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 HD ready 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 HD ready 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 HD ready

In research: HD ready 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 HD ready 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: HD ready is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2005 establishments in the European Union, Audiovisual introductions in 2005, High-definition television, so understanding it makes those chapters shorter.
In everyday life: Look for HD ready 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 HD ready in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HD ready means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain HD ready out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HD ready in simple terms?

Why does HD ready 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 HD ready?

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 HD ready.