ull HD refers to 1080p image resolution. Full HD is the standard resolution for most HD videos found in Blu-ray, digital TV and online, such as those on YouTube, Hulu and Vimeo. Full HD is lower than standard HD or 720p - lower than full 1080p HD image resolution. At the upper end of the spectrum, there is Ultra HD (UHD or 4K). This image resolution is larger, clearer and clearer than 1080p. However, Ultra HD image resolution is not yet widely adopted.

In some cases, the term "HD" can be used interchangeably with "Full HD" to describe the image resolution of a product. This can easily lead to confusion, because HD can also refer to standard HD or 720p. For the sake of clarity, you should know that HD may refer to 720p or 1080p, but Full HD can only refer to 1080p. In addition, the phrase HD Ready refers only to 720p. If you are unsure of the monitor image resolution based on the product description, check the specifications to determine the actual image size. This will be discussed in more detail below.

What is the difference between "HD Ready" and "Full HD" resolution?

When used to describe a television or monitor, the term "HD Ready" refers to a 720p image resolution. The term "HD" can also be used. The 720p image resolution contains 720 rows of pixels along the vertical axis and 1,280 rows of pixels along the horizontal axis. Therefore, the image is 720 pixels high and 1,280 pixels wide. This results in a total number of pixels of 921,600. This is the lowest image resolution considering high definition. The difference between HD Ready (or HD), Full HD and Ultra HD is as follows:

HD: 720p image resolution (1,280 x 720 pixels - total pixels are about 1 million)

Full HD: 1080p image resolution (1,920 x 1,080 pixels - total pixels about 2 million)

Ultra HD: 4K image resolution (3,840 x 2,160 pixels - total pixels about 8 million)

The more pixels in the image, the better. why? Since there are more pixels, the image can be displayed in a larger size without deteriorating the image. More pixels in a given area also allow the image to contain little or no visible pixels - this is called a "retina display." In a retina display, there are more pixels in a particular area than pixels that the human eye can see alone.

What is the difference between HD and Full HD in practice? For example, consider this: a 50-inch TV with 1080p image resolution will be sharper and finer than a 50-inch TV with 720p image resolution. In addition, the physical size of a 1080p retina display may be larger than a 720p retina display because there are more total pixels. For the best image quality, Full HD delivers superior images for standard HD.

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