Change the world 8K

Image: LC-70X500 (Japan Domestic Model)
About 8K UHD Technology

8K UHD Reality Will Overwhelm You

Turning images into reality
—Amazingly high resolution brings realistic depth to the screen

Resolution so high, it looks like the real thing

High resolution 16 times that of Full HD

Today’s digital broadcasts in Full HD (high definition) have a resolution of 1,920 × 1,080 pixels, for 2.07 million pixels in total. 4K UHD (ultra high definition) has a resolution of 3,840 × 2,160, for 8.29 million pixels—four times higher resolution than Full HD. Because the horizontal screen display resolution is approximately 4,000 pixels, this technology is called 4K UHD.

8K UHD—the next step beyond 4K UHD—has now been realized. With a resolution of 7,680 × 4,320 pixels for a total of 33.18 million pixels, 8K UHD gives images that are 16 times more detailed than Full HD. If you get close to a Full HD TV screen, you can distinguish the individual dots. But no matter how close you get to an 8K UHD screen, you can’t see the dots with the naked eye. The images are so realistic that, to your senses, they cease being mere objects on a screen.

More real than reality

2D image with surprising depth

Ultra-high-resolution creates an almost 3D effect

Ultra-high-resolution images on a two-dimensional screen have such depth that they appear to be in 3D. When people look at something with both eyes, they perceive the scene as three dimensional based on how far away objects appear and how different near and distant objects appear.

This way that we look at the world around us can be faithfully reproduced by the ultra-high-resolution images of 8K UHD. Objects may be mere images on a screen, but the sense of depth we get from 8K UHD gives us a feeling of looking at the real thing. Everyone who watches 8K UHD agrees that it’s like looking out through an open window. That’s how real 8K UHD is. Clearly superior to current Full HD images, 8K UHD transports you inside the world on screen and makes you instinctively reach out and try to touch what’s in front of you.

Put yourself on the screen and live the story

Large field of view gives you the most of the big screen

There’s an optimal distance that a person should sit from the screen when watching TV. It’s called the preferred viewing distance*. For Full HD, the preferred viewing distance is three times the height of the TV screen. But 8K UHD has such high definition that you can’t distinguish the pixels, no matter how close you sit. So the preferred viewing distance for 8K UHD is 0.75 times the height of the screen. This difference in preferred viewing distance is manifested in the field of view that the TV screen occupies. Watching Full HD at the preferred viewing distance, the screen occupies 30 degrees of the viewer’s field of view. But when watching an 8K UHD display at the preferred distance, the screen occupies a 100-degree field of view.

Humans are said to have a field of view of 120 degrees, which means that the screen covers almost our entire field of view when we watch 8K UHD. Like watching on a big screen in a movie theater, you feel like you’re right there, immersed in the action. Furthermore, you can’t see the pixels, no matter how close you sit. And the images are practically three dimensional, so what you see before your eyes appears to be the real thing. This is what gives 8K UHD the breathtaking sense of being in the middle of the action. *Preferred optimal distance: The distance at which a person with average visual acuity cannot distinguish the pixels on a screen.

Visual expression beyond the limits of color

Note: This article refers to 4K UHD and 8K UHD standards for color gamut used in Japan. These standards may differ from those used in other countries/regions. Also, standards may vary depending on the broadcaster.

Colors exactly as they appear in nature

8K UHD color standard (BT.2020)

8K UHD is capable of reproducing a far wider range of color than previous HD. Under the color standard for current HD (BT.709), it’s impossible to reproduce all naturally occurring colors. But under the 8K UHD standard (BT.2020), even colors that don’t occur in nature can be reproduced.

Regarding color depth, which affects color gradation, 8K UHD delivers 12-bit color depth (4,096 shades), compared with HD’s 8-bit color depth (256 shades). This means 8K UHD renders gradations with smooth, natural transitions between the various color shades. For example, 8K UHD can perfectly reproduce the previously hard-to-render colors and gradations of the sky.

Outstanding color gradation for display of entire range from lightest to darkest

Note: This article refers to 4K UHD and 8K UHD standards for contrast used in Japan. These standards may differ from those used in other countries/regions. Also, standards may vary depending on the broadcaster.

Reproducing high contrast with HDR

HDR, or high dynamic range, is the technology for expanding the range between the bright and dark areas of an image. Compared the standard dynamic range (SDR) used in current broadcasting, HDR can display everything from extremely bright to extremely dark shades.

In conventional television images, for example, an on-screen light source such as the sun was so bright that it resulted in blown-out highlights. Conversely, dark portions of an image, such as a dark room, tended to have blocked-up shadows. In the case of extreme differences between light and dark areas in the same image, if adjustment is made towards the bright end, the dark end gets washed out and doesn’t look black. But adjusting to the dark end results in blown-out highlights at the light end.

With HDR, there are no blown-out highlights or blocked-up shadows. Images are reproduced with smooth gradations. Bright parts are clear and vivid, while dark parts appear as dark as they are in real life. The result is outstanding contrast between all the shades of light and dark in the spectrum. This enables the rich expression of highlights and shadows, resulting in meticulously detailed images.

The HDR gamut also accentuates the quality of color production. Contrast has a major influence on color production: the richer the gradation of brightness, the richer the colors will look. To express the greens of nature, you need to show shades such as dark, dull green and light, vibrant green. Thanks to HDR, these and other colors appear rich, vivid, and clear. Colors are reproduced with so much information that it’s almost like looking at the same naturally occurring things in real life. It’s so real, in fact, that you forget you’re looking at an image on a screen.

The fluid, moving images of the future

Note: This article refers to 4K UHD and 8K UHD standards for frame rate used in Japan. These standards may differ from those used in other countries/regions. Also, standards may vary depending on the broadcaster.

Frame rate double that of HD

Video is a string of still images shown one after the other, much like a flip book. The closer these still images are together, the more fluid and natural the movement in the video appears. The number of still images per second that make up a video is called the frame rate. In analog television, the frame rate was 30 frames per second (fps). In today’s HD, video is 60 fps. Although this gives sufficient smoothness to movement, 8K UHD specifications call for 120 fps.

On large-screen TVs, subjects in fast-moving images are sometimes blurred. Increasing the frame rate solves this problem and allows the smooth display of rapid action scenes. This is particularly effective in high-speed action such as sports. However, this brings up another problem. 8K UHD images themselves are high resolution and thus contain a lot of data, so doubling the frame rate further increases the amount of information going through the TV set. This means the TV set must have high performance capabilities in order to process all this data in real time. In the future, we will be able to enjoy such 120 fps, smooth-action video on television.

Conventional frame rate 8K UHD frame rate
Analogue Images: 30 fps HD Images: 60 fps
8K UHD images: 120 fps
Surround yourself with amazing realism

Note: This article refers to 4K UHD and 8K UHD standards for sound used in Japan. These standards may differ from those used in other countries/regions. Also, standards may vary depending on the broadcaster.

Sound that engulfs you in the experience

Surrounded by stunning 22.2-channel sound

In addition to image quality, 8K UHD represents a major evolution in sound. The sound system employs 22.2 multichannel audio arranged in upper, middle, and lower layers. The upper layer has nine channels, the middle layer has ten channels, and the lower layer has three channels. The lower layer also includes two low-frequency effects (LFE) channels. This means viewers get the sensation of being surrounded by both the on-screen action and the accompanying audio.

While 22.2 multichannel audio nominally requires 22 wide-band speakers and two LFE speakers, such a system would be impractical to install in the average home. But manufacturers will come out with a simplified system that reproduces this 22.2-multichannel sound on fewer speakers. Whichever way you look at it, being surrounded by the images and sound of an 8K UHD system transports us inside the world that we see on screen.

8K UHD Reality Will Overwhelm You

8K UHD Technology Opens Up NewPossibilities for the Future

The ways we can use 8K UHD technology keep expanding
──See the future of 8K UHD in our lives

The benefits of ultra-high definition will reach far and wide

It’s not just in broadcasting that 8K UHD ultra-high-definition technology will be used. It can excel in a wide range of fields, including advertising, design, security/monitoring systems, conferences, and presentations. We expect to see 8K UHD being used in the entertainment industry—especially in movies. And, as well as excelling in educational and academic fields, it shows great promise in medical applications.

With the ultra-high definition of 8K UHD, the tiniest details can be enlarged for viewing

8K UHD technology vividly reproduces every last detail, beyond the perception of the human eye. In academic fields, it lets you enlarge images of fine art, artifacts, or architectural structures, giving you a close-up look at the intricate techniques used by creators. Programs screened in recent TV broadcast tests have showcased artwork in museums. Viewers have been able to see details that would normally be invisible. It’s as if 8K UHD is revealing a reality that goes beyond the capabilities of the human eye.

8K UHD can even reveal an artist’s hidden techniques

8K UHD is drawing interest as a way to enhance the experience of visiting museums and art galleries. An 8K UHD display has many times the resolution of a conventional display. No matter how close you are to the screen, you can’t discern individual pixels with the naked eye. The wide color gamut of an 8K UHD display allows it to vividly render primary colors that are normally difficult to reproduce. Museums and art galleries can make the most of these features to devise new ways to display their collections. Some art museums are already using 8K UHD for their exhibits, and the number of such uses is set to grow.

8K UHD is expected to flourish in medical applications such as endoscopy and telediagnosis

8K UHD displays are highly anticipated in medical applications as well. Surgeons performing endoscopic surgery typically use a small monitor—an 8K UHD monitor completely transforms the equation. 8K UHD monitors have already been tested for use in medical treatments, and they’re winning plaudits for their effectiveness. 8K UHD images displayed on a large 85-inch screen give a magnified view of minute surgical sections. You can clearly see surgical sutures as small as 0.02 mm in diameter. Thanks to their ultra-high definition, 8K UHD images can even reveal the textures of body tissue. Surgeons have praised 8K UHD for making surgery easier and safer. We believe 8K UHD can make a huge contribution to the future of medicine.

8K UHD technology may literally be a life-saver for people on islands and in other remote places that can’t support full-time specialist physicians. Patients there will be able to benefit from precise diagnostic imaging via telemedicine. Tests are already underway to verify 8K UHD usage in telemedicine and telepathology. There’s no doubt that 8K UHD will have an ever-growing impact on our lives.

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