What is UHD TV, 4K TV? The difference between 4K TVs compared to HD TVs and Full HD TVs

UHD TV or 4K TV is the TV with the sharpest picture quality available today. Let’s learn more about 4K TVs with lassho.edu.vn and the differences between TVs with this resolution and Full HD and HD TVs!

What is UHD (Ultra HD)? Special features of UHD technology

UHD aka Ultra HD is abbreviated as Ultra High Definition with super high definition. UHD only has a resolution greater than 2K , also known as two image standards such as Ultra HD 4K (2160p) and Ultra HD 8K (4320p) according to new regulations of the International Telecommunication Union.

• 4K UHD (2160p): Has a width of 3,840 pixels and a height of 2,160 pixels with 8.29 megapixels. The resolution of this series is more than four times higher than the 1920 x 1080 pixels (2.07 megapixels) commonly found in Full HD screens.
• 8K UHD (4320p): Has a width of 7,680 pixels and a height of 4,320 pixels (33.18 megapixels). The resolution of 8K UHD is 16 times higher than the pixels of a regular Full HD TV.

Special features of UHD technology:

UHD technology is equipped with 4 times more pixels than conventional screens for the sharpness of each area to help viewers have an extremely realistic and vivid picture experience.

Some of the outstanding technologies of UHD screens make images sharp, such as:

• Auto Depth Enhancer: This technology has the function of dividing the image into different layers such as foreground, middle and background. From there, the technology will adjust to increase contrast differently to create images with depth, vivid on the screen.
• PurColor: PurColor technology can adjust more than 192 colors and the sampling point is up to 4 times higher than conventional TVs. Image quality is enhanced to create high definition.
• Upscaling: This function is capable of image processing and signal recognition , when the image reaches HD or SD quality, Upscaling will be transferred to a noise reduction filter to create sharp pixels 4 times higher than the screen. normally.
• UHD Dimming: This is a new line of technology that helps users get clearer images with the contrast and super sharp quality of UHD.

What does 4K resolution mean? Special features of 4K

4K, also known as Ultra HD – This is a technology that helps users have a realistic feeling when watching with many small pixels and the ability to upgrade video quality from TVs, projectors, … up to near 4K standard. .

Currently, 4K technology is widely used in homes to provide an experience like a home theater.

Special features of 4K resolution:

With 4K resolution, it has brought users significantly improved video image quality combined with a large screen to help users limit the visibility of the screen pitting.

Depth and edges are smooth with 4K resolution featuring fast screen refresh.

What is 4K TV?

4K TV is a TV with 4K screen resolution with a width of 3,840 pixels and a height of 2,160 pixels for a total of about 8.3 million pixels (8.3MP) .

For 4K TVs, the picture quality is 4 times higher than traditional Full HD (1920 x 1080) TVs. Therefore, the picture quality of 4K TVs is very vivid and detailed thanks to the pixel density.

On a 4K TV, there’s usually something from 4K information streaming, 4K streaming services, 4K disc players and 4K Blu-ray discs to UGC video that uses a 4K camera to shoot, or maybe a 4K smartphone.

Difference between 4K TV with Full HD TV and HD TV

Criteria	HD TV	Full HD TV	TV 4K
Number of pixels	About 1 million.	More than 2 million.	8.3 million.
Resolution	1280 x 720 pixels.	1920 x 1080 pixels.	3840 x 2160 pixels.
Image quality	Television in high definition, using 60 frames per wire.	The picture quality is twice as high as that of an HD TV.	Sharpness, clarity is 4 times higher than Full HD TV.
Screen technology	Screen technology is not supported yet.	Not yet support high-end screen technology.	Advanced technology in color, sharpness or sound. Smart features such as Smart TV, curved screen and QLED, OLED screen technology,…
Image technology	2K HDR, Super Brightness Display, Dynamic Color, HDR Dynamic Tone Mapping,…	Natural Mode, Film mode, HDR, Hyper Real Engine, Digital Clean View, Micro Dimming Pro, Ultra Clean View,…	HDR Dynamic Tone Mapping, HDR10 Pro, HLG, Image Enhancing, 4K AI Upscaling.
Audio Technology	Dolby Audio, Nature Sound	Dolby Digital Plus	Clear Voice III, AI Sound, AI Acoustic Tuning,…
Microprocessor	There are only Quad Core chips on LG TVs.	Do not have.	4K processors like 4K X-Reality PRO, UHD Upscaling, Tru-Ultra HD, etc.
Price	5-11 million dong.	10 – 30 million VND.	10 – 250 million VND.

In fact, it is very difficult for us to distinguish 4K, Full HD and HD TVs, but when you apply the TV screen size to distinguish the lines:

• For HD TVs with 40 inches, the image created will be lost, the image on the screen will be lost because the pixels are too low to meet the 40-inch TV. For HD resolution, only TVs with a size of 32 inches or less are suitable.
• Full HD TV is suitable for TVs with a size of 45 inches or less . If you choose to buy a Full HD TV with a size of 60 inches, the tiny cells due to Full HD resolution cannot be met.
• The 100-inch TV with 4K resolution will give users an experience with extremely sharp picture quality with 8.3 million pixels enough to cover the screen for a more seamless and realistic picture.

Please refer to some best-selling 4K TVs at lassho.edu.vn:

Through the above article, we have learned together about 4K resolution . Hopefully, this information will help you choose a 4K TV to meet all your family’s entertainment needs!