Understanding Television Terminology
Consistent with the industry-wide marketing practice of manufacturers and retailers, the CEA Video Division Board defines “LED TVs” to include liquid crystal display (LCD) televisions using light emitting diodes (LED) as a light source.
4K Ultra High-Definition TV
A display system may be referred to as 4K Ultra High-Definition if it meets the following minimum performance attributes:
Display Resolution—Has at least 8 million active pixels, with at least 3840 horizontally and at least 2160 vertically.
Aspect Ratio—The width to height ratio of the display’s native resolution is 16:9 or wider.
Upconversion – The display is capable of upscaling HD video and displaying it at 4K Ultra High-Definition display resolution.
Digital Input – Has one or more HDMI inputs supporting at least 3840x2160 native content resolution at 24p, 30p, & 60p frames per second. At least one of the 3840x2160 HDMI inputs shall support HDCP v2.2 or equivalent content protection.
Colorimetry – Processes 2160p video inputs encoded according to ITU-R BT.709 color space, and may support wider colorimetry standards.
Bit Depth – Has a minimum bit depth of 8 bits.
Connected 4K Ultra High-Definition TV
A display system may be referred to as Connected 4K Ultra High-Definition (or Connected 4K UHD) if it meets the following minimum performance attributes:
4K Ultra High-Definition Capability – Meets all of the requirements of CEA’s 4K Ultra High-Definition Display Characteristics V3
Video Codec – Decodes IP-delivered video of 3840x2160 resolution that has been compressed using HEVC* and may decode video from other standard encoders.
Audio Codec – Receives and reproduces, and/or outputs multichannel audio.
IP and Networking – Receives IP-delivered 4K Ultra HD video through a Wi-Fi, Ethernet, or other appropriate connection.
Application Services – Supports IP-delivered 4K Ultra HD video through services or applications on the platform of the manufacturer’s choosing.
* High Efficiency Video Compression Main Profile, Level 5, Main tier, as defined in ISO/IEC 23008-2 MPEG-H Part 2 or ITU-T H.265, and may support higher profiles, levels or tiers.
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