CTA Establishes 8K Ultra HD TV Performance Specs
The Consumer Technology Association (CTA) and its member companies this week released specifications for 8K Ultra HDTV performance, which must be met to earn the organization’s new “8K Ultra HD” television certification logo.
The CTA said the logo certification will begin to appear in models released for 2020, and is intended to help retailers and their customers easily identify compliance with the standard among the expanding field of televisions expected to be marketed as 8K TV sets next year.
The CTA’s 8K performance specs are also up against performance specifications for other technology groups including the 8K Associations, which has established its own set of 8K TV minimum performance guidelines, although the details so far are only available to member companies. Samsung, Hisense and TCL are among the finished TV set manufacturers along with various panel suppliers to have signed on with the 8K Association so far.
The CTA’s video performance guideline are the next in a long line of TV resolution guidelines that have been released over the years at the outset of new display formats, including the criteria for 4K Ultra HDTV. The Associations criteria tends to be widely recognized and adopted by other display standards bodies around the world.
The 8K Ultra HD logo definitions address the display’s resolution, digital inputs, HDR, up-conversion capability and bit depth. Each has been established and set by the CTA Video Division Board, comprised of representatives from the consumer electronics industry’s leading manufacturers, retailers and enabling companies, the CTA said in announcing the guidelines.
The CTA said its 8K Ultra HD logo license and certification agreement will be available in the coming weeks, and the logo may be used starting Jan. 1, 2020 (in time for the 2020 CES in Las Vegas).
Among the specified criteria for a complying “8K Ultra HD” television is the following:
Display Resolution: “The display shall have at least 33 million active pixels, with at least 7680 horizontally and 4320 vertically within a 16:9 viewable window. The aspect ratio of the image shall be properly produced and not distorted. Physical pixels shall be individually addressable such that the horizontal and vertical resolution above can be demonstrated over the full range of colors provided by the display and measured in accordance with the established guidelines for measurement of visible resolution specified in version 1.03c, section 7.8, of the International Display Measurement Standard (IDMS) specified by the International Committee for Display Metrology (ICDM). Display shall meet a minimum of 50% contrast modulation using a 1×1 grill pattern.”
The guidelines further explain that “if the contrast measurement is phase dependent, the average of the measurements of thetwo phases shall be used for the calculation of contrast modulation as described in section 7.2of IDMS 1.03c.”
Digital Inputs: An 8K Ultra HD display must have one or more HDMI inputs supporting the following characteristics:
- Resolution of 7680×4320 pixels.
- Bit depth of 10-bits.
- Progressive scan.
- Frame rates of 24, 30, and 60 frames per second [HDMI 2.1] as well as at the associated 1000/1001 fractional frame rates.
- Frame rates of 25 and 50 frames per second for displays intended for use in 50 Hz regions. HDR transfer functions as specified by ITU-R BT.2100.
- RGB Colorimetry and the Non-Constant Luminance Y’C’BC’R signal format, as
specified by ITU-R BT.2100.
- At least one of the 7680×4320 HDMI inputs shall support HDCP v2.2 or equivalent
Regarding Bit Depth — “An 8K Ultra HD display will have the capability to receive 10-bit 8K images and render an image that shows responsiveness to changes to any of the 10 bits. The exact manner of processing is not specified.”
In addition, an 8K display must be capable of upscaling SD, HD and 4K video and displaying it at 8K display resolution or better.
According to the CTA 2019 forecasts and outlook data, approximately 175,000 8K TV units are expected to ship in the United States this year.
“This 8K Ultra HD definition is the product of our Video Division Board’s dedication and hard work. As a result, retailers and consumers will know products that carry the accompanying logo deliver 8K UHD quality and performance,” stated Gary Shapiro, president & CEO, CTA.
By Greg Tarr
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