What is HDMI certification?

HDMI: (High Definition Multimedia Interface) is a digital video/audio interface technology. In April 2002,

seven companies, Hitachi, Panasonic, Philips, Silicon Image, Sony, Thomson and Toshiba, jointly established

the HDMI Ultra clear Multimedia Interface Organization (HDMI Association). On December 9 of the same year,

HDMI version 1.0 standard was officially released, marking that HDMI technology has officially entered the

historical stage. It has been updated to 2.1 standard. If an enterprise wants to use HDMI patented technology

and logo, it must obtain the authorization of HDMI Association, that is, HDMI certification. HDMI Association

certification adopts the HDMI certification mode of membership, compliance testing, and payment of copyright

tax. All association members who produce HDMI lines or add HDMI interfaces must pay corresponding fees in

the corresponding procedures, such as membership fees, test fees, and royalties (i.e., copyright taxes). The fees

are different for different product categories. The HDMI membership fee is an annual fee, which is continuously

paid to maintain the validity of membership, while the HDMI test fee is used for compliance verification, and the

royalty is used to defend the copyright.

Why HDMI certification?

HDMI can transmit uncompressed high fidelity signals on a single cable. Since the HDMI data bandwidth is about

5Gbps, the requirements for transmission quality are quite strict, so HDMI certification ensures the communication

quality of products. Products that have obtained HDMI legal certification can ensure the quality and standardization

of transmission signals. In addition, HDMI belongs to compulsory patent certification. If customer uses HDMI

technology (using HDMI interface), it means that the product uses HDMI patented technology, and it can only be

used after applying to the HDMI Association for certification authorization. Otherwise, it will be considered as an

infringement. In order to prevent infringement, the HDMI Association has set up a market supervision department,

which is divided into two parts: first, market spot check, that is, random spot check of HDMI products in the market,

Check whether there is HDMI certification; The second is to set up a supervision department at the customs.

If HDMI products need to be cleared, HDMI certification must be provided, otherwise they will not be released

(which is why many customers will be detained by the customs);

How to query HDMI Association members?

Step 1: Open the website of HDMI Association: http://www.hdmi.org/index.aspx

Step 2: Select and click Resoures to enter the search page, as shown below:

Step 3: Select and click List of HDMI Adopters to enter the viewing page

Step 4: Find the company you want to find in alphabetical order

Our Company has been a member of the HDMI Association for many years

and is also a manufacturer of high-quality 4K/8K HDMI Cable