DisplayPort Certification Test



    

      

      

About DisplayPort
 

DisplayPort (DP for short) is a digital video interface standard developed by the Video Electronics
Standards Association (VESA). It is mainly used for video and audio transmission between computers,
monitors, TVs and other devices. It is designed to replace traditional VGA, DVI and FPD-Link (LVDS)
interfaces to provide higher resolution, higher bandwidth and better audio transmission. It features
simultaneous transmission of video and voice and supports high-bandwidth digital content protection
(HDCP). Backward compatibility with legacy interfaces such as HDMI and DVI via active or passive
adapters




About VESA

VESA (Video Electronics Standards Association) is an American standards organization that
specializes in developing standards for video devices for computers and small workstations. Founded
in 1989, VESA's original purpose was to develop the SVGA video display standard with a resolution of
800x600. As time goes by, VESA has not only exerted influence in the field of PC displays, but also
expanded embedded display, vehicle display and other fields. It is important to promote DisplayPort
technology and define compliance testing (Compliance Test). VESA also holds regular PlugTest
conferences to enable members to conduct device compatibility testing.

 

DisplayPort 2.1 Certification Test




 

The main test items of DisplayPort 2.1 certification test are:

DisplayPort 2.1 UHBR Physical Layer Test
 

- Test the new UHBR (Ultra High Bit Rate) transmission mode in DisplayPort 2.1
- UHBR can increase the transmission bandwidth of a single Lane from the original 8.1 Gbps to 20 Gbps
- Testing includes signal quality at 10 Gbps, 13.5 Gbps and 20 Gbps

 

DisplayPort 2.1 Return Loss Test：
 

- Test Differential Return Loss and Common Mode Return Loss.
- The use of Enhanced Connector is critical to passing this test to ensure the quality of UHBR products

DisplayPort Certification Flow

 

Step1. Become A VESA Member 
 

First you need to become a member of VESA (Video Electronics Standards Association). You can check
whether your company is already a member on VESA's official website. Members can be OEM (original
equipment manufacturer) or brand manufacturers. You only need to choose one of the qualifications

Step2. Prepare Necessary Documents Before Testing
 

You need to prepare some documents, including:

CDF (Capability Declaration Form):
This form records the capabilities of your product and is a necessary document for testing

HDCP Form:
If your product supports HDCP1.x or HDCP2.x, you need to provide this file

Family Model list:
If your product has an extended model (Family Model), you need to provide the relevant application form

 

Step3. Conducting Test
 

DisplayPort certification testing covers many aspects, including electrical testing, Link Layer compatibility
testing, Multi-Stream (MST) functional testing, etc. Testing program ensures your product complies with
DisplayPort specifications

 

Step4. Product Certified
 

If your product passes certification testing, you will receive a congratulations letter from the certification.
You can choose to list your products on the VESA official website to showcase your certification results

 

Contact PAL

If you have related test demands, please feel free to contact with us, thanks!
service@pal-labs.com.tw