The ADV7611 has a TTL output so any TTL to LVDS converter should work fine, such as the ADN4663 http://www.analog.com/en/interface-isolation/lvds/adn4663/products/product.html
The ADV7611 provides audio extraction and video decoding from the HDMI stream…
绵阳 青龙大道 做接口电路 关注ADN4663和ADN4664
If I understand correctly, you want to buffer the LVDS outputs from the FPGA in order to drive them across a longer distance?
What distance do you want to drive across, and at what clock/data speeds? What is at the receiving end?