The stickers, which were on the back of the helmets, said "AL'' in silver letters over the black Raiders shield.
Davis died Saturday at his home in Oakland, Calif. He was 82.
The Raiders and Texans also observed a moment of silence for Davis before the game.
The teams and fans paused for the moment while a short video of Davis has shown on the Jumbotron. Most Raiders players kept their heads down and a few clasped hands as the video was shown.
The Raiders won three Super Bowls for their Hall of Fame owner.
NFL Commissioner Roger Goodell said before the Bills game against the Eagles that a moment of silence would be held before every game this weekend.
``He really was a legend of the game,'' Goodell said. ``There's not many people who had the kind of impact on the game. He was a commissioner, he was an owner, he was a coach, he was a general manager, and he was passionate about the game of football. He loved the NFL as much as anybody I know.''
Former Oakland coach Tom Flores, in Houston as part of the Raiders' radio broadcast, reflected on his time working for Davis. Flores said Davis always embraced the renegade image that was cultivated in his long and storied career.
``He wanted to be that maverick,'' Flores said. ``He was always that 'me against the world' type of guy. He was a tough guy to work for. I worked for him for a long time. But he also worked with you. When John (Madden) and I coached with him for 19 years, we won
three Super Bowls for him. He demanded a lot, but he also demanded a lot from himself. It was his life, and his passion. He expected you to have the same kind of love and passion for the game, and for this team, that he did.''
An image of Davis in his trademark white jump suit was shown on the video boards during the moment of silence at Seattle's game at the New York Giants, the Titans game at Pittsburgh and the Saints game at Carolina.
Jim Plunkett, who won two Super Bowls with the Raiders, remembered when Davis would be at almost every practice yelling encouragement and keeping players on their toes. As Davis got older, he wasn't able to be with the team as much, but that didn't
change his feelings for the Raiders.
``He never lost his love and his fire for the game,'' Plunkett said. ``Just sitting in the box with him, even though he couldn't speak loudly, this year, he'd get his point across, telling everyone that they shouldn't have done this or they should've done that. He wasn't yelling anymore. But he was still into it.''