I have experience designing trade show displays and banners. I can tell you the most important thing to keep in mind is that a trade show banner is like a billboard, not a brochure.
At a trade show or conference there is typically hundreds of people if not thousands. There are also many exhibitors that you are trying to stand out among. When people are walking the show, being bombarded with displays and give aways, your display should be one that is memorable and should entice the attendees to come to your booth.
This example you’ve posted has too much text. No one is going to read all of that text as they are walking by your booth. Another thing, it is standard at many trade shows that the companies exhibiting have several of their employees man their booths. This means you have people standing in front of these banners at all times making it even more difficult to read all of those lines of text (especially the information at the bottom of the banner).
I think you need to go back to the drawing board on this one. Try not to be so wordy. Use larger imagery and simplify your message. Remember, think billboard!