城市快速路户外大屏样机绿幕界面图片

Large outdoor advertising signs along city expressways, with screens displaying pure green without shadows, making it easy to remove and replace content in post-production. Modern city road background with blue sky and white clouds, creating a grand and spacious atmosphere. The main subject is centered and occupies three-quarters of the screen, fully within the frame, 16:9 aspect ratio, realistic outdoor advertising photography style.