For a smart TV, the most important addition to the design is the screen. The quality display is the most important. From this we can see the strength of smart TV manufacturers. In terms of image quality performance, TCL as a veteran TV manufacturer launched the new Internet brand Thunderbird TV's first surfaced Thunderbird I55C compared to LeTV Ultra 4, who is more advantageous? Dark screen plane light leakage Dark screen plane light leakage Smart quality - unique Thunderbird I55/I55C-UI Overview of picture quality Integrating the above dimensions, Thunderbird I55C carries the TCL's top domestic debugging capabilities in picture quality. It is indeed superior in picture quality performance and close to the user's needs. LeTV is only pursuing parameters, and is able to adjust the picture quality and image quality. There are deficiencies in technology and we need to continue our efforts. Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, etc. on TV boxes, smart TVs, smart TV software, etc. Answering questions.