Protection film structure and protection film attachment-assisting structure

A protection film structure comprising:

• a protection film;
• and
• an auxiliary film in contact with a lower portion of the protection film,
• wherein,
• the auxiliary film includes an upper auxiliary film, a lower auxiliary film, a pulling member positioned between the upper auxiliary film and the lower auxiliary film, a first adhesive located between the pulling member and the upper auxiliary film, and a second adhesive located between the pulling member and the lower auxiliary film,
• the upper auxiliary film, the pulling member, and the lower auxiliary film are separated layers from each other and sequentially overlapped with each other,
• the first adhesive attaches one end of the upper auxiliary film to one end of the pulling member,
• the second adhesive attaches one end of the lower auxiliary film to one end of the pulling member,
• a pulling member knob portion is formed at the other end portion of the pulling member and is able to be pulled,
• the protection film is in contact with the upper auxiliary film,
• a protection film adhesive material is directly attached to a bottom surface of the protection film,
• the protection film adhesive material is located between the upper auxiliary film and the protection film,
• a lower adhesive material is directly attached to a bottom surface of the lower auxiliary film, and
• the protection film and the auxiliary film are configured such that when the pulling member knob portion is pulled in a state in which the lower auxiliary film is attached to the screen portion of the smart device, the protection film is attached to the screen portion simultaneously with the release of the lower auxiliary film while portions at which the upper auxiliary film and the lower auxiliary film are bonded and connected to each other being rolled in between the upper auxiliary film and the lower auxiliary film and dust on the screen portion is removed by the lower adhesive material.