Screen and keyboard of laptop designed within a limited distance and we can only adjust the angle but not the height of the screen caused us a problem, unless we get some help from other equipment, we need to low our head down to see the screen. While we post our arms and hands to a comfortable posture, we can only crouched like a bow. If we block up our laptop to the line of sight, we need to raise our arms and hands up to type, thus cause ache and uncomfortable feeling.

While working with our laptop, we hope to keep our head and neck to a comfort posture, and at the same time does not cause ache or uncomfortable feeling to our arms and hands. In fact, we can not achieve both of the two hopes simultaneously. During 20 years of development and use of laptop, developers and users have no doubts with the layout of screen and keyboard of laptops and acquiesce in the layout been reasonable.

Laptop users such as software engineers, computer game fancier, office-men and office-ladies after using laptop for one or two years, unless they have already known the defects of laptop and paid attention to them, 35% of laptop users may suffer from hunchback.

Apart from this, the most perilous threat to laptop users is Arthritis of the Neck. In regular, for physiologic reasons, vertebral column has some radian in each segment, we call it physiological curve. The usage of physiological curve is to increase elasticity of cervical vertebra, decrease and amortize shakes while we are walk or jumping to avoid hurt to our brain. Bend or hang head down to work for a long time may cause the vertebral column's physiological curve become straight, then blood vessel and nerve around will be pressed, thus cause Arthritis of the Neck.

With the increase of laptop users, number of people who sicken back pain or arthritis of the neck is raised up day by day.

Doctor's suggestion is that for children, office workers and who work with laptop everyday would adjust their posture to backwards 120°and to buy a comfortable chair, keep eyesight straight ahead while reading or seeing the laptop screen so as to protect our neck and vertebral column.

Easy as former suggestion, what can laptop users do?

The answer is we can block our laptop up to the line our eyesight. For example, to place some books under the laptop then use a keyboard and mouse to operate the computer. The limitation or defect of this method is that it is not portable and not so beautiful. So we need another solution……