| To protect the phone touch of some experience to protect the phone keypad feel generally includes two aspects, 1: a high degree of coordination with the size to be reasonable, to prevent the emergence of technical problems, as much as possible to reduce the production problems in the future may be, see the following chart: 2: the appearance of the keyboard: if when the oval thumb and keyboard interface is generally a left and right direction slightly elliptic, the area falls in the rubber shell (at the top of the shell). Feel bad feeling. For these to improve the feel 1: to reduce the area of the contact ellipse 2: the contact surface of the fingers and the keyboard is try not to fall to exclude the factor of the size of the fingers of the user in the plastic shell outside, reduce the contact area can be the keyboard surface modeling is made into the center high, surrounded by low shape (a move that can reduce because finger according to corner button skew will force oriented dome in the center, and the handle was favorable), another can be the keyboard surface at the discretion of the heightening. In addition the keyboard surface size, not too small, even if is unilateral to too small (to avoid as much as possible about the direction of size is too small) Plastic shell with four holes around the appropriate angle, chamfer width of at least 0.7mm. , the front design of the phone keypad and the outer surface of the majority of the contact surface of the plane, and the design plane and the surface of the plastic shell flush, the total thickness of the keyboard can be achieved in the volume of production of + + 0.1mm. In order to prevent the keyboard card dead, no handle (a little plastic shell, PCB deformation will compression with space) and met flip on the lens; production usually keyboard total height to bias difference. Is the surface of the keyboard will be slightly sunken. If you are accompanied by other aspects of modeling problems (such as the size is too small), it is easy to feel bad. Modeling on the silicone keys to feel good shape for: 1: the contour near the oval (the best arrangement, convenient LED lamp can be avoided by the corner to feel bad) 2: the surface of the keyboard made the best center for high and low around the shape (plastic shell with holes when the chamfering) 3: a small keyboard to be higher than the plastic shell with the surface. |