Patent attributes
The present invention relates to a smart phone case combination keyboard for the blind that includes: a cover main body having a mounting space to which a smart phone is mounted so as to expose a display unit on an upper surface, a plurality of lower key holes formed toward downward on a lower surface, and a front key hole respectively formed on a left and right of a surface toward frontward; a keyboard cover embedded in the main body, having a plurality of keys respectively protruded through the lower key holes and operated by a thumb of a hand gripping the cover main body as a first front key and a second front key are protruded through each of the front key holes; a communication module performing communication between the smart phone and the keyboard; and a controller that controls to perform pairing with the smart phone through the communication module and to transmit a key input signal of the keyboard to the smart phone through the communication by the communication module. According to the present invention, the smart phone may be stably gripped and the stable typing enable due to the keyboard arrangement on the lower surface while protecting the smart phone from external impact, and it is possible to provide the call mode along with the keyboard arrangement to enable the convenient use of the blind and improve the speed and accuracy of the typing through the use of the thumb that is not normally used for the typing, the unwanted separation may be prevented by the comfortable and stable gripping.
