Smart phone case combination keyboard for blind

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 ...