Button structure and display device having button structure

A button structure which is detachably installed to an electronic device, wherein the button structure comprises:

• a housing having a reception space and a connection structure, the housing being detachably connected to the electronic device through the connection structure, the housing having an installation surface which is to be docked to the electronic device, the installation surface being provided with a cable hole which communicates with the reception space, the electronic device being provided with a hole corresponding to the cable hole;
• a function control substrate provided within the reception space and connected with a cable, the cable extending into the electronic device via the cable hole and the hole and connected to an electronic element inside the electronic device;
• a mechanical button provided on the function control substrate and exposed through a button hole provided in the housing;
• and
• a remote control module provided on the function control substrate so as to receive a remote control signal.