US Patent 11172116 Display apparatus, camera apparatus, and method

Implemented is a configuration in which camera identification information is displayed on an electric paper display unit such that the identification information can be confirmed during a power-off time. An electric paper display unit on which camera identification information is displayed, and a control unit that executes displaying upon receiving an input of identification information to be displayed or information for designating the identification information, are included. The control unit receives an input of the identification information or information for designating the identification from an external apparatus, an external memory, or an inner memory of the camera, and displays, on the electric paper display unit, the identification information or synthesized information including the identification information and additional information. Further, an electric paper display module includes a secure memory in which an option key for defining a process that is executable in the camera apparatus is stored.