Abstract: A display driving circuit is provided. The display driving circuit includes a timing controller configured to output image data and a source control signal, a first source driver circuit configured to output first source data of the image data by activating a plurality of first data lines in accordance with the source control signal, the first data lines having a first output spreading time, a second source driver circuit configured to output second source data of the image data by activating a plurality of second data lines in accordance with the source control signal, the second data lines having a second output spreading time, and a third source driver circuit configured to output third source data of the image data by activating a plurality of third data lines in accordance with the source control signal, the third data lines having a third output spreading time, wherein the first output spreading time, the second output spreading time and the third output spreading time do not overlap.

Abstract: A face information registration method performed by a terminal may comprise: acquiring customer information corresponding to a user; extracting biometric feature data from a face image of the user; acquiring card information of the user; requesting user registration while mapping the customer information, the biometric feature data, and the card information and transmitting same to an authentication server; and in response to successful registration of the customer information, the biometric feature data, and the card information in the authentication server, receiving a result of the registration from the authentication sever.