A source driver and a common voltage driver for a display device using a time division driving method, in which the source driver outputs an analog voltage corresponding to digital image data to a corresponding source line out of a plurality of source lines, after precharging the corresponding source line with a predetermined voltage. The session transfer module is invoked by a user in a way consistent with the user interface of the client application, including by a graphical user command, a command line prompt, or a voice command. The testing service may obtain a test package provided by a user that requested the testing, such as from a cloud storage location.