Display device and display device control method

The present disclosure relates to a display device and a display device control method, applied to the technical field of smart televisions, the display device comprising: a controller configured to: receive a target sound signal; detecting whether the target sound signal comprises voiceprint information of a user or not; under the condition that the target sound signal comprises the voiceprint information of the user, acquiring the voiceprint information of the user in the target sound signal to obtain target voiceprint information; determining a target age group to which the target voiceprint information belongs from a plurality of preset age groups based on the target voiceprint information; determining a target playing parameter based on the target age group; and adjusting the playing parameter of the display device based on the target playing parameter. The playing parameters of the display device can be intelligently adjusted according to the age group of the user. 本公开涉及一种显示设备和显示设备控制方法，应用于智能电视技术领域，该显示设备