Data processing device, operation mode switching method and data displaying method thereof

A method for switching an operation mode of a data processing device having a screen supporting a multi-touch control function, characterized in that, the method comprises:

• obtaining a switching instruction;
• and
• switching the data processing device to a first operation mode or a second operation mode based on the switching instruction, wherein the second operation mode is different from the first operation mode, and in the second operation mode, the screen has at least two display areas, and a display direction in which content is displayed in the at least two display areas is changed under control of a display direction control instruction generated by the data processing device,
• said obtaining the switching instruction comprises:
• detecting whether a value of an angle between the data processing device and a plane in which the data processing device is placed is adjusted from a first angle value to a second angle value;
• judging whether an operation mode corresponding to the second angle value is the same as an operation mode corresponding to the first angle value;
• and
• generating the switching instruction when the operation mode corresponding to the second angle value is different from the operation mode corresponding to the first angle value.

A data processing device,

• wherein an operation mode of the data processing device comprises:
• a first operation mode where an angle between the data processing device and a plane in which the data processing device is placed is within a first angle range;
• and a second operation mode where the angle between the data processing device and the plane in which the data processing device is placed is within a second angle range, wherein the second operation mode is different from the first operation mode, and the second operation mode is an operation mode where at least two users simultaneously operate different applications or a mode where at least three users simultaneously operate the same application, the same application supporting the at least three users' simultaneous operations, and wherein any angle value within the first angle range is larger than any angle value within the second angle range,
• characterized in that, the data processing device comprises:
• a display comprising a screen having a multi-touch control function, and a case for accommodating and fixing the screen, the case having a back surface;
• an angle adjustment structure comprising a rotating structure arranged on the back surface, and a supporting structure one end of which is connected to the rotating structure, wherein the supporting structure cooperates with the rotating structure so that an angle between the data processing device and a plane in which the data processing device is placed can be changed;
• an angle detector configured to detect whether a value of the angle between the data processing device and the plane in which the data processing device is placed is adjusted from a first angle value to a second angle value;
• a main board arranged in the case;
• a first processing chip arranged on the main board and configured to judge whether an operation mode corresponding to the second angle value is the same as an operation mode corresponding to the first angle value, when the value of the angle between the data processing device and the plane in which the data processing device is placed is adjusted from the first angle value to the second angle value;
• a second processing chip arranged on the main board and configured to generate a switching instruction for switching the operation mode when the operation mode corresponding to the second angle value is different from the operation mode corresponding to the first angle value;
• and
• a third processing chip arranged on the main board and configured to switch the operation mode of the data processing device from the operation mode corresponding to the first angle value to the operation mode corresponding to the second angle value based on the switching instruction, wherein the operation mode corresponding to the second angle value is the first operation mode or the second operation mode,
• wherein the first processing chip, the second processing chip, and the third processing chip are the same chip, or individual chips separately arranged on the main board.