DISPLAY TERMINAL DEVICE CONNECTABLE TO EXTERNAL DISPLAY DEVICE AND METHOD THEREFOR

• US 20140028719A1
• Filed: 07/09/2013
• Published: 01/30/2014
• Est. Priority Date: 07/30/2012
• Status: Active Grant

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: HIROTANI, Takayuki
• Granted Patent: US 9,582,903 B2
• Time in Patent Office: Days
• US Class Current: 345/634
• CPC Class Codes: G06F 2203/0383 Remote input, i.e. interface arrangements in which the signals generated by a pointing device are transmitted to a PC at a remote location, e.g. to a PC in a LAN
• CPC Class Codes: G06F 2203/04801 Cursor retrieval aid, i.e. visual aspect modification, blinking, colour changes, enlargement or other visual cues, for helping user do find the cursor in graphical user interfaces
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation

Abstract

The present invention is to maintain the viewability of display without impairing operability on a terminal side, even when the details of a touch operation performed on a display terminal device are transmitted to an external display device for display. In the present invention, when a touch operation is detected in an external transmission mode, the display terminal device generates details of a composite screen obtained by superimposing operation information (operation icon or animation image) indicating details of the touch operation on contents being displayed on the display screen (terminal screen), and transmits the contents of the composite screen to the external display device so as to change display contents on the external display device (display contents on its screen).

Claims

1. A display terminal, device to which an external display device is connectable, comprising:

a detecting section which detects a touch operation on a display screen;

a judging section which judges whether an external transmission mode for transmitting contents being displayed on the display screen to the external display device has been set;

a superimposing section which, when the judging section judges that the external transmission mode has been set and the detecting section detects a touch operation, generates contents of a composite screen obtained by superimposing operation information indicating details of the touch operation on the contents being displayed on the display screen; and

a display control section which changes display contents on the external display device by transmitting the contents of the composite screen generated by the superimposing section to the external display device.

2. The display terminal device according to claim 1, further comprising:

a transmitting section which transmits the contents being displayed on the display screen to the external display device on condition that the external display device has been connected, when the judging section judges that the external transmission mode has been set.

3. The display terminal device according to claim 1, further comprising

a time measuring section which measures time elapsed from transmission of the contents of the composite screen generated by the superimposing section to the external display device,

wherein the display control section transmits the contents being displayed on the display screen to the external display device when the time measuring section detects a lapse of a predetermined time.

4. The display terminal device according to claim 1, wherein the detecting section detects at least one of a touch operation indicating a point on the display screen, a touch operation for instructing change of the contents being displayed on the display screen, and a touch operation for instructing input of a command or data.

5. The display terminal device according to claim 1, wherein the superimposing section superimposes, when a touch operation indicating a point on the display screen is performed as the details of the touch operation, an icon indicating the point on the contents being displayed on the display screen;

superimposes, when a touch operation for instructing change of the contents being displayed on the display screen is performed as the details of the touch operation, an animation image indicating type of the change on the contents being displayed on the display screen; and

superimposes, when a touch operation for instructing input of a command or data is performed as the details of the touch operation, an animation image indicating type of the input on the contents being displayed on the display screen.

6. A display terminal device to which an external display device is connectable, comprising:

a detecting section which detects a touch operation on a display screen;

a judging section which judges whether the external display device has been connected;

a superimposing section which, when the judging section judges that the external display device has been connected and the detecting section detects a touch operation, generates contents of a composite screen obtained by superimposing details of the touch operation on contents being displayed on the display screen; and

a display control section which changes display contents on the external display device by transmitting the contents of the composite screen generated by the superimposing section to the external display device.

7. The display terminal device according to claim 6, further comprising:

a transmitting section which, when the judging section judges that the external display device has been connected, transmits the contents being displayed on the display screen to the external display device on condition that the connected external display device is a predetermined device.

8. The display terminal device according to claim 6, further comprising;

a time measuring section which measures time elapsed from transmission of the contents of the composite screen generated by the superimposing section to the external display device,

wherein the display control section transmits the contents being displayed on the display screen to the external display device when the time measuring section detects a lapse of a predetermined time.

9. The display terminal device according to claim 6, wherein the detecting section detects at least one of a touch operation indicating a point on the display screen, a touch operation for instructing change, of the contents being displayed on the display screen, and a touch operation for instructing input of a command or data.

10. The display terminal device according to claim 6, wherein the superimposing section superimposes, when a touch operation indicating a point on the display screen is performed as the details of the touch operation, an icon indicating the point on the contents being displayed on the display screen;

superimposes, when a touch operation for instructing change of the contents being displayed on the display screen is performed as the details of the touch operation, an animation image indicating type of the change on the contents being displayed on the display screen; and

superimposes, when a touch operation for instructing input of a command or data is performed as the details of the touch operation, an animation image indicating type of the input on the contents being displayed on the display screen.

11. A method for a display terminal device to which an external display device is connectable, comprising

a detecting step of detecting a touch operation on a display screen;

a judging step of judging whether an external transmission mode for transmitting contents being displayed on the display screen to the external display device has been set;

a superimposing step of, when a judgment is made in the judging step that the external transmission mode has been set and a touch operation is detected in the detecting step, generating contents of a composite screen obtained by superimposing operation information indicating details of the touch operation on the contents being displayed on the display screen; and

a display controlling step of changing display contents on the external display device by transmitting the contents of the composite screen generated in the superimposing step to the external display device.

12. A method for a display terminal device to which an external display device is connectable, comprising:

a detecting step of detecting a touch operation on a display screen;

a judging step of judging whether the external display device has been connected;

a superimposing step of, when a judgment is made in the judging step that the external display device has been connected and a touch operation is detected in the detecting step, generating contents of a composite screen obtained by superimposing details of the touch operation on contents being displayed on the display screen; and

a display controlling step of changing display contents on the external display device by transmitting the contents of the composite screen generated in the superimposing step to the external display device.