Mobile terminal, image display device mounted on vehicle and data processing method using the same

• US 9,116,658 B2
• Filed: 04/04/2012
• Issued: 08/25/2015
• Est. Priority Date: 08/25/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jungwoo, Choi, Sungha, Park, Jihwan
• Primary Examiner(s): Faulk, Devona
• Assistant Examiner(s): Ge, Jin
• Application Number:
  US13/439,275
• Publication Number:
  US 20130050271A1
• Time in Patent Office: 1,238 Days
• Field of Search: 345/660
• US Class Current: 1/1
• 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: G06F 3/147 using display panels
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG
• CPC Class Codes: G09G 2350/00 Solving problems of bandwidth in display systems
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2360/18 Use of a frame buffer in a display terminal, inclusive of the display panel
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: G09G 2380/10 Automotive applications
• CPC Class Codes: H04L 67/08 specially adapted for terminal emulation, e.g. Telnet

Abstract

A mobile terminal including a display unit outputting an image, a communication unit transceiving data with an external mobile terminal, and a controller controlling the communication unit to receive a screen information of the mobile terminal and a 1^st control information of the screen information from the mobile terminal and to transmit a 2^nd control information of the screen information to the mobile terminal, the controller controlling the display unit to transform the 1^st control information of the screen information and to output the transformed screen information to a user. The 1^st control information includes an image size transformation information of the screen information and an image compression format information of the screen information. The 2^nd control information includes a supportable compression format information.

Claims

1. An image display device mounted on a vehicle, the image display device comprising:

a communication unit configured to receive screen information of a mobile terminal and first control information of the screen information from the mobile terminal, the first control information includes an image size transformation information of the screen information and an image compression format information of the screen information;

a controller configured to transform the screen information based on the first control information; and

a display unit configured to output the transformed screen information, wherein the transformed screen information comprises a shared screen between the image display device and the mobile terminal,

wherein the controller is further configured to;

modify the image size transformation information and the image compression format information based a status of a screen change, and

control the communication unit to transmit second control information including the modified image size transformation information and the modified image compression format information,

wherein the modified image size transformation information and the modified image compression format information are adjusted based on a performance status of the image display device or the mobile terminal,

wherein the screen information is changed into a pixel format having a low color depth based on receiving a user input, and

wherein the screen information is changed into a pixel format having a high color depth while displaying a still image.

2. The image display device of claim 1, wherein the communication unit is further configured to receive the first control information, which is modified by the mobile terminal based on the second control information.

3. The image display device of claim 1, wherein the second control information further comprises a supportable encoding type information and a supportable compression format information.

4. The image display device of claim 1, wherein the second control information further comprises an information of a first frame buffer included in the image display device mounted on the vehicle.

5. The image display device of claim 1, wherein the image size transformation information comprises multiple information of an image size of the screen information.

6. The image display device of claim 1, wherein the controller is further configured to receive the screen information generated from a second frame buffer included in the mobile terminal.

7. The image display device of claim 6, wherein the second control information comprises an information for requesting the second frame buffer to update the screen information.

8. The image display device of claim 6, wherein the first control information comprises an information for notifying the second frame buffer that the screen information has been updated and an information of the updated second frame buffer.

9. The image display device of claim 1, wherein information on a screen direction change is transmitted from the mobile terminal to the image display device.

10. The image display device of claim 1, wherein information indicating that audio data is cut off is transmitted from the mobile terminal to the image display device.

11. The image display device of claim 1, wherein multiple information are transmitted from the mobile terminal to the image display device, and further the multiple information comprises information on an lock/unlock mode, screen saver mode and audio input mode.

12. A mobile terminal comprising:

a communication unit configured to transmit screen information of the mobile terminal and first control information of the screen information to an external image display device; and

a controller configured to control the communication unit to receive second control information of the screen information from the external image display device, wherein the screen information comprises a shared screen between the external image display device and the mobile terminal, and modify the first control information in accordance with the second control information,

wherein the first control information comprises an image size transformation information of the screen information and an image compression format information of the screen information,

wherein the second control information comprises modified image size transformation information and modified image compression format information based on a status of a screen change by the external image display device,

wherein the modified image size transformation information and the modified image compression format information are adjusted based on a performance status of the image display device or the mobile terminal,

wherein the screen information is changed into a pixel format having a low color depth based on receiving a user input, and

wherein the screen information is changed into a pixel format having a high color depth while displaying a still image.

13. The mobile terminal of claim 12, wherein the communication unit is further configured to transmit the first control information, which is modified by the mobile terminal based on the second control information.

14. The mobile terminal of claim 12, wherein the second control information further comprises an encoding type information supportable by the image display device and an information of a first frame buffer included in the image display device mounted on the vehicle.

15. The mobile terminal of claim 12, wherein the image size transformation information comprises multiple information of an image size of the screen information.

16. The mobile terminal of claim 12, wherein the controller is further configured to generate the screen information from a second frame buffer included in the mobile terminal.

17. The mobile terminal of claim 16, wherein the second control information comprises information for requesting the second frame buffer to update the screen information.

18. The mobile terminal of claim 16, wherein the first control information comprises information for notifying the second frame buffer that the screen information has been updated and information of the updated second frame buffer.

19. The mobile terminal of claim 12, wherein information on a screen direction change is transmitted from the mobile terminal to the image display device.

20. The mobile terminal of claim 12, wherein information indicating that audio data is cut off is transmitted from the mobile terminal to the image display device.

21. The mobile terminal of claim 12, wherein multiple information are transmitted from the mobile terminal to the image display device, and further the multiple information comprises information on an lock/unlock mode, screen saver mode and audio input mode.