Wireless LCD device for displaying images received from a mobile communication terminal and an operation method thereof

• US 20060077165A1
• Filed: 08/31/2005
• Published: 04/13/2006
• Est. Priority Date: 10/12/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Chang-Weon
• Application Number:
  US11/215,130
• Publication Number:
  US 20060077165A1
• Time in Patent Office: Days
• US Class Current: 345/97
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04N 21/4108 characterised by an identification number or address, e.g. local network address protecting specific internal or external computer components using identification number G06F21/73; network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence

Abstract

Disclosed is a wireless liquid crystal display (LCD) apparatus including a mobile communication terminal for establishing a link through which at least one wireless display device is linked to the mobile communication terminal, and transmitting image frames having image data to the linked wireless display device, wherein when receiving control frames for controlling the image frames from the wireless display device, the mobile communication terminal generates image frames based on the received control frames; and the wireless display device for receiving the image frames from the mobile communication terminal and displaying image data of the received image frames, if the wireless LCD apparatus is linked to the mobile communication terminal in response to a link setup request of the mobile communication terminal, wherein when receiving a user'"'"'s control command for controlling the image data, the wireless display device generates the control frames based on the received control command and transmits the generated control frames to the mobile communication terminal. The bidirectional communication can be performed between the mobile communication terminal and the wireless display device, whereby a variety of applications for controlling dynamic images can be realized.

Claims

1. A wireless liquid crystal display (LCD) apparatus comprising:

a mobile communication terminal for establishing a link through which at least one wireless display device is linked to the mobile communication terminal, and transmitting image frames having image data to the linked wireless display device, wherein when receiving control frames for controlling the image frames from the wireless display device, the mobile communication terminal generates image frames based on the received control frames; and

a wireless display device for receiving the image frames from the mobile communication terminal and displaying image data of the received image frames, if the wireless display device is linked to the mobile communication terminal in response to a link setup request of the mobile communication terminal, wherein when receiving a user'"'"'s control command for controlling the image data, the wireless display device generates the control frames based on the received control command and transmits the generated control frames to the mobile communication terminal.

2. The wireless LCD apparatus as claimed in claim 1, wherein the mobile communication terminal pre-registers at least one specific ID of the wireless display device, and if the user'"'"'s link setup request is received, transmits a link request frame having one of the specific IDs.

3. The wireless LCD apparatus as claimed in claim 1, wherein the wireless display device comprises:

a key input section for receiving image control commands;

a power source for supplying power to the wireless display device;

a LCD radio frequency (RF) module for receiving the image frames comprising the image data from the mobile communication terminal and transmitting the control frames comprising the image control data to the mobile communication terminal over a bi-directional communication link;

a displaying section for displaying the image data extracted from the received image frames; and

a controller receiving an image control command through the key input section, generating the control frame based on the received image control command, and transmitting the generated control frame to the mobile communication terminal through the LCD RF module.

4. The wireless LCD apparatus as claimed in claim 3, wherein when receiving the link request frame from the mobile communication terminal, the controller performs a control for transmitting a link request approval frame to the mobile communication terminal and establishing the link.

5. The wireless LCD apparatus as claimed in claim 4, wherein when receiving the link request frame, the controller reads out the specific ID of the received link request frame, and if the read-out specific ID matches the previously-stored specific ID, the controller transmits the link request approval frame to the mobile communication terminal through the LCD RF module.

6. The wireless LCD apparatus as claimed in claim 3, wherein when the image frame, which has been generated in the mobile communication terminal based on the control frame, is received in the LCD RF module, the controller performs a control for extracting the image data from the image frame and displaying the extracted image data on the display section.

7. The wireless LCD apparatus as claimed in claim 3, wherein the power source comprises a charging module for charging power supplied to the wireless display device.

8. The wireless LCD apparatus as claimed in claim 3, wherein the LCD RF module comprises:

a LCD synchronizer for synchronizing the wireless display device with the mobile communication terminal for RF communication;

a LCD encoder for adding headers and transmitting protocols to the control data to generate the control frames;

a LCD sending end for transmitting the control frames generated in the LCD encoder; and

a LCD receiving end for receiving the image frames from the mobile communication terminal; and

a LCD decoder for extracting the image data from the received image frames to decode the extracted image data.

9. The wireless LCD apparatus as claimed in claim 8, wherein the apparatus further comprises:

a LCD sending buffer for storing temporally therein the control frames generated in the LCD encoder and

a LCD receiving buffer for storing temporally therein the image frames received through the LCD receiving end.

10. The wireless LCD apparatus as claimed in claim 1, wherein the image frame comprises header sectors for storing therein basic information for wireless RF communication with the mobile communication terminal, and data sectors for storing therein the image data to be transmitted to the mobile communication terminal.

11. The wireless LCD apparatus as claimed in claim 1, wherein the control frame comprises header sectors for storing therein basic information for wireless RF communication, and data sectors for storing therein the control data generated by the user'"'"'s request.

12. The wireless LCD apparatus as claimed in claim 10, wherein the header sectors comprises a terminal ID comprising a specific ID of the mobile communication terminal, a LCD ID comprising a specific ID of the wireless display devices, and a communication protocol identifier for identifying the communication protocols.

13. The wireless LCD apparatus as claimed in claim 11, wherein the header sectors comprises a terminal ID comprising a specific ID of the mobile communication terminal, a LCD ID comprising a specific ID of the wireless display devices, and a communication protocol identifier for identifying the communication protocols.

14. A method for exchanging data in a mobile communication terminal between at least one a wireless display device apparatus and a mobile communication terminal, the method comprising the steps of:

registering each specific ID of said at least one wireless display device to the mobile communication terminal;

transmitting a link request frame comprising the specific ID over the wireless communication, if there is a user'"'"'s link setup request;

transmitting image frames comprising image data to the wireless display device, if a link request approval frame has been transmitted from a predetermined wireless display device having its own specific ID and a link has been set up based on the link request approval frame; and

generating an image frame based on a control frame and transmitting the generated image frame to the wireless display device, if the control frame for controlling the image frame has been transmitted from the wireless display device.

15. The method as claimed in claim 14, wherein the image frame comprises header sectors for storing therein basic information for wireless RF communication, and data sectors for storing therein the image data to be transmitted to the mobile communication terminal.

16. The method as claimed in claim 14, wherein the control frame comprises header sectors for storing therein basic information for wireless RF communication, and data sectors for storing therein the control data generated by the user'"'"'s request.

17. The method as claimed in claim 15, wherein the header sectors comprise a terminal ID comprising a specific ID of the mobile communication terminal, a LCD ID comprising a specific ID of the wireless display device, and a communication protocol identifier for identifying the communication protocols.

18. The method as claimed in claim 16, wherein the header sectors comprise a terminal ID comprising a specific ID of the mobile communication terminal, a LCD ID comprising a specific ID of the wireless display device, and a communication protocol identifier for identifying the communication protocols.

19. A method for exchanging data in the wireless display device which receives images from a predetermined mobile communication terminal and displays the received images thereon, the method comprising the steps of:

transmitting a frame for accepting a link request approval frame to the mobile communication terminal and establishing a link based on the link request approval frame, if a link request frame is received from the mobile communication terminal;

displaying image data included in a predetermined image frame, if the predetermined image frame is received from the mobile communication terminal to which the link has been established;

generating a control frame based on an image control command to transmit the generated control frame to the mobile communication terminal, if the image control command for controlling the image data is received; and

receiving, from the mobile communication terminal, the image frame which has been generated based on the control frame, and displaying an image data corresponding to the received image frame.

20. The method as claimed in claim 19, wherein the image frame comprises header sectors for storing therein basic information for wireless radio frequency (RF) communication with the mobile communication terminal, and data sectors for storing therein the image data to be transmitted to the mobile communication terminal.

21. The method as claimed in claim 19, wherein the control frame comprises header sectors for storing therein basic information for wireless radio frequency (RF) communication with the mobile communication terminal, and data sectors for storing therein the control data generated by the user'"'"'s request.

22. The method as claimed in claim 20, wherein the header sectors comprise a terminal ID comprising a specific ID of the mobile communication terminal, a liquid crystal display (LCD) ID comprising a specific ID of the wireless display device, and a communication protocol identifier for identifying the communication protocols.

23. The method as claimed in claim 21, wherein the header sectors comprise a terminal ID comprising a specific ID of the mobile communication terminal, a liquid crystal display (LCD) ID comprising a specific ID of the wireless display device, and a communication protocol identifier for identifying the communication protocols.

24. The method as claimed in claim 19, wherein the step of establishing the link based on the link request approval frame comprises the steps of:

reading out a specific ID of the link request frame, if the link request frame is received;

determining if the read-out specific ID matches a previously-stored specific ID; and

transmitting the link request approval frame to the mobile communication terminal, and establishing the link, if the read-out specific ID matches the previously-stored specific ID.