Display apparatus

• US 10,140,949 B2
• Filed: 12/27/2016
• Issued: 11/27/2018
• Est. Priority Date: 07/05/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Seo, Hae-kwan
• Primary Examiner(s): Khan, Ibrahim A
• Application Number:
  US15/391,047
• Publication Number:
  US 20180012558A1
• Time in Patent Office: 700 Days
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 3/2092 Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A display apparatus includes a printed circuit board including a transmission control unit for outputting input image data, a wireless data generating unit for converting the input image data to a data transmission signal, and a wireless transmission pad unit for wirelessly transmitting the data transmission signal as wireless data, and a display panel having a wireless reception pad unit which is coupled to the wireless transmission pad unit and wirelessly receives the wireless data to output a data reception signal, and a wireless data restoring unit for converting the data reception signal to restored image data.

Claims

1. A display apparatus comprising:

a printed circuit board including;

a base circuit board;

a transmission control unit which outputs input image data,

a wireless data generating unit which converts the input image data to a data transmission signal,

a wireless transmission pad unit which wirelessly transmits the data transmission signal as wireless data and is disposed on a bottom surface of the base circuit board; and

a circuit device disposed on a top surface of the based circuit board;

and

a display panel including;

a panel substrate;

a wireless reception pad unit which is coupled to the wireless transmission pad unit, and wirelessly receives the wireless data to output a data reception signal,

a wireless data restoring unit which converts the data reception signal to restored image data; and

,

a data driver disposed on a top surface of the panel substrate and converts the restored image data to a data voltage,

wherein the data driver is inserted into an opening defined at the printed circuit board.

2. The display apparatus of claim 1, wherein the wireless reception pad unit overlaps the wireless transmission pad unit in a thickness direction.

3. The display apparatus of claim 1, wherein

a pixel which receives the data voltage.

4. The display apparatus of claim 1, further comprising a transmission determination unit which detects, as the data transmission signal is provided, a pad current which flows at the wireless transmission pad unit or a pad voltage applied at the wireless transmission pad unit, and determines whether the wireless data is wirelessly transmitted based on the pad current or the pad voltage.

5. The display apparatus of claim 4, wherein, when the wireless data is not transmitted wirelessly, the transmission determination unit outputs a retransmission signal to the transmission control unit and the wireless transmission pad unit retransmits the wireless data to the wireless reception pad unit.

6. The display apparatus of claim 5, wherein the transmission control unit retransmits the input image data based on the retransmission signal, and the wireless data generating unit converts the retransmitted input image data to the data transmission signal.

7. The display apparatus of claim 1, wherein the display panel further includes a coupling adjusting circuit which controls a resonant frequency of the wireless reception pad unit and adjusts a coupling between the wireless reception pad unit and the wireless transmission pad unit.

8. The display apparatus of claim 1, wherein

the printed circuit board further includes a wireless power generating unit which converts an input power to a transmitted power, wherein the wireless transmission pad unit wirelessly transmits the transmitted power as a wireless power, and the wireless reception pad unit wirelessly receives the wireless power to output a received power, and

the display panel further includes a wireless power restoring unit which converts the received power to a restored power.

9. The display apparatus of claim 8, wherein

the wireless transmission pad unit comprises a data transmission pad which wirelessly transmits the wireless data and a power transmission pad which wirelessly transmits the wireless power, and

the wireless reception pad unit comprises a data reception pad which is coupled to the data transmission pad and wirelessly receives the wireless data, and a power reception pad which is coupled to the power transmission pad and wirelessly receives the wireless power.

10. The display apparatus of claim 1, wherein

the wireless transmission pad unit comprises a plurality of transmission pads arranged in one direction, and

the wireless reception pad unit comprises a plurality of reception pads arranged in the one direction,

wherein the plurality of transmission pads respectively overlap the plurality of reception pads in a thickness direction, and are respectively coupled to the plurality of reception pads.

11. The display apparatus of claim 10, wherein each of the plurality of transmission pads comprises a transmission coil, and each of the plurality of reception pads comprises a reception coil, wherein the transmission coil induces an induced current in the reception coil.

12. The display apparatus of claim 10, wherein each of the plurality of transmission pads comprises a transmission electrode, and each of the plurality of reception pads comprises a reception electrode, wherein the transmission electrode induces an induced voltage in the reception electrode.

13. The display apparatus of claim 1, wherein a distance between the base circuit board and the panel substrate in a thickness direction is less than a thickness of the data driver.

14. The display apparatus of claim 1, wherein the wireless reception pad unit is embedded in the data driver.

15. The display apparatus of claim 1, wherein

the display panel further includes a display area which displays an image and a first non-display area spaced apart from the display area in a first direction,

the wireless reception pad unit comprises a plurality of first reception pads disposed in the first non-display area and arranged in a second direction different from the first direction, and

the wireless transmission pad unit comprises a plurality of first transmission pads respectively overlapping the plurality of first reception pads in a thickness direction.

16. The display apparatus of claim 15, wherein

the display panel further includes a second non-display area spaced apart from the display area in the second direction,

the wireless reception pad unit further comprises a plurality of second reception pads disposed in the second non-display area and arranged in the first direction, and

the wireless transmission pad unit further comprises a plurality of second transmission pads respectively overlapping the plurality of second reception pads in the thickness direction.

17. The display apparatus of claim 15, wherein the display panel further includes a pixel including a transistor including a source electrode and a gate electrode, wherein the wireless reception pad unit is disposed in the same layer as that in which the source electrode or the gate electrode of the transistor of the pixel is disposed.

18. A display apparatus comprising:

a printed circuit board including;

a base circuit board; and

a wireless transmission pad unit disposed on one of an upper surface and a lower surface of the base circuit board and comprising a plurality of first transmission pads and a plurality of second transmission pads, and

a display panel which is opposite to the printed circuit board and includes;

a panel substrate including a display area which displays an image, and a first non-display area and a second non-display area spaced apart from the display area in a first direction and in a second direction different from the first direction, respectively;

a wireless reception pad unit which is disposed on one of an upper surface and a lower surface of the panel substrate, overlaps the wireless transmission pad unit and includes a plurality of first reception pads disposed in the first non-display area and arranged in the second direction and a plurality of second reception pads disposed in the second non-display area and arranged in the first direction,

wherein the first transmission pads and the second transmission pads overlap the first reception pads and the second reception pads in a thickness direction, respectively.

19. The display apparatus of claim 18 wherein:

the printed circuit board further includes a circuit device disposed on one of the upper surface and the lower surface of the base circuit board, and

the display panel further includes a data driver disposed on one of the upper surface and the lower surface of the panel substrate.