Near-field communications system and related display device thereof

Abstract

The invention relates to a near-field communication system and a display device related to the near-field communication system. The near-field communication system comprises a display panel, a host computer, a plurality of radio-frequency modules which are coupled to the host computer, a plurality of antennas and a near-field communication device, wherein the antennas are arranged on the rear of the display panel, and each antenna is coupled to one radio-frequency module; and the near-field communication device is sensed and coupled to a first antenna among the antennas, so as to perform near-field communication. Compared with the prior art, the near-field communication system can improve the wireless communication quality and achieve the efficiency of multitask.

Description

technical field [0001] The present invention relates to a near field communication, especially a near field communication system with a plurality of antennas and a related display device. Background technique [0002] Near-field communication technology is used in short-distance wireless communication, and has been widely used in daily life. For example, non-contact (contact-less) inductive radio frequency identification (Radio Frequency Identification, referred to as RFID) card has been applied in Among public transport tickets and credit card transactions. NFC technology utilizes inductive coupling for data transmission. Take passive (that is, no power source) RFID card or RFID tag (tag) as an example. Both the RFID card and the card reader have coil antennas inside. The card reader generates an AC magnetic field through its coil antenna, and the coil antenna of the RFID card induces this AC magnetic field to generate electricity for the internal circuit operation of the ...

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Problems solved by technology

However, this will also cause mutual interference between the electronic components in the touch display panel 11 and the near field communication, thereby affecting the quality of display and wireless communication.

On the other hand, since the ratio of the area of ​​the antenna in the mobile phone 15, 16 to the area of ​​the antenna 12 is relatively smaller, the coupling coefficient (coupling coefficient) becomes smaller accordingly, which will also affect the communication quality.

[0005] In addition, in the above application, if there are multiple mobile phones or RFID cards to communicate via the host computer 14 at the same time, since the host computer 14 can only communicate with these mobile phones or RFID cards through one antenna 12, it is difficult to achieve multi-tasking efficiency.

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