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Method and display device for reducing electromagnetic interference of digital display interface

A digital display and display device technology, applied in the field of display communication, can solve the problems of increasing the cost of wire materials, reducing the signal amplitude of digital display interface, reducing the compatibility of digital display interface, etc., achieving the effect of reducing electromagnetic interference and not affecting compatibility

Active Publication Date: 2021-08-10
AMOLOGIC (SHANGHAI) CO LTD
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Problems solved by technology

[0003] The signal frequency of the existing typical V-by-One interface is 2.97GHz. However, the problem of electromagnetic interference generated by the V-by-One digital display interface at this signal frequency is difficult to solve. The existing technology often uses shielding performance Better shielded wires to reduce electromagnetic interference, but this will increase the cost of wires; or reduce the signal amplitude and rising edge of the digital display interface, but this will reduce the compatibility of the digital display interface

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  • Method and display device for reducing electromagnetic interference of digital display interface
  • Method and display device for reducing electromagnetic interference of digital display interface

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] In a preferred embodiment, a method for reducing electromagnetic interference of a digital display interface is proposed, and a digital display interface is provided, wherein the digital display interface is a V-by-One interface, and the signal of the V-by-One interface The frequency is 3.00-3.12GHz.

[0017] Among the above technical solutions, such as figure 2 As shown, the anti-electromagnetic interference test standard is that it is required to be lower than 50dB (uV / m) in the range of 1-3GHz, and it is required to be lower than 54dB in the range of 3-6GHz. Because the signal frequency of the existing V-by-One interface is generally 2.97GHz, the signal frequency of the V-by-One interface is increased (or reduced) to the range of 3.00~3.12GHz in the present invention, thereby improving the V-by- The ability of the One interface to resist el...

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Abstract

The present invention relates to display communication technology, in particular to a method for reducing electromagnetic interference of a digital display interface, providing a digital display interface, wherein the digital display interface is a V-by-One interface, and the signal frequency of the V-by-One interface is 3.00~3.12GHz; and a display device, including a display screen and a decoding board, the decoding board is connected to the display screen through a digital display interface, and the digital display interface adopts the method for reducing electromagnetic interference of the digital display interface as above; the above technical solution can reduce The electromagnetic interference brought by the digital display interface improves the compatibility of the digital display interface.

Description

technical field [0001] The invention relates to display communication technology, in particular to a method for reducing electromagnetic interference of a digital display interface and a display device. Background technique [0002] With the rapid development of display technology today, technicians have developed digital interface standards for image transmission, such as the V-by-One digital interface standard, which uses a pair of cables to transmit high-quality images. The maximum transmission speed can reach 3.75Gbps / sec. Using V-by-One as the display interface can greatly reduce the wiring on the printed circuit board and reduce the size of the printed circuit board. [0003] The signal frequency of the existing typical V-by-One interface is 2.97GHz. However, the problem of electromagnetic interference generated by the V-by-One digital display interface at this signal frequency is difficult to solve. The existing technology often uses shielding performance Better shie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/21H04N5/44
CPCH04N5/21H04N5/44
Inventor 黄敏军陈晨光何曾肖运娟王政许传亭张坤
Owner AMOLOGIC (SHANGHAI) CO LTD
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