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Video data transmission method and transmission device and driving device

A technology of video data and transmission method, which is applied in the fields of drive devices and transmission devices, can solve the problems of complex implementation and high cost, and achieve the effects of improving transmission efficiency, increasing refresh rate, and saving transmission time

Inactive Publication Date: 2018-01-19
CHIPONE TECH BEIJINGCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The obvious advantages of this solution are easy wiring, low cost, and the ability to use low-level data lines for backhaul. The disadvantage is that both the transmission device and the receiving device must use network port chips and network transformers, and the cost is high; and due to frequent protocol conversion, complicate the implementation
The interface chips of the above two schemes are realized by FPGA (Field-Programmable Gate Array, Field Programmable Gate Array), and the cost is relatively high

Method used

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  • Video data transmission method and transmission device and driving device
  • Video data transmission method and transmission device and driving device
  • Video data transmission method and transmission device and driving device

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Embodiment Construction

[0050] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown.

[0051] In this application, the term "image picture" is used to indicate the complete picture of the continuous frames displayed by the LED display screen according to the video data, and the term "sub-picture" is used for the partial picture of a part of the image picture. The LED display screen includes multiple cascaded receiving devices, which respectively display the sub-screens of the image screen to form a complete screen together.

[0052] figure 2 A schematic block diagram of a driving device for an LED display screen according to the first embodiment of the present invention is shown. The driving device 200 includes a transmi...

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Abstract

The present application discloses a video data transmission method and transmission device and a driving device. The transmission method comprises a step of receiving video data corresponding to an image screen by using a first clock frequency, a step of dividing the video data into multiple pieces of sub data, wherein each of the sub data represents display data of a partial area of the image screen, and a step of parallelly sending at least some sub data in the multiple pieces of sub data to an LED display screen by using a second clock frequency, wherein the second clock frequency is smaller than the first clock frequency. According to the transmission method, the video data is divided into the sub data to carry out frequency reduction transmission so as to reduce data transmission costand realize the long distance wire arrangement, and thus a large-size LED display can be conveniently assembled.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a transmission method, transmission device and driving device for video data of an LED display screen. Background technique [0002] The pixel elements of an LED display are light-emitting diodes (LEDs). LED display has the following advantages: high grayscale, wide viewing angle, rich colors and customizable screen shape. Therefore, LED displays are widely used in various fields such as industry, transportation, commercial advertising, information release, and sports competitions. [0003] figure 1 The driving device of the LED display screen in the prior art is shown. Such as figure 1 As shown, the driving device 100 includes a transmission device 110 and a plurality of receiving devices 120 . The transmission device 110 is used to receive video content from the host computer with a standard protocol, and after processing the video content, transmit the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32H04N5/765
Inventor 雍尚刚黄志正刘海峰
Owner CHIPONE TECH BEIJINGCO LTD
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