Data transmission method

Abstract

A data transmission method and a data receiving device are provided. The data receiving device receives data from a data line and contains M-numbered data ports (10), wherein each data port (10) contains a memory area with N-numbered data bits. When n bits of data are required to be transmitted to each data port (10), the data transmission method comprises the following steps: S01, the t-th M bits of data are transmitted to the (N-t+1)-th data bit of each of the M-numbered data ports (10), the data receiving device sends the (N-t+1)-th bit of data latching signal; S02, with the setting t=t+1, step S01 is repeated until t is equal to n; and S03, the data receiving device sends the entire data latching signal. By the method of transmitting the same number of data bits of data via different ports at the same time, the actual required data volume is transmitted. Therefore, when the transmission data volume is reduced, only the corresponding data volume needs to be transmitted; and compared with the traditional data transmission method, the data transmission rate is increased.

Description

technical field [0001] The invention relates to the field of a data transmission method and a data receiving device, in particular to the data transmission and device of a drive device for a flat panel display. Background technique [0002] Compared with flat screen carriers such as printed matter, display control devices such as flat panel display devices have the advantages of constantly changing text, graphics or colors, and have gradually become the new favorites of advertising media and household consumption. The continuous change of the picture is realized by continuously updating the driving data of the flat panel display device. For a flat-panel display device such as a monochrome screen, through data control, the pixels that can be perceived by the human eye can be turned on and off to update the picture. For a relatively complex full-color screen, people need the pixel not only to be able to realize the on or off that the human eye can perceive, but also need the ...

AI Technical Summary

Problems solved by technology

However, in the application, this type of driving device may be applied to static screens or dynamic screens.

And there are differences in the requirements for display accuracy

For example, when used in a dynamic screen, the accuracy requirements for display data will be reduced, for example, from sixteen-bit data accuracy (65536 gray levels) to twelve-bit data accuracy (4096 gray levels), and for The disadvantage of the traditional three-wire transmission protocol is that if the required data accuracy is reduced to twelve bits, the data to be sent still needs to be carried out in accordance with the format of sixteen-bit data for each port. Since the lower four bits are not required, the lower four bits are complemented. 0, the amount of transmitted data is still 16*16=256 bits

There is a need for a more efficient method of data transfer that eliminates the need to send invalid data when the display accuracy is reduced, i.e., the accuracy is reduced and the data transfer rate is increased

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