Sampler, display driving chip and display device

Abstract

The invention provides a sampler, a display driving chip and a display device. The sampler comprises a first sampling control circuit, a second sampling control circuit and a sampling circuit; the second sampling control circuit comprises N second sampling control units; the second sampling control unit comprises M second sampling control unit circuits, wherein the first sampling control circuit is used for converting serial input data into N first serial data, and N and M are positive integers; N is greater than 1, and / or M is greater than 1; the mth second sampling control unit circuit in the nth second sampling control unit converts the nth first serial data into second serial data under the control of the sampling control signal; the sampling circuit is electrically connected with the second sampling control unit circuit and is used for converting the second serial data into corresponding parallel data under the control of the sampling control clock signal; wherein n is a positive integer less than or equal to N. According to the invention, the power consumption is reduced, and the consumed peak current and average current are reduced.

Description

technical field [0001] The invention relates to the technical field of signal sampling, in particular to a sampler, a display driving chip and a display device. Background technique [0002] In the display driver chip circuit, the clock signal generation circuit extracts the clock from the high-speed serial data to generate a reference clock signal to operate the display driver logic. In the process of converting serial data to parallel data, one bit of high-speed serial data will be converted into multiple bits of low-speed parallel data, so the load of the data buffer is generally relatively large, and the size of the data buffer is usually increased to ensure its normal operation . However, as the size increases, power consumption and peak current also increase, which also reduces EMI immunity. Contents of the invention [0003] The main purpose of the present invention is to provide a sampler, a display driver chip and a display device, which solve the problems of la...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a sampler, a display driver chip and a display device, which solve the problems of large power consumption of the existing display driver chip and large peak current and average current of the sampler

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