A multiplexing circuit of lvds interface and dsi interface

An interface multiplexing and circuit technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problem of resource waste of LVDS interface and DSI interface
CN106407138BActive Publication Date: 2019-07-23ACTIONS ZHUHAI TECH CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ACTIONS ZHUHAI TECH CO
Publication Date
2019-07-23

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Abstract

The invention discloses a LVDS (Low Voltage Differential Signaling) interface and DSI (Display Serial Interface) multiplexing circuit, and is used for solving the problem of interface resource waste caused in a way that the LVDS interface and the DSI can not be multiplexed. The circuit comprises a data clock selection circuit, a data clock synchronization circuit, a mode control circuit, a data conversion circuit and a driving circuit, wherein the data clock selection circuit selects a current interface mode, receives a data signal and a clock signal input from outside, and provides the data signal and the clock signal to the data clock synchronization circuit; the data clock synchronization circuit carries out synchronization on the data signal and the clock signal, provided the synchronized data signal and clock signal for the data conversion circuit; the data conversion circuit converts the synchronized data signal to be serial from parallel, and outputs a differential data signal to the driving circuit; and the driving circuit utilizes the differential data signal to control the range of the output signal so as to realize the multiplexing of the LVDS interface and the DSI and reduce resource waste.
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Description

Technical field

[0001] The invention relates to the field of display interfaces, in particular to a method and circuit for multiplexing LVDS interface and DSI interface. Background technique

[0002] Low Voltage Differential Signaling (LVDS) transmission, as a mature signal transmission technology, is widely used in the field of display interfaces, especially liquid crystal displays. However, with the rapid development of mobile terminals, higher requirements are placed on the bandwidth of the display interface. Therefore, the (Mobile Industry Processor Interface, MIPI) Alliance has proposed a Display Serial Interface (DSI) interface specification to meet the demand for higher resolution displays. For mobile consumer electronic terminals, in order to meet broader market needs, both display interface technologies will appear in the mobile processor interface to meet different customer needs, and customers will only choose to use them according to the actual plan An interface. [...

Claims

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