Command register type interface module of industrial liquid crystal display

Abstract

The invention relates to an interface module, in particular relates to a command register type interface module of an industrial liquid crystal display. The command register type interface module comprises an address line interface, a data line interface, a chip select line interface, a read line interface and a write line interface, wherein the address line interface and the chip select line interface are connected with an interface controller; the interface controller is respectively connected with a data register, an X address register, a Y address register, a resolution register and a control register; and the data line interface, the read line interface and the write line interface are all connected with the interface controller. According to the invention, the interfaces of the module are simple; and by the adoption of the register type operation mode of the module, the compatibilities of the module with various industrial liquid crystal displays are improved, and the functionality and display speed of the industrial liquid crystal displays are also improved.

Description

technical field [0001] The invention relates to an interface module, in particular to an instruction register type interface module of an industrial liquid crystal display. Background technique [0002] At present, the interface modules of industrial liquid crystal displays generally include: bus interface, bus control module and display storage module realized by single-chip microcomputer. Most of the bus interface used is a 34-pin interface, including data lines (D0-D7), address lines (A0-A15), read valid signal ( / RDCS), write valid signal ( / WCS), power supply (VCC) and ground ( GND). Due to the limitations of the interface, the function of the bus control module is relatively single, and it can only complete simple passive display operations. Such a bus interface module (1) has poor compatibility; (2) has a single function; (3) has a slow display speed; (4) PCB board wiring is relatively complicated. Apparently, such an interface module can no longer meet the requireme...

AI Technical Summary

Problems solved by technology

Due to the limitations of the interface, the function of the bus control module is relatively single, and it can only complete simple passive display operations

Such a bus interface module (1) has poor compatibility; (2) has a single function; (3) has a slow display speed; (4) PCB board wiring is relatively complicated

Obviously, such an interface module can no longer meet the requirements of the development of industrial liquid crystal displays in the direction of "high compatibility, multi-function, less wiring, and fast display".

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