Command register type interface module of industrial liquid crystal display

A liquid crystal display, instruction register technology, applied in the direction of static indicators, digital output to display devices, instruments, etc., can solve the problems of poor compatibility of bus interface modules, slow display speed, single function, etc., to facilitate development and use, simplifying Effects developed and used

Inactive Publication Date: 2011-11-09
河南友利华系统工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 sp

Method used

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  • Command register type interface module of industrial liquid crystal display
  • Command register type interface module of industrial liquid crystal display
  • Command register type interface module of industrial liquid crystal display

Examples

Experimental program
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Example Embodiment

[0023] The first embodiment of the present invention includes: as figure 2 and image 3 There are 20 needles in the command register interface shown, including: 8 data lines D0-D7, 3 address lines A0-A2, 4 touch screen interface lines X+, X-, Y+, Y-, write valid signal / WR, Read valid signal / RD, chip select signal / CS, power supply signal VCC and ground signal GND. Its interface is defined in the following table 1:

[0024] lead

[0025] Table 1

[0026] like figure 1 The data line, address line, touch screen interface line, write valid signal / WR, read valid signal, chip select signal, power signal and ground signal are connected to the interface controller. The interface controller adopts ISPMACH4256V chip. The KYOCERA53.6931MHz crystal oscillator is used as the main clock crystal oscillator of the interface controller, and the LCD dot clock is generated through the frequency division process of the interface controller. In the 2...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): G09G3/36G06F3/14
Inventor 吴晓北徐锐
Owner 河南友利华系统工程有限公司
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