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LED dot matrix Chinese character display screen

A technology for display screens and Chinese characters, applied in the field of display screens

Inactive Publication Date: 2014-07-09
SUZHOU VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current LED dot-matrix display has high cost, complex implementation, and high failure rate.

Method used

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  • LED dot matrix Chinese character display screen

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] attached figure 1 The LED dot matrix Chinese character display according to the present invention includes a control processor 1, a decoding selection unit 2, a latch drive unit 3, an SCI communication unit 4, a power supply circuit unit 5 and an LED display screen (not shown); Described control processor 1 selects M68HC908JL8 chip for use; Described decoding selection unit 2 is the circuit that is made up of four-six decoder 74LS154 chip; A circuit composed of chips; the SCI communication unit 4 is a circuit composed of MAX232 chips; PTA0 (KBI0)-PTA3 (KBI3) of the M68HC908JL8 chip of the control processor 1 and the input ports A and B of the decoding selection unit 2 , C, D are connected to carry out the decoding selection of the LED row line; the PTB0 (ADC0)-PTB2 (ADC2) of the M68HC908JL8 chip of the control processor 1 is ...

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Abstract

The invention discloses an LED dot matrix Chinese character display screen. The LED dot matrix Chinese character display screen comprises a control processor, a decoding selection unit, a latching drive unit, an SCI communication unit, a power circuit unit and an LED display screen. The control processor and the decoding selection unit are connected for decoding selection of LED row lines. The control processor and the latching drive unit are connected for drive input of the LED column lines. The decoding selection unit and the latching drive unit are respectively connected with the LED display screen. The control processor and the SCI communication unit are connected for serial communication. A power circuit supplies direct current working voltages and respectively supplies power to the control processor, the latching drive unit, the decoding selection unit, the SCI communication unit and the LED display screen. The LED dot matrix Chinese character display screen is low in power consumption and cost, easy to maintain and implement, stable in function, and capable of being suitable for indoor and outdoor Chinese character display.

Description

technical field [0001] The invention relates to a display screen, in particular to an LED dot matrix Chinese character display screen with low power consumption, low cost, easy maintenance, simple realization and stable functions. Background technique [0002] In recent years, with the gradual development of electronic technology, LED dot matrix display has been more and more widely studied. The LED dot-matrix display is to extract the Chinese characters to be displayed through the PC, and send them to the single-chip microcomputer, and then display them on the dot-matrix screen. It is mainly suitable for indoor and outdoor Chinese character display. However, the current LED dot-matrix display screen has high cost, complex implementation, and high failure rate. To this end, we have developed a low-power, low-cost, easy-to-maintain, simple-to-implement, and stable-function LED dot-matrix Chinese character display. Contents of the invention [0003] The object of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
Inventor 史斌斌
Owner SUZHOU VOCATIONAL UNIV