Cascaded stroke segment digital display and driving method
A technology of digital display and pen section, applied in the field of digital tube drive circuit, can solve problems such as troublesome troubleshooting, high cost, complicated circuit, etc., and achieve the effects of convenient installation and maintenance, cost saving, and simplified hardware circuit
Active Publication Date: 2020-01-14
ZHEJIANG BUSINESS TECH INST
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Problems solved by technology
For example, patents 201810164118.6 "A Control Circuit and Method for Driving Nixie Tubes by Single Chip Microcomputer", 201811268799.7 "Nixie Tube Control Method, Device, and Nixie Tube Display Device", etc., all use this type of traditional display technology, the circuit is complicated, the cost is high, and the exclusion failure trouble
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[0023] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.
[0024] like figure 1 As described in --5, a cascaded pen segment digital display includes a single-chip microcomputer, a DC power supply and several pen segments, wherein the pen segment is provided with several built-in driving LEDs, and several built-in driving LEDs are cascaded in a strip-shaped circuit Each pen segment is formed on the board; the built-in driving LED includes a power supply terminal, a signal input terminal and a signal output terminal; the power supply terminal is connected to the DC power supply; the signal output terminal is connected to the signal of the next built-in driving LED input end; each of the pen segments includes a signal input end and a signal output end; the signal output end of one of the pen segments is connected with the signal input end of the other pen segment; the signal input end of the first pen s...
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A cascade stroke segment digital display comprises a single-chip microcomputer, a direct-current power supply and a plurality of stroke segments; the stroke segments are provided with a plurality of built-in driving LEDs, and the built-in driving LEDs form each stroke segment on a strip-shaped circuit board in a cascade mode. Each built-in driving LED comprises a power supply end, a signal input end and a signal output end, wherein the power end is connected with a direct-current power supply, and the signal output end is connected to the signal input end of the next built-in driving LED; eachstroke segment comprises a signal input end and a signal output end, wherein the signal output end of one stroke segment is connected with the signal input end of the other stroke segment; and the signal input end of the first stroke segment is connected with the I / O port of the single-chip microcomputer. Compared with the prior art, the seven-segment digital display has the advantages that all stroke segments in the seven-segment digital display are connected in a cascaded mode, a single-chip microcomputer sends coded signals to control combined display of segment codes, a special LED drivecircuit does not need to be used, a hardware circuit is simplified, and later installation and maintenance are facilitated. Compared with the traditional digital display screen, the circuit board costis saved.
Description
technical field [0001] The invention relates to the technical field of digital tube driving circuits, in particular to a cascaded pen segment digital display and a driving method. Background technique [0002] LED digital tube (LED Segment Displays) is a common digital display device. It has 7 pen segments, which are packaged together by multiple light-emitting diodes to form an "8"-shaped device. Combine 10 different numbers from 0 to 9. A plurality of LED digital tubes are arranged together to form an LED digital display system. For large LED nixie tubes, there are multiple LEDs in series or parallel in each pen segment. In order to display the traditional LED digital tube normally, a driving circuit is used to drive each segment code of the digital tube, so as to display the corresponding number. Static drive means that each segment code of each digital tube has a port for driving. The dynamic drive is to connect all the display segments of the same name of the digita...
Claims
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IPC IPC(8): G09G3/14
CPCG09G3/14
Inventor张培忠姜凯
OwnerZHEJIANG BUSINESS TECH INST