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Multi-section nixie tube display drive circuit structure

A display driver and circuit structure technology, applied to static indicators, instruments, etc., to achieve stable and reliable working performance, wide application range, and reduce the number of display output ports

Active Publication Date: 2013-06-19
CRM ICBG (WUXI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, using a traditional LED display driver circuit to drive the display mode of M GRID×N SEG requires M+N display output driver ports

Method used

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  • Multi-section nixie tube display drive circuit structure
  • Multi-section nixie tube display drive circuit structure
  • Multi-section nixie tube display drive circuit structure

Examples

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Embodiment Construction

[0046] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0047] The core idea of ​​the new LED display driving circuit provided by the present invention is not to separate bits and segments, but to combine bits and segments together, replace them with a group of outputs, and distinguish bits and segments through time division multiplexing. The N display output drive ports can support a display mode of N bits×(N−1) segments at most.

[0048] see image 3 As shown, the multi-segment digital tube display drive circuit structure includes a display drive module, wherein the display drive module has N display output drive ports, and each of the display output drive ports is respectively connected to a corresponding multi-segment digital tube. The gate ends are connected, and the multi-segment digital tubes have segmented display control ports corresponding to the number of segments, and each segmented d...

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Abstract

The invention relates to a multi-section nixie tube display drive circuit structure which comprises a display drive module. The display drive module is provided with N display output drive ports, each display output drive port is connected with a strobe end of a corresponding multi-section nixie tube, the multi-section nixie tubes are provided with section display control ports with the number corresponding to the number of sections, the section display control ports of each multi-section nixie tube are respectively connected with corresponding display output drive ports in the display drive module besides the display output ports which are connected with the strobe ends of the multi-section nixie tubes, N is equal to or greater than two, and the number of the sections is smaller than N. The multi-second nixie tube display drive circuit structure is used for distinguishing positions and sections in time division multiplexing, the number of the display output ports of the display drive circuit of light emitting diode (LED) is greatly reduced, the resource of the output ports is completely used, the cost of chips and the cost of sealing are lowered, structure is simple and practical, working performance is stable and reliable, and applicable range is wide.

Description

technical field [0001] The invention relates to the design field of semiconductor integrated circuits, in particular to the technical field of digital display driving circuits, and specifically refers to a multi-segment digital tube display driving circuit structure. Background technique [0002] At present, LED display driving circuits are used in display driving of VCD, DVD, induction cooker, microwave oven and other small household appliances. LED (Light Emitting Diode Display) display driver is mainly composed of MCU digital interface, data latch, display output driver and key scanning, among which the display output driver is divided into bit (GRID) output and segment (SEG) output. Displaying 1-digit 8-segment digital light-emitting diode requires 1GRID×8SEG; displaying 10-digit 8-segment digital light-emitting diode requires 10GRID×8SEG, and the display output drive part needs 18 (10+8) output ports. Too many output ports lead to relatively High chip cost and packagin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/14
Inventor 叶青陶绪友丁增伟牛征
Owner CRM ICBG (WUXI) CO LTD
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