Control method for multi-digit LED nixie tubes

A technology of LED digital tube and control method, which is applied in the direction of instruments, static indicators, etc., can solve the problems of not being able to apply multi-bit customized LED display screens, and achieve the effects of simplifying design difficulty, simplifying circuit composition, and reducing manufacturing costs

Active Publication Date: 2012-11-28
CRM ICBG (WUXI) CO LTD
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this circuit structure is only applicable to a single LED digital tube, and cannot be applied to a multi-digit customized LED display in which segments (seg) are connected in parallel.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control method for multi-digit LED nixie tubes
  • Control method for multi-digit LED nixie tubes
  • Control method for multi-digit LED nixie tubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] This embodiment is an example in which three single chips and four "day."-shaped devices are used in combination to form an 8-segment (seg) 12-bit display device. If 8 output drive port control segments (seg) and 12 output drive port control common ports (com) are required according to the traditional technology, then at least 8seg+12com=20 ​​display drive output ports are required; and figure 2 The existing technology using time-division multiplexing cannot be applied to the above-mentioned multi-digit LED digital tubes connected in parallel.

[0016] By adopting the method of the present invention, a non-fixed common terminal (com) is designed so that a certain number of output drive ports become the common terminal (com) in turn. In this embodiment, since there are 4 display units on a single device, the total number of output drive ports required is the number of units 4 + the number of display segments 8 = 12 output drive ports. Compared with traditional technolo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a control method for multi-digit LED nixie tubes, and relates to the electronic technology. The LED nixie tubes control segments (seg) and a common end (com) through a time division multiplex drive port; the segments (seg) are lightened circularly under the control of the common end (com) to display different contents; the multi-digit LED nixie tubes are N-digit L-segment parallelly-connected LED nixie tubes, including N nixie tubes; and each of the nixie tubes has the same segment number L. The control method is characterized in that S output drive ports are arranged; while N is a base number of a cycle, the N output drive ports sequentially control the common end (port), and the other output drive ports control the segments (seg); and N is the digit number of the nixie tubes, and S=N+L. The control method for the multi-digit LED nixie tubes can reduce the number of function output ports of the common end for the multi-digit LED nixie tubes, simplify circuit composition and reduce the design difficulty in control integrated circuits.

Description

technical field [0001] The invention relates to a display control technology of LED digital tubes, in particular to a control method for parallel multi-bit LED digital tubes. Background technique [0002] LED digital tube (also known as digital light-emitting tube, light-emitting diode display) is a display device that uses "segment (seg)" as the light-emitting unit to light up and combine. According to different lighting combinations, different content is displayed. The most typical ones are as 8-segment digital display, including the combination of "day" and a decimal point, a total of 8 display units, that is, 8 segments. Although there are fewer display combinations, it can display numbers from 0 to 9, and multiple parallel connections can display multiple digits, which can meet the needs within a certain range. At present, this kind of low-cost LED display solution is often used in the display of VCD, DVD, induction cooker, microwave oven and other small household appl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/14
Inventor 丁增伟徐栋叶青朱立群罗先才牛征奚辛茹
Owner CRM ICBG (WUXI) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap