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LED display screen drive device and LED digital perpetual calendar

A technology of LED display and driving device, applied in the field of electronics, can solve the problems of troublesome wiring, short circuit of soldering and tin, inconvenient PCB wiring, etc.

Active Publication Date: 2013-10-23
黎继兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the utilization rate of the port is very low, which will also bring inconvenience to the PCB wiring and troublesome wiring
Due to the large number of ports, the connection between the PCB board and the COB board with the control chip is also troublesome, and it is prone to problems such as soldering and tin short circuit, poor contact, etc.

Method used

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  • LED display screen drive device and LED digital perpetual calendar
  • LED display screen drive device and LED digital perpetual calendar
  • LED display screen drive device and LED digital perpetual calendar

Examples

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Embodiment Construction

[0034]The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0035] Such as figure 1 As shown, the present invention provides a kind of LED display driving device, comprises control chip 10, and LED display screen comprises a plurality of LEDs, and control chip 10 comprises 4 signal control ports, 4 scanning lines ( C1, C2, C3, C4), and each scanning line is multiplexed as a scanning electrode line and a signal electrode line. When one of the scanning lines is a scanning electrode line, the other scanning lines are signal electrode lines, and the LED is connected to any two between scan lines. Among them, each scanning line wraps around and intersects itself and other scanning lines to form a matrix. The p...

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PUM

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Abstract

The invention provides an LED display screen drive device and an LED digital perpetual calendar. The LED digital perpetual calendar comprises an LED display screen and a drive device. The drive device comprises a control chip. The LED display screen comprises a plurality of LEDs, and the control chip comprises n signal control ports (n>=2); the n signal control ports are connected n scanning lines respectively, each scanning line also serves as a scanning electrode wire and a signal electrode wire, when one of the scanning lines serves as the scanning electrode wire, other scanning lines serve as the signal electrode wires, and the LEDs are connected between any two scanning lines. By means of the LED display screen drive device and the LED digital perpetual calendar, the use amount of the control ports of the control chip of the LED display screen drive device is reduced, the use ratio of the control ports of the chip is improved, selection demands of control chip performance are lowered, and new functions can be added to the LED digital perpetual calendar conveniently.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an LED display drive device and an LED digital perpetual calendar. Background technique [0002] LED digital perpetual calendar is a widely used daily timing tool. The calendar clock with digital display has become more and more popular, especially suitable for use in places such as family rooms, offices, meeting rooms, stations and squares. As a small household appliance, the digital perpetual calendar has appeared in people's lives for a long time, and has gradually replaced traditional clocks and watches, becoming one of the important channels for people to know the time. [0003] The existing LED digital perpetual calendar scanning method is to scan according to the traditional dedicated COM line and dedicated SEG line, and its port utilization rate is very low. For example: 5 COM lines and 10 SEG lines can only scan at most 5×10=50 At present, 7 COM lines and 17 SEG lin...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09D3/12
Inventor 黎继兴
Owner 黎继兴
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