CN205140423U

CN205140423U - Miniature LED display board

Info

Publication number: CN205140423U
Application number: CN201520849835.4U
Authority: CN
Inventors: 彭帅星
Original assignee: BEIJING FALCON IMAGE Technology Co Ltd
Current assignee: BEIJING FALCON IMAGE Technology Co Ltd
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2016-04-06
Anticipated expiration: 2025-10-30

Abstract

The utility model discloses a miniature LED display board, a serial communication port, include: single -chip module (1), LED lattice modules (2), button module (3), USB interface module (4) and battery module (5), wherein, single -chip module (1) links to each other with LED lattice modules (2), single -chip module (1) links to each other with button module (3), single -chip module (1) links to each other with USB interface module (4), single -chip module (1) links to each other with battery module (5). This display board is used for showing characters or image information to has the low -power consumption, the characteristics hand -carried.

Description

Miniature LED display board

Technical field

The utility model relates to LED and shows field, especially a kind of portable, low cost, the LED display board of low-power consumption.

Background technology

Nineteen seventies, LED is invented.Along with the development and progress of science and technology, this display element having the features such as small size, low-power consumption, high brightness and long-life is applied in intelligent display field by people rapidly, and has all captured one seat in high low side display field.Such as common LED display, LED control panel, LED display board etc.Particularly LED display board, because single-chip microcomputer and LED all have the advantage of low cost, causes LED display board almost to become each little businessman and to prepare advertising the first-selected instrument of slogan.But common LED display board build both bulk, and power consumption is also very high, and be not suitable for extra high occasion is required to flexibility ratio.

Utility model content

In order to overcome the problem of LED display board build both bulk, and reduce its power consumption further, the utility model provides a kind of miniature LED display board, not only volume is light and handy for it, and break away from the constraint of power supply, be applicable to very much mobile LED and show field, such as chest card etc.

The utility model comprises: one-chip computer module (1), LED dot array module (2), key-press module (3), usb interface module (4) and battery module (5), wherein, one-chip computer module (1) is connected with LED dot array module (2); One-chip computer module (1) is connected with key-press module (3); One-chip computer module (1) is connected with usb interface module (4); One-chip computer module (1) is connected with battery module (5).

As specializing, described one-chip computer module (1) is directly connected with LED dot array module (2).

As specializing, the array resolution of described LED dot array module (2) is not more than 11 row * 44 and arranges.

Described one-chip computer module (1) is by single-chip microcomputer, and crystal, and other peripheral circuit such as reset circuit forms.It is responsible for reading the inner eeprom content of single-chip microcomputer, and by the data that read at LED lattice display, it is responsible for scanning key-press status simultaneously, and changes the brightness of display and displaying contents etc. according to press key contents.

Described LED dot array module (2) is by LED, and current-limiting resistance and other peripheral circuit form.It is responsible for showing data message, adopts the mode of column scan, and adopts pwm with the means of dutycycle to regulate and control brightness.

Described key-press module (3) is made up of other peripheral circuit such as button and resistance capacitance.It is responsible for and user interactions, to change the information such as brightness and displaying contents.

Described usb interface module (4) is made up of USB socket and other peripheral circuit.It is responsible for downloading or EEPROM, power supply and give battery module (5) charging etc., due to single-chip microcomputer internal support low speed usb protocol, therefore can not by outside downloader direct programming program and EEPROM.

Described battery module (5) is made up of battery, battery management chip and other peripheral circuit.It is responsible for system power supply, and supports that USB charges.

Embodiment 1, the present embodiment provides a kind of type selecting of main devices of display board, i.e. STC15W56S4 (single-chip microcomputer), 0603 paster red LED (LED), the vertical four pin touch-switchs (button) of 6*6*7mm, paster MICRO_USB socket (USB interface), 402035PL poly-lithium battery 250MAH (battery) and TP4057 (battery management chip).

The beneficial effects of the utility model are: build is small and exquisite, and powered battery is low in energy consumption, are applicable to mobile display field.

Accompanying drawing illustrates:

Fig. 1 is LED lattice structure schematic diagram of the present utility model.

Fig. 2 is structural drawing of the present utility model.

Fig. 3 is PCB schematic layout pattern.

(1) one-chip computer module in figure, (2) LED dot array module, (3) key-press module, (4) usb interface module, (5) battery module, (6) LED, (7) power switch.

Embodiment:

Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.

Be the miniature LED display board of one that the utility model provides as depicted in figs. 1 and 2, this display board is by one-chip computer module (1), LED dot array module (2), key-press module (3), usb interface module (4) and battery module (5) are formed, wherein one-chip computer module (1) is connected with LED dot array module (2), one-chip computer module (1) is connected with key-press module (3), one-chip computer module (1) is connected with usb interface module (4), one-chip computer module (1) is connected with battery module (5), in addition usb interface module (4) is also connected with battery module (5).

Embodiment 1, with reference to Fig. 3, the present embodiment provides a kind of PCB placement scheme.PCB adopts 4 Rotating fields, LED dot array module (2) is positioned at the bottom of PCB, all the other devices are all positioned at the top layer of PCB, key-press module (3) is positioned over upper left hand corner section, battery module (5) is positioned over PCB central authorities, one-chip computer module (1), usb interface module (4) and power switch (7) are all placed on the right side of PCB, and usb interface module (4) and power switch (7) are placed on PCB edge.

Embodiment 2, the present embodiment provides the typical workflow of LED display board.User uses PC to pass through usb interface module (4) directly will need one or more information programming of display in the EEPROM of single-chip microcomputer inside, when display board works on power, one-chip computer module (1) can be read the information of inner EEPROM and be shown by LED dot array module (2), and user can pass through displaying contents and display brightness etc. that key-press module (3) regulates LED dot array module (2).

Claims

1. a miniature LED display board, it is characterized in that, comprise: one-chip computer module (1), LED dot array module (2), key-press module (3), usb interface module (4) and battery module (5), wherein, one-chip computer module (1) is connected with LED dot array module (2); One-chip computer module (1) is connected with key-press module (3); One-chip computer module (1) is connected with usb interface module (4); One-chip computer module (1) is connected with battery module (5).

2. miniature LED display board according to claim 1, is characterized in that, described one-chip computer module (1) is directly connected with LED dot array module (2).

3. miniature LED display board according to claim 1, is characterized in that, the array resolution of LED dot array module (2) is not more than 11 row * 44 and arranges.