KR100667231B1 - Banner digital sign and driving method thereof - Google Patents

Abstract

The present invention relates to a banner digital signage capable of sequential lighting of LEDs. To this end, in the signboard, provided on the front of the signboard 100, the transparent plate 112 for transmitting the light and the base plate 110 consisting of a portion that does not transmit light; A plurality of LED elements 118 provided on the rear surface of the transparent part 112 of the base plate 110 to irradiate light; An RGB sequential lighting unit 40 configured to sequentially and continuously change voltages applied to each of the plurality of LED elements 118 to enable gradation light emission; LCD monitor 160 provided on one side of the base plate 110; And video transmission means for transmitting a video signal to the LCD monitor 160.

Digital, Banner, Sign, Light Sensor, Desktop, Electronic Display, Computer, Monitor, Sequential, Gradation

Description

Banner digital sign and driving method capable of sequential lighting of LED

1 is a perspective view of a banner digital signage capable of sequential lighting of LEDs according to an embodiment of the present invention;

FIG. 2 is a partially enlarged cross-sectional view of portion A- in FIG. 1;

3 is a block diagram showing the configuration of the driving circuit of the banner digital signage according to the present invention;

FIG. 4 is a waveform diagram of R, G, and B signals output by the RGB sequential lighting unit 40 and the integrating processor 44 in FIG. 3.

5 is a detailed circuit diagram of the RGB sequential lighting unit 40 and its peripheral components in the driving circuit of the banner digital signage according to the present invention.

<Description of the symbols for the main parts of the drawings>

2, 4, 6: voltage reduction rate, 10: optical sensor (CDS),

12: 3 seconds delay, 16: 6 seconds delay,

18: 30 second delay, 20: 2 second delay,

22: 24 hour timer, 24: reset unit,

30: signal processor, 32: clock generator,

34: personal computer (PC), 36: remote Internet,

40: RGB sequential light part, 42: delay part,

46: AC main drive, 48: DC main drive,

50: LED sign drive unit, 60: hard disk,

100: banner digital signage, 110: desktop,

112: transparent portion, 114: substrate,

116: light blocking wall, 118: LED element,

120: LED display (home page, telephone number), 150; Led billboard,

160: LCD monitor, 162: Speaker.

The present invention relates to a banner digital signage, and more particularly, to a banner digital signage capable of sequential lighting of LEDs.

In general, store signboards used backlighting for night lighting. However, this method did not change the contents of the signboard, but merely illuminated it brightly.

In recent years, as LED devices become cheaper and various control devices are developed, an electronic signboard displaying a sentence, a telephone number, etc. in a scrolling manner is used separately from a signboard. However, there is a limit that such an electronic board is difficult to enlarge and the color displayed is monotonous.

Therefore, researches on banner digital signage (or electronic signage), which attracts the attention of consumers by displaying more diverse information in various ways, are being conducted.

Therefore, the present invention has been made to solve the above problems, the first object of the present invention, by displaying a variety of information in a variety of ways (scrolling method, video playback, etc.) of the LED that can attract the attention of consumers It is to provide a banner digital signage capable of sequential lighting.

The second object of the present invention is to automatically recognize the difference in the amount of light between day and night by changing the operating state, the banner digital signage capable of sequential lighting of the LED to achieve the optimal display state irrespective of time and light amount To provide.

It is a third object of the present invention to provide a banner digital signage capable of displaying a variety of mixed colors by implementing a change in RGB color by gradation conversion, and enabling a sequential lighting of LEDs so that color conversion or scene conversion can be naturally performed. .

A fourth object of the present invention is to provide a banner digital signage capable of sequential lighting of LEDs that can easily update the contents displayed on the LCD monitor by remotely controlling the computer from the outside via the Internet.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments described in conjunction with the accompanying drawings.

The object of the present invention as described above, in the signboard,

A base plate 110 provided on the front surface of the signboard 100 and formed of a transparent portion 112 that transmits light and a portion that does not transmit light;

A plurality of LED elements 118 provided on the rear surface of the transparent part 112 of the base plate 110 to irradiate light;

An RGB sequential lighting unit 40 configured to sequentially and continuously change voltages applied to each of the plurality of LED elements 118 to enable gradation light emission;

LCD monitor 160 provided on one side of the base plate 110; And

It can be achieved by a banner digital signage capable of sequential lighting of the LED, including; video transmission means for transmitting a video signal to the LCD monitor 160.

And, the LED display board 150 provided on the other side of the base plate 110; And

It is preferable to further include an LED sign driver 50 for displaying the LED sign 150 in accordance with a predetermined program.

In addition, the optical sensor 10 for measuring the external light to distinguish between night and day; And

Further preferably, the switch means for turning on / off the power of the RGB sequential lighting unit 40 based on the measurement signal of the optical sensor 10.

In addition, it is most preferable that the light blocking wall 116 is further formed around the LED element 118 so that the light emitted from the LED element 118 is directed toward the transparent part 112.

The video transmission means may include a hard disk 60 and a computer 34 capable of internet access.

In addition, the RGB sequential lighting unit 40 outputs red (R), green (G), and blue (B) light emission signals,

It is most preferable to increase linearly up to the rated voltage of each light emitting signal and to decrease linearly from the rated voltage.

According to another aspect of the invention, the RGB sequential lighting unit 40 determines the voltage reduction rate for determining the reduction rate when the light emission signal of each of the red (R), green (G), blue (B) is linearly reduced It is possible to further comprise means.

The invention will now be described in detail with reference to the accompanying drawings, in which preferred embodiments are shown.

1 is a perspective view of a banner digital signage capable of sequential lighting of LEDs according to an embodiment of the present invention. As shown in FIG. 1, the banner digital signage 100 is composed of an opaque base plate 110 on which a front surface is black or light is not transmitted.

In addition, the LED display unit 120 forms a transparent unit 112 and is configured to transmit light. The LED display unit 120 constitutes a number or letters such as a business name, a telephone number, and a homepage. In FIG. 1, the name (SM Mart) is displayed in large letters in the central area of the signboard 100, and the homepage address (for example, www.sm.com) and a phone number (for example, 123-4567) are shown. Are arranged and configured to form smaller letters. That is, a plurality of LED elements 118 are arranged in one column to form letters.

The LED sign 150 is configured by arranging a plurality of LED elements in a matrix form, and is configured to display predetermined letters, phone numbers, and simple animations while scrolling.

The LCD monitor 160 is connected to the computer 34 to play various videos or advertisement clips. To this end, a separate speaker 162 is configured near the LCD monitor 160 to reproduce sound.

FIG. 2 is a partially enlarged cross-sectional view of portion A- in FIG. 1. As shown in FIG. 2, the transparent display 112 is provided to make the LCD display 120 more visible and to illuminate the LED light at night.

The substrate 114 is provided with an LED element 118, and a light blocking wall 116 is formed around the LED element 118 so that the light emitted from the LED element 118 is irradiated in a predetermined direction. do. The light blocking wall 116 may protrude from the substrate 114 or may protrude from the rear surface of the base plate 110.

3 is a block diagram showing the configuration of the driving circuit of the banner digital signage according to the present invention. As shown in FIG. 3, the left side includes a timer 22, an optical sensor CDS 10, various delay units 12, 16, 18, 20, and a reset unit 24 around the signal processor 30. On the right side, various display devices and corresponding driving units are provided.

For example, an LED 118 for displaying the LED display unit 120 and an RGB sequential driver 40 for driving the same are provided, and computers 34 and 60 for displaying the LCD monitor 160 are provided. The LED sign driver 50 for displaying the LED sign 150 is provided. This configuration is described in more detail as follows.

The timer 22 is provided to operate for 24 hours, and the output signal is input to the signal processor 30 through the 2 second delay unit 20 and the 30 second delay unit 18. The delay unit takes into account the operating time of the hard disk 60, and the delay time may be increased or shortened depending on performance.

As the optical sensor 10, a CDS (photoconductive cell) is used. The CDS is a principle that the resistance value decreases according to the light irradiated from the outside, and the current flows, and when the light is blocked, the resistance value increases and the current does not flow. These CDSs are small, light, and inexpensive and are widely used in flashers, exposure meters, and the like. The optical sensor 10 is configured to distinguish between night and day so that the LED device 118 is turned off during the day and the LED device 118 is turned on at night. Alternatively, if necessary, the LED display panel 150 may be turned off during the day and the LED display panel 150 may be turned on at night. To this end, the signal of the optical sensor 10 is also input to the signal processor 30 through the delay units 12 and 16 step by step.

The signal from the signal processing unit 30 is input to the RGB sequential lighting unit 40 to blink the LED display unit 120 and is input to the hard disk 60 to control the hard disk 60, the LCD monitor 160 The display panel is input to the LED sign driver 50 to control the driving of the LED sign 150.

The clock generator 32 is typically a crystal oscillator that outputs a constant frequency. The signal of the clock generator 32 is transmitted to the RGB sequential lighter 40, the hard disk 60, and the LED sign driver 50 to be a reference for controlling whether the signal processor 30 is driven.

The RGB sequential lighting unit 40 generates a signal so as to sequentially light up the red (R), green (G), and blue (B) lights for each of the LED elements 118 heat-resistant in one column. As a result, the font color of the signboard is dynamically changed.

The integrating processor 44 determines the voltage reduction rate when linearly decreasing from the rated voltage used for light emission to the ground voltage by combining the resistance values of the variable resistor shown in FIG. This is closely related to the gray scale expression power of each LED element 118.

In order to drive the LED element 118, an AC main driver 46 using AC power and a DC main driver 48 using DC power are connected. Accordingly, power may be selectively connected and supplied as necessary or according to characteristics of the LED device 118.

The hard disk 60 stores video data, text data, and sound data to be reproduced by the LCD monitor 160. Such data can be updated via computer 34 and managed by a central administrator via remote internet 36.

The LED sign driver 50 is a module for driving the LED sign 150. To this end, character data, attributes (color, scroll speed, style, font size, font type, etc.), animation data, and the like to be displayed on the LED display board 150 are stored and output. The display data in the LED sign driver 50 may also be configured to be controlled by the computer 34.

FIG. 4 is a waveform diagram illustrating an example of R, G, and B signals output by the RGB sequential lighting unit 40 and the integrating processor 44 in FIG. 3. As shown in FIG. 4, in accordance with the clock signal of the clock generator 32, at the first clock, the voltage of the red (R) signal increases linearly from 0 to the rated voltage, and linearly at the second clock, depending on the design. Decreases linearly or decreases linearly at the third clock. Then, the voltage of the green (G) signal increases linearly from 0 to the rated voltage at the second clock, and decreases linearly at the third clock. Thus, in the second clock, the gray scale expression is achieved because the red light decreases and the green light starts to increase.

Then, the voltage of the blue (B) signal increases linearly from 0 to the rated voltage at the third clock, and decreases linearly at the fourth clock. Thus, in the third clock, gray scale expression is achieved because blue light starts to increase while green light decreases.

When the light of each color decreases linearly, the slope value that decreases as the resistance value of the variable resistor is changed in the circuit diagram to be described later may be adjusted. For example, FIG. 4 shows an example in which the decreasing slope of the blue light decreases to the steep slope 2, the normal slope 4 and the slow slope 6. By changing the slope value, the time and degree of gray scale display can be controlled. In FIG. 4, although the inclination value of only the blue light is changed, the inclination values of the red (R) light and the green (G) light may be changed. Furthermore, not only can the control be performed on the inclination value decreasing from the rated voltage but also the same control can be performed on the inclination value rising to the rated voltage.

4 is only an example of the gray scale representation of the red (R), green (G) and blue (B) light, it is a matter of course that a variety of production is possible by adjusting the position and width and the degree of inclination of each rated voltage.

5 is a detailed circuit diagram of the RGB sequential lighting unit 40 and its peripheral components in the driving circuit of the banner digital signage according to the present invention. As shown in Fig. 5, IC22 uses an NE555 chip, and IC23 uses a 4017 chip.

The LED element 118 is driven by three integrating processing units 44 centering on three IC elements IC24, IC25, and IC26, and the gray level of the LED element 118 reduces the time delay of the delay unit 42. The variable controllers R41, R47 and R53 to control and the variable controllers R43, R49 and R55 for controlling the slope value and the discharge period of the capacitor can be controlled and implemented.

Therefore, according to an embodiment of the present invention as described above, there is an advantage that can attract the attention of consumers by displaying a variety of information in a variety of ways (scrolling method, video playback, etc.). This is an advantage that emphasizes the basic function of the signboard.

In addition, by automatically recognizing the difference in the amount of light between day and night and changing the operating state, an optimal display state may be achieved regardless of time and amount of light. Therefore, management cost and manpower are unnecessary, and automatic operation is possible only by installation.

In addition, by implementing the change of the RGB color to the gradation conversion, it is possible to display a variety of mixed colors, and the color conversion or scene conversion can be made naturally, it can try to differentiate greatly from the conventional signage.

In addition, you can easily update the contents displayed on the LCD monitor by controlling the computer remotely from the outside via the Internet. Therefore, the latest content can always be displayed on the signboard.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention. It is obvious that all modifications fall within the scope of the appended claims.

Claims (7)

In the signboard, A base plate 110 provided on the front surface of the signboard 100 and formed of a transparent portion 112 that transmits light and a portion that does not transmit light; A plurality of LED devices provided on the rear surface of the transparent part 112 of the base plate 110 to irradiate light, and a light blocking wall 116 is formed around the plurality of LED elements toward the transparent part 112. (118); An RGB sequential lighting unit 40 for enabling gradation light emission by sequentially and successively changing voltages applied to each of the plurality of LED elements 118; An LCD monitor 160 provided at one side of the base plate 110; Video transmission means for transmitting a video signal to the LCD monitor 160; An LED display plate 150 provided at the other side of the base plate 110; An LED display board driver for displaying the LED display board 150 according to a predetermined program; An optical sensor 10 measuring external light to distinguish night and day; And And switch means for turning on / off the power of the RGB sequential lighting unit 40 based on the measurement signal of the optical sensor 10. The video transmission means includes a hard disk 60, a computer 34 capable of internet access, and The RGB sequential lighting unit 40 outputs red (R), green (G), and blue (B) light emitting signals, increases linearly up to the rated voltage of each light emitting signal, and decreases linearly from the rated voltage. Banner digital signage capable of sequential lighting of the LED, characterized in that it comprises a voltage reduction rate determining means for determining the rate of decrease when linearly decreasing. delete delete delete delete delete delete

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