KR101105512B1 - LED module for electronic board - Google Patents

Abstract

The present invention relates to an LED module used for an electronic sign board, the LED module for an electronic sign according to an aspect of the present invention is an LED module used for an electronic sign, N (N is a natural number of 1 <N <= 16) LED lamps The LED lamp unit divided into M (M is a natural number of 1 <= M <16) including a row, and a data signal from the control module of the display board is displayed so that one or more of characters, images, and video are displayed through the LED lamp unit Module control unit for controlling the blinking of the LED lamps by a preset scanning method according to the input unit transmitted, the output unit capable of outputting the data signal transmitted to the LED lamp unit to another adjacent LED module and the data signal transmitted through the input unit Include. According to the present invention, the data signal is faster than the conventional LED module, and the picture quality of the text or the image is natural.

Description

LED module for electronic display board {A LED module for a electric display board}

The present invention relates to an LED (LED) module for an electronic board driven according to a scanning scheme for simultaneously transmitting data signals to LED lamps located in the same column in one horizontal section.

Today, a variety of texts and / or images are displayed through signboards rather than signs or banners. The display board can change the display data from time to time than existing banners or signs, which can result in high promotional effects.

On the other hand, in recent years, with the trend of large-sized display boards, the use of video is increasing. For example, the World Cup relay event takes place on a large billboard. As such, as the active use of the medium-large display boards, data displayed on the display boards also tends to escape from simple characters or images and expand into high-definition video.

However, the LED module used in the existing electronic signboards has not escaped the scanning method of the TV. The scanning method applied to most existing LED modules is based on sequential scanning method among TV scanning methods. That is, in the conventional LED module, one data signal transfers data signals to a plurality of LED lamp rows. As a result, according to the conventional scanning method applied to the LED module, there is a problem in that the delay time of data signal transmission is long and video display is not smooth.

The technical problem to be solved by an embodiment of the present invention is to provide an LED module for an electronic board adopting a scanning method having a short delay time of data signal transmission and smooth video display.

In order to achieve the above object, the LED module used in the display board according to an embodiment of the present invention is M (M is 1 <N <= 16 natural number) M (M is 1 <= M < LED lamp unit divided into 16 horizontal sections); An input unit through which the data signal is transmitted from the control module of the electronic display board so that at least one of a text, an image, and a video is displayed through the LED lamp unit; An output unit capable of outputting the data signal transmitted to the LED lamp unit to another adjacent LED module; And a module controller for controlling the blinking of the LED lamps according to a preset scanning method of the data signal transmitted through the input unit, wherein the module controller is located at an edge of an nth LED lamp row in an mth horizontal section. The data signal is transmitted from the lamp to the LED lamp located at the other edge of the LED lamp row in sequence, and the data signal is sequentially transmitted through the output unit. Output the data signal to the LED lamp unit.

In this case, the module control unit may start transmitting data signals to all LED lamp rows in one horizontal section at the same time, so that the LED lamps located in the same column in the horizontal section may simultaneously transmit data signals.

In addition, the module control unit includes l IC chips for transmitting data signals corresponding to each LED lamp row in one horizontal section, so that a total of n X l ICs are used to control the LED lamp rows in the horizontal section. Including a chip, the n X l IC chips are simultaneously received data signals in parallel connection with the input unit and can simultaneously transmit the data signal to the LED lamps located in the same column in the horizontal section, where l is 1 It is a natural number of <= l <= 3, which is the number of color kinds of LED lamps constituting the LED lamp unit.

On the other hand, the module for the display board is divided into two horizontal sections, the output of the lower horizontal section is connected to the upper horizontal section input, the data signal transmitted to the LED lamp unit of the lower horizontal section sequentially the upper Can be delivered to the LED lamp portion of the horizontal section of the.

Here, the module for the display board is divided into two horizontal sections, the input of the horizontal section at the bottom and the horizontal section input of the top is connected in parallel with the control module of the display board, the LED lamp unit and the horizontal section of the lower The data signal may be transmitted in parallel to the LED lamp unit in the horizontal section at the top.

Meanwhile, the input unit and the output unit may be composed of 24 data signal pins, 4 control signal pins, 1 clock signal pin, and 5 ground pins.

Accordingly, the present invention has an advantage of shortening the delay time of data signal transmission and an excellent image quality of data, particularly video display, displayed on the electronic display.

In addition, the present invention is easy to provide a timing signal for driving the LED module, there is an advantage that can reduce the possibility of error in the circuit for driving the LED module.

1 is a block diagram of an LED module according to an embodiment of the present invention.
2 is an exemplary view showing an LED module scanning method according to an embodiment of the present invention.
Figure 3 is an exemplary configuration of the back of the LED module according to an embodiment of the present invention.
Figure 4 is an exemplary view showing a pin configuration of the LED module input and output unit according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

The display board of the present invention is composed of an LED module, a control module (DVI controller, an embedded controller, etc.) and a case. The control module generates a data signal suitable for the LED module displayed on the display board and transmits it to the LED module. The LED module controls the blinking of the LED lamp according to the scanning method of the transmitted data signal. At this time, the present specification will be defined as the transmission method of the data signal for the flashing of the LED lamp.

Hereinafter, with reference to FIG. 1, the configuration of the LED module for an electronic board which is an embodiment of the present invention will be described in detail. 1 is a block diagram of an LED module according to an embodiment of the present invention. The LED module for an electronic board according to the present invention includes an LED lamp unit, an input unit, a module control unit, and an output unit.

The LED lamp unit includes a plurality of LED lamps. The electronic display board displays characters, images, and video equivalents through blinking of a plurality of LEDs formed in the LED lamp unit.

A plurality of LED lamps constitute a plurality of LED dots. At this time, the LED dot is located at the intersection of the row and column in front of the LED lamp unit, a plurality of LED dots to form the LED lamp row.

The LED lamp portion of the present invention is divided into a plurality of horizontal sections. In the present specification, for convenience of understanding and description, the case where the LED lamp unit is divided into two horizontal sections will be described as a representative example. However, the present invention is not limited thereto, and includes all cases in which the LED lamp unit is divided into multiple horizontal sections.

A detailed description of the LED lamp unit is shown in FIG. 2 as an example of the LED lamp unit, and details thereof will be described later with reference to FIG. 2.

The input unit receives a data signal from the control module of the display board. Here, the control module of the signboard is a DVI controller, an embedded controller.

For example, the input unit may include a connection port of the data line. In this case, the connection port may be provided for each horizontal section of the LED lamp unit. The connection port provided for each horizontal section is provided with a plurality of pins, and each pin is given a role corresponding to a signal suitable for the LED module for electric sign of the present invention.

Such an input unit is illustrated in a part of FIG. 3, for example, in detail in the description of FIG. 3.

The module controller controls the blinking of the LED lamps by a preset scanning method according to the transmitted data signal. Here, the preset scanning method means that the data signal is sequentially transmitted from the LED lamp located on one side to the LED lamp located on the other side in scanning one LED lamp row.

Conventional known scanning methods transmit a data signal after one LED lamp row is scanned, followed by another LED lamp row. However, the scanning method of the present invention transfers a data signal to one LED lamp row and outputs the corresponding data signal to another horizontal section (or another LED module) through the output unit 130 (to be described later).

As a result, the LED module of the present invention shortens the delay time of data signal transmission and is excellent in image quality of the data displayed on the electronic display board, especially video display. In addition, the LED module can easily provide a timing signal for driving the module, and can reduce an error occurrence probability of a circuit for driving.

The output unit can transmit the data signal transmitted to the LED lamp unit to another adjacent LED module (or an input unit of another horizontal section). The output unit may be implemented as a connection port composed of a plurality of pins as described above. This connection port is shown as part of FIG. 3 together with the input, and will be described in detail with the description of FIG. 3.

Hereinafter, the configuration of the LED lamp unit and the scanning method of the present invention will be described in detail with reference to FIG. 2. 2 is an exemplary view showing an LED module scanning method according to an embodiment of the present invention.

The LED lamp portion has a plurality of LED dots located at the intersection of rows and columns, forming a plurality of LED lamp rows and LED lamp columns.

In addition, the LED lamp unit of the present invention is divided into a plurality of horizontal sections, one horizontal section includes a plurality of LED lamp rows.

The present specification will be described as a representative example of the LED lamp unit implemented by 16 X 16 LED dots. However, the present invention is not limited to the color type of the LED lamp constituting the LED dot shown in Figure 2, the number of LED lamps, the number of LED dots constituting the LED lamp unit.

Referring to FIG. 2, the LED lamp unit is divided into an upper horizontal section and a lower horizontal section. Each horizontal section contains eight LED lamp rows. At this time, each LED lamp row is composed of 16 LED dots, each LED dot includes a total of three LED lamps, one each of a red LED lamp, a green LED lamp, a blue LED lamp.

LED board module of the present invention starts the data signal transmission from the LED lamp located at one edge of one LED lamp row, and sequentially transmits the data signal to the LED lamp located at the other edge of the LED lamp row. . The transmitted data signal is output through the output unit after the signal is transmitted to the corresponding LED lamp row.

As described above, the LED module for display board of the present invention has one or more scanning lines in one LED lamp row. For example, suppose that the LED dot is composed of three LED lamps, one for each of a red LED lamp, a green LED lamp, and a blue LED lamp, as shown in FIG. 2.

In this case, the LED module for the display board may have three corresponding scan lines in one lamp row. In more detail, a scan line transferring a data signal to one lamp row may include a scan line corresponding to a red LED lamp, a scan line corresponding to a green LED lamp row, and a scan line corresponding to a blue LED lamp row. This may be changed corresponding to the number of lamp color types of the LED dots.

2, the scanning line of the upper horizontal section is represented by the solid arrow. For convenience, only one scan line corresponding to one LED lamp row is illustrated, but may be implemented as three scan lines (color type) for each LED lamp row.

The LED module for the signboard can transmit data signals simultaneously along the scanning line indicated by the solid line in the upper horizontal section. In this way, the LED module for the display board receives the data signals simultaneously in the LED lamps in the same row in one horizontal section.

In the conventional scanning method of LED module for electronic board, one scan line transmits data signal to several LED lamp rows. For example, the progressive scan method scans data signals to all lamps of the LED module with one scan line. That is, the sequential scanning method transmits a data signal to one lamp row and then continuously transmits the data signal to another LED lamp row above (or below) without being output to another LED module.

However, the LED module for the display board of the present invention is output after one scan line transfers a data signal to one lamp row. And the LED module for display board of the present invention simultaneously transmits data signal to all LED lamp rows in one horizontal section.

As a result, the display board using the LED module of the present invention has a faster data transfer rate than the conventional LED module, and has a natural expressive power (image quality) when displaying characters or images.

In addition, the LED board using the LED module of the present invention, as described above, the LED lamps located in the same column to receive a data signal at the same time, it is possible to implement a timing signal more easily. The simple implementation of timing signals has the advantage of ease of circuit design and reduction of defective rates.

Meanwhile, after a data signal is transmitted to one horizontal section, the data signal may be transmitted to another horizontal section of the same LED module. In this case, the output of the lower horizontal section of FIG. 2 is connected to the input of the upper horizontal section. That is, after the data signal is transmitted to the lower horizontal section along the dotted line in FIG. 2, the data signal is transmitted along the solid line scanning line of the upper horizontal section.

Alternatively, the data signal may be transmitted to one horizontal section and then transferred to another LED module. That is, referring to FIG. 2, the first data signal is transmitted to the upper horizontal section and the second data signal is transmitted to the lower horizontal section. The first data signal is sequentially transmitted to the upper horizontal section of the other LED module, and the second data signal is sequentially transmitted to the lower horizontal section of the other LED module.

Hereinafter, the configuration of the rear surface of the LED module for the display board will be described in detail with reference to FIGS. 3 and 4. 3 is a diagram illustrating a configuration of a rear surface of an LED module according to an embodiment of the present invention, and FIG. 4 is a diagram illustrating a pin configuration of an LED module input / output unit according to an embodiment of the present invention.

The LED module for an electronic board of the present invention includes a module controller together with an input unit and an output unit. The control module unit may include a plurality of IC chips for controlling the blinking of the LED lamps for each color of one LED lamp row. Therefore, as shown in FIG. 2, when one LED dot is composed of LED lamps of three colors, and the LED lamp unit is implemented with 16 X 16 LED dots, the module control unit has more than 48 (= 3 X 16) ICs. Includes a chip. Since the lower horizontal section controls the LED lamp unit in a similar operation corresponding to the upper horizontal section, the upper horizontal section of FIG. 3 will be mainly described.

Specifically, in order to control the upper horizontal section, the module control unit R0, G0, B0, R1, G1, B1, R2, G2, B2, R3, G3, B3, R4, G4, B4, R5, G5, B5, R6 , IC chip of G6, B6, R7, G7, B7. At this time, the name of the IC chip is represented by the English alphabet means the color and the numeral means the LED lamp row.

For example, the R0 IC chip receives a data signal from the first connection port of the input unit and controls the blinking of the red LED lamps in the row of LED lamps indicated by dotted lines in FIG. The data signal is output through the first connection port of the output unit. As another example, the G0 IC chip receives a data signal from the first connection port of the input unit and controls the blinking of the green LED lamps in the row of the LED lamps indicated by dotted lines in FIG. The data signal is output through the first connection port of the output unit.

As such, the module controller of the present invention includes a plurality of IC chips to control the blinking of the LED lamps according to each scan line shown in FIG. 2. In this way, the module control unit enables a smooth display of texts, images, videos, and the like through the corresponding display board.

Meanwhile, the description of FIG. 2 has described a case in which the data signal output from each horizontal section is transmitted to another horizontal section of the same LED module or transmitted to another LED module. Referring to FIG. 3, when the output port is output to another horizontal section of the same LED module, the connection port 323 for outputting the lower horizontal section is connected to the connection port 311 of the upper horizontal section through the data cable. When the data signal is transmitted to another LED module, the upper and lower connection ports 311 and 313 to which the data signal is input are connected in parallel with the control module of the display board, and the upper and lower connection ports 321 and 323 to which the data signal is output are different. It is connected to the upper and lower input connection port of LED module.

Hereinafter, the role allocation of the pins included in the input / output connection port will be described with reference to FIG. 4.

4, in an exemplary embodiment of the present invention, each connection port for transmitting data signals may include 34 pins. 34 pins include 24 data signal pins, 4 control signal pins (R OE, G OE, B OE, / LE), 1 clock signal pin (for transmitting data signals to each IC chip from R0 to B7). CLK) and five ground pins.

The order and arrangement of the pins may be changed in conjunction with the module controller, and the present invention is not limited to the order and arrangement of FIG. 4.

110: LED module for display board 110: 120 input unit
130: output unit 140: module control unit
210: upper horizontal section 220: lower horizontal section
230: LED lamp row 240: LED dot
311: upper input unit 312: lower input unit
321: upper output unit 323: lower output unit

Claims (6)

In the LED module used for the electronic board,
An LED lamp unit including N (N is a natural number of 1 <N <= 16) LED lamp rows including M (M is a natural number of 1 <= M <16) horizontal sections;
An input unit through which the data signal is transmitted from the control module of the electronic display board so that at least one of a text, an image, and a video is displayed through the LED lamp unit;
An output unit capable of outputting the data signal transmitted to the LED lamp unit to another adjacent LED module; And
And a module controller for controlling the blinking of the LED lamps according to a preset scanning method of the data signal transmitted through the input unit.
The module control unit
Data signal transmission starts from the LED lamp located at the edge of the nth LED lamp row in the m-th horizontal section, and sequentially transmits the data signal to the LED lamp located at the other edge of the LED lamp row. The LED module for an electric signboard, characterized in that for transmitting the data signal is completed for the LED lamp row through the output unit, and transmits the data signal to the LED lamp unit.
The method of claim 1,
The module control unit
All LED lamp rows in one horizontal section is the data signal transmission is started at the same time, LED lamps located in the same column in the horizontal section is the data signal transmission is characterized in that at the same time.
The method of claim 1,
The module control unit
There are l IC chips for transmitting data signals corresponding to each LED lamp row in one horizontal section, including a total of n X l IC chips for controlling the LED lamp rows in the horizontal section.
Wherein the n X l IC chips receive data signals simultaneously through parallel connection with the input unit, and simultaneously transmit data signals to LED lamps positioned in the same column in the horizontal section.
In this case, l is a natural number of 1 <= l <= 3, which is the number of color types of the LED lamps constituting the LED lamp unit.
The method of claim 3,
The electronic board module
Divided into two horizontal sections, the output section of the lower horizontal section is connected to the input section of the upper horizontal section, the data signal transmitted to the LED lamp section of the lower horizontal section sequentially the LED lamp section of the upper horizontal section LED module for electronic board.
The method of claim 3,
The electronic board module
Divided into two horizontal sections, the lower horizontal section input and the upper horizontal section input are connected in parallel with the control module of the billboard, the LED lamp section of the lower horizontal section and the LED lamp of the horizontal section of the upper section. LED module for transmitting the data signal in parallel to the unit.
The method of claim 1,
The input unit and the output unit
An LED module for an electronic board, wherein each of the 24 data signal pins, four control signal pins, one clock signal pin, and five ground pins.

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