KR20100013245A - Led display using for scanner pen - Google Patents

Abstract

PURPOSE: An LED display using a scanning pen is provided to control a screen directly near the LED display by controlling the display at a distant computer according to a predetermined command stored in two dimensional barcode when the scanning pen approaches the barcode by a user. CONSTITUTION: A display(1) includes a plurality of LED modules combining a protective cover in the front side of an LED substrate. The LED module includes two-dimensional barcodes(15) recognized by a scanning pen. The data value of two-dimensional barcode recognized by the scanning pen is transmitted to an external computer(30) through a communication unit(25). The data value of two-dimensional barcode transmitted to the external computer is displayed as a preset character or figure. Two-dimensional barcode is included in the bottom of the protective cover. The two-dimensional barcode includes the identification number, the data value, the manufacturer, the manufacturing station and the manufacturing date of the LED module.

Description

LED display using optical pen {LED display using for scanner pen}

The present invention relates to an LED display, having a two-dimensional bar code read by an optical pen at a lower end of the LED module, and when a user approaches the optical pen to a two-dimensional bar code, the two-dimensional bar code obtained by the optical pen The data value of the present invention relates to an LED display using an optical pen, which is transmitted to an external computer through a communication unit to display a predetermined character or figure on the display.

In the conventional electronic board, three LED devices displaying color light of red (R), green (G), and blue (B) are composed of one LED pixel, and a plurality of LED pixels are formed in a matrix form. It is produced by an LED module configured to be arranged to display an image.

In this case, the LED display board used as a color image display system requires M × N LED pixels for displaying images each with M × N resolution, and one LED pixel includes three colors of R, G, and B colors. Since a total of 3 x M x N LED elements are required because of LEDs, for example, 3 x 640 x 480 (921,600) LED elements are required in an LED display having a resolution of 640 x 480.

In this case, the LED display board may be used to display text or picture information in a showroom, etc. The LED display board is not provided with any means for controlling the image information (text or picture information) currently displayed. For a show, etc., a separate assistive technician had to control image information directly from a computer connected to the LED display board.

The present invention is to solve the above problems, provided with a two-dimensional barcode read by the optical recognition pen at the lower end of the LED module, when the user closes the optical recognition pen to the two-dimensional barcode, the optical recognition pen It is an object of the present invention to provide an LED display using an optical recognition pen, characterized in that the data value included in the obtained two-dimensional bar code is transmitted to an external computer through a communication unit to display a predetermined character or figure on the display.

LED display using the optical recognition pen according to the present invention is a display is composed of a plurality of LED modules coupled to the protective cover on the front of the LED substrate, the lower end of the LED module is read by the optical recognition pen is a two-dimensional barcode When the user approaches the optical recognition pen close to the two-dimensional barcode, the data value of the two-dimensional barcode obtained from the optical recognition pen is transmitted to an external computer through a communication unit to display a predetermined character or figure on the display. It features.

In the LED display using the optical recognition pen according to the present invention, when the user approaches the optical recognition pen 20 to the two-dimensional barcodes 15, 15a, 15b, and 15c, the two-dimensional barcodes 15, 15a ( By controlling the display 1 in the external computer 40 according to a command specified in advance in 15b) and 15c, there is an effect that the user can directly control the screen directly from the LED display without a separate assistant.

In addition, by replacing the memory 24 with the optical recognition pen 20, it is possible to execute a variety of commands for the image information displayed on the display (1).

In addition, the two-dimensional barcode (15) (15a) (15b) (15c) provided on the LED substrate 11 to manage the production history including the manufacturer, place of manufacture, time of manufacture, LED spec (LED Spec), There is an effect of improving the maintenance convenience.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing the LED display using the optical recognition pen according to the present invention, Figure 2 is an exploded perspective view schematically showing each LED module constituting the display of Figure 1, Figure 3 is used in the present invention One embodiment of a two-dimensional bar code, Figure 4 is a schematic diagram showing a state of reading a two-dimensional bar code by the optical recognition pen according to the present invention, Figure 5 schematically shows the configuration of the optical recognition pen according to the present invention 6 is a block diagram of an LED display using the optical recognition pen according to the present invention, and FIG. 7 is a diagram showing a state of use of the LED display using the optical recognition pen as an embodiment of the present invention.

The LED display using the optical recognition pen according to the present invention, as shown in Figure 1, is composed of a plurality of LED module 10, the protective cover 13 is coupled to the front surface of the LED substrate (11).

At this time, as an embodiment of the present invention, the lower end of the LED module 10 is provided with a two-dimensional barcode 15, 15a, 15b, 15c that is read by the optical recognition pen 20, the user The optical recognition pen 20 is approached to the two-dimensional barcode 15 to obtain a data value included in the two-dimensional barcode, and the data value of the obtained two-dimensional barcode is transmitted to the external computer 30 through the communication unit 25. The external computer 30 controls to display a predetermined character or figure on the display 1 again.

At this time, the two-dimensional barcode 15 is provided on one side lower end of the protective cover 13 coupled to the front surface of the LED module 10, as another embodiment of the present invention is provided on one side lower end of the LED substrate 11 The location of the two-dimensional barcode 15a may be determined by various embodiments depending on the production environment and the use environment, such as a method in which the two-dimensional barcode 15a is exposed to the outside through the protective cover 13.

As shown in FIG. 2, the LED substrate 11 includes three LED elements displaying color light of red (R), green (G), and blue (B), and one LED pixel. And a plurality of LED pixels arranged in a matrix to display an image.

In addition, the protective cover 13 has a plurality of through-holes 14 are formed in the position corresponding to the LED pixel 12, two-dimensional including the identification number (ID) and data value of each LED module 10 on one side The barcode is displayed. At this time, the through hole 14 has a shape of the upper and lower strait (上 대응 下 狹) so as to correspond to the emission angle of the LED illumination light, the illumination light emitted from the LED pixel 12 is condensed in the through hole 14 is emitted. . (I.e., the aperture serves as the lens hood of the camera)

The two-dimensional barcode is a well-known technique currently used in many fields, and unlike a general one-dimensional barcode in which a plurality of straight lines having different widths are arranged inside the rectangle, a plurality of dots are planar as shown in FIG. 3. ) Is arranged under a certain rule, so that more information can be recorded as compared with a conventional one-dimensional barcode.

In addition, as another embodiment of the present invention, the two-dimensional barcodes 15b and 15c may be provided to each of the LED pixels 12.

That is, the two-dimensional bar code 15b is provided below each through hole 14 formed in the protective cover 13 or the two-dimensional bar code 15c is provided below each LED pixel 12 of the LED substrate 11. Various installation methods such as a method of exposing to the outside through the protective cover 13 may be used.

This is to utilize the two-dimensional bar code (15b) (15c) in the unit of the LED pixel 12, thereby enabling the display of the character or image information of the sharper picture quality on the LED display (1).

The two-dimensional barcodes 15, 15a, 15b, and 15c are not only identification numbers (IDs) and data values of each LED module 10 or LED pixel 12, but also each LED module 10 or LED pixel ( 12) manufacturer, place of manufacture, time of manufacture, and LED Spec (LED Spec) will be included, thereby improving the maintenance convenience of the product by managing the production history of the LED module (10) or LED pixel (12) Will be.

Meanwhile, as shown in FIG. 4, the optical recognition pen 20 according to the present invention uses the optical recognition unit 21 provided at the tip of the optical recognition pen 20 as a two-dimensional bar code 15, 15a, 15b ( The image is taken close to 15c), and the optical recognition unit 21 includes an infrared LED and a CCD camera.

Hereinafter, the configuration of the optical recognition pen 20 used in the present invention will be described in more detail.

As shown in FIG. 5, the optical recognition pen 20 of the present invention is an optical recognition device (scanner) in the form of a writing instrument, and reads the data value included in the two-dimensional bar code by the camera module. Optical recognition unit 21 for transmitting to; An image processor 22 which removes noise from image information transmitted from the optical recognition unit 21 and extracts a two-dimensional barcode; A CPU (23) for generating a predetermined control signal by comparing the two-dimensional barcode transmitted from the image processor 22 with a data value previously stored in the memory 24; It is configured to include a communication unit 25 for transmitting the control signal generated by the CPI 23 to the outside wirelessly or wired.

At this time, since the memory 24 is detachably attached and replaceable, the user can exchange and use a desired memory card according to the usage environment and purpose. This is a technical specificity of the present invention that allows the optical recognition pen 20 to perform different operations according to the inserted memory card even when the optical recognition pen 20 is close to the two-dimensional barcodes 15, 15a, 15b and 15c at the same position. The operation state will be described later.

Therefore, the LED display using the optical recognition pen according to the present invention is operated as shown in FIG.

First, when the optical recognition pen 20 is brought close to the two-dimensional barcodes 15, 15a, 15b, and 15c of the LED module 10, the optical recognition unit 21 uses the two-dimensional barcodes 15, 15a, and 15b. 15c is photographed and transmitted to the image processor 22. The image processor 22 extracts only the two-dimensional bar code 15 through a signal processing process such as removing noise and transmits the image to the CPI 23. The CPI 23 generates a predetermined control signal according to a data value previously stored in the memory 24 and transmits the predetermined control signal to the communication unit 25. The communication unit 25 transmits the control signal to the external computer 30 by wire or wirelessly. ) To control the display (1).

In this case, the memory 24 stores a corresponding command in advance so that a predetermined operation is performed according to the data value included in the two-dimensional barcode in advance.

For example, the memory 24 stores an instruction table pre-coded with instructions that match each of the two-dimensional barcodes 15, 15a, 15b, and 15c. When the two-dimensional barcode is input, The command is transmitted to the CPI (23).

That is, as shown in FIG. 6, in configuring the screen to sequentially display a plurality of images, the data value of the two-dimensional barcode 15 provided in the first row and four column LED modules 10 ₁₄ on the left is stored in a memory ( 24) and coded to correspond to the command to bring up the 'previous' screen, and the data value of the two-dimensional bar code (15) provided in the 5 row 4 column LED module (10 ₅₄ ) on the right to the 'next' screen in the memory (24) Coding so as to correspond to an instruction to be called, the user can freely change the screen display by bringing the optical pen close to the two-dimensional barcode 15.

In other words, each two-dimensional bar code 15 serves as a switch for performing a predetermined command to the memory 24, so that the user can approach the memory 24 by bringing the optical pen 20 close to the two-dimensional bar code 15. Pre-specified commands can be executed.

Therefore, when the user replaces the memory 24 inserted into the optical recognition pen 20, when the optical recognition pen 20 approaches the two-dimensional barcode 15 provided in the above-described LED module 10 ₅₄ , Next 'does not work, and completely separate operations such as' screen reduction' can be performed.

The present invention as described above is not limited to the above-described specific embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various changes without departing from the gist of the present invention as claimed in the claims. will be.

1 is a perspective view schematically showing an LED display using an optical recognition pen according to the present invention,

FIG. 2 is an exploded perspective view schematically illustrating each LED module constituting the display of FIG. 1;

3 is an embodiment of a two-dimensional barcode used in the present invention,

4 is a schematic diagram schematically showing a state of reading a two-dimensional bar code by the optical recognition pen according to the present invention;

5 is a schematic diagram schematically showing the configuration of an optical recognition pen according to the present invention;

6 is a block diagram of an LED display using the optical recognition pen according to the present invention;

Figure 7 is an embodiment of the present invention, the state of use of the LED display using the optical pen.

<Description of Symbols for Major Parts of Drawings>

1: display

10: LED module 11: LED board

12: LED Pixel 13: Protective Cover

14: through-hole 15, 15a, 15b, 15c: two-dimensional barcode

20: optical recognition pen 21: optical recognition unit

22: image processor 23: CPU (CPU)

24: memory 25: communication unit

30: external computer

Claims (9)

The display 1 is formed by a plurality of LED modules 10 having a protective cover 13 coupled to the front surface of the LED substrate 11, and the LED module 10 is read by the optical recognition pen 20. Two-dimensional barcodes 15, 15a, 15b and 15c are provided, The data value of the two-dimensional barcode obtained by the optical recognition pen 20 in proximity to the two-dimensional barcode 15, 15a, 15b, and 15c is transmitted to the external computer 30 through the communication unit 25 to display the display 1. LED display using an optical pen, characterized in that to display a predetermined character or figure). The method of claim 1, The two-dimensional barcode 15 is provided on one side lower end of the protective cover 13, LED display using the optical recognition pen, characterized in that it comprises an identification number (ID) and data values of each LED module 10, and the manufacturer, the place of manufacture, the time of manufacture, LED specifications (LED Spec). The method of claim 1, The two-dimensional barcode (15a) is provided at one side lower end of the LED substrate 11 is exposed to the outside through the protective cover 13, LED display using the optical recognition pen, characterized in that it comprises an identification number (ID) and data values of each LED module 10, and the manufacturer, the place of manufacture, the time of manufacture, LED specifications (LED Spec). The method of claim 1, The LED substrate 11 is composed of one LED pixel 12 comprising three LED elements displaying color light of red (R), green (G), and blue (B), and a plurality of LED pixels. Is arranged in a matrix form to display an image, LED display using the optical recognition pen, characterized in that the protective cover 13 is formed with a plurality of through-holes 14 in the position corresponding to each LED pixel 12. The method of claim 4, wherein The through hole 14 has a shape of the upper and lower strait so as to correspond to the emission angle of the LED illumination light, the illumination light emitted from the LED pixel is condensed and emitted from the through hole 14 LED display using a recognition pen. The method of claim 1, The two-dimensional barcode 15b is provided below each through hole 14 formed in the protective cover 13, LED display using the optical recognition pen, characterized in that it comprises an identification number (ID) and a data value of each LED pixel (12). The method of claim 1, The two-dimensional bar code 15c is provided below each LED pixel 12 of the LED substrate 11 is exposed to the outside through the protective cover 13, LED display using the optical recognition pen, characterized in that it comprises an identification number (ID) and a data value of each LED pixel (12). The method of claim 1, The optical recognition pen 20 includes an optical recognition unit 21 which reads the two-dimensional barcode 15 by the camera module and transmits it to the image processing unit 22; An image processor 22 for removing noise from the image information transmitted from the optical recognition unit 21 and extracting a two-dimensional barcode 15; CPI (23) for generating a predetermined control signal by comparing the data value of the two-dimensional barcode 15 transmitted from the image processing unit 22 with the data value previously stored in the memory (24); A communication unit 25 for transmitting the control signal generated by the CPI 23 to the outside by wireless or wired; LED display using an optical recognition pen, characterized in that comprises a. The method of claim 8, The memory (24) is an LED display using an optical pen, characterized in that the removable pen coupled to the optical recognition pen 20.

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