A visible light and infrared light compatible LED display device and method

Abstract

The present invention discloses a visible light and infrared light compatible LED display device and method. The LED display device comprises: a sending card, a receiving card and a light board. The light board has a visible light LED array and an infrared light LED array. The sending card is configured to send a working mode and image data to the receiving card; the receiving card is configured to receive the working mode and image data from the sending card and send the working mode from the sending card and the image data corresponding to the working mode to the light board. The light board is configured to receive the working mode from the receiving card and the image data corresponding to the working mode and display the working mode according to the image data corresponding to the working mode. The beneficial effect of the present invention is that it can perform both visible light mode display and infrared light mode display.

Description

Technical Field

[0001] The present invention relates to the field of LED display, and in particular to an LED display device and method compatible with visible light and infrared light. Background Art

[0002] Chinese patent CN116504174A "An LED display device, image display processing method and storage medium" (publication date: July 28, 2023) includes: an image processor, a display screen and multiple sending cards; the display screen has multiple groups of receiving cards, and the multiple sending cards correspond to the multiple groups of receiving cards one by one. Among them, the display screen is composed of visible light LEDs. That is, the display screen can only display in visible light mode, not infrared light mode. Summary of the invention

[0003] The technical problem to be solved by the present invention is that an LED display device cannot operate in an infrared light mode, and a LED display device and method that are compatible with visible light and infrared light are provided.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a visible light and infrared light compatible LED display device, comprising: a sending card, a receiving card and a light board. Wherein, the light board has a visible light LED array and an infrared light LED array. The sending card is configured to send the working mode and image data to the receiving card; the receiving card is configured to receive the working mode and image data from the sending card and send the working mode from the sending card and the image data corresponding to the working mode to the light board. The light board is configured to receive the working mode from the receiving card and the image data corresponding to the working mode and display the working mode according to the image data corresponding to the working mode. The beneficial effect is at least that the LED display device can perform both visible light mode display and infrared light mode display.

[0005] As a preferred solution of the LED display device, the visible light LED array and the infrared light LED array have respective row selectors and a common column driver; the light board further has a mode selector, and the mode selector is configured to select and enable the corresponding row selector according to the received working mode. The beneficial effect is at least that the visible light LED array and the infrared light LED array multiplex column drive, effectively reducing the number of driver chips used, and further reducing hardware costs.

[0006] As a preferred solution for the LED display device, the sending card is further configured to: determine whether the working mode to be sent by the sending card is the infrared light mode and whether the image data to be sent is RGB data; if both are true, convert the image data to be sent into grayscale data before sending. The beneficial effect is at least that: at the sending card end, the grayscale data conversion required for infrared light mode display is completed.

[0007] As a preferred solution for the LED display device, the receiving card is further configured to: determine whether the working mode from the sending card is the visible light mode or the infrared light mode: if the working mode of the sending card is the visible light mode, directly use the image data from the sending card as the image data corresponding to the working mode; if the working mode of the sending card is the infrared light mode, further determine whether the image data from the sending card is RGB data or grayscale data: if the image data from the sending card is RGB data, convert the image data into grayscale data, and use the converted image data as the image data corresponding to the working mode; if the image data from the sending card is grayscale data, directly use the image data as the image data corresponding to the working mode. The beneficial effect is at least that: at the receiving card end, the grayscale data conversion required for infrared light mode display is completed.

[0008] As a preferred solution for the LED display device, the light board is further configured to: determine whether the received working mode is a visible light mode or an infrared light mode; if the received working mode is a visible light mode, the mode selector selects to enable the visible light row selector, and the visible light row selector and the column driver jointly control the visible light LED array to display in the visible light mode according to the image data corresponding to the working mode; if the working mode is an infrared light mode, the mode selector selects to enable the infrared light row selector, and the infrared light row selector and the column driver jointly control the infrared light LED array to display in the infrared light mode according to the image data corresponding to the working mode.

[0009] Another technical solution provided by the present invention is a visible light and infrared light compatible LED display method, comprising: Providing the LED display device; The sending card sends the working mode and image data to the receiving card; The receiving card receives the working mode and image data from the sending card and sends the working mode from the sending card and the image data corresponding to the working mode to the light board; and, The light board receives the working mode and the image data corresponding to the working mode from the receiving card and displays the working mode according to the image data corresponding to the working mode.

[0010] The beneficial effect is at least that the LED display method can perform both visible light mode display and infrared light mode display.

[0011] As a preferred solution of the LED display method, the sending card determines whether the working mode to be sent by the sending card is the infrared light mode and whether the image data to be sent is RGB data; if both are true, the image data to be sent is converted into grayscale data before sending. The beneficial effect is at least that: at the sending card end, the grayscale data conversion required for infrared light mode display is completed.

[0012] As a preferred solution of the LED display method, the receiving card determines whether the working mode from the sending card is the visible light mode or the infrared light mode: if the working mode of the sending card is the visible light mode, the image data from the sending card is directly used as the image data corresponding to the working mode; if the working mode of the sending card is the infrared light mode, it is further determined whether the image data from the sending card is RGB data or grayscale data: if the image data from the sending card is RGB data, the image data is converted into grayscale data, and the converted image data is used as the image data corresponding to the working mode; if the image data from the sending card is grayscale data, the image data is directly used as the image data corresponding to the working mode. The beneficial effect is at least that: at the receiving card end, the grayscale data conversion required for infrared light mode display is completed.

[0013] As a preferred solution of the LED display method, the light board determines whether the received working mode is a visible light mode or an infrared light mode; if the received working mode is a visible light mode, the mode selector selects to enable the visible light row selector, and the visible light row selector and the column driver jointly control the visible light LED array to display in the visible light mode according to the image data corresponding to the working mode; if the working mode is an infrared light mode, the mode selector selects to enable the infrared light row selector, and the infrared light row selector and the column driver jointly control the infrared light LED array to display in the infrared light mode according to the image data corresponding to the working mode.

[0014] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the beneficial effects brought about by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the beneficial effects brought about by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a structural schematic diagram of an embodiment of an LED display device of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of a lamp board in an embodiment of an LED display device of the present invention.

[0017] Figure 3 It is a working flow chart of the sending card in the LED display device embodiment of the present invention.

[0018] Figure 4 It is a working flow chart of the receiving card in the LED display device embodiment of the present invention.

[0019] Figure 5 It is a working flow chart of the light board in the LED display device embodiment of the present invention.

[0020] Figure 6 It is a method flow chart of an embodiment of the LED display method of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below by means of specific embodiments in combination with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] See also Figure 1 , the figure shows a LED display device compatible with visible light and infrared light. The LED display device can display in both visible light mode and infrared light mode. The LED display device includes: a signal source, a sending card 1, a receiving card 2 and a light board 3. The signal source is connected to the sending card 1 for communication. The sending card 1 is connected to the receiving card 2 for communication. The receiving card 2 is connected to the light board 3 for communication. The light board 3 has a visible light LED array 31 and an infrared light LED array 32.

[0023] For specific implementation, see Figure 2, the visible light LED array 31 and the infrared light LED array 32 have their own row selectors. That is, the visible light LED array 31 has a visible light row selector 33, and the infrared light LED array 32 has an infrared light row selector 34. The light board 3 further has a mode selector 36. The mode selector 36 is respectively connected to the visible light row selector 33 and the infrared light row selector 34 for communication. The mode selector 36 is used to control the visible light row selector 33 and the infrared light row selector 34 to select one of them to be enabled. The visible light LED array 31 and the infrared light LED array 32 have a common column driver 35. That is, the visible light LED array 31 and the infrared light LED array 32 reuse the column driver 35.

[0024] The sending card 1 is configured to send the working mode and image data to the receiving card 2. In specific implementation, the image data is determined by the signal source. The image data can be RGB data or grayscale data. The user determines whether the working mode sent by the sending card 1 is the visible light mode or the infrared light mode through the setting interface of the sending card 1 or control instructions.

[0025] Preferably, see Figure 3 , the sending card 1 is further configured to: determine whether the working mode to be sent by the sending card 1 is the infrared light mode and whether the image data to be sent is RGB data. If both are true, the image data to be sent is converted into grayscale data before sending. The purpose is to save the steps of converting the image data by the receiving card 2.

[0026] The receiving card 2 is configured to: receive the working mode and image data from the sending card 1 and send the working mode and image data corresponding to the working mode from the sending card 1 to the light board 3. For specific implementation, see Figure 4 , the receiving card 2 is further configured to: determine whether the working mode from the sending card 1 is the visible light mode or the infrared light mode: if the working mode of the sending card 1 is the visible light mode, directly use the image data from the sending card 1 as the image data corresponding to the working mode. If the working mode of the sending card 1 is the infrared light mode, further determine whether the image data from the sending card 1 is RGB data or grayscale data: if the image data from the sending card 1 is RGB data, convert the image data into grayscale data, and use the converted image data as the image data corresponding to the working mode; if the image data from the sending card 1 is grayscale data, directly use the image data as the image data corresponding to the working mode.

[0027] The light board 3 is configured to: receive the working mode and the image data corresponding to the working mode from the receiving card 2 and display the working mode according to the image data corresponding to the working mode. Figure 5 , the light board 3 is further configured to: determine whether the received working mode is a visible light mode or an infrared light mode. If the received working mode is a visible light mode, the mode selector 36 selects to enable the visible light row selector 33, and the visible light row selector 33 and the column driver 35 jointly control the visible light LED array 31 to display in a visible light mode according to the image data corresponding to the working mode, during which the infrared light row selector 34 is not enabled, that is, the infrared light LED array 32 is in a non-working state. If the working mode is an infrared light mode, the mode selector 36 selects to enable the infrared light row selector 34, and the infrared light row selector 34 and the column driver 35 jointly control the infrared light LED array 32 to display in an infrared light mode according to the image data corresponding to the working mode, during which the visible light row selector 33 is not enabled, that is, the visible light LED array 31 is in a non-working state. Thus, the LED display device can realize the switching use of visible light mode display and infrared light mode display.

[0028] See also Figure 6 , the figure shows a LED display method that is compatible with visible light and infrared light. The LED display method includes: The sending card 1 sends the working mode and image data to the receiving card 2. Preferably, it is determined whether the working mode to be sent by the sending card 1 is the infrared light mode and whether the image data to be sent is RGB data. If both are true, the image data to be sent is converted into grayscale data before being sent.

[0029] The receiving card 2 receives the working mode and image data from the sending card 1 and sends the working mode from the sending card 1 and the image data corresponding to the working mode to the light board 3. In specific implementation, it is determined whether the working mode from the sending card 1 is the visible light mode or the infrared light mode: if the working mode of the sending card 1 is the visible light mode, the image data from the sending card 1 is directly used as the image data corresponding to the working mode. If the working mode of the sending card 1 is the infrared light mode, it is further determined whether the image data from the sending card 1 is RGB data or grayscale data: if the image data from the sending card 1 is RGB data, the image data is converted into grayscale data, and the converted image data is used as the image data corresponding to the working mode; if the image data from the sending card 1 is grayscale data, the image data is directly used as the image data corresponding to the working mode.

[0030] The light board 3 receives the working mode and the image data corresponding to the working mode from the receiving card 2 and displays the working mode according to the image data corresponding to the working mode. In the specific implementation, it is determined whether the received working mode is a visible light mode or an infrared light mode. If the received working mode is a visible light mode, the mode selector 36 selects to enable the visible light row selector 33, and the visible light row selector 33 and the column driver 35 jointly control the visible light LED array 31 to display the visible light mode according to the image data corresponding to the working mode, during which the infrared light row selector 34 is not enabled, that is, the infrared light LED array 32 is in a non-working state. If the working mode is an infrared light mode, the mode selector 36 selects to enable the infrared light row selector 34, and the infrared light row selector 34 and the column driver 35 jointly control the infrared light LED array 32 to display the infrared light mode according to the image data corresponding to the working mode, during which the visible light row selector 33 is not enabled, that is, the visible light LED array 31 is in a non-working state.

[0031] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A visible light and infrared light compatible LED display device, characterized in that: include: A sending card, a receiving card and a light board, wherein the light board has a visible light LED array and an infrared light LED array; the sending card is configured to: send a working mode and image data to the receiving card; the receiving card is configured to: receive the working mode and image data from the sending card and send the working mode from the sending card and the image data corresponding to the working mode to the light board; the light board is configured to: receive the working mode from the receiving card and the image data corresponding to the working mode and display the working mode according to the image data corresponding to the working mode.

2. The LED display device according to claim 1, characterized in that: The visible light LED array and the infrared light LED array have respective row selectors and a common column driver; the light board further has a mode selector, and the mode selector is configured to: select and enable the corresponding row selector according to the received working mode.

3. The LED display device according to claim 1 or 2, characterized in that: The sending card is further configured to: determine whether the working mode to be sent by the sending card is the infrared light mode and whether the image data to be sent is RGB data; if both are true, convert the image data to be sent into grayscale data before sending.

4. The LED display device according to claim 1 or 2, characterized in that: The receiving card is further configured to: determine whether the working mode from the sending card is the visible light mode or the infrared light mode: if the working mode of the sending card is the visible light mode, directly use the image data from the sending card as the image data corresponding to the working mode; if the working mode of the sending card is the infrared light mode, further determine whether the image data from the sending card is RGB data or grayscale data: if the image data from the sending card is RGB data, convert the image data into grayscale data, and use the converted image data as the image data corresponding to the working mode; if the image data from the sending card is grayscale data, directly use the image data as the image data corresponding to the working mode.

5. The LED display device according to claim 2, characterized in that: The light board is further configured to: determine whether the received working mode is a visible light mode or an infrared light mode; if the received working mode is a visible light mode, the mode selector selects to enable the visible light row selector, and the visible light row selector and the column driver jointly control the visible light LED array to display in a visible light mode according to the image data corresponding to the working mode; if the working mode is an infrared light mode, the mode selector selects to enable the infrared light row selector, and the infrared light row selector and the column driver jointly control the infrared light LED array to display in an infrared light mode according to the image data corresponding to the working mode.

6. A visible light and infrared light compatible LED display method, characterized in that: include: Provide the LED display device according to claim 1 or 2; The sending card sends the working mode and image data to the receiving card; The receiving card receives the working mode and image data from the sending card and sends the working mode from the sending card and the image data corresponding to the working mode to the light board; and, The light board receives the working mode and the image data corresponding to the working mode from the receiving card and displays the working mode according to the image data corresponding to the working mode.

7. The LED display method according to claim 6, characterized in that: The sending card determines whether the working mode to be sent by the sending card is the infrared light mode and whether the image data to be sent is RGB data; if both are true, the image data to be sent is converted into grayscale data before sending.

8. The LED display method according to claim 6, characterized in that: The receiving card determines whether the working mode from the sending card is the visible light mode or the infrared light mode: if the working mode of the sending card is the visible light mode, the image data from the sending card is directly used as the image data corresponding to the working mode; if the working mode of the sending card is the infrared light mode, it is further determined whether the image data from the sending card is RGB data or grayscale data: if the image data from the sending card is RGB data, the image data is converted into grayscale data, and the converted image data is used as the image data corresponding to the working mode; if the image data from the sending card is grayscale data, the image data is directly used as the image data corresponding to the working mode.

9. The LED display method according to claim 6, characterized in that: The light board determines whether the received working mode is a visible light mode or an infrared light mode; if the received working mode is a visible light mode, the mode selector selects to enable the visible light row selector, and the visible light row selector and the column driver jointly control the visible light LED array to display in a visible light mode according to the image data corresponding to the working mode; if the working mode is an infrared light mode, the mode selector selects to enable the infrared light row selector, and the infrared light row selector and the column driver jointly control the infrared light LED array to display in an infrared light mode according to the image data corresponding to the working mode.

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