Lamp panel circuit capable of synchronously emitting light on side wall of advertising machine

Abstract

The utility model relates to a lamp panel circuit capable of synchronously emitting light on side walls of an advertising machine, which is used for adjusting atmosphere lamps on two side frames of the advertising machine and comprises an HDMI (High Definition Multimedia Interface) color picking module, a lamp bead driving module and at least one LED (Light Emitting Diode) lamp bead string group, the lamp bead driving module is used for adjusting each LED lamp bead in the LED lamp bead string group according to data extracted by the HDMI color picking module, so that the colors and the brightness of frames on the two sides of the advertising machine are changed along with the change of the display content of the liquid crystal display screen, and the color of the whole advertising machine is more coordinated and vivid; and the published information content is more expressive.

Description

Technical Field

[0001] The utility model relates to the technical field of advertising machines, in particular to a lamp board circuit capable of synchronously emitting light on the side wall of an advertising machine. Background Art

[0002] The advertising machine is a complete advertising broadcast control system composed of terminal software control, network information transmission and multimedia terminal display. It can carry out advertising, broadcast weather forecasts or foreign exchange rates, etc. through multimedia information such as pictures, texts, videos, small plug-ins, etc. The advertising machine has the characteristics of intelligent interaction, public service, and entertainment interaction, so that it can be used for information / advertising release in the local area network of buildings, banks, exhibitions, stations, and office places.

[0003] The frame of the existing advertising machine is usually made of metal baffles or decorated with monochromatic light, which makes the whole advertising machine look dull. Utility Model Content

[0004] In view of this, it is necessary to provide a light board circuit for synchronously emitting light on the side wall of an advertising machine with adjustable border color and brightness and simple structure.

[0005] A light board circuit for synchronously emitting light on the side wall of an advertising machine, used for adjusting the atmosphere lights of the two side frames of the advertising machine, comprises an HDMI color picking module, a lamp bead driving module and at least one LED lamp bead string group, wherein the input end of the HDMI color picking module is connected to the HDMI interface of a liquid crystal display screen, the output end of the HDMI color picking module is connected to the input end of the lamp bead driving module, the LED lamp bead string group is connected to the output end of the lamp bead driving module, the HDMI color picking module is used for extracting the display color signal of the edge of the liquid crystal display screen, the lamp bead driving module adjusts the color and brightness of each LED lamp bead in the LED lamp bead string group according to the edge color of the liquid crystal display screen extracted by the HDMI color picking module, so that the color of the frame of the advertising machine changes synchronously with the display content of the liquid crystal display screen.

[0006] Preferably, the lamp bead driving module includes a lamp bead driving chip U1, the data input pin DIN of the lamp bead driving chip U1 is connected to the output end of the HDMI color picking module, and the three LED driving output ends OUTR, OUTG, and OUTB of the lamp bead driving chip U1 are connected to the input end of the LED lamp bead string group.

[0007] Preferably, when a plurality of the lamp bead driving chips U1 are cascaded, the data output terminal DO of the lamp bead driving chip U1 is connected to the data input terminal DIN of the lamp bead driving chip U1 of the next stage.

[0008] Preferably, the LED lamp bead string group includes a plurality of LED lamp beads connected in series, and the LED lamp beads have three color channels of red, green and blue. The red, green and blue color channels of the first LED lamp bead in the LED lamp bead string group are respectively connected to the three LED driving output terminals OUTR, OUTG and OUTB of the lamp bead driving chip U1, and present different colors under the drive of the display data signal.

[0009] Preferably, the number of LED lamp beads included in the LED lamp bead string group is adapted to the size of the liquid crystal display screen.

[0010] Preferably, the input end of the HDMI color picking module is connected to the driving device of the LCD display, and the edge color and display brightness of the LCD display are extracted from the driving data stream of the LCD display. The output end of the HDMI color picking module is connected to the input end of the lamp bead driving module.

[0011] Preferably, the HDMI color picking module includes a data acquisition module and a data processing module, the input end of the data acquisition module is connected to the HDMI interface of the driving device of the liquid crystal display screen, and after acquiring the display data of the liquid crystal display screen and extracting the color data of the edge of the display screen, it is transmitted to the data processing module; the output end of the data acquisition module is connected to the input end of the data processing module, and the data processing module converts the extracted color data of the edge of the display screen into the color temperature and brightness signals of the LED lamp beads, and transmits them to the lamp bead driving module.

[0012] In the above-mentioned advertising machine side wall synchronously emitting light board circuit, the HDMI color acquisition module extracts the color and brightness data of the edge of the image displayed on the liquid crystal display screen, and the lamp bead driving module adjusts each LED lamp bead in the LED lamp bead string group according to the data extracted by the HDMI color acquisition module, so that the color and brightness of the two side frames of the advertising machine change with the display content of the liquid crystal display screen, making the whole color of the advertising machine more coordinated and vivid, and the information content released more expressive. The product structure of the utility model is simple, easy to produce, low cost, and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural block diagram of a light board circuit for synchronously emitting light on the side wall of an advertising machine according to an embodiment of the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the circuit structure of the lamp bead driving module of the lamp board circuit for synchronously emitting light on the side wall of the advertising machine according to the embodiment of the present utility model.

[0015] Figure 3The utility model is a circuit connection structure diagram of the HDMI color picking module of the light board circuit for synchronously emitting light on the side wall of the advertising machine according to the embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0017] See also Figure 1 , showing a lamp board circuit for synchronously emitting light on the side wall of an advertising machine provided by an embodiment of the utility model, which is used to adjust the atmosphere lights of the two side frames of the advertising machine, including an HDMI color picking module, a lamp bead driving module and at least one LED lamp bead string group, the input end of the HDMI color picking module is connected to the HDMI interface of the liquid crystal display screen, the output end of the HDMI color picking module is connected to the input end of the lamp bead driving module, the LED lamp bead string group is connected to the output end of the lamp bead driving module, the HDMI color picking module is used to extract the display color signal of the edge of the liquid crystal display screen, the lamp bead driving module adjusts the color and brightness of each LED lamp bead in the LED lamp bead string group according to the edge color of the liquid crystal display screen extracted by the HDMI color picking module, so that the color of the frame of the advertising machine changes synchronously with the display content of the liquid crystal display screen.

[0018] Specifically, in this embodiment, the advertising machine is in the shape of a rectangular parallelepiped, and a liquid crystal display screen is installed on the front and back respectively, for displaying relevant content externally. The frame between the two liquid crystal displays is installed with the light guide plate, and the two sides of the light guide plate are respectively close to the two liquid crystal displays, and the displayed color is the same as the background color displayed by the liquid crystal display screen, and changes synchronously with the changes of the content displayed on the liquid crystal display screen, so as to increase the overall atmosphere of the advertising machine.

[0019] Specifically, the advertising machine also includes a chassis shell and a light guide plate, the front and back of the chassis shell are respectively equipped with liquid crystal display screens, the light guide plate is installed on the two side frames of the chassis shell, and the LED lamp bead string group is installed on the light incident side of the light guide plate.

[0020] Preferably, see Figure 2 The lamp bead driving module includes a lamp bead driving chip U1, the data input pin DIN of the lamp bead driving chip U1 is connected to the output end of the HDMI color picking module, and the three LED driving output ends OUTR, OUTG, and OUTB of the lamp bead driving chip U1 are connected to the input end of the LED lamp bead string group.

[0021] Preferably, when a plurality of the lamp bead driving chips U1 are cascaded, the data output terminal DO of the lamp bead driving chip U1 is connected to the data input terminal DIN of the lamp bead driving chip U1 of the next stage.

[0022] Specifically, see Figure 3 In this embodiment, the Android board outputs the HDMI signal and transmits it to the HDMI IN port of the HDMI color picking module, and then outputs it to the lamp bead driver chip U1 through the HDMI OUT port of the HDMI color picking module. The lamp bead driver chip U1 then outputs it to the DP IN port of another lamp bead driver chip U1 through the DP OUT port.

[0023] Specifically, in this embodiment, the lamp bead driving module adopts the DALI digital dimming system to encode each of the LED lamp beads to achieve precise control of each LED lamp bead.

[0024] Specifically, the data input terminal DIN of the lamp bead driver chip U1 is used to input display data, the data output terminal DO is used to transmit display data to the next cascade chip, and the LED driver output terminals OUTR, OUTG, and OUTB are used to output LED drive signals, which are PWM control signals of RED, GREEN, and BLUE of the LED respectively.

[0025] When multiple LED lamp beads are connected in parallel, each LED lamp bead string is connected to one of the lamp bead driving chips U1, and multiple lamp bead driving chips U1 are cascaded to make each LED lamp bead string display a corresponding color.

[0026] The lamp bead driving module is used to drive the LED lamp bead string group to turn on and off, and adjust the color and brightness of each LED lamp bead so that the color and brightness of each LED lamp bead are consistent with the color and brightness of the edge of the liquid crystal display screen and change synchronously.

[0027] Specifically, in this embodiment, the lamp bead driving chip U1 adopts the WS2811 driving chip, and the LED lamp bead adopts the RGB5050 full-color SMD LED light-emitting diode.

[0028] Preferably, the LED lamp bead string group includes a plurality of LED lamp beads connected in series, and the LED lamp beads have three color channels of red, green and blue. The red, green and blue color channels of the first LED lamp bead in the LED lamp bead string group are respectively connected to the three LED driving output terminals OUTR, OUTG and OUTB of the lamp bead driving chip U1, and present different colors under the drive of the display data signal.

[0029] Preferably, the number of LED lamp beads included in the LED lamp bead string group is adapted to the size of the liquid crystal display screen.

[0030] Specifically, the length of the LED lamp bead string group is the same as the border length of the image display area of ​​the LCD screen, and the number of LED lamp beads is adapted to the display pixels of the LCD screen, so that the color change of the LED lamp beads is synchronized with the color change of the image edge of the LCD screen.

[0031] Specifically, the LED lamp bead string group is arranged outside the edge of the liquid crystal display screen, and the placement position of each LED lamp bead corresponds to the position of the liquid crystal display screen.

[0032] Preferably, the input end of the HDMI color picking module is connected to the driving device of the LCD display, and the edge color and display brightness of the LCD display are extracted from the driving data stream of the LCD display. The output end of the HDMI color picking module is connected to the input end of the lamp bead driving module.

[0033] Preferably, the HDMI color picking module includes a data acquisition module and a data processing module, the input end of the data acquisition module is connected to the HDMI interface of the driving device of the liquid crystal display screen, and after acquiring the display data of the liquid crystal display screen and extracting the color data of the edge of the display screen, it is transmitted to the data processing module; the output end of the data acquisition module is connected to the input end of the data processing module, and the data processing module converts the extracted color data of the edge of the display screen into the color temperature and brightness signals of the LED lamp beads, and transmits them to the lamp bead driving module.

[0034] Specifically, depending on the connected device, the input end of the data acquisition module may also be connected to an HDMI interface of a media player to acquire display data.

[0035] Specifically, the lamp bead driving module adjusts the color temperature and brightness of the LED lamp bead string group according to the color temperature and brightness signals generated by the data processing module.

[0036] Specifically, in this embodiment, the HDMI color picking module adopts the existing target image color picking circuit, which will not be described in detail here.

[0037] In the above-mentioned advertising machine side wall synchronously emitting light board circuit, the HDMI color acquisition module extracts the color and brightness data of the edge of the image displayed on the liquid crystal display screen, and the lamp bead driving module adjusts each LED lamp bead in the LED lamp bead string group according to the data extracted by the HDMI color acquisition module, so that the color and brightness of the two side frames of the advertising machine change with the display content of the liquid crystal display screen, making the whole color of the advertising machine more coordinated and vivid, and the information content released more expressive. The product structure of the utility model is simple, easy to produce, low cost, and easy to promote.

[0038] It should be noted that the present invention is not limited to the above-mentioned embodiments. According to the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made according to the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A light board circuit for synchronously emitting light on the side wall of an advertising machine, used to adjust the atmosphere lights on the two side frames of the advertising machine, characterized in that: The invention comprises an HDMI color picking module, a lamp bead driving module and at least one LED lamp bead string group, wherein the input end of the HDMI color picking module is connected to the HDMI interface of the liquid crystal display screen, the output end of the HDMI color picking module is connected to the input end of the lamp bead driving module, the LED lamp bead string group is connected to the output end of the lamp bead driving module, the HDMI color picking module is used to extract the display color signal of the edge of the liquid crystal display screen, the lamp bead driving module adjusts the color and brightness of each LED lamp bead in the LED lamp bead string group according to the edge color of the liquid crystal display screen extracted by the HDMI color picking module, so that the color of the border of the advertising machine changes synchronously with the display content of the liquid crystal display screen.

2. A light board circuit for synchronously emitting light on the side wall of an advertising machine as claimed in claim 1, characterized in that: The lamp bead driving module includes a lamp bead driving chip U1, the data input pin DIN of the lamp bead driving chip U1 is connected to the output end of the HDMI color picking module, and the three LED driving output ends OUTR, OUTG, and OUTB of the lamp bead driving chip U1 are connected to the input end of the LED lamp bead string group.

3. A light board circuit for synchronously emitting light on the side wall of an advertising machine as claimed in claim 2, characterized in that: When a plurality of the lamp bead driving chips U1 are cascaded, the data output terminal DO of the lamp bead driving chip U1 is connected to the data input terminal DIN of the lamp bead driving chip U1 at the next stage.

4. A light board circuit for synchronously emitting light on the side wall of an advertising machine as claimed in claim 2, characterized in that: The LED lamp bead string group includes multiple LED lamp beads connected in series, and the LED lamp beads have three color channels of red, green and blue. The red, green and blue color channels of the first LED lamp bead in the LED lamp bead string group are respectively connected to the three LED driving output terminals OUTR, OUTG and OUTB of the lamp bead driving chip U1, and present different colors under the drive of the display data signal.

5. The circuit of the light board for synchronously emitting light on the side wall of an advertising machine as claimed in claim 1, characterized in that: The number of LED lamp beads included in the LED lamp bead string group is adapted to the size of the liquid crystal display screen.

6. A light board circuit for synchronously emitting light on the side wall of an advertising machine as claimed in claim 1, characterized in that: The input end of the HDMI color extraction module is connected to the driving device of the LCD screen, and the edge color and display brightness of the LCD screen are extracted from the driving data stream of the LCD screen. The output end of the HDMI color extraction module is connected to the input end of the lamp bead driving module.

7. A light board circuit for synchronously emitting light on the side wall of an advertising machine as claimed in claim 6, characterized in that: The HDMI color picking module includes a data acquisition module and a data processing module. The input end of the data acquisition module is connected to the HDMI interface of the driving device of the liquid crystal display screen. After acquiring the display data of the liquid crystal display screen and extracting the color data of the edge of the display screen, it is transmitted to the data processing module; the output end of the data acquisition module is connected to the input end of the data processing module. The data processing module converts the extracted color data of the edge of the display screen into the color temperature and brightness signals of the LED lamp beads, and transmits them to the lamp bead driving module.

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