CN111739460A - Display control device and display system - Google Patents
Display control device and display system Download PDFInfo
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- CN111739460A CN111739460A CN201910208769.5A CN201910208769A CN111739460A CN 111739460 A CN111739460 A CN 111739460A CN 201910208769 A CN201910208769 A CN 201910208769A CN 111739460 A CN111739460 A CN 111739460A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/08—Details of image data interface between the display device controller and the data line driver circuit
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Abstract
The invention discloses a display control device and a display system. The display control apparatus includes: a circuit board; the alternating current-to-direct current power supply circuit is arranged on the circuit board; the lamp panel signal output circuit is arranged on the circuit board and comprises a power supply signal output interface and a display data and control signal output interface, and the power supply signal output interface is connected with the alternating current-to-direct current power supply circuit; the image signal input interface is arranged on the circuit board; and the image signal processing circuit is arranged on the circuit board and is connected with the image signal input interface, wherein the image signal processing circuit is connected with the alternating current-to-direct current power supply circuit and the display data and control signal output interface. The embodiment of the invention can improve the installation convenience and reduce the wiring difficulty and the possibility of errors.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display control device and a display system.
Background
In the display industry, the power supply and the display control board card of the current display lamp panel, such as an LED lamp panel, are mutually independent. In addition, there are more and more Mini core cards in the market segment that separate the display controller card into a separate receiver card and a patch panel (HUB panel). However, with the development of the LED display industry, the dot spacing is smaller and smaller, the box body is thinner and thinner, the cost pressure is higher and larger, the power supply, the HUB board and the receiving card as the core card are independent from each other and the scheme of combined use is difficult to meet the requirements of customers, for example, the power supply, the HUB board and the core card need to be installed independently, the installation is inconvenient, the space requirement is larger, the wiring is complicated and disordered, and the error is easy.
Disclosure of Invention
Accordingly, embodiments of the present invention provide a display control apparatus and a display system that can improve the ease of installation, reduce the difficulty of wiring, and reduce the possibility of errors.
In one aspect, an embodiment of the present invention provides a display control apparatus, including: a circuit board; the alternating current-to-direct current power supply circuit is arranged on the circuit board; the lamp panel signal output circuit is arranged on the circuit board and comprises a power supply signal output interface and a display data and control signal output interface, and the power supply signal output interface is connected with the alternating current-to-direct current power supply circuit; the image signal input interface is arranged on the circuit board; and the image signal processing circuit is arranged on the circuit board and is connected with the image signal input interface, wherein the image signal processing circuit is connected with the alternating current-to-direct current power supply circuit and the display data and control signal output interface.
In one embodiment of the invention, the power signal output interface is a plurality of direct current voltage output ports with voltage not higher than 5V.
In an embodiment of the invention, the lamp panel signal output circuit further includes a plurality of signal driving chips, the plurality of display data and control signal output interfaces are connected to the image signal processing circuit through the plurality of signal driving chips, respectively.
In an embodiment of the present invention, the image signal input interface is an ethernet interface, and the image signal processing circuit includes: the system comprises a programmable logic device, a microcontroller, an Ethernet physical layer transceiver and a direct current-to-direct current power supply circuit; the Ethernet physical layer transceiver is connected between the Ethernet interface and the programmable logic device, the microcontroller is connected with the programmable logic device, and the DC-to-DC power circuit is connected with the programmable logic device, the microcontroller, the Ethernet physical layer transceiver and the AC-to-DC power circuit.
In one embodiment of the present invention, the display control apparatus further includes: and the liquid crystal display screen interface is arranged on the circuit board and connected with the microcontroller.
In one embodiment of the present invention, the display control apparatus includes a core board, the circuit board having a connector thereon, the core board being plugged into the connector; the image signal processing circuit is disposed on the core board.
In one embodiment of the present invention, the display control apparatus further includes: and the test key is connected with the connector so as to be connected to the programmable logic device.
In one embodiment of the present invention, the display control apparatus further includes: and the network transformer chip is connected between the connector and the Ethernet interface so as to be connected with the Ethernet physical layer transceiver.
In one embodiment of the present invention, the display control apparatus further includes: the cascade port is connected with the Ethernet physical layer transceiver; and the cascade interface is an Ethernet interface.
In one embodiment of the present invention, the circuit board has a first region, a second region, a third region, a fourth region, a fifth region, and a sixth region; the first region, the second region, the third region and the fourth region are sequentially arranged along the length direction of the circuit board, and the fifth region and the sixth region are respectively positioned at two opposite sides of the third region; the AC-to-DC power supply circuit is arranged in the first area, the power signal output interface is arranged in the second area, the image signal processing circuit is arranged in the third area, the image signal input interface is arranged in the fourth area, and the display data and control signal output interface is arranged in the fifth area and the sixth area.
In one embodiment of the present invention, the power signal output interface is M connectors, and the display data and control signal output interface is M connectors; wherein M is an even number greater than 2.
In an embodiment of the present invention, the power signal output interface is N connectors, and the display data and control signal output interface is 2N connectors; wherein the value of N is a positive integer greater than 2.
In another aspect, an embodiment of the present invention provides a display system, including: the display control device as described above; and the LED lamp panels are connected with the power supply signal output interface of the display control device and the display data and control signal output interface.
One of the above technical solutions has the following advantages or beneficial effects: the embodiment of the invention can improve the installation convenience, reduce the wiring difficulty and reduce the possibility of errors by arranging the AC-DC power supply circuit, the image signal processing circuit and the lamp panel signal interface output circuit on the circuit board and carrying out reasonable layout.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display control apparatus according to a first embodiment of the present invention.
Fig. 2 is another schematic structural diagram of the display control apparatus according to the first embodiment of the present invention.
Fig. 3 is a schematic diagram of a connection relationship between the dc-to-dc power circuit and other elements in the image signal processing circuit shown in fig. 2.
Fig. 4 is a schematic structural diagram of a core board of another display control device according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a circuit board of the display control device shown in fig. 4.
Fig. 6 is a schematic structural diagram of a display system according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
As shown in fig. 1 and 2, a display control apparatus 100 according to a first embodiment of the present invention is provided. The display control device 100 provided in this embodiment may be used, for example, to connect a display lamp panel such as an LED lamp panel to provide a working power signal and display data and a control signal to the LED lamp panel, thereby lighting the LED lamp panel and controlling the brightness of each LED display pixel on the LED lamp panel.
The display control device 100 includes, for example, a circuit board 110, an ac-dc power supply circuit 120, a lamp panel signal output circuit 130, an image signal input interface 140, and an image signal processing circuit 150.
Specifically, the Circuit Board 100 is, for example, a Printed Circuit Board (PCB), which has the characteristics of high wiring density, light weight, thin thickness, and the like.
The ac-to-dc power supply circuit 120 includes, for example, a rectifier filter circuit for converting an input ac power into a dc power, for example, a 220V ac power into a 5V dc power to supply other electric components. The ac-to-dc power supply circuit 120 is disposed on the circuit board 110. The ac-to-dc power circuit 120 includes an ac input terminal (not shown) and an ac output terminal (not shown) connected to the ac input terminal. For example, the ac input connection terminal is connected with 220V ac power for the current-stage display control device 100 and the loaded display panel thereof, and the ac output connection terminal is connected with 220V ac power for the subsequent-stage display control device 100 and the loaded display panel thereof. It should be noted that the AC-DC power circuit 120 of the present embodiment can be constructed by using similar electronic components in a commercially available AC-DC power supply, and therefore, the specific circuit structure thereof is not described herein again.
Lamp panel signal output circuit 130 is disposed on circuit board 110 and is used to connect the display lamp panel to supply power to the display lamp panel and drive the display lamp panel for image display. The lamp panel signal output circuit 130 includes, for example, a power supply signal output interface 131 and a display data and control signal output interface 133. The power signal output interface 131 is connected to the ac-to-dc power circuit 120, so as to obtain power from the ac-to-dc power circuit 120 and supply the connected display lamp panel with, for example, a dc power with a voltage not higher than 5V, such as about 4.8V. The power signal output interfaces 131 are typically multiple (only one is shown in fig. 1 as an illustration), for example, multiple dc voltage output ports, which can be used to supply power to multiple display panels. The power signal output interfaces 131 are, for example, connectors, so that a user can connect a power line of the display lamp panel by quick plugging, and the connection is convenient. Of course, each power signal output interface 131 may also be another type of connector, such as a screw interface, and the embodiment of the invention is not limited thereto. In addition, a single power signal output interface 131 may be connected to one LED lamp panel, or may be connected to a plurality of LED lamp panels. For example, the single power signal output interface 131 is a 2-pin connector and includes a positive pin and a negative pin, and may be loaded with one LED lamp panel or multiple lamp panels. For another example, the single power signal output interface 131 is a 4-pin connector and includes two positive pins and two negative pins, so that a standard one-to-two power line in the LED industry can be adopted to implement that one power signal output interface 131 carries two LED lamp panels, which can reduce the complexity of the connection between the display control device 100 and a display lamp panel, such as an LED lamp panel, in this embodiment.
As described above, the display data and control signal output interface 133 is used to provide display data and control signals to the LED lamp panel to display corresponding pictures on the LED lamp panel. The display data and control signal output interface 133 includes, for example, display data output pins such as red (R), green (G), and blue (B) signals, and related control signal output pins such as an enable signal (OE), a blanking signal (CTRL), and a clock signal (CLK). The display data and control signal output interface 133 is typically a plurality of interfaces, and each display data and control signal output interface 133 is, for example, a connector, such as a 16-pin or 26-pin header, so that the display data and control signal output interface 133 and the display lamp panel can be connected by a flexible flat cable. Of course, the display data and control signal output interface 133 may be other types of connectors, and the embodiment of the invention is not limited thereto. The number of the display data and control signal output interfaces 133 is, for example, 6, 8, 12, or 16. One display data and control signal output interface 133 may be a connector, and each connector may be connected to one display lamp panel, or may be connected to a plurality of cascaded display lamp panels. Of course, the display data and control signal output interfaces 133 may be integrated into the same connector, and the integrated connector is connected to the display lamp panels. Further, the number of the power signal output interfaces 131 is proportional to the number of the display data and control signal output interfaces 133, for example, the power signal output interfaces 131 are M connectors, and the display data and control signal output interfaces 133 are M connectors, where M is an even number greater than 2, such as 4, 6, 8, 12, or 16; for another example, the power signal output interface 131 is N connectors, and the display data and control signal output interface 133 is 2N connectors, where N is a positive integer greater than 2, such as 3, 4, 6, or 8. Therefore, one power signal output interface 131 and two display data and control signal output interfaces 133 are connected to two display lamp panels, that is, the two display lamp panels are connected in parallel to the same power signal output interface 131 to obtain the direct-current working voltage, so that the number of power supply flat cables is reduced, the cost is saved, the difficulty of installation and wiring is reduced, and the installation efficiency is improved. In addition, the value range of the rated output power of the ac-to-dc power supply circuit 120 is 400 w to 700 w, the value range of the rated output power can be compatible with the LED display lamp panels of most models, and 6, 8, 12 or 16 display lamp panels can be loaded corresponding to the value of the rated output power, so that the power supply power is prevented from being idle.
Preferably, the power signal output interface 131 and the display data and control signal output interface 133 are disposed on the same side of the circuit board 110, so that a user can complete connection between the lamp panel power circuit and the image data (including the display data and the control signal) circuit from the same side of the display control device 100, and the convenience of wiring is improved.
The image signal input interface 140 is provided on the circuit board 110. The image signal input interface 140 is used to connect an image signal transmitting apparatus such as a transmitting card, for example, to acquire an image signal from the transmitting card and transmit the image signal to the image signal processing circuit 150. The image signal input interface 140 is, for example, an ethernet interface such as an RJ45 network interface. The image signal input interface 140 may also be other types of signal interfaces such as other signal interfaces suitable for long-distance signal transmission.
The image signal processing circuit 150 is disposed on the circuit board 110. The image signal processing circuit 150 is connected to the ac-to-dc power supply circuit 120 to take power from the ac-to-dc power supply circuit 120. The image signal processing circuit 150 is connected to the image signal input interface 140 to obtain an input image signal (e.g., including display data and field frequency signals) from the image signal input interface 140. The image signal processing circuit 150 is also connected to the display data and control signal output interface 133 of the lamp panel signal output circuit 130, so as to output display data and control signals for the display lamp panel to the display data and control signal output interface 133. The image signal processing circuit 150 processes the image signal acquired from the image signal input interface 140 to obtain display data and a control signal required by the display lamp panel, and outputs the display data and the control signal to the carried display lamp panel through the display data and control signal output interface 133 for image display.
Further, as shown in fig. 2, the lamp panel signal output circuit 130 further includes a signal driving chip 135. The signal driving chip 135 is connected to the ac-to-dc power circuit 120 to obtain the dc operating voltage. In addition, there are a plurality of signal driving chips 135 and a plurality of display data and control signal output interfaces 133. The display data and control signal output interfaces 133 are connected to the image signal processing circuit 150 through the signal driving chips 135, respectively. Thus, the capability of the display control device 100 for driving the display lamp panel can be enhanced, and the loading of the display control device 100 is more stable.
As described above, as shown in fig. 2, the image signal processing circuit 150 includes, for example, a programmable logic device 152, a microcontroller 154, an ethernet physical layer transceiver 153, and a dc-dc power supply circuit 151. The programmable logic device 152 is, for example, a Field Programmable Gate Array (FPGA) device, and is mainly used for processing an image signal to generate display data and a control signal for a display panel. The microcontroller 154 is, for example, an MCU based on an ARM core, and is mainly used for loading the programmable logic device 152, and even performing temperature and humidity detection, voltage detection, and the like by connecting a sensor. The ethernet physical layer transceiver 153 is connected between the image signal input interface 140, e.g., an ethernet interface, and the programmable logic device 152. The microcontroller 154 is connected to the programmable logic device 152. The dc-dc power supply circuit 151 is connected to the ac-dc power supply circuit 120. The dc-to-dc power supply circuit 151 is also connected to a programmable logic device 152, a microcontroller 154 and an ethernet physical layer transceiver 153. The ac-to-dc power circuit 120 converts ac power to dc power and outputs a voltage with a suitable magnitude to the dc-to-dc power circuit 151, and the dc-to-dc power circuit 151 converts the input dc power and outputs the converted dc power to the programmable logic device 152, the microcontroller 154 and the ethernet physical layer transceiver 153 to supply power to the programmable logic device 152, the microcontroller 154 and the ethernet physical layer transceiver 153.
In addition, as shown in fig. 2, the image signal processing circuit 150 further includes a nonvolatile memory 155 such as FLASH. The nonvolatile memory 155 is used to store data of the display control apparatus 100, and to prevent data loss after the display control apparatus 100 is powered down. In addition, the image signal processing circuit 150 further includes a volatile memory 156 such as an SDRAM, and the volatile memory 156 is used to provide a data buffer space. The dc-dc power supply circuit 151 also connects the nonvolatile memory 155 and the volatile memory 156 to supply power to the nonvolatile memory 155 and the volatile memory 156 (refer to fig. 3).
In addition, as shown in fig. 2, the display control apparatus 100 further includes a cascade port 160. The cascading port 160 is, for example, an ethernet port such as an RJ45 port. The cascade port 160 is disposed on the circuit board 110 and connected to the ethernet physical layer transceiver 153 of the image signal processing circuit 150. The cascade port 160 is used to connect the image signal processing circuit 150 to transmit the image signal not belonging to the display control device 100 of the current stage to the next display control device in the cascade. Preferably, the cascade port 160 and the image signal input interface 140 are integrated into a dual-port structure for easy connection.
Furthermore, the display control apparatus 100 may further include a network transformer chip 170. The network transformer chip 170 is disposed on the circuit board 110. The network transformer chip 170 is connected between the image signal input interface 140 and the ethernet physical layer transceiver 153, and the network transformer chip 170 is further connected between the cascade interface 160 and the ethernet physical layer transceiver 153; in this way, two ethernet interfaces share one network transformer chip 170.
In addition, the display control apparatus 100 may further include a liquid crystal display interface 180. A liquid crystal display interface 180 is disposed on the circuit board 110 and connected to the microcontroller 154. The lcd interface 180 is used to connect to an lcd for displaying status information of the control device 100, so that a user can more intuitively know the operating status of the display control device 100. In this embodiment, the lcd interface 180 is, for example, a 5PIN interface or a 9PIN interface.
In addition, the display control apparatus 100 may further include a test key 190. The test key 190 is disposed on the circuit board 110 and connected to the programmable logic device 152. The test key 190 is used to detect whether the image signal processing circuit 150 of the display control apparatus 100 is operating normally.
More specifically, as shown in fig. 3, the dc-dc power supply circuit 151 converts the dc power having a voltage not higher than 5V output from the ac-dc power supply circuit 120 into dc power having voltages of, for example, 3.3V and 1.2V. The dc-dc power circuit 151 outputs a dc power of 1.2V to the programmable logic device 152 and the ethernet physical layer transceiver 153, and outputs a dc power of 3.3V to the microcontroller 154, the nonvolatile memory 155, the volatile memory 156, the lcd interface 180, and the test button 190.
Further, on the circuit layout, as shown in fig. 1, the circuit board 110 has a region a1, a region a2, a region A3, a region a4, a region 5, and a region a 6. The region a1, the region a2, the region A3, and the region a4 are arranged in this order along the length direction (vertical direction in fig. 1) of the circuit board 110. The region a5 and the region a6 are located on opposite sides of the region A3 in the width direction (horizontal direction in fig. 1) of the circuit board 110, respectively. The ac-dc power circuit 120 is located in the area a1, the power signal output interface 131 is located in the area a2, the video signal processing circuit 150 is located in the area A3, the video signal input interface 140 is located in the area a4, and the display data and control signal output interface 133 is located in the area a5 and the area a 6. Further, the ac input connection terminal and the ac output connection terminal (not shown) of the ac-to-dc power circuit 120 and the image signal input interface 140 are respectively disposed at two ends of the circuit board 110 in the length direction, so that the signal interference of the ac-to-dc power circuit 120 to the image signal input interface 140 can be reduced, and the cascade wiring of the display control device 100 can be facilitated. A plurality of power signal output interfaces 131 (only one is shown in fig. 1 as an example) are arranged in a row-column manner in the area a 2. The plurality of display data and control signal output interfaces 133 are arranged in a row and column manner within the area a5 and the area a 6. A part of the signal driving chips 135 (refer to fig. 2) is disposed between the region A3 and the region a5, and another part of the signal driving chips is disposed between the region A3 and the region a 6. The network transformer chip 170 (refer to fig. 2) is disposed between the area A3 and the area a 4. Furthermore, it can also be seen from fig. 1 that: the image signal processing circuit 150 is surrounded by the power signal output interface 131, the display data and control signal output interface 133 and the image signal input interface 140, and the layout of the circuit components is favorable for protecting the image signal processing circuit 150 and is not easy to be damaged by collision of external cables of the interfaces.
In summary, in the above embodiments of the present invention, the ac-to-dc power circuit 120, the image signal processing circuit 150, and the lamp panel signal interface output circuit 130 are disposed on the circuit board 110 and are reasonably arranged, so that the installation convenience is improved, and the wiring difficulty and the possibility of errors are reduced. This structural design can make the thickness of the LED box that disposes the LED display lamp plate thinner, has reduced the occupancy in LED box space. The structural design integrates upstream and downstream resources better, and improves the compatibility of products. In addition, the ac-to-dc power supply circuit 120 and the image signal input interface 140 are separately disposed at two ends of the circuit board 110 in the length direction, so that signal interference of the ac-to-dc power supply circuit 120 to the image signal input interface 140 can be reduced, and the cascade wiring of the LED lamp panel can be facilitated. The power signal output interface 131 and the display data and control signal output interface 133 are disposed on the same side of the circuit board 110, so that a user can complete connection between a lamp panel power circuit and an image data (including display data and control signals) circuit from the same side of the display control device 100, and the convenience of wiring is improved. In addition, the power supply power is determined according to the actual carrying capacity of the minimum unit, the output interface of the power supply and the number of the lamp panels with the fixed carrying capacity are standardized in a unified mode, the power supply is optimally designed, and the utilization rate of the power supply is improved. Furthermore, a plurality of power signal output interfaces 131 are arranged on the circuit board 110, so that a plurality of LED lamp panels can be loaded on one display control device 100, the number of power supplies is reduced, and the cost is saved. The integration of the power supply can reduce the cascading times of the power supply, and the layout and wiring of the system are optimized. In addition, the structural design of the display control device 100 is beneficial to enhancing the production and quality control of the display control device 100, and greatly reduces the quality risk and the cost.
In addition, it should be noted that in another embodiment of the present invention, as shown in fig. 4, the display control apparatus 100 includes a core board 500. The image signal processing circuit 150 located on the circuit board 110 in the original 1 is provided on the core board 500, not directly on the circuit board 110. Specifically, as shown in fig. 5, the image signal processing circuit 150 on the circuit board 110 in fig. 1 is replaced with the connector 113. The core board 500 is plugged to the connector 113 on the circuit board 110. In addition, the ac-to-dc power supply circuit 120 provided on the circuit board 110 is connected to the dc-to-dc power supply circuit 151 of the image signal processing circuit 150 provided on the core board 500 through the connector 113. The network transformer chip 170 disposed on the circuit board 110 is connected to the ethernet physical layer transceiver 153 of the image signal processing circuit 150 disposed on the core board 500 through the connector 113. The test key 190 provided on the circuit board 110 is connected to the programmable logic device 152 of the image signal processing circuit 150 provided on the core board 500 through the connector 113. Therefore, by reserving a connection interface on the circuit board 110, flexible replacement and later-stage function expansion and upgrading of the core board 500 are facilitated. Further, the connectors 113 are, for example, connectors such as row female connectors arranged in pairs, and the core board 500 is also provided with connectors 510 such as row pin connectors arranged in pairs to be matched with the connectors 113, so that the core board 500 can be quickly inserted on the circuit board 110. Of course, other circuits and/or electronic components on the circuit board 110 may be selectively disposed on the core board 500 according to the actual application.
[ second embodiment ]
As shown in fig. 6, a second embodiment of the present invention provides a display system 10. The display system 10 includes, for example, a display control device 100 and a plurality of LED lamp panels 200.
The display control apparatus 100 may adopt the display control apparatus 100 provided in the foregoing first embodiment of the present invention. The display control apparatus 100 includes, for example, a plurality of power supply signal output interfaces 131 and a plurality of display data and control signal output interfaces 133.
The LED lamp panels 200 are connected to the power signal output interface 131 to obtain power from the display control device 100, thereby obtaining the operating voltage. The LED lamp panels 200 are also connected to the display data and control signal output interface 133 to obtain display data and control signals from the display control device 100, thereby implementing image display.
For the specific implementation process and technical effects of the embodiment of the present invention, reference is made to the description of the first embodiment of the present invention, and details are not repeated here.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (13)
1. A display control apparatus, characterized by comprising:
a circuit board;
the alternating current-to-direct current power supply circuit is arranged on the circuit board;
the lamp panel signal output circuit is arranged on the circuit board and comprises a power supply signal output interface and a display data and control signal output interface, and the power supply signal output interface is connected with the alternating current-to-direct current power supply circuit;
the image signal input interface is arranged on the circuit board; and
and the image signal processing circuit is arranged on the circuit board and is connected with the image signal input interface, wherein the image signal processing circuit is connected with the alternating current-to-direct current power supply circuit and the display data and control signal output interface.
2. The display control apparatus according to claim 1, wherein the power supply signal output interface is a plurality of dc voltage output ports having a voltage of not higher than 5V.
3. The display control device of claim 1, wherein the lamp panel signal output circuit further comprises a plurality of signal driving chips, the plurality of display data and control signal output interfaces are connected to the image signal processing circuit through the plurality of signal driving chips, respectively.
4. The display control apparatus according to claim 1, wherein the image signal input interface is an ethernet interface, and the image signal processing circuit comprises: the system comprises a programmable logic device, a microcontroller, an Ethernet physical layer transceiver and a direct current-to-direct current power supply circuit; the Ethernet physical layer transceiver is connected between the Ethernet interface and the programmable logic device, the microcontroller is connected with the programmable logic device, and the DC-to-DC power circuit is connected with the programmable logic device, the microcontroller, the Ethernet physical layer transceiver and the AC-to-DC power circuit.
5. The display control apparatus according to claim 4, further comprising: and the liquid crystal display screen interface is arranged on the circuit board and connected with the microcontroller.
6. The display control device according to claim 4, wherein the display control device comprises a core board, the circuit board having a connector provided thereon, the core board being plugged to the connector; the image signal processing circuit is disposed on the core board.
7. The display control apparatus according to claim 6, further comprising: and the test key is connected with the connector so as to be connected to the programmable logic device.
8. The display control apparatus according to claim 6, further comprising: and the network transformer chip is connected between the connector and the Ethernet interface so as to be connected with the Ethernet physical layer transceiver.
9. The display control apparatus according to claim 4, further comprising: the cascade port is connected with the Ethernet physical layer transceiver; and the cascade interface is an Ethernet interface.
10. The display control apparatus according to claim 1, wherein the circuit board has a first region, a second region, a third region, a fourth region, a fifth region, and a sixth region; the first region, the second region, the third region and the fourth region are sequentially arranged along the length direction of the circuit board, and the fifth region and the sixth region are respectively positioned at two opposite sides of the third region; the AC-to-DC power supply circuit is arranged in the first area, the power signal output interface is arranged in the second area, the image signal processing circuit is arranged in the third area, the image signal input interface is arranged in the fourth area, and the display data and control signal output interface is arranged in the fifth area and the sixth area.
11. The display control device of claim 1, wherein the power signal output interface is M connectors, and the display data and control signal output interface is M connectors; wherein M is an even number greater than 2.
12. The display control device according to claim 1, wherein the power signal output interface is N connectors, and the display data and control signal output interface is 2N connectors; wherein the value of N is a positive integer greater than 2.
13. A display system, comprising:
the display control apparatus according to any one of claims 1 to 12; and
and the LED lamp panels are connected with the power supply signal output interface and the display data and control signal output interface of the display control device.
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| CN201910208769.5A CN111739460A (en) | 2019-03-19 | 2019-03-19 | Display control device and display system |
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| CN201910208769.5A CN111739460A (en) | 2019-03-19 | 2019-03-19 | Display control device and display system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113744688A (en) * | 2021-11-04 | 2021-12-03 | 惠科股份有限公司 | Adapter plate and display panel |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183503A (en) * | 2007-12-20 | 2008-05-21 | 深圳市奥拓电子有限公司 | Temperature compensation means for LED display and control method thereof |
| KR20090009274U (en) * | 2008-03-12 | 2009-09-16 | 이우규 | Led electric board apparatus using emitting module with sector form |
| CN201331725Y (en) * | 2009-01-19 | 2009-10-21 | 山东超越数控电子有限公司 | Whole reinforcement computer having multibus circuit board card |
| KR101153272B1 (en) * | 2012-02-27 | 2012-06-07 | 주식회사 대한전광 | Led bar lighting device and display device using that |
| CN203645880U (en) * | 2013-12-16 | 2014-06-11 | 保锐科技股份有限公司 | Power supply control system of light emitting diode lamp panel |
| CN204966020U (en) * | 2015-08-07 | 2016-01-13 | 西安诺瓦电子科技有限公司 | Scanning card, LED lamp plate, switching card and LED display screen control system |
| CN105243988A (en) * | 2015-10-08 | 2016-01-13 | 西安诺瓦电子科技有限公司 | Embedded LED display controller |
| CN205230512U (en) * | 2015-08-18 | 2016-05-11 | 合肥瑞华电子科技有限责任公司 | Light -emitting diode (LED) display screen box body structure |
| CN207503227U (en) * | 2017-11-17 | 2018-06-15 | 深圳市中达瑞和科技有限公司 | A kind of core board based on embedded system |
| CN108735148A (en) * | 2018-08-20 | 2018-11-02 | 广州视源电子科技股份有限公司 | integrated board card, display module and display device |
| CN208077542U (en) * | 2018-05-04 | 2018-11-09 | 惠州雷曼光电科技有限公司 | display module, display screen and display system |
-
2019
- 2019-03-19 CN CN201910208769.5A patent/CN111739460A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183503A (en) * | 2007-12-20 | 2008-05-21 | 深圳市奥拓电子有限公司 | Temperature compensation means for LED display and control method thereof |
| KR20090009274U (en) * | 2008-03-12 | 2009-09-16 | 이우규 | Led electric board apparatus using emitting module with sector form |
| CN201331725Y (en) * | 2009-01-19 | 2009-10-21 | 山东超越数控电子有限公司 | Whole reinforcement computer having multibus circuit board card |
| KR101153272B1 (en) * | 2012-02-27 | 2012-06-07 | 주식회사 대한전광 | Led bar lighting device and display device using that |
| CN203645880U (en) * | 2013-12-16 | 2014-06-11 | 保锐科技股份有限公司 | Power supply control system of light emitting diode lamp panel |
| CN204966020U (en) * | 2015-08-07 | 2016-01-13 | 西安诺瓦电子科技有限公司 | Scanning card, LED lamp plate, switching card and LED display screen control system |
| CN205230512U (en) * | 2015-08-18 | 2016-05-11 | 合肥瑞华电子科技有限责任公司 | Light -emitting diode (LED) display screen box body structure |
| CN105243988A (en) * | 2015-10-08 | 2016-01-13 | 西安诺瓦电子科技有限公司 | Embedded LED display controller |
| CN207503227U (en) * | 2017-11-17 | 2018-06-15 | 深圳市中达瑞和科技有限公司 | A kind of core board based on embedded system |
| CN208077542U (en) * | 2018-05-04 | 2018-11-09 | 惠州雷曼光电科技有限公司 | display module, display screen and display system |
| CN108735148A (en) * | 2018-08-20 | 2018-11-02 | 广州视源电子科技股份有限公司 | integrated board card, display module and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113744688A (en) * | 2021-11-04 | 2021-12-03 | 惠科股份有限公司 | Adapter plate and display panel |
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant before: Xi'an NovaStar Tech Co.,Ltd. |
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Application publication date: 20201002 |