CN208077542U - display module, display screen and display system - Google Patents
display module, display screen and display system Download PDFInfo
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- CN208077542U CN208077542U CN201820658831.1U CN201820658831U CN208077542U CN 208077542 U CN208077542 U CN 208077542U CN 201820658831 U CN201820658831 U CN 201820658831U CN 208077542 U CN208077542 U CN 208077542U
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Abstract
The utility model discloses a kind of display module, display screen and display systems, wherein the display module includes a main reception card, a pinboard and multiple display unit plates.Wherein, pinboard is electrically connected with main reception card, and multiple display unit plates are electrically connected with pinboard and are spliced into a display surface respectively.Each display unit plate includes a circuit board and multiple pixels, and multiple pixels are set on circuit board, and each pixel includes an at least LED chip.The utility model display module improves the stability of LED display control system by built-in reception card.
Description
Technical Field
The utility model relates to a LED shows technical field, especially relates to a display module assembly, display screen and display system.
Background
Because the LED display screen has the advantages of high brightness, less energy consumption, long service life, wide visual angle range, rich and various display modes and display contents and the like, the LED display screen is widely applied to the fields of information propagation, advertising and the like and becomes a main carrier for information display such as stadiums, road traffic, financial stock exchange, advertising media and the like.
As shown in fig. 1, in the LED display screen control system, a receiving card 100 is cascaded with a plurality of display modules 102, and analog signals are output from the receiving card 100 to the display modules 102 and are transmitted to the next adjacent display module 102 step by step. When the receiving card 100 of the LED display screen control system fails or fails to work, all the display modules 102 cascaded with the receiving card 100 may fail or fail to work, and the LED display screen control system has poor stability.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at providing a display module assembly aims at improving LED display screen control system's stability through built-in receiving card.
In order to achieve the above object, the utility model provides a display module assembly, include: a main receiving card; a transfer board electrically connected with the main receiving card; the display unit boards are respectively and electrically connected with the adapter board and spliced into a display surface; each of the display unit panels includes: a circuit board; and the pixel points are arranged on the circuit board, and each pixel point comprises at least one LED chip.
Preferably, the display module further includes: and the backup receiving card is electrically connected with the adapter plate.
Preferably, the main receiving card and the backup receiving card are installed on the adapter plate; the adapter plate is provided with a first input interface and a first output interface which are electrically communicated with the main receiving card, and a second input interface and a second output interface which are electrically communicated with the backup receiving card, wherein the first input interface and the second input interface are used for inputting data; the first output interface and the second output interface are used for outputting data.
Preferably, the circuit board includes lamp plate and drive plate through the connector electricity connection, a plurality of pixel point set up the lamp plate is kept away from the one side of drive plate, be equipped with a plurality of driver chip on the drive plate.
Preferably, each display unit board further comprises an encapsulation layer covering the circuit board and encapsulating the plurality of pixel points, the encapsulation layer is provided with criss-cross grooves, the grooves divide the encapsulation layer into a plurality of spaced lens portions, the grooves are used for spacing any two adjacent pixel points, and each lens portion is arranged corresponding to one pixel point; the packaging layer is provided with a plurality of transverse grooves, and each transverse groove is arranged between two adjacent pixel points; or the packaging layer is provided with a plurality of longitudinal grooves, and each longitudinal groove is arranged between two adjacent pixel points.
Preferably, the display module further includes: the first module power supply is electrically connected with the adapter plate and used for converting first direct current voltage into second direct current voltage, and the first direct current voltage is greater than the second direct current voltage.
Preferably, the display module further includes: and the second module power supply is electrically connected with the adapter plate and is used for converting the alternating current power supply into the direct current power supply.
In addition, for realizing above-mentioned purpose, the utility model also provides a display screen, including two cascaded at least display module assemblies, two at least display module assemblies splice into a display surface, each display module assembly is as above display module assembly.
Preferably, the display screen further comprises: and the first power supply unit is respectively electrically connected with all the display modules and used for converting an alternating current power supply into a direct current power supply to supply power.
Preferably, the display screen further comprises: and the second power supply unit is respectively electrically connected with all the display modules and used for converting an alternating current power supply into a direct current power supply to supply power.
In addition, in order to realize the above object, the utility model also provides a display system, including cascaded two at least display screens, two at least display screens splice into a display surface, the display screen be as above the display screen.
According to the technical scheme of the utility model, the main receiving card is arranged in each display module to receive and process data, and the processed data is distributed to each display unit board through the adapter plate; because every display module group embeds there is the main receiving card, and then the display module group of cascade setting can not lead to all display module groups to be out of work because of a receiving card is makeed mistakes or is out of work, has improved LED display screen control system's stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a block diagram of a prior art LED display control system;
fig. 2 is a block diagram of a display module according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a display unit plate of the display module shown in FIG. 2;
fig. 4 is a block diagram of a display module according to a second embodiment of the present invention;
FIG. 5 is a side view of a display unit plate of the display module of FIG. 4;
fig. 6 is a block diagram of a display module according to a third embodiment of the present invention;
fig. 7 is a block diagram of a fourth embodiment of a display module according to the present invention;
fig. 8 is a block diagram of a fifth embodiment of a display module according to the present invention;
fig. 9 is a block diagram of the first embodiment of the display screen of the present invention;
fig. 10 is a block diagram of a second embodiment of the display screen of the present invention;
fig. 11 is a block diagram of a third embodiment of the display screen of the present invention;
fig. 12 is a block diagram of a fourth embodiment of the display screen of the present invention;
fig. 13 is a block diagram of a fifth embodiment of the display panel of the present invention.
The purpose, function, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a display module, please refer to fig. 2 and 3, in a first embodiment, the display module 1 includes a main receiving card 10, a transfer board 11 and a plurality of display unit boards 12. The adapter plate 11 is electrically connected with the main receiving card 10, and the plurality of display unit boards 12 are respectively electrically connected with the adapter plate 11 and spliced to form a display surface. Each display unit board 12 includes a circuit board 120 and a plurality of pixels, the plurality of pixels are disposed on the circuit board 120, and each pixel includes at least one LED chip 122.
The utility model discloses display module assembly 1 is through built-in main receiving card 10, and main receiving card 10 receives and handles the data after, sends the number after will handling to each display element board 12 through keysets 11, shows by each display element board 12 at last. Because each display module 1 is internally provided with the main receiving card 10, the cascaded display modules 1 cannot work due to the fact that one receiving card makes mistakes or does not work, and therefore the stability of the LED display screen control system is improved. The main receiving card 10 is a receiving card, and may also be called a receiving control card or a control card; the interposer 11 is also referred to as Hub board.
In this embodiment, the main receiving card 10 is inserted and installed on the adapter plate 11 through the connector, so that the main receiving card 10 is convenient to install and detach, and quick plugging and unplugging are realized. Meanwhile, in order to further fix the main receiving card 10 on the adapter plate 11, the main receiving card 10 is locked on the adapter plate 11 by screws. Preferably, the main receiving card 10 is provided with two rows of female connectors, the adapter plate 11 is provided with two rows of male connectors, and the female connectors of the main receiving card 10 are in plug-in fit with the male connectors of the adapter plate 11. However, in other embodiments, the main receiving card 10 may be connected to the patch panel 11 by a flat cable.
In this embodiment, the adapter board 11 is provided with a first input interface 110 and a first output interface 112 electrically connected to the main receiving card 10. The first input interface 110 is used for inputting data, the main receiving card 10 receives and processes the input data, the processed data is displayed on the display surface formed by the plurality of display unit boards 12, and the first output interface 112 is used for outputting the processed data to the next display module 1. Preferably, the first input interface 110 and the first output interface 112 are both network ports.
In this embodiment, the adapter plate 11 is provided with a power interface 114 for inputting a power, and the power interface 114 inputs a DC power, so as to supply power to the whole display module 1. Specifically, the power interface 114 inputs a dc voltage of 4.5V, and supplies power to each display unit board 12 through the adapter board 11, it should be noted that the magnitude of the input dc voltage may be adjusted according to actual requirements, and is not limited to 4.5V.
Referring to fig. 3, in the present embodiment, each display unit board 12 further includes a package layer 124 covering the circuit board 120 to package a plurality of pixel points, the package layer 124 is provided with criss-cross grooves 126, the grooves 126 divide the package layer 124 into a plurality of spaced lens portions 128, the grooves 126 are spaced between any two adjacent pixel points, and each lens portion 128 is disposed corresponding to one pixel point. However, in other embodiments, the encapsulation layer 124 has a plurality of lateral grooves, and each lateral groove is disposed between two adjacent pixels; alternatively, the encapsulation layer 124 has a plurality of longitudinal grooves, and each longitudinal groove is disposed between two adjacent pixels.
In this embodiment, the circuit board 120 of each display unit board 12 is electrically connected to the interposer 11 through a connector or a flat cable. Each pixel includes three LED chips 122 of different colors. Preferably, the three LED chips 122 of different light emission colors are a red LED chip, a blue LED chip, and a green LED chip, respectively. In other embodiments, each pixel may have four LED chips 122.
Referring to fig. 4, fig. 4 is a block diagram of a display module according to a second embodiment of the present invention. Compared with the display module of the first embodiment, the display module of this embodiment has the following differences:
the display module 1 further includes a backup receiving card 13. The backup receiving card 13 is electrically connected with the adapter plate 11.
The display module 1 of this embodiment is additionally provided with the backup receiving card 13 on the basis of the first embodiment, and when the main receiving card 10 makes a mistake or cannot work, the backup receiving card 13 replaces the main receiving card 10 and sends the processed data to the plurality of display unit boards 12 for displaying, so that data backup is realized, the normal work of the display module 1 is ensured, and the stability of the LED display screen control system is further improved. The function of the backup receiving card 13 and the installation manner on the adapter board 11 are the same as those of the main receiving card 10, and are not described herein again.
In this embodiment, the backup receiving card 13 communicates with the main receiving card 10 through the adapter board 11, and monitors the operating state of the main receiving card 10, and when it is monitored that the main receiving card 10 has an error or does not operate, the backup receiving card 13 processes data instead of the main receiving card 10, and sends the processed data to the display unit board 12.
It should be noted that, in other embodiments, a data switching circuit may be disposed on the patch panel 11 to switch the main receiving card 10 and the backup receiving card 13, so as to implement data backup. Specifically, the data switching circuit may be a single chip, a digital chip, or other switching circuits. If the data switching circuit is a single chip microcomputer, the single chip microcomputer detects a plurality of signals in the main receiving card 10, when a signal error or no signal is detected, the single chip microcomputer switches the data processing function from the main receiving card 10 to the backup receiving card 13, and at this time, the backup receiving card 13 processes data and transmits the processed data to the display unit board 12. If the data switching circuit is a digital chip, the digital chip monitors whether the digital level in the main receiving card 10 has a rising edge and a falling edge, and when the digital level in the main receiving card 10 only has the rising edge or the falling edge, the digital chip switches the data processing function from the main receiving card 10 to the backup receiving card 13, and at this time, the backup receiving card 13 processes data and sends the processed data to the display unit board 12.
In this embodiment, the patch panel 11 is additionally provided with a second input interface 116 and a second output interface 118 electrically connected to the backup receiving card 13, where the second input interface 116 is used for inputting data, and the second output interface 118 is used for outputting data, that is, data to be processed is sent to the next display module 1. Preferably, the second input interface 116 and the second output interface 118 are both network ports.
Referring to fig. 5, in the present embodiment, the circuit board 120 adopts a lamp driving separation structure, that is, the circuit board includes a lamp panel 121 and a driver board 123 electrically connected through a connector 127, a plurality of pixel points are disposed on a side of the lamp panel 121 away from the driver board 123, and a plurality of driver chips 125 are disposed on a side of the driver board 123 away from the lamp panel 121.
The lamp driver is separately disposed, which is beneficial to reducing the integration level of the circuit board 120 and facilitates the layout of the driver chip 125. Especially, when the front surface of the circuit board 120 is integrated with the LED chips 122 at a high density, if the lamp driving is adopted, the circuit board 120 has more traces and a limited area on the back surface, and the driver chips 125 with a dense layout may not be able to be arranged; if the lamp driver is separated, the driving board 123 has fewer wires, and the driving chips 125 can be densely arranged.
The working principle of switching between the main receiving card 10 and the backup receiving card 13 in this embodiment is as follows:
the data transmission and processing formed by the first input interface 110, the main receiving card 10 and the first output interface 112 are independent of the data transmission and processing formed by the second input interface 116, the backup receiving card 13 and the second output interface 118, and the data processed by the main receiving card 10 and the backup receiving card 13 can be from the same transmitting card or different transmitting cards.
When the main receiving card 10 works normally, the main receiving card 10 processes the data input from the first input interface 110, and sends the processed data to the plurality of display unit boards 12 for displaying, and the first output interface 112 sends the processed data to the next adjacent display module 1. Meanwhile, the backup receiving card 13 monitors the working state of the main receiving card 10, and when it is monitored that the main receiving card 10 is faulty or not working, the backup receiving card 13 replaces the main receiving card 10, processes the data input from the second input interface 116, and sends the processed data to the plurality of display unit boards 12 for displaying, and the second output interface 118 sends the processed data to the next adjacent display module 1.
Referring to fig. 6, fig. 6 is a block diagram of a display module according to a third embodiment of the present invention. On the basis of the first embodiment, the display module 1 of the third embodiment further includes a first module power source 15, i.e. a first module power source 15 is added. The first module power supply 15 is electrically connected to the adapter plate 11 and is configured to convert a first dc voltage into a second dc voltage, where the first dc voltage is greater than the second dc voltage. Since the power input into the display module 1 needs to be stepped down by the first module power supply 15, the adapter board 11 is not provided with the power interface 114, and correspondingly, the first module power supply 15 is provided with a dc power terminal for inputting a dc power. Preferably, the dc power terminal inputs 48V power, and the voltage is reduced to 4.5V by the first module power 15.
By providing the first module power supply 15 on the display module 1, the first module power supply 15 further reduces the input dc voltage and outputs the dc voltage to the main receiving card 10 and the plurality of display unit boards 12 through the adapter board 11. And the secondary voltage reduction is adopted, so that the heat dissipation of the power supply is facilitated.
In this embodiment, the first module power supply 15 is installed on the adapter plate 11 through the connector, that is, the first module power supply 15 is integrated on the adapter plate 11, so that the first module power supply 15 is convenient to install and detach, and plugging and unplugging are facilitated. However, in other embodiments, the first module power source 15 may be separately disposed, i.e., not mounted on the adapter plate 11, and electrically connected to the adapter plate 11 through a flat cable for supplying power.
Referring to fig. 7, fig. 7 is a block diagram of a display module according to a fourth embodiment of the present invention. On the basis of the second embodiment, the display module 1 of the fourth embodiment further includes a first module power source 15, i.e. a first module power source 15 is added. For the details of the first module power supply 15, reference is made to the third embodiment, which is not described herein.
Referring to fig. 8, fig. 8 is a block diagram of a display module according to a fifth embodiment of the present invention. On the basis of the first embodiment, the display module 1 of the fifth embodiment further includes a second module power supply 16, i.e. a second module power supply 16 is added. The second module power supply 16 is electrically connected to the adapter board 11 for converting an ac power into a dc power. The second module power supply 16 replaces the first module power supply 15 of the third embodiment and is used for converting ac power into dc power, i.e. converting 220V ac voltage into 4.5V dc voltage. Obviously, under the condition of ensuring good heat dissipation, the power supply design can reduce the number of power supply devices and reduce the cost.
The utility model discloses still provide the sixth embodiment of display module assembly. On the basis of the second embodiment, the display module 1 of the sixth embodiment further includes a second module power supply 16, i.e. a second module power supply 16 is added. The second module power supply 16 is electrically connected to the adapter board 11 for converting an ac power into a dc power. The second module power supply 16 replaces the first module power supply 15 of the fourth embodiment and is used for converting ac power into dc power, i.e. converting 220V ac voltage into 4.5V dc voltage. Obviously, under the condition of ensuring good heat dissipation, the power supply design can reduce the number of power supply devices and reduce the cost.
The utility model provides a display screen, please refer to fig. 9, in the first embodiment, this display screen is including cascaded two at least display module assembly 1, this two at least display module assembly 1 splice into a display surface, this display module assembly 1's specific content is referred to above-mentioned first embodiment or second embodiment, because this embodiment display screen has adopted the whole technical scheme of the above-mentioned first embodiment or the second embodiment of display module assembly 1, consequently all beneficial effects that the technical scheme of the above-mentioned first embodiment or the second embodiment of display module assembly 1 brought have equally, no longer the repeated description one by one here.
It should be noted that, in the present invention, the number of the display modules 1 is set according to actual requirements, and may be, but not limited to, 2, 4, 6 or more. However, in the present embodiment, the number of the display modules 1 is preferably two, that is, two display modules 1 are spliced to form a display surface.
In this embodiment, the display screen further includes a first power unit 20, and the first power unit 20 is electrically connected to all the display modules 1 respectively and is configured to convert an ac power into a dc power for supplying power. The first power unit 20 converts ac power into dc power, and outputs the dc power to the power interface 114 of each display module 1 to supply power to each display module 1. Specifically, the first power supply unit 20 converts 220V of ac power into 4.5V of dc power.
Referring to fig. 10, fig. 10 is a block diagram of a display screen according to a second embodiment of the present invention. On the basis of the first embodiment, the display screen of the second embodiment further includes a second power unit 22, that is, a second power unit 22 is added. The second power unit 22 is electrically connected to all the display modules 1, and is used for converting an ac power into a dc power to supply power.
The second power supply unit 22 is added to the display screen of this embodiment, that is, the first power supply unit 20 and the second power supply unit 22 simultaneously supply power to all the display modules 1, and when the first power supply unit 20 or the second power supply unit 22 cannot work, the power supply unit that normally works can still supply power, thereby ensuring that the display screen normally works. Taking an operating current of 30A of the display module 1 as an example for explanation, the first power unit 20 and the second power unit 22 supply power simultaneously and both provide 15A of current, and when the first power unit 20 cannot operate, the second power unit 22 alone provides 30A of current for the display module 1, thereby ensuring normal operation of the display module 1.
Referring to fig. 11, fig. 11 is a block diagram of a display screen according to a third embodiment of the present invention. The difference of the display screen of the present embodiment adopting the display screen of the first embodiment is that: the display screen of the third embodiment adopts the display modules 1 of the third embodiment or the fourth embodiment, that is, each display module 1 is internally provided with the first module power supply 15.
Referring to fig. 12, fig. 12 is a block diagram of a display screen according to a fourth embodiment of the present invention. The difference of the display screen of the present embodiment adopting the display screen of the second embodiment is that: the display screen of the fourth embodiment adopts the display modules 1 of the third embodiment or the fourth embodiment, that is, each display module 1 is internally provided with the first module power supply 15.
Referring to fig. 13, fig. 13 is a block diagram of a display screen according to a fifth embodiment of the present invention. Referring to the fifth embodiment or the sixth embodiment for specific contents of the display module 1 of the display screen of this embodiment, since the display screen of this embodiment adopts all technical solutions of the fifth embodiment or the sixth embodiment of the display module 1, all beneficial effects brought by the technical solutions of the fifth embodiment or the sixth embodiment of the display module 1 are also achieved, and are not described in detail herein. 220V ac is directly input from the outside of the display screen, i.e. each display module 1 is directly connected with the mains supply.
The utility model discloses still provide the sixth embodiment of display screen, this embodiment display screen lies in with the difference of above-mentioned fifth embodiment:
each display module 1 is provided with a first module power supply 15 inside, but not a second module power supply 16, i.e. the display screen is not provided with a power supply, and is directly connected with a power supply outside the display screen. A48V direct current power supply, such as a distribution box, is directly input from the outside of the display screen.
The utility model provides a display system, in an embodiment, this display system splices into a display surface including two at least display screens of cascade, two at least display screens, and the concrete structure of this display screen refers to above-mentioned embodiment, because the display system of this embodiment has adopted all technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought equally, and it is here no longer repeated. It should be noted that, in the present invention, the number of the display screens is set according to actual requirements, and may be, but not limited to, 2, 4, 6, 8 or more.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (11)
1. A display module, comprising:
a main receiving card;
a transfer board electrically connected with the main receiving card; and the number of the first and second groups,
the display unit boards are respectively and electrically connected with the adapter board and spliced into a display surface;
each of the display unit panels includes:
a circuit board; and the number of the first and second groups,
the LED display device comprises a circuit board, a plurality of pixel points and a plurality of control circuits, wherein the circuit board is provided with a plurality of LED chips, and each pixel point comprises at least one LED chip.
2. The display module of claim 1, further comprising:
and the backup receiving card is electrically connected with the adapter plate.
3. The display module of claim 2,
the main receiving card and the backup receiving card are arranged on the adapter plate;
the adapter plate is provided with a first input interface and a first output interface which are electrically communicated with the main receiving card, and a second input interface and a second output interface which are electrically communicated with the backup receiving card,
the first input interface and the second input interface are used for inputting data;
the first output interface and the second output interface are used for outputting data.
4. The display module assembly of claim 1, wherein the circuit board comprises a lamp panel and a driver board electrically connected through a connector, the plurality of pixel points are arranged on one surface of the lamp panel away from the driver board, and the driver board is provided with a plurality of driver chips.
5. The display module according to any one of claims 1 to 4, wherein each display unit board further comprises an encapsulation layer covering the circuit board and encapsulating the plurality of pixels,
the packaging layer is provided with criss-cross grooves, the grooves divide the packaging layer into a plurality of spaced lens parts, the grooves are spaced between any two adjacent pixel points, and each lens part is arranged corresponding to one pixel point;
the packaging layer is provided with a plurality of transverse grooves, and each transverse groove is arranged between two adjacent pixel points; or,
the packaging layer is provided with a plurality of longitudinal grooves, and each longitudinal groove is arranged between two adjacent pixel points.
6. The display module according to any one of claims 1 to 4, further comprising:
the first module power supply is electrically connected with the adapter plate and used for converting first direct current voltage into second direct current voltage, and the first direct current voltage is greater than the second direct current voltage.
7. The display module according to any one of claims 1 to 4, further comprising:
and the second module power supply is electrically connected with the adapter plate and is used for converting the alternating current power supply into the direct current power supply.
8. A display screen, comprising at least two cascaded display modules, the at least two display modules being spliced into a display surface, characterized in that each of the display modules is the display module according to any one of claims 1 to 6.
9. The display screen of claim 8, further comprising:
and the first power supply unit is respectively electrically connected with all the display modules and used for converting an alternating current power supply into a direct current power supply to supply power.
10. The display screen of claim 9, further comprising:
and the second power supply unit is respectively electrically connected with all the display modules and used for converting an alternating current power supply into a direct current power supply to supply power.
11. A display system comprising at least two cascaded display screens, wherein the at least two display screens are spliced to form a display surface, and the display screen is the display screen according to any one of claims 8 to 10.
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| CN201820658831.1U CN208077542U (en) | 2018-05-04 | 2018-05-04 | display module, display screen and display system |
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| CN201820658831.1U CN208077542U (en) | 2018-05-04 | 2018-05-04 | display module, display screen and display system |
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| CN111627377A (en) * | 2020-06-12 | 2020-09-04 | 东莞阿尔泰显示技术有限公司 | Novel LED display system |
| CN111710288A (en) * | 2020-06-12 | 2020-09-25 | 东莞阿尔泰显示技术有限公司 | Improved LED display system |
| CN111739460A (en) * | 2019-03-19 | 2020-10-02 | 西安诺瓦电子科技有限公司 | Display control device and display system |
| CN111798790A (en) * | 2019-04-09 | 2020-10-20 | 西安诺瓦电子科技有限公司 | Display control card and display system |
| CN112365835A (en) * | 2019-07-26 | 2021-02-12 | 西安诺瓦星云科技股份有限公司 | Display control card and display system |
| WO2022198716A1 (en) * | 2021-03-22 | 2022-09-29 | Tcl华星光电技术有限公司 | Spliced lamp panel and display apparatus |
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2018
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| CN111739460A (en) * | 2019-03-19 | 2020-10-02 | 西安诺瓦电子科技有限公司 | Display control device and display system |
| CN111798790A (en) * | 2019-04-09 | 2020-10-20 | 西安诺瓦电子科技有限公司 | Display control card and display system |
| CN111798790B (en) * | 2019-04-09 | 2022-03-22 | 西安诺瓦星云科技股份有限公司 | Display control card and display system |
| CN112365835A (en) * | 2019-07-26 | 2021-02-12 | 西安诺瓦星云科技股份有限公司 | Display control card and display system |
| CN111627377A (en) * | 2020-06-12 | 2020-09-04 | 东莞阿尔泰显示技术有限公司 | Novel LED display system |
| CN111710288A (en) * | 2020-06-12 | 2020-09-25 | 东莞阿尔泰显示技术有限公司 | Improved LED display system |
| WO2022198716A1 (en) * | 2021-03-22 | 2022-09-29 | Tcl华星光电技术有限公司 | Spliced lamp panel and display apparatus |
| US11977297B2 (en) | 2021-03-22 | 2024-05-07 | Tcl China Star Optoelectronics Technology Co., Ltd. | Splicing type light board and display device |
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