CN111223414A - Display module assembly capable of being installed at any angle - Google Patents
Display module assembly capable of being installed at any angle Download PDFInfo
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- CN111223414A CN111223414A CN202010095757.9A CN202010095757A CN111223414A CN 111223414 A CN111223414 A CN 111223414A CN 202010095757 A CN202010095757 A CN 202010095757A CN 111223414 A CN111223414 A CN 111223414A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The application provides a display module assembly of angle installation wantonly, this display module assembly is the square, and display module assembly includes four input contacts, power polarity management module, power supply polarity conversion module and the rotatory management module of picture, and the input contact is connected with power polarity management module, and power polarity management module is connected with power supply polarity conversion module, and power supply polarity conversion module is connected with the rotatory management module of picture. The application discloses a display module assembly can guarantee to carry out the picture rotation for display module assembly correct power supply according to the automatic positive negative pole of conversion of the angle of actual installation simultaneously to carry out correct picture display, at the actual installation in-process, need not to confirm positive negative pole, direct mount can, can effectively avoid the short circuit condition that assembly error caused.
Description
Technical Field
The application relates to the field of LED display screens, in particular to a display module capable of being installed at any angle.
Background
When the LED display screen modules are electrically spliced, the LED display screen modules are connected according to the positive and negative poles, so that each module is a fixed positive pole and a fixed negative pole, and is positive left and right or positive top and negative bottom, so that the modules are designed in advance in the manufacturing and assembling process, and if errors occur in the manufacturing and assembling process or errors occur in the installation process, the same-level connection is caused, and a short circuit is caused.
In view of the above, overcoming the deficiencies of the prior art is an urgent problem in the art.
Disclosure of Invention
The main technical problem who solves of this application provides a display module assembly of angle installation wantonly, and this display module assembly can be according to the angle automatic switching positive negative pole of actual installation, guarantees to supply power for display module assembly is correct, can carry out the picture rotation according to the angle of actual installation simultaneously to carry out the correct picture and show, in the actual installation, need not to confirm positive negative pole, direct mount can, not only simplified the installation, can also effectively avoid the short circuit condition that assembly error caused.
In order to solve the technical problem, the application adopts a technical scheme that: the display module can be installed at any angle and is square, the display module comprises four input contacts, a power polarity management module, a power polarity conversion module and a picture rotation management module, the input contacts are connected with the power polarity management module, the power polarity management module is connected with the power polarity conversion module, and the power polarity conversion module is connected with the picture rotation management module;
the input contact is used for being connected with a power supply end, and the power polarity management module is used for detecting the voltage polarity received by each input contact and transmitting the voltage polarity corresponding to each input contact to the power supply polarity conversion module;
the power supply polarity conversion module is used for supplying power to the display module according to the voltage polarity corresponding to each input contact;
the image rotation management module is used for determining the rotation angle of the display module according to the voltage polarity corresponding to each input contact so as to rotate the image displayed by the display module according to the rotation angle, and therefore the image is displayed correctly.
Preferably, the distance between each input contact and the center of the display module is equal, and each input contact is located on a diagonal line of the display module.
Preferably, at the power supply end, power supply is connected in a pogopin mode, and two adjacent pogopins of the power supply end are connected with voltages with different polarities.
Preferably, the input contacts are specifically an input contact 1, an input contact 2, an input contact 3 and an input contact 4, and the input contact 1, the input contact 2, the input contact 3 and the input contact 4 are arranged along the display module according to a counterclockwise direction or a clockwise direction;
when the input contact 1 and the input contact 3 both receive positive voltage and the input contact 2 and the input contact 4 both receive negative voltage, the display module is switched in the positive direction;
when the display module rotates 90 degrees along the clockwise direction, the input contact 1 is connected with a negative voltage, the input contact 2 is connected with a positive voltage, the input contact 3 is connected with a negative voltage, and the input contact 4 is connected with a positive voltage;
when the display module rotates 180 degrees in the clockwise direction, the input contact 1 and the input contact 3 are both connected with positive voltage, and the input contact 2 and the input contact 4 are connected with positive voltage;
when the display module rotates 270 degrees along the clockwise direction, the input contact 1 is connected with a negative voltage, the input contacts 2 are connected with a positive voltage, the input contact 3 is connected with a negative voltage, and the input contact 4 is connected with a positive voltage.
Preferably, the display module assembly comprises a wireless receiving module, and the wireless receiving module is located at the right center of the display module assembly.
Preferably, the power polarity management module comprises two rectifier bridges, and each two input contacts are connected with one of the rectifier bridges;
the rectifier bridge is used for converting voltage polarity.
Preferably, the power polarity management module further includes four ADC modules, an MCU, a positive gating module and a negative gating module, each ADC module is connected to each input contact, each ADC module is connected to the MCU, and the MCU is respectively connected to the positive gating module and the negative gating module;
the positive gating module and the negative gating module are also respectively connected with the power supply polarity conversion module to inform the voltage polarity received by each input contact;
the MCU is also connected with the picture rotation management module to inform the rotation angle of the display module, so that the picture rotation management module rotates the picture displayed by the display module according to the rotation angle, and the picture is displayed correctly.
Preferably, the picture rotation management module comprises an image data format conversion module, a rotation processing module, an image data writing interface, a writing FIFO, a reading FIFO and a module driving module;
the image data format conversion module is connected with the wireless receiving module and is used for converting the format of the image received by the wireless receiving module;
the image data writing interface is respectively connected with the image data format conversion module and the writing FIFO and is used for transmitting images;
the rotation processing module is used for carrying out image rotation processing according to the rotation angle;
the module driving module is used for driving the display module to display the picture.
Preferably, the frame rotation management module further comprises a storage module, and the storage module is respectively connected with the write FIFO and the read FIFO.
The beneficial effect of this application is: the application provides a display module capable of being installed at any angle, which is characterized in that the display module is square, and comprises four input contacts, a power polarity management module, a power supply polarity conversion module and a picture rotation management module, wherein the input contacts are connected with the power polarity management module, the power supply polarity management module is connected with the power supply polarity conversion module, and the power supply polarity conversion module is connected with the picture rotation management module; the power polarity management module is used for detecting the voltage polarity received by each input contact and transmitting the voltage polarity corresponding to each input contact to the power supply polarity conversion module; the power supply polarity conversion module is used for supplying power to the display module according to the voltage polarity corresponding to each input contact; the image rotation management module is used for determining the rotation angle of the display module according to the voltage polarity corresponding to each input contact so as to rotate the image displayed by the display module according to the rotation angle, and therefore the image is displayed correctly.
The application discloses a display module assembly can guarantee to carry out the picture rotation for display module assembly correct power supply according to the automatic positive negative pole of conversion of the angle of actual installation simultaneously to carry out correct picture display, at the actual installation in-process, need not to confirm positive negative pole, direct mount can, can effectively avoid the short circuit condition that assembly error caused.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic circuit topology diagram of a display module capable of being mounted at any angle according to an embodiment of the present disclosure;
fig. 2 is a diagram illustrating an arrangement manner of input contacts of a display module according to an embodiment of the present disclosure;
fig. 3 is another arrangement of input contacts of a display module according to an embodiment of the present disclosure;
fig. 4 is a schematic signal flow diagram of a display module capable of being mounted at any angle according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a power polarity management module according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a rectifier bridge connected to an input contact according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of the positive pole gating module and the negative pole gating module in fig. 5 provided in an embodiment of the present application;
fig. 8 is a schematic structural diagram of a screen rotation management module according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
In this embodiment, as shown in fig. 1 and 4, a display module assembly capable of being installed at any angle is provided, the display module assembly is square, the display module assembly includes four input contacts, a power polarity management module, a power supply polarity conversion module and a picture rotation management module, the input contacts are connected to the power polarity management module, the power polarity management module is connected to the power supply polarity conversion module, and the power supply polarity conversion module is connected to the picture rotation management module.
In practical use, the input contacts are used for being connected with a power supply terminal, and the power polarity management module is used for detecting the voltage polarity (positive voltage or negative voltage) received by each input contact and transmitting the voltage polarity corresponding to each input contact to the power supply polarity conversion module.
The power supply polarity conversion module is used for supplying power to the display module according to the voltage polarity corresponding to each input contact; the image rotation management module is used for determining the rotation angle of the display module according to the voltage polarity corresponding to each input contact so as to rotate the image displayed by the display module according to the rotation angle, and therefore the image is displayed correctly.
The display module assembly comprises a wireless receiving module, and the wireless receiving module is located in the center of the display module assembly. The wireless receiving module can be a near-field wireless communication module, and the main frequency of the wireless receiving module is higher (not less than 6GHz), so that the data has stronger directivity, the wireless receiving module is required to be located at the center of the display module to ensure that any rotation can be aligned with the transmitting end, and the received data quality is further ensured.
In conjunction with fig. 2 and 3, the position where the input contact is disposed is not unique, and has various options, but the following conditions need to be satisfied: the distance between each input contact and the center of the display module is equal, and each input contact is located on the diagonal line of the display module. For example, the input contacts in fig. 2 are closer to the center of the display module than the input contacts in fig. 3, and in this way, the positions of the input contacts can be set according to actual requirements to meet the wiring requirements or other requirements.
In a practical application scenario, for convenience of installation, power supply is connected at the power supply end in a pogopin mode. In order to ensure that the display module can be installed at any angle, two pogopins adjacent to the power supply end are connected with voltages with different polarities. It will be appreciated that there are also four pogopins at the supply terminals for delivering voltages, with adjacent ones delivering positive and negative voltages respectively.
Specifically, the input contacts are specifically an input contact 1, an input contact 2, an input contact 3, and an input contact 4, and the input contact 1, the input contact 2, the input contact 3, and the input contact 4 are disposed along the display module according to a counterclockwise direction (as shown in fig. 2) or a clockwise direction (as shown in fig. 3).
When the input contact 1 and the input contact 3 both receive positive voltage and the input contact 2 and the input contact 4 both receive negative voltage, the display module is switched in the positive direction (that is, the power supply logic is (+, -, +, -); when the display module rotates 90 degrees clockwise, the input contact 1 is connected with a negative voltage, the input contact 2 is connected with a positive voltage, the input contact 3 is connected with a negative voltage, the input contact 4 is connected with a positive voltage (namely, the power supply logic is (-, +, -, +)), the power polarity management can determine the rotating angle of the display module relative to the positive access according to the change of the power supply logic, and at the moment, the power polarity management module can inform the power supply polarity conversion module to supply power to each module of the display module according to the correct power supply polarity. After the power supply is finished, the display module receives the image data, and the power polarity management module informs the picture rotation management module to rotate the currently displayed picture to a specified angle (90 degrees), so that the picture is correctly displayed.
When the display module rotates 180 degrees clockwise, the input contact 1 and the input contact 3 are both connected with positive voltage, the input contact 2 and the input contact 4 are connected with positive voltage (namely, the power supply logic is (+, +, +, -), the power polarity management can determine the rotating angle of the display module relative to the positive direction according to the change of the power supply logic, and at this time, the power polarity management module can inform the power supply polarity conversion module to supply power to the modules of the display module according to the correct power supply polarity. After the power supply is finished, the display module receives the image data, and the power polarity management module informs the picture rotation management module to rotate the currently displayed picture to a specified angle (180 degrees), so that the picture is correctly displayed.
When the display module rotates 270 degrees along the clockwise direction, the input contact 1 is connected with a negative voltage, the input contacts 2 are connected with a positive voltage, the input contact 3 is connected with a negative voltage, the input contact 4 is connected with a positive voltage (namely, the power supply logic is (-, +, -, +)), the power polarity management can determine the rotating angle of the display module relative to the positive access according to the change of the power supply logic, and at the moment, the power polarity management module can inform the power supply polarity conversion module to supply power to each module of the display module according to the correct power supply polarity. After the power supply is finished, the display module receives the image data, and the power polarity management module informs the picture rotation management module to rotate the currently displayed picture to a specified angle (270 degrees), so that the picture is correctly displayed.
As shown in fig. 5, the power polarity management module further includes four ADC modules, an MCU, a positive gating module and a negative gating module, where each ADC module is connected to each input contact, each ADC module is connected to the MCU, and the MCU is respectively connected to the positive gating module and the negative gating module;
the positive gating module and the negative gating module are also respectively connected with the power supply polarity conversion module to inform the voltage polarity received by each input contact; the MCU is also connected with the picture rotation management module to inform the rotation angle of the display module, so that the picture rotation management module rotates the picture displayed by the display module according to the rotation angle, and the picture is displayed correctly.
As shown in fig. 6, the power polarity management module includes two rectifier bridges, and each of the two input contacts is connected to one of the rectifier bridges, where VIN _ P1 to VIN _ P4 in the figure represent voltages received by the input contacts 1 to 4, respectively.
As shown in fig. 7, the positive gating module and the negative gating module respectively include four MOSFETs, and the positive gating and the negative gating are performed in combination with other electrical devices (see fig. 7 in detail).
As shown in fig. 8, the image rotation management module may specifically include an FPGA module, where the FPGA module includes an image data format conversion module, a rotation processing module, an image data writing interface, a writing FIFO, a reading FIFO, and a module driving module; the image data format conversion module is connected with the wireless receiving module and is used for converting the format of the image received by the wireless receiving module; the image data writing interface is respectively connected with the image data format conversion module and the writing FIFO and is used for transmitting images; the rotation processing module is used for carrying out image rotation processing according to the rotation angle; the module driving module is used for driving the display module to display the picture.
In addition, the picture rotation management module further comprises a storage module, and the storage module is respectively connected with the write FIFO and the read FIFO. The storage module may be an SDRAM.
The application discloses a display module assembly can guarantee to carry out the picture rotation for display module assembly correct power supply according to the automatic positive negative pole of conversion of the angle of actual installation simultaneously to carry out correct picture display, at the actual installation in-process, need not to confirm positive negative pole, direct mount can, can effectively avoid the short circuit condition that assembly error caused.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.
Claims (9)
1. A display module capable of being installed at any angle is characterized in that the display module is square, the display module comprises four input contacts, a power polarity management module, a power polarity conversion module and a picture rotation management module, the input contacts are connected with the power polarity management module, the power polarity management module is connected with the power polarity conversion module, and the power polarity conversion module is connected with the picture rotation management module;
the input contact is used for being connected with a power supply end, and the power polarity management module is used for detecting the voltage polarity received by each input contact and transmitting the voltage polarity corresponding to each input contact to the power supply polarity conversion module;
the power supply polarity conversion module is used for supplying power to the display module according to the voltage polarity corresponding to each input contact;
the image rotation management module is used for determining the rotation angle of the display module according to the voltage polarity corresponding to each input contact so as to rotate the image displayed by the display module according to the rotation angle, and therefore the image is displayed correctly.
2. The display module of claim 1, wherein each of the input contacts is equidistant from a center of the display module, and each of the input contacts is located on a diagonal of the display module.
3. The display module assembly of claim 1, wherein the power supply terminals are connected by pogopin, and two adjacent pogopin of the power supply terminals are connected with voltages with different polarities.
4. The display module according to claim 3, wherein the input contacts are specifically an input contact 1, an input contact 2, an input contact 3 and an input contact 4, and the input contact 1, the input contact 2, the input contact 3 and the input contact 4 are arranged along the display module in a counterclockwise direction or a clockwise direction;
when the input contact 1 and the input contact 3 both receive positive voltage and the input contact 2 and the input contact 4 both receive negative voltage, the display module is switched in the positive direction;
when the display module rotates 90 degrees along the clockwise direction, the input contact 1 is connected with a negative voltage, the input contact 2 is connected with a positive voltage, the input contact 3 is connected with a negative voltage, and the input contact 4 is connected with a positive voltage;
when the display module rotates 180 degrees in the clockwise direction, the input contact 1 and the input contact 3 are both connected with positive voltage, and the input contact 2 and the input contact 4 are connected with positive voltage;
when the display module rotates 270 degrees along the clockwise direction, the input contact 1 is connected with a negative voltage, the input contacts 2 are connected with a positive voltage, the input contact 3 is connected with a negative voltage, and the input contact 4 is connected with a positive voltage.
5. The display module assembly according to any one of claims 1 to 4, wherein the display module assembly comprises a wireless receiving module, and the wireless receiving module is located at the center of the display module assembly.
6. The display module according to any one of claims 1 to 4, wherein the power polarity management module comprises two rectifier bridges, and each two input contacts are connected with one of the rectifier bridges;
the rectifier bridge is used for converting voltage polarity.
7. The display module of claim 6, wherein the power polarity management module further comprises four ADC modules, an MCU, a positive gating module and a negative gating module, each ADC module is connected to each input contact, each ADC module is connected to the MCU, and the MCU is respectively connected to the positive gating module and the negative gating module;
the positive gating module and the negative gating module are also respectively connected with the power supply polarity conversion module to inform the voltage polarity received by each input contact;
the MCU is also connected with the picture rotation management module to inform the rotation angle of the display module, so that the picture rotation management module rotates the picture displayed by the display module according to the rotation angle, and the picture is displayed correctly.
8. The display module according to any one of claims 1 to 4, wherein the frame rotation management module comprises an image data format conversion module, a rotation processing module, an image data write interface, a write FIFO, a read FIFO, and a module driving module;
the image data format conversion module is connected with the wireless receiving module and is used for converting the format of the image received by the wireless receiving module;
the image data writing interface is respectively connected with the image data format conversion module and the writing FIFO and is used for transmitting images;
the rotation processing module is used for carrying out image rotation processing according to the rotation angle;
the module driving module is used for driving the display module to display the picture.
9. The display module of claim 8, wherein the frame rotation management module further comprises a storage module, and the storage module is respectively connected to the write FIFO and the read FIFO.
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| CN202010095757.9A CN111223414A (en) | 2020-02-17 | 2020-02-17 | Display module assembly capable of being installed at any angle |
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| CN202010095757.9A CN111223414A (en) | 2020-02-17 | 2020-02-17 | Display module assembly capable of being installed at any angle |
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