CN220474326U - Driving device for multiple display screens - Google Patents
Driving device for multiple display screens Download PDFInfo
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- CN220474326U CN220474326U CN202321674846.4U CN202321674846U CN220474326U CN 220474326 U CN220474326 U CN 220474326U CN 202321674846 U CN202321674846 U CN 202321674846U CN 220474326 U CN220474326 U CN 220474326U
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Abstract
The utility model discloses a driving device of a plurality of display screens, which comprises: the plurality of deserializer modules correspond to the number of the display screens, the input ends of the deserializer modules are used for receiving video display signals, and the output ends of the deserializer modules are connected with the corresponding display screens; the backlight modules are corresponding to the number of the display screens and are used for controlling the backlight brightness of the corresponding display screens; the control module is connected with the plurality of deserializer modules and the plurality of backlight modules; the power module is connected with the control module, the plurality of deserializer modules and the plurality of backlight modules. The utility model can reduce the volume of the product and the cost by sharing part of circuit modules by a plurality of sets of driving architectures.
Description
Technical Field
The utility model relates to the technical field of display, in particular to a driving device for multiple display screens.
Background
The current automobile instrument panel and the central control screen are connected together, and the vehicle-mounted central control double display screen is a trend of development of an intelligent cabin system, so that the technological sense and the overall sense of the cabin system are improved, and the design of the double display screen plays a role in improving the interior decoration quality and the sensory quality.
In general, a dual display screen can be realized by two liquid crystal panels, and each liquid crystal panel needs a printed circuit board, and each circuit board drives one liquid crystal panel through a set of driving structures to display images. That is, the existing dual display screen requires two independent driving architectures to drive the dual display screen respectively, which makes the dual display screen product have larger volume and higher cost.
Disclosure of Invention
The utility model aims to solve the problems that each display screen needs a set of driving framework, and the display screen has large product size and high cost. The utility model provides a driving device for multiple display screens, which uses a plurality of sets of driving frameworks to share part of circuit modules, thereby reducing the volume of products and lowering the cost.
In order to solve the above technical problems, an embodiment of the present utility model provides a driving device for a multi-display screen, including:
the plurality of deserializer modules correspond to the number of the display screens, the input ends of the deserializer modules are used for receiving video display signals, and the output ends of the deserializer modules are connected with the corresponding display screens;
the backlight modules are corresponding to the number of the display screens and are used for controlling the backlight brightness of the corresponding display screens;
the control module is connected with the plurality of deserializer modules and the plurality of backlight modules;
the power module is connected with the control module, the plurality of deserializer modules and the plurality of backlight modules.
According to another embodiment of the utility model, each deserializer module comprises a video connector and a video decoding unit, wherein the input end of the video connector is used for receiving video display signals, the output end of the video connector is connected with the first input end of the video decoding unit, and the output end of the video decoding unit is connected with the corresponding display screen.
According to another embodiment of the utility model, the first output of the control module is connected to the second input of the video decoding unit.
According to another embodiment of the present utility model, each backlight module includes a backlight driving unit and a backlight unit, an input terminal of the backlight driving unit is connected to the second output terminal of the control module, and an output terminal of the backlight driving unit is connected to the input terminal of the backlight unit.
According to another embodiment of the present utility model, the power module includes a power connection unit, a first power unit, and a second power unit, an output end of the power connection unit is connected to an input end of the first power unit and the backlight module, an output end of the first power unit is connected to an input end of the second power unit, the video decoding unit, and the control module, and an output end of the second power unit is connected to the video decoding unit.
According to another embodiment of the present utility model, the first power supply unit is a dc power supply, the second power supply unit is a linear power supply, and the output voltage of the first power supply unit is higher than the output voltage of the second power supply.
According to another embodiment of the utility model, the third output of the control module is connected to the inputs of a plurality of display screens.
According to another embodiment of the present utility model, the plurality of deserializer modules, the plurality of backlight modules, the control module and the power module are integrated in one printed circuit board.
According to another embodiment of the utility model, the number of display screens, deserializer modules and backlight modules is two.
Compared with the prior art, the driving device for the multiple display screens, provided by the utility model, has the advantages that each display screen is connected with the corresponding deserializer module so as to display different video signal contents, the brightness of the display screen is regulated by each display screen through the corresponding backlight module, and the deserializer module and the backlight module are controlled and provided with required power supply voltage through the multiplexing control module and the power supply module, so that the number of components can be reduced, the size of a printed circuit board is further reduced, and the production cost is reduced.
Drawings
Fig. 1 is a frame diagram of a driving device for multiple display screens according to an embodiment of the present utility model.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a frame diagram of a driving device for multiple display panels according to an embodiment of the utility model. The driving device of the multi-display screen comprises:
the plurality of deserializer modules 1 correspond to the number of the display screens 5, the input ends of the deserializer modules 1 are used for receiving video display signals, and the output ends of the deserializer modules 1 are connected with the corresponding display screens 5;
the backlight modules 2 correspond to the number of the display screens 5, and the backlight modules 2 are used for controlling the backlight brightness of the corresponding display screens 5;
the control module 3 is connected with the plurality of deserializer modules 1 and the plurality of backlight modules 2;
the power module 4, the power module 4 is connected with the control module 3, the plurality of deserializer modules 1 and the plurality of backlight modules 2.
By adopting the technical scheme, each display screen 5 is connected with the corresponding deserializer module 1 to display different video signal contents, the brightness of the display screen 5 is adjusted by each display screen 5 through the corresponding backlight module 2, and the deserializer module 1 and the backlight module 2 are controlled and provided with required power supply voltage through the multiplexing control module 3 and the power supply module 4, so that the number of components can be reduced, the size of a printed circuit board is further reduced, and the production cost is reduced.
Specifically, in the present embodiment, the number of the display screens 5 may include a plurality, and may be specifically set according to actual needs. Alternatively, in an example of this embodiment, as shown in fig. 1, the number of the display screen 5, the deserializer module 1 and the backlight module 2 is two.
Specifically, in this embodiment, the display screen 5 includes two groups, and two groups of corresponding deserializer modules 1 and backlight modules 2 are needed, only one control module 3 is set, and only one group of power modules 4 is set, where the power modules 4 are connected with the control module 3, the deserializer modules 1 and the backlight modules 2 to provide power for each module, and the control module 3 is connected with each deserializer module 1, each backlight module 2 and each display screen 5 to send control signals to them. Through multiplexing control module 3 and power module 4 in the drive framework of two display screens 5, can reduce the product volume, reduction in production cost.
More specifically, the in-vehicle dual display screen 5 includes a center control screen for displaying instrument panel information, and an instrument panel for displaying car audio, navigation, vehicle information, reverse images, and the like. In this dual display product, there are two displays 5, each display 5 having a corresponding deserializer module 1 and backlight module 2 for the display 5 to display different content.
It should be noted that, the control module 3 is a single chip Microcomputer (MCU), and in practical application, a single chip microcomputer with a suitable pin number may be selected as the control module 3 according to needs.
Optionally, in this embodiment, each deserializer module 1 includes a video connector 11 and a video decoding unit 12, an input end of the video connector 11 is used for receiving a video display signal, an output end of the video connector 11 is connected with a first input end of the video decoding unit 12, and an output end of the video decoding unit 12 is connected with the corresponding display screen 5.
In a specific embodiment of the present embodiment, the video connector 11 is an LVDS connector, and an input end of the video connector is connected to a vehicle host, for receiving a video display signal sent by the vehicle host. The first input end of the video decoding unit 12 is connected with the output end of the video connector 11 to receive the video display signal output from the video connector 11, the output end of the video decoding unit 12 is connected with the corresponding display screen 5, and the display screen 5 receives the video display signal processed by the video decoding unit 12 to display the content to be displayed by the video display signal.
Further, a first output of the control module 3 is connected to a second input of the video decoding unit 12.
With this technical solution, it is possible to control whether the video decoding unit 12 outputs a video display signal and to initialize the video decoding unit 12 by the control module 3.
Alternatively, in the present embodiment, each backlight module 2 includes a backlight driving unit 21 and a backlight unit 22, and an input terminal of the backlight driving unit 21 is connected to the second output terminal of the control module 3, and an output terminal of the backlight driving unit 21 is connected to an input terminal of the backlight unit 22.
Specifically, the second output terminal of the control module 3 is connected to the input terminal of the backlight driving unit 21 to control the operation of the backlight driving unit 21. The output terminal of the backlight driving unit 21 is connected to the input terminal of the backlight unit 22, so that the brightness of the backlight unit 22 can be controlled, thereby adjusting the brightness of the display screen 5.
Alternatively, in the present embodiment, as shown in fig. 1, the power module 4 includes a power connection unit 41, a first power unit 42, and a second power unit 43, where an output end of the power connection unit 41 is connected to an input end of the first power unit 42 and the backlight module 2, an output end of the first power unit 42 is connected to an input end of the second power unit 43, the video decoding unit 12, and the control module 3, and an output end of the second power unit 43 is connected to the video decoding unit 12.
Specifically, the power supply connection unit 41, the first power supply unit 42, and the second power supply unit 43 are sequentially connected in series. The power connection unit 41 is used for being connected with a level for supplying power to the whole vehicle so as to supply power to the whole circuit board. The control module 3 takes power from the output end of the first power supply unit 42, the backlight module 2 takes power from the output end of the power supply connection unit 41, and the video decoding unit 12 has two power supply input ports, wherein one power supply input port is connected with the output end of the first power supply unit 42, and the other power supply input port is connected with the output end of the second power supply unit 43.
More specifically, the first power supply unit 42 is a dc power supply, such as a DCDC power supply, the second power supply unit 43 is a linear power supply, such as a LDO (Low Dropout Regulator) power supply, the voltages output by both power supplies are dc power supplies, and the output voltage of the first power supply unit 42 is higher than the output voltage of the second power supply unit 43.
By adopting the technical scheme, the power supply voltage required by each module on the circuit board can be provided.
Further, a third output of the control module 3 is connected to inputs of a plurality of display screens 5.
With this technical solution, the display 5 can be initialized by the control module 3.
Further, the plurality of deserializer modules 1, the plurality of backlight modules 2, the control module 3 and the power module 4 are integrated in one printed circuit board.
By integrating the control module 3, the power module 4, and the deserializer module 1 and the backlight module 2 corresponding to each display screen 5 on a single printed circuit board, the performance redundancy of the chip can be utilized to the maximum, the waste is reduced, the number of the chips used is reduced, and the whole volume of the double-screen or multi-screen product is reduced. The manufacturing process of the double-screen or multi-screen product is correspondingly reduced, and the working hours are shortened, so that the cost is reduced.
According to the driving device for multiple display screens provided by the utility model, each display screen 5 is connected with the corresponding deserializer module 1 to display different video signal contents, the brightness of the display screen 5 is regulated by each display screen 5 through the corresponding backlight module 2, and the deserializer module 1 and the backlight module 2 are controlled and required voltages are provided by the multiplexing control module 3 and the power module 4, so that the number of components can be reduced, the size of a printed circuit board can be further reduced, and the production cost can be reduced.
While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.
Claims (9)
1. A multi-display driving apparatus, comprising:
the plurality of deserializer modules correspond to the number of the display screens, the input ends of the deserializer modules are used for receiving video display signals, and the output ends of the deserializer modules are connected with the corresponding display screens;
the backlight modules are corresponding to the number of the display screens and are used for controlling the backlight brightness of the corresponding display screens;
the control module is connected with the plurality of deserializer modules and the plurality of backlight modules;
the power module is connected with the control module, the plurality of deserializer modules and the plurality of backlight modules.
2. The multi-display driving device according to claim 1, wherein each of the deserializer modules comprises a video connector and a video decoding unit, wherein an input end of the video connector is used for receiving the video display signal, an output end of the video connector is connected with a first input end of the video decoding unit, and an output end of the video decoding unit is connected with the corresponding display.
3. The multi-display driving device according to claim 2, wherein a first output terminal of the control module is connected to a second input terminal of the video decoding unit.
4. The driving apparatus of claim 1, wherein each of the backlight modules includes a backlight driving unit and a backlight unit, an input terminal of the backlight driving unit is connected to the second output terminal of the control module, and an output terminal of the backlight driving unit is connected to the input terminal of the backlight unit.
5. The driving device for multiple display screens according to claim 2, wherein the power supply module comprises a power supply connection unit, a first power supply unit and a second power supply unit, an output end of the power supply connection unit is connected with an input end of the first power supply unit and the backlight module, an output end of the first power supply unit is connected with an input end of the second power supply unit, the video decoding unit and the control module, and an output end of the second power supply unit is connected with the video decoding unit.
6. The driving device for multiple display screens according to claim 5, wherein the first power supply unit is a dc power supply, the second power supply unit is a linear power supply, and an output voltage of the first power supply unit is higher than an output voltage of the second power supply.
7. The multi-display driving device according to claim 1, wherein a third output terminal of the control module is connected to input terminals of a plurality of the display panels.
8. The multi-display driving device according to claim 1, wherein the plurality of deserializer modules, the plurality of backlight modules, the control module, and the power module are integrated in one printed circuit board.
9. The multi-display driving device according to claim 1 or 8, wherein the number of the display, the deserializer module, and the backlight module is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674846.4U CN220474326U (en) | 2023-06-28 | 2023-06-28 | Driving device for multiple display screens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674846.4U CN220474326U (en) | 2023-06-28 | 2023-06-28 | Driving device for multiple display screens |
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| Publication Number | Publication Date |
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| CN220474326U true CN220474326U (en) | 2024-02-09 |
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| CN202321674846.4U Active CN220474326U (en) | 2023-06-28 | 2023-06-28 | Driving device for multiple display screens |
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| CN (1) | CN220474326U (en) |
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- 2023-06-28 CN CN202321674846.4U patent/CN220474326U/en active Active
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