CN103021340B - A kind of LED display screen control device - Google Patents
A kind of LED display screen control device Download PDFInfo
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- CN103021340B CN103021340B CN201210591003.8A CN201210591003A CN103021340B CN 103021340 B CN103021340 B CN 103021340B CN 201210591003 A CN201210591003 A CN 201210591003A CN 103021340 B CN103021340 B CN 103021340B
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Abstract
The present invention provides a kind of LED display screen control device, to solve the problem such as existing LED display screen control device load capacity difference and/or image-capable difference. The present invention places audio frequency and video output network interface by one circuit board of additional, increases load capacity; Additionally, by dividing upper and lower two-layer mounting arrangement by two circuit boards, spatially add utilization rate. It addition, when described audio/video decoding chip includes HDMI decoder module, then can increase HDMI image-capable, making control device can carry high-definition image data by band, range of application is wider.
Description
Technical field
The invention belongs to LED display and control technical field, particularly relate to a kind of LED display screen control device.
Background technology
In the high speed development process of current informationized society now, large screen display has become as a kind of effective means of public information display. But LED display is when showing view data at present, owing to the precision of view data is processed inadequate etc. by the restriction of hardware itself and computer, all cannot be mated with video image, image blurring unintelligible, the phenomenon such as color does not work, sophistication is inadequate can be caused, so, existing control device (or claiming controller) ratio is more suitable for some occasions that image request is not high, then cannot process for HD video and high-definition data image, and its particular problem is as follows:
1, the load capacity of controller can support that to it maximum pixel area of display screen is relevant, existing control device limits due to load capacity, being difficult to meet the control of super large display screen, therefore technical staff is adopted and by two sets or the more device that controls, super large display screen is controlled.
2, image procossing precision is inadequate, and image can be made to look fuzzy, and fine and smooth sense is not. The image-capable of existing control device is maintained at the RGB source information of 8bit, and for the film source of HD video, the video source playback process ability such as 12bit is poor.
In sum, the defect of the aspects such as LED display screen control device load capacity, image-capable, can make the adnexa that user's in use additional configuration is much unnecessary, even because load capacity is not enough, need again multi-configuration one to control device, cause substantial amounts of waste.
Summary of the invention
The present invention provides a kind of LED display screen control device, to solve the problem such as existing LED display screen control device load capacity difference and/or image-capable difference.
Specifically, a kind of LED display screen control device that the embodiment of the present invention provides, including the second circuit board that first circuit board, audio-video interface, communication interface, audio frequency and video processing module, processor and network transmission module electrically connect with first circuit board; Described audio-video interface is arranged on first circuit board, described communication interface, audio frequency and video processing module, processor and network transmission module are arranged on first circuit board and/or second circuit board, and described second circuit board is provided with at least one audio frequency and video output network interface.
Above-mentioned communication interface is such as USB (UniversalSerialBus, USB (universal serial bus)) interface, serial ports or network interface.
Above-mentioned audio-video interface such as includes DVI interface (DigitalVisualInterface, Digital Visual Interface) and audio interface, and audio-video interface is one or more groups.
The type of above-mentioned audio-video interface is such as HDMI (HighDefinitionMultimediaInterface, HDMI), DP interface (DisplayPort, a kind of coffret of high-resolution audio/video flow), arbitrary or any two kinds and any of the above in SDI interface (Serialdigitalinterface, digital component serial line interface) be combined.
Above-mentioned audio frequency and video processing module such as includes audio/video decoding chip and PLD.
Above-mentioned audio/video decoding chip such as includes HDMI decoder module, can support the decoding of HDMI signal format and DVI signal format simultaneously; Also include audio decoder module, in order to when above-mentioned LED display screen control device receives the audio signal that adjoint DVI video signal together inputs, the audio signal of input is decoded (such as including analog/digital conversion).
Above-mentioned first circuit board and second circuit board such as divide upper and lower two-layer mounting arrangement, to reduce installation footprint, increase space availability ratio.
Above-mentioned first circuit board such as forms electrical connection by pricking with needle fixing connection with second circuit board.
Above-mentioned LED display screen control device can also set up box-like housing, first circuit board, second circuit board, audio frequency and video processing module, processor and network transmission module are arranged in above-mentioned housing, described audio-video interface, communication interface and audio frequency and video output network interface expose to above-mentioned housing, such whole LED display screen control device then can independently constitute a Portable LED display screen controller, and the use that is easy to carry.
From the foregoing, it will be observed that the embodiment of the present invention places audio frequency and video output network interface by one circuit board of additional, increase load capacity; Additionally, by dividing upper and lower two-layer mounting arrangement by two circuit boards, spatially add utilization rate. It addition, when described audio/video decoding chip includes HDMI decoder module, then can increase HDMI image-capable, making control device can carry high-definition image data by band, range of application is wider.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of LED display screen control device of the embodiment of the present invention;
Fig. 2 is the structural representation of a kind of LED display screen control device of another embodiment of the present invention;
Fig. 3 is the main element composition schematic diagram of each circuit board of LED display screen control device shown in Fig. 1;
The source signal that Fig. 4 is LED display screen control device shown in Fig. 3 processes and output procedure schematic diagram.
Detailed description of the invention
For further setting forth that the present invention reaches technological means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to its detailed description of the invention of LED display screen control device proposed according to the present invention, structure, feature and effect, describe in detail as after.
For the present invention aforementioned and other technology contents, feature and effect, can clearly present in following cooperation describes in detail with reference to graphic preferred embodiment. By the explanation of detailed description of the invention, when can be reach technological means that predetermined purpose takes and effect is able to more deeply and concrete understanding to the present invention, however institute's accompanying drawings be only to provide with reference to and purposes of discussion, be not used for the present invention is any limitation as.
Referring to Fig. 1, the embodiment of the present invention provides a kind of LED display screen control device 10 to include circuit board 11, circuit board 15, the pricking with needle (or claiming pricking with needle adapter) connecting circuit board 11 and 15 and box-like housing 17; Wherein, circuit board 11 and about 15 points two-layer mounting arrangements of circuit board are in box-like housing 17, circuit board 11 is provided with the audio-video interface 110 and communication interface 112 that expose to box-like housing 17, circuit board 15 is provided with the multiple audio frequency and video output network interfaces 150 exposing to box-like housing 17, for instance 4 shown in Fig. 1. In FIG, by circuit board 11 and about 15 points two-layer mounting arrangements in box-like housing 17, one can promote the horizontal direction space availability ratio in box-like housing 17, and two then make the whole LED display screen control device 10 can the use that is easy to carry as a Portable LED display screen controller. At this it should be noted that be not limited to utilize pricking with needle to achieve a fixed connection and electrically connect between circuit board 11 and 15, it can also adopt other electric connection mode to be electrically connected for example with flexible winding displacement; Circuit board 11 and 15 is except being installed on as shown in Figure 1 in box-like housing 17, it is also possible to be directly installed in actual use in computer housing. Additionally, from Fig. 1 it appeared that: audio-video interface 110 and network interface 150 are divided on circuit board 11 and 15, certainly, can also be as shown in Figure 2, except circuit board 15 is provided with audio frequency and video output network interface 150, circuit board 11 can also arrange network interface 114, equally as the use of audio frequency and video output.
More specifically, as it is shown on figure 3, on circuit board 11 except being provided with audio-video interface 110 and communication interface 112, be additionally provided with other functional modules such as audio frequency and video processing module 111 and processor 113; On circuit board 15 except being provided with multiple network interface 150 as audio frequency and video output, it is additionally provided with other functional modules such as network transmission module 152. Wherein, audio-video interface 110 includes one group of DVI interface and audio interface, naturally it is also possible to have many group interfaces, for instance also include HDMI, even can also include the audio-video interface such as DP interface, SDI interface. Different audio-video interfaces needs correspondence to use supporting audio/video decoding module. Audio frequency and video processing module 111 includes audio/video decoding chip and PLD; DVI interface and audio interface and HDMI electrically connect with audio/video decoding chip respectively, and audio/video decoding chip is electrically connected to PLD such as field programmable gate array (Fieldprogrammablegatearray, FPGA). Preferably, audio/video decoding chip includes HDMI decoder module, so can support the decoding of HDMI signal format and DVI signal format simultaneously; Namely add HDMI image-capable for tradition LED display screen control device, and make LED display screen control device can carry high-definition image data by band, range of application is wider.In addition; when LED display screen control device 10 is provided with DVI interface; DVI interface and HDMI are electrically connected to HDMI decoder module; and generally also extra increase audio decoder module in audio/video decoding chip; so that when above-mentioned LED display screen control device 10 receives the audio signal that adjoint DVI video signal together inputs, the audio signal of input being decoded (such as including analog/digital conversion). Additionally, communication interface 112 is such as USB interface, RS232 or RS485 serial ports, or network interface, it is electrically connected to processor 113, and processor 113 is electrically connected to PLD, such user can by communication interface 112 and via processor 113 PLD configured and/or program. At this, processor 113 is such as microprocessor (Microprocessingunit, MPU), and it also can electrically connect with clock chip and flash memory (Flash); So, it may be achieved the clock control to the network transmission module 152 on PLD and circuit board 15. For the network transmission module 152 on circuit board 15, it is such as network card chip, the audio, video data that PLD provides is transferred to each network interface 150, reaches the purpose of audio frequency and video output.
Referring to Fig. 4, it processes and output procedure schematic diagram for the source signal of the LED display screen control device shown in Fig. 3 in the embodiment of the present invention. when being provided the source signal of 8 (bit) or 12 by the audio-video interface 110 of circuit board 11, these source signals can be sent to audio frequency and video processing module 111, the view data of such as 36 is converted to by audio/video decoding chip, then the view data received is packed and writes memorizer (the such as DDR2 electrically connected with PLD by PLD, in Fig. 4 not shown) in carry out buffer memory, and be followed by the control by processor 113 having packed and by network transmission module 152, the view data of packing be forwarded to network interface 150 and send out, such as it is sent to LED display to display and/or play.
As from the foregoing, the embodiment of the present invention increases a circuit board by extra, for traditional LED display screen control device so that whole LED display screen control device can place more audio frequency and video output network interface, significantly increase the load capacity controlling device; And thus, it will be understood by those skilled in the art that, the quantity of the network interface 114 and 150 on circuit board 11 and 15 in above-described embodiment is not limited to the quantity shown in Fig. 1 and Fig. 2, as long as another circuit outside the circuit board being provided with audio-video interface is provided with the design of audio frequency and video output network interface, should be included in the scope of the present invention. In addition, the position that arranges for the audio frequency and video processing module 111 in Fig. 3, communication interface 112 and processor 113 can elastic be arranged, and be not limited in being provided entirely on circuit board 11 by audio frequency and video processing module 111, communication interface 112, processor 113, a portion also can be moved on circuit board 15 by it. It addition, in the above-described embodiments, when adopting the design that two circuit boards are divided upper and lower two-layer mounting arrangement, utilization rate can spatially be added; And when audio/video decoding chip includes HDMI decoder module, it is also possible to increasing HDMI image-capable, make control device can carry high-definition image data by band, range of application is wider.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, without departing within the scope of technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solution of the present invention content, according to any simple modification that above example is made by the technical spirit of the present invention, equivalent variations and modification, all still fall within the scope of technical solution of the present invention.
Claims (8)
1. a LED display screen control device, including first circuit board, audio-video interface, communication interface, audio frequency and video processing module, processor and network transmission module, described audio-video interface is arranged on described first circuit board; It is characterized in that: also include the second circuit board electrically connected with first circuit board, described first circuit board and second circuit board divide upper and lower two-layer mounting arrangement; Described communication interface, audio frequency and video processing module, processor and network transmission module are arranged on first circuit board and/or second circuit board, and described second circuit board is provided with at least one audio frequency and video output network interface;
Described audio frequency and video processing module includes audio/video decoding chip and Programmadle logic device, described audio-video interface, described audio/video decoding chip and described Programmadle logic device sequentially electrically connect, and described Programmadle logic device electrically connects with described processor and described network transmission module respectively, described processor electrically connects for by described communication interface for user described PLD being configured and/or programmed with described communication interface, and described processor electrically connects described network transmission module, for controlling described network transmission module, the data packed by described Programmadle logic device is sent at least one described audio frequency and video output network interface.
2. LED display screen control device according to claim 1, it is characterised in that: described audio frequency and video output network interface is 4.
3. LED display screen control device according to claim 1, it is characterised in that: described communication interface is USB interface, serial ports or network interface.
4. LED display screen control device according to claim 1, it is characterised in that: described audio-video interface includes DVI interface and audio interface, and audio-video interface is one or more groups.
5. LED display screen control device according to claim 1, it is characterised in that: arbitrary or any two kinds and any of the above that the type of described audio-video interface is in HDMI, DP interface, SDI interface are combined.
6. LED display screen control device according to claim 1, it is characterised in that: described audio/video decoding chip includes HDMI decoder module and audio decoder module, and described HDMI decoder module and HDMI and DVI interface electrical connection.
7. LED display screen control device according to claim 1, it is characterised in that: described first circuit board is connected to form electrical connection by pricking with needle is fixing with second circuit board.
8. LED display screen control device according to claim 1, it is characterized in that: also include box-like housing, described first circuit board, second circuit board, audio frequency and video processing module, processor and network transmission module are arranged in described housing, and described audio-video interface, communication interface and audio frequency and video output network interface expose to described housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210591003.8A CN103021340B (en) | 2012-12-28 | 2012-12-28 | A kind of LED display screen control device |
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| CN201210591003.8A CN103021340B (en) | 2012-12-28 | 2012-12-28 | A kind of LED display screen control device |
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| CN103021340A CN103021340A (en) | 2013-04-03 |
| CN103021340B true CN103021340B (en) | 2016-06-08 |
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| CN104424910B (en) * | 2013-08-23 | 2017-06-16 | 晨星半导体股份有限公司 | Image processing apparatus, picture processing chip and image processing method |
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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 Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 Qinfengge D District 401, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |
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