CN102479493B - LCD converter and data display method based on the LCD converter - Google Patents
LCD converter and data display method based on the LCD converter Download PDFInfo
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Abstract
The invention is suitable for the multimedia technology field and provides a LCD converter and a data display method based on the LCD converter. The LCD converter is connected with multimedia equipment and third party display equipment respectively. The LCD converter comprises: a USB interface, multiple types of LCD output interfaces and a main controller, wherein the USB interface is connected with the multimedia equipment and is used to receive a data packet transmitted by the multimedia equipment; the multiple types of the LCD output interfaces are connected with the third party display equipment and is used to output display data to the third party display equipment; the main controller is connected with a USB interface and the multiple types of the LCD output interfaces and is used to receive the data packet sent by the multimedia equipment through the USB interface, analyze the data packet and carry out initialization configuration according to the type of the data packet or drive the third party display equipment or transmit the data packet to the third party display equipment through the multiple types of the LCD output interfaces so as to carry out data display. The display data of the multimedia equipment can be displayed through the display equipment with any sizes and hardware design complexity can be reduced.
Description
Technical field
The invention belongs to multimedia technology field, relate in particular to a kind of LCD converter and the data display method based on LCD converter.
Background technology
Personal portable multimedia equipment present a screen small-size screen often, generally be no more than 3 cun, and may also support the output of TV-out to TV, or What is more, on the system schema of personal portable multimedia equipment, directly increase a mini projector.
In existing multimedia equipment scheme field, the core parts of multimedia equipment--multimedia processor determines size and the peripheral other display equipment that can support of the display screen that this equipment supports, or peripheral system schema may be according to the video output characteristics of existing multimedia processing, increase other change-over circuits and reach the specific display device functions of support.
The support of obvious this display device is limited to, therefore manufacturer is in the time selecting multimedia processor, the strong product of selectivity as far as possible, therefore, force the multimedia processor design corporation must be by larger the size of the support LCD of the processor design of oneself, support that the kind of lcd screen is more, and leave abundant interface, to improve the competitive power of chip.But result is for the demand of non-characteristic scene, and multimedia processor is done more complicated and more complicated, cost rises.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of LCD converter, and the content-data by portable multimedia apparatus that being intended to solve prior art provides is shown to scheme that other display equipment adopts has increased the cost of hardware, and the problem of complicated operation.
The embodiment of the present invention is achieved in that a kind of LCD converter, and described LCD converter is connected with multimedia equipment and third party's display device respectively, and described LCD converter comprises:
USB interface, is connected with described multimedia equipment, and for receiving the packet of described multimedia equipment transmission, described packet comprises command packet and shows packet;
Eurypalynous LCD output interface, is connected with described third party's display device, for to described third party's display device output display data; And
Master controller, be connected with described USB interface and eurypalynous LCD output interface, for receive the packet that described multimedia equipment sends by described USB interface, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration;
Wherein, described master controller specifically comprises:
Verification unit, is connected with described USB interface, fault-tolerant for the packet receiving is carried out to verification;
Resolution unit, is connected with described verification unit, for according to the control word information of the packet receiving, packet is resolved;
Initial configuration unit, is connected with described resolution unit, and for being command packet when the packet that receive, and described command packet is while being LCD configuration parameter bag, carries out system initialization configuration, makes in treating duty;
Driver element, be connected with described resolution unit and eurypalynous LCD output interface, be command packet for working as the packet receiving, and when described command packet is target display devices packets of information, the third party's display device being connected with described eurypalynous LCD output interface is driven, make it in treating duty; And
At least one video memory, is connected with described resolution unit, for when the packet receiving is for showing when packet, preserves described resolution unit and resolves the demonstration data that obtain.
Another object of the embodiment of the present invention is to provide a kind of data display method based on LCD converter, and described method comprises the steps:
The packet that master controller sends by USB interface multimedia apparatus receiving, described packet comprises command packet and shows packet;
Master controller is resolved described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration.
Another object of the embodiment of the present invention is to provide a kind of data presentation system, and described system comprises multimedia equipment, LCD converter and third party's display device, wherein:
Multimedia equipment, is configured for the demonstration information to described third party's display device, and to described LCD converter output packet;
LCD converter, be connected with described multimedia equipment, for receiving the packet of described multimedia equipment output, resolve described packet simultaneously, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by eurypalynous LCD output interface; And
Third party's display device, is connected with described LCD converter, for showing the demonstration data of described LCD converter output;
Wherein, described LCD converter is fault-tolerant specifically for the packet receiving is carried out to verification, according to the control word information of the packet receiving, packet is resolved, when the packet receiving is command packet, and when described command packet is LCD configuration parameter bag, carry out system initialization configuration, make in treating duty; When the packet receiving is command packet, and described command packet is while being target display devices packets of information, and the third party's display device being connected with described eurypalynous LCD output interface is driven, and makes it in treating duty; When the packet receiving is that while showing packet, the demonstration data that parsing is obtained are kept in video memory.
The LCD converter that the embodiment of the present invention provides is connected with multimedia equipment and third party's display device respectively, described LCD converter comprises: USB interface is connected with described multimedia equipment, receive the packet of described multimedia equipment transmission, described packet comprises command packet and shows packet; Eurypalynous LCD output interface is connected with described third party's display device, to described third party's display device output display data; Master controller is connected with described USB interface and eurypalynous LCD output interface, receive by described USB interface the packet that described multimedia equipment sends, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration, realize the demonstration of the demonstration data of multimedia equipment being passed through to the display device of arbitrary dimension, reduced the challenge of hardware design.
Brief description of the drawings
Fig. 1 is the structured flowchart of the LCD converter that provides of the embodiment of the present invention;
Fig. 2 is the structured flowchart of the controller that provides of the embodiment of the present invention;
Fig. 3 is the realization flow figure that combination LCD converter that the embodiment of the present invention provides completes data display method;
Fig. 4 is the realization flow figure of the work disposal principle of the master controller that provides of the embodiment of the present invention;
Fig. 5 is the schematic diagram of the data presentation system that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The LCD converter that the embodiment of the present invention provides carries out the demonstration of arbitrary dimension to the view data of multimedia equipment, realize simply, has reduced multimedia equipment and realize the problem of the hardware cost that this object brings.
The object of the embodiment of the present invention is to provide a kind of LCD converter, and described LCD converter is connected with multimedia equipment and third party's display device respectively, and described LCD converter comprises:
USB interface, is connected with described multimedia equipment, and for receiving the packet of described multimedia equipment transmission, described packet comprises command packet and shows packet;
Eurypalynous LCD output interface, is connected with described third party's display device, for to described third party's display device output display data; And
Master controller, be connected with described USB interface and eurypalynous LCD output interface, for receive the packet that described multimedia equipment sends by described USB interface, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration;
Wherein, described master controller specifically comprises:
Verification unit, is connected with described USB interface, fault-tolerant for the packet receiving is carried out to verification;
Resolution unit, is connected with described verification unit, for according to the control word information of the packet receiving, packet is resolved;
Initial configuration unit, is connected with described resolution unit, and for being command packet when the packet that receive, and described command packet is while being LCD configuration parameter bag, carries out system initialization configuration, makes in treating duty;
Driver element, be connected with described resolution unit and eurypalynous LCD output interface, be command packet for working as the packet receiving, and when described command packet is target display devices packets of information, the third party's display device being connected with described eurypalynous LCD output interface is driven, make it in treating duty; And
At least one video memory, is connected with described resolution unit, for when the packet receiving is for showing when packet, preserves described resolution unit and resolves the demonstration data that obtain.
Another object of the embodiment of the present invention is to provide a kind of data display method based on LCD converter, and described method comprises the steps:
The packet that master controller sends by USB interface multimedia apparatus receiving, described packet comprises command packet and shows packet;
Master controller is resolved described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration.
Another object of the embodiment of the present invention is to provide a kind of data presentation system, and described system comprises multimedia equipment, LCD converter and third party's display device, wherein:
Multimedia equipment, is configured for the demonstration information to described third party's display device, and to described LCD converter output packet;
LCD converter, be connected with described multimedia equipment, for receiving the packet of described multimedia equipment output, resolve described packet simultaneously, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by eurypalynous LCD output interface; And
Third party's display device, is connected with described LCD converter, for showing the demonstration data of described LCD converter output;
Wherein, described LCD converter is fault-tolerant specifically for the packet receiving is carried out to verification, according to the control word information of the packet receiving, packet is resolved, when the packet receiving is command packet, and when described command packet is LCD configuration parameter bag, carry out system initialization configuration, make in treating duty; When the packet receiving is command packet, and described command packet is while being target display devices packets of information, and the third party's display device being connected with described eurypalynous LCD output interface is driven, and makes it in treating duty; When the packet receiving is that while showing packet, the demonstration data that parsing is obtained are kept in video memory.
The LCD converter that the embodiment of the present invention provides is connected with multimedia equipment and third party's display device respectively, described LCD converter comprises: USB interface is connected with described multimedia equipment, receive the packet of described multimedia equipment transmission, described packet comprises command packet and shows packet; Eurypalynous LCD output interface is connected with described third party's display device, to described third party's display device output display data; Master controller is connected with described USB interface and eurypalynous LCD output interface, receive by described USB interface the packet that described multimedia equipment sends, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration.
Fig. 1 shows the structured flowchart of the LCD converter that the embodiment of the present invention provides, and for convenience of explanation, has only provided the part relevant to the embodiment of the present invention in figure.
The LCD converter that the embodiment of the present invention provides is connected with multimedia equipment and third party's display device respectively, LCD converter receives the packet that described multimedia equipment sends, after treatment, outputing to described third party's display device shows, wherein, described third party's display device can comprise multiple, i.e. multiple third party's display devices.
Wherein, described LCD converter comprises:
USB interface is connected with described multimedia equipment, receives the packet of described multimedia equipment transmission, and described packet comprises command packet and shows packet; Eurypalynous LCD output interface is connected with described third party's display device, to described third party's display device output display data; Master controller is connected with described USB interface and eurypalynous LCD output interface, receive by described USB interface the packet that described multimedia equipment sends, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration.
In embodiments of the present invention, above-mentioned USB interface is used for transmitting large data, is a non real-time property, and when the LCD converter providing when the embodiment of the present invention is inserted into described multimedia equipment, multimedia equipment is identified and enumerated LCD converter.
As a specific embodiment of the present invention, as shown in Figure 2, verification unit is connected with described USB interface, the packet receiving is carried out to verification fault-tolerant; Resolution unit is connected with described verification unit, according to the control word information of the packet receiving, packet is resolved; When the packet receiving is command packet, and described command packet is while being LCD configuration parameter bag, and the initial configuration unit being connected with described resolution unit carries out system initialization configuration, makes in treating duty; When the packet receiving is command packet, and when described command packet is target display devices packets of information, the driver element being connected with described resolution unit and the eurypalynous LCD output interface pair third party's display device being connected with described eurypalynous LCD output interface drives, and makes it in treating duty; Certainly, in the embodiment of the present invention, master controller also at least comprises a video memory, and it is connected with described resolution unit, when the packet receiving is, while showing packet, to preserve described resolution unit and resolve the demonstration data that obtain.
Wherein, mentioned order packet comprises multiple situation, specifically comprises LCD configuration parameter bag and target display devices information etc.
As an alternative embodiment of the invention, when the display size size of the image that the demonstration packet receiving when described USB interface comprises and not of uniform size the causing of display size of described third party's display device, convergent-divergent control module carries out image scaling to the demonstration packet receiving, make it consistent with the display size of described third party's display device, and, by the demonstration deposit data after zoom operations, in the video memory different from the described demonstration packet receiving, the sequential logic of being controlled by output is ceaselessly to third party's display device brush data; Wherein:
The target display devices information that LCD converter need to obtain from multimedia equipment at least comprises type, resolution and the display mode (information such as frame per second, field, staggered scanning and standard) of third party's display device (target display devices); The expansion of the target display devices information that LCD converter need to obtain from multimedia equipment comprises input data fields mark, input data line mark, the positional information supplementary notes of demonstration data and the resolution of input data etc. to output, be that packet comprises a control word, the type that has this packet is described in this control, when packet is that while showing packet, this control word also comprises the information of these demonstration data at the display position of third party's display device.
For saving the needed bandwidth of data volume of transmitting between multimedia equipment and LCD breakout box, and take into account the fault-tolerance of USB transmission data, each transmission packet between the two is rationally cut into the parcel of preset length, and each parcel data are added this segment data relatively and positional information and the fault-tolerant verification of simple data of input picture.
In embodiments of the present invention, eurypalynous LCD output interface includes but not limited to AV interface, S terminal, VGA interface, DVI interface and HDMI interface, i.e. the integrated polytype interface of LCD converter, in the time that one of them interface is in running order, other interfaces are in dormant state, wherein:
Display device mainly contains LCD TV, CRT monitor, CRT TV and projector, and the data after completing convergent-divergent of these display devices are filled up output video memory, and the sequential logic of being controlled by output is not stopped to obtain and shown that data are to brush screen on interface.Main display interface device is AV interface (being the tone frequency channel wire of red white left and right acoustic channels and yellow video line), S terminal, VGA interface (the main interface of projector and computer monitor), DVI interface (in order to replace the digital transmission computer monitor interface of VGA) and HDMI interface (digital transmission of audio, the high-clear display interface of video).
The eurypalynous LCD output interface of LCD converter, be actually by the sequential logic module of multiple dissimilar interfaces and form, each module is supported respectively a kind of interface sequence, the data interface module of every type can also be selected the testing circuit whether additional the corresponding interface is communicated with, the power consumption of reducing unnecessary circuit for LCD converter simultaneously.
In embodiments of the present invention, due to not charged of this province of LCD converter, therefore, in the time that it is not communicated with by USB mouth with multimedia equipment, this province of converter is completely in power-down state.In the time that the USB of breakout box mouth is inserted into multimedia equipment, is undertaken converter to power by USB mouth, and activate the image data transmission interface logic of converter.
The combination LCD converter that Fig. 3 shows the embodiment of the present invention to be provided completes the realization flow of data display method, and its concrete step is as described below:
In step S301, the packet that master controller sends by USB interface multimedia apparatus receiving, described packet comprises command packet and shows packet.
In embodiments of the present invention, for the packet receiving, judge the type of packet according to the control word of its packet.
In step S302, master controller is resolved described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration.
This step has provided the groundwork principle of master controller, followingly provides concrete operation steps:
As an alternative embodiment of the invention, Fig. 4 shows the realization flow of the work disposal principle of the master controller that the embodiment of the present invention provides, and its concrete step is as described below:
In step S401, it is fault-tolerant that verification unit is carried out verification to the packet receiving.
In embodiments of the present invention, verification unit is carried out fault-tolerant verification to packet, if made mistakes, directly abandons.
In step S402, resolution unit, according to the control word information of the packet receiving, is resolved packet.
In embodiments of the present invention, the packet that multimedia equipment is transferred to LCD converter all comprises a control word, this control word is in order to identify the type of this packet, the type of packet comprises command packet and shows packet, wherein, command packet comprises LCD converter initial configuration data, the driver of third party's display device and the target display devices information of third party's display device.
In step S403, when the packet receiving is command packet, and described command packet is while being LCD configuration parameter bag, and initial configuration unit carries out system initialization configuration, makes in treating duty.
In embodiments of the present invention, LCD breakout box can not self-adaptation identification external equipment.Therefore in the data of USB interface transmission, the requisite USB that configuration order need to be dissolved into transmits in data.
Wherein, LCD converter itself is a passive receiving equipment and static conversion equipment, therefore need to be by means of the processor of multimedia equipment, by configuration order parameter, these configuration order parameters are passed to LCD converter with data mode, therefore the packet that multimedia equipment sends to LCD converter by USB interface is containing control word, and it is order bag or demonstration packet that this control word agreement is distinguished the packet receiving, and sets different data and command address space.
In step S404, when the packet receiving is command packet, and when described command packet is target display devices packets of information, the driver element pair third party's display device being connected with described eurypalynous LCD output interface drives, and makes it in treating duty.
In step S405, when the packet receiving is, while showing packet, described resolution unit to be resolved to the demonstration data that obtain and be kept in video memory.
In embodiments of the present invention, the demonstration data of this preservation can be the data that do not need image size dimension convergent-divergent, also can be to carry out image size dimension convergent-divergent data afterwards, certainly, as one embodiment of the present of invention, also can be by the demonstration deposit data of carrying out zoom operations to the second video memory.
In embodiments of the present invention, the realization that demonstration data are outputed to third party's display device by LCD converter can be understood as:
A) internal clock source PLL and output clock produce circuit;
B) the demonstration data buffering of a packet of reception;
C) data are filled in inner video memory logic;
D) at least can hold the complete maximum input size first of a line and show data buffering;
E) at least can hold complete maximum Output Size the second video memory of a frame;
F) be input to output conversion scaling logic;
G) output to the various interface sequential circuit of terminal.
Wherein, the PLL of LCD converter produces internal logic clock and outside output clock, depends under application model the requirement of the size of input image size and outlet terminal brush screen.In the time that the packet receiving by USB is judged as demonstration data, USB is received to data buffering by replacing with showing packet buffering, allow the transmission of usb data be unlikely to be interrupted by follow-up data manipulation.
As an alternative embodiment of the invention, Fig. 5 shows the schematic diagram of the data presentation system that the embodiment of the present invention provides, this system comprises multimedia equipment, LCD converter and third party's display device, wherein, multimedia equipment is configured the demonstration information to described third party's display device, and to described LCD converter output packet; LCD converter is connected with described multimedia equipment, receive the packet of described multimedia equipment output, resolve described packet simultaneously, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by eurypalynous LCD output interface; Third party's display device is connected with described LCD converter, shows the demonstration data of described LCD converter output, and wherein, the data that multimedia equipment display shows are identical with the data that described third party's display device shows, also can be different.
Wherein, in conjunction with Fig. 5, the display screen of supposing many individual device shows it is displayed scene 1, third party's display device (S terminal, RGB screen and MPU screen etc.) also can show this displayed scene 1, can certainly show other displayed scenes (example scene 2,3 etc.) as shown in FIG., at this not in order to limit the present invention.
As a specific embodiment of the present invention, suppose that current application scene is:
1. multimedia equipment is mobile phone, has the MPU screen of 320x240;
2. multimedia equipment comprises a mini USB mouth;
3.LCD breakout box has comprised one end mini USB joint, a LCD switch main body, a VGA output interface, a HDMI output interface, a DVI interface;
4. user will, by the video of playing on mobile phone, output in the LCD TV of 1280x720DVI interface.
Due to mobile phone as multimedia equipment this as product early, can not support large-size screen monitors to show, also, without any other switching interface, therefore, USB drivings that need to increase LCD converter on user's mobile phone waits relative program.
Install after the USB driving of LCD breakout box, the USB interface of plugging LCD breakout box on mobile phone, in the situation of enumerating driving at USB, LCD breakout box is identified, and enters the menu setting of LCD breakout box.
The application program of the LCD converter by multimedia equipment, guiding user is provided with the size of the video memory of current multimedia equipment, the data such as demonstration size, the interface type of target indicator of target indicator.
This application program is obtained current video memory regional address by calling system function, and video memory upgrades data interval, will show that according to agreement data and order data packing send to USB interface.
The master control logic of the master controller of LCD converter, under adaptive model, the highest pll clock of initialization system, and distribute system clock to each steering logic (controlling the dissimilar interface in each road), after system clock is stable, just really start to show the conversion work of data.
The master control logic of LCD converter, first keeps in data USB buffer zone, and the up-to-date data of receiving are carried out to determination and analysis according to data layout, the renewal of the change of sense command in real time and demonstration data.
The master controller of LCD converter, according to command configuration, detect show the image of data actual effectively for the size of 640x480 (multimedia equipment by the carrying out of this picture size convergent-divergent, deliver to again multimedia equipment demonstration and get rid of demonstration), therefore the region of the opening of the first video memory is a view data of 640 width.Along with new data are come in, the master control of converter is to showing that data are amplified to 1280x720, and continuous-flow type is placed in the second video memory, and the space that the second video memory is opened up is just in time 1280x720x3RGB tri-color pixel spaces.
DVI logic glue constantly obtains demonstration data from the second video memory, will show that according to the interface of DVI data transmit in LCD TV according to rational sequential, and now user can see complete play content on TV.
Above are only a specific embodiment of the present invention, at this not in order to limit the present invention.
The LCD converter that the embodiment of the present invention provides is connected with multimedia equipment and third party's display device respectively, described LCD converter comprises: USB interface is connected with described multimedia equipment, receive the packet of described multimedia equipment transmission, described packet comprises command packet and shows packet; Eurypalynous LCD output interface is connected with described third party's display device, to described third party's display device output display data; Master controller is connected with described USB interface and eurypalynous LCD output interface, receive by described USB interface the packet that described multimedia equipment sends, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration, realize the demonstration of the demonstration data of multimedia equipment being passed through to the display device of arbitrary dimension, reduced the challenge of hardware design.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a LCD converter, described LCD converter is connected with multimedia equipment and third party's display device respectively, and described LCD converter comprises:
USB interface, is connected with described multimedia equipment, and for receiving the packet of described multimedia equipment transmission, described packet comprises command packet and shows packet;
Eurypalynous LCD output interface, is connected with described third party's display device, for to described third party's display device output display data; And
Master controller, be connected with described USB interface and eurypalynous LCD output interface, for receive the packet that described multimedia equipment sends by described USB interface, resolve described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration;
It is characterized in that, described master controller specifically comprises:
Verification unit, is connected with described USB interface, fault-tolerant for the packet receiving is carried out to verification;
Resolution unit, is connected with described verification unit, for according to the control word information of the packet receiving, packet is resolved;
Initial configuration unit, is connected with described resolution unit, and for being command packet when the packet that receive, and described command packet is while being LCD configuration parameter bag, carries out system initialization configuration, makes in treating duty;
Driver element, be connected with described resolution unit and eurypalynous LCD output interface, be command packet for working as the packet receiving, and when described command packet is target display devices packets of information, the third party's display device being connected with described eurypalynous LCD output interface is driven, make it in treating duty; And
At least one video memory, is connected with described resolution unit, for when the packet receiving is for showing when packet, preserves described resolution unit and resolves the demonstration data that obtain.
2. LCD converter as claimed in claim 1, is characterized in that, described master controller also comprises:
Convergent-divergent control module, when the display size size of the image comprising for the demonstration packet receiving when described USB interface and not of uniform size the causing of display size of described third party's display device, the demonstration packet receiving is carried out to image scaling, make it consistent with the display size of described third party's display device.
3. LCD converter as claimed in claim 1, is characterized in that, described eurypalynous LCD output interface comprises AV interface, S terminal, VGA interface, DVI interface and HDMI interface.
4. the data display method based on LCD converter claimed in claim 1, is characterized in that, described method comprises the steps:
The packet that master controller sends by USB interface multimedia apparatus receiving, described packet comprises command packet and shows packet;
Master controller is resolved described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, carry out data demonstration.
5. method as claimed in claim 4, it is characterized in that, described master controller is resolved described packet, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by described eurypalynous LCD output interface, the step of carrying out data demonstration specifically comprises the steps:
It is fault-tolerant that verification unit is carried out verification to the packet receiving;
Resolution unit, according to the control word information of the packet receiving, is resolved packet;
When the packet receiving is command packet, and described command packet is while being LCD configuration parameter bag, and initial configuration unit carries out system initialization configuration, makes in treating duty;
When the packet receiving is command packet, and described command packet is while being target display devices packets of information, and the driver element pair third party's display device being connected with described eurypalynous LCD output interface drives, and makes it in treating duty;
When the packet receiving is, while showing packet, described resolution unit to be resolved to the demonstration data that obtain and be kept in video memory.
6. method as claimed in claim 4, is characterized in that, described method also comprises the steps:
When the display size size of the image that the demonstration packet receiving when described USB interface comprises and not of uniform size the causing of display size of described third party's display device, convergent-divergent control module carries out image scaling to the demonstration packet receiving, and makes it consistent with the display size of described third party's display device.
7. a data presentation system, described system comprises multimedia equipment, LCD converter and third party's display device, wherein:
Multimedia equipment, is configured for the demonstration information to described third party's display device, and to described LCD converter output packet;
LCD converter, be connected with described multimedia equipment, for receiving the packet of described multimedia equipment output, resolve described packet simultaneously, according to the type of described packet, carry out initial configuration, or drive described third party's display device, or described packet is transferred to described third party's display device by eurypalynous LCD output interface; And
Third party's display device, is connected with described LCD converter, for showing the demonstration data of described LCD converter output;
It is characterized in that, described LCD converter is fault-tolerant specifically for the packet receiving is carried out to verification, according to the control word information of the packet receiving, packet is resolved, when the packet receiving is command packet, and when described command packet is LCD configuration parameter bag, carry out system initialization configuration, make in treating duty; When the packet receiving is command packet, and described command packet is while being target display devices packets of information, and the third party's display device being connected with described eurypalynous LCD output interface is driven, and makes it in treating duty; When the packet receiving is that while showing packet, the demonstration data that parsing is obtained are kept in video memory.
8. system as claimed in claim 7, is characterized in that, the data that described multimedia equipment display shows are identical with the data that described third party's display device shows.
9. system as claimed in claim 7, is characterized in that, the data that described multimedia equipment display shows are different from the data that described third party's display device shows.
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Citations (3)
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|---|---|---|---|---|
| CN1378133A (en) * | 2001-04-04 | 2002-11-06 | 旭丽股份有限公司 | Display data adaptor |
| CN101662538A (en) * | 2009-08-27 | 2010-03-03 | 董晨勇 | Method and system for realizing mobile phone projection |
| CN201897946U (en) * | 2010-11-30 | 2011-07-13 | 安凯(广州)微电子技术有限公司 | LCD converter and data display system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1978692B1 (en) * | 2004-06-04 | 2011-07-27 | QUALCOMM Incorporated | High data rate interface apparatus and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1378133A (en) * | 2001-04-04 | 2002-11-06 | 旭丽股份有限公司 | Display data adaptor |
| CN101662538A (en) * | 2009-08-27 | 2010-03-03 | 董晨勇 | Method and system for realizing mobile phone projection |
| CN201897946U (en) * | 2010-11-30 | 2011-07-13 | 安凯(广州)微电子技术有限公司 | LCD converter and data display system |
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