CN208400468U - A kind of miniature display system based on mobile industry processor interface - Google Patents
A kind of miniature display system based on mobile industry processor interface Download PDFInfo
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Abstract
The utility model belongs to field of display technology, provides a kind of miniature display system based on mobile industry processor interface.In the present invention, by using including preset interface data source, fpga chip, the miniature display system of signal protection module and miniscope, allow fpga chip that the data that format in the data information of mobile industry processor interface is rgb color space are converted to the data that format is YCBCR color space, and it controls miniscope and the data that the format is YCBCR color space is shown, and then it realizes the protocol analysis of MIPI data, color space conversion and the control of miniscope operation are fully integrated into fpga chip and handle, reduce delay of the data between multiple chips in transmission path, so that miniature display system provided by the utility model is suitable for the place of strong real-time and high resolution, and it reduces costs, it is existing to solve Display there is a problem of it is expensive and processing data efficiency it is low.
Description
Technical field
The utility model belongs to field of display technology more particularly to a kind of miniature aobvious based on mobile industry processor interface
Show system.
Background technique
Mobile industry processor interface (Mobile Industry Processor Interface, MIPI) be by ARM,
One of the companies such as Nokia, ST and TI establishment is intended to camera, display screen and the radio frequency/base band etc. inside mobile device
The alliance that interface is standardized is capable of providing higher message transmission rate and reduces design while cost is reduced
Complexity is widely used in consumer field.
In recent years, with the appearance of the high-tech products such as head-mounted display and virtual reality glasses, miniscope is fast
Speed comes into people's lives.It is existing miniature in order to obtain preferably display details and more convenient and fast color component processing mode
Display mostly uses greatly YCBCR color space, but the data of MIPI video source are usually rgb color space, so data must
It could must correctly be shown by the conversion of color space.
Currently, in order to which data are converted to YCBCR color space form by rgb color space form, it is existing miniature aobvious
Show that device mainly uses MIPI bridging chip+digital signal processing chip (Digital Signal Processing, DSP)+miniature
The mode of controller unit (Micro controller Unit, MCU), working principle specifically: data source first passes around
It is resolvable to rgb format data after MIPI bridging chip, rgb format data input dsp chip is then subjected to color space and is turned
It changes, the data-driven display finally completed by MCU reading process is shown.However, due to MIPI bridging chip and DSP core
The reasons such as higher cost and the MCU control circuit complexity of piece, real-time difference, thus existing miniscope it is expensive and
Data-handling efficiency is low.
Therefore, it is necessary to a kind of technical solution is provided, to solve the above technical problems.
Utility model content
The miniature display system based on mobile industry processor interface that the purpose of this utility model is to provide a kind of, it is intended to
Solving the problems, such as existing display, there are expensive and data-handling efficiency is low.
The utility model is realized in this way a kind of miniature display system based on mobile industry processor interface, described
Miniature display system includes:
Preset interface data source, for providing the data information of mobile industry processor interface；Wherein, the data information
It is the data of rgb color space including format；
Fpga chip is connect with the preset interface data source, the number sent for receiving the preset interface data source
It is believed that breath, and the data that format in the data information is rgb color space are converted into the number that format is YCBCR color space
According to；
Signal protection module is connect with the fpga chip and the preset interface data source, described pre- for ensuring
If the integrality of data information signal when being input to the fpga chip of interface data source output；
Miniscope is connect with the fpga chip, for being to the format under the action of fpga chip
The data of YCBCR color space are shown.
In the present invention, by using including preset interface data source, fpga chip, signal protection module and micro-
The miniature display system based on mobile industry processor interface of escope handles fpga chip by mobile industry
Format is that the data of rgb color space are converted to format and are the data of YCBCR color space, and control in the data information of device interface
Miniscope processed shows the data that the format is YCBCR color space, and then realizes the agreement of MIPI data
Parsing, color space conversion and the control of miniscope operation are fully integrated into fpga chip and handle, and reduce data and exist
Delay between multiple chips in transmission path, so that miniature display system provided by the utility model is suitable for strong real-time
And the place of high resolution, and reduce costs, to solve existing display, there are expensive and data processings
The problem of low efficiency.
Detailed description of the invention
Fig. 1 is the miniature display system based on mobile industry processor interface provided by an embodiment of the present invention
Modular structure schematic diagram；
Fig. 2 is the miniature display system based on mobile industry processor interface provided by an embodiment of the present invention
Electrical block diagram.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The realization of the utility model is described in detail below in conjunction with specific attached drawing:
Fig. 1 shows the miniature display system based on mobile industry processor interface provided by an embodiment of the present invention
The modular structure of system, for ease of description, only the parts related to this embodiment are shown, and details are as follows:
As shown in Figure 1, the miniature display system based on mobile industry processor interface provided by the utility model embodiment
System 10 includes: preset interface data source 101, fpga chip 102, signal protection module 103 and miniscope 104.
Specifically, preset interface data source 101, for providing the data information of mobile industry processor interface；Wherein, number
It is believed that breath includes the data that format is rgb color space.
Wherein, in the utility model embodiment, preset interface data source 101 can be using with mobile Industry Processor
The chip or equipment of interface (Mobile Industry Processor Interface, MIPI) are realized, such as the present embodiment
The middle data source chip using model MT6582H realizes that the data source chip of the MT6582H is researched and produced by Lian Fake
A MIPI interface chip, concrete operating principle can refer to the prior art, and details are not described herein again.
In addition, it is RGB color that the data information of MIPI interface provided by the preset interface source data 101 includes format incessantly
The data of color space further include that miniscope 104 required clock signal, field sync signal and row in display synchronize
The information such as signal are herein only explained in detail the data of rgb color space, remaining signal and existing display equipment are aobvious
Working principle when showing is identical, and details are not described herein again.
Specifically, in the utility model embodiment, in the data information for the MIPI interface that preset interface data source 101 provides
The format for being included is that the data of rgb color space refer to that miniscope 104 is to display and format is rgb color
The data in space, and the specific explanations of rgb color space, and existing identical, details are not described herein again.
Further, fpga chip 102 are connect with preset interface data source 101, for receiving preset interface data source
101 data informations sent, and it is YCBCR color that the data that format in data information is rgb color space, which are converted to format,
The data in space.
It wherein, in embodiments of the present invention, can only be empty with YCBCR color since miniscope 104 is when showing data
Between the format of color space shown that therefore, fpga chip 102 is in the data for receiving the transmission of preset interface data source 101
When information, the data that format in the data information is rgb color space are converted into the data that format is YCBCR color space,
In order to which the data that miniscope 104 sends preset interface data source 101 are shown.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, fpga chip 102 includes agreement solution
Analyse module 1021, color space conversion module 1022 and display control module 1023.
Specifically, protocol resolution module 1021, connect with preset interface data source 101, for according to mobile industry processing
The data information that the protocol analysis preset interface data source 101 of device interface provides.
Wherein, in the utility model embodiment, the major function of the protocol resolution module 1021 is by MIPI data source
The serial data of transmission is parsed into parallel data and is sent to color space conversion module 1022.Specific implementation is: using first
Differential signal input-buffer inside fpga chip 102 caches the reception data of clock lane and data channel；Then
Serioparallel exchange, caching and registration process are carried out to all data channel according to the data frame format of MIPI agreement defined；Finally
Color space conversion module 1022 is sent by parallel data and corresponding clock signal.
Color space conversion module 1022 is connect with protocol resolution module 1021, for the data after being parsed
Format is that the data of rgb color space are converted to the data that format is YCBCR color space in information.
Wherein, in the utility model embodiment, the input terminal of color space conversion module 1022 is directly and protocol analysis
Module 1021 connects, and the major function of the color space conversion module 1022 is the RGB color for inputting protocol resolution module 1021
The data of color space are converted into YCBCR color space, to match the data entry requirement of miniscope 104.
It should be noted that in the utility model embodiment, specifically when conversion, since the calculating of color space conversion is public
Formula includes that color matches specific factor, therefore color space conversion will be related to floating-point operation, but what fpga chip 102 was good at is whole
Type digital operation is converted floating-point operation to using the method that equation converts to preferably play the advantage of fpga chip 102
Then calculated result is intercepted corresponding data bit width i.e. according to the principle to round up in calculated result by integer digital operation
It can, wherein integer digital operation realizes that concrete principle can refer to existing skill using the DSP resource inside fpga chip 102
Art, details are not described herein again.
Display control module 1023 is connect, for controlling with color space conversion module 1022 and miniscope 104
Miniscope 104 processed shows the data that format is YCBCR color space.
Wherein, in the utility model embodiment, the input terminal of display control module 1023 directly turns with color space
The output end connection of block 1022 is changed the mold, the major function of the display control module 1023 is initialization miniscope 104, and
It is sent to miniscope 104 according to the interface of miniscope 104 and the corresponding control signal of timing requirements generation and is driven
Display.
When it is implemented, the initialization of miniscope 104 is using IIC, (Inter-Integrated Circuit is integrated
Circuit bus) agreement, it is directly connect with the configuration port of miniscope 104 by fpga chip 102, inside fpga chip 102
It generates initialization directive and completes relevant operation, exiting including sleep pattern, the selection of screen resolution, the control of frame per second and figure
As the correction etc. of information.The driving of miniscope 104 by fpga chip 102 according to the port signal of miniscope 104 and
Timing requirements, inside generate corresponding field synchronization, line synchronising signal and read the valid data of caching and complete the driving of display
Control.
Further, the correlation module working principle based on above-mentioned fpga chip 102, the utility model embodiment are provided
Miniature display system 10 in the specific implementation, can be used model GW1N-LV4LQ144C6/I5 in the prior art chip make
For the hardware circuit of fpga chip 102.The GW1N-LV4LQ144C6/I5 chip is substantially a kind of programmable digital hardware
Circuit has the characteristics that data-interface is more, computational efficiency is high, transmission delay is small, and can be same in a hardware circuit
Protocol analysis, color space conversion and the control of the miniscope operation of Shi Shixian MIPI data；It should be noted that at this
In utility model embodiment, the specific works of the fpga chip 102 in miniature display system 10 provided by the utility model are former
Reason can refer to the working principle of GW1N-LV4LQ144C6/I5 chip, and details are not described herein again.
In the present embodiment, due to the protocol analysis of MIPI data, color space conversion and the control of miniscope behaviour
Protocol analysis, color space conversion and the control of the miniscope operation of MIPI data can be achieved at the same time, therefore can be used
Fpga chip 102 substitutes original MIPI bridging chip, dsp chip and MCU chip, and which reduce data between multiple chips
Delay in transmission path is suitably applied the place of strong real-time, high resolution, and the major function mould of the utility model
Block all realizes there is preferable portability, convenient for the maintenance and modification in later period by programming to FPGA；In addition, can be in letter
Higher message transmission rate is realized while changing product structure, and can substantially reduce the cost of existing microcontroller.
Further, signal protection module 103 connect with FPGA102 chip and preset interface data source 101, is used for
Ensure the integrality for data information signal when being input to fpga chip 102 that preset interface data source 101 exports.
In the present invention, it is transmitted by data between aforementioned preset interface data source 101 and fpga chip 102 specific
Characteristic is it is found that preset interface data source 101 and fpga chip 102 are logical comprising clock lane and data when carrying out data transmission
Road, wherein clock lane and data channel are transmitted in the form of differential pair, anti-dry in communication process to enhance
Immunity, and clock lane number is fixed as one, and data channel number can increase to most four according to the size of bandwidth.
Further, each transmission channel is divided into low-power consumption (Low Power, LP) and high speed (High Speed, HS) two
Kind mode.Wherein, HS mode is high-speed mode, can be used to transmit field synchronization, row synchronization and valid data；And LP mode is low
Power consumption mode, the order and status information being used between transmission device.However, although the utility model divides original channel
For two kinds of transmission channels of LP and HS, to send data to fpga chip 102, but since LP is connected with two kinds of transmission people having a common goal of HS
The different data reception module in 102 inside of fpga chip, and input voltage required for different data reception modules is different, because
This, data lack in transmission process in order to prevent, complete when needing to keep signal transmission using signal protection module 103
Whole property.
Further, as one preferred embodiment of the utility model, as shown in Fig. 2, signal protection module 103 includes the
One resistance R1 and second resistance R2.
Wherein, the first end of first resistor R1 is connect with preset interface data source 101, the second end of first resistor R1 with
Fpga chip 102 connects；The first end of second resistance R2 is connect with preset interface data source 101, the second end of second resistance R2
It is connect with fpga chip 102.
Specifically, the low-power consumption of the second end of first resistor R1 and the second end of second resistance R2 with fpga chip 102
Passway LP connection.When it is implemented, the LP (Low Power, low-power consumption) and HS (High Speed, high speed) of MIPI data source
Channel is connected respectively to the different data block of fpga chip 102 (bank), and since the transmission rate of LP mode is 10Mbit/s,
Voltage swing is 0~1.2V, and the transmission rate of HS mode is 1Gbit/s, and voltage swing is 100~300mV, thus for LP and
The different voltages amplitude of oscillation required for the channel HS, respectively outside data receiving terminal adjunction build-out resistor R1 and R2 to guarantee signal
Integrality.
Miniscope 104 is connect with fpga chip 102, for being to format under the action of fpga chip 102
The data of YCBCR color space are shown.
Wherein, in the utility model embodiment, miniscope 104 is connect by a YCBCR with 720p resolution ratio
The display module of mouth screen FL1304 realizes that input terminal is directly connect with fpga chip 102, inside fpga chip 102
Display control module 1023 carries out initial configuration to it, and it is synchronous with row etc. for it to provide clock, valid data, field synchronization
Driving signal.
In the present invention, by using including preset interface data source, fpga chip, signal protection module and micro-
The miniature display system based on mobile industry processor interface of escope handles fpga chip by mobile industry
Format is that the data of rgb color space are converted to format and are the data of YCBCR color space, and control in the data information of device interface
Miniscope processed shows the data that the format is YCBCR color space, and then realizes the agreement of MIPI data
Parsing, color space conversion and the control of miniscope operation are fully integrated into fpga chip and handle, and reduce data and exist
Delay between multiple chips in transmission path, so that miniature display system provided by the utility model is suitable for strong real-time
And the place of high resolution, and reduce costs, to solve existing display, there are expensive and data processings
The problem of low efficiency.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of miniature display system based on mobile industry processor interface, which is characterized in that the miniature display system packet
It includes:
Preset interface data source, for providing the data information of mobile industry processor interface；Wherein, the data information includes
Format is the data of rgb color space；
Fpga chip is connect with the preset interface data source, the data letter sent for receiving the preset interface data source
Breath, and the data that format in the data information is rgb color space are converted into the data that format is YCBCR color space；
Signal protection module is connect with the fpga chip and the preset interface data source, for ensuring that described preset connects
The integrality of data information signal when being input to the fpga chip of mouth data source output；
Miniscope is connect with the fpga chip, for being YCBCR to the format under the action of fpga chip
The data of color space are shown.
2. miniature display system according to claim 1, which is characterized in that the signal protection module includes first resistor
And second resistance；
The first end of the first resistor is connect with the preset interface data source, the second end of the first resistor with it is described
Fpga chip connection；The first end of the second resistance is connect with the preset interface data source, and the second of the second resistance
End is connect with the fpga chip.
3. miniature display system according to claim 2, which is characterized in that the second end of the first resistor and described
The second end of two resistance is connect with the low-power consumption passway of the fpga chip.
4. miniature display system according to any one of claims 1 to 3, which is characterized in that the fpga chip includes:
Protocol resolution module is connect with the preset interface data source, for the agreement solution according to mobile industry processor interface
Analyse the data information that the preset interface data source provides；
Color space conversion module is connect with the protocol resolution module, for lattice in the data information after being parsed
Formula is the data that the data of rgb color space are converted to that format is YCBCR color space；
Display control module is connect with the color space conversion module and the miniscope, described for controlling
Miniscope shows the data that the format is YCBCR color space.
5. miniature display system according to claim 4, which is characterized in that the model GW1N- of the fpga chip
LV4LQ144C6/I5。
6. miniature display system according to claim 1, which is characterized in that the preset interface data source is with movement
The chip or equipment of Industry Processor Interface.
7. miniature display system according to claim 6, which is characterized in that the preset interface data source is model
The data source chip of MT6582H.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111400218A (en) * | 2020-03-10 | 2020-07-10 | 武汉精立电子技术有限公司 | MIPI high-speed signal generation method and system compatible with multiple data formats |
| WO2020239109A1 (en) * | 2019-05-29 | 2020-12-03 | 深圳市紫光同创电子有限公司 | Mipi d-phy transmission circuit and device |
| CN113626360A (en) * | 2021-10-12 | 2021-11-09 | 南京初芯集成电路有限公司 | Low-speed MIPI observation type SOC chip and operation method thereof |
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2018
- 2018-07-27 CN CN201821209571.6U patent/CN208400468U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020239109A1 (en) * | 2019-05-29 | 2020-12-03 | 深圳市紫光同创电子有限公司 | Mipi d-phy transmission circuit and device |
| KR20200138275A (en) * | 2019-05-29 | 2020-12-09 | 선전 판고 마이크로시스템즈 컴퍼니.,리미티드. | MIPI D-PHY sending circuit and equipment |
| KR102427868B1 (en) | 2019-05-29 | 2022-07-29 | 선전 판고 마이크로시스템즈 컴퍼니.,리미티드. | MIPI D-PHY sending circuit and device |
| CN111400218A (en) * | 2020-03-10 | 2020-07-10 | 武汉精立电子技术有限公司 | MIPI high-speed signal generation method and system compatible with multiple data formats |
| CN111400218B (en) * | 2020-03-10 | 2021-08-27 | 武汉精立电子技术有限公司 | MIPI high-speed signal generation method and system compatible with multiple data formats |
| CN113626360A (en) * | 2021-10-12 | 2021-11-09 | 南京初芯集成电路有限公司 | Low-speed MIPI observation type SOC chip and operation method thereof |
| CN113626360B (en) * | 2021-10-12 | 2021-12-17 | 南京初芯集成电路有限公司 | Low-speed MIPI observation type SOC chip and operation method thereof |
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