CN101312013B - LCD module group demonstration system - Google Patents
LCD module group demonstration system Download PDFInfo
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- CN101312013B CN101312013B CN2007100745245A CN200710074524A CN101312013B CN 101312013 B CN101312013 B CN 101312013B CN 2007100745245 A CN2007100745245 A CN 2007100745245A CN 200710074524 A CN200710074524 A CN 200710074524A CN 101312013 B CN101312013 B CN 101312013B
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- liquid crystal
- crystal display
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Abstract
The invention discloses a demonstration system of an LCD module, which consists of a motherboard and a daughter board. The motherboard is provided with a processing module, a memory module and a first general-purpose interface, wherein, the processing module is respectively connected with the memory module and the first general-purpose interface; the daughter board is provided with an LCD module and a second general-purpose interface adapted with the first general-purpose interface; the processing module takes out wait-to-display data from the memory module and delivers to the LCD module for display through the first general-purpose interface and the second general-purpose interface in sequence. The invention divides the demonstration system into the all-purpose motherboard and the daughter board of different LCD drive types, thus having excellent commonality. If a new LCD drive type needs adding, only a daughter board is needed, thus having great expandability.
Description
Technical field
The present invention relates to a kind of liquid crystal display module demo system of (LCD Module is called for short LCM).
Background technology
The demonstration of existing liquid crystal display module (DEMO) system generally all is the liquid crystal display module that a circuit board is provided with common single-chip microcomputer, exented memory (RAM) and certain fixed type.Picture to be shown is arranged in the RAM, and common single-chip microcomputer reads the picture to be shown in the internal memory and shows to demonstrate to the user on the liquid crystal display module.Therefore, existing demo system all needs respectively to be provided with the single-chip microcomputer that matches with it and internal memory to form the demo system of specific liquid crystal display module corresponding to dissimilar liquid crystal display modules, this makes that the demo system of existing liquid crystal display module all is relatively-stationary, and versatility is not strong.Simultaneously existing demo system is many controls the chip for driving of LCM with common 51 single-chip microcomputers, and the RAM capacity of its expansion is very little, and the burned picture number of energy is few.And because common single-chip microcomputer speed is too slow, the speed that causes image data is write the LCM chip for driving is slow, and spended time is long; The programming of common in addition 51 single-chip microcomputers is also cumbersome; More than these defectives brought inconvenience for user's use.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of highly versatile, the demo system that expanded function is good.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of demo system of liquid crystal display module comprises motherboard and daughter board; Described motherboard is provided with processing module, memory module and first general-purpose interface, and described processing module links to each other respectively with memory module, first general-purpose interface; Described daughter board is provided with the interconnective liquid crystal display module and second general-purpose interface, and described second general-purpose interface and first general-purpose interface are suitable; Described processing module is taken out from memory module and is treated demonstration data and send the liquid crystal display module to by first general-purpose interface and second general-purpose interface successively to show.
Preferably, described processing module is a high-speed microprocessor.
Described memory module is NAND (Sheffer stroke gate type) flash memory.
Also be provided with the user's operational module that links to each other with second general-purpose interface on the described daughter board, described user's operational module will send processing module to corresponding to the response signal of user's operation by second general-purpose interface and first general-purpose interface successively, and processing module produces corresponding control signal and sends described liquid crystal display module to by first general-purpose interface and second general-purpose interface successively according to response signal.
Also be provided with on the described motherboard and be used to receive the serial ports for the treatment of demonstration data, described serial ports links to each other with processing module.
Also be provided with on the described motherboard and be used to download the software and the initialize routine of described demo system and debug the software of described demo system and the JTAG mouth of initialize routine, described JTAG mouth links to each other with processing module.
With respect to prior art, the invention has the beneficial effects as follows:
The present invention is divided into demo system the daughter board of general motherboard and corresponding different liquid crystal display mode set types, thereby have well universal, increase the liquid crystal display module of newtype as need, only need the daughter board of the liquid crystal display module of the corresponding the type of corresponding increase to get final product, has good expandability, universal strong.
The present invention has adopted high-speed microprocessor as processing module, makes that the picture writing speed is fast, good demonstration effect; The present invention increases data capacity by adopting Sheffer stroke gate type flash memory as memory module, can store abundant picture to be demonstrated.
The motherboard of demo system of the present invention is provided with the serial ports that links to each other with processing module, can make things convenient for download picture to be demonstrated again.Also be provided with the JTAG mouth that links to each other with processing module on the motherboard of demo system of the present invention, can realize online programming and debugging, make things convenient for upgrading in time of program.
Also be provided with the effect variation that user's operational module (as button) can make things convenient for the user to debug the parameter of liquid crystal drive and in time see display screen on the daughter board of demo system of the present invention.This makes demo system of the present invention also can be used as the test macro of liquid crystal display module.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the specific embodiment of the invention.
Embodiment
The specific embodiment of the present invention is referring to Fig. 1, and this demo system comprises motherboard and daughter board.Motherboard is provided with processing module, memory module and first general-purpose interface, and described processing module links to each other respectively with memory module, first general-purpose interface; Daughter board is provided with the interconnective liquid crystal display module and second general-purpose interface, and described second general-purpose interface and first general-purpose interface are suitable.
Motherboard is responsible for various processing such as the download, storage, transmission of data; Daughter board can be divided into CSTN daughter board and TFT daughter board by the difference of the liquid crystal display module (LCM) on it, and certainly, the CSTN daughter board can be various different demonstration specifications with liquid crystal display module on the TFT daughter board, as 2.2 inches, 2.5 inches etc.
Also be provided with the serial ports and the JTAG mouth that link to each other with processing module on the motherboard, serial ports is used for receiving to be treated demonstration data and deposits it in memory module by processing module, the JTAG mouth is used for on-line debugging and downloads, and JTAG is the international standard test protocol that combined testing action group (Joint Test Action Group) announces.The motherboard power supply can be provided by the 5v Switching Power Supply, also can be provided through the USB mouth by computer (PC).
In this embodiment, the processing module on the motherboard adopts C8051F type high-speed microprocessor, memory module to adopt Sheffer stroke gate type flash memory (NAND FLASH).
Also be provided with the user's operational module that links to each other with second general-purpose interface on the described daughter board, user's operational module will send processing module to corresponding to the response signal of user's operation by second general-purpose interface and first general-purpose interface successively, and processing module produces corresponding control signal and sends described liquid crystal display module to by first general-purpose interface and second general-purpose interface successively according to response signal.Described user's operational module can be the abundant various buttons of type, by some important parameters (as contrast) and display mode (single step, circulation, part demonstration etc.) that can real-time regulated LCM to the operation of button.
The course of work of above-mentioned demo system is as follows:
In the time of need demonstrating, at first motherboard is connected USB line, JTAG line and Serial Port Line, provide power supply by the USB mouth to motherboard or power to motherboard by independent 5V Switching Power Supply by PC; Serial Port Line connects the serial ports on PC serial ports and the motherboard, as the physical channel of image data download; Another USB mouth of PC is connected high-speed microprocessor JTAG line be used to carry out emulation and download, high-speed microprocessor can obtain the initialization data of demo system from PC like this.This embodiment downloads to application program in the high-speed microprocessor by the JTAG mouth by the software platform siliconlabs ISE of C8051F type high-speed microprocessor earlier, download successfully after, high-speed microprocessor moves this application program.Application program is initialization high-speed microprocessor and LCD Driver (liquid crystal drive) at first, the speed and the input and output (Input/Output that specifically comprise the configuration high-speed single-chip microcomputer, be called for short I/O) mouthful etc., by PC picture is processed into the corresponding format data and sends to high-speed microprocessor serial ports end by Serial Port Line again, high-speed microprocessor pre-exists it in inner storer after receiving image data, writes among the NAND FLASH after being filled with whole pictures data again.So repeatedly until the intact all required pictures of user's download.When the user will change picture certainly, can download again again with the data that control is wiped among the NAND FLASH.In C8051F type high-speed microprocessor, its internal storage is generally the FLASH of 128k.
After download finished, program and image data just were solidificated in the hardware of motherboard, and JTAG line and Serial Port Line can pull out, and after this powered on to move automatically to be used to demonstrate.The user is by entering LCD DEMO display mode by key control, high-speed microprocessor took out image data and delivered on 8 bit data bus from NAND FLASH this moment, wherein NAND FLASH and LCD Driver can shared this data bus of 8 so that save IO mouth resource, high-speed microprocessor produces the required control signal of LCD Driver simultaneously, to guarantee that data correctly write LCD Driver, in presentation process, handle by the application program in the high-speed microprocessor, response user operation transmits data to liquid crystal drive.
Be useful in the above-mentioned PC and transfer the picture on the PC to the corresponding data layout of LCM picture process software; In the NAND FLASH hardware drive program is arranged, be used to finish identification and the operation of high-speed microprocessor to NAND FLASH, and provide application programming interface (ApplicationProgramming Interface is called for short API) function to give the high-speed microprocessor application call; Core application in the single-chip microcomputer send initialization control signal and shows for LCD Driver and uses data, and in time responds user's operation.The hardware drive program of described NAND FLASH is to simulate with the I/O mouth of single-chip microcomputer.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. the demo system of a liquid crystal display module is characterized in that: comprise motherboard and daughter board; Described motherboard is provided with processing module, memory module and first general-purpose interface, and described processing module links to each other respectively with memory module, first general-purpose interface; Described daughter board is provided with the interconnective liquid crystal display module and second general-purpose interface, and described second general-purpose interface and first general-purpose interface are suitable; Described processing module is taken out from memory module and is treated demonstration data and send the liquid crystal display module to by first general-purpose interface and second general-purpose interface successively to show.
2. the demo system of liquid crystal display module according to claim 1 is characterized in that: described processing module is a high-speed microprocessor.
3. the demo system of liquid crystal display module according to claim 1 is characterized in that: described memory module is a nand flash memory.
4. according to the demo system of each described liquid crystal display module of claim 1-3, it is characterized in that: also be provided with the user's operational module that links to each other with second general-purpose interface on the described daughter board, described user's operational module will send processing module to corresponding to the response signal of user's operation by second general-purpose interface and first general-purpose interface successively, and processing module produces corresponding control signal and sends described liquid crystal display module to by first general-purpose interface and second general-purpose interface successively according to response signal.
5. the demo system of liquid crystal display module according to claim 4 is characterized in that: also be provided with on the described motherboard and be used to receive the serial ports for the treatment of demonstration data, described serial ports links to each other with processing module.
6. the demo system of liquid crystal display module according to claim 5, it is characterized in that: also be provided with on the described motherboard and be used to download the software and the initialize routine of described demo system and debug the software of described demo system and the JTAG mouth of initialize routine, described JTAG mouth links to each other with processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100745245A CN101312013B (en) | 2007-05-22 | 2007-05-22 | LCD module group demonstration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100745245A CN101312013B (en) | 2007-05-22 | 2007-05-22 | LCD module group demonstration system |
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| Publication Number | Publication Date |
|---|---|
| CN101312013A CN101312013A (en) | 2008-11-26 |
| CN101312013B true CN101312013B (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100745245A Expired - Fee Related CN101312013B (en) | 2007-05-22 | 2007-05-22 | LCD module group demonstration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114489240A (en) * | 2020-10-27 | 2022-05-13 | 神讯电脑(昆山)有限公司 | Motherboard with dual supply button and computer complete machine |
Citations (7)
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|---|---|---|---|---|
| US20050041158A1 (en) * | 2003-08-13 | 2005-02-24 | C And S Technology Co., Ltd. | System for efficiently interfacing with display data intersystem |
| CN1645449A (en) * | 2005-01-11 | 2005-07-27 | 华东师范大学 | Dynamic image driving circuit and method for organic electroluminescent displaying screen |
| US20050184993A1 (en) * | 2004-02-24 | 2005-08-25 | Ludwin Albert S. | Display processor for a wireless device |
| US20050253798A1 (en) * | 2001-02-07 | 2005-11-17 | Ikuo Hiyama | Image display system and image information transmission method |
| CN2814425Y (en) * | 2005-09-01 | 2006-09-06 | 比亚迪股份有限公司 | Liquid crystal display device module testing system |
| CN1909032A (en) * | 2006-08-18 | 2007-02-07 | 浙江亿源光电科技有限公司 | LED display screen control system |
| US20070091122A1 (en) * | 2005-10-26 | 2007-04-26 | Renesas Technology Corporation | Information device |
-
2007
- 2007-05-22 CN CN2007100745245A patent/CN101312013B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050253798A1 (en) * | 2001-02-07 | 2005-11-17 | Ikuo Hiyama | Image display system and image information transmission method |
| US20050041158A1 (en) * | 2003-08-13 | 2005-02-24 | C And S Technology Co., Ltd. | System for efficiently interfacing with display data intersystem |
| US20050184993A1 (en) * | 2004-02-24 | 2005-08-25 | Ludwin Albert S. | Display processor for a wireless device |
| CN1645449A (en) * | 2005-01-11 | 2005-07-27 | 华东师范大学 | Dynamic image driving circuit and method for organic electroluminescent displaying screen |
| CN2814425Y (en) * | 2005-09-01 | 2006-09-06 | 比亚迪股份有限公司 | Liquid crystal display device module testing system |
| US20070091122A1 (en) * | 2005-10-26 | 2007-04-26 | Renesas Technology Corporation | Information device |
| CN1909032A (en) * | 2006-08-18 | 2007-02-07 | 浙江亿源光电科技有限公司 | LED display screen control system |
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| CN101312013A (en) | 2008-11-26 |
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Granted publication date: 20101006 Termination date: 20170522 |