CN102820016A - Liquid crystal image display device and excavator - Google Patents
Liquid crystal image display device and excavator Download PDFInfo
- Publication number
- CN102820016A CN102820016A CN2012103288524A CN201210328852A CN102820016A CN 102820016 A CN102820016 A CN 102820016A CN 2012103288524 A CN2012103288524 A CN 2012103288524A CN 201210328852 A CN201210328852 A CN 201210328852A CN 102820016 A CN102820016 A CN 102820016A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- tft
- microprocessor
- memory module
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a liquid crystal image display device and an excavator and belongs to the technical field of engineering machinery. The liquid crystal image display device comprises a serial port, a microprocessor, a thin film transistor liquid crystal display (TFT-LCD) controller, a video port, a flash module, a video memory module and a TFT-LCD module, wherein the microprocessor and the serial port achieve bidirectional data connection; data signals of the microprocessor are in bidirectional connection with the flash module; the microprocessor and the TFT-LCD controller achieve bidirectional data transmission, the TFT-LCD controller is in bidirectional connection with the video memory module, and the TFT-LCD controller is connected with the TFT-LCD module through the video port. By adopting the combined structure of the TFT-LCD controller and the microprocessor, the liquid crystal image display device is suitable for the field of engineering machinery excavators, has high reliability and strong symmetric generality and achieves intellectualization of functions through instructions transmitted by the serial port.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of liquid crystal image display device and excavator.
Background technology
In engineering machinery field, excavator occupies principalship.Since excavator itself be in the abominable operating environment with and violent changeable working load, therefore the instrument indication to excavator has proposed high requirement.The panel board of present crawler hypraulic excavator adopts mechanical indicator and single color LCD (Liquid Crystal Display more; LCD) indicates; But this instrument shows that not only display effect is relatively poor, and is intelligent inadequately, and can't satisfy the need of work of excavator.
Summary of the invention
Present engineering machinery panel board adopts mechanical indicator and singly color LCD display effect is poor in order to solve, and is intelligent inadequately, and can't satisfy the problem of engineering machinery operate as normal needs, and a kind of liquid crystal image display device and excavator are provided at present.Concrete technical scheme is following:
A kind of liquid crystal image display device; Comprise serial line interface, microprocessor; Tft liquid crystal display controller (Thin-Film-Transistor LCD; TFT-LCD), video interface, flash memory module, video memory module and TFT-LCD module, said microprocessor and said serial line interface are electrically connected; Said microprocessor is electrically connected with said flash memory module, is used to control the video data that reads said flash memory module; Said microprocessor is electrically connected with said TFT-LCD controller, is used for the video data that reads from said flash memory module is sent to said TFT-LCD controller; Said TFT-LCD controller and said video memory module are electrically connected, and are used for said video memory module read-write operation; Be connected through said video interface between said TFT-LCD controller and said TFT-LCD module, said video data shown through said TFT-LCD to make said TFT-LCD controller.
Preferably, said microprocessor is ARM (Adanced RISC Machines, an Advanced RISC Machine).
Preferably, said flash memory module is nandflash (NAND FLASH).
Preferably, said video memory module be synchronous DRAM (Synchronous Dynamic Random Access Memory, SDRAM).
Preferably, said video interface is a three primary colors input video interface (rgb interface).
Preferably; Bidirectional data transfers between said microprocessor and the serial line interface; Bidirectional data transfers between said microprocessor and the said flash memory module; Bidirectional data transfers between said microprocessor and the said tft liquid crystal display controller, bidirectional data transfers between said tft liquid crystal display controller and the said video memory module, bidirectional data transfers between said video interface and the said Thin Film Transistor-LCD.
Preferably, said bidirectional data transfers adopts two FIFO modes.
A kind of excavator, said excavator are equipped with above-mentioned each described liquid crystal image display device.
Compared with prior art; Liquid crystal image display device and excavator that technique scheme provides have the following advantages: through adopting the structure of TFT-LCD controller and microprocessor combination; Be applicable to engineering machinery excavator field, have higher reliability and stronger system's versatility; Send the intellectuality that instruction also can realize function through serial ports.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the liquid crystal image display device synoptic diagram that provides in the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
As shown in Figure 1, the embodiment of the invention provides a kind of liquid crystal image display device, serial line interface, microprocessor, and TFT-LCD controller, video interface, flash memory module, video memory module and TFT-LCD module, said microprocessor and said serial line interface are electrically connected; Said microprocessor is electrically connected with said flash memory module, is used to control the video data that reads said flash memory module; Said microprocessor is electrically connected with said TFT-LCD controller, is used for the video data that reads from said flash memory module is sent to said TFT-LCD controller; Said TFT-LCD controller and said video memory module are electrically connected, and are used for said video memory module read-write operation; Be connected through said video interface between said TFT-LCD controller and said TFT-LCD module, said video data shown through said TFT-LCD to make said TFT-LCD controller.
Wherein being specially microprocessor is ARM; Flash memory module is NAND FLASH; The video memory module is SDRAM; Video interface is a rgb interface.Microprocessor ARM realizes that with serial line interface bi-directional data is connected; The data-signal of microprocessor ARM is connected with NAND FLASH is two-way, realizes the control of reading to NAND FLASH; Microprocessor ARM and TFT-LCD controller are realized bidirectional data transfers; Said TFT-LCD controller is connected with video memory SDRAM is two-way; Realization is to the read-write operation of video memory SDRAM; The TFT-LCD controller is connected through rgb interface with the TFT-LCD module, realizes that the display screen that the data of TFT-LCD controller is passed through the TFT-LCD module shows; Whole device also comprises power supply, and wherein power supply comprises the TFT-LCD backlight circuit.
What whole device adopted is that " transmission-response " interrupt mode is carried out the multifunctional intellectual serial communication.At first; After ARM receives the order of serial line interface, it is resolved and computing, the FSMC data bus that carries through ARM again (has been saved the GPIO resource; Improved the response speed of system) NAND FLASH and video memory SDRAM are operated; At last, the TFT-LCD controller carries out the screen display of TFT-LCD module through rgb interface behind video memory SDRAM read data.Wherein, the NAND FLASH that extends out is used for carrying out the storage of picture library, character library and user data (for example journal file), and SDRAM provides 1-4 page or leaf backstage display buffer.This device can be realized exquisite interface, picture and text, dynamic menu display effect; And support the text display multi-lingual, that multiple font is big or small; Thereby make it reach multifunctional intelligent, and TFT-LCD module interface adopt 16 look RGB patterns, can realize 65535 kinds of colors.
In addition, device adopts FIFO (First IN First OUT, two FIFOs) technology, can solve the rate-matched problem between each module; Avoided being in for a long time transmit status, the TFT-LCD driver can can't respond and cause screen sonwflake phenomenon to occur, influences display effect.
The embodiment of the invention also discloses a kind of excavator, this excavator is equipped with above-mentioned liquid crystal image display device.Other parts of this excavator can be with reference to prior art, does not do at this and gives unnecessary details.
The disclosed liquid crystal image display device of the embodiment of the invention and excavator adopt the structure of TFT-LCD controller and technical grade ARM combination, have effectively satisfied the TFT-LCD module in engineering machinery excavator Application for Field and improved the intellectuality that the excavator instrument is indicated.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a liquid crystal image display device is characterized in that, comprises serial line interface, microprocessor, tft liquid crystal display controller, video interface, flash memory module, video memory module, Thin Film Transistor-LCD;
Said microprocessor and said serial line interface are electrically connected;
Said microprocessor is electrically connected with said flash memory module, is used to control the video data that reads said flash memory module;
Said microprocessor is electrically connected with said tft liquid crystal display controller, is used for the video data that reads from said flash memory module is sent to said tft liquid crystal display controller;
Said tft liquid crystal display controller and said video memory module are electrically connected, and are used for said video memory module read-write operation; Be connected through said video interface between said tft liquid crystal display controller and said Thin Film Transistor-LCD module, said video data shown through said Thin Film Transistor-LCD to make said tft liquid crystal display controller.
2. liquid crystal image display device according to claim 1 is characterized in that, said microprocessor is an Advanced RISC Machine.
3. liquid crystal image display device according to claim 1 is characterized in that, said flash memory module is a nandflash.
4. liquid crystal image display device according to claim 1 is characterized in that, said video memory module is a synchronous DRAM.
5. liquid crystal image display device according to claim 1 is characterized in that, said video interface is a three primary colors input video interface.
6. liquid crystal image display device according to claim 1; It is characterized in that; Bidirectional data transfers between said microprocessor and the serial line interface; Bidirectional data transfers between said microprocessor and the said flash memory module; Bidirectional data transfers between said microprocessor and the said tft liquid crystal display controller, bidirectional data transfers between said tft liquid crystal display controller and the said video memory module, bidirectional data transfers between said video interface and the said Thin Film Transistor-LCD.
7. liquid crystal image display device according to claim 6 is characterized in that, said bidirectional data transfers adopts two FIFO modes.
8. an excavator is characterized in that, said excavator is equipped with each described liquid crystal image display device of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103288524A CN102820016A (en) | 2012-09-07 | 2012-09-07 | Liquid crystal image display device and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103288524A CN102820016A (en) | 2012-09-07 | 2012-09-07 | Liquid crystal image display device and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102820016A true CN102820016A (en) | 2012-12-12 |
Family
ID=47304104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103288524A Pending CN102820016A (en) | 2012-09-07 | 2012-09-07 | Liquid crystal image display device and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102820016A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201904073U (en) * | 2010-09-28 | 2011-07-20 | 中国电子科技集团公司第三十八研究所 | Vehicle-mounted liquid crystal display driving system with bitmap OSD (On Screen Display) |
| CN102419954A (en) * | 2010-10-28 | 2012-04-18 | 微软公司 | Transparent display assembly |
| US20120162238A1 (en) * | 2010-12-23 | 2012-06-28 | Microsoft Corporation | Display Region Refresh |
| CN102549645A (en) * | 2009-05-11 | 2012-07-04 | 英派尔科技开发有限公司 | Foldable portable display |
-
2012
- 2012-09-07 CN CN2012103288524A patent/CN102820016A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549645A (en) * | 2009-05-11 | 2012-07-04 | 英派尔科技开发有限公司 | Foldable portable display |
| CN201904073U (en) * | 2010-09-28 | 2011-07-20 | 中国电子科技集团公司第三十八研究所 | Vehicle-mounted liquid crystal display driving system with bitmap OSD (On Screen Display) |
| CN102419954A (en) * | 2010-10-28 | 2012-04-18 | 微软公司 | Transparent display assembly |
| US20120162238A1 (en) * | 2010-12-23 | 2012-06-28 | Microsoft Corporation | Display Region Refresh |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100367479B1 (en) | Monitor driving apparatus with auxiliary monitor | |
| US20170295343A1 (en) | Low Power Consumption Display Device | |
| CN102054426B (en) | Shift buffer circuit | |
| KR101545682B1 (en) | Video rendering across a high speed peripheral interconnect bus | |
| CN103105684A (en) | Test method, device, system and test equipment of liquid crystal display module | |
| CN104916250A (en) | Data transmission method and device and display device | |
| CN102779020A (en) | Ultra high definition liquid crystal display device | |
| CN101615320B (en) | Commercial cash register | |
| CN207097428U (en) | A kind of liquid crystal SECO plate of multi signal input | |
| US20130278589A1 (en) | Display control system | |
| US11024254B2 (en) | Display control system and display apparatus | |
| CN102063857A (en) | Integrated circuit device and electronic device | |
| CN102820016A (en) | Liquid crystal image display device and excavator | |
| US11488514B2 (en) | Display panel and display apparatus | |
| CN101800021B (en) | Driving device for driving display panel and source drivers thereof | |
| CN202795295U (en) | Control main board of liquid crystal touch screen module | |
| CN203324966U (en) | Display device | |
| CN102184712A (en) | Method and device for demonstrating matrix backlight and display equipment | |
| CN202093425U (en) | Ultra high definition liquid crystal display equipment | |
| CN211236770U (en) | Domestic intelligent terminal based on MCU integrated GPU | |
| US20090073146A1 (en) | Interface device and display device using the same | |
| CN214278919U (en) | 23.8-inch integrated intelligent terminal | |
| CN102385841A (en) | Video random access memory (VRAM) color liquid crystal display | |
| CN212322249U (en) | Plug-and-play case panel display module | |
| CN205281328U (en) | High reliability industrial control computer mainboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121212 |