CN202549261U - TFT (Thin Film Transistor) liquid crystal display system of LNG (Liquefied Natural Gas) filling machine - Google Patents
TFT (Thin Film Transistor) liquid crystal display system of LNG (Liquefied Natural Gas) filling machine Download PDFInfo
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- CN202549261U CN202549261U CN2012201503042U CN201220150304U CN202549261U CN 202549261 U CN202549261 U CN 202549261U CN 2012201503042 U CN2012201503042 U CN 2012201503042U CN 201220150304 U CN201220150304 U CN 201220150304U CN 202549261 U CN202549261 U CN 202549261U
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Abstract
The utility model discloses a TFT (Thin Film Transistor) liquid crystal display system of an LNG (Liquefied Natural Gas) filling machine. The TFT liquid crystal display system comprises a power supply, a master control chip, an ARM embedded control chip, a driving group and a TFT liquid crystal display screen, wherein the master control chip, the ARM embedded control chip, the driving group and the TFT liquid crystal display screen are electrically connected in sequence; the master control chip is electrically connected with the ARM embedded control chip through an interface board; and one end of the interface board is electrically connected with the power supply while the other end is electrically connected with the master control chip and the ARM embedded control chip, respectively. The TFT liquid crystal display system of the Liquefied Natural Gas) filling machine has the effects of improving the reaction speed of the display screen and accurately controlling to display color gradations, and has the advantages of good brightness, high contrast, strong hierarchical sense, bright color, long service life and the like.
Description
Technical field
The utility model relates to liquefied natural gas (LNG) (LNG:Liquefied Natural Gas) charging machine control system, relates in particular to a kind of TFT (TFT:Thin Film Transistor) liquid crystal display systems of the LNG of being used for charging machine control system.
Background technology
In the prior art, the research and development of products of LNG charging machine liquid crystal display systems and the product that occurs on the market are output and the demonstration of carrying out related interfaces through common liquid crystal display mostly, and it shows each data and interface through the dot matrix display technique.Be to count what the restriction of ranks display width of the maximum restriction of existing this liquid crystal display systems itself; And it must drive through associated microprocessor; Not only internal processes drives complicacy, and is vulnerable to very much ranks dot matrix number and the weak restriction of antijamming capability own on stream.Moreover; Because displaying contents can be according to the decision of the not included additional function of product own (some can only display text, letter etc.); LNG charging machine operation environment itself is just comparatively abominable in addition; So As time goes on, reach user of service's maintenance at ordinary times, be easy to occur ranks and lack that pen, display brightness reduce, contrast is strong, and show shortcomings such as the dark space occur.
The utility model content
The purpose of the utility model is; A kind of LNG charging machine TFT liquid crystal display systems is provided; It has not only improved the reaction velocity of display screen, can accurately control display level, and have that good brightness, contrast are high, stereovision is strong, bright-colored, and advantage such as long service life.
For realizing above-mentioned purpose; The utility model provides a kind of LNG charging machine TFT liquid crystal display systems; Comprise power supply, it also comprises successively the main control chip that electrically connects, ARM embedded control chip, drive group, and TFT LCDs, between this main control chip and the ARM embedded control chip through interface board electric connection; This interface board one end and power supply electrically connect, and this power supply other end electrically connects with main control chip and ARM embedded control chip respectively.
Wherein, said main control chip one end also is electrically connected with a crystal oscillator.
In the utility model, it is the chip of PIC24FJ256DA206 that main control chip can adopt model.
The frequency of said crystal oscillator is 11.0592HZ.
Further, comprise an embedded control chip, and the two embedded chip groups that electrically connect with this embedded control chip respectively in the said ARM embedded control chip.
It is the control chip of DM9000EP that the embedded control chip of the utility model can adopt model, and the model of embedded chip group is U2440.
Further, comprise two lcd drive chips in the said drive group.
Wherein, the model of said lcd drive chip is AT056TN53.
In addition, the interface board of the utility model also electrically connects with a plurality of peripheral interfaces respectively.
Moreover the TFT LCDs in the utility model also is electrically connected with a contrast adjustment control module, and this contrast adjustment control module one end also electrically connects with drive group.
The utility model LNG charging machine TFT liquid crystal display systems; It uses the TFT lcd technology on the LNG charging machine; Better strengthen the possibility and the science of the dialogue of LNG charging machine and man-machine interface, strengthened data presentation and the function of The whole control system between microprocessor and the output device greatly, not only improved the reaction velocity of display screen; Simultaneously can accurately control display level; Have that good brightness, contrast are high, stereovision is strong, bright-colored, and advantage such as long service life, can adapt to the liquid crystal display adaptive faculty of LNG charging machine under varying environment, do not receive the restriction of environment for use.
Description of drawings
Fig. 1 is the modular structure synoptic diagram of a kind of specific embodiment of the utility model LNG charging machine TFT liquid crystal display systems.
Embodiment
As shown in Figure 1; The utility model provides a kind of LNG charging machine TFT liquid crystal display systems; Comprise power supply 10, it also comprises successively the main control chip 20 that electrically connects, ARM embedded control chip 30, drive group 40, and TFT LCDs 50, between this main control chip 20 and the ARM embedded control chip 30 through an interface board 22 electric connections; These interface board 22 1 ends and power supply 10 electrically connect, and these power supply 10 other ends electrically connect with main control chip 20 and ARM embedded control chip 30 respectively.
Wherein, said main control chip 20 1 ends also are electrically connected with a crystal oscillator (Crystal Oscillators) 24.It is the crystal oscillator of 11.0592HZ that this crystal oscillator 24 can adopt frequency.As a kind of specific embodiment of the utility model, it is the chip of PIC24FJ256DA206 that this main control chip 20 can adopt model.
Further, comprise an embedded control chip 32, and the two embedded chip groups 34 that electrically connect with this embedded control chip 32 respectively in the said ARM embedded control chip 30.It is the control chip of DM9000EP that the embedded control chip 32 of the utility model can adopt model, and the model of embedded chip group 34 is U2440.This ARM embedded control chip 30 can be carried out data communication through parallel data line (wire harness is up to more than 30) and drive group 40 as the data-interface of chip for driving, need not to adopt traditional winding displacement communication mode, and it is simpler to connect up.This utility model is that the embedded control chip 32 of DM9000EP and embedded chip group 34 that model is U2440 intercom with drive group 40 mutually through model, and works through drive group 40 direct drive TFT LCDs 50.Simultaneously; Because the inline operations of this ARM embedded control chip 30 system own; Directly have keyboard, reach the mouse interface operating function; Better increase the possibility and the science of the dialogue of LNG charging machine and man-machine interface, and increased data presentation and the function of The whole control system between microprocessor and the output device greatly.
Further, comprise two lcd drive chips 42 in the said drive group 40.In the utility model specific embodiment, it is the main driving of the liquid crystal drive special chip of AT056TN53 as TFT LCDs 50 that said lcd drive chip 42 can adopt model.Because the technology that adopts this liquid crystal drive special chip and ARM embedded microprocessor to combine improves the function of liquid crystal display greatly, can also show from moving screen according to the different operating function.When design; Take into full account the main mutual interference design that shows with LCD backlight that drives; Through power supply partition board technology; The effect that the power supply power supply that reaches TFT LCDs 50 and the power supply power supply of drive group 40 are independent of each other, so that guarantee the brightness and the contrast that show in any environment, can be owing to power supply is supplied with the operate as normal that influence both.During concrete design, in order to reach the TFT LCDs 50 mutual isolation with working power backlight, the lcd drive chip 42 that to have adopted two models be AT056TN53 drives, and has improved the antijamming capability of system greatly.
In the utility model specific embodiment, said interface board 22 also electrically connects with a plurality of peripheral interfaces 26 respectively.
In sum; The LNG charging machine TFT liquid crystal display systems of the utility model, it uses the TFT lcd technology on the LNG charging machine, better strengthened the possibility and the science of LNG charging machine and man-machine interface dialogue; Data presentation and the function of The whole control system between microprocessor and the output device have been strengthened greatly; Not only improve the reaction velocity of display screen, simultaneously can accurately control display level, had good brightness, contrast is high, stereovision is strong, bright-colored, and advantage such as long service life; Can adapt to the liquid crystal display adaptive faculty of LNG charging machine under varying environment, not receive the restriction of environment for use.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to the technical scheme and the technical conceive of the utility model, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.
Claims (10)
1. LNG charging machine TFT liquid crystal display systems; Comprise power supply; It is characterized in that, also comprise successively the main control chip that electrically connects, ARM embedded control chip, drive group, and TFT LCDs, between this main control chip and the ARM embedded control chip through interface board electric connection; This interface board one end and power supply electrically connect, and this power supply other end electrically connects with main control chip and ARM embedded control chip respectively.
2. LNG charging machine TFT liquid crystal display systems as claimed in claim 1 is characterized in that said main control chip one end also is electrically connected with a crystal oscillator.
3. LNG charging machine TFT liquid crystal display systems as claimed in claim 2 is characterized in that, it is the chip of PIC24FJ256DA206 that said main control chip adopts model.
4. LNG charging machine TFT liquid crystal display systems as claimed in claim 2 is characterized in that the frequency of said crystal oscillator is 11.0592HZ.
5. LNG charging machine TFT liquid crystal display systems as claimed in claim 1 is characterized in that, comprises an embedded control chip, and the two embedded chip groups that electrically connect with this embedded control chip respectively in the said ARM embedded control chip.
6. LNG charging machine TFT liquid crystal display systems as claimed in claim 5 is characterized in that, it is the control chip of DM9000EP that said embedded control chip adopts model, and the model of embedded chip group is U2440.
7. LNG charging machine TFT liquid crystal display systems as claimed in claim 1 is characterized in that, comprises two lcd drive chips in the said drive group.
8. LNG charging machine TFT liquid crystal display systems as claimed in claim 7 is characterized in that the model of said lcd drive chip is AT056TN53.
9. LNG charging machine TFT liquid crystal display systems as claimed in claim 1 is characterized in that, said interface board also electrically connects with a plurality of peripheral interfaces respectively.
10. LNG charging machine TFT liquid crystal display systems as claimed in claim 1 is characterized in that said TFT LCDs also is electrically connected with a contrast adjustment control module, and this contrast adjustment control module one end also electrically connects with drive group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201503042U CN202549261U (en) | 2012-04-11 | 2012-04-11 | TFT (Thin Film Transistor) liquid crystal display system of LNG (Liquefied Natural Gas) filling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201503042U CN202549261U (en) | 2012-04-11 | 2012-04-11 | TFT (Thin Film Transistor) liquid crystal display system of LNG (Liquefied Natural Gas) filling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549261U true CN202549261U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201503042U Expired - Fee Related CN202549261U (en) | 2012-04-11 | 2012-04-11 | TFT (Thin Film Transistor) liquid crystal display system of LNG (Liquefied Natural Gas) filling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440838A (en) * | 2013-07-22 | 2013-12-11 | 乐视致新电子科技（天津）有限公司 | Display control method and display device |
| CN104700815A (en) * | 2013-12-06 | 2015-06-10 | 神讯电脑(昆山)有限公司 | Brightness control device and brightness control method |
-
2012
- 2012-04-11 CN CN2012201503042U patent/CN202549261U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440838A (en) * | 2013-07-22 | 2013-12-11 | 乐视致新电子科技（天津）有限公司 | Display control method and display device |
| CN103440838B (en) * | 2013-07-22 | 2016-04-06 | 乐视致新电子科技（天津）有限公司 | A kind of display control method and display device |
| CN104700815A (en) * | 2013-12-06 | 2015-06-10 | 神讯电脑(昆山)有限公司 | Brightness control device and brightness control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 401329 Chongqing Jiulongpo Baishiyi town Hailong Village 8 Patentee after: Chongqing Juchuang Metering Equipment Co.,Ltd. Address before: 401120, No. 9, Yubei District Airport Industrial Park, Chongqing Patentee before: Chongqing Juchuang Metering Equipment Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: TFT (Thin Film Transistor) liquid crystal display system of LNG (Liquefied Natural Gas) filling machine Effective date of registration: 20140923 Granted publication date: 20121121 Pledgee: Chongqing science and technology finance Company limited by guarantee Pledgor: Chongqing Juchuang Metering Equipment Co.,Ltd. Registration number: 2014500000008 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160201 Granted publication date: 20121121 Pledgee: Chongqing science and technology finance Company limited by guarantee Pledgor: Chongqing Juchuang Metering Equipment Co.,Ltd. Registration number: 2014500000008 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |