CN203006650U - TFT liquid crystal display for elevator - Google Patents
TFT liquid crystal display for elevator Download PDFInfo
- Publication number
- CN203006650U CN203006650U CN 201220568668 CN201220568668U CN203006650U CN 203006650 U CN203006650 U CN 203006650U CN 201220568668 CN201220568668 CN 201220568668 CN 201220568668 U CN201220568668 U CN 201220568668U CN 203006650 U CN203006650 U CN 203006650U
- Authority
- CN
- China
- Prior art keywords
- memory cell
- liquid crystal
- crystal display
- elevator
- tft liquid
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The utility model provides a TFT liquid crystal display for an elevator. The TFT liquid crystal display comprises a micro-control unit, a first storage unit, a second storage unit, a liquid crystal display screen and a site programmable gate array, wherein the micro-control unit is connected with the site programmable gate array through a data wire and an address wire. The site programmable gate array comprises a first port, a second port and a third port, wherein the first port is used for being connected with the first storage unit, the second port is used for being connected with the second storage unit, and the third port is used for being connected with the liquid crystal display screen. According to the TFT liquid crystal display, pictures are stored in the first storage unit, and the pictures needing to be displayed are cached in the second storage unit through the site programmable gate array, a good display effect is achieved, and product cost is considered also.
Description
Technical field
The utility model relates to elevator display apparatus, more particularly, relates to a kind of elevator TFT Liquid Crystal Display.
Background technology
Elevator display apparatus as the man-machine interface of elevator and people's communication, is equipment indispensable in elevator.Along with the fast development of elevator industry, also driven elevator display apparatus to variation, development in pluralism.
At present, elevator display apparatus on market mainly contains two kinds of LED matrix display and Liquid Crystal Displays, wherein LED matrix display technology is comparatively ripe, occupy the higher market share on market, all size, model are all very complete, especially aspect size, thickness, can satisfy various demands.And the time-to-market of LED matrix display is shorter, and cost is also lower.
Yet, to compare with the display effect of Liquid Crystal Display, the LED matrix display is ignored gradually in the advantage of the aspects such as dimensions, high performance-price ratio.Liquid Crystal Display is just more and more used with display interface attractive in appearance, diversified display format, abundant displaying contents, and wherein the TFT Liquid Crystal Display is most widely used.
The implementation of existing TFT Liquid Crystal Display mainly contains following three kinds:
(1) MCU+LCD special driving chip: thus MCU mainly realizes with the processing of the communication of electric life controller, input/output information and sends the control signal such as RGB realizing driving and demonstration to LCDs to the LCD special driving chip.This scheme can be compatible preferably for the TFT LCDs of different size (such as 7 cun, 8 cun, 9.7 cun, 10.4 cun etc.), but MCU is had relatively high expectations, and time-to-market is long, and cost is higher.
(2) with the MCU of lcd controller: the lcd controller that carries by MCU realizes that the driving of TFT LCDs controls.Although this scheme has been saved the cost that extends out the LCD control chip, the MCU cost taken by themselves is higher.And the function of this programme is all that the pure software mode realizes, and is higher to the resources occupation rate of MCU.In addition, the power-handling capability of the lcd controller that MCU carries is limited, drives effect for large-sized liquid crystal display not ideal enough.
(3) MCU+ liquid crystal drive module: MCU mainly realizes and the communication of electric life controller, and it will show that communication drives module to liquid crystal, and processes input/output information.This scheme is when driving the liquid crystal display of different size, and the liquid crystal drive module that only needs to change corresponding size gets final product, but realizes that cost is higher.And in this scheme, although can show given content according to customer requirement, as (these pictorial informations all are stored in SD card or Flash chip) such as logo (logo), publicity pictures, times, but when the user need to upgrade picture, need to take out the SD card according to seeking survival into corresponding picture change configuration information, in case user misoperation will cause system to show abnormal.
The utility model content
The technical problems to be solved in the utility model is,, display effect expensive for above-mentioned elevator LCD paid no attention to and thought of picture and upgrade inflexible problem, and a kind of elevator TFT Liquid Crystal Display is provided.
the technical scheme that the utility model solves the problems of the technologies described above is, a kind of elevator TFT Liquid Crystal Display is provided, comprise for communicating by letter with elevator control panel and producing the micro-control unit of control signal, the first memory cell that is used for store picture data, the second memory cell as the Image Display buffer area, for the LCDs that Shows Picture, be used for the field programmable gate array that the control signal according to microcontroller will prestore from the image data that the first memory cell reads the second memory cell and the picture that the second memory cell prestores is shown at LCDs, wherein said micro-control unit is connected data line and is connected with A wire with field programmable gate array, described field programmable gate array comprises for the first interface that connects the first memory cell, connect the second interface of the second memory cell and the 3rd interface that is used for connecting described LCDs.
Use in the TFT Liquid Crystal Display at elevator described in the utility model, but the large-capacity memory card that described the first memory cell is plug, and described the second memory cell is SDRAM.
Use in the TFT Liquid Crystal Display at elevator described in the utility model, described the first memory cell is NAND FLASH, and described the second memory cell is SDRAM, and described micro-control unit has USB interface.
Use in the TFT Liquid Crystal Display at elevator described in the utility model, described micro-control unit is connected with elevator control panel by the 485/CAN bus.
Use in the TFT Liquid Crystal Display at elevator described in the utility model, described telltale also comprises the input key that is connected to LCDs.
Use in the TFT Liquid Crystal Display at elevator described in the utility model, described input key is toggle switch.
Elevator of the present utility model has following beneficial effect with the TFT Liquid Crystal Display: to the second memory cell, realized display effect preferably and taken into account the cost of product by the first cell stores picture and the image cache that will need by field programmable gate array to show.In addition, the utility model can or connect the computer mode by USB flash drive and carry out the picture renewal, and update mode is flexible.
Description of drawings
Fig. 1 is the schematic diagram that the utility model elevator is used TFT Liquid Crystal Display the first embodiment.
Fig. 2 is the schematic diagram that the utility model elevator is used TFT Liquid Crystal Display the second embodiment.
Fig. 3 is the schematic diagram that the utility model elevator is used TFT Liquid Crystal Display the 3rd embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, be the schematic diagram that the utility model elevator is used TFT Liquid Crystal Display the first embodiment.Elevator in the present embodiment comprises micro-control unit (MCU) 11, field programmable gate array (FPGA) 12, the first memory cell 13, the second memory cell 14 and LCDs 15 with the TFT Liquid Crystal Display, wherein micro-control unit 11 is connected with field programmable gate array and is connected with A wire by data line, and field programmable gate array 12 comprises for the first interface that connects the first memory cell 13, be used for connecting the second interface of the second memory cell 14 and the 3rd interface that is used for connecting fluid crystal display screen 15.
LCDs 15 is used for Showing Picture data.
Micro-control unit 11 is used for the communication (by modes such as UART or CAN) of realization and elevator control panel, and processes input and output (lock ladder, fire-fighting, up-downgoing etc.) signal etc.When the demonstration of LCDs 15 is controlled, micro-control unit 11 is with the LCD driving governor of field programmable gate array 12 as an outside, by data line and A wire, control signal is sent to field programmable gate array 12, with the control of realization to field programmable gate array 12, and then realize Presentation Function.
The first memory cell 13 is used for store picture data, and field programmable gate array 12 can carry out read-write operation to it.But this first memory cell 13 is store storage floor address information etc. also, and is connected with microprocessing unit 13, when this first memory cell 13 is flash disk, can realize by micro-control unit 11 Data Update of this first memory cell 13.
The second memory cell 14 is as the Image Display buffer area.Particularly, can select according to the specification of LCDs the second memory cell 14 of suitable capacity, and the second memory cell 14 is divided into several zones according to the specification of LCDs.Resolution as LCDs is 800*480,16 looks, corresponding buffer size should be 800*480*16/8=750KB, can select the second memory cell 14 of 64M bit, and the second memory cell 14 is carried out 8 deciles, each regional 1MB can 8 of pre-stored scheme layer (a figure layer here refers to that LCDs shows the data volume of a complete picture), thereby realize the seamless switching of picture, and realize that simple animation shows.
Field programmable gate array 12 receives the control information of micro-control unit 11, and LCDs corresponding to output drives signal.In the present embodiment, field programmable gate array 12 is used for will reading prestore the second memory cell 14 and picture that the second memory cell 14 prestores is shown at LCDs 15 of image data from the first memory cell 13 according to the control signal of micro-control unit 11.
Particularly, the driving of built-in the first memory cell 13 of above-mentioned field programmable gate array 12 and the second memory cell 14, control signal according to micro-control unit 11 inputs reads the image data in the first memory cell 13 and it is write certain figure layer of the second memory cell 14.The figure layer operation is pressed in the control of 12 pairs of the first memory cell 13 of this field programmable gate array, and the data (a figure layer here refers to that LCDs shows the data volume of a complete picture) that at every turn read a figure layer store the second memory cell 14 into.Field programmable gate array 12 can be realized hard copy fast to the figure layer in the second memory cell 14 when control display, realize smooth picture playing.
As shown in Figure 2, use in TFT Liquid Crystal Display the second embodiment at the utility model elevator, store pictorial information into NAND FLASH 23, the Image Display buffer area adopts SDRAM 24.Micro-control unit has USB interface 211, and the internal USB driving, thereby can select to upgrade picture or connect in succession renewal, handled easily to greatest extent with computer direct by the USB flash disk mode.
Above-mentioned LCDs 15 also is connected with an input key, and this input key can be toggle switch.This toggle switch just changes by level and changes its scanning sequency, thereby can change the scan mode of liquid crystal display.As: as horizontal aobvious in, correct mounting means be terminal down, but be subject to on-the-spot particular surroundings, may can only take terminal mounting means up, at this moment can pass through toggle switch, the Rotate 180 degree will Show Picture.
As shown in Figure 3, the utility model elevator with TFT Liquid Crystal Display the 3rd embodiment in, but pictorial information is stored into the large-capacity memory card of SD card 33(or other plugs), the Image Display buffer area adopts SDRAM 34.Above-mentioned SD card 23 can directly be extracted, to realize the bookkeeping (for example upgrading) to picture, handled easily to greatest extent.
The above; it is only the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement are within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (6)
1. elevator TFT Liquid Crystal Display, it is characterized in that: comprise for communicating by letter with elevator control panel and producing the micro-control unit of control signal, the first memory cell that is used for store picture data, the second memory cell as the Image Display buffer area, for the LCDs that Shows Picture, be used for the field programmable gate array that the control signal according to microcontroller will prestore from the image data that the first memory cell reads the second memory cell and the picture that the second memory cell prestores is shown at LCDs, wherein said micro-control unit is connected data line and is connected with A wire with field programmable gate array, described field programmable gate array comprises for the first interface that connects the first memory cell, connect the second interface of the second memory cell and the 3rd interface that is used for connecting described LCDs.
2. elevator according to claim 1 TFT Liquid Crystal Display is characterized in that: but described the first memory cell is the large-capacity memory card of plug, and described the second memory cell is SDRAM.
3. elevator according to claim 1 TFT Liquid Crystal Display, it is characterized in that: described the first memory cell is NAND FLASH, and described the second memory cell is SDRAM, and described micro-control unit has USB interface.
4. elevator according to claim 1 TFT Liquid Crystal Display is characterized in that: described micro-control unit is connected with elevator control panel by the 485/CAN bus.
5. elevator according to claim 1 TFT Liquid Crystal Display, it is characterized in that: described telltale also comprises the input key that is connected to LCDs.
6. elevator according to claim 5 TFT Liquid Crystal Display, it is characterized in that: described input key is toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568668 CN203006650U (en) | 2012-10-31 | 2012-10-31 | TFT liquid crystal display for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568668 CN203006650U (en) | 2012-10-31 | 2012-10-31 | TFT liquid crystal display for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203006650U true CN203006650U (en) | 2013-06-19 |
Family
ID=48598265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568668 Expired - Fee Related CN203006650U (en) | 2012-10-31 | 2012-10-31 | TFT liquid crystal display for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203006650U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345909A (en) * | 2013-07-24 | 2013-10-09 | 南车株洲电力机车研究所有限公司 | Communication control method and device of train display screen |
| CN111710309A (en) * | 2020-06-30 | 2020-09-25 | 深圳Tcl数字技术有限公司 | Liquid crystal display driving method, device, liquid crystal display system and storage medium |
| CN112667191A (en) * | 2021-01-19 | 2021-04-16 | 青岛海尔科技有限公司 | Display method and device, storage medium and electronic device |
-
2012
- 2012-10-31 CN CN 201220568668 patent/CN203006650U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345909A (en) * | 2013-07-24 | 2013-10-09 | 南车株洲电力机车研究所有限公司 | Communication control method and device of train display screen |
| CN103345909B (en) * | 2013-07-24 | 2016-02-24 | 南车株洲电力机车研究所有限公司 | A kind of communication control method of train display screen and device |
| CN111710309A (en) * | 2020-06-30 | 2020-09-25 | 深圳Tcl数字技术有限公司 | Liquid crystal display driving method, device, liquid crystal display system and storage medium |
| CN111710309B (en) * | 2020-06-30 | 2022-07-29 | 深圳Tcl数字技术有限公司 | Liquid crystal display screen driving method and device, liquid crystal display system and storage medium |
| CN112667191A (en) * | 2021-01-19 | 2021-04-16 | 青岛海尔科技有限公司 | Display method and device, storage medium and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101713177B1 (en) | System and method for virtual displays | |
| CN101825790B (en) | Inversion after LCD reordering | |
| CN104145213B (en) | Pixel inversion pseudomorphism is reduced | |
| US10180741B2 (en) | Electronic apparatus including emissive display and transparent display and method of controlling same | |
| CN108476306A (en) | Image display method and terminal device | |
| CN204390685U (en) | The interactive network formula advertisement machine that a kind of three screen displays are shown | |
| CN202771651U (en) | Dual display touch screen type dual-core electronic schoolbag | |
| CN108076665A (en) | A kind of display methods and electronic equipment | |
| CN203006650U (en) | TFT liquid crystal display for elevator | |
| CN111752504B (en) | Multi-screen display method and system for electronic equipment, electronic equipment and computer readable medium | |
| CN102663989B (en) | A cache processing method and device for mobile terminal display | |
| CN105955532B (en) | Touch-control display panel and its driving circuit, electronic equipment | |
| CN101853146A (en) | A dual-display notebook computer and its implementation method | |
| CN201204030Y (en) | Apparatus for updating LCD EDID | |
| CN103412797B (en) | A kind of electric power monitoring operation center large-size screen monitors displaying control system | |
| CN106782274A (en) | A kind of display device and its driving method | |
| CN203299695U (en) | E-book and tablet computer two-in-one application device | |
| CN202871110U (en) | Electronic school bag with double display touch screen | |
| KR20120097863A (en) | Multi-display method in smartphone based on virtualization | |
| CN102866835B (en) | A kind of interactive information screen system | |
| CN201654617U (en) | Electronic device | |
| CN215895428U (en) | USB display driving circuit supporting RGB liquid crystal screen | |
| CN101378557B (en) | Mobile phone with electronic photo album and method for using external electronic photo album | |
| KR101719273B1 (en) | Display controller and display device including the same | |
| CN103258522A (en) | Display window configuration type display system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160216 Address after: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Patentee after: Suzhou Huichuan Technology Co.,Ltd. Patentee after: Shenzhen Inovance Technology Co., Ltd. Address before: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Patentee before: Suzhou Huichuan Technology Co.,Ltd. Patentee before: Suzhou Monarch Control Technology Co., Ltd. Patentee before: Shenzhen Inovance Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20191031 |