CN107316573A - Split screen device, combination of liquid crystals display screen and its method of work under single-chip microcomputer control - Google Patents
Split screen device, combination of liquid crystals display screen and its method of work under single-chip microcomputer control Download PDFInfo
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- CN107316573A CN107316573A CN201710454494.4A CN201710454494A CN107316573A CN 107316573 A CN107316573 A CN 107316573A CN 201710454494 A CN201710454494 A CN 201710454494A CN 107316573 A CN107316573 A CN 107316573A
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- split screen
- module
- screen device
- display
- processor module
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims description 14
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The present invention relates to split screen device, combination of liquid crystals display screen and its method for work under a kind of control of single-chip microcomputer, wherein well-behaved screen device includes：Processor module, the display module being connected with the processor module；Wherein described processor module is suitable to display module setting multiple interfaces, and carries out split screen switching display by split screen button；Split screen device, combination of liquid crystals display screen and its method for work of the present invention, the switching control in turn of multi-screen by chip microcontroller, this programme uses single-chip microcomputer, with simple in construction, the advantage of good reliability.
Description
Technical field
The invention belongs to single-chip microcomputer and the intelligent control technology of liquid crystal display, and in particular to the liquid under a kind of single-chip microcomputer control
Brilliant display module split screen device and method.
Background technology
LCD MODULE is as a kind of electron display device, with small volume, low in energy consumption, light weight and programmable etc. excellent
Point, most of liquid crystal display, controller, RAM, ROM etc. are concentrated on pcb board, referred to as LCD MODULE.It is many at present to answer
The different screen content of liquid crystal display is needed with occasion, therefore split screen display available control is an important content.
The content of the invention
It is an object of the invention to provide a kind of split screen device, combination of liquid crystals display screen and its method of work.
In order to solve the above-mentioned technical problem, the invention provides a kind of split screen device, including：
Processor module, the display module being connected with the processor module；Wherein described processor module is suitable to will display
Module sets multiple interfaces, and carries out split screen switching display by split screen button.
Further, the display module is communicated with processor module using parallel schema, and the LCM of display module is hung
It is connected in the bus of processor module, i.e. the RS ends, R/W ends and ENAB of the corresponding I/O port of processor module respectively with display module
End is connected, and remaining corresponding I/O port of processor module is connected with the DB0-DB7 ends of display module respectively.
Further, the processor module is suitable to switch corresponding flag bit by split screen button to select corresponding interface,
And the interface is four, that is, set No. 1 interface of the correspondence of flag bit 00；Set No. 2 interfaces of the correspondence of flag bit 01；Set flag bit
10 No. 3 interfaces of correspondence；And No. 4 interfaces of the setting correspondence of flag bit 11.
Another aspect, present invention also offers a kind of combination of liquid crystals display screen.
The combination of liquid crystals display screen includes：Combined and constituted by the split screen device described in several, will respectively distribute dress
Each display module in putting is spliced, to form combination of liquid crystals display screen.
Further, the split screen device is provided with toggle switch, sets a split screen device to be main frame by toggle switch, remaining
Split screen device is slave；The processor module of each split screen device is respectively connected with CAN communication module, realizes principal and subordinate's CAN communication, passes through
Main frame connects split screen button and is allocated control, to realize that the synchronous split screen switching of each split screen device is shown.
The third aspect, present invention also offers a kind of split screen switching method.
Display module is set multiple interfaces by the split screen switching method by processor module, and is carried out by split screen button
Split screen switching display.
Further, the display module is communicated with processor module using parallel schema, and the LCM of display module is hung
It is connected in the bus of processor module, i.e. the RS ends, R/W ends and ENAB of the corresponding I/O port of processor module respectively with display module
End is connected, and remaining corresponding I/O port of processor module is connected with the DB0-DB7 ends of display module respectively.
Further, the processor module is suitable to switch corresponding flag bit by split screen button to select corresponding interface,
And the interface is four, that is, set No. 1 interface of the correspondence of flag bit 00；Set No. 2 interfaces of the correspondence of flag bit 01；Set flag bit
10 No. 3 interfaces of correspondence；And No. 4 interfaces of the setting correspondence of flag bit 11.
Fourth aspect, present invention also offers a kind of method of work of combination of liquid crystals display screen.
The method of work of the combination of liquid crystals display screen, i.e., combined by the split screen device described in several and constituted；It is described
Split screen device is provided with toggle switch, sets a split screen device to be main frame by toggle switch, and remaining split screen device is slave；Each point
The processor module of screen device is respectively connected with CAN communication module, realizes principal and subordinate's CAN communication, and connecting split screen button by main frame enters
Row distribution control, to realize that the synchronous split screen switching of each split screen device is shown.
The beneficial effects of the invention are as follows split screen device, combination of liquid crystals display screen and its method of work of the invention pass through list
Piece machine realizes the switching control in turn of multi-screen, and this programme uses single-chip microcomputer, with simple in construction, the advantage of good reliability.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the circuit theory diagrams of the split screen device of the present invention；
Fig. 2 is the split screen control software flow chart of the present invention.
Fig. 3 is the schematic block circuit diagram of the combination of liquid crystals display screen of the present invention.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
As shown in figure 1, the present embodiment 1 provides a kind of split screen device, including：Processor module, with the processor module
Connected display module；Wherein described processor module is suitable to display module setting multiple interfaces, and is entered by split screen button
The switching display of row split screen.
Wherein described processor module such as, but not limited to uses AT89S51 single-chip microcomputers, and the display module is for example but not
It is limited to use Liquid Crystal Module TS1620-1.
TS1620-1 is to arrange several 5*7 dot characters on character type display module, liquid crystal board to show position, Mei Gexian
Show that position can show a character.Interface has two rows, and often row can show 16 characters.There are 192 kinds of kinds of characters in internal memory,
Such as English upper and lower case letter, numeral and mark etc. can show different characters according to different code displayings.
There are 14 lead ends on TS1620-1 PCB, wherein 8 data lines, 3 control lines, 3 power lines, refer to table
1.When being connected with 89S51, display mode and display content can be elected by sending into data and instruction.
The TS1620-1 pins of table 1 are defined
The display module is communicated with processor module using parallel schema, and by the LCM of display module, (LCD is shown
Driving interface) be articulated in the bus of processor module, i.e., the corresponding I/O port of processor module RS ends respectively with display module,
R/W ends are connected with ENAB ends, and remaining corresponding I/O port of processor module is connected with the DB0-DB7 ends of display module respectively.
Communicated specifically, TS1620-1 is realized with 89S51 in parallel mode, LCM is articulated in 89S51 bus in design
On, RS, R/W, ENAB are controlled respectively using P2.4, P2.5, P2.6 of single-chip microcomputer, LCM data wire DB0-DB7 and single-chip microcomputer
P0-P7 be connected.Interface circuit figure is shown in Fig. 1.RS and R/W determines mask register number and operation species in TS1620-1.RS=
0, R/W=0, complete command register write-in；RS=0, R/W=1, complete busy mark and address counter is read；RS=1, R/W
=0, complete data register write-in；RS=1, R/W=1, complete data register and read, and ENAB is enable signal port, under
The triggering of drop edge.
As shown in Fig. 2 the processor module is suitable to switch corresponding flag bit to select corresponding boundary by split screen button
Face, namely each page have the fixed signal position of oneself.When performing liquid crystal display program, liquid crystal indicating is first determined whether
The state of will position, the corresponding page is shown according to flag bit, and the optional interface is four, that is, sets the correspondence of flag bit 00 1
Number interface；Set No. 2 interfaces of the correspondence of flag bit 01；Set No. 3 interfaces of the correspondence of flag bit 10；And setting flag bit 11 correspondence 4
Number interface.
The split screen button can be using four buttons, as shown in figure 1, button K1-K4, completes the switching work(of manual split screen
Can, K1 buttons are pressed, No. 1 interface display is switched to, K2 is pressed and shows No. 2 interface contents, by that analogy, physical circuit is shown in attached
Figure.
Also, the processor module is also provided with communication interface with pc (P1.4 and P1.5), upper to connect
Machine control signal, can realize split screen control by host computer.
Well-behaved screen device can be conveniently accomplished the switching (namely split screen) of screen, while devising manually and automatically work(
Energy.
In hardware circuit design, TS1620-1 data wire is directly articulated on P0 ports and utilizes P2 mouthfuls of controls of single-chip microcomputer
Tri- ports of its RS, R/W, ENAB are made, it is convenient, flexibly, bus resource is saved, whole circuit is practical, succinct, and reliability is high.
In software split screen method, the interface of display is judged using the mode of flag bit is set, split screen display available is completed and makes whole
Program has clearly logicality.
The anti-interference use watchdog chip of well-behaved screen device, i.e. door dog chip X25045 ensure that system is normally transported
OK, if there is operation troubles, then system forced resetting.
Embodiment 2
As shown in figure 3, on the basis of embodiment 1, the present embodiment 2 provides a kind of combination of liquid crystals display screen.
The combination of liquid crystals display screen is made up of several split screen device combinations as described in Example 1, will be each point
Spliced with each display module in device, to form combination of liquid crystals display screen.
The split screen device is provided with toggle switch, sets a split screen device to be main frame, remaining split screen dress by toggle switch
It is set to slave；The processor module of each split screen device is respectively connected with CAN communication module, realizes principal and subordinate's CAN communication, passes through main frame institute
Even split screen button is allocated control, to realize that the synchronous split screen switching of each split screen device is shown.
The CAN communication module is such as, but not limited to using Risym MCP2515.
It is applied in combination by well-behaved screen device, using well-behaved screen device advantage simple in construction, group is reduced on the whole
Close the fault rate of LCDs.
Embodiment 3
As depicted in figs. 1 and 2, on the basis of embodiment 1, the present embodiment 3 provides a kind of split screen switching method.
Display module is set multiple interfaces by the split screen switching method by processor module, and is carried out by split screen button
Split screen switching display.
The display module is communicated with processor module using parallel schema, and the LCM of display module is articulated in into place
Manage device module bus on, i.e., the corresponding I/O port of processor module respectively with the RS ends of display module, R/W ends and ENAB ends phase
Connect, and remaining corresponding I/O port of processor module is connected with the DB0-DB7 ends of display module respectively.
The processor module is suitable to switch corresponding flag bit to select corresponding interface, and the boundary by split screen button
Face is four, that is, sets No. 1 interface of the correspondence of flag bit 00；Set No. 2 interfaces of the correspondence of flag bit 01；Set the correspondence of flag bit 10 3
Number interface；And No. 4 interfaces of the setting correspondence of flag bit 11.
Specifically, in the present embodiment 3 on processor module software design patterns flow such as Fig. 2 and embodiment 1 mutually inside the Pass
Hold described.
Embodiment 4
As shown in figure 3, on the basis of embodiment 2, the present embodiment 4 provides a kind of work side of combination of liquid crystals display screen
Method.
The method of work of the combination of liquid crystals display screen combines structure by several split screen devices as described in Example 1
Into；The split screen device be provided with toggle switch, by toggle switch set a split screen device be main frame, remaining split screen device be from
Machine；The processor module of each split screen device is respectively connected with CAN communication module, realizes principal and subordinate's CAN communication, connects split screen by main frame
Button is allocated control, to realize that the synchronous split screen switching of each split screen device is shown.
Specifically, the working method in the present embodiment 4 on modules such as processor modules is shown in embodiment 1 and the phase of embodiment 2
Hold inside the Pass described.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (9)
1. a kind of split screen device, it is characterised in that including：
Processor module, the display module being connected with the processor module；Wherein
The processor module is suitable to display module setting multiple interfaces, and carries out split screen switching display by split screen button.
2. split screen device according to claim 1, it is characterised in that
The display module is communicated with processor module using parallel schema, and the LCM of display module is articulated in into processor
In the bus of module, i.e.,
The corresponding I/O port of processor module is connected with the RS ends, R/W ends and ENAB ends of display module respectively, and
The corresponding I/O port of remaining of processor module is connected with the DB0-DB7 ends of display module respectively.
3. split screen device according to claim 2, it is characterised in that
The processor module is suitable to switch corresponding flag bit by split screen button to select corresponding interface, and the interface is
Four, i.e.,
Set No. 1 interface of the correspondence of flag bit 00；
Set No. 2 interfaces of the correspondence of flag bit 01；
Set No. 3 interfaces of the correspondence of flag bit 10；And
Set No. 4 interfaces of the correspondence of flag bit 11.
4. a kind of combination of liquid crystals display screen, it is characterised in that
It is made up of several split screen device combinations as claimed in claim 1, i.e.,
Each display module in each distributor is spliced, to form combination of liquid crystals display screen.
5. combination of liquid crystals display screen according to claim 4, it is characterised in that
The split screen device is provided with toggle switch, sets a split screen device to be main frame by toggle switch, and remaining split screen device is
Slave；
The processor module of each split screen device is respectively connected with CAN communication module, realizes principal and subordinate's CAN communication,
Split screen button is connected by main frame and is allocated control, to realize that the synchronous split screen switching of each split screen device is shown.
6. a kind of split screen switching method, it is characterised in that
Display module is set into multiple interfaces by processor module, and split screen switching is carried out by split screen button and is shown.
7. the split screen switching method described in as requested 6, it is characterised in that
The display module is communicated with processor module using parallel schema, and the LCM of display module is articulated in into processor
In the bus of module, i.e.,
The corresponding I/O port of processor module is connected with the RS ends, R/W ends and ENAB ends of display module respectively, and
The corresponding I/O port of remaining of processor module is connected with the DB0-DB7 ends of display module respectively.
8. the split screen switching method described in as requested 7, it is characterised in that
The processor module is suitable to switch corresponding flag bit by split screen button to select corresponding interface, and the interface is
Four, i.e.,
Set No. 1 interface of the correspondence of flag bit 00；
Set No. 2 interfaces of the correspondence of flag bit 01；
Set No. 3 interfaces of the correspondence of flag bit 10；And
Set No. 4 interfaces of the correspondence of flag bit 11.
9. a kind of method of work of combination of liquid crystals display screen, it is characterised in that
It is made up of several split screen device combinations as claimed in claim 1；
The split screen device is provided with toggle switch, sets a split screen device to be main frame by toggle switch, and remaining split screen device is
Slave；
The processor module of each split screen device is respectively connected with CAN communication module, realizes principal and subordinate's CAN communication,
Split screen button is connected by main frame and is allocated control, to realize that the synchronous split screen switching of each split screen device is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454494.4A CN107316573A (en) | 2017-06-15 | 2017-06-15 | Split screen device, combination of liquid crystals display screen and its method of work under single-chip microcomputer control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454494.4A CN107316573A (en) | 2017-06-15 | 2017-06-15 | Split screen device, combination of liquid crystals display screen and its method of work under single-chip microcomputer control |
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Family
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|---|---|---|---|
| CN201710454494.4A Pending CN107316573A (en) | 2017-06-15 | 2017-06-15 | Split screen device, combination of liquid crystals display screen and its method of work under single-chip microcomputer control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958587A (en) * | 2018-07-06 | 2018-12-07 | Oppo广东移动通信有限公司 | split screen processing method, device, storage medium and electronic equipment |
| CN111968593A (en) * | 2020-09-08 | 2020-11-20 | 河源思比电子有限公司 | Split-screen display driving method of ultra-clear liquid crystal module |
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