CN107784984A - A kind of design of liquid crystal display - Google Patents
A kind of design of liquid crystal display Download PDFInfo
- Publication number
- CN107784984A CN107784984A CN201610747313.2A CN201610747313A CN107784984A CN 107784984 A CN107784984 A CN 107784984A CN 201610747313 A CN201610747313 A CN 201610747313A CN 107784984 A CN107784984 A CN 107784984A
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- liquid crystal
- design
- crystal display
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- character
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention relates to a kind of design of liquid crystal display, the present invention is mainly described using AT89S52 single-chip microcomputers as control device, AMPIRE128*64 liquid crystal displays are display device, and a liquid crystal display that can show static Chinese character, dynamic Chinese character, character, picture and the simple animation formed by multiple pictures of realization designs.Related parameter values of the invention by setting PCtoLCD2002 modulus software and side side matrix withdraw software, Chinese character, character, the graphic program of the extraction such as instruction catalogue and programming further according to AMPIRE128*64LCD are sent to liquid crystal display and shown, and some flexible Dynamic Announce conversion can be done, lift display effect.The present invention carries out Software for Design under KEIL softwares, using C language, and C language represents the program language of instruction using memonic symbol, symbol and numeral etc., it is readily appreciated that and memory and versatile, design is convenient.
Description
Technical field
Patent of the present invention is related to singlechip technology field, and in particular to a kind of design of liquid crystal display.
Background technology
With the development of society, increasing place needs to apply display function, for example, in various digital display instruments
Display, advertisement screen, digital product etc..Traditional numeral method far can not meet the needs of all trades and professions.It is based on
Single-chip microcomputer LCD show be it is a kind of with single-chip microcomputer come the display system that controls, it can not only show various numerals, letter, moreover it is possible to aobvious
Show the Chinese character and some simple images and animation of various fonts, it is extremely convenient to use, as long as by being write to single-chip microcomputer
Enter certain program to control LCD display to complete, different-effect is produced to meet various need according to the difference of program
Ask.
The design uses AT89S52 analog simulations, and substantially requirement is：Design 12864 liquid crystal displays and the display of single-chip microcomputer
Interface circuit, show simple static state/dynamic Chinese character, picture and the simple animation being made up of multiple pictures.
Patent of invention content
Patent of the present invention is related to a kind of design of liquid crystal display, and the present invention is main to be described using AT89S52 single-chip microcomputers as control
Control equipment, AMPIRE128*64 liquid crystal displays are display device, one of realization can show static Chinese character, dynamic Chinese character,
The liquid crystal display design of character, picture and the simple animation formed by multiple pictures.The present invention is by setting PCtoLCD2002
The related parameter values of modulus software and side side matrix withdraw software, set further according to AMPIRE128*64LCD instruction catalogue and program
Chinese character, character, the graphic program of the extraction such as meter are sent to liquid crystal display and shown, and can do some flexible Dynamic Announces
Conversion, lift display effect.The present invention carries out Software for Design under KEIL softwares, using C language, and C language uses mnemonic(al)
Symbol, symbol and numeral etc. represent the program language of instruction, it is readily appreciated that and memory and versatile, design is convenient.
Brief description of the drawings
Fig. 1：Overall design block diagram.
Fig. 2：+ 5v DC circuit figures.
Embodiment
In order that the object, technical solution and advantage of patent of the present invention are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, patent of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
Patent of the present invention, is not intended to limit the present invention patent.
Patent of the present invention is related to a kind of design of liquid crystal display, and the present invention is main to be described using AT89S52 single-chip microcomputers as control
Control equipment, AMPIRE128*64 liquid crystal displays are display device, one of realization can show static Chinese character, dynamic Chinese character,
The liquid crystal display design of character, picture and the simple animation formed by multiple pictures.The present invention is by setting PCtoLCD2002
The related parameter values of modulus software and side side matrix withdraw software, set further according to AMPIRE128*64LCD instruction catalogue and program
Chinese character, character, the graphic program of the extraction such as meter are sent to liquid crystal display and shown, and can do some flexible Dynamic Announces
Conversion, lift display effect.The present invention carries out Software for Design under KEIL softwares, using C language, and C language uses mnemonic(al)
Symbol, symbol and numeral etc. represent the program language of instruction, it is readily appreciated that and memory and versatile, design is convenient.
Further, this design control system is by AT89S52 singlechip chips, LCD display circuit, power circuit, reset
Circuit, crystal oscillating circuit composition.Overall design block diagram is as shown in Figure 1.
Further, 220v voltages are changed into+5v electricity by power supply used in single-chip microcomputer here according to design is actually needed
Pressure.As shown in Fig. 2 using bridge rectifier by 220v voltage step-down rectifications, then by capacitor filtering, LM7805 voltage stabilizings electricity
Road, finally switch to+5v DC voltages.Voltage-regulator diode VD3 effect has two：One is to reduce integrated stable voltage circuit 7805
(U1) input voltage；Second, when preventing that bus from powering off, stored charge discharges to bus on electric capacity C5.Electric capacity C8, C9 are
Filter capacitor, 7805 be+5V integrated stable voltage circuit, and C10, C11 are decoupling capacitors, and light emitting diode VD4 is power supply indicator,
R13 is VD4 current-limiting resistance.
Further, there is one to be used to forming the high-gain sign-changing amplifier of oscillator inside single-chip microcomputer, pin XTAL1 and
XTAL2 is the input and output end of this amplification appliance respectively, and during due to using internal type, circuit is simple, when resulting
Clock signal is more stable, frequently with this mode in actual use.
Further, single-chip microcomputer is required for first resetting in startup optimization, and its effect is to make its in CPU and system
He starts working at part all in an original state determined, and from this state.MCS-51 series monolithics in itself, one
As can not be resetted automatically, it is necessary to coordinate corresponding external circuit to realize.The effect of reset circuit is exactly to make single-chip microcomputer
Reset state is carried out when can reset or run error when upper electric.
Further, the system uses LCD MODULE AMPIRE128X64, is monochromatic LCD.Screen dimidiation control
System, controlling switch is CS1 and CS2, and data are inputted by shift register.Pin has 18 altogether.The left half screen chip select terminals of CS1, CS2
Right half screen chip select terminal；VCC, GND are exactly VCC, GND, and what does not have all right；V0 liquid crystal driving voltages, the emulation looked on the net
For this pin having in example with regard to hanging, I is to be connected to VCC by a potentiometer；RS data command selection signals, H are data, L
To instruct, D/I is also in some data, my estimation is the abbreviation of the two words of DATA and INSTRUCTIONS；R/W read-write choosings
Signal is selected, H is reads, and for L to write, this is READ and WRITE abbreviation certainly.E is LCD Enable Pins, and when R/W is L, E signals decline
Along latch DB7-DB0；When R/W is H, E H, DDRAM data read DB7-DB0, and place can be grounded if only writing and not reading
Reason.DB0-DB7 data transmission ports.RST reset signals, but what is it about not coming to understand also, it is followed by with reference to some data
VCC processing.
- VOUT estimates and V0 is similar, liquid crystal driving voltage.
Further, SCM Based 12864 liquid crystal display Software for Design mainly by display subroutine, reading and is handled
12864LCD shows the composition such as program.In order to give full play to the superior ratios of performance to price of AT89S52, system software uses C language
Write the real-time with strengthening system.Try one's best in design and accomplish hardware " softening ", 12864LCD programs are as follows：
The preferred embodiment of patent of the present invention is the foregoing is only, is not intended to limit the invention patent, it is all at this
All any modification, equivalent and improvement made within the spirit and principle of patent of invention etc., should be included in patent of the present invention
Protection domain within.
Claims (3)
1. a kind of design of liquid crystal display, it is characterised in that patent of the present invention is related to a kind of design of liquid crystal display, and the present invention is main
Describe using AT89S52 single-chip microcomputers as control device, AMPIRE128*64 liquid crystal displays are display device, one of realization
It can show that the liquid crystal display of static Chinese character, dynamic Chinese character, character, picture and the simple animation formed by multiple pictures is set
Meter.
2. the design of a kind of liquid crystal display according to claim 1, it is characterised in that the present invention passes through setting
The related parameter values of PCtoLCD2002 modulus software and side side matrix withdraw software, further according to AMPIRE128*64LCD instruction
Chinese character, character, the graphic program of the extraction such as table and programming are sent to liquid crystal display and shown, and it is flexible to do some
Dynamic Announce conversion, lifted display effect.
3. the design of a kind of liquid crystal display according to claim 1, it is characterised in that the present invention adopts under KEIL softwares
It is that C language carries out Software for Design, C language represents the program language of instruction using memonic symbol, symbol and numeral etc., holds
Readily understood and memory and versatile, design convenience.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747313.2A CN107784984A (en) | 2016-08-30 | 2016-08-30 | A kind of design of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747313.2A CN107784984A (en) | 2016-08-30 | 2016-08-30 | A kind of design of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107784984A true CN107784984A (en) | 2018-03-09 |
Family
ID=61441357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610747313.2A Pending CN107784984A (en) | 2016-08-30 | 2016-08-30 | A kind of design of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107784984A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030491A (en) * | 1987-07-07 | 1989-01-18 | 中文电脑有限公司 | Improvement of Chinese characters or other oriental language characters or graphics displays and related devices |
| CN2870068Y (en) * | 2005-09-13 | 2007-02-14 | 南京师范大学 | Universal LCD Chinese character display module |
| CN202976028U (en) * | 2012-12-20 | 2013-06-05 | 中国矿业大学 | Touch screen input light emitting diode (LED) Chinese character display system |
| CN104883417A (en) * | 2015-06-15 | 2015-09-02 | 中冶华天南京电气工程技术有限公司 | Voice terminal system based on single-chip microcomputer |
-
2016
- 2016-08-30 CN CN201610747313.2A patent/CN107784984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030491A (en) * | 1987-07-07 | 1989-01-18 | 中文电脑有限公司 | Improvement of Chinese characters or other oriental language characters or graphics displays and related devices |
| CN2870068Y (en) * | 2005-09-13 | 2007-02-14 | 南京师范大学 | Universal LCD Chinese character display module |
| CN202976028U (en) * | 2012-12-20 | 2013-06-05 | 中国矿业大学 | Touch screen input light emitting diode (LED) Chinese character display system |
| CN104883417A (en) * | 2015-06-15 | 2015-09-02 | 中冶华天南京电气工程技术有限公司 | Voice terminal system based on single-chip microcomputer |
Non-Patent Citations (1)
| Title |
|---|
| 赵广元: "《Proteus辅助的单片机原理实践—基础设计、课程设计和毕业设计》", 30 September 2013 * |
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Application publication date: 20180309 |