CN107608271A - A kind of cutting process for liquid crystal display screen - Google Patents
A kind of cutting process for liquid crystal display screen Download PDFInfo
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- CN107608271A CN107608271A CN201710943354.3A CN201710943354A CN107608271A CN 107608271 A CN107608271 A CN 107608271A CN 201710943354 A CN201710943354 A CN 201710943354A CN 107608271 A CN107608271 A CN 107608271A
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Abstract
The present invention relates to display screen technology field; more particularly to a kind of cutting process for liquid crystal display screen; cutting technique uses the ARM and FPGA control mode being combined, and overall system control circuit is divided into ARM control cores element circuit, fpga logic control unit circuit, liquid crystal display circuit, rotary encoder input circuit, external memory circuit, clock circuit, protection circuit, external feedback circuit and resonant switching power change-over circuit；After control system is powered, system automatically resets, different states is selected by rotary encoder, sent and instructed to FPGA by ARM, main relay and surge relay are opened successively according to instruction, and realize and the LCDs starter to be processed is operated, after setting meets the parameter of processing request, ARM sends pulsewidth and frequency data FPGA, it is determined that open and close the IGBT times, when ARM sends luminous command operating to FPGA, FPGA is performed according to pulsewidth and frequency and is opened and closed IGBT, so as to realize the opening and closing operation to LCDs.
Description
Technical field
The present invention relates to display screen technology field, and in particular to a kind of cutting process for liquid crystal display screen.
Background technology
LCDs (LCD) is used for a kind of type of display of numeric type clock and watch and many portable computers.LCD shows
Show and used two panels polarization material, be liquid crystal solution between them.Electric current during the liquid by that can be such that crystal arranges again
Row, so that light can not pass through them.Therefore, each crystal can allow light to be obstructed the light through and can just as shutter.
Scientific and technological information product all develops liquid crystal display (LCD) towards light, thin, short, small target at present, possesses in computer periphery
The display product of long history is certainly no exception.It is being easy to carry with carrying as under preceding topic, traditional display mode is such as
CRT crt displays and LED display board etc., are all limited by that volume is excessive or very huge etc. factor of power consumption, and can not reach makes
The actual demand of user.And the development of lcd technology just suits the trend of current information products, either right angle show,
The advantages that low power consumption, small volume or zero radiation, user can be allowed to enjoy optimal visual environment.Trace liquid crystal
Show the source of device, it is necessary to first since being said the birth of " liquid crystal ".1888 Christian eras, an Austrian botanist was luxuriant and rich with fragrance
The strong Lai Nize (FriedrichReinitzer) of moral are found that a kind of special material.He extracts one kind from plant and is referred to as
The compound of helicity toluene hydrochlorate, when doing Heating Experiment for this compound, it is found surprisingly that such a compound has two
The fusing point of individual different temperatures.And its state is between our general known liquid and solid matter, somewhat similar fertilizer
The colloidal solution of soap water, but it has liquid in a certain temperature range and crystallizes the material of both sides' property, also due to its is only
It, was just named as " LiquidCrystal " later, and was exactly the meaning of liquid crystals material by special state.But, although liquid crystal
Just it was found early in 1888, but is the thing after 80 years during articles for use of the real practicality arround life.In patent
Number for CN201410692332 patent document in, disclose a kind of diced system, including feed mechanism, cutting mechanism and blanking
Mechanism.Cutting mechanism includes drive device and cutter device, and cutter device is connected with drive device, and cutter device is provided with charging
Mouthful；Feed mechanism is located at the both sides of cutter device with cutting agency respectively, and includes frame and transmission track, transmission track
Including roller and rotating wheel, rotating wheel is located at the end of roller；The transmission track of feed mechanism and the transmission track of cutting agency
Line and charging aperture centerline parallel.When workpiece to be cut is placed on the transmission track of feed mechanism, rotating wheel drives
Roller rotates, and due to frictional force between roller and workpiece be present, with the rotation of roller, workpiece enters cutting machine through charging aperture
Structure, drive device driving cutter device complete the cutting process of workpiece, and the workpiece cut falls into the transmission track of cutting agency
On, with the rotation of roller, the workpiece cut is sent out.Above-mentioned diced system can realize automatic loading/unloading, cutting
Efficiency high.
Above-mentioned patent document can realize automatic loading/unloading, and cutting efficiency is high, but for how to provide a kind of structure letter
It is single, simple operation, realize that intelligent and remote control cutting process for liquid crystal display screen lacks technical solution.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, the invention provides a kind of cutting process for liquid crystal display screen, for solving how to carry
For a kind of simple in construction, simple operation, the problem of realizing intelligent and remote control cutting process for liquid crystal display screen.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of cutting process for liquid crystal display screen, it is characterised in that：The cutting technique is combined using ARM's and FPGA
Control mode, overall system control circuit are divided into ARM control cores element circuit, fpga logic control unit circuit, liquid crystal
Show circuit, rotary encoder input circuit, external memory circuit, clock circuit, protection circuit, external feedback circuit and resonance
Switching Power Supply change-over circuit；After control system is powered, system automatically resets, and different states is selected by rotary encoder, i.e.,
Option, counting, time, programming and loading, sent and instructed to FPGA by ARM, main relay and wave are opened successively according to instruction
Relay is gushed, and realizes and the LCDs starter to be processed is operated, after setting meets the parameter of processing request, ARM
Pulsewidth and frequency data FPGA are sent, it is determined that the IGBT times are opened and closed, when ARM sends luminous command operating to FPGA
Wait, FPGA is performed according to pulsewidth and frequency and opened and closed IGBT, so as to realize the opening and closing operation to LCDs.
Preferably, in addition to ethernet circuit, the ethernet circuit include optical transmitting set, optical receiver and built-in pair
The machine box of work SC connectors, transmitter include a 1300nm laser for meeting GE LX specifications, it be by one customization,
The bipolar IC drivings of silicon, difference PECL logical signals are transformed to laser diode analog drive signal, receiver contains one
InP-PID photodiodes, it and a silicon bipolar transconductance type preamplifier IC customized are installed together, and are connected to
Post amplifier and digitizer, the signal deteching circuit set in post amplifier, once detect useful optical signal
A PECL logic high signal is provided with, this single-ended PECL output passes through a load driving standard PECL outputs.
Preferably, in addition to position detecting circuit, the position detecting circuit use infrared receiving/transmission sensor, a transmitting
Pipe launches infrared ray and a reception head receiving infrared-ray signal.
Preferably, infrared transmitting tube and the installation of reception pipe correlation, infrared transmitting tube and reception pipe are reached when there is barrier
When middle, different low and high levels can be produced, single-chip microcomputer gathers this signal, controls the on off state of lamp, infrared transmitting tube and connects
Closed tube eliminates the interference in the external world by the way of shielding, can prevent in cutting process, personnel touch and damaged by mistake.
Preferably, the FPGA major functions include the frequency dividing of high frequency clock, the gating control of analog switch, encoder arteries and veins
The transmission of the detection of punching, external feedback and data.
Preferably, during cutting, it is necessary to the digital output modul such as phase shortage, water temperature, light extraction, hydraulic pressure signal and it is main after
Electrical equipment, surge relay, output signal, normal condition, the optocoupler such as starter of four xenon lamps are conductings, and feedback delivers to FPGA's
Signal is low level；When breaking down, optocoupler cut-off, the signal that feedback delivers to FPGA is high level, at this time system
Buzzer warning.
(3) beneficial effect
The invention provides one kind.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the block diagram of the overall system control circuit of the present invention；
Fig. 2 is the position detecting circuit schematic diagram of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
A kind of cutting process for liquid crystal display screen, cutting technique use the ARM and FPGA control mode being combined, such as Fig. 1
Shown overall system control circuit is divided into ARM control cores element circuit, fpga logic control unit circuit, liquid crystal display electricity
Road, rotary encoder input circuit, external memory circuit, clock circuit, protection circuit, external feedback circuit and resonant switch
Power-switching circuit；After control system is powered, system automatically resets, and selects different states by rotary encoder, i.e., option,
Counting, time, programming and loading, sent and instructed to FPGA by ARM, main relay and surge relay are opened successively according to instruction
Device, and realize and the LCDs starter to be processed is operated, after setting meets the parameter of processing request, ARM sends arteries and veins
Wide and frequency data FPGA, it is determined that the IGBT times are opened and closed, when ARM sends luminous command operating to FPGA,
FPGA is performed according to pulsewidth and frequency and is opened and closed IGBT, so as to realize the opening and closing operation to LCDs.
Preferably, in addition to ethernet circuit, ethernet circuit include optical transmitting set, optical receiver and built-in duplexing SC
The machine box of connector, transmitter include a 1300nm laser for meeting GE LX specifications, and it is double by a customization, silicon
Pole IC drivings, difference PECL logical signals are transformed to laser diode analog drive signal, receiver contain an InP-
PID photodiodes, it and a silicon bipolar transconductance type preamplifier IC customized are installed together, and are put after being connected to
Big device and digitizer, the signal deteching circuit set in post amplifier, once detect that useful optical signal is provided with
One PECL logic high signal, this single-ended PECL output pass through a load driving standard PECL outputs.
Also include position detecting circuit, position detecting circuit as shown in Figure 2 uses infrared receiving/transmission sensor, a transmitting
Pipe launches infrared ray and a reception head receiving infrared-ray signal.
Infrared transmitting tube and the installation of reception pipe correlation, when there is barrier to reach among infrared transmitting tube and reception pipe,
Different low and high levels can be produced, single-chip microcomputer gathers this signal, controls the on off state of lamp, and infrared transmitting tube and reception pipe use
The mode of shielding come eliminate the external world interference, can prevent in cutting process, personnel touch and damaged by mistake.
The gating control of the frequency dividing, analog switch of FPGA major functions including high frequency clock, encoder pulse detect, outside
Portion feeds back and the transmission of data.
During cutting, it is necessary to the digital output modul such as phase shortage, water temperature, light extraction, hydraulic pressure signal and main relay, wave
The output signals such as the starter of relay, four xenon lamps, normal condition are gushed, optocoupler is conducting, and the signal that feedback delivers to FPGA is
Low level；When breaking down, optocoupler cut-off, the signal that feedback delivers to FPGA is high level, at this time system beep device
Alarm.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
- A kind of 1. cutting process for liquid crystal display screen, it is characterised in that：The cutting technique uses the ARM and FPGA control being combined Mode processed, overall system control circuit are divided into ARM control cores element circuit, fpga logic control unit circuit, liquid crystal display Circuit, rotary encoder input circuit, external memory circuit, clock circuit, protection circuit, external feedback circuit and resonance are opened Powered-down power-switching circuit；After control system is powered, system is automatically reset, and different states is selected by rotary encoder, that is, is selected Item, counting, time, programming and loading, sent and instructed to FPGA by ARM, main relay and surge are opened successively according to instruction Relay, and realize and the LCDs starter to be processed is operated, after setting meets the parameter of processing request, ARM hairs Pulsewidth and frequency data FPGA are sent, it is determined that the IGBT times are opened and closed, when ARM sends luminous command operating to FPGA Wait, FPGA is performed according to pulsewidth and frequency and opened and closed IGBT, so as to realize the opening and closing operation to LCDs.
- 2. cutting process for liquid crystal display screen according to claim 1, it is characterised in that：Also include ethernet circuit, it is described Ethernet circuit includes the machine box of optical transmitting set, optical receiver and built-in duplexing SC connectors, and transmitter meets comprising one The 1300nm lasers of GE LX specifications, it is driven by customization, the bipolar IC of silicon, and difference PECL logical signals are become Be changed to laser diode analog drive signal, receiver contains InP-PID photodiode, it with one customization silicon Bipolar transconductance type preamplifier IC is installed together, and is connected to post amplifier and digitizer, in post amplifier The signal deteching circuit of setting, once detecting that useful optical signal is provided with a PECL logic high signal, this is single-ended PECL outputs pass through a load driving standard PECL outputs.
- 3. cutting process for liquid crystal display screen according to claim 1, it is characterised in that：Also include position detecting circuit, institute State position detecting circuit and use infrared receiving/transmission sensor, a transmitting tube transmitting infrared ray and one receive head receiving infrared-ray letter Number.
- 4. cutting process for liquid crystal display screen according to claim 3, it is characterised in that：Infrared transmitting tube and reception pipe are to penetrating Formula is installed, and when there is barrier to reach among infrared transmitting tube and reception pipe, can produce different low and high levels, single-chip microcomputer collection This signal, the on off state of lamp, infrared transmitting tube and reception pipe are controlled by the way of shielding to eliminate the interference in the external world, can be prevented Only in cutting process, personnel touch and damaged by mistake.
- 5. cutting process for liquid crystal display screen according to claim 1, it is characterised in that：The FPGA major functions include height The transmission for gating control, the detection of encoder pulse, external feedback and data of the frequency dividing, analog switch of frequency clock.
- 6. cutting process for liquid crystal display screen according to claim 1, it is characterised in that：It is during cutting, it is necessary to right The output such as starter of the digital output modul such as phase shortage, water temperature, light extraction, hydraulic pressure signal and main relay, surge relay, four xenon lamps Signal, normal condition, optocoupler are conductings, and the signal that feedback delivers to FPGA is low level；When breaking down, optocoupler is cut Only, the signal that feedback delivers to FPGA is high level, and at this time system beep device is alarmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710943354.3A CN107608271A (en) | 2017-10-11 | 2017-10-11 | A kind of cutting process for liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710943354.3A CN107608271A (en) | 2017-10-11 | 2017-10-11 | A kind of cutting process for liquid crystal display screen |
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| Publication Number | Publication Date |
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| CN107608271A true CN107608271A (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710943354.3A Pending CN107608271A (en) | 2017-10-11 | 2017-10-11 | A kind of cutting process for liquid crystal display screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727216A (en) * | 2019-09-23 | 2020-01-24 | 重庆智能机器人研究院 | Data reading method and device of encoder and data reading device |
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| CN201303454Y (en) * | 2008-10-22 | 2009-09-02 | 陈玉东 | Single lamp driving circuit of high voltage board |
| CN102749883A (en) * | 2011-04-21 | 2012-10-24 | 武汉奥特先锋数控技术有限公司 | Control system for numerical control cutting machine |
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| CN106896536A (en) * | 2017-01-24 | 2017-06-27 | 北海星沅电子科技有限公司 | A kind of liquid crystal display panel cutting method |
| CN206318876U (en) * | 2016-12-28 | 2017-07-11 | 株洲晶彩电子科技有限公司 | A kind of special-shaped liquid crystal glass base marking-out cutter |
| CN107102465A (en) * | 2017-06-20 | 2017-08-29 | 合肥市惠科精密模具有限公司 | A kind of liquid crystal display cutting technique |
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2017
- 2017-10-11 CN CN201710943354.3A patent/CN107608271A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303454Y (en) * | 2008-10-22 | 2009-09-02 | 陈玉东 | Single lamp driving circuit of high voltage board |
| CN102749883A (en) * | 2011-04-21 | 2012-10-24 | 武汉奥特先锋数控技术有限公司 | Control system for numerical control cutting machine |
| CN103708713A (en) * | 2013-12-26 | 2014-04-09 | 深圳市华星光电技术有限公司 | Clamping mechanism, liquid crystal panel cutting machine and liquid crystal panel cutting process |
| CN206318876U (en) * | 2016-12-28 | 2017-07-11 | 株洲晶彩电子科技有限公司 | A kind of special-shaped liquid crystal glass base marking-out cutter |
| CN106896536A (en) * | 2017-01-24 | 2017-06-27 | 北海星沅电子科技有限公司 | A kind of liquid crystal display panel cutting method |
| CN107102465A (en) * | 2017-06-20 | 2017-08-29 | 合肥市惠科精密模具有限公司 | A kind of liquid crystal display cutting technique |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727216A (en) * | 2019-09-23 | 2020-01-24 | 重庆智能机器人研究院 | Data reading method and device of encoder and data reading device |
| CN110727216B (en) * | 2019-09-23 | 2022-04-29 | 重庆智能机器人研究院 | Data reading method and device of encoder and data reading device |
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Application publication date: 20180119 |
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