CN108364596A - A kind of LCD/LCM multichannels universal driver - Google Patents
A kind of LCD/LCM multichannels universal driver Download PDFInfo
- Publication number
- CN108364596A CN108364596A CN201810153509.8A CN201810153509A CN108364596A CN 108364596 A CN108364596 A CN 108364596A CN 201810153509 A CN201810153509 A CN 201810153509A CN 108364596 A CN108364596 A CN 108364596A
- Authority
- CN
- China
- Prior art keywords
- lcd
- drivers
- main control
- lcm
- control singlechip
- 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.)
- Pending
Links
Classifications
-
- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The invention discloses a kind of LCD/LCM multichannels universal drivers, including main control singlechip, LCD IC general drivings CPU, level translator, RS485 drivers, high precision electro flow table, electronic switch, key-press input optical coupling isolation circuit, RS485 buses, main control singlechip are connect with level translator；Electronic switch and main control singlechip, electricity is powered on and goes for realizing product, electronic switch is connected with high precision electro flow table, microcontroller is connected with RS485 drivers, the output-parallel of ammeter RS485 output ends and RS485 drivers is to RS485 buses, and for the two-way communication of AOI system and LCD/LCM general purpose controllers and high precision electro flow table, key-press input optical coupling isolation circuit is connected with main control singlechip, for reading push button signalling, realizes and turn over screen and artificial reinspection function manually.The present invention can greatly reduce manufacturer and make test fixture hardware cost input and maintenance cost, while can also substantially reduce management cost by information system management platform.
Description
Technical field
The present invention relates to Drive technology field, specifically a kind of LCD/LCM multichannels universal driver.
Background technology
During existing LCD/LCM driving methods and quality check, for LCD drivings and quality inspection, it is generally used one
A electric logging device drives to be arranged, and the use that quality inspection has manually is estimated, and some uses traditional automated optical detection equipment
(AOI) it is communicated with electric logging device, then carries out automatic turning screen, takes pictures, picture detection etc..But not due to electric logging device human-machine operation
Enough close friends, setting is dumb, while supported segment encode number is also limited.And LCM is driven, it is generally used a model pair
Answer a test fixture., most of manufacturers are using artificial range estimation, and minority is using traditional automated optical detection equipment
(AOI) it is communicated with single test fixture, then carries out automatic turning screen, takes pictures, picture detection.Since different model LCM is produced
Product testing process has otherness, the signal bus also without general compatibility multiple interfaces form, artificial range estimation or traditional
Automated optical detection equipment (AOI) is required for a kind of LCM of built-in microcontroller of product design that manufacturer is each model to drive
Movable plate and frock clamp, different model product, because of the difference of product characteristic and driving interface, microcontroller mileage sequence has needed not
Together, external welding junction circuit also needs difference, and welding circuit is more, is easy broken string or short circuit, high failure rate.In addition product type at
Thousand is up to ten thousand, and the SCM program of each model is numerous and complicated mixed and disorderly, and unfavorable update and maintenance management can be sayed without versatility.
Moreover, in above method, even if using traditional automated optical detection equipment (AOI), 1 can only be generally supported
The driving of LCD/LCM products shows that the driving that design the LCD/LCM products for supporting 2 or more is shown, it is difficult to wiring
Complexity, operational reliability and product type switching agility substantially reduce, can not each split screen of synchronism detection operating current
With quiescent current etc..
Invention content
The purpose of the present invention is to provide a kind of LCD/LCM multichannels universal drivers, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides the following technical solutions：
A kind of LCD/LCM multichannels universal driver, including main control singlechip, LCD IC general driving CPU, level conversion
Device, RS485 drivers, high precision electro flow table, electronic switch, key-press input optical coupling isolation circuit, RS485 buses,
Main control singlechip is connect with level translator, for providing the drive signals such as IIC, SPI, parallel port, level translator
For providing different level signals for the product of distinct interface level；
Electronic switch and main control singlechip power on and go electricity, electronic switch and high precision electro flow table for realizing product
Series connection, the split screen electric current for measuring product；
Microcontroller is connected with RS485 drivers, and ammeter RS485 output ends and the output-parallel of RS485 drivers arrive
RS485 buses realize LCD/LCM for the two-way communication of AOI system and LCD/LCM general purpose controllers and high precision electro flow table
The loading of driver turns over screen, reads the functions such as current setting value, split screen current measurement value；
Key-press input optical coupling isolation circuit is connected with main control singlechip, for reading push button signalling, realize turn over manually screen and
Artificial reinspection function.
Compared with prior art, the beneficial effects of the invention are as follows：The setting of the present invention can support driving multi-disc LCD/LCM
Product is shown simultaneously, can support the common interface type such as IIC, SPI, parallel port, meets the interface shape of 95% or more LCD/LCM products
Formula.Universal driver supports long-range/scene driving to load, it is program-controlled turn over screen and telecommunication etc., for detected type product, only
It needs to load corresponding driver.Can greatly reduce manufacturer make test fixture hardware cost input and safeguard at
This, while management cost can also be substantially reduced by information system management platform.
Description of the drawings
Fig. 1 is the principle of the present invention schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of LCD/LCM multichannels universal driver, including main control singlechip,
LCD IC general driving CPU, level translator, RS485 drivers, high precision electro flow table, electronic switch, key-press input optocoupler every
From circuit, RS485 buses,
Main control singlechip is connect with level translator, for providing the drive signals such as IIC, SPI, parallel port, level translator
For providing different level signals for the product of distinct interface level；
Electronic switch and main control singlechip power on and go electricity, electronic switch and high precision electro flow table for realizing product
Series connection, the split screen electric current for measuring product；
Microcontroller is connected with RS485 drivers, and ammeter RS485 output ends and the output-parallel of RS485 drivers arrive
RS485 buses realize LCD/LCM for the two-way communication of AOI system and LCD/LCM general purpose controllers and high precision electro flow table
The loading of driver turns over screen, reads the functions such as current setting value, split screen current measurement value；
Key-press input optical coupling isolation circuit is connected with main control singlechip, for reading push button signalling, realize turn over manually screen and
Artificial reinspection function.
The setting of the present invention can support driving multi-disc LCD/LCM products while show, can support that IIC, SPI, parallel port etc. are normal
See interface type, meets the interface form of 95% or more LCD/LCM products.Long-range/live driving loading of universal driver support,
It is program-controlled to turn over screen and telecommunication etc., for detected type product, it is only necessary to load corresponding driver.It can subtract significantly
Few manufacturer makes test fixture hardware cost input and maintenance cost, while can also be dropped significantly by information system management platform
Low management cost.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (1)
1. a kind of LCD/LCM multichannels universal driver, including main control singlechip, LCD IC general driving CPU, level conversion
Device, RS485 drivers, high precision electro flow table, electronic switch, key-press input optical coupling isolation circuit, RS485 buses, feature exist
In,
Main control singlechip is connect with level translator, and for providing the drive signals such as IIC, SPI, parallel port, level translator is used for
Different level signals is provided for the product of distinct interface level；
Electronic switch and main control singlechip power on and go electricity, electronic switch to connect with high precision electro flow table for realizing product,
Split screen electric current for measuring product；
Microcontroller is connected with RS485 drivers, and ammeter RS485 output ends and the output-parallel of RS485 drivers are total to RS485
Line realizes LCD/LCM drivers for the two-way communication of AOI system and LCD/LCM general purpose controllers and high precision electro flow table
Loading, turn over screen, read current setting value, the functions such as split screen current measurement value；
Key-press input optical coupling isolation circuit is connected with main control singlechip, for reading push button signalling, realizes and turns over screen and artificial manually
Recheck function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810153509.8A CN108364596A (en) | 2018-02-22 | 2018-02-22 | A kind of LCD/LCM multichannels universal driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810153509.8A CN108364596A (en) | 2018-02-22 | 2018-02-22 | A kind of LCD/LCM multichannels universal driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108364596A true CN108364596A (en) | 2018-08-03 |
Family
ID=63002951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810153509.8A Pending CN108364596A (en) | 2018-02-22 | 2018-02-22 | A kind of LCD/LCM multichannels universal driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108364596A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030095127A (en) * | 2002-06-11 | 2003-12-18 | (주)동아엘텍 | Apparatus and method of testing backlight lamps of LCD Module |
| CN2814425Y (en) * | 2005-09-01 | 2006-09-06 | 比亚迪股份有限公司 | Liquid crystal display device module testing system |
| CN101477791A (en) * | 2009-01-16 | 2009-07-08 | 北京巨数数字技术开发有限公司 | LCD display device, maintenance system and method thereof |
| CN201382850Y (en) * | 2009-03-24 | 2010-01-13 | Tcl集团股份有限公司 | Test device for liquid crystal display module |
| CN201489225U (en) * | 2009-03-04 | 2010-05-26 | 广东工业大学 | TFT LCD programmable comprehensive performance electrical detector |
| CN102005194A (en) * | 2010-09-14 | 2011-04-06 | 吴坚鸿 | Monochrome liquid crystal module universal driver |
| CN103105684A (en) * | 2013-01-22 | 2013-05-15 | 北京京东方光电科技有限公司 | Test method, device, system and test equipment of liquid crystal display module |
| CN204178077U (en) * | 2014-11-20 | 2015-02-25 | 武汉精测电子技术股份有限公司 | Based on the station dial point screen system of the LCD screen of machine vision |
-
2018
- 2018-02-22 CN CN201810153509.8A patent/CN108364596A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030095127A (en) * | 2002-06-11 | 2003-12-18 | (주)동아엘텍 | Apparatus and method of testing backlight lamps of LCD Module |
| CN2814425Y (en) * | 2005-09-01 | 2006-09-06 | 比亚迪股份有限公司 | Liquid crystal display device module testing system |
| CN101477791A (en) * | 2009-01-16 | 2009-07-08 | 北京巨数数字技术开发有限公司 | LCD display device, maintenance system and method thereof |
| CN201489225U (en) * | 2009-03-04 | 2010-05-26 | 广东工业大学 | TFT LCD programmable comprehensive performance electrical detector |
| CN201382850Y (en) * | 2009-03-24 | 2010-01-13 | Tcl集团股份有限公司 | Test device for liquid crystal display module |
| CN102005194A (en) * | 2010-09-14 | 2011-04-06 | 吴坚鸿 | Monochrome liquid crystal module universal driver |
| CN103105684A (en) * | 2013-01-22 | 2013-05-15 | 北京京东方光电科技有限公司 | Test method, device, system and test equipment of liquid crystal display module |
| CN204178077U (en) * | 2014-11-20 | 2015-02-25 | 武汉精测电子技术股份有限公司 | Based on the station dial point screen system of the LCD screen of machine vision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203178453U (en) | Automatic test system for switch power supply module | |
| CN109143033A (en) | A kind of whole star interface automatization test system | |
| CN103983856B (en) | A kind of Low Voltage Differential Signal Interface Matching resistance automatic checkout equipment and method | |
| CN204595146U (en) | A kind of Portable multi-interface cable tester | |
| CN105372536A (en) | Aviation electronic universal test platform | |
| CN108364596A (en) | A kind of LCD/LCM multichannels universal driver | |
| CN205506989U (en) | Point screen tool | |
| CN105510796A (en) | Automatic tester applied to smart electric meter production line | |
| CN207968500U (en) | A kind of 101 channel distant place self-looped testing devices | |
| CN105589026A (en) | Large switch matrix testing device | |
| CN204334563U (en) | A kind of device of automatic detection LVDS signalling channel number | |
| CN107422657A (en) | A kind of signal condition and a/d conversion device based on cpci bus | |
| CN109493776A (en) | A kind of display panel test fixture and its test method | |
| CN215768949U (en) | Testing arrangement of multicore cable | |
| CN105070238A (en) | LED module light-out detection circuit, LED module and light-out detection method thereof | |
| CN203287492U (en) | Test board for testing X121 input/output port of numeric control unit | |
| CN211375588U (en) | Multi-debugging interface switching circuit | |
| CN103701660A (en) | Ethernet equipment connection device and testing system and method applied thereby | |
| CN102981134A (en) | Intelligent display device tester of switch cabinet | |
| CN207301205U (en) | A kind of intelligent station prepared auto restart drive aid | |
| CN107678893A (en) | Use the system of different operating system test electronic product | |
| CN203800194U (en) | Connector/terminal base switching adapter | |
| CN103278735B (en) | Multifunctional three-phase transformer CT loop-around test instrument | |
| CN207742256U (en) | Portable type full-automatic electrical interface D.C. resistance tests system | |
| CN205210211U (en) | General test platform of avionics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |