CN204360056U - A kind of novel liquid crystal display screen test machine - Google Patents
A kind of novel liquid crystal display screen test machine Download PDFInfo
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- CN204360056U CN204360056U CN201420811094.6U CN201420811094U CN204360056U CN 204360056 U CN204360056 U CN 204360056U CN 201420811094 U CN201420811094 U CN 201420811094U CN 204360056 U CN204360056 U CN 204360056U
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Abstract
The utility model discloses a kind of novel liquid crystal display screen test machine, comprise housing, housing is provided with interrupt switch, jtag interface and outlet, test module is provided with in housing, be electrically connected at the MIPI module of this test module, be electrically connected at the interface module of this MIPI module, interface module connects liquid crystal display to be measured, test module comprises fpga core unit, SDRAM memory module, FLASH memory module, MIPI module comprises liquid crystal driver module and signal conversion module, housing is also provided with TFT LCDs, eight toggle switchs be connected with test module, toggle switch is used for encoding to different test procedures, by selecting different codings, the program selecting needs is used for testing.This novel liquid crystal display screen test machine greatly reduces the fund cost buying testing jig, improves the efficiency of operation, and various modes is compatible, can load the test procedure that many groups are different.
Description
Technical field
The utility model relates to display screen test machine technical field, particularly relates to a kind of novel liquid crystal display screen test machine, detects for mobile phone screen.
Background technology
Can mobile phone screen normally need of work be through certain inspection process, and conventional detection includes without bright spot, the step such as whether to glimmer.Therefore, the yield of a kind of efficiently and accurately mobile phone screen detection system to product is extremely important.
The mobile phone screen test macro generally adopted at present in the industry has 51 single-chip microcomputers or AVR single chip high-level points to have ARM, wherein most often 51 single-chip microcomputers, and main cause is cheap easy to use, and DIP encapsulation plug uses.51 single-chip microcomputers and its frequency of operation dominant frequency of AVR single chip very low, during test products, the time of redraw is long, and ARM frequency of operation is higher, cost is also very high, and only have BGA package, compare effort during Design PCB and the high problem of cost makes a lot of factory not select ARM as test use.
Along with cell-phone function from strength to strength, the screen of mobile phone is also increasing, the lifting of test request speed, the increasing of program memory space, and 51 single-chip microcomputers, AVR single chip have had no idea to meet the demands.Test machine traditional is in the industry all machine program, whenever the number of remodeling all will programming code aptitude test again, compares waste man-hour.In order to solve the programming of production test, the workload that testing jig makes is large, and work difficulty is higher, and compare technical professional can complete just need to use, enterprise of a lot of processing factory etc. are all processings is at present main.Not too focus on the deposit of technician.The type of drive brought in the face of various different model distinct interface classification is different, so they will spend substantial contribution to arrive purchase testing jig, and can not deal with problems at all.New product prepares fund again buy new testing jig once have, old testing jig just becomes dull product, causes very large waste.
Utility model content
The purpose of this utility model is to provide one to test, and setup time is few, cost is low, operating efficiency is high, and dirigibility is strong, can load the test procedure novel liquid crystal display screen test machine that many groups are different.
For achieving the above object, the technical scheme that the utility model provides is: a kind of novel liquid crystal display screen test machine, comprise housing, described housing is provided with interrupt switch, program upgrade mouth and outlet, test module is provided with in described housing, be electrically connected at the MIPI module of this test module, be electrically connected at the interface module of this MIPI module, interface module connects liquid crystal display to be measured, test module comprises memory module, this memory module in advance burning has test procedure, described MIPI module comprises liquid crystal driver module and signal conversion module, housing is also provided with the toggle switch be connected with test module, described toggle switch is used for encoding to different test procedures, by selecting different codings, the program selecting needs is used for testing.
Preferably, described toggle switch is eight toggle switchs.
Preferably, described housing is also provided with the observation monitor be connected with test module, described observation monitor is used for display routine ruuning situation and wrong instruction situation.
Preferably, described observation monitor is TFT LCDs.
Preferably, described test module comprises fpga core unit, SDRAM memory module, FLASH memory module, and described SDRAM memory module receives mass data from FPGA, and speedy carding process mass data is to FPGA; Described FLASH memory module mainly stores the data information such as startup optimization program, master routine, model, sort program, picture of FPGA.
Preferably, described program upgrade mouth is jtag interface.
A technical scheme tool in technique scheme has the following advantages or beneficial effect: this test machine adopts FPGA+4M32SDRAM+64MbitsFLASH+TFT LCDs+eight toggle switchs as hardware system, just can set up a multi-mode compatibility, 8X8=64, deducting one is 0 entirely, one be entirely 1 Configuration Values, be exactly 62, that is can the test data of 62 test models be placed in a program at most, as long as carry out test data programming in advance to enter test machine, the model later just not needing programming more programmed, respective value can be set by toggle switch and select program, such purposes is the time in order to reduce test preliminary work, generally speaking in order to raising efficiency, the drive pattern of display screen is: SPI, i80-system(8 position ~ 18), DPI, MIPI DSI etc., various modes is compatible.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, simple introduction is done below by the accompanying drawing used required in embodiment or description of the prior art, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the johning knot composition of the utility model embodiment.
Embodiment
FPGA is the product further developed on the basis of the programming devices such as PAL, GAL, EPLD.It occurs as a kind of semi-custom circuit in special IC field, both the deficiency of custom circuit had been solved, overcome again the shortcoming that original programming device gate circuit number is limited, fpga core unit achieves in conjunction with SSD2828 conversion chip to drive the display screen of MIPI interface to realize the display of high definition high resolving power, is with the display screen of MIPI interface to show on test board by successfully allowing with C language coding control fpga core unit and SSD2828 conversion chip.Fpga core unit is electrically connected with SSD2828 conversion chip, SSD2828 conversion chip is provided with command unit and video unit, command unit and video unit are electrically connected with the MIPI interface of display screen respectively, conversion chip is also provided with control module, clock unit and data cell, and control module, clock unit and data cell are electrically connected with the MIPI interface of display screen respectively.
The appearance of FPGA bis-generation chip EP2C5Q208C8N is that another is progressive, and the most high workload of dominant frequency is at 200MHZ, and memory space can store with outside FLASH, reaches the memory space of 64Mbits.
FPGA is than 51 with fast 3 times of AVR speed, and program memory space is larger than them very many, and is the encapsulation of QFP paster, and PCB design only needs doubling plate, and design cost is lower, and available I/O port is many, can select arbitrarily, very flexibly.FPGA arranges in pairs or groups the enough memory headroom of SDRAM, can support the display format of 1080P, can backward compatible extended formatting, comprehensive support in resolution support.
Below by specific embodiment, the utility model is further described.
As shown in Figure 1, a kind of novel liquid crystal display screen test machine, comprise housing, housing is provided with interrupt switch, program upgrade mouth and outlet, program upgrade mouth is jtag interface, test module is provided with in housing, be electrically connected at the MIPI module of this test module, be electrically connected at the interface module of this MIPI module, eight toggle switchs, TFT LCD, interface module connects liquid crystal display to be measured, interface module is provided with MCU/RGB interface, by MCU/RGB interface, liquid crystal display to be measured and housing link together, test module comprises test module and comprises fpga core unit, SDRAM memory module, FLASH memory module, MIPI module comprises liquid crystal driver module and signal conversion module.
Fpga core unit, fpga core unit plays a part various sequential in systems in which and produces and data processing.It with outside TFT LCD, SDRAM memory module, toggle switch, FLASH memory module, LCD to be measured is connected becomes core CPU purposes.
TFT LCD, this test machine has used separately the TFT LCDs of a 176X220 resolution to observe monitor as the operation of test machine, and can find out program ruuning situation and wrong instruction situation intuitively, handled easily personnel intuitively find and deal with problems.
SDRAM memory module, SDRAM memory module plays the effect that large data store in systems in which, is in particular in: 1, receive mass data from FPGA; 2, speedy carding process mass data is to FPGA.
Eight toggle switchs, by the combination collocation of toggle switch 0 and 1 go out totally 62 groups of not like combinations numerical value from 1 ~ 62, scale-of-two is 00000001 ~ 11111110, have 62 combinations, the selection marker of the corresponding model of each combination, when toggle switch selects corresponding numerical value, the program just can selecting needs is used as test.
FLASH memory module, FLASH memory module is used as program's memory space in systems in which, the non-volatile character of the data information such as startup optimization program, master routine, model, sort program, picture of main storage FPGA stores, even if power down also can not be lost, after conveniently powering on, again recall use.
This test machine adopts FPGA+4M32SDRAM+64MbitsFLASH+ small display+eight toggle switchs as hardware system, just can set up a multi-mode compatibility, 8X8=64, deducting one is 0 entirely, one be entirely 1 Configuration Values, be exactly 62, that is can be placed in a program by 62 test datas testing models at most, as long as carry out test data programming in advance to enter test machine, the model later just not needing programming more programmed, respective value can be set by toggle switch and select program, such purposes is the time in order to reduce preliminary work, generally speaking in order to raising efficiency.
This test machine uses in our company workshop at present has six months, greatly reduces the fund cost that we buy testing jig, also improves the efficiency of operation in addition.Novel liquid crystal display screen test machine, multi-mode 62 is unified, and great advantage is exactly flexibly, such as our a line operator, produce change model time, no longer need test machine to take out from production, then give technical professional, the editor carrying out program downloads work.As long as originally had corresponding test procedure parameter in program, get final product a line operator and selected correct executive routine by table of comparisons self-changeable toggle switch.
Apply specific embodiment herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.The above is only preferred implementation of the present utility model, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvement, retouching or change can also be made, also above-mentioned technical characteristic can be combined by rights; These improve retouching, change or combination, or the design of utility model and technical scheme are directly applied to other occasion without improving, and all should be considered as protection domain of the present utility model.
Claims (6)
1. a novel liquid crystal display screen test machine, comprise housing, described housing is provided with interrupt switch, program upgrade mouth and outlet, test module is provided with in described housing, be electrically connected at the MIPI module of this test module, be electrically connected at the interface module of this MIPI module, interface module connects liquid crystal display to be measured, test module comprises memory module, this memory module in advance burning has test procedure, described MIPI module comprises liquid crystal driver module and signal conversion module, it is characterized in that housing being also provided with the toggle switch be connected with test module, described toggle switch is used for encoding to different test procedures, by selecting different codings, the program selecting needs is used for testing.
2. novel liquid crystal display screen test machine according to claim 1, is characterized in that: described toggle switch is eight toggle switchs.
3. novel liquid crystal display screen test machine according to claim 1, is characterized in that: described housing is also provided with the observation monitor be connected with test module, and described observation monitor is used for display routine ruuning situation and wrong instruction situation.
4. novel liquid crystal display screen test machine according to claim 3, is characterized in that described observation monitor is TFT LCDs.
5. novel liquid crystal display screen test machine according to claim 1, it is characterized in that: described test module comprises fpga core unit, SDRAM memory module, FLASH memory module, described SDRAM memory module receives mass data from FPGA, and speedy carding process mass data is to FPGA; Described FLASH memory module mainly stores the data information such as startup optimization program, master routine, model, sort program, picture of FPGA.
6. novel liquid crystal display screen test machine according to claim 1, is characterized in that: described program upgrade mouth is jtag interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420811094.6U CN204360056U (en) | 2014-12-19 | 2014-12-19 | A kind of novel liquid crystal display screen test machine |
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| CN201420811094.6U CN204360056U (en) | 2014-12-19 | 2014-12-19 | A kind of novel liquid crystal display screen test machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427773A (en) * | 2015-11-24 | 2016-03-23 | 昆山龙腾光电有限公司 | Aging testing system for liquid crystal display modules |
| CN105702187A (en) * | 2016-01-15 | 2016-06-22 | 京东方科技集团股份有限公司 | Interface circuit and test device |
| CN106920493A (en) * | 2017-04-07 | 2017-07-04 | 深圳市帝晶光电科技有限公司 | A kind of liquid crystal screen Cell method of testings of High voltage output |
| CN110718188A (en) * | 2019-11-20 | 2020-01-21 | 桂林海威科技股份有限公司 | FPGA-based display screen control card output signal conversion method and device |
| CN111175022A (en) * | 2019-11-29 | 2020-05-19 | 芜湖职业技术学院 | Detection device and method for liquid crystal display screen of ultrasonic cleaning machine |
| CN112067978A (en) * | 2020-09-02 | 2020-12-11 | 中科亿海微电子科技（苏州）有限公司 | FPGA screening test system and method based on FPGA |
| CN112083902A (en) * | 2020-09-03 | 2020-12-15 | 深圳市智莱科技股份有限公司 | Control method of storage cabinet, storage cabinet and readable storage medium |
| CN114326512A (en) * | 2021-12-30 | 2022-04-12 | 漳州市瑞敏特电子设备有限公司 | Multifunctional three-in-one coding emitter |
| WO2023116320A1 (en) * | 2021-12-20 | 2023-06-29 | 北京镁伽科技有限公司 | Fpga-based data flow processing method and apparatus, and pg device |
-
2014
- 2014-12-19 CN CN201420811094.6U patent/CN204360056U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427773A (en) * | 2015-11-24 | 2016-03-23 | 昆山龙腾光电有限公司 | Aging testing system for liquid crystal display modules |
| CN105427773B (en) * | 2015-11-24 | 2018-12-18 | 昆山龙腾光电有限公司 | Liquid crystal display die set aging testing system |
| CN105702187A (en) * | 2016-01-15 | 2016-06-22 | 京东方科技集团股份有限公司 | Interface circuit and test device |
| CN105702187B (en) * | 2016-01-15 | 2019-07-09 | 京东方科技集团股份有限公司 | A kind of interface circuit, test device |
| CN106920493A (en) * | 2017-04-07 | 2017-07-04 | 深圳市帝晶光电科技有限公司 | A kind of liquid crystal screen Cell method of testings of High voltage output |
| CN110718188A (en) * | 2019-11-20 | 2020-01-21 | 桂林海威科技股份有限公司 | FPGA-based display screen control card output signal conversion method and device |
| CN111175022A (en) * | 2019-11-29 | 2020-05-19 | 芜湖职业技术学院 | Detection device and method for liquid crystal display screen of ultrasonic cleaning machine |
| CN112067978A (en) * | 2020-09-02 | 2020-12-11 | 中科亿海微电子科技（苏州）有限公司 | FPGA screening test system and method based on FPGA |
| CN112083902A (en) * | 2020-09-03 | 2020-12-15 | 深圳市智莱科技股份有限公司 | Control method of storage cabinet, storage cabinet and readable storage medium |
| CN112083902B (en) * | 2020-09-03 | 2023-12-19 | 深圳市智莱科技股份有限公司 | Control method of storage cabinet, storage cabinet and readable storage medium |
| WO2023116320A1 (en) * | 2021-12-20 | 2023-06-29 | 北京镁伽科技有限公司 | Fpga-based data flow processing method and apparatus, and pg device |
| CN114326512A (en) * | 2021-12-30 | 2022-04-12 | 漳州市瑞敏特电子设备有限公司 | Multifunctional three-in-one coding emitter |
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| C14 | Grant of patent or utility model | ||
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| 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: 20150527 Termination date: 20171219 |