CN201780429U - Luminance uniformity test system of liquid-crystal display - Google Patents
Luminance uniformity test system of liquid-crystal display Download PDFInfo
- Publication number
- CN201780429U CN201780429U CN2010205361234U CN201020536123U CN201780429U CN 201780429 U CN201780429 U CN 201780429U CN 2010205361234 U CN2010205361234 U CN 2010205361234U CN 201020536123 U CN201020536123 U CN 201020536123U CN 201780429 U CN201780429 U CN 201780429U
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- production line
- lcd
- crystal display
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Abstract
The utility model relates to a luminance uniformity test system of a liquid-crystal display, which comprises a group of lighting probes, a color analyzer, a local area network, a main control computer and a PLC (programmable logic controller) arranged on a production line. The system begins to perform testing by fixing the nine lighting probes through brackets, ensuring that a signal source C-2325 provides white-pattern signals for the liquid-crystal display, and ensuring that a program automatically reads collector plate bar codes. Luminance collection is simultaneously performed at nine points through the color analyzer, data is transmitted to a PC (personal computer), and whether a BU test value is in accordance with the inspection specification of BU is judged through software of the PC, not only the test time is reduced and the test efficiency is improved, but also automatic reading can be realized, operation motion is reduced, and fully-automatic test is realized.
Description
Technical field
The utility model relates to a kind of LCD brightness uniformity coefficient test macro.
Background technology
BU is named in the test of liquid crystal luminance uniformity test again, and so-called luminance uniformity is meant that the brightness of display all is the same on just whole screen, and the luminance difference opposite sex is more little, and then the uniformity coefficient of this display is good more.The test philosophy of BU is to utilize color analyzer to after carrying out the daylighting of nine points with the centre around on the panel of LCD, and the test data of the brightness of individual point is compared, and press the reckoning of BU computing formula, and its test structure need meet the check specification of BU.
In the prior art, the test mode of luminance uniformity is: adopt color analyzer that three points of display are carried out the brightness collection, continuous acquisition three times is totally nine points, each data of gathering once are transferred to PC, after 9 equal image data, judge by the software of PC whether its test result meets the check specification of BU, moving then of instrument acquisition probe controlled by automatic positioning mechanical arm, and its grade is moved up and down on demand.Such method of testing less stable, efficient is low, and the test duration is longer; And need operator manually to read sign indicating number and begin test, increased the operation action.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of LCD brightness uniformity coefficient test macro is provided, and this system not only can shorten the test duration, promote testing efficiency, and can realize reading automatically sign indicating number, and reduce the operation action, realize full-automatic testing.
The technical solution of the utility model is: a kind of LCD brightness uniformity coefficient test macro is characterized in that: comprise one group of daylighting probe, color analyzer, LAN, main control computer and be located at PLC controller on the production line;
Described PLC controller is provided with the dog catch switch of the dog catch action on the control production line and is used to trigger the signal input part of dog catch switch, moves so that display device flows to the next stop with the control obstruction device;
Described main control computer is connected with LAN (Local Area Network), be used for sending test instruction to color analyzer, and after finishing, test reads the brightness value that color analysis instrument is gathered, calculate luminance uniformity according to the brightness value that records, judge whether to let pass according to the luminance uniformity value, and whether send all-clear to the PLC controller;
Described daylighting probe is connected with color analyzer.
The beneficial effects of the utility model are that native system adopts nine points to display to carry out the brightness collection simultaneously, give PC with the data transmission after gathering, and are judged by PC software, and the daylighting probe need not to move; Native system is simple to operate, only need connect signal wire, and system can begin test automatically, reduces the action of producing the line operating personnel, reduces the labour intensity of operator; Native system has extremely strong adaptive faculty, and stable testing is higher.
Description of drawings
Fig. 1 is a control flow chart of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the structural representation of the utility model daylighting probe.
Embodiment
The utility model comprises one group of daylighting probe 1, color analyzer 2, LAN 3, main control computer 4 and is located at PLC controller 6 on the production line 5;
Described PLC controller is provided with the dog catch switch 8 of dog catch 7 actions on the control production line and is used to trigger the signal input part 9 of dog catch switch, moves so that display device flows to the next stop with the control obstruction device;
Described main control computer is connected with LAN (Local Area Network), be used for sending test instruction to color analyzer, and after finishing, test reads the brightness value that color analysis instrument is gathered, calculate luminance uniformity according to the brightness value that records, judge whether to let pass according to the luminance uniformity value, and whether send all-clear to the PLC controller;
Described daylighting probe is connected with color analyzer.
Described daylighting probe is one group nine probes 10, is fixed on the support 11, surveys the brightness value of nine points on the LCD plane simultaneously.
Display device is arranged on the collector plate 12, and circulates on production line with described collector plate.
Adopt signal source C-2325 to provide white-pattern signal for display.
The course of work of the present utility model is as follows: native system is fixing with nine daylighting probes by support, and uses signal source C-2325 to provide white-pattern signal as display, and Automatic Program reads the collector plate bar code and promptly begins test.Adopt color analyzer C-7120 that nine points are carried out the brightness collection simultaneously, data transmission is given PC, judge by the software of PC whether the BU test value of this display meets the check specification of BU, up to specification, just the BU data upload with test arrives LAN system, preserve data and be convenient to follow the trail of, program display " PASS " is simultaneously also controlled dog catch and is descended and make display flow to the next stop, and the then program display " NG " that falls short of specifications makes display can't flow to the next stop.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (4)
1. LCD brightness uniformity coefficient test macro is characterized in that: comprise one group of daylighting probe, color analyzer, LAN, main control computer and be located at PLC controller on the production line;
Described PLC controller is provided with the dog catch switch of the dog catch action on the control production line and is used to trigger the signal input part of dog catch switch, moves so that display device flows to the next stop with the control obstruction device;
Described main control computer is connected with LAN (Local Area Network), be used for sending test instruction to color analyzer, and after finishing, test reads the brightness value that color analysis instrument is gathered, calculate luminance uniformity according to the brightness value that records, judge whether to let pass according to the luminance uniformity value, and whether send all-clear to the PLC controller;
Described daylighting probe is connected with color analyzer.
2. LCD brightness uniformity coefficient test macro according to claim 1 is characterized in that: described daylighting probe is one group of nine probe, is fixed on the support, surveys the brightness value of nine points on the LCD plane simultaneously.
3. LCD brightness uniformity coefficient test macro according to claim 1, it is characterized in that: display device is arranged on the collector plate, and circulates on production line with described collector plate.
4. LCD brightness uniformity coefficient test macro according to claim 1 is characterized in that: adopt signal source C-2325 to provide white-pattern signal for display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205361234U CN201780429U (en) | 2010-01-07 | 2010-09-20 | Luminance uniformity test system of liquid-crystal display |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020300288 | 2010-01-07 | ||
| CN201020300288.1 | 2010-01-07 | ||
| CN2010205361234U CN201780429U (en) | 2010-01-07 | 2010-09-20 | Luminance uniformity test system of liquid-crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780429U true CN201780429U (en) | 2011-03-30 |
Family
ID=43793640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205361234U Expired - Fee Related CN201780429U (en) | 2010-01-07 | 2010-09-20 | Luminance uniformity test system of liquid-crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201780429U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819245A (en) * | 2019-01-24 | 2019-05-28 | 武汉精立电子技术有限公司 | The On-line Measuring Method and device of chroma luminance data based on AOI platform |
| CN113868057A (en) * | 2021-09-28 | 2021-12-31 | 福建捷联电子有限公司 | Automatic test system and method for storage performance of display |
| WO2022120584A1 (en) * | 2020-12-08 | 2022-06-16 | 深圳市艾比森光电股份有限公司 | Led display unit yin-yang color measuring apparatus and measuring method |
-
2010
- 2010-09-20 CN CN2010205361234U patent/CN201780429U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819245A (en) * | 2019-01-24 | 2019-05-28 | 武汉精立电子技术有限公司 | The On-line Measuring Method and device of chroma luminance data based on AOI platform |
| CN109819245B (en) * | 2019-01-24 | 2020-10-02 | 武汉精立电子技术有限公司 | On-line measuring method and device for chroma and brightness data based on AOI platform |
| WO2022120584A1 (en) * | 2020-12-08 | 2022-06-16 | 深圳市艾比森光电股份有限公司 | Led display unit yin-yang color measuring apparatus and measuring method |
| CN113868057A (en) * | 2021-09-28 | 2021-12-31 | 福建捷联电子有限公司 | Automatic test system and method for storage performance of display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |