CN205581446U - Liquid crystal display optical detection system - Google Patents
Liquid crystal display optical detection system Download PDFInfo
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- CN205581446U CN205581446U CN201620286320.2U CN201620286320U CN205581446U CN 205581446 U CN205581446 U CN 205581446U CN 201620286320 U CN201620286320 U CN 201620286320U CN 205581446 U CN205581446 U CN 205581446U
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Abstract
The utility model discloses a liquid crystal display optical detection system for detect liquid crystal display, including master control computer, signaling conversion circuit board, test probe, color analysis appearance and being used for the power supply for signaling conversion circuit board and liquid crystal display power supply, the master control computer is connected with the signaling conversion circuit board, and the signaling conversion circuit board is connected with liquid crystal display, and test probe's the output and the input of color analysis appearance are connected, and the output and the input of master control computer of color analysis appearance are connected. This detecting system cost is lower, the commonality is high, but the wide application is in liquid crystal display's detection area.
Description
Technical field
This utility model relates to LCDs detection field, particularly relates to a kind of LCDs Systems for optical inspection.
Background technology
Explanation of nouns:
TMDS:Transition Min imized Differential Signaling, minimizes differential signal transmission；
LVDS:Low-Voltage Differential
Signaling, low-voltage differential signal；
TTL:Transistor-Transistor
Logic, transistor-transistor logic；
EEPROM:Electrically Erasable
Programmable Read-Only Memory, EEPROM.
LCDs is widely used in flat panel TV, as the key components and parts of television set, is required for testing its parameter, in order to find defective products in time in product development, production process.And in after-sale service, it being also required to LCDs is carried out parameter testing, investigation detects its failure condition.LCDs is tested by technology at present, major part be by input picture or video signal to LCDs after, carry out by the way of eye-observation, this mode is limited to the subjectivity of testing staff, although the most also can detect main fault, but colourity, the isoparametric accuracy of detection of brightness for display screen is the highest.Although it addition, also there are some large test systems can realize the test to LCDs, but this being typically only applied on production line, it is expensive, and versatility is the highest.
Utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of LCDs Systems for optical inspection.
This utility model solves its technical problem and be the technical scheme is that
A kind of LCDs Systems for optical inspection, for detecting LCDs, including main control computer, signaling conversion circuit plate, detection probe, color analysis instrument and for the power supply powered for signaling conversion circuit plate and LCDs, described main control computer is connected with signaling conversion circuit plate, described signaling conversion circuit plate is connected with LCDs, the outfan of described detection probe is connected with the input of color analysis instrument, and the outfan of described color analysis instrument is connected with the input of main control computer.
Further, described main control computer is also associated with wireless communication module.
Further, described signaling conversion circuit plate includes the first signal conversion chip and secondary signal conversion chip, described main control computer, the first signal conversion chip, secondary signal conversion chip and LCDs are sequentially connected with, and described power supply is connected with the first signal conversion chip and secondary signal conversion chip respectively.
Further, described signaling conversion circuit plate also includes resolution input circuit.
Further, described resolution input circuit includes that multiple EEPROM for storing different resolution data, each described EEPROM are connected with main control computer by a switch respectively.
Further, described first signal conversion chip uses model to be the chip of SiI1161CTU, and described secondary signal conversion chip uses model to be the chip of THC63LVD823B.
Further, also including print module, the first outfan of described main control computer is connected with the input of print module.
Further, also including alarm module, the second outfan of described main control computer is connected with the input of alarm module.
Further, described main control computer is also associated with expansion module.
The beneficial effects of the utility model are: a kind of LCDs Systems for optical inspection of the present utility model, for detecting LCDs, including main control computer, signaling conversion circuit plate, detection probe, color analysis instrument and for the power supply powered for signaling conversion circuit plate and LCDs, described main control computer is connected with signaling conversion circuit plate, described signaling conversion circuit plate is connected with LCDs, the outfan of described detection probe is connected with the input of color analysis instrument, and the outfan of described color analysis instrument is connected with the input of main control computer.This detecting system cost is relatively low, versatility is high, can be applicable to various place and detects LCDs.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structured flowchart of a kind of LCDs Systems for optical inspection of the present utility model；
Fig. 2 is the structured flowchart of the signaling conversion circuit plate of a kind of LCDs Systems for optical inspection of the present utility model；
Fig. 3 is the analog circuit figure of the specific embodiment intermediate-resolution input circuit of a kind of LCDs Systems for optical inspection of the present utility model.
Detailed description of the invention
With reference to Fig. 1, a kind of LCDs Systems for optical inspection, for detecting LCDs, including main control computer, signaling conversion circuit plate, detection probe, color analysis instrument and for the power supply powered for signaling conversion circuit plate and LCDs, described main control computer is connected with signaling conversion circuit plate, described signaling conversion circuit plate is connected with LCDs, the outfan of described detection probe is connected with the input of color analysis instrument, and the outfan of described color analysis instrument is connected with the input of main control computer.
Being further used as preferred embodiment, described main control computer is also associated with wireless communication module.
It is further used as preferred embodiment, with reference to Fig. 2, described signaling conversion circuit plate includes the first signal conversion chip and secondary signal conversion chip, described main control computer, the first signal conversion chip, secondary signal conversion chip and LCDs are sequentially connected with, and described power supply is connected with the first signal conversion chip and secondary signal conversion chip respectively.
Being further used as preferred embodiment, described signaling conversion circuit plate also includes resolution input circuit.
Being further used as preferred embodiment, described resolution input circuit includes that multiple EEPROM for storing different resolution data, each described EEPROM are connected with main control computer by a switch respectively.
Being further used as preferred embodiment, described first signal conversion chip uses model to be the chip of SiI1161CTU, and described secondary signal conversion chip uses model to be the chip of THC63LVD823B.
Being further used as preferred embodiment, also include print module, the first outfan of described main control computer is connected with the input of print module.
Being further used as preferred embodiment, also include alarm module, the second outfan of described main control computer is connected with the input of alarm module.
Being further used as preferred embodiment, described main control computer is also associated with expansion module.
Below in conjunction with specific embodiment, this utility model is elaborated.
Embodiment one
With reference to Fig. 1, a kind of LCDs Systems for optical inspection, for detecting LCDs, including main control computer, wireless communication module, expansion module, print module, alarm module, signaling conversion circuit plate, detection probe, color analysis instrument and for the power supply powered for signaling conversion circuit plate and LCDs, main control computer respectively with wireless communication module, expansion module and signaling conversion circuit plate connect, first outfan of main control computer is connected with the input of print module, second outfan of main control computer is connected with the input of alarm module, signaling conversion circuit plate is connected with LCDs, the outfan of detection probe is connected with the input of color analysis instrument, the outfan of color analysis instrument is connected with the input of main control computer.Detection data can be sent to the intelligent terminal such as user mobile phone, panel computer by communication by wireless communication module, it is achieved wireless data transmission, convenient, fast.Print module is used for printing examining report, and alarm module is for alerting when fault being detected.Expansion module is used for accessing expanding storage apparatus, and such as expansion module includes USB control circuit and USB interface, can access various USB flash disk, portable hard drive lamp by USB interface.
With reference to Fig. 2, in the present embodiment, signaling conversion circuit plate includes the first signal conversion chip and secondary signal conversion chip, main control computer, the first signal conversion chip, secondary signal conversion chip and LCDs are sequentially connected with, and power supply is connected with the first signal conversion chip and secondary signal conversion chip respectively.First signal conversion chip uses model to be the chip of SiI1161CTU, and secondary signal conversion chip uses model to be the chip of THC63LVD823B.Main control computer is by image that DVI interface output format is TMDS or video signal, by the first signal conversion chip, TMDS signal being converted to TTL signal, being then converted to by TTL signal by the first signal conversion chip can be directly at the LVDS signal of liquid crystal display screen display.
In the present embodiment, color analysis instrument uses model to be the instrument of CA-210, detection probe is the probe mated with CA-210, after the image for showing LCDs carries out optic test, is input to color analysis instrument CA-210 after the optical signal that detection obtains is converted to the signal of telecommunication.The signal of telecommunication that detection probe is sent by CA-210 carries out internal analysis process, obtains the optical characteristics data of LCDs.It is connected by USB line between main control computer with color analysis instrument.
This utility model uses color analysis instrument to detect, and can detect the many kinds of parameters of LCDs, and versatility is high, and relative to present large-scale detection equipment, this detecting system cost is relatively low, be suitable for exploitation, produce, the various places application such as after sale.
Embodiment two
The present embodiment is the further improvement in embodiment one, as shown in Figure 2, in the present embodiment, signaling conversion circuit plate also includes resolution input circuit, resolution input circuit includes multiple EEPROM for storing different resolution data, and each EEPROM is connected with main control computer by a switch respectively.Each EEPROM stores different resolution data (i.e. EDID respectively, extending display identification data), it is connected with main control computer by switch, switch connection when loop, a certain EEPROM place, when this EEPROM is connected with main control computer, main control computer just can read the resolution data of storage in this EEPROM, thus obtains and export corresponding image or video signal to signaling conversion circuit plate.
Fig. 3 is a specific example of the present embodiment, and in Fig. 3, resolution input circuit includes two EEPROM that chip model is AT24C02 storing different resolution data respectively
U6 and U7, DVI_5V represents running voltage, DDC_DAT represents the connection end with main control computer, U6 is connected with main control computer by K2, U7 is connected with main control computer by K1, when K1 closes, when K2 opens, U7 is connected with main control computer, and main control computer reads the resolution data of storage in U7 by interface SDA_FHD；When K1 opens, when K2 closes, U6 is connected with main control computer, and main control computer reads the resolution data of storage in U7 by interface SDA_HD.Therefore, when the LCDs to different resolution is tested, it is only necessary to by switching switch K1 and K2, picture or the switching of video format resolution of main control computer output can be realized.Alternatively, it is also possible to use single-pole double-throw switch (SPDT) to select to be connected U6 or U7 with main control computer.Compared to current technology by the way of the resolution data of input LCDs carries out the selection of image or video data, by the way of the selection that the resolution of MCU reading LCDs triggers image or video data, this programme is simple to operate, production cost is low, can trigger the data of main control computer output different resolution rapidly.
It is above preferable enforcement of the present utility model is illustrated, but the invention is not limited to embodiment, those of ordinary skill in the art it may also be made that all equivalent variations or replacement on the premise of this utility model spirit, and modification or the replacement of these equivalents are all contained in the application claim limited range.
Claims (9)
1. a LCDs Systems for optical inspection, for detecting LCDs, it is characterized in that, including main control computer, signaling conversion circuit plate, detection probe, color analysis instrument and for the power supply powered for signaling conversion circuit plate and LCDs, described main control computer is connected with signaling conversion circuit plate, described signaling conversion circuit plate is connected with LCDs, the outfan of described detection probe is connected with the input of color analysis instrument, and the outfan of described color analysis instrument is connected with the input of main control computer.
A kind of LCDs Systems for optical inspection the most according to claim 1, it is characterised in that described main control computer is also associated with wireless communication module.
A kind of LCDs Systems for optical inspection the most according to claim 1, it is characterized in that, described signaling conversion circuit plate includes the first signal conversion chip and secondary signal conversion chip, described main control computer, the first signal conversion chip, secondary signal conversion chip and LCDs are sequentially connected with, and described power supply is connected with the first signal conversion chip and secondary signal conversion chip respectively.
A kind of LCDs Systems for optical inspection the most according to claim 3, it is characterised in that described signaling conversion circuit plate also includes resolution input circuit.
A kind of LCDs Systems for optical inspection the most according to claim 4, it is characterised in that described resolution input circuit includes that multiple EEPROM for storing different resolution data, each described EEPROM are connected with main control computer by a switch respectively.
A kind of LCDs Systems for optical inspection the most according to claim 3, it is characterised in that described first signal conversion chip uses model to be the chip of SiI1161CTU, described secondary signal conversion chip uses model to be the chip of THC63LVD823B.
A kind of LCDs Systems for optical inspection the most according to claim 1, it is characterised in that also including print module, the first outfan of described main control computer is connected with the input of print module.
A kind of LCDs Systems for optical inspection the most according to claim 1, it is characterised in that also including alarm module, the second outfan of described main control computer is connected with the input of alarm module.
A kind of LCDs Systems for optical inspection the most according to claim 1, it is characterised in that described main control computer is also associated with expansion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620286320.2U CN205581446U (en) | 2016-04-07 | 2016-04-07 | Liquid crystal display optical detection system |
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| CN201620286320.2U CN205581446U (en) | 2016-04-07 | 2016-04-07 | Liquid crystal display optical detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024787A (en) * | 2017-05-05 | 2017-08-08 | 盐城华星光电技术有限公司 | A kind of LCD liquid crystal display screen detection means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024787A (en) * | 2017-05-05 | 2017-08-08 | 盐城华星光电技术有限公司 | A kind of LCD liquid crystal display screen detection means |
| WO2018201724A1 (en) * | 2017-05-05 | 2018-11-08 | 盐城华星光电技术有限公司 | Lcd display screen detection device |
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Address after: Room 429, Creative Center, No. 69 Spectra West Road, Huangpu District, Guangzhou City, Guangdong Province, 510000 Patentee after: GUANGZHOU SHANGFENG INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: Room 2007, No. 101 Science Avenue, Luogang District, Guangzhou City, Guangdong Province, 510430 Patentee before: GUANGZHOU SHANGFENG INTELLIGENT TECHNOLOGY Co.,Ltd. |