CN201489795U

CN201489795U - Display flaw automatic detecting device

Info

Publication number: CN201489795U
Application number: CN200920191023XU
Authority: CN
Inventors: 李贵彤; 张生高
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-03
Filing date: 2009-08-03
Publication date: 2010-05-26
Anticipated expiration: 2019-08-03

Abstract

The utility mode discloses a display flaw automatic detecting device, which comprises an image acquisition device acquiring the image data displayed by a tested display apparatus, a data analyzing and processing device analyzing and processing the image data acquired by an image acquisition device and a display device displaying the analysis and processing result of a data analyzing and processing device. The utility model can detect the products with display flaw in the production process of the display apparatus, such as LCD, PDP, OLED, LED or CRT conveniently, quickly and accurately. The utility model saves the cost, improves the product quality and the production efficiency and can detect a plurality of products at the same time.

Description

The display defect automatic detection device

Technical field

The utility model relates to a kind of display device pick-up unit, especially refers to a kind of display defect automatic detection device.

Background technology

Various demonstration products such as LCD, PDP, OLED, CRT, LED etc. are applied to people's various fields in life more and more, become people and obtain one of main means of information.

In various demonstration production manufacture processes, because equipment, technology, think that factor can cause the generation of bad demonstration product, as producing aberration, bright spot, dim spot, broken string, Mura display defects such as (mother draw) in the LCD display part production run.These display defects must in time be picked out, in order to avoid starting material, the cost of labor of waste back operation, and issuable quality accident, and enterprise causes massive losses without redemption.

Be example still,, need small real defect is picked out in manufacturing process because people are more and more higher to the pursuit of display effect with the LCD display part.Present panel manufacturing plant all arranges veteran quality personnel to check piecewise carefully whether each sheet LCD panel exists display defect.But along with display device resolution is increasing, pixel is more and more littler, be difficult for finding out and picking out as display defects such as dim spot, bright spots, and personnel's level or all easy omission display defect product of fatigue, continue to flow to the subsequent handling of manufacturing, wasted a large amount of IC of back operation, FPC, polaroid, backlight etc. like this, increased production cost, and influenced product quality and corporate image.

Summary of the invention

In view of the problems referred to above of the prior art, problem to be solved in the utility model provides a kind of display defect automatic detection device, and is convenient, fast, detect the product of display defect exactly, and picks out, to reach the purpose that reduces production costs.

To achieve these goals, the utility model provides a kind of display defect automatic detection device, comprising: obtain the view data that the described image acquiring device of image acquiring device, analyzing and processing of the shown view data of tested display device obtains the data analysis treating apparatus, show the display device of described data analysis treating apparatus analysis processing result.

Described tested display device is LCD display part, PDP display device, OLED display device, light-emitting diode display spare or CRT monitor part.

As preferably, described image acquiring device is ccd video camera or cmos camera.

As preferably, described data analysis treating apparatus comprises Data Receiving unit, standard data storage unit, data analysis contrast unit, output unit, whether the data that the described Data Receiving of described data analysis contrast unit judges unit receives are identical with the corresponding data in the described standard data storage unit, and described output unit receives the judged result of described analysis contrast unit.

As preferably, also be included in the warning device of reporting to the police when finding display defect, described warning device is an audible-visual annunciator.

As preferably, described display device is LCD display, PDP display, OLED display, light-emitting diode display or CRT monitor.

As preferably, the display result of described display device comprises display defect kind, the display defect order of severity and display defect relative coordinate position, and described display defect kind further comprises aberration, bright spot, dim spot, broken string, Mura (mother draws).

As preferably, also comprise the drive unit that drives tested display device, described drive unit further comprises the test cell of placing tested display device, the display driver unit that is connected with described test board.

The utlity model has following beneficial effect: reduced human factor, convenient, fast, detect the product of display defect automatically exactly, saved cost, improved product quality.And can detect the multi-disc product simultaneously, improved production efficiency.

Description of drawings

Fig. 1 is the structural representation of display defect automatic detection device embodiment one of the present utility model;

Fig. 2 is the structural representation of display defect automatic detection device embodiment two of the present utility model;

Fig. 3 is the structural representation of display defect automatic detection device embodiment three of the present utility model;

Fig. 4 is the structural representation of display defect automatic detection device embodiment four of the present utility model.

Embodiment

Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Embodiment one:

The structural representation of display defect automatic detection device of the present utility model as shown in Figure 1 comprises the data analysis treating apparatus 12 of the image acquiring device 11 that obtains the shown view data of tested display device, view data that analyzing and processing image acquiring device 11 obtains, the display device 13 of display data analysis treating apparatus 12 analysis processing result.

Described display device is LCD display, PDP display, OLED display, light-emitting diode display or CRT monitor.

With the LCD display part is example (following each embodiment is an example with the LCD display part all), image acquiring device 11 is selected ccd video camera or cmos camera for use, obtain the data of LCD display image and be converted to accessible image data transmission and give data analysis treating apparatus 12, data analysis treating apparatus 12 judges whether to exist display defect, as aberration, bright spot, dim spot, broken string, Mura (mother draws) etc., and show by display device 13, comprise the display defect kind, useful informations such as the display defect order of severity and display defect relative coordinate position, supply tester's reference and take corresponding measure, judge to choose according to quality standard and still continue as non-defective unit as defective products.Add up contrast table 1 (2.4 cun LCD show module) referring to display defect automatic detection device that uses present embodiment and manual testing:

Table 1: test statistics contrast table

The beneficial effect of present embodiment is to detect display defect automatically, reduced artificial participation, convenient, fast, accurately choose the product that display defect is arranged, reduced loss, reduced the possible cost waste of back operation, can detect simultaneously by a batch property multi-disc product simultaneously, improved production efficiency greatly.

Embodiment two:

On the basis of embodiment one, as shown in Figure 2, data analysis treating apparatus 12 further comprises in the present embodiment: Data Receiving unit 121, standard data storage unit 122, data analysis contrast unit 123, output unit 124, Data Receiving unit 121 receives the view data of obtaining from image acquisition unit 11, the normal data that standard data storage unit 122 storages are preset, data analysis contrast unit 123 compares the data in the Data Receiving unit 121 and judges and confirm whether data are identical with standard data storage unit 122 interior corresponding data, as identical, then draw no display defect conclusion, as difference, then drawn the display defect conclusion, output unit 124 contrasts data analysis the conclusion output of making unit 123, initialize program in output unit 124, the kind of output display defect, the order of severity, display defect relative coordinate position, whether display defect is in quality management and control scope, show with the window visualization interface by display device 13, come into plain view.

As in LCD display part test process, the display defect that needs to judge has bright spot, dim spot, broken string, MURA (mother draws) etc., and require to have formulated the corresponding judgment standard according to quality management, to test picture such as red, green, blue accordingly, white, black monochrome normal pictures information deposits standard data storage unit 122 in, use the display defect automatic detection device of present embodiment, further substitute the detected display defect of artificial judgment and be as non-defective unit and proceed the back operation or choose as defective products.Bright spot for example, quality management and control require diameter to be judged as non-defective unit less than 0.1mm, then choose as defective products more than or equal to 0.1mm, in output unit 124, preset comparison program, with 0.1mm is that standard is judged, has saved the artificial trouble of judging once more, accurately reliable.

The beneficial effect of present embodiment is, on the basis of the beneficial effect of embodiment one, reduced artificial participation further, reduced False Rate.

Embodiment three:

On the basis of embodiment one, as shown in Figure 3, difference only is to have comprised warning device 31, and warning device 31 is connected with data analysis processing unit 12, warning device 31 specifically can be audible-visual annunciator such as hummer, LED lamp etc., and pointing out has display defect to exist in the tested demonstration product.

As in LCD display part test process, the product proportion that display defect is generally arranged is below 3%, therefore in most of the cases all there is not the display defect product, the existence of warning device 31 has been arranged, then have only when the display defect product occurring, personnel just need monitor display unit 13 and choose the defective products with display defect, all are under the situation of non-defective unit at all tested batch of LCD display parts, need not note the display result of display device 13, improve test speed.

The beneficial effect of present embodiment is, only just need monitor and choose defective products when the display defect product occurring, further reduced detection time, improved production efficiency.

Embodiment four:

On the basis of embodiment three, as shown in Figure 4, difference only is to comprise the drive unit 41 that drives tested display device, drive unit 41 comprises the test cell 411 of placing tested display device, the display driver unit 412 that is connected with described test cell, described test cell 411 also is connected with warning device 31, is used to close the tested display device of display defect.

In LCD display part test process, under the tested batch of situation that the display defect product arranged, closing by the warning device feedback signal has the LCD display of display defect part accordingly, and this moment, other non-defective unit LCD display part also was in illuminating state, making to choose has the LCD display of display defect part to become very easy, does not need to monitor the display result of display device 13 equally.

The beneficial effect of present embodiment is, chooses to have to show bad display device more conveniently, further improved production efficiency.

Above embodiment is an exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is limited by additional claims.Those skilled in the art will be appreciated that; the utility model can use hardware such as single-chip microcomputer, DSP, FPGA; by being set, realizes software program; all should be included in essence of the present utility model and the protection domain; the utility model is made various modifications or is equal to replacement, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.

Claims

1. display defect automatic detection device, it is characterized in that, comprising: obtain the view data that the described image acquiring device of image acquiring device, analyzing and processing of the shown view data of tested display device obtains the data analysis treating apparatus, show the display device of described data analysis treating apparatus analysis processing result.

2. display defect automatic detection device according to claim 1 is characterized in that, described tested display device is LCD display part, PDP display device, OLED display device, light-emitting diode display spare or CRT monitor part.

3. display defect automatic detection device according to claim 1 and 2 is characterized in that, described image acquiring device is ccd video camera or cmos camera.

4. display defect automatic detection device according to claim 1 and 2, it is characterized in that, described data analysis treating apparatus comprises Data Receiving unit, standard data storage unit, data analysis contrast unit, output unit, whether the data that the described Data Receiving of described data analysis contrast unit judges unit receives are identical with the corresponding data in the described standard data storage unit, and described output unit receives the judged result of described analysis contrast unit.

5. display defect automatic detection device according to claim 4 is characterized in that, also is included in the warning device of reporting to the police when finding display defect.

6. display defect automatic detection device according to claim 5 is characterized in that, described warning device is an audible-visual annunciator.

7. display defect automatic detection device according to claim 1 and 2 is characterized in that, described display device is LCD display, PDP display, OLED display, light-emitting diode display or CRT monitor.