CN102945359A - Testing device and testing method for display panel - Google Patents
Testing device and testing method for display panel Download PDFInfo
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- CN102945359A CN102945359A CN2012104130448A CN201210413044A CN102945359A CN 102945359 A CN102945359 A CN 102945359A CN 2012104130448 A CN2012104130448 A CN 2012104130448A CN 201210413044 A CN201210413044 A CN 201210413044A CN 102945359 A CN102945359 A CN 102945359A
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Abstract
The invention discloses a testing method and a testing device for a display panel. The testing method comprises the steps that the display panel is controlled to display corresponding preset bar codes on at least one specific region respectively; a bar code reader is controlled to take each specific region as a scanning area and read display bar codes correspondingly displaying in each specific region; whether the display bar codes corresponding to each specific region are identical to the preset bar codes is compared and judged respectively; if the display bar codes are identical to the preset bar codes, the display panel is normal; and otherwise, the display panel is abnormal. The testing method and the testing device for the display panel are matched with the bar code reader existing in the market for detecting various problems of the display panel in a simpler and more convenient mode, so that the efficiency is improved, and the manufacturing cost of the testing device for the panel is lowered.
Description
Technical field
The present invention is about a kind of proving installation and method of testing of display panel, relates in particular to a kind of proving installation and method of testing of display panel easy and simple to handle.
Background technology
Technology focuses on the functional test when producing display panel at present, even but display panel complete test of process before dispatching from the factory guarantees that the no problem of display panel own exists.Through the assembling of downstream manufacturer, behind collocation wire rod and the control circuit, still may must retest again because of the external environment impact.The problem that occur this moment is usually comparatively obvious, such as do not have picture, picture skew, resolution mistake, picture in a jumble can't identification, picture breaks or lack special light sources (such as RGB) etc.Display panel manufacturer is when the display panel of test display at present, and more is to use complicated tool, cooperates circuit to detect, and can record trickleer defective.And for these apparent in view problems, easy mode should be arranged, and reach fast display panel detection, find most problem.
Summary of the invention
Therefore, one of purpose of the present invention is to provide a kind of proving installation and method of testing of display panel, cooperate existing on the market bar-code reader, in mode more simply and easily, some problems of coming the detection display panel often to occur, with raising efficiency, and the manufacturing cost of reduction panel tester.
For reaching above-mentioned purpose, the invention provides a kind of method of testing of display panel, this method of testing comprises: control this display panel and show respectively corresponding default bar code in its at least one specific region; The control bar-code reader is respectively take each this specific region as sweep limit and read correspondence and be shown in demonstration bar code in each this specific region; Whether this demonstrations bar code that contrasts respectively and judge corresponding each this specific region is with should to preset bar code consistent, if unanimously, show that this display panel is normal; Otherwise, show that this display panel is unusual.
As optional technical scheme, this demonstration bar code with should default bar code whether the bar code color of the consistent content that comprises this demonstrations bar code, this demonstrations bar code whether consistent with content that should default bar code, this demonstrations bar code whether consistent with bar code color that should default bar code background color and background color that should default bar code whether consistent and this demonstration bar code the bar code orientation and whether be somebody's turn to do the bar code orientation of presetting bar code consistent.
As optional technical scheme, whether this demonstration bar code also comprises this show bar code bit position in this specific region and should preset the position consistency that bar code is arranged in this specific region with should default bar code consistent.
As optional technical scheme, this specific region is the arbitrary region on this display panel.
As optional technical scheme, the size of this specific region equals the size of the viewing area of this display panel.
As optional technical scheme, this default bar code is bar code or two-dimensional bar code.
The present invention also provides a kind of proving installation of display panel, this proving installation comprises bar-code reader and control module, control module and this display panel and this bar-code reader couple, this control module shows respectively corresponding default bar code in order to control this display panel in its at least one specific region, and read respectively correspondence take each this specific region as sweep limit and be shown in demonstration bar code in each this specific region in order to control bar-code reader, and in order to contrast respectively and to judge whether this demonstration bar code of corresponding each this specific region is consistent with this default bar code, if consistent, show that this display panel is normal; Otherwise, show that this display panel is unusual.
As optional technical scheme, this demonstration bar code with should default bar code whether the bar code color of the consistent content that comprises this demonstrations bar code, this demonstrations bar code whether consistent with content that should default bar code, this demonstrations bar code whether consistent with bar code color that should default bar code background color and background color that should default bar code whether consistent and this demonstration bar code the bar code orientation and whether be somebody's turn to do the bar code orientation of presetting bar code consistent.
As optional technical scheme, this specific region is the arbitrary region on this display panel.
As optional technical scheme, whether this demonstration bar code also comprises this show bar code bit position in this specific region and should preset the position consistency that bar code is arranged in this specific region with should default bar code consistent.
Compared with prior art, the invention provides a kind of proving installation and method of testing of display panel, cooperate existing on the market bar-code reader, in mode more simply and easily, some problems of coming the detection display panel often to occur.And can see through background color, bar code color, bar code scope and the size etc. that change default bar code, carry out different types of test.And the method can be integrated in the automated production process, with faster production, with raising efficiency, and can reduce the manufacturing cost of testing device of display panel.
Can be by following detailed Description Of The Invention and appended graphic being further understood about the advantages and spirit of the present invention.
Description of drawings
Figure 1 shows that the calcspar that the proving installation according to display panel of the present invention is connected with display panel;
Figure 2 shows that the schematic diagram when default bar code normally shows on display panel;
Fig. 3 A-Fig. 3 E is depicted as default bar code schematic diagram during abnormal show on display panel;
Fig. 4 A-Fig. 4 C is depicted as the schematic diagram of other change setting of default bar code;
Figure 5 shows that the process flow diagram according to the method for testing of display panel of the present invention.
Embodiment
See also Fig. 1, Figure 1 shows that the calcspar that the proving installation according to display panel of the present invention is connected with display panel.The invention provides a kind of proving installation 1 of display panel, can whether exist unusually in order to easy rapidly detection display panel 2, do not have picture such as whether existing, picture skew, resolution mistake, picture in a jumble can't identifications, picture breaks or lack the problems such as special light sources (such as RGB), the display panel 2 here for example is display panels.Proving installation 1 comprises bar-code reader 3 and control module 4, and control module 4 couples with display panel 2 and bar-code reader 3.Control module 4 shows respectively corresponding default bar code in order to control display panel 2 in its at least one specific region 6, and read respectively correspondence take each specific region 6 as sweep limit and be shown in demonstration bar code 7 in each specific region 6 in order to control bar-code reader 3, and in order to contrast respectively and to judge whether the demonstration bar code 7 of corresponding each specific region 6 is consistent with default bar code, if consistent, show that display panel 2 is normal; Otherwise, show that display panel 2 is unusual.That is to say, if display panel 2 does not exist unusually, the demonstration bar code 7 that is shown in so on the specific region 6 of display panel 2 just should be consistent with the default bar code that sets in advance, as have inconsistent situation, illustrates that then panel is unusual.Wherein specific region 6 can be the arbitrary region on the display panel 2, such as corner regions or zone line or the fringe region of display panel.In addition, in actual applications, because in fact relatively concentrating, the improper display panel damage problem that causes of assembling (do not have picture such as display panel, the picture skew, the resolution mistake, picture in a jumble can't identification, picture breaks or lacks special light sources etc.), (such as corner or the fringe region of display panel) also relatively concentrated in the zone, so the setting of 6 zones, specific region and quantity can be decided according to actual demand, whether this is also so that adopt proving installation of the present invention can detect quickly display panel to exist unusually, bring great convenience to test job.
And, when a plurality of specific region is arranged, corresponding each specific region arranges a bar-code reader respectively, utilize a plurality of bar-code readers simultaneously respectively take the specific region of correspondence as sweep limit and read the corresponding demonstration bar code that shows on it, and then contrast judge whether the demonstration bar code in the respective specific zone is consistent with default bar code.In such cases because the demonstration bar code that need to satisfy simultaneously in a plurality of specific regions is consistent with default bar code, so that the precision of test panel also can increase.
In addition, show that the unusual mode of display panel has a variety of, for example can on proving installation 1 notifying device be set, notifying device can pass through flicker, literal demonstration, mark demonstration, image, image or their combination etc. of sound, lamp, realizes the function of reporting to the police or warning.
Wherein, show bar code and default bar code whether whether consistent, the bar code color that shows bar code of the consistent content that comprises the content that shows bar code and default bar code and default bar code the bar code color whether unanimously, the background color of the background color of demonstration bar code and default bar code whether unanimously, whether the bar code orientation of the bar code orientation of demonstration bar code and default bar code consistent.For the test that makes display panel more accurate, show whether consistent position and the default bar code position consistency that be arranged in specific region of show bar code bit in the specific region that also comprise of bar code and default bar code, whether the distance on concrete each each limit of correspondence, frontier distance specific region that for example shows bar code and default bar code is consistent.See also Fig. 2 and Fig. 3 A-Fig. 3 E, Figure 2 shows that default bar code schematic diagram during normal demonstration the on display panel, Fig. 3 A-Fig. 3 E is depicted as default bar code schematic diagram during abnormal show on display panel.For example, when display panel is normal, be shown in demonstration bar code 7 its contents on the display panel 2, bar code color, background color, bar code orientation etc. all can with the state consistency of default bar code.In addition, in Fig. 3 A, display panel 2 can't display frame, namely without showing that bar code 7 is shown in the specific region 6 of display panel 2; Among Fig. 3 B, show that bar code 7 is offset, show that namely bar code 7 only has partial display in the specific region 6 of display panel 2; Among Fig. 3 C, be shown in the demonstration bar code 7 of specific region 6 imperfect or lack partial content, that is picture breakage or partial content can't show; Among Fig. 3 D, show that bar code has exceeded the scope of specific region 6, that is the resolution mistake of display panel 2; Among Fig. 3 E, show that bar code 7 is mess code, above-mentioned these situations all can correctly obtain the demonstration bar code 7 corresponding with default bar code so that bar-code reader 3 can't be that specific region 6 is interior in sweep limit, illustrate namely that also display panel 2 is unusual.In addition, also have other situations, for example, the background color of default bar code be white, bar code color for yellow, if display panel 2 can't show yellow, then bar-code reader when sweep limit is specific region 6 interior reading displayed bar code 7, can read less than.Same also can whether normal with the demonstration of other colors of this detection display panel 2, as red, green, blue etc.
In addition, see also Fig. 4 A to Fig. 4 C, Fig. 4 A to Fig. 4 C is the schematic diagram of other change setting of default bar code.Shown in Fig. 4 A, default bar code 37 also can be set as big font, and that zone on display panel 2, corresponding specific region 36 also can increase; Perhaps shown in Fig. 4 B, increase the content of default bar code 27 and show length (such as Fig. 4 B), that zone on display panel 2, corresponding specific region 26 also can increase, thereby can check on a large scale on display panel 2, can reduce scanning number of times.A special status wherein for example, the size of specific region equals the size of the viewing area of display panel 2, namely only need carry out single pass, but the fineness of corresponding test also can be less.Perhaps, see also Fig. 4 C, will preset bar code 17 and be set as small font, or shorten bar code content, so the corresponding zone of specific region 16 on display panel 2 also can reduce, thus the also different test fineness of capable of regulating.Certainly, increase the quantity of specific region 6 and the quantity of bar-code reader 3, also can strengthen the test fineness.In another embodiment, can also see through the distance of adjusting bar-code reader 3 and display panel 2, to adjust precision and examination scope.In another embodiment, the display direction of adjusting bar code be can also see through, or two-dimensional bar, the demonstration problem that can test the display panel different directions used.
See also Fig. 5, Figure 5 shows that the process flow diagram according to the method for testing of display panel of the present invention.The present invention also provides a kind of method of testing of display panel, adopt aforesaid proving installation 1 to carry out the test of display panel, can whether exist unusually in order to easy rapidly detection display panel, do not have picture such as whether existing, picture skew, resolution mistake, picture in a jumble can't identifications, picture breaks or lack the problems such as special light sources (such as RGB), the display panel here for example is display panels.Wherein method of testing may further comprise the steps:
At first, such as step S1, the control display panel shows respectively corresponding default bar code in its at least one specific region;
Then, such as step S2, the control bar-code reader is respectively take each specific region as sweep limit and read correspondence and be shown in demonstration bar code in each this specific region; And
Then, such as step S3, contrast respectively and this demonstrations bar code of judging corresponding each this specific region with whether should preset bar code consistent, if unanimously, show that in step S4 this display panel is normal; Otherwise, show that in step S5 this display panel is unusual.That is to say, if display panel 2 does not exist unusually, the demonstration bar code 7 that is shown in so on the specific region 6 of display panel 2 just should be consistent with the default bar code that sets in advance, as have inconsistent situation, illustrates that then panel is unusual.Wherein specific region 6 can be the arbitrary region on the display panel 2, such as corner regions or zone line or the fringe region of display panel.In addition, in actual applications, because in fact relatively concentrating, the improper display panel damage problem that causes of assembling (do not have picture such as display panel, the picture skew, the resolution mistake, picture in a jumble can't identification, picture breaks or lacks special light sources etc.), (such as corner or the fringe region of display panel) also relatively concentrated in the zone, so the setting of 6 zones, specific region and quantity can be decided according to actual demand, whether this is also so that adopt proving installation of the present invention can detect quickly display panel to exist unusually, bring great convenience to test job.
And, when a plurality of specific region is arranged, corresponding each specific region arranges a bar-code reader respectively, utilize a plurality of bar-code readers simultaneously respectively take the specific region of correspondence as sweep limit and read the corresponding demonstration bar code that shows on it, and then contrast judge whether the demonstration bar code in the respective specific zone is consistent with default bar code.In such cases because the demonstration bar code that need to satisfy simultaneously in a plurality of specific regions is consistent with default bar code, so that the precision of test panel also can increase.
In addition, show that the unusual mode of display panel has a variety of, for example can on proving installation 1 notifying device be set, notifying device can pass through flicker, literal demonstration, mark demonstration, image, image or their combination etc. of sound, lamp, realizes the function of reporting to the police or warning.
Wherein, show bar code and default bar code whether whether consistent, the bar code color that shows bar code of the consistent content that comprises the content that shows bar code and default bar code and default bar code the bar code color whether unanimously, the background color of the background color of demonstration bar code and default bar code whether unanimously, whether the bar code orientation of the bar code orientation of demonstration bar code and default bar code consistent.For the test that makes display panel more accurate, show whether consistent position and the default bar code position consistency that be arranged in specific region of show bar code bit in the specific region that also comprise of bar code and default bar code, whether the distance on concrete each each limit of correspondence, frontier distance specific region that for example shows bar code and default bar code is consistent.See also Fig. 2 and Fig. 3 A-Fig. 3 E, Figure 2 shows that default bar code schematic diagram during normal demonstration the on display panel, Fig. 3 A-Fig. 3 E is depicted as default bar code schematic diagram during abnormal show on display panel.For example, when display panel is normal, be shown in demonstration bar code 7 its contents on the display panel 2, bar code color, background color, bar code orientation etc. all can with the state consistency of default bar code.In addition, in Fig. 3 A, display panel 2 can't display frame, namely without showing that bar code 7 is shown in the specific region 6 of display panel 2; Among Fig. 3 B, show that bar code 7 is offset, show that namely bar code 7 only has partial display in the specific region 6 of display panel 2; Among Fig. 3 C, be shown in the demonstration bar code 7 of specific region 6 imperfect or lack partial content, that is picture breakage or partial content can't show; Among Fig. 3 D, show that bar code has exceeded the scope of specific region 6, that is the resolution mistake of display panel 2; Among Fig. 3 E, show that bar code 7 is mess code, above-mentioned these situations all can correctly obtain the demonstration bar code 7 corresponding with default bar code so that bar-code reader 3 can't be that specific region 6 is interior in sweep limit, illustrate namely that also display panel 2 is unusual.In addition, also have other situations, for example, the background color of default bar code be white, bar code color for yellow, if display panel 2 can't show yellow, then bar-code reader when sweep limit is specific region 6 interior reading displayed bar code 7, can read less than.Same also can whether normal with the demonstration of other colors of this detection display panel 2, as red, green, blue etc.
In addition, see also Fig. 4 A to Fig. 4 C, Fig. 4 A to Fig. 4 C is the schematic diagram of other change setting of default bar code.Shown in Fig. 4 A, default bar code 37 also can be set as big font, and that zone on display panel 2, corresponding specific region 36 also can increase; Perhaps shown in Fig. 4 B, increase the content of default bar code 27 and show length (such as Fig. 4 B), that zone on display panel 2, corresponding specific region 26 also can increase, thereby can check on a large scale on display panel 2, can reduce scanning number of times.A special status wherein for example, the size of specific region equals the size of the viewing area of display panel 2, namely only need carry out single pass, but the fineness of corresponding test also can be less.Perhaps, see also Fig. 4 C, will preset bar code 17 and be set as small font, or shorten bar code content, so the corresponding zone of specific region 16 on display panel 2 also can reduce, thus the also different test fineness of capable of regulating.Certainly, increase the quantity of specific region 6 and the quantity of bar-code reader 3, also can strengthen the test fineness.In another embodiment, can also see through the distance of adjusting bar-code reader 3 and display panel 2, to adjust precision and examination scope.In another embodiment, the display direction of adjusting bar code be can also see through, or two-dimensional bar, the demonstration problem that can test the display panel different directions used.
In sum, compared with prior art, the invention provides a kind of proving installation and method of testing of display panel, cooperate existing on the market bar-code reader, in mode more simply and easily, some problems of coming the detection display panel often to occur.And can see through background color, bar code color, bar code scope and the size etc. that change default bar code, carry out different types of test.And the method can be integrated in the automated production process, with faster production, with raising efficiency, and can reduce the manufacturing cost of testing device of display panel.
By the above detailed description of preferred embodiments, be to wish more to know to describe feature of the present invention and spirit, and be not to come protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the protection domain of claim of being arranged in of various changes and tool equality institute of the present invention wish application.Therefore, the protection domain of the claim that the present invention applies for should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (10)
1. the method for testing of a display panel is characterized in that this method of testing comprises
Control this display panel and show respectively corresponding default bar code in its at least one specific region;
The control bar-code reader is respectively take each this specific region as sweep limit and read correspondence and be shown in demonstration bar code in each this specific region;
Whether this demonstrations bar code that contrasts respectively and judge corresponding each this specific region is with should to preset bar code consistent, if unanimously, show that this display panel is normal; Otherwise, show that this display panel is unusual.
2. the method for testing of display panel as claimed in claim 1, it is characterized in that this demonstration bar code with should default bar code whether the bar code color of the consistent content that comprises this demonstrations bar code, this demonstrations bar code whether consistent with content that should default bar code, this demonstrations bar code whether consistent with bar code color that should default bar code background color and background color that should default bar code whether consistent and this demonstration bar code the bar code orientation and whether be somebody's turn to do the bar code orientation of presetting bar code consistent.
3. the method for testing of display panel as claimed in claim 2 is characterized in that whether consistent this demonstration bar code also comprise this show bar code bit position in this specific region and should preset the position consistency that bar code is arranged in this specific region with should default bar code.
4. the method for testing of display panel as claimed in claim 1 is characterized in that this specific region is the arbitrary region on this display panel.
5. the method for testing of display panel as claimed in claim 1 is characterized in that the size of this specific region equals the size of the viewing area of this display panel.
6. the method for testing of display panel as claimed in claim 1 is characterized in that this default bar code is bar code or two-dimensional bar code.
7. the proving installation of a display panel is characterized in that this proving installation comprises
Bar-code reader;
Control module, couple with this display panel and this bar-code reader, this control module shows respectively corresponding default bar code in order to control this display panel in its at least one specific region, and read respectively correspondence take each this specific region as sweep limit and be shown in demonstration bar code in each this specific region in order to control bar-code reader, and in order to contrast respectively and to judge whether this demonstration bar code of corresponding each this specific region is consistent with this default bar code, if consistent, show that this display panel is normal; Otherwise, show that this display panel is unusual.
8. the proving installation of display panel as claimed in claim 7, it is characterized in that this demonstration bar code with should default bar code whether the bar code color of the consistent content that comprises this demonstrations bar code, this demonstrations bar code whether consistent with content that should default bar code, this demonstrations bar code whether consistent with bar code color that should default bar code background color and background color that should default bar code whether consistent and this demonstration bar code the bar code orientation and whether be somebody's turn to do the bar code orientation of presetting bar code consistent.
9. the proving installation of display panel as claimed in claim 7 is characterized in that this specific region is the arbitrary region on this display panel.
10. the proving installation of display panel as claimed in claim 7 is characterized in that whether consistent this demonstration bar code also comprise this show bar code bit position in this specific region and should preset the position consistency that bar code is arranged in this specific region with should default bar code.
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| TWI639916B (en) * | 2013-09-18 | 2018-11-01 | 達豐（上海）電腦有限公司 | System for testing external display interface of? notebook computer and the method thereof are provided |
| CN114495773A (en) * | 2020-11-11 | 2022-05-13 | 联咏科技股份有限公司 | Method and test equipment for detecting functions of display device |
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Application publication date: 20130227 |