CN113063498A - Large-size lighting chromatic aberration defect contrast card inspection method - Google Patents
Large-size lighting chromatic aberration defect contrast card inspection method Download PDFInfo
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- CN113063498A CN113063498A CN202110323846.9A CN202110323846A CN113063498A CN 113063498 A CN113063498 A CN 113063498A CN 202110323846 A CN202110323846 A CN 202110323846A CN 113063498 A CN113063498 A CN 113063498A
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- 238000007689 inspection Methods 0.000 title claims abstract description 53
- 230000007547 defect Effects 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000004075 alteration Effects 0.000 title description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010047531 Visual acuity reduced Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
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- Spectroscopy & Molecular Physics (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
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Abstract
The large-size lighting color difference defect comparison card inspection method comprises the steps of fixing a touch screen and an observation plate → lighting the touch screen → lighting a jig → moving the observation plate for inspection → determining defects by a color card, and comprises the following inspection tools: the method comprises four steps of a black and gray color difference comparison card, a lighting fixture, a touch screen, an observation plate and a fixed movable frame. The invention relates to a touch screen factory, a laminating factory and a terminal factory, which can copy and convey to an inspector without difference by establishing color card control points of black pictures and gray pictures through changing a limit sample mode, wherein the inspector finds that color difference is difficult to judge during inspection, and can place a color card in front of a lighted touch screen for comparison, so that whether the color card is qualified or not can be accurately judged, and meanwhile, the color card is fixed on a movable frame through an observation plate, and moves from top to bottom and from left to right, so that the time for the inspector to visually observe an area can be balanced, the omission ratio is reduced, and the detection efficiency of the inspector is improved.
Description
Technical Field
The invention relates to the technical field of touch screens, in particular to a large-size lighting chromatic aberration defect comparison card inspection method.
Background
The touch screen is a display tool which displays a certain electronic file on the screen through a specific transmission device and reflects the electronic file to human eyes, the color difference of the touch screen needs to be detected in the production and manufacturing process of the touch screen, however, the color difference of the touch screen is transmitted by a limit sample signing mode in touch screen manufacturers, attaching manufacturers and terminal ODM manufacturers, the information of difference is transmitted when each party copies a sample, the difference occurs after the color difference limit sample is copied, an inspector judges whether a detected product is qualified or not through observing the condition of the limit sample, a large difference occurs, the inspection effect and efficiency of the touch screen are affected, meanwhile, the time of an area observed by naked eyes of the inspector is unbalanced, the inspection visual angle is unstable, the omission is caused, and the dispute of the product after the product is delivered is caused.
Disclosure of Invention
The invention aims to provide a method for inspecting a large-size lighting color difference defect comparison card, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the large-size lighting color difference defect comparison card inspection method comprises the steps of fixing a touch screen and an observation plate → lighting the touch screen → lighting a jig → moving the observation plate for inspection → determining defects by a color card, and comprises the following inspection tools: black and grey colour difference contrast card, lighting fixture, touch-sensitive screen, observation board, fixed removal frame include following four steps:
the method comprises the following steps: placing a sample (a touch screen) on a fixed movable frame, and installing an observation plate (the edge is black and the observation hole is hollowed out by 15cm to 15 cm) 5cm in front of the touch screen;
step two: the lighting touch screen (under black and gray frames) and the lighting fixture (for the inspection of 800-1200 LUX fluorescent lamps);
step three: the observation plate is moved from top to bottom and from left to right to observe the defects of the touch screen, and when the color difference is found to be difficult to judge, the judgment can be carried out by adopting a color difference comparison card;
step four: the color difference comparison card is placed before the lighted touch screen for comparison, so that whether the touch screen is qualified or not can be accurately judged.
Further, the eyes of the observer are within 80-100 cm of the touch screen to observe the lighting defects, and the observer checks the front face of the touch screen at positions of 45 degrees up, down, left and right.
Further, the observation plate moves from top to bottom and from left to right on the fixed movable frame, so that an inspector can be required to observe and light up defects from top to bottom and from left to right, and the time for the inspector to visually observe the region is balanced.
Furthermore, the color difference comparison cards are divided into a black picture color difference comparison card and a gray picture color difference comparison card, and the black picture color difference comparison card and the gray picture color difference comparison card can be selected for comparison according to color difference.
Compared with the prior art, the invention has the beneficial effects that: the large-size lighting color difference defect comparison card inspection method changes a limit sample mode, relates to a touch screen factory, a laminating factory and a terminal factory, can copy and convey color card control points of black pictures and gray pictures without difference, inspectors find that color difference is difficult to judge during inspection, and can place a color card in front of a lighted touch screen for comparison, so that whether the color card is qualified can be accurately judged, the problem that products are disputed after shipment due to perceptual judgment of the inspectors according to limit samples is avoided, meanwhile, the inspection panel is fixed on a movable frame and moves from top to bottom and from left to right, the inspectors can be required to observe lighting defects from top to bottom and from left to right, the inspection time of the inspectors for observing the region by naked eyes can be balanced, and the observation fatigue can be effectively solved, the observation area is neglected, the missing rate is reduced, and the detection efficiency of inspectors is improved.
Drawings
FIG. 1 is a schematic view of the operation flow of the large-size lighting color difference defect comparison card inspection method of the present invention;
FIG. 2 is a schematic diagram of a black image color difference comparison card of the large-size lighting color difference defect comparison card inspection method of the present invention;
FIG. 3 is a schematic diagram of a gray picture color difference comparison card of the large-size lighting color difference defect comparison card inspection method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, an embodiment of the present invention: the large-size lighting color difference defect comparison card inspection method comprises the steps of fixing a touch screen and an observation plate → lighting the touch screen → lighting a jig → moving the observation plate for inspection → determining defects by a color card, and comprises the following inspection tools: black and grey colour difference contrast card, lighting fixture, touch-sensitive screen, observation board, fixed removal frame include following four steps:
the method comprises the following steps: placing a sample (a touch screen) on a fixed movable frame, and installing an observation plate (the edge is black and the observation hole is hollowed out by 15cm to 15 cm) 5cm in front of the touch screen;
step two: lighting a touch screen (under black and gray frames) and a lighting fixture (for inspection in 800-1200 LUX fluorescent lamps);
step three: from top to bottom, the observation board is moved from left to right to observe the defects of the touch screen, and when the color difference is found to be difficult to judge, a color difference comparison card can be adopted to judge;
step four: the color difference comparison card is placed before the lighted touch screen for comparison, and whether the touch screen is qualified or not can be accurately judged.
Furthermore, the eyes of the observer are 80-100 cm away from the touch screen to observe the lighting defects, the distance between the eyes of the observer and the touch screen is controlled, the observer can conveniently observe the lighting defects of the touch screen, the observer can inspect the front upper, lower, left and right positions of the touch screen at 45 degrees, poor vision caused by light reflection of the touch screen can be effectively avoided by observing the touch screen at 45 degrees, and the searching efficiency of the lighting defects of the touch screen is improved.
Furthermore, the observation plate moves from top to bottom on the fixed movable frame and moves from left to right in a left-to-right mode, so that an inspector can be required to observe and light the defects from top to bottom from left to right, the inspector can inspect the defects according to the requirements from top to bottom and from left to right, the time of the visual observation area of the inspector can be balanced, the problems of observation fatigue and unstable observation area are effectively solved, the omission ratio is reduced, and the detection efficiency of the inspector is improved.
Furthermore, the color difference comparison card is divided into a black picture color difference comparison card and a gray picture color difference comparison card, so that an inspector observes defects of the touch screen, and can take the color card to place in front of the lighted touch screen for comparison, and the inspector can conveniently and accurately judge whether the touch screen is qualified.
Example 2
Firstly, a touch screen inspection step:
the touch screen is widely used, lighting defects of the touch screen need to be checked during quality inspection of the touch screen so as to ensure the factory yield of the touch screen, and the inspection steps mainly comprise fixing of the touch screen and fixing of an observation plate, inspection conditions, inspection, color difference card comparison and the like.
1. Fixing of touch screen and fixing of observation plate
1.1 fixation of touch screens
When the touch screen is inspected, the touch screen needs to be fixed, the touch screen is prevented from moving when being inspected, detection results are influenced, and the touch screen needs to be inspected again, so that the inspection efficiency of the touch screen is influenced, the touch screen needs to be fixed before being inspected, the stability of the touch screen during inspection is guaranteed, and the inspection efficiency of the touch screen is improved.
1.2 fixation of the viewing plate
Because the time of the visual observation area of the inspector is unbalanced, the inspection sequence is required to be from top to bottom and from left to right, the actual inspector is difficult to realize, and the inspection visual angle is unstable, so that the condition of missing inspection is caused, an observation plate is required to be arranged 5cm in front of the touch screen and is fixed on the movable frame, and the inspector can observe the lighting defect of the touch screen according to the requirements from top to bottom and from left to right.
2. Examination conditions
When examining the touch-sensitive screen, need guarantee that the inspection condition is fit for the inspection standard, avoid the inspection condition to exert an influence to the inspection result, must definitely require the inspection condition scope admittedly, reduce the error rate of inspection, fully do the preparation work before the piece inspection simultaneously, for example, prevent that inspection personnel from carrying static, lead to static to carry the definition that the dust influences the touch-sensitive screen to influence inspection personnel and light the observation of defect to the screen, the inspection condition includes following aspect:
2.1, visual inspection requirement: the eye distance of the examiner to the touch screen is in the range of 80cm-100 cm.
2.2, visual range: the 45 position of the front of the touch screen is checked.
2.3, environmental requirements: the test was carried out under a daylight lamp of 800-1200 LUX.
2.4, need to wear cotton gloves or finger stall and antistatic hand ring before carrying out the inspection.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The large-size lighting color difference defect comparison card inspection method comprises the steps of fixing a touch screen and an observation plate → lighting the touch screen → lighting a jig → moving the observation plate for inspection → determining defects by a color card, and comprises the following inspection tools: black and grey colour difference contrast card, lighting fixture, touch-sensitive screen, observation board, fixed removal frame, its characterized in that: the method comprises the following four steps:
the method comprises the following steps: placing a sample (a touch screen) on a fixed movable frame, and installing an observation plate (the edge is black and the observation hole is hollowed out by 15cm to 15 cm) 5cm in front of the touch screen;
step two: the lighting touch screen (under black and gray frames) and the lighting fixture (for the inspection of 800-1200 LUX fluorescent lamps);
step three: the observation plate is moved from top to bottom and from left to right to observe the defects of the touch screen, and when the color difference is found to be difficult to judge, the judgment can be carried out by adopting a color difference comparison card;
step four: the color difference comparison card is placed before the lighted touch screen for comparison, so that whether the touch screen is qualified or not can be accurately judged.
2. The large-size lighting color difference defect contrast card inspection method of claim 1, wherein: the eyes of the observer are 80cm-100cm away from the touch screen to observe the lighting defects, and the observer checks the front face of the touch screen at the positions of 45 degrees up, down, left and right.
3. The large-size lighting color difference defect contrast card inspection method of claim 1, wherein: the observation plate moves from top to bottom and from left to right on the fixed movable frame, so that an inspector can be required to observe and light up defects from top to bottom and from left to right, and the time for the inspector to visually observe the region is balanced.
4. The large-size lighting color difference defect contrast card inspection method of claim 1, wherein: the color difference comparison card is divided into a black picture color difference comparison card and a gray picture color difference comparison card, and the black picture color difference comparison card and the gray picture color difference comparison card can be selected for comparison according to color difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323846.9A CN113063498A (en) | 2021-03-26 | 2021-03-26 | Large-size lighting chromatic aberration defect contrast card inspection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110323846.9A CN113063498A (en) | 2021-03-26 | 2021-03-26 | Large-size lighting chromatic aberration defect contrast card inspection method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005326471A (en) * | 2004-05-12 | 2005-11-24 | Seiko Epson Corp | Focus adustment method and device, and display inspection method and device |
| CN102124723A (en) * | 2008-04-28 | 2011-07-13 | 凯顿彩色技术有限公司 | Method and device for the true-to-original representation of colors on screens |
| CN104964745A (en) * | 2015-07-20 | 2015-10-07 | 京东方科技集团股份有限公司 | Screen pressing yellowing determination method and determination device |
| US20160206192A1 (en) * | 2015-01-16 | 2016-07-21 | Canon Kabushiki Kaisha | Arithmetic processor and control method thereof |
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2021
- 2021-03-26 CN CN202110323846.9A patent/CN113063498A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005326471A (en) * | 2004-05-12 | 2005-11-24 | Seiko Epson Corp | Focus adustment method and device, and display inspection method and device |
| CN102124723A (en) * | 2008-04-28 | 2011-07-13 | 凯顿彩色技术有限公司 | Method and device for the true-to-original representation of colors on screens |
| US20160206192A1 (en) * | 2015-01-16 | 2016-07-21 | Canon Kabushiki Kaisha | Arithmetic processor and control method thereof |
| CN104964745A (en) * | 2015-07-20 | 2015-10-07 | 京东方科技集团股份有限公司 | Screen pressing yellowing determination method and determination device |
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Application publication date: 20210702 |