CN103163034A - Method for testing abrasion resistant performance of mesh spot of light guide plate - Google Patents
Method for testing abrasion resistant performance of mesh spot of light guide plate Download PDFInfo
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- CN103163034A CN103163034A CN2011104272213A CN201110427221A CN103163034A CN 103163034 A CN103163034 A CN 103163034A CN 2011104272213 A CN2011104272213 A CN 2011104272213A CN 201110427221 A CN201110427221 A CN 201110427221A CN 103163034 A CN103163034 A CN 103163034A
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Abstract
The invention relates to a method for testing the abrasion resistant performance of a mesh spot of a light guide plate. According to the method for testing the abrasion resistant performance of the mesh spot of the light guide plate, firstly, the light guide plate is subjected to high temperature aging, and a high temperature aging method is used for simulating the state of the mesh spot of the light guide plate which is used for a long time; and secondly, friction force is applied on a testing spot which is selected on the light guide plate, the testing spot of the light guide plate is rubbed back and forth, and then whether the testing spot is normal is tested. Through the testing of the abrasion resistant performance of the mesh spot of the light guide plate after the light guide plate is used for the long time, the problems that the adhesive force of the mesh spot of the light guide plate is lowered after a long time use, the mesh spot is not resistant to abrasion and prone to fall off, the abrasion resistant performance is poor and the like can be found, and therefore the good abrasion resistant performance or the poor abrasion resistant performance of the mesh spot of the light guide plate can be tested out, the problems that the mesh spot falls off, is bad, is poor in abrasion resistant performance and the like after the long time use can also be tested out, products with the problems that the mesh spot of the light guide plate may mutate so that the light guide rate of the products is poor, light passing through the light guide plate is not even and the like can be sorted out effectively, and a basis can be provided for sorting out high quality light guide plates for the development of the products.
Description
[technical field]
The present invention relates to the light guide plate mesh point method of testing, relate in particular to a kind of light guide plate mesh point abrasion resistance test method.
[background technology]
Light guide plate is widely used in the fields such as back light model setting technology and Illuminative for sign, its principle is to utilize the acryl of optical grade/PC sheet material, then with having high reflectivity and the material of extinction not, stamp the leaded light site in the acryl sheet material bottom surface of optical grade with the UV screen printing technology.The light that utilizes optical grade acryl sheet material to draw to send from lamp is in the stop on optical grade acryl sheet material surface, and when light was mapped to each leaded light site, reflected light can toward all angles diffusion, then destroy conditioned reflex and penetrate by light guide plate is positive.Light guide plate is line source to be changed into the product of area source, and the leaded light site plays key effect in changing line source into the area source process.
Light guide plate is in widespread use of all trades and professions, and whether the detection method of light guide plate quality still rests on the leaded light site stain, leak source, shortcoming, and whether area source evenly waits on basic detection aspect.Light guide plate mesh point is through after prolonged application, site adhesion may descend and even peel off, cause the homogeneity of light guide plate light guide effect variation, area source can't satisfy request for utilization, industry uses the rear problem of wearing no resistance that occurs not have effective method of testing for light guide plate mesh point is long-term, can't test the wearing quality of site, the quality after can't checking out the leaded light site through long-term the use.
[summary of the invention]
In view of this, be necessary to provide a kind of and can test the long-term light guide plate abrasion resistance test method that uses rear wearing quality of light guide plate mesh point.
A kind of light guide plate mesh point abrasion resistance test method comprises the steps:
Light guide plate is positioned in the environment of setting illumination, checks whether light guide plate mesh point is initially abnormal;
Light guide plate is positioned in incubator, and the adjustment Temperature of Warm Case is design temperature, and adjustment heat time heating time is setting-up time, starts incubator light guide plate mesh point is carried out high temperature ageing;
After completing high temperature ageing, take out light guide plate and be positioned in normal temperature standingly, make the light guide plate mechanism that returns to normal, and with light guide plate mesh point up be positioned over test platform;
Choose at least one site as test point on light guide plate;
Non-dust cloth is provided, described non-dust cloth is covered in test point and is compressed by pressure holding piece, non-dust cloth is dragged repeatedly back and forth by setting speed, the friction testing point carries out wearability test to test point;
After wearability test finishes, light guide plate is placed in the environment of setting illumination, checks again whether light guide plate has extremely, if without extremely wearing quality is good, otherwise wear no resistance.
Preferably, described light guide plate being positioned in the environment of setting illumination, check initially whether abnormal step is specially light guide plate mesh point: whether it is in the environment of 200lux that light guide plate is put in setting illumination, initially have extremely by the visual examination light guide plate mesh point.
Preferably, described design temperature is 60 degree, and described setting-up time is 240 hours.
Preferably, described light guide plate is positioned over and standingly in normal temperature is no less than 2 hours.
Preferably, described at least one site of choosing on light guide plate is specially as the step of test point: selected 5 sites are as test point, are respectively the site of distance described light guide plate 10 centimeters centre positions, four edges and described light guide plate center.
Preferably, described non-dust cloth is of a size of 9 centimetres of 9 cm x.
Preferably, described pressure holding piece adopts counterweight, and described counterweight weight is 500 grams.
Preferably, described non-dust cloth is dragged repeatedly back and forth by setting speed, the step of friction testing point is specially: mention described non-dust cloth both sides with 20mm/Sec speed, drag back and forth 100 times.
Preferably, in dragging, it is 15 ° that non-dust cloth is mentioned angle, and the counterweight displacement is 20mm.
Preferably, after described wearability test finishes, light guide plate is placed in the environment of setting illumination, check again whether light guide plate has abnormal step and be specially: light guide plate is placed in the environment that illumination is 200lux, compare with initial inspection, check again by visual whether light guide plate mesh point has extremely.
above-mentioned light guide plate mesh point abrasion resistance test method, light guide plate is carried out high temperature ageing, state after adopting high temperature ageing method simulation light guide plate mesh point through long-term the use, then test point selected on light guide plate is applied a friction force, by the light guide plate test point that rubs back and forth, whether extremely, check, the test light guide plate is in the wearing quality through light guide plate mesh point after using for a long time, find that the adhesion after the long-term use of light guide plate mesh point descends, the not wear-resisting poor problem of uniform wearability of easily peeling off, thereby test out and to occur the site after the wearing quality quality of light guide plate mesh point and long-term the use and peel off the problems such as bad uniform wearability is poor, effectively filter out light guide plate mesh point and may produce variation after through long-term the use, cause product leaded light rate variance, by the inhomogeneous defective product that waits of the light of light guide plate, select the high-quality light guide plate for product development foundation is provided, make the product can be after through long-term the use, still has higher quality level, satisfy the long-term demand of using of client.Simultaneously also be of value to the fiduciary level that improves product, produce reliably and can improve the popularity of brand for the long-term product of client, make product have the higher market competitiveness.
[description of drawings]
Fig. 1 is the process flow diagram of light guide plate abrasion resistance test method in an embodiment.
[embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the process flow diagram of light guide plate abrasion resistance test method in an embodiment.The method comprises:
S10: light guide plate is positioned in the environment of setting illumination, checks whether light guide plate mesh point is initially abnormal.
Before light guide plate is tested, at first light guide plate is carried out the Ordinary fruit quality inspection, confirm the situation of the front site of light guide plate test, warranty test validity.Whether be specially: it is in the environment of 200lux that light guide plate is placed on setting illumination, initially have stain, leak source, shortcoming etc. abnormal by the visual examination light guide plate mesh point.Further, the line item of going forward side by side is as original records.
S20: light guide plate is positioned in incubator, and the adjustment Temperature of Warm Case is design temperature, and adjustment heat time heating time is setting-up time, starts incubator light guide plate mesh point is carried out high temperature ageing.
After light guide plate has checked, light guide plate is placed in incubator, the heating setpoint test duration under design temperature, carries out high temperature ageing.Through after high temperature ageing, the adhesion between light guide plate mesh point mechanism, light guide plate mesh point and light guide plate may produce variation, simulates light guide plate mesh point through after using for a long time by high temperature ageing, the variation that may occur.
In this embodiment, light guide plate is positioned in incubator, adjust Temperature of Warm Case to design temperature, adjusting incubator heat time heating time is the schedule time, the step of light guide plate mesh point being carried out the high temperature ageing test is specially: light guide plate is positioned in incubator, Temperature of Warm Case is adjusted into 60 ℃ (design temperatures), and adjusting heat time heating time is 240 hours (setting-up time), starts incubator and carries out high temperature ageing.
S30: after completing high temperature ageing, take out light guide plate and be positioned in normal temperature standingly, make the light guide plate mechanism that returns to normal, and with light guide plate mesh point up be positioned over test platform.
After completing high temperature ageing, need to be in normal temperature standing certain hour, make the light guide plate mesh point mechanism that returns to normal.Be specially: the light guide plate sample is taken out from incubator, be positioned over and standingly in normal temperature be no less than 2 hours, and light guide plate mesh point is positioned over test platform up.
S40: choose at least one site as test point on light guide plate.
Light guide plate mesh point returns to normal after mechanism, and selected at least one site is as test point, conveniently to carry out wearability test on light guide plate.In this embodiment, selected 5 sites are as test point, are respectively the site apart from light guide plate four centre positions, 10mm place, edge and light guide plate center.
S50: a non-dust cloth is provided, non-dust cloth is covered in test point and is compressed by pressure holding piece, non-dust cloth is dragged repeatedly back and forth by setting speed, the friction testing point carries out wearability test to test point.
In this embodiment, the non-dust cloth tiling of getting a clean ultrafine fiber of size 9cm * 9cm is covered on test point.Pressure holding piece adopts counterweight, and counterweight can easily be known quality.The quality of counterweight is 500g, and counterweight is positioned over position, non-dust cloth upper surface middle.
Non-dust cloth is dragged repeatedly back and forth by setting speed, and the step of friction testing point is specially: mention non-dust cloth both sides and drag back and forth 100 times with 20mm/Sec speed (setting speed).Drag in process, it is 15 ° that non-dust cloth is mentioned angle, and the counterweight displacement is 20mm, and test point is carried out wearability test.
S60: after wearability test finishes, light guide plate is placed in the environment of setting illumination, checks again whether light guide plate has extremely, if without extremely wearing quality is good, otherwise wear no resistance.
After wearability test is completed, light guide plate is placed in the environment that illumination is 200lux, compare with initial inspection, check again by visual whether light guide plate mesh point has stain, leak source, shortcoming etc. extremely, if without extremely wearing quality is good, otherwise wear no resistance, thereby the wearing quality of understanding light guide plate mesh point is fine or not.
the method, light guide plate is carried out high temperature ageing, state after adopting high temperature ageing method simulation light guide plate mesh point through long-term the use, then test point selected on light guide plate is applied a friction force, by the light guide plate test point that rubs back and forth, whether extremely, check, the test light guide plate is in the wearing quality through light guide plate mesh point after using for a long time, find that the adhesion after the long-term use of light guide plate mesh point descends, the not wear-resisting poor problem of uniform wearability of easily peeling off, thereby test out and to occur the site after the wearing quality quality of light guide plate mesh point and long-term the use and peel off the problems such as bad uniform wearability is poor, effectively filter out light guide plate mesh point and may produce variation after through long-term the use, cause product leaded light rate variance, by the inhomogeneous defective product that waits of the light of light guide plate, select the high-quality light guide plate for product development foundation is provided, make the product can be after through long-term the use, still has higher quality level, satisfy the long-term demand of using of client, also be of value to simultaneously the fiduciary level that improves product, producing reliably can be for the long-term product of client, improve the popularity of brand, make product have the higher market competitiveness.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a light guide plate mesh point abrasion resistance test method, comprise the steps:
Light guide plate is positioned in the environment of setting illumination, checks whether light guide plate mesh point is initially abnormal;
Light guide plate is positioned in incubator, and the adjustment Temperature of Warm Case is design temperature, and adjustment heat time heating time is setting-up time, starts incubator light guide plate mesh point is carried out high temperature ageing;
After completing high temperature ageing, take out light guide plate and be positioned in normal temperature standingly, make the light guide plate mechanism that returns to normal, and with light guide plate mesh point up be positioned over test platform;
Choose at least one site as test point on light guide plate;
Non-dust cloth is provided, described non-dust cloth is covered in test point and is compressed by pressure holding piece, non-dust cloth is dragged repeatedly back and forth by setting speed, the friction testing point carries out wearability test to test point;
After wearability test finishes, light guide plate is placed in the environment of setting illumination, checks again whether light guide plate has extremely, if without extremely wearing quality is good, otherwise wear no resistance.
2. light guide plate mesh point abrasion resistance test method according to claim 1, it is characterized in that, describedly light guide plate is positioned in the environment of setting illumination, check initially whether abnormal step is specially light guide plate mesh point: whether it is in the environment of 200lux that light guide plate is put in setting illumination, initially have extremely by the visual examination light guide plate mesh point.
3. light guide plate mesh point abrasion resistance test method according to claim 1, is characterized in that, described design temperature is 60 degree, and described setting-up time is 240 hours.
4. light guide plate mesh point abrasion resistance test method according to claim 1, is characterized in that, described light guide plate is positioned over and standingly in normal temperature is no less than 2 hours.
5. light guide plate mesh point abrasion resistance test method according to claim 1, it is characterized in that, described at least one site of choosing on light guide plate is specially as the step of test point: selected 5 sites are as test point, are respectively the site of distance described light guide plate 10 centimeters centre positions, four edges and described light guide plate center.
6. light guide plate mesh point abrasion resistance test method according to claim 1, is characterized in that, described non-dust cloth is of a size of 9 centimetres of 9 cm x.
7. light guide plate mesh point abrasion resistance test method according to claim 6, is characterized in that, described pressure holding piece adopts counterweight, and described counterweight weight is 500 grams.
8. light guide plate mesh point abrasion resistance test method according to claim 7, it is characterized in that, described non-dust cloth is dragged repeatedly back and forth by setting speed, the step of friction testing point is specially: mention described non-dust cloth both sides with 20mm/Sec speed, drag back and forth 100 times.
9. light guide plate mesh point abrasion resistance test method according to claim 8, is characterized in that, in dragging, it is 15 ° that non-dust cloth is mentioned angle, and the counterweight displacement is 20mm.
10. light guide plate mesh point abrasion resistance test method according to claim 1, it is characterized in that, after described wearability test finishes, light guide plate is placed in the environment of setting illumination, check again whether light guide plate has abnormal step and be specially: light guide plate is placed in the environment that illumination is 200lux, compare with initial inspection, check again by visual whether light guide plate mesh point has extremely.
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| CN2011104272213A CN103163034A (en) | 2011-12-19 | 2011-12-19 | Method for testing abrasion resistant performance of mesh spot of light guide plate |
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| CN2011104272213A CN103163034A (en) | 2011-12-19 | 2011-12-19 | Method for testing abrasion resistant performance of mesh spot of light guide plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113075117A (en) * | 2021-04-01 | 2021-07-06 | 汕头超声显示器技术有限公司 | Aging method of display screen plastic cover plate |
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| CN201707276U (en) * | 2010-06-23 | 2011-01-12 | 昆山意力电路世界有限公司 | Test instrument for testing wear resistance of printing ink |
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| CN201707276U (en) * | 2010-06-23 | 2011-01-12 | 昆山意力电路世界有限公司 | Test instrument for testing wear resistance of printing ink |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113075117A (en) * | 2021-04-01 | 2021-07-06 | 汕头超声显示器技术有限公司 | Aging method of display screen plastic cover plate |
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Application publication date: 20130619 |