A bracket for polarizer durability testing

Abstract

This utility model discloses a bracket for polarizer durability testing, relating to the field of polarizer testing technology. It includes an outer frame, horizontal and vertical slots, an upper serrated strip, a lower serrated strip, and a lower serrated strip carrier. The upper serrated strip has screw holes at both ends and is fixed to both sides of the outer frame through the horizontal slots. The lower serrated strip carrier moves along the vertical slots through the lower serrated strip carrier screw holes, and the lower serrated strip is fixed to the carrier through the lower serrated strip screw holes. By increasing the number of upper, lower, and lower serrated strips, this utility model can simultaneously place durability sheets of different sizes on the testing bracket, avoiding batch number confusion after multiple sampling observations, improving the stability and space utilization of the sheets in the testing environment, and further enhancing the efficiency of polarizer durability testing.

Description

Technical Field

[0001] This utility model relates to the field of polarizer testing technology, and in particular to a bracket for polarizer durability testing. Background Technology

[0002] Various defects can occur on the surface of polarizers during the manufacturing process. These defects can be directly detected by machines and manual inspection, and the process can be improved in a timely manner to eliminate them. However, a good appearance is only part of the quality control of polarizers. The polarizers also need to be screened to test their durability. Durability testing is an essential quality control step in polarizer manufacturing.

[0003] Polarizer durability testing typically involves attaching a polarizer of a specific size to a glass plate or LCD screen, followed by defoaming and removal of the protective film, before finally immersing the sample in the experimental environment. Common durability conditions include 80℃, -40℃, 60℃×90%RH, and alternating hot and cold temperatures from -40℃ to 80℃. Depending on the manufacturer's requirements, the polarizer must be placed in these environments for at least 240 hours, and its appearance should not differ significantly from before placement to pass the test. In addition, after durability testing, the polarizer must undergo optical tests, such as changes in polarization degree, transmittance, and chromatic difference, ensuring that these changes remain within a relatively small range.

[0004] In the polarizer manufacturing process, the quality department needs to conduct durability tests on each roll or specific roll of polarizer produced. The number of polarizers requiring testing is large, and the glass sheets or LCD glass needed for visual observation are relatively large to simulate the usage scenarios of the display screen. However, the glass sheets used for optical durability testing are only about 25×25 mm, and all rolls in the same batch need to undergo these tests. These sheets are difficult to place on ordinary racks, and the space in the environmental chamber is limited, leading to problems such as vibration, poor stability, material disorder, and low space utilization. Therefore, it is necessary to design a polarizer durability testing rack that can hold multiple glass sheet sizes to optimize the equipment's ability to place samples and improve testing stability during polarizer durability testing, enabling stable testing of polarizers from different batches in different experimental environmental chambers. Utility Model Content

[0005] This utility model provides a bracket for polarizer durability testing, which can solve the problems in the prior art where the sheet is difficult to place on ordinary racks, and the environmental chamber space is limited, which easily leads to shaking, poor stability, material disorder and low space utilization.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A bracket for polarizer durability testing includes an outer frame, horizontal strip holes, vertical strip holes, an upper serrated strip, a lower serrated strip, and a lower serrated strip carrier. The upper serrated strip has upper serrated strip screw holes at both ends and is fixed to both sides of the outer frame through the horizontal strip holes. The lower serrated strip carrier moves along the vertical strip holes through the lower serrated strip carrier screw holes, and the lower serrated strip is fixed to the lower serrated strip carrier through the lower serrated strip screw holes.

[0008] As a further embodiment of this utility model: the outer frame of the bracket has four vertical strip holes on both sides, and the lower serrated strip carrier moves up and down along the vertical strip holes to fit a smaller glass sheet.

[0009] As a further embodiment of this utility model: the lower serrated rack carrier is a vertical structure, including a horizontal strip hole. One side of the lower serrated rack carrier is fixed to the vertical strip hole through the lower serrated rack carrier screw hole, and the horizontal strip hole on the other side can fix the lower serrated rack screw hole. The two ends of the lower serrated rack are connected to the lower serrated rack screw hole, and the two are in a vertical structure. The two ends of the lower serrated rack can be fixed to the lower serrated rack carrier through the lower serrated rack screw hole, which can realize the movement of the lower serrated rack in the direction of the vertical strip hole.

[0010] If testing small glass sheets, upper serrated strips, lower serrated strips, and lower serrated strip carriers can be added to both sides of the support frame. The support method is the same as that for large glass sheets, so that large and small glass sheets can be tested simultaneously.

[0011] As a further embodiment of this utility model: the width of the upper and lower serrated strips is greater than the thickness of the glass sheet, which makes it easy to put the glass directly into the support device from top to bottom. The material of the serrations is high-temperature resistant plastic or rubber, which will not be affected by harsh environmental conditions. The serrations and the glass sheet will collide and rub against each other during the test. The serration material with lower hardness will greatly reduce the risk of glass breakage.

[0012] As a further embodiment of this utility model: the outer frame of the bracket is provided with hand-held holes on both sides for easy carrying of the bracket. Quality personnel can directly carry the bracket after placing the glass plate. The outer frame of the bracket can also be equipped with a heat insulation device to prevent personnel from being burned when taking it out directly after high temperature conditions.

[0013] As a further embodiment of this utility model: the outer frame of the bracket is made of stainless steel, which is suitable for high temperature and high humidity environments and will not rust or corrode. Its length, width and height can be adjusted according to the actual use environment space, or its length, width and height can be customized according to the glass plate size and the space of the environmental chamber, so as to maximize the use of the environmental chamber space to meet the needs of a large number of polarizer tests.

[0014] As a further embodiment of this utility model: the horizontal strip holes are arranged on both sides of the outer frame of the bracket, and the number is at least two.

[0015] As a further embodiment of this utility model: the bottom of the bracket outer frame can be provided with anti-slip pads or support feet, and the surface of the bracket outer frame is provided with a heat insulation layer. The provision of anti-slip pads or support feet further enhances the stability of the bracket and prevents it from sliding or tipping over during testing. The provision of the heat insulation layer further reduces the risk of operation in high-temperature environments.

[0016] As a further embodiment of this utility model: the lower serrated strip is positioned at any position in the horizontal strip hole and at least two strips are provided, supporting the glass sheet below and working together with the upper serrated strip to support the glass sheet.

[0017] As a further aspect of this invention, the number of upper and lower serrated strips is at least four, which can support simultaneous testing of multiple pieces of glass and improve efficiency.

[0018] The beneficial effects of this utility model are:

[0019] (1) This utility model achieves effective fixing of glass sheets of any size by setting up an upper serrated strip, an upper serrated strip screw hole, a horizontal strip hole, a vertical strip hole, a lower serrated strip, a lower serrated strip carrier, a lower serrated strip carrier screw hole and a lower serrated strip screw hole, thereby saving space. In addition, by increasing the number of upper serrated strips, lower serrated strips and lower serrated strip carriers, durable sheets of different sizes can be placed on the test bracket at the same time, avoiding the confusion of batch numbers after most sampling observations. At the same time, the bracket improves the stability of the sheet in the test environment and the space utilization rate, further improving the efficiency of polarizer durability testing.

[0020] (2) By setting hand-held holes and bracket outer frame, this utility model not only makes it easy to carry stably, but also saves manufacturing materials, reduces costs, and further improves the practical application capability of the bracket device. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of a bracket for polarizer durability testing according to this utility model;

[0023] Figure 2 This is a front view schematic diagram of a bracket for polarizer durability testing according to this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Upper serrated blade; 2. Upper serrated blade screw hole; 3. Horizontal strip hole; 4. Vertical strip hole; 5. Lower serrated blade; 6. Lower serrated blade carrier plate; 7. Lower serrated blade carrier plate screw hole; 8. Handheld hole; 9. Outer frame of bracket; 10. Glass plate; 11. Lower serrated blade screw hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figures 1-2 As shown, this utility model is a bracket for polarizer durability testing, including an upper serrated bar 1, an upper serrated bar screw hole 2, a horizontal strip hole 3, a vertical strip hole 4, a lower serrated bar 5, a lower serrated bar carrier plate 6, a lower serrated bar carrier plate screw hole 7, a bracket outer frame 9, a glass plate 10, and a lower serrated bar screw hole 11. This device can effectively fix a polarizer durability glass plate of a specific size by positioning the upper serrated bar 1 and the lower serrated bar 5 through its internal structure.

[0030] By increasing the number of upper serrated bars 1, lower serrated bars 5, and lower serrated bar carrier plates 6, and by adjusting the positions of the serrated bars and carrier plates in conjunction with the horizontal strip holes 3 and vertical strip holes 4 in the outer frame 9 of the bracket, polarizer durable glass plates of different sizes can be placed in the same outer frame 9 of the bracket to meet the carrier requirements for polarizer durability appearance testing and optical testing.

[0031] This bracket can be customized with serrated strips and bracket frame specifications to meet the testing needs of polarizers of various sizes and quantities.

[0032] like Figure 1 The image shows a practical example of this utility model being applied in actual production. After the polarizer roll is produced and the curing time has expired, quality inspectors will cut and sample rolls of specific batches and mark each batch of polarizer. The dimensions for durability and appearance testing are different from those for optical testing, for example, 250×170 mm (glass sheet 297×210 mm) and 15×15 mm (glass sheet 25×25 mm) respectively. Each roll to be tested must be cut in this way, and the release film is removed and attached to the glass sheet one by one.

[0033] After all samples are bonded, prepare four durability testing stands, corresponding to environmental chambers with conditions of 80℃, -40℃, 60℃×90%RH, and -40℃~80℃ respectively. Place the samples into the durability testing stands in sequence. For example, place polarizing glass sheets with batch numbers 1 to 10 into the stands from left to right. The upper serrated bar 1 and the lower serrated bar 5 can then fix each sample in place. This stand can also hold sheets that entered the environmental chamber at different times. Samples from different times only need to be separated by one serrated hole, making them easily visible and quick to locate when they are taken out for observation.

[0034] For different glass slide sizes, a 297×210 mm glass slide is placed in the middle of the support and secured with a set of upper serrated bars 1 and lower serrated bars 5. The upper serrated bar 1 is positioned in the horizontal slot 3 through the upper serrated bar screw hole 2. Below the support is a set of lower serrated bar carrier plates 6, which are secured to the lower serrated bars 5 through the lower serrated bar carrier plate screw hole 7. At this point, the large glass slide is firmly supported. A 25×25 mm glass slide is placed on either side of the large glass slide. Taking placement on one side as an example, an additional set of upper serrated bars 1, a set of lower serrated bars 5, and a set of lower serrated bar carrier plates 6 are needed. The lower serrated bar carrier plates 6 are then moved upwards along the vertical slot 4 to accommodate the 25×25 mm glass slide. This support allows large and small polarizing glass slides from the same batch to be placed parallel to the horizontal slot 3, preventing sample confusion and facilitating retrieval.

[0035] After the samples were placed, the personnel used the handheld port 8 to place them in the defoaming machine for high-pressure defoaming. After the defoaming was completed, the brackets were removed and the protective films on the samples were peeled off one by one. Finally, the four brackets were put into their respective environmental chambers for durability testing.

[0036] When the experiment reaches a specific time, this support can be easily removed for testing and reused. It is highly stable and eliminates the risk of sample drop and damage. Furthermore, it facilitates easy location of the sample to be tested and prevents confusion.

[0037] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A bracket for polarizer durability testing, characterized in that, The bracket includes an outer frame (9), a horizontal strip hole (3), a vertical strip hole (4), an upper serrated bar (1), a lower serrated bar (5), and a lower serrated bar carrier plate (6). The upper serrated bar (1) has upper serrated bar screw holes (2) at both ends and is fixed to both sides of the outer frame (9) through the horizontal strip hole (3). The lower serrated bar carrier plate (6) moves along the vertical strip hole (4) through the lower serrated bar carrier plate screw hole (7), and the lower serrated bar (5) is fixed to the lower serrated bar carrier plate (6) through the lower serrated bar screw hole (11).

2. The polarizer durability testing bracket according to claim 1, characterized in that, The outer frame (9) of the bracket has four vertical strip holes (4) on both sides, and the lower serrated strip carrier (6) moves up and down along the vertical strip holes (4).

3. The polarizer durability testing bracket according to claim 1, characterized in that, The lower saw blade carrier (6) has a vertical structure, and the two ends of the lower saw blade (5) are connected to the lower saw blade screw holes (11), and the two are in a vertical structure.

4. The polarizer durability testing bracket according to claim 1, characterized in that, The width of the upper serrated bar (1) and the lower serrated bar (5) is greater than the thickness of the glass sheet (10).

5. A polarizer durability testing bracket according to claim 1, characterized in that, The outer frame (9) of the bracket is provided with handheld holes (8) on both sides to facilitate carrying the bracket.

6. The polarizer durability testing bracket according to claim 1, characterized in that, The outer frame (9) of the bracket is made of stainless steel, and its length, width and height can be adjusted according to the actual use environment space.

7. A polarizer durability testing bracket according to claim 1, characterized in that, The horizontal strip holes (3) are provided on both sides of the outer frame (9) of the bracket, and there are at least two of them.

8. A polarizer durability testing bracket according to claim 1, characterized in that, The bottom of the bracket outer frame (9) may be provided with anti-slip pads or support feet, and the surface of the bracket outer frame (9) is provided with a heat insulation layer.

9. A polarizer durability testing bracket according to claim 3, characterized in that, The lower sawtooth (5) is positioned at any position in the horizontal strip hole (3) and at least two of them are provided.

10. A polarizer durability testing bracket according to claim 1, characterized in that, The number of the upper serrated bar (1) and the lower serrated bar (5) is at least four.

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