A structure for improving the delamination of polarizers after low-temperature drop of the whole device
By baking the polarizer monomer in the display screen at high temperature, it improves its PSA cohesion, and solves the problem of poor polarizer layering under low temperature conditions, and improves product stability and production uniformity.
Patent Information
- Application Number
- CN202420799146.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Under low temperature conditions, the PSA-interface adhesion of the polarizer is insufficient, resulting in a decrease in PSA adhesion between the APF and the TAC surface, which then forms a layer upon drop, affecting the quality of the watermark.
By baking the polarizer monomer at a high temperature of 80°C before assembly, its PSA cohesion is improved, thereby improving the drop performance under low temperature conditions. The specific implementation method includes using a base and an aluminum foil sleeve structure to fix the polarizer through a mounting mechanism to ensure uniform heating.
This method significantly improves the problem of poor layering of polarizers with low temperature drop in the whole machine, and improves product stability and mass production uniformity.
Smart Images
Figure CN222747764U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screens, in particular to a structure for improving the delamination of polarizing sheets of a whole device when it falls at low temperatures. Background Art
[0002] With the continuous development of display technology, people's demand for display screens is also rising. The application scenarios of display screens are becoming more and more extensive, and the reliability requirements of display screens are getting higher and higher. For example, the whole machine will be tested by low temperature drop to simulate the reliability in cold countries or regions. Under low temperature conditions, the PSA-interface adhesion in the polarizer will be less than the PSA-cohesion, so the adhesion between the PSA and the upper and lower surfaces of the APF and TAC will decrease. When dropped again, the two will be delaminated, forming a bad watermark;
[0003] Compared with the re-development of new low-temperature resistant materials, which has a long R&D cycle and high investment, the requirements can be met by baking the polarizer monomer before assembly to improve its PSA cohesion. But sometimes different baking conditions will still have differences in the same configuration: by comparison, baking at a high temperature of 80°C for 5 hours has the best effect and is also conducive to production operations. The use of baked polarizers in the module can greatly reduce the adverse situation of stratified watermarks caused by falling under low temperature conditions, and effectively improve product stability and mass production display uniformity from the design end. Since the application of modules is very wide, this can improve product stability and mass production uniformity. It only needs to change the polarizer components in the display screen, which is not limited by personnel, equipment and costs, and can be implemented on a large scale. For this reason, a structure is now proposed to improve the stratification of the polarizer of the whole machine when it falls at low temperature. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the utility model provides a structure for improving the delamination of the polarizer of the whole machine when it is dropped at low temperature, thereby solving the technical problem of poor delamination of the polarizer of the whole machine when it is dropped at low temperature.
[0006] (II) Technical solution
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] A structure for improving the delamination of polarizers of a whole device when they are dropped at low temperatures, comprising: a base and an aluminum foil sleeve, a mounting mechanism is arranged between the base and the aluminum foil sleeve, the mounting mechanism comprises a mounting seat and a group of baffles, two pairs of fixing seats are fixedly connected to the upper surface of the base, a rotating shaft is rotatably sleeved between each pair of fixing seats, an upward grip is fixedly connected to the middle part of each rotating shaft, connecting rods are fixedly connected to both ends of each rotating shaft, a pair of fixing frames are fixedly connected to the surface of each fixing seat away from the rotating shaft, an arc rod is fixedly connected between each pair of fixing frames, and a spring is movably sleeved on each arc rod.
[0009] Preferably: a rotating plate is fixedly connected to each connecting rod, and the four rotating plate ends are movably connected to the four arc-shaped rods respectively. The spring is located between the bottom surface of the rotating plate and the fixed frame at the lower end. The spring is in a compressed state, and the two ends of the spring are fixedly connected to the rotating plate and the fixed frame at the lower end respectively.
[0010] Preferably, a placement seat is fixedly connected to the upper surface of the base, and eight slots in a ring array are provided on the placement seat, and the placement seat is movably sleeved with the lower end of the aluminum foil sleeve.
[0011] Preferably: the bottom surface of the mounting seat is fixedly connected with eight annular array plug rods, the eight plug rods are movably connected with the eight slots respectively, the mounting seat and the placement seat fit together up and down and have the same diameter, and two positioning rods are fixedly connected to the mounting seat.
[0012] Preferably, two positioning grooves are provided on each baffle, a pressing plate for pressing the polarizer is fixedly connected to the bottom surface of each baffle, a similar pressing plate is fixedly connected to the upper surface of the mounting seat, and the positioning grooves are movably sleeved with the positioning rods.
[0013] (III) Beneficial effects
[0014] 1. Fix the polarizer monomer with a baffle to prevent deformation due to heat, and wrap it with an aluminum foil sleeve so that the polarizer can be evenly heated in the constant temperature furnace. Place it in the constant temperature furnace for high-temperature baking at ℃ for 10 hours, which greatly improves the problem of poor stratification of the polarizer when the whole machine is dropped at low temperature.
[0015] 2. The shading sheet monomers are stacked up and down between two positioning rods. A plurality of shading sheet monomers can be clamped on one mounting seat at the same time to avoid deformation of the shading sheet monomers during heating and achieve the effect of batch heating.
[0016] 3. After installing the shading sheet, put on the aluminum foil sleeve, and use the elastic force of the spring to push the handle on the rotating shaft against the outer wall of the sleeve, which can prevent the aluminum foil sleeve from being easily separated from the placement seat to a certain extent, so that the aluminum foil sleeve and the placement seat remain in contact during the heating process to maintain a balanced heating state. By preparing two mounting seats, one mounting seat can hold the shading sheet and bake it in a constant temperature furnace, and the other mounting seat can be used to disassemble and assemble the shading sheet, which can effectively improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.
[0018] Figure 1 It is the overall structure diagram of the utility model;
[0019] Figure 2 It is a structural schematic diagram of the mounting seat in the utility model;
[0020] Figure 3 It is a structural diagram of the base in the utility model;
[0021] Figure 4 For this utility model Figure 3 Enlarged structural diagram of point A in the middle.
[0022] Legend: 1. Base; 2. Aluminum foil sleeve; 3. Rotating shaft; 4. Mounting seat; 5. Insert rod; 6. Positioning rod; 7. Positioning groove; 8. Baffle; 9. Pressure plate; 10. Placement seat; 11. Slot; 12. Fixing frame; 13. Fixing seat; 14. Arc rod; 15. Spring; 16. Rotating piece; 17. Connecting rod. DETAILED DESCRIPTION
[0023] The embodiment of the present application effectively solves the technical problem of poor delamination of the polarizer of the whole machine after low-temperature drop by providing a structure for improving the delamination of the polarizer of the whole machine after low-temperature drop.
[0024] Example
[0025] The overall idea of the technical solution in the embodiment of the present application is as follows:
[0026] like Figure 1-4As shown, in view of the problems existing in the prior art, the utility model provides a structure for improving the delamination of the polarizer when the whole machine is dropped at low temperature, comprising a base 1 and an aluminum foil sleeve 2, wherein a mounting mechanism is arranged between the base 1 and the aluminum foil sleeve 2, the mounting mechanism comprising a mounting seat 4 and a group of baffles 8, two pairs of fixing seats 13 are fixedly connected to the upper surface of the base 1, a rotating shaft 3 is rotatably sleeved between each pair of fixing seats 13, the middle part of each rotating shaft 3 is fixedly connected to an upward grip, and both ends of each rotating shaft 3 are fixedly connected to a connecting rod 17. A pair of fixing frames 12 are fixedly connected on the surface of each fixing seat 13 away from the rotating shaft 3. An arc rod 14 is fixedly connected between each pair of fixing frames 12. A spring 15 is movably sleeved on each arc rod 14. After the light shielding sheet is installed, the aluminum foil sleeve 2 is sleeved, and the elastic force of the spring 15 is used to push the handle on the rotating shaft 3 against the outer wall of the sleeve, which prevents the aluminum foil sleeve 2 from being easily separated from the placement seat 10 to a certain extent, so that the aluminum foil sleeve 2 and the placement seat 10 are kept sleeved during the heating process to maintain a balanced heating state;
[0027] A rotating piece 16 is fixedly connected to each connecting rod 17, and the ends of the four rotating pieces 16 are movably sleeved with the four arc-shaped rods 14 respectively. The spring 15 is located between the bottom surface of the rotating piece 16 and the fixing frame 12 at the lower end. The spring 15 is in a compressed state. The two ends of the spring 15 are fixedly connected to the rotating piece 16 and the fixing frame 12 at the lower end respectively. A placement seat 10 is fixedly connected to the upper surface of the base 1. The placement seat 10 is provided with eight annular array slots 11. The placement seat 10 is movably sleeved with the lower end of the aluminum foil sleeve 2. The bottom surface of the mounting seat 4 is fixedly connected to eight annular array insertion rods 5. The eight insertion rods 5 are movably sleeved with the eight slots 11 respectively. The mounting seat 4 fits the placement seat 10 up and down and has the same diameter. There are two fixedly connected positioning rods 6, and each baffle 8 is provided with two positioning grooves 7. The bottom surface of each baffle 8 is fixedly connected with a pressure plate 9 for pressing the polarizer. The upper surface of the mounting seat 4 is fixedly connected with the same pressure plate 9. First, the shading film monomers are placed one by one between the baffles 8. The bottom shading film monomer is located between the upper surface of the mounting seat 4 and the lowermost pressure plate 9. The other shading film monomers are located between the adjacent pressure plates 9 and baffles 8, so that the shading film monomers are stacked up and down between the two positioning rods 6. Many shading film monomers can be clamped on one mounting seat 4 at the same time to avoid deformation of the shading film monomers during heating and achieve the effect of batch heating. The positioning grooves 7 are movably connected to the positioning rods 6.
[0028] Working principle: When in use, first place the shading sheet monomers one by one between the baffles 8, the bottom shading sheet monomer is located between the upper surface of the mounting seat 4 and the bottommost pressure plate 9, and the other shading sheet monomers are located between the adjacent pressure plates 9 and baffles 8, so that the shading sheet monomers are stacked up and down between the two positioning rods 6, and a mounting seat 4 can clamp many shading sheet monomers at the same time to avoid deformation of the shading sheet monomers during heating, so as to achieve the effect of batch heating. After the shading sheet monomers are installed, put on the aluminum foil sleeve 2. The elastic force of the spring 15 is utilized to push the handle on the rotating shaft 3 against the outer wall of the sleeve, thereby preventing the aluminum foil sleeve 2 from being easily separated from the placement seat 10 to a certain extent, so that the aluminum foil sleeve 2 and the placement seat 10 remain connected during the heating process to maintain a balanced heating state. By preparing two mounting seats 4, when one mounting seat 4 holds the shading sheet and bakes it in a constant temperature furnace, the other mounting seat 4 can be used to disassemble and assemble the shading sheet alone, which can effectively improve the efficiency. The baked shading sheet can greatly improve the problem of poor stratification of the polarizer when the whole machine is dropped at low temperature.
[0029] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.
Claims
1. A structure for improving the delamination of polarizers when the whole machine is dropped at low temperature, characterized in that: The structure for improving the delamination of the polarizer of the whole device after low-temperature drop comprises: a base (1) and an aluminum foil sleeve (2); Wherein, a mounting mechanism is arranged between the base (1) and the aluminum foil sleeve (2), and the mounting mechanism comprises a mounting seat (4) and a set of baffles (8); Two pairs of fixed seats (13) are fixedly connected to the upper surface of the base (1), a rotating shaft (3) is rotatably sleeved between each pair of fixed seats (13), both ends of each rotating shaft (3) are fixedly connected to connecting rods (17), and a pair of fixed frames (12) are fixedly connected to the surface of each fixed seat (13) away from the rotating shaft (3); Each pair of fixing frames (12) is fixedly connected with an arc-shaped rod (14), and each arc-shaped rod (14) is movably sleeved with a spring (15).
2. The structure for improving the delamination of the polarizer after low temperature drop of the whole device as claimed in claim 1, characterized in that: Each connecting rod (17) is fixedly connected to a rotating piece (16), and the ends of the four rotating pieces (16) are movably sleeved with the four arc-shaped rods (14) respectively.
3. The structure for improving the delamination of the polarizer after low temperature drop of the whole device as claimed in claim 2, characterized in that: The spring (15) is located between the bottom surface of the rotating plate (16) and the fixing frame (12) located at the lower end; The two ends of the spring (15) are respectively fixedly connected to the rotating plate (16) and the fixing frame (12) located at the lower end.
4. The structure for improving the delamination of the polarizer after low temperature drop of the whole device as claimed in claim 3, characterized in that: A placement seat (10) is fixedly connected to the upper surface of the base (1), and the placement seat (10) is provided with eight slots (11) in a ring-shaped array; The placement seat (10) is movably sleeved with the lower end of the aluminum foil sleeve (2).
5. The structure for improving the delamination of the polarizer after low temperature drop of the whole device as claimed in claim 4, characterized in that: The bottom surface of the mounting seat (4) is fixedly connected with eight insertion rods (5), and the eight insertion rods (5) are movably sleeved with eight slots (11) respectively. The mounting seat (4) is fixedly connected with two positioning rods (6).
6. The structure for improving the delamination of the polarizer after low temperature drop of the whole device as claimed in claim 5, characterized in that: Two positioning grooves (7) are provided on each baffle (8), a pressing plate (9) is fixedly connected to the bottom surface of each baffle (8), a similar pressing plate (9) is fixedly connected to the upper surface of the mounting seat (4), and the positioning grooves (7) are movably sleeved with the positioning rods (6).