CN115975538A - Ultrathin high-transmittance OLED (organic light emitting diode) support film with high safety performance and preparation method thereof - Google Patents

Ultrathin high-transmittance OLED (organic light emitting diode) support film with high safety performance and preparation method thereof Download PDF

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CN115975538A
CN115975538A CN202310014216.2A CN202310014216A CN115975538A CN 115975538 A CN115975538 A CN 115975538A CN 202310014216 A CN202310014216 A CN 202310014216A CN 115975538 A CN115975538 A CN 115975538A
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由龙
谢明哲
宋昊
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Shenzhen Shenshan Special Cooperation Zone Konoqiao New Material Co ltd
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Shenzhen Shenshan Special Cooperation Zone Konoqiao New Material Co ltd
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Abstract

The invention discloses an ultrathin high-transmittance OLED (organic light emitting diode) support film with high safety performance and a preparation method thereof, and belongs to the technical field of OLEDs. The ultrathin high-transmittance OLED support film with high safety performance comprises a transparent protective film layer, a base film layer, a treatment layer, an adhesive layer and a blue protective film in sequence. The ultrathin high-transmittance OLED supporting film with high safety performance has good mechanical and optical properties and excellent tensile strength and haze performance.

Description

Ultrathin high-transmittance OLED (organic light emitting diode) support film with high safety performance and preparation method thereof
Technical Field
The invention belongs to the technical field of OLED, and particularly relates to an ultrathin high-transmittance OLED support film with high safety performance and a preparation method thereof.
Background
An OLED display is a display made using organic electroluminescent light-emitting diodes. Because of having the self-luminous organic electroluminescent diode, it does not need backlight, has high contrast, thin thickness, wide viewing angle, fast response speed, can be used in flexible panel, has wide temperature range, and simple structure and process.
The OLED support film has high requirements for mechanical properties and optical properties, and the tensile strength and haze properties of the existing OLED support film cannot meet further requirements.
Disclosure of Invention
Aiming at the problems, the invention provides an ultrathin high-transmittance OLED support film with high safety performance. Excellent tensile strength and haze properties.
The invention discloses an ultrathin high-transmittance OLED (organic light emitting diode) support film with high safety performance, which comprises a transparent protective film layer, a base film layer, a processing layer, an adhesive layer and a blue protective film in sequence.
In some embodiments of the present invention, the transparent protective film layer is made of PET/PC/PP.
In some embodiments of the present invention, the base film layer is made of optical grade PET/CPI solution.
In some embodiments of the present invention, the material of the blue protective film is PET/PC/PP.
In some embodiments of the present invention, the raw material for preparing the treatment layer comprises the following components in parts by weight:
20-50 parts of zirconium oxide, 10-20 parts of methyl-2-pentanone, 10-20 parts of aliphatic solvent, 10-20 parts of 1-methoxy-2-propanol, 10-20 parts of cyclohexanone, 5-30 parts of photosensitive resin and 0.5-1 part of pentaerythritol triacrylate.
In some embodiments of the present invention, the raw material for preparing the treatment layer comprises the following components in parts by weight:
20-30 parts of zirconium oxide, 10-20 parts of methyl-2-pentanone, 10-20 parts of aliphatic solvent, 10-20 parts of 1-methoxy-2-propanol, 10-20 parts of cyclohexanone, 10-30 parts of photosensitive resin and 0.5-1 part of pentaerythritol triacrylate.
In some embodiments of the present invention, the raw material for preparing the adhesive layer comprises the following components in parts by weight:
40-100 parts of rubber, 0.5-1 part of ion scavenger, 0.5-1 part of antioxidant, 0.5-1 part of accelerator and 20-60 parts of bisphenol resin.
In some embodiments of the present invention, the raw material for preparing the adhesive layer comprises the following components in parts by weight:
40-60 parts of rubber, 0.5-1 part of ion scavenger, 0.5-1 part of antioxidant, 0.5-1 part of accelerator and 40-60 parts of bisphenol resin.
In some embodiments of the invention, the rubber is nitrile butadiene rubber 1072 series, preferably at least one of 1072CGJ and 1072 CJX.
In some embodiments of the invention, the ion scavenger is IXE-100.
In some embodiments of the invention, the antioxidant is G200.
In some embodiments of the invention, the accelerator is Everrnox-10.
In some embodiments of the invention, the bisphenol resin is south Asia 128/901, E28.
In some embodiments of the present invention, the transparent protective film layer has a thickness of 25 to 75 μm.
In some embodiments of the present invention, the thickness of the base film layer is 25/50/75/100 μm.
In some embodiments of the invention, the thickness of the treatment layer is 0.5 to 3 μm.
In some embodiments of the invention, the adhesive layer has a thickness of μm.
In some embodiments of the present invention, the thickness of the blue protective film is 5 to 75 μm.
The second aspect of the present invention discloses a method for preparing an ultra-thin high-transmittance OLED support film with high safety performance according to the first aspect, which is characterized by comprising the following steps:
s01, preparing a basement membrane;
s02, mixing preparation raw materials of a treatment layer, and coating the mixture on the base film to form the treatment layer;
s03, mixing the raw materials for preparing the adhesive layer, and coating the mixture on the processing layer;
s04, drying;
and S05, covering the transparent protective film layer and the blue protective film.
In some embodiments of the present invention, the preparation is performed by a special OLED support film preparation apparatus comprising: the device comprises a preparation box body, a first coating roller, a raw material mixing box body, a second coating roller and a rotating conveying disc, wherein a base film layer channel is arranged in the middle of the preparation box body;
the two groups of first coating rollers, the second coating rollers and the rotary conveying disc are driven to rotate by the same motor, and the motor is fixedly connected with the rear end of the inner wall of the preparation box body;
the first driving motor is fixedly connected with the outer wall of the preparation box body, an output shaft of the first driving motor extends into the preparation box body and is fixedly connected with a first connecting rod, one end, far away from the first driving motor, of the first connecting rod is fixedly sleeved with a first bevel gear, the upper end of a second connecting rod movably penetrates through a partition plate and is fixedly connected with a third bevel gear, the lower end of the second connecting rod extends into the raw material mixing box body and is fixedly connected with a stirring assembly, the outer wall of the second connecting rod is fixedly sleeved with a second bevel gear, and the second bevel gear is meshed with the first bevel gear;
the partition plate is fixedly connected with the inner wall of the preparation box body, the supporting rod is fixedly connected to the top of the partition plate, a fourth bevel gear is fixedly sleeved at one end, close to the third bevel gear, of the third connecting rod, the fourth bevel gear is meshed with the fourth bevel gear, and one end, far away from the third bevel gear, of the third connecting rod movably penetrates through the supporting rod and is fixedly connected with the fan blades;
the bottom of the supporting column is fixedly connected with the bottom of the inner wall of the preparation box body, the top of the supporting column is fixedly connected with a driving motor II, the output end of the driving motor II is fixedly sleeved with a poking wheel, one side of the raw material mixing box body, which is close to the poking wheel, is fixedly connected with a poking sheet, and a plurality of supporting components are arranged between the bottom of the raw material mixing box body and the bottom of the inner wall of the preparation box body;
the support assembly includes: the top of the connecting sleeve is fixedly connected with the bottom of the raw material mixing box body through a connecting spring, the upper end of the connecting column movably extends into the connecting sleeve, the lower end of the connecting column is fixedly connected with the bottom of the inner wall of the preparation box body, and the connecting sleeve and the connecting column are detachably connected through a locking screw.
The invention has the beneficial effects that:
the ultrathin high-transmittance OLED support film with high safety performance adopts the treatment layer and the adhesive layer with specific components and contents, and has good mechanical and optical properties, tensile strength and haze performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic flow chart of the production process of the present invention;
FIG. 3 is a schematic structural view of an apparatus for preparing an OLED support film according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 of the present invention.
In the figure: 1. a transparent protective film layer; 2. a base film layer; 3. a treatment layer; 4. an adhesive layer; 5. a blue protective film; 6. preparing a box body; 7. preparing a box body; 8. a first coating roller; 9. a raw material mixing box body; 10. a second coating roller; 11. rotating the delivery tray; 12. driving a motor I; 13. a first link; 14. a first bevel gear; 15. a second bevel gear; 16. a stirring assembly; 17. a second link; 18. a partition plate; 19. a third bevel gear; 20. a fourth bevel gear; 21. a third link; 22. a support bar; 23. a fan blade; 24. a support pillar; 25. a second driving motor; 26. a poking wheel; 27. a shifting sheet; 28. a connecting spring; 29. a connecting sleeve; 30. a locking screw; 31. connecting columns.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Unless otherwise specified, the examples and comparative examples are parallel tests with the same components, component contents, preparation steps, preparation parameters.
In the following examples and comparative examples, the transparent protective film layer was PET and had a thickness of 50 μm. The blue protective film is PET and has the thickness of 50 mu m. The base film layer is optical-grade PET, the thickness is 50 mu m, and the visible light transmittance is more than 90%. The aliphatic solvent is acetone; the photosensitive resin is TW02; the thickness of the treatment layer is 10 mu m, and the hardness is more than 2h. The rubber is 1072CGJ; the ion trapping agent is IXE-100; the antioxidant is G200; the accelerant is Everrnox-10; the bisphenol resin is south Asia 128; the thickness of the adhesive layer was 25 μm.
Example 1
The utility model provides an ultra-thin high OLED that passes through that security performance is high supports membrane, includes transparent protection rete 1, base rete 2, processing layer 3, adhesive layer 4 and blue protection film 5 in proper order.
The preparation method comprises the following steps:
s01, preparing a basal membrane 2;
s02, mixing the preparation raw materials of the treatment layer 3, and coating the mixture on the base film to form the treatment layer 3;
s03, mixing the preparation raw materials of the adhesive layer 4, and coating the mixture on the processing layer 3;
s04, drying;
and S05, covering the transparent protective film layer 1 and the blue protective film 5.
The preparation raw materials of the treatment layer comprise the following components in parts by weight:
25 parts of zirconium oxide, 15 parts of methyl-2-pentanone, 15 parts of aliphatic solvent, 15 parts of 1-methoxy-2-propanol, 15 parts of cyclohexanone, 20 parts of photosensitive resin and 0.8 part of pentaerythritol triacrylate.
The adhesive layer is prepared from the following raw materials in parts by weight:
50 parts of rubber, 0.8 part of ion scavenger, 0.8 part of antioxidant, 0.8 part of accelerator and 50 parts of bisphenol resin.
Example 2
The utility model provides an ultra-thin high OLED that passes through that security performance is high supports membrane, includes transparent protection rete, base rete, processing layer, adhesive layer and blue protection film in proper order.
The preparation method comprises the following steps:
s01, preparing a basement membrane;
s02, mixing preparation raw materials of a treatment layer, and coating the mixture on the base film to form the treatment layer;
s03, coating the mixed raw materials for preparing the adhesive layer on the processing layer;
s04, drying;
and S05, covering the transparent protective film layer and the blue protective film.
The preparation raw materials of the treatment layer comprise the following components in parts by weight:
20 parts of zirconium oxide, 10 parts of methyl-2-pentanone, 10 parts of aliphatic solvent, 10 parts of 1-methoxy-2-propanol, 10 parts of cyclohexanone, 10 parts of photosensitive resin and 0.5 part of pentaerythritol triacrylate.
The adhesive layer is prepared from the following raw materials in parts by weight:
40 parts of rubber, 0.5 part of ion scavenger, 0.5 part of antioxidant, 0.5 part of accelerator and 40 parts of bisphenol resin.
Example 3
The utility model provides an ultra-thin high OLED that passes through that security performance is high supports membrane, includes transparent protection rete, base rete, processing layer, adhesive layer and blue protection film in proper order.
The preparation method comprises the following steps:
s01, preparing a basement membrane;
s02, mixing preparation raw materials of a treatment layer, and coating the mixture on the base film to form the treatment layer;
s03, coating the mixed raw materials for preparing the adhesive layer on the processing layer;
s04, drying;
and S05, covering the transparent protective film layer and the blue protective film.
The preparation raw materials of the treatment layer comprise the following components in parts by weight:
30 parts of zirconium oxide, 20 parts of methyl-2-pentanone, 20 parts of aliphatic solvent, 20 parts of 1-methoxy-2-propanol, 20 parts of cyclohexanone, 30 parts of photosensitive resin and 1 part of pentaerythritol triacrylate.
The adhesive layer is prepared from the following raw materials in parts by weight:
60 parts of rubber, 1 part of ion scavenger, 1 part of antioxidant, 1 part of accelerator and 60 parts of bisphenol resin.
Example 4
The utility model provides an ultra-thin high OLED that passes through that security performance is high supports membrane, includes transparent protection rete, base rete, processing layer, adhesive layer and blue protection film in proper order.
The preparation method comprises the following steps:
s01, preparing a basement membrane;
s02, mixing preparation raw materials of a treatment layer, and coating the mixture on the base film to form the treatment layer;
s03, coating the mixed raw materials for preparing the adhesive layer on the processing layer;
s04, drying;
and S05, covering the transparent protective film layer and the blue protective film.
The preparation raw materials of the treatment layer comprise the following components in parts by weight:
50 parts of zirconium oxide, 15 parts of methyl-2-pentanone, 15 parts of aliphatic solvent, 15 parts of 1-methoxy-2-propanol, 15 parts of cyclohexanone, 20 parts of photosensitive resin and 0.8 part of pentaerythritol triacrylate.
The adhesive layer is prepared from the following raw materials in parts by weight:
100 parts of rubber, 0.8 part of ion scavenger, 0.8 part of antioxidant, 0.8 part of accelerator and 50 parts of bisphenol resin.
Example 5
The utility model provides an ultra-thin high OLED that passes through that security performance is high supports membrane, includes transparent protection rete, base rete, processing layer, adhesive layer and blue protection film in proper order.
The preparation method comprises the following steps:
s01, preparing a basement membrane;
s02, mixing preparation raw materials of a treatment layer, and coating the mixture on the base film to form the treatment layer;
s03, coating the mixed raw materials for preparing the adhesive layer on the processing layer;
s04, drying;
and S05, covering the transparent protective film layer and the blue protective film.
The preparation raw materials of the treatment layer comprise the following components in parts by weight:
25 parts of zirconium oxide, 15 parts of methyl-2-pentanone, 15 parts of aliphatic solvent, 15 parts of 1-methoxy-2-propanol, 15 parts of cyclohexanone, 5 parts of photosensitive resin and 0.8 part of pentaerythritol triacrylate.
The adhesive layer is prepared from the following raw materials in parts by weight:
50 parts of rubber, 0.8 part of ion scavenger, 0.8 part of antioxidant, 0.8 part of accelerator and 20 parts of bisphenol resin.
Example 6
On the basis of any one of embodiments 1-5, please refer to fig. 3-4, further comprising: OLED supporting film preparation facilities, OLED supporting film preparation facilities includes: the preparation device comprises a preparation box body 6, a first coating roller 8, a raw material mixing box body 9, a second coating roller 10 and a rotating conveying disc 11, wherein a base film layer channel 7 is arranged in the middle of the preparation box body 6, two groups of raw material mixing box bodies 9, the first coating roller 8, the second coating roller 10 and the rotating conveying disc 11 are sequentially arranged in the preparation box body 6 along the conveying direction, and the two groups of raw material mixing box bodies 9, the first coating roller 8, the second coating roller 10 and the rotating conveying disc 11 are symmetrically arranged on two sides of the base film layer channel 7;
the two groups of first coating rollers 8, second coating rollers 10 and the rotary conveying disc 11 are driven to rotate by the same motor, and the motor is fixedly connected with the rear end of the inner wall of the preparation box body 6;
the first driving motor 12 is fixedly connected with the outer wall of the preparation box body 6, an output shaft of the first driving motor 12 extends into the preparation box body 6 and is fixedly connected with a first connecting rod 13, one end, far away from the first driving motor 12, of the first connecting rod 13 is fixedly connected with a first bevel gear 14 in a sleeved mode, the upper end of a second connecting rod 17 movably penetrates through a partition plate 18 and is fixedly connected with a third bevel gear 19, the lower end of the second connecting rod 17 extends into the raw material mixing box body 9 and is fixedly connected with a stirring assembly 16, a second bevel gear 15 is fixedly connected with the outer wall of the second connecting rod 17 in a sleeved mode, and the second bevel gear 15 is meshed with the first bevel gear 14;
the partition plate 18 is fixedly connected with the inner wall of the preparation box body 6, the support rod 22 is fixedly connected with the top of the partition plate 18, one end of the third connecting rod 21, which is close to the third bevel gear 19, is fixedly sleeved with the fourth bevel gear 20, the fourth bevel gear 20 is meshed with the fourth bevel gear 20, and one end of the third connecting rod 21, which is far away from the third bevel gear 19, movably penetrates through the support rod 22 and is fixedly connected with the fan blades 23;
the bottom of the support column 24 is fixedly connected with the bottom of the inner wall of the preparation box body 6, the top of the support column 24 is fixedly connected with a second driving motor 25, the output end of the second driving motor 25 is fixedly sleeved with a poking wheel 26, one side of the raw material mixing box body 9, which is close to the poking wheel 26, is fixedly connected with a poking sheet 27, and a plurality of support assemblies are arranged between the bottom of the raw material mixing box body 9 and the bottom of the inner wall of the preparation box body 6;
the support assembly includes: connecting sleeve 29 and spliced pole 31, connecting spring 28 and raw materials mixing box 9 bottom fixed connection are passed through at the connecting sleeve 29 top, and in spliced pole 31 upper end activity extended to connecting sleeve 29, spliced pole 31 lower extreme and preparation box 6 inner wall bottom fixed connection, can dismantle the connection through locking screw 30 between connecting sleeve 29 and the spliced pole 31.
The working principle and the beneficial effects of the technical scheme are as follows: when the OLED support film is manufactured, manufacturing raw materials of the processing layer 3 are put into the raw material mixing box 9 on the left side for mixing, manufacturing raw materials of the adhesive layer 4 are put into the raw material mixing box 9 on the right side for mixing, the transparent protective film layer 1 is installed on the rotary conveyor disc 11 on the left side and wound around the second coating roller 10 on the left side, the blue protective film 5 is installed on the rotary conveyor disc 11 on the right side and wound around the second coating roller 10 on the right side, and then the base film layer 2 is put into the base film layer channel 7, at this time, the starting motor drives the two groups of first coating rollers 8, the second coating rollers 10 and the rotary conveyor disc 11 to rotate in opposite directions, so that the base film layer 2 moves along the base film layer channel 7, when the base film layer 2 passes between the two groups of first coating rollers 8, the two groups of first coating rollers 8 coat the processing layer 3 and the adhesive layer 4 in the raw material mixing box 9 on two sides of the base film layer 2, and when the coated base film layer 2 passes between the two groups of second coating rollers 10, the two groups of second coating rollers 10 coat the processing layer 3 and the transparent protective film layer 5 on two sides of the base film 2, so that the OLED support film layer 2 is completely adhered to form the OLED support film;
meanwhile, a first driving motor 12 is started to drive a first connecting rod 13 to rotate, the first connecting rod 13 drives a second connecting rod 17 to rotate through a first bevel gear 14 and a second bevel gear 15 while rotating, at the moment, the lower end of the second connecting rod 17 continuously stirs raw materials in the raw material mixing box 9 through a stirring assembly 16, so that the raw materials in the raw material mixing box 9 can be fully mixed, the upper end of the second connecting rod 17 drives a third connecting rod 21 to rotate through a third bevel gear 19 and a fourth bevel gear 20, the third connecting rod 21 drives a fan blade 23 to rotate, so that the fan blade 23 continuously rotates to blow air in the direction of the base film layer 2, the effects of heat dissipation and temperature reduction are achieved, and the transparent protective film layer 1 and the blue protective film 5 can be attached to the base film layer 2 more tightly in a mode of quickly air drying the processing layer 3 and the adhesive layer 4;
meanwhile, the second driving motor 25 is started to drive the poking wheel 26 to rotate, a plurality of vibration blades are arranged outside the poking wheel 26, so that the poking piece 27 outside the raw material mixing box 9 continuously strikes through the vibration blades to enable the raw material mixing box 9 to continuously shake up and down under the support of the connecting spring 28, and therefore raw materials in the raw material mixing box 9 are prevented from being solidified, the connecting sleeve 29 and the connecting column 31 are matched through the locking screw 30 for use, the height of the raw material mixing box 9 can be adjusted, the raw material mixing box 9 can adapt to different conditions, and the connecting spring 28 can also support the raw material mixing box 9.
The OLED supporting film can be rapidly prepared through the device, and the device is simple and efficient.
Example 7
On the basis of any one of embodiments 1 to 5, the method further comprises the following steps: the quality inspection device for the OLED supporting film comprises the following steps: randomly taking one OLED support film from a plurality of OLED support films, placing the OLED support film into a solution box containing corrosive liquid, standing for a period of time, continuously heating the solution (the liquid is used for simulating the corrosion state of the OLED support film under the influence of temperature in long-time use, and the liquid can accelerate the corrosion of the OLED support film), taking out the OLED support film, hanging and quickly drying by a fan;
the OLED support film quality inspection device further comprises:
a temperature sensor: the temperature sensor is arranged on the solution tank and used for detecting the temperature of the solution tank (specifically, the solution tank comprises an inner tank body and an outer tank body outside the inner tank body, the inner tank body is used for storing solution, a heating device is arranged between the outer tank body and the inner tank body and used for heating the inner tank body, and the temperature sensor is arranged on the outer wall of the inner tank body);
the wind speed sensor is arranged on the outer surface of one side, opposite to the fan, of the OLED supporting film and used for detecting the wind speed borne by the OLED supporting film (specifically, the distance between the OLED supporting film and the fan is 1m, and after one side of the OLED supporting film is air-dried, the OLED supporting film needs to be rotated until all the sides of the OLED supporting film are air-dried);
the first timer is arranged on the outer wall of the solution tank and used for detecting the soaking time of the laser film;
the second timer is arranged on the outer surface of the fan and used for detecting the wind blowing time of the OLED support film (namely the time used for blowing all the surfaces of the OLED support film to dry);
an alarm device: the alarm is arranged on the outer surface of the solution tank;
a controller: the controller is electrically connected with the wind speed sensor, the temperature sensor, the first timer and the second timer and the alarm;
the controller controls the alarm to work based on the wind speed sensor, the temperature sensor, the first timer and the second timer, and the method comprises the following steps:
step 1: the controller calculates the corrosion resistance coefficient of the OLED supporting film based on the detection values of the temperature sensor and the timer I and the formula (1):
Figure BDA0004038795520000141
wherein X is the corrosion bearing coefficient of the OLED supporting film, K 1 Is the initial temperature in the tank (here considered to be the same as ambient temperature), K 2 K is the average value of the detection values of the temperature sensor during the standing process of the OLED support film in the solution box (the process is preset to be 1 hour, namely the average value detected by the temperature sensor in the hour, wherein the heating temperature can be set according to the bearable maximum temperature of the OLED support film), and 3 for the surface temperature of the OLED support film after removal from the solution tank (here considered to be the same as the solution temperature), K 4 The surface temperature L of the OLED supporting film after being cooled by a fan 1 Thickness of the OLED support film, L 2 For the length of the OLED support film,
Figure BDA0004038795520000142
for intercepted OLED supporting film material Poisson's ratio, T is unit time, T 1 Is the detected value of the timer one, S 1 Surface area, Δ, of the OLED support film in contact with corrosive liquids after being placed in a solution tank 1 A damage coefficient (greater than 0 and less than 1 for OLED support film consideration) preset for the OLED support filmStability factor setting over long time use).
Step 2: the controller calculates the service life coefficient of the OLED support film according to the detection values of the wind speed sensor and the timer II and the step 1 and the formula (2):
Figure BDA0004038795520000143
wherein Y is the service life coefficient of the OLED support film, V 1 Is a detected value of the wind speed sensor, T 2 The detection value of the second timer is (wherein the second timer stops timing after all surfaces of the OLED supporting film are dried), N is the product of precision coefficients of the wind speed sensor, the temperature sensor, the first timer and the second timer (the value is larger than 0 and smaller than 1, and is set for considering the precision of the sensor), e is a natural constant, and the value is 2.72;
step three: the controller compares the service life coefficient of the OLED supporting film with a preset service life coefficient, and when the service life coefficient of the OLED supporting film is smaller than the preset service life coefficient (1.0), the controller controls the alarm.
Suppose K 1 =20℃,K 2 =30℃,K 3 =28℃,K 4 =23℃,L 1 =0.5m,L 2 =0.5cm,
Figure BDA0004038795520000155
T=60S,T 1 =2h,S 1 =0.5m 2 ,e=2.72,Δ 1 =0.45, and the corrosion resistance coefficient X =2.37 (two decimal places) of the OLED support film was calculated by formula (1).
V 1 =5m/s,T 2 And (4) =1h, n =0.95, calculating the service life coefficient of the OLED support film Y =0.78 (taking two decimal places) through the formula (2), wherein the service life coefficient of the OLED support film 0.78 obtained through calculation is smaller than the preset service life coefficient 1.0, indicating that an accident condition occurs in the production and preparation process of the batch of OLED support films, and giving an alarm.
The beneficial effects of the above technical scheme are:
by formula (1)
Figure BDA0004038795520000151
The method is characterized in that after the OLED supporting film is placed in corrosive liquid (in order to simulate the corrosion state of the OLED supporting film under natural conditions), the influence state of the OLED supporting film on the corrosion bearing capacity when the OLED supporting film is soaked in the corrosive liquid is caused according to the influence of the material of the OLED supporting film and the difference between the temperature difference of the OLED supporting film;
wherein, with the increasing of the temperature difference, the corrosivity which can be borne by the OLED supporting film can be continuously reduced,
Figure BDA0004038795520000152
indicating the degree of influence on the size of the area according to the change of the temperature difference of the OLED supporting film within a certain time, and then according to->
Figure BDA0004038795520000153
The corrosion resistance coefficient of the OLED supporting film is corrected according to the calculation result to obtain the corrosion resistance coefficient of the OLED supporting film, and the corrosion resistance coefficient is judged and judged according to the result>
Figure BDA0004038795520000154
The influence degree index of the wind speed of the OLED supporting film on the time required by air drying is determined according to the value>
Figure BDA0004038795520000161
The service life coefficient of the OLED supporting film is corrected according to the calculation result to obtain the final service life coefficient of the OLED supporting film, the temperature and the wind speed born by the OLED supporting film are detected by using the wind speed sensor, the temperature sensor, the timer I and the timer II, the service life coefficient of the OLED supporting film is calculated by using the formula (1) and the formula (2) through the controller, if the service life coefficient of the OLED supporting film is smaller than the preset service life coefficient (1.0), the controller controls the alarm to give an alarm prompt to remind a user of checking the whole manufacturing process and the flow of the batch of OLED supporting films, and the good product of the OLED supporting films is improvedAnd (4) rate.
Comparative example 1
The difference from example 1 is that the preparation raw materials of the treatment layer do not include cyclohexanone components and pentaerythritol triacrylate, and the preparation raw materials of the adhesive layer do not include an ion scavenger and an accelerator.
Experimental example Performance comparison
The supporting films of examples and comparative examples were used, and the properties and peel strength were measured by IPC-TM-650, and the haze was measured by a haze meter, and the results are shown in Table 1.
TABLE 1 comparison of Properties
Figure BDA0004038795520000162
Figure BDA0004038795520000171
The results show that the OLED supported films of examples 1-5 have significantly better tensile strength and transparency (as characterized by haze) than comparative example 1. The films of examples 1-3 had insignificant differences in tensile strength and transparency, and were all significantly better than examples 4 and 5. The significant effect of the composition and content of the treatment and adhesive layers in this application is demonstrated.
While the preferred embodiments and examples of the present invention have been described in detail, the present invention is not limited to the embodiments and examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The utility model provides an ultra-thin high OLED that passes through that security performance is high supports membrane which characterized in that, includes transparent protection rete, base rete, processing layer, adhesive layer and blue protection film in proper order.
2. The ultrathin high-transmittance OLED support film with high safety performance according to claim 1, wherein the transparent protective film layer is made of PET/PC/PP;
the base film layer is made of optical-grade PET/CPI/CPI liquid;
the blue protective film is made of PET/PC/PP.
3. The ultrathin high-transmittance OLED support film with high safety performance as claimed in claim 1 or 2, wherein the preparation raw material of the processing layer comprises the following components in parts by weight:
20-50 parts of zirconium oxide, 10-20 parts of methyl-2-pentanone, 10-20 parts of aliphatic solvent, 10-20 parts of 1-methoxy-2-propanol, 10-20 parts of cyclohexanone, 5-30 parts of photosensitive resin and 0.5-1 part of pentaerythritol triacrylate.
4. The ultrathin high-transmittance OLED support film with high safety performance according to any one of claims 1 to 3, wherein the preparation raw material of the processing layer comprises the following components in parts by weight:
20-30 parts of zirconium oxide, 10-20 parts of methyl-2-pentanone, 10-20 parts of aliphatic solvent, 10-20 parts of 1-methoxy-2-propanol, 10-20 parts of cyclohexanone, 10-30 parts of photosensitive resin and 0.5-1 part of pentaerythritol triacrylate.
5. The ultrathin high-transmittance OLED support film with high safety performance according to any one of claims 1 to 4, wherein the adhesive layer is prepared from the following raw materials in parts by weight:
40-100 parts of rubber, 0.5-1 part of ion scavenger, 0.5-1 part of antioxidant, 0.5-1 part of accelerator and 20-60 parts of bisphenol resin.
6. The ultrathin high-transmittance OLED support film with high safety performance as claimed in any one of claims 1 to 5, wherein the raw materials for preparing the adhesive layer comprise the following components in parts by weight:
40-60 parts of rubber, 0.5-1 part of ion scavenger, 0.5-1 part of antioxidant, 0.5-1 part of accelerator and 40-60 parts of bisphenol resin.
7. The ultra-thin high-transmittance OLED support film with high safety performance according to any one of claims 1-6, wherein the rubber is nitrile butadiene rubber 1072 series, preferably at least one of 1072CGJ and 1072 CJX;
the ion trapping agent is IXE-100;
the antioxidant is G200;
the accelerant is Everrnox-10;
the bisphenol resin is south Asia 128/901 and E28.
8. The ultra-thin high-transmittance OLED supporting film with high safety performance according to any one of claims 1-7, wherein the thickness of the transparent protecting film layer is 25-75 μm;
the thickness of the base film layer is 25/50/75/100 μm;
the thickness of the treatment layer is 0.5-3 μm;
the thickness of the adhesive layer is mum;
the thickness of the blue protective film is 5-75 μm.
9. A preparation method of the ultrathin high-transmittance OLED support film with high safety performance according to any one of claims 1 to 8 is characterized by comprising the following steps of:
s01, preparing a basement membrane;
s02, mixing preparation raw materials of a treatment layer, and coating the mixture on the base film to form the treatment layer;
s03, coating the mixed raw materials for preparing the adhesive layer on the processing layer;
s04, drying;
and S05, covering the transparent protective film layer and the blue protective film.
10. The method for preparing the ultrathin high-transmittance OLED supporting film with high safety performance according to claim 9, is characterized by comprising the following steps of: the coating device comprises a preparation box body (6), a first coating roller (8), a raw material mixing box body (9), a second coating roller (10) and a rotating conveying disc (11), wherein a base film layer channel (7) is arranged in the middle of the preparation box body (6), two groups of raw material mixing box bodies (9), the first coating roller (8), the second coating roller (10) and the rotating conveying disc (11) are sequentially arranged in the preparation box body (6) along the conveying direction, and the two groups of raw material mixing box bodies (9), the first coating roller (8), the second coating roller (10) and the rotating conveying disc (11) are symmetrically arranged on two sides of the base film layer channel (7);
two groups of first coating rollers (8), second coating rollers (10) and a rotating conveying disc (11) are driven to rotate by the same motor, and the motor is fixedly connected with the rear end of the inner wall of the preparation box body (6);
the first driving motor (12) is fixedly connected with the outer wall of the preparation box body (6), an output shaft of the first driving motor (12) extends into the preparation box body (6) and is fixedly connected with the first connecting rod (13), one end, far away from the first driving motor (12), of the first connecting rod (13) is fixedly sleeved with a first bevel gear (14), the upper end of a second connecting rod (17) movably penetrates through a partition plate (18) and is fixedly connected with a third bevel gear (19), the lower end of the second connecting rod (17) extends into the raw material mixing box body (9) and is fixedly connected with a stirring assembly (16), a second bevel gear (15) is fixedly sleeved on the outer wall of the second connecting rod (17), and the second bevel gear (15) is meshed with the first bevel gear (14);
the partition plate (18) is fixedly connected with the inner wall of the preparation box body (6), the support rod (22) is fixedly connected to the top of the partition plate (18), one end, close to the third bevel gear (19), of the third connecting rod (21) is fixedly connected with a fourth bevel gear (20) in a sleeved mode, the fourth bevel gear (20) is meshed with the fourth bevel gear (20), and one end, far away from the third bevel gear (19), of the third connecting rod (21) movably penetrates through the support rod (22) and is fixedly connected with the fan blades (23);
the bottom of the support column (24) is fixedly connected with the bottom of the inner wall of the preparation box body (6), the top of the support column (24) is fixedly connected with a second driving motor (25), the output end of the second driving motor (25) is fixedly sleeved with a poking wheel (26), one side of the raw material mixing box body (9) close to the poking wheel (26) is fixedly connected with a poking sheet (27), and a plurality of support assemblies are arranged between the bottom of the raw material mixing box body (9) and the bottom of the inner wall of the preparation box body (6);
the support assembly includes: connecting sleeve (29) and spliced pole (31), connecting spring (28) and raw materials mixing box (9) bottom fixed connection are passed through at connecting sleeve (29) top, and in spliced pole (31) upper end activity extended to connecting sleeve (29), spliced pole (31) lower extreme and preparation box (6) inner wall bottom fixed connection, can dismantle through locking screw (30) between connecting sleeve (29) and spliced pole (31) and be connected.
CN202310014216.2A 2023-01-05 2023-01-05 Ultrathin high-transmittance OLED (organic light emitting diode) support film with high safety performance and preparation method thereof Pending CN115975538A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111826103A (en) * 2019-11-06 2020-10-27 深圳科诺桥科技股份有限公司 Transparent cover film and preparation method thereof, flexible circuit board and LED transparent screen
CN111826011A (en) * 2019-11-06 2020-10-27 深圳科诺桥科技股份有限公司 Modified coating for surface of transparent covering film, preparation method thereof and modified coating
CN214637740U (en) * 2020-12-24 2021-11-09 江苏鼎功电子科技有限公司 Gluing and drying device for adhesive products
CN115019627A (en) * 2022-06-10 2022-09-06 深圳市顺鑫昌文化股份有限公司 Waterproof high-temperature-resistant printable label manufacturing equipment and manufacturing process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111826103A (en) * 2019-11-06 2020-10-27 深圳科诺桥科技股份有限公司 Transparent cover film and preparation method thereof, flexible circuit board and LED transparent screen
CN111826011A (en) * 2019-11-06 2020-10-27 深圳科诺桥科技股份有限公司 Modified coating for surface of transparent covering film, preparation method thereof and modified coating
CN214637740U (en) * 2020-12-24 2021-11-09 江苏鼎功电子科技有限公司 Gluing and drying device for adhesive products
CN115019627A (en) * 2022-06-10 2022-09-06 深圳市顺鑫昌文化股份有限公司 Waterproof high-temperature-resistant printable label manufacturing equipment and manufacturing process

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