阅读说明：本技术 胶辊及其加工方法、显示膜及其加工方法 (Rubber roller and processing method thereof, display film and processing method thereof ) 是由 洪志宗 蔡宏锴 张立典 于 2020-12-16 设计创作，主要内容包括：本发明提供了一种胶辊及其加工方法、显示膜及其加工方法,胶辊的加工方法包括胶辊准备工序以及切削工序：胶辊准备工序提供胶辊,并驱动所述胶辊按预设转速沿其中心轴旋转,所述胶辊的外圆面为加工面；切削工序提供加工刀具,所述加工刀具按预设频率对所述加工面进行往复地进给加工,所述预设频率在1-20kHz的范围内动态变化。本实施例提供的胶辊的加工方法中,通过将加工刀具的进给加工设置在预设频率内变化,以使胶辊的加工面上形成对应的结构,在胶辊对膜层上的成型胶进行滚压加工时,可以使膜层表面的成型胶形成雾面结构,从而降低显示屏的干涉现象,进而提高显示膜层的显示效果。(The invention provides a rubber roller and a processing method thereof, a display film and a processing method thereof, wherein the processing method of the rubber roller comprises a rubber roller preparation process and a cutting process: the preparation process of the rubber roller comprises the steps of providing the rubber roller, driving the rubber roller to rotate along the central axis of the rubber roller according to a preset rotating speed, wherein the outer circle surface of the rubber roller is a processing surface; the cutting process provides a machining tool which performs reciprocating feeding machining on the machining surface according to a preset frequency, and the preset frequency dynamically changes within the range of 1-20 kHz. In the processing method of the rubber roller provided by the embodiment, the feeding processing setting of the processing cutter is changed within the preset frequency, so that the corresponding structure is formed on the processing surface of the rubber roller, and when the rubber roller performs roll processing on the molding glue on the film layer, the molding glue on the surface of the film layer can form a fog surface structure, so that the interference phenomenon of the display screen is reduced, and the display effect of the display film layer is improved.)

1. A processing method of a rubber roller is used for displaying film processing and is characterized by comprising the following steps:

the preparation process of the rubber roller comprises the following steps: providing a rubber roller, and driving the rubber roller to rotate along the central axis of the rubber roller according to a preset rotating speed, wherein the outer circular surface of the rubber roller is a processing surface;

a cutting procedure: and providing a machining cutter, wherein the machining cutter carries out reciprocating feeding machining on the machining surface according to a preset frequency, and the preset frequency is dynamically changed within the range of 1-20 kHz.

2. The process according to claim 1, characterized in that said preset rotation speed ranges from 20 to 100 rpm.

3. The processing method according to claim 1, wherein in the cutting step, the processing tool is moved in an axial direction of the rubber roll at a predetermined moving speed, and the processing tool forms a spiral processing path on the processing surface.

4. A method as claimed in claim 3, characterized in that said predetermined speed is not greater than 30 m/min.

5. A process according to claim 3, wherein the separation of each two adjacent process paths in the axial direction of the rubber roller is in the range of 5-50 um.

6. The machining method according to claim 1, wherein in the cutting process, a feed depth of the machining tool from the machining surface is not more than 5 μm.

7. Rubber roller for displaying processing of a film layer, characterized in that it is processed by the processing method according to any one of claims 1 to 6.

8. A method of processing a display film, comprising:

a base layer preparation step of providing a base layer;

the texturing process step, which provides the rubber roller according to claim 7, wherein a molding compound is coated on the first surface of the base layer, and the rubber roller rolls the molding compound on the first surface.

9. The process of claim 8, further comprising a protective layer application step after the texturing step, wherein a protective layer is applied to the side of the molding compound away from the substrate.

10. A display film produced by the process of any one of claims 8 to 9.

11. The display film of claim 10, wherein the display film has a haze of 0.5% to 50%.

Technical Field

The invention relates to the technical field of display, in particular to a rubber roller and a processing method thereof, and a display film and a processing method thereof.

Background

In the prior art, a display screen is formed by laminating a backlight module and an LCD module, and interference fringes can be formed between the backlight module and the LCD module, as shown in fig. 1, in the prior art, the interference fringes 20 can appear in the display screen, and the display effect of the display screen can be affected by the appearance of the interference fringes 20. Therefore, it is necessary to design a new display film layer to change the current situation.

Disclosure of Invention

In view of the above, the invention provides a rubber roller and a processing method thereof, a display film and a processing method thereof, which are used for solving the problem that the display effect is influenced by interference fringes caused by mutual interference between traditional display film layers.

The invention provides a processing method of a rubber roller, wherein the rubber roller is used for displaying film processing and comprises the following steps:

the preparation process of the rubber roller comprises the following steps: providing a rubber roller, and driving the rubber roller to rotate along the central axis of the rubber roller according to a preset rotating speed, wherein the outer circular surface of the rubber roller is a processing surface;

a cutting procedure: and providing a machining cutter, wherein the machining cutter carries out reciprocating feeding machining on the machining surface according to a preset frequency, and the preset frequency is dynamically changed within the range of 1-20 kHz.

As a further alternative of the present application, the preset rotation speed is in the range of 20-100 rpm.

As a further alternative of the present application, in the cutting process, the processing tool moves in an axial direction of the rubber roller at a preset moving speed, and the processing tool forms a spiral processing path on the processing surface.

As a further alternative of the present application, said preset speed is not greater than 30 m/min.

As a further alternative of the present application, the spacing of each two adjacent processing paths in the axial direction of the glue roll is in the range of 5-50 um.

As a further alternative of the present application, in the cutting process, a feed depth of the machining tool from the machining face is not more than 5 um.

The invention also provides a rubber roller for processing the display film layer, which is processed and manufactured by adopting any one of the processing methods.

The invention also provides a processing method of the display film, which comprises the following steps:

a base layer preparation step of providing a base layer;

and a texture processing procedure, namely providing the rubber roller, coating the molding glue on the first surface of the base layer, and rolling the molding glue on the first surface by the rubber roller.

As a further alternative of the present application, the method further includes a protective layer attaching step after the texture processing step, and a protective layer covers one side of the molding compound away from the base layer.

The invention also provides a display film which is processed and manufactured by adopting any one of the processing methods.

As a further alternative of the present application, the display film has a haze of 0.5% to 50%.

The embodiment of the invention has the following beneficial effects:

in the processing method of the rubber roller provided by the embodiment, the feeding processing setting of the processing cutter is changed within the preset frequency, so that the corresponding structure is formed on the processing surface of the rubber roller, and when the rubber roller performs roll processing on the molding glue on the film layer, the molding glue on the surface of the film layer can form a fog surface structure, so that the interference effect of the display film layer is reduced, and the display effect of the display film layer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a schematic representation of interference fringes in the prior art of the present invention;

FIG. 2 is a schematic diagram of the structure of a display film of the present invention;

FIG. 3 is a schematic view of the process for manufacturing the rubber roller of the present invention;

FIG. 4 is a schematic diagram illustrating the structure of a display film in an embodiment of the present invention;

FIG. 5 is a schematic view showing the display effect of the display film in the embodiment of the present invention;

FIG. 6 is a partially enlarged schematic view of the display film layer in the control group of the present invention;

FIG. 7 is a schematic diagram illustrating an enlarged view of a portion of a display film according to a first embodiment of the present invention;

FIG. 8 is a schematic, enlarged, partial view of a display film according to a second embodiment of the present invention;

FIG. 9 is a schematic, enlarged, partial view of a display film according to a third embodiment of the present invention;

in the invention figure:

10. a display film; 100. a base layer; 200. displaying the film layer; 210. a columnar portion; 211. a convex portion; 300. a prism layer; 20. interference fringes; 30. processing a cutter; 40. a rubber roller; 41. a central shaft; 42. and (6) processing the path.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a rubber roller 40 and a processing method thereof, wherein the rubber roller 40 is used for rolling the display film layer 200, and the processing method comprises a rubber roller preparation process and a cutting process.

The preparation process of the rubber roller comprises the following steps: providing a rubber roller 40, and driving the rubber roller 40 to rotate along the central axis thereof according to a preset rotating speed, wherein the outer circular surface of the rubber roller 40 is a processing surface; a cutting procedure: a machining tool 30 is provided, and the machining tool 30 performs reciprocating feeding machining on a machining surface at a preset frequency, wherein the preset frequency is changed within the range of 1-20 kHz.

In the processing method of the rubber roller 40 provided in this embodiment, the feeding processing setting of the processing tool 30 is changed within the preset frequency, so that a corresponding structure is formed on the processing surface of the rubber roller 40, and when the rubber roller 40 performs roll processing on the molding glue on the film layer, the molding glue on the surface of the film layer can form a fog surface structure, thereby reducing the generation of optical defects such as moire and interference fringes, and further improving the display effect of the display film layer 200.

It should be noted that, in the process of processing the rubber roller 40 of the embodiment, the feeding preset frequency of the processing tool 30 is dynamically changed within 1-20kHz, so as to form a matte structure; in particular, dynamic change control can be realized by processing equipment; specifically, the preset frequency is defined as t, and t is more than or equal to 1kHz and less than or equal to 20 kHz.

Referring to fig. 3, in the glue roller preparation process, the glue roller 40 rotates in the forward direction of R1 with the central shaft 41 as the rotation axis, and the preset rotation speed of R1 is in the range of 20-100 rpm. It should be noted that, if the preset rotation speed of the rubber roller 40 is defined as n, n is greater than or equal to 20rpm and less than or equal to 100 rpm.

In other embodiments, the rubber roll 40 may also rotate in the reverse direction of R1, and since the processing tool 30 has an asymmetric processing portion during the processing, when the processing method in this embodiment is used, the processing direction of the processing tool 30 needs to be adjusted so that the rubber roll 40 can be processed into a corresponding structure; in some embodiments, the processing tool 30 has symmetrical processing portions, and in this case, the processing tool 30 can be applied to the processing method regardless of the rotation mode of the rubber roller 40.

Further, in the cutting process, the processing tool 30 moves along the axial direction of the rubber roller 40 at a preset moving speed, and the processing tool 30 forms a spiral processing path 42 on the processing surface. Referring to fig. 3, in the cutting process, the processing tool 30 moves in the Y direction during the rotation of the rubber roller 40, so that a spiral processing path 42 can be formed on the processing surface of the rubber roller 40, and by setting the processing tool 30 to move in the Y direction, the processing tool 40 can be uniformly processed in the axial direction during the processing of the rubber roller 40, so that the processing surface can be processed completely, and the rolling range of the rubber roller 40 is increased.

Specifically, the preset speed is not more than 30 m/min. It can be understood that, when the preset speed is greater than 30m/min, the processing effect of the processing tool 30 is affected, and the rolling effect of the rubber roller 40 is reduced.

Specifically, the interval of each two adjacent processing paths 42 in the axial direction of the glue roller 40 is in the range of 5-50 um. Referring to fig. 3, L is a spacing range, and thus, uniform processing positions can be formed on the processing surface. It should be noted that, when the interval is defined as L, L is greater than or equal to 5um and less than or equal to 50 um.

In one embodiment, the feed depth of the machining tool 30 from the machining surface during the cutting process is no greater than 5 um. Referring to fig. 3, the processing tool 30 feeds the rubber roller 40 along the X direction, and by setting the feeding depth to be not more than 5um, the processing tool 30 can be prevented from cutting too deep on the rubber roller 40, which is not beneficial to the rolling process of the rubber roller 40.

The invention also provides a display film layer 200 and a processing method thereof, comprising a film layer preparation process and a line processing process, wherein the film layer preparation process provides the film layer; the grain processing procedure provides the rubber roller 40 in any of the above embodiments, the first surface of the film layer is coated with the molding glue, and the rubber roller 40 rolls the molding glue on the first surface to form a matte structure. Specifically, the molding compound is a UV compound, and the display film layer 200 formed by the molding compound can be fixed on the base layer 100 by ultraviolet light curing.

Furthermore, the method also comprises a protective layer attaching process after the texture processing process, and the protective layer covers one side of the molding glue, which is far away from the film layer. With this arrangement, the display film layer 200 can be prevented from being damaged by external impact during assembly and use.

Referring to fig. 2, the display film 10 has a first surface and a second surface opposite to the first surface, the display film layer 200 is attached to the first surface of the display film 10, and the prism layer 300 is attached to the second surface. Specifically, a prism molding glue is first coated on the second surface of the base layer 100, and then a prism glue roller is rolled on the prism molding glue to form the prism layer 300. Further, a protective film may be further covered on a side of the prism layer 300 away from the base layer 100, thereby protecting the entire display film 10.

Referring to fig. 5, compared with fig. 1, in the display film 10 provided by the present invention, the display film layer 200 in the above embodiment is formed on one side, and in the using process, light rays are diffusely reflected at the display film layer 200, so as to improve the diffusion effect of the display film 10, and when the display film 10 in this embodiment is applied to a display screen, the effect of obviously suppressing the generation of the interference fringes 20 can be achieved, so that the display film 10 has a good light ray conduction effect, and the display effect of the display film 10 is further improved. In the present invention, the display film 10 includes, but is not limited to, an integral film layer of a display screen, a brightness enhancement film, and the like, which are films or film layers for a display screen.

Referring to fig. 2 to 4, an embodiment of the invention further provides a display film 10, which includes a substrate 100 and a display film layer 200, wherein the display film layer 200 is disposed on one side of the substrate 100, and the display film layer 200 includes a plurality of protrusions 211 arranged along a straight line, wherein at least two of the protrusions 211 have different heights.

In the display film 10 of the present embodiment, by disposing the display film layer 200 composed of the plurality of convex portions 211 on the base layer 100, the height of at least two of the plurality of convex portions 211 is different, so that the matte structure is formed on the display film layer 200, and when light passes through the display film layer 200, the light is diffusely reflected at the display film layer 200, thereby improving the light diffusion effect of the display film 10. Compared with the conventional display film 10, the display film 10 of the present embodiment integrates the display film layer 200 and the base layer 100 into an integral structure, so that the display film 10 can also achieve the function of suppressing interference fringes on the premise of having a compact structure, and has a good use effect. In the display panel of the present embodiment, by providing the display film 10 in the above-described embodiment, the production of interference fringes can be suppressed, thereby improving the display effect of the display panel.

Specifically, referring to FIG. 4, the height of the protrusions 211 is H, and H ≦ 5 um. It can be understood that, with this arrangement, on the premise of achieving the matte effect of the display film 10, the display film layer 200 can be prevented from being oversized in thickness, so that the display film 10 has a compact structure.

In an embodiment, the plurality of protrusions 211 are sequentially arranged along a straight line to form the pillar portions 210, the display film 200 includes a plurality of groups of pillar portions 210 arranged in parallel, a spacing distance between two adjacent groups of pillar portions 210 is L, and L is greater than or equal to 5um and less than or equal to 50 um.

Specifically, in one embodiment, the film 200 is formed by curing a UV glue. The base layer 100 is a PET layer.

Further, referring to fig. 2, the display film 10 further includes a prism layer 300 disposed on a side of the base layer 100 away from the display film layer 200. Specifically, the prism layer 300 is formed by curing UV glue.

In one embodiment, referring to fig. 2, the prism layer 300 has a triangular cross section, and one side of the triangular prism layer 300 is attached to the substrate 100. In other embodiments, the cross section of the prism layer 300 may be configured as a polygon, an arc, etc., and is not limited herein.

Further, the display film 10 further includes at least two protective layers, wherein one protective layer is attached to a side of the display film layer 200 away from the base layer 100; the other protective layer is attached to the side of the prism layer 300 away from the base layer 100. It is understood that the display film layer 200 and the prism layer 300 may be protected by providing protective layers on both sides of the display film 10, respectively, thereby facilitating transportation and assembly of the display film 10.

The present invention also provides a display panel including the display film 10 in any one of the above embodiments. In the display panel of the present embodiment, by providing the display film 10 in the above embodiment, compared with a conventional display panel, the display panel of the present embodiment has a better diffusion effect, and in the display process of the display panel, the generation of optical defects such as moire fringes and interference fringes can be effectively reduced, thereby improving the display effect of the display panel. Specifically, using the display film 10 of the present embodiment, the haze can be achieved to 0.5% to 50%.

It should be noted that "480X" and "1200X" shown in fig. 6 to 9 are magnification factors.

Referring to fig. 6, which is an enlarged view of a partial structure of a comparative group in the related art, the film structure shown in fig. 6 is formed by chemical etching, and it is inconvenient to control a specific structure formed by etching during a process, and a process quality cannot be effectively controlled.

Referring to fig. 7, in the first embodiment, the interval range L1 is set to 20um, and the preset frequency is set to 1-5 kHz. During the display process, the haze of the display film layer 200 formed in this way can reach 22.52%, and the optical performance can be improved by 2.1% compared with that of the control group.

Referring to fig. 8, in the second embodiment, the interval range L2 is set to 30um, and the preset frequency is set to 5-10 kHz. During the display process, the haze of the display film layer 200 formed in this way can reach 22.84%, and the optical performance can be improved by 1.8% compared with that of the control group.

Referring to fig. 9, in the third embodiment, the interval range L3 is set to 20um, and the preset frequency is set to 1-10 kHz. During the display process, the haze of the display film layer 200 formed in this way can reach 26.78%, and the optical performance can be improved by 1.5% compared with that of the control group.

	Control group	Example one	Example two	EXAMPLE III
					Interval Range L (um)	Is free of	20	30	20
Predetermined frequency t (kHz)	Is free of	1-5	5-10	1-10
					Haze degree	26.26％	22.52％	22.84％	26.78％
Optical representation	100％	102.1％	101.8％	101.5％

Referring to the three-dimensional schematic diagram of the partial structure of the display film layer 200 shown in fig. 4, the display film 10 manufactured by the processing method is formed, the plurality of forming portions 210 are formed on the display film layer 200, and the plurality of forming portions 210 have differences in height, width, and the like, so that the display film layer 200 having the matte effect is formed, and when displaying is performed through the display film layer 200, the interference fringes 20 formed on the display film 10 can be suppressed, and the using effect is good.

It can be understood that, in the actual processing process, the diameter size of the rubber roller 40 is limited by the processing capacity of the processing equipment, specifically, in some embodiments, the diameter range of the rubber roller 40 is 150mm-600mm, when the diameter of the rubber roller 40 is 600mm, the rubber roller 40 can have a larger circumference, and under the condition that the axial length of the rubber roller 40 is determined, the processing area of the rubber roller 40 in one processing process can be increased, so that the processing efficiency is increased, and the use effect is good. When the diameter of the rubber roller 40 is 150mm, compared to the previous embodiment, when processing the display film layer 200 with the same size, the rotation speed of the rubber roller 40 and the conveying speed of the display film 10 need to be increased. In a preferred embodiment, the size of the glue roller 40 is 220 mm.

Further, the length of the rubber roller 40 may be set to 1200 mm. The arrangement is such that the haze of the display film 10 in the above example ranges from 0.5% to 50%. In other embodiments, the length of the rubber roller 40 can be increased or decreased according to the actual processing capacity of the processing equipment, so as to meet the processing requirement.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.