阅读说明：本技术 一种新型反射片结构 (Novel reflector plate structure ) 是由 陈帮民 吴蕾 崔慧 王方方 吴磊 汪慧玲 余江 于 2020-06-25 设计创作，主要内容包括：本发明公开一种新型反射片结构,包括PET键合层、TIO2键合层和微结构层。其中PET键合层设有中下两层,TIO2键合层置于PET键合层之间,最上面的PET键合层上设有微结构层,微结构层为凹凸结构。本发明提出具有微结构结构层的反射片可以有效遮蔽产品异物白点,对产品良率有很大改善,降低成品不良,提升整体背光良率；可以有效改善反射片和导光板之间吸附不良的问题；可以降低因维修导光板与反射片之间异物从而造成的材料报废成本以及人工维修工时成本。解决了现有技术中背光组装反射片时,反射片与导光板直接接触,如果反射片和导光板之间存在微小颗粒异物时,在背光上则会显现出白点不良,人员需要在重新返工维修,增加材料和人工成本的问题。(The invention discloses a novel reflector plate structure which comprises a PET bonding layer, a TIO2 bonding layer and a microstructure layer. The PET bonding layer is provided with a middle layer and a lower layer, the TIO2 bonding layer is arranged between the PET bonding layers, the uppermost PET bonding layer is provided with a microstructure layer, and the microstructure layer is of a concave-convex structure. The reflector plate with the microstructure structure layer can effectively shield white spots of foreign matters of products, greatly improve the yield of the products, reduce the defects of finished products and improve the yield of the whole backlight; the problem of poor adsorption between the reflecting sheet and the light guide plate can be effectively solved; the material scrapping cost and the manual maintenance man-hour cost caused by maintaining foreign matters between the light guide plate and the reflector plate can be reduced. The problem of during the equipment reflector plate is shaded among the prior art, reflector plate and light guide plate direct contact, if there is the tiny particle foreign matter between reflector plate and the light guide plate, then can show that the white point is bad on being shaded, personnel need be in the maintenance of doing over again, increase material and cost of labor is solved.)

1. The utility model provides a novel reflector plate structure, specifically is novel reflector plate (1), its characterized in that, includes PET bonding layer (11), TIO2 bonding layer (12) and micro-structure layer (13), PET bonding layer (11) are equipped with two-layer down, TIO2 bonding layer (12) are arranged in between PET bonding layer (11), topmost be equipped with micro-structure layer (13) on PET bonding layer (11), micro-structure layer (13) are concave-convex structure.

2. The novel reflector plate structure as claimed in claim 1, wherein the thickness H of the microstructure layer (13) is 1-5 μm, the distance P between two adjacent recesses of the microstructure layer (13) is 30-60 μm, and the recess angle D of the microstructure layer (13) is 0-180 °.

3. The method for forming a novel reflector plate structure as claimed in any one of claims 1-2, comprising the steps of:

s1, gluing and pressing: uniformly coating UV adhesive particles on the uppermost PET bonding layer (11), and using a front pressing wheel (21) to enter the adhesive for pressing;

s2, structural printing: -transferring the structure to the material by means of the microstructures on the structure wheel (22);

s3, UV light irradiation: using a UV lamp (24) to irradiate, and promoting the UV glue to generate linkage to be cured and molded;

s4, auxiliary demolding: and the structure forming surface is solidified through a rear structure wheel (23) to assist demoulding.

4. The lamination device for the microstructure layer of the novel reflector plate structure as claimed in claim 3, comprising a base (3), wherein the base (3) is provided with a screw rod (9) and a screw rod protection sleeve (8) which are rotatably connected, and the screw rod (9) is disposed in the screw rod protection sleeve (8).

5. The lamination device for microstructure layer with novel reflector structure as claimed in claim 4, wherein one end of the base (3) is provided with a first motor (4), an output end of the first motor (4) is connected to the base (3) and is in transmission connection with a lead screw (9), and the lead screw (9) penetrates through the cross bar (10) and is in threaded fit with the cross bar (10).

6. The lamination device for the microstructure layer of the novel reflector plate structure as claimed in claim 5, wherein the lower end of the cross bar (10) is provided with a connecting rod (11), a front pressing wheel (21) rotatably connected with the connecting rod (11) is arranged between the connecting rods (21), a conveyor belt (7) is arranged under the front pressing wheel (21), the conveyor belt (7) is rotatably connected with the upright post (5), one end of the upright post (5) is provided with a second motor (6), and the output end of the second motor (6) is communicated with the upright post (5) and is in transmission connection with the conveyor belt (7).

Technical Field

The invention belongs to the field of reflector plate structures, and particularly relates to a novel reflector plate structure.

Background

The existing reflector plate structure is basically a three-layer structure: PET layer + TIO2 layer + PET layer or two layers: the PET layer + TIO2 layer, the topmost PET layer structure of reflector plate is the smooth surface basically, and during the assembly in a poor light, reflector plate and light guide plate direct contact, if there is the tiny granule foreign matter between reflector plate and the light guide plate, then can show the white point on being poor in a poor light, and the personnel need be in rework maintenance again, increase material and cost of labor.

The invention provides a novel reflector structure, wherein a microstructure is added on the uppermost PET layer of the reflector, when fine particle foreign matters exist, the defect can be shielded, and the defect cannot be displayed on backlight, so that the labor and material cost is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a novel reflector plate structure, which solves the problems that when a reflector plate is assembled in a backlight mode in the prior art, the reflector plate is in direct contact with a light guide plate, and if micro particle foreign matters exist between the reflector plate and the light guide plate, white point defects appear on the backlight, personnel need to rework and maintain again, and the material cost and the labor cost are increased.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a novel reflector plate structure, specifically is novel reflector plate, its characterized in that, includes PET bonding layer, TIO2 bonding layer and micro-structure layer, the PET bonding layer is two-layer down in being equipped with, TIO2 bonding layer is arranged in between the PET bonding layer, topmost be equipped with the micro-structure layer on the PET bonding layer, the micro-structure layer is concave-convex structure.

Further, the thickness H of the microstructure layer is 1-5 um, the distance P between two adjacent depressions of the microstructure layer is 30-60 um, and the depression angle D of the microstructure layer is 0-180 degrees.

Further, a forming method of the novel reflector plate structure comprises the following steps:

s1, gluing and pressing: uniformly coating UV adhesive particles on the uppermost PET bonding layer, and performing adhesive pressing by using a front pressing wheel;

s2, structural printing: transferring the structure to the material through the microstructures on the structure wheel;

s3, UV light irradiation: UV lamp irradiation is used for promoting the UV glue to generate linkage and to be cured and molded;

s4, auxiliary demolding: and the structure forming surface is solidified through the rear structure wheel to assist demoulding.

Furthermore, a micro-structure layer compression fittings of novel reflector plate structure, includes the base, be equipped with the lead screw and the lead screw lag of rotating the connection on the base, the lead screw is arranged in the lead screw lag.

Furthermore, one end of the base is provided with a first motor, the output end of the first motor is communicated with the base and is in transmission connection with a screw rod, and the screw rod penetrates through the cross rod and is in threaded fit with the cross rod.

Further, the lower extreme of horizontal pole is equipped with the connecting rod, be equipped with the preceding pinch roller of rotating the connection between the connecting rod, be equipped with the conveyer belt under the preceding pinch roller, the conveyer belt rotates with the stand to be connected, the one end of stand is equipped with the second motor, the output intercommunication stand of second motor to be connected with the conveyer belt transmission.

The invention has the beneficial effects that:

1. the reflector plate with the microstructure structure layer can effectively shield white spots of foreign matters of products, greatly improve the yield of the products, reduce the defects of finished products and improve the yield of the whole backlight;

2. the invention can effectively improve the problem of poor adsorption between the reflector plate and the light guide plate;

3. the invention can reduce the material scrap cost and the labor maintenance time cost caused by maintaining foreign matters between the light guide plate and the reflector plate.

Drawings

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

FIG. 1 is a schematic view of an overall structure of a conventional reflector plate;

FIG. 2 is an overall structural elevation view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic view of a molding process of an embodiment of the present invention;

FIG. 5 is a schematic diagram of a detailed structure of an upper surface of a reflector according to an embodiment of the present invention;

FIG. 6 is a comparison of prior art reflector plate optical path and the optical path of the present invention;

fig. 7 is a schematic structural diagram of a microstructure layer laminating device according to an embodiment of the invention.

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.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

As shown in fig. 1, the conventional reflective sheet is generally divided into two layers or three layers, wherein the two layers and the three layers are stacked of a PET layer and a TIO2 layer, and when the two layers are stacked, the PET layer is disposed at the upper end of the TIO2 layer; when three layers are laminated, the TIO2 layer is placed between two PET layers. The uppermost PET layer structure is basically a smooth surface, when backlight assembly is carried out, the reflecting sheet is in direct contact with the light guide plate, and if micro particle foreign matters exist between the reflecting sheet and the light guide plate, white spots are poor on backlight, so that personnel need to rework and repair again, and the material cost and the labor cost are increased.

The invention adds the microstructure on the uppermost PET layer of the prior reflector plate, and when fine particle foreign matters exist, the defect can be shielded, and the defect can not be displayed on the backlight, thereby reducing the labor and material cost. As shown in fig. 2 and 3, the novel reflector 1 includes a PET bonding layer 11, a TIO2 bonding layer 12, and a microstructure layer 13, where the PET bonding layer 11 has two middle and lower layers, and the TIO2 bonding layer 12 is disposed between the PET bonding layers 11. The uppermost PET bonding layer 11 is provided with a microstructure layer 13, the microstructure layer 13 is of a V-shaped concave-convex structure, the thickness H of the microstructure layer 13 is 1-5 um, the distance P between two adjacent depressions of the microstructure layer 13 is 30-60 um, and the depression angle D of the microstructure layer 13 is 0-180 degrees. The material of the micro-structure layer 13 is UV glue particles. It should be noted that the surface microstructure of the reflective sheet having the microstructure layer 13 is not limited to the V-shaped concave-convex structure, and may be other structures.

As shown in fig. 4, a method for forming a novel reflector plate structure includes the following steps:

firstly, evenly coat the UV micelle on the PET bonding layer 11 of the top, then use preceding pinch roller 21 to advance gluey pressfitting to control long-pending glue volume even and the shaping membrane is thick, then the microstructure on the rethread structure wheel 22, with the structure rendition to the material on, use UV lamp 24 to shine after that, UV luminous intensity impels UV to glue to produce to link and solidification shaping, at last rethread back structure wheel 23, make the supplementary drawing of patterns after the solidification of structure shaping face, thereby finally produce required novel reflector plate 1. It should be noted that the microstructure on the surface of the reflector with the microstructure layer 13 is formed by the front and rear pressing wheels 21 and the structure wheel 22, and other methods are also possible to form the microstructure.

In summary, the forming method of the novel reflector plate structure comprises the following steps:

s1, gluing and pressing: uniformly coating UV colloidal particles on the uppermost PET bonding layer 11, and feeding glue by using a front pressing wheel 21 for pressing;

s2, structural printing: transferring the structure to the material through the microstructures on the structure wheel 22;

s3, UV light irradiation: UV lamps 24 are used for irradiating to promote the UV glue to generate linkage for curing and forming;

s4, auxiliary demolding: the structure forming surface is solidified through the rear structure wheel 23, and then the demoulding is assisted.

As shown in fig. 5, in an actual situation, the fine particle foreign matters 14 originally existing on the PET bonding layer 11 on the upper surface of the novel reflector 1 are all distributed between the microstructure layers 13 under the action of the microstructure layers 13, and it should be noted that the height of the fine particle foreign matters 14 is lower than the thickness of the microstructure layers 13, so that when the light guide plate is in contact with the novel reflector 1, all the fine particle foreign matters 14 are shielded and will not appear on the screen.

As shown in fig. 6, in a situation of surface smooth surface on a normal reflective sheet, the light path passing through the dots is relatively divergent; in the case of a microstructure on the upper surface, the microstructure has a converging effect on light, the light paths passing through the dots are relatively concentrated, and the overall optical performance of the microstructure reflector is higher than that of a normal reflector.

As shown in fig. 7, the microstructure layer laminating device of the present invention includes a base 3, wherein the base 3 is provided with a screw rod 9 and a screw rod protecting sleeve 8, which are rotatably connected, and the screw rod 9 is disposed in the screw rod protecting sleeve 8. One end of the base 3 is provided with a first motor 4, and the output end of the first motor 4 is communicated with the base 3 and is in transmission connection with a screw rod 9. The screw rod 9 penetrates through the cross rod 10 and is in threaded fit with the cross rod 10. The lower extreme of horizontal pole 10 is equipped with connecting rod 11, be equipped with the preceding pinch roller 21 of rotating the connection between the connecting rod 11, be equipped with conveyer belt 7 under the preceding pinch roller 21, conveyer belt 7 rotates with stand 5 to be connected, the one end of stand 5 is equipped with second motor 6, the output intercommunication stand 5 of second motor 6 to be connected with conveyer belt 7 transmission.

When the device is used, the PET bonding layer 11 uniformly coated with the UV adhesive particles on the uppermost surface is placed in a mold, then the mold is placed on the conveyor belt 7, and then the second motor 6 is started to control the conveyor belt 7 to rotate. When the mold is conveyed to the position under the front pressing wheel 21, the second motor 6 is closed, then the first motor 4 is started to enable the screw rod 9 to rotate, the cross rod 10 and the front pressing wheel 21 are further driven to move downwards, the first motor 4 is closed when the front pressing wheel 21 is attached to the PET bonding layer 11 in the mold, then the second motor 6 is started again and rotates forwards and backwards for multiple times, and the front pressing wheel 21 is enabled to press UV adhesive particles. And after the pressing is finished, the first motor 4 is reversely rotated to return the front pressing wheel 21 to the initial position, and then the second motor 6 is started to convey the die away by the conveying belt 7.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.