CN104166271A - Optical film, manufacturing method thereof, backlight module and display device - Google Patents

Abstract

The invention provides an optical film layer and its manufacturing method, a backlight module and a display device, including a light-shielding structure and an optical film group, the light-shielding structure is arranged on the edge of the optical film group, and the light-shielding structure is used for Light leakage is shielded from the edge of the optical film group. In the optical film layer and its manufacturing method, backlight module and display device provided by the present invention, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing Cost of production.

Description

An optical film layer and its manufacturing method, backlight module and display device

technical field

The invention relates to the field of display technology, in particular to an optical film layer and a manufacturing method thereof, a backlight module and a display device.

Background technique

In the field of liquid crystal display, the backlight module, especially the backlight module of small and medium-sized products, places the optical film set on the top of the product, so that there are problems such as light leakage and bright lines on the display screen around the edges of the backlight module. Aiming at the above problems, the solution provided by the prior art is to use a word-of-mouth glue on the edge of the optical film set. FIG. 1 is a schematic diagram of the structure of an optical film layer in the prior art. As shown in Figure 1, the word-of-mouth glue 101 is in the shape of word-of-mouth.

However, the above-mentioned solution has the following disadvantages: the said glue is thin and narrow, and the attachment operation is difficult, and it is easy to appear skewed, floating, etc., so the glue needs to be replaced frequently. During the replacement process of the word-of-mouth, it is easy to cause dirt and scratches on the surface of the optical film, thereby causing loss of related materials. In addition, through the above solution, the utilization rate of the glue material is less than 15%, resulting in a huge material cost. Therefore, the material losses caused by the solutions provided by the prior art substantially increase the production costs.

Contents of the invention

In order to solve the above problems, the present invention provides an optical film layer and its manufacturing method, a backlight module and a display device, which are used to solve the problem in the prior art that the production cost is greatly increased due to frequent replacement of the glue.

To this end, the present invention provides an optical film layer, including a light-shielding structure and an optical film group, the light-shielding structure is arranged on the edge of the optical film group, and the light-shielding structure is used to shield the optical film group Light leaks around the edges.

Optionally, the light-shielding structure is partially located on the edge of the optical film set, and partially located outside the optical film set.

Optionally, the outer edge of the light-shielding structure is aligned with the outer edge of the uppermost optical film in the optical film group.

Optionally, the light-shielding structure includes a base layer and a light-shielding layer, and the light-shielding layer is used to shield light leakage from edges of the optical film set.

Optionally, the light-shielding layer includes a light-shielding tape, and the light-shielding tape is attached to the base layer; or the light-shielding layer includes a light-shielding material, and the light-shielding material is printed on the base layer.

Optionally, the light-shielding structure includes a black light-shielding film.

The present invention also provides a backlight module, comprising any one of the above optical film layers.

The present invention also provides a display device, including a backplane, a plastic frame, a display panel and the above-mentioned backlight module, the display panel is located on the light-emitting side of the backlight module, and the plastic frame is located between the display panel and the backlight module. The outer side of the backlight module, the backplane wraps the outer side of the backlight module and the plastic frame.

Optionally, part of the light-shielding structure is located on the plastic frame, and the light-shielding structure blocks the gap between the optical film set and the plastic frame.

The present invention also provides a method for manufacturing an optical film layer, comprising: setting a light-shielding structure on the edge of the optical film group, and the light-shielding structure is used for shielding light leakage from the edge of the optical film group.

Optionally, the light-shielding structure includes a base layer and a light-shielding layer, and the light-shielding layer is used to shield light leakage from edges of the optical film group, and the step of arranging the light-shielding structure on the edge of the optical film group includes:

forming a protective film on the optical film group;

cutting the protective film to form the base layer;

The light shielding layer is formed on the base layer.

Optionally, the light-shielding layer includes a light-shielding tape, and the step of forming the light-shielding layer on the base layer includes: affixing the light-shielding tape on the base layer; or

The light-shielding layer includes a light-shielding material, and the step of forming the light-shielding layer on the base layer includes: printing the light-shielding material on the base layer.

Optionally, before the step of cutting the protective film to form the base layer, the step includes: presetting a cutting path on the protective film;

The step of cutting the protective film to form the base layer includes: cutting the protective film according to the cutting path to form the base layer;

The step of forming the light-shielding layer on the base layer includes: forming the light-shielding layer on the protective film according to the cutting path.

Optionally, the light-shielding structure includes a base layer and a light-shielding layer, and the light-shielding layer is used to shield light leakage from edges of the optical film group, and the step of arranging the light-shielding structure on the edge of the optical film group includes:

forming a protective film on the optical film group;

forming the light-shielding layer on the protective film;

The protective film is cut to form the base layer.

Optionally, the light-shielding layer includes a light-shielding tape, and the step of forming the light-shielding layer on the protective film includes: affixing the light-shielding tape on the base layer; or

The light-shielding layer includes a light-shielding material, and the step of forming the light-shielding layer on the protective film includes: printing the light-shielding material on the base layer.

Optionally, before the step of forming the light-shielding layer on the protective film, it includes: pre-setting a cutting path on the protective film;

The step of forming the light-shielding layer on the protective film includes: forming the light-shielding layer on the protective film according to the cutting path;

The step of cutting the protective film to form the base layer includes: cutting the protective film according to the cutting path to form the base layer.

Optionally, the light-shielding structure includes a black light-shielding film, and the step of arranging the light-shielding structure on the edge of the optical film group includes:

forming a black protective film on the optical film group;

The black protective film is cut to form the black light-shielding film.

Optionally, before the step of cutting the black protective film to form the black light-shielding film, the step includes: presetting a cutting path on the black protective film;

The step of cutting the black protective film to form the black light-shielding film includes: cutting the black protective film according to the cutting path to form the black light-shielding film.

The present invention has following beneficial effect:

In the optical film layer and its manufacturing method, backlight module and display device provided by the present invention, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing Cost of production.

Description of drawings

Fig. 1 is a schematic structural view of an optical film layer in the prior art;

FIG. 2 is a schematic structural view of an optical film layer provided by Embodiment 1 of the present invention;

Fig. 3 is the A-A sectional view of optical film layer shown in Fig. 2;

Fig. 4 is the application schematic diagram of optical film layer in the present embodiment;

Fig. 5 is a schematic diagram of a deformation scheme of the optical film layer shown in Fig. 4;

6 is a flow chart of a method for manufacturing an optical film layer provided by Embodiment 4 of the present invention;

FIG. 7 is a schematic diagram of the structure of the optical film layer after semi-connected cutting in this embodiment;

Fig. 8 is an enlarged view of part Q of the optical film layer shown in Fig. 7;

9 is a flow chart of a method for manufacturing an optical film layer provided by Embodiment 5 of the present invention;

FIG. 10 is a flowchart of a method for manufacturing an optical film layer provided by Embodiment 6 of the present invention.

Detailed ways

In order for those skilled in the art to better understand the technical solution of the present invention, the optical film layer and its manufacturing method, backlight module and display device provided by the present invention will be described in detail below with reference to the accompanying drawings.

Embodiment one

FIG. 2 is a schematic structural diagram of an optical film layer provided by Embodiment 1 of the present invention, and FIG. 3 is a cross-sectional view of the optical film layer shown in FIG. 2 . As shown in Figure 2 and Figure 3, the optical film layer includes a light-shielding structure 102 and an optical film group 103, the light-shielding structure 102 is arranged on the edge of the optical film group 103, and the light-shielding structure 103 is used for shielding Light leaks from the edges of the optical film group. Preferably, the optical film set includes a prism sheet, a diffusion sheet, and a composite prism sheet. Optionally, the light shielding structure 102 is partially located on the edge of the optical film set 103 and partially located outside the optical film set 103 .

FIG. 4 is a schematic diagram of the application of the optical film layer in this embodiment. As shown in Figure 4, the optical film set 103 is located on the light exit side of the light guide plate 104, and a plastic frame 105 is arranged on the outside of the optical film set 103 and the light guide plate 104, and the light guide plate 104 and the light guide plate 104 The outer side of the plastic frame 105 is provided with a back plate 106 , and the back plate 106 wraps the light guide plate 104 and the plastic frame 105 . A part of the light shielding structure 102 is located on the edge of the optical film set 103 , and another part of the light shielding structure 102 is located on the plastic frame 105 .

Optionally, the outer edge of the light-shielding structure is aligned with the outer edge of the uppermost optical film in the optical film group. FIG. 5 is a schematic diagram of a variant of the optical film layer shown in FIG. 4 . Comparing the optical film layer shown in Figure 4 with the optical film layer shown in Figure 5, the outer edge of the light-shielding structure of the optical film layer shown in Figure 4 exceeds the outer edge of the uppermost optical film in the optical film group, However, the outer edge of the light-shielding structure of the optical film layer shown in FIG. 5 is aligned with the outer edge of the uppermost optical film in the optical film group. As shown in FIG. 5 , the uppermost optical film of the optical film group 103 is the optical film 107 . Outer edges of the light shielding structure 102 are aligned with outer edges of the optical film 107 .

In this embodiment, the light-shielding structure includes a base layer and a light-shielding layer, and the light-shielding layer is used to shield light leakage from edges of the optical film group. Optionally, the light-shielding layer includes a light-shielding tape, and the light-shielding tape is attached on the base layer. In practical applications, the light-shielding tape may be black tape. Optionally, the light-shielding layer includes a light-shielding material, and the light-shielding material is printed on the base layer. Preferably, the light-shielding material is black optical ink. In this embodiment, the black optical ink is printed on the base layer, which breaks through the technical bottleneck that the prism sheet cannot be printed, and provides necessary technical support for further reducing the production cost.

In this embodiment, the light-shielding structure includes a black light-shielding film. The black light-shielding film is used as the upper side protective film of the uppermost optical film of the optical film group, and the constituent material of the black light-shielding film includes black polyester film, which makes the material of the black light-shielding film consistent with the wording The shading performance of the glue is consistent with the material, which saves the expensive material cost, attachment cost and incidental quality cost of the word glue, and finally greatly reduces the production cost and improves the production efficiency.

In the optical film layer provided in this example, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing production cost.

Embodiment two

This embodiment provides a backlight module, including the optical film layer provided in Embodiment 1. For details, please refer to the description in Embodiment 1 above, which will not be repeated here.

In the backlight module provided by this embodiment, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing production cost.

Embodiment three

This embodiment provides a display device, including a backplane, a plastic frame, a display panel, and the backlight module provided in Embodiment 2. Referring to Fig. 4 and Fig. 5, the display panel (not shown in the figure) is located on the light emitting side of the backlight module, the plastic frame 105 is located outside the display panel and the backlight module, and the backlight The board 106 is wrapped on the outside of the backlight module and the plastic frame 105 . For details about the optical film layer and the backlight module, reference may be made to the descriptions in Embodiment 1 and Embodiment 2 above, and will not be repeated here.

In the display device provided by this embodiment, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing production cost.

Embodiment four

FIG. 6 is a flowchart of a method for manufacturing an optical film layer provided by Embodiment 4 of the present invention. This embodiment provides a method for manufacturing an optical film layer, comprising: setting a light-shielding structure on the edge of the optical film group, and the light-shielding structure is used to shield light leakage from the edge of the optical film group. Optionally, the light-shielding structure is partially located on the edge of the optical film set, and partially located outside the optical film set. Optionally, the outer edge of the light-shielding structure is aligned with the outer edge of the uppermost optical film in the optical film group.

In this embodiment, the light-shielding structure includes a base layer and a light-shielding layer, and the light-shielding layer is used to shield light leakage from edges of the optical film group. As shown in Figure 6, the step of arranging a light-shielding structure on the edge of the optical film group includes:

Step 601, forming a protective film on the optical film set.

The protective film may be a transparent protective film, and the transparent protective film is used as an upper protective film of the uppermost optical film of the optical film group.

Step 602 , cutting the protective film to form the base layer.

In this embodiment, the protective film is cut with inner and outer double-layer knives, the inner and outer double-layer knives are arranged in a zigzag shape, the outer knives perform shape cutting, and the inner knives perform precision cutting. The inner and outer double-layer knife only cuts the protective film without cutting the uppermost optical film. After the cutting is completed, the middle part of the protective film is removed, and the remaining edge part forms the base layer. Preferably, the protective film is semi-connected and cut. FIG. 7 is a schematic diagram of the structure of the optical film layer after semi-connection cutting in this embodiment. As shown in FIG. 7 , the protective film is cut using a semi-connected cutting process to form a light-shielding portion 201 and a waste portion 202 . The light-shielding part 201 and the waste part 202 are intermittently connected, and the waste part 202 is peeled off during assembly. FIG. 8 is an enlarged view of part Q of the optical film layer shown in FIG. 7 . As shown in FIG. 8 , the light-shielding portion 201 and the waste portion 202 are connected through a connecting portion 203 . Although the semi-joined cutting process cuts the protective film, the protection of the uppermost optical film by the protective film still exists. Before assembling the uppermost optical film, the protective film can ensure that the uppermost optical film is not damaged, thereby ensuring that the microstructure on the surface of the uppermost optical film is not damaged, and avoiding the luminescence of the uppermost optical film Reduced reliability.

In this embodiment, the protective film is cut by using a chemical etching process. The constituent materials of the protective film are generally polypropylene (Polypropylene, PP) and polyethylene terephthalate (Polyethylene Terephthalate, PET), and the uppermost optical film is generally UV resin. Taking advantage of the difference in material properties, an appropriate etchant is selected to etch only the protective film without damaging the uppermost optical film. Moreover, the etching depth of the protective film can be controlled by controlling the amount of the etching solution, thereby ensuring that the microstructure on the surface of the uppermost optical film is not damaged, and avoiding the reduction of the reliability of light emission of the uppermost optical film.

Step 603, forming the light shielding layer on the base layer.

In this embodiment, the light-shielding layer includes a light-shielding tape, and the light-shielding tape may be a black tape. The step 603 includes: affixing the light-shielding tape on the base layer. Optionally, the light-shielding layer includes a light-shielding material, and the light-shielding material may be black optical ink. The step 603 includes: printing the light-shielding material on the base layer. In this embodiment, the black optical ink is printed on the base layer, which breaks through the technical bottleneck that the prism sheet cannot be printed, and provides necessary technical support for further reducing the production cost.

In this embodiment, before the step 602, it includes: setting a cutting path on the protective film in advance. The step 602 includes: cutting the protective film according to the cutting path to form the base layer. The step 603 includes: forming the light-shielding layer on the protective film according to the cutting path.

In the manufacturing method of the optical film layer provided by the present invention, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing production cost.

Embodiment five

FIG. 9 is a flowchart of a method for manufacturing an optical film layer provided by Embodiment 5 of the present invention. This embodiment provides a method for manufacturing an optical film layer, comprising: setting a light-shielding structure on the edge of the optical film group, and the light-shielding structure is used to shield light leakage from the edge of the optical film group. Optionally, the light-shielding structure is partially located on the edge of the optical film set, and partially located outside the optical film set. Optionally, the outer edge of the light-shielding structure is aligned with the outer edge of the uppermost optical film in the optical film group.

In this embodiment, the light-shielding structure includes a base layer and a light-shielding layer, and the light-shielding layer is used to shield light leakage from edges of the optical film group. As shown in Figure 9, the step of arranging a light-shielding structure on the edge of the optical film group includes:

Step 901, forming a protective film on the optical film set.

The protective film may be a transparent protective film, and the transparent protective film is used as an upper protective film of the uppermost optical film of the optical film group.

Step 902, forming the light-shielding layer on the protective film.

In this embodiment, the light-shielding layer includes a light-shielding tape, and the light-shielding tape may be a black tape. The step 902 includes: pasting the light-shielding tape on the base layer. Optionally, the light-shielding layer includes a light-shielding material, and the light-shielding material may be black optical ink. The step 902 includes: printing the light-shielding material on the base layer. Printing the black optical ink on the base layer breaks through the technical bottleneck that the prism sheet cannot be printed, and provides necessary technical support for further reducing the production cost.

Step 903 , cutting the protective film to form the base layer.

In this embodiment, the protective film is cut with inner and outer double-layer knives, the inner and outer double-layer knives are arranged in a zigzag shape, the outer knives perform shape cutting, and the inner knives perform precision cutting. The inner and outer double-layer knife only cuts the protective film without cutting the uppermost optical film. After the cutting is completed, the middle part of the protective film is removed, and the remaining edge part forms the base layer. Preferably, the protective film is semi-connected and cut. The protective film is cut using a semi-connected cutting process to form a light-shielding part and a waste part. The light-shielding part and the discarded part are connected intermittently, and the discarded part is peeled off during assembly. Although the semi-joined cutting process cuts the protective film, the protection of the uppermost optical film by the protective film still exists. Before assembling the uppermost optical film, the protective film can ensure that the uppermost optical film is not damaged, thereby ensuring that the microstructure on the surface of the uppermost optical film is not damaged, and avoiding the luminescence of the uppermost optical film Reduced reliability.

In this embodiment, the protective film may also be cut by using a chemical etching process. The constituent materials of the protective film are generally polypropylene (Polypropylene, PP) and polyethylene terephthalate (Polyethylene Terephthalate, PET), and the uppermost optical film is generally UV resin. Taking advantage of the difference in material properties, an appropriate etchant is selected to etch only the protective film without damaging the uppermost optical film. Moreover, the etching depth of the protective film can also be controlled by controlling the amount of the etching solution, thereby ensuring that the microstructure on the surface of the uppermost optical film is not damaged, and avoiding the reduction of the reliability of light emission of the uppermost optical film.

In this embodiment, before the step 902, it includes: setting a cutting path on the protective film in advance. The step 902 includes: forming the light-shielding layer on the protective film according to the cutting path. The step 903 includes: cutting the protective film according to the cutting path to form the base layer.

In the manufacturing method of the optical film layer provided by the present invention, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing production cost.

Embodiment six

FIG. 10 is a flowchart of a method for manufacturing an optical film layer provided by Embodiment 6 of the present invention. This embodiment provides a method for manufacturing an optical film layer, comprising: setting a light-shielding structure on the edge of the optical film group, and the light-shielding structure is used to shield light leakage from the edge of the optical film group. Optionally, the light-shielding structure is partially located on the edge of the optical film set, and partially located outside the optical film set. Optionally, the outer edge of the light-shielding structure is aligned with the outer edge of the uppermost optical film in the optical film group.

In this embodiment, the light-shielding structure includes a black light-shielding film. As shown in Figure 10, the step of arranging a light-shielding structure on the edge of the optical film group includes:

Step 1001, forming a black protective film on the optical film set.

In this embodiment, the black light-shielding film is used as the upper protective film of the uppermost optical film of the optical film group, and the constituent material of the black light-shielding film includes black polyester film, so that the black light-shielding film The material is consistent with the shading performance of the glue, which saves the expensive material cost, attachment cost and incidental quality cost of the glue, and finally greatly reduces the production cost and improves the production efficiency.

Step 1002 , cutting the black protective film to form the black light-shielding film.

In this embodiment, the black protective film is cut with inner and outer double-layer knives, the inner and outer double-layer knives are arranged in a zigzag shape, the outer knives perform shape cutting, and the inner knives perform precision cutting. The inner and outer double-layer knife only cuts off the black protective film but does not cut off the uppermost optical film. After the cutting is completed, the middle part of the black protective film is removed, and the remaining edge part forms the base layer. Preferably, half-joint cutting is performed on the black protective film. The black protective film is cut using a semi-connected cutting process to form a light-shielding part and a waste part. The light-shielding part and the discarded part are connected intermittently, and the discarded part is peeled off during assembly. Although the black protective film is cut off by the semi-joining cutting process, the protection of the uppermost optical film by the black protective film still exists. Before assembling the uppermost optical film, the black protective film can ensure that the uppermost optical film is not damaged, thereby ensuring that the microstructure on the surface of the uppermost optical film is not damaged, and preventing the uppermost optical film from emitting light Reduced reliability.

In this embodiment, the black protective film may also be cut by using a chemical etching process. The constituent materials of the black protective film are generally polypropylene (Polypropylene, PP) and polyethylene terephthalate (Polyethylene Terephthalate, PET), and the uppermost optical film is generally UV resin. Taking advantage of the difference in material properties, an appropriate etchant is selected to etch only the black protective film without damaging the uppermost optical film. Moreover, the etching depth of the black protective film can be controlled by controlling the amount of the etching solution, thereby ensuring that the microstructure on the surface of the uppermost optical film is not damaged, and avoiding the reduction of the reliability of light emission of the uppermost optical film.

In this embodiment, before the step 1002, it includes: setting a cutting path on the black protective film in advance. The step 1002 includes: cutting the black protective film according to the cutting path to form the black light-shielding film.

In the manufacturing method of the optical film layer provided by the present invention, the light-shielding structure is arranged on the edge of the optical film group, which saves material cost, attachment cost and loss cost of related materials, thereby greatly reducing production cost.

It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (18)

1. an optical film, is characterized in that, comprises light-shielding structure and optical diaphragm group, and described light-shielding structure is arranged at the edge of described optical diaphragm group, and described light-shielding structure is for covering the edge light leak of described optical diaphragm group.

2. optical film according to claim 1, is characterized in that, described light-shielding structure is partly positioned on the edge of described optical diaphragm group, and part is positioned at the outside of described optical diaphragm group.

3. optical film according to claim 1, is characterized in that, the outward flange of described light-shielding structure aligns with the outward flange of the superiors' blooming piece in described optical diaphragm group.

4. optical film according to claim 1, is characterized in that, described light-shielding structure comprises basalis and light shield layer, and described light shield layer is for covering the edge light leak of described optical diaphragm group.

5. optical film according to claim 4, is characterized in that, described light shield layer comprises shading rubber belt, and described shading rubber belt is attached on described basalis; Or

Described light shield layer comprises light screening material, and described light screening material is printed on described basalis.

6. optical film according to claim 1, is characterized in that, described light-shielding structure comprises black light-blocking film.

7. a backlight module, is characterized in that, comprises by the arbitrary described optical film of claim 1 to 6.

8. a display device, it is characterized in that, comprise backboard, glue frame, display panel and backlight module claimed in claim 7, described display panel is positioned at the bright dipping side of described backlight module, described glue frame is positioned at the outside of described display panel and described backlight module, and described backboard is wrapped in the outside of described backlight module and described glue frame.

9. display device according to claim 8, is characterized in that, the described light-shielding structure of part is positioned on described glue frame, and described light-shielding structure blocks the gap between described optical diaphragm group and described glue frame.

10. a manufacture method for optical film, is characterized in that, comprising:

On the edge of optical diaphragm group, light-shielding structure is set, described light-shielding structure is for covering the edge light leak of described optical diaphragm group.

The manufacture method of 11. optical films according to claim 10, it is characterized in that, described light-shielding structure comprises basalis and light shield layer, and described light shield layer is for covering the edge light leak of described optical diaphragm group, and the described step that light-shielding structure is set on the edge of optical diaphragm group comprises:

In described optical diaphragm group, form diaphragm;

Described diaphragm is cut to form described basalis;

On described basalis, form described light shield layer.

The manufacture method of 12. optical films according to claim 11, is characterized in that, described light shield layer comprises shading rubber belt, and the described step that forms described light shield layer on described basalis comprises: on described basalis, attach described shading rubber belt; Or

Described light shield layer comprises light screening material, and the described step that forms described light shield layer on described basalis comprises: on described basalis, print described light screening material.

The manufacture method of 13. optical films according to claim 11, is characterized in that, comprises: on described diaphragm, set in advance and cut path before the described step that described diaphragm is cut to form described basalis;

The described step that described diaphragm is cut to form described basalis comprises: according to the described path that cuts, cut described diaphragm to form described basalis;

The described step that forms described light shield layer on described basalis comprises: according to the described path that cuts, form described light shield layer on described diaphragm.

The manufacture method of 14. optical films according to claim 10, it is characterized in that, described light-shielding structure comprises basalis and light shield layer, and described light shield layer is for covering the edge light leak of described optical diaphragm group, and the described step that light-shielding structure is set on the edge of optical diaphragm group comprises:

In described optical diaphragm group, form diaphragm;

On described diaphragm, form described light shield layer;

Described diaphragm is cut to form described basalis.

The manufacture method of 15. optical films according to claim 14, is characterized in that, described light shield layer comprises shading rubber belt, and the described step that forms described light shield layer on described diaphragm comprises: on described basalis, attach described shading rubber belt; Or

Described light shield layer comprises light screening material, and the described step that forms described light shield layer on described diaphragm comprises: on described basalis, print described light screening material.

The manufacture method of 16. optical films according to claim 14, is characterized in that, comprises: on described diaphragm, set in advance and cut path before the described step that forms described light shield layer on described diaphragm;

The described step that forms described light shield layer on described diaphragm comprises: according to the described path that cuts, form described light shield layer on described diaphragm;

The described step that described diaphragm is cut to form described basalis comprises: according to the described path that cuts, cut described diaphragm to form described basalis.

The manufacture method of 17. optical films according to claim 10, is characterized in that, described light-shielding structure comprises black light-blocking film, and the described step that light-shielding structure is set on the edge of optical diaphragm group comprises:

In described optical diaphragm group, form black protective film;

Described black protective film is cut to form described black light-blocking film.

The manufacture method of 18. optical films according to claim 17, is characterized in that, comprises: on described black protective film, set in advance and cut path before the described step that described black protective film is cut to form described black light-blocking film;

The described step that described black protective film is cut to form described black light-blocking film comprises: according to the described path that cuts, cut described black protective film to form described black light-blocking film.