Composite film capable of improving light utilization rate

Abstract

The utility model discloses a composite membrane for improving light utilization rate, relates to composite membrane technical field, including polarization layer and optical layer, polarization layer includes central layer, central layer top and bottom both are provided with protective layer, the top of protective layer at the top is provided with wearing layer, the bottom of protective layer at the bottom is provided with pressure-sensitive adhesive layer, the optical layer is provided with the optical layer, the optical layer is provided with the optical layer. The optical layer comprises an optical thin film layer, a microprism layer is arranged at the top of the optical thin film layer, the microprism layer is arranged at the bottom of the pressure-sensitive adhesive layer, and a release layer is arranged at the bottom of the optical thin film layer. According to the light guide plate, light can be continuously refracted and reflected among different structural layers through the arrangement of the microprism layer, meanwhile, the optical layer and the polarization layer are combined, light energy emitted from the upper side and the lower side of the light guide plate can be collected, then the brightness can be improved, meanwhile, the composite film has a good wear-resistant effect through the arrangement of the wear-resistant layer, and the service life of the light guide plate is prolonged. The service life of the composite membrane can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of composite films, in particular to a composite film capable of improving light utilization efficiency. Background Art

[0002] A liquid crystal display module (LCD) is an electronic component used to display images and text. It consists of one or more liquid crystal screens that can display text, images, and other information. Composite films for LCD modules are multifunctional optical films that utilize a composite process to combine two or more optical films with different functions into a single film. This film enables thinner LCD modules and lowers costs while maintaining optical performance. The use of composite films not only improves backlight module assembly yield and reduces assembly time, but also saves labor costs and improves production efficiency, making it a development trend in the LCD industry.

[0003] The existing technology has the following deficiencies: the existing composite film is affected by the environment during use, which makes the internal structure of the composite film easy to loosen, and the optical structure inside the composite film is easy to shift, and the composite film is easy to have color difference, which in turn affects the working state of the liquid crystal display module. Utility Model Content

[0004] The purpose of the utility model is to provide a composite film that improves the utilization rate of light. Through the arrangement of the microprism layer, light can be continuously refracted and reflected between different structural layers. At the same time, the optical layer is combined with the polarizing layer to collect the light energy emitted from the upper and lower sides of the light guide plate, thereby improving the brightness. At the same time, the arrangement of the wear-resistant layer makes the composite film have good wear resistance, which can extend the service life of the composite film, so as to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a composite film for improving light utilization efficiency, comprising a polarizing layer, for use in imaging display of a liquid crystal display;

[0006] The optical layer is provided at the bottom of the polarizing layer to improve the utilization rate of light energy;

[0007] The polarizing layer includes a central layer, and protective layers are provided on the top and bottom of the central layer. The top of the protective layer is provided with a wear-resistant layer, and the bottom of the protective layer is provided with a pressure-sensitive adhesive layer.

[0008] The optical layer comprises an optical film layer, a microprism layer is arranged on the top of the optical film layer, the microprism layer is arranged on the bottom of the pressure-sensitive adhesive layer, and a release layer is arranged on the bottom of the optical film layer.

[0009] Preferably, a fixing layer is provided at the bottom of the pressure-sensitive adhesive layer, and the fixing layer and the pressure-sensitive adhesive layer are provided as an integrated structure.

[0010] Preferably, the micro-prism layer is configured as a triangular prism material component with equal spacing, and the fixing layer is staggered and engaged with the micro-prism layer.

[0011] Preferably, the front-view vertical cross-section of the fixed layer is configured to be a triangular structure identical to that of the microprism layer, and the width of the microprism layer is identical to that of the optical film layer.

[0012] Preferably, the central layer is a polyvinyl alcohol material component, and the protective layer is a triacetyl cellulose material component.

[0013] Preferably, the wear-resistant layer is a polycarbonate material component.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] By setting up the microprism layer, light energy can be continuously refracted and reflected between different structural layers, thereby improving the utilization rate of light energy. At the same time, the fixing layer can clamp and fix the microprism layer, so that the microprism layer can remain stable during operation. At the same time, by setting up the wear-resistant layer and the protective layer, the internal structure of the composite film is more solid, which can prevent the composite film from being delaminated due to environmental influences, and can also prevent the microprism layer from being offset and the composite film from having color difference, thereby ensuring the normal operation of the liquid crystal display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is the internal structure diagram of the utility model.

[0019] Figure 3 This is an exploded view of the three-dimensional structure of the polarizing layer of the present invention.

[0020] Figure 4 This is an exploded view of the optical layer three-dimensional structure of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Polarizing layer; 101. Center layer; 102. Protective layer; 103. Wear-resistant layer; 104. Pressure-sensitive adhesive layer; 105. Fixing layer;

[0023] 2. Optical layer; 201. Optical film layer; 202. Microprism layer; 203. Release layer. DETAILED DESCRIPTION

[0024] The utility model provides Figure 1 A composite film for improving light utilization efficiency shown includes a polarizing layer 1 and is used for imaging display of a liquid crystal display;

[0025] The optical layer 2 is arranged at the bottom of the polarizing layer 1 and is used to improve the utilization rate of light energy. Through the combination of the polarizing layer 1 and the optical layer 2, the composite film can improve the light utilization rate, avoid color difference in the liquid crystal display module, and thus ensure the working state of the liquid crystal display module.

[0026] In order to make the LCD display module to image normally, Figure 1-3 As shown, the polarizing layer 1 includes a central layer 101, and protective layers 102 are provided on the top and bottom of the central layer 101. The top of the top protective layer 102 is provided with a wear-resistant layer 103, and the bottom of the bottom protective layer 102 is provided with a pressure-sensitive adhesive layer 104. The arrangement of the central layer 101 and the protective layer 102 enables the polarizing layer 1 to have a good polarization effect, thereby enabling the liquid crystal display module to form images normally.

[0027] In order to improve the light utilization efficiency of the composite film, such as Figure 1-2 and Figure 4 As shown, the optical layer 2 includes an optical film layer 201, a microprism layer 202 is arranged on the top of the optical film layer 201, the microprism layer 202 is arranged at the bottom of the pressure-sensitive adhesive layer 104, and a release layer 203 is arranged at the bottom of the optical film layer 201. Through the arrangement of the microprism layer 202, the light energy can be continuously refracted and reflected inside different structural layers, which can improve the light utilization rate of the composite film.

[0028] In order to keep the micro-prism layer 202 stable inside the composite film, Figure 2-4 As shown, a fixing layer 105 is provided at the bottom of the pressure-sensitive adhesive layer 104, and the fixing layer 105 and the pressure-sensitive adhesive layer 104 are arranged as an integrated structure, the microprism layer 202 is arranged as a triangular prism material component with equal spacing, the fixing layer 105 and the microprism layer 202 are staggered and clamped, and the front-view vertical section of the fixing layer 105 is arranged to be a triangular structure that is the same as the front-view vertical section of the microprism layer 202, and the width dimension of the microprism layer 202 is the same as the width dimension of the optical film layer 201. The microprism layer 202 can be clamped and fixed by the fixing layer 105, which can prevent the microprism layer 202 from being offset due to environmental influences.

[0029] In order to ensure that the polarizing layer 1 can play a stable polarizing role, Figure 1-3 As shown, the central layer 101 is a polyvinyl alcohol material component, the protective layer 102 is a triacetyl cellulose material component, and the wear-resistant layer 103 is a polycarbonate material component. The wear-resistant layer 103 makes the composite film have good wear resistance, which can avoid scratches on the surface of the composite film and extend the service life of the composite film.

[0030] When producing a composite film for a liquid crystal display module, the protective layer 102 of triacetyl cellulose material is adhered to the top and bottom of the central layer 101 of polyvinyl alcohol material, and then the wear-resistant layer 103 of polycarbonate material is adhered to the top of the top protective layer 102, and at the same time, the pressure-sensitive adhesive layer 104 and the fixing layer 105 of the integrated structure are adhered to the bottom of the bottom protective layer 102, so that the production of the polarizing layer 1 is completed, and at the same time, the microprism layer 202 is adhered to the top of the optical film layer 201, and at the same time, the release layer 203 is adhered to the bottom of the optical film layer 201, thereby completing the production of the optical layer 2, and then the composite equipment is used to adhere the polarizing layer 1 to the top of the optical layer 2, so that the fixing layer 105 can be attached to the microprism layer 2. 02 Interlaced connection. When the composite film is used, the light energy of the microprism layer 202 can be continuously refracted and reflected between different structural layers, thereby improving the light utilization rate of the composite film. The setting of the wear-resistant layer 103 and the protective layer 102 makes the internal structure of the composite film more stable. At the same time, the fixed layer 105 can connect the microprism layer 202 to avoid the microprism layer 202 from being offset, thereby avoiding the looseness of the internal structure of the composite film, thereby extending the service life of the composite film. This embodiment specifically solves the problem in the prior art that the internal structure of the composite film for liquid crystal display modules is easy to be loose, which makes the composite film prone to color difference and affects the working state of the liquid crystal display module.

[0031] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A composite film for improving light utilization efficiency, characterized in that: include: A polarizing layer (1) is used for imaging display of a liquid crystal display; An optical layer (2) is provided at the bottom of the polarizing layer (1) and is used to improve the utilization rate of light energy; The polarizing layer (1) comprises a central layer (101), the central layer (101) is provided with a protective layer (102) on the top and bottom, the top of the protective layer (102) is provided with a wear-resistant layer (103), and the bottom of the protective layer (102) is provided with a pressure-sensitive adhesive layer (104); The optical layer (2) comprises an optical film layer (201), a microprism layer (202) is provided on the top of the optical film layer (201), the microprism layer (202) is provided on the bottom of the pressure-sensitive adhesive layer (104), and a release layer (203) is provided on the bottom of the optical film layer (201).

2. The composite film for improving light utilization efficiency according to claim 1, characterized in that: A fixing layer (105) is provided at the bottom of the pressure-sensitive adhesive layer (104), and the fixing layer (105) and the pressure-sensitive adhesive layer (104) are provided as an integrated structure.

3. The composite film for improving light utilization efficiency according to claim 2, characterized in that: The micro-prism layer (202) is configured as a triangular prism material component with equal spacing, and the fixing layer (105) is interlacedly engaged with the micro-prism layer (202).

4. The composite film for improving light utilization efficiency according to claim 3, characterized in that: The front-view vertical section of the fixed layer (105) is configured to have the same triangular structure as the front-view vertical section of the microprism layer (202), and the width dimension of the microprism layer (202) is the same as the width dimension of the optical film layer (201).

5. The composite film for improving light utilization efficiency according to claim 1, characterized in that: The central layer (101) is a polyvinyl alcohol material component, and the protective layer (102) is a triacetyl cellulose material component.

6. The composite film for improving light utilization efficiency according to claim 1, characterized in that: The wear-resistant layer (103) is a polycarbonate material component.

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