Optical reflection film with shielding structure

Abstract

The utility model relates to the technical field of optical diaphragms, in particular to an optical reflecting diaphragm with a shielding structure, which comprises an emitting plate, a first diffusion sheet, a second diffusion sheet, a first polarizing plate, a glass substrate, an alignment film, liquid crystal, a color filter plate and a second polarizing plate are sequentially arranged above the emitting plate, and emitting lamp beads are arranged on the emitting plate. A lamp bead groove is formed in the bottom side face of the first diffusion sheet, a convex lens is arranged at the upper end in the lamp bead groove, second graphite coatings are laid on the inner side face and the outer side face of the protection plate, and a triangular prism is arranged on the upper side face of the second diffusion sheet. The emitting plate and the first diffusion sheet are both fixedly arranged in the second diffusion sheet, light emitted by the emitting lamp beads is refracted by the convex lens on the first diffusion sheet and then refracted on the triangular prism, on one hand, the uniformity of the light is improved, and on the other hand, the shielding effect of the light is improved; the graphite coating and the graphite flakes prevent light leakage, and the overall shielding effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to a shielding structure, in particular to an optical reflective film with the shielding structure, belonging to the technical field of optical films. Background Art

[0002] The materials of the backlight module are composed of reflective sheet, light guide plate, lower diffuser, prism sheet, upper diffuser, and optical reflective film from bottom to top. The working principle is to atomize the light source by refraction and reflection of the diffusion material, and concentrate the light from a small angle to the front to improve the front brightness. The lower diffuser is mainly used to concentrate the light emitted from the light guide plate and evenly project it onto the prism sheet, while the main function of the upper diffuser is to atomize the light emitted from the prism sheet and transmit the light evenly. At the same time, the upper diffuser can also protect the prism sheet.

[0003] The optical reflective film needs to have shielding performance. The pattern on the light guide plate or the impurities generated during the assembly process of the backlight module may be directly projected onto the LCD or leak out through the corners of the LCD. Therefore, improving the shielding performance of the diffuser as much as possible helps to improve user satisfaction. Usually, in order to improve the shielding ability of the optical reflective film, the traditional method is to use a high-shielding diffuser with micro beads added to the base film of the optical reflective film. However, the high-shielding optical reflective film has the problem of reduced brightness due to the added material, so it is impossible to avoid the problem of light shielding.

[0004] Therefore, there is an urgent need to improve the optical reflective film with a shielding structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an optical reflective film with a shielding structure, in which an emitting plate and a first diffuser are fixedly arranged inside a second diffuser, and light emitted by the emitting lamp bead is refracted by a convex lens on the first diffuser and then refracted again on a prism, thereby improving the uniformity of the light on the one hand and the shielding effect of the light on the other.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] An optical reflective film with a shielding structure comprises a transmitting plate, wherein a first diffuser, a second diffuser, a first polarizing plate, a glass substrate, an alignment film, a liquid crystal, a color filter plate and a second polarizing plate are sequentially arranged above the transmitting plate;

[0008] A plurality of evenly distributed emitting lamp beads are fixedly arranged on the emitting plate, a plurality of evenly distributed lamp bead grooves are opened on the bottom side of the first diffuser, the emitting lamp beads are adapted to the lamp bead grooves, a convex lens is fixedly arranged on the upper end of the plurality of lamp bead grooves, and a light diverging groove is opened on the upper end surface of the first diffuser at the upper end of the convex lens;

[0009] A protective plate is fixedly provided on the bottom end surface of the second diffusion sheet, an emitting plate groove is formed between the protective plates, the bottom end of the protective plate extends to the ground end surface of the emitting plate, the inner and outer side surfaces of the protective plate are fixedly paved with a second graphite coating, and a plurality of evenly distributed prisms are fixedly provided on the upper side surface of the second diffusion sheet.

[0010] Preferably, the number of the emitting lamp beads is the same as the number of the lamp bead grooves, and the height of the emitting lamp beads is consistent with the depth of the lamp bead grooves.

[0011] Preferably, the convex lens is a high-transparency convex lens structure made of PC polycarbonate polymer material.

[0012] Preferably, a first graphite coating is fixedly sprayed on the upper end surface of the first polarizing plate, and the first graphite coating is fixedly arranged on four sides of the upper end surface of the first polarizing plate.

[0013] Preferably, a plurality of filters of different colors are fixedly arranged on the color filter plate, and a plurality of evenly distributed graphite sheets are fixedly sprayed on the outer sides of the filters.

[0014] Preferably, the lengths of the emitting plate and the first diffusion sheet are both smaller than the size of the emitting plate slot, and the first diffusion sheet is tightly connected to the inner side surface of the emitting plate slot.

[0015] Preferably, a plurality of evenly distributed alignment blocks are fixedly disposed on the bottom end surface of the alignment film.

[0016] The utility model has at least the following beneficial effects:

[0017] 1. The emitting plate is fixed at the bottom end of the first diffuser. The emitting plate and the first diffuser are fixed inside the second diffuser. The light emitted by the emitting lamp beads on the emitting plate is refracted by the convex lens on the first diffuser and then refracted again on the prism, which improves the uniformity of the light on the one hand and the shielding effect of the light on the other.

[0018] 2. The inner and outer sides of the protective plate are fixedly paved with a second graphite coating to prevent excess light from the emitting lamp beads from being refracted through the second diffuser to the outside of the device and causing light exposure. The first graphite coating and the graphite sheet prevent light leakage and enhance the shielding effect of the device.

[0019] 3. The convex lens is a high-transparency convex lens structure made of PC polycarbonate polymer material, which improves the strength, transparency, and optical performance of the convex lens and improves the overall refractive efficiency of the convex lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is an exploded view of the utility model;

[0022] Figure 2 It is the front view of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the second diffusion sheet of the utility model;

[0024] Figure 4 This is a three-dimensional diagram of the first polarizing plate of the present invention;

[0025] Figure 5 This is a three-dimensional diagram of the color filter plate of the present utility model.

[0026] In the figure, 1-emitting plate, 101-emitting lamp beads, 2-first diffuser, 201-lamp bead groove, 202-convex lens, 203-light diverging groove, 3-second diffuser, 301-emitting plate groove, 302-prism, 303-protective plate, 4-first polarizing plate, 401-first graphite coating, 5-glass substrate, 6-alignment film, 601-alignment block, 7-liquid crystal, 8-color filter, 801-filter, 802-graphite sheet, 9-second polarizing plate, 10-second graphite coating. DETAILED DESCRIPTION

[0027] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] like Figure 1-Figure 5 As shown, the optical reflective film with a shielding structure provided in this embodiment includes an emitting plate 1, and a first diffuser 2, a second diffuser 3, a first polarizing plate 4, a glass substrate 5, an alignment film 6, a liquid crystal 7, a color filter 8, and a second polarizing plate 9 are sequentially arranged above the emitting plate 1. A plurality of evenly distributed alignment blocks 601 are fixedly arranged on the bottom end surface of the alignment film 6, which has a simple structure, improves the practicability of the device and the effect of shielding light;

[0029] A plurality of evenly distributed emission lamp beads 101 are fixedly arranged on the emission plate 1, a plurality of evenly distributed lamp bead grooves 201 are opened on the bottom side surface of the first diffusion sheet 2, the emission lamp beads 101 are adapted to the lamp bead grooves 201, a convex lens 202 is fixedly arranged at the upper end of the plurality of lamp bead grooves 201, and a light divergence groove 203 is opened on the upper end surface of the first diffusion sheet 2 at the upper end of the convex lens 202, the length of the emission plate 1 and the first diffusion sheet 2 are both smaller than the size of the emission plate groove 301, and the first diffusion sheet 2 is tightly connected to the inner side surface of the emission plate groove 301, a protective plate 303 is fixedly arranged on the bottom end surface of the second diffusion sheet 3, an emission plate groove 301 is formed between the protective plates 303, and the bottom end of the protective plate 303 The upper side of the second diffuser 3 is fixedly provided with a plurality of evenly distributed prisms 302, and the emitting plate 1 is fixed to the bottom end of the first diffuser 2, so that the emitting plate 1 and the first diffuser 2 are fixedly provided inside the second diffuser 3. The light emitted by the emitting lamp bead 101 on the emitting plate 1 is refracted by the convex lens 202 on the first diffuser 2 and then refracted again on the prism 302, which improves the uniformity of the light on the one hand and the shielding effect of the light on the other hand. The inner and outer sides of the protective plate 303 are fixedly provided with a second graphite coating 10, so as to prevent the excess light of the emitting lamp bead 101 from being refracted through the second diffuser 3 to the outside of the device and causing light exposure.

[0030] In this embodiment, if Figure 1 and Figure 2 As shown, the number of emitting lamp beads 101 is the same as the number of lamp bead slots 201, and the height of the emitting lamp beads 101 is consistent with the depth of the lamp bead slots 201, which facilitates installation and improves the shielding effect of the emitting lamp beads.

[0031] In this embodiment, if Figure 2 As shown, the convex lens 202 is a high-transparency convex lens structure made of PC polycarbonate polymer material, which improves the strength, transparency, and optical performance of the convex lens and improves the overall refractive efficiency of the convex lens.

[0032] In this embodiment, if Figure 4 and Figure 5 As shown, the upper end surface of the first polarizing plate 4 is fixedly sprayed with a first graphite coating 401, and the first graphite coating 401 is fixedly arranged on the four sides of the upper end surface of the first polarizing plate 4. A plurality of filters 801 of different colors are fixedly arranged on the color filter 8, and a plurality of evenly distributed graphite sheets 802 are fixedly sprayed on the outer side of the filter 801 to prevent light leakage when the light passes through the first polarizing plate 4 and the color filter 8, thereby improving the shielding effect of the device.

[0033] like Figure 1-Figure 5 As shown, the principle of the optical reflective film with a shielding structure provided in this embodiment is as follows:

[0034] A first diffuser 2, a second diffuser 3, a first polarizing plate 4, a glass substrate 5, an alignment film 6, a liquid crystal 7, a color filter 8 and a second polarizing plate 9 are sequentially arranged above the emitting plate 1. The structure is simple, and the practicality of the device and the light shielding effect are improved. By fixing the emitting plate 1 to the bottom end of the first diffuser 2, the emitting plate 1 and the first diffuser 2 are fixedly arranged inside the second diffuser 3. The light emitted by the emitting lamp bead 101 on the emitting plate 1 is refracted by the convex lens 202 on the first diffuser 2 and then refracted again on the prism 302. On the one hand, the uniformity of the light is improved, and on the other hand, the light shielding effect is improved. The inner and outer sides of the protective plate 303 are fixedly paved with a second graphite coating 10 to prevent the excess light of the emitting lamp bead 101 from being refracted through the second diffuser 3 to the outside of the device to cause light exposure.

[0035] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0036] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0037] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An optical reflective film with a shielding structure, comprising a emitting plate (1), characterized in that: A first diffuser (2), a second diffuser (3), a first polarizing plate (4), a glass substrate (5), an alignment film (6), a liquid crystal (7), a color filter (8) and a second polarizing plate (9) are sequentially arranged above the emitting plate (1); A plurality of evenly distributed emitting lamp beads (101) are fixedly arranged on the emitting plate (1); a plurality of evenly distributed lamp bead grooves (201) are provided on the bottom side surface of the first diffusion sheet (2); the emitting lamp beads (101) are adapted to the lamp bead grooves (201); convex lenses (202) are fixedly arranged at the upper ends of the interiors of the plurality of lamp bead grooves (201); and a light diverging groove (203) is provided at the upper end of the convex lens (202) on the upper end surface of the first diffusion sheet (2); A protective plate (303) is fixedly provided on the bottom end surface of the second diffuser (3), an emitting plate groove (301) is formed between the protective plates (303), the bottom end of the protective plate (303) extends to the ground end surface of the emitting plate (1), the inner side surface and the outer side surface of the protective plate (303) are fixedly paved with a second graphite coating (10), and a plurality of evenly distributed prisms (302) are fixedly provided on the upper side surface of the second diffuser (3).

2. The optical reflective film with a shielding structure according to claim 1, characterized in that: The number of the emitting lamp beads (101) is the same as the number of the lamp bead grooves (201), and the height of the emitting lamp beads (101) is consistent with the depth of the lamp bead grooves (201).

3. The optical reflective film with a shielding structure according to claim 1, characterized in that: The convex lens (202) is a high-transparency convex lens structure made of PC polycarbonate polymer material.

4. The optical reflective film with a shielding structure according to claim 1, characterized in that: The upper end surface of the first polarizing plate (4) is fixedly sprayed with a first graphite coating (401), and the first graphite coating (401) is fixedly arranged on four sides of the upper end surface of the first polarizing plate (4).

5. The optical reflective film with a shielding structure according to claim 1, characterized in that: A plurality of filters (801) of different colors are fixedly arranged on the color filter plate (8), and a plurality of evenly distributed graphite sheets (802) are fixedly sprayed on the outer side of the filter (801).

6. The optical reflective film with a shielding structure according to claim 1, characterized in that: The lengths of the emitting plate (1) and the first diffusion sheet (2) are both smaller than the size of the emitting plate slot (301), and the first diffusion sheet (2) is tightly connected to the inner side surface of the emitting plate slot (301).

7. The optical reflective film with a shielding structure according to claim 1, characterized in that: A plurality of evenly distributed alignment blocks (601) are fixedly arranged on the bottom end surface of the alignment film (6).

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