Backlight peep-proof module structure

Abstract

The utility model relates to the technical field of backlight modules, in particular to a backlight peep-proof module structure. The backlight peep-proof module structure comprises a peep-proof film, a polaroid is arranged on one side face of the peep-proof film, the polaroid faces a display screen, and the peep-proof film swings in an inclined mode to enable the included angle between the bottom edge of the peep-proof film and the bottom edge of the polaroid to be 10 degrees. The fringe or cross grain interference of the display module can be effectively reduced, and the display module has the advantage of low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, and in particular to a backlight anti-peeping module structure. Background Art

[0002] Currently, with the development of in-vehicle functions, display modules are designed on the back of the seats for rear passengers to watch videos.

[0003] Since the car is driven outdoors, in order to protect the privacy of passengers, it is necessary to design an anti-peeping film for the backlight of the vehicle display module to prevent peeping. The anti-peeping film on the backlight will interact with other film materials and easily form fringe interference or horizontal interference. The conventional method is to adjust the grating angle of the anti-peeping film, so a special anti-peeping mirror needs to be customized, which not only affects production efficiency, but also increases production costs. Utility Model Content

[0004] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a backlight anti-peeping module structure, which can effectively reduce the display module stripe or horizontal stripe interference by setting the matching direction of the anti-peep mirror and the polarizer, and has the advantage of low cost.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A backlight anti-peeping module structure is provided, comprising:

[0007] An anti-peep film, wherein a polarizer is disposed on one side of the anti-peep film, the polarizer faces the display screen, and the anti-peep film is tilted and swung so that the angle between the bottom edge of the anti-peep film and the bottom edge of the polarizer is 10°.

[0008] In some embodiments, the other side of the privacy film is provided with a brightness enhancement patch, and the brightness enhancement patch includes an upper brightness enhancement patch and a lower brightness enhancement patch.

[0009] The upper brightness enhancement patch is attached to the privacy film, the lower brightness enhancement patch is attached to the upper brightness enhancement patch, the upper brightness enhancement patch is provided with a first prism surface, and the lower brightness enhancement patch is provided with a second prism surface,

[0010] The upper brightness enhancement patch is tilted and swung so that the angle between its first prism surface and the film surface of the privacy film is 150°, and the lower brightness enhancement patch is tilted and swung so that the angle between its second prism surface and the film surface of the privacy film is 60°.

[0011] In some embodiments, the anti-peep film is made of 3M ALCF-A2.

[0012] In some embodiments, the upper gloss enhancing patch and the lower gloss enhancing patch are both made of BEF JPX-GOSFAD 150.

[0013] In some embodiments, a middle iron frame is provided between the anti-peep film and the polarizer, and the polarizer is connected to the anti-peep film through the middle iron frame.

[0014] In some embodiments, the front side of the lower brightness enhancement patch is connected to the upper brightness enhancement patch, and the back side of the lower brightness enhancement patch is provided with a diffusion patch, a light guide plate and a reflection patch from the inside out.

[0015] In some embodiments, the middle iron frame extends along an edge of the privacy film.

[0016] In some embodiments, the front side of the middle iron frame is in contact with the privacy film, and the back side of the middle iron frame is provided with a mounting groove along its frame line, and the mounting groove is embedded with foam glue.

[0017] In some embodiments, the edge of the middle iron frame is bent to form a retaining edge, and the retaining edge and the bottom edge of the middle iron frame constitute the installation groove.

[0018] The beneficial effects of the backlight anti-peeping module structure of the utility model are as follows:

[0019] The module structure of the backlight anti-peeping of the utility model swings the anti-peeping mirror so that the included angle between the bottom edge of the anti-peeping mirror and the bottom edge of the polarizing light is 10°, so that the light radiation of the anti-peeping mirror can be adjusted just to overcome the interference of stripes or horizontal stripes generated by the anti-peeping mirror on the polarizing film. The utility model can overcome the stripes or horizontal stripes without the need for specially customized anti-peeping mirrors, and has the advantage of low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the exploded structure of the backlight anti-peeping module according to a specific implementation method of the utility model.

[0021] Figure 2 It is a schematic diagram of the swing of the privacy film and the polarizer according to a specific embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the swing of the brightness enhancement patch and the anti-peep film according to a specific implementation manner of the utility model.

[0023] Reference numerals:

[0024] 1. Privacy film; 2. Polarizer; 3. Upper brightness enhancement patch; 4. Lower brightness enhancement patch; 5. Middle iron frame; 6. Foam glue; 7. Side retaining edge; 8. Installation slot. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] Example 1

[0029] For the module structure of backlight anti-peeping disclosed in this embodiment, please refer to Figures 1 to 3 ,include

[0030] An anti-peep film 1, a polarizer 2 is provided on one side of the anti-peep film 1, and the polarizer 2 faces the display screen. The anti-peep film 1 is tilted and swung so that the angle between the bottom edge of the anti-peep film 1 and the bottom edge of the polarizer 2 is 10°. By swinging with the bottom edge of the anti-peep film 1 and the bottom edge of the polarizer 2 as a reference, the anti-peep film 1 and the polarizer 2 can be better adjusted.

[0031] The module structure of the backlight anti-peeping mirror swings the anti-peeping mirror so that the angle between the bottom edge of the anti-peeping mirror and the bottom edge of the polarized light is 10°, so that the light radiation of the anti-peeping mirror can be adjusted to just overcome the interference of stripes or horizontal stripes generated by the anti-peeping mirror on the polarizer 2. The utility model can overcome the stripes or horizontal stripes without the need to specially customize a special anti-peeping mirror, and has the advantage of low cost.

[0032] The material of the privacy film 1 is 3M ALCF-A2, which is an existing material and can be purchased online.

[0033] By using the privacy film 1 made of this material, the problem of interference between horizontal lines and lines can be effectively prevented by tilting and swinging the privacy film 1 so that the included angle between the bottom edge of the privacy film 1 and the bottom edge of the polarizer 2 is 10°.

[0034] A middle iron frame 5 is provided between the privacy film 1 and the polarizer 2 , and the polarizer 2 is connected to the privacy film 1 through the middle iron frame 5 .

[0035] The middle iron frame 5 is used to connect the polarizer 2 with the privacy film 1 , and the middle iron frame 5 extends along the edge of the privacy film 1 , so that the privacy film 1 can effectively fit the polarizer 2 on the privacy film 1 , and fit on the privacy film 1 to the maximum extent.

[0036] The front side of the middle iron frame 5 is in contact with the anti-peep film 1 , and the back side of the middle iron frame 5 is provided with a mounting groove 8 along its frame line, and the mounting groove 8 is embedded with a foam glue 6 .

[0037] The middle iron frame 5 is provided with a mounting groove 8 so that the foam glue 6 can be embedded therein. The foam glue 6 is used to fix the polarizer 2 .

[0038] The edge of the middle iron frame 5 is bent to form a retaining edge 7 , and the retaining edge 7 and the bottom edge of the middle iron frame 5 form the installation groove 8 .

[0039] The mounting groove 8 can be effectively formed by folding or bending the edge of the middle iron frame 5 , so that the mounting groove 8 can be formed quickly.

[0040] Example 2

[0041] For the module structure of backlight anti-peeping disclosed in this embodiment, please refer to Figures 1 to 3 ,include

[0042] The privacy film 1 has a polarizing film 2 on one side thereof, the polarizing film 2 faces the display screen, and the privacy film 1 is tilted and swung so that the angle between the bottom edge of the privacy film 1 and the bottom edge of the polarizing film 2 is 10°.

[0043] The module structure of the backlight anti-peeping mirror swings the anti-peeping mirror so that the angle between the bottom edge of the anti-peeping mirror and the bottom edge of the polarized light is 10°, so that the light radiation of the anti-peeping mirror can be adjusted to just overcome the interference of stripes or horizontal stripes generated by the anti-peeping mirror on the polarizer 2. The utility model can overcome the stripes or horizontal stripes without the need to specially customize a special anti-peeping mirror, and has the advantage of low cost.

[0044] The material of the privacy film 1 is 3M ALCF-A2, which is an existing material and can be purchased online.

[0045] By using the privacy film 1 made of this material, the problem of interference between horizontal lines and lines can be effectively prevented by tilting and swinging the privacy film 1 so that the included angle between the bottom edge of the privacy film 1 and the bottom edge of the polarizer 2 is 10°.

[0046] A middle iron frame 5 is provided between the privacy film 1 and the polarizer 2 , and the polarizer 2 is connected to the privacy film 1 through the middle iron frame 5 .

[0047] The middle iron frame 5 is used to connect the polarizer 2 with the privacy film 1 , and the middle iron frame 5 extends along the edge of the privacy film 1 , so that the privacy film 1 can effectively fit the polarizer 2 on the privacy film 1 , and fit on the privacy film 1 to the maximum extent.

[0048] The front side of the middle iron frame 5 is in contact with the anti-peep film 1 , and the back side of the middle iron frame 5 is provided with a mounting groove 8 along its frame line, and the mounting groove 8 is embedded with a foam glue 6 .

[0049] The middle iron frame 5 is provided with a mounting groove 8 so that the foam glue 6 can be embedded therein. The foam glue 6 is used to fix the polarizer 2 .

[0050] The edge of the middle iron frame 5 is bent to form a retaining edge 7 , and the retaining edge 7 and the bottom edge of the middle iron frame 5 form the installation groove 8 .

[0051] The mounting groove 8 can be effectively formed by folding or bending the edge of the middle iron frame 5 , so that the mounting groove 8 can be formed quickly.

[0052] To further improve the grain interference problem, please refer to Figure 3 , this embodiment also discloses:

[0053] The other side of the privacy film 1 is provided with a brightness enhancement patch, which is used to increase the brightness. The brightness enhancement patch includes an upper brightness enhancement patch 3 and a lower brightness enhancement patch 4.

[0054] The upper brightness enhancement patch 3 is attached to the privacy film 1, and the lower brightness enhancement patch 4 is attached to the upper brightness enhancement patch 3. The upper brightness enhancement patch 3 is provided with a first prism surface, and the lower brightness enhancement patch 4 is provided with a second prism surface.

[0055] The upper brightness enhancement patch 3 is tilted and swung so that the angle between its first prism surface and the film surface of the privacy film 1 is 150°, and the lower brightness enhancement patch 4 is tilted and swung so that the angle between its second prism surface and the film surface of the privacy film 1 is 60°.

[0056] Since the brightening patch is also used to increase the brightness, in fact, the brightening patch will also have horizontal interference, so the swing of the upper brightening patch 3 and the lower brightening patch 4 is adjusted, such as Figure 3 As shown, the upper brightness enhancement patch 3 is tilted and swung so that the angle between its first prism surface and the film surface of the anti-peep film 1 is 150°, and the lower brightness enhancement patch 4 is tilted and swung so that the angle between its second prism surface and the film surface of the anti-peep film 1 is 60°, thereby overcoming the problem of horizontal stripe interference.

[0057] The front side of the lower brightness enhancement patch 4 is connected to the upper brightness enhancement patch 3 , and the back side of the lower brightness enhancement patch 4 is provided with a diffusion patch, a light guide plate and a reflection patch from the inside to the outside.

[0058] The display module can be effectively formed by arranging the diffusion patch, the light guide plate and the reflective patch.

[0059] The material of the upper brightening patch 3 and the lower brightening patch 4 are both BEF JPX-GOS FAD 150. Brightening patches of this type of material are matched with the swing angle to overcome the problem of horizontal stripe interference.

[0060] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A backlight anti-peep module structure, characterized in that: include An anti-peep film, wherein a polarizer is disposed on one side of the anti-peep film, the polarizer faces the display screen, and the anti-peep film is tilted and swung so that the angle between the bottom edge of the anti-peep film and the bottom edge of the polarizer is 10°.

2. The module structure of backlight privacy protection according to claim 1, characterized in that: The other side of the privacy film is provided with a brightness enhancement patch, and the brightness enhancement patch includes an upper brightness enhancement patch and a lower brightness enhancement patch. The upper brightness enhancement patch is attached to the privacy film, the lower brightness enhancement patch is attached to the upper brightness enhancement patch, the upper brightness enhancement patch is provided with a first prism surface, and the lower brightness enhancement patch is provided with a second prism surface, The upper brightness enhancement patch is tilted and swung so that the angle between its first prism surface and the film surface of the privacy film is 150°, and the lower brightness enhancement patch is tilted and swung so that the angle between its second prism surface and the film surface of the privacy film is 60°.

3. The module structure of backlight privacy protection according to claim 1, characterized in that: The material of the anti-peep film is 3MALCF-A2.

4. The module structure of backlight privacy protection according to claim 2, characterized in that: The material of the upper gloss-enhancing patch and the lower gloss-enhancing patch is BEF JPX-GOS FAD 150.

5. The module structure of backlight privacy protection according to claim 1, characterized in that: A middle iron frame is provided between the anti-peep film and the polarizer, and the polarizer is connected to the anti-peep film through the middle iron frame.

6. The module structure of backlight privacy protection according to claim 2, characterized in that: The front side of the lower brightness enhancement patch is connected to the upper brightness enhancement patch, and the back side of the lower brightness enhancement patch is provided with a diffusion patch, a light guide plate and a reflection patch from the inside to the outside.

7. The module structure for backlight privacy protection according to claim 5, characterized in that: The middle iron frame extends along the edge of the anti-peep film.

8. The module structure of backlight privacy protection according to claim 7, characterized in that: The front side of the middle iron frame is in contact with the anti-peep film, and the back side of the middle iron frame is provided with an installation groove along its frame line, and the installation groove is embedded with foam glue.

9. The module structure of backlight privacy protection according to claim 8, characterized in that: The edge of the middle iron frame is bent to form a retaining edge, and the retaining edge and the bottom edge of the middle iron frame constitute the installation groove.

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