Viewing angle control diaphragm and display panel

Abstract

The utility model relates to a visual angle control diaphragm and a display panel, comprising a substrate, the substrate is provided with a plurality of light reflection parts, the plurality of light reflection parts are arranged at intervals along a direction X and extend to a direction Y, and the light reflection parts are filled with light reflection materials; the LED lamp has the effect of increasing the brightness.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical technology field especially relates to viewing angle control diaphragm and display panel. BACKGROUND

[0002] In modern society, protecting personal privacy is becoming a very important problem. For this reason, viewing angle control diaphragm is used on notebook computer, mobile and various display screens, and its demand shows the increasing trend. In particular, recently the display screen inside the car is reflected by the front glass, which will hinder the driver's view, so the viewing angle control diaphragm is also often used for car reuse display screen. However, the filling material of the existing louver film and other viewing angle control elements is light absorbing material, and most of the light is absorbed by the light absorbing material, so the brightness is relatively dark. SUMMARY

[0003] The utility model aims at the deficiency of prior art and provides viewing angle control diaphragm.

[0004] The utility model is adopted with the following technical scheme to realize:

[0005] Viewing angle control diaphragm, including base, be provided with light reflection part on the base, a plurality of light reflection part is arranged along the direction X and extends on the direction Y, and the light reflection part is filled with light reflection material.

[0006] Further, the light reflection part extends from the wide mouth end to the narrow mouth end on the direction Y, and the cross section is trapezoidal.

[0007] Further, the light reflection part is asymmetric structure.

[0008] Further, the light reflection material includes aluminum or silver.

[0009] Further, the light reflection part is filled with resin containing light reflection material.

[0010] A display panel, comprising: display screen body and the viewing angle control diaphragm, the viewing angle control diaphragm is located at the light exit side of the display screen body.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model sets up light reflection part on the base, a plurality of light reflection parts is arranged along the direction X and extends on the direction Y, and the light reflection part is filled with light reflection material. The utility model has the effect of increasing brightness. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described below in combination with the drawings:

[0014] Figure 1The whole structure schematic diagram of the present application is shown in the figure.

[0015] Figure 2 The light reflection part structure schematic diagram of the present application is shown in the figure. Figure 1 ;

[0016] Figure 3 The light reflection part structure schematic diagram of the present application is shown in the figure. Figure 2 .

[0017] Figure 4 The light reflection part structure schematic diagram of the present application is shown in the figure.

[0018] Figure 5 The light reflection part structure schematic diagram of the present application is shown in the figure.

[0019] Figure 6 The view angle characteristic curve of the present application is shown in the figure.

[0020] Figure 7 The cross section electron microscope diagram of the present application is shown in the figure.

[0021] Explanation of reference signs:

[0022] 1, base; 2, light reflection part. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above purpose, features and advantages of the present application, the present application will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Embodiment 1

[0025] As shown in the figure, a view angle control film includes a base 1, the base 1 is provided with a light reflection part 2, a plurality of light reflection parts 2 are arranged at intervals along the direction X and extend in the direction Y, and the light reflection part 2 is filled with a light reflection material. Figures 1-3

[0026] ​The light reflection part 2 extends from a wide opening end to a narrow opening end in the direction Y. In the embodiment, the width L of the wide opening end of the light reflection part 2 is 8-12 μm, the width U of the narrow opening end of the light reflection part 2 is 1-8 μm, the distance P between the wide opening end of the light reflection part 2 and the same side wide opening end of the adjacent light reflection part 2 is 30-45 μm, and the height h of the light reflection part 2 is 100-150 μm.

[0027] Further, the light reflection part 2 is asymmetrically structured. In the embodiment, two perpendicular lines are set from the narrow opening end to the wide opening end of the light reflection part 2, the angle θ1 on the right side is 0-3°, and the angle θ2 on the left side is 3-6°.

[0028] The light reflection material includes aluminum or silver, and further, the light reflection material can be any one of aluminum or silver or a combination of both, or other metals or alloys with light reflection, etc.

[0029] The light reflection part 2 can also be filled with resin containing light reflection material. Whether the light reflection part 2 is filled with 100% light reflection material or filled with resin containing light reflection material, the filling method includes deposition, nanoparticles, microparticles or liquid light reflection material filling.

[0030] In the above, the light reflection part is provided on the substrate 1, the bottom wall of the light reflection part 2 reflects part of the light, the side wall of the light reflection part 2 reflects part of the light, and the adjacent two light reflection parts 2 directly pass part of the light, which can improve the brightness.

[0031] The following will compare the viewing angle control film filled with light reflection material (aluminum) with the existing viewing angle control film filled with no reflection material, and the measurement results by EZ Contrast device are compared as shown in Table 1:

[0032] Table 1: Comparison of results of prior art and structure of the present application

[0033] Filler material CB (Ref.) Al resin Brightness (%) 100 108 FWHM (°) 40 / 107 40 / 109 EZ brightness profile See attached Figure 5 See attached Figure 4

[0034] In Table 1, CB is a structure without light reflection material, which is actually filled with adsorbing material carbon, and Al resin is a structure in which the light reflection part is completely filled with light reflection material aluminum. Referring to Table 1 in combination with Figures 4-5 It can be clearly seen that the viewing angle control film filled with aluminum as light reflection material has an increase of 8% in brightness compared with the existing viewing angle control film filled with the conventional structure.

[0035] EZ Contrast is a device for measuring the viewing angle characteristics of a display or optical film. This can analyze at what angle the light is diffused, and how the color or brightness changes with the angle. EZ Contrast displays the measurement results in a chart or image, usually in the following form: Figures 4-5 a brightness distribution diagram,Figure 6 Viewing angle characteristic curve.

[0036] The luminance distribution diagram shows the distribution of light intensity with angle, if the diagram is a uniform circle, it means that the light intensity remains consistent in all directions. Figure 5 In the figure, Center represents the front (0 degree); +35° represents that there is light from 0 to +35 degrees on the upper end of the green; -35° represents that there is light from 0 to -35 degrees on the lower end of the green; and the results show that the observer can see ±35° from the front up and down.

[0037] Figure 6 In the viewing angle characteristic curve, in the figure, the x-axis: observation angle (-60°~+60°); the y-axis: luminance; and the results show that the observer can see ±35° from the front up and down.

[0038] Figure 7 The electron microscope graph of the cross section of the utility model.

[0039] Example 2

[0040] A display panel, characterized by comprising a display screen body and the viewing angle control film sheet as described in example 1, wherein the viewing angle control film sheet is arranged on the light-emitting side of the display screen body.

[0041] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A viewing angle control film characterized by, Comprising: a substrate; light reflecting portions arranged at intervals on the substrate; wherein, a plurality of the light reflecting portions are arranged at intervals along a direction X and extend in a direction Y, and the light reflecting portions are filled with a light reflecting material.

2. The viewing angle control film according to claim 1, wherein: the light reflecting portions extend in the direction Y from a wide opening end to a narrow opening end, and the cross section is trapezoidal.

3. The viewing angle control film according to claim 1, wherein: the light reflecting portions are of an asymmetric structure.

4. The viewing angle control film according to claim 2, wherein: the light reflecting material is metal.

5. The viewing angle control film according to any one of claims 1 to 4, wherein the light reflecting portions are filled with a resin containing the light reflecting material.

6. A display panel, characterized by, Comprising: a display screen body and the viewing angle control film according to any one of claims 1 to 5, the viewing angle control film being arranged on the light exit side of the display screen body.

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