Viewing angle control diaphragm and display panel

Abstract

The utility model relates to a visual angle control diaphragm and a display panel. The visual angle control diaphragm comprises a light-transmitting part; the plurality of light reflecting parts are arranged on the light transmitting part at intervals; the light reflecting parts are sunken in the surface of the light transmitting part and are of a concave cavity wall surface structure; the light reflecting parts are arranged on the light transmitting part at intervals, each light reflecting part is of a cavity wall face structure with a certain thickness, part of light rays are perpendicularly emitted from the positions between the adjacent light reflecting parts, part of the light rays are reflected and emitted from the slope faces of the light reflecting parts, and part of the light rays enter the inner walls of the light reflecting parts and are reflected back; the utility model has the effect of improving brightness.

Description

Technical Field

[0001] This utility model relates to the field of optical technology, and in particular to viewing angle control diaphragms and display panels. Background Technology

[0002] In modern society, protecting personal privacy is becoming increasingly important. Consequently, viewing angle control films are being used in various displays, including laptops and mobile devices, and the demand for them is steadily growing. In particular, the reflections from windshields in car interiors can obstruct the driver's view, leading to the widespread use of viewing angle control films in automotive displays. However, existing viewing angle control films consist of a light-transmitting portion and a light-absorbing portion. The light-absorbing portion is primarily composed of light-absorbing materials such as carbon black, which reduces the viewing angle by blocking light. This presents several problems: 1. Due to the difficulty and time required for manufacturing, issues such as poor cleanliness and appearance may arise; 2. The light-absorbing materials in the light-absorbing portion block light, reducing luminous efficiency. Therefore, existing viewing angle control films have limitations in terms of brightness improvement. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a viewing angle control diaphragm and display panel.

[0004] This utility model is achieved using the following technical solution:

[0005] A viewing angle control diaphragm, comprising:

[0006] Light-transmitting part;

[0007] Light reflecting portions, wherein a plurality of light reflecting portions are spaced apart on the light transmitting portion: wherein:

[0008] The light-reflecting part is recessed into the surface of the light-transmitting part, forming a concave cavity wall structure.

[0009] Preferably, the light-reflecting part includes an upper bottom surface, a side surface, and a lower bottom edge, forming a structure that is narrower at the top and wider at the bottom.

[0010] Preferably, the cross-section of the light-reflecting part has a trapezoidal structure.

[0011] Preferably, the wall thickness of the light-reflecting part is 0.04 to 1 micrometer.

[0012] Preferred options also include:

[0013] Base;

[0014] The light-transmitting portion is disposed on the substrate.

[0015] Light reflecting portions, wherein a plurality of light reflecting portions are spaced apart on the light transmitting portion: wherein:

[0016] The light-reflecting part is recessed into the surface of the light-transmitting part, forming a concave cavity wall structure.

[0017] A display panel includes: a display body and a viewing angle control diaphragm as described above, the viewing angle control diaphragm being disposed on the light-emitting side of the display body.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This invention arranges several light-reflecting parts at intervals on the light-transmitting part, and the light-reflecting parts are concave cavity wall structures with a certain thickness. Some light rays are emitted vertically between adjacent light-reflecting parts, some light rays are reflected from the slope of the light-reflecting parts, and some light rays are incident on the inner wall of the light-reflecting parts and reflected back. This invention has the effect of improving brightness. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a beam distribution diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the preparation method of this utility model.

[0023] In the figure: 1. Substrate; 2. Transmitting part; 3. Reflecting part; 4. Substrate; 31. Left slope; 32. Right slope. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise explicitly specified and limited, the embodiments and features described in the embodiments of this application can be combined with each other. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figure 1-2 As shown, a viewing angle control diaphragm includes:

[0027] Light-transmitting part 2;

[0028] Light reflecting parts 3, a plurality of light reflecting parts 3 are spaced apart on the light transmitting part 2: wherein:

[0029] The light-reflecting part 3 is recessed into the surface of the light-transmitting part 2, forming a concave cavity wall structure.

[0030] Furthermore, the light-reflecting part 3 includes an upper bottom surface, a side surface, and a lower bottom edge, forming a structure that is narrower at the top and wider at the bottom. Even further, the cross-section of the light-reflecting part 3 has a trapezoidal structure.

[0031] The wall thickness of the light-reflecting part 3 is 0.04 to 1 micrometer.

[0032] The aforementioned light-transmitting part 2 includes polycarbonate, acrylate, polyethylene glycol, etc. That is, the light-transmitting part 2 is composed of any one or more combinations of polycarbonate, acrylate, polyethylene glycol, etc., or it can be composed of materials with light-transmitting function.

[0033] The aforementioned light-transmitting portion 2 can also be formed of a material that allows visible light to pass through.

[0034] The light-reflecting part 3 includes aluminum, silver, aluminum-silver alloy, silver-lead-copper alloy, etc. That is, the light-transmitting material is composed of any one or more combinations of aluminum, silver, aluminum-silver alloy, silver-lead-copper alloy, etc., or it can be composed of other materials with light-reflecting functions, thereby avoiding the problem that the light-absorbing material in the light-absorbing part of the prior art blocks the light and leads to a reduction in light efficiency.

[0035] In addition to the above, it also includes:

[0036] Base 1;

[0037] Light-transmitting part 2 is disposed on substrate 1.

[0038] Light reflecting parts 3, a plurality of light reflecting parts 3 are spaced apart on the light transmitting part 2: wherein:

[0039] The light-reflecting part 3 is recessed into the surface of the light-transmitting part 2, forming a concave cavity wall structure.

[0040] The aforementioned substrate 1 includes acrylic film, polyester film, polyurethane film, etc. That is, substrate 1 can be made of any one of acrylic film, polyester film, polyurethane film, etc., or it can be composed of other materials with substrate film functions.

[0041] Based on the above, a method for preparing a viewing angle control diaphragm is provided, comprising the following steps:

[0042] like Figure 3As shown, a light-transmitting portion 2 is provided on the substrate 4; a light-reflecting material is vertically deposited on the light-transmitting portion 2 using a deposition process, and then a polishing process is used to obtain a polished surface light-reflecting portion 3; at this time, in order to prevent the deposition of reflective material between the light-reflecting portions 3 while allowing light to pass through, a shielding material can be installed between the light-reflecting portions 3 to prevent deposition, as shown in the figure; in order to allow light to pass through between the light-reflecting portions 3 after the light-reflecting material deposition process, the light-shielding film between the light-reflecting portions 3 needs to be removed by an etching process; by attaching the substrate 1 to the opposite side of the substrate 4, a viewing angle control film is finally obtained; thereby avoiding the problems of poor cleanliness and poor appearance that may occur in the prior art due to the difficulty and time of the manufacturing process.

[0043] Example 2

[0044] like Figure 1-3 As shown, a display panel includes:

[0045] The display screen body and the viewing angle control diaphragm as described above, wherein the viewing angle control diaphragm is disposed on the light-emitting side of the display screen body.

[0046] Based on the above, from the base 1 to the vertical direction, the first ray L1 represents light entering from the bottom of the right slope 32 near the light reflecting part 3 and exiting towards the top of the left slope 31 near the adjacent light reflecting part 3, with an angle θ2 between it and the vertical plane of the base 1. Correspondingly, the second ray L2 represents light entering from the bottom of the left slope 31 near the light reflecting part 3 and exiting towards the top of the right slope 32 near the adjacent light reflecting part 3, with an angle θ1 between it and the vertical plane of the base 1. The third ray L3 represents light entering from the adjacent light reflecting part 3. The light rays are emitted perpendicularly between the light-transmitting parts 3, meaning that L1, L2, and L3 all indicate that the light is transmitted through the light-transmitting part 2 and does not strike the light-reflecting part 3; the fourth ray L4 indicates that the light is transmitted through the light-transmitting part and strikes the light-reflecting part 3 for reflection; the fifth ray L5 indicates that the light is incident on the inside of the light-reflecting part 3 and reflected back; this viewing angle control diaphragm adjusts the viewing angle by transmitting light rays incident at a certain angle or changing the incident angle of light rays incident at a certain angle, thereby solving problems such as limited brightness increase and achieving a brightness enhancement effect.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A viewing angle control diaphragm, characterized in that, include: Light-transmitting part; Light reflecting portions, wherein a plurality of light reflecting portions are spaced apart on the light transmitting portion: wherein: The light-reflecting part is recessed into the surface of the light-transmitting part, forming a concave cavity wall structure.

2. The viewing angle control diaphragm as described in claim 1, characterized in that, The light-reflecting part includes an upper bottom surface, a side surface, and a lower bottom edge, forming a structure that is narrow at the top and wide at the bottom.

3. The viewing angle control diaphragm as described in claim 2, characterized in that, The cross-section of the light reflector is trapezoidal.

4. The viewing angle control diaphragm as described in claim 3, characterized in that, The wall thickness of the light-reflecting part is 0.04 to 1 micrometer.

5. The viewing angle control diaphragm as described in any one of claims 1-4, characterized in that, Also includes: Base; The light-transmitting portion is disposed on the substrate. Light reflecting portions, wherein a plurality of light reflecting portions are spaced apart on the light transmitting portion: wherein: The light-reflecting part is recessed into the surface of the light-transmitting part, forming a concave cavity wall structure.

6. A display panel, characterized in that, include: The display body and the viewing angle control diaphragm as described in claim 5, wherein the viewing angle control diaphragm is disposed on the light-emitting side of the display body.

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