Device with low reverse emission and low light leakage

Abstract

The utility model discloses a device with low reverse emission and low light leakage, which comprises a flexible printed circuit board, a light-emitting screen is arranged on the inner side of the flexible printed circuit board, a plurality of circuit board arc-shaped fastening belts are arranged on the outer side of the flexible printed circuit board, and the circuit board arc-shaped fastening belts penetrate through the rear side of the light-emitting screen. And protective films are arranged on the surface of the flexible printed circuit board and the rear side of the light-emitting screen. According to the utility model, the circuit board arc-shaped fastening belt is arranged, the circuit board arc-shaped fastening belt needs to bypass the light-emitting screen, and the circuit board arc-shaped fastening belt at the back side is fixed on the backlight of the light-emitting screen, so that the counter force of the circuit board arc-shaped fastening belt is reduced, and the possibility of light leakage and interference with a shell caused by the floating of the fastening belt due to the counter force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low light leakage of display screens, in particular to a device with low reflection and low light leakage properties. Background Art

[0002] Light leakage is when the LCD screen and the frame are not tightly fitted, causing the light from the lamp to directly leak out. Light leakage is a common problem in LCD monitors. In a sense, LCD monitors are basically unable to avoid light leakage, it is just a matter of degree. Low-end monitors may have more obvious light leakage, while high-end monitors rarely have obvious light leakage.

[0003] In the prior art, during the use of the display, a bending reaction force will be generated in the arc-shaped fastening belt of the circuit board, causing the arc-shaped fastening belt of the circuit board to float, as shown in the attached manual. Figure 3 As shown in the conventional flexible printed circuit board 5 structure, the LED and the light guide plate float and separate, causing the problem of light leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a device with low reflection and low light leakage. The arc-shaped fastening belt of the circuit board needs to bypass the light-emitting screen, and the arc-shaped fastening belt of the circuit board on the back side will be fixed on the backlight of the light-emitting screen, thereby reducing the reaction force of the arc-shaped fastening belt of the circuit board and reducing the possibility of the fastening belt floating due to the reaction force, thereby causing light leakage and interference with the casing.

[0005] To achieve the above-mentioned purpose, a device with low reflection and low light leakage is provided, comprising: a flexible printed circuit board, a light-emitting screen is arranged on the inner side of the flexible printed circuit board, a plurality of circuit board arc-shaped fastening belts are arranged on the outer side of the flexible printed circuit board, and the circuit board arc-shaped fastening belts pass through the rear side of the light-emitting screen, and a protective film is arranged on the surface of the flexible printed circuit board and the rear side of the light-emitting screen.

[0006] According to the device with low reflectivity and low light leakage, the arc-shaped circuit board fastening belt is U-shaped.

[0007] According to the device with low reflectivity and low light leakage, the number of the arc-shaped circuit board fastening belts is several.

[0008] The above scheme has the following beneficial effects:

[0009] The utility model is provided with an arc-shaped fastening belt for a circuit board. Since the arc-shaped fastening belt for the circuit board needs to bypass the light-emitting screen and the arc-shaped fastening belt for the circuit board on the back side is fixed on the backlight of the light-emitting screen, the reaction force of the arc-shaped fastening belt for the circuit board is reduced, and the possibility of the fastening belt floating due to the reaction force, thereby causing light leakage and interference with the casing, is reduced.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0012] Figure 1 It is a partial front view of a light-emitting screen and a flexible printed circuit board of a device with low reflection and low light leakage of the utility model;

[0013] Figure 2 It is a side cross-sectional view of a circuit board arc-shaped fastening belt of a device with low reflection and low light leakage of the utility model;

[0014] Figure 3 This is a three-dimensional diagram of a traditional flexible printed circuit board of a device with low reflection and low light leakage of the utility model.

[0015] Legend:

[0016] 1. Flexible printed circuit board; 2. Light-emitting screen; 3. Circuit board arc fastening belt; 4. Protective film; 5. Traditional flexible printed circuit board. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Reference Figure 1-3 The utility model embodiment is a device with low reflection and low light leakage, which includes: a flexible printed circuit board 1, a light-emitting screen 2 is arranged on the inner side of the flexible printed circuit board 1, and a light-emitting effect is provided by the light-emitting screen 2, and a plurality of circuit board arc-shaped fastening belts 3 are arranged on the outer side of the flexible printed circuit board 1. The structure of the circuit board arc-shaped fastening belt 3 bypasses the back side back plate of the light-emitting screen 2 to improve the firmness of use, reduce the problem of light leakage and influence on use caused by floating, and the circuit board arc-shaped fastening belt 3 passes through the back side of the light-emitting screen 2, and the surface of the flexible printed circuit board 1 and the back side of the light-emitting screen 2 are provided with a protective film 4, which can protect the light-emitting screen 2 and the flexible printed circuit board 1, and the circuit board arc-shaped fastening belt 3 is U-shaped, and the number of the circuit board arc-shaped fastening belts 3 is several.

[0020] Working principle: When in use, the circuit board arc-shaped fastening belt 3 is passed around the rear back plate of the light-emitting screen 2 and formed into a U-shaped structure to increase the firmness of use and prevent the light-emitting screen 2 from floating up to cause light leakage and affect use.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device with low reflectivity and low light leakage, comprising: A flexible printed circuit board (1), characterized in that a light-emitting screen (2) is arranged on the inner side of the flexible printed circuit board (1), a plurality of circuit board arc-shaped fastening belts (3) are arranged on the outer side of the flexible printed circuit board (1), and the circuit board arc-shaped fastening belts (3) pass through the rear side of the light-emitting screen (2), and a protective film (4) is arranged on the surface of the flexible printed circuit board (1) and the rear side of the light-emitting screen (2).

2. The device with low reflection and low light leakage according to claim 1, characterized in that: The circuit board arc-shaped fastening belt (3) is U-shaped.

3. The device with low reflection and low light leakage according to claim 1, characterized in that: The number of the circuit board arc-shaped fastening belts (3) is multiple.

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