Light guide plate structure with indication mark

Abstract

The utility model discloses a light guide plate structure with indication marks, which is characterized by comprising a circuit board component and a light insulation piece arranged on the same side with a light source on the circuit board component, and the light insulation piece is provided with a light insulation groove for dividing each light source with independent electrical logic; an exterior trimming part is arranged on the side, away from the circuit board component, of the light insulation part. The two sides of the light insulation piece make contact with the circuit board component and the exterior trimming part respectively. An inner light absorption layer and an outer light absorption layer are locally or integrally arranged outside the marked area; a thin-wall area with the thickness not larger than 2 mm is arranged between every two adjacent marks on the exterior trimming part, or the exterior trimming part is integrally made of a thin plate with the thickness not larger than 2 mm. According to the technical scheme, light path isolation between marks can be achieved, the defects that a traditional implementation mode is complex in process, low in efficiency and prone to cracking are overcome, and meanwhile a product applying the technical scheme is not limited by the appearance and can be a plane or any other curved surface.

Description

Technical Field

[0001] The present application relates to a light guide plate structure with an indicator mark, which is particularly used in occasions requiring high reliability, such as aircraft, ships, and armored vehicles, and belongs to the field of high-reliability human-computer interaction technology. Background Art

[0002] In the defense field such as aircraft, ships, and armored vehicles, light guide plates are a common human-computer interaction interface. In actual applications, in addition to the basic backlight, there are often many application requirements for integrated indicator marks on the light guide plate. The electrical logic of these indicator marks is independent of each other, requiring each indicator mark to be able to light up independently and not affect the lighting of surrounding marks. No obvious light crosstalk is allowed between independent marks. The traditional method is to use inlaid inserts to achieve optical path isolation, but this method has many disadvantages such as cumbersome and complex processes, low efficiency, and easy cracking of finished products. At the same time, it cannot meet more complex application scenarios such as special shapes and curved surfaces. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a light guide plate structure with indicator marks to solve the problems of complex process, low efficiency and easy cracking in traditional implementation methods.

[0004] In order to solve the above technical problems, the technical solution of the present application is to provide a light guide plate structure with an indicator mark, which is characterized in that it includes a circuit board component composed of a circuit board and a light source arranged thereon; a light isolation member is arranged on the same side of the circuit board component as the light source, and a light isolation groove is arranged on the light isolation member according to the need for light path isolation, and the light isolation groove separates the light sources with independent electrical logic so that the light sources do not bleed into each other; an exterior decoration is arranged on the side of the light isolation member away from the circuit board component; the two sides of the light isolation member are in contact with the circuit board component and the exterior decoration respectively; a thin-walled area with a thickness of no more than 2 mm or an entire exterior decoration is arranged between adjacent marks on the exterior decoration A thin plate with a thickness of no more than 2 mm is used to reduce the influence of other light sources around the mark; an inner light absorption layer is provided on the inner surface of the exterior trim, and an outer light absorption layer and a mark are provided on the outer surface of the exterior trim. The mark is a specific character or graphic, which provides the user with working information of the back-end product after the corresponding light source is lit; the inner light absorption layer and the outer light absorption layer have but are not limited to the following two functions: one is to block the light outside the mark area to avoid light leakage; the other is to absorb and attenuate the stray light around the mark to reduce the mutual influence of the light and dark of each mark; the inner light absorption layer and the outer light absorption layer are arranged in whole or in part in the unmarked area on the exterior trim.

[0005] Preferably, the exterior decoration part is a plane or a curved surface. If the exterior decoration part is a curved surface, the circuit board adopts a flexible printed circuit board.

[0006] Preferably, a base is provided on the side of the circuit board component away from the light source, so that the product has better strength and independence.

[0007] The present application provides a light guide plate structure with indicator marks, which can achieve optical path isolation between the marks, solving the drawbacks of the traditional implementation method, such as complex process, low efficiency and easy cracking. At the same time, the product using the present technical solution is not restricted by the shape and can be a plane or other arbitrary curved surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of an explosion of the light guide plate provided in the embodiment.

[0009] Figure 2 It is a schematic diagram of a side explosion of a light guide plate provided in an embodiment.

[0010] Figure 3 It is a schematic diagram of the partial assembly of the light guide plate provided in the embodiment. DETAILED DESCRIPTION

[0011] In order to make the present application more clear and understandable, a preferred embodiment is described in detail as follows with reference to the accompanying drawings.

[0012] This embodiment provides a light guide plate structure with an indicator mark, combined with Figure 1 , Figure 2 , Figure 3 ; It is characterized in that the circuit board component 2 is composed of a circuit board 21 and multiple light sources 22 arranged thereon; a light isolation member 3 is arranged on the same side of the circuit board component 2 as the light source 22, and a light isolation groove 31 is arranged on the light isolation member 3 for each group of independent light sources 22, so that the light sources 22 with independent electrical logic do not cross each other; an exterior decoration member 4 is arranged on the side of the light isolation member 3 away from the circuit board component 2; the two sides of the light isolation member 3 are in contact with the circuit board component 2 and the exterior decoration member 4 respectively; multiple marks 41 are arranged on the exterior decoration member 4, and the on and off of each mark are independent of each other, and the inner surface of the exterior decoration member 4 is sprayed with light absorbing paint outside the projection area of ​​the mark 41 to form an inner light absorbing layer 42; the outer surface of the exterior decoration member 4 is sprayed with light absorbing paint outside the area of ​​the mark 41 to form an outer light absorbing layer 43. A thin-walled area 44 with a thickness of 0.8 mm is arranged between adjacent marks 41 on the exterior decoration member 4.

[0013] In this example, the exterior decoration part 4 is an arc surface, and the circuit board 21 is a flexible printed board; a base 1 is provided on the side of the circuit board component 2 away from the light source 22, so that the product has good strength.

[0014] Thanks to the structural design of the light-isolating groove 31, the internal light-absorbing layer 42, the external light-absorbing layer 43 and other structures on the light-isolating member 3 in the example, the light isolation between different marks is well achieved, so that each mark can be displayed accurately and clearly, the light guide plate process is optimized, the production efficiency is greatly improved, and the integrated structure of the exterior trim also avoids the risk of cracking.

Claims

1. A light guide plate structure with an indicator mark, characterized in that: The invention comprises a circuit board component (2) composed of a circuit board (21) and a light source (22) arranged thereon; a light isolation member (3) is arranged on the same side of the circuit board component (2) as the light source (22); a light isolation groove (31) is arranged on the light isolation member (3); the light isolation groove (31) separates the light sources (22) with independent electrical logics so that the light sources (22) of each group do not cross each other; an exterior decoration member (4) is arranged on the side of the light isolation member (3) away from the circuit board component (2); and the two sides of the light isolation member (3) are respectively connected to the circuit board component (2) and the exterior decoration member (4). ) contact; an inner light absorbing layer (42) is provided on the inner surface of the exterior decoration (4); an outer light absorbing layer (43) and a mark (41) are provided on the outer surface of the exterior decoration (4); the mark (41) is a specific character or graphic; the inner light absorbing layer (42) and the outer light absorbing layer (43) are provided in whole or in part in an area outside the mark (41) on the exterior decoration (4); a thin-walled area (44) with a thickness of no more than 2 mm is provided between adjacent marks (41) on the exterior decoration (4), or the exterior decoration as a whole is made of a thin plate with a thickness of no more than 2 mm.

2. A light guide plate structure with an indicator mark according to claim 1, characterized in that: The exterior decoration part (4) is a flat surface or a curved surface. If the exterior decoration part (4) is a curved surface, the circuit board (21) adopts a flexible printed board.

3. The light guide plate structure with an indicator mark according to claim 1, characterized in that: A base (1) may be provided on a side of the circuit board component (2) away from the light source (22), so that the product has better strength and independence.

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