CN219122450U

CN219122450U - Direct type diffusion plate structure without dark area

Info

Publication number: CN219122450U
Application number: CN202223468577.4U
Authority: CN
Inventors: 李飞; 李琳; 陈雪莲; 林金锡; 林金汉
Original assignee: Changzhou Almaden Co Ltd
Current assignee: Changzhou Almaden Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-06-02
Anticipated expiration: 2032-12-23

Abstract

The utility model belongs to the technical field of direct type backlight modules, and particularly relates to a direct type diffusion plate structure without a dark area, which comprises a diffusion plate, wherein the diffusion plate comprises a glass substrate, an upper diffusion ink layer and a lower diffusion ink layer, the upper diffusion ink layer is arranged on the upper surface of the glass substrate, the lower diffusion ink layer is arranged on the lower surface of the glass substrate, an LED lamp group is arranged below the glass substrate, a support frame is arranged on the periphery of the bottom of the glass substrate, the support frame encloses the LED lamp group, and hollowed-out mesh points are arranged on the periphery of the lower diffusion ink layer. The direct type diffusion plate structure without the dark area realizes that light directly passes through the glass substrate with the hollowed-out lattice points, improves the light transmittance of unit area, namely improves brightness, effectively overcomes the defect that dark areas exist around the diffusion plate, has ingenious structural design, is convenient to realize, has lower cost, and is suitable for a direct type backlight module without a frame or a narrow frame.

Description

Direct type diffusion plate structure without dark area

Technical Field

The utility model belongs to the technical field of direct type backlight modules, and particularly relates to a direct type diffusion plate structure without a dark area.

Background

The diffusion plate is mainly used for display illumination, is mainly used for direct type backlight modules, and generally comprises a glass substrate and diffusion films adhered to two surfaces of the glass substrate. As shown in fig. 1, in the conventional direct type backlight module, the LED light source 100 of the direct type backlight module is mounted on the bottom plate 200 parallel to the screen, light is directly emitted from the bottom, the diffusion plate 300 is positioned above the LED light source 100, the support frame 400 is disposed around the diffusion plate 300, and due to the limited light emitting angle of the LED light source 100 of the direct type backlight module and the shielding of the support frame 400, a dark area 500 exists around the diffusion plate 300. The existing direct type backlight module pursues attractive design of no frame or narrow frame, and a spliced screen display, particularly a spliced screen with ultra-narrow splice, requires that the backlight module must be made into the ultra-narrow frame or no frame, so that the problem that dark areas exist around a diffusion plate is solved, and meanwhile, the direct type backlight module is ensured to have important significance in no frame or narrow frame.

Disclosure of Invention

In order to solve the problem that dark areas exist around a diffusion plate in the prior art, the utility model provides a direct type diffusion plate structure without dark areas.

In order to solve the technical problems, the utility model adopts the following technical scheme that the direct type diffusion plate structure without a dark area comprises a diffusion plate, wherein the diffusion plate comprises a glass substrate, an upper diffusion ink layer and a lower diffusion ink layer, the upper diffusion ink layer is arranged on the upper surface of the glass substrate, the lower diffusion ink layer is arranged on the lower surface of the glass substrate, an LED lamp group is arranged below the glass substrate, a support frame is arranged on the periphery of the bottom of the glass substrate, the support frame encloses the LED lamp group, and hollowed-out mesh points are arranged on the periphery of the lower diffusion ink layer.

Further, the hollowed-out rate of the hollowed-out net points gradually increases from the inner edge to the outer edge of the support frame. The LED light directly passes through the glass substrate with the hollowed-out lattice points, so that the light transmittance of unit area is improved, namely the brightness is improved, the effect that the hollowed-out lattice points reach uniform light is also ensured, and the brightness is ensured to be uniform.

Further, the holes of the hollowed-out net points are round. The manufacture of the hollowed-out net points is convenient.

Further, the diameters of the holes of the hollowed-out net points gradually become larger from the inner edge to the outer edge of the support frame; or the number of the holes of the hollowed-out net points gradually increases from the inner edge to the outer edge of the support frame. The manufacture of the hollowed-out net points is convenient.

The beneficial effects are that: according to the direct type diffusion plate structure without the dark area, light rays of the LED lamp group are emitted from the bottom, the light rays are diffused through the diffusion effect of the diffusion plate, soft and uniform light emitting is achieved, meanwhile, the light rays directly penetrate through the glass substrate with hollowed-out lattice points, the light transmittance of unit area is improved, namely the brightness is improved, the defect that the dark area exists around the diffusion plate is effectively overcome, the direct type diffusion plate without the dark area is ingenious in structural design and convenient to achieve, the direct type diffusion plate is low in cost, and is suitable for direct type backlight modules without frames or with narrow frames, and the problem that the dark area exists around the diffusion plate is well solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a direct type backlight module of the background art;

FIG. 2 is a schematic cross-sectional view of a direct-type diffusion plate structure without a dark area according to the present utility model;

FIG. 3 is a schematic top view of a direct type diffusion plate structure without dark areas according to the present utility model;

FIG. 4 is an enlarged partial schematic view of FIG. 3A;

in the figure: the background technology is as follows: 100. the LED light source comprises an LED light source 200, a bottom plate 300, a diffusion plate 400, a support frame 500 and a dark area; the application comprises the following steps: 1. the LED lamp comprises a diffusion plate, 11, a glass substrate, 12, an upper diffusion ink layer, 121, hollowed-out dots, 13, a lower diffusion ink layer, 2, an LED lamp set, 3 and a support frame.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 2, 3 and 4, a direct type diffusion plate structure without dark space comprises a diffusion plate 1, wherein the diffusion plate 1 comprises a glass substrate 11, an upper diffusion ink layer 12 and a lower diffusion ink layer 13, the upper diffusion ink layer 12 is arranged on the upper surface of the glass substrate 11, the lower diffusion ink layer 13 is arranged on the lower surface of the glass substrate 11, an LED lamp set 2 is arranged below the glass substrate 11, a supporting frame 3 is arranged on the periphery of the bottom of the glass substrate 11, the supporting frame 3 encloses the LED lamp set 2, and hollowed-out mesh points 121 are arranged on the periphery of the lower diffusion ink layer 13.

In order to directly pass through the glass substrate 11 of the hollow-out dots 121, the light transmittance per unit area, that is, the brightness is improved, and meanwhile, the effect of ensuring uniform light of the hollow-out dots 121 is achieved, so that the brightness is uniform, in this embodiment, the hollow-out rate of the hollow-out dots 121 gradually increases from the inner edge to the outer edge of the support frame 3.

In order to facilitate the manufacture of the hollow dots 121, in this embodiment, as shown in fig. 4, the holes of the hollow dots 121 are circular; the diameters of the holes of the hollowed-out net points 121 gradually become larger from the inner edge to the outer edge of the supporting frame 3, or the number of the holes of the hollowed-out net points 121 gradually becomes larger from the inner edge to the outer edge of the supporting frame 3.

The working principle is as follows:

the light of the LED lamp set 2 is emitted from the bottom, and then the light is diffused by the diffusion plate 1, so that soft and uniform light emission is realized, and meanwhile, the light directly passes through the glass substrate 11 of the hollowed-out lattice point 121, so that the light transmittance of unit area is improved, namely the brightness is improved, and the defect that dark areas exist around the diffusion plate 1 is effectively overcome.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. A direct type diffusion plate structure without dark areas is characterized in that: including diffuser plate (1), diffuser plate (1) include glass substrate (11), go up diffusion printing ink layer (12) and lower diffusion printing ink layer (13), go up diffusion printing ink layer (12) and set up the upper surface at glass substrate (11), lower diffusion printing ink layer (13) set up the lower surface at glass substrate (11), the below of glass substrate (11) is provided with LED banks (2), be provided with support frame (3) all around in the bottom of glass substrate (11), support frame (3) enclose LED banks (2), the edge is provided with fretwork site (121) all around of lower diffusion printing ink layer (13).

2. The dark space-free direct type diffusion plate structure according to claim 1, wherein: the hollowed-out rate of the hollowed-out net points (121) gradually increases from the inner edge to the outer edge of the supporting frame (3).

3. The dark space-free direct type diffusion plate structure according to claim 2, wherein: the holes of the hollowed-out net points (121) are round.

4. A direct-lit diffusion plate structure without dark areas as defined in claim 3, wherein: the diameters of the holes of the hollowed-out net points (121) gradually become larger from the inner edge to the outer edge of the supporting frame (3); or the number of the holes of the hollowed-out net points (121) gradually increases from the inner edge to the outer edge of the supporting frame (3).