Brightness reinforcing structure for oblique dark area on edge of glass diffusion plate

Abstract

The utility model belongs to the technical field of glass diffusion plates, and particularly relates to a glass diffusion plate edge strabismus dark area brightness reinforcing structure which comprises a [-shaped supporting frame, a reflector plate layer is arranged in the supporting frame, and LED lamp beads are arranged in the supporting frame at intervals. A lower diffusion coating, a glass substrate, an upper diffusion coating, an OCA optical adhesive layer and an optical film are sequentially arranged on the outward layer of the supporting frame. A reflecting coating is arranged between the glass substrate and the supporting frame; a plurality of diffusion lattice points are arranged at the edge of one side, facing the supporting frame, of the glass substrate. According to the glass diffusion plate edge strabismus dark area brightness supplementing structure, the position, making contact with the module supporting frame, of the light inlet face of the glass diffusion plate is coated with the reflection coating, light rays are reflected back to the light outlet face of the diffusion plate at a large angle, the number of the light rays on the edge of a backlight module under the strabismus condition is increased, and the effect of supplementing the strabismus dark area is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass diffusion plates, and particularly relates to a structure for compensating the brightness of the edge oblique view dark area of a glass diffusion plate. Background Art

[0002] Due to the limitation of the light-emitting angle of the LED lamp beads in the direct-lit backlight module, the outermost LED lamp beads will generate a dark area with a certain width around the module due to the lack of additional light compensation, which affects the overall picture effect of the module. The conventional method can achieve the effect of compensating the dark area by appropriately reducing the shielding of the dark area part and increasing the light transmittance of the dark area part. When this method is applied to the structure where the inside of the module is completely covered by the reflector, the dark area can be completely eliminated in the front view and oblique view. However, in some backlight module architectures, the side walls inside cannot completely cover the reflector.

[0003] In the prior art, at the position near the diffusion plate inside the backlight module support frame, in order to increase the support strength, an inclined surface design is made. However, the width of the inclined surface is relatively narrow, and the reflector cannot be completely bent and attached to the inclined surface. The reflectivity of the exposed part is much lower than that of the reflector. At this time, it is easy to generate a dark area in the oblique view, which affects the picture effect of the display. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a structure for compensating the brightness of the edge oblique view dark area of a glass diffusion plate, so as to solve the technical problem that the reflector cannot be completely bent and attached to the inclined surface, and the reflectivity of the exposed part is much lower than that of the reflector. At this time, it is easy to generate a dark area in the oblique view, which affects the picture effect of the display, and achieve the purpose of compensating the oblique view dark area by coating a reflective coating at the position where the light incident surface of the glass diffusion plate contacts the module support frame, reflecting the light back to the light exit surface of the diffusion plate at a large angle, and increasing the amount of light at the edge of the backlight module in the case of oblique view.

[0005] In order to solve the above technical problems, the utility model provides a structure for compensating the brightness of the edge oblique view dark area of a glass diffusion plate, including:

[0006] A U-shaped support frame, with a reflector layer and LED lamp beads arranged at intervals inside the support frame;

[0007] A lower diffusion coating, a glass substrate, an upper diffusion coating, an OCA optical adhesive layer and an optical film are sequentially arranged on the outer layer of the support frame;

[0008] A reflective coating is arranged between the glass substrate and the support frame;

[0009] A plurality of diffusion dots are arranged at the edge of the side of the glass substrate facing the support frame.

[0010] Furthermore, the thickness of the reflective coating is 15-20 micrometers, and the reflectivity of the reflective coating in the visible light range is 88-92%.

[0011] Furthermore, the reflective coating and the supporting frame are provided with double-sided tape.

[0012] Furthermore, the density of the diffusion points gradually increases from the outside to the inside.

[0013] Furthermore, the distribution width of the diffusion points is 20 mm.

[0014] The beneficial effects of the utility model are:

[0015] 1. By applying a reflective coating at the position where the light incident surface of the glass diffuser plate contacts the module support frame, the light is reflected back to the light exiting surface of the diffuser plate at a large angle, increasing the amount of light at the edge of the backlight module in the case of squinting, thereby compensating for the dark area of ​​squinting.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the oblique dark area brightening structure of the edge of the glass diffusion plate of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a portion of a structure for brightening a dark area at an oblique view at the edge of a glass diffusion plate of the utility model;

[0020] Figure 3 It is a reflection schematic diagram of the reflective coating of the part of the oblique dark area brightening structure at the edge of the glass diffusion plate of the utility model.

[0021] In the figure:

[0022] 1. Support frame; 11. Reflection sheet layer; 12. LED lamp beads;

[0023] 2. Lower diffusion coating; 21. Glass substrate; 22. Upper diffusion coating; 23. OCA optical adhesive layer; 24. Optical film;

[0024] 3. Reflective coating;

[0025] 4. Double-sided tape;

[0026] 5. Spread the outlets. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] Example:

[0029] like Figures 1 to 3 As shown, a structure for brightening dark areas at the edge of a glass diffuser plate when viewed obliquely includes a U-shaped support frame 1, wherein a reflective sheet layer 11 and LED lamp beads 12 are arranged at intervals inside the support frame 1.

[0030] The outer layer of the support frame 1 is provided with a lower diffusion coating 2, a glass substrate 21, an upper diffusion coating 22, an OCA optical adhesive layer 23 and an optical film 24 in sequence.

[0031] In this embodiment, a reflective coating 3 is provided between the glass substrate 21 and the support frame 1; a double-sided adhesive 4 is provided between the reflective coating 3 and the support frame 1 to increase the thickness of the reflective coating 3, which is 15-20 microns, and the reflectivity of the reflective coating 3 in the visible light range is 88-92%.

[0032] A plurality of diffusion dots 5 are arranged at the edge of the glass substrate 21 facing the support frame 1. The density of the diffusion dots 5 increases gradually from the outside to the inside. The distribution width of the diffusion dots 5 is 20 mm.

[0033] There is no reflective sheet covering the inclined surface of the support frame 1 close to the diffuser plate, which makes the reflectivity of this area low. At a normal viewing angle, the diffuser dots 5 arranged on the four sides of the diffuser plate have an increased transmittance relative to the diffuser coating coated on the entire surface, which makes up for the dark area caused by insufficient light due to the arrangement of the LED lamp beads 12 and the low reflectivity of the inclined surface of the support column. However, in the case of squinting, the light reflected at a large angle received by the line of sight passes through the lower diffuser coating 2. When the reflectivity of the inclined surface is insufficient, the reflected light is reduced, forming an squinting dark area. After the reflective coating 3 is coated on the edge of the diffuser plate, the reflectivity of the light at the edge is significantly improved, and the reflected light is a large-angle scattered light, which makes up for the reduction of oblique reflected light due to insufficient reflectivity at the inclined surface of the support frame 1, thereby making up for the squinting dark area.

[0034] In summary: by applying a reflective coating 3 at the position where the light incident surface of the glass diffuser plate contacts the module support frame 1, the light is reflected back to the light exiting surface of the diffuser plate at a large angle, increasing the amount of light at the edge of the backlight module in the case of squinting, thereby compensating for the dark area of ​​squinting.

[0035] The various devices selected in this application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0036] In the description of the embodiments of the present invention, 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A structure for brightening dark areas at the edge of a glass diffuser plate, characterized in that: Comprising: A U-shaped support frame (1), with a reflective sheet layer (11) disposed inside the support frame (1) and LED beads (12) spaced apart; Outwardly of the support frame (1), there are sequentially arranged a lower diffusion coating (2), a glass substrate (21), an upper diffusion coating (22), an OCA optical adhesive layer (23), and an optical film (24); A reflective coating (3) is provided between the glass substrate (21) and the support frame (1); A number of diffusion dots (5) are provided at the edge of the side of the glass substrate (21) facing the support frame (1).

2. A structure for compensating and brightening the edge oblique-view dark area of a glass diffusion plate according to claim 1, wherein The thickness of the reflective coating (3) is 15 - 20 microns, and the reflectivity of the reflective coating (3) within the visible light range is 88 - 92%.

3. A structure for compensating and brightening the edge oblique-view dark area of a glass diffusion plate according to claim 2, wherein A double-sided adhesive (4) is provided between the reflective coating (3) and the support frame (1).

4. A structure for compensating and brightening the edge oblique-view dark area of a glass diffusion plate according to claim 3, wherein The density of the diffusion dots (5) gradually increases from the outside to the inside.

5. A structure for compensating and brightening the edge oblique-view dark area of a glass diffusion plate according to claim 4, wherein The distribution width of the diffusion dots (5) is 20 mm.

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