CN218455810U

CN218455810U - Front light guide plate

Info

Publication number: CN218455810U
Application number: CN202222288334.6U
Authority: CN
Inventors: 龙定华; 张海辉
Original assignee: Xinhuikai Technology Shenzhen Co ltd
Current assignee: Xinhuikai Technology Shenzhen Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-02-07
Anticipated expiration: 2032-08-30

Abstract

The utility model relates to a design of leading light guide plate belongs to the light guide plate field, including the light guide plate substrate, one side of light guide plate substrate is provided with the light source, the upper surface of light guide plate substrate is provided with a plurality of preceding light site, and is a plurality of the shape of preceding light site is cylindrical calotte, and is a plurality of the size homogeneous phase of preceding light site is the same, the light guide plate substrate has reflective display screen through the bonding of optical bonding glue, and the purpose is to regard as preceding light guide plate substrate to use the light guide plate substrate to be provided with a plurality of non-uniform distribution's cylindrical calotte preceding light site on the light guide plate substrate, improved the problem of the light and shade patch that preceding light ray is inhomogeneous and light ray cover is not producing before using, make display device can use in all weather.

Description

Front light guide plate

Technical Field

The utility model relates to a light guide plate field specifically is a leading light guide plate.

Background

The reflective display has the advantages of eye protection, low power consumption, environmental protection and the like, and due to the characteristic limitation of the reflective display, a light source cannot be provided in a backlight source mode, but the good display effect of a screen can be realized only by reflecting external light sources such as natural light or lamplight, so that the existing reflective display can be used only in the daytime or under the condition of an additional illumination light source, but the display is dark under the condition of dark light, the eyes cannot see clearly, and the reflective display cannot be used in all weather.

The traditional solution is to add LED illumination on the periphery of the display screen, but by adopting the method, the illumination problem can be solved, and the problem of light and shade patches generated by front light due to nonuniform light of the front light and insufficient light coverage can be solved.

Therefore, a front light guide plate is provided to solve the above problems of the related art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical problem who solves provides a leading light guide plate, and aim at uses the light guide plate base material as preceding light guide plate to be provided with the cylindrical calotte front light site of a plurality of non-uniform distributions on the light guide plate base material, improved the problem of the light and shade patch that the light produced before using is not even and light covers for the display device can use in all weather.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a leading light guide plate, includes light guide plate base material, one side of light guide plate base material is provided with the light source, the upper surface of light guide plate base material is provided with a plurality of preceding light site, and is a plurality of the shape of preceding light site is cylindrical dome, and is a plurality of the size homogeneous phase of preceding light site is the same, light guide plate base material has the reflective display screen through the bonding of optical bonding glue.

The utility model has the advantages that:

1. light rays of the light source enter the front light mesh points through the light guide plate substrate to form total reflection, so that the light rays emitted by the light guide plate substrate are more uniform, the coverage is better, and the problem of light and shade patches of a display caused by incomplete light ray coverage is avoided;

2. the sizes of the front light screen points are set in a subdivision mode according to the sizes of different displays, so that the mold cost can be effectively reduced, the manufacturing efficiency of the mold is improved, and the yield of products is improved.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the diameter range of the front light mesh used for the small and medium-sized displays is 0.01mm-0.025mm.

The adoption of the further scheme has the beneficial effects that the diameter range of the front light screen points is 0.01mm-0.025mm, and the front light screen points are used as ultra-precise design of a medium-small-size display, so that the front light screen points can be uniformly covered during light guiding without influencing the display.

Further, the diameter of the front light mesh for a large-sized display ranges from 0.025mm to 0.05mm.

The adoption of the further scheme has the beneficial effects that the diameter range of the front light dots is 0.025mm-0.05mm, and the front light dots are used as an ultra-precise design of a large-size display, so that the front light dots can be uniformly covered during light guiding without influencing the display.

Further, the light source is an LED lamp.

The beneficial effect of adopting the above-mentioned further scheme is, provide stable light source.

Further, the front light mesh points are smooth surfaces.

The beneficial effect of adopting above-mentioned further scheme is that, smooth front light site in surface is difficult to have burr and corner, can not influence optics homogeneity and demonstration definition.

Furthermore, the plurality of front light mesh points on the light guide plate substrate are non-uniformly distributed.

The beneficial effect who adopts above-mentioned further scheme is, can effectually avoid the dot to interfere the display effect that the mole line appears and influence the display.

Further, the diameter of the front light mesh point is larger than the height of the front light mesh point, and the height of the front light mesh point is smaller than 0.01mm.

The beneficial effect who adopts above-mentioned further scheme is, guarantees that preceding light site is the round bag shape and is the design of super little structure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a sectional view of the structure of the present invention;

fig. 4 is a top view of the front light mesh point light walking of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a light guide plate base material; 2. a light source; 3. a reflective display screen; 4. a front light dot; 5. and (4) optical adhesive glue.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1 to 4, a front light guide plate includes a light guide plate substrate 1, a light source 2 is disposed on one side of the light guide plate substrate 1, the light guide plate substrate 1 may be ultra-white glass, the ultra-white glass is not affected by severe conditions such as high temperature, high humidity or sun exposure, and the reliability of the light guide plate substrate 1 may be increased, a plurality of front light dots 4 are disposed on the upper surface of the light guide plate substrate 1, the plurality of front light dots 4 are in the shape of a cylindrical dome, the plurality of front light dots 4 are the same in size, the light guide plate substrate 1 is bonded with a reflective display screen 3 through an optical adhesive 5, the optical adhesive 5 may be silicone rubber, acrylic resin, unsaturated polyester, polyurethane, epoxy resin, and the like, and some treating agents are usually added during preparation to improve the optical performance or reduce the curing shrinkage.

The diameter range of the front light screen points 4 used for small and medium-sized displays is 0.01mm-0.025mm, the diameter is not too large, if the diameter is too large, the number of the front light screen points 4 is less, and the light guide effect of the front light screen points 4 is not completely covered to form light and dark patches during light guide.

The diameter range of the front light dots 4 for a large-size display is 0.025mm-0.05mm.

The light source 2 is an LED lamp.

The front light mesh point 4 is a smooth surface, and does not cause light scattering to cause display bright spots.

The plurality of front light screen dots 4 on the light guide plate substrate 1 are non-uniformly distributed, that is, the front light screen dots 4 are randomly distributed, and if the front light screen dots are regularly distributed, moire is easy to occur, so that the display effect of the display is influenced.

The diameter of the front light mesh point 4 is larger than the height of the front light mesh point 4, and the height of the front light mesh point 4 is smaller than 0.01mm.

In the embodiment, when the light guide plate is used, the light guide plate substrate 1 is used as a front light guide plate, the plurality of front light mesh points 4 which are arranged in a non-uniform mode are arranged on the upper surface of the light guide plate substrate 1, the plurality of front light mesh points 4 are identical in size, the light source 2 is started, light enters from the light guide plate substrate 1 and is scattered to the periphery by taking round points of the front light mesh points 4 as centers, the light emitted by the light guide plate substrate 1 is more uniform, the coverage is better, the problem of light and dark spots of a medium-small-size display caused by incomplete light coverage is avoided, and the display equipment can be used in all weathers and can also be used as outdoor display; the front light screen points 4 with different sizes can be used for different production and manufacturing equipment, the diameter of the front light screen points 4 is 0.01mm-0.025mm, when the height is 0.01mm, the front light screen points can be used for medium and small size displays smaller than 20 inches, the diameter of the front light screen points 4 is 0.025mm-0.05mm, when the height is 0.01mm, the front light screen points can be used for large size displays larger than 20 inches, the display effect of products cannot be influenced, and the cost of the die can be effectively reduced.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a leading light guide plate, includes light guide plate substrate (1), its characterized in that, one side of light guide plate substrate (1) is provided with light source (2), the upper surface of light guide plate substrate (1) is provided with a plurality of preceding light site (4), and is a plurality of the shape of preceding light site (4) is cylindrical dome, and is a plurality of the size homogeneous phase of preceding light site (4) is the same, light guide plate substrate (1) has reflective display screen (3) through optics adhesive (5) bonding.

2. The front light guide plate according to claim 1, wherein the diameter of the front light dots (4) for medium and small size displays is in the range of 0.01mm-0.025mm.

3. The front light guide plate according to claim 1, wherein the diameter of the front light dots (4) for large-size display is in the range of 0.025mm to 0.05mm.

4. The front light guide plate according to any one of claims 1 to 3, wherein the light source (2) is an LED lamp.

5. The front light guide plate according to any one of claims 1 to 3, wherein the front light dots (4) have a smooth surface.

6. The front light guide plate according to any one of claims 1 to 3, wherein the plurality of front light dots (4) on the light guide plate substrate (1) are non-uniformly distributed.

7. The front light guide plate according to any one of claims 1 to 3, wherein the diameter of the front light dots (4) is larger than the height of the front light dots (4), and the height of the front light dots (4) is less than 0.01mm.