CN219266745U

CN219266745U - Backlight, display module and electronic equipment

Info

Publication number: CN219266745U
Application number: CN202320134362.4U
Authority: CN
Inventors: 朱元欢
Original assignee: Wannian Lianchuang Display Technology Co ltd
Current assignee: Wannian Lianchuang Display Technology Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-27
Anticipated expiration: 2033-01-17

Abstract

The utility model provides a backlight source, a display module and electronic equipment, the backlight source also comprises a first adhesive layer and a plurality of second adhesive layers, the first adhesive layer and the second adhesive layers are adhered to the same side wall of the light guide plate, a plurality of adhesion areas are arranged on the first adhesive layer, the adhesion areas are used for placing LED lamp beads, the first adhesive layer between the adjacent adhesion areas is used as a connecting belt for connecting the first adhesive layer with the second adhesive layer, gaps are reserved between the adjacent second adhesive layers, and light of the LED lamp beads in the adhesion areas is emitted through the gaps. Through this application, can avoid first glue film or second glue film to hinder LED lamp pearl to send out light, not only guaranteed the homogeneity of luminous effect, still be favorable to promoting the luminance of backlight.

Description

Backlight, display module and electronic equipment

Technical Field

The present utility model relates to the field of liquid crystal display technologies, and in particular, to a backlight source, a display module, and an electronic device.

Background

With innovations of mobile phone products, the types of mobile phone screens on the market become diversified, and the product structure tends to be light and thin gradually. Ultra-thin products have limitations in brightness enhancement, and their core is to enhance brightness mainly through a backlight (Back Light), which is one of the important factors determining brightness difference.

As shown in fig. 1, the conventional backlight source includes a light guide plate 10, an LED lamp bead 20 and a black-and-white glue 50, where the LED lamp bead 20 is generally attached to the light guide plate through the black-and-white glue 50, so as to achieve uniformity of the light emitting effect of the LED lamp bead 20, and since the attaching area 31 on the black-and-white glue 50 for attaching the LED lamp bead 20 is in a cuboid shape, and the black surface in the black-and-white glue 50 is attached to the LED lamp bead 20, when the LED lamp bead 20 is attached to the black-and-white glue 50, the black-and-white glue 50 absorbs part of the light emitted by the LED lamp bead 20, so as to affect the overall brightness of the backlight source.

Disclosure of Invention

Based on the above, the present utility model is directed to a backlight source, a display module and an electronic device, so as to solve the defects in the prior art.

In order to achieve the above object, the present utility model provides a backlight source, including a light guide plate and LED beads disposed on the light guide plate, the backlight source further includes a first adhesive layer and a plurality of second adhesive layers, the first adhesive layer and the second adhesive layer are attached to the same side wall of the light guide plate, a plurality of adhesion areas are disposed on the first adhesive layer, the adhesion areas are used for placing the LED beads, the first adhesive layer between adjacent adhesion areas is used as a connecting belt, and is used for connecting the first adhesive layer with the second adhesive layer, a gap is left between adjacent second adhesive layers, and light of the LED beads disposed in the adhesion areas is emitted through the gap.

The beneficial effects of the utility model are as follows: through setting up first glue film and second glue film on the light guide plate, set up a plurality of pasting regions that are used for placing LED lamp pearl on first glue film to make adjacent two first glue film between the pasting region is as the connecting band, utilizes the connecting band to be connected first glue film and second glue film, wherein, leaves the space between the adjacent second glue film, so that the light that is located the LED lamp pearl that pastes the region can send through the space, avoids first glue film or second glue film to hinder LED lamp pearl to send light, not only can guarantee luminous effect's homogeneity, still is favorable to promoting the luminance of backlight simultaneously.

Preferably, the second adhesive layer extends outwards to form an extension part, adjacent extension parts do not interfere with each other, and the extension part is adhered to the guide plate.

Preferably, the extension portion, the second adhesive layer and the connecting band are combined to form a mushroom-shaped structure.

Preferably, the first adhesive layer and the second adhesive layer are integrally formed.

Preferably, the first adhesive layer and the second adhesive layer are both made of black and white adhesive.

Preferably, the first adhesive layer is provided with an exhaust hole, and the exhaust hole is communicated with the adhesion area.

Preferably, two ends of the first adhesive layer are connected with expansion portions, and each expansion portion is of a right trapezoid structure.

In order to achieve the above purpose, the utility model also provides a display module, which comprises the backlight source.

In order to achieve the above purpose, the utility model also provides an electronic device, which comprises the display module set.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of a prior art backlight;

fig. 2 is a schematic structural diagram of a backlight source according to a first embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a first adhesive layer and a second adhesive layer according to a first embodiment of the present utility model.

Description of main reference numerals:

the utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 2 to 3, a backlight source according to a first embodiment of the present utility model includes a light guide plate 10, LED lamp beads 20, a first adhesive layer 30 and a second adhesive layer 40.

Wherein: the materials of the first adhesive layer 30 and the second adhesive layer 40 are black-and-white adhesives, the first adhesive layer 30 and the second adhesive layer 40 comprise white surfaces and black surfaces, the white surfaces of the first adhesive layer 30 and the second adhesive layer 40 are adhered to the light guide plate 10, the black surfaces of the first adhesive layer 30 are adhered to the LED lamp beads 20 so as to fix the LED lamp beads 20 on the light guide plate 10, the number of the LED lamp beads 20 is multiple, a plurality of adhering areas 31 are arranged on the first adhesive layer 30 so as to uniformly adhere the LED lamp beads 20 to the first adhesive layer 30, the sizes of the adhering areas 31 are matched with the sizes of the LED lamp beads 20, and the LED lamp beads 20 are placed in the adhering areas 31.

It should be noted that, the first adhesive layer 30 between the adjacent adhesive areas 31 is used as the connecting band 32 for connecting the first adhesive layer 30 and the second adhesive layer 40, that is, the second adhesive layer 40 is connected with the first adhesive layer 30 through the connecting band 32, and a gap is left between the adjacent second adhesive layers 40, and the gap is located at the opening of the adjacent adhesive area 31 and is communicated with the adjacent adhesive area 31, so that the light of the LED lamp beads 20 located in the adhesive area 31 can be emitted sequentially through the opening and the gap of the adhesive area 31.

In this embodiment, the second adhesive layer 40 extends outwards to form the extension portion 41, and adjacent extension portions 41 do not interfere with each other, specifically, a gap of 1.9mm-2.0mm is reserved between adjacent extension portions 41, wherein the LED lamp beads 20 in the adjacent adhesive area 31 belong to a "dark area", and blocking of light of the LED lamp beads 20 can be avoided by reserving a gap with a certain interval, so that the light-emitting brightness of the backlight source can be effectively improved.

It can be understood that the side wall of the light guide plate 10, which is used for fixing the LED lamp beads 20, is inclined, so that a certain inclination angle exists, so that the light emitting end of the LED lamp beads 20 is prevented from being easily sprung up, and a "lamp eye" is caused, that is, the visible area of the light emitting end of the LED lamp beads 20 is uneven, and the problem of affecting the uniform light emitting effect is solved, and the adhesion area of the second adhesive layer 40 and the light guide plate 10 is increased by adding the extension portion 41, so that the connection relationship is enhanced, and the problem is solved. In this embodiment, the extension 41, the second adhesive layer 40 and the connecting band 32 are combined to form a mushroom-shaped structure.

In this embodiment, two ends of the first adhesive layer 30 are connected with expansion portions 33, the expansion portions 33 and the first adhesive layer 30 are integrally formed, each expansion portion 33 has a right trapezoid structure, it can be understood that the expansion portion 33 includes a first end portion and a second end portion, the area of the first end portion is smaller than that of the second end portion, and the second end portion of the expansion portion 33 is connected with the first adhesive layer 30.

In this embodiment, the first adhesive layer 30 is provided with a plurality of exhaust holes 34, each pasting area 31 is matched with one exhaust hole 34, each exhaust hole 34 is communicated with the corresponding pasting area 31, when the LED lamp beads 20 are pasted on the pasting area 31, air between part of the LED lamp beads 20 and the pasting area 31 can be exhausted through the exhaust holes 34 to assist the pasting operation of the LED lamp beads 20, meanwhile, because the first adhesive layer 30 is long-strip-shaped, when the first adhesive layer 30 is pasted and fixed on the light guide plate 10, the middle part of the first adhesive layer 30 is difficult to exhaust redundant air, the pasting is not facilitated, and the arrangement of the exhaust holes 34 can also exhaust air between the first adhesive layer 30 and the light guide plate 10 to assist the pasting operation of the first adhesive layer 30.

In a specific implementation, the first adhesive layer 30 and the second adhesive layer 40 are disposed on the light guide plate 10, the adhesive areas 31 for placing the LED lamp beads 20 are disposed on the first adhesive layer 30, the first adhesive layer 30 between two adjacent adhesive areas 31 is used as the connecting belt 32, the connecting belt 32 is used to connect the first adhesive layer 30 with the second adhesive layer 40, and a gap is left between the adjacent second adhesive layers 40, so that the light of the LED lamp beads 20 in the adhesive areas 31 can be emitted through the gap, the first adhesive layer 30 or the second adhesive layer 40 is prevented from blocking the light emitted by the LED lamp beads 20, the uniformity of the light-emitting effect can be ensured, and the luminance of the backlight source can be improved.

It should be noted that the foregoing implementation procedure is only for illustrating the feasibility of the present application, but this does not represent that the backlight source of the present application has only one implementation procedure, and may be incorporated into the feasible embodiment of the present application as long as the backlight source of the present application can be implemented.

The second embodiment of the utility model also provides a display module, which comprises the backlight source in the first embodiment.

The third embodiment of the utility model also provides electronic equipment, which comprises the display module in the second embodiment.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a backlight, includes the light guide plate and locates LED lamp pearl on the light guide plate, its characterized in that, the backlight still includes first glue film and a plurality of second glue film, first glue film with the second glue film all attach in on the same lateral wall of light guide plate, be equipped with a plurality of bonding areas on the first glue film, bonding area is used for placing LED lamp pearl, adjacent first glue film between the bonding area is as the connecting band, is used for with first glue film with the second glue film is connected, adjacent leave the space between the second glue film, be located LED lamp pearl's in the bonding area light passes through the space sends.

2. The backlight of claim 1, wherein the second adhesive layer extends outward to form an extension, adjacent extensions do not interfere with each other, and the extension is adhered to the light guide plate.

3. The backlight of claim 2, wherein the extension, the second adhesive layer, and the connecting band are combined to form a mushroom-shaped structure.

4. The backlight of claim 1, wherein the first glue layer and the second glue layer are integrally formed.

5. The backlight of claim 1, wherein the first adhesive layer and the second adhesive layer are both black and white.

6. The backlight of claim 1, wherein the first adhesive layer is provided with an air vent, and the air vent is in communication with the adhesive region.

7. The backlight of claim 1, wherein two ends of the first adhesive layer are connected with expansion portions, and each expansion portion has a right trapezoid structure.

8. A display module comprising the backlight of any one of claims 1-7.

9. An electronic device comprising the display module of claim 8.