CN216622905U

CN216622905U - Display panel and display device

Info

Publication number: CN216622905U
Application number: CN202123201097.7U
Authority: CN
Inventors: 邹能
Original assignee: China Display Optoelectronics Technology Huizhou Co Ltd
Current assignee: China Display Optoelectronics Technology Huizhou Co Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-27
Anticipated expiration: 2031-12-17

Abstract

The utility model provides a display panel and display equipment, wherein the display panel comprises a backlight module and a cover plate, the backlight module and the cover plate are bonded through a foam layer, the backlight module comprises a rubber frame and a glass layer arranged in the rubber frame, a reflecting layer is arranged on one side of the rubber frame, which faces the glass layer, and a light blocking separation cavity is formed among the foam layer, the glass layer and the rubber frame, so that light reflected from the reflecting layer is blocked by the foam layer. According to the utility model, the thickness of the rubber frame facing the glass layer part is reduced, so that a light blocking separation cavity is formed among the rubber frame, the glass layer and the foam, thus the distance between the rubber frame and the glass layer is increased, the distance between the reflective layer connected to the inner side of the rubber frame and the glass layer is naturally increased, and after the light is reflected from the reflective layer, the light is blocked by the foam layer above the reflective layer, so that the light cannot be emitted. The display panel has the advantages of good shading performance and capability of reducing the light leakage phenomenon of the display panel.

Description

Display panel and display device

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to a display panel and display equipment.

Background

The existing liquid crystal display panel comprises a liquid crystal backlight module and a cover plate, wherein the backlight module and the cover plate are spliced together in a bonding mode. The thinner the frame of the liquid crystal display panel is, the lower the light shielding performance is, and the light leakage phenomenon of the liquid crystal display panel can be seen from the side.

In view of the above, there is a need for a new display panel and a display device, which solve or at least alleviate the above technical drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a display panel and display equipment, and aims to solve the technical problem of light leakage of the display panel in the prior art.

To achieve the above object, according to an aspect of the present invention, there is provided a display panel including:

backlight unit and apron, backlight unit with the apron bonds through the cotton layer of bubble, backlight unit including glue the frame with set up in glue the glass layer in the frame, glue the frame and face one side on glass layer is provided with the reflector layer, the cotton layer of bubble the glass layer with be formed with the light between the gluey frame and hinder the chamber that separates to make follow the light that the reflector layer reflected out is by the cotton layer separation of bubble.

In one embodiment, the foam layer is a strip-shaped foam layer, and two sides of the strip-shaped foam layer are respectively bonded with the rubber frame and the cover plate.

In an embodiment, the foam layer comprises a first layer and a second layer which are stacked and bonded with each other, one side of the first layer, which is far away from the second layer, is bonded with the cover plate, one side of the second layer, which is far away from the first layer, is bonded with the rubber frame, and the second layer extends into the light blocking cavity, so that light reflected by the reflective layer is blocked by the second layer.

In one embodiment, the outer side of the first layer is flush with the outer side of the second layer, the width of the second layer is smaller than the width of the first layer, and the second layer is spaced apart from the glass layer by a predetermined distance.

In one embodiment, the thickness of the second layer is greater than the distance between the first layer and the rubber frame.

In one embodiment, the thickness of the second layer is denoted as a, the distance between the first layer and the rubber frame is denoted as B, and the difference between a and B is 0.1mm to 0.3 mm.

In one embodiment, the first layer and the second layer are integrally formed.

In one embodiment, the foam layer is a light absorbing foam layer.

In an embodiment, the backlight module further includes a light guide layer disposed at the bottom of the glass layer, and a light shielding adhesive layer is disposed between the light guide layer and the glass layer.

According to another aspect of the present invention, there is also provided a display apparatus including the display panel described above.

In the above scheme, display panel includes backlight unit and apron, and backlight unit and apron bond through the cotton layer of bubble, and backlight unit glues the frame and sets up the glass layer in gluing the frame including gluing, glues the frame and is provided with the reflector layer in the face of one side on glass layer, bubble cotton layer, glass layer and glue and be formed with the light between the frame and hinder and separate the chamber to make the light that reflects from the reflector layer by the cotton layer separation of bubble. In the prior art, the space between the glass layer and the inner side of the rubber frame is small, light reflected from the reflecting layer on the inner side of the rubber frame is emitted from the cover plate through the glass layer, light leakage of the display panel is caused, and the light leakage phenomenon can be seen from the side face. This scheme is through reducing the thickness of the gluey frame in the face of the glass layer part for glue and form a light between frame, glass layer and the cotton layer of bubble and hinder and separate the chamber, like this, increased the distance between gluey frame and the glass layer, just also increased the distance of connecting between the reflector layer of gluing the frame inboard and the glass layer naturally, can be blockked by the cotton layer of bubble of top after light reflects from the reflector layer, make light can't jet out. The utility model discloses a have that shading performance is good, can reduce the advantage of display panel light leak phenomenon.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a display panel according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a part of a display panel according to the prior art;

FIG. 3 is a schematic diagram of a partial structure of a display panel according to an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of a display panel according to another embodiment of the present invention;

FIG. 5 is a schematic view of another partial structure of a display panel according to another embodiment of the present invention;

fig. 6 is a schematic structural view of a foam layer and a rubber frame of a display panel according to another embodiment of the utility model.

The reference numbers illustrate:

1. a backlight module; 11. a rubber frame; 12. a glass layer; 121. liquid crystal display glass; 122. an optical filter; 2. soaking a cotton layer; 21. a first layer; 22. a second layer; 3. a cover plate; 4. a light blocking compartment; 5. a light guide layer; 6. a shading adhesive layer; 7. a liquid crystal light-blocking layer; 8. a cover plate light blocking layer; 9. a light reflecting layer.

The implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope claimed by the present invention.

Referring to fig. 1, 3-6, according to an aspect of the present invention, the present invention provides a display panel, including a backlight module 1 and a cover plate 3, the backlight module 1 and the cover plate 3 are bonded by a foam layer 2, the backlight module 1 includes a rubber frame 11 and a glass layer 12 disposed in the rubber frame 11, a reflective layer 9 is disposed on one side of the rubber frame 11 facing the glass layer 12, and a light blocking compartment 4 is formed among the foam layer 2, the glass layer 12 and the rubber frame 11, so that light reflected from the reflective layer 9 is blocked by the foam layer 2.

It should be noted that the glass layer 12 includes a liquid crystal display glass 121(TFT glass) and a filter 122, and referring to fig. 2 in the prior art, a distance between the glass layer 12 and the inner side of the rubber frame 11 is small, and a light ray a reflected from the reflective layer 9 on the inner side of the rubber frame 11 is emitted from the cover plate 3 through the glass layer 12, which causes light leakage of the display panel, and specifically, the light leakage phenomenon can be seen from the side surface of the cover plate 3. In the above embodiment, the thickness of the rubber frame 11 facing the glass layer 12 is reduced, so that the light blocking compartment 4 is formed between the rubber frame 11, the glass layer 12 and the foam layer 2, and thus, the distance between the rubber frame 11 and the glass layer 12 is increased, the distance between the reflective layer 9 connected to the inner side of the rubber frame 11 and the glass layer 12 is naturally increased, and when light is reflected from the reflective layer 9, the light is blocked by the foam layer 2 above the reflective layer, so that the light cannot be emitted. The embodiment has the advantages of good light shielding performance and capability of reducing the light leakage phenomenon of the display panel. Certainly, the foam layer 2 here is a light absorbing foam layer 2, and may be specifically a black light absorbing foam layer 2, and the blocking of the light rays reflected by the reflective layer 9 by the foam layer 2 may be absorbed by the foam layer 2.

Referring to fig. 3, as an embodiment of the present invention, the foam layer 2 is a strip-shaped foam layer, and two sides of the strip-shaped foam layer are respectively bonded to the rubber frame 11 and the cover plate 3. The design need not change the structure of current bubble cotton layer 2 like this, only need with part glue the frame 11 the thickness reduce can, can make the light that jets out from reflector layer 9 by the cotton layer 2 separation of bubble.

Referring to fig. 4 and 6, as a specific implementation manner of the present invention, the foam layer 2 includes a first layer 21 and a second layer 22 that are stacked and bonded to each other, a side of the first layer 21 away from the second layer 22 is bonded to the cover plate 3, a side of the second layer 22 away from the first layer 21 is bonded to the glue frame 11, and a portion of the second layer 22 extends into the light blocking compartment 4, so that light reflected from the light reflecting layer 9 is blocked by the second layer 22. In this embodiment, compared with the prior art, we not only reduce the thickness of part of the rubber frame 11, but also reduce the height of the rubber frame 11. Through our experiments, it is found that the arrangement of the foam in an L-shaped configuration and the partial extension of the second layer 22 into the light blocking compartment 4 provides a better light blocking effect than the previous embodiment. From the analysis in principle, because reduced the height of gluing frame 11, reduced the height of reflector layer 9 simultaneously, the scope of the light that reflector layer 9 reflects out reduces like this, stretches into second layer 22 simultaneously in the light hinders and separates chamber 4, from the exit path of the top separation light of reflector layer 9, can play better shading effect.

Referring to fig. 4-6, in an embodiment, the outer side of the first layer 21 is flush with the outer side of the second layer 22, the width of the second layer 22 is smaller than the width of the first layer 21, and the second layer 22 is spaced from the glass layer 12 by a predetermined distance. The second layer 22 is spaced from the glass layer 12 primarily for ease of installation. Since the bonding process of the foam itself is a process that is not particularly demanding with respect to precision, it may require a more than one side positioning during the bonding process, which affects the bonding efficiency if the second layer 22 is attached to the glass layer 12.

Referring to fig. 5, in an embodiment, in order to further increase the light shielding effect of the foam, a thickness pre-increasing manner may be adopted for the newly added second layer 22, that is, the thickness of the second layer 22 is greater than the distance between the first layer 21 and the rubber frame 11. Therefore, the second layer 22 has a small compression amount, so that the second layer 22 is bonded with the rubber frame 11 more tightly, the light leakage space is further filled, and the effect of blocking light leakage is further improved.

In one embodiment, the thickness of the second layer is denoted as a, the distance between the first layer and the rubber frame is denoted as B, and the difference between a and B is 0.1mm to 0.3 mm. Of course, those skilled in the art will understand that the difference between a and B can be set according to the actual requirement and the type of foam. The foam layer 2 has a large resilience force by setting the compression amount of the foam of the second layer 22 to be large. The effect of preventing light leakage is less obvious by setting the compression amount of the second layer 22 foam to be small. Meanwhile, the distance between the first layer 21 and the rubber frame 11 is referred to as a distance between the bottom surface of the first layer 21 and the top surface of the rubber frame 11. In one embodiment, for example, where the first layer 21 is spaced 0.5mm from the frame 11, a second layer 22 having a thickness of 0.6mm to 0.7mm may be used.

In one embodiment, the first layer 21 is integrally formed with the second layer 22. It will be appreciated by those skilled in the art that the first layer 21 and the second layer 22 may be integrally formed for ease of fabrication.

Referring to fig. 6, in an embodiment, of course, the backlight module 1 further includes a light guide layer 5 disposed below the glass layer 12, in order to increase the effect of preventing light leakage, a light-shielding glue layer 6 is disposed between the light guide layer 5 and the glass layer 12, after the width of the glue frame 11 is reduced, the light-shielding glue layer 6 extends to cover the upper surface of the horizontal section 111, a liquid crystal light-blocking layer 7 is also disposed between the liquid crystal display glass 121 and the light filter 122, a cover light-blocking layer 8 is disposed between the cover plate 3 and the foam, and the reflective layer 9 may also be a reflective wall. The illustration is a cross-sectional view, in practice the foam is arranged around the cover plate 3.

According to another aspect of the present invention, the present invention also provides a display apparatus including the display panel described above. The display device may be a mobile phone, a tablet, a computer or a television. Since the display device includes all technical solutions of all embodiments of all the display panels, at least all beneficial effects brought by all the technical solutions are achieved, and no further description is given here.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the claims and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A display panel, comprising:

2. The display panel according to claim 1, wherein the foam layer is a strip-shaped foam layer, and two sides of the strip-shaped foam layer are respectively bonded with the rubber frame and the cover plate.

3. The display panel according to claim 1, wherein the foam layer comprises a first layer and a second layer stacked and bonded to each other, a side of the first layer facing away from the second layer is bonded to the cover plate, a side of the second layer facing away from the first layer is bonded to the bezel, and a portion of the second layer extends into the light blocking cavity, so that light reflected from the light reflecting layer is blocked by the second layer.

4. The display panel according to claim 3, wherein an outer side of the first layer is disposed flush with an outer side of the second layer, wherein a width of the second layer is smaller than a width of the first layer, and wherein the second layer is disposed at a predetermined distance from the glass layer.

5. The display panel according to claim 3, wherein the thickness of the second layer is larger than the distance between the first layer and the adhesive frame.

6. The display panel according to claim 5, wherein the thickness of the second layer is denoted by A, the distance between the first layer and the glue frame is denoted by B, and the difference between A and B is 0.1mm to 0.3 mm.

7. The display panel according to claim 3, wherein the first layer and the second layer are integrally formed.

8. A display panel as claimed in any one of claims 1-7 characterized in that the foam layer is a light absorbing foam layer.

9. The display panel according to any one of claims 1 to 7, wherein the backlight module further comprises a light guide layer disposed at the bottom of the glass layer, and a light shielding glue layer is disposed between the light guide layer and the glass layer.

10. A display device characterized in that it comprises a display panel as claimed in any one of claims 1-9.