CN220773894U - Display module and electronic equipment - Google Patents

Abstract

The utility model provides a display module and electronic equipment. The display module comprises a display panel, a buffer layer and a compression-resistant layer; wherein the display panel includes a main body portion and an edge portion disposed around the main body portion; the buffer layer is positioned in the main body area of the display panel and is arranged on the non-display surface; the compression-resistant layer is positioned in the edge area of the display panel and is arranged on the non-display surface; and the buffer layer is provided with the compression-resistant layer at least along two sides of the first direction. The compression-resistant layer is arranged in the area, which is not shielded by the buffer layer, of the non-display surface of the display panel, and the compression-resistant layers are arranged on two sides of the buffer layer at least along the first direction, so that the thickness of the display module at the corresponding position is increased, the moment of inertia of the display module is increased, and the bending resistance of the display module at least along the first direction is effectively improved; and further reduces OCA deformation and OCA bubbles in the terminal test process.

Description

Display module and electronic equipment

Technical Field

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

Background

With the development of display technology, terminal air pressure test is generally required for the display module, and the requirement for terminal air pressure test for the display module is more and more strict. However, in the related display module, the display module is easily deformed and the OCA bubbles are generated during the terminal air pressure test.

Disclosure of Invention

The utility model provides a display module and electronic equipment, and aims to solve the problems that the air pressure deformation resistance of a related display module is weak, the display module deforms in the terminal air pressure testing process, and OCA bubbles appear.

In order to solve the technical problems, the utility model adopts a technical scheme that: a display module is provided. The display module comprises a display panel, a buffer layer and a compression-resistant layer; wherein, the display panel includes a main body portion and an edge portion, the edge portion being disposed around the main body portion; the buffer layer is positioned in the main body area of the display panel and is arranged on the non-display surface; the compression-resistant layer is positioned in the edge area of the display panel and is arranged on the non-display surface; and the buffer layer is provided with the compression-resistant layer at least along two sides of the first direction.

In some embodiments, the rim portion is disposed about a perimeter of the body portion; the compressive layer covers the entire edge portion along the periphery of the edge portion.

In some embodiments, an orthographic projection of the buffer layer on the display panel is completely coincident with the main body portion;

one side of the compression-resistant layer is in contact with the edge of the buffer layer, and the other side of the compression-resistant layer is flush with the edge of one side of the edge part away from the main body part.

In some embodiments, an orthographic projection of the buffer layer on the display panel is completely coincident with the main body portion;

one side of the compression-resistant layer is arranged at intervals with the edge of the buffer layer; and the other side of the compression-resistant layer is arranged at intervals with the edge of one side of the edge part away from the main body part.

The buffer layer is foam; the display panel is a hard display panel.

In some embodiments, the thickness of the compressive layer is no greater than the thickness of the buffer layer;

preferably, the compression-resistant layer has the same thickness as the buffer layer.

In some embodiments, the buffer layer and the compressive layer are each rectangular.

In some embodiments, the compressive layer is a coating structure formed on the edge portion.

In some embodiments, the coating structure is a glass layer.

In order to solve the technical problems, the utility model adopts a technical scheme that: an electronic device is provided. The electronic equipment comprises the display module.

The beneficial effects of the embodiment of the utility model are different from the related technology: the display module comprises a display panel, a buffer layer and a compression-resistant layer; the display panel includes a main body portion and an edge portion surrounding the main body portion; the buffer layer is positioned in the main body area of the display panel and is arranged on the non-display surface; the compression-resistant layer is located in the edge area of the display panel and is arranged on the non-display surface, and the buffer layer is provided with compression-resistant layers at least along two sides of the first direction. According to the arrangement, the compression-resistant layer is arranged in the area, which is not shielded by the buffer layer, of the non-display surface of the display panel, and the compression-resistant layers are arranged on the two sides of the buffer layer at least along the first direction, so that the thickness of the display module at the corresponding position is increased, the moment of inertia of the display module is increased, and the bending resistance of the display module at least along the first direction is effectively improved; and further reduces OCA deformation and OCA bubbles in the terminal test process.

Drawings

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

FIG. 1 is a schematic diagram of a process of performing an air pressure test on a display module;

fig. 2a to fig. 2c are schematic structural diagrams of a display module according to a first view angle of the display module according to various embodiments of the present utility model;

FIG. 3 is a side view of the display module of FIG. 2a along the length direction;

FIG. 4 is a schematic structural diagram of the display panel at a first viewing angle;

fig. 5 is a schematic structural diagram of a display module according to another embodiment of the utility model at a first viewing angle;

fig. 6 is a cross-sectional view of a display module according to an embodiment of the utility model along a thickness direction;

fig. 7 to 9b are schematic structural diagrams of a display module according to a first view angle of the display module according to the different embodiments;

fig. 10 is a schematic structural diagram of a display module according to another embodiment of the utility model at a first viewing angle;

fig. 11 is a schematic diagram of an electronic device according to an embodiment of the present utility model.

Reference numerals

10-a display module; 1-a display panel; 11-a body portion; 12-edge portion; 2-cover plate; 3-a buffer layer; 4-compression layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

In the description of the embodiments of the present utility model, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present utility model, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The display module includes a display panel 1, a cover plate 2 covering the display panel 1, and OCA (Optical ClearAdhhesive, optical cement) (not shown) for adhering the cover plate 2 and the display panel 1. In the related art, as shown in fig. 1, fig. 1 is a schematic diagram illustrating a process of performing an air pressure test on a display module; terminal air pressure test is usually required to be performed on the display module, and requirements for terminal air pressure test on the display module are becoming more and more strict. However, in order to meet the light and thin requirements of the display module, the thickness of the display module is lower and lower, so that the air pressure deformation resistance of the display module is weaker, the display module is deformed in the terminal air pressure testing process, and the problem of OCA bubbles occurs.

In order to solve the technical problem, the utility model provides a display module, wherein the display module is provided with a compression-resistant layer in a region of a non-display surface of a display panel, which is not shielded by a buffer layer, and the compression-resistant layers are arranged on two sides of the buffer layer at least along a first direction, so that the thickness of the display module at a corresponding position is increased, and the moment of inertia of the display module is increased, so that the bending resistance of the display module at least along the first direction is effectively improved; and further reduces OCA deformation and OCA bubbles in the terminal test process.

The present utility model will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 2a to fig. 3, fig. 2a to fig. 2c are schematic structural diagrams of a display module according to a first view angle of the display module according to various embodiments of the present utility model; FIG. 3 is a side view of the display module 10 of FIG. 2a along the length direction; in the present embodiment, a display module 10 is provided, and the display module 10 includes a display panel 1, a buffer layer 3, and a compression layer 4.

The display panel 1 may be a rigid display panel, i.e. a rigid screen, such as an LCD screen, which is usually a glass substrate, and is not bendable or bendable. The display panel 1 has a display surface and a non-display surface facing away from each other, and the display surface of the display panel 1 is used for displaying a screen during operation. The display panel 1 may be a TFT (Thin Film Transistor ) display screen. The specific structure and function of the display panel 1 are the same as or similar to those of the related display panel, and the same or similar technical effects can be achieved, and specific reference can be made to the related art.

The buffer layer 3 and the compression layer 4 are both arranged on the non-display surface of the display panel 1. Wherein, the buffer layer 3 is designed on the non-display surface of the display panel 1, and the buffer layer 3 does not completely cover the edge of the display panel 1 due to the tolerance (as shown in fig. 1). Referring to fig. 4, fig. 4 is a schematic structural diagram of the display panel 1 at a first viewing angle; the present utility model defines the portion of the display panel 1 covered by the buffer layer 3 as a main body portion 11; the region where the main body 11 is located is a main body region. The rest of the display panel 1 except the main body portion 11, that is, the portion of the display panel 1 not covered by the buffer layer 3 is an edge portion 12; the region where the edge portion 12 is located is an edge portion region. Wherein the rim portion 12 is arranged around the body portion 11. It will be appreciated that the front projection of the buffer layer 3 onto the display panel 1 is fully coincident with the main body portion 11; the buffer layer 3 is specifically provided on the non-display surface of the main body 11. In some embodiments, the material of the buffer layer 3 is foam, and the foam has elastic characteristics, so that the impact on the display panel 1 can be reduced, thereby improving the performance of the display module 10.

The compression layer 4 is located in the edge area of the display panel 1 and is disposed on the non-display surface of the edge 12, and the thickness of the compression layer 4 is not greater than that of the buffer layer 3, so as to avoid the impact of the compression layer 4 on the overall thickness of the display module 10. In some embodiments, as shown in fig. 5, fig. 5 is a schematic structural diagram of a display module 10 according to another embodiment of the present utility model at a first viewing angle; the buffer layer 3 is provided with a compression layer 4 at least on both sides in the first direction. By providing the compression layer 4 in the area of the non-display surface of the display panel 1 not shielded by the buffer layer 3 and providing the compression layer 4 on at least two sides of the buffer layer 3 in the first direction, the thickness of the display module 10 at the corresponding position can be increased. The first direction may be any direction passing through the center of the display panel 1, such as the longitudinal direction X or the width direction Y.

According to the following formulas (1) and (2):

Iz＝bh ³ 12; (1) wherein Iz is a rectangular moment of inertia; b is the width; h is the thickness.

Flexural rigidity= EIz; wherein, E value is the elastic modulus of the product, and Iz is the moment of inertia.

It can be seen that the inertia distance is proportional to the third power of the thickness; it is well known to those skilled in the art that the elastic modulus of each product is fixed, and therefore the flexural rigidity of the product is also proportional to the moment of inertia of the product; that is, the bending rigidity increases with an increase in the moment of inertia, which increases with an increase in the thickness; that is, the bending stiffness increases with increasing thickness.

Therefore, in the embodiment of the present utility model, by increasing the thickness of the display module 10 at the position corresponding to the edge portion 12, the bending stiffness of the display module 10 at the position corresponding to the display module 10 can be increased, so as to effectively improve the bending resistance of the display module 10 at least along the first direction; and further reduces OCA deformation and OCA bubbles in the terminal test process.

Specifically, referring to fig. 6, fig. 6 is a cross-sectional view of a display module 10 along a thickness direction according to an embodiment of the present utility model; the centroid of the display module 10 is not affected by a small amount of coating; wherein, when the width of the compressive layer 4 is b ', the thickness is h', and the thickness of the display module 10 at the corresponding position is h, the bending strength of the display module 10 is increased by at least E (b 'h' ^{^3} /12+b’h’*[(h+h’)/2] ^{^2} )。

In some embodiments, as shown in fig. 1 and 4, the rim portion 12 is disposed around the periphery of the body portion 11; the compression layer 4 covers the entire edge portion 12 along the periphery of the edge portion 12, i.e. the compression layer 4 forms a closed loop structure. In this way, the compression-resistant layer 4 and the display panel 1 can be utilized to form a side U-shaped structure similar to a channel steel shape; thereby increasing the bending resistance of the display module 10 in all directions; furthermore, in the terminal air pressure testing process, the display module 10 can be tested along any direction, the preset testing direction is not needed, the operation is convenient, and the testing speed can be effectively ensured.

In some embodiments, as shown in fig. 2a, the display panel 1, the buffer layer 3 and the compressive layer 4 are all rectangular. The four corners of the rectangle may be at right angles (as in fig. 2 a); or chamfered (as in fig. 2 b). Of course, in other embodiments, referring to fig. 7 to 9a, schematic structural diagrams of the display module according to the different embodiments at the first viewing angle are shown respectively; the display panel 1, the buffer layer 3 and the compression layer 4 may have a circular shape (as shown in fig. 7), an elliptical shape (as shown in fig. 8), a square shape (as shown in fig. 9a and 9 b), or the like. The embodiments of the present utility model are all described by taking rectangular shapes as examples.

With continued reference to fig. 10, fig. 10 is a schematic structural diagram of a display module 10 according to another embodiment of the utility model under a first viewing angle; in some embodiments, one side of the compression layer 4 is in contact with the edge of the cushioning layer 3, and the other side of the compression layer 4 is flush with the edge of the side of the edge portion 12 remote from the body portion 11; that is, the outer edge of the compression layer 4 is flush with the outer edge of the display panel 1; to increase the area of the buffer layer 3 and the compressive layer 4 covering the display panel 1, thereby improving the bending strength of the display module 10. Referring to fig. 10, when the display panel 1, the buffer layer 3, and the compression layer 4 are rectangular, the buffer layer 3, the compression layer 4, and the display panel 1 are disposed in a shape of a "back" in the orthographic projection in the stacking direction.

Of course, in other embodiments, as shown in fig. 2a, along the direction in which the edge portion 12 approaches the main body portion 11, one side of the compression layer 4 contacts the edge of the buffer layer 3, and the other side of the compression layer 4 is spaced from the edge of the side of the edge portion 12 away from the main body portion 11 by a distance of specifically 0.1mm to 2mm. Alternatively, as shown in fig. 2c, one side of the compression layer 4 is spaced from the edge of the buffer layer 3, and the other side of the compression layer 4 is spaced from the edge of the side of the edge portion 12 remote from the main body portion 11.

It should be noted that, the "interval setting" related to the present utility model means that any one of the two structures is not contacted, and any one of the two structures is set with a certain distance and defines a space. For example, the other side of the compression layer 4 is not in contact with each position of the edge portion 12 away from the edge of one side of the main body portion 11, and is spaced apart from the other side.

Wherein the thickness of the buffer layer 3 and the compressive layer 4 may be the same to increase the overall bending stiffness of the display module 10 as much as possible.

In some embodiments, the compressive layer 4 is a coating structure formed on the rim portion 12. I.e. the compression layer 4 may be formed by means of a coating material. In some embodiments, the coating structure may be a glass layer. I.e. the coating material is glass frit. According to the display module 10, the molten glass is coated on the edge area of the non-display surface of the display panel 1, which is not shielded by the buffer layer 3, so that the glass powder can be well fused with the non-display surface of the display panel 1 to strengthen the bonding strength between the compression-resistant layer 4 and the display panel 1, and the bending rigidity of the display module 10 is effectively improved.

The display module 10 provided by the embodiment of the utility model comprises a display panel 1, a buffer layer 3 and a compression-resistant layer 4; the display panel 1 includes a main body portion 11 and an edge portion 12 surrounding the main body portion 11; the buffer layer 3 is located in the main body area of the display panel 1 and is arranged on the non-display surface; the compression layer 4 is located in the edge area of the display panel and is arranged on the non-display surface, and the compression layer 4 is arranged on two sides of the buffer layer 3 along at least the first direction. In the above arrangement, the compression-resistant layer 4 is arranged in the area of the non-display surface of the display panel 1, which is not shielded by the buffer layer 3, and the compression-resistant layers 4 are arranged on two sides of the buffer layer 3 along at least the first direction, so as to increase the thickness of the display module 10 at the corresponding position, thereby increasing the moment of inertia of the display module 10 and effectively improving the bending resistance of the display module 10 along at least the first direction; and further reduces OCA deformation and OCA bubbles in the terminal test process.

In this embodiment, referring to fig. 11, fig. 11 is a schematic diagram of an electronic device according to an embodiment of the present utility model. There is provided an electronic device including the display module 10 according to the above-described embodiment. The specific structure and function of the display module 10 can be referred to the above related description, and will not be repeated here. The electronic device may be a product or a component with a display function, such as a mobile phone, a tablet computer, a notebook computer, a television, and the like. The electronic device further includes a motherboard, a control circuit, etc., and these structures are the same as or similar to those of the related display device, and specific reference may be made to related technologies, which are not described herein.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the utility model.

Claims (11)

1. A display module, comprising:

a display panel including a main body portion and an edge portion disposed around the main body portion;

the buffer layer is positioned in the main body area of the display panel and is arranged on the non-display surface;

the compression-resistant layer is positioned in the edge part area of the display panel and is arranged on the non-display surface; and the buffer layer is provided with the compression-resistant layer at least along two sides of the first direction.

2. The display module assembly of claim 1, wherein the display module assembly comprises,

the rim portion is disposed about a periphery of the body portion; the compressive layer covers the edge portion along a periphery of the edge portion.

3. The display module assembly of claim 2, wherein the display module assembly comprises,

the orthographic projection of the buffer layer on the display panel is completely overlapped with the main body part;

one side of the compression-resistant layer is in contact with the edge of the buffer layer, and the other side of the compression-resistant layer is flush with the edge of one side of the edge part away from the main body part.

4. The display module assembly of claim 2, wherein the display module assembly comprises,

the orthographic projection of the buffer layer on the display panel is completely overlapped with the main body part;

one side of the compression-resistant layer is arranged at intervals with the edge of the buffer layer; and the other side of the compression-resistant layer is arranged at intervals with the edge of one side of the edge part away from the main body part.

5. The display module assembly of claim 1, wherein the display module assembly comprises,

the buffer layer is foam; the display panel is a hard display panel.

6. The display module assembly of any one of claims 1-5, wherein,

the thickness of the compression-resistant layer is not greater than the thickness of the buffer layer.

7. The display module assembly of claim 6, wherein the display module assembly comprises,

the thickness of the compression-resistant layer is the same as that of the buffer layer.

8. The display module assembly of any one of claims 1-5, wherein,

the buffer layer and the compression-resistant layer are rectangular.

9. The display module assembly of any one of claims 1-5, wherein,

the compression-resistant layer is a coating structure formed on the edge portion.

10. The display module assembly of claim 9, wherein the display module assembly comprises,

the coating structure is a glass layer.

11. An electronic device comprising a display module according to any one of claims 1-10.