CN107861570B

CN107861570B - Display assembly and mobile terminal

Info

Publication number: CN107861570B
Application number: CN201711156370.4A
Authority: CN
Inventors: 林墨洲
Original assignee: Shenzhen Huantai Technology Co Ltd
Current assignee: Shenzhen Huantai Technology Co Ltd
Priority date: 2017-11-20
Filing date: 2017-11-20
Publication date: 2024-04-09
Anticipated expiration: 2037-11-20
Also published as: CN107861570A

Abstract

The invention discloses a display assembly and a mobile terminal. The display assembly includes a housing, a display screen, and a cover plate. The shell comprises a mounting plate, the mounting plate comprises a mounting surface, and supporting ribs are arranged at the corners of the mounting surface; the cover plate comprises a display area and a non-display area surrounding the display area, the non-display area comprises a corner part, the corner part is supported on the supporting rib, a gap is formed between the corner part and the mounting surface and between the corner part and the supporting rib, and the rest parts of the non-display area except the corner part are bonded with the mounting surface through first adhesive. In the display assembly and the mobile terminal provided by the embodiment of the invention, the corners, the mounting surface and the supporting ribs are surrounded to form gaps, and the glass edges are thinned, so that the corners are weak in shock resistance, and the corners are easy to absorb impact force to be damaged firstly when the cover plate is impacted, so that the impact energy is consumed, the impact force transmitted to the display area is less, the display area is difficult to damage, and the display effect of the mobile terminal and the operation experience of a user are ensured.

Description

Display assembly and mobile terminal

Technical Field

The present invention relates to the field of mobile terminals, and in particular, to a display assembly and a mobile terminal.

Background

In the related art, when a mobile terminal falls, a display area of a display screen cover plate is easy to break to generate cracks, so that the display effect of the mobile terminal and the operation experience of a user are affected.

Disclosure of Invention

The invention provides a display assembly and a mobile terminal.

The display assembly of the embodiment of the invention comprises a shell, a display screen and a cover plate. The shell comprises a mounting plate, wherein the mounting plate comprises a mounting surface, and supporting ribs are arranged at the corners of the mounting surface; the display screen is fixed on the mounting surface. The cover plate covers the display screen, the cover plate comprises a display area and a non-display area surrounding the display area, the display area corresponds to the display screen, the non-display area comprises a corner portion, the corner portion is supported on the supporting rib, a gap is formed between the corner portion, the mounting surface and the supporting rib, and other parts of the non-display area except the corner portion are bonded with the mounting surface through first viscose.

In some embodiments, the housing includes a side wall extending from an edge of the mounting plate, the mounting plate and the side wall define a receiving space, and the display screen and the cover plate are disposed in the receiving space.

In some embodiments, the thickness of the peripheral portion of the cover plate gradually decreases in a direction from the display region toward the non-display region.

In certain embodiments, the minimum thickness of the peripheral portion of the cover plate is less than 0.4mm.

In some embodiments, the brace is spaced from the edge of the corner by a distance of (1.5 mm,2 mm).

In some embodiments, the shape of the supporting rib is the same as the shape of the edge of the corner portion, and the supporting rib is arc-shaped.

In some embodiments, the cover plate includes a flexible sheet and a rigid sheet disposed in a stack with the flexible sheet, the flexible sheet being closer to the mounting surface than the rigid sheet.

In certain embodiments, the flexible sheet includes first and second opposed surfaces, the second surface being formed with a plurality of first protrusions;

the rigid sheet comprises a third surface and a fourth surface which are opposite, a plurality of second bulges are formed on the third surface, the third surface and the second surface are adhered and fixed through second viscose, and the second viscose is used for adhering the first bulges and the second bulges.

In some embodiments, the fourth surface is formed with a hardened layer.

The mobile terminal of the embodiment of the invention comprises a battery and the display assembly of the above embodiment, wherein the display screen is electrically connected with the battery.

In the display assembly and the mobile terminal provided by the embodiment of the invention, the corner part, the mounting surface and the supporting ribs are surrounded to form gaps, so that the shock resistance of the corner part is weak, when the cover plate is impacted, the corner part is easy to absorb impact force to be damaged first, and the impact energy is consumed, so that the impact force transmitted to the display area is less, the display area is difficult to damage, and the display effect of the mobile terminal and the operation experience of a user are ensured.

Additional aspects and advantages of the invention 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 invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an exploded view of a display assembly according to an embodiment of the present invention;

FIG. 2 is a schematic partial cross-sectional view of a display assembly according to an embodiment of the present invention;

fig. 3 is a schematic plan view of a mobile terminal according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a cover plate according to an embodiment of the present invention.

Description of main reference numerals:

display assembly 200, housing 210, mounting plate 212, mounting surface 213, support ribs 214, side walls 216, receiving space 218, display 220, mobile terminal 300;

the display device comprises a cover plate 100, a display area 110, a non-display area 120, corners 121, gaps 122, a first adhesive 123, a flexible sheet 10, a first surface 11, a second surface 12, a first protrusion 13, a rigid sheet 20, a third surface 21, a fourth surface 22, a second protrusion 23, a hardening layer 24 and a second adhesive 30.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, 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" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; 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 present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 and 2, a display assembly 200 according to an embodiment of the invention includes a housing 210, a display 220, and a cover plate 100. The housing 210 comprises a mounting plate 212, the mounting plate 212 comprises a mounting surface 213, and supporting ribs 214 are arranged at the corners of the mounting surface 213; the display 220 is secured to the mounting surface 213.

The cover plate 100 covers the display screen 220, the cover plate 100 comprises a display area 110 and a non-display area 120 surrounding the display area 110, the display area 110 corresponds to the display screen 220, the non-display area 120 comprises a corner portion 121, the corner portion 121 is supported on the supporting rib 214, a gap 122 is formed between the corner portion 121 and the mounting surface 213 and between the corner portion 121 and the supporting rib 214, and the rest parts of the non-display area 120 except the corner portion 121 are adhered to the mounting surface 213 through first adhesive 123.

Referring to fig. 3, the display assembly 200 can be applied to a mobile terminal 300. The mobile terminal 300 includes, but is not limited to, a mobile terminal such as a cell phone, tablet computer, television, etc. The mobile terminal 300 of the present invention is described in detail by taking a mobile phone as an example, but should not be construed as limiting the present invention. The mobile terminal 300 includes a battery (not shown) and a display assembly 200, the battery being connected to the display 220.

In the display assembly 200 and the mobile terminal 300 according to the embodiments of the present invention, since the corner 121, the mounting surface 213 and the supporting rib 214 are surrounded by the gap 122, the shock resistance of the corner 121 is weak, when the cover plate 100 is impacted, the corner 121 is easy to absorb the impact force and is damaged first, so that the impact energy is consumed, the impact force transmitted to the display area 110 is less, the display area 110 is difficult to be damaged, and the display effect of the mobile terminal and the operation experience of the user are ensured.

It can be understood that the first adhesive 123 and the supporting rib 214 make the connection strength between the other parts of the non-display area 120 except the corner 121 and the housing 210 greater, and the gap 122 is formed between the corner 121 and the mounting surface 213, so that the connection strength between the corner 121 and the housing 210 is smaller. When the mobile terminal 300 falls, the corner 121 of the cover 100 is most likely to touch the ground, so that the corner 121 can absorb the impact energy of the cover 100 to be damaged first, so that the impact energy is consumed, and the impact energy of the display area 110 is smaller, so that damage such as cracks can not be formed. It should be noted that the gap 122 is not filled with any object.

Specifically, the display screen 220 may be a flexible display screen, for example, the display screen 220 is an OLED (Organic Light-Emitting Diode) display screen. The OLED display screen has the excellent characteristics of self-luminescence, no backlight source, high contrast, thin thickness, wide viewing angle, high reaction speed, simpler structure and manufacturing process and the like, so that the thickness of the display component 200 can be further reduced by the flexible display screen, and the market demand is met. The OLED display screen comprises a substrate layer, a light-emitting layer and an encapsulation layer. The light-emitting layer is arranged on the substrate layer, and the packaging layer covers the light-emitting layer so as to avoid the light-emitting layer from contacting with air. The light emitting layer is capable of generating light to cause the OLED display to display information. Of course, the display 220 may be a liquid crystal display.

The shape and size of the display area 110 are respectively matched with the shape and size of the display screen 220, for example, the display area 110 and the display screen 220 are rectangular, and the width and length of the display area 110 are respectively equal to the width and length of the display screen 220.

The support ribs 214 may be integrally formed with the mounting plate 212. For example, the support ribs 214 are formed as a unitary structure with the mounting plate 212 by an injection molding process. The first adhesive 123 is, for example, black, so that light can be prevented from leaking out of one side of the display area 110.

In some embodiments, the housing 210 includes a sidewall 216 extending from an edge of the mounting plate 212, the mounting plate 212 and the sidewall 216 define a receiving space 218, and the display 220 and the cover 100 are disposed in the receiving space 218.

In this manner, the sidewall 216 may reduce the probability of the cover plate 100 hitting the ground, thereby protecting the cover plate 100 when the mobile terminal 300 falls.

In some embodiments, the thickness of the peripheral portion 102 of the cover plate 100 gradually decreases in a direction from the display region 110 toward the non-display region 120. In other words, the thickness of the peripheral portion 102 of the cover plate 100 gradually increases in the direction from the non-display area 120 toward the display area 110. It will be appreciated that the peripheral portion 102 of the cover plate 100 includes a corner portion 121.

In this way, the peripheral portion 102 of the cover 100 is light and thin, so that the edge of the corner 121 far from the display area 110 is easily damaged by absorbing the impact force, thereby avoiding the damage of the display area 110. In addition, this may make the user experience better when touching the edge of the cover plate 100.

In one example, the minimum thickness T of the peripheral portion 102 of the cover plate 100 is less than 0.4mm. For example, the minimum thickness T is 0.3mm, 0.25mm, or 0.2mm, etc. in size.

When the minimum thickness T of the peripheral portion 102 of the cover plate 100 is greater than or equal to 0.4mm, the cover plate 100 is made to have a large overall thickness dimension, thereby making the mobile terminal 300 bulky, disadvantageous for the experience, and the corner portion 121 is not easily absorbed in impact energy.

In some embodiments, the distance L of the brace 214 from the edge of the corner 121 is (1.5 mm,2 mm). It will be appreciated that the width of the gap 122 is also (1.5 mm,2 mm) at this time. For example, the distance L is 1.6mm, 1.7mm, 1.8mm or 1.9mm, so that the corner 121 not only can fully absorb the impact received by the cover plate 100, but also can make the size of the non-display area 120 smaller, which is beneficial to improving the screen ratio of the mobile terminal and making the user experience better.

In some embodiments, the shape of the support rib 214 is the same as the shape of the edge of the corner 121, and the support rib 214 is curved. In this way, the structure of the supporting rib 214 is compact in shape matching with the edge of the corner 121, which is beneficial to more uniform stress at each position of the corner 121, so that the impact force applied to the cover plate 100 can be absorbed better.

Referring to fig. 4, a cover sheet 100 according to an embodiment of the present invention includes a flexible sheet 10 and a rigid sheet 20 laminated with the flexible sheet 10. The flexible sheet 10 is closer to the mounting surface 213 than the rigid sheet 20.

In this manner, the flexible sheet 10 can absorb the impact to which the cover plate 100 is subjected, thereby improving the life of the cover plate 100. The flexible sheet 10 may be attached to the display 220. For example, the flexible sheet 10 is fixedly connected to the display screen 220 by optically transparent adhesive.

In certain embodiments, the flexible sheet 10 includes opposing first and second surfaces 11, 12, the second surface 12 being formed with a plurality of first protrusions 13. The rigid sheet 20 includes a third surface 21 and a fourth surface 22 opposite to each other, the third surface 21 is formed with a plurality of second protrusions 23, the third surface 21 and the second surface 12 are fixed by a second adhesive 30, and the second adhesive 30 adheres to the first protrusions 13 and the second protrusions 23.

In this way, the first protrusions 13 and the second protrusions 23 can increase the connection area of the flexible sheet 10 and the rigid sheet 20, so that the flexible sheet 10 and the rigid sheet 20 are firmly bonded.

In particular, the flexible sheet 10 has flexibility, that is, the flexible sheet 10 may be elastically deformed, for example, the flexible sheet 10 may be folded in half without being damaged after being folded in half. The second surface 12 and the third surface 21 are bonded by, for example, an optical adhesive OCA (Optically Clear Adhesive), which has the characteristics of high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, and ultraviolet resistance, so that the light transmittance of the cover plate 100 is better.

In certain embodiments, the flexible sheet 10 comprises a material comprising polymethyl methacrylate (Polymethyl Methacrylate, PMMA)) or polyethylene terephthalate (Polyethylene Terephthalate, PET) or Polycarbonate (PC); the rigid sheet 20 is made of glass.

This results in a flexible sheet 10 that is more flexible and a rigid sheet 20 that is more transparent. Specifically, the PMMA has the advantages of lower density, higher mechanical strength, uneasy breaking and the like, and the density of the PMMA is about 1150-1190kg/m ³ In the same size material, PMMA weighs only half of ordinary glass, and aluminum (which is a light metal) is 43%. PMMA has high strength, and the tensile and impact resistance of PMMA is 7-18 times higher than that of common glass. The tensile strength is 60-70 MPa, and the compressive strength is 120-140 MPa.

PET has the following advantages:

1) Has good mechanical property, impact strength which is 3-5 times that of other films (such as PC) and good folding endurance.

2) Oil resistance, fat resistance, olefine acid resistance, dilute alkali resistance and most solvents resistance.

3) Has excellent high and low temperature resistance, can be used for a long time within the temperature range of 120 ℃, can resist the high temperature of 150 ℃ when being used for a short time, can resist the low temperature of-70 ℃, and has little influence on the mechanical properties at high and low temperatures.

4) The permeability of gas and water vapor is low, and the gas-barrier, water, oil and odor performance is excellent.

5) High transparency, ultraviolet resistance and high lustrousness.

The PC has the following advantages:

1) The high-strength and high-impact-strength rubber has high elastic coefficient and wide use temperature range;

2) High transparency and free dyeing properties;

3) The molding shrinkage is low, and the dimensional stability is good;

4) The fatigue resistance is poor.

Thus, the use of the flexible sheet 10 made of PMMA or PET or PC allows the cover plate 100 to have better usability.

In certain embodiments, the flexible sheet 10 has a thickness of 0.05mm to 1mm; and/or

The rigid sheet 20 has a thickness of 0.5mm to 1.2mm.

For example, the thickness of the flexible sheet 10 is 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.12mm, 0.15mm, 0.18mm, 0.5mm, 0.8mm, 1mm, etc. in size. The thickness of the rigid sheet 20 is, for example, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm.

When the thickness of the flexible sheet 10 is less than 0.05mm, the anti-falling and anti-shock capabilities of the flexible sheet 10 are poor, and when the thickness of the flexible sheet 10 is greater than 1mm, the overall thickness of the cover plate 100 is made larger. In addition, when the thickness of the rigid sheet 20 is less than 0.5mm, the rigid sheet 20 has poor anti-falling and anti-vibration capabilities and is easy to break, and when the thickness of the rigid sheet 20 is greater than 1.2mm, the overall thickness of the cover plate 100 is larger, and related requirements of the market are not met.

In certain embodiments, the light transmittance of the flexible sheet 10 is greater than or equal to 90%; and/or

The light transmittance of the rigid sheet 20 is greater than or equal to 90%.

That is, the light transmittance of at least one of the flexible sheet 10 and the rigid sheet 20 is 90% or more, for example, the light transmittance of the flexible sheet 10 or the light transmittance of the rigid sheet 20 is 90%, 91%, 92%, 93%, 94%, or the like. Therefore, the light transmittance of the cover plate 100 is better, and the light emitted by the display screen 220 can be largely emitted out of the cover plate 100 after passing through the cover plate 100, so that the user can clearly view the content displayed by the display screen 220.

In some embodiments, the fourth surface 22 is formed with a hardened layer 24. In this way, the hardened layer 24 may improve scratch resistance of the cover plate 100. It should be noted that the fourth surface 22 faces away from the display 220 and faces towards the outside of the cover plate 100. When the display assembly 200 is a display assembly with a touch function, the user may perform a gesture operation on the fourth surface 22 to control the content displayed on the display screen 220. For example, when the user performs a click operation on the fourth surface 22, the display screen 220 may perform video playback or pause.

The hardened layer 24 may be formed by immersing the rigid sheet 20 in a curing liquid so that the rigid sheet 20 adheres to the curing liquid, and the curing liquid is dried. Of course, the hardened layer 24 may be formed by spraying the curing liquid on the rigid sheet 20.

Further, the thickness of the hardened layer 24 is 50 μm to 150 μm. For example, the thickness of the hardened layer 24 is 50 μm, 60 μm, 70 μm, 100 μm, 120 μm, or 150 μm, etc. in size. When the thickness of the hardened layer 24 is less than 50 μm, the hardness of the hardened layer 24 is insufficient, and when the thickness of the hardened layer 24 is greater than 150 μm, the overall thickness of the cover plate 100 is affected. Therefore, when the thickness of the hardened layer 24 is within the above range, the hardened layer 24 can enhance the hardness of the cover plate 100 and also can make the cover plate 100 thickness satisfy the thickness requirement.

Preferably, the hardness of the hardened layer 24 is greater than or equal to 5H. For example, the hardness of the hardened layer 24 is 5H, 5.1H, 5.2H, 5.5H, 6H, 7H, 8H, or the like.

In some embodiments, the first protrusion 13 is triangular or square in cross-section; and/or the second protrusion 23 has a triangular or square cross section.

Alternatively, at least one of the cross section of the first protrusion 13 and the cross section of the second protrusion 23 is triangular or square. This makes the first protrusion 13 and the second protrusion 23 easy to form.

As in the example of fig. 1, the plurality of first protrusions 13 and the plurality of second protrusions 23 are each square. Of course, in other embodiments, when the plurality of first protrusions 13 and the plurality of second protrusions 23 may each be triangular. At this time, the plurality of first protrusions 13 or the plurality of second protrusions 23 may form a zigzag shape.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative 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 invention. 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A display assembly, comprising:

the shell comprises a mounting plate, wherein the mounting plate comprises a mounting surface, supporting ribs are arranged at the corners of the mounting surface, and the supporting ribs and the mounting plate are of an integrated structure;

the display screen is fixed on the mounting surface; and

the cover plate covers the display screen, the cover plate comprises a display area and a non-display area surrounding the display area, the display area corresponds to the display screen, the non-display area comprises a corner portion, the corner portion is supported on the supporting rib, a gap is formed between the corner portion, the mounting surface and the supporting rib, and other parts of the non-display area except the corner portion are bonded with the mounting surface through first adhesive.

2. The display assembly of claim 1, wherein the housing includes a side wall extending from an edge of the mounting plate, the mounting plate and the side wall defining a receiving space, the display screen and the cover plate being disposed in the receiving space.

3. The display assembly of claim 1, wherein a thickness of the peripheral portion of the cover plate is gradually reduced in a direction from the display region toward the non-display region.

4. A display assembly according to claim 3, wherein the minimum thickness of the peripheral portion of the cover plate is less than 0.4mm.

5. The display assembly of claim 1, wherein the support rib is spaced from the edge of the corner portion by a distance of (1.5 mm,2 mm).

6. The display assembly of claim 1, wherein the ribs have the same shape as the edges of the corners, and wherein the ribs are arcuate.

7. The display assembly of claim 1, wherein the cover plate comprises a flexible sheet and a rigid sheet disposed in a stack with the flexible sheet, the flexible sheet being closer to the mounting surface than the rigid sheet.

8. The display assembly of claim 7, wherein the flexible sheet includes first and second opposed surfaces, the second surface being formed with a plurality of first protrusions;

9. The display assembly of claim 8, wherein the fourth surface is formed with a hardened layer.

10. A mobile terminal, comprising:

a battery;

the display assembly of any one of claims 1-9, the display screen electrically connected to the battery.