CN112449033B

CN112449033B - Electronic equipment, display screen assembly and display screen cover plate

Info

Publication number: CN112449033B
Application number: CN201910817403.8A
Authority: CN
Inventors: 李敬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2023-04-14
Anticipated expiration: 2039-08-30
Also published as: CN112449033A

Abstract

The application provides an electronic device, a display screen assembly and a display screen cover plate; the display screen cover plate comprises a main body part, a first bending part, a second bending part and a first connecting part; the first bending part and the second bending part are respectively and integrally extended with two adjacent side edges of the main body part, and the first connecting part is connected between the first bending part and the second bending part and is integrally extended with the main body part corresponding to the corner position of the main body part; the first bending part, the second bending part and the first connecting part bend and extend towards the same side of the main body part; the radius of curvature of the first connecting portion is larger than the radius of curvature of the first curved portion and the second curved portion. The electronic equipment, display screen subassembly and display screen apron that this application embodiment provided through the curvature structural design that varies at the fillet position for display module assembly can normally be attached and do not take place extrusion, fold and optical cement bubble scheduling problem in apron fillet position.

Description

Electronic equipment, display screen assembly and display screen cover plate

Technical Field

The invention relates to the technical field of electronic equipment structures, in particular to electronic equipment, a display screen assembly and a display screen cover plate.

Background

Along with electronic equipment's such as cell-phone development, in appearance, the requirement that accounts for the ratio to the screen is more and more high, account for the ratio in order to promote the screen of complete machine, mainly lie in reducing the peripheral black limit width of screen, do not have the black limit effect in order to realize the complete machine at present, propose adopting the crooked (the display screen is the structure of crooked cambered surface all around) mode on four sides, utilize the crooked mode on four sides to hide the black limit width in the side promptly, with respect to the prior art, the difficult point that it exists lies in the attached of the big degree of depth with the display screen apron of the unable completion of display module assembly of fillet position, and attached display module in display screen apron fillet position appears piling up and fold scheduling problem easily, and then influence the normal demonstration of display module.

Disclosure of Invention

In one aspect, the embodiment of the present application provides a display screen cover plate, where the display screen cover plate includes a main body portion, a first bending portion, a second bending portion, and a first connecting portion; the first bending part and the second bending part respectively extend integrally with two adjacent side edges of the main body part, and the first connecting part is connected between the first bending part and the second bending part and extends integrally with the main body part corresponding to the corner position of the main body part; the first bending portion, the second bending portion, and the first connecting portion are bent and extended toward the same side of the main body portion; a radius of curvature of the first connection portion is greater than radii of curvature of the first curved portion and the second curved portion.

On the other hand still provides a display screen subassembly in this application embodiment, the display screen subassembly includes display module assembly and any one in the above-mentioned embodiment the display screen apron, the display module assembly pastes and locates the lateral surface of flexion and the connecting portion orientation of display screen apron.

Further, an embodiment of the present application further provides an electronic device, where the electronic device includes a housing and the display screen assembly described in the foregoing embodiment; the shell is connected with a display screen cover plate of the display screen assembly and jointly encloses to form an accommodating space, and a display module of the display screen assembly is arranged in the accommodating space.

The embodiment of the application provides an electronic equipment, display screen subassembly and display screen apron, through the curvature structural design that varies at the fillet position to through design curvature radius transition district between four sides and fillet position, realize the minimum curvature radius of four sides to the smooth transition of fillet position minimum curvature radius of display screen apron internal surface, make the display module assembly can normally be attached and do not take place extrusion, fold and optics and glue bubble scheduling problem at apron fillet position.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of an embodiment of an electronic device according to the present application;

FIG. 2 is a schematic diagram of a structure of an electronic device in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of the electronic device in FIG. 1 with a partially disassembled structure;

FIG. 4 is a schematic front view of the display panel cover in the embodiment of FIG. 1;

FIG. 5 is a schematic view of the display panel of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the display panel of FIG. 4 from a further perspective;

FIG. 7 is an enlarged schematic view of the structure at A in FIG. 4;

FIG. 8 is a schematic diagram illustrating a partial structure of a display module engaged with a cover plate of a display screen according to an embodiment;

FIG. 9 is a schematic view of a portion of a display screen assembly according to the present application;

FIG. 10 is a schematic, exploded view of the housing;

FIG. 11 is a partial schematic view of an electronic device;

FIG. 12 is a schematic view of a display panel cover according to another embodiment of the present application;

FIG. 13 is a schematic cross-sectional view of the structure at X-X in FIG. 12;

FIG. 14 is a schematic cross-sectional view of the structure at Y-Y in FIG. 12;

FIG. 15 is a schematic cross-sectional view of the structure at B-B in FIG. 12;

FIG. 16 is a schematic view of the inner surface of the cover plate of FIG. 12;

FIG. 17 is a schematic cross-sectional view of a portion of one embodiment of a display screen assembly;

FIG. 18 is a schematic view of a display cover according to another embodiment of the present application;

FIG. 19 is a schematic cross-sectional view of the structure at C-C in FIG. 18;

FIG. 20 is a schematic cross-sectional view of the structure of FIG. 18 at D-D;

FIG. 21 is a partial schematic view of one embodiment of a display screen assembly;

FIG. 22 is a schematic flow chart illustrating an embodiment of a bonding method according to the present application;

FIG. 23 is a schematic structural view showing a state where the module is attached to the front plane.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some examples, not all examples, and all other examples obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

It should be noted that the electronic device in the embodiment of the present application mainly has a structure with four curved surfaces, three curved surfaces, or two curved surfaces for the display screen, where the curved edge of the display screen has at least two adjacent curved portions, and the corner position formed by the adjacent curved portions also needs to be a curved connecting portion structure, and mainly solves the problems of the attachment and the display effect of the display screen cover plate and the display module at the connecting portion position between the adjacent curved portions.

Referring to fig. 1 to fig. 3 together, fig. 1 is a schematic diagram of an overall structure of an embodiment of an electronic device of the present application, and fig. 2 is a schematic diagram of an axial side structure of the electronic device in the embodiment of fig. 1; fig. 3 is a schematic diagram of a partially disassembled electronic device in the embodiment of fig. 1. It should be noted that the electronic device in the present application may include an electronic device with a curved display screen structure, such as a mobile phone, a tablet computer, a notebook computer, and a wearable device. This application to electronic devices includes, but is not limited to, the following structures: a display screen assembly 10 and a housing 20; the display panel assembly 10 includes a display panel cover 100 and a display module 200.

Specifically, the display module 200 is attached to the inner surface of the display cover 100. The shell 20 is connected with a display screen cover plate 100 of the display screen assembly 10 and jointly encloses to form an accommodating space 101, and a display module 200 of the display screen assembly 10 is arranged in the accommodating space 101. The display screen cover plate 100 may be made of glass; the display module 200 may be an OLED flexible display screen.

Referring to fig. 4 to 6 together, fig. 4 is a schematic structural front view of the display panel cover in the embodiment of fig. 1, fig. 5 is a schematic structural view of another viewing angle of the display panel cover in fig. 4, fig. 6 is a schematic structural view of another viewing angle of the display panel cover in fig. 4, and the display panel cover 100 in this embodiment includes a main body 190, a first bending portion 110, a second bending portion 120, and a first connecting portion 150. The main body 190 may have a planar structure, the first bent portion 110 and the second bent portion 120 may be respectively extended integrally with two adjacent sides of the main body 190, and the first connecting portion 150 may be connected between the first bent portion 110 and the second bent portion 120 and may be extended integrally with the main body 190 corresponding to a corner position of the main body 190 (i.e., a connection position of adjacent sides of the main body 190, the same applies hereinafter). The display screen cover plate 100 may be formed by bending integrally, or may be formed by CNC machining, or by combining hot bending and CNC, which is not limited herein.

In one embodiment, the first bending portion 110, the second bending portion 120 and the first connecting portion 150 extend in a bending manner toward the same side of the main body portion 190; that is, the first bent portion 110, the second bent portion 120, and the first connection portion 150 are bent toward the housing 20. The first curved portion 110, the second curved portion 120, and the first connection portion 150 may have the same radius of curvature. Certainly, in some other embodiments, the curvature radii of the first curved portion 110, the second curved portion 120 and the first connecting portion 150 may be different, for example, the curvature radius of the first connecting portion 150 is greater than the curvature radii of the first curved portion 110 and the second curved portion 120, so that the structure can reduce the difficulty in attaching the display module at the position of the first connecting portion 150.

Referring to fig. 7, fig. 7 is an enlarged view of a structure shown in fig. 4 a, wherein a width of the first connecting portion 150 is smaller than widths of the first curved portion 110 and the second curved portion 120. In one embodiment, the first connecting portion 150 in this embodiment has two ends respectively connected with the first bending portion 110 and the second bending portion in a smooth transition manner, the first connecting portion 150 has a structure with two wide ends and a narrow middle, the width W1 of the two ends respectively connected with the first bending portion 110 and the second bending portion 120 of the first connecting portion 150 is greater than the width W2 of the middle, and the width gradually decreases from the two ends to the middle.

Referring to fig. 8, fig. 8 is a schematic view of a partial structure of a display module and a display panel cover plate in an embodiment, where a dotted line represents a boundary of the display module and a solid line 881 represents a boundary of the display panel cover plate. In the conventional art, a structure of a panel cover is generally formed by hot bending a glass plate, in which the bending angles and widths of the bending edges of the respective sides and corner positions of the panel cover are the same, as shown in fig. 8. Display module assembly with the display screen apron laminating process that has the kink, for guaranteeing to show after the display module assembly laminating normally (guarantee that the bight position can not appear the fold promptly, pile up or tear the circumstances such as), the size L1 of the border line apart from display screen apron kink and plane portion at the edge of the display module assembly of bight position needs to be controlled within the scope of predetermineeing, for example within 0.7mm.

It can be understood that in the embodiment shown in fig. 8, after the display module is attached to the cover plate, the size of the black edge is at least the area 88 between the dashed line boundary 882 of the display module and the solid line boundary 883 of the cover plate of the display screen, and it is obvious from the figure that the black edge near the rounded corner is very large, which greatly affects the display effect and limits the improvement of the screen occupation ratio.

Referring to fig. 9, fig. 9 is a schematic view of a partial structure of a display panel assembly of the present application, in fig. 9, a dotted line 991 represents a boundary of a display module, and a solid line 992 represents a boundary of a display panel cover plate. The display front side of the whole machine has larger screen ratio, and the display effect is better.

In one embodiment, the minimum distance L2 between the edge of the display module 200 and the corresponding corner of the main body 190 of the display cover 100 is not greater than 0.7mm. Specifically, the thickness can be 0.7mm, 0.6mm, 0.5mm, 0.3mm, etc., so as to ensure that the display module 200 has a good attaching effect (without wrinkling, tearing or stacking) at the corner.

Referring to fig. 3, the display module 200 of the present embodiment is attached to a side surface of the display cover 100 facing the bending portion and the connecting portion, i.e. an inner surface of the display cover 100.

In an embodiment, please refer to fig. 4 to 6, the main body 190 in the present embodiment is a rectangular structure, and the display panel cover 100 further includes a third bending portion 130, a fourth bending portion 140, a second connecting portion 160, a third connecting portion 170, and a fourth connecting portion 180. Wherein the third bending portion 130 and the first bending portion 110 are respectively integrally extended from two opposite sides of the main body 190; the fourth bending portion 140 and the second bending portion 120 are integrally extended from opposite sides of the body 190. The second connection portion 160, the third connection portion 170, and the fourth connection portion 180 are disposed corresponding to one corner of the main body 190; the second connecting portion 160 is connected between the second bending portion 120 and the third bending portion 130; the third connecting portion 170 is connected between the third bending portion 130 and the fourth bending portion 140; the fourth connection portion 180 is connected between the fourth bending portion 140 and the first bending portion 110; the first curved portion 110, the second curved portion 120, the third curved portion 130, the fourth curved portion 140, the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180 are curved and extend toward the same side of the body portion 190. It should be noted that the terms "first", "second" and "third" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present embodiment, a display panel cover with a rectangular structure is taken as an example for explanation, the main body 190 of the display panel cover 100 has a planar structure, rounded corners 191 are respectively disposed at four corner positions of the main body 190 corresponding to the connecting portions (the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180) (see fig. 7), and a radius of the rounded corner 191 is not greater than 3mm. So that the display module 200 can be better attached to the display cover 100 at the corner position. In some other embodiments, the display cover may have other shapes, and the shape of the display module is the same, which is not further described herein.

In one embodiment, the widths of the first curved portion 110, the second curved portion 120, the third curved portion 130, and the fourth curved portion 140 are the same and greater than the widths of the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180. The second connection portion 160, the third connection portion 170, and the fourth connection portion 180 have a similar structure to the first connection portion 150. Specifically, the width of both ends of the second connection part 160 connected to the second bending part 120 and the third bending part 130, respectively, is greater than the width of the middle part; the width of both ends of the third connection part 170 connected to the third bending part 130 and the fourth bending part 140 is greater than the width of the middle part; the width of the fourth connecting portion 180 is greater than the width of the middle portion of the fourth connecting portion 140 and the first connecting portion 110, and please refer to the related diagram and the structural description of the first connecting portion 150 in fig. 6.

In one embodiment, in the present embodiment, the first curved portion 110, the second curved portion 120, the third curved portion 130, the fourth curved portion 140, the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180 have the same radius of curvature. It should be noted that, in some other embodiments, the curvature radii of the first curved portion 110, the second curved portion 120, the third curved portion 130, the fourth curved portion 140, the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180 may be different, or the curvature radii of the first curved portion 110, the second curved portion 120, the third curved portion 130, and the fourth curved portion 140 may be the same, and the curvature radii of the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180 may be the same, or the curvature radii of the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180 may be designed to be larger than the curvature radii of the first curved portion 110, the second curved portion 120, the third curved portion 130, and the fourth curved portion 140.

Referring to fig. 3 and 10 together, fig. 10 is a schematic view illustrating a disassembled structure of a housing, in which the housing 20 in this embodiment includes a middle frame 300 and a rear cover 400, and the rear cover 400 and the display screen cover plate 100 are respectively connected to two opposite sides of the middle frame 300 and jointly surround to form an accommodating space 101.

Referring to fig. 10 and 11 together, fig. 11 is a partial schematic structural diagram of an electronic apparatus, in which an embodiment of the middle frame 300 includes a middle plate 310 and a side frame 320, the middle plate 310 includes a plane support portion 311 and a curved support portion 312, the plane support portion 311 correspondingly supports the main body 190 of the display cover 100 and the plane portion of the display module 200, and the curved support portion 312 is disposed around the plane support portion 311 and correspondingly supports the curved portions (including the first curved portion 110, the second curved portion 120, the third curved portion 130, and the fourth curved portion 140) of the display cover 100 and the curved portion of the display module 200. The frame 320 and the middle plate 310 extend integrally around the middle plate, and include a decoration portion 321 and a protrusion portion 322, the decoration portion 321 is used as a side frame of the electronic device, and is sandwiched between the rear cover 400 and the curved portion of the display screen cover plate 100 to perform a decoration function; the protruding portions 322 are located at four corners of the middle plate 310 and are disposed corresponding to the corners of the display screen cover plate 100, the shape and contour of the protruding portions 322 are adapted to the connecting portions (the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180) of the display screen cover plate 100, and the protruding portions 322 are connected to the connecting portions (the first connecting portion 150 illustrated in fig. 11) of the display screen cover plate 100 in an aligned fit manner; that is, the protruding portion 322 abuts against the outer side of the connecting portion of the display panel cover 100, and the size of the connecting portion narrower than the bending portion is filled (compensated) in the thickness direction of the electronic device, so that the corner portions of the electronic device are connected in a smooth transition manner, and the overall contour is more rounded. The connecting portion of the display cover 100 is connected to the protruding portion 322 at a large fillet transition structure. The decorative portion 321 of the middle plate 310 is coupled to the curved portion (the first curved portion 110 illustrated in fig. 11) of the display panel cover 100. In order to reduce the width of the black edge at the fillet position, the irregular structure is made at the fillet position of the display screen cover plate 100, and the convex part 322 of the middle frame 300 is matched with the unfilled corner position of the display screen cover plate 100 to make the width of the black edge uniform at the fillet position, and the convex part 322 can also play a role in protecting the corner part (connecting part position) of the display screen cover plate 100.

In one embodiment, with reference to fig. 10, the rear cover 400 of the present embodiment includes a main rear cover body 410 and a bending edge 420, the bending edge 420 is disposed around the main rear cover body 410 and is bent toward the middle plate 300, and the main rear cover body 410 is connected to the middle plate 310 of the middle plate 300 along the bending edge 420 around the circumference. By arranging the rear cover 400 (i.e., the battery cover) to have a four-side bending structure, the electronic device is more round and has a cobblestone appearance.

The embodiment of the application provides electronic equipment, display screen subassembly and display screen apron, based on the crooked structure in four sides, carry out special-shaped structural design in the fillet position, realize the narrow black limit of fillet position for the expressive force of complete machine display effect is better.

The four-side bending has become a trend of future whole machine design schemes, and has the main advantages that the width of the black edge around the whole machine can be reduced (the black edge part is hidden in the side surface curved surface), the whole machine can be shaped roundly by the four-side bending scheme, and the attractiveness is greatly improved. However, with present technology, its main degree of difficulty lies in realizing the laminating of crooked display module assembly in four sides and display screen apron, and the focus of its degree of difficulty lies in that flexible display module assembly receives material extrusion or tensile easily when the laminating of fillet position, leads to the Panel damaged (Panel is inside to be some organic layers, does not have the basic unit to constitute, and its material is very fragile, extrudees or tensile all is broken easily) thereby leads to showing unusually.

For solving the above problem, the scheme that aforementioned embodiment adopted does for making the fillet position little, and then reduces the laminating area between fillet position display module assembly and the display screen apron to reduce the destroyed risk of display module assembly. The scheme of this embodiment provides a new design, under the unchangeable circumstances of assurance flexion curvature radius, increases the curvature radius of fillet department connecting portion, and then reduces the display module assembly in the bonding degree of difficulty of fillet department and display screen apron to reduce the destroyed risk of display module assembly. That is, the design of the scheme of this embodiment needs to ensure the minimum curvature radius of the curved portion, and the curvature radius of the inner surface of the curved portion is made to be the minimum as much as possible, because the smaller curvature radius of the inner surface can bring a more rounded shape, the whole machine is more beautiful. The thinking of this embodiment technical scheme is that, the fillet position is in order not to make panel etc. because the fillet transition is violent, and we hope to do big a little at the minimum curvature radius of fillet position, based on above-mentioned scheme, provides a structural design of display screen apron, satisfies four sides black edge minimizing and can show normal technical scheme behind the fillet position laminating display module.

Fig. 12 to 15 are structural schematic views of another embodiment of a display panel cover plate according to the present application, fig. 13 is a schematic cross-sectional view of a structure at X-X in fig. 12, fig. 14 is a schematic cross-sectional view of a structure at Y-Y in fig. 12, and fig. 15 is a schematic cross-sectional view of a structure at B-B in fig. 12. The display panel cover 100 in this embodiment may also be made of glass. The display panel cover 100 includes a main body 190, a first curved portion 110, a second curved portion 120, and a first connecting portion 150. The main body 190 may have a planar structure, the first bent portion 110 and the second bent portion 120 may be integrally extended from two adjacent sides of the main body 190, and the first connection portion 150 may be connected between the first bent portion 110 and the second bent portion 120 and integrally extended from the main body 190 corresponding to a corner of the main body 190. The display screen cover plate 100 may be formed by bending integrally, or may be formed by CNC machining, or by combining hot bending and CNC, which is not limited herein. It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.

In one embodiment, the first bending portion 110, the second bending portion 120 and the first connecting portion 150 extend toward the same side of the main body portion 190; that is, the first bending portion 110, the second bending portion 120 and the first connecting portion 150 are bent toward the housing (regarding the structure of the electronic device as a whole, please refer to the related drawings of the foregoing embodiments). In one embodiment, a radius of curvature R1 of the first connecting portion 150 is greater than a radius of curvature R2 of the first curved portion 110 and the second curved portion 120 (see fig. 13 to 15). In the present embodiment, the radii of curvature of the first curved portion 110 and the second curved portion 120 are the same, of course, in some other embodiments, the radii of curvature of the first curved portion 110 and the second curved portion 120 may be different. Note that, in the present embodiment, the curvature radius is the curvature radius of the inner surface of the display panel cover 100, that is, the curvature radius of the first curved portion 110, the second curved portion 120, and the first connecting portion 150 that are bent toward one side.

Referring to fig. 15, in the present embodiment, the outer surface curvature radii of the first curved portion 110, the second curved portion 120 and the first connecting portion 150 of the display cover 100 may be the same, and the bonding condition between the display module and the display cover is improved by changing the inner surface curvature radius. The radius of curvature of the outer surface of the first curved portion 110, the second curved portion 120 and the first connecting portion 150 of the cover plate 100 may be smaller, for example, less than 2.5mm, and the inner surface may be larger, for example, 3.5mm. Further, the manner of changing the radius of curvature of the inner surface may be changing the thickness. In one embodiment, the thickness T1 of the first connecting portion 150 in this embodiment is greater than the thicknesses T2 of the first bending portion 110, the second bending portion 120 and the main body portion 190. The thickness T1 herein refers to the maximum thickness of the first connection part 150, because the thickness of the first connection part 150 may be varied, the thickness near the edges and the connection positions with the first and second

bent parts

110 and 120 may be smaller, and the thickness at the middle position may be larger. And the thickness T2 of the first and second

bent portions

110 and 120 and the main body portion 190 may be uniform. The schematic cross-sectional view (the left part in fig. 15) of the display screen cover plate 100 at the fillet position can be known, the display screen cover plate 100 is designed by the glass with different thicknesses (the thickness T1 at the first connecting part 150 is greater than the thickness T2 of the first bending part 110, the second bending part 120 and the main body part 190), the front appearance display area of the display screen can be more mellow through the ingenious design, the cobblestone effect is achieved, namely, the radian of the outer surface of the display screen cover plate 100 can be steeper (the minimum curvature radius is smaller), the displayed 3D effect is better, and the display screen cover plate has deep feeling.

Referring to fig. 16, fig. 16 is a schematic structural view of the inner surface side of the cover plate of the display panel in fig. 12, in this embodiment, curvature radius transition areas 192 are respectively disposed between the first connecting portion 150 and the first curved portion 110, between the second curved portion 120 and between the main body portion 190, and the curvature radius of the curvature radius transition areas 192 gradually increases from the curved portions (the first curved portion 110 and the second curved portion 120) to the connecting portion (the first connecting portion 150), so that the curved portions and the main body portion 190 are smoothly connected in a transition manner.

The main body 190 is a planar structure, the curvature radius of the first bending portion 110 and the curvature radius of the second bending portion 120 can be 3mm or less than 3mm, and the number of black edges on four sides of the whole display screen cover plate is reduced as much as possible under the condition that the laminating process between the display module and the display screen cover plate is met. The radius of curvature of the first connecting portion 150 may be 6mm or more than 6mm, such as 8mm, 10mm or 12 mm. The curvature radius of curvature radius transition zone 192 gradually changes to the 10mm with the connecting portion junction from the 3mm with flexion hookup location department, and the purpose makes the internal surface of display screen apron 100 do slowly, and reduction flexible display module that can be very big produces the emergence that extrudees the fold or the tearing risk and reduces the flexible display module of fillet position and OCA between the first connecting portion 150 of display screen apron 100 and produce the bubble problem at fillet position (first connecting portion 150) laminating in-process.

In one embodiment, a gradual curvature radius change region 193 is also disposed between the curved portions (the first curved portion 110 and the second curved portion 120) and the main body 190, the gradual curvature radius change region 193 is disposed near an end portion where the curved portion is connected to the connecting portion, and the gradual curvature radius change region 193 is smoothly connected to the curvature radius transition region 192. The purpose of the gradual radius of curvature region 193 is to provide a better smooth transition connection between the curved portion, the main body portion, and the connecting portion.

In an embodiment, referring to fig. 12 to 15, the main body 190 in the present embodiment is a rectangular structure, and the display panel cover 100 further includes a third bending portion 130, a fourth bending portion 140, a second connecting portion 160, a third connecting portion 170, and a fourth connecting portion 180. Wherein the third bending portion 130 and the first bending portion 110 are respectively integrally extended from two opposite sides of the main body 190; the fourth bent portion 140 and the second bent portion 120 are integrally extended from opposite sides of the body 190. The second connection portion 160, the third connection portion 170, and the fourth connection portion 180 are disposed corresponding to one corner of the main body 190; the second connecting portion 160 is connected between the second bending portion 120 and the third bending portion 130; the third connecting portion 170 is connected between the third bending portion 130 and the fourth bending portion 140; the fourth connection portion 180 is connected between the fourth bending portion 140 and the first bending portion 110; the first curved portion 110, the second curved portion 120, the third curved portion 130, the fourth curved portion 140, the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180 are curved and extend toward the same side of the body portion 190.

In one embodiment, the first curved portion 110, the second curved portion 120, the third curved portion 130, and the fourth curved portion 140 in this embodiment have the same radius of curvature, R2, and are smaller than the radius of curvature R1 of the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180. Curvature radius transition areas 192 are arranged between the adjacent bending portions and the main body portion 190 and the connecting portions (including the first connecting portion 150, the second connecting portion 160, the third connecting portion 170 and the fourth connecting portion 180), and the curvature radius of the curvature radius transition areas 192 gradually increases from the bending portions to the connecting portions, so that the bending portions and the main body portion and the connecting portions are connected in a smooth transition mode. In addition, as shown in fig. 16, in the present embodiment, a gradual curvature radius change region 193 is also disposed between the bending portions (the first bending portion 110, the second bending portion 120, the third bending portion 130, and the fourth bending portion 140) and the main body 190, the gradual curvature radius change region 193 is disposed near an end portion where the bending portions are connected to the connecting portion, and the gradual curvature radius change region 193 is smoothly connected to the curvature radius transition region 192. The purpose of the gradual change in radius of curvature region 193 is to provide a better smooth transition connection between the curved portion, the main body portion, and the connecting portion.

In one embodiment, the thicknesses of the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180 are all the same, i.e., T1 (see fig. 15), and are all greater than the thicknesses T2 of the first curved portion 110, the second curved portion 120, the third curved portion 130, the fourth curved portion 140, and the main body portion 190. It should be noted that the thickness T1 herein refers to the maximum thickness of the first connecting portion 150, the second connecting portion 160, the third connecting portion 170 and the fourth connecting portion 180, because the thickness of the connecting portions may be varied, the thickness may be smaller near the edges and the connecting portion with the bending portion, and the thickness may be larger at the middle portion. And the thicknesses T2 of the first, second, third, and fourth

bent parts

110, 120, 130, 140, and the body part 190 may be uniform.

In addition, an embodiment of the present application further provides a display screen assembly, please refer to fig. 17, fig. 17 is a schematic partial sectional view illustrating a structure of an embodiment of the display screen assembly, the display screen assembly 10 includes a display module 200 and a display screen cover plate 100, and the display module 200 may be attached to a side surface of the display screen cover plate 100 facing a bending portion and a connecting portion through an optical adhesive. The display module 200 may be an OLED flexible display structure, and may specifically include a substrate, a Panel layer, an auxiliary material layer, and the like, and in addition, a polarizing film and other structures may be further interposed between the display module 200 and the display screen cover plate 100, and details regarding the detailed stacked structure of the display module 200 are not described herein. In addition, please refer to the related description of the foregoing embodiments for the detailed structure of the electronic device in this embodiment, which is not repeated herein.

The embodiment of the application provides an electronic equipment, display screen subassembly and display screen apron, through the curvature structural design that varies in the fillet position to through design curvature radius transition district between four sides and fillet position, realize the minimum curvature radius of four sides to the smooth transition of the minimum curvature radius of fillet position of display screen apron internal surface, make display module assembly can normally be attached and do not take place extrusion, fold and optical cement bubble scheduling problem in apron fillet position.

In the previous embodiment, the radius of curvature of the connecting portion is increased by increasing the thickness of the connecting portion at the corner portion, and in the present embodiment, the radius of curvature of the connecting portion is also increased, but the thickness of the connecting portion is decreased.

Referring to fig. 18 to 20, fig. 18 is a schematic structural view of a display screen cover plate according to another embodiment of the present application, and fig. 19 is a schematic structural cross-sectional view at C-C in fig. 18; fig. 20 is a schematic cross-sectional view of the structure at D-D in fig. 18. The display panel cover 100 in this embodiment may also be made of glass. The display panel cover 100 includes a main body 190, a first curved portion 110, a second curved portion 120, and a first connecting portion 150. The main body 190 may have a planar structure, the first bent portion 110 and the second bent portion 120 may be integrally extended from two adjacent sides of the main body 190, and the first connecting portion 150 may be connected between the first bent portion 110 and the second bent portion 120 and integrally extended from the main body 190 corresponding to a corner of the main body 190. The display screen cover plate 100 may be formed by bending integrally, and may be formed by CNC machining, or by combining hot bending and CNC machining, which is not limited herein.

Referring to fig. 19, in the present embodiment, the outer surface curvature radii of the first curved portion 110, the second curved portion 120 and the first connecting portion 150 of the display cover 100 may be the same, and the bonding condition between the display module and the display cover is improved by changing the inner surface curvature radius. The radius of curvature of the outer surface of the first curved portion 110, the second curved portion 120 and the first connecting portion 150 of the cover plate 100 may be smaller, for example, less than 2.5mm, and the inner surface may be larger, for example, 3.5mm. Further, the manner of changing the radius of curvature of the inner surface may be changing the thickness. In one embodiment, the thickness T3 of the first connecting portion 150 in this embodiment is smaller than the thicknesses T4 of the first bending portion 110, the second bending portion 120 and the main body portion 190. The thickness of the first connection portion 150 may vary, and the thickness T3 referred to herein means the maximum thickness of the first connection portion 150; in some embodiments, the thickness of the first connecting portion 150 may be uniform. The thickness T3 herein refers to the thickness of the general location of the first connection portion 150 (not the connection with the first bent portion 110, the second bent portion 120, and the main body portion 190).

Referring to fig. 21, fig. 21 is a partial schematic structural diagram of an embodiment of a display screen assembly, in an embodiment, the display screen assembly 10 includes a display module 200 and a display screen cover plate 100, and the display module 200 is attached to a side surface of the display screen cover plate 100 facing a bending portion and a connecting portion, as shown in fig. 21.

The first connection portion 150 of the display panel cover plate 100 is respectively connected with the main body portion 190, the first bending portion 110 and the second bending portion 120 in a smooth transition manner, and the thickness of the first connection portion 150 gradually decreases along the connection edge with the main body portion 190, the first bending portion 110 and the second bending portion 120 in a direction away from the connection edge, that is, gradually decreases in a direction toward the edge of the first connection portion 150. The thickness of the first connection portion 150 is a maximum thickness T3 at a connection edge position with the main body portion 190, the first bent portion 110, and the second bent portion 120. And the thickness T4 of the first and second

curved portions

110 and 120 and the main body portion 190 may be uniform. As can be seen from the schematic cross-sectional view (fig. 21) of the display panel cover 100 at the rounded position, the display panel cover 100 is made of glass with different thicknesses (the thickness T3 at the first connecting portion 150 is smaller than the thicknesses T4 of the first bending portion 110, the second bending portion 120 and the main body portion 190), and forms an escape space on the inner surface of the first connecting portion 150 and increases the radius of curvature of the inner surface of the first connecting portion 150. In order to improve the bad wrinkles of the four-curved display screen corners, the four corners of the display screen cover plate 100 with the four curved surfaces are thinned, the thinned space is in smooth transition, and the four corners of the flexible display module 200 (the structure with the hatching in fig. 21) are in the space with the redundant shrinkage deformation during the attachment, so that the bad wrinkles of the attachment are improved. The general thickness of the display panel cover 100 (i.e. the thickness T4 of the first bending portion 110, the second bending portion 120, and the main portion 190) is about 0.55mm, and the thickness of the four corners of the display panel cover 100 (i.e. the thickness T3 of the first connecting portion 150) can be about 0.2mm, so as to ensure the glass strength of the edges of the four corners of the display panel cover 100; and the change of the whole thickness part needs smooth transition, so that the display effect is normal after the lamination.

In the related art, a structure of a display panel cover plate is generally formed by hot bending a glass plate, wherein the bending angles and thicknesses of each side edge and corner position of the display panel cover plate are the same, so that the display module at the corner position cannot be attached to the connecting portion of the display panel cover plate, or the display module is wrinkled, stacked or torn after the display module is attached.

In an embodiment, with reference to fig. 18 to fig. 20, the main body 190 in the present embodiment is a rectangular structure, and the display panel cover 100 further includes a third bending portion 130, a fourth bending portion 140, a second connecting portion 160, a third connecting portion 170, and a fourth connecting portion 180. Wherein the third bending portion 130 and the first bending portion 110 are respectively integrally extended from two opposite sides of the main body 190; the fourth bending portion 140 and the second bending portion 120 are integrally extended from opposite sides of the body 190. The second connection portion 160, the third connection portion 170, and the fourth connection portion 180 are disposed corresponding to one corner of the main body 190; the second connecting portion 160 is connected between the second bending portion 120 and the third bending portion 130; the third connecting portion 170 is connected between the third bending portion 130 and the fourth bending portion 140; the fourth connecting portion 180 is connected between the fourth bending portion 140 and the first bending portion 110; the first curved portion 110, the second curved portion 120, the third curved portion 130, the fourth curved portion 140, the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180 are curved and extend toward the same side of the body portion 190.

In the present embodiment, a display panel cover with a rectangular structure is taken as an example for description, but in some other embodiments, the display panel cover may also have other shapes, and the shapes of the display modules are the same, and further details regarding the display panel cover and the other shapes of the display modules are not shown here.

In one embodiment, the main body 190, the first curved portion 110, the second curved portion 120, the third curved portion 130, and the fourth curved portion 140 in this embodiment have the same thickness, which is T4, and are greater than the thickness T3 of the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180. The connecting portions (including the first connecting portion 150, the second connecting portion 160, the third connecting portion 170, and the fourth connecting portion 180) are respectively connected with the main body portion 190 and the bending portions adjacent thereto in a smooth transition manner, and the thickness of the connecting portions gradually decreases along a connecting edge with the main body portion 190 and the bending portions (including the first bending portion 110, the second bending portion 120, the third bending portion 130, and the fourth bending portion 140) toward a direction away from the connecting edge. That is, the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180 form a similar structure.

In addition, an embodiment of the present application further provides an electronic device, where the electronic device includes a housing and a display screen assembly, and please refer to the related description of the foregoing embodiment for the detailed structure of the housing and the display screen assembly, which is not repeated herein.

The electronic equipment, display screen subassembly and display screen apron that this application embodiment provided carry out the thinization design with the four corners department of the glass apron of four curved surfaces, and the space smooth transition of thinization has unnecessary shrink deformation's space when being in the laminating for flexible display module group four corners to improve laminating fold, pile up bad phenomenon such as.

Further, an embodiment of the present application further provides a method for attaching a display screen assembly, please refer to fig. 22, and fig. 22 is a schematic flow chart of an embodiment of the attaching method of the present application, which includes, but is not limited to, the following steps.

Step M201, a display screen cover plate is provided.

The structure of the display screen cover plate may be the display screen cover plate structure in the foregoing embodiments, and details are not described here.

Step M202, a display module is provided.

Referring to fig. 23, fig. 23 is a schematic structural view illustrating a display module in a front plane state, wherein the display module 200 includes a main display area 210, a curved display area 220 and a connection area 230; the connection regions 230 are connected to the main display region 210 and the adjacent curved display region 220, respectively, and the connection regions 230 are disposed corresponding to corner positions of the main display region 210.

And step M203, aligning and attaching the main display area and the bent display area of the display module with the main body part and the bent part of the display screen cover plate respectively.

In this step, the position relatively easy to attach is attached first. Specifically, the main display area and the curved display area of the display module can be aligned and attached to the main body portion and the curved portion of the display screen cover plate respectively by using optical cement.

And M204, aligning and attaching the connecting area of the display module and the connecting part of the display screen cover plate.

In this step, because the joining region of display module assembly and the connecting portion of display screen apron are the region that is located the bight, the laminating degree of difficulty is great relatively, consequently can be after the step of counterpointing the laminating with the main part and the flexion of display screen apron respectively with the main display area and the crooked display area of display module assembly. Wherein, also can be through Optical Cement (OCA) laminating between the connecting region of display module assembly and the connecting portion of display screen apron. The types of optical glues are within the understanding of those skilled in the art and are not listed here.

In one embodiment, the thickness of the optical cement between the connection region 230 of the display module 200 and the connection portion (including the first connection portion 150, the second connection portion 160, the third connection portion 170, and the fourth connection portion 180) of the display panel 100 is gradually reduced in a direction away from the main display region 210 of the display module 200. I.e. the thickness of the optical glue gradually decreases towards the edge of the display screen assembly. The normal non-thinned thickness of the optical cement is about 0.15mm, the maximum thickness after thinning can be made to be 0.125mm, and the thinnest part of the optical cement after thinning can be made to be 0.025mm. The same thinned area of the optical glue needs to be smoothly transited to ensure the best appearance and display effect. Please refer to fig. 9, fig. 17, and fig. 21 for the structure of the display module after being attached to the display screen cover plate.

The laminating method that this embodiment provided combines the structure of aforementioned display screen apron, and easy operation can realize the good laminating effect between display module assembly and the display screen apron, especially the laminating of bight position for display module assembly can be with the normal attached and not take place extrusion, fold and optical cement bubble scheduling problem of display screen apron in fillet position.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the contents of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are all included in the scope of the present invention.

Claims

1. A display screen cover plate is characterized by comprising a main body part, a first bending part, a second bending part and a first connecting part; the first bending part and the second bending part respectively extend integrally with two adjacent side edges of the main body part, and the first connecting part is connected between the first bending part and the second bending part and extends integrally with the main body part corresponding to the corner position of the main body part; the first bending portion, the second bending portion, and the first connecting portion are bent and extended toward the same side of the main body portion; a radius of curvature of the first connection portion is greater than radii of curvature of the first curved portion and the second curved portion, and a thickness of the first connection portion is greater than thicknesses of the first curved portion, the second curved portion, and the main body portion;

curvature radius transition areas are respectively arranged among the first connecting portion, the first bending portion, the second bending portion and the main body portion, and the curvature radius of the curvature radius transition areas is gradually increased from the bending portions to the connecting portions so that the bending portions, the main body portion and the connecting portions are connected in a smooth transition mode;

and a curvature radius gradual change area is arranged between the bending part and the main body part, is arranged close to the end part of the connecting part connected with the bending part, and is smoothly connected with the curvature radius transition area.

2. The cover plate of claim 1, wherein the main body portion has a rectangular structure, and the cover plate further comprises a third curved portion, a fourth curved portion, a second connecting portion, a third connecting portion, and a fourth connecting portion; the third bending part and the first bending part are respectively and integrally extended with two opposite side edges of the main body part; the fourth bending part and the second bending part are respectively and integrally extended with two opposite side edges of the main body part; the second connecting part, the third connecting part and the fourth connecting part are respectively arranged corresponding to one corner of the main body part; the second connecting part is connected between the second bending part and the third bending part; the third connecting part is connected between the third bending part and the fourth bending part; the fourth connecting part is connected between the fourth bending part and the first bending part; the first curved portion, the second curved portion, the third curved portion, the fourth curved portion, the first connection portion, the second connection portion, the third connection portion, and the fourth connection portion extend in a curved manner toward the same side of the main body portion.

3. The display screen cover according to claim 2, wherein the first curved portion, the second curved portion, the third curved portion and the fourth curved portion have the same radius of curvature and are smaller than the radius of curvature of the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion.

4. The display screen cover plate according to claim 3, wherein curvature radius transition regions are respectively arranged between the adjacent bending portions and the main body portion and the connecting portion, and the curvature radius of the curvature radius transition regions gradually increases from the bending portions to the connecting portion, so that the bending portions and the main body portion and the connecting portion are connected in a smooth transition manner.

5. The cover panel of claim 3, wherein the first, second, third, and fourth connecting portions each have a thickness greater than the first, second, third, fourth, and main portions.

6. The display screen cover according to any of claims 1 to 5, wherein the radius of curvature of the curved portion is not greater than 3mm.

7. The display screen cover according to claim 6, wherein the radius of curvature of the connecting portion is not less than 6mm.

8. A display screen assembly, characterized in that, the display screen assembly includes display module assembly and the display screen apron of any one of claims 1-7, the display module assembly is located the flexion of display screen apron and the lateral surface that connecting portion orientation.

9. An electronic device comprising a housing and the display screen assembly of claim 8; the shell is connected with a display screen cover plate of the display screen assembly and is commonly surrounded to form an accommodating space, and a display module of the display screen assembly is arranged in the accommodating space.

10. The electronic device of claim 9, wherein the housing comprises a center frame and a rear cover, the rear cover and the display cover plate being connected to opposite sides of the center frame, respectively.

11. The electronic device of claim 10, wherein the edge of the rear cover is bent toward the middle frame and is connected with the edge of the middle frame in a matching manner.

12. The electronic device of claim 9, wherein the edge of the housing is bent toward the display cover plate and is connected to the edge of the display cover plate.