CN217181742U

CN217181742U - Display screen and electronic equipment

Info

Publication number: CN217181742U
Application number: CN202121606264.3U
Authority: CN
Inventors: 刘方成
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-08-12
Anticipated expiration: 2031-07-15

Abstract

The embodiment of the application provides a display screen and electronic equipment. The display screen comprises a display panel and a support plate made of a light-transmitting material; the supporting plate comprises a first plate surface and a second plate surface, the first plate surface and the second plate surface are arranged back to back, and the display panel is attached to the first plate surface; the supporting plate is provided with a light shielding layer, and the light shielding layer is arranged on the first plate surface or the second plate surface; the support plate comprises a bending area and a non-bending area, and the display screen is used for bending in the bending area; the bending area is provided with a hollow structure, or the thickness of the bending area is smaller than that of the non-bending area. According to the technical scheme, the metal supporting plate is replaced by the supporting plate and the light shielding layer made of the light-transmitting materials, the orange peel phenomenon can be avoided, the bending performance of the supporting plate in the bending area is improved through the hollow structure, the supporting plate is enabled not to generate plastic deformation after being bent for many times, the display screen can be prevented from generating creases, and the structural strength and the display effect of the display screen are improved.

Description

Display screen and electronic equipment

Technical Field

The application relates to the technical field of display screens, in particular to a display screen and electronic equipment.

Background

In recent years, the display screen technology of electronic devices has been developed rapidly, and particularly, the generation of flexible screens enables the electronic devices to develop more product forms, wherein a folding screen device is a product form emerging at present. The display screen of the folding screen device may include a three-layer stack structure including a support plate, a display screen panel, and a cover plate in sequence from bottom to top. The support plate may include at least one bending region, and the display screen module is configured to implement bending and folding in the bending region.

At present, the supporting plate is generally made of metal, such as stainless steel, titanium alloy, etc. Because metal has plasticity, so metal backup pad is after repeated the bending, takes place plastic deformation easily in the bending zone, leads to the display screen to appear obvious crease in the bending zone. In addition, limited by the characteristics of the material, the processing technology and other factors, the surface roughness of the existing metal support plate is poor, so that after the metal support plate is attached to the display panel and the cover plate, the flatness of the front surface (namely one side of the cover plate) of the display screen is poor, the orange peel phenomenon of the front surface of the display module is aggravated, and the display effect is influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a display screen and electronic equipment to solve the problems that the structural strength reliability of the display screen of the existing folding screen display equipment is poor and the display effect is poor, and the user experience is improved.

In a first aspect, an embodiment of the present application provides a display screen, including: the display panel and the supporting plate made of light-transmitting materials; the supporting plate comprises a first plate surface and a second plate surface, the first plate surface and the second plate surface are arranged back to back, and the display panel is attached to the first plate surface; the supporting plate is provided with a light shielding layer, and the light shielding layer is arranged on the first plate surface or the second plate surface; the support plate comprises a bending area and a non-bending area, and the display screen is used for bending in the bending area; the bending area is provided with a hollow structure, or the thickness of the bending area is smaller than that of the non-bending area.

According to the technical scheme, the metal supporting plate is replaced by the supporting plate and the light shielding layer made of the light-transmitting materials, the orange peel phenomenon can be avoided, the bending performance of the supporting plate in the bending area is improved through the hollow structure, the supporting plate is enabled not to generate plastic deformation after being bent for many times, the display screen can be prevented from generating creases, and the structural strength and the display effect of the display screen are improved.

In one implementation, the support plate is ultra-thin glass. The backup pad that ultra-thin glass made possesses good support nature, and the hollow out construction who sets up in the district of buckling still makes the backup pad that ultra-thin glass made possess good bending property in the district of buckling.

In one implementation mode, the display screen comprises at least one light-transmitting area, and the light shielding layer is distributed in the area outside the light-transmitting area, so that the support plate has light-transmitting capacity in the light-transmitting area and does not have light-transmitting capacity in the area outside the light-transmitting area; the display screen comprises a display screen body, a light transmission area and an optical device, wherein one side of the second plate surface of the light transmission area is used for arranging the optical device, and the optical device is used for receiving a light source from the outside of the display screen through the light transmission area and emitting the light source to the outside of the display screen through the light transmission area. Like this, when the display screen is applied to the electronic equipment that has camera isotructure under the screen, utilize the printing opacity ability of backup pad just can provide the light path for camera under the screen, and need not punch to the backup pad.

In one implementation, the light shielding layer is a black single-sided light shielding adhesive tape; one side of the black single-sided shading tape has viscosity, and the other side of the black single-sided shading tape has no viscosity; the sticky surface of the black single-sided shading tape is attached to the first plate surface or the second plate surface.

In one implementation mode, the light shielding layer is black ink, and the black ink is coated on the first plate surface or the second plate surface.

In one implementation mode, the hollowed-out structure comprises a plurality of strip-shaped grooves arranged on the first board surface and/or the second board surface; the length direction of the strip-shaped groove is parallel to the axis line of the display screen when the display screen is bent; the depth of the strip-shaped groove is smaller than the thickness of the support plate, so that the support plate has a certain thickness at the bottom of the strip-shaped groove and forms a continuous structure with an area without the strip-shaped groove. The bar groove can provide more deformation spaces in the bending area of the supporting plate, so that the internal stress of the bending area is reduced, and the bending performance of the bending area is improved.

In one implementation, the strip-shaped groove is filled with a flexible medium, and the flexible medium and the support plate form an integrated structure. The flexible medium of bar inslot intussuseption can enough improve the backup pad at the anti extrusion and the shock resistance in the district of buckling, can not influence the backup pad again in the performance of buckling of the district of buckling to the flexible medium still can not produce the moulding when making backup pad and display screen panel laminating, has improved the display performance of display screen.

In one implementation, the plurality of strip-shaped grooves are distributed in an array; the array distribution takes two adjacent strip-shaped grooves as basic array units, and the basic array units are obtained by rectangular arrays along the length direction and the width direction of the strip-shaped grooves, wherein the two adjacent strip-shaped grooves are staggered for a certain distance along the length direction, so that one end of one strip-shaped groove is positioned in the central area of the other strip-shaped groove.

In one implementation, the thickness of the inflection zone is less than the thickness of the non-inflection zone by removing material from the second panel at the inflection zone.

In one implementation, the thickness of the non-inflection regions is greater than 100 microns and the minimum thickness of the inflection regions is less than 70 microns.

In a second aspect, an embodiment of the present application provides an electronic device, including: the display screen comprises a shell, at least one optical device arranged in the shell and the display screen provided by the first aspect and any implementation manner of the first aspect; the display screen comprises at least one light-transmitting area, and the light-transmitting area has light-transmitting capacity; at least one optical device is arranged below the light-transmitting area and used for receiving light sources outside the electronic equipment through the display screen or transmitting the light sources outside the electronic equipment through the display screen.

In one implementation, the optical device includes any one or more of: the device comprises a camera, a dot matrix projector, a floodlight induction element, an infrared lens, a flight time sensor and an optical fingerprint identification module.

Drawings

Fig. 1 is a schematic structural diagram of a folding screen device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a display screen of a folding screen device provided in an embodiment of the present application;

FIG. 3 is a schematic view of the support panel shown in an embodiment of the present application after deployment;

FIG. 4 is a schematic structural diagram of a display screen including a metal supporting plate according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a display screen according to a first embodiment of the present application;

FIG. 6 is a schematic structural view of a support plate in a bending region according to an embodiment of the present application;

FIG. 7 is a schematic diagram illustrating a distribution of stripe grooves according to an embodiment of the present disclosure;

FIG. 8 is a cross-sectional view taken along line K of a groove in an embodiment of the present application;

FIG. 9 is a schematic structural view of a support plate in a bending region according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a display screen according to a second embodiment of the present application;

fig. 11 is a schematic structural diagram of a display screen provided in a third embodiment of the present application;

fig. 12 is a schematic structural diagram of a display screen provided in a fourth embodiment of the present application;

fig. 13 is an exploded view of an electronic device according to a fifth embodiment of the present application.

Illustration of the drawings:

wherein: 10-a body, 11-a display screen, 21-a support plate, 22-a display panel, 23-a cover plate, 31-a bending area, 32-a non-bending area, 33-a light-transmitting area, 34-a hole, 35-a crease, 40-a camera, 100-a support plate, 110-a first plate surface, 120-a second plate surface, 130-a light-shielding layer, 140-a hollow structure, 141-a strip-shaped groove, 142-a round corner, 150-a basic array unit, 160-a flexible medium, 200-a display panel, 300-a cover plate, 400-optical glue, 500-an optical device, 510-a camera, 520-a dot matrix projector, 530-a floodlight sensing element, 540-an infrared lens and 550-an optical fingerprint identification module.

Detailed Description

In recent years, the display screen technology of electronic devices has been developed rapidly, and particularly, the generation of flexible screens enables the electronic devices to develop more product forms, wherein a folding screen device is a product form emerging at present.

Currently, the folding screen device may be divided into an inner folding screen device and an outer folding screen device according to the difference of the folding direction of the display screen 11. Fig. 1 is a schematic structural diagram of a folding screen device according to an embodiment of the present application. Wherein, the structure a in fig. 1 is a schematic structural view of the inner folding screen device, and the structure b in fig. 1 is a schematic structural view of the outer folding screen device. As shown in structure a of fig. 1, the internal folding screen device means that the main body 10 of the electronic device can be folded toward the display screen 11, and the display screen 11 is hidden inside the main body 10 of the electronic device after the main body 10 of the electronic device is folded, so as to form the effect that the display screen 11 is hidden in the folded state of the main body 10 and appears in the unfolded state of the main body 10; as shown in a structure b in fig. 1, the external folding screen device means that the main body 10 of the electronic device can be folded toward the back side of the main body 10, and the display screen 11 surrounds the outside of the main body 10 of the electronic device after the main body 10 of the electronic device is folded, so that the display screen 11 surrounds the main body 10 in the folded state of the main body 10 to form a surrounding screen, and the main body 10 presents a normal straight screen effect in the unfolded state.

It can be understood that, because the display screen of the folding screen device needs to be bent frequently, compared with the electronic device in the conventional form, the display screen of the folding screen device needs to be designed in some adaptability according to the use scene of the folding screen device, so that the display screen can be kept in a good support form in different opening and closing states of the body.

Fig. 2 is a schematic structural diagram of a display screen of a folding screen device according to an embodiment of the present application. As shown in fig. 2, the display screen of the folding screen apparatus may include a three-layer stack structure including a support plate 21, a display panel 22(panel), and a cover plate 23(cover) in this order from the bottom up. Wherein: the support plate 21 is the lowermost layer of the display panel, and is generally made of metal, such as stainless steel, titanium alloy, etc., and the support plate 21 is used for supporting and maintaining the shape of the display panel in various open/close states of the body. The display panel 22 is a display screen middle layer and can be attached above the supporting plate 21 by sealing glue, and the display panel 22 can be a flexible Organic Light-Emitting Diode (OLED) display panel 22 or other flexible (bendable) display panels 22, such as a flexible Micro LED display panel 22, a Mini LED display panel 22, and the like, which is not limited in the embodiment of the present application. The cover plate 23 is the uppermost layer of the display screen, and can be attached above the display panel 22 by sealing, the cover plate can be made of ultra-thin glass (UTG), and the thickness of the existing ultra-thin glass cover plate is generally not more than 70 micrometers because the ultra-thin glass with the thickness of more than 100 micrometers is easy to break after being bent.

Fig. 3 is a schematic view of the support plate shown in the embodiment of the present application after being unfolded. As shown in fig. 3, the supporting plate 21 may include at least one bending region 31, and the region outside the bending region 31 is a non-bending region 32. Here, the bending region 31 refers to a region where bending occurs when the body of the folding screen apparatus is folded, and the non-bending region 32 refers to a region where bending does not occur when the body of the folding screen apparatus is folded. It is obvious that the number of bending zones 31 is determined by the number of folds of the body of the folding screen device, and that the display screen may comprise one bending zone 31 if the body of the folding screen device is folded only once (i.e. a single folding screen device) and two bending zones 31 if the body of the folding screen device is folded twice (i.e. a double folding screen device). As an example, the display screen shown in fig. 3 includes a bending region 31 distributed up and down, and non-bending regions 32 are located at left and right sides of the bending region 31 for implementing left and right bending of the body of the folding screen apparatus. The number of bending regions 31 of the display screen is not within the scope of the discussion of the embodiments of the present application and therefore will not be described in greater detail below.

Fig. 4 is a schematic structural diagram of a display screen including a metal supporting plate according to an embodiment of the present application. As shown in fig. 4, some electronic devices may place a camera 40 under the display screen, i.e., an off-screen camera, which requires that the display screen have light-transparency at the location of the camera 40. However, since the metal support plate 21 itself is opaque, when the camera 40 is disposed under the display screen, the current solution is to partially perforate 34 the area of the metal support plate 21 where the camera 40 is disposed, so that light enters the camera 40 through the perforation 34. However, the holes 34 may reduce the strength of the metal support plate 21, and may easily damage the display panel when an external force is applied. In addition, since the metal has plasticity, the metal support plate 21 is easily subjected to plastic deformation in the bending region 31 after repeated bending, so that the display screen has obvious creases 35 in the bending region. In addition, limited by the characteristics of the material, the processing technology and other factors, the surface roughness of the metal support plate 21 is poor at present, so that after the metal support plate is attached to the display panel 22 and the cover plate 23, the flatness of the front surface (i.e. one side of the cover plate) of the display screen is poor, the orange peel phenomenon of the front surface of the display module is aggravated, and the display effect is affected. Therefore, the display screen adopting the metal supporting plate at present has the problems of poor structural strength reliability and poor display effect, and the use experience of a user is influenced.

The embodiment of the application provides a display screen and electronic equipment to solve the problems that the structural strength reliability of the display screen of the existing folding screen display equipment is poor and the display effect is poor, and the user experience is improved. It can be understood that the display screen provided in the embodiments of the present application can also be applied to electronic devices in other forms, for example: the display screen comprises electronic equipment, scroll screen equipment, straight screen equipment and the like, wherein the edges of the display screen are curved surfaces.

The following is a first embodiment of the present application.

A first embodiment of the present application provides a display screen.

Fig. 5 is a schematic structural diagram of a display screen according to a first embodiment of the present application. As shown in fig. 5, the display screen includes: a support plate 100, a display panel 200, and a cover plate 300.

The supporting plate 100 is a light-transmitting plate, and may be made of a material having a light-transmitting ability and a certain supporting ability, such as ultra-thin glass, resin, and the like. In the embodiment of the present application, in order to ensure that the support plate 100 can provide good support for the display screen, it is preferable to use ultra-thin glass with a thickness greater than 100 micrometers (μm) for the support plate 100.

It will be appreciated that the support plate 100 may include two plate surfaces back-to-back as a plate-like structure, and for ease of description, the two plate surfaces of the support plate 100 will be referred to herein as the first plate surface 110 and the second plate surface 120. In a form of the display screen mounted on the electronic device, the first board surface 110 refers to a board surface of the support board 100 facing away from the electronic device body, and the second board surface 120 refers to a board surface of the support board 100 facing the electronic device body.

The display panel 200 is disposed on the first plate surface 110 of the support plate 100 and is used for displaying an image. The display panel 200 may be, for example, a flexible Organic Light-Emitting Diode (OLED) display panel 200, or may be other flexible (i.e., bendable) display panels 200, such as a flexible Micro LED display panel 200, a Mini LED display panel 200, and the like, which is not limited in this embodiment.

The cover plate 300 is disposed on a surface of the display panel 200 facing away from the support plate 100. In view of the bending property, the cover plate 300 may be made of a transparent thin film material, such as ultra-thin glass having a thickness of 70 μm or less, a transparent polyimide (CPI), and the like, which is not limited in the embodiments.

Generally, to ensure the appearance of the display screen, the supporting plate 100 is usually made of a non-light-transmissive material, such as a metal plate. In the embodiment of the present invention, in order to realize the capability of the supporting plate 100 of not being transparent, the second plate surface 120 of the supporting plate 100 is further provided with a light shielding layer 130, and the light shielding layer 130 is preferably formed by a black light shielding material, so that light from the outside of the supporting plate 100 is blocked by the light shielding layer 130 and does not penetrate through the supporting plate 100, so that the supporting plate 100 has the capability of not being transparent.

In one implementation, the light-shielding layer 130 may be a black single-sided light-shielding tape, where "single-sided" means that one side of the light-shielding tape has adhesive properties and the other side has no adhesive properties. To obtain the light shielding layer 130, after the support plate 100 is molded, the adhesive surface of the black single-sided light shielding tape is faced to the second plate surface 120 of the support plate 100, so that the black single-sided light shielding tape is adhered to the second plate surface 120 of the support plate 100.

In order to ensure that the supporting plate 100 still has a flat surface after the black single-sided light-shielding tape is adhered, it is preferable to adhere a whole black single-sided light-shielding tape on the second plate surface 120 of the supporting plate 100, so as to avoid the occurrence of the condition that the flatness is affected by splicing multiple light-shielding tapes.

In one implementation, the light shielding layer 130 may be black ink, and the black ink may be applied to the second plate surface 120 of the support plate 100 at a processing stage or after the processing of the support plate 100 is completed. The coating of the support plate 100 may be accomplished using any feasible process, such as: screen printing (also referred to as screen printing), a yellow light process, a transfer printing process, and the like, which are not particularly limited in the embodiments of the present application.

In the embodiment of the present application, an Optical Clear Adhesive (OCA) 400 is disposed between the display panel 200 and the first plate surface 110 of the supporting plate 100, so that the display panel 200 is adhered to the first plate surface 110 of the supporting plate 100 through the optical adhesive 400. The optical adhesive 400 is a double-sided adhesive without a base material, and has the characteristics of being colorless and transparent and high in light transmittance, and the display effect of the display screen cannot be reduced by bonding the display panel 200 and the support plate 100 with the optical adhesive 400.

It is understood that for ultra-thin glass: the larger the thickness, the higher the structural strength, the better the support, and the poorer the bending performance, the more easily the fracture occurs during bending; conversely, the smaller the thickness, the better the bending performance, the less likely it is to crack the sound at the time of bending, while the lower the structural strength, the less likely it is to provide good support.

In the embodiment of the present application, when the supporting plate 100 is made of ultra-thin glass, in order to enable the supporting plate 100 to have good supporting performance and provide good bending performance in the bending region 31, the supporting plate 100 further includes the hollow structure 140 in the bending region 31, and the hollow structure 140 can be obtained by performing processes such as chemical etching or laser cutting on the bending region 31 of the supporting plate 100.

Fig. 6 is a schematic structural view of the support plate 100 in the bending region 31 according to the embodiment of the present application. As shown in fig. 6, in an implementation manner, the hollow structure 140 includes a plurality of grooves 141 disposed on the first plate surface 110 and/or the second plate surface 120 of the supporting plate 100, and the distribution manner of the plurality of grooves 141 may be regarded as obtained by taking at least one groove 141 as a unit array.

In one implementation, the depth of the strip-shaped groove 141 may be less than the thickness of the support plate 100, that is, the strip-shaped groove 141 does not penetrate through the support plate 100, in this design, the strip-shaped groove 141 may be only disposed on the first plate surface 110 of the support plate 100, or may be only disposed on the second plate surface 120 of the support plate 100, so that the support plate 100 may still maintain a continuous structure in the area where the strip-shaped groove 141 is distributed, and the thickness becomes thinner, thereby improving the bending performance.

In addition, when the depth of the strip-shaped groove 141 is smaller than the thickness of the support plate 100, the strip-shaped groove 141 may be disposed on both the first plate surface 110 and the second plate surface 120 of the support plate 100, and the strip-shaped groove 141 on the first plate surface 110 and the strip-shaped groove 141 on the second plate surface 120 may be disposed in a staggered manner, or may be disposed in an up-down one-to-one correspondence manner. When the strip-shaped grooves 141 are vertically arranged in a one-to-one correspondence manner, the sum of the thicknesses of the strip-shaped grooves 141 on the first board surface 110 and the strip-shaped grooves 141 on the second board surface 120 is smaller than the thickness of the support plate 100, so that the support plate 100 can still keep a continuous structure in the area where the strip-shaped grooves 141 are distributed, the thickness is thinned, and the bending performance is improved.

In another implementation manner, the depth of the strip-shaped groove 141 may be equal to the thickness of the support plate 100, that is, the strip-shaped groove 141 penetrates through the support plate 100, in this design, the strip-shaped groove 141 penetrates from the first plate surface 110 of the support plate 100 to the second plate surface 120 of the support plate 100, so that the support plate 100 is a discontinuous structure in the area where the strip-shaped groove 141 is disposed, and this discontinuous structure may provide a deformation space when the support plate 100 is bent, thereby improving the bending performance of the support plate 100.

In one implementation, the strip-shaped groove 141 is preferably a straight groove, i.e. extending in a straight line as a whole. The longitudinal direction of the bar-shaped groove 141 may be set according to the bending direction of the support plate 100 (i.e., the bending direction of the display panel), and is preferably parallel to the axial direction of the support plate 100 when bent (i.e., the axial direction of the display panel when bent).

Fig. 7 is a schematic diagram illustrating a distribution manner of the stripe grooves 141 according to an embodiment of the present application. As shown in fig. 7, in one implementation, stripe-shaped groove 141 is of a uniform width structure as a whole; the strip-shaped groove 141 has a certain length G along the direction of the axis L of the support plate 100; the two ends of the strip-shaped groove 141 in the length direction can be transited by adopting the round corners 142, so that the side surface of the strip-shaped groove 141 is smooth as a whole, and large stress concentration cannot occur when the strip-shaped groove is bent. The plurality of stripe grooves 141 may be distributed in the bending region 31 by taking two adjacent stripe grooves 141 as the basic array unit 150, and the basic array unit 150 is obtained by rectangular array along the length direction of the stripe grooves 141 and the width direction of the stripe grooves 141. For convenience of description, the two stripe grooves 141 in the basic array unit 150 are referred to herein as a stripe groove 141a and a stripe groove 141b, and the sizes of the stripe grooves 141a and 141b may be the same or different. The strip-shaped groove 141b is located on one side of the strip-shaped groove 141a in the width direction of the strip-shaped groove 141, and is shifted from the strip-shaped groove 141a by a first distance W1 in the length direction, so that the center of the strip-shaped groove 141a is located at the center of two adjacent strip-shaped grooves 141 b. After the basic array cells 150 are arranged in a rectangular array in this way, any two stripe grooves 141 adjacent in the width direction are arranged in a staggered manner in the longitudinal direction.

It should be added that, in the embodiment of the present application, the hollow structure 140 can also be implemented in, but is not limited to, any of the following forms: a hole array structure, that is, an array of holes is formed in the bending region 31 of the support plate 100 by etching or laser cutting, and a deformation space is provided by the hole array when the support plate 100 is bent, so that the bending performance of the support plate 100 is improved; the through groove structure, that is, a continuous through groove is formed in the bending region 31 of the support plate 100 along the direction of the axis L when the support plate 100 is bent, the through groove may be, for example, a trapezoidal groove or a groove with an arc-shaped bottom surface, and the like.

Fig. 8 is a K-direction cross-sectional view of the stripe groove 141 according to the embodiment of the present application. As shown in fig. 8, in an implementation manner, in order to avoid the problem of generating a stamp when the display panel 200 is attached to the support plate 100, the strip-shaped grooves 141 are filled with the flexible mediums 160 (fig. 8 only shows the flexible mediums 160 in a part of the strip-shaped grooves 141, and the other strip-shaped grooves 141 not showing the flexible mediums 160 are also filled with the flexible mediums 160), and the filled flexible mediums 160 and the non-grooved area of the support plate 100 are located in the same plane, so that the stamp is not generated after the display panel 200 is attached.

In one implementation, the flexible medium 160 may be, for example, Liquid Silicone Rubber (LSR). The liquid silicone rubber may be injected into the bar groove 141 through a Liquid Injection Molding System (LIMS) such that the liquid silicone rubber and the main body of the support plate 100 form an integral structure.

The injection molding process of the liquid silicone gel according to the embodiments of the present application is exemplified below. Generally, the liquid silica gel is a two-component gel comprising a gel A and a gel B, wherein the gel A and the gel B are liquid at normal temperature and can be rapidly cured by heating to a certain temperature after being mixed. Before injection molding, firstly, executing a material mixing process, namely mixing glue A and glue B; then, the mixed liquid silica gel is injected into the strip-shaped groove 141, preferably filling the whole strip-shaped groove 141; finally, the injected liquid silicone gel is heated and pressurized to be cured, the cured liquid silicone gel is integrated with the main structure of the support plate 100, and the liquid silicone gel and the plate surface of the support plate 100 are located in the same plane.

Fig. 9 is a schematic structural view of the support plate 100 in the bending region 31 according to the embodiment of the present application. As shown in fig. 9, when the support plate 100 is made of ultra-thin glass, in order to provide the support plate 100 with good support and good bending performance at the bending region 31, the bending region 31 of the support plate 100 may be locally thinned to improve the bending performance of the bending region 31. For example, if the overall thickness of the support plate 100 is above 100 microns, the minimum thickness of the inflection zones 31 of the support plate 100 may be thinned to below 70 microns.

In one implementation, as shown in fig. 9, the supporting plate 100 may be thinned on one side of the second plate surface 120, so that the thickness of the supporting plate 100 in the bending region 31 is reduced, and the original flat first plate surface 110 of the supporting plate 100 is retained, so that the display panel 200 can be flatly attached to the first plate surface 110, and the appearance of the display screen is not affected. The reduction of the thickness of the bending region 31 may be achieved by grinding or the like of the bending region 31, and a smooth reduction of the thickness is preferably achieved from the non-bending region to the bending region 31 to avoid stress concentration in the bending region 31 due to excessive local thickness variation.

In other implementation manners, the supporting plate 100 may also be thinned on one side of the first plate surface 110, and the surface of the display panel 200 attached to the supporting plate 100 is ensured to be a flat surface by increasing the thickness of the optical cement 400 at the thinned position, so that the appearance of the display screen is not affected. In addition, the supporting plate 100 can also be thinned on both sides of the first plate surface 110 and the second plate surface 120, so that the effect of reducing the thickness of the bending region 31 can be achieved, and the thinned part of the first plate surface 110 can ensure that the surface of the display panel 200 attached to the supporting plate 100 is a flat surface in the modes of the thickness of the optical cement 400 and the like, so that the appearance of the display screen is not affected.

According to the display screen provided by the first embodiment of the application, the support plate 100 is made of materials such as ultrathin glass, and compared with the support plate 100 made of a traditional metal material, after the support plate 100 of the first embodiment of the application is bent for multiple times, the support plate 100 does not generate plastic deformation like the traditional support plate 100, so that the display screen can be prevented from generating creases; in addition, because glass has better surface roughness compared with the metal, consequently the backup pad 100 of this application embodiment can improve the roughness of display screen, reduces orange peel line phenomenon, improves display effect. To sum up, the display screen that this application embodiment provided has higher structural strength, better display effect, has promoted user and has used experience.

The following is a second embodiment of the present application.

A second embodiment of the present application provides a display screen.

Fig. 10 is a schematic structural diagram of a display screen according to a second embodiment of the present application. As shown in fig. 10, the display screen includes: a support plate 100, a display panel 200, and a cover plate 300.

The support plate 100 may be made of a material that is transparent to light and has a certain supporting property, such as ultra-thin glass, resin, and the like. In the embodiment of the present application, in order to ensure that the support plate 100 can provide good support for the display screen, it is preferable to use ultra-thin glass with a thickness greater than 100 micrometers (μm) for the support plate 100.

In order to achieve the light-proof capability of the support plate 100, the support plate 100 in the second embodiment of the present application is also provided with a light-shielding layer 130, and the light-shielding layer 130 is formed by using a light-shielding material preferably black. Unlike the second embodiment of the present application: in the second embodiment of the present application, the light shielding layer 130 is disposed on the first plate surface 110 of the supporting plate 100.

In one implementation, the light-shielding layer 130 may be a black single-sided light-shielding tape. To obtain the light shielding layer 130, after the support plate 100 is molded, the adhesive surface of the black single-sided light shielding tape is faced to the first plate surface 110 of the support plate 100, so that the black single-sided light shielding tape is adhered to the first plate surface 110 of the support plate 100.

In order to ensure that the supporting plate 100 still has a flat surface after the black single-sided light-shielding tape is adhered, it is preferable to adopt a whole block of complete black single-sided light-shielding tape to be adhered on the first plate surface 110 of the supporting plate 100, so as to avoid the occurrence of the condition that the flatness is affected by splicing a plurality of light-shielding tapes.

In one implementation, the light shielding layer 130 may be black ink, and the black ink may be applied to the first plate surface 110 of the support plate 100 at a processing stage or after the processing of the support plate 100 is completed. The coating of the support plate 100 may be accomplished using any feasible process, such as: screen printing (also called silk screen printing), a yellow light process, a transfer printing process, and the like, which are not particularly limited in this embodiment.

In the embodiment of the present application, the optical adhesive 400 is disposed between the display panel 200 and the first plate surface 110 of the supporting plate 100, so that the display panel 200 is adhered to the first plate surface 110 of the supporting plate 100 through the optical adhesive 400. The optical adhesive 400 is a double-sided adhesive without a base material, and has the characteristics of being colorless and transparent and high in light transmittance, and the display effect of the display screen cannot be reduced by bonding the display panel 200 and the support plate 100 with the optical adhesive 400. It should be noted that in the second embodiment of the present application, since the light shielding layer 130 is disposed on the first plate surface 110 of the support plate 100, the optical adhesive 400 is actually coated between the light shielding layer 130 and the display panel 200.

In the embodiment of the present application, when the supporting plate 100 is made of ultra-thin glass, in order to enable the supporting plate 100 to have good supporting performance and provide good bending performance in the bending region 31, the supporting plate 100 further includes a hollow structure 140 in the bending region 31, or local thinning is performed, and for the implementation manner of the hollow structure 140 and the local thinning, reference is made to the corresponding contents in fig. 6 to 9 in the second embodiment of the present application, and details are not repeated here.

The display screen provided by the second embodiment of the present application adopts materials such as ultra-thin glass to make the support plate 100, and compared with the support plate 100 made of traditional metal materials, the support plate 100 of the embodiment of the present application does not generate plastic deformation like the traditional support plate 100 after being bent for many times, so that the display screen can be prevented from generating creases; in addition, because glass has better surface roughness compared with the metal, consequently the backup pad 100 of this application embodiment can improve the roughness of display screen, reduces orange peel line phenomenon, improves display effect. To sum up, the display screen that this application embodiment provided has higher structural strength, better display effect, has promoted user and has used experience.

In addition, the display screen provided by the second embodiment of the present application sets the light shielding layer 130 between the support plate 100 and the display panel 200, i.e. hidden inside the display screen, which can effectively avoid the occurrence of the falling-off condition of the light shielding layer 130 which may occur when the external force acts, the material is aged, and the environment changes, thereby improving the quality reliability and the service life of the display screen.

The following is a third embodiment of the present application.

A third embodiment of the present application provides a display screen.

Currently, some electronic devices use an optical device under the screen of the electronic device to achieve the effect of a full screen, for example: the Camera, the dot projector, the flood sensing element flood atomizer, the infrared lens IR Camera, the time of flight (ToF) sensor, the optical fingerprint identification module and the like are hidden below the display screen, so that the display screen is required to have light transmission capability in the area provided with the optical device.

Fig. 11 is a schematic structural diagram of a display screen provided in the third embodiment of the present application. The display module can be improved and implemented on the basis of the display screen provided in the first embodiment of the present application, and for the parts that are not specifically expanded in the third embodiment of the present application, please refer to the first embodiment of the present application for implementation.

As shown in fig. 11, in the third embodiment of the present invention, the display screen may include one or more transparent regions 33, and the light shielding layer 130 disposed on the second plate surface 120 of the supporting plate 100 is only distributed in the region outside the transparent regions 33, so that the display screen may still have the light transmitting capability in the transparent regions 33.

Based on the display screen provided in the third embodiment of the present application, the optical device 500 under the screen of the electronic device may be disposed under the light-transmitting area 33 of the display screen, so that the optical device 500 under the screen may receive an external light source from the light-transmitting area 33 or emit the light source from the light-transmitting area 33 into the external environment.

It should be added that the number, size and position of the light-transmitting regions 33 included in the display screen can be determined by the number, size and position of the under-screen optical devices 500, so as to ensure that each under-screen optical device 500 is located below the light-transmitting region 33, and the size of the light-transmitting region 33 is the minimum in the case of meeting the light-transmitting requirement of the under-screen optical device 500.

In one implementation, when the light shielding layer 130 is a black single-sided light shielding tape, holes may be formed in the black single-sided light shielding tape at corresponding positions according to the position of the light transmitting region 33, and then the punched single-sided light shielding tape is attached to the second plate surface 120 of the supporting plate 100, so that the light transmitting region 33 is just the position where the black single-sided light shielding tape is punched after attachment, thereby having light transmitting capability.

In one implementation, when the black ink is used for the light-shielding layer 130, the light-transmitting area 33 may be avoided when the black ink is applied, or the black ink may be completely applied to the first plate surface 110, and then the black ink in the light-transmitting area 33 may be removed by etching or the like. The flow of the black ink in the light-transmitting area 33 may be performed before the supporting plate 100 is attached to the display panel 200, or may be performed after the supporting plate 100 is attached to the display panel 200, which is not limited in the embodiment of the present invention.

The display screen that this application third embodiment provided, light shield layer 130 dodges in printing opacity district 33, has realized the light transmissivity in printing opacity district 33 under the prerequisite of not punching backup pad 100 for this display screen can be used to the preparation and contains the display device of optical device under the screen, and guaranteed the support nature of display screen at printing opacity district 33.

The following is a fourth embodiment of the present application.

A fourth embodiment of the present application provides a display screen.

Fig. 12 is a schematic structural diagram of a display screen according to a fourth embodiment of the present application. The display module can be improved and implemented on the basis of the display screen provided in the second embodiment of the present application, and for the parts that are not specifically expanded in the fourth embodiment of the present application, please refer to the second embodiment of the present application for implementation.

As shown in fig. 12, in the fourth embodiment of the present invention, the display screen may include one or more transparent regions 33, and the light shielding layer 130 disposed on the first plate surface 110 of the supporting plate 100 is only distributed in the region outside the transparent regions 33, so that the display screen may still have a light transmitting capability in the transparent regions 33.

Based on the display screen provided in the fourth embodiment of the present application, the optical device 500 under the screen of the electronic device may be disposed under the light-transmitting area 33 of the display screen, so that the optical device 500 under the screen may receive external light from the light-transmitting area 33 or emit a light source from the light-transmitting area 33 to the external environment.

In one implementation, when the light shielding layer 130 is a black single-sided light shielding tape, holes may be formed in the black single-sided light shielding tape at corresponding positions according to the position of the light transmitting region 33, and then the punched single-sided light shielding tape is attached to the first plate surface 110 of the supporting plate 100, so that the light transmitting region 33 is just the position where the black single-sided light shielding tape is punched after attachment, thereby having light transmitting capability.

In one implementation, when the black ink is used for the light-shielding layer 130, the light-transmitting area 33 may be avoided when the black ink is applied, or the black ink may be completely applied to the first plate surface 110, and then the black ink in the light-transmitting area 33 may be removed by etching or the like.

The following is a fifth embodiment of the present application.

A fifth embodiment of the present application provides an electronic apparatus, which may be, for example, a folding screen apparatus, a scroll screen apparatus, or any electronic apparatus in which a display screen is bendable. The electronic device may include one or more display screens, wherein at least one display screen is the display screen provided in the embodiments of the present application. For example, the electronic device may be an inner folding screen device, and the inner folding screen device may include an inner screen and an outer screen, where the inner screen refers to a display screen hidden in a folded state of the body, and the outer screen refers to a display screen exposed in any state of the body, and the inner screen is a display screen provided in an embodiment of the present application.

Fig. 13 is an exploded view of an electronic device according to a fifth embodiment of the present application. As shown in fig. 13, the electronic device may include a housing 600, at least one optical device 500 disposed within the housing, and a display screen 700 provided in any embodiment of the present application.

The at least one optical device 500 may include, but is not limited to, a camera 510, a dot matrix projector 520, a floodlight sensing element 530, an infrared lens 540, a time-of-flight sensor, an optical fingerprint recognition module 550, and the like.

In this embodiment, the at least one optical device 500 may be disposed below the display screen, and receive external light of the electronic device through the display screen, or transmit a light source to the outside of the electronic device through the display screen.

The display screen is a transparent area 33 with light transmission capability in the area where the optical device 500 is disposed, and the number of the transparent area 33 may be one or more, specifically: when an optical device 500 is included under the display screen, the display screen may include only one light-transmissive region 33, with the optical device 500 being located under this light-transmissive region 33; when a plurality of optical devices 500 are included under the display screen, and the optical devices 500 are distributed in a concentrated manner, the display screen may include only one light-transmitting region 33, and the plurality of optical devices 500 are distributed in a concentrated manner under the light-transmitting region 33; when a plurality of optical devices 500 are included under the display screen, and the optical devices 500 are distributed dispersedly, the display screen may include only a plurality of light-transmitting regions 33, and at least one optical device 500 is disposed under each light-transmitting region 33.

It will be appreciated that the skilled person will place different functional optics 500 at different locations of the electronic device to meet ergonomic requirements, such as: the camera 510, the dot matrix projector 520, the floodlight sensing element 530, the infrared lens 540, the time-of-flight sensor ToF and the like are generally arranged at the top of the electronic equipment, so that when a user holds the electronic equipment, the optical devices 500 are not blocked from working normally; the optical fingerprint identification module is generally arranged at the middle lower part of the electronic equipment, so that when a user holds the electronic equipment, a finger can touch the area where the optical fingerprint identification module is located to complete unlocking operation. Therefore, the positions of the optical device 500 and the light-transmitting region 33 are not particularly limited in the embodiments of the present application.

It is understood that a person skilled in the art can combine, split, recombine and the like the embodiments of the present application to obtain other embodiments on the basis of several embodiments provided by the present application, and the embodiments do not depart from the scope of the present application.

The above embodiments are provided to explain the purpose, technical solutions and advantages of the present application in further detail, and it should be understood that the above embodiments are merely illustrative of the present application and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

Claims

1. A display screen, comprising: the display panel and the supporting plate made of light-transmitting materials;

the supporting plate comprises a first plate surface and a second plate surface, the first plate surface and the second plate surface are arranged back to back, and the display panel is attached to the first plate surface;

the supporting plate is provided with a light shielding layer, and the light shielding layer is arranged on the first plate surface or the second plate surface;

the support plate comprises a bending area and a non-bending area, and the display screen is used for bending in the bending area;

the bending area is provided with a hollow structure, or the thickness of the bending area is smaller than that of the non-bending area.

2. The display screen of claim 1, wherein the support plate is ultra-thin glass UTG.

3. Display screen according to claim 1 or 2,

the display screen comprises at least one light-transmitting area, and the light shielding layer is distributed in the area outside the light-transmitting area, so that the support plate has light-transmitting capacity in the light-transmitting area and does not have light-transmitting capacity in the area outside the light-transmitting area;

one side of the second plate surface of the light transmission area is used for arranging an optical device, and the optical device is used for receiving a light source from the outside of the display screen through the light transmission area and emitting a light source to the outside of the display screen through the light transmission area.

4. Display screen according to claim 1 or 2,

the shading layer is a black single-sided shading adhesive tape;

one side of the black single-sided shading tape has viscosity, and the other side of the black single-sided shading tape has no viscosity;

the sticky surface of the black single-sided shading tape is attached to the first board surface or the second board surface.

5. Display screen according to claim 1 or 2,

the shading layer is black ink, and the black ink is coated on the first plate surface or the second plate surface.

6. Display screen according to claim 1 or 2,

the hollow structure comprises a plurality of strip-shaped grooves arranged on the first board surface and/or the second board surface;

the length direction of the strip-shaped groove is parallel to the axis line of the display screen when the display screen is bent;

the depth of the strip-shaped groove is smaller than the thickness of the support plate, so that the support plate has a certain thickness at the bottom of the strip-shaped groove and forms a continuous structure with an area where the strip-shaped groove is not arranged.

7. The display screen of claim 6, wherein the strip-shaped grooves are filled with a flexible medium, and the flexible medium and the support plate form an integrated structure.

8. The display screen of claim 6,

the strip-shaped grooves are distributed in an array;

the array distribution uses two adjacent strip-shaped grooves as basic array units, and the basic array units are obtained by rectangular arrays along the length direction and the width direction of the strip-shaped grooves, wherein the two adjacent strip-shaped grooves are staggered by a certain distance along the length direction, so that one end of one strip-shaped groove is positioned in the central area of the other strip-shaped groove.

9. A display screen according to claim 1 or 2, wherein the thickness of the bending region is less than the thickness of the non-bending region by removing material from the second panel at the bending region.

10. A display screen according to claim 9, wherein the thickness of the non-bending region is greater than 100 microns and the minimum thickness of the bending region is less than 70 microns.

11. The display screen according to claim 1 or 2, further comprising: a cover plate;

the cover plate is attached to one surface of the display panel, which is back to the support plate;

the cover plate is made of ultrathin glass, and the thickness of the cover plate is less than 70 micrometers.

12. An electronic device, comprising: a housing, at least one optical device disposed within the housing, and the display screen of any of claims 1-11; wherein the content of the first and second substances,

the display screen comprises at least one light-transmitting area, and the light-transmitting area has light-transmitting capacity;

the at least one optical device is arranged below the light-transmitting area and used for receiving a light source outside the electronic equipment through the display screen or transmitting the light source to the outside of the electronic equipment through the display screen.

13. The electronic device of claim 12, wherein the optics comprise any one or more of: the device comprises a camera, a dot matrix projector, a floodlight induction element, an infrared lens, a flight time sensor and an optical fingerprint identification module.