CN217522009U

CN217522009U - Display screen and electronic equipment

Info

Publication number: CN217522009U
Application number: CN202222265726.0U
Authority: CN
Inventors: 姜贝
Original assignee: Shenzhen Wenyao Electronic Technology Co ltd
Current assignee: Shenzhen Wenyao Electronic Technology Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-09-30
Anticipated expiration: 2032-08-29

Abstract

The application discloses display screen and electronic equipment, this display screen include light emitting structure, be in the light structure and light conversion structure. The light emitting structure comprises a plurality of light emitting diodes, at least part of non-light-emitting sides of the light emitting diodes are provided with reflecting layers, the reflecting layers are used for reflecting light emitted to the reflecting layers to the light emitting diodes, the light is emitted from the light-emitting sides, the light blocking structure is located on one side, deviating from the driving back plate, of the light emitting diodes, a plurality of cavities arranged in an array are formed in the light blocking structure, the cavities correspond to the light emitting diodes respectively, the light blocking structure is used for blocking the light emitted by the light emitting diodes to the non-corresponding cavities, the light conversion structure comprises a plurality of light conversion blocks, the light conversion blocks correspond to the light emitting diodes respectively and are arranged in the cavities, and the light conversion blocks are located on one side, far away from the light emitting diodes, of the corresponding cavities. The light crosstalk problem of the display screen provided by the application is smaller, the display color cast of the display screen is smaller, and the display quality is better.

Description

Display screen and electronic equipment

Technical Field

The utility model relates to a show technical field, especially relate to a display screen and electronic equipment.

Background

The light emitting diode in the related art often includes a semiconductor layer for emitting light, and when the semiconductor layer emits light, light is emitted from each surface of the semiconductor layer, and thus, the light emitting angle of the light emitting diode is very large, and the light emitting diode can be regarded as a point light source. However, in the display screen, due to the large-angle light emitting characteristic of the light emitting diode, a large-angle portion of light emitted by the light emitting diode may be emitted to the non-corresponding light conversion block, thereby generating optical crosstalk, and causing a color shift in a display screen of the display screen.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses display screen and electronic equipment, this display screen can effectively alleviate optical crosstalk to reduce the demonstration colour cast of display screen, promote the display effect of display screen.

In order to achieve the above object, in a first aspect, the present invention discloses a display screen, including:

the light-emitting structure comprises a driving backboard and a plurality of light-emitting diodes arranged on the driving backboard in an array manner, the light-emitting diodes are electrically connected with a driving circuit on the driving backboard, the light-emitting sides of the light-emitting diodes are all arranged towards the same side of the driving backboard, at least part of the non-light-emitting sides of the light-emitting diodes are provided with a reflecting layer, and the reflecting layer is used for reflecting light emitted to the reflecting layer to the light-emitting diodes so as to emit light through the light-emitting sides;

the light blocking structure is positioned on one side, away from the driving backboard, of the light emitting diode, a plurality of cavities are formed in the light blocking structure in an array arrangement, the cavities are respectively arranged corresponding to the light emitting diodes, and the light blocking structure is used for blocking light rays emitted by the light emitting diodes from irradiating to the non-corresponding cavities; and the number of the first and second groups,

the light conversion structure comprises a plurality of light conversion blocks, the light conversion blocks are respectively arranged corresponding to the light emitting diodes, the light conversion blocks are respectively arranged in the cavities, and the light conversion blocks are positioned on one sides, far away from the light emitting diodes, of the corresponding cavities.

As an optional implementation manner, in the embodiment of the present invention, the light blocking structure includes a light blocking layer and a light blocking layer that are integrally or separately disposed, the cavity includes a first cavity and a second cavity that are connected to each other, the light blocking layer is formed with a plurality of first cavities arranged in an array, and a plurality of the light conversion blocks are respectively disposed in a plurality of the first cavities, the light blocking layer is disposed at the orientation of the light blocking layer on one side of the light emitting diode, and the light blocking layer is formed with a plurality of second cavities arranged in an array.

As an optional implementation manner, in an embodiment of the present invention, the light blocking layer includes a plurality of layers, the plurality of layers of the light blocking layer are sequentially stacked in a direction from the light emitting diode to the corresponding light conversion block, and a side of the light blocking layer closest to the light emitting structure, which faces the light emitting structure, is provided with the light blocking layer;

the light conversion structures comprise a plurality of light resistance layers, and the light conversion structures are correspondingly arranged on the light resistance layers respectively.

As an optional implementation manner, in the embodiment of the present invention, for the light-blocking structure located between any two adjacent light conversion blocks, a side of the light-blocking structure facing the light-emitting structure has a size a1, a side of the light-blocking structure facing away from the light-emitting structure has a size a2, and a1 is not greater than a 2.

As an optional implementation manner, in the embodiment of the present invention, the light-emitting side has a light-emitting surface, the non-light-emitting side has a plurality of non-light-emitting surfaces, and in the plurality of non-light-emitting surfaces, at least one of the non-light-emitting surfaces is provided with the reflective layer.

As an optional implementation manner, in an embodiment of the present invention, a microstructure is disposed on the light emitting side of the light emitting diode, and the microstructure is used for condensing light emitted by the light emitting diode.

As an optional implementation manner, in an embodiment of the present invention, the light emitting side of the light emitting diode is at least partially located in the cavity, so that the light blocking structure is located at the periphery of the light emitting diode.

As an optional implementation manner, in an embodiment of the present invention, the light emitting diode has a light emitting surface located on the light emitting side, the light blocking structure has a top surface located on a side facing the light emitting structure, a distance between the light emitting surface and the top surface is h from the direction of the light emitting structure to the light blocking structure, and 0 μm < h is less than or equal to 10 μm.

As an optional implementation manner, in the embodiment of the present invention, along the array direction of the light emitting diodes, the light emitting diodes and the light blocking structures are arranged at intervals, and along the direction from the light emitting diodes to the corresponding light conversion blocks, the light emitting diodes and the corresponding light conversion blocks are arranged at intervals.

In a second aspect, the utility model discloses an electronic equipment, include: a display screen as described above in relation to the first aspect.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides a display screen and electronic equipment sets up the reflection stratum through the non-light-emitting side at emitting diode to the light reflection that will shoot out from the non-light-emitting side is to emitting diode's inside, thereby via light-emitting side light-emitting, realizes reducing emitting diode's luminous angle's effect, in order to reduce the light that emitting diode sent, towards the light that the non-corresponding light conversion piece propagated. Simultaneously, combine in the cavity one side of keeping away from emitting diode to set up the light conversion piece, in other words, the relative light conversion piece of the structure part that is in the light is towards emitting diode protrusion to can be in the light from the position that is closer to emitting diode more, thereby realize the better effect of preventing the light crosstalk, with the demonstration colour cast that reduces the display screen, promote the display effect of display screen.

In addition, through set up the reflection stratum in non-light-emitting side, reduce emitting diode's luminous angle, can also reduce emitting diode's the light that sends, when the light that the light conversion piece that the orientation corresponds propagated, promote the light that the light conversion piece that the orientation corresponds propagated to promote the utilization ratio of the light that emitting diode sent, with the demonstration luminance that can promote the display screen, thereby promote the display effect of display screen.

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 embodiments will be briefly described 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 that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display screen disclosed in a first aspect of an embodiment of the present application;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is an expanded schematic view of the surface and the reflective layer of the light emitting diode disclosed in the first aspect of the embodiment of the present application;

fig. 4 is an exploded view of the light-transmitting substrate, the light-blocking structure and the light conversion structure in fig. 1;

fig. 5 is a schematic structural diagram of an electronic device disclosed in the second aspect of the embodiment of the present application.

Description of the main reference numerals

A display screen 1; a light emitting structure 10; a driving back plate 100; a light emitting diode 101; a light exit side 1010; a light-emitting surface 1010 a; a non-light-emitting side 1011; the non-light emitting surface 1011 a; a first surface 101 a; a second surface 101 b; a third surface 101 c; a fourth surface 101 d; a fifth surface 101 e; a reflective layer 102; a light-blocking structure 11; a cavity 110; a first cavity 110 a; a second cavity 110 b; a photoresist layer 111; the first photoresist layer 111 a; a second photoresist layer 111 b; a light-blocking layer 112; a top surface 11 a; a light converting structure 12; a light conversion block 120; a first light conversion block 120 a; a second light conversion block 120 b; a light transmitting block 121; a first light converting structure 12 a; a second light converting structure 12 b; a light-transmitting substrate 13; a frame glue 14; a transparent filling adhesive 15; an electronic device 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following examples and drawings.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of a display screen disclosed in a first aspect of the present application, and fig. 2 is an enlarged view of a point a in fig. 1. The embodiment of the utility model discloses a first aspect discloses a Display screen 1, this Display screen 1 can include but not limited to LED (Light-Emitting Diode, Emitting Diode 101) Display screen 1, LCOS (Liquid Crystal on silicon, reflection type Liquid Crystal) Display screen and LCD (Liquid Crystal Display, Liquid Crystal) Display screen etc. this Display screen 1 can be applied to electronic equipment, this electronic equipment can include but not limited to cell-phone, flat board, family education machine, game machine, electronic watch, portable computer, on-vehicle Display screen etc. have the equipment of screen Display function, when being applied to above-mentioned electronic equipment with this Display screen 1, this Display screen 1 can regard as the screen use that above-mentioned electronic equipment included.

Specifically, the display panel 1 includes a light emitting structure 10, a light blocking structure 11, and a light conversion structure 12. The light emitting structure 10 includes a driving backplane 100 and a plurality of light emitting diodes 101 arranged in an array on the driving backplane 100, the light emitting diodes 101 are electrically connected to a driving circuit (not shown in the figure) on the driving backplane 100, light emitting sides 1010 of the plurality of light emitting diodes 101 are all arranged toward the same side of the driving backplane 100, at least a part of non-light emitting sides 1011 of the light emitting diodes 101 are provided with a reflective layer 102, the reflective layer 102 is used for reflecting light emitted to the reflective layer 102 to the light emitting diodes 101 so as to emit light through the light emitting sides 1010, a light blocking structure 11 is located at a side of the light emitting diodes 101 away from the driving backplane 100, the light blocking structure 11 is formed with a plurality of cavities 110 arranged in an array, the plurality of cavities 110 are respectively arranged corresponding to the plurality of light emitting diodes 101, the light blocking structure 11 is used for blocking light emitted by the light emitting diodes 101 from emitting to the non-corresponding cavities 110, the light converting structure 12 includes a plurality of light converting blocks 120, the light conversion blocks 120 are respectively disposed corresponding to the light emitting diodes 101, the light conversion blocks 120 are respectively disposed in the cavities 110, and the light conversion blocks 120 are located at a side of the corresponding cavities 110 far away from the light emitting diodes 101.

By providing the reflective layer 102 on the non-light-emitting side 1011 of the light emitting diode 101, on the one hand, the effect of reducing the light emitting angle of the light emitting diode 101 to reduce the light rays propagating toward the non-corresponding light conversion block 120 among the light rays emitted by the light emitting diode 101 can be achieved. On the other hand, in the light that can also promote emitting diode 101 and send, the total amount of the light that the light conversion piece 120 that corresponds propagated to the orientation to promote the utilization ratio of the light that emitting diode 101 sent, with the display brightness that promotes display screen 1, thereby further promote the display effect of display screen 1.

Meanwhile, the light blocking structure 11 is partially protruded toward the light emitting diode 101 relative to the light conversion block 120, so that light blocking can be performed from a position closer to the light emitting diode 101, thereby better preventing optical crosstalk, reducing display color shift of the display screen 1, and improving the display quality of the display screen 1.

In some embodiments, the light-emitting side 1010 may have a light-emitting surface 1010a, the non-light-emitting side 1011 may have a plurality of non-light-emitting surfaces 1011a, and at least one of the plurality of non-light-emitting surfaces 1011a is provided with the reflective layer 102, so that the reflective layer 102 can reduce the light emitted from the non-light-emitting surfaces 1011a, improve the light emitted from the light-emitting surface 1010a, reduce the light-emitting angle of the light-emitting diode 101, and improve the utilization rate of the light.

Alternatively, the reflective layer 102 may include at least one of a metal reflective layer and a distributed bragg reflector layer to enable a function of receiving and reflecting light.

It is understood that, when the reflective layer 102 is disposed on the non-light-emitting surface 1011a, the reflective layer 102 may be disposed to completely cover the non-light-emitting surface 1011a, or may cover a part of the non-light-emitting surface 1011a, as long as the light emitted onto the non-light-emitting surface 1011a is reflected onto the light-emitting surface 1010a, which is not limited in this embodiment.

It can be understood that the larger the area of the non-light-emitting surface 1011a provided with the reflective layer 102 is, the smaller the light-emitting angle of the light-emitting diode 101 is, and the higher the utilization rate of the light-emitting diode 101 is. Based on this, it is preferable that all the non-light-emitting surfaces 1011a are provided with the reflective layer 102.

For example, the led 101 may be a rectangular parallelepiped, and at this time, the led 101 has six outer surfaces, wherein one outer surface facing the light-emitting side 1010 is a light-emitting surface 1010a, and the remaining five outer surfaces are all located on the non-light-emitting side 1011 and are all non-light-emitting surfaces 1011 a. Referring to fig. 3, fig. 3 is a schematic expanded view of the surface of the light emitting diode 101 and the reflective layer 102 when the light emitting diode 101 is substantially rectangular, and at this time, the five non-light-emitting surfaces 1011a may be a first surface 101a opposite to the light-emitting surface 1010a, and a second surface 101b, a third surface 101c, a fourth surface 101d and a fifth surface 101e connected between the first surface 101a and the light-emitting surface 1010a, respectively. In order to obtain better effects of reducing the light emitting angle of the light emitting diode 101 and improving the utilization rate of light, the first surface 101a, the second surface 101b, the third surface 101c, the fourth surface 101d and the fifth surface 101e may all be provided with a reflective layer 102, wherein the second surface 101b, the third surface 101c, the fourth surface 101d and the fifth surface 101e are all covered with the reflective layer 102, the first surface 101a is partially covered with the reflective layer 102, and a portion of the first surface 101a not covered with the reflective layer 102 is used for electrically connecting an electrode (not numbered in the figure) of the light emitting diode 101 to the driving back plate 100, wherein although fig. 3 is not a cross-sectional view, in order to observe the arrangement condition of the reflective layer 102 on each surface, the reflective layer 102 is shown by a filling pattern in fig. 3.

In other embodiments, the light emitting diode 101 may also be substantially cylindrical, hexagonal prism, or other shapes, the number of outer surfaces included in the light emitting diode 101 is different, and the shape of the light emitting diode 101 is not particularly limited in this embodiment.

In some embodiments, the light emitting surface 1010a of the light emitting diode 101 may be provided with microstructures (not shown) such as a fresnel microstructure or a micro convex lens, so as to condense the light emitted by the light emitting diode 101 through the microstructures, thereby further reducing the light emitting angle of the light emitting diode 101 and improving the utilization rate of the light emitted by the light emitting diode 101.

Referring to fig. 1 and fig. 2 together, in some embodiments, the light emitting side 1010 of the light emitting diode 101 may be at least partially located in the cavity 110, in other words, the light emitting surface 1010a of the light emitting diode 101 may be located in the cavity 110, so that the light blocking structure 11 is located at the periphery of the light emitting diode 101, and thus the light blocking structure 11 can block the light emitted by the light emitting diode 101 from the periphery of the light emitting side 1010 to emit to the non-corresponding light conversion block 120, so as to achieve a better effect of preventing the optical crosstalk.

In order to achieve a better light blocking effect of the light blocking structure 11 and avoid the collision easily caused by the too close distance between the light emitting diode 101 and the light blocking structure 11 and the distance between the light emitting diode 101 and the corresponding light conversion block 120, alternatively, the light emitting diode 101 may be spaced from the light blocking structure 11 along the array direction of the light emitting diode 101, and the light emitting diode 101 may be spaced from the corresponding light conversion block 120 along the direction pointing from the light emitting diode 101 to the corresponding light conversion block 120.

As mentioned above, the light emitting diode 101 may have the light emitting surface 1010a located on the light emitting side 1010, and optionally, the light blocking structure 11 may have the top surface 11a located on a side facing the light emitting structure 10, and a distance h between the light emitting surface 1010a and the top surface 11a is in a direction pointing from the light emitting structure 10 to the light blocking structure 11, in other words, a portion of the light emitting side 1010 of the light emitting diode 101 with the thickness h is located in the corresponding cavity 110.

It can be understood that, when the whole display screen 1 is deformed due to collision, extrusion or bending, especially when the display screen 1 is a flexible screen, and the display screen 1 faces a use scene needing to be deformed greatly in the use process, because the light emitting side 1010 of the light emitting diode 101 is located in the corresponding cavity 110, the relative position of the light emitting diode 101 and the light blocking structure 11 is easily changed along with the deformation of the whole display screen 1, and the part of the light emitting diode 101 located in the cavity 110 collides with the light blocking structure 11 to be damaged. Therefore, in order to avoid the light blocking structure 11 and the light emitting structure 10 from easily colliding with the deformation of the whole display screen 1 while the light blocking effect of the light blocking structure 11 is good, the distance h may not be too large, and based on this, optionally, the distance h may satisfy: 0 μm < h ≦ 10 μm, for example, the distance h may be: 0.3 μm, 0.5 μm, 0.7 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, or the like.

As shown in fig. 4, in order to further avoid the collision between the light blocking structure 11 and the light emitting structure 10 following the deformation of the whole display screen 1, and at the same time, avoid the situation that the top end of the light blocking structure 11 blocks the light emitted by the light emitting diode 101, the inventor has found through research that the size of the side of the light blocking structure 11 close to the light emitting structure 10 can be reduced, so as to further increase the distance between the light emitting diode 101 and the light blocking structure 11 along the array direction of the light emitting diode 101. Based on this, in some embodiments, for the light-blocking structure 11 located between any two adjacent light conversion blocks 120, the side of the light-blocking structure 11 facing the light-emitting structure 10 has a dimension a1, and the side of the light-blocking structure 11 facing away from the light-emitting structure 10 has a dimension a2, and the dimensions a1 and a2 may satisfy: a1 < a2, so that the side of the light-blocking structure 11 facing the cavity 110 is at least partially formed as a slope, curve or other shaped face that gradually moves away from the corresponding light-emitting diode 101.

It is understood that, in other embodiments, the dimension a1 and the dimension a2 may also satisfy: a1 ═ a2, to make the shape of the light-blocking structure 11 easier to prepare.

In some embodiments, the light blocking structure 11 may include a light absorbing material with a dark color, such as black or dark gray, so that the light blocking structure 11 has the property of blocking and absorbing light, so as to achieve the effect of blocking light.

In some embodiments, the light blocking structure 11 may include a light blocking layer 111 and a light blocking layer 112 integrally or separately disposed, the cavity 110 includes a first cavity 110a and a second cavity 110b communicated with each other, the light blocking layer 111 is formed with a plurality of first cavities 110a arranged in an array, the plurality of light conversion blocks 120 are respectively disposed in the plurality of first cavities 110a, the light blocking layer 112 is disposed on a side of the light blocking layer 111 facing the light emitting diodes 101, and the light blocking layer 112 is formed with a plurality of second cavities 110b arranged in an array, so that light emitted from the non-corresponding light emitting diodes 101 can be blocked from the outer peripheral position of the side of the light conversion block 120 facing the corresponding light emitting diode 101 through the light blocking layer 112.

In an alternative example, the light blocking layer 111 is integrally disposed with the light blocking layer 112, in other words, the whole structure of the light blocking structure 11 is integrally formed, so that the structure and the manufacturing process of the light blocking structure 11 are simple.

In another alternative example, the photoresist layer 111 and the light-blocking layer 112 are separately disposed, in other words, the light-blocking structure 11 is obtained by sequentially preparing the shaped photoresist layer 111 and the light-blocking layer 112, so that after the photoresist layer 111 is formed and before the light-blocking layer 112 is formed, the light conversion block 120 can be easily disposed in the first cavity 110a of the photoresist layer 111 alone without affecting the structure of the light-blocking layer 112, so that the preparation and shaping process of the light conversion structure 12 is simple.

To meet more complex light conversion requirements, more complex light conversion processing effects may be achieved by multiple light conversion structures 12. In this regard, in some embodiments, the photoresist layer 111 may include a plurality of layers, the plurality of photoresist layers 111 are sequentially stacked in a direction from the light emitting diode 101 to the corresponding light conversion block 120, and a light blocking layer 112 is disposed on a side of the photoresist layer 111 closest to the light emitting structure 10 and facing the light emitting structure 10, and the light conversion structure 12 may include a plurality of light conversion structures 12 respectively disposed on the plurality of photoresist layers 111.

In some embodiments, the light conversion blocks 120 may be photo-luminescent blocks or filter blocks, each light conversion block 120 has a predetermined wavelength band corresponding to light, and each light conversion block 120 is used for converting light emitted from the light emitting diode 101 into light of the predetermined wavelength band.

In an alternative example, the light conversion block 120 may be a photoluminescent block, for example, the light conversion block 120 may include a photoluminescent material such as a quantum dot material or a fluorescent material, so that the light conversion block 120 may be configured to emit light of a corresponding predetermined wavelength band under excitation of light emitted by the corresponding light emitting diode 101, so as to implement a function of converting light emitted by the corresponding light emitting diode 101 into light of the predetermined wavelength band.

In another alternative example, the light conversion block 120 may be a light filter block, for example, the light conversion block 120 may be a light semi-transparent block 121 with a specific color, the color corresponding to the color of the light of the predetermined wavelength band of the light conversion block 120, so that the light conversion block 120 may be configured to receive the light emitted by the corresponding light emitting diode 101, allow the light of the predetermined wavelength band to pass through, and block the light of the wavelength band outside the predetermined wavelength band of the light, so as to implement the function of converting the light emitted by the corresponding light emitting diode 101 into the light of the predetermined wavelength band.

In order to make the light conversion performance of the light conversion structure 12 at different positions consistent, the plurality of light conversion blocks 120 included in the same light conversion structure 12 may be all photoluminescent blocks or all filter blocks.

Further, when there are a plurality of light conversion structures 12, the light conversion blocks 120 respectively included in any two light conversion structures 12 may be the same or different, so that any two light conversion structures 12 can be used to implement the same or different light conversion functions.

It is understood that in other embodiments, among the plurality of light conversion blocks 120 included in the same light conversion structure 12, a portion of the light conversion blocks 120 may be a photo-luminescent block, and the remaining portion of the light conversion blocks 120 may be a filter block.

It is understood that the photoresist layer 111 may be one layer, two layers, three layers or more, correspondingly, the number of the light conversion structures 12 may also be one, two, three or more, the specific number of the photoresist layer 111 and the light conversion structures 12 may be selected according to the actual requirement, and the specific material of the light conversion block 120 may also be selected according to the actual requirement.

Next, several schemes of selecting different numbers of the photoresist layers 111 and specific materials of the light conversion block 120 according to different usage requirements will be illustrated.

In an alternative embodiment, the light emitting diode 101 is used to emit a polychromatic light mixed with red light, green light and blue light, in other words, the light emitted by the light emitting diode 101 includes light of a wavelength band required for the display panel 1 to realize a color picture display function. At this time, the light conversion block 120 may include a light filtering block, the predetermined wavelength band corresponding to each light conversion block 120 includes any one of a red light wavelength band, a green light wavelength band, and a blue light wavelength band, and the light conversion block 120 is configured to receive the polychromatic light emitted by the corresponding light emitting diode 101, filter light of a wavelength band other than the corresponding predetermined wavelength band in the polychromatic light, allow light of the corresponding predetermined wavelength band in the polychromatic light to pass through, and emit the polychromatic light in a direction away from the light emitting structure 10, so that the polychromatic light emitted by the light emitting diode 101 is filtered into any one of red light, green light, and blue light by each light conversion block 120, so that the display screen 1 can adjust the intensities of the red light, the green light, and the blue light, respectively, thereby implementing the function of displaying different colors.

In another alternative embodiment, the led 101 is configured to emit blue light, which has higher energy and can be used to excite the photoluminescent material to emit light. At this time, the light conversion block 120 may include photo-luminescence blocks, each having a predetermined wavelength band of a corresponding light, the predetermined wavelength band including any one of a red wavelength band and a green wavelength band, for receiving the light emitted from the corresponding light emitting diode 101, and emits light of a corresponding predetermined wavelength band in a direction away from the light emitting diode 101 under the excitation of the light, the light conversion structure 12 may further include a light transmitting block 121, the light transmitting block 121 is configured to receive the light of the blue wavelength band emitted from the corresponding light emitting diode 101 and allow the light to transmit therethrough, so that blue light emitted from the light emitting diode 101 is converted into red or green light by each light conversion block 120, the blue light emitted by the led 101 is transmitted through the light transmitting block 121, so that the intensity of the red light, the intensity of the green light, and the intensity of the blue light are adjusted by the display screen 1, thereby realizing the function of displaying different colors.

Optionally, the photoresist layer 111 may be two layers, the two photoresist layers 111 are respectively a first photoresist layer 111a connected to the light blocking layer 112 and a second photoresist layer 111b connected to a side of the first photoresist layer 111a away from the light blocking layer 112, correspondingly, the light conversion structures 12 may also be two, the two light conversion structures 12 are respectively a first light conversion structure 12a including a plurality of first light conversion blocks 120a and a plurality of light transmission blocks 121, the plurality of first light conversion blocks 120a and the plurality of light transmission blocks 121 are respectively disposed in the plurality of first cavities 110a of the first photoresist layer 111a, and the second light conversion structure 12b including a plurality of second light conversion blocks 120b, the plurality of second light conversion blocks 120b are respectively disposed in the plurality of first cavities 110a of the second photoresist layer 111b, the plurality of first light conversion blocks 120a are all photoluminescent blocks, and the plurality of second light conversion blocks 120b are respectively corresponding to the plurality of first light conversion blocks 120a, the plurality of light conversion blocks 120b, The plurality of light-transmitting blocks 121, and the plurality of second light-converting blocks 120b are all light-filtering blocks, each second light-converting block 120b is configured to allow a green light or a red light emitted by a corresponding first light-converting block 120a to pass through, and block a light emitted by a non-corresponding first light-converting block 120a and a transmitted blue light, or configured to allow a blue light emitted by a corresponding light-transmitting block 121 to pass through, and block a light emitted by a first light-converting block 120a, thereby achieving an effect of alleviating crosstalk of light, and blocking an effect of not being completely converted by the blue light at the first light-converting block 120a to pass through, so as to improve a display effect of the display screen 1.

In some embodiments, the display panel 1 may further include a light-transmissive substrate 13, and the light-blocking structure 11 and the light-converting structure 12 are formed on one side of the light-transmissive substrate 13, so as to provide a molding basis for the light-blocking structure 11 and the light-converting structure 12 through the light-transmissive substrate 13, and at the same time, the light-transmissive substrate 13 does not affect the transmission of light.

Optionally, a sealant 14 may be further disposed on one side of the light-transmitting substrate 13, where the light-blocking structure 11 and the light-converting structure 12 are disposed, the sealant 14 is disposed around the periphery of the light-blocking structure 11, and the sealant 14 is connected between the light-transmitting substrate 13 and the driving backplate 100, on one hand, a stable space is formed between the light-transmitting substrate 13 and the driving backplate 100 through the sealant 14, so that the relative positions between the light-emitting structure 10 and the light-blocking structure 11 and the light-converting structure 12 are kept stable, and on the other hand, the edge between the light-transmitting substrate 13 and the driving backplate 100 is sealed by the sealant 14, so as to surround the light-transmitting substrate 13 and the driving backplate 100, thereby preventing water and oxygen from entering between the light-transmitting substrate 13 and the driving backplate 100, and causing the light-converting structure 12 and the light-emitting diode 101 to generate light-emitting quenching conditions.

Optionally, the sealant 14 may be formed by curing a shadowless sealant filled with elastic support particles, so that the sealant 14 can support the transparent substrate 13 and the driving backplane 100, protect the light conversion structure 12 and the light emitting diode 101, and bond the transparent substrate 13 and the driving backplane 100 together, so as to stabilize the overall structure of the display screen 1.

Optionally, a transparent filling adhesive 15 may be filled between the transparent substrate 13 and the driving back plate 100 to further prevent water and oxygen from contacting the light emitting diodes 101 and the light conversion structures 12, so as to further encapsulate and protect the light emitting diodes 101 and the light conversion structures 12, wherein the transparent filling adhesive 15 is omitted in fig. 2 for easy viewing.

The embodiment of the utility model provides a display screen 1 that the first aspect is disclosed, through the non-light-emitting side 1011 at emitting diode 101 sets up reflection stratum 102, come in order to reduce the light that emitting diode 101 sent, the light of the light conversion piece 120 propagation of orientation non-correspondence, and simultaneously, make the structure 11 part that is in the light relative light conversion piece 120 of structure orientation emitting diode 101 protrusion, in order to be in the light from the position that is close emitting diode 101 more, in order to realize better preventing the optical crosstalk, reduce display screen 1's demonstration colour cast, promote display screen 1's display quality's effect.

In addition, through reducing emitting diode 101's luminous angle, can also promote in the light that emitting diode 101 sent, towards the total amount of the light that the corresponding light conversion piece 120 propagated to promote the utilization ratio of the light that emitting diode 101 sent, with the demonstration luminance that promotes display screen 1, thereby further promote display screen 1's display effect.

Referring to fig. 5, fig. 5 is a schematic structural diagram of an electronic device disclosed in the second aspect of the embodiment of the present application. The second aspect of the embodiment of the present invention discloses an electronic device 2, the electronic device 2 may include but is not limited to devices with screen display function such as mobile phone, tablet, family education machine, game machine, electronic watch, portable computer, vehicle-mounted display screen, the electronic device 2 includes at least one display screen 1 as described in the first aspect, wherein, the electronic device 2 is taken as an example of the mobile phone in fig. 5, exemplarily showing a structure of the electronic device 2. The display screen 1 has a small color cast, high brightness and better display quality, so the display effect of the electronic device 2 is better.

The display screen and the electronic device disclosed in the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only used to help understanding the display screen and the electronic device and their core ideas of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A display screen, comprising:

the light emitting structure comprises a driving backboard and a plurality of light emitting diodes arranged on the driving backboard in an array mode, the light emitting diodes are electrically connected to a driving circuit on the driving backboard, the light emitting sides of the light emitting diodes are all arranged towards the same side of the driving backboard, at least part of the non-light emitting sides of the light emitting diodes are provided with a reflecting layer, and the reflecting layer is used for reflecting light emitted to the reflecting layer to the light emitting diodes so as to emit light through the light emitting sides;

the light blocking structure is positioned on one side, away from the driving back plate, of the light emitting diode, the light blocking structure is provided with a plurality of cavities which are arranged in an array mode, the cavities are respectively arranged corresponding to the light emitting diodes, and the light blocking structure is used for blocking light rays emitted by the light emitting diodes from being emitted to the non-corresponding cavities; and the number of the first and second groups,

2. The display screen of claim 1, wherein the light blocking structure comprises a light blocking layer and a light blocking layer, the light blocking layer and the light blocking layer are integrally or separately disposed, the cavity comprises a first cavity and a second cavity which are communicated, the light blocking layer is formed with a plurality of first cavities arranged in an array, the plurality of light conversion blocks are respectively disposed in the plurality of first cavities, the light blocking layer is disposed on a side of the light blocking layer facing the light emitting diodes, and the light blocking layer is formed with a plurality of second cavities arranged in an array.

3. The display screen according to claim 2, wherein the light blocking layer comprises a plurality of layers, the plurality of layers of light blocking layers are sequentially stacked in a direction from the light emitting diode to the corresponding light conversion block, and a side of the light blocking layer closest to the light emitting structure, which faces the light emitting structure, is provided with the light blocking layer;

the light conversion structures are arranged on the light resistance layers respectively.

4. A display screen according to claim 1, wherein for the light-blocking structure located between any two adjacent light conversion blocks, the side of the light-blocking structure facing the light-emitting structure has a dimension a1, and the side of the light-blocking structure facing away from the light-emitting structure has a dimension a2, a1 ≦ a 2.

5. The display screen of claim 1, wherein the light-exiting side has a light-exiting surface, the non-light-exiting side has a plurality of non-light-exiting surfaces, and at least one of the non-light-exiting surfaces is provided with the reflective layer.

6. A display screen as recited in any one of claims 1-5, wherein the light exit side of the LEDs is provided with microstructures, and the microstructures are configured to focus light emitted by the LEDs.

7. A display screen according to any one of claims 1 to 5, wherein the light exit sides of the light emitting diodes are at least partially located within the cavities such that the light blocking structures are located at the periphery of the light emitting diodes.

8. The display screen according to claim 7, wherein the light emitting diode has a light emitting surface located on the light emitting side, the light blocking structure has a top surface located on a side facing the light emitting structure, and a distance between the light emitting surface and the top surface in a direction from the light emitting structure to the light blocking structure is h, where h is greater than 0 μm and less than or equal to 10 μm.

9. The display screen of claim 7, wherein the light emitting diodes are spaced apart from the light blocking structure along the array direction of the light emitting diodes, and the light emitting diodes are spaced apart from the corresponding light conversion blocks along the direction from the light emitting diodes to the corresponding light conversion blocks.

10. An electronic device, comprising: a display screen as claimed in any one of claims 1 to 9.