CN212624640U

CN212624640U - Light-emitting module, display screen and display

Info

Publication number: CN212624640U
Application number: CN202020883217.2U
Authority: CN
Inventors: 刁鸿浩; 黄玲溪
Original assignee: Vision Technology Venture Capital Pte Ltd; Beijing Ivisual 3D Technology Co Ltd
Current assignee: Beijing Ivisual 3D Technology Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-02-26
Anticipated expiration: 2030-05-22

Abstract

The application relates to the technical field of display, and discloses a light-emitting module, include: the light emitting device comprises an electric connection layer, a light emitting unit layer and a light conversion layer; wherein, the light-emitting unit layer is not provided with an epitaxial growth substrate, or is provided with an epitaxial growth substrate at least partially covering the light-emitting unit layer. This light emitting module, through do not set up the epitaxial growth substrate that is used for forming the luminescence unit layer in the light emitting module who forms, or set up the epitaxial growth substrate that at least part covers the luminescence unit layer, avoid epitaxial growth substrate to cause the influence to the light that supports the demonstration as far as possible, be favorable to improving display effect. The application also discloses a display module assembly, a display screen and a display.

Description

Light-emitting module, display screen and display

Technical Field

The application relates to the technical field of display, for example, relate to a luminous module, display module assembly, display screen and display.

Background

Currently, a light emitting cell layer that can be used for display may be formed on a substrate in an epitaxial growth manner.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the epitaxial growth substrate used to form the light emitting cell layer is likely to affect the light supporting the display, thereby affecting the display effect.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a light-emitting module, a display screen and a display, which aims to solve the technical problem that the epitaxial growth substrate used for forming a light-emitting unit layer easily influences the light supporting display and further influences the display effect.

The luminous module that this disclosed embodiment provided includes: the light emitting device comprises an electric connection layer, a light emitting unit layer and a light conversion layer; wherein, the light-emitting unit layer is not provided with an epitaxial growth substrate, or is provided with an epitaxial growth substrate at least partially covering the light-emitting unit layer.

In some embodiments, the light emitting cell layer is not provided with an epitaxial growth substrate, and the light conversion layer may be directly provided with the light emitting cell layer.

In some embodiments, an intermediate layer structure not belonging to the epitaxial growth substrate may be further disposed between the light conversion layer and the light emitting unit layer.

In some embodiments, the intermediate layer structure may or may not be in direct contact with the light emitting cell layer.

In some embodiments, the light emitting cell layer may be provided with an epitaxial growth substrate, wherein:

the epitaxial growth substrate may cover a part or all of the non-light-transmitting region of the light emitting cell layer; or

The epitaxial growth substrate can partially cover the light-transmitting area of the light-emitting unit layer; or

The epitaxial growth substrate may cover a part or all of the non-light transmission region of the light emitting cell layer and a light transmission region partially covering the light emitting cell layer.

In some embodiments, the intermediate layer structure may or may not be in direct contact with the light emitting cell layer in areas of the light emitting cell layer not covered by the epitaxial growth substrate. Alternatively, the intermediate layer structure may or may not be in direct contact with the epitaxial growth substrate in the region of the light emitting cell layer covered by the epitaxial growth substrate.

In some embodiments, in the case where the light emitting module is provided with an epitaxial growth substrate, part or all of the epitaxial growth substrate may be thinned.

In some embodiments, the intermediate layer structure may be disposed independently of the light emitting cell layer and the light conversion layer. Alternatively, the intermediate layer structure may include a partial structure of at least one of the light emitting unit layer and the light conversion layer.

In some embodiments, the intermediate layer structure may include an underlayer in the light conversion layer for carrying the light conversion material.

In some embodiments, the intermediate layer structure may comprise a light transmissive material.

In some embodiments, a light emitting cell layer may be disposed between the electrical connection layer and the light conversion layer.

In some embodiments, the light conversion layer may be disposed on the light emitting surface of the light emitting unit layer.

In some embodiments, the light conversion layer may include a plurality of pixel cells.

In some embodiments, the plurality of pixel units may include: at least one of the pixels and the sub-pixels.

In some embodiments, at least two of the plurality of pixel cells may comprise the same or different light conversion materials.

In some embodiments, the electrical connection layer may be disposed on a backlight surface of the light emitting cell layer.

In some embodiments, the electrical connection layer may be provided with a plurality of conductive holes, and the electrical connection layer may be electrically connected with the light emitting cell layer through the plurality of conductive holes.

In some embodiments, the electrical connection layers may include at least a first electrical connection layer, a second electrical connection layer; the first and second electrical connection layers may be electrically connected to the light emitting unit layer through a plurality of conductive holes.

In some embodiments, the light emitting cell layer may be provided with a plurality of light emitting cells, and at least one of the plurality of light emitting cells may be provided with at least one first electrode and at least one second electrode. Optionally, the plurality of conductive vias may include at least a first plurality of conductive vias and a second plurality of conductive vias. Alternatively, the at least one first electrode may be electrically connected to the first electrical connection layer through at least one of the plurality of first conductive vias, and the at least one second electrode may be electrically connected to the second electrical connection layer through at least one of the plurality of second conductive vias.

In some embodiments, each of the plurality of light emitting cells may be provided with a first electrode, a second electrode. Optionally, the plurality of conductive vias may include a plurality of first conductive vias and a plurality of second conductive vias. Alternatively, the first electrodes of different ones of the plurality of light emitting cells may be electrically connected to the first electrical connection layer through different first conductive holes, and the second electrodes of different ones of the plurality of light emitting cells may be electrically connected to the second electrical connection layer through different second conductive holes.

In some embodiments, at least one of the first and second electrical connection layers may be arranged in the following manner:

the first electric connection layer comprises at least one layer of first conductive routing;

the second electrical connection layer comprises at least one layer of second conductive traces.

In some embodiments, at least one of the first conductive traces and the second conductive traces may be arranged in an array.

In some embodiments, at least one of the first conductive traces and the second conductive traces can be arranged in an array in rows or columns.

In some embodiments, the plurality of light emitting units may be arranged in an array.

In some embodiments, the plurality of light emitting cells may be arranged in an array in the form of rows or columns.

In some embodiments, the first electrodes of the light emitting cells of at least one row may be electrically connected to the same first conductive trace, and the second electrodes of the light emitting cells of at least one column may be electrically connected to the same second conductive trace.

In some embodiments, the plurality of light emitting units may include: at least one of a Light Emitting Diode (LED), a Mini (Mini) LED, and a Micro (Micro) LED.

The display module provided by the embodiment of the disclosure comprises the light-emitting module.

The display screen provided by the embodiment of the disclosure comprises the display module.

The display provided by the embodiment of the disclosure comprises the display screen.

The luminous module, the display screen and the display provided by the embodiment of the disclosure can realize the following technical effects:

through not setting up the epitaxial growth substrate that is used for forming the luminescence unit layer in the luminescence module that forms, or set up the epitaxial growth substrate that at least part covers the luminescence unit layer, avoid epitaxial growth substrate to cause the influence to the light that supports the demonstration as far as possible, be favorable to improving display effect.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1A and 1B are schematic structural diagrams of a light emitting module according to an embodiment of the disclosure;

fig. 2 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 3A and 3B are schematic structural diagrams of another light emitting module provided in the present disclosure;

fig. 4A, 4B, 4C, 4D, 4E, 4F, 4G, and 4H are schematic views of another structure of the light emitting module according to the embodiment of the disclosure;

fig. 5 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 6A, 6B, 6C, and 6D are schematic structural diagrams of another light emitting module provided in the embodiment of the present disclosure;

fig. 7A, 7B, and 7C are schematic views of another structure of the light emitting module according to the embodiment of the disclosure;

fig. 8A, 8B, and 8C are schematic views of another structure of the light emitting module according to the embodiment of the disclosure;

fig. 9 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of an interlayer structure provided by an embodiment of the present disclosure;

fig. 11 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a light conversion layer provided by an embodiment of the present disclosure;

fig. 13 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 14 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 15 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 16 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 17 is another schematic structural diagram of a light emitting module provided in the embodiment of the present disclosure;

fig. 18A and 18B are schematic structural diagrams of an electrical connection layer provided in an embodiment of the present disclosure;

fig. 19A, 19B, 19C, and 19D are schematic layout views of conductive traces according to an embodiment of the disclosure;

fig. 20A, 20B, and 20C are schematic arrangement diagrams of the light emitting unit provided in the embodiment of the present disclosure;

fig. 21A, 21B, 21C, and 21D are schematic diagrams illustrating connection relationships between electrodes and conductive traces according to an embodiment of the disclosure;

fig. 22 is a schematic structural diagram of a display module according to an embodiment of the disclosure;

FIG. 23 is a schematic structural diagram of a display screen provided by an embodiment of the present disclosure;

fig. 24 is a schematic structural diagram of a display provided in an embodiment of the present disclosure.

Reference numerals:

100: a light emitting module; 130: an electrical connection layer; 131: a conductive via; 133: a first electrical connection layer; 135: a second electrical connection layer; 137: a first conductive via; 139: a second conductive via; 141: a first conductive trace; 143: a second conductive trace; 150: a light emitting cell layer; 151: a light emitting unit; 153: a first electrode; 155: a second electrode; 170: a light conversion layer; 171: a pixel unit; 190: epitaxially growing a substrate; 210: an intermediate layer structure; 230: a non-light-transmitting region; 250: a light-transmitting region; 270: a bottom layer; 290: a light transmissive material; s: a light-emitting surface; p: a backlight surface; 500: a display module; 700: a display screen; 900: a display.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

Referring to fig. 1A and 1B, an embodiment of the present disclosure provides a light emitting module 100, including: an electrical connection layer 130, a light emitting unit layer 150, a light conversion layer 170; wherein the light emitting cell layer 150 is not provided with the epitaxial growth substrate 190, or is provided with the epitaxial growth substrate 190 at least partially covering the light emitting cell layer 150.

In this way, by not providing the epitaxial growth substrate 190 for forming the light emitting unit layer 150 in the formed light emitting module 100, or providing the epitaxial growth substrate 190 at least partially covering the light emitting unit layer 150, the influence of the epitaxial growth substrate 190 on the light supporting the display is avoided as much as possible, which is beneficial to improving the display effect.

In some embodiments, as shown in fig. 1A, the light emitting cell layer 150 is not provided with the epitaxial growth substrate 190.

In some embodiments, as shown in fig. 1B, the light emitting cell layer 150 is provided with an epitaxial growth substrate 190 at least partially covering the light emitting cell layer 150. Alternatively, the epitaxial growth substrate 190 may partially cover the light emitting cell layer 150, or completely cover the light emitting cell layer 150.

In some embodiments, regardless of whether the light emitting cell layer 150 in the formed light emitting module 100 is provided with the epitaxial growth substrate 190, the light emitting cell layer 150 may be formed on the epitaxial growth substrate 190 in an epitaxial growth manner or the like during the formation of the light emitting module 100, and then the epitaxial growth substrate 190 may be partially or entirely removed from the light emitting cell layer 150. Alternatively, the manner of removing the epitaxial growth substrate 190 may be considered according to practical situations such as process requirements, for example: the epitaxial growth substrate 190 is partially or entirely peeled off from the light emitting cell layer 150 in a chemical, physical, or the like manner.

In some embodiments, as shown in fig. 1A, the light emitting unit layer 150 is not provided with the epitaxial growth substrate 190, and the light conversion layer 170 may be directly provided to the light emitting unit layer 150.

Referring to fig. 2, in some embodiments, an intermediate layer structure 210 not belonging to the epitaxial growth substrate 190 may be further disposed between the light conversion layer 170 and the light emitting cell layer 150.

Referring to fig. 3A, 3B, in conjunction with fig. 2, in some embodiments, the intermediate layer structure 210 may or may not be in direct contact with the light emitting cell layer 150.

In some embodiments, as shown in fig. 2, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150. Alternatively, the entire area of the face of the intermediate layer structure 210 facing the light emitting cell layer 150 may be in direct contact with the light emitting cell layer 150.

In some embodiments, as shown in fig. 3A, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150. Alternatively, a partial region of the face of the intermediate layer structure 210 facing the light emitting cell layer 150 may be in direct contact with the light emitting cell layer 150. Alternatively, other media may be present or other structures may be provided in regions of the interlayer structure 210 that are not in direct contact with the light emitting cell layer 150.

In some embodiments, as shown in fig. 3B, the intermediate layer structure 210 may not be in direct contact with the light emitting cell layer 150. Alternatively, other media may be present or other structures may be provided in regions of the interlayer structure 210 that are not in direct contact with the light emitting cell layer 150.

Referring to fig. 4A, 4B, 4C, 4D, 4E, 4F, 4G, 4H, in some embodiments, the light emitting cell layer 150 may be provided with an epitaxial growth substrate 190, wherein:

the epitaxial growth substrate 190 may cover a part or all of the non-light transmission region 230 of the light emitting cell layer 150; or

The epitaxial growth substrate 190 may partially cover the light transmission region 250 of the light emitting cell layer 150; or

The epitaxial growth substrate 190 may cover a part or all of the non-light transmission region 230 of the light emitting cell layer 150 and partially cover the light transmission region 250 of the light emitting cell layer 150.

In some embodiments, referring to fig. 4A, 4B, 4C, and 4D, the epitaxial growth substrate 190 may cover a part or all of the non-light transmissive region 230 of the light emitting cell layer 150.

In some embodiments, as shown in fig. 4A, the epitaxial growth substrate 190 may cover a portion of the non-light transmissive region 230 of the light emitting cell layer 150 among all the non-light transmissive region 230 of the light emitting cell layer 150. Alternatively, for at least one non-light transmitting region 230 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover the whole of the non-light transmitting region 230. Optionally, some of the opaque regions 230 (e.g., at least one opaque region 230) of the light emitting cell layer 150 may not be covered by the epitaxial growth substrate 190. Alternatively, in the case where the epitaxial growth substrate 190 covers the entirety of the at least one non-light transmission region 230 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover a portion of the at least one non-light transmission region 230 of the light emitting cell layer 150 (as shown in fig. 4B).

In some embodiments, as shown in fig. 4B, the epitaxial growth substrate 190 may cover a portion of the non-light transmissive region 230 of the light emitting cell layer 150 among all the non-light transmissive region 230 of the light emitting cell layer 150. Alternatively, for at least one non-light transmitting region 230 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover a portion of the non-light transmitting region 230. Optionally, some of the opaque regions 230 (e.g., at least one opaque region 230) of the light emitting cell layer 150 may not be covered by the epitaxial growth substrate 190. Alternatively, in the case where the epitaxial growth substrate 190 covers a portion of the at least one non-light transmission region 230 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover the entirety of the at least one non-light transmission region 230 of the light emitting cell layer 150 (as shown in fig. 4A).

In some embodiments, as shown in fig. 4C, the epitaxial growth substrate 190 may cover a portion of the non-light transmissive region 230 of the light emitting cell layer 150 among all the non-light transmissive region 230 of the light emitting cell layer 150. Alternatively, the epitaxial growth substrate 190 may cover a portion of each of the non-light transmitting regions 230 for each of the non-light transmitting regions 230 of the light emitting cell layer 150.

In some embodiments, as shown in fig. 4D, the epitaxial growth substrate 190 may cover the entirety of the non-light-transmitting region 230 of the light emitting cell layer 150 among all the non-light-transmitting regions 230 of the light emitting cell layer 150.

In some embodiments, the epitaxial growth substrate 190 may cover part or all of the non-light-transmitting region 230 of the light emitting cell layer 150 according to practical circumstances such as process requirements. Alternatively, in the case where the epitaxial growth substrate 190 covers a portion of the non-light transmission region 230 of the light emitting cell layer 150, the different covering manners described above, or other possible covering manners may be considered according to practical circumstances such as process requirements.

In some embodiments, referring to fig. 4E, 4F, whether the epitaxial growth substrate 190 covers part or all of the non-light transmissive region 230 of the light emitting cell layer 150, the epitaxial growth substrate 190 may partially cover the light transmissive region 250 of the light emitting cell layer 150. Alternatively, the arrow pattern shown in the drawing exemplarily represents the direction of a portion of light of the light emitting cell layer 150. Alternatively, the light transmission region 250 of the light emitting cell layer 150 is surrounded by a dotted line for easy recognition.

In some embodiments, as shown in fig. 4E, the epitaxial growth substrate 190 may partially cover the light-transmitting region 250 of the light emitting cell layer 150. Alternatively, the epitaxial growth substrate 190 may cover a portion of each light transmission region 250 for each light transmission region 250 of the light emitting cell layer 150. Alternatively, in the case where the epitaxial growth substrate 190 covers a portion of the at least one light transmission region 250 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover the entirety of the at least one light transmission region 250 of the light emitting cell layer 150.

In some embodiments, as shown in fig. 4F, the epitaxial growth substrate 190 may partially cover the light-transmitting region 250 of the light emitting cell layer 150. Alternatively, for at least one light transmitting region 250 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover a portion of the light transmitting region 250. Optionally, some of the light-transmissive regions 250 (e.g., at least one light-transmissive region 250) of the light-emitting cell layer 150 may not be covered by the epitaxial growth substrate 190. Alternatively, in the case where the epitaxial growth substrate 190 covers a portion of the at least one light transmission region 250 of the light emitting cell layer 150, the epitaxial growth substrate 190 may cover the entirety of the at least one light transmission region 250 of the light emitting cell layer 150.

In some embodiments, as shown in fig. 4G, the epitaxial growth substrate 190 may cover a portion of the non-light transmissive region 230 of the light emitting cell layer 150 and partially cover the light transmissive region 250 of the light emitting cell layer 150.

In some embodiments, as shown in fig. 4H, the epitaxial growth substrate 190 may cover the entire non-light-transmitting region 230 of the light emitting cell layer 150 and partially cover the light-transmitting region 250 of the light emitting cell layer 150.

Fig. 4G and 4H only exemplarily show a case where the light-transmitting region 250 and the non-light-transmitting region 230 of the light-emitting cell layer 150 are covered by the epitaxial growth substrate 190. In some embodiments, the different cases (and descriptions related to the figures) in which the non-light-transmitting region 230 of the light emitting cell layer 150 is covered by the epitaxial growth substrate 190 shown in fig. 4A, 4B, 4C, and 4D may be combined with the different cases (and descriptions related to the figures) in which the light-transmitting region 250 of the light emitting cell layer 150 is covered by the epitaxial growth substrate 190 shown in fig. 4E and 4F to obtain different cases in which the light-transmitting region 250 and the non-light-transmitting region 230 of the light emitting cell layer 150 are covered by the epitaxial growth substrate 190. Alternatively, other possible situations that the light-transmitting region 250 and the non-light-transmitting region 230 of the light-emitting unit layer 150 are covered by the epitaxial growth substrate 190 may also be obtained according to practical situations such as process requirements.

Referring to fig. 5, in some embodiments, an intermediate layer structure 210 not belonging to the epitaxial growth substrate 190 may be further disposed between the light conversion layer 170 and the light emitting cell layer 150.

Referring to fig. 6A, 6B, 6C, 6D, in some embodiments, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150 or not in direct contact with the light emitting cell layer 150 in a region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190. Alternatively, the intermediate layer structure 210 may be in direct contact with the epitaxial growth substrate 190 or not in direct contact with the epitaxial growth substrate 190 in the region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190.

Referring to fig. 6A, 6B, in conjunction with fig. 5, in some embodiments, the interlayer structure 210 may be in direct contact with the light emitting cell layer 150 or not in direct contact with the light emitting cell layer 150 at a region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190.

In some embodiments, in conjunction with fig. 5, the intermediate layer structure 210 may not be in direct contact with the light emitting cell layer 150 in all of the regions of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190.

In some embodiments, as shown in fig. 6A, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150 at a region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190. Alternatively, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150 at a portion of the region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190; in another portion of the region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190, the intermediate layer structure 210 may not be in direct contact with the light emitting cell layer 150.

In some embodiments, as shown in fig. 6B, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150 at a region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190. Alternatively, the intermediate layer structure 210 may be in direct contact with the light emitting cell layer 150 in all of the regions of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190.

In some embodiments, the contact condition between the intermediate layer structure 210 and the light emitting cell layer 150 in the region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190 may be determined according to practical conditions such as process requirements.

In some embodiments, referring to fig. 6C, 6D, whether or not the intermediate layer structure 210 is in direct contact with the light emitting cell layer 150 in the region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190; in the region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190, the intermediate layer structure 210 may be in direct contact with the epitaxial growth substrate 190 or not in direct contact with the epitaxial growth substrate 190.

In some embodiments, as shown in fig. 6C, the intermediate layer structure 210 may be in direct contact with the epitaxial growth substrate 190 at the region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190. Alternatively, the intermediate layer structure 210 may be in direct contact with the epitaxial growth substrate 190 at a portion of the region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190; in another portion of the region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190, the intermediate layer structure 210 may not be in direct contact with the epitaxial growth substrate 190.

In some embodiments, as shown in fig. 6D, the intermediate layer structure 210 may not be in direct contact with the epitaxial growth substrate 190 in all of the area of the light emitting cell layer 150 covered by the epitaxial growth substrate 190.

In some embodiments, other media may be present or other structures may be provided in areas of the interlayer structure 210 that are not in direct contact with the light emitting cell layer 150.

In some embodiments, other dielectrics or other structures may be present or provided in regions of the intermediate layer structure 210 that are not in direct contact with the epitaxial growth substrate 190.

Fig. 6C and 6D only exemplarily show a contact between the intermediate layer structure 210 and the epitaxial growth substrate 190 in a region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190. In some embodiments, the different contact conditions (and the description related to the figures) between the intermediate layer structure 210 and the light emitting cell layer 150 in the region of the light emitting cell layer 150 not covered by the epitaxial growth substrate 190 shown in fig. 5, 6A, 6B may be combined with the different contact conditions (and the description related to the figures) between the intermediate layer structure 210 and the epitaxial growth substrate 190 in the region of the light emitting cell layer 150 covered by the epitaxial growth substrate 190 shown in fig. 6C, 6D to obtain different contact conditions between the intermediate layer structure 210 and the light emitting cell layer 150, the epitaxial growth substrate 190. Optionally, other possible contact conditions between the intermediate layer structure 210 and the light emitting unit layer 150 and the epitaxial growth substrate 190 may also be obtained according to practical conditions such as process requirements.

Referring to fig. 7A, 7B, and 7C, in some embodiments, in the case where the light emitting module 100 is provided with the epitaxial growth substrate 190, a part or all of the epitaxial growth substrate 190 is thinned.

In some embodiments, as shown in fig. 7A, in the case where the light emitting module 100 is provided with the epitaxial growth substrate 190, a portion of the epitaxial growth substrate 190 is thinned. Alternatively, the thinned portions and the non-thinned portions of the epitaxial growth substrate 190 may be alternately disposed.

In some embodiments, as shown in fig. 7B, in the case where the light emitting module 100 is provided with the epitaxial growth substrate 190, a portion of the epitaxial growth substrate 190 is thinned. Optionally, at least a portion or all of the thinned portion of the epitaxial growth substrate 190 may be regionally disposed with at least a portion or all of the non-thinned portion, for example: the entirety of the thinned portion of the epitaxial growth substrate 190 may be disposed at one region in the epitaxial growth substrate 190, and the entirety of the non-thinned portion of the epitaxial growth substrate 190 may be disposed at another region in the epitaxial growth substrate 190. Alternatively, the above-described regions may be continuous regions, or dispersed regions.

In some embodiments, as shown in fig. 7C, in the case where the light emitting module 100 is provided with the epitaxial growth substrate 190, the entirety of the epitaxial growth substrate 190 is thinned.

In some embodiments, whether to thin the epitaxial growth substrate 190 may be determined based on practical circumstances such as process requirements. Alternatively, it may be determined to thin part or all of the epitaxial growth substrate 190 according to practical circumstances such as process requirements. Optionally, in the case of thinning the epitaxial growth substrate 190, the thickness of the formed light emitting module 100 may be reduced, which is beneficial to improving the display effect.

Referring to fig. 8A, 8B, and 8C in conjunction with fig. 1A and 2, in some embodiments, the intermediate layer structure 210 may be disposed independently of the light emitting cell layer 150 and the light conversion layer 170, regardless of whether the epitaxial growth substrate 190 is disposed. Alternatively, the intermediate layer structure 210 may include a partial structure of at least one of the light emitting unit layer 150 and the light conversion layer 170, whether or not the epitaxial growth substrate 190 is provided.

The epitaxial growth substrate 190 is not shown in fig. 8A, 8B, 8C for convenience and simplicity of description. In some embodiments, the arrangement relationship between the intermediate layer structure 210 and the light emitting unit layers 150 and the light conversion layer 170 shown in fig. 8A, 8B and 8C can be combined with the related description of the epitaxial growth substrate 190 and the attached drawings, to obtain more possible arrangement relationships between the intermediate layer structure 210 and the epitaxial growth substrate 190, the light emitting unit layers 150 and the light conversion layer 170.

In some embodiments, as shown in fig. 1A, 2, in the case where the epitaxial growth substrate 190 is not provided and the epitaxial growth substrate 190 is provided, the intermediate layer structure 210 may be provided independently of the light emitting unit layer 150 and the light conversion layer 170.

In some embodiments, as shown in fig. 8A, the intermediate layer structure 210 may include a partial structure of the light emitting cell layer 150, such as: a portion of the structure in the intermediate layer structure 210 may be formed as a part of the light emitting cell layer 150.

In some embodiments, as shown in fig. 8B, the intermediate layer structure 210 may include a partial structure of the light conversion layer 170, such as: a portion of the structure in the intermediate layer structure 210 may be a part of the light conversion layer 170.

In some embodiments, as shown in fig. 8C, the intermediate layer structure 210 may include a partial structure of the light emitting unit layer 150, and may further include a partial structure of the light conversion layer 170, for example: part of the structure in the intermediate layer structure 210 may be a part of the light emitting unit layer 150, and part of the structure in the intermediate layer structure 210 may be a part of the light conversion layer 170.

Referring to fig. 9, in some embodiments, the intermediate layer structure 210 may include an underlayer 270 for carrying a light conversion material in the light conversion layer 170, for example: part of the structure in the middle layer structure 210 may serve as a bottom layer 270 for carrying a light conversion material in the light conversion layer 170.

In some embodiments, in the case where the epitaxial growth substrate 190 is not provided, the arrangement relationship between the intermediate layer structure 210 and the light emitting unit layers 150 and the light conversion layer 170 may be considered according to practical situations such as process requirements; the intermediate layer structure 210 may be disposed independently of the light emitting unit layer 150 and the light conversion layer 170, or may include a partial structure of at least one of the light emitting unit layer 150 and the light conversion layer 170. Alternatively, in the case where the epitaxial growth substrate 190 is provided, the arrangement relationship between the intermediate layer structure 210 and the epitaxial growth substrate 190, the light emitting unit layers 150, and the light conversion layer 170 may be considered according to actual conditions such as process requirements; the intermediate layer structure 210 may be provided independently of the epitaxial growth substrate 190, the light emitting unit layer 150, and the light conversion layer 170, or may include a partial structure of at least one of the epitaxial growth substrate 190, the light emitting unit layer 150, and the light conversion layer 170.

Referring to fig. 10, in some embodiments, the intermediate layer structure 210 may include a light transmissive material 290. Alternatively, the light transmissive material 290 may be disposed in a partial or entire region in the intermediate layer structure 210. Alternatively, the disposed region of the light transmissive material 290 in the intermediate layer structure 210 may correspond to a part or all of the light transmissive region 250 of the light emitting cell layer 150, so that part or all of the light emitted from the light emitting cell layer 150 can be transmitted through the intermediate layer structure 210. Alternatively, the disposed region of the light transmissive material 290 in the intermediate layer structure 210 may correspond to a part or all of the non-light transmissive region 230 of the light emitting cell layer 150.

In some embodiments, the region of the light transmissive material 290 disposed in the intermediate layer structure 210 may be considered according to process requirements and other practical conditions.

In some embodiments, the middle layer structure 210 may protect structures on both sides, such as: the interlayer structure 210 may prevent the light emitting unit layer 150 from being affected by the light conversion material (or other impurities) in the light conversion layer 170, etc. entering the light emitting unit layer 150.

In some embodiments, where the intermediate layer structure 210 is insulating, the intermediate layer structure 210 may also serve as an insulating layer.

In some embodiments, the refractive index of the intermediate layer structure 210 may be set according to practical situations such as process requirements, so that the intermediate layer structure 210 may be used as a refractive index gradient layer for structures on both sides to alleviate the problem that the refractive index difference between the structures on both sides of the intermediate layer structure 210 is too large, which may reduce the light reflection loss of the light emitting unit layer 150, for example: the refractive index of the intermediate layer structure 210 is set to be between the refractive indices of the structures on both sides of the intermediate layer structure 210.

In some embodiments, the light emitting unit layer 150 may be disposed between the electrical connection layer 130 and the light conversion layer 170.

Referring to fig. 11, in some embodiments, the light conversion layer 170 may be disposed on the light emitting surface S of the light emitting unit layer 150.

Referring to fig. 12, in some embodiments, the light conversion layer 170 may include a plurality of pixel units 171.

In some embodiments, the plurality of pixel units 171 may include: at least one of the pixels and the sub-pixels.

In some embodiments, the plurality of pixel units 171 may include at least one pixel. Alternatively, the plurality of pixel units 171 may include at least one sub-pixel. Alternatively, the plurality of pixel units 171 may include at least one pixel, and at least one sub-pixel.

In some embodiments, the pixel units 171 may be arranged according to practical situations such as process requirements, so that the plurality of pixel units 171 include at least one of pixels and sub-pixels. Alternatively, whether pixels or sub-pixels are included, other display (e.g., photo-conversion) structures besides pixels or sub-pixels may be included in the pixel unit 171.

In some embodiments, at least two pixel cells 171 of the plurality of pixel cells 171 may comprise the same or different light conversion materials. Alternatively, the main or all components in the light conversion material may include at least one of a phosphor, a quantum dot, and the like.

Referring to fig. 13, in some embodiments, the electrical connection layer 130 may be disposed on the backlight surface P of the light emitting cell layer 150.

Referring to fig. 14, in some embodiments, the electrical connection layer 130 may be provided with a plurality of conductive holes 131, and the electrical connection layer 130 may be electrically connected to the light emitting cell layer 150 through the plurality of conductive holes 131.

Referring to fig. 15, in some embodiments, the electrical connection layer 130 may include at least a first electrical connection layer 133 and a second electrical connection layer 135. optionally, the first and second electrical connection layers 133 and 135 may be electrically connected to the light emitting cell layer 150 through a plurality of conductive holes 131.

Referring to fig. 16, in some embodiments, the light emitting cell layer 150 may be provided with a plurality of light emitting cells 151, and at least one of the plurality of light emitting cells 151 may be provided with at least one first electrode 153 and at least one second electrode 155. Optionally, the plurality of conductive vias 131 may include at least a first plurality of conductive vias 137, a second plurality of conductive vias 139. Alternatively, the at least one first electrode 153 may be electrically connected to the first electrical connection layer 133 through at least one of the plurality of first conductive holes 137, and the at least one second electrode 155 may be electrically connected to the second electrical connection layer 135 through at least one of the plurality of second conductive holes 139.

Referring to fig. 17, in some embodiments, each of the plurality of light emitting cells 151 may be provided with a first electrode 153, a second electrode 155. Optionally, the plurality of conductive vias 131 may include a plurality of first conductive vias 137, a plurality of second conductive vias 139. Alternatively, the first electrodes 153 of different ones of the plurality of light emitting cells 151 may be electrically connected to the first electrical connection layer 133 through different first conductive holes 137, and the second electrodes 155 of different ones of the plurality of light emitting cells 151 may be electrically connected to the second electrical connection layer 135 through different second conductive holes 139.

Referring to fig. 18A, 18B, in some embodiments, at least one of the first and second electrical connection layers 133 and 135 may be disposed in the following manner:

the first electrical connection layer 133 includes at least one layer of the first conductive trace 141;

the second electrical connection layer 135 includes at least one layer of second conductive traces 143.

In some embodiments, as shown in fig. 18A, different layers of the first conductive trace 141 are illustrated from top to bottom in the first electrical connection layer 133. Optionally, each line segment in the first electrical connection layer 133 represents a layer of the first conductive trace 141.

In some embodiments, as shown in fig. 18B, different layers of the second conductive traces 143 are illustrated from top to bottom in the second electrical connection layer 135. Optionally, each line segment in the second electrical connection layer 135 represents a layer of the second conductive trace 143.

Referring to fig. 19A, 19B, 19C, and 19D, in some embodiments, at least one of the first conductive traces 141 and the second conductive traces 143 may be arranged in an array.

In some embodiments, at least one of the first conductive traces 141 and the second conductive traces 143 may be arranged in an array in the form of rows or columns.

In some embodiments, as shown in fig. 19A and 19B, the first conductive traces 141 may be arranged in an array in the form of rows, and the second conductive traces 143 may be arranged in an array in the form of columns. Alternatively, as shown in fig. 19C and 19D, the first conductive traces 141 may be arranged in a column form in an array, and the second conductive traces 143 may be arranged in a row form in an array.

As shown in fig. 19A, 19B, 19C, and 19D, the array arrangement of the first conductive traces 141 and the second conductive traces 143 may be in a row-to-row manner. Alternatively, the array arrangement of the first conductive trace 141 and the second conductive trace 143 may be different from that shown in fig. 19A, 19B, 19C, and 19D, but may be arranged in other array shapes, for example: circular, oval, triangular and other array arrangement modes.

Referring to fig. 20A, 20B, and 20C, in some embodiments, the plurality of light emitting units 151 may be arranged in an array.

In some embodiments, the plurality of light emitting units 151 may be arranged in an array in the form of rows or columns.

In some embodiments, as shown in fig. 20A, the plurality of light emitting cells 151 may be arranged in an array in the form of a row. Alternatively, at least one row of the light emitting units 151 may be provided, for example: one, two, three or more rows of light emitting cells 151.

In some embodiments, as shown in fig. 20B, the plurality of light emitting units 151 may be arranged in an array in the form of columns. Alternatively, at least one column of the light emitting units 151 may be provided, for example: one, two, three or more columns of light emitting units 151.

In some embodiments, as shown in fig. 20C, the plurality of light emitting cells 151 may be arranged in an array in the form of rows and columns. Alternatively, a plurality of rows and columns of the light emitting cells 151 may be disposed.

As shown in fig. 20A, 20B, and 20C, the array arrangement of the plurality of light emitting units 151 may be of a determinant type. Alternatively, the array arrangement of the plurality of light emitting units 151 may be different from that shown in fig. 20A, 20B, and 20C, but may be arranged in other array shapes, for example: circular, oval, triangular and other array arrangement modes.

Referring to fig. 21A, 21B, 21C, and 21D, in some embodiments, the first electrodes 153 of the light emitting cells 151 of at least one row may be electrically connected to the same first conductive trace 141, and the second electrodes 155 of the light emitting cells 151 of at least one column may be electrically connected to the same second conductive trace 143.

In some embodiments, as shown in fig. 21A, the first electrodes 153 of the plurality of light emitting cells 151 of one row are electrically connected with the same first conductive trace 141.

In some embodiments, as shown in fig. 21B, the first electrodes 153 of the plurality of light emitting cells 151 of at least two rows are electrically connected to the same first conductive trace 141, for example: the first electrodes 153 of the light emitting cells 151 of two, three or more rows are electrically connected to the same first conductive trace 141.

In some embodiments, as shown in fig. 21C, the second electrodes 155 of the plurality of light emitting cells 151 of one column are electrically connected to the same second conductive trace 143.

In some embodiments, as shown in fig. 21D, the second electrodes 155 of the plurality of light emitting cells 151 of at least two columns are electrically connected to the same second conductive trace 143, for example: the second electrodes 155 of the light emitting cells 151 of two, three or more columns are electrically connected to the same second conductive trace 143.

In some embodiments, the number of rows and columns of the electrodes electrically connected to the same conductive trace may be determined according to practical conditions such as process requirements. Optionally, the number of rows of the first electrodes 153 electrically connected to the same first conductive trace 141 may be determined according to practical conditions such as process requirements, and the number of columns of the second electrodes 155 electrically connected to the same second conductive trace 143 may be determined according to practical conditions such as process requirements.

In some embodiments, the plurality of light emitting units 151 may include: at least one of LED, Mini LED and Micro LED. Alternatively, the plurality of light emitting units 151 may include at least one LED. Alternatively, the plurality of light emitting units 151 may include at least one Mini LED. Alternatively, the plurality of light emitting units 151 may include at least one Micro LED. Alternatively, the plurality of light emitting units 151 may include at least one LED, and at least one Mini LED. Alternatively, the plurality of light emitting units 151 may include at least one LED, and at least one Micro LED. Alternatively, the plurality of light emitting units 151 may include at least one Mini LED, and at least one Micro LED. Alternatively, the plurality of light emitting units 151 may include at least one LED, at least one Mini LED, and at least one Micro LED. Alternatively, the plurality of light emitting units 151 may include other light emitting devices other than LEDs, Mini LEDs, Micro LEDs.

In some embodiments, the device type of the light emitting unit 151 may be determined according to actual conditions such as process requirements, for example: LED, Mini LED, Micro LED or other light emitting device.

Referring to fig. 22, an embodiment of the present disclosure provides a display module 500 including the light emitting module 100 described above. In some embodiments, the display module 500 may support 3D display.

Referring to fig. 23, an embodiment of the present disclosure provides a display screen 700 including the display module 500 described above. In some embodiments, the display screen 700 may perform a 3D display.

Referring to fig. 24, an embodiment of the present disclosure provides a display 900 including the display screen 700 described above. In some embodiments, display 900 may perform 3D display. In some embodiments, the display 900 may also include other components for supporting the normal operation of the display 900, such as: at least one of a communication interface, a frame, a control circuit, and the like.

The luminous module, the display screen and the display provided by the embodiment of the disclosure do not set the epitaxial growth substrate used for forming the luminous unit layer in the formed luminous module, or set the epitaxial growth substrate at least partially covering the luminous unit layer, so that the influence of the epitaxial growth substrate on the light supporting the display is avoided as much as possible, and the display effect is favorably improved.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It is clear to those skilled in the art that, for convenience and brevity of description, the working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit may be merely a division of a logical function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the drawings, the width, length, thickness, etc. of structures such as elements or layers may be exaggerated for clarity and descriptive purposes. When an element or layer is referred to as being "disposed on" (or "mounted on," "laid on," "attached to," "coated on," or the like) another element or layer, the element or layer may be directly "disposed on" or "over" the other element or layer, or intervening elements or layers may be present, or even partially embedded in the other element or layer.

Claims

1. A light emitting module, comprising: the light emitting device comprises an electric connection layer, a light emitting unit layer and a light conversion layer; wherein the content of the first and second substances,

the light emitting unit layer is not provided with an epitaxial growth substrate, or is provided with an epitaxial growth substrate at least partially covering the light emitting unit layer.

2. The light emitting module of claim 1, wherein the light emitting unit layer is not provided with the epitaxial growth substrate, and the light conversion layer is directly provided with the light emitting unit layer.

3. The light emitting module of claim 2, wherein an intermediate layer structure not belonging to the epitaxial growth substrate is further disposed between the light conversion layer and the light emitting unit layer.

4. The light emitting module of claim 3, wherein the interlayer structure is in direct contact with the light emitting cell layer or not in direct contact with the light emitting cell layer.

5. The light emitting module of claim 1, wherein the light emitting cell layer is provided with the epitaxial growth substrate, wherein:

the epitaxial growth substrate covers part or all of the non-light-transmitting area of the light-emitting unit layer; or

The epitaxial growth substrate partially covers the light-transmitting area of the light-emitting unit layer; or

The epitaxial growth substrate covers part or all of the non-light-transmitting region of the light-emitting unit layer, and partially covers the light-transmitting region of the light-emitting unit layer.

6. The light emitting module of claim 5, wherein an intermediate layer structure not belonging to the epitaxial growth substrate is further disposed between the light conversion layer and the light emitting unit layer.

7. The lighting module according to claim 6,

in the area of the light emitting unit layer not covered by the epitaxial growth substrate, the intermediate layer structure is in direct contact with the light emitting unit layer or is not in direct contact with the light emitting unit layer; or

In the area of the light emitting unit layer covered by the epitaxial growth substrate, the intermediate layer structure is in direct contact with the epitaxial growth substrate or is not in direct contact with the epitaxial growth substrate.

8. The light emitting module according to any one of claims 1 and 5 to 7, wherein in the case where the light emitting module is provided with the epitaxial growth substrate, part or all of the epitaxial growth substrate is thinned.

9. The lighting module according to claim 3, 4, 6 or 7,

the intermediate layer structure is arranged independently of the light emitting unit layer and the light conversion layer; or

The intermediate layer structure includes a partial structure of at least one of the light emitting unit layer and the light conversion layer.

10. The lighting module of claim 9, wherein the intermediate layer structure comprises a bottom layer of the light conversion layer for carrying a light conversion material.

11. The lighting module according to claims 3, 4, 6, and 7, wherein the intermediate layer structure comprises a light transmissive material.

12. The light emitting module according to any one of claims 1 to 7, wherein the light emitting unit layer is disposed between the electrical connection layer and the light conversion layer.

13. The light emitting module as claimed in claim 12, wherein the light conversion layer is disposed on the light emitting surface of the light emitting unit layer.

14. The light emitting module of claim 13, wherein the light conversion layer comprises a plurality of pixel units.

15. The illumination module of claim 14, wherein the plurality of pixel units comprises:

at least one of the pixels and the sub-pixels.

16. The illumination module of claim 15, wherein at least two of the plurality of pixel cells comprise the same or different light conversion materials.

17. The lighting module according to any one of claims 1 to 7, wherein the electrical connection layer is disposed on a backlight surface of the light emitting unit layer.

18. The lighting module of claim 17, wherein the electrical connection layer is provided with a plurality of conductive vias, and the electrical connection layer is electrically connected to the light emitting unit layer through the plurality of conductive vias.

19. The lighting module of claim 18, wherein the electrical connection layer comprises at least a first electrical connection layer, a second electrical connection layer; the first electric connection layer and the second electric connection layer are electrically connected with the light emitting unit layer through the plurality of conductive holes.

20. The lighting module of claim 19,

the light emitting unit layer is provided with a plurality of light emitting units, and at least one of the light emitting units is provided with at least one first electrode and at least one second electrode;

the plurality of conductive holes comprise at least a plurality of first conductive holes and a plurality of second conductive holes;

the at least one first electrode is electrically connected to the first electrical connection layer through at least one of the plurality of first conductive vias, and the at least one second electrode is electrically connected to the second electrical connection layer through at least one of the plurality of second conductive vias.

21. The lighting module of claim 20,

each of the plurality of light emitting cells is provided with a first electrode and a second electrode;

the plurality of conductive holes comprise a plurality of first conductive holes and a plurality of second conductive holes;

the first electrodes of different light emitting units in the plurality of light emitting units are electrically connected with the first electrical connection layer through different first conductive holes, and the second electrodes of different light emitting units in the plurality of light emitting units are electrically connected with the second electrical connection layer through different second conductive holes.

22. The lighting module of claim 20, wherein at least one of the first and second electrical connection layers is configured as follows:

23. The lighting module of claim 22, wherein at least one of the first conductive traces and the second conductive traces are arranged in an array.

24. The lighting module of claim 23, wherein at least one of the first conductive traces and the second conductive traces are arranged in an array in rows or columns.

25. The lighting module of claim 22, wherein the plurality of lighting units are arranged in an array.

26. The illumination module of claim 25, wherein the plurality of illumination units are arranged in an array in rows or columns.

27. The light emitting module of claim 26, wherein the first electrodes of at least one row of the light emitting cells are electrically connected to the same first conductive trace, and the second electrodes of at least one column of the light emitting cells are electrically connected to the same second conductive trace.

28. The lighting module of claim 20, wherein the plurality of lighting units comprise: at least one of a light emitting diode LED, a Mini LED and a Micro LED.

29. A display module comprising the light-emitting module according to any one of claims 1 to 28.

30. A display screen comprising the display module of claim 29.

31. A display comprising a display screen as claimed in claim 30.