Display module and display device

Abstract

This application discloses a display module and display device; the display module includes at least two lamp panels, at least one cover plate, and a light-shielding layer; at least two lamp panels are spliced ​​together, and each lamp panel includes multiple light-emitting units; at least one cover plate is disposed on the light-emitting side of the at least two lamp panels; the light-shielding layer is disposed on the cover plate, and the light-shielding layer has multiple openings and at least one light-shielding part disposed around the multiple openings, with the multiple openings corresponding to the multiple light-emitting units; wherein, the splicing seam between at least two lamp panels and the light-shielding part are aligned in the thickness direction of the display module; the light-shielding part in this application can cover the splicing seam between adjacent lamp panels, and can shield the differences in ink color between different lamp panels and the splicing seam, thereby improving the appearance consistency of the display module.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] With the development of the information society, people's demand for display devices has become more diversified. When manufacturing display devices in large sizes, large screens are usually achieved by splicing together multiple relatively small display devices.

[0003] Currently, in chip-on-PCB (COB) architecture splicing display modules, different boards are prone to ink color differences due to various reasons such as ink and adhesive film. In addition, splicing seams need to be reserved between adjacent boards to accommodate the expansion and contraction of the circuit board, resulting in poor overall screen consistency and poor appearance consistency of the splicing display module. Summary of the Invention

[0004] This application provides a display module and display device that can reduce the impact of splicing seams on the display module and improve the appearance consistency of the display module.

[0005] This application provides a display module, which includes: At least two light panels are provided, and the light panels are spliced ​​together. Each light panel includes multiple light-emitting units. At least one cover plate is disposed on the light-emitting side of at least two of the lamp panels; A light-shielding layer is disposed on the cover plate, wherein a plurality of openings are formed in the light-shielding layer and at least a light-shielding portion is disposed around the plurality of openings, and the plurality of openings are disposed corresponding to the plurality of light-emitting units; The splicing seam between at least two of the lamp panels is aligned with the light-shielding part in the thickness direction of the display module.

[0006] In one embodiment of this application, the projection of the seam onto at least one of the cover plates is located within the coverage area of ​​the light-shielding portion.

[0007] In one embodiment of this application, the light-shielding layer is disposed on the side of the cover plate away from the lamp plate, or the light-shielding layer is disposed on the side of the cover plate close to the lamp plate.

[0008] In one embodiment of this application, the display module includes at least two splicing components that are spliced ​​together, each splicing component includes at least two spliced ​​lamp panels, at least a portion of the splicing components are arranged and spliced ​​together along a first direction, and at least a portion of the splicing components form a first splicing seam extending along a second direction, wherein the first direction and the second direction are orthogonal. The display module includes at least two cover plates that are spliced ​​together. At least some of the cover plates are arranged and spliced ​​together along the first direction. A second splicing seam extending along the second direction is formed between at least some of the cover plates. The first splicing seam and the second splicing seam do not overlap along the thickness direction of the display module.

[0009] In one embodiment of this application, the display module includes a plurality of splicing components that are spliced ​​together. The plurality of splicing components are distributed and spliced ​​together along the first direction and the second direction. A first splicing seam and a third splicing seam extending along the first direction are formed between the plurality of splicing components, and the third splicing seam and the second splicing seam intersect along the thickness direction of the display module.

[0010] In one embodiment of this application, the light-shielding layer includes a first light-shielding part and a second light-shielding part. The first light-shielding part is aligned with the splicing seam along the thickness direction of the display module. The orthographic projection of the second light-shielding part on the lamp panel is located between adjacent light-emitting units on the same lamp panel. The width of the first light-shielding part is greater than the width of the second light-shielding part.

[0011] In one embodiment of this application, the area of ​​the light-emitting unit near the splicing seam is larger than the area of ​​the light-emitting unit away from the splicing seam.

[0012] In one embodiment of this application, the area of ​​the opening near the first light-shielding part is larger than the area of ​​the opening away from the first light-shielding part.

[0013] In one embodiment of this application, the thickness of the first light-shielding portion is greater than the thickness of the second light-shielding portion.

[0014] In one embodiment of this application, the orthographic projection of the light-emitting unit on the cover plate is located within the corresponding opening, and the distance between the orthographic projection of the light-emitting unit on the cover plate and the edge of the corresponding opening satisfies the following formula: L≥H×tan(A); Wherein, L is the distance between the orthographic projection of the light-emitting unit on the cover plate and the edge of the corresponding opening, H is the distance between the light-emitting unit and the cover plate, and A is the angle of the preset brightness viewing angle of the light-emitting unit.

[0015] In one embodiment of this application, H is greater than or equal to 5 micrometers and less than or equal to 300 micrometers; And / or, A is greater than or equal to 30°.

[0016] In one embodiment of this application, the area ratio of the light-shielding part in the light-shielding layer decreases as H increases.

[0017] In one embodiment of this application, the light-emitting unit includes at least two of the light-emitting elements; The light-shielding layer further includes a third light-shielding part, which is disposed within the opening and defines at least two sub-openings within the opening, and the at least two sub-openings are correspondingly disposed with at least two light-emitting elements.

[0018] In one embodiment of this application, at least two of the light-emitting elements emit different colors. The display module further includes a filter layer disposed on the cover plate. The filter layer includes a filter portion disposed within the sub-opening. The color of the filter portion within the same sub-opening is the same as the light-emitting color of the corresponding light-emitting element.

[0019] In one embodiment of this application, at least two of the light-emitting elements emit the same color, and the display module further includes a color conversion layer disposed on the cover plate. The color conversion layer includes a color conversion part or a light-transmitting part disposed in the sub-opening, and the color conversion part is configured to convert light of a first color into light of a second color. Wherein, the first color corresponding to the color conversion part within the same sub-opening is the same as the light emission color of the corresponding light-emitting element, and the second color is different from the first color.

[0020] In accordance with the above-mentioned objectives of this application, embodiments of this application also provide a display device, the display device including the display module as described above.

[0021] This application provides a display module and display device. By setting a light-shielding layer on the cover plate and aligning the light-shielding part in the light-shielding layer with the splicing seam between adjacent lamp panels, the light-shielding part can cover the splicing seam between adjacent lamp panels, which can shield the ink color difference between different lamp panels and the splicing seam, thereby improving the appearance consistency of the display module.

[0022] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0024] Figure 1 This is a schematic diagram of a first structure of a display module provided in an embodiment of this application; Figure 2 This is a schematic diagram of a second structure of the display module provided in an embodiment of this application; Figure 3 A schematic diagram of a first planar distribution of the lamp panel and cover plate provided in an embodiment of this application; Figure 4 This is a schematic diagram of a second planar distribution of the lamp panel and cover plate provided in an embodiment of this application; Figure 5 A schematic diagram of a third planar distribution of the lamp panel and cover plate provided in an embodiment of this application; Figure 6 This is a schematic diagram of a third structure of the display module provided in the embodiments of this application; Figure 7 This is a schematic diagram of a fourth structure of the display module provided in the embodiments of this application; Figure 8 This is a schematic diagram of a fifth structure of the display module provided in the embodiments of this application; Figure 9 A schematic diagram of a light-emitting unit and an opening provided in an embodiment of this application; Figure 10 This is a schematic diagram of a sixth structure of the display module provided in the embodiments of this application; Figure 11 This is a schematic diagram of the seventh structure of the display module provided in the embodiments of this application.

[0025] Explanation of reference numerals in the attached figures: 10. Light panel; 100. Splicing seam; 1001. First splicing seam; 1002. Third splicing seam; 110. Light-emitting unit; 1101. First light-emitting unit; 1102. Second light-emitting unit; 11. Light-emitting component; 111. First light-emitting component; 112. Second light-emitting component; 113. Third light-emitting component; 120. Splicing assembly; 12. Substrate; 20. Cover plate; 201. Second joint; 30. Light-shielding layer; 31. Light-shielding part; 311. First light-shielding part; 312. Second light-shielding part; 313. Third light-shielding part; 310. Opening; 3100. Sub-opening; 3101. First opening; 3102. Second opening; 40. Adhesive layer; 50. Filter layer; 51. Filter section; 511. First filter section; 512. Second filter section; 513. Third filter section; 60. Color conversion layer; 61. Light-transmitting part; 62. Color conversion part; 621. First color conversion part; 622. Second color conversion part. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0027] Please refer to Figure 1 This application provides a display module, which includes at least two lamp panels 10, at least one cover plate 20, and a light-shielding layer 30.

[0028] At least two light panels 10 are spliced ​​together, and each light panel 10 includes a plurality of light-emitting units 110; at least one cover plate 20 is disposed on the light-emitting side of the at least two light panels 10; a light-shielding layer 30 is disposed on the cover plate 20, and a plurality of openings 310 are formed in the light-shielding layer 30 and at least one light-shielding part 31 is disposed around the plurality of openings 310, and the plurality of openings 310 are correspondingly disposed to the plurality of light-emitting units 110.

[0029] Among them, the splicing seam 100 between at least two light panels 10 and the light-shielding part 31 are aligned in the thickness direction of the display module.

[0030] In the implementation process, this application embodiment provides a light-shielding layer 30 on the cover plate 20, and aligns the light-shielding part 31 in the light-shielding layer 30 with the splicing seam 100 between adjacent lamp panels 10. Thus, the light-shielding part 31 can cover the splicing seam 100 between adjacent lamp panels 10, which can shield the differences in ink color between different lamp panels 10 and the splicing seam 100, thereby improving the appearance consistency of the display module.

[0031] Specifically, please refer to Figure 1 The display module provided in this application embodiment can be a splicing display module, which can be spliced ​​together by multiple units to form a large screen display device.

[0032] In some embodiments, the display module includes at least two lamp panels 10, and the at least two lamp panels 10 are spliced ​​together; for each lamp panel 10, the lamp panel 10 includes a substrate 12 and a plurality of light-emitting units 110 disposed on the substrate 12, and the plurality of light-emitting units 110 can realize the light-emitting function of the lamp panel 10.

[0033] The light-emitting unit 110 may include at least one light-emitting element 11, which may be a light-emitting diode (LED).

[0034] Furthermore, multiple driving circuits can be provided on the substrate 12, and the multiple driving circuits can be connected to multiple light-emitting elements 11 on the substrate 12 to realize independent driving of multiple light-emitting elements 11.

[0035] In some embodiments, when the light-emitting unit 110 includes at least two light-emitting elements 11, the light-emitting colors of the at least two light-emitting elements 11 in the same light-emitting unit 110 may be the same or different.

[0036] In some embodiments, the substrate 12 may be a PCB circuit board, and each lamp board 10 may further include a driving chip disposed on the substrate 12 to provide a driving signal for the light emission of the light-emitting element 11 in the plurality of light-emitting units 110.

[0037] In the embodiments of this application, when at least two lamp panels 10 are spliced ​​together, the light-emitting units 110 on each lamp panel 10 are located on the same side of the substrate 12, and the light-emitting sides of the multiple lamp panels 10 face the same side.

[0038] Furthermore, at least one cover plate 20 is disposed on the light-emitting side of at least two lamp panels 10, which can provide protection for the light-emitting side of the lamp panel 10.

[0039] In this embodiment of the application, the display module further includes a light-shielding layer 30, which is disposed on the cover plate 20. The light-shielding layer 30 can play different roles according to the needs of different areas of the lamp panel 10, such as blocking the seams and reducing light crosstalk.

[0040] In some embodiments, the light-shielding layer 30 is disposed on the side of the cover plate 20 away from the lamp panel 10, and / or, the light-shielding layer 30 is disposed on the side of the cover plate 20 close to the lamp panel 10; for example, the light-shielding layer 30 may be disposed on the surface of the cover plate 20 close to the lamp panel 10, or the light-shielding layer 30 may be disposed on the surface of the cover plate 20 away from the lamp panel 10, or the light-shielding layer 30 may be disposed on both the surface of the cover plate 20 close to the lamp panel 10 and the surface of the cover plate 20 away from the lamp panel 10.

[0041] The light-shielding layer 30 has multiple openings 310 and at least one light-shielding portion 31 surrounding the multiple openings 310. The multiple openings 310 are correspondingly arranged with multiple light-emitting units 110. The splicing seam 100 between at least two lamp panels 10 and the light-shielding portion 31 are aligned along the thickness direction of the display module. In this embodiment, by providing a light-shielding layer 30 on the cover plate 20 and aligning the light-shielding portion 31 in the light-shielding layer 30 with the splicing seam 100 between adjacent lamp panels 10, the light-shielding portion 31 can cover the splicing seam 100 between adjacent lamp panels 10. This can shield the differences in ink color between different lamp panels 10 and the splicing seam 100, thereby improving the appearance consistency of the display module.

[0042] It is understood that multiple light-emitting units 110 are arranged in an array on the substrate 12, and the light-shielding layer 30 forms multiple openings 310 arranged in an array on the cover plate 20. At least one light-shielding part 31 is provided around the openings 310 in the light-shielding layer 30. The openings 310 can allow light to pass through, while the light-shielding parts 31 can block the light. For example, the multiple openings 310 and the multiple light-emitting units 110 can be arranged in a one-to-one correspondence. Thus, each opening 310 can allow the light emitted by the corresponding light-emitting unit 110 to pass through, and reduce light crosstalk between adjacent light-emitting units 110.

[0043] In some embodiments, the orthographic projection of each light-emitting unit 110 on the cover plate 20 is located within the corresponding opening 310, and the area of ​​the light-emitting unit 110 is less than or equal to the area of ​​the opening 310, so as to reduce the influence of the light-shielding part 31 on the light emission angle of the light-emitting unit 110.

[0044] Furthermore, a splicing seam 100 is formed between every two adjacent lamp panels 10, and the splicing seam 100 affects the appearance of the display module, affecting the display effect and appearance consistency of the display module; in this embodiment, the light-shielding part 31 is also located above the splicing point of two adjacent lamp panels 10, that is, the splicing seam 100 and the light-shielding part 31 are aligned along the thickness direction of the display module, so the light-shielding part 31 can also block the splicing seam 100.

[0045] In some embodiments, the light-shielding layer 30 may include a first light-shielding part 311 and a second light-shielding part 312. The first light-shielding part 311 is aligned with the splicing seam 100 along the thickness direction of the display module. The orthographic projection of the second light-shielding part 312 on the lamp panel 10 is located between adjacent light-emitting units 110 on the same lamp panel 10. That is, the first light-shielding part 311 can block the splicing seam 100, and the second light-shielding part 312 can prevent light crosstalk.

[0046] In some embodiments, the light-shielding layer 30 may be a black matrix layer, or the light-shielding layer 30 may be other light-shielding materials, which are not limited herein.

[0047] In some embodiments, the projection of the seam 100 onto at least one cover plate 20 is within the coverage area of ​​the light-shielding part 31, so as to ensure that the seam 100 can be completely blocked by the light-shielding part 31.

[0048] In some embodiments, please refer to Figure 2 The light-shielding layer 30 may also include a third light-shielding part 313, which is disposed in the opening 310 and defines at least two sub-openings 3100 in the opening 310, and the at least two sub-openings 3100 are correspondingly disposed with at least two light-emitting elements 11 in the light-emitting unit 110.

[0049] It should be noted that an opening 310 can be aligned with a light-emitting unit 110. Since a light-emitting unit 110 can contain at least two light-emitting elements 11, the present application embodiment divides the opening 310 a second time. By setting a third light-shielding part 313 connected to the side wall of the opening 310, at least two sub-openings 3100 are divided in the opening 310. The at least two sub-openings 3100 and at least two light-emitting elements 11 are aligned along the thickness direction of the display module. For example, between a corresponding light-emitting unit 110 and an opening 310, at least two light-emitting elements 11 are arranged in a one-to-one correspondence with at least two sub-openings 3100, and each sub-opening 3100 is at least used to allow the light emitted by the corresponding light-emitting element 11 to pass through.

[0050] In some embodiments, the orthographic projection of each light-emitting element 11 on the cover plate 20 is located within the corresponding sub-opening 3100, and the area of ​​the light-emitting element 11 is less than or equal to the area of ​​the corresponding sub-opening 3100, so as to reduce the influence of the third light-shielding part 313 on the light emission angle of the light-emitting element 11.

[0051] It is understood that in this embodiment of the application, the lamp panel 10 is provided with a plurality of light-emitting elements 11, and the cover plate 20 is provided with a light-shielding layer 30. The light-shielding layer 30 defines a plurality of sub-openings 3100 by a first light-shielding part 311, a second light-shielding part 312 and a third light-shielding part 313. The plurality of sub-openings 3100 can be correspondingly provided with the plurality of light-emitting elements 11 so that the plurality of light-emitting elements 11 can emit light. The first light-shielding part 311 is located above the splicing seam 100 and can block the splicing seam 100. The second light-shielding part 312 is located between adjacent light-emitting units 110 and the third light-shielding part 313 is located between adjacent light-emitting elements 11, which can at least be used to prevent light crosstalk.

[0052] In some embodiments, the display module further includes an adhesive layer 40 disposed between the cover plate 20 and the lamp panel 10, and the cover plate 20 is bonded to the lamp panel 10 through the adhesive layer 40; and the bonding method between the cover plate 20 and the lamp panel 10 can be full bonding or frame bonding, for example... Figure 2 As shown, the bonding layer 40 is connected between the cover plate 20 and the lamp plate 10 in a fully bonded manner.

[0053] In some embodiments, the material of the adhesive layer 40 may include a transparent adhesive, for example, the material of the adhesive layer 40 may include optically clear adhesive (OCA) or optically clear resin (OCR).

[0054] In some embodiments, the refractive index of the bonding layer 40 is greater than or equal to 1.4 and less than or equal to 2. For example, the refractive index of the bonding layer 40 may be 1.4, 1.5, 1.6, 1.7, 1.8, 1.9 or 2.

[0055] In some embodiments, the transmittance of the bonding layer 40 is greater than or equal to 95%.

[0056] In the display module provided in this application embodiment, at least two light panels 10 can be assembled on a cabinet, and then multiple cabinets can be spliced ​​together to obtain a large-size display module.

[0057] In some embodiments, please refer to Figure 2 and Figure 3 The display module includes at least two splicing components 120 spliced ​​together, each splicing component 120 including at least two light panels 10 spliced ​​together, at least some of the splicing components 120 are arranged and spliced ​​together along a first direction X, and a first splicing seam 1001 extending along a second direction Y is formed between at least some of the splicing components 120, the first direction X and the second direction Y are orthogonal, that is, perpendicular to each other.

[0058] In other embodiments of this application, the first direction X and the second direction Y intersect, and the angle between the first direction X and the second direction Y can be any angle other than 90°.

[0059] One splicing component 120 is assembled on one cabinet, and multiple cabinets can be spliced ​​together to form a large-size splicing display module. The display module can include multiple splicing components 120, and the multiple splicing components 120 can be arranged in a straight line along the first direction X, or the multiple splicing components 120 can be arranged in an array along the first direction X and the second direction Y. When the multiple splicing components 120 are arranged in an array, a third splicing seam 1002 extending along the first direction X can also be formed between the multiple splicing components 120.

[0060] The display module may include a cover plate 20, and the cover plate 20 may be located on the light-emitting side of multiple splicing components 120. The cover plate 20 may cover multiple splicing components 120, and the light-shielding part 31 on the cover plate 20 may shield the first splicing seam 1001 and the third splicing seam 100 between multiple splicing components 120, as well as the splicing seam 100 between adjacent lamp panels 10 in each splicing component 120, so as to improve the uniformity of the appearance and the display effect of the display module.

[0061] It should be noted that during the manufacturing process of the display module, the splicing components 120 can be assembled onto the cabinet first, then multiple cabinets can be spliced ​​together, and then bonded to the cover plate 20. Alternatively, multiple splicing components 120 can be aligned and bonded to the cover plate 20, and then the bonded assembly can be assembled to the cabinet.

[0062] In other embodiments, please refer to Figure 2 as well as Figure 4 The display module includes at least two cover plates 20 spliced ​​together, and at least some of the cover plates 20 are arranged and spliced ​​together along a first direction X; that is, the display module can cover multiple splicing components 120 by at least two cover plates 20, and each cover plate 20 can cover at least one splicing component 120.

[0063] For example Figure 4 As shown, the display module includes six splicing components 120 and three cover plates 20, and the six splicing components 120 are arranged in two rows and three columns along the first direction X and the second direction Y, and each cover plate 20 can cover one column of splicing components 120.

[0064] In other embodiments, please refer to Figure 2 as well as Figure 5 In this embodiment, with Figure 4 The difference in the embodiment shown is that: at least some of the splicing components 120 have a first splicing seam 1001 extending along the second direction Y, and at least some of the cover plates 20 have a second splicing seam 201 extending along the second direction Y. The first splicing seam 1001 and the second splicing seam 201 do not overlap along the thickness direction of the display module.

[0065] It is understandable that when a display module has at least two cover plates 20, a second splicing seam 201 will also be formed between adjacent cover plates 20, which may also affect the appearance consistency of the display module. If the second splicing seam 201 between cover plates 20 overlaps with the first splicing seam 1001 between splicing components 120, it will further worsen the impact of the splicing seam on the display and appearance of the display module. Therefore, in this embodiment, the first splicing seam 1001 and the second splicing seam 201 do not overlap along the thickness direction of the display module, so that the second splicing seam 201 in the cover plate 20 and the first splicing seam 1001 between splicing components 120 are staggered to reduce the impact of the splicing seam on the appearance and display of the display module.

[0066] Furthermore, the display module includes multiple splicing components 120 that are spliced ​​together. The multiple splicing components 120 are distributed and spliced ​​together along the first direction X and the second direction Y. A third splicing seam 1002 extending along the first direction X is also formed between the multiple splicing components, and the third splicing seam 1002 intersects the second splicing seam 201 along the thickness direction of the display module. That is to say, in this embodiment of the application, by staggering the first splicing seam 1001 and the second splicing seam 201 that have the same or parallel extension direction, the impact of splicing seam overlap on the appearance and display of the display module is effectively reduced.

[0067] In some embodiments, the second splicing seam 201 may be aligned with the splicing seam 100 between two adjacent light panels 10 and parallel to the second direction Y along the thickness direction of the display module; or, the second splicing seam 201 may be offset from the splicing seam 100 between two adjacent light panels 10 and parallel to the second direction Y along the thickness direction of the display module, thereby further reducing overlapping seams and improving the appearance and display effect of the display module.

[0068] In some embodiments, the second splicing seam 201 may be intersected with the splicing seam 100 between two adjacent light panels 10 and parallel to the first direction X along the thickness direction of the display module.

[0069] Furthermore, this application embodiment then designs the detailed structure of the display module to further improve the optical effect of the display module.

[0070] In some embodiments, please refer to Figure 6 and Figure 7 The width of the first light-shielding part 311 is greater than the width of the second light-shielding part 312. Since the first light-shielding part 311 on the cover plate 20 needs to cover the splicing seam 100 between adjacent lamp panels 10, the cover plate 20 needs to be aligned when it is attached to the lamp panel 10. In this embodiment of the application, by making the width of the first light-shielding part 311 larger, the display module can have more process offset.

[0071] In some embodiments, the area of ​​the light-emitting unit 110 near the splicing seam 100 is larger than the area of ​​the light-emitting unit 110 away from the splicing seam 100. It is understood that, since the alignment process offset can be increased by increasing the width of the first light-shielding part 311 in this embodiment, the light-shielding intensity of the light-shielding part 31 at the splicing seam 100 between the lamp panels 10 is greater than the light-shielding intensity of the light-shielding part 31 at other positions of the lamp panel 10, which can easily lead to uneven brightness in the display module. However, to address this deficiency, this embodiment further designs the area of ​​the light-emitting unit 110, ensuring that the area of ​​the light-emitting unit 110 near the splicing seam 100 is larger than the area of ​​the light-emitting unit 110 away from the splicing seam 100, thereby enhancing the light output brightness of the light-emitting unit 110 near the splicing seam 100 to compensate for the brightness loss caused by the increased width of the first light-shielding part 311.

[0072] For example, the plurality of light-emitting units 110 include a first light-emitting unit 1101 and a second light-emitting unit 1102, wherein the first light-emitting unit 1101 is disposed close to the splicing seam 100, the second light-emitting unit 1102 is disposed away from the splicing seam 100, and the area of ​​the first light-emitting unit 1101 is larger than the area of ​​the second light-emitting unit 1102.

[0073] Therefore, in this embodiment of the application, by increasing the width of the first light-shielding part 311 and increasing the area of ​​the light-emitting unit 110 near the splicing seam 100, the alignment process offset is improved, and the display module does not experience uneven brightness.

[0074] In some embodiments, the area of ​​the light-emitting unit 110 can be adjusted by the spacing between adjacent light-emitting elements 11. For example, increasing the spacing between adjacent light-emitting elements 11 can increase the area of ​​the light-emitting unit 110. Alternatively, the area of ​​the light-emitting unit 110 can be adjusted by adjusting the area of ​​the light-emitting elements 11. For example, increasing the area of ​​the light-emitting elements 11 can increase the area of ​​the light-emitting unit 110.

[0075] In some embodiments, within the light-emitting unit 110 near the splicing seam 100, there is a first spacing between adjacent light-emitting elements 11, and within the light-emitting unit 110 away from the splicing seam 100, there is a second spacing between adjacent light-emitting elements 11. The first spacing is greater than the second spacing, and there is a first difference between the first spacing and the second spacing, while the ratio of the first difference to the second spacing is less than or equal to 10%. Then, there is a second difference between the width of the first light-shielding portion 311 and the width of the second light-shielding portion 312, while the ratio of the second difference to the width of the second light-shielding portion 312 is greater than or equal to 10% and less than or equal to 20%.

[0076] Furthermore, in some embodiments, the area of ​​the opening 310 near the first light-shielding part 311 is larger than the area of ​​the opening 310 away from the first light-shielding part 311; similarly, embodiments of this application can also increase the light output brightness near the first light-shielding part 311 by increasing the area of ​​the opening 310 near the first light-shielding part 311, thereby compensating for the brightness loss caused by the increase in the width of the first light-shielding part 311.

[0077] For example, the plurality of openings 310 may include a first opening 3101 near the first light-shielding part 311 and a second opening 3102 away from the first light-shielding part 311, wherein the area of ​​the first opening 3101 is larger than the area of ​​the second opening 3102.

[0078] Therefore, in this embodiment of the application, by increasing the width of the first light-shielding part 311 and increasing the area of ​​the opening 310 near the splicing seam 100, the alignment process offset is improved, and the display module does not experience uneven brightness.

[0079] In some embodiments, please refer to Figure 8 The thickness of the first light-shielding part 311 is greater than the thickness of the second light-shielding part 312; thereby, the light-shielding intensity of the first light-shielding part 311 at the splice seam 100 can be improved, and the probability of light leakage caused by splicing misalignment between adjacent light panels 10 can be reduced.

[0080] In some embodiments, please refer to Figure 9 The orthographic projection of the light-emitting unit 110 on the cover plate 20 is located within the corresponding opening 310, and the distance between the orthographic projection of the light-emitting unit 110 on the cover plate 20 and the edge of the corresponding opening 310 satisfies the following formula: L≥H×tan(A); Wherein, L is the distance between the orthographic projection of the light-emitting unit 110 on the cover plate 20 and the edge of the corresponding opening 310, H is the distance between the light-emitting unit 110 and the cover plate 20, and A is the angle of the preset brightness viewing angle of the light-emitting unit 110.

[0081] It should be noted that L is the distance between the outermost light-emitting element 11 in the light-emitting unit 110 and the edge of the corresponding opening 310; while A can be adjusted according to actual needs. The preset brightness viewing angle is the viewing angle required by the user during use. That is to say, the user needs to maintain good brightness under this viewing angle. Therefore, in this embodiment, L is specially designed to be greater than or equal to HtanA, so that the user can still have good brightness under the required viewing angle, thereby improving the display effect of the display module.

[0082] In some embodiments, H is greater than or equal to 5 micrometers and less than or equal to 300 micrometers; more preferably, H is greater than or equal to 20 micrometers and less than or equal to 50 micrometers.

[0083] In some embodiments, A is greater than or equal to 30°; more preferably, A is greater than or equal to 30° and less than or equal to 60°.

[0084] In some specific embodiments, the area of ​​the light-shielding portion 31 in the light-shielding layer 30 can be designed according to the viewing angle requirements, the thickness of the encapsulation layer, and the different values ​​of H. The embodiments of this application are illustrated in Table 1 below: Table 1

[0085] In the display modules corresponding to the data in Table 1, A is 70° and M is the area ratio of the light-shielding part 31 in the light-shielding layer 30. It can be seen that the area ratio of the light-shielding part 31 in the light-shielding layer 30 decreases as H increases. Therefore, it can be designed according to actual needs to meet the viewing angle requirements of display modules with different H values ​​or to meet the different viewing angle requirements of display modules.

[0086] In addition, the display module provided in this application embodiment can realize color display, which requires at least two different colors of light emission.

[0087] In some embodiments, please combine Figure 2 and Figure 10 When the light emission colors of at least two light-emitting elements 11 in the same light-emitting unit 110 are different, the display module also includes a filter layer 50 disposed on the cover plate 20. The filter layer 50 includes a filter part 51 disposed in the sub-opening 3100. The color of the filter part 51 in the same sub-opening 3100 is the same as the light emission color of the corresponding light-emitting element 11. That is, for the same sub-opening 3100, the color of the filter part 51 disposed therein is the same as the light emission color of the corresponding light-emitting element 11. Thus, the filter part 51 can transmit the light emitted by the corresponding light-emitting element 11, while blocking light of different colors, thereby improving the color purity of the display module.

[0088] For example, a light-emitting unit 110 may include three light-emitting elements 11, and the three light-emitting elements 11 emit different colors. The three light-emitting elements 11 may include a first light-emitting element 111, a second light-emitting element 112, and a third light-emitting element 113. The first light-emitting element 111 emits blue light, the second light-emitting element 112 emits green light, and the third light-emitting element 113 emits red light. Correspondingly, a plurality of light-filtering parts 51 may include a first light-filtering part 511 aligned with the first light-emitting element 111, a second light-filtering part 512 aligned with the second light-emitting element 112, and a third light-filtering part 513 aligned with the third light-emitting element 113. The first light-filtering part 511 can transmit blue light while blocking green and red light, the second light-filtering part 512 can transmit green light while blocking blue and red light, and the third light-filtering part 513 can transmit red light while blocking blue and green light.

[0089] In some embodiments, the material of the filter layer 50 can be a color resist, in which case the first filter portion 511 can be a blue color resist, the second filter portion 512 can be a green color resist, and the third filter portion 513 can be a red color resist.

[0090] In some embodiments, please combine Figure 2 and Figure 11 When at least two light-emitting elements 11 in the same light-emitting unit 110 emit the same color, the display module also includes a color conversion layer 60 disposed on the cover plate 20. The color conversion layer 60 includes a color conversion part 62 or a light-transmitting part 61 disposed in the sub-opening 3100. The color conversion part 62 is configured to convert light of the first color into light of the second color, while the light-transmitting part 61 can be a transparent material, or the light-transmitting part 61 is still an opening, that is, the sub-opening 3100 with the light-transmitting part 61 does not need to be provided with other film layers, so that light can pass through directly.

[0091] In this case, the first color of the color conversion part 62 within the same sub-opening 3100 is the same as the light emission color of the corresponding light-emitting element 11, and the second color is different from the first color.

[0092] Specifically, the light-emitting unit 110 may include a first light-emitting element 111, a second light-emitting element 112, and a third light-emitting element 113, and the first light-emitting element 111, the second light-emitting element 112, and the third light-emitting element 113 all emit the same color, for example, the first light-emitting element 111, the second light-emitting element 112, and the third light-emitting element 113 all emit blue light. Correspondingly, the color conversion layer 60 includes a light-transmitting portion 61 aligned with the first light-emitting element 111, a first color conversion portion 621 aligned with the second light-emitting element 112, and a second color conversion portion 622 aligned with the third light-emitting element 113. The light-transmitting portion 61 can transmit the blue light emitted by the first light-emitting element 111, the first color conversion portion 621 can convert the blue light emitted by the second light-emitting element 112 into green light, and the second color conversion portion 622 can convert the blue light emitted by the third light-emitting element 113 into red light. Thus, the light emitted by the light-emitting unit 110 can emit red, green, and blue light after passing through the color conversion layer 60, thereby achieving color display.

[0093] It should be noted that when the light-emitting elements 11 in the light-emitting unit 110 emit the same light color, the color conversion layer 60 provides a light-transmitting part 61 at the position aligned with some of the light-emitting elements 11 and a color conversion part 62 at the position aligned with another part of the light-emitting elements 11, thereby enabling the emission of at least two colors; furthermore, the color conversion part 62 can convert to at least two colors, thereby enabling the emission of at least three colors.

[0094] In some embodiments, the material of the color conversion layer 60 may include at least one of quantum dot material and phosphor material.

[0095] In summary, this embodiment of the application provides a light-shielding layer 30 on the cover plate 20, and aligns the light-shielding part 31 in the light-shielding layer 30 with the splicing seam 100 between adjacent lamp panels 10. As a result, the light-shielding part 31 can cover the splicing seam 100 between adjacent lamp panels 10, which can shield the differences in ink color between different lamp panels 10 and the splicing seam 100, thereby improving the appearance consistency of the display module.

[0096] In addition, this application embodiment also provides a display device, which includes the display module as described above.

[0097] It is understood that the display device provided in this application embodiment has the same display module as in the above embodiment. Therefore, the display device has the same beneficial effects as the display module, which will not be repeated here.

[0098] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0099] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0100] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0101] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display module, characterized by include: At least two light panels are provided, and the light panels are spliced ​​together. Each light panel includes multiple light-emitting units. At least one cover plate is disposed on the light-emitting side of at least two of the lamp panels; A light-shielding layer is disposed on the cover plate, wherein a plurality of openings are formed in the light-shielding layer and at least a light-shielding portion is disposed around the plurality of openings, and the plurality of openings are disposed corresponding to the plurality of light-emitting units; The splicing seam between at least two of the lamp panels is aligned with the light-shielding part in the thickness direction of the display module.

2. The display module of claim 1, wherein, The projection of the seam on at least one of the cover plates is located within the coverage area of ​​the light-shielding portion.

3. The display module of claim 1, wherein, The light-shielding layer is disposed on the side of the cover plate away from the lamp plate, and / or the light-shielding layer is disposed on the side of the cover plate close to the lamp plate.

4. The display module of claim 1, wherein, The display module includes at least two splicing components that are spliced ​​together, each splicing component includes at least two splicing light panels, at least some of the splicing components are arranged and spliced ​​together along a first direction, and at least some of the splicing components form a first splicing seam extending along a second direction, the first direction and the second direction being orthogonal; The display module includes at least two cover plates that are spliced ​​together. At least some of the cover plates are arranged and spliced ​​together along the first direction. A second splicing seam extending along the second direction is formed between at least some of the cover plates. The first splicing seam and the second splicing seam do not overlap along the thickness direction of the display module.

5. The display module of claim 4, wherein, The display module includes a plurality of splicing components that are spliced ​​together. The plurality of splicing components are distributed and spliced ​​together along the first direction and the second direction. A first splicing seam and a third splicing seam extending along the first direction are formed between the plurality of splicing components, and the third splicing seam and the second splicing seam intersect along the thickness direction of the display module.

6. The display module of any one of claims 1 to 5, wherein, The light-shielding layer includes a first light-shielding part and a second light-shielding part. The first light-shielding part is aligned with the splicing seam along the thickness direction of the display module. The orthographic projection of the second light-shielding part on the lamp panel is located between adjacent light-emitting units on the same lamp panel. The width of the first light-shielding part is greater than the width of the second light-shielding part.

7. The display module of claim 6, wherein, The area of ​​the light-emitting unit closer to the seam is greater than the area of ​​the light-emitting unit farther away from the seam.

8. The display module of claim 6, wherein, The area of ​​the opening near the first light-shielding part is larger than the area of ​​the opening away from the first light-shielding part.

9. The display module according to claim 6, characterized in that, The thickness of the first light-shielding part is greater than the thickness of the second light-shielding part.

10. The display module of any one of claims 1 to 5, wherein, The orthographic projection of the light-emitting unit on the cover plate is located within the corresponding opening, and the distance between the orthographic projection of the light-emitting unit on the cover plate and the edge of the corresponding opening satisfies the following formula: L≥H×tan(A); Wherein, L is the distance between the orthographic projection of the light-emitting unit on the cover plate and the edge of the corresponding opening, H is the distance between the light-emitting unit and the cover plate, and A is the angle of the preset brightness viewing angle of the light-emitting unit.

11. The display module of claim 10, wherein, H is greater than or equal to 5 micrometers and less than or equal to 300 micrometers; And / or, A is greater than or equal to 30°.

12. The display module according to claim 10, characterized in that, The area ratio of the light-shielding part in the light-shielding layer decreases as H increases.

13. The display module of any one of claims 1 to 5, wherein, The light-emitting unit includes at least two light-emitting elements; The light-shielding layer further includes a third light-shielding part, which is disposed within the opening and defines at least two sub-openings within the opening, and the at least two sub-openings are correspondingly disposed with at least two light-emitting elements.

14. The display module of claim 13, wherein, At least two of the light-emitting elements emit different colors. The display module also includes a filter layer disposed on the cover plate. The filter layer includes a filter portion disposed in the sub-opening. The color of the filter portion in the same sub-opening is the same as the light-emitting color of the corresponding light-emitting element.

15. The display module of claim 13, wherein, At least two of the light-emitting elements emit the same color. The display module further includes a color conversion layer disposed on the cover plate. The color conversion layer includes a color conversion part or a light-transmitting part disposed in the sub-opening. The color conversion part is configured to convert light of a first color into light of a second color. Wherein, the first color corresponding to the color conversion part within the same sub-opening is the same as the light emission color of the corresponding light-emitting element, and the second color is different from the first color.

16. A display device comprising: The display device includes a display module as described in any one of claims 1 to 15.

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