CN115241349A - Light emitting module and display device - Google Patents
Light emitting module and display device Download PDFInfo
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- CN115241349A CN115241349A CN202210934551.XA CN202210934551A CN115241349A CN 115241349 A CN115241349 A CN 115241349A CN 202210934551 A CN202210934551 A CN 202210934551A CN 115241349 A CN115241349 A CN 115241349A
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- light
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/54—Encapsulations having a particular shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
Abstract
The invention provides a light-emitting assembly and a display device, which comprise a first substrate, a plurality of light-emitting devices above the first substrate, a plurality of packaging parts and a second substrate on the plurality of packaging parts, wherein each packaging part comprises a first part covering the side part of the corresponding light-emitting device, a second part covering the top part of the corresponding light-emitting device and a third part connected to one side of the first part close to the second part; the outer surfaces of the first portion and the second portion are planes, the outer surface of the third portion comprises convex surfaces which are connected with the first portion and protrude in the direction away from the corresponding light-emitting device, and the two convex surfaces in the two adjacent packaging portions are used for enabling the overlapping area of the projection of the light rays emitted by the two corresponding light-emitting devices on the second substrate to be small, so that the light mixing phenomenon is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to the manufacture of a display device, and particularly relates to a light-emitting assembly and a display device.
Background
At present, the size of a Mini LED (sub-millimeter light emitting diode) is smaller, and a Mini LED display panel has the advantages of being finer in display effect, higher in brightness, more power-saving and the like.
However, in the Mini LED array arrangement, the light emitted by two adjacent Mini LEDs may be mixed at the upper part to form a light mixing region, which is a halo phenomenon.
Therefore, the Mini LED array in the conventional Mini LED display panel cannot achieve both the halo and uniformity improvement, and needs to be improved urgently.
Disclosure of Invention
The invention aims to provide a light-emitting component and a display device, and solves the problem that the existing Mini LED display panel cannot improve both halo and uniformity.
An embodiment of the present invention provides a light emitting device, including:
a first substrate;
a plurality of light emitting devices on the first substrate;
each packaging part comprises a first part covering the side part of the corresponding light-emitting device, a second part covering the top part of the corresponding light-emitting device, and a third part connected to one side of the first part close to the second part, wherein the outer surface of the first part is a plane;
the second substrate is positioned on one side, away from the first substrate, of the plurality of packaging parts;
the outer surface of the second portion is a plane, and the outer surface of the third portion comprises a convex surface which is connected to the first portion and protrudes in a direction away from the corresponding light-emitting device.
In an embodiment, the area of the overlap of the projections of the light rays emitted by two adjacent light emitting devices on the second substrate is 0.
In an embodiment, in a same cross section perpendicular to the first substrate, the convex surface in the outer surface of the third portion is an arc, the arc includes a target arc, and a line segment of a line connecting any point on the target arc and a center of the light emitting device is closer to the first substrate than a line segment of a line connecting the point on the target arc and a center of a circle corresponding to the arc.
In an embodiment, in the same cross section perpendicular to the first substrate, the convex surface is a circular arc, the circular arc and the outer surface of the first portion have a first intersection point, and a tangent of the circular arc at the first intersection point is located in a plane of the outer surface of the first portion.
In one embodiment, the outer surface of said third portion is constituted by one of said convex surfaces;
in the same cross section perpendicular to the first substrate, the arc and the outer surface of the second portion have a second intersection point, and a tangent line of the arc at the second intersection point is located in a plane where the second portion is located.
In an embodiment, the third portion further includes a concave surface connected between the convex surface and the second portion and recessed toward a direction close to the corresponding light emitting device.
In an embodiment, the outer surface of the third portion includes a plurality of convex surfaces which are connected and convex in a direction away from the corresponding light emitting device.
In an embodiment, the roughness of the outer surface of the third portion is greater than the roughness of the outer surface of the second portion and the roughness of the outer surface of the first portion.
In an embodiment, the refractive index of the third portion is greater than the refractive index of the second portion.
The embodiment of the invention also provides a display device, which comprises the display panel.
The present invention provides a light emitting module and a display device, including: a first substrate; a plurality of light emitting devices on the first substrate; each packaging part comprises a first part covering the side part of the corresponding light-emitting device, a second part covering the top part of the corresponding light-emitting device, and a third part connected to one side of the first part close to the second part, wherein the outer surface of the first part is a plane; the second substrate is positioned on one side of the plurality of packaging parts far away from the first substrate; the outer surface of the second portion is a plane, and the outer surface of the third portion comprises a convex surface which is connected to the first portion and protrudes in a direction away from the corresponding light-emitting device. On one hand, the outer surface of the second part covering the top of the corresponding light-emitting device is arranged to be a plane, so that the uniformity of light rays can be improved, and on the other hand, the outer surface of the third part is provided with a convex surface which is connected with the first part and protrudes in the direction far away from the corresponding light-emitting device, so that the risk of light mixing can be reduced.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic cross-sectional view of a light emitting device according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a first package according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a second package according to an embodiment of the invention.
Fig. 4 is a schematic cross-sectional view of a third package according to an embodiment of the invention.
Fig. 5 is a schematic cross-sectional view of an encapsulation.
Fig. 6 is a schematic cross-sectional view of a fourth package according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
This specification and claims do not intend to distinguish between components that differ in name but not function. As used in this specification and the appended claims, the term "comprising" is used in an open-ended fashion, and thus should be interpreted to mean "including, but not limited to. In the description of the present invention, it is to be understood that the terms "upper", "lower", "one side", "surface", and the like indicate orientations or positional relationships based on those shown in the drawings, and the orientations or positional relationships are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In addition, it should be noted that the drawings only provide the structures and/or steps which are relatively closely related to the present invention, and some details which are not related to the present invention are omitted, so as to simplify the drawings and make the invention clear, but not to show that the actual devices and/or methods are the same as the drawings and are not limitations of the actual devices and/or methods.
The present invention provides light emitting assemblies including, but not limited to, the following embodiments and combinations between the following embodiments.
In one embodiment, as shown in fig. 1, the light emitting assembly 100 includes: a first substrate 10; a plurality of light emitting devices 20 on the first substrate 10; a plurality of encapsulation portions 30, each of the encapsulation portions 30 including a first portion 301 covering a side portion of the corresponding light emitting device 20, a second portion 302 covering a top portion of the corresponding light emitting device 20, and a third portion 303 connected to a side of the first portion 301 close to the second portion 302, an outer surface of the first portion 301 being a plane a; a second substrate 40 positioned on a side of the plurality of sealing parts 30 away from the first substrate 10; the outer surface of the second portion 302 is a plane B, and the outer surface of the third portion 303 includes a convex surface C that is connected to the first portion 301 and protrudes in a direction away from the corresponding light emitting device 20.
In this embodiment, the application scenario of the light emitting assembly 100 is not limited. Specifically, when the light emitting assembly 100 is used as a backlight device, the first substrate 10 may be a printed circuit board, that is, the first substrate 10 may include a plurality of light emitting driving circuits and wires, and the plurality of light emitting devices 20 may be attached to the first substrate 10 to be electrically connected to the plurality of light emitting driving circuits through the wires; when the light emitting assembly 100 is used as a display device, a buffer layer, a thin film transistor layer, a passivation layer, and other film layers may be disposed between the first substrate 10 and the plurality of light emitting devices 20, the thin film transistor layer may include a plurality of driving transistors, and the light emitting devices 20 may be electrically connected to the corresponding driving transistors through, but not limited to, a via technology. Here, whether the light emitting assembly 100 is used as a backlight or a display, the second substrate 40 may be understood as a substrate or a film layer located at a side of the plurality of encapsulation portions 30 away from the first substrate 10.
Specifically, the encapsulation part 30 may cover a side of the corresponding light emitting device 20 not contacting the first substrate 10, so that the outer surface of the light emitting device 20 is completely covered by the first substrate 10 and the encapsulation part 30, which may block external moisture from entering the light emitting device 20 and reduce the risk of the light emitting device 20 being scratched by the outside. It should be noted that, since the light emitting devices 20 can emit light in all directions theoretically, at least one of the two adjacent light emitting devices 20 with different emission colors and the second substrate 40 and the plurality of light emitting devices 20 is close to each other may cause a large area of an overlapping region where the two adjacent light emitting devices 20 with different emission colors irradiate the second substrate 40, and cause a large light mixing area.
It will be appreciated that the shape of the outer surface of the different parts of the encapsulation 30 in the present embodiment are differently arranged: on one hand, the outer surface of the second portion 302 covering the top of the corresponding light-emitting device 20 is set as a plane B, and light emitted by the light-emitting device 20 is refracted on the outer surface of the second portion 302 to the same degree, so that light is not diffused or converged in this area to cause non-uniformity of light; on the other hand, the outer surface of the third portion 303 connected to the side of the first portion 301 close to the second portion 302 is provided with a convex surface C connected to the first portion 301 and protruding in a direction away from the corresponding light emitting device 20, light emitted by the light emitting device 20 is refracted to different degrees by the convex surface C in the outer surface of the third portion 303, and in combination with the converging action of the convex surface C, as shown in fig. 2 to 4, at least part of light emitted by the light emitting device 20 can be converged by the convex surface C, so that the refracted light corresponding to the extended line of the incident light (e.g., the extended line of L1 'relative to L1, and the extended line of L4' relative to L4) is further away from the adjacent light emitting device 20, thereby reducing the area of the overlapping region where the light emitted by the light emitting device 20 and the adjacent light emitting device 20 irradiate on the second substrate 40, and reducing the risk of light mixing.
Further, in combination with the above discussion, by reasonably setting the shape and size of the convex surface C in the present embodiment, the area of the overlapping region where all the refracted light rays after the light emitting device 20 passes through the encapsulating portion 30 and all the refracted light rays after the adjacent light emitting device 20 passes through the encapsulating portion 30 are irradiated onto the second substrate 40 can be made to be 0, so as to eliminate the light mixing phenomenon.
As shown in fig. 1, the material of the package portion 30 includes at least one of epoxy resin, silicone, polyurethane, and silicone. In combination with the above discussion, the encapsulating portion 30 may be, but is not limited to, an encapsulating glue, and the encapsulating glue may be a kind of electronic glue or adhesive for sealing, encapsulating or encapsulating the light emitting device 20, and may play roles of waterproof, moisture-proof, shock-proof, dust-proof, heat dissipation, secrecy, and the like after encapsulation. Specifically, the composition material of the sealing portion 30 in this embodiment may be a mixture, and may include epoxy sealing glue, silicone sealing glue, polyurethane sealing glue, ultraviolet light curing sealing glue, and the like, and the color of the sealing glue may be transparent and colorless or other colors.
In an embodiment, as shown in fig. 1 to 4, in the same cross section perpendicular to the first substrate 10, the convex surface C in the outer surface of the third portion 303 is a circular arc, the circular arc includes a target circular arc L0, a line segment of a connecting line between any point on the target circular arc L0 and the center of the light emitting device 20, and a line segment of a connecting line between the point on the target circular arc L0 and the center of the circle corresponding to the circular arc (C) are closer to the first substrate 10. For example, taking the first substrate 10 as being located on the horizontal plane, it is considered that a line segment of a line connecting any point on the target arc L0 and the center of the light emitting device 20 is located below a line segment of a line connecting the point on the target arc L0 and the center of the circle corresponding to the arc (C). Specifically, combining the transmission properties of the light rays, the incident light rays passing through the center of the corresponding arc coincide with the corresponding refracted light rays (e.g., L2, L5, and L8); further, for example, in fig. 2, a portion (refer to the second intersection point Q2) between the second intersection point Q2 (intersection point of L3 on the circular arc) and the third intersection point Q3 (intersection point of L2 on the circular arc) is in a divergent state because the normal line passing through the center of the circle is located below the corresponding incident light ray and the combined refraction angle needs to be greater than the incident angle, and a portion (i.e., the target circular arc L0, refer to the first intersection point Q1) between the second intersection point Q2 and the first intersection point Q1 (intersection point of L1 on the circular arc) is in a convergent state because the normal line passing through the center of the circle is located above the corresponding incident light ray and the combined refraction angle needs to be greater than the incident angle; similarly, for example, in fig. 4, the light rays in the range between the second intersection point Q2 (the point of intersection of the curved surface C and the plane B) and the third intersection point Q3 (the point of intersection of the L5 on the circular arc) (refer to the second intersection point Q2 in fig. 2) are all in a divergent state, and the light rays in the range between the first intersection point Q1 (the point of intersection of the L4 on the circular arc) and the third intersection point Q3 (the point of intersection of the L5 on the circular arc) (i.e., the target circular arc L0, refer to the first intersection point Q1) are all in a convergent state.
As will be appreciated, in conclusion of the above discussion, by setting the convex surface C to include the target circular arc L0 as described above in the present embodiment, it can be achieved that the third portion 303 includes at least a portion where convergence of light can be achieved, so that at least the risk of light mixing can be reduced. It should be noted that, in comparison with fig. 2 in fig. 3, the convex surface C corresponds to a portion including only the target arc L0 and not including the portion between the second intersection point Q2 (the intersection point of L3 on the arc) and the third intersection point Q3 (the intersection point of L2 on the arc), and the problem of light mixing can also be at least improved.
In one embodiment, as shown in fig. 1 to 3, in the same cross section perpendicular to the first substrate 10, the convex surface C is a circular arc, the circular arc and the outer surface (a) of the first portion 301 have a first intersection point Q1, and a tangent of the circular arc at the first intersection point Q1 is located in a plane (a) in which the outer surface (a) of the first portion 301 is located. It is noted that in connection with the above discussion regarding the constituent materials of encapsulant 30, air and other film layers may be included between encapsulant 30 and second substrate 40, where the refractive index of encapsulant 30 may be considered to be greater than the average refractive index of the medium between the encapsulant layer and second substrate 40, i.e., the following discussion may be based on the angle of refraction being greater than the angle of incidence.
Specifically, as shown in fig. 1 to 3, since the tangent line of the arc at the first intersection point Q1 is located in the plane (a) where the outer surface (a) of the first portion 301 is located, the first portion 301 and the third portion 303 can be considered to be tangent at the first intersection point Q1; the refraction angle (59.4 °) corresponding to the incident light ray L1 at the first intersection point Q1 is larger than the refraction angle corresponding to the incident light ray located below the first intersection point Q1, and the respective normals thereof are parallel, so that the refraction light ray corresponding to the incident light ray L1 is closer to the center of the corresponding light emitting device 20, i.e., farther from the adjacent light emitting device 20, thereby reducing the risk of light mixing.
In contrast, in fig. 4 to 5, the first portion 301 and the third portion 303 are not tangent to each other at the first intersection point Q1, for example, in fig. 4, a connection line between the first intersection point Q1 and the center of the corresponding circular arc (a normal line corresponding to L4) is located above a connection line between the center of the light emitting device 20 and the first intersection point Q1, and at this time, since the normal line corresponding to the incident light ray at the first intersection point Q1 is not parallel to the normal line corresponding to the incident light ray below the first intersection point Q1, it cannot be determined whether the refraction angle corresponding to the incident light ray L1 at the first intersection point Q1 may be larger, and it cannot be ensured whether the portion of the convex surface C near the one end portion of the first portion 301 can further function as a convergent light ray compared to the portion below the first intersection point Q1; for another example, as shown in fig. 5, a connection line (a normal line corresponding to L7) between the first intersection point Q1 and the center of the corresponding arc is located below a connection line between the center of the light emitting device 20 and the first intersection point Q1, and at this time, it can be considered that the refracted light rays corresponding to all incident light rays incident on the convex surface C are in a divergent state, so that the convex surface C at this time does not play a role in converging light rays, and is not beneficial to reducing the risk of light mixing.
In an embodiment, as shown in fig. 1, 2 and 4, the outer surface of the third portion 303 is formed by one convex surface C; in the same cross-section perpendicular to the first substrate 10, the circular arc and the outer surface (B) of the second portion 302 have a second intersection point Q2, and a tangent of the circular arc at the second intersection point Q2 is located in a plane (B) in which the outer surface (B) of the second portion 302 is located. Specifically, in combination with the above discussion, based on the tangency of the first portion 301 and the third portion 303 at the first intersection point Q1, the second portion 302 and the third portion 303 are further set to be tangent at the second intersection point Q2 in the present embodiment, so that the fluency of the outer surface of the encapsulation portion 30 can be improved, and the easy breakage caused by the existence of the corner angle can be avoided.
Specifically, the incident light L1 in fig. 3 is the same as the incident light L1 in fig. 2, the incident light L2 in fig. 3 is the same as the incident light L2 in fig. 2, and in the same cross section perpendicular to the first substrate 10, the convex surface C in fig. 3 is equivalent to a portion between the first intersection point Q1 in the convex surface C in fig. 2 and the intersection point of the incident light L2 on the convex surface C, wherein the incident light L2 passes through the center of the corresponding circular arc, that is, the second intersection point Q2 in fig. 3, the center of the corresponding circular arc, and the three center points of the light-emitting device 20 can be considered to be collinear.
As discussed above, the embodiment (fig. 2) is added to the embodiment in fig. 3 beyond the second intersection point Q2 in fig. 3 to form a quarter-circle arc. Specifically, as shown in fig. 2, for the portion beyond the second intersection point Q2 in fig. 3, for example, the incident light ray L3 is now located on the left side of the corresponding normal line, the above discussion about the refractive index is concluded, i.e., the refraction angle (20.8 °) should be larger than the incident angle (16 °), so that the corresponding refracted light ray L3' is in a divergent state. Similarly, the incident light L5 in fig. 4 also passes through the center of the corresponding circular arc, and the convex surface C also includes a portion that exceeds the incident light L5 and is close to the second portion 302, and the portion can also implement divergence of the light.
It can be understood that, while ensuring the same degree of convergence of the light emitted from the light emitting device 20 (for example, fig. 2 and 3), the embodiment (fig. 2) further provides a portion beyond the critical convergence light, so that the portion of the third portion 303 close to the second portion 302 realizes divergence of the light, so as to integrate convergence of the portion of the third portion 303 close to the first portion 301 with the light, thereby improving uniformity of the light.
In an embodiment, as shown in fig. 1 and 5, the third portion 303 further includes a concave surface D connected between the convex surface C and the second portion 302 and recessed toward the corresponding light emitting device 20. Specifically, the embodiment shown in fig. 5 differs from the embodiment shown in fig. 2 in that the portion located between the second intersection point Q2 (the intersection point of L3 on the circular arc in fig. 2) and the third intersection point Q3 (the intersection point of L2 on the circular arc) in fig. 5 is a concave surface D, and it can be understood that, since the concave surface D has a diverging action on the optical fiber, similarly to the concave action on the light ray by the portion located between the second intersection point Q2 (the intersection point of L3 on the circular arc) and the third intersection point Q3 (the intersection point of L2 on the circular arc) in fig. 2, the present embodiment improves the uniformity of the light ray by providing the portion exceeding the critical converged light ray (the third intersection point Q3) so that the portion close to the second portion 302 in the third portion 303 realizes divergence on the light ray to synthesize convergence of the portion close to the first portion 301 in the third portion 303 on the light ray.
In one embodiment, as shown in fig. 1, the outer surface of the third portion 303 includes a plurality of convex surfaces which are continuously arranged and convex in a direction away from the corresponding light emitting device 20. In this embodiment, the plurality of convex surfaces may be arc convex surfaces or other convex surfaces, and the shapes and sizes of the plurality of convex surfaces may be the same or different, and it can be understood that, in combination with the above discussion, the present embodiment may set the shapes and sizes of the plurality of convex surfaces differently according to the positions where the convex surfaces are located, so as to maximize the collection of light rays, or further consider the divergence of optical fibers at the same time.
In an embodiment, as shown in fig. 1 to 4 and 6, the roughness of the outer surface of the third portion 303 is greater than the roughness of the outer surface of the second portion 302 and the roughness of the outer surface of the first portion 301. It can be understood that, in conjunction with the above discussion, the present embodiment is based on that the outer surface of the third portion 303 is provided with the convex surface C connected to the first portion 301 and protruding in a direction away from the corresponding light emitting device 20, so that at least part of the light emitted by the light emitting device 20 can be converged by the convex surface C, thereby reducing the risk of light mixing; further, in this embodiment, the roughness of the outer surface of the third portion 303 is set to be larger, so that at least the outer surface of the convex surface C is diffusely reflected to weaken the phenomenon of low uniformity caused by the convergence of light.
In an embodiment, as shown in fig. 1 to 4 and 6, the refractive index of the third portion 303 is greater than the refractive index of the second portion 302. Specifically, taking fig. 2 to 4 as an example, based on the incident light rays with the same incident angle, the portion located in the target circular arc L0 has a stronger convergence capability for the light rays when the corresponding refraction angle is larger than the portion located on the left side of the second intersection point Q2, and the risk of light mixing can be further reduced. Specifically, the types of the constituent materials of the third portion 303 and the second portion 302 may be the same, and the refractive index difference between the two portions may be realized by setting different material ratios.
The present invention provides a display device comprising a light emitting assembly as described in any one of the above. Specifically, in conjunction with the above discussion, the light emitting assembly 100 may be used as a backlight device or a display device, and when the light emitting assembly 100 is used as a backlight device, the display device may be a liquid crystal display device, and when the light emitting assembly 100 is used as a display device, the display device may be a self-luminous display device.
The present invention provides a light emitting module and a display device, including: a first substrate; a plurality of light emitting devices on the first substrate; each packaging part comprises a first part covering the side part of the corresponding light-emitting device, a second part covering the top part of the corresponding light-emitting device, and a third part connected to one side of the first part close to the second part, wherein the outer surface of the first part is a plane; the second substrate is positioned on one side, away from the first substrate, of the plurality of packaging parts; the outer surface of the second portion is a plane, and the outer surface of the third portion comprises a convex surface which is connected to the first portion and protrudes in a direction away from the corresponding light-emitting device. On one hand, the outer surface of the second part covering the top of the corresponding light-emitting device is arranged to be a plane, so that the uniformity of light rays can be improved, and on the other hand, the outer surface of the third part is provided with a convex surface which is connected with the first part and protrudes in the direction far away from the corresponding light-emitting device, so that the risk of light mixing can be reduced.
The structure of the light emitting device and the display device including the light emitting device provided by the embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present invention in its embodiments.
Claims (10)
1. A light emitting assembly, comprising:
a first substrate;
a plurality of light emitting devices on the first substrate;
each packaging part comprises a first part covering the side part of the corresponding light-emitting device, a second part covering the top part of the corresponding light-emitting device, and a third part connected to one side of the first part close to the second part, wherein the outer surface of the first part is a plane;
the second substrate is positioned on one side, away from the first substrate, of the plurality of packaging parts;
the outer surface of the second portion is a plane, and the outer surface of the third portion comprises a convex surface which is connected to the first portion and protrudes in a direction away from the corresponding light-emitting device.
2. The light-emitting assembly according to claim 1, wherein the area of overlap of the projections of the light rays emitted from two adjacent light-emitting devices on the second substrate is 0.
3. The light emitting assembly according to claim 1, wherein in a same cross section perpendicular to the first substrate, the convex surface in the outer surface of the third portion is a circular arc, the circular arc includes a target circular arc, and a line segment of a line connecting any point on the target circular arc and a center of the light emitting device is closer to the first substrate than a line segment of a line connecting the point on the target circular arc and a center of a circle corresponding to the circular arc.
4. The light emitting assembly of claim 3, wherein in a same cross-section perpendicular to the first substrate, the convex surface is an arc of a circle, the arc and the outer surface of the first portion having a first intersection point, and a tangent to the arc at the first intersection point lies in a plane of the outer surface of the first portion.
5. The lighting assembly according to claim 4 wherein the outer surface of said third portion is defined by one of said convex surfaces;
in the same cross section perpendicular to the first substrate, the arc and the outer surface of the second portion have a second intersection point, and a tangent of the arc at the second intersection point is located in a plane where the second portion is located.
6. The light emitting assembly of claim 1, wherein the third portion further comprises a concave surface connected between the convex surface and the second portion and recessed in a direction closer to the corresponding light emitting device.
7. The light assembly of claim 1, wherein the outer surface of the third portion comprises a plurality of convex surfaces that are contiguously disposed and convex away from the corresponding light emitting device.
8. The light emitting assembly of claim 1, wherein the roughness of the outer surface of the third portion is greater than the roughness of the outer surface of the second portion and the roughness of the outer surface of the first portion.
9. The light emitting assembly of claim 1, wherein the refractive index of the third portion is greater than the refractive index of the second portion.
10. A display device, characterized in that the display device comprises a light emitting assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210934551.XA CN115241349A (en) | 2022-08-04 | 2022-08-04 | Light emitting module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210934551.XA CN115241349A (en) | 2022-08-04 | 2022-08-04 | Light emitting module and display device |
Publications (1)
| Publication Number | Publication Date |
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| CN115241349A true CN115241349A (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210934551.XA Pending CN115241349A (en) | 2022-08-04 | 2022-08-04 | Light emitting module and display device |
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| Country | Link |
|---|---|
| CN (1) | CN115241349A (en) |
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2022
- 2022-08-04 CN CN202210934551.XA patent/CN115241349A/en active Pending
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