Light-emitting device

Abstract

The present invention discloses a light-emitting device, including a light-emitting component and a coupling component. The light-emitting component defines opposite first and second sides, and a plurality of edges jointly defined by the first and second sides. The light-emitting component has a pixel substrate and a driving unit, and one end of the driving unit is connected to the pixel substrate. The coupling component is disposed on at least one of these edges of the light-emitting component or on the second side of the light-emitting component. The coupling component has a first support member, the first support member has a supporting portion located on the second side of the light-emitting component, and an accommodating space defined between the supporting portion of the first support member and at least one edge of the light-emitting component, wherein the other end of the driving unit is located in the accommodating space.

Description

Technical Field

[0001] The present invention relates to an electronic device, and particularly to a light-emitting device. Background Art

[0002] Light-emitting devices are one of the indispensable devices in modern life. The light sources used in light-emitting devices, such as from the early incandescent lamps and fluorescent lamps to the current light-emitting diode lamps, have made significant progress in luminous efficiency and lifespan. Among them, different from general incandescent lamps, fluorescent lamps or energy-saving bulbs, light-emitting diodes are cold light-emitting, with advantages such as low power consumption, long component lifespan, no warm-up time, and fast response speed. In addition, due to their small size, vibration resistance, suitability for mass production, and easy adaptation to the requirements of applications to form extremely small or array-type modules, they can be widely used in lighting equipment, information, communication, indicators of consumer electronics products, backlight modules of display devices, or / and the display itself, and have become one of the important components indispensable in daily life.

[0003] Existing light-emitting devices have gradually expanded from display to transparent display panel technology. However, the combination technology on the corresponding support modules has not been improved simultaneously, and cannot provide customers with production options that take into account both product display and light transmission. Summary of the Invention

[0004] The purpose of the present invention is to provide a light-emitting device that can meet the requirements of both display and double-sided light transmission according to the needs of users.

[0005] The present invention provides a light-emitting device, including a light-emitting component and a combining component. The light-emitting component defines opposite first and second sides, and a plurality of edges defined by the first and second sides together. The light-emitting component has a pixel substrate and a driving unit, one end of the driving unit is electrically connected to the pixel substrate, and the pixel substrate is light-transmissive. The combining component is adjacent to at least one of these edges of the light-emitting component and is connected to at least one edge of the light-emitting component or the second side of the light-emitting component. The combining component has a first support member, the first support member has a supporting portion located on the second side of the light-emitting component, and a receiving space defined between the supporting portion of the first support member and at least one edge of the light-emitting component, and the other end of the driving unit is located in the receiving space.

[0006] In one embodiment, the number of pixel substrates of the light-emitting component is multiple, and one pixel substrate is adjacent to another pixel substrate.

[0007] In one embodiment, the light-emitting component further has a plurality of optoelectronic components, and these optoelectronic components are disposed on (one or more) pixel substrates.

[0008] In one embodiment, these optoelectronic components are disposed on one side of (one or more) pixel substrates located on the first side.

[0009] In one embodiment, the light-emitting assembly further has a plurality of optoelectronic components disposed on these pixel substrates; wherein, some of these optoelectronic components are disposed on one side of one pixel substrate located on the first side, and some of these optoelectronic components are disposed on one side of the other pixel substrate located on the second side.

[0010] In one embodiment, the (one or more) pixel substrates are flexible substrates.

[0011] In one embodiment, the driving unit includes an extended substrate and a driving circuit board, one end of the extended substrate is connected to the pixel substrate, and the other end of the extended substrate is connected to the driving circuit board.

[0012] In one embodiment, the driving unit includes a driving circuit board, one end of the pixel substrate is bent to the second side of the light-emitting assembly and connected to the driving circuit board.

[0013] In one embodiment, the light-emitting device further includes at least one covering member disposed on at least one of the first side and the second side of the light-emitting assembly, and the covering member is a light-transmissive member.

[0014] In one embodiment, the (one or more) covering members are flexible members.

[0015] In one embodiment, the supporting portion of the first supporting member defines a vertical surface that is connected to and perpendicular to the second side of the light-emitting assembly.

[0016] In one embodiment, the first supporting member further has a supporting portion, the driving unit is positioned on the supporting portion, and the opposite ends of the supporting portion are respectively connected to the second side and the supporting portion of the light-emitting assembly.

[0017] In one embodiment, the combining assembly further has a second supporting member, one end of the second supporting member is connected to the first side of the light-emitting assembly or at least one of these edges, and the other end thereof is connected to one end of the first supporting member away from the light-emitting assembly.

[0018] In one embodiment, the first supporting member and the second supporting member respectively have a first abutting portion and a second abutting portion at both ends. The first abutting portion of the first supporting member is connected to the second side of the light-emitting assembly, the first abutting portion of the second supporting member is connected to the first side of the light-emitting assembly, and the second abutting portion of the first supporting member is connected to the second abutting portion of the second supporting member.

[0019] In one embodiment, the first supporting member and the second supporting member are a single integrally formed member.

[0020] In one embodiment, the numbers of the light-emitting assemblies and the combining assemblies are respectively multiple, and the light-emitting device further includes a module connecting member that connects two adjacent combining assemblies.

[0021] In one embodiment, the number of light-emitting components and the number of combining components are each plural. One of the combining components further includes a second support member, one end of which is connected to the first side of one of these light-emitting components, and the other end of which is connected to the end of one of these first support members that is away from the light-emitting component.

[0022] In one embodiment, in the combining component, the number of first support members is plural, and the light-emitting device further includes a fixing member that connects two adjacent first support members correspondingly.

[0023] In one embodiment, in the combining component, the number of second support members is plural, and the light-emitting device further includes a fixing member that connects two adjacent second support members correspondingly.

[0024] In one embodiment, a device area, a first effective area, and a second effective area are further defined in the projection direction of the light-emitting device. The first effective area is defined by the area of the first side of the light-emitting component that is not shielded by the combining component; the second effective area is defined by the area of the second side of the light-emitting component that is not shielded by the combining component; wherein, the ratio of the first effective area to the device area is greater than or equal to 90%, and the ratio of the second effective area to the device area is greater than or equal to 70%.

[0025] In one embodiment, a device area, a first effective area, and a second effective area are further defined in the projection direction of the light-emitting device. The first effective area is defined by the areas of the first sides of these light-emitting components that are not shielded by these combining components; the second effective area is defined by the areas of the second sides of these light-emitting components that are not shielded by these combining components; wherein, the ratio of the first effective area to the device area is greater than or equal to 90%, and the ratio of the second effective area to the device area is greater than or equal to 70%.

[0026] In one embodiment, one of these light-emitting components defines a first pixel pitch, and a second pixel pitch is defined between two adjacent ones of these light-emitting components, and the ratio of the second pixel pitch to the first pixel pitch is less than or equal to 3. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of a light-emitting device according to an embodiment of the present invention.

[0028] Figure 2A Schematic diagram of a light-emitting device according to another embodiment of the present invention.

[0029] Figure 2B is Figure 2A Top view schematic diagram of the light-emitting device.

[0030] Figure 3The bottom view schematic diagram of a light-emitting device according to an embodiment of the present invention.

[0031] Figures 4A to 4D , Figures 5 to 8 Schematic diagrams of light-emitting devices according to different embodiments of the present invention respectively. Detailed implementation manners

[0032] Hereinafter, with reference to the relevant drawings, a light-emitting device according to some embodiments of the present invention will be described, wherein the same components will be described with the same reference numerals.

[0033] For clearly illustrating the present invention, the drawings of the following embodiments are only schematically drawn, and the sizes and proportions of each component are only for illustrating the technology of this case and cannot limit the present invention.

[0034] The light-emitting devices of the following embodiments can be applied to lighting devices, information, communication, indicators of consumer electronic products, backlight modules of display devices, or the display devices themselves.

[0035] The light-emitting device of the present invention may include at least a light-emitting component and at least a bonding component. The at least pixel substrate is provided with a corresponding circuit layer (not shown in the figure). The at least driving unit is disposed on the pixel substrate. The at least bonding component is connected to the light-emitting component and has at least a first support member.

[0036] Figure 1 Schematic diagram of a light-emitting device according to an embodiment of the present invention. Please refer to Figure 1 As shown, the light-emitting component 11 is defined with opposite first side S1 and second side S2, and a plurality of edges S3 defined by the first side S1 and the second side S2 together. Here, the first side S1 of the light-emitting component 11 in this article may include the upper surface of the light-emitting component 11 and the range above it. The second side S2 of the light-emitting component 11 may include the lower surface of the light-emitting component 11 and the range below it. And the edge S3 may be the periphery of the light-emitting component 11; please refer to Figure 3 As shown, in some embodiments, the periphery can be understood to include the 4 edges S3 of the light-emitting component 11.

[0037] The light-emitting component 11 has a pixel substrate 111 and a driving unit 112. The pixel substrate 111 is provided with corresponding circuit layers (not shown in the figure), and is not limited to an Active Matrix (AM) circuit or a Passive Matrix (PM) circuit. The driving unit 112 is electrically connected to the circuit layer of the pixel substrate 111. The pixel substrate 111 herein is light-transmissive, and the "light-transmissive" herein only excludes "opaque" and may include at least partially transparent states such as "transparent" or "semi-transparent", for example, the pixel substrate 111 after the circuit layer is provided presents a light transmittance (or aperture ratio) that is not 100%, or the haze formed by the pixel substrate 111 due to its own material. In addition, the light-emitting component 11 of this embodiment further has a plurality of optoelectronic components 113, and these optoelectronic components 113 are disposed on the pixel substrate 111. These optoelectronic components 113 of this embodiment are disposed on one side of the pixel substrate 111 located on the first side S1. In some embodiments, the layout shape of the pixel substrate 111 or these optoelectronic components 113 may be, for example, rectangular, elongated, polygonal (such as quadrilateral), circular, elliptical or irregular; or, the layout of these optoelectronic components 113 may be in an array, which is not limited herein.

[0038] As Figure 1 shown, these optoelectronic components 113 are disposed on the upper surface of the pixel substrate 111 and emit light in a direction opposite to the second side S2 (i.e., upward), but this is not limited thereto. In different embodiments, these optoelectronic components 113 may be disposed on the upper surface of the pixel substrate 111 and emit light in a direction opposite to the first side S1 (i.e., downward); or, these optoelectronic components 113 may also be disposed on the lower surface of the pixel substrate 111 and emit light upward; or, these optoelectronic components 113 may also be disposed on the lower surface of the pixel substrate 111 and emit light downward; or, optoelectronic components 113 are disposed on both the upper surface and the lower surface of the pixel substrate 111, and their light-emitting directions may be configured to be the same or different; or, optoelectronic components 113 are disposed on the upper surface of one pixel substrate 111 and the lower surface of another pixel substrate 111, and the light-emitting directions may be configured to be the same or different, and the present invention is not limited thereto.

[0039] The foregoing optoelectronic component 113 is a self-luminous component, such as but not limited to a light-emitting diode chip (LED chip), a mini light-emitting diode chip (miniLED chip), a micro light-emitting diode chip (microLED chip), or its package, or a light-emitting chip or package with dimensions of millimeters, micrometers, or below. Here, a millimeter-scale package may include a micrometer-scale chip, or a micrometer-scale package may include a nanometer-scale chip. The foregoing chip may be a die with a horizontal electrode, a flip-chip electrode, or a vertical electrode, and is electrically connected to the pixel substrate 111 (circuit layer) by means such as wire bonding or flip chip bonding. The foregoing package is not limited to a package with an active component or a passive package without an active component. The active component is such as but not limited to a thin-film transistor (TFT) or a silicon integrated circuit (Silicon IC).

[0040] The driving unit 112 includes driving components, units, chips, and / or circuits (not shown) for driving the optoelectronic component 113, so as to drive the optoelectronic component 113 on the pixel substrate 111 to emit light. Here, the driving components, units, chips, and / or circuits include but are not limited to, for example, silicon integrated circuits, and the manner in which the driving unit 112 is electrically connected to the pixel substrate 111 is not limited. The driving unit 112 of this embodiment includes an extension substrate 1121 and a driving circuit board 1122. One end of the extension substrate 1121 is connected to the pixel substrate 111, and the other end thereof may be connected to the driving circuit board 1122, and the driving components may be disposed on the driving circuit board 1122. Among them, the extension substrate 1121 is, for example but not limited to, a flexible substrate (such as COF), and the driving circuit board 1122 may be a rigid circuit board or a flexible circuit board. In addition, the extension substrate 1121 or the driving circuit board 1122 may also be omitted. For example, in some embodiments, the driving unit 112 only includes the driving circuit board 1122. For example, one end of a pixel substrate 111 of the light-emitting component 11 is bent and placed on the second side S2 of the light-emitting component 11, and the driving circuit board 1122 is connected to the foregoing pixel substrate 111. Also, for example, some of the driving components, units, chips, and / or circuits may be disposed on the extension substrate 1121, and some of the driving components, units, chips, and / or circuits may be disposed on the driving circuit board 1122. Also, for example, the driving circuit board 1122 or the driving components, units, chips, and / or circuits may be directly disposed on the side of the pixel substrate 111 where no optoelectronic component is provided and kept electrically connected to the side of the pixel substrate 111 where the optoelectronic component 113 is provided, without being limited. In the driving unit 112 of this embodiment, the extension substrate 1121 extends from one end edge S3 of the light-emitting component 11, and the driving circuit board 1122 is located on the second side S2 of the light-emitting component 11, so as to expand the light-emitting area of the light-emitting component 11 (for example, the light-emitting area with the optoelectronic component 113 is larger).

[0041] In addition, the light-emitting component 11 further has at least one covering member provided on at least one of the first side S1 and the second side S2 of the light-emitting component 11. In this embodiment, the covering member 13a is disposed on the second side S2 of the light-emitting component 11 and is connected under the pixel substrate 111 in the form of a support substrate. Here, the pixel substrate 111 and / or the covering member 13a (which may also be referred to as a support substrate) is a light-transmitting substrate and can be a rigid substrate (such as a glass substrate), a flexible substrate, or a combination thereof (such as a flexible substrate stacked on a rigid substrate). The rigid substrate is, for example but not limited to, a glass substrate, and the flexible substrate is, for example but not limited to, a polyimide (PI) substrate. In some embodiments, if the covering member 13a (support substrate) is a rigid substrate, the pixel substrate 111 is a rigid substrate or a flexible substrate, and vice versa. In some embodiments, the covering member 13a (support substrate) and the pixel substrate 111 can also be flexible substrates at the same time, and their tautness can be maintained by the rigid bonding component 12. Additionally, in this embodiment, another covering member 13b is disposed on the first side S1 of the light-emitting component 11. The covering member 13b of this embodiment covers these optoelectronic components 113, and the light-emitting component 11 can further include an adhesive layer 14. The adhesive layer 14 is disposed on at least one surface of the pixel substrate 111 where these optoelectronic components 113 are provided and is located at the edge S3 of the light-emitting component 11. The adhesive layer 14 can be located between the covering member 13b and the pixel substrate 111; through the setting of the adhesive layer 14, the covering member 13b can be connected to the pixel substrate 111 to cover these optoelectronic components 113, so as to protect the optoelectronic components 113 from the intrusion of moisture or foreign objects and damage their characteristics. In some embodiments, the adhesive layer 14 can be fully laid on the pixel substrate 111 to connect the pixel substrate 111 and the covering member 13b. At this time, the adhesive layer 14 can be transparent. In this embodiment, the covering member 13b is a light-transmitting member, such as a protective cover plate (such as a rigid glass substrate or a flexible PI substrate), or a protective film layer (such as a protective glue cured to form a rigid or flexible film layer); among them, the protective film layer can be formed by first coating and curing on the pixel substrate 111, or can be cured first and then attached to the pixel substrate 111, without limitation. The covering member 13b of this embodiment is, for example, a light-transmitting glass, so that the light emitted by the optoelectronic components 113 can pass through the covering member 13b and shoot upward. In some embodiments, if the covering member 13b is subjected to an anti-reflection film treatment, the light-emitting device 1 can have a higher light extraction efficiency. In addition, the covering members 13a and 13b are both light-transmitting as described herein, and the covering members 13a and 13b can also be flexible at the same time.

[0042] The combining component 12 is adjacent to and disposed on at least one of the end edges S3 of the light-emitting component 11 or the second side S2 of the light-emitting component 11, and is connected to at least one of the end edges S3 or the second side S2 of the light-emitting component 11. In this embodiment, the combining component 12 is disposed on the second side S2 of the light-emitting component 11 and connected to the light-emitting component 11 as an example. In some embodiments, according to the combining requirements of the light-emitting component 11, the top view (i.e., along the projection direction of the light-emitting device 1, the viewing direction from the first side S1 to the second side S2) shape of the combining component 12 can be a long strip shape that only fits the single end edge S3 of the light-emitting component 11, an L shape that fits two adjacent end edges S3 of the light-emitting component 11, a polygon (such as a quadrilateral), a circle, an ellipse or an irregular shape that fits the periphery of the light-emitting component 11, without limitation. In some embodiments, the combining component 12 can include a single integrally formed member, or include a plurality of members that can be combined together, without limitation.

[0043] In this embodiment, the coupling component 12 has at least a first support member 121. The first support member 121 has a supporting portion 1211 located on the second side S2 of the light-emitting component 11, and a receiving space S4 defined between the supporting portion 1211 of the first support member 121 and at least one edge S3 of the corresponding light-emitting component 11. In this embodiment, the first support member 121 is connected to the lower surface of the covering member 13a (support substrate) located on the second side S2. In addition, a vertical surface 1212 that is connected to and perpendicular to the second side S2 of the light-emitting component 11 is defined on the supporting portion 1211 of the first support member 121 in this embodiment. The supporting portion 1211 can reduce the range of light being blocked (i.e., maintain a larger light-emitting range). For example, the light-emitting light of the optoelectronic component 113 that emits light toward the second side S2, or the light-transmitting light that penetrates the pixel substrate 111 and / or the covering member 13a (support substrate) can emit light at least along the projection direction of the light-emitting component 11, thereby reducing the chance of being blocked by the first support member 121 of the coupling component 12. Here, the "vertical surface 1212" refers to the surface of the supporting portion 1211 that is perpendicular to the pixel substrate 111 or the covering member 13a on the second side S2. That is, the "vertical surface 1212" is connected to the lower surface of the pixel substrate 111 or the covering member 13a of the light-emitting component 11 along the projection direction of the light-emitting component 11 (the pixel substrate 111 and / or the covering member 13a), and is perpendicular to the lower surface of the pixel substrate 111 or the covering member 13a of the light-emitting component 11. It can be understood here that the supporting portion 1211 can be a component without any vertical surfaces, then the supporting portion 1211 can still form a virtual vertical surface along the projection direction; the supporting portion 1211 itself can be a component with a vertical surface, and the vertical surface is the aforementioned "vertical surface 1212", and this vertical surface 1212 can reduce the influence of the light transmission disturbed by the supporting portion 1211. It is worth noting that the overall design of the coupling component 12 (the first support member 121) can simultaneously achieve the following advantages: reducing the range of light being blocked and providing support for any edge S3 of the light-emitting component 11 (including the pixel substrate 111, and / or the covering members 13a, 13b).

[0044] It is worth noting that the light-emitting component 11 in the present invention can be in a planar shape, which can have higher structural rigidity compared to a strip shape; or, the light-emitting component 11 can also be in a strip shape, and it is sufficient to be supported by any one edge S3; or, the light-emitting component 11 can include multiple pixel substrates, and the multiple pixel substrates can be rigidly or flexibly supported by the covering members on or under them, or can be connected to each other adjacent in other electrical or non-electrical ways (such as attaching to each other with edges), and there is no limitation here. It is further noted that the aforementioned receiving space S4 can be a closed space or an open space. The receiving space S4 in this embodiment is taken as an open space as an example, and the other end of the driving unit 112 (such as the driving circuit board 1122) is located in the receiving space S4.

[0045] In addition, the first support member 121 of the present embodiment further has a supporting portion 1213, and the supporting portion 1213 connects the light-emitting component 11 and the supporting portion 1211. In detail, the opposite ends of the supporting portion 1213 are respectively connected to one surface of the light-emitting component 11 located on the second side S2 and the end of the supporting portion 1211 away from the light-emitting component 11, and the driving unit 112 is positioned on the supporting portion 1213 (for example, in a fitting manner); wherein, one end of the supporting portion 1213 connected to the light-emitting component 11 can be connected to one surface of the light-emitting component 11 located on the second side S2 or the corresponding edge S3, or even the first side S1. As described above, the first side S1 and the second side S2 may include, but are not limited to, the upper surface of the pixel substrate 111 located on the first side S1, the lower surface of the pixel substrate 111 located on the second side S2, or the lower surface of the covering member 13a (supporting substrate) located on the second side S2. The two ends of the first support member 121 of the present embodiment have a first abutting portion 121a and a second abutting portion 121b, and the first abutting portion 121a and the second abutting portion 121b of the first support member 121 are parallel to one surface of the light-emitting component 11 located on the second side S2; wherein, the first abutting portion 121a is connected to one surface of the light-emitting component 11 located on the second side S2. Here, the first abutting portion 121a is connected to the lower surface of the covering member 13a (supporting substrate) through the adhesive 15, and the two ends of the first abutting portion 121a are also respectively connected to one end of the supporting portion 1211 and one end of the supporting portion 1213. In addition, one end of the second abutting portion 121b of the present embodiment is simultaneously connected to the other end of the supporting portion 1211 and the other end of the supporting portion 1213. Here, the first abutting portion 121a, the second abutting portion 121b, the supporting portion 1211, and the supporting portion 1213 form a triangular structure that can achieve force balance; it can be understood that the force balance structure is not limited to the triangular structure, and the described triangular structure is not limited to the foregoing structure either. For example, one end of the supporting portion 1213 can be connected to any section of the supporting portion 1211, and the other end can be connected to the edge S3 of the light-emitting component 11.

[0046] In addition, the first support member 121 of the coupling component 12 may be a long strip that only fits the single edge S3 of the light-emitting component 11, an L shape that fits the adjacent two edges S3 of the light-emitting component 11, a U shape that fits the three consecutive edges S3 of the light-emitting component 11, a polygon (such as a rectangle), a circle, an ellipse or an irregular shape that fits the continuous periphery of the light-emitting component 11, without limitation. It can be understood that when the first support member 121 of the coupling component 12 fits the polygon of the continuous periphery of the light-emitting component 11, it can be in a closed state of circular connection or an open state with an opening; furthermore, a coupling component 12 may include more than one first support member 121, such as a pair of long strips or a pair of L shapes. In addition, in the first support member 121 of the coupling component 12, the supporting portion 1213 and the supporting portion 1211 may be an integrally formed single member, or two independent members that can achieve force balance through combination, without limitation; and the first abutting portion 121a and the second abutting portion 121b may also be included in the aforementioned single member or independent member.

[0047] Please refer to Figure 2A and Figure 2B as shown, in which, Figure 2A is a schematic diagram of a light-emitting device according to another embodiment of the present invention, and Figure 2B is Figure 2A a top view schematic diagram of the light-emitting device. Here, Figure 2B for illustration purposes, only some components are shown.

[0048] Such as Figure 2AAs shown, the component composition and the connection relationship of each component of the light-emitting device 1a in this embodiment are substantially the same as those of the light-emitting device in the foregoing embodiment. The difference lies in that, in addition to the first support member 121, the coupling component 12 of the light-emitting device 1a in this embodiment may further have a second support member 122. One end of the second support member 122 is connected to one surface located on the first side S1 of the light-emitting component 11 or at least one of these edges S3, and the other end thereof is connected to the end of the first support member 121 away from the light-emitting component 11. Taking the example that one end of the second support member 122 in this embodiment is connected to one surface located on the first side S1 of the light-emitting component 11 (i.e., the upper surface of the covering member 13b). Here, the second support member 122 has a first abutting portion 122a and a second abutting portion 122b at both ends, and the first abutting portion 122a and the second abutting portion 122b are parallel to the surface of the light-emitting component 11 located on the second side S2. Among them, the first abutting portion 122a of the second support member 122 is connected to the upper surface of the covering member 13b located on the first side S1 of the light-emitting component 11, and the second abutting portion 122b of the second support member 122 is connected to the second abutting portion 121b of the first support member 121. Here, the second abutting portion 121b of the first support member 121 and the second abutting portion 122b of the second support member 122 can be connected to each other by, for example, fitting, locking, pressing, welding, tenoning, or other means, or integrally formed, thereby increasing the overall mechanical strength of the coupling component 12. In this embodiment, one end of the second support member 122 presses the first support member 121 in a snap-fit manner, but it is not limited thereto. For example, the first abutting portion 122a of the second support member 122 does not extend to the upper surface of the covering member 13b of the light-emitting component 11, but only adheres to the edge S3 of the light-emitting component 11. It should be noted that the first abutting portion 122a of the second support member 122 connected to the upper surface of the covering member 13b of the light-emitting component 11 should not shield the upper surface of the covering member 13b of the light-emitting component 11 as much as possible. In addition, the accommodating space S4 in this embodiment can be a closed space, and the closed space can be jointly defined by the second support member 122 and the first support member 121, and the driving circuit board 1122 is located in the enclosed accommodating space S4, or positioned (for example, fitted) on the side of the supporting portion 1213 of the first support member 121 facing the second support member 122. In this embodiment, the second support member 122 is U-shaped; the first abutting portion 122a and the second abutting portion 122b of the second support member 122 respectively form a triangular structure capable of achieving force balance with the second abutting portion 121b of the first support member 121 and the covering member 13b located on the first side S1 of the light-emitting component 11. Similarly, it can be understood that the force balance structure is not limited to the triangular structure.

[0049] In addition, the second support member 122 of the coupling assembly 12 may be a long strip that only fits one end edge S3 of the light-emitting assembly 11, or an L shape that fits two adjacent end edges S3 of the light-emitting assembly 11, or a U shape that fits three consecutive end edges S3 of the light-emitting assembly 11, or a polygon that fits the continuous periphery of the light-emitting assembly 11, and there is no limitation here. It can be understood that when the second support member 122 of the coupling assembly 12 fits the polygon of the continuous periphery of the light-emitting assembly 11, it can be in an open state with an opening; in addition, one coupling assembly 12 may include more than one second support member 122, for example, it can be a pair of long strips or a pair of L shapes; furthermore, in one coupling assembly 12, the configuration and number of the second support members 122 may or may not correspond to the first support member 121, and there is no limitation. Moreover, the first support member 121 and the second support member 122 of the coupling assembly 12 may be a single integrally formed member, or two independent members that can achieve force balance through combination, and there is no limitation either.

[0050] It is worth noting that the above-mentioned coupling assembly 12 and the light-emitting assembly 11 are preferably configured in a one-to-one manner, and the pixel substrate 111 of the light-emitting assembly 11 can be configured as single on one side (meaning single in number and located on one side), multiple on one side (meaning multiple in number and located on one side), single on each of the two sides (meaning single in number and located on the first side S1 and the second side S2 respectively), or multiple on each of the two sides (meaning multiple in number and located on the first side S1 and the second side S2 respectively). Moreover, the coupling assembly 12 may at least include a first support member 121, and the number of the first support members 121 is at least one, or the coupling assembly 12 may further include at least one second support member 122. In the following embodiments, one side will be exemplified by the first side S1 of the light-emitting assembly 11, and will be described in detail in combination with the coupling assembly 12 later. For example, in some embodiments, the pixel substrate 111 of the light-emitting assembly 11 can be configured on one side or both sides, and the coupling assembly 12 may only include a first support member 121 with a single end edge S3, which is one light-emitting assembly 11 paired with one coupling assembly 12; or, in some embodiments, the pixel substrate 111 in the light-emitting assembly 11 can be configured on one side or both sides, and the coupling assembly 12 may include two L-shaped first support members 121, which is also one light-emitting assembly 11 paired with one coupling assembly 12; or, the pixel substrate 111 of the light-emitting assembly 11 can be configured on one side or both sides, and the coupling assembly 12 may include four first support members 121 surrounding four end edges S3, which is one light-emitting assembly 11 paired with one coupling assembly 12; or, the pixel substrate 111 of the light-emitting assembly 11 can be configured on one side or both sides, and the coupling assembly 12 may include a frame-shaped first support member 121 surrounding four end edges S3, which is also one light-emitting assembly 11 paired with one coupling assembly 12; and so on.

[0051] In addition, the manner in which the combining component 12 further includes a second support member 122 is, for example but not limited to: in some embodiments, the pixel substrate 111 of the light-emitting component 11 is configured to be single-sided or double-sided. The combining component 12 may include only a first support member 121 with a single edge S3 and a second support member 122 with a single edge S3 corresponding to the first support member 121. This is one light-emitting component 11 paired with one combining component 12. Or, the pixel substrate 111 of the light-emitting component 11 is configured to be single-sided or double-sided. The combining component 12 may include a frame-shaped first support member 121 surrounding four edges S3 and two L-shaped second support members 122 corresponding to the frame-shaped first support member 121. This is also one light-emitting component 11 paired with one combining component 12. Or, the pixel substrate 111 of the light-emitting component 11 may be configured to be single-sided or double-sided. The combining component 12 may include a frame-shaped first support member 121 surrounding four edges S3 and a U-shaped second support member 122 corresponding to the frame-shaped first support member 121. This is also one light-emitting component 11 paired with one combining component 12. Here, the first support member 121 surrounding four edges S3 may be composed of four first support members 121 provided on a single edge S3 or two L-shaped first support members 121 provided on adjacent edges S3. Herein, the configuration and quantity of the second support member 122 can be analogized in this way. In addition, the configurations and quantities of the first support member 121 and the second support member 122 of each combining component 12 may or may not correspond to each other. The first support member 121 and the second support member 122 may be integrally formed or are independent components, which are all examples and do not limit the present invention.

[0052] In addition, please refer to again Figure 2AAs shown in FIG. 2B, in the projection direction of the light-emitting device 1a of the present embodiment, a device area DUA, a first effective area DA, and a second effective area NSA are further defined. Here, the device area DUA is the total module area projected along the projection direction of the light-emitting device 1a (looking down on the light-emitting device 1a from above the light-emitting device 1a), and the first effective area DA is defined by the area of the first side S1 of the light-emitting component 11 that is not shielded by the bonding component 12 (i.e., the first abutting portion 122a of the second support member 122), and the second effective area NSA is defined by the area of the second side S2 of the light-emitting component 11 that is not shielded by the bonding component 12. Here, the first effective area DA includes the actual light-emitting area or display area of the light-emitting device 1a on the first side S1, as well as the area through which light can penetrate; similarly, the second effective area NSA also includes the actual light-emitting area or display area (if any) of the light-emitting device 1a on the second side S2, as well as the area through which light can penetrate. In some embodiments, the ratio of the first effective area DA to the device area DUA may be greater than or equal to 90% and less than or equal to 100%, and the ratio of the second effective area NSA to the device area DUA may be greater than or equal to 70% and less than or equal to 100%.

[0053] In addition, Figure 3 is a bottom view schematic diagram of a light-emitting device according to an embodiment of the present invention. As Figure 3 shown, in the bonding component 12 of the light-emitting device 1b, the number of the first support member 121 and / or the second support member 122 may be multiple (for example, four), and the light-emitting device 1b may further include at least one fixing member 16, and the fixing member 16 connects two adjacent first support members 121 or two adjacent second support members 122. Here, in this embodiment, four fixing members 16 are respectively connected to two adjacent second support members (not labeled) as an example (for example, the long side is connected to the short side), thereby strengthening the structural stability of the bonding component 12.

[0054] As described above, a single light-emitting device may have multiple pixel substrates 111 spliced together. Figures 4A to 4D 、 Figures 5 to 8 are schematic diagrams of light-emitting devices according to different embodiments of the present invention, which respectively show different splicing patterns of the pixel substrates 111.

[0055] As Figure 4A shown, the component composition and the connection relationship of each component of the light-emitting device 1c of the present embodiment are substantially the same as those of the light-emitting device in the foregoing embodiment. The difference is that in the light-emitting device 1c of the present embodiment, the number of pixel substrates 111 of the light-emitting component 11 is multiple, and these pixel substrates 111 are adjacent to each other. As Figure 4AAs shown, the light-emitting device 1c of this embodiment is spliced in the horizontal direction. That is, taking one pixel substrate 111 being horizontally adjacent to another pixel substrate 111 as an example, and these optoelectronic components 113 are disposed on these pixel substrates 111. In particular, these optoelectronic components 113 are disposed on one side of these pixel substrates 111 located on the first side S1. In addition, a covering member 13b covers these optoelectronic components 113 of these pixel substrates 111. In different embodiments, the number of the covering members 13b may also correspond to the pixel substrates 111 (for example, one-to-one configuration with the same number), and the present invention is not limited thereto.

[0056] In addition, in some embodiments where the pixel substrates 111 are spliced in the horizontal direction, such as Figure 4B As shown, for example, when two pixel substrates 111 are located on one side of the first side S1 and are disposed between the covering members 13a and 13b and are spliced adjacent to each other at the end edges, among the multiple optoelectronic components 113 of the light-emitting component 11, some of these optoelectronic components 113 may be disposed on one side of one pixel substrate 111 located on the first side S1 (i.e., disposed on the upper side of one pixel substrate 111) and emit light upward, and some of these optoelectronic components 113 may be disposed on one side of the other pixel substrate 111 facing the second side S2 (i.e., disposed on the lower side of the other pixel substrate 111) and emit light downward. Thus, the light-emitting device can be an electronic device with double-sided light emission and double-sided light transmission. In different embodiments, these optoelectronic components 113 disposed on the lower side of the other pixel substrate 111 may also emit light upward to be an electronic device with single-sided light emission and double-sided light transmission, and the present invention is not limited thereto.

[0057] In addition, in some embodiments where the pixel substrates 111 are spliced in the vertical direction, such as Figure 4C As shown, for example, when two pixel substrates 111 are located on one side of the first side S1 and one pixel substrate 111 is located on one side of the second side S2 and are vertically spliced, among the multiple optoelectronic components 113 of the light-emitting component 11, some of these optoelectronic components 113 may be disposed on one side of one pixel substrate 111 located on the first side S1 (i.e., disposed on the upper side of one pixel substrate 111) and, for example, emit light upward, and some of these optoelectronic components 113 may be disposed on one side of the other pixel substrate 111 facing the first side S1 (i.e., also disposed on the upper side of the other pixel substrate 111) and, for example, emit light upward. Thus, the light-emitting device can be an electronic device with single-sided light emission and double-sided light transmission. In Figure 4C this case, these optoelectronic components 113 respectively emit light upward, and some of the optoelectronic components 113 located on one side of the first side S1 and some of the optoelectronic components 113 located on one side of the second side S2 are disposed in a staggered manner. In addition, when vertically splicing, when multiple driving units 112 for electrically connecting the light-emitting pixel substrates 111 located on the first side S1 and the second side S2 exist simultaneously, they may also be disposed in a staggered manner (not shown in the figure).

[0058] In addition, in some embodiments where the pixel substrates 111 are vertically spliced, such as Figure 4D shown, for example, when two pixel substrates 111 are on one side of the first side S1 and one pixel substrate 111 is on one side of the second side S2 and are spliced back to back, among the multiple optoelectronic components 113 of the light-emitting component 11, some of these optoelectronic components 113 can be disposed on one side of one pixel substrate 111 located on the first side S1 (i.e., disposed on the upper side of one pixel substrate 111), and for example, emit light upward, and some of these optoelectronic components 113 can be disposed on one side of the other pixel substrate 111 located on the second side S2 (i.e., disposed on the lower side of the other pixel substrate 111), and for example, emit light downward. Thus, the light-emitting device can be a double-sided light-emitting electronic device. In Figure 4D this case, among the two vertically spliced pixel substrates 111, these optoelectronic components 113 emit light upward and downward respectively, and the optoelectronic components 113 located on the first side S1 and the optoelectronic components 113 located on the second side S2 are mirror-symmetrically arranged (i.e., the upper and lower positions correspond). In addition, when multiple driving units 112 for electrically connecting the light-emitting pixel substrates 111 located on the first side S1 and the second side S2 exist at the same time, they can also be arranged in a staggered manner (not shown in the figure).

[0059] It should be noted that in this article, the cover 13a (support substrate) and the cover 13b can both exist at the same time, be selectively omitted, or be omitted at the same time; in the case of selective omission or simultaneous omission, the multiple pixel substrates 111 can be adhered to each other, or be pressed together through the combining component 12, or be adjacently combined through other equivalent technical means. In addition, the cover 13b is used to cover the corresponding optoelectronic components 113, so it can be selectively disposed on the first side S1 or the second side S2 of the light-emitting component 11 according to the configuration of the optoelectronic components 113. In addition, the aforementioned Figures 4B to 4D cover 13a (support substrate) can be omitted, or the cover 13a (support substrate) and the cover 13b can be selectively omitted.

[0060] In addition, as Figures 5 to 7 shown, Figures 5 to 7The light-emitting devices 1d to 1f are substantially the same as the light-emitting device of the foregoing embodiment in terms of their component composition and the connection relationship of each component. The difference lies in that the light-emitting devices 1d to 1f are horizontally spliced from the foregoing light-emitting device 1c as an example. In these embodiments, the number of the light-emitting components 11 and the combination components 12 of the light-emitting devices 1d to 1f can be multiple respectively to further strengthen the splicing structure. Among them, the light-emitting devices 1d to 1f can further include at least one module connector 17a, 17b, 17c respectively, and the module connectors 17a, 17b, 17c connect the first support members 121 and / or the second support members 122 of two adjacent ones of these light-emitting components 11. Here, the module connector 17a can be a U-shaped structure (for example Figure 5 and Figure 7 embodiments of the light-emitting devices 1d, 1f), or, the module connector 17b can be a single sheet-like structure (for example Figure 6 embodiment of the light-emitting device 1e). The above-mentioned module connectors 17a, 17b, 17c can be separately connected to the first support member 121, or separately / simultaneously connected to these second support members 122, for example, by locking, bonding, welding, or pressing, etc., and the present invention is not limited.

[0061] As Figure 5 shown, the module connector 17a includes a sheet body and two end portions extending from both ends of the sheet body, thus forming a U-shaped structure. The two ends of the module connector 17a press against the supporting portions 1211 of two adjacent first support members 121 towards each other. In addition, the sheet body of the module connector 17a can further abut against the second abutting portions 122b of two adjacent second support members 122. In addition, as Figure 6 shown, the module connector 17b is a sheet body fixed (such as locking, bonding, welding, etc.) to the second abutting portions 122b of two adjacent second support members 122. In some embodiments, Figure 5 , Figure 6 the module connectors 17a, 17b can be implemented simultaneously.

[0062] In some embodiments, as Figure 7 shown, the light-emitting device 1f is substantially the same as the light-emitting device of the foregoing embodiment (for example Figure 5 ) in terms of its component composition and the connection relationship of each component. The difference lies in that each combination component 12 (the first support member 121 and the second support member 122) of the light-emitting device 1f is a single integrally formed member; among them, the first support member 121 and / or the second support member 122 can have an elastic section fs, and can press against the module connector 17c. It can be understood that the object pressed by the module connector can be the first support member 121 and / or the second support member 122; in addition, in some embodiments, as Figure 8 shown, the module connector 17d can be as Figure 5For the U-shaped structure of the module connector 17a, both ends of the module connector 17d also press against the supporting portions 1211 of two adjacent first supporting members 121 towards each other. In addition, the sheet body of the module connector 17d can further connect the second abutting portions 121b of two adjacent first supporting members 121.

[0063] It can be understood that the configurations and quantities of the first supporting members 121 and the second supporting members 122 in the single combining assembly 12 may or may not correspond to each other; in two respective independent combining assemblies 12, the configurations and quantities of the first supporting members 121 and the second supporting members 122 may also or may not correspond to each other. For example Figure 7 in each combining assembly 12, the first supporting members 121 can be arranged on the four edges S3 of the light-emitting assembly 11 to form a quadrilateral, and the second supporting members 122 can be arranged on three of the edges S3 of the light-emitting assembly 11 to form a U shape; therefore, for each combining assembly 12, there is one edge S3 of its light-emitting assembly 11 that is not provided with a second supporting member 122 for fixing, but is maintained by the module connector 17c. It can be understood that the numbers of the light-emitting assemblies 11 and the combining assemblies 12 are respectively multiple, and these combining assemblies 12 further respectively include second supporting members 122, and one end of this second supporting member 122 is connected to at least one edge S3 or the first side S1 of one of these light-emitting assemblies 11 (for example, the second supporting member 122 is located at Figure 5 the leftmost or rightmost edge S3 of the light-emitting device 1d), and the other end is connected to at least the end of the first supporting member 122 that is far from the light-emitting assembly 11. Furthermore, taking Figure 7 as an example, the numbers of the light-emitting assemblies 11 and the combining assemblies 12 are respectively two, and each combining assembly 12 further respectively includes a second supporting member 122, and one end of this second supporting member 122 is connected to the first side S1 of each light-emitting assembly 11, and the other end is connected to the end of each first supporting member 122 that is far from the light-emitting assembly 11.

[0064] In addition, taking Figure 5For example, one of these light-emitting components 11 of the light-emitting device 1d defines a first pixel pitch DP, and a second pixel pitch CDP is defined between two adjacent ones of these light-emitting components 11. The ratio of the second pixel pitch CDP to the first pixel pitch DP can be greater than or equal to 1 and / or less than or equal to 3, for example. In some embodiments, the ratio of the second pixel pitch CDP to the first pixel pitch DP can be greater than 1 and / or less than or equal to 2, for example. Here, the first pixel pitch DP is the distance between the centerlines of two optoelectronic components 113 in the same light-emitting component 11, and the second pixel pitch CDP is the distance between the centerlines of the two closest optoelectronic components 113 in two adjacent light-emitting components 11. In some embodiments, the second pixel pitch CDP can be, for example, 1 mm, and the first pixel pitch DP can be, for example, 0.6 mm. Therefore, the ratio of the second pixel pitch CDP to the first pixel pitch DP can be 1.67. In some embodiments, when the light-emitting device is, for example, 22 inches, the width of its border area can be, for example, 3 cm.

[0065] In addition, as described above Figure 2A for the light-emitting device 1a, Figure 5 and Figure 6 in the projection direction of the light-emitting devices 1d and 1e of the embodiments, a device area, a first effective area, and a second effective area (not labeled) are also defined. The first effective area is defined by the area of these first sides S1 of these light-emitting components 11 that are not shielded by these bonding components 12; the second effective area is defined by the area of these second sides S2 of these light-emitting components 11 that are not shielded by these bonding components 12; wherein, the ratio of the first effective area to the device area can be greater than or equal to 90% and less than or equal to 100%, and the ratio of the second effective area to the device area can be greater than or equal to 70% and less than or equal to 100%.

[0066] As can be seen from the above embodiments, the user can design a light-emitting device composed of one pixel substrate or spliced by multiple pixel substrates according to the user's needs, so as to produce a product that takes into account both display and single / double-sided light transmission. The light-emitting component and the combining component of the present invention are preferably configured in a one-to-one manner. For example, the pixel substrates of the light-emitting component can be single on one side, multiple on one side, single on each of the two sides, or multiple on each of the two sides; the combining component at least includes a first support member, and the number of the first support members is at least one, or further includes at least one second support member, and the configurations and numbers of the first support member and the second support member are not limited to corresponding to each other; in the same combining component, the fixing member can strengthen the stability of a single combining component; in the splicing of multiple combining components, the module connecting member can strengthen the stability between two adjacent combining components; in the splicing of multiple combining components, the fixing member or the module connecting member can also be used in an alternating manner; the pixel substrate (and its covering) in the light-emitting component can be transparent (or further flexible), so that the light emitted by the optoelectronic component laid on one side can also penetrate the light-emitting component for double-sided light transmission; in addition, the combining component at least maintains the visible state of the light-emitting component by the first support member, and due to the vertical surface design of the first support member, the maximum light-emitting range on one side or both sides can be maintained. In addition, the double-sided light transmission mentioned in the present invention can be understood to include: the direct light from the optoelectronic component that does not penetrate the pixel substrate, or the indirect light from the optoelectronic component that penetrates the pixel substrate, or can be understood as the ambient light that penetrates the pixel substrate.

[0067] In summary, in the light-emitting device of the present invention, through the structural design of the quantity configuration of the through-components (such as the light-emitting component and the combining component) and the sub-components (such as the pixel substrate in the light-emitting component, or the first support member, the second support member, the module connecting member, the fixing member, etc. in the combining component) in the same component / same sub-component, or different components / different sub-components, the edge of the combining component adjacent to the light-emitting component is located as close as possible to the second side of the light-emitting component (at most at the edge of the light-emitting component), thereby reducing the chance of blocking the first side of the light-emitting component, so that the light-emitting device of the present invention can reduce the discontinuity of the picture formed by module splicing on the first side and reduce the range of light being blocked on the second side, taking into account the advantages of both display and double-sided light transmission, and thus having manufacturing flexibility to meet diverse product requirements.

[0068] The above is only illustrative and not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included in the appended claims.

Claims

1. A light-emitting device, comprising: a light-emitting component, which defines opposite first and second sides, and a plurality of edges jointly defined by the first side and the second side, the light-emitting component having a pixel substrate and a driving unit, one end of the driving unit being electrically connected to the pixel substrate; wherein the pixel substrate is light-transmissive; a bonding component, adjacent to at least one of the edges of the light-emitting component and connecting to the at least one edge of the light-emitting component or the second side of the light-emitting component; the bonding component has a first support member, the first support member having a supporting portion located on the second side of the light-emitting component, and a receiving space defined between the supporting portion of the first support member and at least one of the edges of the light-emitting component, wherein the other end of the driving unit is located in the receiving space; a support substrate, disposed on the second side of the light-emitting component, connected to the pixel substrate, and the first support member is connected to the lower surface of the support substrate located on the second side; and a module connecting member, wherein the numbers of the light-emitting component and the bonding component are each plural, and the module connecting member connects two adjacent bonding components.

2. The light-emitting device according to claim 1, wherein the number of the pixel substrates of the light-emitting component is plural, and one pixel substrate is adjacent to another pixel substrate.

3. The light-emitting device according to claim 1, wherein the light-emitting component further has a plurality of optoelectronic components, and the optoelectronic components are disposed on the pixel substrate.

4. The light-emitting device according to claim 3, wherein the optoelectronic components are disposed on one side of the pixel substrate located on the first side.

5. The light-emitting device according to claim 2, wherein the light-emitting assembly further has a plurality of optoelectronic components disposed on the pixel substrate; wherein, Part of the optoelectronic components are disposed on one side of one pixel substrate located on the first side, and part of the optoelectronic components are disposed on one side of another pixel substrate located on the second side.

6. The light-emitting device according to claim 1, wherein the pixel substrate is flexible.

7. The light-emitting device according to claim 1, wherein the driving unit includes an extension substrate and a driving circuit board, one end of the extension substrate is connected to the pixel substrate, and the other end of the extension substrate is connected to the driving circuit board.

8. The light-emitting device according to claim 1, wherein the driving unit includes a driving circuit board, and one end of the pixel substrate is bent to the second side of the light-emitting component and connected to the driving circuit board.

9. The light-emitting device according to claim 1, further comprising: at least one covering member, disposed on the first side of the light-emitting component; wherein the covering member is a light-transmissive member.

10. The light-emitting device according to claim 9, wherein the covering member is a flexible member.

11. The light-emitting device according to claim 1, wherein the supporting portion of the first support member defines a vertical surface connected to and perpendicular to the second side of the light-emitting component.

12. The light-emitting device according to claim 1, wherein the first support further has a supporting portion, the driving unit is positioned at the supporting portion, and opposite ends of the supporting portion are respectively connected to the second side of the light-emitting component and the supporting portion.

13. The light-emitting device according to claim 1, wherein the coupling component further has a second support, one end of the second support is connected to at least one of the first side or the edge of the light-emitting component, and the other end thereof is connected to an end of the first support away from the light-emitting component.

14. The light-emitting device according to claim 13, wherein the first support and the second support respectively have a first abutting portion and a second abutting portion at both ends. The first abutting portion of the first support is connected to the second side of the light-emitting component, the first abutting portion of the second support is connected to the first side of the light-emitting component, and the second abutting portion of the first support is connected to the second abutting portion of the second support.

15. The light-emitting device according to claim 13, wherein the first support and the second support are a single integrally formed member.

16. The light-emitting device according to any one of claims 1 to 12, wherein, One of the coupling components further includes a second support, one end of the second support is connected to one of the first sides of the light-emitting components, and the other end thereof is connected to one of the ends of the first support away from the light-emitting component.

17. The light-emitting device according to any one of claims 1-12, wherein in the coupling component, the number of the first supports is plural, and the light-emitting device further includes: A fixing member connecting adjacent two of the first supports.

18. The light-emitting device according to claim 13 or 14, wherein in the coupling component, the number of the second supports is plural, and the light-emitting device further includes: A fixing member connecting adjacent two of the second supports.

19. The light-emitting device according to claim 1, wherein, Further defined in the projection direction of the light-emitting device: Device area; A first effective area defined by an area of the first side of the light-emitting component not shielded by the coupling component; And A second effective area defined by an area of the second side of the light-emitting component not shielded by the coupling component; Wherein, a ratio of the first effective area to the device area is greater than or equal to 90%, and a ratio of the second effective area to the device area is greater than or equal to 70%.

20. The light-emitting device according to claim 19, wherein one of the light-emitting components defines a first pixel pitch, and a second pixel pitch is defined between adjacent two of the light-emitting components, and a ratio of the second pixel pitch to the first pixel pitch is less than or equal to 3.

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