Projection equipment and projection system

Abstract

The invention provides a projection device and a projection system, and relates to the technical field of projection, the projection device comprises a mounting seat and light-emitting assemblies, the light-emitting assemblies are mounted on the mounting seat, the light-emitting assemblies are arranged in multiple rows, and the multiple light-emitting assemblies in each row are arranged at intervals; in the multiple light-emitting assemblies located in the same row, the light-emitting assemblies with the same light-emitting color are arranged in series. In at least one row of the plurality of rows of light-emitting components, the plurality of light-emitting components comprise a first light-emitting component and a second light-emitting component with two different light-emitting colors; the first light-emitting assemblies and the second light-emitting assemblies are located in the same row, at least one first light-emitting assembly is located between the two second light-emitting assemblies, and / or at least one second light-emitting assembly is located between the two first light-emitting assemblies. According to the projection equipment and the projection system provided by the invention, the color cast problem of the projection picture can be alleviated, and the display effect of the projection picture is ensured.

Description

Technical Field

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

[0002] Projection equipment is increasingly used in people's work and life. Due to the advantages of laser projection such as wide color gamut, high brightness and small optical expansion, lasers are generally used as projection light sources in projection equipment and are gradually replacing mercury lamp lighting.

[0003] The laser has a light-emitting component for emitting laser light. The light-emitting components are divided into red light-emitting components, green light-emitting components, and blue light-emitting components according to the type of light emitted, which emit red laser light, green laser light, and blue laser light respectively. After the red, green and blue laser light is reflected by the light valve, a projected image is formed on the projection screen.

[0004] However, existing projection devices suffer from color distortion during use, which affects the display quality of the projected image. Summary of the Invention

[0005] In view of the above problems, this application provides a projection device and projection system that can reduce the color distortion problem of the projected image and ensure the display effect of the projected image.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] The first aspect of this application provides a projection device, comprising:

[0008] Mounting base;

[0009] The light-emitting components are mounted on the mounting base. The light-emitting components are arranged in multiple rows, with multiple light-emitting components in each row arranged at intervals. Among the multiple light-emitting components in the same row, light-emitting components with the same light color are connected in series.

[0010] In at least one row of a multi-row light-emitting component, multiple light-emitting components have two different light-emitting first light-emitting components and second light-emitting components with two different light-emitting colors; the first light-emitting components and second light-emitting components are located in the same row, at least one first light-emitting component is located between two second light-emitting components, and / or, at least one second light-emitting component is located between two first light-emitting components.

[0011] The beneficial effect of this application is that by interleaving the first and second light-emitting components with different light-emitting colors, the lasers emitted by the two can be mixed more evenly, thereby reducing the color deviation problem of the projected image and ensuring the display effect of the projected image.

[0012] In one possible implementation, the first and second light-emitting components located in the same row are symmetrically arranged, with their planes of symmetry coinciding; the plane of symmetry is located at the center of the row and is perpendicular to the spacing direction of the multiple light-emitting components in the row.

[0013] In one possible implementation, there are multiple first light-emitting components; there are two groups of first light-emitting components, and the second light-emitting components are located between the two groups of first light-emitting components, and / or the first light-emitting components and the second light-emitting components are arranged alternately in sequence.

[0014] In one possible implementation, the light-emitting component includes a heat sink and a light-emitting element. The heat sink includes an insulating layer and a conductive layer. The insulating layer is connected to a mounting base, and the conductive layer is connected to the side of the insulating layer away from the mounting base. A first electrode of the light-emitting element is electrically connected to the side of the conductive layer away from the insulating layer.

[0015] In two adjacent light-emitting components with the same emitting color, the conductive layer of one light-emitting component is electrically connected to the second side electrode of the light-emitting element of the other light-emitting component via a wire.

[0016] In one possible implementation, the conductive layer includes a first conductive layer and a second conductive layer that are insulated from each other, and the first side electrode of the light-emitting element is electrically connected to the first conductive layer.

[0017] When a second light-emitting component is provided between two adjacent first light-emitting components, the two adjacent first light-emitting components and the second conductive layer on the second light-emitting component are connected in series with each other through a wire.

[0018] When a first light-emitting component is provided between two adjacent second light-emitting components, the two adjacent second light-emitting components and the second conductive layer on the first light-emitting component are connected in series with each other through a wire.

[0019] In one possible implementation, multiple light-emitting components in each row are arranged at intervals along a first direction; the first conductive layer and the second conductive layer are arranged side by side along the first direction, or the first conductive layer and the second conductive layer are arranged side by side along a second direction, with the first direction and the second direction intersecting.

[0020] In one possible implementation, in each row of light-emitting components, multiple light-emitting elements are arranged close to the same side of the heat sink, and a conductive layer on the other side of the heat sink forms a wiring portion.

[0021] In one possible implementation, the projection device further includes wiring devices, with wiring devices provided on opposite sides of each row of light-emitting components along the spacing of the multiple light-emitting components in each row.

[0022] In one possible implementation, the light-emitting components are arranged in two rows. In the first row, a number of light-emitting components are used to emit red laser light. In the second row, a number of light-emitting components are used to emit green laser light, and another number of light-emitting components are used to emit blue laser light.

[0023] A second aspect of this application provides a projection device, comprising:

[0024] Mounting base;

[0025] The light-emitting components are used to be mounted on the mounting base. The light-emitting components are configured to have multiple rows, and multiple light-emitting components in each row are configured to be arranged at intervals. Among the multiple light-emitting components in the same row, at least a portion of the light-emitting components are configured to have the same light emission color, and multiple light-emitting components with the same light emission color are configured to be connected in series.

[0026] In at least one row of a multi-row light-emitting component, a plurality of light-emitting components are configured as a first light-emitting component and a second light-emitting component having two different light-emitting colors; the first light-emitting components and the second light-emitting components are located in the same row, at least one first light-emitting component is located between two second light-emitting components, and / or, at least one second light-emitting component is located between two first light-emitting components.

[0027] A third aspect of this application provides a projection system, including a projection screen and a projection device according to any of the above implementations, wherein the projection device is used to project a projected image onto the projection screen.

[0028] Therefore, in the projection device provided by this application, by interleaving the first and second light-emitting components with different emission colors, the lasers emitted by the two components can be mixed more uniformly, thereby reducing color distortion in the projected image and ensuring the display effect of the projected image. Furthermore, when the first and second light-emitting components are symmetrically arranged, the lasers emitted by the first and second light-emitting components can be mixed evenly. Additionally, when the conductive layer includes an insulating first conductive layer and a second conductive layer, the second conductive layer can act as a transition platform, reducing the length of the wires and preventing them from easily melting due to excessive wire length, thus improving the reliability of the projection device.

[0029] The structure of this application, as well as its other inventive objectives and beneficial effects, will become more apparent and understandable through a description of the specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A 3D diagram of a laser in a projection device in the prior art;

[0032] Figure 2 for Figure 1 View after some parts have been removed;

[0033] Figure 3 This is a view showing the arrangement of light-emitting components on a mounting base in the prior art;

[0034] Figure 4 This is a first arrangement view of the light-emitting components on the mounting base provided in an embodiment of this application;

[0035] Figure 5 for Figure 4 A schematic diagram showing the arrangement of two adjacent light-emitting components;

[0036] Figure 6 This is a first view of the conductive layer in the light-emitting component provided in an embodiment of this application;

[0037] Figure 7 This is a second view of the conductive layer in the light-emitting component provided in an embodiment of this application;

[0038] Figure 8 This is a positional view between the light-emitting component and the reflective prism provided in an embodiment of this application;

[0039] Figure 9 for Figure 4 An arrangement view of the first and second light-emitting components in the image;

[0040] Figure 10 To and Figure 9 Another arrangement view of the corresponding first and second light-emitting components;

[0041] Figure 11 This is a second arrangement view of the light-emitting components on the mounting base provided in an embodiment of this application;

[0042] Figure 12 This is a schematic diagram of the projection device provided in the embodiments of this application projecting onto a projection screen.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10 - Projection equipment; 10A - Laser;

[0045] 100 - Mounting base; 200 - Light-emitting component;

[0046] 200A - First light-emitting component; 200B - Second light-emitting component;

[0047] 200C - Third light-emitting component; 210 - Heat sink;

[0048] 211 - Insulating layer; 212 - Conductive layer;

[0049] 212A - First conductive layer; 212B - Second conductive layer;

[0050] 213 - Wiring section; 220 - Light-emitting element;

[0051] 221 - First side electrode; 222 - Second side electrode;

[0052] 223 - Emissive layer; 230 - First direction;

[0053] 240 - Second direction; 250 - First dimension;

[0054] 260 - Second dimension; 270 - Maximum spacing;

[0055] 300 - Wiring connector; 400 - Collimating lens;

[0056] 500 - Reflective prism; 510 - Reflective surface;

[0057] 600 - Outer casing; 700 - Laser;

[0058] 800 - Wire; 910 - Blue LED component;

[0059] 920 - Green light-emitting component; 930 - Red light-emitting component;

[0060] 20 - Projection screen. Detailed Implementation

[0061] Figures 1 to 3The image shows a view of a laser 10A. In the existing laser 10A, a light-emitting component 200 and a reflecting prism 500 are mounted on a mounting base 100. The light-emitting component 200 includes a heat sink 210 and a light-emitting element 220, which is a light-emitting chip. The laser emitted by the light-emitting element 220 is reflected by the reflective surface on the reflecting prism 500 and then emitted through a collimating lens 400 to the outside of the laser 10A. Subsequently, the laser is guided by other optical components in the projection device and projected onto a projection screen outside the projection device, forming a projected image on the screen. The light-emitting components 200 are classified according to the type of light emitted: a blue light-emitting component 910, a green light-emitting component 920, and a red light-emitting component 930, emitting blue laser, green laser, and red laser respectively. Figure 3 As shown in the figure, the arrangement of the light-emitting components 200 in the prior art on the mounting base 100 is illustrated. Five red light-emitting components 930 are arranged in a row, and three green light-emitting components 920 and two blue light-emitting components 910 are arranged in a row. The three green light-emitting components 920 and the two blue light-emitting components 910 are arranged sequentially.

[0062] However, the arrangement of green and blue light-emitting components in the existing technology causes the green laser emitted by the green light-emitting component and the blue laser emitted by the blue light-emitting component to be biased to one side, resulting in uneven mixing of blue and green light. This leads to color distortion in the projected image and affects the display effect of the projected image.

[0063] To address the aforementioned problems, this application provides a projection device and a projection system. The projection system includes a projection device, which comprises a mounting base and light-emitting components. The light-emitting components are mounted on the mounting base and are arranged in multiple rows, with multiple light-emitting components in each row spaced apart. In the same row, light-emitting components of the same color are connected in series. Furthermore, in at least one row of the multiple light-emitting components, multiple light-emitting components have two different light-emitting components: a first light-emitting component and a second light-emitting component. In the same row, at least one first light-emitting component is located between two second light-emitting components, and / or at least one second light-emitting component is located between two first light-emitting components. Therefore, by interleaving first and second light-emitting components of different colors, the laser light emitted by them can be mixed more uniformly, thereby reducing color distortion in the projected image and ensuring the display effect of the projected image.

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0065] The technical solution of this application and how it solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0066] The following combination Figures 4 to 12 The structure of the projection device provided in the embodiments of this application will be described in detail.

[0067] like Figure 4 and Figure 11 As shown, the projection device 10 provided in this application includes a mounting base 100 and light-emitting components 200. The light-emitting components 200 are mounted on the mounting base 100, and the light-emitting components 200 are arranged in multiple rows. Multiple light-emitting components 200 in each row are arranged at intervals along a first direction 230. It should be noted that the mounting base 100 can be the housing of the laser 10A, and the housing has a cavity inside, in which the light-emitting components 200 are located; after the light-emitting components 200 are installed in the cavity, the cavity can be sealed.

[0068] In some embodiments, such as Figure 4 and Figure 8 As shown, the light-emitting component 200 includes a heat sink 210 and a light-emitting element 220. The heat sink 210 is mounted on the mounting base 100, and the light-emitting element 220 is mounted on the side of the heat sink 210 away from the mounting base 100. The light-emitting element 220 can be a light-emitting chip. The heat sink 210 can be electrically connected to the light-emitting element 220, and the heat sink 210 can also provide a connection area for the electrical connection between the wire 800 and the light-emitting component 200, facilitating the electrical connection of different light-emitting components 200 through the wire 800. At the same time, the heat sink 210 can also play a role in heat dissipation. The heat generated by the light-emitting element 220 during operation can be transferred to the mounting base 100 through the heat sink 210, thereby accelerating the heat dissipation and cooling of the light-emitting element 220.

[0069] Among them, such as Figure 5As shown, the heat sink 210 has a first dimension 250 along the first direction 230 and a second dimension 260 along the second direction 240; the first direction 230 and the second direction 240 are intersecting each other; the first dimension 250 is smaller than the second dimension 260 and larger than the maximum spacing 270 between two adjacent light-emitting components 200 along the first direction 230. Because the first dimension 250 is smaller than the second dimension 260, the heat sink 210 can be elongated as a whole; because the first dimension 250 of the heat sink 210 is larger than the maximum spacing 270 between two light-emitting components 200 along the first direction 230, the two adjacent light-emitting components 200 can be arranged closely together.

[0070] Specifically, such as Figure 4 As shown, the mounting base 100 has a mounting surface 110, and the light-emitting component 200 is mounted on the mounting surface 110. When multiple light-emitting components 200 are arranged closely on the mounting base 100, the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 is in the range of 0.3-0.7. The effective patch area refers to the area on the mounting base 100 that can be used to mount the light-emitting component 200.

[0071] Preferably, the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 can be in the range of 0.4-0.6. When the ratio is within this range, it is convenient to install the light-emitting component 200 on the mounting base 100 while ensuring the compact arrangement of the light-emitting component 200. It should be noted that if the ratio is too large, it is not convenient to install the light-emitting component 200 on the mounting base 100, and the heat dissipation performance of the laser is difficult to guarantee. If the ratio is too small, it is not conducive to the compact arrangement of the light-emitting component 200, and the compactness of the laser is difficult to guarantee.

[0072] This application improves the shape and arrangement of the heat sink 210, making the arrangement of the light-emitting components 200 on the mounting base 100 more compact, which facilitates the miniaturization and integration of the laser 10A. Figure 4 The laser 10A provided in this application, compared to Figure 3 Compared with the existing laser 10A, the laser 10A provided in this application has a smaller size while setting the same number of light-emitting components 200; Figure 11 The laser 10A provided in this application, compared to Figure 3 Compared with the existing laser 10A, the laser 10A provided in this application can have more light-emitting components 200 in the same size, and the light-emitting power of the laser 10A can be improved.

[0073] It should be noted that the first direction 230 can be the width direction of the mounting base 100, i.e., the direction of the Y-axis in the attached figure; the second direction 240 can be the length direction of the mounting base 100, i.e., the direction of the X-axis in the attached figure. Since the mounting base 100 in the laser 10A has a large space along its length, this application makes the heat sink 210 elongated along the second direction 240, which can improve the utilization rate of the mounting base 100. Specifically, the second direction 240 and the first direction 230 can be arranged perpendicular to each other, which facilitates the installation and positioning of the light-emitting component 200. In addition, there can be only one heat sink 210 in each row of light-emitting components 200, while there are multiple light-emitting components 220, which are arranged at intervals along the first direction 230 on the heat sink 210. A single heat sink 210 is easy to install, and at the same time, it is also easy for the light-emitting components 220 to be installed on the heat sink 210, making the structure of the light-emitting component 200 and the laser 10A more compact.

[0074] Specifically, such as Figure 4 As shown, compared to Figure 3 The existing laser 10A, with five light-emitting components 200 arranged in each row, has a smaller size than the laser 10A provided in this application; Figure 11 As shown, compared to Figure 3 Compared with the existing laser 10A, the laser 10A provided in this application can be equipped with ten light-emitting components 200 with the same laser 10A size, which is twice the number of light-emitting components 200 of the existing laser 10A.

[0075] Specifically, such as Figure 5 As shown, the second dimension 260 is L, the first dimension 250 is A, and the maximum spacing 270 between two adjacent light-emitting components 200 along the first direction 230 is B. The L / A ratio can range from 1 to 3.5, and the A / B ratio can range from 2 to 10; thus, when both ratios are within this range, it is possible to facilitate the installation of the light-emitting components 200 while ensuring their compact arrangement. Preferably, the L / A ratio can range from 1 to 3, and the A / B ratio can range from 4 to 8. When both ratios are within this range, it is possible to further ensure the ease of installation and compact arrangement of the light-emitting components 200 on the mounting base 100. It should be noted that if the L / A ratio is too large, the heat sink 210 will be too thin and long, making it difficult to install the light-emitting component 220 on the heat sink 210; if the L / A ratio is too small, it will be difficult to arrange the light-emitting components 200 tightly; if the A / B ratio is too large, it will be difficult to install the light-emitting components 200 on the mounting base 100; if the A / B ratio is too small, it will be difficult to arrange the light-emitting components 200 tightly.

[0076] In some embodiments, the L / A ratio can range from 1.5 to 2, and the A / B ratio can range from 4 to 8; while the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 ranges from 0.3 to 0.5.

[0077] In some embodiments, the L / A ratio can range from 2 to 2.5, and the A / B ratio can range from 4 to 8; while the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 ranges from 0.4 to 0.6.

[0078] In some embodiments, the L / A ratio can range from 2.5 to 3, and the A / B ratio can range from 4 to 8; while the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 ranges from 0.5 to 0.7.

[0079] In some embodiments, the L / A ratio can range from 2 to 2.5, and the A / B ratio can range from 3 to 5; while the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 ranges from 0.4 to 0.6.

[0080] In some embodiments, the L / A ratio can range from 2 to 2.5, and the A / B ratio can range from 5 to 7; while the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 ranges from 0.4 to 0.6.

[0081] In some embodiments, the L / A ratio can range from 2 to 2.5, and the A / B ratio can range from 7 to 9; while the ratio of the projected area of ​​the light-emitting component 200 on the mounting surface 110 to the effective patch area on the mounting surface 110 ranges from 0.4 to 0.6.

[0082] In the above embodiments, by adjusting the range of three different ratios, the ease of installation and compact arrangement of the light-emitting component 200 on the mounting base 100 can be guaranteed; at the same time, it can also avoid the light-emitting component 200 being arranged too compactly, which would affect the heat dissipation performance of the laser.

[0083] In some embodiments, among the plurality of light-emitting components 200 located in the same row, at least a portion of the light-emitting components 200 have the same emission color, and the light-emitting components 200 with the same emission color are arranged in series, thereby facilitating the control of the light-emitting components 200 with the same emission color. In addition, in at least one row of the multiple rows of light-emitting components 200, the plurality of light-emitting components 200 have two first light-emitting components 200A and second light-emitting components 200B with two different emission colors; at least one of the first light-emitting components 200A and second light-emitting components 200B located in the same row is provided in multiples; at least one first light-emitting component 200A is located between two second light-emitting components 200B, and / or at least one second light-emitting component 200B is located between two first light-emitting components 200A, that is, the first light-emitting components 200A and second light-emitting components 200B are interleaved. It should be noted that the first light-emitting component 200A can be inserted between two second light-emitting components 200B, or the second light-emitting component 200B can be inserted between two first light-emitting components 200A, or multiple first light-emitting components 200A and multiple second light-emitting components 200B can be interspersed with each other.

[0084] Therefore, in the projection device 10 provided in this application, by interleaving the first light-emitting component 200A and the second light-emitting component 200B with different light-emitting colors, the lasers emitted by the two can be mixed more evenly, thereby reducing the color deviation problem of the projected image and ensuring the display effect of the projected image.

[0085] Specifically, such as Figure 4 and Figure 11 As shown, the light-emitting components 200 are arranged in two rows. One row contains two different light-emitting components 200A and 200B, each emitting a different color: first light-emitting component 200A emits blue laser light, and second light-emitting component 200B emits green laser light. The other row contains only third light-emitting components 200C, which emit red laser light, a color different from that of the first and second light-emitting components 200A and 200B. Specifically, the overall ratio of the first light-emitting components 200A, second light-emitting components 200B, and third light-emitting components 200C can be 2:3:5. Figure 4 As shown, the total number of the first light-emitting component 200A, the second light-emitting component 200B, and the third light-emitting component 200C are 2, 3, and 5, respectively; or, as shown... Figure 11As shown, the total number of the first light-emitting component 200A, the second light-emitting component 200B, and the third light-emitting component 200C are 4, 5, and 10, respectively. It should be noted that, in addition to emitting blue, green, and red lasers, the first light-emitting component 200A, the second light-emitting component 200B, and the third light-emitting component 200C can also emit lasers of three other colors.

[0086] For example, such as Figure 9 and Figure 10 As shown, the first light-emitting components 200A and the second light-emitting components 200B in the same row are symmetrically arranged, and their planes of symmetry can coincide. The plane of symmetry is located at the center of the row and is perpendicular to the spacing direction of the multiple light-emitting components 200 in the row, i.e., the first direction 230. Therefore, the entire row containing the first light-emitting components 200A and the second light-emitting components 200B can be symmetrically arranged, thereby further mixing the laser emitted by the first light-emitting components 200A and the second light-emitting components 200B more uniformly and further reducing the color distortion problem.

[0087] For example, multiple first light-emitting components 200A may be provided. In one specific embodiment, such as Figure 9 As shown, two sets of first light-emitting components 200A can be provided, and the second light-emitting component 200B can be located between the two sets of first light-emitting components 200A, thereby facilitating a more uniform mixing of the laser emitted by the first light-emitting components 200A and the second light-emitting components 200B. In another specific embodiment, as... Figure 10 As shown, the first light-emitting component 200A and the second light-emitting component 200B can be arranged alternately in sequence; at this time, the more the first light-emitting component 200A and the second light-emitting component 200B are, the more uniformly the two different colors of laser light can be mixed.

[0088] Based on the above embodiments, the structure of the light-emitting component 200 will be further described below:

[0089] like Figures 6 to 8As shown, the heat sink 210 in the light-emitting component 200 may include an insulating layer 211 and a conductive layer 212. The insulating layer 211 is connected to the mounting base 100, and the conductive layer 212 is connected to the side of the insulating layer 211 away from the mounting base 100. The first electrode 221 of the light-emitting component 220 is electrically connected to the conductive layer 212. Both the insulating layer 211 and the conductive layer 212 can conduct heat, and the heat of the light-emitting component 220 can be transferred to the mounting base 100 in sequence through the conductive layer 212 and the insulating layer 211. Compared with the first electrode 221 of the light-emitting component 220, the wire 800 is easier to connect to the conductive layer 212. Therefore, after the conductive layer 212 is connected to the first electrode 221, it is convenient for the light-emitting component 220 to form an electrical connection with other electronic components through the conductive layer 212 and the wire 800. Furthermore, among two adjacent light-emitting components 200 with the same emission color, the conductive layer 212 of one light-emitting component 200 can be electrically connected to the second side electrode 222 on the light-emitting element 220 of the other light-emitting component 200 via a wire 800. Specifically, the light-emitting element 220 may include a first side electrode 221, a light-emitting layer 223, and a second side electrode 222 stacked sequentially; after the first side electrode 221 and the second side electrode 222 are energized, the light-emitting layer 223 can be excited to emit laser 700. After being reflected by the reflective surface 510 on the reflective prism 500, the laser 700 can be emitted to the outside of the laser 10A through the collimating lens 400.

[0090] Specifically, the insulating layer 211 can be made of insulating materials such as AlN or SiC. These insulating materials have the advantage of high thermal conductivity, which facilitates the transfer of heat from the light-emitting element 220 to the mounting base 100. In one specific embodiment, along the direction of the insulating layer 211 toward the first side electrode 221, the conductive layer 212 may include four Ti layers, Pt layers, Au layers, and solder layers stacked sequentially. The solder layer can be an AuSn solder layer. Using a high-precision eutectic bonding machine, the light-emitting element 220 can be connected to the solder layer. The material of the AuSn solder layer can be Au75Sn25 or Au80Sn20, and the thickness of the solder layer ranges from 1 to 10 μm. The AuSn solder layer has the advantage of high thermal conductivity. In addition, the Au layer serves to connect the solder layer, the Pt layer serves to connect the Ti layer and the Au layer, and the Ti layer serves to connect the insulating layer 211 and the conductive layer 212, while also possessing good thermal conductivity. The thickness of the Ti / Pt / Au three layers depends on the specific application, but is generally less than 1 μm, thereby transferring the heat from the light-emitting element 220 to the insulating layer 211. In another specific embodiment, along the direction from the insulating layer 211 toward the first side electrode 221, the conductive layer 212 may include four Cu layers, Ni layers, Au layers, and solder layers stacked sequentially.

[0091] It should be noted that in the prior art, the first light-emitting component 200A and the second light-emitting component 200B located in the same row need to be connected by separate wiring. This necessitates adding a transition platform to the housing of the laser 10A, i.e., to the mounting base 100. This increases the housing volume, which is detrimental to the miniaturization and versatility of the laser. To avoid the transition platform affecting the housing volume, the embodiments of this application provide the following solution:

[0092] like Figures 4 to 7 As shown, the conductive layer 212 may include a first conductive layer 212A and a second conductive layer 212B that are insulated from each other. The first side electrode 221 of the light-emitting element 220 is electrically connected to the first conductive layer 212A. Specifically, the first side electrode 221 and the first conductive layer 212A can be electrically connected through direct contact, or they can be indirectly electrically connected through other metal layers. Specifically, the first conductive layer 212A and the second conductive layer 212B can be spaced apart to ensure insulation between them; or, an insulating material can be filled between the first conductive layer 212A and the second conductive layer 212B to ensure insulation between them.

[0093] like Figure 9 As shown, when a second light-emitting component 200B is provided between two adjacent first light-emitting components 200A, the two adjacent first light-emitting components 200A and the second conductive layer 212B on the second light-emitting component 200B are connected in series through wires 800; thus, the second conductive layer 212B on the second light-emitting component 200B located between two adjacent first light-emitting components 200A can act as a transition platform, facilitating the formation of a series structure between multiple first light-emitting components 200A.

[0094] like Figure 10 As shown, when a first light-emitting component 200A is provided between two adjacent second light-emitting components 200B, the two adjacent second light-emitting components 200B and the second conductive layer 212B on the first light-emitting component 200A are connected in series through wires 800; thus, the second conductive layer 212B on the first light-emitting component 200A located between two adjacent second light-emitting components 200B can also serve as a transition platform, facilitating the formation of a series structure between multiple second light-emitting components 200B.

[0095] Therefore, the second conductive layer 212B on each light-emitting component 200 can act as a transition platform, facilitating series connection between multiple first light-emitting components 200A and between multiple second light-emitting components 200B; it should be noted that, as Figure 9 and Figure 10 As shown, when the second conductive layer 212B acts as a transition platform, compared to Figure 3 Compared with the existing wiring method of the wire 800, the wiring length of the wire 800 in this application can be reduced, avoiding the easy melting of the wire 800 due to excessive wiring length, and improving the reliability of the projection device 10; in addition, after the second conductive layer 212B acts as a transition platform, the volume of the tube shell will not increase, which is conducive to the miniaturization and versatility of the laser.

[0096] In one specific embodiment, such as Figure 6 As shown, the first conductive layer 212A and the second conductive layer 212B can be arranged side by side along the first direction 230; this arrangement facilitates increasing the length of the second conductive layer 212B along the second direction 240, thereby facilitating the connection of the wire 800 to the second conductive layer 212B. In another specific embodiment, as... Figure 7 As shown, the first conductive layer 212A and the second conductive layer 212B can be arranged side by side along the second direction 240; this arrangement facilitates increasing the width of the first conductive layer 212A along the first direction 230, thereby facilitating the connection of the light-emitting element 220 on the first conductive layer 212A.

[0097] For example, such as Figure 4 As shown, in each row of light-emitting components 200, the light-emitting elements 220 can be arranged along the second direction 240 close to the same side of the heat sink 210, and the conductive layer 212 on the other side of the heat sink 210 forms a wiring portion 213. When all the light-emitting elements 220 are arranged close to the same side of the heat sink 210, the area of ​​the wiring portion 213 can be increased; the larger the area of ​​the wiring portion 213, the easier it is to connect the wire 800 to the conductive layer 212. Specifically, as... Figure 4 As shown, among two adjacent light-emitting components 200 with the same light emission color, the wiring portion 213 of one light-emitting component 200 can be electrically connected to the second side electrode 222 of the light-emitting element 220 of the other light-emitting component 200 via a wire 800.

[0098] In one specific embodiment, the projection device 10 may further include wiring connectors 300, with wiring connectors 300 provided on opposite sides of each row of light-emitting components 200 along the spacing arrangement direction of the plurality of light-emitting components 200 in each row. The presence of the wiring connectors 300 facilitates the connection between the light-emitting components 200 and external components of the laser 10A; such as... Figure 4As shown, the light-emitting components 200 are arranged in two rows. The first row of light-emitting components 200 includes a first light-emitting component 200A and a second light-emitting component 200B with two different light-emitting colors, while the second row of light-emitting components 200 consists entirely of a third light-emitting component 200C with the same light-emitting color. Two pairs of connectors 300 are provided on both sides of the first row of light-emitting components 200. One pair of connectors 300 is connected in series with the first light-emitting component 200A, and the other pair of connectors 300 is connected in series with the second light-emitting component 200B. Similarly, a pair of connectors 300 is provided on both sides of the second row of light-emitting components 200, and this pair of connectors 300 is connected in series with the third light-emitting component 200C.

[0099] It should be noted that when the first light-emitting component 200A emits blue laser, the second light-emitting component 200B emits green laser, and the third light-emitting component 200C emits red laser, the third light-emitting component 200C, which emits red laser, is larger than the first and second light-emitting components 200A and 200B. In this case, by changing the size of the heat sink 210 on the third light-emitting component 200C, the heat sink 210 is made elongated, facilitating a compact arrangement of multiple third light-emitting components 200C located in the same row. Furthermore, in each row of light-emitting components 200, the light-emitting elements 220 are positioned along the second direction 240 on the same side near the heat sink 210, facilitating the formation of a wiring portion 213. The presence of the wiring portion 213 facilitates the routing of the wires 800 and the electrical connection between the wires 800 and the light-emitting components 200. Therefore, when multiple light-emitting components 200 are compactly arranged in the same row, electrical connections between each light-emitting component 200 are easily formed through the wires 800. It should be emphasized that if the heat sink 210 does not have a wiring part 213, it will be inconvenient to route the wires 800 and to form an electrical connection between the various light-emitting components 200 through the wires 800.

[0100] In addition, this application also provides a projection device 10, including a mounting base 100 and a light-emitting component 200. The light-emitting component 200 is used to be mounted on the mounting base 100. The light-emitting component 200 is configured to have multiple rows, and multiple light-emitting components 200 in each row are arranged at intervals along a first direction 230. The light-emitting component 200 includes a heat sink 210 and a light-emitting component 220. The heat sink 210 is used to be mounted on the mounting base 100. The heat sink 210 is configured to have a first dimension 250 along the first direction 230 and a second dimension 260 along the second direction 240. The first direction 230 and the second direction 240 are configured to be intersected. The first dimension 250 is configured to be smaller than the second dimension 260 and larger than the maximum spacing 270 between two adjacent light-emitting components 200 along the first direction 230. The light-emitting component 220 is used to be mounted on the side of the heat sink 210 away from the mounting base 100. By setting the dimensions of the heat sink 210, the heat sink 210 can be made to be elongated as a whole, and at the same time, two adjacent light-emitting components 200 are arranged closely together; thus, by improving the shape and arrangement of the heat sink 210, this application can improve the miniaturization and integration of the laser 10A.

[0101] In addition, this application provides a projection device 10, including: a mounting base 100 and a light-emitting component 200. The light-emitting component 200 is used to be mounted on the mounting base 100. The light-emitting component 200 is configured to have multiple rows, and multiple light-emitting components 200 in each row are configured to be arranged at intervals. Among the multiple light-emitting components 200 located in the same row, light-emitting components 200 with the same emission color are configured to be connected in series. In at least one row of the multiple rows of light-emitting components 200, multiple light-emitting components 200 are configured to have two different emission colors: a first light-emitting component 200A and a second light-emitting component 200B. Among the first light-emitting components 200A and the second light-emitting components 200B located in the same row, at least one first light-emitting component 200A is located between two second light-emitting components 200B, and / or at least one second light-emitting component 200B is located between two first light-emitting components 200A. By interleaving the first light-emitting component 200A and the second light-emitting component 200B, which emit different colors of light, the lasers emitted by the two components can be mixed more evenly, thereby reducing the color deviation problem of the projected image and ensuring the display effect of the projected image.

[0102] Based on the above embodiments, this application also provides a projection system, including a projection screen and a projection device 10 as described in any of the above embodiments, wherein the projection device 10 is used to project a projected image onto the projection screen 20.

[0103] Specifically, such as Figure 12As shown, the projection device 10 has a housing 600, and the interior of the housing 600 has a receiving cavity. The laser 10A is located in the receiving cavity, and thus, the mounting base 100 and the light-emitting component 200 in the laser 10A are also located in the receiving cavity. Figure 12 The image also shows a scene where the projection device 10 projects onto the projection screen 20, which is located diagonally above the projection device 10. The projection screen 20 can be mounted on a flat mounting surface such as a wall to ensure its flatness. Thus, the laser 700 emitted by the light-emitting component 200 on the mounting base 100 can pass through the collimating lens 400 to the outside of the laser 10A, and ultimately pass through the lens of the projection device 10 to the projection screen 20, forming a projected image on the projection screen 20.

[0104] In the description of this application, it should be understood that the terms "comprising" and "having," and any variations thereof, are intended to cover but not exclude. The terms "center," "upper," "lower," "front," "rear," "left," "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0106] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various different variations of embodiments suitable for specific application considerations.

Claims

1. A projection device, characterized in that, include: Mounting base; The light-emitting components are mounted on the mounting base and are arranged in multiple rows, with multiple light-emitting components in each row arranged at intervals; among the multiple light-emitting components in the same row, light-emitting components with the same light-emitting color are arranged in series. In at least one row of the multiple rows of light-emitting components, the plurality of light-emitting components have two first light-emitting components and second light-emitting components with two different light-emitting colors; the first light-emitting components and the second light-emitting components located in the same row, at least one first light-emitting component is located between two second light-emitting components, and / or, at least one second light-emitting component is located between two first light-emitting components.

2. The projection device according to claim 1, characterized in that, The first and second light-emitting components, located in the same row, are symmetrically arranged, and their planes of symmetry coincide. The plane of symmetry is located at the center of the row and is perpendicular to the spacing direction of the plurality of light-emitting components in the row.

3. The projection device according to claim 1, characterized in that, The first light-emitting component has multiple components; The first light-emitting component is provided in two groups, and the second light-emitting component is located between the two groups of the first light-emitting components, and / or the first light-emitting component and the second light-emitting component are arranged alternately in sequence.

4. The projection device according to any one of claims 1-3, characterized in that, The light-emitting component includes a heat sink and a light-emitting element. The heat sink includes an insulating layer and a conductive layer. The insulating layer is connected to the mounting base, and the conductive layer is connected to the side of the insulating layer away from the mounting base. The first electrode of the light-emitting element is electrically connected to the side of the conductive layer away from the insulating layer. In two adjacent light-emitting components with the same emitting color, the conductive layer of one of the light-emitting components is electrically connected to the second side electrode of the light-emitting element of the other light-emitting component via a wire.

5. The projection device according to claim 4, characterized in that, The conductive layer includes a first conductive layer and a second conductive layer that are insulated from each other, and the first side electrode of the light-emitting element is electrically connected to the first conductive layer. When a second light-emitting component is provided between two adjacent first light-emitting components, the two adjacent first light-emitting components and the second conductive layer on the second light-emitting component are connected in series with each other through a wire. When a first light-emitting component is provided between two adjacent second light-emitting components, the two adjacent second light-emitting components and the second conductive layer on the first light-emitting component are connected in series with each other through a wire.

6. The projection device according to claim 5, characterized in that, The plurality of light-emitting components in each row are arranged at intervals along a first direction; The first conductive layer and the second conductive layer are arranged side by side along a first direction, or the first conductive layer and the second conductive layer are arranged side by side along a second direction, with the first direction and the second direction intersecting.

7. The projection device according to claim 4, characterized in that, In each row of light-emitting components, multiple light-emitting elements are disposed on the same side close to the heat sink, and the conductive layer located on the other side of the heat sink forms a wiring portion.

8. The projection device according to any one of claims 1-3, characterized in that, It also includes wiring components, and the wiring components are provided on both sides of each row of light-emitting components along the spacing arrangement direction of the plurality of light-emitting components in each row; And / or, the light-emitting components are provided in two rows, with a plurality of light-emitting components in the first row used to emit red laser light; and a plurality of light-emitting components in the second row used to emit green laser light and a plurality of light-emitting components used to emit blue laser light.

9. A projection device, characterized in that, include: Mounting base; A light-emitting component is provided for mounting on the mounting base. The light-emitting component is configured to have multiple rows, and multiple light-emitting components in each row are arranged at intervals. Among the multiple light-emitting components in the same row, at least a portion of the light-emitting components are configured to have the same light-emitting color, and multiple light-emitting components with the same light-emitting color are configured to be connected in series. In at least one row of the multiple rows of light-emitting components, the plurality of light-emitting components are configured as a first light-emitting component and a second light-emitting component having two different light-emitting colors; the first light-emitting components and the second light-emitting components located in the same row, at least one first light-emitting component is located between two second light-emitting components, and / or, at least one second light-emitting component is located between two first light-emitting components.

10. A projection system, characterized in that, It includes a projection screen and a projection device as described in any one of claims 1-9, wherein the projection device is used to project a projected image onto the projection screen.

Images