Light-emitting module, lamp panel and display equipment thereof

Abstract

The utility model relates to a light-emitting module, a lamp panel and a display device thereof. The light-emitting module comprises a first color light-emitting chip, a second color light-emitting chip and a third color light-emitting chip. The second color light-emitting chip and the third color light-emitting chip are arranged on the circumference with the center of a preset area as the circle center, and the preset area is located in an area formed by surrounding the circumference; the first color light-emitting chip is arranged in the preset area; and at least part of the second color light-emitting chips and the third color light-emitting chips in the second color light-emitting chips and the third color light-emitting chips which are arranged on the circumference are alternately arranged. The arrangement mode of the light-emitting chips of the three colors can be improved, so that the problem of color separation is solved, and the light-emitting effect of color backlight is improved.

Description

Technical Field

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

[0002] Colored backlights typically achieve high brightness and high color saturation by combining three types of light-emitting chips: red, green, and blue. Each chip can independently adjust its brightness, thus enabling rich color display and subtle brightness variations.

[0003] Currently, the industry standard for color backlighting involves directly soldering the R, G, and B chips onto a printed circuit board (PCB). However, the poor arrangement of these three color-emitting chips can easily lead to color separation issues, potentially resulting in the inability to display white light.

[0004] Improving the arrangement of these three color light-emitting chips to solve the color separation problem and enhance the luminous effect of the color backlight remains an urgent issue to be addressed. Utility Model Content

[0005] This application provides a light-emitting module, a light panel, and a display device thereof to solve the problem of color separation in color backlight in related technologies and improve the light-emitting effect.

[0006] In a first aspect, some embodiments provide a light-emitting module, including: a first color light-emitting chip, a second color light-emitting chip, and a third color light-emitting chip;

[0007] The second color light-emitting chip and the third color light-emitting chip are arranged on a circumference with the center of a preset area as the center, and the preset area is located within the area formed by the circumference of the preset area; the first color light-emitting chip is arranged within the preset area;

[0008] At least some of the second-color light-emitting chips and third-color light-emitting chips arranged on the circumference are alternately arranged.

[0009] In the above embodiments, the relative distance between any two colors of the three-color light-emitting chips is within a certain range, solving the color separation problem caused by two colors of light-emitting chips being separated by another color of light-emitting chip and the two colors of light-emitting chips being far apart in related technologies. Furthermore, the overlapping area of ​​the light-emitting region after the first, second, and third color light-emitting chips emit light is larger. The overlapping area displays white light; the larger the overlapping area, the better the white light display effect. Therefore, compared with the light-emitting modules in related technologies, the light-emitting module provided in this embodiment can solve the color separation problem, better display white light, and improve the light emission effect of the colored backlight.

[0010] In one embodiment, the outer contour of the shape formed by connecting adjacent second-color light-emitting chips and third-color light-emitting chips is a regular polygon; and the second-color light-emitting chips and third-color light-emitting chips are set based on the vertices of the regular polygon.

[0011] In one embodiment, the outer contour of the shape formed by connecting light-emitting chips of the same color is a regular polygon.

[0012] In one embodiment, the area enclosed by the outer contour of the shape formed by the connecting lines of the second color light-emitting chips is the first region; the area enclosed by the outer contour of the shape formed by the connecting lines of the third color light-emitting chips is the second region; and the preset region is the intersection of the first region and the second region.

[0013] In one embodiment, the number of the first color light-emitting chip is 1, and the number of the second color light-emitting chip and the third color light-emitting chip are each not less than 2; or,

[0014] The number of the first color light-emitting chip, the second color light-emitting chip, and the third color light-emitting chip is 3 each.

[0015] In one embodiment, the first color light-emitting chip is a red light-emitting chip, the second color light-emitting chip and the third color light-emitting chip are a green light-emitting chip and a blue light-emitting chip, respectively, the number of red light-emitting chips is 4, and the number of green light-emitting chips and blue light-emitting chips is 3 each.

[0016] In one embodiment, multiple light-emitting chips of the same color are connected in series with a single wire to form an electrical connection; the electrical connections corresponding to light-emitting chips of different colors do not cross.

[0017] In one embodiment, there is a spacing between at least two adjacent light-emitting chips on the circumference, which allows the input and output electrical connections corresponding to the first color light-emitting chip to pass through.

[0018] Secondly, this application provides a light panel, including LED chips;

[0019] The LED includes at least one light-emitting module as described in the first aspect.

[0020] Thirdly, this application provides a display device including at least one light-emitting module as described in the first aspect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device provided in some embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the structure of a display device provided in some embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of a display device provided in some embodiments of this application;

[0025] Figure 4 This is a schematic diagram of the structure of a display device provided in some embodiments of this application;

[0026] Figure 5 A schematic diagram of the physical structure of the backlight assembly and display panel provided in some embodiments of this application;

[0027] Figure 6 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 1 ;

[0028] Figure 7 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 2 ;

[0029] Figure 8 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 3 ;

[0030] Figure 9 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 4 ;

[0031] Figure 10 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 5 ;

[0032] Figure 11 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 6 ;

[0033] Figure 12 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 7 ;

[0034] Figure 13 This is a schematic diagram of the electrical connections in a light-emitting module provided in some embodiments of this application;

[0035] Figure 14 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 8 ;

[0036] Figure 15 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 9 ;

[0037] Figure 16(a) is a schematic diagram of the structure of the light-emitting module provided in some embodiments of this application. Figure 10 ;

[0038] Figure 16(b) is a schematic diagram of the structure of the light-emitting module provided in some embodiments of this application. Figure 10 one;

[0039] Figure 17(a) is a schematic diagram of the structure of the light-emitting module provided in some embodiments of this application. Figure 10 two;

[0040] Figure 17(b) is a schematic diagram of the structure of the light-emitting module provided in some embodiments of this application. Figure 10 three;

[0041] Figure 18 Schematic diagram of the structure of the light-emitting module provided in some embodiments of this application Figure 10 Four. Detailed Implementation

[0042] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims.

[0043] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0044] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0045] The term “connection” can include electrical connection or coupling. When one element is considered to be “connected” to another element, it can be directly connected to the other element or there may be an intervening element present.

[0046] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0047] The term "module" refers to any known or subsequently developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0048] In this application embodiment, "display device" refers to any device with screen display and data processing capabilities. For example, display devices include, but are not limited to, smart TVs, laser projection devices, monitors, electronic bulletin boards, electronic tables, mobile terminals, computers, surveillance monitors, advertising screens, wearable devices, virtual reality devices, and augmented reality devices.

[0049] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device provided in some embodiments of this application. For example... Figure 1 As shown, the user can operate the display device 200 through the control device 100 or the smart device 300.

[0050] In some embodiments, the control device 100 may be a remote control, stylus, gamepad, etc. Taking a remote control as an example, communication between the remote control and the display device 200 includes infrared protocol communication or Bluetooth protocol communication, as well as other short-range communication methods, to control the display device 200 wirelessly or via wired means. Users can input user commands through buttons on the remote control, voice input, control panel input, etc., to control the display device 200.

[0051] In some embodiments, a smart device 300 (such as a mobile terminal, tablet computer, computer, laptop computer, etc.) may also be used to control the display device 200. For example, an application running on the smart device may be used to control the display device 200.

[0052] In some embodiments, the display device 200 may receive instructions not through the aforementioned smart device or control device, but through touch or gestures.

[0053] In some embodiments, the display device 200 can also be controlled in ways other than the control device 100 and the smart device 300. For example, it can be controlled by receiving user voice commands directly through a module configured inside the display device 200 for acquiring voice commands, or it can be controlled by receiving user voice commands through a voice control device set outside the display device 200.

[0054] In some embodiments, the display device 200 also communicates with the server 400. The display device 200 may be communicatively coupled via a local area network (LAN), wireless local area network (WLAN), and other networks. The server 400 may provide various content and interactive features to the display device 200. The server 400 may be a cluster or multiple clusters, and may include one or more types of servers.

[0055] Figure 2 This is a schematic diagram of the structure of a display device 200 provided in some embodiments of this application.

[0056] In some embodiments, the display device 200 includes a display panel 210, which includes liquid crystal molecules configured to deflect based on received processed display data.

[0057] In some embodiments, the display device 200 includes a backlight assembly 220 configured to emit light based on backlight-driven data. The display panel 210 may display an image based on the backlight provided by the backlight assembly 220.

[0058] In some embodiments, the display device 200 includes a controller 230, which is configured to receive a video input signal or an image input signal, obtain backlight brightness data and display data based on the video input signal or the image input signal, and perform format conversion, timing control and other processing on the backlight brightness data and display data before outputting them.

[0059] In some embodiments, the controller 230 is configured to obtain video input signals or image input signals (hereinafter referred to as input signals) from an external input port or a network port, and perform operations such as format conversion, data processing, and image rendering on the input signals to improve the display quality of the input signals.

[0060] In some embodiments, the controller 230 may be configured to output data based on a preset protocol, such as an AM driving protocol, which is a protocol supported by the backlight assembly 220. The backlight assembly 220 may process the driving data of the preset protocol to generate the corresponding backlight.

[0061] In some embodiments, the AM driver protocol includes the Serial Peripheral Interface (SPI) protocol, which is a widely used protocol in display devices and has strong universality.

[0062] In some embodiments, the AM driving protocol includes the SPB protocol, in which an electrical signal that jumps during the data cycle corresponds to a 1 in the driving data code, and an electrical signal that does not jump during the data cycle corresponds to a 0 in the driving data code. Moreover, the level will jump once after each data cycle is completed, which has higher stability than the SPI protocol.

[0063] In some embodiments, reference is made to Figure 3 and Figure 4 The circuit structure shown includes a system-on-chip (SOC) 231 in the controller 230, which is configured to obtain video input signals or image input signals (hereinafter referred to as input signals) from an external input port or network port, and perform operations such as format conversion, data processing, and image rendering on the input signals.

[0064] In some embodiments, system-on-chip 231 is configured to generate backlight brightness data and display data based on video input signals or image input signals.

[0065] In some embodiments, reference is made to Figure 3 and Figure 4 The circuit structure shown includes a timing controller (Tcon) 232 in the controller 230, which is electrically connected to the system-on-a-chip 231 and configured to obtain intermediate display data, process the intermediate display data, and output display data in a timing sequence. The intermediate display data cannot be directly processed by the display panel 210; the display data is data that the display panel 210 can process.

[0066] In some embodiments, the timing controller 232 is electrically connected to the display panel 210 and is configured to map display data to the positions of liquid crystal molecules so that the display data obtained by the display panel is the data to be displayed.

[0067] In some embodiments, please continue to refer to Figure 3 and Figure 4 The circuit structure shown includes a controller 230 that may include a backlight controller (Bcon) 233 or a dimming controller (DCON) configured to obtain processing data associated with backlight brightness data, generate and output backlight drive data from the processing data.

[0068] In some embodiments, the backlight assembly 220 and the backlight controller 233 are electrically connected, and the backlight controller 233 is configured to map backlight driving data to the location of partitions so that the backlight driving data obtained by each partition is the data to drive it to emit light.

[0069] refer to Figure 3 The circuit structure shown includes a backlight controller 233, which is electrically connected to the system-on-a-chip 231 and configured to obtain backlight brightness data from the system-on-a-chip 231.

[0070] refer to Figure 4 The circuit structure shown has a backlight controller 233 and a timing controller 232 that are electrically connected and are configured to obtain backlight brightness data from the timing controller 232.

[0071] In some embodiments, the backlight assembly 220 includes at least one drive group 221 electrically connected to the controller 230, each drive group 221 including at least one drive chip 2210 configured to generate a drive signal based on backlight drive data.

[0072] In some embodiments, the backlight assembly 220 further includes a plurality of LEDs, at least one of which is electrically connected to form a light-emitting unit group 222. The light-emitting unit group 222 is electrically connected to a driving end of the driving chip 2210 and is configured to emit light based on a driving signal.

[0073] In some embodiments, in the light-emitting unit group 222, at least one LED bead is connected in series to form a light string. The connection process is simple, the production cost is low, and the layout is convenient.

[0074] In some embodiments, in the light-emitting unit group 222, at least one LED is connected in parallel, and the working states of each LED do not affect each other.

[0075] In some embodiments, in the light-emitting unit group 222, after at least one LED bead is connected in series to form a light string, at least one light string is connected in parallel, which facilitates the simple implementation of the balanced connection process and the stability of the light emission of the LED bead.

[0076] In some embodiments, the backlight assembly 220 has multiple LED arrays distributed in a series. The LED string is composed of LEDs connected in series from left to right or from right to left, or from top to bottom or bottom to top. It can also be composed of LEDs connected in series according to a preset order (e.g., rotation, bending, etc.) to adapt to the display order of the display panel 10 and ensure the display quality of the display device.

[0077] In some embodiments, the LEDs may be composed of MiniLED, MicroLED, WLED, RGB-LED, GB-rLED or QLED (quantum dot).

[0078] In some embodiments, the physical structure diagrams of the backlight assembly 220 and the display panel 210 are as follows: Figure 5 As shown, the display panel 210 is positioned above the backlight assembly 220, and the display panel 210 can display an image.

[0079] In some embodiments, the backlight assembly 220 includes a diaphragm 501 configured to improve the reflection efficiency of the backlight generated by the backlight assembly, adjust the light, increase the brightness and color saturation of the image output by the display, increase the light utilization rate, and enable the screen to display images normally.

[0080] In some embodiments, the backlight assembly 220 includes a diffuser 502 configured to scatter light and guide light uniformly, thereby making the brightness distribution of the entire display panel more uniform.

[0081] In some embodiments, the backlight assembly 220 includes a bracket 503 configured to support a diffuser plate 402, a diaphragm 401, etc., to maintain the optical spacing between the lamp plate 408 and the diffuser plate 402.

[0082] In some embodiments, the backlight assembly 220 includes a reflector 504 configured to reflect the backlight of the lamp panel 408 in the direction of the diffuser 402.

[0083] In some embodiments, taking a micro LED display device as an example, the backlight assembly 220 is provided with multiple lamp boards 508. After the multiple lamp boards 408 are spliced ​​together, they emit light together to provide backlight to the display panel 210. Each lamp board 508 includes multiple light-emitting areas, and each light-emitting area (also called a partition) includes multiple micro LED beads.

[0084] The lamp panel 508 is electrically connected to at least one drive group 221, which in some embodiments is disposed on the lamp panel 508.

[0085] Colored backlights typically achieve high brightness and high color saturation by combining red, green, and blue light-emitting chips. However, in some technologies, poor arrangement of these chips in colored backlights can lead to color separation issues, potentially preventing the display of white light. This reduces the overall luminous efficiency of the colored backlight.

[0086] Therefore, this application provides a light-emitting module, a light board, and a display device thereof to solve at least one of the above-mentioned technical problems. The technical concept of this application is: by changing the arrangement of the three-color light-emitting chips, the relative distance between any two colors of light-emitting chips that are randomly combined is within a certain range. In this way, the problem of color separation and inability to display white light caused by excessive relative distance between the two colors of light-emitting chips in the traditional solution is improved, thereby achieving the purpose of improving the color backlight emission effect.

[0087] The technical solutions of this application will be described in detail below with reference to 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. For ease of explanation, the controller in the following embodiments can be any of the system-on-a-chip or timing controller mentioned in the above embodiments. It is understood that the aforementioned two controllers are merely examples and are not intended to be limiting.

[0088] In some embodiments, reference is made to Figure 6 The diagram shows the structure of the light-emitting module 500. The light-emitting module 500 includes three types of light-emitting chips: a first-color light-emitting chip 510, a second-color light-emitting chip 520, and a third-color light-emitting chip 530.

[0089] Figure 6 The first color light-emitting chip 510 shown is an R light-emitting chip, the second color light-emitting chip 520 is a G light-emitting chip, and the third color light-emitting chip 530 is a B light-emitting chip. Figure 6 The structure shown does not limit this embodiment. The first color light-emitting chip 510 can be a G light-emitting chip, the second color light-emitting chip 520 can be an R light-emitting chip, and the third color light-emitting chip 530 can be a B light-emitting chip. This embodiment does not impose excessive limitations on the first color, the second color, and the third color.

[0090] For example, the light-emitting module 500 may include not only three-color light-emitting chips, but also four-color or five-color light-emitting chips; this embodiment is not limited to this. The three-color light-emitting chips may not be R, B, and G light-emitting chips; they may be other combinations of light-emitting chips capable of displaying white light. Optional light-emitting chips include, for example, yellow, purple, white, and orange light-emitting chips.

[0091] The number of each color light-emitting chip in the light-emitting module 500 can be set according to actual needs, and this embodiment does not limit it. The number of light-emitting chips of different colors can be the same or different, and this embodiment does not limit it.

[0092] In some embodiments, please refer to Figure 6 The schematic diagram of the light-emitting module 500 shown shows that the second color light-emitting chip 520 and the third color light-emitting chip 530 are arranged around the first color light-emitting chip 510. It can be understood that the first color light-emitting chip 510 is located in the area enclosed by the second color light-emitting chip 520 and the third color light-emitting chip 530.

[0093] The second color light-emitting chip 520 and the third color light-emitting chip 530 are arranged on a circumference centered on a preset region, which is located within the area formed by the circumference of the preset region. The first color light-emitting chip 510 is disposed within this preset region. The preset region can be as follows: Figure 6 The area A shown can be a circular area or a polygonal area; this embodiment does not limit this. The area and position of this preset area can be set according to actual needs; this embodiment does not limit this either.

[0094] When the light-emitting module 500 includes a first-color light-emitting chip 510, the preset area can be understood as a circular area centered on the geometric center of the first-color light-emitting chip 510. Please refer to... Figure 7 The schematic diagram of the light-emitting module 500 shown illustrates that, in the case where the light-emitting module 500 includes a first-color light-emitting chip 510, the geometric center of the first-color light-emitting chip 510 is point B. The second-color light-emitting chip 520 and the third-color light-emitting chip 530 are arranged on a circle with point B as the geometric center.

[0095] When the light-emitting module 500 includes multiple first-color light-emitting chips 510, the preset area can be understood as the area enclosed by the multiple first-color light-emitting chips 510. Please refer to... Figure 6The schematic diagram of the light-emitting module 500 shown indicates that the preset area formed by the three first-color light-emitting chips 510 is a triangular region, and the center of the preset region is point B, the geometric center of the triangular region. The second-color light-emitting chip 520 and the third-color light-emitting chip 530 are arranged on a circle with point B as the geometric center.

[0096] It should be noted that this circumference can be understood as a ring, meaning that the circumference does not necessarily have to be the exact circle corresponding to a perfect circle. For example... Figure 8 The schematic diagram of the light-emitting module 500 shown indicates that the second-color light-emitting chip 520 and the third-color light-emitting chip 530 are arranged on a non-circular circumference. Preferably, the circumference can be... Figure 6 The circumference corresponding to the perfect circle shown.

[0097] In some embodiments, at least a portion of the second-color light-emitting chips 520 and the third-color light-emitting chips 530 disposed on the circumference are alternately disposed. For example Figure 6 As shown, the portion of the second-color light-emitting chip 520 arranged on the circumference is adjacent to a third-color light-emitting chip 530. For example... Figure 7 As shown, the light-emitting chips adjacent to the second-color light-emitting chip 520 arranged on the circumference are all third-color light-emitting chips 530.

[0098] Preferably, the second-color light-emitting chip 520 and the third-color light-emitting chip 530 arranged on the circumference are alternately arranged, that is, as shown in the figure. Figure 7 As shown, the light-emitting chips adjacent to the second color light-emitting chip 520 on the circumference are all third color light-emitting chips 530, and the light-emitting chips adjacent to the third color light-emitting chip 530 on the circumference are all second color light-emitting chips 520.

[0099] The above embodiment ensures that the relative distance between any two colors of the three-color light-emitting chips is within a certain range, solving the color separation problem caused by two colors of light-emitting chips being separated by another color of light-emitting chip and the two colors of light-emitting chips being far apart in related technologies. Furthermore, it results in a larger overlapping area of ​​the light-emitting region after the first color light-emitting chip 510, the second color light-emitting chip 520, and the third color light-emitting chip 530 emit light. The overlapping area displays white light; the larger the overlapping area, the better the white light display effect. Therefore, compared to the light-emitting modules in related technologies, the light-emitting module 500 provided in this embodiment can solve the color separation problem, better display white light, and improve the light emission effect of the colored backlight.

[0100] In some embodiments, the number of light-emitting chips is negatively correlated with the driving voltage of the light-emitting chips. That is, the higher the driving voltage of the light-emitting chips, the fewer light-emitting chips are needed. Conversely, the lower the driving voltage of the light-emitting chips, the more light-emitting chips are needed in the light-emitting module 500.

[0101] If the driving voltage of the second color light-emitting chip 520 is greater than the driving voltage of the third color light-emitting chip 530, then the number of second color light-emitting chips 520 is less than the number of third color light-emitting chips 530. If the driving voltage of the first color light-emitting chip 510 is greater than the driving voltage of the second color light-emitting chip 520, then the number of first color light-emitting chips 510 must be less than the number of second color light-emitting chips 520.

[0102] Please see Figure 9 The diagram shows the structure of the light-emitting module 500. The first color light-emitting chip 510 is a red light-emitting chip, the second color light-emitting chip 520 and the third color light-emitting chip 530 are green light-emitting chips and blue light-emitting chips, respectively. The number of red light-emitting chips is 4, and the number of green light-emitting chips and blue light-emitting chips is 3 each.

[0103] It should be noted that in the light-emitting module 500, light-emitting chips of the same color are connected in series to form a link. This link, driven by a single voltage, enables the light-emitting chips on that link to emit light. The light-emitting module 500 contains three different colors of light-emitting chips, corresponding to three links. During the light-emitting process, because the driving voltages for the different colors of light-emitting chips are different, if the same voltage is used to drive all three links, some colors of light-emitting chips will emit light faster. Furthermore, over time, the brightness of these colors of light-emitting chips will increase. This results in a large difference in the brightness of the light-emitting chips in the light-emitting module 500. This embodiment, by limiting the relationship between the number of light-emitting chips and their driving voltage to a negative correlation, can minimize the problem of certain colors of light-emitting chips emitting light faster when using the same voltage to drive all three links, thereby solving the problem of large differences in the brightness of the light-emitting chips in the light-emitting module 500. For example... Figure 9 In the example shown, the link corresponding to the R light-emitting chip requires an 8V voltage to drive, while the links corresponding to the G and B light-emitting chips require a 9V voltage to drive. By using a 9V voltage to drive the three links, the time difference between the three colors of light-emitting chips entering the light-emitting area is reduced due to the increased number of R light-emitting chips, thus solving the problem of large differences in the brightness of each light-emitting chip.

[0104] In some embodiments, the outer contour of the shape formed by connecting adjacent second-color light-emitting chips 520 and third-color light-emitting chips 530 is a regular polygon, and both the second-color light-emitting chips 520 and the third-color light-emitting chips 530 are set based on vertices of the regular polygon. That is, the distance between any two adjacent light-emitting chips on this circumference is equal, and they are evenly distributed. In this way, the problem of color separation caused by excessively large distance differences is avoided.

[0105] The regular polygon can be a regular square, a regular hexagon, or a regular octagon. In the case of a regular square, the second-color light-emitting chip 520 and the third-color light-emitting chip 530 are alternately arranged to reduce color separation. The number of first-color light-emitting chips 510 within the preset area can be set according to actual needs, and this embodiment is not limited. In the case of a regular hexagon, the second-color light-emitting chips 520 and the third-color light-emitting chips 530 can be partially alternated to reduce color separation. The number of first-color light-emitting chips 510 within the preset area can be set according to actual needs, and this embodiment is not limited. In the case of a regular octagon, the second-color light-emitting chips 520 and the third-color light-emitting chips 530 can be partially alternated to reduce color separation. The number of first-color light-emitting chips 510 within the preset area can be set according to actual needs, and this embodiment is not limited.

[0106] like Figure 10 The schematic diagram shows a regular quadrilateral structure where the second-color light-emitting chip 520 and the third-color light-emitting chip 530 are alternately arranged. The two second-color light-emitting chips 520 and the two third-color light-emitting chips 530 are symmetrically distributed to reduce color separation issues. The number of first-color light-emitting chips 510 can be one, as shown in the diagram. Figure 10 In the structure shown, the first distance between the first color light-emitting chip 510 and the second color light-emitting chip 520 is equal to the second distance between the first color light-emitting chip 510 and the third color light-emitting chip. Thus, during light emission, the overlapping areas of the three colors (e.g., ...) Figure 10 The four shaded areas shown are symmetrically distributed to further enhance the luminous effect.

[0107] like Figure 11 The schematic diagram shows a hexagonal structure where the second-color light-emitting chip 520 and the third-color light-emitting chip 530 are alternately arranged. The number of first-color light-emitting chips 510 can be three, as shown in the diagram. Figure 11In the structure shown, the lines connecting the first color light-emitting chips 510 can form an equilateral triangle to present a more uniform first color. The first distance between the first color light-emitting chip 510 and its nearest second color light-emitting chip 520 can be equal to the second distance between the first color light-emitting chip 510 and its nearest third color light-emitting chip 530 to solve the color separation problem. More preferably, the third distance between the second color light-emitting chip 520 and its circumferentially adjacent third color light-emitting chip 530 can be equal to the first distance or the second distance to solve the color separation problem.

[0108] like Figure 12 The schematic diagram shows a regular octagonal structure where the second-color light-emitting chip 520 and the third-color light-emitting chip 530 are alternately arranged. The number of first-color light-emitting chips 510 can be four, as shown in the diagram. Figure 12 In the structure shown, the lines connecting the first color light-emitting chips 510 can form a regular quadrilateral to present a more uniform first color. The first distance between the first color light-emitting chip 510 and its nearest second color light-emitting chip 520 can be equal to the second distance between the first color light-emitting chip 510 and its nearest third color light-emitting chip 530 to solve the color separation problem. More preferably, the third distance between the second color light-emitting chip 520 and its circumferentially adjacent third color light-emitting chip 530 can be equal to the first distance or the second distance to solve the color separation problem.

[0109] In some embodiments, the outer contour of the shape formed by connecting light-emitting chips of the same color is a regular polygon. The outer contour of the shape formed by connecting adjacent second-color light-emitting chips 520 and third-color light-emitting chips 530 is not a regular polygon. Please refer to... Figure 13 The outer contour of the shape formed by connecting the second color light-emitting chip 520 is an equilateral triangle, the outer contour of the shape formed by connecting the third color light-emitting chip 530 is an equilateral triangle, and the outer contour of the shape formed by connecting the first color light-emitting chip 510 is a regular quadrilateral.

[0110] In some embodiments, reference may be made to Figures 10-13 In either case, the area enclosed by the outer contour of the shape formed by the connecting lines of the second color light-emitting chip 520 is designated as the first region, and the area enclosed by the outer contour of the shape formed by the connecting lines of the third color light-emitting chip 530 is designated as the second region. The preset region is the intersection of the first region and the second region. The first color light-emitting chip 510 is disposed in the preset region.

[0111] Since the first color chip is set in a preset area, and the preset area is the intersection of the first area and the second area, the first color light-emitting chip 510, the second color light-emitting chip 520 and the second color light-emitting chip 520 will not be arranged in an approximately straight line, thus avoiding the problem of color separation caused by two colors being separated by a color and the distance being too far.

[0112] In some embodiments, please refer to Figure 7 The number of the first color light-emitting chip 510 is 1, and the number of the second color light-emitting chip 520 and the third color light-emitting chip 530 is not less than 2 each.

[0113] In some embodiments, please refer to Figure 6 , Figure 8 , Figure 9 and Figure 11 In any case, the number of the first color light-emitting chip 510, the second color light-emitting chip 520 and the third color light-emitting chip 530 is 3 each.

[0114] In some embodiments, please refer to Figure 13 The diagram shows the wiring. Multiple LEDs of the same color are connected in series with a single wire to form electrical interconnect 540. Electrical interconnect 540 includes input electrical interconnect 541 and output electrical interconnect 542.

[0115] The input terminal of input line 541 can be understood as the positive input terminal, used to receive the externally transmitted driving voltage. The output terminal of input line 541 is connected to the first LED in a series connection of multiple LEDs. The input terminal of output line 542 is connected to the last LED in a series connection of multiple LEDs. The output terminal of output line 542 can be understood as the negative output terminal, used to output the driving voltage.

[0116] Figure 13 The first color shown is red. In the electrical connection 540 of the first color light-emitting chip 510, the input end of the input electrical connection 541 is marked with R+, and the output end of the output electrical connection 542 is marked with R-. Figure 13 The second color shown is green. In the electrical connection 540 of the second color light-emitting chip 520, the input end of the input electrical connection 541 is marked with G+, and the output end of the output electrical connection 542 is marked with G-. Figure 13 The third color shown is blue. In the electrical connection 540 of the third color light-emitting chip 530, the input terminal of the input electrical connection 541 is marked with B+, and the output terminal of the output electrical connection 542 is marked with B-.

[0117] In some embodiments, please refer to Figure 13The wiring diagram shown illustrates that the electrical connections 540 corresponding to different colored LED chips do not cross. In practical applications, the substrate used to mount the LED module 500 is a single-sided board, and the electrical connections 540 corresponding to different colored LED chips do not cross, which is beneficial for single-layer wiring.

[0118] In some embodiments, please refer to Figure 13 There is a spacing between at least two adjacent light-emitting chips on the circumference that allows the input electrical connection 541 and the output electrical connection 542 of the electrical connection 540 corresponding to the first color light-emitting chip 510 to pass through. The spacing between the other two adjacent light-emitting chips on the circumference can be as close as possible to reduce the area of ​​the light-emitting module 500 and save resources.

[0119] In some embodiments, please refer to Figure 14 The diagram shows the structure of the light-emitting module 500. There is one first-color light-emitting chip 510, and this first-color light-emitting chip 510 is synthesized from multiple first-color light-emitting sub-chips. In other words, when there are multiple first-color light-emitting sub-chips, these multiple first-color light-emitting sub-chips can be combined into a larger single chip, thereby reducing the number of light-emitting chips and saving resources.

[0120] In some embodiments, please refer to Figure 15 The diagram shows the structure of the light-emitting module. The first color light-emitting chip 510 is disposed on a circle centered on a preset area, which is located within the area formed by the circle. The second color light-emitting chip 520 and the third color light-emitting chip 530 are disposed within this preset area.

[0121] Due to minute variations in the manufacturing process, the color coordinates (i.e., chromaticity coordinates, typically represented by X and Y values ​​in the CIE 1931 color coordinate system) of the light-emitting chips may exhibit some dispersion. This dispersion can cause color separation issues in the X and Y directions, meaning that adjacent light-emitting chips may display noticeable color differences, forming color blocks or bands, affecting the overall visual effect of the display screen. To solve the color separation problem in the X and Y directions, two light-emitting chips of different colors are placed in the central area, with another type of color light-emitting chip on either side.

[0122] In addition, in RGB displays, the R, G, and B LEDs produce various colors through color mixing. If any two of these LEDs are too far apart, noticeable color blocks or bands may appear on the screen. Therefore, in RGB layouts, the G LED is placed on the circumference, while the B and R LEDs are placed within a pre-defined area formed by the circumference. This allows adjacent LEDs to mix more evenly to produce the desired color, optimizing the color mixing effect, eliminating visually obvious boundaries, and presenting a smoother and more uniform color transition, reducing color separation.

[0123] The first color light-emitting chip 510 in the diagram is a G light-emitting chip, the second color light-emitting chip 520 is an R light-emitting chip, and the third color light-emitting chip 530 is a B light-emitting chip. Alternatively, the first color light-emitting chip 510 could be a B light-emitting chip, the second color light-emitting chip 520 could be an R light-emitting chip, and the third color light-emitting chip 530 could be a G light-emitting chip.

[0124] In some embodiments, referring to Figure 16(a), the line connecting the center of the second color light-emitting chip 520 and the center of the third color light-emitting chip 530 is a reference line (as shown by the dotted line in the figure), and the first color light-emitting chip 510 is respectively provided on both sides of the reference line. The first color light-emitting chip 510 is preferably a G-type light-emitting chip. The vertical distance between each G-type light-emitting chip and the reference line can be equal, and the distance between each G-type light-emitting chip is within a certain range, so as to achieve a more uniform distribution of G-type light-emitting chips, which is more conducive to optimizing the color mixing effect.

[0125] In some embodiments, referring to Figure 16(b), the vertical line connecting the center of the second color light-emitting chip 520 and the center of the third color light-emitting chip 530 is a reference line (as shown by the dotted line). First color light-emitting chips 510 are respectively disposed on both sides of the reference line. The first color light-emitting chip 510 is preferably a G-type light-emitting chip. The vertical distance between each G-type light-emitting chip and the reference line is equal, and the distance between each G-type light-emitting chip is within a certain range, so as to achieve a more uniform distribution of the G-type light-emitting chips, which is more conducive to optimizing the color mixing effect.

[0126] In some embodiments, as shown in Figure 17(a), the first color light-emitting chip 510 is symmetrically arranged along the reference line. Referring to Figure 17 (where the "m" shape represents a cross-sectional view of a reflective lens), in the case of a matching lens, and specifically a reflective lens, the light-emitting chip of the middle color, being closer to the center, reflects more light and diffuses outwards. The peripheral light-emitting chips, being less central, reflect less light. Therefore, the peripheral lights need to be symmetrically distributed to ensure that the peripheral lights reflect more light symmetrically, which is more conducive to color mixing design.

[0127] In some embodiments, please refer to Figure 18 The color-emitting chip is coated with phosphor. The phosphor is used to excite different color wavelengths on the current color-emitting chip to improve the light mixing effect. The phosphor can be KSF phosphor, chemical formula K2SiF6:Mn4+, which is a manganese (IV)-doped fluoride red phosphor.

[0128] In some embodiments, the phosphor is used to excite the second-color light-emitting chip 520 to produce a third color band. The second-color light-emitting chip 520 is a B-color light-emitting chip, and the third color band is the red band. Because blue has the highest photoelectric conversion efficiency, the phosphor is preferentially used to excite blue to produce red. When considering reducing the red component, a light source with an RGB + red KSF phosphor architecture can be used. The excitation spectrum of KSF phosphor covers the 300~500nm range, especially with double absorption peaks near 355nm and 450nm, exhibiting excellent compatibility with mainstream B-color light-emitting chips and suitable for various packaging solutions, such as Mini LED backlighting. In this case, due to the addition of KSF phosphor, blue and red have a certain extension effect in light mixing, which can reduce color separation phenomena in lens applications.

[0129] In some embodiments, the number of first-color light-emitting chips 510 is two, and the number of second-color light-emitting chips 520 and third-color light-emitting chips 530 is one each. The first-color light-emitting chip 510 is preferably a G-type light-emitting chip. Using blue and red in the middle and green on both sides can greatly reduce color separation phenomena in lens applications. Furthermore, since the number of light-emitting chips is different, to solve the voltage matching problem, the voltage of the B-type light-emitting chip can be twice the voltage of the G-type light-emitting chip.

[0130] In some embodiments, when using lenses, the intermediate color light-emitting chips can be integrated into one, which is beneficial for process development and cost reduction.

[0131] In some embodiments, the outer contour of the shape formed by connecting the first color light-emitting chips 510 is a regular polygon; and the first color light-emitting chips 510 are set based on the vertices of the regular polygon. For a description of how the light-emitting chips form a regular polygon, please refer to the above-mentioned description, which will not be repeated here.

[0132] Some embodiments of this application also provide a light panel 508, which includes LED chips. The LED chips include at least one light-emitting module 500 as provided in any of the preceding embodiments. More specifically, the light-emitting module 500 can be mounted on a base plate of the LED chips.

[0133] Some embodiments of this application also provide a backlight assembly 220, which includes at least one light-emitting module 500 as provided in any of the preceding embodiments.

[0134] Some embodiments of this application also provide a display device 200, which includes the light-emitting module 500 as provided in the previous embodiment.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0136] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A light emitting module, characterized by Comprising: a first color light emitting chip, a second color light emitting chip and a third color light emitting chip; the second color light emitting chip and the third color light emitting chip are arranged on a circumference with a center of a preset region as a center, the preset region is in a region formed by the circumference; the first color light emitting chip is arranged in the preset region; at least part of the second color light emitting chip and the third color light emitting chip arranged on the circumference are alternately arranged.

2. The light emitting module of claim 1, wherein, The adjacent second color light emitting chip and the third color light emitting chip form a regular polygon after being connected in a shape; and the second color light emitting chip and the third color light emitting chip are arranged based on the vertex of the regular polygon.

3. The light emitting module of claim 1, wherein, The same color light emitting chip forms a regular polygon after being connected in a shape.

4. The light emitting module according to any one of claims 1 to 3, characterized in that, The region surrounded by the second color light emitting chip connected in a shape is a first region; the region surrounded by the third color light emitting chip connected in a shape is a second region; and the preset region is an intersection region of the first region and the second region.

5. The light emitting module of any one of claims 1 to 3, wherein, The number of the first color light emitting chip is 1, and the number of the second color light emitting chip and the third color light emitting chip is not less than 2; or The number of the first color light emitting chip, the second color light emitting chip and the third color light emitting chip is 3.

6. The light emitting module of any one of claims 1 to 3, wherein, The first color light emitting chip is a red light emitting chip, the second color light emitting chip and the third color light emitting chip are green light emitting chip and blue light emitting chip respectively, the number of the red light emitting chip is 4, and the number of the green light emitting chip and the blue light emitting chip is 3.

7. The light emitting module of any one of claims 1-3, wherein, The multiple light emitting chips of the same color are connected in a single line series mode to form an electrical connection; the electrical connections corresponding to the light emitting chips of different colors do not cross.

8. The light emitting module of claim 7, wherein, The spacing between at least two adjacent light emitting chips on the circumference is capable of allowing the input electrical connection and the output electrical connection corresponding to the first color light emitting chip to pass through.

9. A light panel characterized by The lamp bead comprises at least one light emitting module according to any one of claims 1-8. The lamp bead comprises at least one light emitting module according to any one of claims 1-8.

10. A display device, characterized by The lamp bead comprises at least one light emitting module according to any one of claims 1-8.

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