LIGHT-EMITTING CHIP, LIGHT BOARD, AND METHOD OF ASSEMBLING LIGHT-EMITTING CHIP

A light-emitting chip, a light board, and a method of assembling the light-emitting chip are disclosed. The light-emitting chip includes a first chip, a second chip, and a third chip. The second chip includes a first side and a second side. The first side includes a first protrusion. The second side includes a second protrusion. The first chip includes a first groove. The third chip includes a second groove. The first chip is disposed on the first side, and the first groove is mated with the first protrusion. The third chip is disposed on the second side, and the second groove is mated with the second protrusion. The first chip and the third chip are symmetrically arranged about a central axis of the second chip so as to be combined to form the light-emitting chip.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority and benefit of Chinese patent application number 2023108729659, titled “Light-emitting Chip, Light board, and Method of Assembling Light-emitting Chip” and filed Jul. 17, 2023 with China National Intellectual Property Administration, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

This application relates to the field of light-emitting diodes, and more particularly relates to a light-emitting chip, a light board, and a method of assembling the light-emitting chip.

BACKGROUND

The description provided in this section is intended for the mere purpose of providing background information related to the present application but doesn't necessarily constitute prior art.

With the innovation and development of LED (light-emitting diode) technology, Micro-LED (Micro Light Emitting Diode Display) display technology has become a new generation of display technology. It consists in miniaturizing and matrixing the LED structures, so that the size of a single LED chip is reduced to tens of microns or even a few microns, and each LED pixel is addressed and individually driven to emit light. Since Micro-LED chip displays have the advantages of high resolution, high brightness, long life span, wide operating temperature range, strong anti-interference ability, fast response speed, and low power consumption, Micro-LED has important application values in the fields of high-resolution display, helmet display, augmented reality, high-speed visible light communication, micro-projector, optogenetics, and wearable electronics.

A full-color gamut LED display is assembled from Micro-LED chips in three primary colors of red, green, and blue (RGB) on a substrate in a certain arrangement. In a possible RGB arrangement, each group uses three chips of red, green, and blue, which are evenly and horizontally spaced to realize an RGB effect. The size of a single group is relatively large, and it is also difficult to assemble in that three chips of red, green, and blue need to be arranged in sequence. The number of chips transferred in a mass transfer process is relatively large, which leads to relatively high requirements on the mass transfer process of the Micro-LEDs and a relatively low mass production yield.

SUMMARY

In view of the above, it is one purpose of this application to provide a light-emitting chip, a light board, and a method of assembling the light-emitting chip. By setting the structure of the light-emitting chip, the requirements for the mass transfer process are reduced, and the production yield of Micro-LED displays using the light-emitting chip is improved.

This application discloses a light-emitting chip, which is used in light boards. The light-emitting chip includes a first chip, a second chip, and a third chip. The second chip includes a first side and a second side. The first side includes a first protrusion. The second side includes a second protrusion. The first chip includes a first groove. The third chip includes a second groove. The first chip is disposed on the first side, and the first groove mate with the first protrusion. The third chip is disposed on the second side, and the second groove only mates with the second protrusion. The first chip and the third chip are symmetrically arranged about a central axis of the second chip thus forming the light-emitting chip in combination.

In some embodiments, a first magnetic attraction layer is disposed on the first protrusion, a second magnetic attraction layer is disposed in the first groove, a third magnetic attraction layer is disposed on the second protrusion, and a fourth magnetic attraction layer is disposed in the second groove. The first magnetic attraction layer and the second magnetic attraction layer attract each other. The third magnetic attraction layer and the fourth magnetic attraction layer attract each other. The first magnetic attraction layer and the third magnetic attraction layer have opposite polarities. The second magnetic attraction layer and the fourth magnetic attraction layer have opposite polarities.

In some embodiments, the light-emitting surface area of the first chip is S1, the light-emitting surface area of the second chip is S2, and the light-emitting surface area of the third chip is S3, where the S1, the S2 and the S3 are all equal.

In some embodiments, the light-emitting surface of the light-emitting chip includes a first electrostatic coating. A second electrostatic coating is disposed on the side of the light-emitting chip on which the first chip is disposed. A third electrostatic coating is disposed on the side of the light-emitting chip where the third chip is disposed. A front side of the light-emitting chip includes a fourth electrostatic coating. A back side of the light-emitting chip includes a fifth electrostatic coating. The second electrostatic coating and the third electrostatic coating have opposite charge polarities. The fourth electrostatic coating and the fifth electrostatic coating have opposite charge polarities.

In some embodiments, the first chip includes a first connecting piece. The third chip includes a second connecting piece. When the first chip and the third chip are combined with the second chip to form the light-emitting chip, the first chip and the second chip are electrically connected through the first connecting piece, and the third chip and the second chip are connected through the second connecting piece. The first connecting piece and the second connecting piece are conductor layers.

In some embodiments, the first electrostatic coating is a positively charged electrostatic coating.

In some embodiments, the conductor layer is made of metallic copper.

In some embodiments, the light-emitting chip has a rectangular structure.

This application further discloses a light board used in a display device, including a bottom plate and the light-emitting chip as described above. The light-emitting chip is installed on the bottom plate.

This application further discloses a method of assembling a light-emitting chip, which is applied to the light-emitting chip as described above, including the following operations:placing the first chips, the second chips and the third chips into an assembling apparatus;starting the assembling apparatus to move the first chips, the second chips, and the third chips to be combined and assembled together to form the light-emitting chip;wherein the first groove only mate with the first protrusion, and the second groove only mate with the second protrusion;

In the light-emitting chip of this application, a first protrusion and a second protrusion are disposed on the second chip120, a first groove is defined in the first chip110, and a second groove is defined in the third chip130, so that the first chip and the third chip may be respectively installed on the first side and the second side of the second chip that are opposite to each other, so that the first chip, the second chip, and the third chip are assembled together to form the light-emitting chip. Furthermore, the first protrusion only mate with the first groove, and the second protrusion only mate with the second groove. There will be no assembly errors of the light-emitting chip; there will only be situations where the assembly of the light-emitting chip is completed or not. When the light-emitting chip is installed in a Micro-LED display screen, compared with the RGB solution that requires three chips of red, green and blue to be evenly spaced together on a horizontal plane to form an RGB effect, the light-emitting chip of this embodiment has a relatively low requirement for the mass transfer processes when installed in a Micro-LED display. Since the first chip, the third chip, and the second chip are first assembled together to form the light-emitting chip which is then installed in the light board, the number of chips that require mass transfer and installation is sharply reduced for the light board using the light-emitting chip of this embodiment, and the requirements on the mass transfer process is reduced, thereby improving the production yield of Micro-LED displays, and also reducing the difficulty of assembly, making it easier to produce Micro-LED displays.

DETAILED DESCRIPTION OF EMBODIMENTS

It should be understood that the terms used herein, the specific structures and function details disclosed herein are intended for the mere purposes of describing specific embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

As used herein, terms “first”, “second”, or the like are merely used for illustrative purposes, and shall not be construed as indicating relative importance or implicitly indicating the number of technical features specified. Thus, unless otherwise specified, the features defined by “first” and “second” may explicitly or implicitly include one or more of such features. Terms “multiple”, “a plurality of”, and the like mean two or more. Term “comprising”, “including”, and any variants thereof mean non-exclusive inclusion, so that one or more other features, integers, steps, operations, units, components, and/or combinations thereof may be present or added.

In addition, terms “center”, “transverse”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, or the like are used to indicate orientational or relative positional relationships based on those illustrated in the drawings. They are merely intended for simplifying the description of the present disclosure, rather than indicating or implying that the device or element referred to must have a particular orientation or be constructed and operate in a particular orientation. Therefore, these terms are not to be construed as restricting the present disclosure.

Furthermore, as used herein, terms “installed on”, “mounted on”, “connected to”, “coupled to”, “connected with”, and “coupled with” should be understood in a broad sense unless otherwise specified and defined. For example, they may indicate a fixed connection, a detachable connection, or an integral connection. They may denote a mechanical connection, or an electrical connection. They may denote a direct connection, a connection through an intermediate, or an internal connection between two elements. For those of ordinary skill in the art, the specific meanings of the above terms as used in this application can be understood depending on specific contexts.

This application will be described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, should no conflict is present, the various embodiments or technical features described below can be combined arbitrarily to form new embodiments.

As illustrated inFIGS.1to3, as a first embodiment of this application, a light-emitting chip100is disclosed. The light-emitting chip100is applied to a light board200. The light-emitting chip100includes a first chip110, a second chip120, and a third chip130. The second chip120includes a first side121and a second side122. The first side121includes a first protrusion123. The second side122includes a second protrusion124. The first chip110includes a first groove111. The third chip130includes a second groove131. The first chip110is disposed on the first side121, and the first groove111mate with the first protrusion123. The third chip130is disposed on the second side122, and the second groove131is cooperatively connected with the second protrusion124. The first chip110and the third chip130are symmetrically arranged about a central axis of the second chip120thus forming the light-emitting chip100. The first side121and the second side122are arranged oppositely, so that the first chip110and the third chip130are respectively arranged on both sides of the second chip120. It should be noted that the first groove111only mate with the first protrusion123, and the second groove131only mate with the second protrusion124to prevent the first chip110and the third chip130of the light emitting chip100from being installed in opposite positions. In this embodiment, the first chip110is a red chip, the second chip120is a green chip, and the third chip130is a blue chip. The first chip110, the second chip120, and the third chip130together form the light-emitting chip100. Of course, the first chip110is not to be limited to the red chip, the second chip120is not to be limited to the green chip, and the third chip130is not to be limited to the blue chip. Designers may choose a design depending on the actual situation, and there are no restrictions thereto.

In the light-emitting chip100of this embodiment, a first protrusion123and a second protrusion124are disposed on the second chip120, a first groove111is defined in in the first chip110, and a second groove131is disposed on the third chip130, so that the first chip110and the third chip130may be respectively installed on the first side121and the second side122of the second chip120that are opposite to each other, so that the first chip110, the second chip120, and the third chip130are assembled together to form the light-emitting chip100. Furthermore, the first protrusion123only mate with the first groove111, and the second protrusion124only mate with the second groove131. There will be no assembly errors of the light-emitting chip100; there will only be situations where the assembly of the light-emitting chip100is completed or not. When the light-emitting chip100is installed in a Micro-LED display screen, compared with the RGB solution that requires three chips of red, green and blue to be evenly spaced together on a horizontal plane to form an RGB effect, the light-emitting chip100of this embodiment has a relatively low requirement for the mass transfer processes when installed in a Micro-LED display. Since the first chip110, the third chip130, and the second chip120are first assembled together to form the light-emitting chip100which is then installed in the light board200, the number of chips that require mass transfer and installation is sharply reduced for the light board200using the light-emitting chip100of this embodiment, and the requirements on the mass transfer process is reduced, thereby improving the production yield of Micro-LED displays, and also reducing the difficulty of assembly, making it easier to produce Micro-LED displays.

A light-emitting surface area of the first chip110is S1. A light-emitting surface area of the second chip120is S2. A light-emitting surface area of the third chip130is S3. The S1, the S2 and the S3 are all equal to ensure that after each of the light-emitting chips100is installed on the light board200, the first chip110, the second chip120, and the third chip130of the light-emitting chip100emit light in equal areas, so as to ensure that there will be no abnormalities when the screen is displaying an image. It should be noted that the light-emitting surfaces of the first chip110, the second chip120, and the third chip130refer to the surfaces of the first chip110, the second chip120, and the third chip130facing away from the bottom plate300. The light-emitting chip100formed by combining the first chip110, the third chip130, and the second chip120may have a rectangular structure. Of course, the light-emitting chip100formed by combining the first chip110, the second chip120, and the third chip130may also be in other shapes and structures, such as a cylinder, a cube, etc. Designers can choose a design depending on the actual situation, and there are no restrictions thereto.

As illustrated inFIGS.1to3, the first chip110includes a first connecting piece113, and the third chip130includes a second connecting piece133. When the first chip110and the third chip130are combined with the second chip120to form the light-emitting chip100, the first chip110and the second chip120are electrically connected through the first connecting piece113, and the third chip130and the second chip120are connected through the second connecting piece133. The first connecting piece113and the second connecting piece133may be conductor layers or connecting circuit layers. In this way, with the assembled light-emitting chip100, it is only needed to set pins on the first chip110or the third chip130or the second chip120alone, so that the first chip110, the third chip130, and the second chip120of the light-emitting chip100can be powered up together through these pins, thereby achieving a design of saving pins. In this embodiment, if the first connecting piece113and the second connecting piece133are conductor layers, the conductor layers may be made of metallic copper, so that the conductor layer has good electrical conductivity.

Of course, the designers may also sequentially set pins on the first chip110, the third chip130, and the second chip120for connection and power supply. At the same time, the first chip110and the second chip120may also be powered together through the first connecting piece113, and the third chip130and the second chip120may also be powered together through the second connecting piece133, thereby improving the fault tolerance rate for abnormal pins on the first chip110, the third chip130, and the second chip120when assembling the light-emitting chip100onto the light board200. For each light-emitting chip100, it is only needed to ensure that the pin(s) of any one of the first chip110, the third chip130, or the second chip120is normal before power can be used, which greatly improves the fault tolerance rate of installation. It should be noted that the first connecting piece113only needs to electrically connect the first chip110and the second chip120, and the second connecting piece133only needs to electrically connect the third chip130and the second chip120. Designers can choose and design the specific connection structures according to actual needs, and there are no restrictions thereto.

Further, in order to more conveniently assemble the first chip110and the third chip130onto the first side121and the second side122of the second chip120respectively, a first magnetic attraction layer125is disposed on the first protrusion123, a second magnetic attraction layer112is disposed in the first groove111, a third magnetic attraction layer126is disposed on the second protrusion124, and a fourth magnetic attraction layer132is disposed in the second groove131. The first magnetic attraction layer125and the second magnetic attraction layer112are attracted to each other. The third magnetic attraction layer126and the fourth magnetic attraction layer132are attracted to each other. The first magnetic attraction layer125and the third magnetic attraction layer126have opposite polarities. The second magnetic attraction layer112and the fourth magnetic attraction layer132have opposite polarities. When assembling the light-emitting chip100, since the first groove111is fitted with the first protrusion123, and the second groove131is fitted with the second protrusion124, the second magnetic attraction layer112in the first groove111of the first chip110is attracted to the first magnetic attraction layer125of the first protrusion123of the second chip120so that the first chip110and the second chip120moving towards each other so that the first groove111of the first chip110can be more easily fitted with the first protrusion123of the second chip120. The fourth magnetic attraction layer132in the second groove131of the third chip130is attracted to the third magnetic attraction layer126of the second protrusion124of the second chip120so that the third chip130and the second chip120approach each other, causing the third chip130and the second chip120to approach each other, so that the second groove131of the third chip130can be more easily fitted with the second protrusion124of the second chip120. Under the action of the first magnetic attraction layer125, the second magnetic attraction layer112, the third magnetic attraction layer126, and the fourth magnetic attraction layer132, the first chip110, the third chip130and the second chip120are more easily assembled to form the light-emitting chip100. It should be noted that although the second magnetic attraction layer112of the first chip110will attract the fourth magnetic attraction layer132of the third chip130, since the second magnetic attraction layer112of the first chip110is located in the first groove111and the fourth magnetic attraction layer132of the third chip130is located in the second groove131, even if the first chip110and the third chip130are attracted to each other, the first chip110and the third chip130can be separated by a slight force.

As illustrated inFIG.4, as a second embodiment of this application, an assembling apparatus900is disclosed. The assembling apparatus900is used for assembling the light-emitting chip100. The assembling apparatus900includes a first turntable910, a second turntable920, a third turntable930, a first driving assembly940, and a second driving assembly950. The first turntable910is connected to the first driving assembly940so that the first driving assembly940drives the first turntable910to rotate. The second driving assembly950is connected to the third turntable930so that the second driving assembly950drives the third turntable930to rotate. The second turntable920is disposed between the first turntable910and the third turntable930. One end of the second turntable920abuts on the first turntable910, and the other end abuts on the third turntable930. The first turntable910includes a first screening hole911, the second turntable920includes a second screening hole921, and the third turntable930includes a third screening hole931. The first screening hole911, the second screening hole921, and the third screening hole931can be rotated to correspond. The first turntable910includes a first snap piece912, and the second turntable920includes a first catching groove922. When the first snap piece912is fitted with the first catching groove922, the first screening hole911corresponds to the second screening hole921.

When using the assembling apparatus900to assemble the light-emitting chip100, firstly, the first screening hole911, the second screening hole921, and the third screening hole931are misaligned. Then the first chips110, the second chips120, and the third chips130are poured into the first turntable910. The first drive assembly940drives the first turntable910to reciprocate, so that the first chips110, the second chips120, and the third chips130located in the first turntable910make irregular movements, so that the first chips110, the second chips120and the third chips130can be assembled into the light-emitting chips100during the moving process. When the number of assembled light-emitting chips100in the first turntable910is sufficient, the first driving assembly940stops operating, and the first turntable910is rotated so that the first snap piece912is fitted with the first catching groove922, so that the first screening hole911and the second screening hole921face each other. The third turntable930is then driven to rotate through the second driving assembly950. When the third turntable930rotates until the third screening hole931corresponds to the first screening hole911and the second screening hole921, the unassembled first chips110, third chips130, and second chips120will be separated from the assembling apparatus900through the first screening hole911, the second screening hole921, and the third screening hole931that face each other, while the assembled light-emitting chips100will remain in the first turntable910for the next manufacturing procedure. The size of each the first screening hole911, the second screening hole921, and the third screening hole931is smaller than the light emitting chip100and larger than the first chip110, the second chip120, and the third chip130so as to ensure that the unassembled first chips110, third chips130, and second chips120can be separated from the assembling apparatus900. The first driving assembly940includes a first motor and a first power connection shaft. The output shaft of the first motor is connected to the first power connection shaft. The first power connection shaft is fixedly connected to the first turntable910to drive the first turntable910to rotate. The second driving assembly950includes a second motor and a second power connection shaft. The output shaft of the second motor is connected to the second power connection shaft. The second power connection shaft is fixedly connected to the third turntable930to drive the third turntable930to rotate.

As illustrated inFIG.5, as a third embodiment of this application, a method of assembling a light-emitting chip is disclosed, which is applied to the light-emitting chips100described in the foregoing embodiments. The method includes the following operations:placing the first chips, the second chips and the third chips into an assembling apparatus;starting the assembling apparatus to move the first chips, the second chips, and the third chips to be combined and assembled together to form the light-emitting chip;wherein the first groove only mate with the first protrusion, and the second groove only mate with the second protrusion;wherein the assembling apparatus is the assembling apparatus described in the foregoing embodiments.

In the method of assembling the light-emitting chip of this embodiment, by using the assembling apparatus900and the first chips110, the second chips120, and the third chips130, the assembling apparatus900can realize automatic assembly of the light-emitting chips100, and can automatically screen out the assembled light-emitting chips100. Thus, the light-emitting chips100can be formed before being installed on the light board200. Compared with the RGB solution that requires three chips of red, green and blue to be evenly spaced in a horizontal plane to form an RGB effect, the light-emitting chip100of this embodiment has relatively a low requirement for the mass transfer process when installed on a Micro-LED display screen. Since the first chip110, the third chip130, and the second chip120are first assembled into the light-emitting chip100and then installed on the light board200, the number of chips that require mass transfer and installation in the light board200using the light-emitting chip100of this embodiment is drastically reduced, and the requirements for the mass transfer process are reduced, thereby improving the production yield of the Micro-LED display and also reducing the difficulty of assembly, making it easier to produce Micro-LED displays.

As illustrated inFIGS.1and6, as a fourth embodiment of this application, which is an improvement of the first embodiment of this application, a light-emitting chip100is disclosed. The light-emitting surface of the light-emitting chip100includes a first electrostatic coating140. The light-emitting surface of the light-emitting chip100is a top surface of the light-emitting chip100. A second electrostatic coating141is disposed on the side of the light-emitting chip100on which the first chip110is disposed. A third electrostatic coating142is disposed on the side of the light-emitting chip100where the third chip130is disposed. A front side of the light-emitting chip100includes a fourth electrostatic coating143. A back side of the light-emitting chip100includes a fifth electrostatic coating144. The front and back sides of the light-emitting chip100are each adjacent to the light-emitting surface, and the front and back sides of the light-emitting chip100are arranged opposite to each other. The second electrostatic coating141and the third electrostatic coating142have opposite charge polarities. The fourth electrostatic coating143and the fifth electrostatic coating144have opposite charge polarities. The first electrostatic coating140is a positively charged electrostatic coating. In this embodiment, the first electrostatic coating140, the second electrostatic coating141, the third electrostatic coating142, the fourth electrostatic coating143, and the fifth electrostatic coating144are disposed on the light-emitting chip100, and the second electrostatic coating141and the third electrostatic coating142have opposite charge polarities, and the fourth electrostatic coating143and the fifth electrostatic coating144have opposite charge polarities, so that after the light-emitting chip100is assembled on the light board200, orientational positioning can be performed through the first electrostatic coating140, the second electrostatic coating141, the third electrostatic coating142, the fourth electrostatic coating143, and the fifth electrostatic coating144to complete the assembly of the light-emitting chip100, ensuring that the arrangement of each light-emitting chip100is equal. It should be noted that designers can set corresponding capacitor plates to realize the direction positioning of the first electrostatic coating140, the second electrostatic coating141, the third electrostatic coating142, the fourth electrostatic coating143, and the fifth electrostatic coating144. Specific usage conditions are described in conjunction with the following examples.

As illustrated inFIGS.7and8, as a fifth embodiment of this application, a light board200is disclosed. The light board200includes a bottom plate300, a plurality of light-emitting chips100, a main capacitor plate400, and an assembling structure500. The bottom plate300includes a plurality of partition plates310. The plurality of partition plates310divide the bottom plate300into a plurality of sections. The plurality of light-emitting chips100are respectively arranged in a plurality of the sections. A first electrostatic coating140is disposed on a top surface of the light-emitting chip100. The main capacitor plate400is arranged opposite to the bottom plate300. The light-emitting chips100are disposed between the bottom plate300and the main capacitor plate400. The assembling structure500is arranged on the bottom plate300. The assembling structure500is connected to the main capacitor plate400. The assembling structure500drives the main capacitor plate400to reciprocate toward or away from the bottom plate300. The light-emitting chips100are the light-emitting chips100described in the above embodiment. The partition plate310further includes a sub-capacitor plate311. The sub-capacitor plate311is disposed on the side of the partition plate310facing the section. The polarities of the opposite sub-capacitor plates311in each of the sections are opposite. The adjacent sub-capacitor plates311have the same polarity. Taking one section as an example. The section includes four directions: front, back, left, and right. The sub-capacitor plate311located in the front position and the sub-capacitor plate311located in the rear position have opposite polarities. The sub-capacitor plate311located on the left position and the sub-capacitor plate311located on the right position have opposite polarities. The sub-capacitor plate311located in the front position may have the same polarity as the sub-capacitor plate311located in the left position, and the sub-capacitor plate311located in the rear position may have the same polarity as the sub-capacitor plate311located in the right position. During assembly, the light-emitting chips100can be laid directly into the sections. There is no need to first adjust the orientations in which the light-emitting chips100are placed, just ensuring that the light-emitting chips100are laid in each section would suffice. The main capacitor plate400is then installed on the assembling structure500so that the main capacitor plate400is connected to the assembling structure500. When the main capacitor plate400is energized, the light-emitting chips100will gradually move from the sections toward the main capacitor plate400under the action of the first electrostatic coating140. Then the assembling structure500is used to drive the main capacitor plate400to move in a direction away from the bottom plate300, thereby driving the light-emitting chips100to leave the sections. At this time, the light-emitting chips100have enough turning space, and the light-emitting chips100can rotate to make the top surface of the light-emitting chip100contacting the main capacitor plate400. At this time, all the light-emitting chips100on the light board200are adjusted so that the top surfaces of the light-emitting chips100abut on the main capacitor plate400. The assembling structure500is then used to drive the main capacitor plate400to move in the direction of the bottom plate300to install the light-emitting chips100into the sections. Then, the sub-capacitor plates311arranged in various orientations in the sections are energized. Under the action of the sub-capacitor plates311and the second electrostatic coating141, the third electrostatic coating142, the fourth electrostatic coating143, and the fifth electrostatic coating144disposed on the light-emitting chips100, the light-emitting chips100are completely oriented so that the directions of all light-emitting chips100on the light board200are consistent with each other, thereby completing the massive transfer and installation of the light-emitting chips100on the light board200. In summary, in the light board200in this embodiment, the first electrostatic coating140, the second electrostatic coating141, the third electrostatic coating142, the fourth electrostatic coating143, and the fifth electrostatic coating144are disposed on the light emitting chip100, and sub-capacitor plates311are arranged in various orientations in the sections. The direction positioning of each light-emitting chip100is therefore performed by the first electrostatic coating140, the second electrostatic coating141, the third electrostatic coating142, the fourth electrostatic coating143, and the fifth electrostatic coating144, thus completing the assembly of the light-emitting chips100and ensuring that the arrangement of each light-emitting chip100is equal, thereby improving the mass transfer efficiency and accuracy of the light-emitting chips100. Compared with the original Micro-LED mass transfer process, the requirements for the Micro-LED mass transfer process are reduced, the production yield of Micro-LED displays is improved, and the difficulty of assembly is reduced, making it easier to produce Micro-LED displays. The designs of the light board200and the light-emitting chips100in this embodiment complement each other.

The assembling structure500includes a driving piece510, a transmission assembly520, and a connecting rod530. The driving piece510is connected to the transmission assembly520. The transmission assembly520is connected to the connecting rod530. The connecting rod530is connected to the main capacitor plate400. When the driving piece510is operating, the driving piece510drives the transmission assembly520to move. The transmission assembly520drives the connecting rod530to move back and forth in the direction from the bottom plate300to the main capacitor plate400, thereby driving the main capacitor plate400to move. The connecting rod530includes a suction piece531. The suction piece531is connected to the main capacitor plate400to adsorb the main capacitor plate400on the connecting rod530. In this embodiment, the suction piece531may be a small suction ball, and the driving piece510may be a motor. The motor is connected to the connecting rod530through a transmission assembly520to drive the main capacitor plate400to move. The main capacitor plate400is adsorbed on the connecting rod530through the small suction balls. The small suction ball may be provided in multiple. The multiple small suction balls are adsorbed on the main capacitor plate400at the same time to ensure the stability of the connection between the connecting rod530and the main capacitor plate400. The assembling structure500may be provided in multiple. The multiple assembling structures500are respectively disposed on the four sides of the bottom plate300to achieve stable support for the main capacitor plate400. The transmission assembly520includes a first transmission gear521, a second transmission gear522, and a crank rod523. The driving piece510is a motor. An output shaft of the motor is connected to the first transmission gear521. The first transmission gear521meshes with the second transmission gear522. The second transmission gear522is connected to the crank rod523. The crank rod523is connected to the connecting rod530. In this way, when the assembling structure500of this embodiment is in use, the motor is started to work, the output shaft of the motor is connected to the first transmission gear521, the first transmission gear521meshes with the second transmission gear522, the second transmission gear522is connected to the crank rod523, and the crank rod523is connected to the connecting rod530. Thus, the motor can directly drive the crank rod523through the first transmission gear521and the second transmission gear522, so that the crank rod523makes a circular motion. The connecting rod530disposed on the crank rod523will move with the movement of the crank rod523, thereby driving the main capacitor plate400to move toward or away from the bottom plate300thus making a reciprocating motion. In this embodiment, the first transmission gear521, the second transmission gear522, and the crank rod523are arranged to drive the movement of the connecting rod530, and the operation is realized through multi-stage motion transmission. The bottom plate300includes an accommodating groove301and a receiving groove302. The accommodating groove301and the receiving groove302are connected to each other. The motor is arranged in the receiving groove302. The first transmission gear521and the second transmission gear522are also arranged in the receiving groove302. The crank rod523is arranged in the accommodating groove301. One end of the crank rod523extends into the receiving groove302and is connected with the second transmission gear522. The crank rod523is rotatably arranged in the accommodating groove301. With this arrangement, most of the assembling structure500is disposed inside the bottom plate300, thereby saving the external space of the bottom plate300and making the appearance of the light board200more concise and beautiful.

A power supply board600is further disposed on the bottom plate300. The power supply plate600includes a connecting hole610. Pins are disposed on the bottom surface of the light-emitting chip100. When the light-emitting chip100is installed into the section, the pins are located in the connecting holes610. The power supply board600is electrically connected to the light-emitting chip100through the connecting holes610and pins to provide power for the light-emitting chip100for use, thereby display an image.

The bottom plate300further includes a sunken groove320. The sunken groove320is arranged corresponding to the partition plate310. The elastic piece321is disposed in the sunken groove320. A support plate322is disposed on one end of the partition plate310adjacent to the sunken groove320. One end of the elastic piece321abuts on the bottom of the sunken groove320, and the other end abuts on the support plate322. When the main capacitor plate400moves toward the bottom plate300, the main capacitor plate400contacts the partition plate310to drive the partition plate310to move toward the bottom of the sunken groove320. After the orientation adjustment of the light-emitting chips100is completed, the assembling structure500drives the main capacitor plate400to move toward the bottom plate300. The main capacitor plate400abuts on the partition plate310to drive the partition plate310to move toward the bottom of the sunken groove320, thereby pressing the light-emitting chip100in the section to avoid problems such as movement of the light-emitting chip100due to the orientation in which the light board200is placed during use. At the same time, the light-emitting chip100can also be tightly pressed on the bottom plate300to prevent the pins of the light-emitting chip100from being separated from the connecting holes610of the power supply board600and causing the light-emitting chip100to be powered off.

As illustrated inFIG.9, as a sixth embodiment of this application, a light board200is disclosed. The light board200includes a bottom plate300and the light-emitting chip100as described in the above embodiment. The light-emitting chip100is installed on the bottom plate300. In the light board200of this embodiment, the first protrusion123and the second protrusion124are disposed on the second chip120, the first groove111is defined in the first chip110, and a second groove131is defined in the third chip130, so that the first chip110and the third chip130can be respectively installed on the first side121and the second side122of the second chip120that are opposite to each other, so that the first chip110, the second chip120, and the third chip130are assembled together to form the light emitting chip100. When the light-emitting chip100is used and installed on a Micro-LED display screen, compared with the RGB solution that requires three chips of red, green and blue which are evenly spaced together on a horizontal plane to form an RGB effect, the light-emitting chips100of this embodiment have relatively low requirements for mass transfer processes when installed on a Micro-LED display. Since the first chip110, the third chip130and the second chip120are first assembled together as the light-emitting chip100which is then installed on the light board200, the number of chips that require mass transfer and installation in the light board200using the light-emitting chip100of this embodiment is drastically reduced, and the requirements for the mass transfer process are reduced, thereby improving the production yield of Micro-LED displays and also reducing the difficulty of assembly, making it easier to produce Micro-LED displays.

As illustrated inFIG.10, as a seventh embodiment of this application, a display device800is disclosed. The display device800includes a driving circuit700and the light board200as described in the above embodiment. The driving circuit700is used to drive the light board200. When the light-emitting chips100of the display device800of this embodiment are installed on the Micro-LED display screen, the requirements for the mass transfer process are relatively low. Since the first chip110, the third chip130and the second chip120are first assembled as the light-emitting chip100which is then installed on the light board200, the number of chips that require mass transfer and installation in the light board200is drastically reduced, and the requirements for the mass transfer process are reduced, thereby improving the production yield of the display device800, and also reducing the difficulty of assembly, making it easier to produce Micro-LED displays.

It should be noted that the limitations of various operations involved in this solution will not be deemed to limit the order of the operations, provided that they do not affect the implementation of the specific solution, so that the operations written earlier may be executed earlier or they may also be executed later or even at the same time. As long as the solution can be implemented, they should all be regarded as falling in the scope of protection of this application.

It should be noted that the inventive concept of this application can be formed into many embodiments, but the length of the application document is limited and so these embodiments cannot be enumerated one by one. The technical features can be arbitrarily combined to form a new embodiment, and the original technical effect may be enhanced after the various embodiments or technical features are combined.

The foregoing description is merely a further detailed description of this application made with reference to some specific illustrative embodiments, and the specific implementations of this application will not be construed to be limited to these illustrative embodiments. For those having ordinary skill in the technical field to which this application pertains, numerous simple deductions or substitutions may be made without departing from the concept of this application, which shall all be regarded as falling in the scope of protection of this application.