CN114120845B - Display module and spliced display device - Google Patents
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- CN114120845B CN114120845B CN202111472705.XA CN202111472705A CN114120845B CN 114120845 B CN114120845 B CN 114120845B CN 202111472705 A CN202111472705 A CN 202111472705A CN 114120845 B CN114120845 B CN 114120845B
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
Abstract
The embodiment of the application provides a display module and a spliced display device, wherein the display module comprises a display panel and a support frame, and the display panel is arranged on one side of the support frame through a connecting adhesive; the support frame comprises a first plane and a second plane which are oppositely arranged along a first direction, and a peripheral side surface connecting peripheral edges of the first plane and the second plane; the first plane is attached to the display panel, the first direction is perpendicular to the first plane, and the second plane is far away from the display panel relative to the first plane; in projection in the first direction to the display panel, the first plane coincides with the peripheral edge of the display panel, and the second plane falls into the first plane. The support frame adopts the design of 'upper width and lower width', and the 'upper width' can ensure the splicing effect between the display modules; the display module is more easy to assemble and disassemble due to the fact that the display module is narrow downwards, and meanwhile the collision phenomenon of the display module is not easy to occur; in addition, the design of 'down narrow' enables the display module to have a fine adjustment space during splicing, and the splicing effect can be guaranteed.
Description
Technical Field
The embodiment of the application relates to the technical field of display devices, in particular to a display module, a spliced box body and a spliced display device.
Background
The spliced display device comprises at least one spliced box body, each spliced box body comprises a box body base and a plurality of display modules, and each display module comprises a display panel and an aluminum frame; when the display module assembly is spliced, the display module assembly in the spliced box body is spliced and installed on the box body base, so that the spliced display of a plurality of display panels can be realized.
However, in order to meet higher concatenation precision, between display module assembly and the display module assembly to and between display module assembly and the box base be close-fitting, thereby lead to the increase of readjustment degree of difficulty after the concatenation, lead to display module assembly and dismantlement comparatively difficult moreover.
Disclosure of Invention
Accordingly, an objective of the embodiments of the present application is to provide a display module and a tiled display device.
In a first aspect, an embodiment of the present application provides a display module, including a display panel and a support frame, where the display panel is mounted on one side of the support frame through a connection adhesive; the support frame comprises a first plane and a second plane which are oppositely arranged along a first direction, and a peripheral side surface connecting peripheral edges of the first plane and the second plane; the first plane is attached to the display panel, the first direction is perpendicular to the first plane, and the second plane is far away from the display panel relative to the first plane;
in a projection of the display panel in the first direction, the first plane coincides with the peripheral edge of the display panel, and the second plane falls into the first plane.
In the support frame in the display module, the design of 'upper wide and lower narrow' is adopted, namely, the part of the support frame close to the display panel is aligned with the peripheral end face of the display panel, and the part far away from the display panel is narrowed; the upper width can ensure that the joint between the display modules does not change relative to the display modules in the related art, the spliced display effect is ensured, the lower width can ensure that the display modules are easy to take off and place on the box body base when the display modules are assembled and disassembled, meanwhile, the collision phenomenon of the display modules is not easy to occur, the fragile glass plate is protected, and the assembly yield is ensured; in addition, the design of 'down narrow' enables the display module to have a certain fine tuning space relative to the related art, so that when the joint effect is found to be poor, the seamless joint effect can be achieved through fine tuning.
In one possible embodiment, the peripheral side surface includes a first connection surface and a second connection surface along the first direction, the first connection surface connecting the first plane and being disposed parallel to the first direction, the second connection surface connecting the first connection surface and the second plane.
In one possible embodiment, the first connection surface and the first plane are finished surfaces and the second connection surface is a rough surface.
In one possible embodiment, in the first direction, the thickness of the display panel is 0.7mm, and the length of the first connection surface is 2 to 3mm.
In one possible implementation manner, the supporting frame is an aluminum frame with hollowed-out parts, and the second connecting surface is provided with a weight reduction groove.
In one possible embodiment, the support frame is fitted with a magnetic attraction piece that cooperates with a magnetic attraction suction cup.
In one possible embodiment, the magnetic attraction piece is a magnetic attraction pad perpendicular to the first direction.
In one possible embodiment, the magnetic attraction piece comprises the magnetic attraction pad arranged at the center of the supporting frame, and/or comprises at least two magnetic attraction pads uniformly arranged around the center of the supporting frame.
In one possible implementation manner, the supporting frame is a rectangular plate-shaped structure, and the magnetic attraction piece comprises two magnetic attraction gaskets symmetrically arranged relative to a perpendicular bisector of the rectangular side.
In one possible implementation manner, the support frame is provided with a first circuit board and a first connector, the first circuit board is electrically connected with the display panel through a flexible circuit board, and a first plug connector is arranged on the first circuit board.
In one possible implementation manner, the display panel includes an array substrate and a plurality of pixel units arranged in an array manner on one side of the array substrate, where the pixel units are sub-millimeter light emitting diodes or micro light emitting diodes.
In one possible implementation manner, the display panel further comprises a transparent cover plate, the array substrate is of a transparent structure, and the transparent cover plate is connected with the array substrate through transparent optical cement; the sub-millimeter light emitting diode or the micron light emitting diode is arranged on one side of the array substrate far away from the transparent optical adhesive.
According to a second aspect of the present invention, there is provided a tiled display device, including at least one tiled case, where the tiled case includes at least one display module according to any one of the first aspect of the embodiments, and a case base, where the display module in the tiled case is tiled and mounted on the case base.
In one possible implementation manner, the display module is provided with a first connecting piece and a first plug connector, the box base is provided with mounting positions corresponding to the display modules one by one, each mounting position is provided with a second connecting piece and a second plug connector, the first connecting piece and the second connecting piece are detachably connected, and the first plug connector is in pluggable fit with the second plug connector.
In one possible implementation manner, the first connecting piece is a magnetic attraction nut, and the second connecting piece is a magnetic attraction post for attracting the magnetic attraction nut.
In one possible implementation manner, one of the box base and the display module is provided with a positioning pin, the other is provided with a positioning hole matched with the positioning pin, and the height of the positioning pin is adjustable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only one or more embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present application;
fig. 2 is an exploded view of a display module according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a base of a box according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a display module and a chassis of a case according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of cooperation between a plurality of display modules and a chassis of a case according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an aluminum frame according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an aluminum frame according to a second embodiment of the present disclosure;
fig. 8 is a schematic diagram of matching an aluminum frame with a display panel according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram of splicing between display modules according to an embodiment of the present disclosure.
Reference numerals illustrate:
1-transparent cover plate, 2-transparent optical adhesive, 3-array substrate, 4-aluminum frame, 5-magnetic attraction nut, 6-first circuit board, 7-locating pin, 8-display module, 9-double faced adhesive tape, 10-display panel, 11-base body, 12-magnetic attraction column, 13-locating hole, 14-second circuit board, 15-power supply, 16-installation cavity, 17-box base, 18-first plane, 19-magnetic attraction gasket, 20-hollowed part, 21-peripheral side, 22-weight reduction groove, 23-second plane, 24-first connecting surface and 25-second connecting surface.
Detailed Description
In the related art, a tiled display device includes a plurality of tiled cases, each of which includes a case base and a plurality of display modules, each of which includes a display panel; when the splice, a plurality of display modules splice and install in the box base, then a plurality of splice box splice combination to can realize the splice display of a plurality of display panels.
In the above display module, the display panel includes pixel units arranged in an array, and the pixel units may be LEDs (Light-Emitting diodes), sub-millimeter LEDs (Mini LEDs), micro LEDs (Micro LEDs), liquid crystal pixel units (Liquid Crystal Display, abbreviated as LCD), organic Light-Emitting diodes (abbreviated as OLED), and the like.
The Mini LED is an LED chip with a grain size of about 100-300 μm, and the Micro LED is an LED chip with a grain size of less than 100 μm. The Mini LED/Micro LED can be used as a self-luminous LED display, and has the advantages of low power consumption, high brightness, high resolution, high color saturation, high reaction speed, long service life, high efficiency and the like. The Mini LED/Micro LED display module can be spliced to realize ultra-large screen display, and has wide application prospect in the large-size display fields such as command monitoring centers, business centers, high-end conferences, private cinema and the like.
Taking Mini LED/Micro LED display panel as an example, two splicing schemes of PCB splicing and glass-based splicing are provided in the related art. For a splicing scheme with the Pixel Pitch (Pixel Pitch) of more than 1.2mm, the method for splicing is simpler because the Pixel Pitch is larger, the precision requirement is not high, and the PCB splicing can be selected. In the scheme of PCB splicing, mini LED/Micro LED chips are welded on a PCB, and mounting holes are formed in the PCB. Meanwhile, a first Connector (Connector 1) is arranged on the PCB, a second Connector (Connector 2) is arranged on the box base, and the first Connector and the second Connector are in butt joint when the display panel is assembled with the box base, so that display control of the display panel is performed through the first Connector and the second Connector. The PCB board is fixedly connected with the box base through a connecting piece penetrating through the mounting hole.
With innovative iterations of display technology, mini/Micro LED display products with pixel pitches below 0.9mm and high resolution start to be introduced to the market. For Mini LED/Micro LED display splicing schemes with pixel spacing below 0.9mm, the PCB splicing is difficult to realize, and glass-based splicing is usually required. In the glass-based splicing scheme, mini LED/Micro LED chips are directly mounted on a glass plate, and the glass plate is fragile and cannot be directly fixedly connected with a box base, so that the glass plate is required to be adhered to an aluminum frame through double faced adhesive tape, mounting holes and first connectors matched with the box base are formed in the aluminum frame, and then the glass plate and the box base are assembled to form a complete splicing box. The connection mode of the aluminum frame and the box base is the same as that of the PCB splicing scheme, and the description is not repeated here.
In order to realize enough splicing precision to ensure the splicing effect, when the display module is spliced on the box base, the outer peripheral end surfaces of the aluminum frame and the glass plate in the display module are tightly abutted against and matched with the outer peripheral end surfaces of the aluminum frame and the glass plate in the adjacent display module and the inner wall surface of the frame of the splicing box, and the display module has insufficient adjustment space, cannot be subjected to further fine adjustment and affects the final splicing effect; in addition, the tight fit also can lead to the display module comparatively difficult when assembling and dismantling, produces the collision of display module assembly easily, has especially increased the risk that glass board damaged, influences the product yield.
In view of this, the embodiment of the application provides a display module and a tiled display device, in the display module, a design of 'upper width and lower width' is adopted in a supporting frame, that is, a part of the supporting frame, which is close to a display panel, is aligned with the peripheral end face of the display panel, and a part of the supporting frame, which is far from the display panel, is narrowed; the upper width can ensure that the joint between the display modules does not change relative to the display modules in the related art, the spliced display effect is ensured, the lower width can ensure that the display modules are easy to take off and place on the box body base when the display modules are assembled and disassembled, meanwhile, the collision phenomenon of the display modules is not easy to occur, the fragile glass plate is protected, and the assembly yield is ensured; in addition, the design of 'down narrow' enables the display module to have a certain fine tuning space relative to the related art, so that when the joint effect is found to be poor, the seamless joint effect can be achieved through fine tuning.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The embodiment of the application provides a splice display device, this splice display device includes at least one splice box, and every splice box includes the box base and can with at least one display module assembly of this box base equipment.
Fig. 1 is a schematic structural diagram of a display module provided in an embodiment of the present application, and fig. 2 is an exploded view of a display module provided in an embodiment of the present application, as shown in fig. 1 and fig. 2, the display module 8 includes a transparent cover plate 1, a transparent optical adhesive 2, a display panel 10 and an aluminum frame 4. The transparent cover plate 1 has a transparent and rigid plate-like structure, and can protect the display panel 10, and may be made of glass, quartz, plastic, or other materials, for example, in this embodiment, the transparent cover plate 1 is a glass plate. One side of the transparent cover plate 1 is provided with a transparent optical adhesive 2 (Optically Clear Adhesive, abbreviated OCA), and the transparent optical adhesive 2 is used for connecting the display panel 10.
The display panel 10 includes an array substrate 3 and pixel units, and the array substrate 3 includes a substrate and a driving circuit disposed at one side of the substrate. In this embodiment, the array substrate 3 is a transparent structure, the substrate is a transparent plate-like structure with a certain rigidity, and may be made of glass, quartz, plastic, or other materials, for example, the substrate is a glass plate in this embodiment. The conductor material, the insulating material and the semiconductor material in the array substrate 3 may be made of transparent materials, for example, the conductor material may be Indium Tin Oxide (ITO), the insulating material may be silicon nitride (SiNx), the semiconductor material may be amorphous silicon or Indium Gallium Zinc Oxide (IGZO), etc. The substrate in the array substrate 3 is attached to the transparent cover plate 1 through the transparent optical cement 2.
The display panel 10 includes a plurality of pixel units arranged in an array, and the driving circuit includes thin film transistors disposed corresponding to the pixel units. The pixel units are arranged on one side of the substrate with the driving circuit, and each pixel unit is connected with the corresponding thin film transistor. Each pixel unit includes a subpixel capable of emitting a single color, and illustratively, the pixel unit may include an R subpixel for generating red, a G subpixel for generating green, and a B subpixel for generating blue. By adjusting the ratio of red, green and blue, a color display is realized.
In the display panel 10 provided in the embodiment of the present application, the pixel unit may be an LED (Light-Emitting Diode), a sub-millimeter Light-Emitting Diode (Mini LED), a Micro Light-Emitting Diode (Micro LED), a liquid crystal pixel unit (Liquid Crystal Display, abbreviated LCD), an Organic Light-Emitting Diode (abbreviated OLED), or the like.
In this embodiment, the pixel unit is a Mini LED, and the Mini LED chip may be soldered on the substrate of the array substrate 3 through an SMT (Surface Mounted Technology, surface mount technology) process. During installation, one side of the array substrate 3, which is far away from the Mini LED chip, is attached to the transparent cover plate 1. In order to achieve a good display effect, the display panel 10 may also be blackened.
Because the transparent cover plate 1 is a glass plate, the glass is fragile and has a relatively high difficulty when being directly connected with the box base 17 (refer to fig. 4 and 5), and therefore, the display panel 10 further comprises a supporting frame, and the supporting frame can be made of light metal or plastic with relatively high hardness. In this embodiment, the supporting frame is an aluminum frame 4 made of metal aluminum, and the aluminum frame 4 is mounted on a side of the display panel 10 away from the substrate via a double sided adhesive tape 9. In the present embodiment, the double-sided tape 9 is described as an example, but the embodiment is not limited thereto, and the double-sided tape 9 may be replaced with any adhesive that can adhere the aluminum frame 4 and the display panel 10.
The aluminum frame 4 is provided with a first circuit board 6, a first connecting piece and a positioning pin 7, the first circuit board 6 is electrically connected with the flexible circuit board, and the other end of the flexible circuit board is bound with the array substrate 3. The first circuit board 6 is also provided with a first plug connector. The positioning pins 7 stand on the aluminum frame 4, and may be provided in one or a plurality of positions.
Fig. 3 is a schematic structural view of a box base provided in an embodiment of the present application, fig. 4 is a schematic structural view of a display module and a box base provided in an embodiment of the present application, fig. 5 is a schematic mating view of a plurality of display modules and a box base provided in an embodiment of the present application, and as shown in fig. 3 to 5, the box base 17 includes a base body 11, a positioning hole 13, a second circuit board 14, a power supply 15, and a second connecting member; the base body 11 is limited to have an opening mounting cavity 16, a second circuit board 14, a positioning column, a power supply 15 and a second connecting piece are disposed in the mounting cavity 16, the power supply 15 is connected with the second circuit board 14, and the second circuit board 14 is provided with a second plug connector.
When the display module 8 is assembled with the box base 17, the positioning pins 7 extend into the positioning holes 13, so that the positioning between the display module 8 and the box base 17 is realized. The positioning pin 7 adopts a structure with adjustable height, so that the installation precision and the splicing precision of the display module 8 can be finely adjusted by adjusting the height of the positioning pin 7.
The second plug connector is matched with the second plug connector in a plug manner, and the power supply 15 is transmitted to the display panel 10 through the second circuit board 14, the second plug connector, the first circuit board 6 and the flexible circuit board, so that power supply to the display panel 10 is realized. In addition, the driving signal of the display panel 10 may also be transmitted to the display panel 10 through the second circuit board 14, the second plug connector, the first circuit board 6 and the flexible circuit board, so as to realize display control of the display panel 10.
The pluggable cooperation between the first plug connector and the second plug connector can enable the assembly of the display module 8 and the box base 17 to be more convenient.
The first connecting piece is detachably connected with the second connecting piece, so that fixation between the display module 8 and the box base 17 is achieved, in the embodiment, the first connecting piece is arranged on the aluminum frame 4 and is magnetically attracted to the nut 5, the second connecting piece is arranged on the magnetic attraction column 12 of the base body 11, and the direct combination of the display module 8 and the box base 17 is facilitated through the magnetic attraction cooperation of the magnetic attraction nut 5 and the magnetic attraction column 12. In other embodiments, the first and second connectors may be replaced with other removable connectors, such as vacuum cups, threaded connectors, snaps, or the like.
Referring to fig. 5, 2×4 display modules 8 are disposed on one box base 17, in this embodiment, mounting positions corresponding to the display modules 8 one by one are disposed on the box base 17, and each mounting position is provided with a structure matching with the display module 8.
Fig. 6 is a schematic structural view of an aluminum frame provided in an embodiment of the present application, fig. 7 is a schematic structural view of an aluminum frame provided in an embodiment of the present application, fig. 8 is a schematic structural view of an aluminum frame provided in an embodiment of the present application and a display panel, fig. 9 is a schematic splicing view between display modules provided in an embodiment of the present application, and as shown in fig. 6 to 9, in a display module 8 provided in an embodiment of the present application, an aluminum frame 4 is a rectangular plate-shaped structure, including a first plane 18 and a second plane 23 that are oppositely arranged along a first direction, and a peripheral side 21 that connects peripheral edges of the first plane 18 and the second plane 23. The first plane 18 is a bonding surface bonded to the display panel 10, and the first direction is perpendicular to the first plane 18. The second plane 23 is remote from the display panel 10 relative to the first plane 18. Here, the first direction, i.e., the stacking direction of the display panel 10 and the aluminum frame 4, i.e., the direction perpendicular to the display plane of the display panel 10.
In projection in the first direction to the display panel 10, the first plane 18 coincides with the peripheral edge of the display panel 10, and the second plane 23 falls into the first plane 18. The peripheral side surface 21 includes a first connection surface 24 and a second connection surface 25 in a first direction, the first connection surface 24 connecting the first plane 18 and being disposed parallel to the first direction, the second connection surface 25 connecting the first connection surface 24 and the second plane 23.
As can be seen from the above description, the first plane 18 of the aluminum frame 4 is aligned with the peripheral edge of the display panel 10, and the first connection surface 24 is perpendicular to the first plane 18 and is also aligned with the peripheral edge of the display panel 10; the second plane 23 is narrowed relative to the first plane 18 to form a "wide-top and narrow-bottom" configuration.
The display module 8 adopts the aluminum frame 4 provided by the embodiment, so that the first connecting surface 24 in the aluminum frame 4 can ensure that the joint between the display modules 8 is unchanged relative to the display module 8 in the related art, and the spliced display effect is ensured; the second connection surface 25 can ensure that the display module 8 is easy to be taken down from the box base 17 and placed on the box base when the display module 8 is assembled and disassembled, and meanwhile, the collision phenomenon of the display module 8 is not easy to occur, so that fragile glass plates are protected, and the assembly yield is ensured.
In addition, since the second connection surface 25 is not in close contact with other surfaces, the assembled display module 8 has a certain fine tuning space, so that when the joint effect is found to be poor, the seamless joint effect can be achieved through fine tuning.
In order to ensure the splicing accuracy, the plane of the aluminum frame 4 matched with the display panel 10 and the plane matched with other display modules 8 need to be finished, namely, the first plane 18 and the first connecting surface 24 need to be finished, wherein the finish machining means that the flatness of the machined surface does not exceed 0.1mm after machining. It will be appreciated that the finish machining is more difficult than the rough machining, the cost is higher, the area of the finish machining is larger, and the overall cost is higher, so that the finish machining is only performed on the first plane 18 and the first connection surface 24, and the rough machining is performed on the second connection surface 25 and the second plane 23 on the premise of not affecting the splicing effect, thereby being beneficial to reducing the machining difficulty and the machining cost. The rough machining is not limited in flatness with respect to the finish machining.
As described above, the smaller the finish machining area is, the lower the overall cost is, and the specific design value needs to consider the assembly precision at the assembly joint; for a glass-based spliced product, in order to prevent the display panel 10 from being invalid due to collision between the edge of a glass plate and the adjacent aluminum frame 4, the gap between the display panels 10 needs to be controlled within 100um during splicing; if all the aluminum frames 4 are roughly machined, the appearance tolerance of the aluminum frames 4 can only be controlled to be 0.5mm, when the aluminum frames 4 are spliced under the condition, the probability that the glass plates collide with the adjacent aluminum frames 4 is very high, and the display panel 10 is invalid due to the very high probability, so that the splicing yield is affected.
In an actual product verification test, for an application scene of the display panel 10 with the thickness of 0.7mm, when the design value a of the extension length of the second connecting surface 25 along the first direction is 2 to 3mm, the collision occurrence rate is a/32, and when a is less than 2mm, the collision occurrence rate is 2/32; therefore, considering the cost and yield issues in combination, the extension length of the second connection surface 25 along the first direction may be selected to be 2mm.
In addition, in order to realize weight reduction of the aluminum frame 4, the aluminum frame 4 is provided with a hollowed-out portion, and a weight reduction groove 22 is formed in the second connecting surface 25. The weight reduction grooves 22 are not arranged at the two extending ends and the middle position of the second connecting surface 25 at a certain distance in advance, so that the strength of the aluminum frame is not influenced while the weight is reduced.
When the display modules 8 are assembled, the surface of the display panel 10 is usually sucked by using a vacuum chuck, each display module 8 is assembled in the box base 17 in a spliced manner, if the assembly is improper, the display modules 8 are taken down from the box base 17 by using the vacuum chuck, and are repositioned after the position is adjusted, so that the splicing assembly of the whole spliced box body is repeatedly completed; as described above, the display panel 10 is connected with the supporting frame through the adhesive, so that the adhesive force of the adhesive between the display panel 10 and the aluminum frame 4 is easily damaged in the process of repeated assembly and disassembly, which causes the offset of the display panel 10, and the peeling and other defects of the adhesive, which affect the structural firmness of the display module 8.
In view of this, in the display module 8 and the tiled display device provided in the embodiments of the present application, the magnetic suction cup is used to complete the capturing and placing of the display module 8, and accordingly, the support frame is provided with the magnetic suction piece matched with the magnetic suction cup, and the capturing and placing of the display module 8 is achieved through the magnetic attraction between the magnetic suction cup and the magnetic suction piece; by means of the design, acting force generated by the magnetic suction disc directly acts on the magnetic suction piece on the supporting frame, adhesive between the display panel 10 and the supporting frame cannot be pulled, reliability of connection between the aluminum frame 4 and the display panel 10 cannot be affected, and structural stability of the display module 8 is well guaranteed.
With continued reference to fig. 1 to 6, in the present embodiment, the aluminum frame 4 has a rectangular plate structure, and two magnetic pads 19 are symmetrically disposed on two sides of a perpendicular bisector of a long side of the rectangle, and the magnetic pads 19 are fixedly mounted on the aluminum frame 4 through threaded connectors.
The magnetic attraction pad 19 is a sheet-like structure made of a ferromagnetic material, that is, a material that can be attracted by a magnet, and may be iron, cobalt, nickel, or the like, or an alloy thereof, and the sheet-like structure is perpendicular to the first direction. The magnetic attraction pad 19 in the aluminum frame 4 is collectively called a magnetic attraction member.
The magnetic attraction pads 19 are symmetrically arranged relative to the perpendicular bisector, so that the display module 8 can be guaranteed to be attracted to the center of the display module 8 during assembly and disassembly, the uniformity of the attraction force of the display module 8 is guaranteed, the display module 8 cannot incline under the attraction of the magnetic attraction pads, the display module 8 can be matched with the box base 17 in a straight-up and straight-down mode during assembly, and the design is designed in such a way that collision of a glass plate caused by the inclination of the display module 8 can be avoided, the damage risk is reduced, and the yield is guaranteed. On the other hand, the magnetic suction cup is adsorbed at the center of the display module 8, and when the display module 8 is assembled with the box base 17, accurate alignment can be realized, for example, in the embodiment, the accuracy of alignment of the magnetic suction nut, the magnetic suction column, the positioning hole, the positioning pin, the second plug connector, the first plug connector and the like is ensured, the assembly precision between the display module and the box base can be successfully realized by realizing once assembly, and the seamless splicing effect is achieved; and can also improve packaging efficiency, reduce the risk of colliding with.
In the above embodiment, the magnetic attraction piece includes two magnetic attraction pads, and the two magnetic attraction pads are symmetrically disposed at two sides of the perpendicular bisector of the rectangular long side of the aluminum frame, but the embodiment of the application is not limited thereto, for example, the two magnetic attraction pads are symmetrically disposed at two sides of the perpendicular bisector of the rectangular short side of the aluminum frame; for another example, the magnetic attraction member may include one magnetic attraction pad disposed at a central position of the support frame, and for another example, the magnetic attraction member may include a plurality of magnetic attraction pads disposed uniformly around the central position of the support frame. The magnetic attraction piece is not limited to a sheet structure, and can be a plurality of dot structures uniformly distributed on the aluminum frame.
In addition, in a possible implementation manner, the supporting frame can be made of ferromagnetic material, instead of the aluminum frame in the above embodiment, so that the design does not need to separately provide a magnetic attraction pad.
In the tiled display device provided by the embodiment of the application, a plurality of tiled boxes can be further included, and the tiled products can be displayed in different sizes through assembling the tiled boxes.
In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific direction, be configured and operated in the specific direction, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.
In addition, the technical features described above in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.
Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will be within the scope of the present application.
Claims (11)
1. The display device is characterized by comprising at least one spliced box body, wherein the spliced box body comprises at least one display module and a box body base, and the display modules in the spliced box body are spliced and installed on the box body base;
the display module comprises a display panel and a supporting frame, wherein the display panel is arranged on one side of the supporting frame through connecting glue; the support frame comprises a first plane and a second plane which are oppositely arranged along a first direction, and a peripheral side surface connecting peripheral edges of the first plane and the second plane; the first plane is attached to the display panel, the first direction is perpendicular to the first plane, and the second plane is far away from the display panel relative to the first plane;
in a projection of the display panel in the first direction, the first plane coincides with a peripheral edge of the display panel, and the second plane falls into the first plane;
the box body base comprises a base body, a positioning hole, a second circuit board, a power supply and a second connecting piece; the base body is limited to be provided with an opening mounting cavity, the mounting cavity is internally provided with the second circuit board, the positioning column, the power supply and the second connecting piece, the power supply is connected with the second circuit board, and the second circuit board is provided with a second plug connector;
the display panel comprises an array substrate, a pixel unit and a supporting frame, wherein a first circuit board, a first connecting piece and a locating pin are arranged on the supporting frame, the first circuit board is electrically connected with a flexible circuit board, and the other end of the flexible circuit board is bound with the array substrate; the first circuit board is also provided with a first plug connector, the locating pin is vertically arranged on the supporting frame and is matched with the locating hole, and the height of the locating pin is adjustable;
the box body base is provided with mounting positions corresponding to the display modules one by one, each mounting position is provided with a second connecting piece and a second plug connector, the first connecting piece and the second connecting piece are detachably connected, and the first plug connector and the second plug connector can be in plug fit; the first connecting piece is a magnetic attraction nut, and the second connecting piece is a magnetic attraction column for adsorbing the magnetic attraction nut;
the power supply is transmitted to the display panel through the second circuit board, the second plug connector, the first circuit board and the flexible circuit board so as to realize power supply to the display panel; the driving signals of the display panel are transmitted to the display panel through the second circuit board, the second plug connector, the first circuit board and the flexible circuit board, so that display control of the display panel is achieved.
2. The display device according to claim 1, wherein the outer peripheral side surface includes a first connection surface and a second connection surface along the first direction, the first connection surface connecting the first plane and being disposed parallel to the first direction, the second connection surface connecting the first connection surface and the second plane.
3. The display device of claim 2, wherein the first connection surface and the first plane are finished surfaces and the second connection surface is a rough surface.
4. A display device according to claim 3, wherein in the first direction, the thickness of the display panel is 0.7mm, and the extension length of the first connection surface is 2 to 3mm.
5. The display device according to claim 3, wherein the supporting frame is an aluminum frame with hollowed-out portions, and a weight-reducing groove is provided on the second connecting surface.
6. The display device according to any one of claims 1 to 5, wherein the support frame is mounted with a magnetic attraction piece that cooperates with a magnetic attraction suction cup.
7. The display device of claim 6, wherein the magnetic attraction member is a magnetic attraction pad perpendicular to the first direction.
8. The display device according to claim 7, wherein the magnetic member includes the magnetic spacers disposed at a center position of the support frame, and/or includes at least two of the magnetic spacers disposed uniformly around the center position of the support frame.
9. The display device according to claim 7, wherein the support frame has a rectangular plate-like structure, and the magnetic attraction pieces include two magnetic attraction pads symmetrically disposed with respect to a perpendicular bisector of a rectangular side.
10. The display device according to claim 1, wherein the pixel units are arranged in an array on one side of the array substrate, and the pixel units are sub-millimeter light emitting diodes or micro light emitting diodes.
11. The display device of claim 10, wherein the display panel further comprises a transparent cover plate, the array substrate is of a transparent structure, and the transparent cover plate is connected with the array substrate through transparent optical cement; the sub-millimeter light emitting diode or the micron light emitting diode is arranged on one side of the array substrate far away from the transparent optical adhesive.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110675768A (en) * | 2019-11-12 | 2020-01-10 | 深圳创维－Rgb电子有限公司 | LED (light-emitting diode) assembling module |
| CN210896359U (en) * | 2019-12-24 | 2020-06-30 | 深圳帝显高端制造方案解决有限公司 | LED display module |
| CN111833758A (en) * | 2019-04-18 | 2020-10-27 | 群创光电股份有限公司 | Tiled display device |
| CN113470538A (en) * | 2021-06-28 | 2021-10-01 | Tcl华星光电技术有限公司 | Miniature light-emitting diode spliced display screen and preparation method thereof |
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| US6614171B2 (en) * | 2001-01-10 | 2003-09-02 | Eastman Kodak Company | Light-producing display having spaced apart tiles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111833758A (en) * | 2019-04-18 | 2020-10-27 | 群创光电股份有限公司 | Tiled display device |
| CN110675768A (en) * | 2019-11-12 | 2020-01-10 | 深圳创维－Rgb电子有限公司 | LED (light-emitting diode) assembling module |
| CN210896359U (en) * | 2019-12-24 | 2020-06-30 | 深圳帝显高端制造方案解决有限公司 | LED display module |
| CN113470538A (en) * | 2021-06-28 | 2021-10-01 | Tcl华星光电技术有限公司 | Miniature light-emitting diode spliced display screen and preparation method thereof |
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