CN114333618A - Ultrathin flexible transparent LED display screen, manufacturing process thereof and display - Google Patents
Ultrathin flexible transparent LED display screen, manufacturing process thereof and display Download PDFInfo
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Abstract
The invention discloses an ultrathin flexible transparent LED display screen, a manufacturing process thereof and a display, wherein the ultrathin flexible transparent LED display screen comprises a flexible transparent substrate and a light-emitting module, wherein the flexible transparent substrate is provided with three layers, and the three layers of flexible transparent substrates are arranged in a laminated manner; the light emitting module comprises an LED light emitting unit and a driving IC, and the driving IC is used for driving the LED light emitting unit; the light-emitting modules on the three layers of flexible transparent substrates are respectively used for emitting red light, blue light and green light, and the light-emitting modules on the three layers of flexible transparent substrates can be matched to form pixel units of the LED display screen; and each layer of flexible transparent substrate is also provided with a transparent conductive circuit matched with the light-emitting module. The ultrathin flexible transparent LED display screen has the advantages of being light and thin, high in display precision and simple in driving logic.
Description
Technical Field
The invention relates to the technical field of LED display, in particular to an ultrathin flexible transparent LED display screen, a manufacturing process thereof and a display.
Background
In the field of displays, whether LCD panels or miniLED panels, a pixel unit of a screen typically includes R, G, B three sub-pixels (i.e., red, green, and blue sub-pixels), which are respectively illuminated by corresponding R/G/B light emitting units. In the miniLED display screen, R, G, B light-emitting units corresponding to one pixel are collectively called an RGB module.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a structure of an RGB module in a conventional miniLED display panel, which includes not only R/G/B three-color light emitting units, but also driving ICs of the three-color light emitting units. In the RGB module, the driving IC and R, G, B three-color light-emitting units only occupy 1/10 of the entire area of the RGB module, and other areas are wasted in wire bonding, corner bonding, packaging and other plastic molding materials, which results in low pixel density of the miniLED display screen and affects the display effect of the miniLED.
And, because the inside line of walking of RGB module is complicated, also led to simultaneously that power supply and signal circuit on the base plate are very complicated, simultaneously because the volume of RGB module is big, both all do not do benefit to the frivolous design of miniLED display screen.
In addition, in the RGB module shown in fig. 1, one driver IC needs to control R, G, B the on/off and the light emitting brightness of the three light emitting cells simultaneously, which results in a complex driving logic of the driver IC.
Disclosure of Invention
The invention mainly aims to provide an ultrathin flexible transparent LED display screen, and aims to provide an LED display screen which is light, thin, good in display effect and simple in driving logic.
In order to achieve the purpose, the ultrathin flexible transparent LED display screen provided by the invention comprises a flexible transparent substrate and a light-emitting module, wherein the flexible transparent substrate is provided with three layers, and the three layers of flexible transparent substrates are stacked; the light emitting module comprises an LED light emitting unit and a drive IC, and the drive IC is used for driving the LED light emitting unit; wherein the content of the first and second substances,
the light-emitting modules on the three layers of flexible transparent substrates are respectively used for emitting red light, blue light and green light, and the light-emitting modules on the three layers of flexible transparent substrates can be matched to form pixel units of the LED display screen;
and transparent conducting circuits matched with the light-emitting modules are further arranged on each layer of the flexible transparent substrate.
In one embodiment, the LED light emitting units of three emission colors are sequentially alternated in the length direction or the width direction of the substrate and in the length direction or the width direction of the flexible transparent base.
In one embodiment, the driving IC in the light emitting module and the LED light emitting unit are disposed in parallel in a length direction or a width direction of the flexible transparent substrate.
In one embodiment, the driving ICs on the flexible transparent substrate are all located on the same side of the LED light emitting unit, and the driving ICs on the three layers of the flexible transparent substrate are sequentially alternated along the alternating direction of the LED light emitting unit.
In one embodiment, three layers of the light emitting modules on the flexible transparent substrate are arranged on the same side of the flexible transparent substrate.
In one embodiment, the transparent conductive circuit includes a plurality of sets of circuit units, each circuit unit includes a power input line, a ground line and a signal line, the power input line is disposed in parallel with the ground line, and a plurality of light emitting modules are disposed between the power input line and the ground line at intervals, wherein one pole of an LED light emitting unit in each light emitting module is electrically connected to the power input line, the other pole of the LED light emitting unit in each light emitting module is electrically connected to one pole of the driver IC, the other pole of the driver IC is electrically connected to the ground line, and the signal line is disposed between the power input line and the ground line and sequentially connected in series with the driver ICs of the plurality of light emitting modules between the power input line and the ground line.
In one embodiment, the power input lines are arranged in a grid.
In one embodiment, the flexible transparent substrate is made of glass or a transparent polymer substrate; and/or
The transparent conductive circuit is made of metal or a mixture of metal and high molecular substances.
The invention further provides an LED display, which comprises the ultrathin flexible transparent LED display screen.
The invention also provides a manufacturing process of the ultrathin flexible transparent LED display screen, which comprises the following steps:
red, green and blue light-emitting modules are respectively packaged on the three layers of flexible transparent substrates;
and laminating and packaging the three layers of flexible transparent substrates after the light-emitting module is packaged.
In one embodiment, three light emitting modules of red, green and blue are respectively packaged on three layers of flexible transparent substrates, and the method comprises the following steps:
respectively etching corresponding transparent conductive circuits on the three layers of flexible transparent base materials based on a preset circuit design;
arranging LED light-emitting units with corresponding colors on the corresponding flexible transparent substrate;
and inversely installing the driving IC of the LED light-emitting unit on the corresponding flexible transparent substrate.
According to the technical scheme, three LED light-emitting units in the whole RGB module are distributed on three layers of flexible transparent substrates, and the characteristics of transparency of the flexible substrates are utilized, so that the three LED light-emitting units can form a complete pixel unit after the three layers of flexible transparent substrates are laminated, thus the internal circuit of the traditional RGB module is abandoned, and the spaces required by routing, corner jointing, packaging and other plastic molding materials in the RGB module are saved, so that the structure of a conductive circuit on the flexible transparent substrate can be simplified, and the light and thin design of an LED display screen is realized; moreover, after the spaces such as the routing and the connecting angle are saved, the occupied area of one pixel unit is reduced, so that compared with the traditional design, under the same size, more pixels can be accommodated under the LED display screen, and the display precision of the LED display screen can be improved; in addition, the technical scheme of the application also simplifies the driving logic of the driving IC and the distribution logic of the video signal by a mode that one driving IC drives one LED light-emitting unit. Therefore, compared with the traditional miniLED display screen, the LED display screen has the advantages of being light and thin, high in display precision and simple in driving logic.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional RGB module in the background art;
FIG. 2 is a schematic structural diagram of an embodiment of an ultrathin flexible transparent LED display screen according to the present invention;
FIG. 3 is a side view of the ultra-thin flexible transparent LED display screen of the present invention;
FIG. 4 is a schematic view of a part of the structure of the ultrathin flexible transparent LED display screen according to the present invention;
FIG. 5 is a schematic structural diagram of another embodiment of an ultrathin flexible transparent LED display screen according to the present invention;
FIG. 6 is a schematic structural diagram of another embodiment of an ultrathin flexible transparent LED display screen according to the invention;
FIG. 7 is a schematic structural diagram of an ultrathin flexible transparent LED display screen according to yet another embodiment of the invention;
FIG. 8 is a schematic flow chart of an embodiment of a process for manufacturing an ultra-thin flexible transparent LED display screen according to the present invention;
fig. 9 is a schematic flow chart of a manufacturing process of an ultrathin flexible transparent LED display screen according to another embodiment of the present invention.
The reference numbers illustrate:
10. a flexible transparent substrate; 20. a light emitting module; 21. an LED light emitting unit; 22. a driver IC; 30. a transparent conductive circuit; 31. a power input line; 32. a ground line; 33. signal line
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an ultrathin flexible transparent LED display screen.
In the embodiment of the present invention, as shown in fig. 2 to 4, the ultra-thin flexible transparent LED display panel includes a flexible transparent substrate 10 and a light emitting module 20.
Specifically, in the technical scheme of this application, the ultra-thin flexible transparent LED display screen includes three layers of flexible transparent base 10 that the range upon range of setting, and wherein, every layer of flexible transparent base 10 all can regard as the carrier of light emitting module 20 and conducting wire.
Specifically, in the present embodiment, the material of the flexible transparent substrate 10 may be glass or a transparent polymer substrate. The glass substrate includes, but is not limited to, soda-silica glass, soda-lime-silica glass, potash-silica glass, and alumino-silica glass. The transparent polymer substrate includes, but is not limited to, PET (Polyethylene terephthalate, Chinese name), PMMA (polymethyl methacrylate), PI (polyimide), PC (Polycarbonate ). The flexible transparent substrate 10 is made of a material with flexibility and transparency, so that the transparency of the LED display screen is improved, and the LED display screen can be bent freely.
Optionally, the flexible transparent substrate 10 has a light transmittance of greater than 70%, and preferably a light transmittance of greater than 90%. Illustratively, the light transmittance of the flexible transparent substrate may be 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%. It can be understood that the transparent flexible substrate with the light transmittance of more than 70% or even more than 90% is selected, which is beneficial to improving the transparency of the LED display screen.
Specifically, in the present embodiment, the light emitting module 20 includes an LED light emitting unit 21 and a driving IC22, and the driving IC22 of the light emitting module 20 is only used for driving the LED light emitting unit 21 of the light emitting module 20, that is, a driving IC22 correspondingly drives an LED light emitting unit 21. With this arrangement, the driving logic of the driving IC22 in the light emitting module 20 can be simplified, and the distribution logic of the video signal received by the LED display screen can be simplified.
In this embodiment, each layer of the flexible transparent substrate 10 is provided with a plurality of light emitting modules 20, the light emitting modules 20 on the three layers of the flexible transparent substrates 10 are respectively used for emitting red light, blue light and green light, and the light emitting modules 20 on the three layers of the flexible transparent substrates 10 can cooperate to form a pixel unit of the LED display screen. In particular, it is understood that two layers of flexible transparent substrates 10 separate the three layers of light emitting modules 20. Due to the transparent characteristic of the flexible transparent substrate 10, the light of the LED light emitting unit 21 in the light emitting module 20 can pass through the flexible transparent substrate 10, so that the three layers of light emitting modules 20 can cooperate to form one pixel unit of the LED display screen on a plane.
In the technical scheme of the application, three LED light-emitting units 21 in a whole RGB module are distributed on three layers of flexible transparent substrates 10, and the characteristics of transparency of the flexible substrates 10a are utilized to enable the three LED light-emitting units 21 to form a complete pixel unit after the three layers of flexible transparent substrates 10 are stacked.
Specifically, if the three layers of flexible transparent substrates 10 from top to bottom are the first substrate, the second substrate, and the third substrate, respectively, then all the light emitting modules 20 on the first substrate can only emit green light (i.e., green light emitting modules), all the light emitting modules 20 on the second substrate can only emit red light (i.e., red light emitting modules), and all the light emitting modules 20 on the third substrate can only emit blue light (i.e., blue light emitting modules). After the three layers of flexible transparent substrates 10 are stacked and packaged together, the LED light emitting units 21 on the three layers of flexible transparent substrates 10 can be matched with each other to form each pixel on the LED display screen.
Through the design, the three light-emitting units of the RGB module located in the same plane are separated into the three LED light-emitting units 21 in the vertical space, and the three LED light-emitting units 21 in the vertical space are matched again to form a pixel unit by utilizing the transparent characteristic of the flexible transparent substrate 10. The stacked design abandons the internal circuit of the traditional RGB module, and saves the space required by routing, corner jointing, packaging and other plastic molding materials in the RGB module, thereby simplifying the conductive circuit structure on the flexible transparent substrate 10, realizing the light and thin design of the LED display screen and being beneficial to improving the bending performance of the LED display screen. In addition, after spaces such as above-mentioned routing, connecing angle have been practiced thrift, the area occupied of a pixel unit reduces, consequently compares in traditional design, under the same size, can hold more pixels under the LED display screen of this application, and then can improve the display accuracy of LED display screen.
It should be noted that, since the light emitting pattern on each layer of the flexible transparent substrate 10 emits only monochromatic light, the control logic of the driver IC22 and the distribution logic of the video signal can be further simplified.
Further, each layer of the flexible transparent substrate 10 is further provided with a transparent conductive circuit 30 matched with the light emitting module 20, and the transparent conductive circuit 30 can supply power to each light emitting module 20 and transmit a specific electrical signal (e.g., a voltage signal) to each light emitting module 20. In addition, the transparent conductive trace 30 may also electrically connect the driving IC22 in the light emitting module 20 and the LED light emitting unit 21. It should be noted that, on the premise of avoiding the light emitting path of the LED light emitting unit 21, the projections of the transparent conductive traces 30 on the three layers of flexible transparent substrates 10 may overlap each other.
From the above, the ultrathin flexible transparent LED display screen of the technical scheme of the application has the advantages of being light and thin, high in display precision and simple in driving logic.
Optionally, the material of the transparent conductive circuit 30 is metal or a mixture of metal and a polymer substance.
Specifically, the metal includes pure metals and metal alloys, wherein the pure metals include, but are not limited to, nickel, titanium, chromium, copper, and iron. The alloy can be an alloy of at least two metals of nickel, titanium, chromium, copper and iron. The high molecular substance includes, but is not limited to, non-volatile acrylic resin, non-volatile epoxy-acrylic resin, modified products of any of the three, silicone, and solvent-free thermoplastic resin. Exemplary, solvent-free thermoplastic resins include, but are not limited to, hot melt adhesives, polyphenylene sulfide (PPS), Polysulfones (PSU), Polysulfones (PES), polyether ether ketone (PEEK), aromatic polyester Liquid Crystal Polymers (LCP), Polyetherimides (PEI), Polyamideimides (PAI), Polyacetals (POM), chinlon (nylon) (PA), poly (propylene carbonate) (PC), polybutylene terephthalate (PBT), polyethylene terephthalate (dacron) (PET), polyphenylene oxides (polyoxy-xylene, PPE, PPO), ABS resins (ABS), styrene-acryl-acrylonitrile (ASA), Polystyrene (PS), polymethyl methacrylate (PMMA), styrene copolymers (MS), Cellulose Acetate (CA), Thermoplastic Polyurethane (TPU), thermoplastic polyester elastomers (TPEE), styrenic elastomers (TPS), and the like, Nylon 12 elastomer (PAE), Polytetrafluoroethylene (PTFE), vinylon (vinylon), polypropylene (PP), Polyethylene (PE), ethylene/vinyl acetate copolymer (EVA), polyvinyl chloride (PVC), and the like.
In one embodiment, the LED light emitting units 21 of three emission colors are sequentially alternated along the length direction of the flexible transparent substrate 10, that is, in the LED display screen of the present application, the RGB light emitting units are linearly arranged. For example, after the three layers of flexible transparent substrates 10 packaged with the light emitting modules 20 are packaged as a whole, the LED light emitting units 21 are arranged in the manner of green LED light emitting units 21, red LED light emitting units 21, blue LED light emitting units 21, green LED light emitting units 21, and red LED light emitting units 21 … … in the length direction of the flexible transparent substrates 10.
It should be noted that, according to different design requirements of the LED display screen, in other embodiments of the present application, the LED light emitting units 21 on the three layers of flexible transparent substrates 10 may also be sequentially alternated in the width direction of the flexible transparent substrate 10.
It can be understood that the LED light emitting units 21 of three colors are arranged in the length direction or the width direction alternately, so that the arrangement of the light emitting modules 20 can be simplified, the structural design of the transparent conductive circuit can be simplified, and the production cost of the LED display screen can be reduced. Of course, the design of the present application is not limited thereto, and in other embodiments, the LED light emitting units 21 on the three layers of flexible transparent substrates may be arranged in other manners, such as a ring arrangement, a diamond arrangement, and the like.
As shown in fig. 5, in an embodiment, the LED light emitting units 21 on the three layers of flexible transparent substrates 10a may also be overlapped with each other, and in this case, when one pixel is lighted, the three layers of LED light emitting units 21 in one pixel unit are not lighted except for the corresponding LED light emitting unit 21. For example, in the area corresponding to one pixel unit on the LED display screen, three green LED light emitting units 21 are packaged on the first substrate, and three red LED light emitting units 21 and three blue LED light emitting units 21 are packaged on two sides of the second substrate respectively. When the pixel unit is turned on, only one of the three green LED light-emitting units 21 on the first substrate is turned on, and similarly, only one of the three red LED light-emitting units 21 and only one of the three blue LED light-emitting units on the second substrate are turned on, and the turned-on LED light-emitting units 21 of the three colors are staggered.
In one embodiment, the driving IC22 in the light emitting module 20 is disposed in parallel with the LED light emitting unit 21 in the length direction or the width direction of the flexible transparent substrate 10. This configuration is advantageous for simplifying the arrangement of the light emitting modules 20 on the flexible transparent substrate 10 and for simplifying the design of the conductive traces on the flexible transparent substrate 10.
Further, in one embodiment, the driving ICs 22 on the flexible transparent substrate 10 are all located on the same side of the LED lighting unit 21, and the driving ICs 22 on the two layers of flexible transparent substrates 10 are sequentially alternated along the alternating direction of the LED lighting unit 21. That is, the driving IC22 is not disposed on one side of the LED light-emitting units 21 in the arrangement direction, so that the adjacent LED light-emitting units 21 of the same pixel can be made more compact, which further contributes to increasing the pixel density of the LED display panel, so as to improve the display accuracy of the LED display panel.
Of course, the design of the present application is not limited thereto, and in other embodiments, the driving IC22 may be disposed at other positions of the LED lighting unit 21.
As shown in fig. 6 and 7, in some embodiments, the driving ICs 22 may also be disposed in the alternating direction of the LED lighting units 21, and the driving ICs 22 may sequentially alternate with the LED lighting units 21, in which case, the driving ICs 22 on the two layers of flexible transparent substrates 10a may not overlap with each other as shown in fig. 6, or may overlap with each other as shown in fig. 7.
Further, the driving ICs 22 on the three-layered flexible transparent substrate 10 are sequentially alternated in the alternating direction of the LED lighting units 21. That is, the driving IC22 is not disposed on one side of the LED light emitting units 21 in the arrangement direction, so that the adjacent LED light emitting units 21 of the same pixel can be made more compact, which is helpful for increasing the pixel density of the LED display panel to improve the display accuracy of the LED display panel.
Of course, the design of the present application is not limited thereto, and in other embodiments, the driving IC22 may be disposed at other positions of the LED lighting unit 21.
In one embodiment, the light emitting modules 20 on the three-layer flexible transparent substrate 10 are disposed on the same side of the flexible transparent substrate 10. By the design, the packaging process of the three layers of flexible transparent substrates 10 is kept consistent, and the placing directions of the three layers of flexible transparent substrates 10 are consistent during packaging, so that the packaging process of the LED display screen is simplified, and the production cost of the LED display screen is reduced.
In one embodiment, the transparent conductive traces 30 include a plurality of sets of trace units (not labeled), each set electrically connected to a plurality of light emitting modules 20.
Specifically, the circuit unit includes a power input line 31, a ground line 32 and a signal line 33, wherein the power input line 31 is disposed in parallel with the ground line 32, a plurality of light emitting modules 20 are disposed between the power input line 31 and the ground line 32 at intervals, one pole of the LED light emitting unit 21 in the light emitting module 20 is electrically connected to the power input line 31, the other pole of the LED light emitting unit is electrically connected to one pole of the driver IC22, the other pole of the driver IC22 is electrically connected to the ground line 32, and the signal line 33 is disposed between the power input line 31 and the ground line 32 and sequentially connected in series to the driver ICs 22 of the plurality of light emitting modules 20 between the power input line 31 and the ground line 32.
With the above structure, a plurality of light emitting modules 20 may be connected in series through a set of line units to supply power to the light emitting modules 20 or transmit an electrical signal. In one embodiment, the power input lines 31 are arranged in a grid.
It can be understood that, the power input line 31 and the ground line 32 are arranged in a grid shape, which is beneficial to improving the heat dissipation capability of the power input line 31 to ensure the power supply stability of the power input line 31, and is beneficial to reducing the thickness and width of the power input line 31, thereby being beneficial to improving the transparency of the LED display screen. In addition, the power input line 31 with the gridding design is also beneficial to improving the uniformity of power supply so as to improve the display effect of the LED display screen.
The invention further provides an LED display, which includes an ultrathin flexible transparent LED display screen, and the specific structure of the ultrathin flexible transparent LED display screen refers to the above embodiments, and since the LED display adopts all the technical solutions of all the above embodiments, the LED display at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated here.
As shown in fig. 8, the present invention further provides a manufacturing process of the ultrathin flexible transparent LED display screen, which includes the following steps:
and S10, respectively packaging the red, green and blue light-emitting modules on the three layers of flexible transparent substrates.
The red, green and blue light emitting modules refer to light emitted by the LED light emitting units in the light emitting modules as red light, green light and blue light, respectively. For a detailed explanation of the light emitting module, reference may be made to the above-mentioned embodiment of the ultra-thin flexible transparent LED display screen, which is not described herein again.
And S20, laminating and packaging the three layers of flexible transparent substrates after the light emitting module is packaged.
Specifically, after the light emitting module is packaged on the flexible transparent substrate, three layers of flexible transparent substrates can be packaged into a layer of substrate, so as to obtain the screen part of the LED display screen.
For the specific structure of the packaged LED display screen, reference may be made to the above-mentioned embodiment of the ultrathin flexible transparent LED display screen, and details are not described here. The LED display screen obtained by the manufacturing process has the advantages of being light and thin, high in display precision and simple in driving logic.
As shown in fig. 9, in an embodiment, three light emitting modules of red, green and blue are respectively packaged on three layers of flexible transparent substrates, including:
and S11, respectively etching corresponding transparent conductive circuits on the three layers of flexible transparent substrates based on a preset circuit design.
The preset circuit design refers to designing conductive circuits according to the specifications of the produced LED display screen, and the conductive circuits are preset with the installation positions of the light-emitting modules on the flexible transparent substrate. Specifically, the conductive circuit structure may refer to the above embodiment of the ultrathin flexible transparent LED display screen, and is not described herein again.
And S12, arranging LED light-emitting units of corresponding colors on the corresponding flexible transparent substrate.
And the LED light-emitting units corresponding to the designed light-emitting color of each flexible transparent substrate can be deposited at preset positions of the LED light-emitting units on the conductive circuit in a deposition or welding mode.
And S13, inversely installing the driving IC of the LED light-emitting unit on the corresponding flexible transparent substrate.
Specifically, after the LED light emitting units are arranged, the corresponding driving ICs may be flip-chip mounted on the flexible transparent substrate to complete the package of the light emitting module.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an ultra-thin flexible transparent LED display screen which characterized in that includes:
the flexible transparent substrate is provided with three layers, and the three layers are stacked;
the light emitting module comprises an LED light emitting unit and a drive IC (integrated circuit), wherein the drive IC is used for driving the LED light emitting unit; wherein the content of the first and second substances,
the light-emitting modules on the three layers of flexible transparent substrates are respectively used for emitting red light, blue light and green light, and the light-emitting modules on the three layers of flexible transparent substrates can be matched to form pixel units of the LED display screen;
and transparent conducting circuits matched with the light-emitting modules are further arranged on each layer of the flexible transparent substrate.
2. The ultra-thin flexible transparent LED display screen of claim 1, wherein LED light emitting units of three emission colors are sequentially alternated in a length direction or a width direction of the flexible transparent substrate.
3. The ultra-thin flexible transparent LED display screen of claim 2, wherein the driving ICs in the light emitting module and the LED light emitting units are disposed in parallel in a length direction or a width direction of the flexible transparent substrate.
4. The ultra-thin flexible transparent LED display screen of claim 1, wherein the driving ICs on the flexible transparent substrate are all located on the same side of the LED light-emitting units, and the driving ICs on the three layers of the flexible transparent substrate are sequentially alternated along the alternating direction of the LED light-emitting units.
5. The ultra-thin flexible transparent LED display panel of claim 1, wherein the transparent conductive traces comprise a plurality of sets of trace elements, each trace element comprises a power input line, a ground line and a signal line, the power input line is disposed in parallel with the ground line, a plurality of light emitting modules are disposed between the power input line and the ground line at intervals, one pole of each LED light emitting module in the light emitting module is electrically connected to the power input line, the other pole of each LED light emitting module in the light emitting module is electrically connected to one pole of the driving IC, the other pole of the driving IC is electrically connected to the ground line, and the signal line is disposed between the power input line and the ground line and sequentially connects the driving ICs of the plurality of light emitting modules in series between the power input line and the ground line.
6. The ultra-thin flexible transparent LED display screen of claim 5, wherein the power input lines are arranged in a grid.
7. The ultra-thin flexible transparent LED display screen of claim 1,
the flexible transparent substrate is made of glass or a transparent polymer substrate; and/or
The transparent conductive circuit is made of metal or a mixture of metal and high molecular substances.
8. An LED display, characterized in that it comprises an ultra-thin flexible transparent LED display screen according to any one of claims 1 to 7.
9. A manufacturing process of an ultrathin flexible transparent LED display screen is characterized by comprising the following steps:
red, green and blue light-emitting modules are respectively packaged on the three layers of flexible transparent substrates;
and laminating and packaging the three layers of flexible transparent substrates after the light-emitting module is packaged.
10. The process for manufacturing the ultrathin flexible transparent LED display screen according to claim 9, wherein three light emitting modules of red, green and blue are respectively packaged on the three layers of flexible transparent substrates, and the process comprises the following steps:
respectively etching corresponding transparent conductive circuits on the three layers of flexible transparent base materials based on a preset circuit design;
arranging LED light-emitting units with corresponding colors on the corresponding flexible transparent substrate;
and inversely installing the driving IC of the LED light-emitting unit on the corresponding flexible transparent substrate.
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