Micro-LED system capable of selective control

Abstract

The present invention relates to a micro-light emitting diode system capable of selective control, and more specifically to the following technology: a transparent micro-light emitting diode display skin (300) is embedded on the outer surface of any one of a specific device (10), a specific object (20), and a part of the body (30), and a main component part (400) and a remote slave part (500) for controlling the transparent micro-light emitting diode display skin (300) are formed separately or separately on one side of any one of the specific device (10), the specific object (20), and the part of the body (30); in addition, a smart phone (600) is constructed for a user to finally selectively control the transparent micro-light emitting diode display skin (300), and the color of any one of the structures of the specific device (10), the specific object (20), and the part of the body (30) can be selectively changed to match the current state of the user.

Description

Technical Field

[0001] The present invention relates to a selectively controllable micro-light emitting diode system, and more specifically to a technology for embedding a transparent micro-light emitting diode display skin that can be selectively attached on any outer surface of a specific device, a specific object, or a part of the body, thereby presenting the transparent micro-light emitting diode display skin in monochrome or multi-color depending on the situation. Background Art

[0002] Usually, in order to present a unique design on other items and devices such as wigs, clothes, jewelry, and fingernails on the body, for other marks and fingernails, nail polish or another device similar to nail polish and capable of emitting light is attached, thereby highlighting the purpose of the corresponding part.

[0003] In addition, the jewelry includes rings, earrings, necklaces, bracelets, gloves, watches, hairbands, artificial nails, wigs, hats, etc., and the jewelry used as portable items includes umbrellas, parasols, makeup, fans, bags (school bags), handkerchiefs, belts, etc.

[0004] There are cases where LEDs that can emit light independently are used in ordinary jewelry, specific devices, parts of the body, interior decoration items and other devices, but in today's society, when users use a design or a single-color lighting function for a long time, there are many users who feel bored or dissatisfied, and there are many cases of pursuing new designs, but in meeting the requirements of the users, a large economic burden is caused.

[0005] Here, in the case of performing the above-mentioned interior decoration, it is filled with multiple specific devices, specific objects and wallpapers (wallpapers). The specific devices and specific objects can be changed in position as needed when purchased and configured at one time. As for the color, frosted wallpaper is used to fix it on the surface of the specific position and object to be changed. It can be replaced but is not clean and requires a lot of labor. It cannot be deformed after several times and the design cannot be changed by itself. As for the wallpaper, in the case of constituting a wallpaper, the components are embellished to form a unique design, but it is accompanied by a monotonous situation that it can only be used with the limited design.

[0006] Furthermore, in the case of existing jewelry, specific devices, body parts, interior decoration items, and other devices that constitute light-emitting LEDs, the technology is generally presented in a single color. Therefore, in order to present multiple colors, there are problems such as having to have multiple light-emitting diodes (LEDs). In addition, due to the large amount of power loss, it is cumbersome to frequently replace or charge batteries, and the economic efficiency is very low. In addition, there is a problem of large battery consumption.

[0007] Due to this problem, there has been a growing demand for a light emitting system that utilizes micro light emitting diodes that have high power consumption and light brightness. The micro light emitting diodes are applied to various fields and constructed into various articles and devices.

[0008] First, the prior art related to micro light emitting diodes is described.

[0009] Registration No. 10-1926715 (Special) relates to a method for manufacturing a micro-light-emitting diode module, which includes the following steps: a first substrate preparation step, preparing a first substrate; a first electrode layer matrix forming step, forming a first electrode layer matrix on the first substrate; a first conductive composite layer matrix forming step, forming a first conductive composite layer matrix on the first electrode layer matrix; a patterning step, forming a pattern on the first electrode layer matrix and the first conductive composite layer matrix to form a first electrode layer and a first conductive composite layer; and a chip mounting step, mounting a first surface of a micro-light-emitting diode chip on the first conductive composite layer, wherein the chip The mounting step includes the following steps: a hydrophilic-hydrophobic surface forming step, forming a hydrophilic surface or a hydrophobic surface on the first surface or the second surface of a micro-LED wafer or a plurality of said micro-LED chips; a chip arranging step, placing a plurality of said micro-LED chips into a water tank and floating them in a manner of naturally arranging the hydrophilic surface toward the water or the hydrophobic surface toward the water surface; a chip adsorption step, utilizing a vacuum hole formed on a vacuum adsorption plate to adsorb at least one naturally arranged micro-LED chip by vacuum pressure; and a chip mounting step, releasing the vacuum pressure and mounting the adsorbed micro-LED chip onto the first conductive composite layer.

[0010] Registration No. 10-1926714 (Special) relates to a method for manufacturing a micro-light-emitting diode module, which includes the following steps: a first substrate preparation step, preparing a first substrate for forming a first electrode layer; a first conductive glue forming step, forming a first conductive glue on the first electrode layer; a chip mounting step, mounting a first surface of a micro-light-emitting diode chip on the first conductive glue; a second substrate preparation step, preparing a second substrate for forming a second electrode layer; a second conductive glue forming step, forming a second conductive glue on the second surface or the second electrode layer of the micro-light-emitting diode chip; and a second substrate mounting step, flipping the second substrate and mounting the second conductive glue on the micro-light-emitting diode chip on the second surface of the wafer, wherein the chip mounting step includes the following steps: a hydrophilic-hydrophobic surface forming step, forming a hydrophilic surface or a hydrophobic surface on the first surface or the second surface of the micro-LED wafer or a plurality of the micro-LED chips; a chip arranging step, placing a plurality of the micro-LED chips in a water tank and floating them in a manner of arranging the hydrophilic surfaces in the water or arranging the hydrophobic surfaces in the water surface; a chip adsorption step, utilizing the vacuum holes formed in the vacuum adsorption plate to adsorb at least one naturally arranged micro-LED chip by vacuum pressure; and a chip mounting step, releasing the vacuum pressure and mounting the adsorbed micro-LED chip on the first conductive adhesive.

[0011] Registration No. 10-1597707 (Special) relates to a wireless power supply light-emitting system, which includes: a light-emitting element; a primary coil connected to the light-emitting element; a seal, i.e., a bottle cap, connecting the light-emitting element and the primary coil; a secondary coil, separated from the primary coil and corresponding to the primary coil; a bottle opener, having a built-in battery connected to the secondary coil and a wireless charging unit for charging the battery; in addition, when the bottle cap is damaged due to the bottle opener, the primary coil is disconnected and the light emission is interrupted.

[0012] The prior art is centered around improving productivity, shortening time, and saving costs, being easy to electrically or mechanically combine, or realizing a lighting system without a built-in battery or other power source.

[0013] However, the technology generally has the effect of improving the manufacturing process and durability of general micro-LEDs, but as shown in the above description, it is a technology that cannot apply the micro-LED to specific devices, specific objects, parts of the body, etc. where various deformations are required, and it is a technology that cannot meet the user trends such as rapidly changing situations. Summary of the invention

[0014] Technical issues

[0015] The present invention is developed to solve the above-mentioned prior art problems, and its purpose is to provide a micro-light emitting diode system that can be selectively controlled and to accomplish the technical problem. Unlike the monochrome presentation function of the existing general micro-light emitting diode light emitting system, the present invention is easy to be applied to specific devices, specific objects, part of the body, etc. In addition, when applied to the specific devices, specific objects, part of the body, multiple colors can be selectively presented according to non-monochrome and user's operation commands, thereby meeting the requirements of users in the extremely changing modern society.

[0016] Means used to solve problems

[0017] The present invention below comprises, in a light-emitting system, a transparent micro-LED display skin 300, a main component part 400, a remote slave part 500 and a smart phone 600, wherein the transparent micro-LED display skin 300 is a transparent flexible substrate 310 having transparency and flexibility and a semiconductor device layer 320 having micro-LED pixels 330 on the transparent flexible substrate 310, which is transferred and attached to the outer surface of any one of a specific device 10, a specific object 20, and a part of the body 30, and is embedded on the outer surface of the main body part 100, and the main component part 400 is separated from the transparent micro-LED display skin 300 on the outer surface of any one of the specific device 10, the specific object 20, and the part of the body 30, and comprises: a power switch 410, which controls a power supply part 430; a charging port 420, which is used to charge a battery via a USB cable; a power supply part 430, which is controlled by the power switch 410; a battery 440, which stores power charged through the charging port 420; and a power wireless supply part 450, which has a function of supplying power to the power supply part 430. A radio coil for wirelessly supplying power; a short-range wireless communication unit 460 for performing short-range wireless communication with external devices including a smartphone 600 and other devices; a main control unit 470 for controlling the color of the transparent micro-LED display skin 300; the remote slave unit 500 is arranged on the outer surface of any one of the specific device 10, the specific object 20, and the body part 30, and is arranged at a position separated from the main component unit 400 by a certain distance, or is placed or held by the user, and includes: a radio antenna 510 for receiving electric energy generated by the wireless power supply unit 450; a remote control unit 520 for driving and controlling the micro-LED transparent display skin 300; a sending and receiving unit 530 for ultra-short-range remote transmission and reception with the main component unit 400; the smartphone 600 includes an application (APP) for controlling the main control unit 470 or the remote control unit 520 of the main component unit 400 or the remote slave unit 500 through short-range wireless communication with the main component unit 400 and the short-range wireless communication unit 460.

[0018] The main element part 400 and the remote slave part 500 constitute light detection parts 490 and 550 for detecting external brightness. After sensing the external light applied to any one of the specific device 10, the specific object 20, and the part of the body 30, the light is applied to the main control part 470 and the remote control part 520 respectively, and the main control part 470 and the remote control part 520 control the display brightness of the micro light emitting diode transparent display skin 300 according to the applied light.

[0019] The master element part 400 and the slave part 500 constitute the collection part 480, 540 for self-generated energy, and are composed of any one of photoelectric elements, thermoelectric elements, dieser elements, and radio conversion elements, or a combination thereof.

[0020] When the transparent micro-LED display skin 300 is controlled by the APP, the transparent micro-LED display skin 300 is controlled by the main element part 400 or the remote slave part 500 close to the specific transparent micro-LED display skin 300.

[0021] Effects of the Invention

[0022] The selectively controllable micro-LED system of the present invention has the following effects: the micro-LED display skin can be easily attached to a specific device, a specific object, a part of the body, etc., and can be applied to various fields, thereby providing diversity of use. In addition, it can be easily controlled by the user's hand-held smartphone, thereby providing convenience in use. Depending on the purpose of use, various colors and flashes can be easily changed as a whole or in part to immediately respond to the situation on the scene, thereby arousing the user's interest and satisfaction. Furthermore, it can be used for a long time through low-power and rechargeable batteries and self-supplied power. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The accompanying drawings are for showing preferred embodiments of the present invention;

[0024] Figure 2 The accompanying drawings are for showing preferred embodiments of the present invention;

[0025] Figure 3 Figures showing the transparent micro-LED display skin of the present invention;

[0026] Figure 4 A diagram showing a preferred embodiment of the main element portion of the present invention;

[0027] Figure 5 It is a diagram showing the structure of a preferred embodiment of the remote slave unit of the present invention.

[0028] Description of Reference Numerals

[0029] 10: Specific device 20: Specific item 30: Body part

[0030] 300: Transparent micro-LEDs to show skin

[0031] 310: Transparent flexible substrate 320: Semiconductor device layer

[0032] 330: Micro LED Pixels

[0033] 331: positive electrode layer 332: transparent conductive layer

[0034] 333: transparent p-electrode layer 334: p-GaN layer

[0035] 335: Active layer 336: n-Gan layer

[0036] 337: transparent n-electrode layer 338: transparent insulating layer

[0037] 400: Main component

[0038] 410: power switch 420: charging port 430: power supply unit

[0039] 440: Battery 450: Power wireless supply unit

[0040] 460: Short-range wireless communication unit

[0041] 470: Main control unit 480: Collection unit

[0042] 490: Light detection unit

[0043] 500: Remote slave

[0044] 510: Radio antenna 520: Remote control unit

[0045] 530: Transmitting and receiving unit

[0046] 540: Collection unit 550: Light detection unit

[0047] 600: Smartphone DETAILED DESCRIPTION

[0048] The present invention provides a selectively controllable micro-light emitting diode system, in which a transparent micro-light emitting diode display skin that can be selectively attached is embedded on the outer surface of a specific device, a specific object, a part of the body, etc., and the transparent micro-light emitting diode display skin is made to appear in monochrome or multi-color depending on the situation.

[0049] Hereinafter, the preferred embodiments of the present invention for achieving the above-mentioned object will be described with reference to the accompanying drawings. Figures 1 to 5 The following explanation is given.

[0050] First, the present invention selectively embeds a transparent micro-light emitting diode display skin 300 in any one of a specific device 10, a specific object 20, and a part of the body 30, and forms a main component part 400 and a remote slave part 500 at a position separated from the transparent micro-light emitting diode display skin 300 on one side of the specific device 10, the specific object 20, and the part of the body 30, and selectively controls the main component part 400 and the remote slave part 500 by a smart phone 600, so that different uses can be performed according to the user's use purpose and purpose.

[0051] for Figure 1 For example, a wig is shown as an embodiment of a specific article 20. For a wig, a transparent micro-display skin 300 can be embedded in one side of the main body in whole or in part, and a transparent micro-display skin 300 can be embedded in the outer surface of the hair part constituting the wig in whole or in part. In the present invention, the transparent micro-display skin 300 is embedded in the surface of the hair part (artificial hair) as a whole.

[0052] First, for the specific device 10, it is all devices that can be mechanically operated, such as general electronic products, for example, all devices composed of wardrobes, televisions, computers, cars, motorcycles, etc. For the specific items 20, rings, necklaces, earrings, hairbands, hats, shoes, wigs, gloves, bracelets, watches, umbrellas, belts, parasols, makeup, fans, bags, towels, etc. are taken as examples; for the body part 30, fingernails, toenails, eyebrows, calves, forearms, etc. are taken as examples. Figure 2 In the figure, a ring, a necklace, a wig, and a school bag are shown as specific items 20, a television is shown as a specific device, and a fingernail is shown as a body part 30.

[0053] In other words, the transparent micro-LED display skin 300 of the present invention can be selectively embedded in any outer surface of the specific device 10, specific object 20, or body part 30 exemplified above, and can be conveniently used in various fields.

[0054] The micro-light emitting diode system of the present invention is applicable to various fields. For example, in the interior decoration of a house where a newlywed couple lives, there is no need to spend a lot of money on additional interior furniture for various interior key points of the house. By utilizing the micro-light emitting diode system of the present invention, the interior design (interior decoration) can be selectively changed, and the interior can be used in a matching manner according to the situation.

[0055] Generally speaking, when a person decorates an apartment, a house, an office, etc. once, it is difficult to change the interior decoration before moving. When the micro-LED display system of the present invention is applied, not only can a simple transformation be performed, but also an effect can be felt as if a new design is made every day. That is, in the case of decorating the interior, the micro-LED display skin 300 of the present invention is formed on the surface of the wallpaper by the specific article 10, the specific device 20, and the wallpaper, and various forms of design can be presented. In addition, in the case of the micro-LED display skin 300 of the present invention, in the case of not simply presenting colors but outputting images like a TV screen, and being formed on the indoor wall surface, it is used similarly to a wall-mounted TV. In the case of forming the micro-LED display skin 300 on the upper wall surface of a bed with bedding, it has the effect of watching TV before going to bed. In addition, in the case of forming the micro-LED display skin 300 in the entire indoor space, it has the effect of self-luminescence even without having another light-emitting device (lighting, etc.).

[0056] Furthermore, in the case of the specific item 20 and the body part 30, the same design, color, and pattern are not presented every day, but can be selectively presented at the time and position required by the user every day, every hour, every second, etc., which can also meet the user's requirements. In the specific item 20, for example Figure 2 As shown in the display, when applied to corresponding jewelry, the color and design of the jewelry can be selectively changed, and various presentations can be made. When applied to rings, necklaces, bracelets, etc., it has the effect of depicting the corresponding jewelry.

[0057] Furthermore, when the part 30 of the body is applied to fingernails, toenails, forearms, legs, etc., it is very convenient to use because young users need to continuously change the color.

[0058] The transparent micro-LED display skin 300 is a core component of the present invention, such as Figure 3 As shown, a transparent flexible substrate 310 having transparency and flexibility and a semiconductor device layer 320 having micro light emitting diode pixels 330 on the transparent flexible substrate 310 are transferred and attached, and embedded in any surface of the specific device 10, the specific object 20, or the body part 30.

[0059] The micro light emitting diode display is a display screen in which ultra-small light emitting diode particles of 5 to 100 μm (one hundred thousandth of a centimeter) are collaged on a substrate (the transparent substrate in the present invention). The LED chips themselves are used as pixels and are suitable for presenting flexible or rollable images. Compared with OLED, it consumes very little power, so it can be used for a long time. In addition, compared with existing OLEDs, it is excellent in illumination, color, and power efficiency.

[0060] The transparent micro-LED display skin 300 as described above is embedded and attached to any surface of a specific device 10, a specific object 20, or a part of the body 30. The transparent micro-LED display skin 300 uses a transparent flexible substrate 310 that is completely transparent and flexible, so that even if the micro-LED display screen is not in operation, any structure of the specific device 10, the specific object 20, or the part of the body 30 can directly perform its own function, and the structure is such that the pixel of the micro-LED chip, namely the micro-LED pixel 330, has maximum transparency.

[0061] In addition, the semiconductor device layer 320 having a large number of micro-LED pixels 330 as a micro-pn diode layer is transplanted onto the transparent flexible substrate 310 by means of micro-transfer printing technology to form the transparent micro-LED display skin 300 of the present invention. At this time, preferably, when performing the transfer printing technology, more than ten thousand micro-LED pixels 330 are transferred and attached to the transparent flexible substrate 310 using roller transfer technology.

[0062] After the micro LED pixels 330 are prepared on a native substrate, they are transfer-printed onto the transparent flexible substrate 310 , and then the native substrate and unnecessary parts are removed.

[0063] The transparent flexible substrate 310 is transparent and flexible, and has a thickness selected from a range of 5-10 μm, 10-50 μm, 50-100 μm, 100-200 μm, 200-500 μm, 0.5-1 mm, 1-5 mm, and 5-10 mm.

[0064] That is, Figure 3 As shown, the transparent micro-LED display skin 300 is formed by attaching a semiconductor device layer 320 having micro-LED pixels 330 on a transparent flexible substrate 310 which is entirely transparent and flexible.

[0065] The micro-LED pixels 330 of the semiconductor device layer 320 are composed of a positive electrode layer 331, a transparent conductive layer 332, a transparent p-electrode layer 333, a p-GaN layer 334, an active layer 335, an n-GaN layer 336 and an upper transparent n-electrode layer 337, and a transparent insulating layer 338 is formed between each micro-LED 330. The micro-LED pixels 330 formed in the semiconductor device layer 320 are respectively formed as pn diode layers, and are composed of a compound semiconductor having a band gap corresponding to a specific region in the spectrum, for example, a III-V group nitride material, that is, gallium nitride (GaN).

[0066] The p-electrode layer (333) is used for power supply, and is formed of oxides including Al, Ga, Ag, Sn, In, Zn, Co, Ni, and Au with a transmittance of more than 70%. The positive electrode layer 331 is a circuit pattern or a bump, a conductive adhesive layer, and the transparent n-electrode layer 337 is conductive. The positive electrode layer 331 is selected from the group of silver and nickel with reflectivity relative to the visible spectrum to form a potential reflective mirror layer.

[0067] Furthermore, the present invention arranges three elements having red, green and blue colors, namely, micro-LED panels, so that the transparent micro-LED display skin 300 can achieve full color.

[0068] Here, when the transparent micro-LED display skin 300 is controlled by the APP, the transparent micro-LED display skin 300 is controlled by the main element part 400 or the remote slave part 500 close to the specific transparent micro-LED display skin 300 .

[0069] Furthermore, the transparent micro-LED display skin 300 is composed of the outer surface of any one of the specific device 10, the specific object 20, and the body part 30 in whole or in part, and presents multiple colors according to the control of the smartphone 600 below.

[0070] In addition, the main element portion 400 is as follows Figure 4As shown, it includes: a power switch 410, which is formed on the base plate 100 and controls the power supply unit 430; a charging port 420, which charges the battery through a USB cable; the power supply unit 430, which is controlled by the power switch 410; a battery 440, which stores the power charged through the charging port 420; a power wireless supply unit 450, which has a radio coil for wirelessly supplying power to the power supply unit 430; a short-range wireless communication unit 460, which is used for short-range wireless communication with external devices including a smartphone 600 and other devices; a main control unit 470, which executes control for displaying the color presentation of the skin 300 on a transparent micro-light-emitting diode formed in any one of the specific device 10, the specific object 20, and the part of the body 30; an energy collection unit 480, which is used to self-generate energy; and a light detection unit 490, which is used to detect the external brightness of any structure of the specific device 10, the specific object 20, and the part of the body 30.

[0071] Preferably, the IC chip of the main control unit 470 built into any one of the specific device 10, the specific object 20, and a part of the body is implemented by an application specific integrated circuit (ASIC), and the radio and energy collection unit 480 uses solar cells (photovoltaic) to supply energy.

[0072] In addition, the remote slave unit 500 is as follows Figure 5 As shown in the display, the remote slave unit 500 that wirelessly receives the power supplied from the main component unit 400 is formed at a position separated by a certain distance from the main component unit 400 that constitutes any one of the specific device 10, the specific object 20, and the part of the body 30, and includes: a radio antenna 510 that receives the electric energy generated by the wireless power supply unit 450; a remote control unit 520 in the form of an IC chip for driving and controlling the micro-light emitting diode transparent display skin 300; a transmitting and receiving unit 530 for ultra-short-range remote transmission and reception with the main component unit 400; an energy collection unit 540 for self-generation of energy; and a light detection unit 550 for detecting the exterior and brightness of any one of the structures of the specific device 10, the specific object 20, and the part of the body 30.

[0073] The IC (integrated circuit) of the remote control unit 520 is constructed of a micro-unit integrated circuit using complementary metal-oxide semiconductor (CMOS), and the area of ​​the IC chip is 1 mm×1 mm and the thickness is 0.5 mm.

[0074] In addition, the radio coil of the power wireless supply unit 450 formed in any one of the specific device 10, the specific object 20, and the body part 30 of the present invention receives the electric energy generated by the resonance phenomenon from the radio antenna 510 of the remote slave unit 500, and the electric energy received under the control of the remote control unit 520 is used to drive the transparent micro light emitting diode display skin 300.

[0075] Here, the collecting unit 480, 540 is a device for harvesting surrounding energy, and can generate electricity and supply it to various internal parts even if it does not receive power from another battery, and is preferably composed of any one of a photoelectric element, a thermoelectric element, a sieve element, a radio conversion element, or a combination thereof. After detecting external light applied to any one of a specific device 10, a specific object 20, and a part of the body 30, the light detection unit 490, 550 applies the light to the main control unit 470 and the remote control unit 520, respectively, and the main control unit 470 and the remote control unit 520 control the display brightness of the micro light emitting diode transparent display skin 300 according to the applied light.

[0076] Furthermore, the remote slave unit 500 is formed on any one side of a specific device 10, a specific object 20, or a part of the body 30, and can be held by a user as needed. The remote slave unit 500 is held by the user, and receives control commands from the smart phone 600 to be described below according to the position of the remote slave unit 500. Thereafter, when controlling the specific transparent micro-display light-emitting diode skin 300, the main element unit 400 or the remote slave unit 500 close to the specific transparent micro-display diode skin 300 is controlled.

[0077] In addition, if Figure 1 As shown in the display, as described above, it also includes: a smart phone 600, which includes an application (APP) that controls the main control unit 470 or the remote control unit 520 of the main element unit 400 or the remote slave unit 500 through short-range wireless communication with the main element unit 400 and the short-range wireless communication unit 460.

[0078] The wireless transmission and reception method between the main component part 400 and the smart phone 600 can also utilize the visible light wireless communication (Li-Fi) technology that uses the wavelength of light displayed by the light emitting diode to achieve a fast communication speed. In particular, when the micro light emitting diode technology of the present invention is applied, the miniaturization and lightweight effects of parts are improved.

[0079] That is, through the smart phone 600 of the present invention, any one of the structures of the specific device 10, the specific object 20, and the body part 30 is controlled to design and change color through short-range remote control between the transparent micro-display skin 300 and the smart phone 600. The main component part 400 is wirelessly connected to the smart phone 600 by short-range wireless communication methods such as Bluetooth communication, WIFI communication, NFC communication, IR communication, and visible light wireless communication. When the user selectively controls the application included in the smart phone 600, various colors are presented on the transparent micro-light-emitting diode display skin 300 through the control command.

[0080] Furthermore, when the transparent micro-LED display skin 300 is operated by the application of the smartphone 600 that controls the main component unit 400 and the remote slave unit 500 of the present invention, the initial control command is transmitted to the main component unit 400, the main component unit 400 operates the transparent micro-LED display skin 300, and when the distance between the main component unit 400 and the specific transparent micro-LED display skin 300 becomes farther, the control command is transmitted to the remote slave unit 500, and the remote slave unit 500 operates the corresponding transparent micro-LED display skin 300.

[0081] That is, when the specific transparent micro-LED display skin 300 is initially operated through the smart phone 600, the main element unit 400 or the remote slave unit 500 which is close to the specific transparent micro-LED display skin 300 in distance causes the specific transparent micro-LED display skin 300 to operate, and has the advantage of being able to control quickly and accurately.

[0082] According to the selectively controllable micro-LED system of the present invention, it is easy to attach the micro-LED display skin to a specific device, a specific object, a part of the body, etc., and it can be applied to various fields, thereby providing diversity of use. In addition, it is easy to control through the smartphone that the user often holds, thereby providing convenience of use. Depending on the purpose of use, it is easy to change the overall or partial multi-color and flashing, thereby being able to instantly respond to the on-site situation and arouse the user's interest and satisfaction. Through low-power and rechargeable batteries and overall power supply, it is an invention with the effect of being able to be used for a long time.

Claims

1. A micro light emitting diode system capable of selective control, characterized in that: include: A transparent micro-LED display skin (300) is transfer-attached to a transparent flexible substrate (310) having transparency and flexibility and a semiconductor device layer (320) having micro-LED pixels (330) on the transparent flexible substrate (310), and is embedded on the outer surface of any one of a specific device (10), a specific object (20), and a part of the body (30); The main component part (400) is formed on the outer surface of any one of the specific device (10), the specific object (20), and the body part (30) and is separated from the transparent micro-light emitting diode display skin (300), and includes: a power switch (410) for controlling the power supply part (430); a charging port (420) for charging the battery via a USB cable; the power supply part (430) is controlled by the power switch (410); a battery (440) for storing the power charged through the charging port (420); a power wireless supply part (450) having a radio coil for wirelessly supplying power to the power supply part (430); a short-range wireless communication part (460) for performing short-range wireless communication with external devices including a smart phone (600) and other devices; a main control part (470) for controlling the color used to present the transparent micro-light emitting diode display skin (300); The remote slave part (500) is arranged on the outer surface of any one of the specific device (10), the specific object (20), and the body part (30) at a position separated from the main component part (400) by a certain distance or placed or held by the user, and comprises: a radio antenna (510) for receiving electric energy generated by the power wireless supply part (450); a remote control part (520) for driving and controlling the transparent micro light emitting diode display skin (300); a transmitting and receiving part (530) for ultra-short-range remote transmission and reception with the main component part (400); A smart phone (600) comprising an application program for controlling a main control unit (470) of the main element unit (400) or a remote control unit (520) of a remote slave unit (500) by short-distance wireless communication with a short-distance wireless communication unit (460) of the main element unit (400), The main element part (400) and the remote slave part (500) constitute a collection part (480, 540) for self-generated energy, and the collection part (480, 540) is composed of any one of a photoelectric element, a thermoelectric element, a piezoelectric element, and a radio conversion element, or a combination thereof. When the transparent micro-light emitting diode display skin (300) is controlled by the application program, the transparent micro-light emitting diode display skin (300) is controlled by a main component unit (400) or a remote slave unit (500) close to the specific transparent micro-light emitting diode display skin (300). The transparent micro light emitting diode display skin (300) is a display screen in which ultra-small light emitting diode particles with a size of 5 to 100 μm are collaged on a transparent flexible substrate, and the LED chip itself is used as a pixel. The micro-light emitting diode pixel (330) of the semiconductor device layer (320) is a pn diode layer, composed of a compound semiconductor having a band gap corresponding to a specific region in a spectrum, and is composed of a positive electrode layer (331) as a circuit pattern or a bump, a conductive adhesive layer, a transparent conductive layer (332), a transparent p-electrode layer (333), a p-GaN layer (334), an active layer (335), an n-GaN layer (336) and an upper transparent n-electrode layer (337), and a transparent insulating layer (338) is formed between each micro-light emitting diode (330).

2. The selectively controllable micro light emitting diode system according to claim 1, characterized in that: The main element part (400) and the remote slave part (500) constitute a light detection part (490, 550) for detecting external brightness, After sensing external light applied to any one of a specific device (10), a specific object (20), and a body part (30), the light is applied to the main control unit (470) and the remote control unit (520), respectively, The main control unit (470) and the remote control unit (520) control the display brightness of the transparent micro light emitting diode display skin (300) according to the applied light.

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