KR101145715B1 - Mobile terminal having a function of sterilization and skin care with Ultra Violet Light Emitting DiodeUVLED - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal having a sterilization and skin care function using an Ultra Violet Light Emitting Diode (UVLED). The present invention relates to sterilizing necessary parts or managing skin using a portable terminal. According to the invention, the input unit is installed on the outer surface of the main body, receives the user's selection signal and delivers it to the control unit. The LED module is installed in the main body and includes at least one ultraviolet light emitting diode (UVLED) that emits light including ultraviolet rays out of the main body. The control unit is installed in the main body and drives the LED module according to the selection signal through the input unit to emit light including ultraviolet rays out of the main body. In this case, the LED module may further include heterogeneous LEDs such as a flash LED, a visible light LED (Visible LED, VLED), and an infrared LED (Infra Red LED, IRLED).

Description

Mobile terminal having a function of sterilization and skin care with Ultra Violet Light Emitting Diode (UVLED)}

The present invention relates to a mobile terminal, and more particularly, to sterilization of a necessary portion by using an ultraviolet light emitting diode (UVLED) installed in a main body of the mobile terminal, or to sterilization using UVLED which can be used for skin care. A portable terminal having a skin care function.

Information and communication technology using wired and wireless communication networks is growing very fast in a short period of time due to new technologies and functions that stimulate consumer purchasing. In particular, due to the development of the technology of the mobile terminal, beyond the step of performing a simple application, various applications are installed to meet the needs of users. As a result, the portable terminal user can use voice information, text information, image information, moving picture expert group (MPEG) layer 3 (MPEG), and games through the portable terminal.

As such, the mobile terminal is evolving into a converged form of call function, shooting function, and video playback function to satisfy the user's needs, and various new functions or applications are expected to be developed and applied to satisfy various needs of the user. do.

Accordingly, an object of the present invention is to provide a portable terminal having a sterilization and skin care function using UVLED which can sterilize necessary parts or manage skin using a portable terminal.

In order to achieve the above object, the present invention provides a portable terminal having a sterilization and skin care function using a UVLED including a main body, an input unit, an LED module, a display unit and a control unit. The input unit is installed on an outer surface of the main body and receives a user's selection signal. The LED module is installed in the main body, and has at least one UVLED that emits light including ultraviolet rays out of the main body. The display unit is installed on one surface of the main body and displays a driving state of the LED module. The control unit is installed in the main body and drives the LED module according to a selection signal through the input unit to emit light including ultraviolet rays out of the main body.

In the portable terminal according to the present invention, the LED module may emit light including the ultraviolet rays to the outside with respect to at least one of the surfaces adjacent to one surface of the main body provided with the display or the opposite surface.

In the portable terminal according to the present invention, the LED module is mounted on a substrate, one surface of the substrate, the at least one UVLED emitting the ultraviolet rays, the lens portion formed to be spaced apart from the UVLED in the direction in which the ultraviolet rays are emitted. It may include.

In the mobile terminal according to the present invention, the LED module further comprises at least one of a flash LED, a visible light LED (Visible LED, VLED), an infrared LED (Infra Red LED, IRLED) mounted on one surface of the substrate. can do.

In the portable terminal according to the present invention, the control unit may selectively drive a plurality of LEDs of the LED module.

In the mobile terminal according to the present invention, the lens unit may cover the LED mounted on one surface of the substrate.

In the mobile terminal according to the present invention, the substrate may be any one of a ceramic substrate, a metal substrate, and a flexible substrate.

In the mobile terminal according to the present invention, the UVLED may be a semiconductor package in which the UVLED chip is sealed with a silicon-based ultraviolet encapsulant. In this case, the UVLED may be either a SMD type or a TO-CAN type.

In the portable terminal according to the present invention, the at least one UVLED emitting a homogeneous or heterogeneous wavelength may be arranged on the substrate.

In the mobile terminal according to the present invention, the at least one UVLED may emit one wavelength among UV-A (320-360 nm), UV-B (280-320 nm) and UV-C (250-280 nm), respectively. have.

In the mobile terminal according to the present invention, the lens unit includes a diffusion plate for diffusing the ultraviolet light of the point light source emitted by the UVLED into the ultraviolet light of the surface light source, and a radiation angle lens for extending the radiation angle at which the ultraviolet light of the surface light source is emitted. can do.

In the portable terminal according to the present invention, the lens unit may be integrally formed with the diffusion plate and the radiation angle lens.

In the mobile terminal according to the present invention, the lens unit may be formed of any one of synthetic quartz, glass polymer, Teflon, special acrylic or special plastic material.

In the portable terminal according to the present invention, the LED module may further include a reflection holder supporting the lens unit spaced from the substrate and reflecting ultraviolet rays emitted from the UVLED to enter the lens unit.

In the mobile terminal according to the present invention, the lens unit may be installed on one surface of the main body above the UVLED.

The present invention also provides a portable terminal including a main body, a substrate, at least one UVLED, and a lens unit. The substrate is mounted inside the main body. The at least one UVLED is installed on one surface of the substrate, and emits light including ultraviolet rays out of the body through one surface of the body facing one surface of the substrate. The lens unit is installed on the main body above the UVLED, and diffuses ultraviolet rays emitted from the UVLED.

The portable terminal according to the present invention may further include at least one of a flash LED, a visible light LED (VLED), and an infrared LED (Infra Red LED) mounted on one surface of the substrate.

In the portable terminal according to the present invention, the lens unit covers a plurality of LEDs mounted on one surface of the substrate.

Since the portable terminal according to the present invention includes an LED module, the part where the LED module is installed can be used to sterilize, skin care, or the like by irradiating ultraviolet rays in close proximity to a part requiring sterilization or skin care.

In addition, since the LED module is integrally manufactured to include a flash LED in addition to the UVLED, the size of the mobile terminal due to the installation of the LED module can be minimized.

In addition, since the LED module is manufactured integrally to include a visible light LED (Visible LED, VLED), infrared LED (Infra Red LED, IRLED), etc., in addition to UVLED, sterilization, skin care effect can be further improved.

The key provided in the portable terminal may control activation of the LED module, intensity of light emitted from the activated LED module, irradiation time, and the like. In addition, by connecting the LED module to the lock (lock) function of the portable terminal, it is possible to prevent a safety accident due to misuse of the LED module.

1 is a block diagram illustrating a configuration of a portable terminal having a sterilization and skin care function using UVLEDs according to a first embodiment of the present invention.
2 is a plan view illustrating a front surface of a mobile terminal having a sterilization and skin care function using UVLEDs according to a first embodiment of the present invention.
3 is a plan view illustrating a rear surface of the mobile terminal of FIG. 2.
4 is a cross-sectional view taken along line 4-4 of FIG. 3.
5 is a plan view illustrating a portable terminal having a sterilization and skin care function using UVLEDs according to a second embodiment of the present invention.
6 is a plan view showing another arrangement of the UVLED of FIG.
7 is a plan view illustrating an LED module of a mobile terminal having a sterilization and skin care function using UVLEDs according to a third embodiment of the present invention.
8 is a plan view illustrating an LED module of a mobile terminal having a sterilization and skin care function using UVLEDs according to a fourth embodiment of the present invention.
9 is a plan view illustrating an LED module of a mobile terminal having a sterilization and skin care function using UVLEDs according to a fifth embodiment of the present invention.
FIG. 10 is a plan view illustrating an LED module of a mobile terminal having a sterilization and skin care function using UVLEDs according to a sixth embodiment of the present invention.
11 is a perspective view illustrating a portable terminal having a sterilization and skin care function using UVLEDs according to a seventh embodiment of the present invention.
12 is a perspective view illustrating a portable terminal having a sterilization and skin care function using UVLEDs according to an eighth embodiment of the present invention.
13 and 14 are graphs showing the spectrum of ultraviolet light emitted by the UVLED of the LED module according to the embodiment of the present invention and the ultraviolet light emitted by the conventional mercury lamp.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. The mobile terminal includes a digital broadcasting receiver such as a mobile communication terminal, a notebook, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital camera, a digital multimedia broadcasting (DMB), or a digital video broadcasting (DVB). It is not limited to this.

First embodiment

1 is a block diagram illustrating a configuration of a portable terminal having a sterilization and skin care function using UVLEDs according to a first embodiment of the present invention. 2 is a plan view illustrating a front surface of a mobile terminal having a sterilization and skin care function using UVLEDs according to a first embodiment of the present invention. 3 is a plan view illustrating a rear surface of the mobile terminal of FIG. 2. 4 is a cross-sectional view taken along line 4-4 of FIG. 3.

1 to 4, the portable terminal 100 according to the first embodiment includes a main body 10, a display unit 20, an input unit 30, an LED module 40, a storage unit 60, and a controller ( 70). The input unit 30 is installed on the outer surface of the main body 10 to receive a selection signal from the user. The LED module 40 is installed in the main body 10 and includes at least one UVLED 44 that emits light including ultraviolet rays out of the main body 10. The display unit 20 is installed on one surface of the main body 10 and displays a driving state of the LED module 40. The controller 70 is installed in the main body 10 and drives the LED module 40 according to the selection signal through the input unit 30 to emit light including ultraviolet rays from the main body 10.

Specifically, the portable terminal 100 according to the first embodiment will be described.

The main body 10 constitutes an external appearance of the portable terminal 100, and includes a display unit 20, an input unit 30, an LED module 40, a storage unit 50, and a controller 60. Various parts necessary for the driving of are installed inside or outside.

The display unit 20 displays information stored in the storage unit 60 including various function menus executed in the mobile terminal 100. The display unit 20 may display a state according to the driving of the LED module 40 under the control of the controller 70. The user checks the driving state of the LED module 40 displayed on the display unit 20, and through the input unit 30, driving conditions such as on / off of the LED module 40, the activated LED module 40. ), You can adjust the light intensity and irradiation time. In this case, an LCD (Liquid Crystal Display) or a touch screen may be used as the display unit 20. The touch screen serves both as a display device and as an input device. In this case, the display unit 20 may be installed on the front surface of the main body 10.

The input unit 30 provides a plurality of keys for the operation of the portable terminal 100, generates a selection signal according to a user's key selection, and transmits the selection signal to the controller 70. The user may input a selection signal for controlling the LED module 40 through the input unit 30. In this case, an input device such as a keypad, a pointing device such as a touch pad, or a touch screen may be used as the input unit 30, but is not limited thereto.

The storage unit 60 stores a program necessary for controlling the operation of the portable terminal 100 and information generated while executing the program. In particular, the storage unit 60 may store an execution program for controlling the driving of the LED module 40 according to the selection signal through the input unit 30.

The LED module 40 includes at least one UVLED 44 and is installed to emit light including ultraviolet rays out of the main body 10 through the outer surface of the main body 10. In this case, the LED module 40 may be installed to emit light including ultraviolet rays through the rear surface of the main body 10. In addition, the LED module 40 may be connected to a lock function of the mobile terminal 100, thereby preventing a safety accident due to malfunction or incorrect use of the LED module 40.

The controller 70 is a microprocessor that performs overall control operations of the mobile terminal 100. In particular, the control unit 70 controls the performance of sterilization and skin care function through the control of the LED module 40. That is, when a selection signal for controlling the LED module 40 is input through the input unit 30, the control unit 70 drives the LED module 40 according to the corresponding selection signal and outwards ultraviolet rays through the rear surface of the main body 10. It emits light, including. In addition, the controller 70 may control activation of the LED module 40, intensity of light emitted from the activated LED module 40, irradiation time, and the like according to the selection signal through the input unit 30.

In particular, the LED module 40 may include a substrate 42 and a UVLED 44, and may further include a lens unit 46 and a reflection holder 48.

UVLEDs 44 are mounted on one surface of the substrate 42. The other surface of the substrate 42 may be a heat sink. The UVLEDs 44 may be spaced apart by a predetermined interval in the direction of emitting ultraviolet rays to form the lens unit 46. In addition, the reflective holder 48 may be formed to seal the spaced space between the substrate 42 and the lens unit 46 and to support the lens unit 46. The reflection holder 48 reflects the ultraviolet rays emitted from the UVLEDs 44 toward the lens portion 46.

When power is applied to the LED module 40 under the control of the controller 70, the plurality of UVLEDs 44 mounted on the substrate 42 emit ultraviolet rays, and the emitted ultraviolet rays directly reach the lens unit 46. Or it is reflected by the reflection holder 48 to reach the lens portion 46. At this time, the ultraviolet light of the point light source emitted from the UVLED 44 is diffused from the lens unit 46 to the ultraviolet light of the surface light source, and the divergence angle is extended to diverge again from the lens unit 46. In this way, the ultraviolet rays of the surface light source emitted again are discharged out of the main body 10.

Meanwhile, each configuration of the LED module 40 will be described in more detail. The substrate 42 has a UVLED 44 mounted on one surface thereof. The substrate 42 receives power from the power supply unit and applies the power to the UVLED 44 so that the plurality of UVLEDs 44 emit ultraviolet rays. In this case, the substrate 42 may be an epoxy resin substrate, a composite base material substrate, a flexible base material substrate, or a ceramic base material substrate, depending on a material forming the substrate 42. And a metal cored base material substrate. In addition, the substrate 42 may be classified into a rigid PCB, a flexible PCB, and a rigid-flexible PCB according to its characteristics.

The substrate 42 according to the first embodiment may be formed by selecting any one of the above-described types. The printed circuit pattern, which is a passage for transmitting an electrical signal, is formed on the substrate 42, and the UVLED 44 is mounted on the substrate 42 according to the formed printed circuit pattern. In this case, the substrate 42 may be a main board embedded in the main body 10 or a separate board connected to the main board through a connection terminal.

Although not shown, the heat sink may be formed on the other surface opposite to one surface of the substrate 42 on which the UVLED 44 is mounted. The heat sink dissipates heat emitted from the UVLED 44 and the substrate 42 mounting the UVLED 44. In this case, the heat sink may be formed using a heat spreader, a heat sink, a heat pipe, or the like.

The UVLED 44 is mounted on one surface of the substrate 42. The UVLED 44 is an ultraviolet light emitting diode manufactured in the form of a semiconductor chip, that is, a UVLED chip, and is a semiconductor package including a UVLED chip. The UVLED 44 may be manufactured in a semiconductor package of a SMD (surface mounted device) type or a TO-CAN type according to a structure for packaging a UVLED chip. The UVLED 44 may be bonded to the substrate 42 by a series structure, a parallel structure, a series parallel mixed structure, or the like according to the printed circuit pattern of the substrate 42. According to the printed circuit pattern of the substrate 42, the position and arrangement of the UVLED 44 can also be arranged in a vertical structure, a left and right random structure, and the total output according to the power of the UVLED 44 which is also outputted. Can be adjusted to adjust the

The UVLEDs 44 may be classified into chips emitting long wavelengths (UV-A), medium wavelengths (UV-B), and short wavelength ultraviolet rays (UV-C) according to wavelengths emitted by the UVLEDs 44. UV-A has a wavelength of 320-360 nm, UV-B has a wavelength of 280-320 nm, and UV-C has a wavelength of 250-280 nm.

The UVLED 44 is preferably an encapsulant for packaging a UVLED chip and uses a material capable of securing thermal stability while protecting the embedded UVLED chip. For example, a silicon-based ultraviolet encapsulant may be used. In particular, the UV-based UVLED 44 of the UV-A band of the silicone-based UV encapsulant may be used an ultraviolet encapsulant having a light transmittance of 80% or more, a refractive index of 1.4 or more, adhesive strength of 130 or more. The UV LED 44 of the UV-B band may be an ultraviolet encapsulation material having a light transmittance of 80% or more, a refractive index of 1.45 or more, and an adhesiveness of 140 or more. The UV LED 44 of the UV-C band may be an ultraviolet light encapsulation material having a light transmittance of 70% or more, a refractive index of 1.5 or more, and an adhesiveness of 140 or more.

The lens unit 46 diffuses the ultraviolet light of the point light source to the surface light source, and extends the angle at which the ultraviolet light is radiated so that the ultraviolet light is radiated to a larger area. The lens unit 46 may include a diffusion plate 46a and a radiation angle lens 46b. At this time, the lens unit 46 is installed in the main body 10 to be exposed to the back of the main body 10.

The diffusion plate 46a changes the ultraviolet light of the point light source into the ultraviolet light of the surface light source. That is, the UVLED 44 emits the ultraviolet light of the point light source, and diffuses into the ultraviolet light of the surface light source as the ultraviolet light of the point light source passes through the diffusion plate 46a. A diffusion pattern is formed in the diffusion plate 46a, and the ultraviolet rays of the point light sources incident upon the diffusion patterns are diffused into the ultraviolet rays of the surface light sources. Ultraviolet rays may be diffused in various forms depending on the pattern of the diffusion plate 46a. The radiation angle lens 46b extends the angle at which ultraviolet rays are radiated to widen the irradiation area of ultraviolet rays.

The diffusion plate 46a may be manufactured using synthetic quartz (Fused quartz or Fused silica) or glass (glass) material in order to prevent ultraviolet diffusion and deterioration. The diffusion pattern formed on the diffusion plate 46a and the diffusion plate 46a may be formed using any one of laser processing, scratching, and etching methods.

The radial lens 46b may be manufactured using synthetic quartz, glass polymer, Teflon, special acrylic, or special plastic material to prevent its degradation. The radial lens 46b may be formed by laser processing, coating, deposition, scratching, etching, or the like.

On the other hand, the lens unit 46 may be manufactured by combining the diffusion plate 46a and the radiation angle lens 46b, respectively, or may be integrally manufactured. In particular, the lens unit 46 is preferably manufactured integrally in order to reduce the number of parts and lower the price. In this case, when manufacturing the lens unit 46 integrating the diffusion plate 46a and the radiation angle lens 46b, the lens unit 46 may be formed by forming a diffusion pattern in a synthetic quartz material.

The reflection holder 48 supports the lens unit 46 and reflects the ultraviolet rays emitted from the UVLED 44 to enter the lens unit 46. The reflection holder 48 may be coated on the inner surface to increase the reflectance of the ultraviolet light. In this case, the material of the coding material may be a reflective metal film such as Al, Au, Ag, etc. having good reflection characteristics.

4 shows an example in which the lens unit 46 is supported by the reflection holder 48, but is not limited thereto. For example, the lens unit 46 may be provided in the main body 10 without the reflective holder 48. In this case, the lens unit 46 may be installed in the main body 10 portion above the UVLED 44.

The LED module 40 may include a driver 49 for driving the UVLED 44. In this case, the driver 49 may include an LED driver or a DC-DC converter. The LED driver may include a PWM control and a constant current, depending on the design.

The advantages of the sterilization and skin care method using the LED module 40 are as follows.

There are three types of ultraviolet rays transmitted directly from the sun to the earth: UV-A (320-360 nm), UV-B (280-320 nm), and UV-C (250-280 nm). The 99% that reaches the surface is in the form of UV-A (320-360 nm), which is only a minor harm to plants, and UV-B (280-320 nm) can cause damage to plant tissues and skin cancer in humans. C (250-280nm) can burn and kill bacteria and viruses. The ultraviolet germicidal effect is mainly caused by the UV-C region between 250 nm and 280 nm even in the ultraviolet wavelength band. UV-C is characterized by sterile ultraviolet light because DNA present in cells absorbs UV-C well.

Among UV-C, a wavelength of 253.7 nm (about 254 nm) is best absorbed by DNA, which is known to permanently damage and kill DNA, a microbial genetic material. Moreover, the wavelength which shows the highest bactericidal effect is 265 nm. The wavelength of 254nm emitted by the low pressure or high output low pressure amalgam lamp has a very high UV sterilization effect, but because it emits only 254nm wavelength due to the characteristics of the lamp, it is known that the wavelength has the highest effect. It is reported to have efficiency. This UV-C wavelength is hardly detectable because the wavelength is too short and the transmittance is weak, and the ozone layer in the earth's atmosphere completely blocks it. This makes the LED module 40 that emits ultraviolet light can be artificially used for sterilization. The advantage of UV sterilization is that it can sterilize all germs, and when it is exposed to vegetables or fruits, the minerals are kept intact, there is no change in pH, it is not resistant to germs irradiated by light, and the method of use is simple and economical. I use it a lot. Such ultraviolet sterilization can sterilize fungi such as bacteria, Escherichia coli, and viruses that are harmful to the human body contaminated with air and water or contaminated with household utensils or household goods.

The UVLED 44 is manufactured by forming an ultraviolet light emitting diode in the form of a semiconductor chip. Accordingly, there are the following advantages. Table 1 below illustrates the advantages of the UVLED 44 in comparison with a conventional mercury lamp. 13 and 14 are graphs showing the spectrum of ultraviolet light emitted by the UVLED 44 according to the embodiment of the present invention and the ultraviolet light emitted by the conventional mercury lamp.

Light source for antibacterial using existing Hg Lamp Light source using UVLED Spectrum Multiple lines
Single line
Selectable Efficiency Less than 10% At 365nm wavelength
14 to 50% Temperature height Low (coolable) Durability lowness height Restriction of Hazardous Substances Directive (RoHS) Mercury detection none Life (at 70% output) 1,000-20,000 hours 50,000 to 100,000 hours Response time (on / off cycling) Slow response
Slower with use Fast response

Referring to Table 1, a sterilization method using UV according to the prior art uses a mercury lamp, and as shown in FIG. 13, a mercury lamp (Hg lamp) represents multiple spectra. Accordingly, the conventional UV sterilization method must use a filter to select the required wavelength from the multiple spectra and eliminate the remaining wavelengths. On the other hand, as shown in Figure 14, the UVLED 44 according to the embodiment of the present invention emits only one spectrum, such UVLED 44 can be made to emit only the spectrum necessary for the characteristics of the semiconductor chip, the filter You do not have to use. For this reason, the sterilization method using the UVLED 44 according to the embodiment of the present invention does not disperse its power like a mercury lamp according to the prior art, and thus, is more efficient than a mercury lamp.

As described above, the mercury lamp should be filtered to emit only the desired wavelength, so that the sterilization module using the mercury lamp coats its interior using a thin coating material for filtering. In addition, since the sterilization module using the mercury lamp generates a lot of heat, the coating material of the thin film melts inside the sterilization module and may fall to the debris and change the color of the light receiving part. On the other hand, the LED module 40 using the UVLED 44 does not cause the above-described problem.

Mercury lamps are prone to glass breakage and are inconvenient to handle. UVLED 44, on the other hand, is a semiconductor and is packaged with semiconductor technology and is very robust.

Mercury lamps contain mercury and are subject to sanctions and environmental issues under the Restriction of Hazardous Substances Directive (RoHS), but UVLEDs 44 are environmentally friendly because they do not contain heavy metal regulatory substances.

Mercury lamps have a lifetime of 1,000 to 20,000 hours at 70% output. Typically, mercury lamps have a lifetime of about 2000 hours. UVLED 44, on the other hand, typically has a lifetime of 50,000 hours, and may have a lifetime of 100,000 hours. This can be said that the UVLED 44 has a semi-permanent life.

And the response time (on / off cycling) for turning on the power and the light to operate for light emission is slow in the case of the mercury lamp, but in contrast, the UVLED 44 has the advantage of responding immediately.

As described above, since the portable terminal 100 according to the first embodiment includes the LED module 40, by irradiating ultraviolet rays by bringing the portion where the LED module 40 is installed to a portion which requires sterilization or skin care, It can be used for sterilization of parts and skin care.

Second embodiment

On the other hand, the LED module 40 of the portable terminal 100 according to the first embodiment has been described an example provided with one UVLED 44, but is not limited thereto. For example, as shown in FIG. 5, the LED module 140 may be configured by including two UVLEs 44D. 5 is a plan view illustrating a portable terminal 200 having sterilization and skin care functions using the UVLED 44 according to the second embodiment of the present invention.

Referring to FIG. 5, the LED module 140 of the portable terminal 200 according to the second embodiment has a structure in which two UVLEDs 44 are mounted on a substrate 42. In this case, the lens unit 46 is formed on the substrate 42 to cover the two UVLEDs 44.

Meanwhile, FIG. 5 discloses an example in which the LED module 140 includes two UVLEDs 44, but is not limited thereto. For example, as illustrated in FIG. 6, a plurality of UVLEDs 44 may be mounted on the substrate 42 to configure the LED modules 140a, 140b, and 140c. 6A illustrates an LED module 140a in which a plurality of UVLEDs 44 are arranged in a matrix form, and FIG. 6B illustrates an LED module 140b in which a plurality of UVLEDs 44 are arranged in a circle. 6 (c) shows an LED module 140c in which a plurality of UVLEDs 44 are arranged crosswise. Other UVLEDs 44 may be arranged on the substrate 42 in a variety of ways.

As such, the plurality of UVLEDs 44 are arranged in accordance with the printed circuit pattern of the substrate 42 to form an array of UVLEDs. Such a UVLED array may uniformly arrange the UVLEDs 44 emitting the same wavelengths, or may mix and arrange the UVLEDs 44 emitting the different wavelengths. The plurality of UVLEDs 44 may be uniformly arranged on one surface of the substrate 42 and may be arranged in various forms such as a matrix and zigzag.

The LED module 40 may include a driver for driving the plurality of UVLEDs 44. The driver may selectively drive some or all of the plurality of UVLEDs 44 arranged on the substrate 42. As described above, the plurality of UVLEDs 44 may be uniformly arranged to emit the same wavelength, or may be a mixture of those emitting the different wavelengths. Accordingly, when a plurality of UVLEDs 44 emitting the same wavelength are uniformly arranged, the driving unit drives only a part of the plurality of UVLEDs 44 arranged on the substrate 42 to consume power in the portable terminal 100. Power saving or the intensity of the wavelength can be adjusted. In addition, when a plurality of UVLEDs 44 emitting different wavelengths are arranged in a mixed state, the driver may selectively drive only the UVLEDs 44 emitting the necessary wavelengths among the plurality of UVLEDs 44 arranged on the substrate 42. Can be. In this case, the driving unit may include an LED driver or a DC-DC converter. The LED driver may include a PWM control and a constant current, depending on the design.

Third embodiment

Meanwhile, in the first and second embodiments, an example in which the LED modules 40 and 140 include at least one UVLED 44 is disclosed, but is not limited thereto. That is, as shown in FIG. 7, the LED module 240 may include a UVLED 44 and a flashing LED 52. 7 is a plan view illustrating an LED module 240 of a portable terminal having a sterilization and skin care function using the UVLED 44 according to the third embodiment of the present invention.

Referring to FIG. 7, the LED module 240 of the portable terminal according to the third exemplary embodiment has a structure in which a UVLED 44 and a flashing LED 52 are mounted on a substrate 42. In this case, the lens unit 46 may be formed to cover only the UVLED 44. As the flash LED 52, a white LED may be used.

Fourth Embodiment

On the other hand, the LED module 240 of the portable terminal according to the third embodiment has been described an example in which the lens unit 46 is formed so as to cover only the UVLED 44, but is not limited thereto. For example, as shown in FIG. 8, the LED module 340 of the portable terminal according to the fourth embodiment may be formed with a lens unit 46 to cover the UVLED 44 and the flash LED 52 together.

Fifth and Sixth Embodiments

Meanwhile, although the LED modules 240 and 340 of the portable terminals according to the third and fourth embodiments have disclosed an example including the UVLED 44 and the flashing LED 52, the present invention is not limited thereto. The LED module may further include at least one of a LED for flash, a Visible LED (VLED), and an Infra Red LED (IRLED), including a UVLED.

That is, as shown in FIG. 9, the LED module 440 of the mobile terminal according to the fifth embodiment includes a UVLED 44, a VLED 54, and an IRLED 56. Alternatively, as shown in FIG. 10, the LED module 540 of the portable terminal according to the sixth embodiment includes a UVLED 44, a flashing LED 52, a VLED 54, and an IRLED 56.

9 and 10 illustrate an example in which the lens unit 46 is formed to cover all of the LEDs mounted on the substrate 42, but the lens unit 46 covers only the UVLED 44 or covers the UVLED 44. It may be formed to selectively cover only some LEDs, including.

The LED modules 440 and 540 of the portable terminals according to the fifth and sixth embodiments include UVLEDs 44, VLEDs 54, and IRLEDs 56, thereby further improving sterilization and skin care effects using the portable terminals. have. In other words, the skin care is performed by adjusting the wavelength of light partially or step by step while easily carrying around the part that needs sterilization, soothing, and regeneration related to the skin by using the light of 3 wavelengths emitted from the LED modules 440 and 540 of the mobile terminal. Can be used for

At this time, light of a specific wavelength shows various optical properties. Especially, three wavelengths of 425nm, 660nm, and 830nm bands have monochromatic properties. Principle of treatment using light uses photodynamic reaction, photobio stimulation and photothermal bio stimulation.

Photodynamic therapy (PDT) is involved in the pure blue wavelength of 415nm, and has an anti-inflammatory and antiviral effect that can eradicate P-Acne (caused acne, normal flora of the skin). It is known. To catch P-Acne you need 99% pure blue light.

Photo-Bio Stimulation Therapy (PBST) involves a pure red wavelength of 660 nm, which is used to promote blood circulation, controlling cystic acne, ph, sedation and regeneration.

Photothermal Bio Stimulation Therapy (PTBST) involves IR wavelength band of 830nm and stimulates the cells to induce cell regeneration, soluble collagen production, and elastin production. rejuvenation).

The three wavelength bands emitted by the LED module 440, 540 are shingles, herpes simplex, atopic dermatitis, hair care (itch, seborrheic dermatitis, dandruff, alopecia areata), acne (inflammatory P-acne, non-inflammatory), photorejuvenation ( photo rejuvenation) It can be applied to management or treatment. In other words, it generates selective optical wavelengths and undergoes stepwise processes of photodynamic reactions, photoreactions, and photothermal reactions. Also, selective processes increase metabolism and increase cell division by killing bacteria and promoting blood circulation. Synthesis of collagen fibers can help skin soothe and regenerate quickly.

7th and 8th Embodiment

Meanwhile, in the first embodiment, an example in which the LED module 40 is provided on the rear surface of the main body 10 is disclosed, but the present invention is not limited thereto. For example, the LED module may be installed on the front or side of the main body.

For example, referring to FIG. 11, in the mobile terminal 700 according to the seventh embodiment, an LED module 640 is installed on one side of the main body 10 adjacent to the front surface of the main body 10. In this case, the LED module 640 may include at least one UVLED, and may further include at least one of VLED and IRLED.

12, in the portable terminal 800 according to the eighth embodiment, an LED module 740 is installed on an upper surface adjacent to the front surface of the main body 10. In this case, the LED module 740 may include at least one UVLED, and may further include at least one of VLED and IRLED.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those skilled in the art that other modifications based on the technical idea of the present invention may be implemented.

10: main body 20: display unit
30: Input unit 40,140,240,340,440,540,640,740: LED module
42: substrate 44: UVLED
46 lens unit 46a diffuser plate
46b: radial lens 48: reflection holder
49: drive unit 52: flash LED
54: VLED 56: IRLED
100,200,300,400,500,600,700,800: Mobile terminal

Claims (19)

main body;
An input unit installed on an outer surface of the main body and receiving a user's selection signal;
An LED module installed in the main body, the LED module including at least one Ultra Violet Light Emitting Diode (UVLED) for emitting light including ultraviolet rays out of the main body;
A display unit installed on one surface of the main body and displaying a driving state of the LED module; And
A control unit installed in the main body and driving the LED module according to a selection signal through the input unit to emit light including ultraviolet rays out of the main body;
The LED module,
Board;
The at least one UVLED mounted on one surface of the substrate and emitting the ultraviolet rays;
At least one of a flash LED, a visible light LED (VLED), and an infrared LED (Infra Red LED) mounted on one surface of the substrate;
A lens unit spaced apart from the UVLED in a direction in which the ultraviolet rays are emitted and covering the LED mounted on one surface of the substrate; And
A reflection holder interposed between the substrate and the lens part to support the lens part spaced apart from the substrate, and reflect the ultraviolet light emitted from the UVLED to enter the lens part;
Mobile terminal having a sterilization and skin care function using UVLED, characterized in that it comprises a. The method of claim 1, wherein the LED module,
A portable terminal having a sterilization and skin care function using UVLEDs, wherein the display unit emits light including the ultraviolet rays to the outside of at least one of a surface adjacent to one surface of the main body provided with the display unit. delete delete The method of claim 1, wherein the control unit,
A portable terminal having a sterilization and skin care function using a UVLED, characterized in that for selectively driving a plurality of LEDs to be the LED module. delete The method of claim 1, wherein the substrate
A portable terminal having a sterilization and skin care function using UVLED, which is any one of a ceramic substrate, a metal substrate, and a flexible substrate. The method of claim 1, wherein the UVLED
A portable terminal having a sterilization and skin care function using UVLED, wherein the UVLED chip is a semiconductor package sealed with a silicon-based ultraviolet encapsulant. The method of claim 8, wherein the UVLED is
A portable terminal having a sterilization and skin care function using UVLED, characterized in that either SMD type or TO-CAN type. The method of claim 1,
The at least one UVLED emitting a homogeneous or heterogeneous wavelength is arranged on the substrate, characterized in that the portable terminal having a sterilization and skin care function using the UVLED. The method of claim 10,
The at least one UVLED emits one wavelength of UV-A (320-360nm), UV-B (280-320nm) and UV-C (250-280nm), respectively, sterilization and skin using UVLED A portable terminal having a management function. The method of claim 1, wherein the lens unit
A diffusion plate for diffusing the ultraviolet light of the point light source emitted by the UVLED into the ultraviolet light of the surface light source; And
A radiation angle lens for extending the radiation angle at which the ultraviolet light of the surface light source is radiated;
Mobile terminal having a sterilization and skin care function using UVLED, characterized in that it comprises a. The method of claim 12, wherein the lens unit
A portable terminal having sterilization and skin care functions using UVLEDs, wherein the diffusion plate and the radiation angle lens are integrally formed. The method of claim 12, wherein the lens unit
A portable terminal having a sterilization and skin care function using UVLED, which is formed of any one of synthetic quartz, glass polymer, Teflon, special acrylic or special plastic. delete The method of claim 1, wherein the lens unit
A portable terminal having a sterilization and skin care function using the UVLED, characterized in that installed on one surface of the body above the UVLED. main body;
A substrate mounted inside the main body;
At least one ultraviolet light emitting diode (UVLED) disposed on one surface of the substrate and emitting light including ultraviolet rays out of the main body through one surface of the main body facing one side of the substrate;
At least one of a flash LED, a visible light LED (VLED), and an infrared LED (Infra Red LED) mounted on one surface of the substrate;
A lens unit installed on the main body above the UVLED to cover the LED mounted on one surface of the substrate and to diffuse ultraviolet rays emitted from the UVLED; And
A reflection holder interposed between the substrate and the lens part to support the lens part spaced apart from the substrate, and reflect the ultraviolet light emitted from the UVLED to enter the lens part;
Mobile terminal having a sterilization and skin care function using UVLED, characterized in that it comprises a. delete delete

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