KR101021535B1 - Display apparatus for outdoor and operating method thereof - Google Patents

Abstract

The present invention is for outdoor use to display various information such as news and promotions and advertisements in text, picture or video through the display screen implemented with an LCD (Liquid Crystal Display) panel, a plasma display panel (PDP), etc. The present invention relates to a display device and a method of driving the same, wherein the external temperature of the housing is sensed by a temperature sensor located inside the housing that fixes the panel assembly and the protection plate of the outdoor display device, and the external temperature is preset. When the temperature is lower than one critical temperature, the hot wire positioned at the lower portion of the housing is driven, and when the lower side of the housing has one of an ellipse, a triangle, and a trapezoid whose center is lower than an edge, the hot wire has a lower portion of the housing. It is arranged in a predetermined shape in the center of the side.

Description

Display apparatus for outdoor and operating method thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor display device and a method for manufacturing the same, and particularly, to display various information such as news, publicity and advertisement in the outdoors through a display screen implemented with an LCD (Liquid Crystal Display) panel or a plasma display panel (PDP). The present invention relates to an outdoor display device for displaying texts, pictures, or images, and a driving method thereof.

In general, an outdoor display device displays various information, promotions, advertisements, etc. using text, pictures, or images by using a banner or a signboard. However, in the case of the banner, once displayed characters, pictures, etc., it is difficult to modify and change, and usually discards after displaying the characters, pictures, or images in a one-time period. When the banner is used as an outdoor display device, since the banner is used as a one-time device, there is a problem of causing waste of resources and environmental pollution when using and discarding the banner.

In particular, as banners for advertisement and promotion of goods are installed in random places regardless of place, they are damaging the beauty of the surrounding area. In order to prevent the disorderly installation of such banners, the local governments have designated and posted the posting sites and periods. However, there is a limit that does not satisfy the demand of the company that wants to post the banner, as the specified posting place and period is limited.

Due to these limitations, banners are still installed disorderly, and there is a problem in that wasteful costs are generated when considering the costs of manufacturing banners and dismantling banners as well as local governments. In addition, as described above, when discarding the one-time banners installed in an orderly manner, the banners are made of a material that cannot be recycled, and thus, environmentally harmful substances such as dioxins are generated during incineration, causing environmental pollution.

Therefore, there is an absolute need for an outdoor display device that can fundamentally solve waste of resources, economic loss, and environmental pollution caused by using a banner in an outdoor display device.

On the other hand, a display device generally implemented as an LCD panel has been developed in place of the CRT (Cathod Ray Tube) based on the advantages of being light and simple, low voltage driving and low power consumption. In practice, it is used in various fields. In addition, a display device implemented with a PDP realizes high quality, large size, color, and the like, such as an LCD panel, and has been used in various fields.

The display device implemented by such an LCD panel or PDP is mainly installed in a room with little environmental change, and thus is manufactured to be suitable for indoor use. However, when a display device implemented with an LCD panel or a PDP is used as an outdoor display device, the LCD panel or the PDP may be abnormally operated according to the outdoor environment, causing a malfunction of the outdoor display device.

In particular, a display device implemented with an LCD panel or a PDP may be used to solve problems caused by using a banner to display various information such as news, publicity, advertisements, etc. as texts, pictures, or images outdoors. When used as an outdoor display device, it is difficult to manage an enlarged display device by an LCD panel or a PDP, and the safety and clarity of the display device installed outdoors due to an external environment such as temperature and humidity (e.g., freezing and condensation) can be prevented. There is a problem that cannot be secured.

Accordingly, an object of the present invention is to provide an outdoor display device and a driving method thereof for displaying various information, promotions, advertisements, etc. as text, pictures, or images in the outdoor by using a display device implemented with an LCD panel, a PDP, or the like. .

In addition, another object of the present invention is to display a variety of information and promotions and advertisements such as letters, pictures or images in the outdoors through the display device implemented by LCD panel, PDP, etc. An outdoor display device and a driving method thereof for preventing environmental pollution are provided.

In addition, another object of the present invention is to conveniently manage a display device that displays various information, publicity, advertisements, etc. in text, pictures, or images in the outdoors, and does not damage the aesthetics of the surroundings, such as humidity, Minimizes the effects of temperature, prevents malfunction, prevents freezing of installed outdoor display devices (i.e., prevents icicles and falls) and safely operates them, and prevents condensation of installed outdoor display devices to prevent text, pictures, or images. It is an object of the present invention to provide a display device for outdoor display and a driving method thereof.

In order to achieve the above objects, an outdoor display device of one embodiment of the present invention includes a panel assembly implemented with at least one flat panel panel; A protective plate spaced apart from the panel assembly at a predetermined interval and positioned at a front surface of the panel assembly; A housing fixing the panel assembly and the protection plate; And a heating wire positioned at the bottom of the housing.

A driving method of an outdoor display device according to one embodiment of the present invention includes at least one of an inside and an outside of the housing through a temperature sensor provided in a housing for fixing a panel assembly and a protection plate of the outdoor display device. Sensing the temperature of the place; And driving a heating wire provided on the lower side of the housing when the temperature of at least one of the inside and the outside of the housing is lower than the preset first threshold temperature.

According to another aspect of the present invention, there is provided a method of driving an outdoor display device, wherein the external lower surface of the housing is frozen through an icing sensor provided in a housing for fixing a panel assembly and a protection plate of the outdoor display device. Sensing; And when a icing of the outer lower side of the housing is sensed, driving the heating wire provided in the lower portion of the housing.

According to the present invention, various information, promotions, and advertisements may be displayed as text, pictures, or images in the outdoors by using an outdoor display device implemented by an LCD panel, a PDP, or the like.

In addition, the present invention is to display a variety of information, promotions and advertisements in the outdoors through a display device implemented by LCD panel, PDP, etc. in the form of letters, pictures or video to waste resources and costs and environmental pollution due to the use of banners It can prevent.

In addition, the present invention conveniently manages a device that displays a variety of information, publicity and advertising in the outdoors, such as text, picture or video, and minimizes the influence of the external environment, such as humidity, temperature, etc. without compromising the beauty of the surrounding It prevents freezing of the installed outdoor display device (i.e., prevents icicles and falls), and operates safely and prevents condensation of the installed outdoor display device to display text, pictures, or images more clearly. Can be.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

The present invention proposes an outdoor display device and a driving method of the outdoor display device. Here, the outdoor display device according to the present invention to be described later, through the display screen implemented as an LCD (Liquid Crystal Display) panel, a plasma display panel (PDP) to display a variety of information, such as news, publicity, advertising, etc. in the outdoors Or display it as an image. In particular, the outdoor display device according to the present invention prevents water droplets from freezing outside the housing for assembling the outdoor display device (that is, prevents the formation of icicles and falls), and condenses the water inside and outside the housing (generating frost or laver). And a sensor for positioning the hot wire inside the housing to prevent the sharpness of the display screen from being lowered and driving the hot wire. Next, the outdoor display device according to the exemplary embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external view schematically illustrating an external appearance of an outdoor display device according to an exemplary embodiment of the present invention, FIG. 2 is a structural diagram schematically illustrating a structure of an outdoor display device of FIG. 1, and FIG. 3 is an outdoor view of FIG. 2. FIG. 2 is a cross-sectional view taken along the line II of FIG. 2 to illustrate a structure of a heating wire provided in the display device in more detail.

1 to 3, the outdoor display device 100 is installed based on the support 102 at a location to be installed outdoors, and includes a panel assembly formed by combining a plurality of LCD panels, PDPs, and the like. panel assembly) 110, a protection plate 120 spaced apart from the panel assembly 110 at predetermined intervals to protect the panel assembly 110, and a protection plate 120 positioned in front of the panel assembly 110, and the panel assembly ( 110 and the protection plate 120 includes a housing 130 for assembly by positioning therein.

The panel assembly 110 is a combination of a plurality of LCD panels or PDPs arranged in the form of N × M (N and M is a positive integer), LCD panels or PDPs are arranged in various forms to form a multi-display screen Can be. The panel assembly 110 may allow the arranged LCD panel or PDP to display one screen or display two or more screens as screens having various sizes.

The protection plate 120 includes tempered glass that protects the panel assembly 110 from the outside and maintains the sharpness of the screen displayed by the panel assembly 110. Here, the protective plate 120 may add a film or a coating film to the tempered glass to prevent diffuse reflection from direct sunlight to display the screen displayed by the panel assembly 110 clearly.

The housing 130 has a straight 210 having a lower side in parallel, or water droplets present on an outer lower side of the housing 130 are located at a predetermined portion of the lower side (eg, at an outer lower side of the housing 130). Lowest point) 170 may be implemented in various forms such as elliptical 220, triangular 230, or trapezoidal 240.

In addition, the housing 130 includes a heating wire 140 on the inner lower side of the housing 130 to prevent freezing of the outer lower side of the housing 130 when the temperature is lowered. At this time, the heating wire 140 is arranged in the S-shape 310, the date form 320, or the U-shape 330 as a single heating wire 140 on the inner lower side of the housing 130, or multiple heating wire ( 140a, 140b may be arranged in a U-shape 340, or a straight 350. In addition, it is preferable to use a silicon tube heating wire as the heating wire 140.

In addition, when the lower side of the housing 130 is a parallel straight 210, the heating wire 140 is the housing 130 so that the entire temperature of the inner lower side of the housing 130 is increased by the heating wire 140. ) Is arranged over the entire inner side of the bottom. On the other hand, when the lower side of the housing 130 is an elliptical 220, a triangle 230, or a trapezoidal 240, the inner lower surface predetermined portion 170 of the housing 130 by the hot wire 140 The heating wire 140 is arranged only in a predetermined portion 170 of the inner lower surface of the housing 130 so that the temperature rises. Here, as the heating wire 140 is located only in the predetermined portion 170 of the inner lower surface of the housing 130, the heating wire 140 is located at the entire inner lower surface of the housing 130. The use of the hot wire and the power consumption of the hot wire can be reduced.

In addition, when the external temperature of the housing 130 is lowered, the outer lower surface of the housing 130 by the heating wire 140 located in the entire portion or the predetermined portion 170 of the inner lower surface of the housing 130. It is possible to prevent freezing of the water droplets present in the water or to freeze the icicles generated when the water droplets are frozen by thawing the ice, thereby safely operating the outdoor display device 100.

In addition, the inside of the housing 130 senses the temperature outside the housing 130, and if the detected outside temperature is lower than a predetermined first threshold temperature (for example, freezing point) the temperature for driving the hot wire 140 The sensor 150 is included. Here, the temperature sensor 150 senses the temperature outside the housing 130, in particular, the temperature of the lower side outside the housing 130, so that the temperature of the lower side outside the housing 130 is below the freezing point. In this case, the heating wire 140 is driven to prevent freezing of water droplets existing on the lower side of the housing 130 outside (for example, to prevent icicles).

The temperature sensor 150 controls the heat radiation intensity of the heating wire 140 according to the sensed external temperature. In other words, when the sensed external temperature is lower than the first threshold temperature, the temperature sensor 150 controls the heat ray 140 to radiate to the first temperature, and the second threshold is set lower than the first threshold temperature. When the temperature is lower than the temperature, the heating wire 140 is controlled to radiate heat to a second temperature higher than the first temperature. Here, the second threshold temperature may be a rapid freezing point at which water droplets existing on the lower side outside the housing 130 rapidly freeze, and set the threshold temperatures to two or more threshold temperatures, and the hot wire 140. ) May be radiated to a temperature corresponding to the set threshold temperatures.

In addition, when the single heating wire 140 is arranged on the inner lower side of the housing 130 (310, 320, 330), the voltage having a first level to the heat wire 140 to radiate to the first temperature is the heating wire ( 140 and a voltage having a second level higher than the first level is applied to the heating wire 140 to cause the heating wire 140 to radiate heat to the second temperature. Here, when the threshold temperatures are set to two or more threshold temperatures, and the hot wire 140 is radiated to a temperature corresponding to the set threshold temperatures, the hot wire 140 radiates to the corresponding temperature, respectively. Voltages having different levels depending on the corresponding temperatures are respectively applied to the hot wires.

In addition, when the multiple heating wires 140a and 140b are arranged on the inner lower side of the housing 130 (340 and 350), the multiple heating wires 140a and 140b radiate the first temperature so as to radiate the first temperature. Only some of the heating wires 140b are driven, and both of the multiple heating wires 140a and 140b are driven so that the multiple heating wires 140a and 140b radiate heat to the second temperature. Here, the multiple hot wires 140a and 140b may be implemented with two or more hot wires, the threshold temperatures are set to two or more threshold temperatures, and the hot wire 140 radiates heat to a temperature corresponding to the set threshold temperatures. If so implemented, two or more hot wires are sequentially driven in accordance with the corresponding temperature such that the two or more hot wires radiate to the corresponding temperature, respectively. When the multiple heating wires 140a and 140b are arranged on the inner lower side of the housing 130 (340 and 350), and when the single heating wire 140 is arranged (310,320 and 330), the multiple heating wires 140a and A voltage having a level corresponding to the first temperature and the second temperature may be applied to the multiple heating wires 140a and 140b to cause 140b) to radiate heat to the first temperature or the second temperature.

In addition, the inside of the housing 130 senses the humidity inside the housing 130, in particular, the humidity between the panel assembly 110 and the protective plate 120, if the detected humidity is greater than a predetermined value the heating wire A humidity sensor 160 for driving 140 is included. Here, the humidity sensor 160 detects the inner humidity of the protective plate 120, and if the inner humidity of the protective plate 120 is higher than a predetermined humidity, condensation of water droplets inside the protective plate 120, That is, the hot wire 140 is driven to prevent the formation of frost or steam. In this case, the temperature sensor 130 detects an inner temperature of the protection plate 120, and if the detected temperature is lower than a preset third threshold temperature (for example, dew point), the temperature sensor 130 may be defrosted or formed inside the protection plate 120. The hot wire 140 is driven to prevent the production of steam.

As described above, the outdoor display device according to an exemplary embodiment of the present invention senses temperature and humidity outside or inside the outdoor display device through the temperature sensor 150 and the humidity sensor 160 to drive the hot wire 140 to display the outdoor display. Freezing or condensation of water droplets can be prevented outside or inside the device.

4 is an external view schematically illustrating the external appearance of an outdoor display device according to another exemplary embodiment, and FIG. 5 is a structural diagram schematically illustrating the structure of the outdoor display device of FIG. 4. 4 and 5, the outdoor display device of FIG. 4 and FIG. 5 is different from the temperature sensor 150 and the humidity sensor 160 in the housing 130 of the outdoor display device 100 of FIGS. 1 to 3. The ice sensor is included on the lower side, and the other components are identical. Therefore, hereinafter, only the ice sensor different from the outdoor display device 100 of FIGS. 1 to 3 will be described in detail, and detailed descriptions of other components will be omitted.

Referring to FIG. 4, the outdoor display device 400 is installed based on the support 402 at a location to be installed outdoors, and a housing for assembling the panel assembly 410 and the protection plate 420 therein. The outer lower side of the 430 includes the icing sensors 452, 454, 456, and 458 for driving the heating wire 440 by detecting freezing of water droplets existing on the lower side outside the housing 430 (eg, detecting icicles). .

Here, the housing 430 may have a straight 210 having a parallel lower side like the housing 130 of the outdoor display device described with reference to FIGS. 1 to 3, or may be present on the outer lower surface of the housing 430. The water droplets may be embodied in various forms such as an ellipse 220, a triangle 230, or a trapezoidal 240 to be collected at a predetermined portion 170 of the lower surface. In addition, the housing 430 has a heating wire 440 is located on the inner lower side of the housing 430 to prevent freezing of the outer lower side of the housing 430 when the temperature is lowered, the housing 430 of the housing 430 The heating wire 440 disposed on the inner lower side may be arranged in the S-shape 310, the straight 320, or the C-shaped 330 of the single heating wire 140, or the letters of the multiple heating wires 140a and 140b. It may be arranged in the form 340, or the date form 350.

The icing sensors 452, 454, 456, and 458 may include light emitting parts 452a, 454a, 456a, and 458a that emit light of a predetermined band using a light emitting diode (LED), and the light emitting parts 452a, 454a, Light receiving units 452b, 454b, 456b, and 458b for receiving light emitted from the 456a and 458a. The icing sensors 452, 454, 456, and 458 may be connected to the lower portion outside the housing 430 when the light receiving units 452b, 454b, 456b, and 458b cannot receive the light emitted from the light emitting units 452a, 454a, 456a, and 458a. It senses that water droplets are frozen on the side, and drives the hot wire 440 to thaw the frozen water droplets. The icing sensors 452, 454, 456, and 458 are external to the housing 430 when the light receiving units 452b, 454b, 456b, and 458b receive light emitted from the light emitting units 452a, 454a, 456a, and 458a. It is sensed that water droplets are not frozen on the lower side and do not drive the heating wire 440.

As described above, the outdoor display device according to another embodiment of the present invention senses the freezing of water droplets on the external lower side of the outdoor display device through the icing sensors 452, 454, 456, and 458 to drive the hot wire 440. To prevent freezing of water droplets. Next, the operating system of the outdoor display device according to the exemplary embodiments of the present invention will be described in more detail with reference to FIG. 6.

6 is a structural diagram schematically illustrating a structure of an operating system of an outdoor display device according to example embodiments.

Referring to FIG. 6, the operation system includes outdoor display devices 602, 604, 606 that display various information such as news, promotion, advertisement, etc. in text, pictures, or images, and the outdoor display devices 602, 604, 606. A set top box unit 620 for transmitting a character, a picture, or an image to be displayed to the outdoor display devices 602, 604, 606, and a center for managing and controlling the outdoor display devices 602, 604, 606. The controller 630 and a server 640 for generating and providing a character, a picture, or an image to be displayed by the outdoor display devices 602, 604, and 606.

The outdoor display devices 602, 604, 606 are outdoor display devices implemented according to embodiments of the present invention. The outdoor display devices 602, 604, 606 display various information such as news, promotions, and advertisements on a display screen implemented by an LCD panel or a PDP. Display a picture or video. As described above, freezing and condensation may be prevented through a heating wire, a sensor, or the like, thereby ensuring safety, and maintaining a clear display screen.

The set top box unit 620 allows the outdoor display devices 602, 604, 606 to display characters, pictures, or images generated and provided by the server 640 and to manage and control the central controller 630. Accordingly, the outdoor display devices 602, 604, and 606 operate normally.

The central control unit 630 checks, manages and controls the operation states of the outdoor display devices 602, 604, 606, and remotely manages and controls the failures in the outdoor display devices 602, 604, 606.

The server 640 may include a data server 642 that stores and manages content such as text, pictures, or images to be displayed through the outdoor display devices 602, 604, and 606, a content server 644 that generates the content, and And a control server 646 for centrally controlling the content generated by the content server 644 to be distributed and displayed on the outdoor display devices 502, 504, and 506.

As such, the outdoor display devices 602, 604, 606 are centrally managed and controlled by the central controller 630, and text, pictures, or images displayed on the outdoor display devices 602, 604, 606 by the server 640. This can be centrally created and managed to facilitate operations. Next, an operation process of the outdoor display device according to the exemplary embodiment of the present invention will be described with reference to FIG. 7.

7 is a flowchart schematically illustrating an operation process of an outdoor display device according to an exemplary embodiment of the present invention.

Referring to FIG. 7, in operation S710, the outdoor display device monitors an interior and / or an external environment of a housing. For example, the outdoor display device senses the external or internal temperature of the housing using a temperature sensor located inside and / or outside the housing, and further, detects the internal humidity of the housing using a humidity sensor located inside the housing. do. Or, alternatively, an icing sensor located on the lower outer side of the housing is used to detect whether icicles on the lower outer side of the housing are formed.

Then, in operation S720, the outdoor display device detects water droplets on the outer lower side of the housing as a result of the temperature sensor, the humidity sensor, or the icing sensor, or the inside of the housing (especially between the protective plate and the panel assembly). Determine if water droplets condense. If, as a result of the determination in step S720, water droplets are frozen on the outer lower side of the housing or when water droplets are condensed on the inside of the housing, in step S730, the outdoor display device drives the heating wire located on the lower side of the housing. To prevent freezing and / or condensation of the droplets.

If there is no freezing of water droplets on the outer lower side of the housing and condensation of water droplets on the inside of the housing as a result of the determination in step S720, the process returns to step S710 through a temperature sensor, a humidity sensor, and a freezing sensor. Detects freezing and / or condensation of water droplets.

As described above, the outdoor display device according to the embodiments of the present invention senses water droplet freezing outside the housing of the outdoor display device and water droplet condensation inside the housing through a temperature sensor, a humidity sensor, and a icing sensor to drive a hot wire. Accordingly, it is possible to prevent freezing and condensation of water droplets, thereby minimizing the influence of external environment, such as humidity and temperature, thereby ensuring safety without malfunction, and displaying characters, pictures, or images more clearly.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is an external view schematically illustrating an external appearance of an outdoor display device according to an exemplary embodiment of the present invention.

FIG. 2 is a structural diagram schematically illustrating a structure of the outdoor display device of FIG. 1. FIG.

3 is a structural diagram illustrating a structure of a heating wire provided in the outdoor display device of FIG. 2.

4 is an external view schematically illustrating an external appearance of an outdoor display device according to another exemplary embodiment of the present invention.

5 is a structural diagram schematically illustrating a structure of an outdoor display device of FIG. 4.

6 is a structural diagram schematically illustrating a structure of an operating system of an outdoor display device according to example embodiments.

7 is a flowchart schematically illustrating an operation process of an outdoor display device according to an exemplary embodiment of the present invention.

Claims (17)

delete delete delete In the outdoor display device, A panel assembly implemented with at least one flat panel; A protective plate spaced apart from the panel assembly at a predetermined interval and positioned at a front surface of the panel assembly; A housing fixing the panel assembly and the protection plate; A temperature sensor detecting whether a temperature of at least one of the inside and the outside of the housing is lower than a preset threshold temperature; An icing sensor for detecting icing of the outer lower side of the housing; And It includes a heating wire located in the lower portion of the housing, The lower side of the housing has one of elliptical, triangular, and trapezoidal shapes whose center is lower than the edge, and the heating wire has one of a straight, c-shaped, S-shaped, and X-shaped shape at the center of the lower side of the housing. The display device of claim 1 or 2, wherein heat is emitted at a level of at least two levels corresponding to a detection result of at least one of the temperature sensor and the freezing sensor. The method of claim 4, wherein When the external temperature of the housing is lower than the first threshold temperature, a voltage having a first level is applied to the hot wire to radiate heat to the first temperature, and the external temperature of the housing is preset to be lower than the first threshold temperature. And a voltage having a second level higher than the first level is applied to the hot wire when the temperature is lower than a second threshold temperature. The method of claim 4, wherein when the heating wire is a multiple heating wire, When the external temperature of the housing is lower than the first threshold temperature, some of the multiple heating wires are driven, and when the external temperature of the housing is lower than the second threshold temperature which is lower than the first threshold temperature, all of the multiple heating wires are An outdoor display device, characterized in that driven. The method of claim 4, wherein And a humidity sensor configured to detect whether an internal humidity of the housing is higher than a predetermined threshold humidity, wherein the hot wire is driven in accordance with a detection result of the humidity sensor. The method of claim 7, wherein And the temperature sensor further detects whether an internal temperature of the housing is lower than a preset third threshold temperature corresponding to the threshold humidity. delete The method according to any one of claims 4 to 8, And the hot wire is a silicon tube hot wire. A panel assembly implemented with at least one flat panel; A protective plate spaced apart from the panel assembly at a predetermined interval and positioned at a front surface of the panel assembly; A housing fixing the panel assembly and the protection plate; And a heating wire positioned below the housing, wherein the lower side of the housing has one of an ellipse, a triangle, and a trapezoid whose center is lower than an edge, and the heating wire has a straight shape at the center of the lower side of the housing. In the driving method of the outdoor display device arranged in one of the form of C, S, X, a) senses a temperature of at least one of the inside and the outside of the housing through a temperature sensor provided in a housing that fixes the panel assembly and the protection plate of the outdoor display device, and is provided on an outer lower side of the housing; Detecting freezing of the outer lower surface of the housing through a frozen ice sensor; And b) driving the hot wire to a level of at least two levels corresponding to a detection result of at least one of the temperature sensor and the icing sensor. The method of claim 11, wherein b), When the external temperature of the housing is lower than the first threshold temperature, a voltage having a first level is applied to the heating wire to radiate heat to the first temperature, and the external temperature of the housing is preset to be lower than the first threshold temperature. And a voltage having a second level higher than the first level is applied to the hot wire when the temperature is lower than a second threshold temperature. The method of claim 11, wherein when the heating wire is a multiple heating wire, step b), When the external temperature of the housing is lower than the first threshold temperature, some of the multiple heating wires are driven. When the external temperature of the housing is lower than the second threshold temperature, which is lower than the first threshold temperature, all of the multiple heating wires are removed. A drive method for an outdoor display device, characterized in that for driving. The method according to any one of claims 11 to 13, wherein step a) comprises: And detecting the internal temperature of the housing through the temperature sensor, and detecting the internal humidity of the housing through a humidity sensor provided in the housing. The method of claim 14, wherein b), And driving the hot wire when the internal humidity of the housing is higher than a predetermined threshold humidity. The method of claim 15, wherein b), And driving the hot wire when the internal temperature of the housing is lower than a preset third threshold temperature. delete

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