KR20120112889A - Display heater using a surface type hearting elements - Google Patents

Abstract

Exothermic display using the planar heating element of the present invention is a thermo-reactive display unit which is applied to one or both sides of the temperature discoloring Zion pigment changes color according to a variable temperature; A planar heat generating unit generating heat to vary a temperature of the thermal reaction display unit; And a controller configured to control heat generation of the planar heating unit in synchronization with a signal input from the outside, wherein the planar heating unit has a plurality of heating frames coated with an electrically conductive material disposed independently of each other so that the plurality of heating frames are uniform. Or a planar heating element which continuously generates a variable temperature at a time interval, and generates heat of the planar heating part in response to a signal input to the controller, thereby changing color of one or both sides of the thermal reaction display part, There are advantages such as a combination of a heating function that provides stable heat indoors and outdoors in winter and aesthetic display function that doubles the visual effect by implementing various dynamic images.

Description

Heat dissipation display using surface heating element {Display Heater using a surface type hearting elements}

The present invention relates to an exothermic display using a planar heating element, and more specifically, a billboard, a bulletin board, a picture frame to which a heating function for heating the air convection functionally and a dynamic image in which colors are differently expressed according to temperature change are apparent. The present invention relates to a heat generating display using a planar heating element having a role as an aesthetic decoration or a billboard that doubles the visual effect according to the four seasons and day and night use convenience, such as a partition, a wallpaper, a floorboard, a screen, a roll projector, and a beam projector screen.

Recently, a planar heating element capable of pleasant radiant heating without the risk of burns or fires by emitting far infrared rays has been greatly spotlighted, and development and application of a planar heating element using self-resistance of carbon has been actively conducted. Sheet-shaped carbon flat heating elements with electrodes attached to both sides of one side of the heating element and laminated with polymer insulator on both sides are easy to control temperature, are not polluted by air, are hygienic and noiseless, and have far-infrared rays which are beneficial to human body. Due to its emission characteristics, it is widely used in residential heating, commercial, agricultural and various industrial heating.

In particular, in recent years, using a planar heating element attached to or printed a picture or photo, a planar heating device that combines the heating function and the role as a visual decoration or a billboard produced in the form of a picture frame (pattern) or partition (Registered Patent No. 10-0767753) , Registration Room No. 20-0340049, Registration Room No. 20-0352236, Registration No. 10-0767753, Registration No. 10-0997529 have been proposed.

However, the planar heating device, which combines the conventional heating function with the role of visual decoration, provides the planar heating element in the form of a flat fixed frame provided in a thick frame (frame) to realize a static image in the summer without a heating device. It is difficult to expect interior effects beyond a simple picture frame, limiting spatial and seasonal usability.

Accordingly, a planar heating frame (public patent No. 10-2010-0077606) having a discoloration, light emission, and aroma function, which can be visually perceived according to the exothermic temperature, has been proposed, but also this conventional planar heating element is thick. Equipped in the frame of the frame form, spatial use is limited and dynamic image is also limited.

In addition, the conventional planar heating element is difficult to repair partly when the electrically conductive carbon composition or wire is short-circuited, and the entire planar heating element must be replaced. There is a drawback in the use of no power saving function, and in particular, the surface heating device in the form of a frame having a decorative effect, the visual effect is greatly limited by the exposure of the single-sided rather than double-sided.

The present invention is to solve such a conventional problem, it is an object of the present invention is a plurality of heating frame is applied to the conductive material is connected to the heating line of the grid pattern form at regular intervals are arranged independently from each other, input from the outside Each heating frame in synchronization with the generated signal generates a planar heating element that generates a uniform or variable heat, so that even if the electrically conductive material or wire of a specific heating frame is shorted, it does not affect the other heating frame, and a plurality of heating frames are inherent. The heating element can be cut to any size and used at low cost even for partial repair and replacement, thereby providing a planar heating element for heating having excellent electrical and mechanical properties and excellent use expandability.

Another object of the present invention is to apply a thermochromic Zion pigment on one or both sides of the planar heating element so that each color corresponding to the plurality of heating frames vary in accordance with the temperature change based on the threshold temperature, and additionally retroreflective The present invention provides a heat dissipation display using the planar heating element which can increase the functionality of four seasons and day and night products by applying a LED bulb synchronized with a sheet or a sensing signal input from the outside.

In order to achieve the above object, the present invention provides a thermochromic Zion pigment is applied to one or both sides of the thermal reaction display unit that changes color depending on the variable temperature; A planar heat generating unit generating heat to vary a temperature of the thermal reaction display unit; And a control unit controlling heat generation of the planar heating unit in synchronization with a signal input from the outside, wherein the planar heating unit has a plurality of heating frames coated with electrically conductive material connected to a heating line in a grid pattern at a predetermined interval. Arranged independently, the plurality of heating frame is composed of a planar heating element that the temperature is sequentially variable heating at regular or time intervals, the heat generation of the planar heating unit is changed in response to the signal input to the control unit to display the thermal reaction An exothermic display using a planar heating element, characterized in that the color of one side or both sides of a part is changed.

In order to achieve the above another object, the thermal reaction display unit is configured in contact with the display auxiliary unit for retroreflecting the incident light, and further, the thermochromic Zion pigment is applied to one surface of the display auxiliary unit in contact with the thermal reaction display unit. It proposes a heat generating display using a planar heating element, characterized in that configured to include.

In order to achieve the above object, the sensor unit consisting of a light sensor, a motion sensor and a temperature sensor; A light emitting unit including a solar heat collecting plate, a solar charger, and a plurality of LED bulbs; And a plurality of relays connected to the plurality of LED bulbs and the plurality of heat generating frames, respectively, to sequentially supply voltages at time intervals independently of each other, and wherein the control unit detects the input from the sensor. The present invention provides a heat generating display using a planar heating element, characterized in that the plurality of LED bulbs and the plurality of heat generating frames are controlled to emit light and generate heat in synchronization with signal types.

At this time, the control unit first supplies an input voltage applied from the solar charger to the plurality of LED bulbs and the plurality of heating frames in synchronization with the type of the detection signal input from the sensor, and compares the input voltage with the reference voltage. When the input voltage does not reach the reference voltage, a general input voltage may be applied to the plurality of LED bulbs and the plurality of heating frames.

In the heating display using the planar heating element according to an embodiment of the present invention, a plurality of heating frames in which electrically conductive materials are connected to a heating line in a grid pattern form at regular intervals are disposed independently of each other, and synchronized with a signal input from the outside. By using a planar heating element in which each heating frame generates a uniform or variable heat, even if the conductive material of a specific heating frame or the wire of the heating line is shorted, it does not affect the other heating frame by voltage control, so that there is a risk of electric shock or fire. In addition, it can be used for long-term heating stably, and by applying temperature discoloring pigments on one or both sides of the planar heating element, each color corresponding to a plurality of heating frames varies according to the temperature change based on the critical temperature. By multiplying the dynamic display function By attaching the ear reflection sheet or connecting the light sensor, motion sensor, and temperature sensor to each other, it is possible to emit light of the LED bulb using solar heat and carbon-based heating element using carbon automatically synchronized with the sensing signal input from the external sensor. Implemented eco-friendly use of the product has the advantage of greatly expanding the usability of the product to aesthetic decoration or dynamic billboards by doubling the visual effect according to the four seasons and day and night convenience.

1 is a plan view showing an embodiment of the configuration of a planar heating element using a conductive ink composition.
Figure 2 is a plan view showing an embodiment of the configuration of the planar heating element using the conductive carbon fiber.
Figure 3 is a plan view showing an embodiment of the configuration of the planar heating element using a conductive ink reinforced carbon fiber.
Figure 4 is a plan view showing an embodiment of the electrode configuration of the planar heating portion using the planar heating element shown in FIG.
FIG. 5 is a cross-sectional view illustrating an embodiment of a heat generation display configuration using the planar heat generation unit shown in FIG. 4.
FIG. 6 is a state diagram briefly configuring power control of the planar heating unit illustrated in FIG. 4.
FIG. 7 is a block diagram illustrating an embodiment of a configuration of the controller illustrated in FIG. 6.
8 is a control flowchart of a heating display according to an embodiment of the present invention.
FIG. 9 is a diagram illustrating a schematic embodiment of a configuration of the thermal reaction display unit illustrated in FIG. 5.
10 is a perspective view showing the configuration of a safety bulletin board according to an embodiment of the present invention.

Hereinafter, an exothermic display using a planar heating element according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view showing an embodiment of the configuration of a planar heating element using a conductive ink composition, the planar heating element 100a shown is a conductive ink composition 150a, the heating frame (110a, 120a, 130a, 140a) ), And an insulating layer 191.

The planar heating element (100a) is a plurality of heating frame (110a, 120a, 130a, 140a) is applied to the conductive ink composition 150a is connected to the heating line of the grid pattern at a predetermined interval independent of each other on the insulating layer 191 The heating frames 110a, 120a, 130a, and 140a bonded to the insulating layer 191 may be separated from each other and may be separated from each other.

In this case, the conductive ink composition 150a is suitably made of a carbon compound, and the insulating layer 191 generally uses a PET material. However, the conductive ink composition 150a may be formed by screen printing, transfer printing, or direct coating. The inorganic material which can be applied, magnetic, glass, fibrous, resin, or the like may be used. The conductive ink composition 150a is preferably applied in a lattice pattern at regular intervals.

However, depending on the user's choice or the material of the insulating layer 191 may be applied similarly to the figure pattern applied to the upper or lower surface of the planar heating element (100a).

For example, each of the patterns "in", "in", "1", "1", "4" is coated on the insulating layer 191 and printed, but each of the patterns to form a heating frame and each of the patterns The color change may be derived by applying a temperature-coloring Zion pigment on the upper surface of the heating frame in the same way as a pattern or by attaching a Zion ink sticker cut out in a similar pattern.

2 is a plan view showing an embodiment of the configuration of the planar heating element using the conductive carbon fiber, the planar heating element 100b shown is a conductive carbon fiber 150b, heating frame (110b, 120b, 130b, 140b) ), And an insulating layer 191.

The planar heating element 100b using the conductive carbon fiber 150b woven from a fiber containing electrically conductive carbon is an electrically conductive material constituting a heating line, unlike the planar heating element 100a using the conductive ink composition 150a of FIG. 1. The conductive carbon fiber 150b is used, and there is no difference in the gist functional properties of the present invention.

However, the planar heating element 100b using the conductive carbon fiber 150b has a lower risk of shorting the heating line than the planar heating element 100a using the conductive ink composition 150a, while the conductive carbon fiber 150b is also shown in FIG. 1 It is formed thicker than the conductive ink composition 150a and the heat generating layer applied to the outer surface coating of the planar heating element 100b is also formed thick, resulting in high heat resistance.

Accordingly, the planar heating element 100a using the conductive ink composition 150a having low thermal resistance and fast heat transfer is excellent in realizing a delicate and dynamic display, and has a relatively high thermal resistance but low risk of generation of short circuit. The planar heating element (100b) using the (150b) is advantageous to a heating device with a lot of contact, such as a floor plate.

Figure 3 is a plan view showing an embodiment of the configuration of the planar heating element using the conductive ink-reinforced carbon fiber, the planar heating element 100c shown is a conductive ink-reinforced carbon fiber 150c, heating frame (110c, 120c) , 130c and 140c, and an insulating layer 191.

The conductive ink-reinforced carbon fiber 150c may bond the conductive carbon fiber 150b of FIG. 2 to the outer surface of the planar heating element 100a formed by coating the conductive ink composition 150a of FIG. The planar heating element 100c using the conductive ink-reinforced carbon fiber 150c is formed by being impregnated with a thermoplastic resin such as PET, and the planar heating element 100c is the timed planar heating elements 100a and 100b of FIGS. 1 and 2. ) And the main functional characteristics of the present invention.

However, the planar heating element 100c using the conductive ink-reinforced carbon fiber 150c has less risk of disconnection and stable heat transfer than the planar heating elements 100a and 100b shown in FIGS. 1 and 2, and thus has excellent electrical and mechanical properties. The outer surface of the side on which the conductive ink composition 150a is applied is suitable for use as a display function for realizing a delicate dynamic image, and the outer surface of the side on which the conductive carbon fiber 150b is bonded is heated by a simple dynamic image. Ideal for use as a feature.

The present invention has been described as a preferred embodiment for the planar heating element in the heating display using the planar heating element of the present invention, but the present invention is not limited thereto and may be variously modified within the scope not departing from the gist of the invention. Of course.

For example, as illustrated in FIGS. 1, 2, and 3, a plurality of heating frames may be partially overlapped with one surface or both surfaces of the insulation layer, and the insulation layer 191 may have a curved surface or It may be a planar body.

In addition, if necessary, the plurality of heating frames bonded to the insulating layer 191 may be cut to any size by being separated from other heating frames, and the plurality of heating frames may be configured in various patterns and geometric patterns. Can be.

Figure 4 is a plan view showing an embodiment of the electrode configuration of the planar heating portion using the planar heating element shown in Figure 3, the planar heating element 100 is a conductive ink reinforced carbon fiber 150, heating frame ( 110, 120, 130, 140, and an insulating layer 191 further includes an electrode 160 and a polar portion 170 to form a planar heating portion (see 230 of FIG. 5).

As shown, the pole line 170 is for applying stable heat to the heating line coated with the conductive ink-reinforced carbon fiber 150, and the copper plate and carbon fiber on both sides of the heating frame (110, 120, 130, 140). , Carbon ink, and the like may be applied. The electrode 160 may be a conductive paste for an electrode such as metal, carbon, alloy, oxide, semiconductor, or the like.

FIG. 5 is a cross-sectional view showing an embodiment of a heat generation display configuration using the planar heat generation unit shown in FIG. 4, wherein 101a of FIG. 5 is a cross-sectional view of a heat generation display having a display function of one side, and FIG. This is a cross section of a double-sided heating display with display function.

The illustrated heating display includes the conductive ink-reinforced carbon fiber 150, the heating frames 110, 120, 130, and 140, and the pole lines 170, the adhesive layers 180 and 181, and the insulating layer together with the electrode 160 of FIG. 4. 190 and 191, and the heat dissipation unit 230 and the color change thermal pigment on one surface of the planar heating unit 230 to generate heat to change the temperature of the thermal reaction display unit 200 and the general pigment and printing layer And a heat reaction display unit 200 configured to change color according to a variable temperature based on a threshold temperature, and a display auxiliary unit 210 for retroreflecting the heat reaction display unit 200.

At this time, the one-side heating display 101a further includes a heat insulation layer 220 under the planar heating unit 230, and the double-sided heating display 101b includes the thermal reaction display unit 200a and the display auxiliary unit 210a at one side. It includes more.

The display auxiliary parts 210 and 210a may include a reflective retroreflective sheet including a cover group layer 213, a reflector group layer 211 formed of a microprism or glass beads, an adhesive layer 212, a base film layer 214, and the like. According to the manufacturing order and manufacturing process of the printing or direct coating method, other retroreflective sheet or the planar heating portion 230, the thermal reaction display unit 200 is a base film layer ( 214 may be applied directly, and the application of the display assistants 210 and 210a may be omitted depending on the usability.

In addition, the thermal reaction display unit 200 may be directly printed or applied to the insulating layers 190 and 191 of the planar heat generating unit 230, and may be printed in advance or directly applied with a brush, such as Hanji, resin, or fiber. May be directly bonded to the insulating layers 190 and 191 of the planar heating part 230.

The constituent materials such as the adhesive layers 180 and 181, the insulating layers 190 and 191, and the heat insulating material layer 220 are not particularly limited as long as they do not have a chemical reaction at the time of variable heating, and a material using a known technique may be used. Do.

However, among the composition of the conductive ink composition 150a, the conductive carbon fiber 150b, and the conductive ink reinforcing carbon fiber 150c, the electrically conductive powder is suitably about 50 to 300 mesh for stable conduction and calorie control. However, when the printing method is used, it is preferable to have a particle size of about 80 to 150 mesh to prevent ink bleeding.

6 is a state in which the power control of the planar heating unit shown in FIG. 4 is briefly configured, and the heating display shown in FIG. 4 includes heating frames 110, 120, 130, and 140 made of conductive ink reinforced carbon fibers (FIG. 4. 150); The electrode 160, the polar wire part 170, the controller 300, the safety temperature sensor wire 351a, the negative (−) heating element connecting line 160a, and the positive (+) heating element connecting line 160b may be included.

Negative (-) heating element connecting line 160a and positive (+) heating element connecting line 160b, which is a heating element connecting line that independently applies electricity to the planar heating unit 230, have the number of heating frames 110, 120, 130, and 140. It consists of the same strands as.

The safety temperature sensor line 351a that reads the temperature value is suitable to be installed where local heating of the planar heating element is likely to occur, and preferably, at the center of the heating frame 110, 120, 130, 140, if possible.

FIG. 7 is a block diagram illustrating an exemplary embodiment of the configuration of the control unit illustrated in FIG. 6. The illustrated control unit (FIG. 6) includes a power input unit 310, a constant voltage unit 320, and a power switching unit. 330, a microcomputer 340, a sensor unit 350, a display unit 360, a power output unit 360, and a plurality of relays 371 to 373.

The power input unit 310 supplies a heating voltage supplied from the control unit 300 to the planar heating unit 230, and the constant voltage unit 320 lowers the supplied voltage and outputs it to the power switching unit 330.

The constant voltage unit 320 may supply power to the power switching unit 330 by lowering the AC voltage supplied to the power input unit 310 from the outside to DC 5V.

At this time, the constant voltage unit 320 rectifies and filters a typical 220V AC input voltage, and then performs DC / DC converting to output a 12V constant voltage and simultaneously drops the 12V constant voltage to DC 5V to supply a power switch. 330 may be applied.

In addition, the voltage supplied from the outside may be applied by a solar charger, etc. In this case, the constant voltage unit 320 may be supplied to the power switching unit 330 by treating the required constant voltage.

When the power switching unit 330 is turned on in synchronization with an external signal, the power switching unit 330 is supplied to the plurality of relays 371 to 373 through the power output unit 360.

The microcomputer 340 driving the 5V constant voltage from the constant voltage unit 320 controls the signal of the sensor unit 350 such as a program for controlling a preset temperature or time, light sensing and motion sensing, or touch sensing and temperature sensing. And a control signal input after the turn-on signal of the power switching unit 330 is input to the sensor unit 350 and the display unit 360. The temperature corresponding to the voltage variation rate detection signal of the unit 350 is displayed on the display unit 360 and supplied from the power output unit 360 according to the current set temperature or the preset operation control program displayed on the display unit 360. A heating signal for applying an appropriate voltage to the plurality of relays 371 to 373 for heating the heating frames 110, 120, 130, and 140 may be output using the voltage.

At this time, the microcomputer 340 sequentially switches the plurality of relays 371 to 373 corresponding to the heating frame such that the plurality of heating frames 110, 120, 130, and 140 may be driven independently of each other at variable temperatures. ), And when the plurality of relays are configured as n and the heating frames corresponding to the n relays are configured as n, the thermal reaction display unit 200 on one or both sides of the n heating frames is also included. It can be divided into n or 2n regions to react.

For example, the microcomputer 340 may sequentially apply voltages to a plurality of heating frames at a time interval of at least 0.5 seconds, and the critical temperature of the color fading Zion pigment applied to both surfaces of the thermal reaction display unit, that is, 40 degrees on one surface thereof. In the case of applying a color-changing Zion pigment with a color change in the range of 60 degrees and a Zion pigment with a color change in the range of 0 to 20 degrees on the other side, the plurality of voltages corresponding to the critical temperature of each temperature range The heating frames may be sequentially output.

In addition, the microcomputer 340, the heating frame 110, 120, 130, 140 is a heating frame that operates abnormally among the heating frame when the abnormal operation is exceeded to the minimum temperature or the maximum temperature preset by a short circuit or disconnection The bimetal can be used to control the power supply of the relay corresponding to the abnormally driven heating frame so as not to exceed this set temperature.

On the other hand, the power input unit 310 includes a solar heat collecting plate and a solar charger on one side, and connected to a plurality of LED bulbs and the plurality of LED bulbs, respectively, a plurality of sequentially supplying voltage at a time interval independent of each other The microcomputer 340 may further include relays, and the microcomputer 340 may control the plurality of LED bulbs to variably emit light in synchronization with a type of a detection signal input from the sensor unit 350.

In addition, the microcomputer 340 first supplies an input voltage applied from the solar charger to the plurality of LED bulbs and the plurality of heating frames in synchronization with the type of the sensing signal input from the sensor unit 350. When the input voltage is less than the reference voltage by comparing the voltage and the reference voltage, a general 220V AC input voltage may be applied to the plurality of LED bulbs and the plurality of heating frames.

For example, the microcomputer 340 automatically synchronizes when the darkness and an operation signal are simultaneously detected after sunset from a light sensor and a motion sensor to apply power input from the solar charger for a predetermined time according to a preset motion control program. A light emitting signal can be output to the plurality of relays corresponding to the LED bulbs of the LED bulb. Accordingly, the heating signal may be output to the plurality of relays corresponding to the plurality of heating frames by applying the normal 220V AC input voltage for a predetermined time.

On the other hand, even if the microcomputer 340 is composed of a general control unit combined by a known technique, there is no difference in the configuration of the function.

8 is a control flowchart of a heating display according to an embodiment of the present invention.

In detail, in step S10, when the power switching unit 330 is turned on, external power is applied to the microcomputer 340 through the constant voltage unit 320 at the power input unit 310 (step S10). Perform the standby mode of S20).

In step S30, the microcomputer 340 determines the user input or manipulation for the advertisement mode and the heating mode, and if there is a user input or manipulation, proceeds to step S31 and otherwise proceeds to step S40.

In step S31, the microcomputer 340 determines the user input or manipulation for the manual advertisement and the automatic advertisement, and if there is a user input or manipulation, proceeds to step S32 to perform the manual advertisement mode. Proceed to S33).

In step S33, the microcomputer 340 determines a user input or manipulation for the automatic advertisement, and if there is a user input or manipulation, proceeds to step S35 to perform a sensor advertisement mode, otherwise, in step S34. Proceed with normal automatic advertising mode.

At this time, the microcomputer 340 automatically executes the sensor advertisement mode in step S35 to perform a preset operation control program in synchronization with the type of the detection signal input from the outside according to the user's selection, or the preset operation control program. In operation S34, the normal automatic advertisement mode is performed.

In step S36, the microcomputer 340 compares a preset safety temperature with a current reference temperature of the heating frames 110, 120, 130, and 140, and if the current reference temperature is greater than or equal to the safety temperature, power is supplied to the heating frame. Blocking proceeds to step S20 to perform a standby mode, otherwise proceeds to step S37.

At this time, if the current reference temperature of any particular heating frame among the heating frames 110, 120, 130, and 140 is greater than or equal to a safety temperature, the microcomputer 340 cuts off the power supply to the relay corresponding to the heating frame (S20). You can set it up to proceed.

In step S37, the microcomputer 340 operates the built-in timer to count the elapsed time of the progress mode (that is, the power saving standby time of the power saving function), and if the elapsed time is equal to or greater than the reference time, step S20. If not, proceed to step S38.

In step S38, the microcomputer 340 determines the user cancel input or cancel operation, and if there is a user input or operation, proceeds to step S20 to perform a standby mode, otherwise proceeds to step S39 to present Performs the mode and proceeds to step S36.

In step S40, the microcomputer 340 determines the user input or manipulation for the heating mode, and if there is a user input or manipulation, proceeds to step S41, otherwise proceeds to step S20 to perform the standby mode. do.

In step S41, the microcomputer 340 compares the temperature preset by the user with the current reference temperature of the heating frames 110, 120, 130, and 140. The power is applied to proceed to step S42 to perform the automatic heating mode and proceed to step S36, otherwise proceed to step S43.

In step S43, the microcomputer 340 determines a user input or manipulation for the heating temperature setting, and if there is a user input or manipulation, proceeds to step S44 to perform the automatic heating mode based on the set temperature and performs the step ( S36), otherwise, go to step S45.

In step S45, the microcomputer 340 determines the user input or manipulation for the separated heating mode operation of dividing the heating frames 110, 120, 130, and 140 into specific sections, if there is a user input or manipulation. In step S46, the separation heating mode is performed based on the separated heating frame, and the flow proceeds to step S36. Otherwise, the flow goes to step S47.

In step S47, the microcomputer 340 determines the user input or manipulation for the power saving heating, and if there is a user input or manipulation, the microcomputer 340 proceeds to step S48 to perform the power saving heating mode based on the preset temperature. S36), otherwise, go to step S49.

In step S49, the microcomputer 340 determines a user input or manipulation for the reservation heating, and if there is a user input or manipulation, the microcomputer 340 proceeds to step S50 to perform the reservation heating mode based on the set time and in step S36. If not, proceed to step S20 to perform the standby mode.

FIG. 9 is a schematic diagram illustrating an exemplary embodiment of the thermal reaction display unit illustrated in FIG. 5, wherein color change is performed on the entire area of one surface (200 of FIG. 5) or the entire surface of the both surfaces (200a of FIG. 5). One embodiment is shown.

Referring to FIG. 9, the thermal reaction display unit may correspond to n heating frames (see 110, 120, 130, and 140 of FIG. 4) of the planar heat generating unit having a temperature variable independently of each other under the control of the controller 300. The thermal reaction display unit 200 or the two-sided thermal reaction display unit 200a may also be divided into n or 2n regions (both sides), respectively, so that colors may be changed.

For example, the thermal response display unit 200 on one surface of which the color change is displayed in the entire area of the surface is the background color 401P and the foreground color of the painted person pattern as shown in 400 of FIG. 9 in the standby mode step S20 of FIG. 8. Although only 402P is shown, when the heating frames 110, 120, 130, and 140 are driven independently of each other at variable time intervals, the Zion corresponding to the heating frames 110, 120, 130, and 140 is variable. Pigment-coated thermal reaction display unit 200 as shown in 410, 420, 430, 440 of Figure 9, each color (110P, 120P, 130P, 140P) sequentially appear, both sides of the thermal reaction display unit Another aspect of 200a may correspond to the heat generating frames 110, 120, 130, and 140 to derive a color change as shown in 450 of FIG. 9.

In this case, as shown in 410, 420, 430, and 440 of FIG. 9, a power of “Power on” indicating that the heating display is being driven in a turn-on state may be displayed. As shown in Figure 460, the figure pattern (403P) and the QR code (Quick Response Code) figure (404P) may be used to derive the two-color change by the pattern coated with Zion pigment.

In addition, as shown in 470 of FIG. 9, a three-color change may be derived from a pattern of “heat display” and a pattern coated with a Zion pigment, such as a “Safe Check” pattern as illustrated in 480 of FIG. 9.

For example, in consideration of the summer temperature and the human body temperature in Korea, the minimum critical temperature of the thermal reaction display unit 110P is 40 degrees, 120P is 45 degrees, 130P is 50 degrees, corresponding to each of the heating frames 110, 120, 130, and 140, 140P may be applied to Zion pigment so that the color changes with each change of 5 degrees with respect to 55 degrees.

In this case, the thermal reaction display unit 110P corresponding to the heat generating frame 110 uses Zion pigment, which is expressed in black, but the coated black “Power on” pattern portion prints without Zion pigment as a margin. When the power is controlled to be applied at a preset reference temperature of 40 degrees, a pattern of "Power on" indicating that the heating display is being driven in a turn-on state continues to appear.

In addition, the thermal reaction display unit 140P corresponding to the heating frame 140 appears black at 460 of FIG. 9 at 55 degrees, and a “heating display” pattern is derived at temperature 60 degrees as shown at 470 of FIG. 9. At 65 degrees, as shown in 480 of FIG. 9 indicating that the controller 300 has reached the preset safety temperature of 65 degrees, a “Safe Check” pattern may appear.

Meanwhile, FIG. 9 illustrates a schematic embodiment showing the configuration of the thermal reaction display unit shown in FIG. 5 for clarity. When using actual Zion ink, it is necessary to emphasize the letters by applying Zion ink to general ink. If the background color of the general ink is dark and the Zion ink is bright, the concealment power is lowered and the background color is protruded.For more certain color change, the background color is white and the Zion ink uses dark colors such as Black and Dark blue. It is desirable to derive the white color of the background color by including the character shape as the non-display area.

In addition, in the case of combining Zion ink and general ink, the amount of Zion ink generally depends on the color power of general ink, so the amount of use varies depending on paint, silk screen ink, acrylic paint, etc. In the case of the above-mentioned Zion ink combination, it is preferable to allow a large temperature variation in consideration of the variable heating rate of the heating temperature and the speed of returning to the primary color due to the hysteresis phenomenon when the temperature falls.

On the other hand, in the present invention, the temperature range of the Zion ink is preferably from minus 15 degrees to 60 degrees in view of 0 degrees to 60 degrees, which is a proper temperature range for the heat generation of the planar heating unit 230.

10 is a perspective view showing the configuration of a safety bulletin board according to an embodiment of the present invention.

As shown in 500 of FIG. 10, the safety bulletin board using solar heat to which the heat generating display according to the present invention is applied is preferably installed at a place where sunlight can be received, and the safety bulletin board is shown in 510 of FIG. 10. The solar heat collecting plate 511 on the upper side, the light detection and motion detection sensor 512 and the LED bulb 513 is attached to one side of the bulletin board, and the light reflection cone 514 that can reflect and reflect the light of the LED bulb 513 enlarged. ) May be included.

In this case, the safety bulletin board further includes a solar charger, and the heating display control unit 300 according to the present invention selectively uses the voltage of the solar charger or a general 220V AC input voltage to generate a heating frame (110, 120, 130 and 140) and the LED bulb 513 may be powered.

In addition, the heating display control unit 300 according to the present invention may apply power to each of the redundant sensor or according to the signal control by the light sensor, motion sensor, temperature sensor.

That is, referring to 510, 520, and 530 of FIG. 10, when the motion is detected after sunset at night, the controller 300 may be automatically supplied with power to the LED bulb 513 and the heating frame. When the motion is detected at 5 degrees, power may be applied to the heating frame.

In this case, the controller 300 may apply power to the LED bulb 513 in preference to the general 220V AC input voltage using the voltage of the solar charger.

When installing the safety bulletin board applying the heating display according to the present invention in the bus station or rare rain zone, the automatic light is only turned on when there is a person at night, when the operation of the person is detected in the cold winter electricity resources It can satisfy both safety and heat while saving money.

In addition, 540 of FIG. 10 shows a rear surface of the safety bulletin board. The heating display using the planar heating element according to the present invention may perform a visual display function and a heating function using both sides.

In particular, as described above in the description of FIG. 1, the simple pattern illustrated in 541 of FIG. 10 forms an independent heating frame having a pattern shape and is applied to overlap with another heating frame to generate low temperature heat using only solar heat at low temperatures such as winter. You can easily derive color change by yourself.

In addition, by using a Zion pigment that changes color even without a separate heating function below minus 5 degrees, the symbol “551 before my house first” is shown in 550 of FIG. It can double the visual effect as.

Meanwhile, embodiments according to the present invention are not limited to the above-described bulletin board, and are not limited to one or two sides, curved and flat surfaces, materials and products, such as billboards, picture frames, partitions, wallpaper, floorings, screens, roll screens, beam projector screens, It can be applied to both materials and products that can insulate and insulate conductive materials such as glass, ceramics, light bulbs, and desk tops in the form of the above-described heating frames independent of each other, and the plurality of heating frames can be arranged vertically or horizontally or mutually. It may be applied in a superimposed manner, the shape and shape may be different from each other.

In addition, while the above has been illustrated and described with respect to a preferred embodiment of the present invention, the present invention is not limited to the specific embodiment described above, the invention belongs without departing from the gist of the invention claimed in the claims. Various modifications may be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the scope of the present invention.

100: planar heating element 110, 120, 130, 140: heating frame
150: conductive ink-reinforced carbon fiber 200: thermal reaction display unit
210: display auxiliary portion 230: planar heating portion
300: control unit 310: power input unit
320: constant voltage unit 330: power switching unit
340: microcomputer 350: sensor unit
360: display unit 360: power output unit
371, 372, 373: relay 511: solar heat collecting plate
513: LED bulb 514: light reflection cone

Claims (5)

A thermal reaction display unit in which a color change-coloring pigment is applied to one or both surfaces to change color according to a variable temperature;
A planar heat generating unit generating heat to vary a temperature of the thermal reaction display unit; And
And a controller for controlling heat generation of the planar heat generating portion in synchronization with a signal input from the outside.
In the heat generating display in which the heat generation of the planar heat generating unit is changed in response to the signal input to the control unit, the color of one or both sides of the thermal reaction display unit is changed,
The planar heating part is a heat generating using a planar heating element, characterized in that the plurality of heating frames coated with an electrically conductive material are arranged independently of each other, the plurality of heating frame is composed of a planar heating element that generates a variable temperature sequentially at a time interval display.
The method of claim 1, wherein the thermal reaction display unit
It is configured to be in contact with the display assistant for retroreflecting the incident light,
Heat dissipation display using a planar heating element, characterized in that further comprising a thermal discoloration Zion pigment is applied to one surface of the display auxiliary portion in contact with the thermal reaction display. The method of claim 1, wherein the control unit
A plurality of relays connected to the plurality of heating frames, respectively, for sequentially supplying voltage at time intervals independently of each other; And
It is configured to include a light sensor, motion sensor, temperature sensor,
The control unit is a heating display using a planar heating element, characterized in that for controlling the variable heating of the plurality of heating frames in synchronization with the type of the detection signal input from the sensor. The method of claim 3, wherein the control unit
A solar collector, a solar charger, a plurality of LED bulbs; And
It is further configured to further include a plurality of relays connected to the plurality of LED bulbs, respectively, and sequentially supply voltage at a time interval independent of each other,
The control unit is a heating display using a planar heating element, characterized in that for controlling the variable light emitting the plurality of LED bulbs in synchronization with the type of the detection signal input from the sensor. The method of claim 4, wherein the control unit
The input voltage applied from the solar charger is first supplied to the plurality of LED bulbs and the plurality of heating frames in synchronization with the type of the detection signal input from the sensor, and the input voltage is compared by comparing the input voltage with the reference voltage. When the reference voltage is less than the reference voltage is applied to the general 220V AC input voltage, the heating display using the planar heating element, characterized in that the control to supply to the plurality of LED bulbs and the plurality of heating frame.

Images