KR20180025042A - Refrigerator - Google Patents

Abstract

The present invention provides a refrigerator including: a main body having a storage chamber; a door coupled to the main body and configured to open and close the storage chamber; a touch screen disposed on one surface of the door and configured to output screen information and change the transparency based on a knock input; and a controller configured to control the touch screen so as to increase the transparency of one area of the screen information based on a first knock input applied to the touch screen and to increase the transparency of the remaining area of the touch screen based on a second knock input.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator having a touch screen on which an image is output.

Generally, a refrigerator discharges cold air generated by a refrigeration cycle including a compressor, a condenser, an expansion valve, an evaporator, etc. to lower the temperature of the inside of the refrigerator and freeze or refrigerate food or the like.

In recent years, the functions of refrigerators have been diversified in their original function of storing foods in refrigeration or freezing. That is, a dispenser is installed on the door of the refrigerator to provide purified water and ice, and a display is installed on the front of the door to show and manage the state of the refrigerator.

Generally, the door of the refrigerator is made opaque and is provided to open and close the storage room of the main body. Such a door may be configured to be openable and closable for the user to access the refrigerator compartment or the freezer compartment. Therefore, it is general that the user can not grasp the type and location of the food stored in the refrigerator before opening the door.

A display area capable of displaying image information may be formed outside the door of the refrigerator which is made opaque. Therefore, a menu and various information for controlling the function of the refrigerator can be displayed through the display area, and various functions of the refrigerator can be controlled according to the input of the user through the display area.

Meanwhile, when the door of the refrigerator is made opaque, the user can not confirm the food stored in the refrigerator without opening the door of the refrigerator. In order to solve such a problem, a refrigerator has been developed in which the door is formed transparently so that the user can check the food in the compartment without opening the door. However, when the door of the refrigerator is transparent, it is possible to confirm the state of stored food without opening the door. However, it is difficult to display information related to the function of the refrigerator due to the absence of the display area.

Accordingly, there is a great deal of research on the possibility of having all the advantages of the display area provided through the door, while maintaining the advantage of using a transparent door.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and other problems, and it is an object of the present invention to provide a refrigerator which can display various image information through a display area formed on the door and identify food stored in the refrigerator without opening the door, And a control method of the refrigerator.

It is another object of the present invention to provide a refrigerator which enables a user to check the state of foods stored in a storage space corresponding to one area of a user's selection in a state displaying various information useful for a user through a display area formed on a door, And a control method of the refrigerator.

According to an aspect of the present invention, there is provided a refrigerator comprising: a main body having a storage chamber; a door coupled to the main body and configured to open and close the storage chamber; And a second knock input to the touch screen, the first knock input being configured to output screen information, to change the transparency based on the knock input, and to increase the transparency of one area of the screen information based on the first knock input. And controlling the touch screen to increase the transparency of the remaining area of the touch screen based on the second knock input.

In one embodiment, the screen information includes text and graphic objects, and the controller may increase the transparency of the graphic object based on the first knock input.

In one embodiment, the text may include at least one of visual information, status information of a storage room, data associated with a user, weather information, and pre-stored memo information, and the graphical object may be displayed in a central area of the touch screen have.

In one embodiment, the controller may control the touch screen to change a position at which the graphic object is output based on a touch input applied to the touch screen.

In one embodiment, the position at which the graphics object with increased transparency is output may be changed on the touch screen according to the passage of time.

In one embodiment, in a state in which the screen information is displayed in an opaque state on the touch screen, the controller switches one area of the touch screen to a transparent state based on a predetermined touch input to which the touch screen is applied .

In one embodiment, one area of the touch screen is determined by the touch position of the predetermined touch input, and the controller can adjust the size of the one area based on the touch range of the predetermined touch input.

In one embodiment, when the entire area of the touch screen is changed to a transparent state by the second knock input, the touch screen may output at least one graphic object related to an object disposed in the storage room.

In one embodiment, a control graphic object for controlling the transparency of the touch screen is output to one area of the touch screen in a state where the entire area of the touch screen is changed to a transparent state by the second knock input .

In one embodiment, the control unit switches the touch screen to an opaque state based on a touch input applied to the control image, and the touch screen may output the graphic object in the opaque state.

Effects of the refrigerator and its control method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, the display area formed on the refrigerator door is controlled to be switched to a transparent state according to a function to be used or a user's selection, so that the food stored in the refrigerator So that various information can be provided to the user through the display area formed on the door.

According to at least one of the embodiments of the present invention, food items stored in a refrigerator can be identified through a part of a user-selected area, so that it is possible to maintain a state in which specific image information is provided through a display area So that the user can check the food stored in the refrigerator.

FIG. 1A is a block diagram for explaining the structure of a refrigerator according to the present invention. FIG.
1B and 1C are illustrations showing a refrigerator according to the present invention.
1D is an exemplary view showing a refrigerator according to another embodiment of the present invention.
FIGS. 2A to 2E are cross-sectional views illustrating a door of a refrigerator according to the present invention.
3 is a flowchart illustrating an operation of changing a transparency of a touch screen formed on a door based on a touch input in a mobile refrigerator according to an embodiment of the present invention.
FIG. 4 is an exemplary view illustrating an example in which transparency of at least a part of a touch screen formed on a door is changed according to the operation procedure of FIG.
FIG. 5 is a diagram illustrating another example in which transparency of a part of a touch screen is changed according to a touch input in a refrigerator according to an embodiment of the present invention.
FIG. 6 is an exemplary view illustrating an example in which a state of a touch screen is changed according to a touch input in a refrigerator according to an embodiment of the present invention.
7 is an exemplary view showing an example of a management menu displayed on a touch screen formed on a door in a refrigerator according to an embodiment of the present invention.
FIG. 8 is an exemplary diagram illustrating an example of performing a shopping function for foods with insufficient remaining capacity among the functions performed through the management menu in the refrigerator according to the embodiment of the present invention.
9 is a flowchart illustrating an operation of the refrigerator according to an embodiment of the present invention when the purified function is performed through the management menu.
10 is a flowchart illustrating an operation of calculating a water intake amount differently according to a user's water intake state while the water purification function is performed in a refrigerator according to an embodiment of the present invention.
11 is a view illustrating an example in which information related to a user's water intake amount is displayed through a touch screen formed on a door when the water purification function is performed in a refrigerator according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The description of the following drawings is based on a clockwise order starting from the upper left figure, and the upper left figure is a second drawing, the upper right drawing is a second drawing, Third drawing ", and the lower left figure is referred to as" fourth drawing ".

First, referring to FIG. 1A, FIG. 1A is a block diagram illustrating a refrigerator 100 related to the present invention.

The refrigerator 100 may include a communication unit 130, a sensing unit 140, a display unit 150, a user input unit 160, and a memory 170. The components shown in FIG. 1 are not essential for implementing the refrigerator 100, so that the refrigerator 100 described in this specification can have more or less components than the components listed above.

The communication unit 130 may be provided between the refrigerator 100 and a predetermined communication system or between the refrigerator 100 and at least one external device or between the refrigerator 100 and a specific external server Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the communication unit 130 may include one or more modules that connect the refrigerator 100 to one or more networks.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the refrigerator 100, surrounding environment information surrounding the refrigerator 100, and user information. For example, the sensing unit 140 may include a camera 141, a weight sensor 142 capable of sensing the weight of each of at least one storage space in the refrigerator 100, and a user adjacent to the refrigerator 100 A pressure sensor 144 capable of measuring a pressure applied through the touch input when the user's touch input is sensed through a touch sensor, an infrared sensor (IR sensor) ), A finger scan sensor, an ultrasonic sensor, a microphone, an environmental sensor (for example, a hygrometer, a thermometer, an odor sensor, etc.) And may include at least one. Meanwhile, the refrigerator 100 disclosed in the present specification can combine and use information sensed by at least two of the sensors.

Meanwhile, the display unit 150 may be implemented as a transparent liquid crystal display panel. The display unit 150 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input 160 that provides an input interface between the refrigerator 100 and a user and may provide an output interface between the refrigerator 100 and a user.

The user input unit 160 may include a microphone for inputting an audio signal or an audio input unit and at least one key for inputting information from a user. These keys are composed of a virtual key, a soft key, or a visual key displayed on the touch screen through software processing, or a touch key (touch key) disposed on a portion other than the touch screen key). Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.

In addition, the memory 170 stores data supporting various functions of the refrigerator 100. The memory 170 may store a plurality of application programs (application programs or applications) driven by the refrigerator 100, data for operation of the refrigerator 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least some of these applications may reside on the refrigerator 100 from the time of dispatch for basic functions of the refrigerator 100 (e.g., a temperature management function for each storage area).

On the other hand, the controller 180 controls the overall operation of the refrigerator 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. Further, the controller 180 may operate at least two of the components included in the refrigerator 100 in combination with each other for driving the application program.

In addition, the controller 180 may divide the touch input into different inputs based on the time at which the touch input is held or the pressure measured through the touch input, even though the touch input is applied to the same point on the touch screen . That is, when the first touch input (first touch input) is applied to one point on the touch screen, the controller 180 performs a function corresponding to the applied touch input, and the touch input is maintained for a predetermined time or longer, When the pressure applied through the touch input is changed, the touch input can be sensed as the second touch input. And perform other functions corresponding to the second touch input.

On the other hand, when a plurality of touch inputs continuously applied in a predetermined time are applied, the controller 180 determines that the plurality of touch inputs are predetermined touch inputs for controlling one or more functions of the refrigerator 100 . That is, when a plurality of touch inputs continuously applied within a predetermined time are sensed, the controller 180 can detect a predefined pattern matching a pattern formed by points on the touch screen where the touch input is sensed. If there is a pattern matching the pattern formed from the plurality of touch inputs, the controller 180 controls the refrigerator 100 such that at least one function is executed according to a specific pattern corresponding to the plurality of touch inputs, Can be controlled.

Meanwhile, the refrigerator 100 according to the embodiment of the present invention may include a water purification system and a water purification unit 190 to provide a water purification function for discharging purified water in the water purification system. The water purification unit 190 may include a dispenser and a discharge unit (not shown) capable of taking out the purified water according to a user's selection. The water purification unit 190 can discharge water heated to a predetermined temperature or higher through the discharge unit, or can discharge water in a liquid state at a predetermined temperature or lower. Or a part of the purified water may be cooled according to a user's selection to generate ice, and the generated ice may be discharged through the discharge unit.

Meanwhile, the integer part 190 may be managed according to the control of the controller 180. For example, when water or ice is discharged through the water purification unit 190, the control unit 180 may measure the amount of water discharged for a predetermined period of time (for example, one day) based on the amount of discharged water and ice have. And various information related to the amount of discharged water can be displayed through the touch screen. In this case, when the integer function is selected, the controller 180 recognizes the user and may display the amount of water discharged during the predetermined period of time in relation to the recognized user as the amount of water consumed by the recognized user. In this case, the water intake amount information may be displayed on the basis of the recommended daily water intake amount for each user, based on personal information applied from each user.

 At least some of the components may operate in cooperation with each other to implement the method of operation, control, or control of the refrigerator 100 according to the various embodiments described below. Also, the operation, control, or control method of the refrigerator 100 may be implemented on the refrigerator 100 by driving at least one application program stored in the memory 170.

1B and 1C are diagrams for explaining a refrigerator 100 related to the present invention.

The refrigerator 100 according to the embodiment of the present invention includes a main body 200 including a storage room and at least one door formed on at least one side of the main body 200 for selectively opening and closing the storage room . A water purifier 290 for discharging purified water or ice according to the purified function of the water purifier 190 may be formed on any one of the doors 210 of the refrigerator 100.

Here, the door 210 of any one of the doors can adjust the transparency from the completely opaque state to the transparent state through the transparency adjustment. In addition, the door 210 may be formed with a display area 201 including a transparent liquid crystal display so that various image information such as characters, images, and moving pictures can be displayed. As described above, the transparent display region 201 may have a mutual layer structure with the touch sensor or may be integrally formed to form a touch screen. In the following description, it is assumed that the transparent display area 201 forms a touch screen.

The touch screen 201 may be formed on a front surface of the door 210 or on a front surface of the door 210. A plurality of touch screens 201 may be formed on the door 210 or a plurality of touch screens 201 formed on a front surface of the door 210 may be divided into a plurality of May form different touch screens.

Meanwhile, when a plurality of touch screens are formed, the plurality of touch screens may correspond to a front area of each of the storage areas partitioned by shelves in the storage compartment. That is, the vertical width of any one of the plurality of touch screens corresponds to the height between the shelves vertically adjacent to each other in the one storage area, and the width of one of the touch screens corresponds to the height of the door 210, The width of the door 210 can be reduced. However, it is needless to say that the touch screen may be formed to be smaller than the front surface area of the specific storage space or correspond to the combined area of the front surface areas of the plurality of storage areas.

<Knock on part description: Transparency <-> Transparency state change>

Meanwhile, when the predetermined touch input is applied to the touch screen 201, the controller 180 can sense the touch input as a touch input for changing the state of the touch screen 201. Here, the predetermined touch input may be a touch input applied to a specific area of the touch screen 201, a touch input that maintains a touch state for a predetermined period of time, or a touch input whose applied pressure is equal to or higher than a certain level. Or a plurality of touch inputs applied in a predetermined pattern.

On the other hand, when the predetermined touch input is applied to the touch screen 201, the controller 180 can change the state of the touch screen 201. That is, as shown in FIG. 1B, if the touch screen 201 is in a state where the food stored in the corresponding storage space is identifiably transparent, the controller 180 controls the touch screen 201, It is possible to switch the state of the stored food to a state in which the identification of the stored food is impossible and is displayed in an opaque state. On the contrary, if the touch screen 201 is displayed in an opaque state, the controller 180 may switch the touch screen 201 to a transparent state based on the predetermined touch input.

<Knock on: Various functions performed according to the knock pattern>

Meanwhile, the predetermined touch input may be a touch input in which a plurality of touch inputs continuously input as described above form a specific pattern. In this case, the controller 180 may perform at least one function of the refrigerator 100 corresponding to the plurality of touch inputs. For example, the controller 180 may change the touch screen transparency of a specific door to which the plurality of touch inputs are applied, according to a pattern formed from a plurality of touch inputs. Alternatively, the control unit 180 may display specific information corresponding to a pattern formed from the plurality of touch inputs, among various information related to the food stored in the refrigerator 100, on the touch screen. For example, the various information related to the food may include information on the remaining amount of the food stored in the specific storage space, information on the effective period of the food, and the like. The remaining amount measurement information and the valid period information may be information corresponding to different patterns.

Meanwhile, the predetermined touch input may be a touch input for displaying a management menu for controlling various functions of the refrigerator 100. In this case, the control unit 180 may display a management menu on the touch screen to control various functions provided by the refrigerator 100 around the point where the touch input is applied. And may cause a specific function to be performed based on another input of the user to the management menu.

1B to 1C, the touch screen is formed on any one of the doors formed in the refrigerator 100. Alternatively, the touch screen may be formed on each door formed in the refrigerator 100 Of course. FIG. 1D shows an example of a refrigerator 100 according to another embodiment of the present invention.

1D, when a refrigerator 100 including a plurality of doors 210, 220, 230, and 240 formed on at least one side of the main body 200 is formed, the doors 210, 220, and 230 The touch screens 201, 221, 231, and 241 may be formed independently of the touch screens 240 and 240. The control unit 180 may control the touch screens 201, 221, 231, and 241 independently of each other. That is, the controller 180 controls the touch screens 221, 231, and 241 formed on the other doors 220, 230, and 240 to be transparent or opaque like the door 210 shown in FIG. 1B Respectively. The storage spaces corresponding to the respective doors 201, 221, 231, and 241 are connected to the respective doors 201, 221, 231, and 241 so that various functions related to the foods in the storage spaces corresponding to the respective doors 201, Can be controlled. In this case, the control unit 180 can display the management menu on the touch screen formed on each door, and the function that can be performed in each storage space can be selected from the user through the displayed management menu.

 2A to 2E are cross-sectional views illustrating a door 210 in which a touch screen is formed in the refrigerator 100 according to the present invention.

Referring to FIG. 2A, when a specific voltage V3 is applied to the first electrode 211b and the second electrode 212b, all three lights 210a, 210b, and 210c may be reflected. Accordingly, when the second electrode substrate 212a is flat, the touch screen 201 of the door 210 can be seen as a mirror. In particular, when the electric field dependent layer 217 is made of a photonic crystal, the touch screen of the door 210 can have a higher reflectance.

On the other hand, the electric field dependent layer 217 can be formed by charging each cell with an electric field dependent substance.

The electric field dependent material to be filled in the electric field dependent layer 217 is a substance that changes its characteristic by an electric field formed between the first electrode 211b and the second electrode 212b and includes a liquid crystal material, , Photonic crystal material, electrophoresis material, and electrowetting material.

Here, the electrophoretic material refers to a material exhibiting electrophoresis, the electro wetting material refers to a material exhibiting electro wetting phenomenon, and the photochromic material may mean a material exhibiting a photochromic phenomenon. A brief description of some electric field dependent materials is that a photonic band gap is formed due to the regular arrangement of fine structures repeated spatially, and only a specific wavelength is reflected from outside incident light. The color expressed by the structure is called the structure color.

The formation of the photonic bandgap depends on the size, spacing, refractive index difference, etc. of the particles constituting the photonic crystal. Therefore, if the intensity or direction of the electric field is controlled to change the characteristics of the photonic crystal, the color developed can be controlled.

Electrophoresis is a phenomenon in which charged particles move by an electric field formed between two electrodes. When charged particles having high resistance and color are dispersed in a fluid having low viscosity and voltage is applied to two electrodes, charged particles can move and display color.

The electrowetting type display adopts the principle that the conductive fluid (water) and the nonconductive fluid (oil) are not mixed. When the external tension is controlled to control the surface tension of the conductive fluid, the contact angle of the conductive fluid and the interface The wavelength of the reflected light changes.

In the description of the refrigerator 100 according to the embodiment of the present invention, any of the electric field dependency materials can be used. However, for convenience of explanation, the following description will be made by way of example of using a cholesteric liquid crystal material among liquid crystal materials capable of realizing excellent light transmittance.

On the other hand, Fig. 2B shows a liquid crystal arrangement in homeotropic state. Liquid crystals in homeotropic state are untwisted, meaning that the liquid crystal molecules are aligned in the direction of the electric field. The arrangement of the liquid crystal molecules in the homeotropic state is an arrangement when a high electric field is formed between the first electrode 211b and the second electrode 212b, and has a property of transmitting light. Accordingly, as shown in FIG. 2B, incident light is transmitted as it is, and the touch screen 201 of the door 210 can be seen transparently. Therefore, in this case, the user can identify the foods stored in the door via the door 210.

2C shows a liquid crystal array in a planar state. The planar state means a state in which the helical axis of the cholesteric liquid crystal is arranged substantially perpendicular to the substrate, for example, the first electrode substrate 211a. The liquid crystal layer 217 in the planar state is formed when the high electric field applied to the liquid crystal in the homeotropic state is abruptly lowered. When the cholesteric liquid crystal is in the planar state, light of a specific wavelength Can be reflected.

At this time, the specific wavelength is determined according to the helical pitch in the helical structure of the cholesteric liquid crystal. That is, since the wavelength of the reflected light can be determined by adjusting the pitch of the helical line, the color of the reflected light can be adjusted by controlling the pitch of the helical pitch of the cholesteric liquid crystal. Therefore, a desired color can be displayed without having a separate color filter.

2D shows a liquid crystal array in a focal conic state. The focal conic state may mean that the spiral axis of the cholesteric liquid crystal is arranged substantially parallel to the first electrode substrate 211a. The liquid crystal structure in the focal conic state is an arrangement formed when the high electric field applied to the liquid crystal of the homeotropic state is slowly lowered and has the property of scattering or diffusing light. Accordingly, when the liquid crystal is in the focal conic state, the touch screen 201 may become opaque.

For example, when an electric field is applied to the cholesteric liquid crystals in the planar state, the spiral axis perpendicular to the first electrode substrate 211a may be changed to be parallel to the first electrode substrate 211a and may be in a focal conic state . Here, the electric field applied to the cholesteric liquid crystal may be 10-20V.

When a larger electric field is applied to a cholesteric liquid crystal in a focal conic state, the helical structure may be untwisted and become a homeotropic state in which liquid crystal molecules are arranged in the electric field direction. Here, the electric field applied to the cholesteric liquid crystal may be 30-50V. When the electric field is gradually removed from the homeotropic state, it can return to the focal conic state, and if the electric field is abruptly removed, it can become the planar state.

On the other hand, in order to convert the cholesteric liquid crystal in the focal conic state into the planar state, a larger electric field is applied to the cholesteric liquid crystal to enter the homeotropic state as described above, and then the electric field is rapidly removed. .

Accordingly, when the user applies a preset touch input, the controller 180 may apply a high voltage to the first electrode 211b and the second electrode 212b to make the cholesteric liquid crystal homeotropic. Then, the touch screen 201 can transmit light and be displayed transparently.

In this state, the controller 180 can receive another touch input from the user. Here, another touch input may be a touch input having a different holding time or a touch input having a different applied pressure. When the other touch input is applied, the control unit 180 may gradually remove or rapidly remove the high electric field formed in the cell, thereby making the focal conic state or the planar state. Then, the liquid crystal can be switched from a transparent state to an opaque state or a state in which image information such as a graphic object can be displayed.

2E illustrates an example in which the door 210 according to the embodiment of the present invention has a stacked structure of PDLC (Polymer Dispersed Liquid Crustal) and a transparent display panel (T-LCD).

2E, a door 210 according to an embodiment of the present invention includes a PDLC layer 260 stacked between first and second toughened glass layers 250a and 250b, On structure in which a T-LCD layer 270 and a touch film 280 are stacked between the third glass layer 250a and the third glass layer 250c.

Hereinafter, embodiments related to a control method that can be implemented in the refrigerator 100 configured as above will be described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

In the following description, the touch screen 201 is formed on the door 210 for convenience of explanation. However, the present invention is not limited thereto. That is, the touch screen may be formed on any one of the other doors 220, 230 and 240 of the refrigerator 100, or the touch screen may be formed on each of the other doors 220, 230 and 240 Of course. In this case, it is needless to say that the touch screen formed on any one of the other doors or each of the other doors can be controlled similarly to the following description.

3 is a flowchart illustrating an operation of changing a transparency of a touch screen 201 formed on a door 210 based on a touch input in a refrigerator 100 according to an embodiment of the present invention.

3, the controller 180 of the refrigerator 100 according to the embodiment of the present invention may display various screen information on the touch screen 201 when a preset condition is satisfied (S300) . For example, the predetermined condition may be satisfied when the user who is within a predetermined distance from the refrigerator 100 is sensed or when the touch input of the user is sensed at one point of the touch screen 201. The control unit 180 may display the screen information corresponding to the user when the recognized user is a predetermined user as a result of recognizing the person around the refrigerator 100 through the sensing unit 140. [

Meanwhile, the screen information displayed through the touch screen 201 may include information to be sensed through the sensing unit 140. For example, the control unit 180 may display the screen information including the result of sensing the temperature or humidity around the refrigerator 100 on the touch screen 201. Alternatively, when the preset user is recognized according to the result detected through the sensing unit 140, the control unit 180 may display various information related to the recognized user.

Meanwhile, the touch screen 201 may keep the display panel included in the touch screen 201 in an inactive state so that the screen information is not displayed until the predetermined condition is satisfied. In the meantime, even if the display panel is in the inactive state, the controller 180 controls the touch screen 201 in a doze mode in which a minimum current or power is consumed to detect a touch input of a user applied on the touch screen 201 The touch screen 201 can be driven. When the touch input of the user is detected from the touch screen 201, the display panel may be activated so that the screen information can be displayed on the touch screen 201.

Meanwhile, in a state in which the screen information is displayed on the touch screen 201, the controller 180 can sense the touch input of the user. If the user's touch input is applied, the transparency of the touch screen 201 can be changed in response to the touch input. Accordingly, the user can confirm the foods stored in the refrigerator 100 through the transparent touch screen 201 without opening the door 210.

Meanwhile, the screen information may be information collected from at least one external server through the communication unit 130. The control unit 180 may display weather information of the current time collected from the external server or may display the main news information broadcasted through the communication network. Or information on a subject preset by the user, such as a stock change amount of a specific stock, may be collected through a predetermined external server, and displayed as screen information.

In the state where the screen information is displayed as described above, the controller 180 can sense the touch input (first touch input) of the user applied to the touch screen 201. The transparency of the touch screen 201 may be changed based on the first touch input (S302).

The control unit 180 may change the entire area of the touch screen 201 to be transparent based on the first touch input.

Alternatively, the controller 180 may change the transparency of one area on the touch screen 201 based on a predetermined area on the touch screen 201 or a point where the first touch input is applied . Meanwhile, in step S302, when there is a drag input following the first touch input, the controller 180 may change the position of one area on the touch screen 201 whose transparency is changed according to the drag input.

Meanwhile, the control unit 180 may sense another input (second touch input) of the user applied on the touch screen 201 in a state where the transparency of one area on the touch screen 201 is changed (S304). The second touch input may be a different input from the first touch input. For example, the second touch input may be an input that forms a touch pattern different from the first touch input. Alternatively, the second touch input may be an input having different intensities of the applied pressure or a time at which the touch is maintained. When the second touch input different from the first touch input is applied, the controller 180 can detect that the second touch input is applied.

On the other hand, if the second touch input is detected, the controller 180 may change transparency of at least a part of the opaque area of the touch screen 201 based on the second touch input (S306). For example, based on the second touch input, the controller 180 determines whether the first touch input in step S302 is an area in which transparency has not been changed (can be named as a remaining area), that is, an opaque area If present, the transparency for at least some of these opaque regions can be changed. Alternatively, the control unit 180 may change the transparency of at least a part of the remaining area according to the time of the second touch input or the intensity of the pressure sensed from the second touch input. In this case, the greater the pressure applied to the second touch input is, or the greater the pressure sensed from the second touch input, the greater the transparency of a larger area.

It is a matter of course that the transparency of at least a part of the remaining area can be changed based on the area to which the second touch input is applied. For example, if it is determined that the currently input touch input is the second touch input based on the holding time of the touch input or the touch pressure, the controller 180 controls the touch input corresponding to the drag input applied subsequent to the second touch input The transparency of another area on the touch screen 201 may be changed. In this case, the touch screen 201 can be switched to a transparent state only in a region corresponding to the trajectory of the drag input applied subsequent to the second touch input. Accordingly, when the user touches the touch screen 201 corresponding to the drag input trajectory Through one area, it may be possible to identify the food stored in the compartment.

Meanwhile, the second touch input may be a touch input having a specific pattern. In this case, the controller 180 may change the transparency of one predetermined area on the touch screen 201 corresponding to the specific pattern. For example, the second touch input may be a touch input that is applied at least a plurality of times (for example, twice) continuously.

Meanwhile, the touch screen 201 may be divided into a plurality of areas corresponding to a plurality of storage spaces included in a corresponding storage room. In response to the second touch input, the controller 180 may change the transparency of the specific region corresponding to the second touch input among the regions on the touch screen 201 divided into the plurality of regions.

The first touch input on the touch screen 201 provided on the door 210 of the refrigerator 100 and the second touch input differentiated from the first touch input are applied to the touch screen 201 of the refrigerator 100, Will be described in more detail with reference to FIGS. 4 to 6. FIG.

FIG. 4 illustrates an example in which the transparency of at least a part of the touch screen 201 formed on the door 210 is changed according to the operation procedure of FIG.

First, the first diagram of FIG. 4 shows an example in which the condition that image information is displayed on the touch screen 201 is satisfied. 4, when the user touches the touch screen 201 formed on the door 210 or when a user adjacent to the door 210 is detected, the predetermined condition is satisfied The control unit 180 can display the preset screen information on the touch screen 201.

Such screen information may include at least one of current date and time information, information related to the state of the storage room where food is stored, data related to the user, weather information, and information preset from the user (for example, memo information, etc.) . The second diagram of FIG. 4 shows an example of the screen information displayed on the touch screen 201 as described above.

The controller 180 may display the current date information, the weather information, and the screen information including predetermined specific information through the touch screen 201. Such information may be displayed in different areas of the screen information, and the second diagram of FIG. 4 shows an example of the screen information 400 including various information on the touch screen 201 as described above.

For example, the screen information 400 displayed on the touch screen may include an area 410 in which text characters related to the current date and weather are displayed. In this case, the weather information may include information relating to the present temperature and humidity (Humidity, 'HUM.'), And current weather conditions. That is, if the current weather is rainy, the control unit 180 stores weather information including rainfall (RAIN) information as information related to the current weather condition, i.e., rainy weather, It can be displayed in one area.

Meanwhile, the screen information 400 may include an area 420 in which at least one graphic object corresponding to current weather information is displayed. Accordingly, if the current weather condition is a rainy condition as described above, the controller 180 displays at least one graphic object having various sizes, which simulate a raindrop shape, in one area of the screen information 400 can do. In this case, the number of graphic objects may be determined according to the present precipitation amount. That is, the controller 180 can display more raindrop graphic objects in one area 420 on the screen information 400 when the precipitation is larger than when the rainfall is small.

Meanwhile, the screen information 400 may include an area 430 in which information related to a predetermined theme is displayed by a user. For example, the control unit 180 may display information related to the predetermined topic through image information such as text, image, or moving image. Accordingly, when the news information is selected from the user, the controller 180 can display the news information broadcasted through the news broadcast channel through the screen information 400. FIG.

On the other hand, when the stock price information of a specific stock is selected from the user, the controller 180 can receive information related to the stock price information of the specific stock through the communication unit 130, Area 430. In this case, In this case, the control unit 180 may display not only the stock price information but also information on the stock price change amount (e.g., the change amount of the stock price to the previous day) for a predetermined period.

Meanwhile, as shown in the second diagram of FIG. 4, in a state in which the screen information is displayed, the controller 180 can sense the first touch input from the user. When the first touch input is sensed, the transparency of one area on the touch screen 201 can be changed. That is, when the first touch input is sensed, the controller 180 may change the transparency of one region 450 on the touch screen 201 to be transparent as shown in the third drawing of FIG. 4 . Accordingly, the user can confirm the food stored in the refrigerator 100 without opening the door 210 through the area 450 where the transparency is changed. 4, only a part of the area of the touch screen 201 can be changed to a transparent state. Therefore, while the user is in a state of being provided with the screen information 400, (100).

Meanwhile, in this state, the controller 180 can detect whether another touch input is applied from the user for a preset time. If another touch input is not applied for the preset time, the one region 450 of the touch screen 201, which is currently turned to the transparent state, can be switched back to the opaque state. Accordingly, the control unit 180 may display the screen information 400, such as the state shown in the second drawing of FIG. 4, through the touch screen 201. In this case, when a user is not sensed for a predetermined period of time, a separate input of the user is not sensed, or a control signal for deactivation of the touch screen 201 is input from the user, Can be turned off. In this case, the screen information may not be displayed on the touch screen 201 any more.

On the other hand, in the state shown in the second drawing of FIG. 4, when another touch input is detected, the controller 180 can detect whether the sensed touch input is a second touch input that is distinguished from the first touch input have. If the second touch input is applied, the controller 180 can change the transparency of the remaining area of the touch screen 201 whose transparency is not changed based on the second touch input.

For example, when the touch input that is detected to be stronger than the first touch input is applied, or when the touch input state is maintained for a predetermined time or longer in a state where the first touch input is applied, It can be detected by the second touch input. 4, the control unit 180 may display the area 450 of which the transparency is changed as shown in the fourth diagram of FIG. 4, according to at least one of the intensity of the pressure sensed from the second touch input and the time of the second touch input. ) Can be further expanded. Thus, as shown in the fourth diagram of FIG. 4, the area on the wider touchscreen 201 is turned to a transparent state so that the user can view more food stored in the refrigerator 100 through the touchscreen 201 have.

On the other hand, in the third and fourth figures in FIG. 4, only a part of the touch screen 201 on which the screen information 400 is displayed is changed to a transparent state. However, the entire area on the touch screen 201 is in a transparent state Of course. For example, when the second touch input is applied with a stronger pressure than the example shown in the fourth drawing of FIG. 4 or the touch state is maintained for a longer time, Can be switched to a transparent state.

In the above description, the size of the region to be transparently changed on the touch screen 201 is changed based on the second touch input that is distinguished from the first touch input in a state in which the touch screen 201 is opaque However, if the touch screen 201 is displayed in a transparent state, the opposite process may be performed. That is, the control unit 180 can switch only one area of the transparent touch screen 201 opaque based on the first touch input, and the opaque The size of the area may be changed. Here, the second touch input may correspond to a first knock input including a preset external force. Here, the touch input applied to the touch screen 201 is sensed as a knock input by the pressure of a predetermined reference or more sensed by the touch screen 201 or auditory data sensed by a separate sensing microphone.

When the second knock input is applied after the first knock input is applied, the transparency of the entire area of the touch screen increases. Accordingly, the user can improve the transparency of the entire area of the touch screen through the first and second knock inputs. That is, the touch screen 201 adjusts the transparency of one area of the touch screen when the first knock input is sensed, and the transparency of the entire area when the second knock input is sensed.

In the above description, the size of the transparent or opaque region is enlarged according to the second touch input. However, the size of the region that is displayed as transparent or opaque may be changed based on the second touch input Of course. For example, when the area size of the touch screen 201 whose initial state is switched to another state (transparent state in the opaque state or opaque state in the transparent state) based on the first touch input is equal to or greater than a predetermined level, 180 may reduce the size of the area on the touch screen 201 whose state is changed according to the first touch input based on the second touch input differentiated from the first touch input.

Meanwhile, if the touch input applied in a state in which the first touch input is applied is not distinguished by the second touch input, the controller 180 controls the touch screen 201 according to the corresponding touch input .

5 illustrates an example in which the transparency of a portion of the touch screen 201 is changed when a touch input that is not distinguished by the second touch input is applied in the refrigerator 100 according to the embodiment of the present invention .

First, referring to the first drawing of FIG. 5, the first drawing of FIG. 5 shows an example in which the screen information as described in the second drawing of FIG. 4 is displayed according to whether or not predetermined conditions are satisfied . In this state, the controller 180 can sense the first touch input applied to the touch screen 201.

On the other hand, when the first touch input is applied, the controller 180 controls the one area 504 on the touch screen 201 to be in a transparent state . &Lt; / RTI &gt; The second diagram of FIG. 5 shows this example.

Referring to FIG. 5, the second diagram of FIG. 5 illustrates a touch screen in which one of the at least one graphic objects corresponding to the current weather is displayed (the first graphic object 500) The first touch input 502 of the user is applied to one area 504 on the touch panel 501. Then, the controller 180 may convert a region 504 on the touch screen 201, in which the first graphic object 500 is displayed, to a transparent state according to the first touch input. Then, the food stored in the refrigerator 100 can be seen through the transparent region.

On the other hand, the controller 180 may detect another input of a user applied within a predetermined time following the first touch input 502. In this case, the controller 180 may detect whether the other input is the second touch input. If the other input is the second touch input, as described in the third and fourth drawings of FIG. 4, the transparency of at least a part of the remaining area of the touch screen 201 that has not been changed to the transparent state is changed .

On the other hand, if the other input of the user is not the second touch input, the controller 180 may change the transparency of another area on the touch screen 201 according to the other input, .

For example, as shown in the third drawing of FIG. 5, the controller 180 may display an area 514 in which any one of the graphic objects other than the graphic object whose transparency has been changed (the second graphic object 510) It is possible to detect another touch input applied thereto. Then, the control unit 180 can determine whether or not the touch input applied to the second graphic object 510 is the second touch input. If it is determined that the second graphic object 510 is not classified as the second touch input, it can be determined that the area 514 on the touch screen 201 on which the second graphic object 510 is displayed is further selected by the user.

Accordingly, the controller 180 may change the transparency of one area 514 on the touch screen 201 on which the second graphic object 510 is displayed. Accordingly, as shown in the third diagram of FIG. 5, a plurality of different areas 504 and 514 on the touch screen 201 can be switched to a transparent state, and a plurality of areas 504, and 514 to identify foods stored at different locations, respectively.

In the above description, the position of the region where the transparency is changed on the touch screen 201 is changed according to another user's touch input or drag input. However, the position of the region where the transparency is changed may be changed according to the time It is of course also possible to change automatically.

Meanwhile, another input of the user may be an input applied subsequent to the first touch input. That is, when the drag input is applied following the first touch input, the controller 180 can sense the drag input as another input of the user. In this case, as shown in the fourth diagram of FIG. 5, the controller 180 may change the position of the currently transparent area according to the drag input.

Referring to FIG. 5, the fourth drawing of FIG. 5 illustrates an example in which a drag input 510 is applied to the first touch input 502. FIG. In this case, the controller 180 may change the area on the touch screen 201 that has been changed to the transparent state according to the drag input 510. [

5, in a state where the area 504 in which the first graphic object 500 is displayed is switched to a transparent state by the first touch input 502, the drag input The control unit 180 may change the position of the first graphic object 500 according to the drag input 510. In this case, The other area 516 on the touch screen 201 corresponding to the moved first graphic object 500 may be changed to a transparent state according to the movement of the first graphic object 500.

Meanwhile, the touch screen 201 can move graphic objects included in the screen information 400 according to a time, even if a specific touch input is not applied. When the graphic object moves, the area recognized in the refrigerator 100 is changed through the transparent graphic object. Accordingly, the user can identify various areas within the refrigerator 100 according to the movement of the graphic object.

Accordingly, the controller 180 can convert the region 500 and the region 516 in the transparent state shown in the second drawing of FIG. 5 into the transparent state. Therefore, the area 516 on the touch screen 201 corresponding to the food stored in the other position in the refrigerator 100 can be switched transparently according to the drag input 510, thereby allowing the user to open the door 210 So that it is possible to identify the food stored in the other position in the refrigerator 100 without performing any other operation.

In the above description, the entire area of the touch screen 201 is changed to a transparent state through a plurality of touch inputs that are separated from each other in a state in which the predetermined screen information is displayed, that is, the touch screen 201 is opaque The state of the entire area can be directly switched to another state based on the input of the predetermined user.

FIG. 6 illustrates an example in which the entire area of the touch screen 201 is directly switched according to a preset touch input in the refrigerator 100 according to the embodiment of the present invention.

As described above, the input of the user for switching the state of the touch screen 201 may be a touch input for forming a predetermined pattern, or a touch input applied to at least one predetermined graphic object on the touch screen 201 . For example, the at least one graphic object may be displayed in a predetermined area of the touch screen 201. 6A and 6B illustrate an example in which a control image 600 or 610 capable of selecting a state change of the touch screen 201 is displayed in an area adjacent to the vertex of the bottom edge of the touch screen 201 .

6 (a), the first diagram of FIG. 6 (a) shows an example in which the entire area of the touch screen 201 is in an opaque state. In this case, the control unit 180 may display predetermined screen information as shown in the first drawing of FIG. 6 (a). Graphic objects 600 and 610 for switching the state of the touch screen 201 may be displayed in the areas of both ends of the bottom edge of the touch screen 201.

First, the first object 600 may be for receiving a user selection for switching the entire touch screen 201 to a transparent state. 6 (a), when the user's input is detected in the area on the touch screen 201 on which the first object 600 is displayed, The entire area of the touch screen 201 can be turned into a transparent state, as shown in the second drawing of FIG. Then, the entire touch screen 201 may be transparent, and the user can confirm the food stored at each position in the refrigerator 100 through the entire area of the touch screen 201.

On the other hand, the second object 610 may be for receiving a user selection for switching the entire touch screen 201 to an opaque state. Therefore, as shown in the first drawing of FIG. 6 (b), in a state in which the entire area of the touch screen 201 is transparently changed, the area of the touch screen 201 on which the second object 610 is displayed The controller 180 can switch the entire area of the touch screen 201 to an opaque state. Then, the entire area of the touch screen 201 may become opaque so that foods stored in the refrigerator 100 are not visible, and predetermined image information may be displayed as shown in the second drawing of FIG. 6 (b).

In the above description, the control images 600 and 610 for switching the touch screen 201 to the transparent state or the opaque state have been displayed on the touch screen, Only the control image of the touch screen 201 may be displayed on the touch screen 201.

For example, the control unit 180 may display only the first object 600 on the touch screen 201 in the first drawing of FIG. 6 (a). In this state, when the user selects the first object 600, the controller 180 may convert the touch screen 201 to a transparent state as shown in the second drawing of FIG. 6A.

In this state, the controller 180 can detect whether or not a user's input is applied to the first object 600. [ When the first object 600 is selected again, the controller 180 may switch the state of the touch screen 201 back to an opaque state. In this case, the controller 180 may display the predetermined screen information on the touch screen 201 or display the screen information according to whether the predetermined condition is satisfied.

If only one control image is displayed, the control unit 180 may display different control images according to the current state of the touch screen 201. [ For example, when the touch screen 201 is in a transparent state, the control unit 180 displays a control image having the same shape as the first object 600 as a control image for selecting a state change of the touch screen 201 can do. On the other hand, when the touch screen 201 is in an opaque state, the control unit 180 displays a control image having the same shape as the second object 610 as a control image for selecting a state change of the touch screen 201 .

Meanwhile, according to the above description, the present invention can display a management menu for controlling various functions of the refrigerator 100 according to a preset touch input. In this case, the control unit 180 can select a specific function from the user through the management menu, and can execute the selected function. FIG. 7 illustrates an example in which the function of the refrigerator 100 is controlled through the management menu in the refrigerator 100 according to the embodiment of the present invention.

Referring to FIG. 7, the first drawing of FIG. 7 shows an example in which the user's touch input is applied to one point on the touch screen 201. If the touch input is a preset touch input for the display of the management menu, the controller 180 may display a plurality of different functions that can be executed in the refrigerator 100, as shown in the second drawing of FIG. 7, The management menu 700 can be displayed in one area on the touch screen 201.

The management menu 700 may be displayed in a predetermined area on the touch screen 201. For example, the control unit 180 may display the management menu 700 in one area of the touch screen 201 previously designated. Alternatively, the control unit 180 may display the management menu 700 on the basis of a point 700 on the touch screen 201 to which the predetermined touch input is applied, as shown in the second drawing of FIG. 7 .

Meanwhile, the management menu 700 may include control images corresponding to a plurality of different functions. For example, the first graphic object 712 included in the management menu 700 may be a graphic object corresponding to a function of displaying various information related to food stored in the refrigerator 100. Here, the information related to the food may be information related to the name of the food or the shelf-life, or information related to the amount of the food or the composition of the food.

Meanwhile, the second graphic object 714 may be a graphic object corresponding to a function of generating tag information including a note created by a user in a storage space storing a specific food or a specific food. And the third graphic object 716 may be a graphic object related to the integer function provided in the refrigerator 100 according to the embodiment of the present invention. That is, when the third graphic object 716 of the management menu 700 is selected, the control unit 180 may perform an integer function, and image information related to the integer function may be displayed on the touch screen 201 . The fourth graphic object 718 may be a graphical object corresponding to a timer function for setting the time limit when there is a time limit that the user desires to arbitrarily set a storage space in which a specific food or a specific food is stored.

In such a state that the management menu 700 is displayed, the control unit 180 can detect the selection of the user for one of the graphic objects. 7, when the user selects the first graphic object 712, the control unit 180 determines whether the user selects the first graphic object 712 in relation to the food stored in the refrigerator 100 based on the user's input, for example, Various information can be displayed.

Meanwhile, as described above, the information related to the food may include information on the amount of food remaining. In the following description, the remaining amount of the food is displayed as information related to the food. Here, the remaining amount of the food can be measured in various ways.

For example, the control unit 180 may sense the weight of each storage space in which different kinds of foods are separated. Then, the weight of each storage space may be the sum of the weights of the kinds of foods stored in the storage space, and may be the remaining amount information of the kinds of food stored in the storage space.

Meanwhile, the controller 180 may measure the remaining amount of each food stored in the refrigerator 100. For example, the control unit 180 may measure the remaining amount of food based on the result of sensing the image of the food in the case of a food stored in a transparent material container such as a glass bottle and capable of measuring the remaining amount through the outside. Alternatively, the control unit 180 can measure the degree to which the food is filled in the container by using the result of reflection of the ultrasonic wave output from the ultrasonic sensor in each area of the container, even if the food is stored in a container that is not transparent. , And the remaining amount of the food stored in the container may be calculated according to the measured result.

If the remaining amount of the food is determined by these various methods, the controller 180 may display information on the determined remaining amount on the touch screen 201. Here, the remaining amount information may be displayed in one area on the touch screen 201 corresponding to the food. For example, information on the type of food remaining amount information stored in each storage space may be displayed in areas corresponding to the respective storage spaces on the touch screen 201, respectively. Or the remaining amount information measured from each food, may be displayed on the touch screen 201 in the area corresponding to each food. The fourth figure in Fig. 7 shows this example.

Referring to FIG. 7, the fourth diagram in FIG. 7 shows an example in which residual amounts measured from each food are displayed in respective areas on the touch screen 201 corresponding to the foods. In this case, as shown in the fourth diagram in Fig. 7, the remaining amount of each food can be displayed as a graphical object 720 having a size corresponding to the measured remaining amount. In addition, the controller 180 may convert the regions of the touch screen 201, in which the graphic objects are displayed, to an opaque state in order to increase the readability of the graphic objects for displaying the remaining amount.

On the other hand, in a state where the remaining amount of each food is displayed, the control unit 180 can detect the user's selection of the specific food. When the user's selection of the specific food is detected, the controller 180 can perform various functions accordingly. For example, the function for the specific food may be a shopping function related to the purchase of the food.

FIG. 8 is an exemplary view showing an example of performing a shopping function for a specific food in the refrigerator 100 according to the embodiment of the present invention.

First, referring to the first drawing of FIG. 8, the first diagram of FIG. 8 shows an example in which remaining amount information of each food item stored in the refrigerator 100 is displayed by the user It is.

On the other hand, as shown in the first diagram of FIG. 8, when the specific remaining amount information is selected, the controller 180 can identify the food 730 corresponding to the selected remaining amount information. For example, the control unit 180 can identify the food based on the tag information stored together with the food or the barcode displayed on the container of the food. Alternatively, the control unit 180 can recognize the image or text information displayed on the container of the food from the image of the food 730 sensed through the camera. And can identify the type or name of the food 730 based on the recognized image or text.

8, when the specific remaining amount information is selected, the control unit 180 displays a shopping function of the food 730 corresponding to the selected remaining amount information in one area on the touch screen 201, And display related graphics objects. 8, a graphical object associated with the shopping function may be formed in an area 810 adjacent to a particular vertex on the touch screen 201. In this case, 8, the user drags the currently selected remaining amount information 800 and drops the selected remaining amount information 800 into the area where the graphic object related to the shopping function is displayed (step &lt; RTI ID = 0.0 &gt; , It can be determined that the purchase of the food 730 corresponding to the currently selected remaining amount information 800 is selected. Accordingly, the control unit 180 can add the food 730 corresponding to the remaining amount information as the food to be purchased, and display the screen information related to the purchase function of the currently set food to be purchased on the touch screen 201 have.

The third diagram of FIG. 8 shows an example in which a shopping list 820 including a list of foods 830 set as food to be purchased is displayed on the touch screen 201. In this state, the controller 180 may perform a function of purchasing the selected food when the user selects at least one food to be purchased. The purchase function may include a function of accessing a specific server or a purchase site where the currently selected food can be purchased, and displaying the screen information related to the purchase of the food. That is, if the food corresponding to the currently selected remaining amount information 800 is wine, the control unit 180 accesses the wine purchase site where the wine can be purchased, as shown in the fourth drawing of FIG. , And display the screen 860 of the connected wine purchasing site in one area on the touch screen 201. [

On the other hand, when the shopping cart list 820 is displayed, the controller 180 may display a graphic object on the touch screen 201 that can be selected to end the purchase function including the shopping cart list 820. [ For example, when the shopping cart list 820 is displayed, the control unit 180 may display a graphic object 850 for selecting the end of the purchasing function instead of the graphic object related to the shopping function. Accordingly, the ending object 850 may be displayed in the region 810 adjacent to the specific vertex as shown in the third drawing of FIG. 8, and may be currently executed based on the user's input on the ending object 850 You can end the purchase function.

8, a connection to a specific purchase site is displayed and a screen according to the connection is displayed on the touch screen 201. However, a purchase function provided by the refrigerator 100 according to the embodiment of the present invention The present invention is not limited thereto. For example, the control unit 180 may display on the touch screen 201 information such as a mart for purchasing the selected food or a place of purchase such as a seller of the food. If there is a user's selection of the information of the purchaser, the user attempts to connect with the purchaser through a communication network or transmits a call signal to the purchaser through a preset external terminal, i.e., the user's mobile terminal Of course.

In the above description, it has been described that the user adds the graphic object corresponding to the specific food item as the food to be purchased, regardless of the remaining amount, and the purchase function is performed according to the user's selection of the added goods. However, Of course, in the case of the deficient food, the purchase function for the food may be executed immediately.

7, the control unit 180 may display information on the remaining amount of food stored in the refrigerator 100 on the touch screen 201. [ In the case of food having a remaining amount of less than a predetermined level, the controller 180 may display the remaining amount information differently from other remaining amount information such as a different color. As a result, the user can easily recognize foods that are currently insufficient.

If the user selects a graphic object corresponding to the food, the controller 180 may immediately execute a function related to the purchase of the food. In this case, screen information related to the purchase function may be displayed in one area of the touch screen 201.

Meanwhile, the control unit 180 of the refrigerator 100 according to the embodiment of the present invention performs various functions related to the food as described above, and may also perform the purified function through the management menu 700. Also, when the touch input for forming a pattern corresponding to a predefined pattern corresponding to the execution of the integer function is detected, the controller 180 may cause the integer function to be executed immediately even when the management menu is not displayed Of course.

FIG. 9 is a flowchart illustrating an operation of the refrigerator 100 according to an embodiment of the present invention.

9, the control unit 180 of the refrigerator 100 according to the embodiment of the present invention may display the screen information related to the purified function on the touch screen 201 when the integer function is executed (S900). In this case, if the state of the touch screen 201 is in a transparent state, the controller 180 may convert the touch screen 201 into a translucent state by adjusting transparency of at least a part of the touch screen 201, The screen information related to the integer functions can be displayed on the touch screen 201 that has been converted into the semi-transparent state.

Meanwhile, the integer function related screen information displayed in the step S900 may include a graphic object for selecting discharge of water or ice, and may include a graphic object for indicating that the currently executed function is an integer function. The screen information may include image information for selecting a user for an integer function.

For example, the image information for selecting the specific user may include at least one graphic object for selecting any one of predetermined users. That is, the controller 180 may display a graphic object corresponding to each of the predetermined users, and may recognize a user who has selected the current integer function according to the selection of one of the graphic objects. And can display information about the recognized user. The information on the recognized user may include information on the name of the currently recognized user and the amount of water consumed by the user during a predetermined period of time. For example, if the preset period is one day, the controller 180 may initialize the water uptake information stored up to the current time for each user based on a specific time (for example, AM 12 o'clock). Accordingly, if the preset period is one day, the information related to the amount of water ingested during the present day, i.e., the present day, may be included.

Meanwhile, the controller 180 of the refrigerator 100 according to an embodiment of the present invention automatically recognizes the user who selected the integer function when the integer function is selected. For example, the control unit 180 can sense an image outside the refrigerator 100 through the camera 141, and can identify a user who has applied the touch input from the sensed image. It is also possible to recognize the user who selected the integer function from the result of recognizing the facial image or the user iris of the identified user.

Alternatively, the control unit 180 may recognize the user using a microphone or a fingerprint recognition sensor. That is, when a voice command for executing the integer function is detected, the controller 180 can recognize the user who selected the integer function from the detected voice feature. Alternatively, the control unit 180 may sense a fingerprint of a user applied for a touch input to the touch screen 201, and may recognize a user who has applied the touch input based on the detected fingerprint. In this case, if the integer function is performed based on the touch input, the controller 180 can recognize that the user who has applied the touch input selects the integer function. If the user is automatically recognized, the controller 180 may display the recognized user immediately without selecting a specific user.

If the screen information including information related to the user who selected the water purification function is displayed in step S900, the controller 180 may detect whether or not the purified water has been discharged through the dispenser (step S902). Here, whether or not the purified water is discharged may include not only liquid water but also solid state water, that is, ice is discharged. Here, the control unit 180 may determine that water corresponding to the weight of the discharged ice is discharged when ice is discharged.

On the other hand, if it is determined in step S902 that the discharge of purified water is detected, the controller 180 may update the water consumption amount information of the currently recognized user based on the discharged water amount (S904). In step S904, the controller 180 may calculate the sum of the amount of water discharged in step S902 and the amount of water stored corresponding to the currently recognized user as the amount of water consumed by the user today.

On the other hand, when the water intake amount information is updated as described above, the control unit 180 can display the updated water intake amount information in one area on the touch screen 201 (S906). Here, the controller 180 may display the updated information on the water intake amount as a ratio of the recommended daily water intake recommended amount to the currently recognized user. For example, the controller 180 may receive information on the body information, such as the body weight, the key, and the body fat ratio, from each user. The recommended amount can be calculated. The ratio of the water intake amount calculated in step S904 to the daily water intake recommended amount corresponding to the currently recognized user can be calculated and the calculation result can be displayed on the touch screen 201. [

On the other hand, when the user has a predetermined water intake target amount, the water intake amount information may be displayed based on the predetermined water intake target amount instead of the daily water intake recommended amount. Therefore, the user can set the water intake target amount to a water intake amount less or more than the recommended daily water intake amount for the diet and the like, and the achievement rate with respect to the set target amount can be confirmed as the above ratio.

Meanwhile, such water consumption information may be transmitted not only to the touch screen 201 but also to at least one external device set by the user. That is, the controller 180 may transmit information related to the water intake amount to the user's mobile terminal at the request of the user, and the transmitted water intake amount information may be displayed through the display unit of the mobile terminal.

Meanwhile, the control unit 180 of the refrigerator 100 according to the embodiment of the present invention may calculate and update the amount of water consumed by the user depending on whether or not the user has consumed the discharged water. That is, even if the discharge of purified water is detected by the user who selected the water purification function, the control unit 180 calculates the water intake amount of the user according to the result of sensing the water intake state of the user, Related information can be displayed on the touch screen 201. The water intake state of the user can be sensed through the image of the user who is currently drinking the discharged water.

FIG. 10 is a flowchart illustrating an operation of calculating a water intake amount differently according to a user's water intake state while the water purification function is performed in the refrigerator 100 according to an embodiment of the present invention.

10, when the controller 180 of the refrigerator 100 according to the embodiment of the present invention detects whether the purified water is discharged in step S902, the controller 180 controls the controller 141, The user who has selected the water purification function can sense the water-consuming image (S1000). Then, based on the sensed image, it is possible to determine whether the user directly ingested water (S1002).

For example, the control unit 180 can detect a container storing the discharged water from the sensed image. The mouth of the user can be detected from the sensed image. The control unit 180 may detect whether the user has taken the discharged water directly according to the distance between the container detected from the sensed image and the mouth of the user. That is, when the user moves the container storing the discharged water to the vicinity of the user's mouth, the control unit 180 can reduce the separation distance between the detected container and the user's mouth, If the distance is less than the distance, the controller 180 may determine that the user has taken the discharged water immediately. However, when the distance from the image sensed by the user who has selected the purified function in the vicinity of the refrigerator 100 is not reduced to a predetermined distance or less, the controller 180 determines that the user has not taken the discharged water directly It can be judged.

If it is determined in step S1002 that the user has consumed the discharged water, the controller 180 may determine that the user has consumed the entire amount of the discharged water. Accordingly, the control unit 180 may update the water intake amount of the user who has selected the water purification function by summing up the current total amount of the discharged water and the water intake amount information of the user stored up to now (S1004).

However, if it is determined in step S1002 that the user has not consumed the discharged water, the controller 180 may determine that the user has consumed only a part of the amount of the discharged water. Accordingly, the control unit 180 may update the water intake amount of the user who has selected the water purification function by summing a part of the water supply amount and the water consumption amount information of the user stored up to now (S1006).

On the other hand, in step S1006, the amount of water that the user considers to be consumed may be determined according to a predetermined ratio. In this case, the controller 180 may update the water intake amount of the user by reflecting only a part of the amount of the discharged water at a predetermined ratio.

Alternatively, in step S1006, the control unit 180 may determine that the user has consumed only a part of the amount of water currently discharged according to the result of sensing the image of the user who selected the integer function. For example, if it is determined in step S1002 that the user has not consumed water immediately, the control unit 180 determines whether the user has selected the current integer function from the sensed image or the voice sensed through the microphone, You can detect if there is a person. Based on the number of persons to be sensed, it can be determined that the user consumed at least a part of the amount of the discharged water. That is, the control unit 180 may determine the amount of water currently consumed by the user, based on the amount of water currently dispensed, divided by the number of other people sensed including the user.

Therefore, even if the user does not directly take out the discharged water, if the other person is not detected around the user, the entire discharged water can be reflected in the user's water intake amount. On the other hand, if a large number of people are detected around the user, the amount of water reflected in the user's water intake may be reduced.

11 illustrates an example in which information related to a user's water intake amount is displayed through the touch screen 201 formed on the door 210 when the purified function is performed in the refrigerator 100 according to an embodiment of the present invention Fig.

11, the first diagram of FIG. 11 shows that the screen information 1102 related to the integer function is displayed on the touch screen 201 according to the user's selection through the touch input or the management menu forming the predetermined pattern As shown in Fig. 11, the screen information 1102 includes a graphic object 1100 for indicating that an integer function is selected, a graphic object 1110 for selecting a discharge of purified water or ice, And graphical objects 1120, 1122, and 1124 for selecting a user currently using the integer function.

In a state in which the screen information shown in the first drawing of Fig. 11 is displayed, the control unit 180 can select a user who uses the integer function. For example, when there is a touch input to any one of the graphic objects 1120, 1122, and 1124 corresponding to pre-stored users, the control unit 180 outputs screen information related to the user information corresponding to the selected graphic object And controls the touch screen 201 so that the touch screen 201 is displayed. For example, the screen information may include watering information and / or moisture uptake guide information associated with selected user information.

The second diagram of FIG. 11 shows an example of the touch screen 201 displaying various information related to the recognized user. As shown in the second diagram of FIG. 11, the control unit 180 displays the name 1130 of the currently recognized user and information 1132 related to the amount of water that the recognized user has ingested up to now on the touch screen 201 Can be displayed. The amount information 1132 of the intake water may be displayed according to a preset weight or a unit of volume.

In addition, it may be displayed as information on the currently set water intake recommendation amount or the ratio of the water intake amount accumulated so far to the target intake amount to guide the water consumption of the selected user.

The memory 170 may store the selected user information together with the water supply information discharged by the water purification apparatus 190. The controller 180 stores the water supply information together with the user information, and when the user is selected again, the controller 180 may form the water intake guide information based on the user information and the water supply information.

When the touch input is received in the guide information, the control unit may control the water purifier 190 to discharge the water according to the calculated water intakes. In this case, the user can receive the set amount of water without selecting himself / herself, so that the target intake amount can be reached more quickly.

Although not shown in the figure, the controller 180 controls the water purifier 190 to discharge water by touch input applied to the screen information, The touch screen 201 can be controlled. Accordingly, the user can receive water while checking the amount of water to be drunk.

In the above description, the user using the integer function is recognized by selecting a graphic object corresponding to a specific user. Alternatively, the control unit 180 may automatically display the user according to the detection result of the sensing unit 140 Of course, be recognized. In this case, the control unit 180 may activate the sensing unit 140 based on the water discharge by the water supply unit 190.

In this case, when the integer function is selected according to the selection through the touch input or the management menu forming the preset pattern, the controller 180 displays the screen information as shown in the first drawing of FIG. 11, The user who selected the integer function can be recognized based on the detection result of the user. In this case, the user information recognized according to the recognition result can be displayed on the touch screen 201 as shown in the second drawing of FIG. 11, without selecting a specific user.

Meanwhile, in this state, the controller 180 can detect whether the purified water is discharged or not. For example, as shown in the third diagram of FIG. 11, when the graphic object 1110 for selecting discharge of purified water is selected by the user, the control unit 180 discharges a predetermined amount of water or ice through the dispenser . And the user's water intake amount can be updated according to the amount of discharged water or ice. In this case, the control unit 180 may update the water intake amount of the user by reflecting only a part of the discharged water or ice, based on the result of sensing the state of the discharged water or ice by the user.

The control unit 180 may display the information related to the updated water intake amount on the touch screen 201. In this case, as shown in the fourth figure of FIG. 11, the updated water intake amount information is the ratio of the updated water intake amount to the currently set water intake recommended amount or target intake amount, Lt; / RTI &gt;

The controller 180 may adjust the transparency of one area of the touch screen on which the moisture intake guide information is output. Although not shown in the figure, the water image may be output in a state where the transparency increases or decreases by an amount of water that increases as the amount of water increases with respect to the target intake amount. Alternatively, the controller 180 adjusts the transparency of one area corresponding to the moisture intake amount of the front surface of the touch screen 201 based on the information of the moisture intake guide of the specific user so that the amount of moisture to be consumed gradually increases Can be displayed.

Alternatively, the control unit 180 may adjust the transparency of one area of the touch screen so that the storage room in the refrigerator can be seen while the moisture intake guide information is output. Preferably, the one region is disposed in the storage chamber and corresponds to a region in which a food item capable of consuming moisture is disposed.

Accordingly, the user can view the food that can take the moisture of the touch screen 201 with improved transparency, thereby increasing the water intake. The guide information may be output together with the transparency increased. In this case, the guide information may be a graphic image indicating a region where the transparency is improved.

The controller 180 may further display information on the amount of water that is not available when the currently updated water intake amount is less than the water intake recommended amount or the target intake amount. In this case, the control unit 180 may display the amount of the insufficient amount of water as ratio information of the currently set water intake recommendation amount or the target intake amount as shown in the fourth drawing of FIG. 11, Can be displayed.

According to the above description, the controller 180 of the refrigerator 100 according to the embodiment of the present invention can transmit the water supply information and / or the moisture intake guide information to a predetermined external device. For example, the external device may be a mobile terminal of a user who currently selects the integer function.

In this case, the control unit 190 determines whether or not the ratio of the updated water intake amount to the currently set water intake recommended amount or target intake amount, and the water intake recommended amount When the target intake amount is not satisfied, information on the amount of insufficient water can be transmitted to the mobile terminal. Therefore, the user can check the information on his / her own water intake even in a situation where the user can not confirm the touch screen 201 of the refrigerator 100 through the mobile terminal, and can take more water.

Meanwhile, when the information on the water intake amount is displayed through the mobile terminal, the controller 180 may receive the water intake amount information received through the mobile terminal. That is, the user can directly input the amount of water consumed by the user directly to the mobile terminal, and the amount of the input water can be transmitted to the refrigerator 100 through the mobile terminal. Then, the refrigerator 100 may update the user's water intake amount information based on the information received from the mobile terminal.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). In addition, the computer may include a controller 180 of the refrigerator 100. The foregoing detailed description, therefore, should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (10)

A main body having a storage chamber;
A door coupled to the main body and configured to open and close the storage chamber;
A touch screen disposed on one side of the door, outputting screen information, and capable of changing transparency based on a knock input;
A controller for controlling the touch screen to increase the transparency of one of the screen information based on a first knock input applied to the touch screen and to increase the transparency of the remaining area of the touch screen based on a second knock input, Wherein the refrigerator is a refrigerator. The method according to claim 1,
Wherein the screen information includes text and graphic objects,
Wherein the controller increases the transparency of the graphic object based on the first knock input.
3. The method of claim 2,
Wherein the text includes at least one of time information, status information of a storage room, data related to a user, weather information, and pre-stored memo information,
Wherein the graphic object is displayed in a central area of the touch screen. The method of claim 3,
Wherein the controller controls the touch screen to change a position at which the graphic object is output based on a touch input applied to the touch screen. 3. The method of claim 2,
Wherein the location of the graphic object with increased transparency is changed on the touch screen according to the passage of time. The method according to claim 1,
Wherein the control unit switches a region of the touch screen to a transparent state based on a predetermined touch input to which the touch screen is applied, in a state where the screen information is displayed in an opaque state on the touch screen. The method according to claim 6,
One area of the touch screen is determined by the touch position of the predetermined touch input,
Wherein the control unit adjusts the size of the one area based on the touch range of the predetermined touch input. The method according to claim 1,
Wherein when the entire area of the touch screen is changed to a transparent state by the second knock input, the touch screen outputs at least one graphic object related to an object disposed in the storage room. 9. The method of claim 8,
Wherein the control graphic object for controlling the transparency of the touch screen is output to one area of the touch screen in a state where the entire area of the touch screen is changed to a transparent state by the second knock input. 10. The method of claim 9,
The control unit switches the touch screen to an opaque state based on a touch input applied to the control image,
Wherein the touch screen outputs the graphic object in the opaque state.

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