WO2006135167A2

WO2006135167A2 - Air-conditioner

Info

Publication number: WO2006135167A2
Application number: PCT/KR2006/002211
Authority: WO
Inventors: Choong Hee Lee; Chang Woong An; Kam Gyu Lee; Ju Ho Ock; Dong Jin Kim
Original assignee: Lg Electronics Inc.
Priority date: 2005-06-17
Filing date: 2006-06-09
Publication date: 2006-12-21
Also published as: EP1891381B1; WO2006135167A3; EP1891381A4; EP1891381A2

Abstract

An air-conditioner which includes a display (256) for displaying a variety of images and a sound output unit (222), etc. is disclosed. The air-conditioner includes: a display (256) for displaying operation states of the air-conditioner using an image or message; and a soun output unit (222) for generating different sounds according to content data displayed on th display. Therefore, a display window displays states of the air-conditioner and a variety of images (avatars) and sound thereon, such that a user can visually and audibly recognize operation states of the air-conditioner or other information at the same time.

Description

AIR-CONDITIONER

Technical Field

[1] The present invention relates to an air-conditioner, and more particularly to an air- conditioner which includes a display for displaying a variety of images and a sound output unit, etc. Background Art

[2] Generally, an air-conditioner is arranged at any indoor space or wall of an office or household, and acts as a heating/cooling device for heating/cooling room air. The air- conditioner includes a compressor, a condenser, an expansion valve, and an evaporator, such that it configures a cooling cycle. In this case, the compressor, the condenser, the expansion valve, and the evaporator are sequentially connected.

[3] Specifically, the air-conditioner includes an outdoor unit (i.e., an outdoor or heat- radiation side) arranged outdoors and an indoor unit (i.e., an indoor or heat-absorbing side) arranged indoors. The outdoor unit includes a condenser (i.e., an outdoor heat- exchanger) and a compressor. The indoor unit includes an evaporator (i.e., an indoor heat-exchanger).

[4] As well known to those skilled in the art, the air-conditioner is generally classified into a separation-type air-conditioner wherein an indoor unit and an outdoor unit are installed separately from each other, and an integration-type air-conditioner wherein an indoor unit and an outdoor unit are integrated in one unit.

[5] FIG. 1 shows the appearance of an indoor unit for use in a conventional separation- type air-conditioner.

[6] Referring to FIG. 1, the separation-type air-conditioner is divided into an indoor unit 10 and an outdoor unit (not shown), and includes a refrigerant pipe (not shown) located between the indoor unit 10 and the outdoor unit.

[7] Lateral- and back- appearances of the indoor unit 10 are formed by a cabinet 20 configured in the form of a vertically-elongated shape. A base 22 is located under the cabinet 20, and a front panel 24 forming a front frame of the indoor unit 10 is located on the top of the base 22.

[8] A display 30 for displaying operation states of the air-conditioner is located at the center part of the front panel 24. A button unit 32 composed of a variety of buttons for operating the air-conditioner is located at a lateral surface of the display 30.

[9] The display 30 is generally comprised of Light Emitting Diodes (LEDs). Therefore, the display 30 is switched on when the air-conditioner is powered on, such that it displays operation states of the air-conditioner. If the air-conditioner is powered off, the display 30 is switched off.

[10] In more detail, the indoor unit 10 includes a controller (not shown) for controlling a variety of operations of the air-conditioner. Upon receiving a command from the controller, the display 30 displays the direction of the wind and strength/weakness degrees of the wind. In addition, the display 30 displays a room temperature and a desired temperature. In other words, upon receiving a command from the controller (not shown), the display 30 externally displays air-conditioner state information established by a user using the LEDs.

Disclosure of Invention Technical Problem

[11] However, the above-mentioned conventional air-conditioner has the following problems.

[12] The display 30 switches on or off a screen image composed of LEDs, such that it can statically display a current temperature or operation state. Therefore, a user has difficulty in recognizing an air-conditioning state or air-cleaning state of the air- conditioner, such that the conventional air-conditioner is unable to provide the user with information other than the air-conditioner state information or additional functions.

[13] The conventional air-conditioner includes a single controller (not shown) for operating the air-conditioner and content data (image data, etc.) displayed on the display 30.

[14] Therefore, if a user desires to change a program for controlling content data displayed on the display 30, the user must unavoidably change all programs of the controller.

[15] Although content data displayed on the display 30 must be freely changed according to a user request, the single controller contained in the conventional air- conditioner consumes a long period of time to change a current program to another program, and increases the complexity of associated tasks. Technical Solution

[16] Accordingly, the present invention is directed to an air-conditioner that substantially obviates one or more problems due to limitations and disadvantages of the related art.

[17] An object of the present invention devised to solve the problem lies on an air- conditioner for implementing a variety of images (or avatars).

[18] Another object of the present invention devised to solve the problem lies on an air- conditioner which includes a display for displaying an image or message and a sound output unit for outputting variety of sound according to a display content of the display. [19] A further object of the present invention devised to solve the problem lies on an additional display controller for controlling a variety of avatars displayed on the display.

[20] The object of the present invention can be achieved by providing an air-conditioner comprising: a display for displaying operation states of the air-conditioner using an image or message; and a sound output unit for generating different sounds according to content data displayed on the display.

[21] Preferably, the display is directly controlled by a main controller capable of controlling the air-conditioner.

[22] Preferably, the display is controlled by a display controller which is installed separately from a main controller capable of controlling the air-conditioner, such that air-conditioner's state information received from the main controller is displayed on the display by the display controller.

[23] Preferably, the sound data generated from the sound output unit is indicative of voice, melody, or music data.

[24] Preferably, the sound output unit includes a plurality of buzzers or speakers.

[25] Preferably, the voice, melody, or music data generated from the sound output unit is changed according to a variety of operation states (e.g., heating, cooling, dehu- midifying, and humidifying operation states) of the air-conditioner.

[26] In another aspect of the present invention, provided herein is an air-conditioner comprising: a main controller for controlling the air-conditioner; a display controller for receiving state information of the air-conditioner from the main controller, and controlling the received state information to be displayed; and a display for displaying image or state information according to a control signal of the display controller.

[27] Preferably, the main controller communicates with the display controller by wire or wirelessly.

[28] Preferably, the power is supplied to the display controller according to a control signal of the main controller.

[29] Preferably, the air-conditioner further comprises: a sound output unit for generating different sounds according to images or messages implemented on the display.

[30] Preferably, the sound data generated from the sound output unit is stored in a memory.

[31] Preferably, the display displays a two-dimensional (2D) image or a three-dimensional (3D) image.

[32] Preferably, the display includes: an image display for displaying an image file; and an operation display for displaying operation states of the air-conditioner/

[33] Preferably, the display includes a memory for storing the displayed image data (or avatar data). Advantageous Effects

[34] The air-conditioner according to the present invention includes a display for implementing an image or message upon receiving a command from a controller, and a sound output unit.

[35] Therefore, a display window displays states of the air-conditioner and a variety of images (avatars) and sound thereon, such that a user can easily recognize a variety of information by referring to display contents of the display window.

[36] In conclusion, the user can visually and audibly recognize operation states of the air-conditioner or other information at the same time, resulting in greater convenience of the user and an increased customer's interest.

[37] The air-conditioner includes a main controller for controlling the air-conditioner, a display controller for displaying displayed content data, and a display for implementing an image or message upon receiving a command from the display controller.

[38] The air-conditioner according to the present invention includes an additional display controller for controlling content data displayed on the display. If there is a need to change content data displayed on the display, the user can easily change the content data by changing a program of the display controller to another program, such that production costs and the number of production processes can be reduced.

[39] Moreover, a common use of electronic components contained in the air-conditioner is available. In more detail, some of a plurality of display controllers may be connected to the main controller as necessary, and a plurality of main controllers for various models may also be connected to a single display controller, resulting in the implementation of a common use of electronic components and modularization of the same. Brief Description of the Drawings

[40] The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention.

[41] In the drawings:

[42] FIG. 1 is a perspective view illustrating an indoor unit of a conventional separation- type air-conditioner;

[43] FIG. 2 shows the appearance of an indoor unit of an air-conditioner according to the present invention;

[44] FIG. 3 is a perspective view illustrating an open state of a front panel of an indoor unit of the air-conditioner according to the present invention;

[45] FIG. 4 is a front view illustrating a detailed configuration of a button unit mounted to a front panel of an indoor unit of the air-conditioner according to the present invention;

[46] FIG. 5 is a block diagram illustrating a control system of the air-conditioner in accordance with a first preferred embodiment of the present invention;

[47] FIG. 6 is a block diagram illustrating a control system of the air-conditioner in accordance with a second preferred embodiment of the present invention;

[48] FIG. 7 shows a variety of display modes displayed on a display window in accordance with a preferred embodiment of the present invention; and

[49] FIGS. 8-9 are a flow chart illustrating a display control method for an air- conditioner according to the present invention. Best Mode for Carrying Out the Invention

[50] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[51] FIG. 2 shows the appearance of an indoor unit of an air-conditioner according to the present invention.

[52] Referring to FIG. 2, the air-conditioner includes an indoor unit 100 and an outdoor unit (not shown). A front panel 110 is located at the front of the indoor unit 100. The front panel 110 is configured in the form of a vertically-elongated shape, such that it acts as a front frame of the indoor unit 100.

[53] A hinge 112 is located at right upper/lower ends of the front panel 110, such that it serves as a rotation center of the front panel 110. Therefore, the front panel 110 rotates in a counterclockwise direction on the basis of a right end of the front panel 110, such that it can be opened from the indoor unit 100.

[54] A display window 120 is located at the center of an upper part of the front panel

110. The display window 120 displays at least one avatar. Preferably, the display window 120 may be implemented with a Liquid Crystal Display (LCD), etc.

[55] A button unit 130 is located under the display window 120. The button unit 130 includes a plurality of operation buttons such as a power-supply button, such that a user can easily adjust a variety of operations of the air-conditioner.

[56] A remote-controller receiver 140 is located under the button unit 130. The remote- controller receiver 140 receives signals from the remote-controller.

[57] FIG. 3 is a perspective view illustrating an open state of the front panel 110 of the indoor unit 100 of the air-conditioner. As can be seen from FIG. 3, the front panel 110 rotates around an axis of the hinge 112, such that it is opened from the indoor unit.

[58] A display 150 is located at a back surface of the front panel 110. The display 150 includes a variety of electronic components to control a variety of avatars (images) displayed on the display window 120.

[59] The display 150 further includes a Universal Serial Bus (USB) mounting unit 152. A USB memory 160 is selectively mounted to the USB mounting unit 152. Therefore, the display 150 can easily receive external data via the USB memory 160.

[60] Needless to say, data can be downloaded from the USB memory 160 or a variety of mobile recording mediums, or can also be transmitted to a destination via the USB memory 160 or the mobile recording mediums. Likewise, the display 150 may download data via the Internet if required. For example, data can also be transmitted to a destination via an IEEE 1394 port instead of the USB memory 160.

[61] The display 150 further includes a speaker 162. The speaker 162 is used as an example of the sound output unit 222, and outputs music or melody sound.

[62] In the meantime, an air-cleaning unit 170 for filtering impurities or alien substances from the air so as to clean the air is located at an inner lower part of the indoor unit 100. A plurality of filters are located at the air-cleaning unit 170, such that a variety of impurities (e.g., dust or unpleasant odorous particles, etc.) are filtered by the filters of the air-cleaning unit 170.

[63] A plurality of components (e.g., a heat-exchanger) (not shown) for air-conditioning functions (e.g., a cooling function and a heating function) are contained in the indoor unit 100. Functions and configurations of the above-mentioned components are well known to those skilled in the art, such that it will herein be omitted for the convenience of description.

[64] FIG. 4 is a front view illustrating a detailed configuration of a button unit mounted to a front panel of an indoor unit of the air-conditioner according to the present invention.

[65] A detailed configuration of the button unit 130 is depicted in FIG. 4. Individual keys contained in the button unit 130 may be implemented in various ways, for example, a button-press scheme or a touch-screen scheme, etc.

[66] An operation/stop button 132 is located at the center of the button unit 130.

[67] The operation/stop key 132 is adapted to perform or stop an air-conditioning function of the air-conditioner. In more detail, the operation/stop key 132 is used as a key for powering on the air-conditioner when the air-conditioning function of the air- conditioner stops its operation. The operation/stop key 132 is used as a key for powering off the air-conditioner when the air-conditioning function of the air- conditioner is performed.

[68] The air-conditioner according to the present invention further includes an additional function such as an air-conditioning function. Generally, the air-conditioner mainly performs the air-conditioning function to cool/heat room air via a heat-exchanging operation. A first case in which the air-conditioning function of the air-conditioner is executed is called an "Operation". A second case in which the air-conditioning function of the air-conditioner is not executed is called a "Stop". [69] Two temperature keys 134 are located above or below the operation/stop key 132.

[70] Each temperature key 134 acts as a button for setting a temperature state. The upper temperature button acts as a button for increasing a temperature, and the lower temperature button acts as a button for reducing the temperature.

[71] The temperature key 134 is not operated while the air-conditioner stops its operation. Specifically, the temperature key 134 is used as a key for increasing/ reducing the temperature during an operation mode (e.g., a character operation mode), but it should be noted that the temperature key 134 is used as an up/down movement key during a specific function selection mode (e.g., an album function).

[72] In the meantime, two volume keys 135 are located at right and left sides of the operation/stop key 132, respectively, and adjust the volume of sound. In other words, the volume keys 135 adjust the volume of sound outputted via a speaker (not shown) contained in the indoor unit 100 of the air-conditioner. The left volume key 135 acts as a button for reducing the volume of sound, and the right volume key 135 acts as a button for increasing the volume of sound. The volume key 135 also acts as a right/left movement key such as the temperature key 134.

[73] A wind- volume key 136 is located at a left lower end of the button unit 130. The wind- volume key 136 is used as a key for setting the volume of wind generated from the air-conditioner. The wind- volume key 136 is operated only when the air- conditioner is operated, and is not operated when the air-conditioner stops its operation.

[74] A plasma key 137 is located at a right lower end of the button unit 130. The plasma key 137 is used as a key for operating the air-cleaning unit 170 contained in the air- conditioner. The plasma key 137 is designed to be operated during an operation mode or stop mode of the air-conditioner.

[75] Therefore, the air-cleaning unit 170 performs the air-conditioning function of the air-conditioner, and at the same time cleans air. Also, the air-cleaning unit 170 can operate alone even though the air-conditioner is in the stop mode, such that it cleans room air.

[76] A left key 138 is located at a left upper end of the button unit 130, and a right key

139 is located at a right upper end of the button unit 130.

[77] If the air-conditioner is in the stop mode, the left key 138 and the right key 139 are not operated. If the air-conditioner is in the operation mode, the left key 138 and the right key 139 are adapted to select a variety of menus from among the following function selection modes.

[78] A system for controlling the air-conditioner according to a first preferred embodiment of the present invention will hereinafter be described with reference to FIG. 5. [79] FIG. 5 is a block diagram illustrating a control system of the air-conditioner according to the present invention.

[80] Referring to FIG. 5, the control system for use in the air-conditioner includes the main controller 200 for controlling overall operations of the air-conditioner. A variety of electronic components are connected to the main controller 200, such that the main controller 200 can receive/transmit variety of data from/to the electronic components.

[81] In more detail, the main controller 200 includes a main memory 202. The main memory 202 is used as a storage medium basically mounted to the air-conditioner, such that it stores variety of data. For example, the main memory 202 stores sound data generated from the sound output unit 222, etc.

[82] The main controller 200 is connected to a main input unit 210, a sensor unit 212, a signal receiver 214, a communication unit 215, an indoor-unit motor 216, an outdoor- unit motor 218, and a compressor 220, etc.

[83] The main input unit 210 allows a user to enter an operation signal of the air- conditioner via the button unit 130. The input signal received via the main input unit 210 is transmitted to the main controller 200.

[84] The sensor unit 212 includes a plurality of sensors mounted to the air-conditioner, for example, a temperature sensor, a moisture sensor, a dust sensor, and a gas sensor, etc. Accordingly, the sensor unit 212 measures an air state and an air-pollution level, such that the measurement values detected by the sensor unit 212 are transmitted to the main controller 200.

[85] The signal receiver 214 receives an external signal in the same manner as in the remote-controller receiver 140. A signal received in the receiver 215 is also transmitted to the main controller 200.

[86] The communication unit 215 may also be designed to receive wireless communication data (or signal) from a computer (or the Internet). In other words, the communication unit 215 includes a communication interface, such that it can receive a variety of signals from an external part or can transmit state information of the air- conditioner to the external part.

[87] The indoor-unit motor 216 is contained in the indoor unit 100 of the air-conditioner, and rotates a fan. The indoor-unit motor 216 is operated by a signal received from the main controller 200. For example, if the main input unit 210 transmits an input signal of the operation/stop key 132 to the main controller 200, the main controller 200 operates the indoor-unit motor 216.

[88] The main controller 200 controls a rotation speed of the indoor-unit motor 216 on the basis of an air-pollution level received from the sensor unit 212.

[89] The compressor 220 and the outdoor-unit motor 218 are operated by the main controller 200. In more detail, if a user enters the operation/stop key 132 via the main input unit 210 in the same manner as in the indoor-unit motor 216, or if the user enters an operation command via the remote-controller receiver 140, the main controller 200 operates the compressor 220 and the outdoor-unit motor 218, etc., such that the air- conditioner is switched from the stop mode to the operation mode.

[90] The main controller 200 is also connected to additional devices (e.g., an air- cleaning unit 170 and a sound output unit 222, etc.).

[91] As previously stated above, the air-cleaning unit 150 filters impurities from the air to clean the air. The main controller 200 controls operations of the air-cleaning unit 170 upon receiving a signal from the main input unit 210. In more detail, as described above, the air-cleaning unit 170 is operated by an input signal of the plasma key 137 contained in the button unit 130.

[92] The main controller 200 automatically controls the degree of an air-cleaning operation (i.e., strength or weakness of the air-cleaning function) of the air-cleaning unit 170. In more detail, the main controller 200 detects an air-pollution level (e.g., dust or gas, etc.) measured by the sensor unit 212, and automatically adjusts the strength or weakness of the air-cleaning function of the air-cleaning unit 170 on the basis of the detected air-pollution level.

[93] A sound output unit 222 outputs sound or audio data, and is composed of the speaker 162 or buzzer (not shown), etc., such that it can output a variety of sounds (e.g., melody sound, or music sound, etc.). Preferably, the air-conditioner may include a plurality of speakers 162 or a plurality of buzzers as necessary.

[94] In more detail, if an unexpected error occurs in any components of the air- conditioner, the sound output unit 222 outputs buzzer sound or a variety of sounds (voice/melody /music) according to individual avatar images or messages displayed on the display 256. Preferably, the volume of the output sound of the sound output unit 22 may be adjusted by the user.

[95] The sound output unit outputs different melody or music sounds according to an operation state of the air-conditioner or the screen image displayed on the display 256. In more detail, provided that the air-conditioner is operated in a heating mode, a cooling mode, a dehumidifying mode, or a humidifying mode, the sound output unit 222 outputs different melody or music sound according to the individual modes. For example, if the air-conditioner is in the cooling mode, the sound output unit 222 outputs a specific sound (e.g., the sound of the waves or the sound of wind) capable of reminding the user of cold winter. If the air-conditioner is in the heating mode, the sound output unit 222 a specific sound (e.g., the chirp of a cicada) capable of reminding the user of hot summer.

[96] In the meantime, the sound output unit 222 further includes a sensor (not shown) for detecting a human being. Therefore, the sound output unit 222 may output music sound only when the movement of the human being is detected. The sound output unit 222 includes an additional sound-cancellation function (also called a mute function), such that it may prevent additional music sounds from being generated as necessary.

[97] The main controller 200 forms a display screen image suitable for operating the air- conditioner via the display 150. Therefore, data received in the display controller 250 via a data input unit 258 may also be transmitted to the main controller 200. A signal received via a display input unit 254 is transmitted to the main controller 200, such that it outputs sound via the sound output unit 222.

[98] The main controller 200 controls externally-displayed content data. Specifically, the main controller 200 displays different avatars associated with operation states of the air-conditioner on the display 256.

[99] The main controller 200 is further connected to a display input unit 254, a display

256, and a data input unit 258, etc.

[100] The main memory 202 stores various data (e.g., a photo-avatar or a character- avatar, etc.) displayed on the display 150. In other words, the display memory 252 stores image data (e.g., avatar) displayed on the display 256.

[101] The main memory 202 stores sound data generated from the sound output unit 222.

The sound data may be downloaded from an external part. The downloaded sound data may be stored in a specific memory, and may also be deleted from the specific memory.

[102] The display input unit 254 allows a user to enter an operation signal of the display

150 via the button unit 130 or the remote-controller, etc. The display window 120 of the front panel 110 is comprised of a touch-screen, such that the user may enter a control command by touching the display window 120.

[103] The display 256 displays individual operation states of the air-conditioner in the form of an image or message. In other words, the display 256 displays a variety of photo images, moving mages, or character images according to a command of the main controller 200. Therefore, the above-mentioned display window 120 is used as an example of the display 256.

[104] The display 256 implements the image or message according to a command of the display controller. The display 256 includes an image display 256' for displaying an image file, and a state display 256" for displaying operation states of the air- conditioner, as shown in FIG. 6.

[105] The image display 256' displays an avatar or real image according to operation states of the air-conditioner. The image file displayed on the image display 256' may be comprised of at least one of a JPEG file, a BMP file, and a TIFF file. The JPEG file, the BMP file, and the TIFF file have been widely used as extensions indicative of image data, and a detailed description thereof will herein be omitted for the convenience of description.

[106] The state display 256" displays a variety of information (i.e., an operation state of the air-conditioner, a current temperature, or a setup temperature) in the form of a character (text) message or numerical message.

[107] Therefore, image (avatar) data or state data of the air-conditioner are displayed on the display 256 at the same time. In other words, a variety of images (avatars) are displayed on the image display 256', and state information of the air-conditioner is displayed on the state display 256".

[108] The above-mentioned display 256 may be comprised of a Liquid Crystal Display

(LCD) or an organic EL (Electro-Luminescence), etc.

[109] The LCD is an electronic component for converting a variety of electrical information generated from a variety of devices into visual information using a variation in liquid crystal transmittance based on an input voltage.

[110] The organic EL is indicative of an organic material formed by a luminescence effect acquired when a current signal flows in a fluorescent organic compound. The organic EL is referred to as an Organic Light Emitting Diode (OLED) or an organic diode.

[I l l] The aforementioned LCD and the aforementioned EL have been recently researched by many developers, and have been widely used throughout the world, such that their detailed description will herein be omitted for the convenience of description.

[112] As stated above, the main controller 200 controls image-, character-, or numerical- data displayed on the display 256. An execution program of the main controller 200 may be implemented with a variety of languages.

[113] For example, the execution program is implemented with JAVA program language or C language (e.g., at least one of C, C++, or C# program languages).

[114] Preferably, the display controller 250 may implement a two-dimensional (2D) image on the display 256, or may implement a three-dimensional (3D) image on the display 256. In other words, a planar image or/and a stereoscopic image can be implemented on the display 256.

[115] The data input unit 258 receives data (or signals) from an external part via the USB memory 160 or the IEEE1394 port. The data input unit 258 allows the user to enter a photo or image to be displayed on the display window 120 or a music file (including an MP3 file) to be outputted via the sound output unit 222.

[116] A control system for an air-conditioner according to a second preferred embodiment of the present invention will hereinafter be described with reference to FIG. 6.

[117]

[118] FIG. 6 is a block diagram illustrating a control system of the air-conditioner in accordance with a second preferred embodiment of the present invention.

[119] Referring to FIG. 6, the control system for use in the air-conditioner includes the main controller 200 for controlling overall operations of the air-conditioner. A variety of electronic components are connected to the main controller 200, such that the main controller 200 can receive/transmit variety of data from/to the electronic components.

[120] In more detail, the main controller 200 includes a main memory 202. The main memory 202 is used as a storage medium basically mounted to the air-conditioner, such that it stores variety of data. For example, the main memory 202 stores sound data generated from the sound output unit 222, etc.

[121] The main controller 200 is connected to a main input unit 210, a sensor unit 212, a signal receiver 214, a communication unit 215, an indoor-unit motor 216, an outdoor- unit motor 218, and a compressor 220, etc.

[122] The main input unit 210 allows a user to enter an operation signal of the air- conditioner via the button unit 130. The input signal received via the main input unit 210 is transmitted to the main controller 200.

[123] The sensor unit 212 includes a plurality of sensors mounted to the air-conditioner, for example, a temperature sensor, a moisture sensor, a dust sensor, and a gas sensor, etc. Accordingly, the sensor unit 212 measures an air state and an air-pollution level, such that the measurement values detected by the sensor unit 212 are transmitted to the main controller 200.

[124] The signal receiver 214 receives an external signal in the same manner as in the remote-controller receiver 140. A signal received in the receiver 215 is also transmitted to the main controller 200.

[125] The communication unit 215 may also be designed to receive wireless communication data (or signal) from a computer (or the Internet). In other words, the communication unit 215 includes a communication interface, such that it can receive a variety of signals from an external part or can transmit state information of the air- conditioner to the external part.

[126] The indoor-unit motor 216 is contained in the indoor unit 100 of the air-conditioner, and rotates a fan. The indoor-unit motor 216 is operated by a signal received from the main controller 200. For example, if the main input unit 210 transmits an input signal of the operation/stop key 132 to the main controller 200, the main controller 200 operates the indoor-unit motor 216.

[127] The main controller 200 controls a rotation speed of the indoor-unit motor 216 on the basis of an air-pollution level received from the sensor unit 212.

[128] The compressor 220 and the outdoor-unit motor 218 are operated by the main controller 200. In more detail, if a user enters the operation/stop key 132 via the main input unit 210 in the same manner as in the indoor-unit motor 216, or if the user enters an operation command via the remote-controller receiver 140, the main controller 200 operates the compressor 220 and the outdoor-unit motor 218, etc., such that the air- conditioner is switched from the stop mode to the operation mode.

[129] The main controller 200 is also connected to additional devices (e.g., an air- cleaning unit 170 and a sound output unit 222, etc.).

[130] As previously stated above, the air-cleaning unit 150 filters impurities from the air to clean the air. The main controller 200 controls operations of the air-cleaning unit 170 upon receiving a signal from the main input unit 210. In more detail, as described above, the air-cleaning unit 170 is operated by an input signal of the plasma key 137 contained in the button unit 130.

[131] The main controller 200 automatically controls the degree of an air-cleaning operation (i.e., strength or weakness of the air-cleaning function) of the air-cleaning unit 170. In more detail, the main controller 200 detects an air-pollution level (e.g., dust or gas, etc.) measured by the sensor unit 212, and automatically adjusts the strength or weakness of the air-cleaning function of the air-cleaning unit 170 on the basis of the detected air-pollution level.

[132] A sound output unit 222 outputs sound or audio data, and is composed of a speaker, etc., such that it can output a variety of sounds (e.g., buzzer sound, melody sound, or music sound, etc.) For example, if an unexpected error occurs in any components of the air-conditioner, the sound output unit 222 outputs buzzer sound or various melody sounds based on individual avatar images or messages displayed on the display 256. In addition, if a music file is executed, the sound output unit 222 may output various music sounds.

[133] The main controller 200 communicates with the display controller 250 contained in the display 150. In other words, the main controller 200 communicates with the display controller 250 by wire or wirelessly.

[134] In more detail, air-conditioner operation signals such as an input signal of the operation/stop key 132 contained in the main input unit 210 are transmitted to the main controller 200, and are also be transmitted to the display controller 250, such that the display controller 250 forms a display screen image suitable for operating the air- conditioner. Upon receiving current temperature information from the main controller 200, the display controller 250 receives the temperature information, and implements an image corresponding to the received temperature information on the screen.

[135] Preferably, the power-supply signal may be transmitted to the display controller 250 via the main controller 200. Therefore, the main controller 200 may selectively transmit the power-supply signal to the display controller 250.

[136] Data received in the display controller 250 via a data input unit 258 may also be transmitted to the main controller 200. A signal received via a display input unit 254 is transmitted to the main controller 200, such that it outputs sound via the sound output unit 222. [137] The display controller 250 controls displayed content data, and controls the display

256 to display state information of the air-conditioner and images upon according to a control signal of the main controller 200.

[138] The display controller 250 is connected to a display memory 252, a display input unit 254, a display 256, and a data input unit 258, etc.

[139] The display memory 252 is contained in the display 150, and stores various data

(e.g., a photo-avatar or a character- avatar, etc.) for the display 150. In other words, the display memory 252 stores image data (e.g., avatar) displayed on the display 256.

[140] The display input unit 254 allows a user to enter an operation signal of the display

[141] The display 256 displays photo images, moving images, or character images according to commands of the display controller 250.

[142] In more detail, the display 256 implements the image or message according to a command of the display controller 250. The display 256 includes an image display 256' for displaying an image file, and an operation display 256" for displaying operation states of the air-conditioner.

[143] The image display 256' displays an avatar or real image according to operation states of the air-conditioner. The image file displayed on the image display 256' may be comprised of at least one of a JPEG file, a BMP file, and a TIFF file. The JPEG file, the BMP file, and the TIFF file have been widely used as extensions indicative of image data, and a detailed description thereof will herein be omitted for the convenience of description.

[144] The operation display 256" displays a variety of information (i.e., an operation state of the air-conditioner, a current temperature, or a setup temperature) in the form of a character (text) message or numerical message.

[145] The above-mentioned display 256 may be comprised of a Liquid Crystal Display

(LCD) or an organic EL (Electro-Luminescence), etc.

[146] The LCD is an electronic component for converting a variety of electrical information generated from a variety of devices into visual information using a variation in liquid crystal transmittance based on an input voltage.

[147] The organic EL is indicative of an organic material formed by a luminescence effect acquired when a current signal flows in a fluorescent organic compound. The organic EL is referred to as an Organic Light Emitting Diode (OLED) or an organic diode.

[148] The aforementioned LCD and the aforementioned EL have been recently researched by many developers, and have been widely used throughout the world, such that their detailed description will herein be omitted for the convenience of description. [149] As stated above, the display controller 250 controls image-, character-, or numerical- data displayed on the display 256. An execution program of the display controller 250 may be implemented with a variety of languages.

[150] For example, the execution program is implemented with JAVA program language or C language (e.g., at least one of C, C++, or C# program languages).

[151] Preferably, the display controller 250 may implement a two-dimensional (2D) image on the display 256, or may implement a three-dimensional (3D) image on the display 256. In other words, a planar image or/and a stereoscopic image can be implemented on the display 256.

[152] The data input unit 258 receives data (or signals) from an external part via the USB memory 160 or the IEEE1394 port. The data input unit 258 allows the user to enter a photo or image to be displayed on the display window 120 or a music file (including an MP3 file) to be outputted via the sound output unit 222.

[153] A variety of display modes of the air-conditioner according to the first and second preferred embodiments of the present invention will hereinafter be described with reference to FIG. 7.

[154] FIG. 7 shows a variety of display modes displayed on a display window according to the present invention. In more detail, a variety of display modes displayed on the display window 120 are exemplarily shown in FIG. 7.

[155] According to the first preferred embodiment (See FIG. 5) of the present invention, the display modes shown in FIG. 7 are implemented by control operations of the main controller 200. According to the second preferred embodiment (See FIG. 6) of the present invention, the display modes shown in FIG. 7 are implemented by control operations of the display controller 250.

[156] Referring to FIG. 7, the display modes implemented by the display 256 include a standby mode 300 for indicating a standby state before an air-conditioning function is executed; an operation mode 320 for indicating current execution of the air- conditioning function; and a function selection mode 340 for allowing a user to select a variety of functions, etc.

[157] Generally, the standby mode 300 includes a screen-off mode 302 for displaying no image on a screen; a clock mode 304 for displaying a current time; a screen-saving mode 306 for executing a screen-saver program; and a user setup mode 308 for displaying an image established by a user. Accordingly, the standby mode 300 is designed to display at least one of the above-mentioned modes 302, 304, 306, and 308.

[158] In more detail, at least one of the screen-off mode 302, the clock mode 304, the screen-saving mode 306, and the user setup mode 308 has been generally set in the air- conditioner during a manufacturing process of the air-conditioner. However, if the user transmits a power-supply signal to the air-conditioner, the booting of the standby mode 300 is initially executed, such that the standby mode 300 is displayed on the display window 120.

[159] Needless to say, the setting information of the above-mentioned standby mode 300 may be changed to other information. In more detail, provided that the user may select a desired mode from among the screen-off mode 302, and the clock mode 304, the screen-saving mode 306, and the user setup mode 308, and the booting of the selected mode is executed, the selected mode may also be displayed on the display window 120 via the display 256.

[160] The screen-off mode 302 indicates that the display window 120 is powered off, such that the powered-off state of the display window 120 is maintained during the screen-off mode 302.

[161] The clock mode 304 indicates that a current time is displayed on the display window 120. Besides the current time information, the clock mode 304 further indicates month/year information, and at the same time may indicate a measurement value of the temperature sensor or the moisture sensor.

[162] The screen-saving mode 306 executes a predetermined screen-saving program. In more detail, the screen-saving mode 306 indicates that a screen saver is operated. Therefore, the screen-saving mode 306 displays a screen image acquired by the execution of the screen saver widely used for computers.

[163] The user setup mode 308 displays an image pre-established by the user. In other words, the user freely pre-establishes a desired photo-image (i.e., a user's photo-image or a user's family photo-image) or his or her character image during the user setup mode 308, such that the air-conditioner displays the above pre-established image upon receiving a power-supply signal.

[164] The operation mode 320 shows state information of an image implemented by the display 256 when the air-conditioner is operated by the operation/stop key 132 at the standby mode 300. The operation mode 320 is classified into a real-operation mode 322, a user-operation mode 324, and a character operation mode 326, etc.

[165] Therefore, if the air-conditioner is operated, any one of the real-operation mode

322, the user-operation mode 324, and the character operation mode 326 contained in the operation mode 320 is executed. In other words, any one of the user-established modes is executed.

[166] The real-operation mode 322 displays an actual-object image (or a real photo) pre- stored in the main memory 202. The above-mentioned actual-object image may be comprised of a still image or moving images.

[167] The user operation mode 324 uploads a user-desired image or user-desired moving images to the display memory 252. Accordingly, the user selects the uploaded image or moving images, and the selected image or moving images are displayed on the display window 120.

[168] The character operation mode 326 displays a pre-stored character on the display window 120. The above-mentioned character may be configured in the form of a still image or a moving character. For example, if the character operation mode 326 is executed, a skiing character is displayed on the display window 120, and it is preferable for the skiing character to be displayed in the form of moving images.

[169] In the meantime, the above-mentioned operation mode 320 is continuously operated on the condition that an additional key signal for executing another command is not applied to the air-conditioner. If the air-conditioner stops operation in the operation mode 320, the operation mode 320 returns to the standby mode 300. In this case, the air-conditioner may perform an automatic cleaning function 310 when returning to the standby mode 300. However, it should be noted that the above-mentioned automatic- cleaning function 310 can be executed on the condition that it is pre-set in the air- conditioner.

[170] The above-mentioned operation mode 320 may also be switched to the screen- saving mode 306 according to a user command if the user enters no key until reaching a predetermined time after the operation mode 320 has been executed.

[171] If the user enters a predetermined key signal in the screen-saving mode 306, the screen-saving mode is automatically terminated, and returns to the operation mode 320.

[172] The function selection mode 340 allows the user to select/establish a variety of functions of the air-conditioner.

[173] The function selection mode 340 includes an operation/additional function 342 and an album function 344, etc.

[174] The operation/additional function 342 enables the user to establish an operation state and additional functions of the air-conditioner. The album function 344 allows the user to store/edit a variety of pictures.

[175] According to the operation function, the user selects state information (e.g., a cooling or dehumidifying function) of the air-conditioner, and can adjust the volume of wind of the air-conditioner.

[176] In the meantime, the pop-up function 360 may be further executed during the above-mentioned individual modes.

[177] The pop-up window 360 loads a variety of pop-up windows on the display window

120, such that the user can visually recognize an error state or input key state of the air- conditioner while the above-mentioned individual modes are executed.

[178] The above-mentioned function selection mode 340 may also be switched to the screen-saving mode 306 according to a user command in the same manner as in the operation mode 320. In other words, if the user enters no execution key until reaching a predetermined time after the function selection mode 340 has been executed, the function selection mode 340 is also switched to the screen-saving mode 306.

[179] A method for executing individual modes having the above-mentioned configuration will hereinafter be described with reference to FIGS. 8-9.

[180] FIGS. 8-9 shows detailed operations of the standby mode 300, the operation mode

320, and the function selection mode 340.

[181] Referring to FIGS. 8-9, the air-conditioner determines whether a power-supply signal is received in the air-conditioner at step S400. If the power-supply signal is received in the air-conditioner, the air-conditioner executes the standby mode 300 at step S410. Otherwise, if the power-supply signal is not received in the air-conditioner, the air-conditioner executes no action.

[182] It is determined whether the operation/stop key 132 is pressed by the user at step

S420. If the user presses the operation/stop key 132 at step S420, a corresponding signal is transmitted to the main controller 200, such that the air-conditioner is operated at step S421. In other words, the main controller 200 operates air-conditioner components (e.g., an indoor-unit motor 216 or an outdoor-unit motor 218), resulting in the implementation of air-conditioning effect of room air at step S421.

[183] Otherwise, if the operation/stop key 132 is not pressed by the user at step S420, it is determined whether the plasma key 137 is pressed at step S430. If the plasma key 137 is pressed by the user at step S430, a corresponding signal is transmitted to the main controller 200, and operates the air-cleaning unit 170, resulting in the implementation of an air-cleaning function at step S432.

[184] It is determined whether the stop key is pressed at step S434 while the air-cleaning function is executed by the air-cleaning unit 170. If the stop key is pressed, a corresponding signal is transmitted to the main controller 200, such that the air-cleaning unit 170 stops operation at step S436. In this case, the stop key indicates the plasma key 137 pressed by the user. In other words, if the user presses the plasma key 137 once, the air-cleaning unit 170 starts operation. Under this condition, if the plasma key 137 is re-pressed by the user, the air-cleaning unit 170 stops operation.

[185] If the air-conditioning function is executed at step 421, the operation mode 320 is executed on the display window 120 at step 440.

[186] If the operation mode is executed at step S440, the main memory 202 (or the display memory 252) sets a time (T) to zero as denoted by "T=O" at step 460. It is determined whether a specific function key (e.g., the left key 138 or the right key 139) is pressed via the button unit 130.

[187] If the function key is pressed at step S462, the function selection mode 340 is executed at step S480. Otherwise, if the function key is not pressed at step S462, it is determined whether the operation/stop key 132 is pressed at step S464. [188] If the operation/stop key 132 is not pressed, the air-conditioner reads the time value stored in the main memory 202 (or the display memory 252) at step S466, such that it determines whether the stored time value T is equal to or higher than the time setup value (e.g., 5 minutes) established by the environment setup process at step S468.

[189] If the time value T is equal to or higher than the time setup value at step S468, the air-conditioner executes the screen-saving mode 306 at step S470. If a specific key is pressed, the screen-saving mode 306 is closed at step S474.

[190] If the function selection mode is executed at step S480, the main memory 202 (or the display memory 252) re-establishes a time. In more detail, the time is set to zero as denoted by "T=O" at step S530. It is determined whether the right key 139 acting as a function close key is pressed via the button unit 130 at step S532.

[191] If the right key 139 acting as the function close key is pressed at step S532, the current mode returns to the operation mode. Otherwise, if the right key 139 is not pressed at step S532, it is determined whether the operation/stop key 132 is pressed at step S534.

[192] If the operation/stop key 132 is not pressed, the air-conditioner reads the time value stored in the main memory 202 (or the display memory 252) at step S536, such that it determines whether the stored time value T is equal to or higher than the time setup value (e.g., 5 minutes) established by the environment setup process at step S538.

[193] If the time value T is equal to or higher than the time setup value at step S538, the air-conditioner executes the screen-saving mode 306 at step S540. If a specific key is pressed, the screen-saving mode 306 is closed at step S544.

[194] It is determined whether the operation/stop key 132 is pressed at steps S464 and

S534. If the operation/stop key 132 is pressed, the main controller 200 stops operation of the air-conditioner, such that the air-conditioning function stops operation at step S550.

[195] If the air-conditioner stops operation, an automatic cleaning function is executed at step S552. Needless to say, the automatic cleaning function can be executed when it is pre-established in the air-conditioner by the user.

[196] Thereafter, it is determined whether a power-off state is established at step S560. If the power-off state is established at step S560, all operations of the display are closed at step S570. Otherwise, if the power-off state is not established at step S560, the current mode returns to the standby mode.

[197] It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Industrial Applicability

[198] The air-conditioner according to the present invention a display for implementing an image or message upon receiving a command from a controller, and a sound output unit, etc.

[199] Therefore, a display window displays states of the air-conditioner and a variety of images (avatars) and sound thereon, such that a user can visually and audibly recognize operation states of the air-conditioner or other information at the same time.

[200] The air-conditioner according to the present invention includes an additional display controller for controlling content data displayed on the display. If there is a need to change content data displayed on the display, the user can easily change the content data by changing a program of the display controller to another program.

Claims

[ 1 ] An air-conditioner comprising : a display for displaying operation states of the air-conditioner using an image or message; and a sound output unit for generating different sounds according to content data displayed on the display.

[2] The air-conditioner according to claim 1, wherein the display is directly controlled by a main controller capable of controlling the air-conditioner.

[3] The air-conditioner according to claim 1, wherein the display is controlled by a display controller which is installed separately from a main controller capable of controlling the air-conditioner, such that air-conditioner's state information received from the main controller is displayed on the display by the display controller.

[4] The air-conditioner according to claim 1, wherein the sound data generated from the sound output unit is indicative of voice, melody, or music data.

[5] The air-conditioner according to claim 1, wherein the sound output unit includes a plurality of buzzers or speakers.

[6] The air-conditioner according to claim 4, wherein the voice, melody, or music data generated from the sound output unit is changed according to a variety of operation states (e.g., heating, cooling, dehumidifying, and humidifying operation states) of the air-conditioner.

[7] An air-conditioner comprising: a main controller for controlling the air-conditioner; a display controller for receiving state information of the air-conditioner from the main controller, and controlling the received state information to be displayed; and a display for displaying image or state information according to a control signal of the display controller.

[8] The air-conditioner according to claim 7, wherein the main controller communicates with the display controller by wire or wirelessly. [9] The air-conditioner according to claim 7, wherein the power is supplied to the display controller according to a control signal of the main controller. [10] The air-conditioner according to claim 7, further comprising: a sound output unit for generating different sounds according to images or messages implemented on the display. [11] The air-conditioner according to claim 10, wherein the sound data generated from the sound output unit is stored in a memory. [12] The air-conditioner according to claim 1 or 7, wherein the display displays a two-dimensional (2D) image or a three-dimensional (3D) image. [13] The air-conditioner according to claim 1 or 7, wherein the display includes: an image display for displaying an image file; and an operation display for displaying operation states of the air-conditioner/ [14] The air-conditioner according to claim 1 or 7, wherein the display includes a memory for storing the displayed image data (or avatar data). [15] The air-conditioner according to claim 1 or 7, wherein the display is comprised of a Liquid Crystal Display (LCD) or an organic EL (Electro-Luminescence).