EP1888973A2

EP1888973A2 - Air-conditioner

Info

Publication number: EP1888973A2
Application number: EP06757681A
Authority: EP
Inventors: Choong Hee Lee; Chang Woong An; Kam Gyu Lee; Chan Gyu Lim; Ju Ho Ock; Sang Bae Park; Ju Young Cha; Jung Min Jo; Dong Jin Kim; Jeong Hwa Yang
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2005-05-11
Filing date: 2006-05-10
Publication date: 2008-02-20
Anticipated expiration: 2026-05-10
Also published as: EP1888973A4; EP1888973B1; WO2006121284A2; WO2006121284A3

Abstract

An air-conditioner for displaying a variety of avatars (i.e., avatar images) is disclosed. The air-conditioner includes: a standby mode performed before an air-conditioning function begins; an operation mode for indicating that the air-conditioning function is in progress; and a function selection mode for allowing a user to select a variety of functions. The air-conditioner can enable the user to easily recognize air-conditioning state information, indoor environment information, and other information, such that the user can effectively employ not only basic functions of the air-conditioner but also other additional functions.

Description

AIR-CONDITIONER

Technical Field

[1] The present invention relates to an air-conditioner, and more particularly to an air- conditioner for displaying a variety of avatars (i.e., avatar images).

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 display 30 displays the direction of the wind and strength/ weakness degrees of the wind as shown in FIG. 1. In addition, the display 30 displays a room temperature and a desired temperature. In other words, 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. Technical Solution

[13] 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.

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

[15] Another object of the present invention devised to solve the problem lies on an air- conditioner for displaying a variety of images (i.e., avatars) according to operation states (i.e., operation modes) of the air-conditioner.

[16] A further object of the present invention devised to solve the problem lies on an air- conditioner equipped with a variety of additional functions.

[17] The object of the present invention can be achieved by providing an air-conditioner comprising: a standby mode performed before an air-conditioning function begins; an operation mode for indicating that the air-conditioning function is in progress; and a function selection mode for allowing a user to select a variety of functions.

[18] Preferably, the air-conditioner further comprises: a mode conversion stage for controlling any one of the standby mode and the operation mode to be displayed.

[19] Preferably, the mode conversion stage is executed between the standby mode and the operation mode which are sequentially performed by a power-on signal and a power-off signal of the air-conditioner.

[20] Preferably, the air-conditioner further comprises: a screen-saving mode for executing a screen-saver program according to a user selection signal.

[21] Preferably, the air-conditioner further comprises: a pop-up function for indicating the occurrence of new information or an input state of a user selection signal. [22] Preferably, the user writes a desired memo, such the content data of the memo is displayed on a screen.

[23] Preferably, the standby mode includes: a screen-off mode for displaying no image on a screen; a clock mode for displaying a current time; a screen-saving mode for executing a screen-saver program; and a user setup mode for displaying an image established by a user.

[24] Preferably, the operation mode includes: a real-operation mode for displaying an actual-object image (i.e., a real photo); a user operation mode for displaying a user- selected image or a user-selected moving image; and a character operation mode for displaying a character.

[25] Preferably, the function selection mode includes: an operation/additional function for establishing an operation state and additional functions of the air-conditioner; an album function for storing/editing a variety of photo-images; and a manual function for displaying a manual in which usages of the air-conditioner or individual additional functions are recorded.

[26] In another aspect of the present invention, there is provided an air-conditioner comprising: a display for displaying an avatar image; and a display controller for controlling the display controller, wherein the display sequentially implements a standby mode for waiting for an input of a power-on signal executing an air- conditioning function and an operation mode for displaying a pre-established image when the air-conditioning function is in progress, and further includes a mode conversion step located between the standby mode and the operation mode so as to display any one of the standby mode and the operation mode according to a power-on signal and a power-off signal.

[27] Preferably, the standby mode includes: a screen-off mode for displaying no image on a screen; a clock mode for displaying a current time; a screen-saving mode for executing a screen-saver program; and a user setup mode for displaying an image established by a user.

[28] Preferably, the operation mode includes: a real-operation mode for displaying an actual-object image (i.e., a real photo); a user operation mode for displaying a user- selected image or a user-selected moving image; and a character operation mode for displaying a character.

[29] In a further aspect of the present invention, there is provided an air-conditioner comprising: a standby mode for waiting for an input of a power-on signal executing an air-conditioning function; an operation mode for displaying a pre-established image when the air-conditioning function is in progress; and a function selection mode for allowing a user to select/establish a variety of functions, wherein the standby mode and the operation mode are sequentially executed, and a mode conversion step is arranged between the standby mode and the operation mode so as to display any one of the standby mode and the operation mode according to a power-on signal and a power-off signal of the air-conditioner.

[30] Preferably, the standby mode includes: a screen-off mode for displaying no image on a screen; a clock mode for displaying a current time; a screen-saving mode for executing a screen-saver program; and a user setup mode for displaying an image established by a user.

[31] Preferably, the operation mode includes: a real-operation mode for displaying an actual-object image (i.e., a real photo); a user operation mode for displaying a user- selected image or a user-selected moving image; and a character operation mode for displaying a character.

[32] Preferably, the function selection mode includes: an operation/additional function for establishing an operation state and additional functions of the air-conditioner; an album function for storing/editing a variety of photo-images; and a manual function for displaying a manual in which usages of the air-conditioner or individual additional functions are recorded.

[33] In a further aspect of the present invention, there is provided an air-conditioner comprising: a standby mode for displaying a standby state before an air-conditioning function begins; an operation mode for indicating that the air-conditioning function is in progress; a function selection mode for allowing a user to select a variety of functions; and a screen-saving mode for executing a screen-saver program on a display capable of executing the standby mode, the operation mode, and the function selection mode.

[34] Preferably, the screen-saving mode is established/executed by a user.

[35] Preferably, the screen-saving mode is established by a screen-saver setup process.

[36] Preferably, the screen-saver setup process includes: an image setup process for selecting an image to be displayed; and a time setup process for selecting a specific time at which the execution of a screen-saver begins.

[37] Preferably, the image setup process selects at least one image from among a plurality of images which have been stored in a memory or downloaded from an external part.

[38] Preferably, the screen-saver setup process includes a "Preview" function for allowing the user to preview an execution state of the established screen-saver.

[39] Preferably, the time setup process establishes a time interval from a start time at which the last external signal (key) is received to an end time at which the screen-saver starts operation.

[40] Preferably, the screen-saving mode is operated when no signal (key) is received from an external part during a predetermined time while the operation mode or the function selection mode is executed, or stops operation when a signal (or key) is received from the external part during the predetermined time.

[41] Preferably, the screen-saving mode continuously displays a single image, displays a plurality of images in the form of a slideshow, sequentially or randomly displaying a plurality of images at intervals of a predetermined time, displays a moving image, or maintains a power-off state of the display such that no data is displayed on the display.

[42] In a further aspect of the present invention, there is provided an air-conditioner comprising: a controller for operating overall operations and individual functions of the air-conditioner; a display for displaying a variety of images according to a command of the controller; and an input unit for receiving an external signal, wherein the display executes a screen-saving mode equipped with a screen-saving function thereon.

[43] Preferably, the input unit is indicative of a button unit via which a user enters a key input signal or a remote-controller for receiving a remote-control signal from a user.

[44] Preferably, if no external signal(key) is received during a predetermined time established by the input unit, the screen-saving mode begins.

[45] Preferably, if the external signal(key) is received via the input unit, the screen- saving mode stops operation.

[46] In a further aspect of the present invention, there is provided an air-conditioner comprising: a controller for operating overall operations and individual functions of the air-conditioner; an input unit for receiving an external signal; a display for displaying a variety of images according to a command of the controller, and implementing a pop-up function displaying state information of the air-conditioner.

[47] Preferably, the pop-up function selectively displays individual pop-up windows on the display, wherein the pop-up windows display operation states of the air-conditioner or signal input states via the input unit.

[48] Preferably, the input unit is indicative of a button unit via which a user enters a key input signal or a remote-controller for receiving a remote-control signal from a user.

[49] Preferably, the pop-up windows includes: an error pop-up window for indicating an erroneous state while the air-conditioner is operated; a wind-direction control pop-up window displayed when a wind-direction control signal for adjusting a wind direction is received; a volume control pop-up window displayed when a signal for adjusting the volume of sound is received; a temperature control pop-up window displayed when a signal for adjusting a desired temperature is received; a wind- volume control pop-up window displayed when a signal for adjusting the volume of wind is received; and a hard-lock pop-up window displayed when a key locking/releasing function is established or a key locking function is displayed.

[50] Preferably, the error pop-up window displays a corresponding indication number corresponding to a predetermined error item when a specific condition matched with the predetermined error item occurs. [51] Preferably, the wind-direction control pop-up window includes: an up/down control pop-up window displayed when a signal for controlling up/down directions of the wind vertically is received; and a left/right control pop-up window displayed when a signal for controlling left/right directions of the wind is received. [52] Preferably, the up/down control pop-up window is displayed when an upper vane contained in the indoor unit to adjust a direction of the air generated from the indoor unit is vertically rotated. [53] Preferably, the left/right control pop-up window is displayed when a lateral vane contained in the indoor unit to adjust a direction of the air generated from the indoor unit is horizontally rotated. [54] Preferably, the pop-up window closes a previous pop-up window when a plurality of signals are repeatedly received, and displays a final pop-up window. [55] Preferably, if the previous pop-up window is the error pop-up window indicating an error state, other pop-up window (i.e., the last pop-up window) is displayed, and then returns to the error pop-up window after the lapse of a predetermined time. [56] In a further aspect of the present invention, provided herein is an air-conditioner comprising: a main body of the air-conditioner; an input unit for allowing a user to enter memo content in a memo- writing mode according to an operation control command of the air-conditioner or a user selection signal; and a display unit for displaying operation states of the air-conditioner, and displaying memo content entered by a user. [57] Preferably, the input unit is a remote-controller which includes at least one button and wirelessly transmits/receives signals to/from the air-conditioner. [58] Preferably, the input unit is a touch-screen which is contained in the display unit and receives a control command or memo from the user brought in contact with the touch-screen. [59] Preferably, the main body of the air-conditioner further includes a sound output unit for outputting different sounds according to operation state or memo content data. [60] Preferably, the display unit includes: a display input unit for receiving the control command or memo from the user; a display for displaying the operation state or memo content of the air-conditioner; and a display controller for communicating with a main microprocessor contained in the main body, and controlling the operation state or memo content to be selectively displayed according to a selected mode. [61] Preferably, the display further includes an avatar image unit for displaying an avatar or moving image stored in a memory. [62] Preferably, the display input unit is configured in the form of a touch-screen via which the user can enter a desired control command or memo, and is integrated with the display as one unit. [63] Preferably, the display controller displays a pop-up window for indicating that a new memo is entered while the air-conditioner is operated. [64] Preferably, the pop-up window is displayed when the movement is detected by a movement sensor contained in the main body. [65] Preferably, the memo content is checked by a first process wherein a password is entered, and a second process wherein corresponding memo content is displayed only when the password is authenticated. [66] Preferably, if the password authentication is completed, a memo deletion process in which the checked memo content can be deleted is executed. [67] Preferably, the display unit recognizes memo content entered by a touch-screen as an image and stores the recognized image, or converts the image indicating the entered memo content into text data and stores the text data. [68] Preferably, the memo- writing mode assigns a password to the memo content, and stores the memo content equipped with the password.

[69] Preferably, the memo- writing mode displays new memo content during a predetermined time.

Advantageous Effects

[70] The air-conditioner according to the present invention can allow a user to easily recognize air-conditioning state information, indoor environment information, and other information, and can also allow the user to use a variety of additional functions as well as the principal functions such as the air-conditioning function.

[71] The air-conditioner according to the present invention allows a display window to selectively display individual display modes according to states of the air-conditioner.

[72] Therefore, the user can feel close to the above-mentioned air-conditioner, and can visually and audibly recognize a current operation state of the air-conditioner or a current indoor air state at the same time.

[73] If the air-conditioner does not receive an external input signal during a predetermined period of time, the display is switched to a screen-saving mode. Therefore, the display is protected from danger and harm, resulting in an increased lifetime of the display and reduction of power consumption.

[74] In addition, the user can freely determine whether to execute the screen-saving mode, and can also determine an execution image, and an execution time, resulting in greater convenience of the user.

[75] Further, the air-conditioner according to the present invention includes a pop-up function for indicating an operation state of the air-conditioner and an external signal input state, such that the user can easily recognize whether an unexpected error occurs in the air-conditioner, and can also recognize the external signal input state using the pop-up function.

[76] The air-conditioner according to the present invention further includes a memorandum function (i.e., a memo function) in the display, such that the user can easily recognize the presence or absence of a new memo message via a pop-up window indicating the presence or absence of memo data.

[77] Moreover, the air-conditioner can allow the user to easily enter/delete/edit the memo data, and the user can establish a desired password required for confirming the memo data, resulting in the implementation of the memo data security. Brief Description of the Drawings

[78] 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.

[79] In the drawings:

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

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

[82] 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;

[83] 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;

[84] FIG. 5 is a block diagram illustrating a control system of the air-conditioner according to the present invention;

[85] FIG. 6 shows a variety of display modes displayed on a display window in accordance with a preferred embodiment of the present invention;

[86] FIG. 7 shows a display state of a clock mode implemented on a display window of the air-conditioner according to the present invention;

[87] FIG. 8 shows a display state of a single still image displayed on a display of the air- conditioner according to the present invention;

[88] FIG. 9 shows a display state of slideshows displayed on a display of the air- conditioner according to the present invention;

[89] FIG. 10 shows a display state of moving-images displayed on a display of the air- conditioner according to the present invention;

[90] FIG. 11 shows an image-setup process of a screen-saving mode displayed on a display of the air-conditioner according to the present invention; [91] FIG. 12 shows operation states illustrating the setup images of FIG. 11 displayed by a preview mode according to the present invention; [92] FIG. 13 shows operation states of a time-setup process of a screen-saving mode displayed on a display of the air-conditioner according to the present invention; [93] FIG. 14 shows operation states of a character operation mode displayed on a display of the air-conditioner according to the present invention; [94] FIG. 15 shows operations of an operation function from among a variety of function selection modes of the air-conditioner according to the present invention; [95] FIG. 16 shows a setup state of an additional function from among a variety of function selection modes of the air-conditioner according to the present invention; [96] FIG. 17 shows a reservation setup state of the air-conditioner according to the present invention; [97] FIG. 18 shows an information- window display state during a reservation setup mode of the air-conditioner according to the present invention; [98] FIG. 19 shows operation states of an album function from among a variety of function selection modes of the air-conditioner according to the present invention; [99] FIG. 20 shows a variety of display menus during an environment setup mode of the air-conditioner according to the present invention; [100] FIG. 21 shows an environment setup execution process of an album function of the air-conditioner according to the present invention;

[101] FIG. 22 shows an error pop-up window displayed on a display window of the air- conditioner in accordance with a preferred embodiment of the present invention; [102] FIG. 23 shows error items and display numbers acquired when an error pop-up window is displayed on a display window of the air-conditioner in accordance with a preferred embodiment of the present invention; [103] FIG. 24 shows an up/down control pop-up window displayed on a display window of the air-conditioner to control a window direction in accordance with a preferred embodiment of the present invention; [104] FIG. 25 shows a left/right control pop-up window displayed on a display window of the air-conditioner to control a window direction in accordance with a preferred embodiment of the present invention; [105] FIG. 26 shows a volume control pop-up window displayed on a display window of the air-conditioner in accordance with a preferred embodiment of the present invention; [106] FIG. 27 shows a temperature control pop-up window displayed on a display window of the air-conditioner in accordance with a preferred embodiment of the present invention; [107] FIG. 28 shows a wind- volume control pop-up window displayed on a display window in accordance with a preferred embodiment of the present invention; [108] FIG. 29 is a block diagram illustrating a remote-controller of the air-conditioner according to the present invention; [109] FIG. 30 shows operation states of a display for displaying a new memo notification state of the air-conditioner according to the present invention; [110] FIG. 31 shows an exemplary screen image for allowing a user to select an additional function to execute a memo function of the air-conditioner according to the present invention; [111] FIG. 32 shows operation states of a memo window displayed when text conversion for entering a new memo message in the air-conditioner is executed according to the present invention; [112] FIG. 33 shows operation states of an image recognition process when a new memo message is received in the air-conditioner according to the present invention; [113] FIG. 34 shows an exemplary image formed when a memo list of the air-conditioner is displayed according to the present invention; [114] FIGS. 35~36 are a flow chart illustrating a method for controlling a display of the air-conditioner according to the present invention; [115] FIG. 37 is a flow chart illustrating a detailed execution process of a standby mode shown in FIG. 35 according to the present invention; [116] FIG. 38 is a flow chart illustrating a detailed execution process of an operation mode shown in FIG. 35 according to the present invention; [117] FIG. 39 is a flow chart illustrating a method for establishing a function selection mode shown in FIG. 36 according to the present invention; [118] FIG. 40 is a flow chart illustrating a detailed setup process of an album function shown in FIG. 39 according to the present invention; [119] FIG. 41 is a flow chart illustrating a method for executing a screen-saving mode of the air-conditioner according to the present invention; and [120] FIG. 42 is a flow chart illustrating a method for executing a memo- writing mode or a memo-check mode of the air-conditioner according to the present invention.

Best Mode for Carrying Out the Invention [121] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. [122] FIG. 2 shows the appearance of an indoor unit of an air-conditioner according to the present invention. [123] 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.

[124] 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.

[125] 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.

[126] 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.

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

[128] 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.

[129] A display unit 150 is located at a back surface of the front panel 110. The display unit 150 includes a display controller for controlling display states of a variety of avatars displayed on the display window 120, etc.

[130] The display unit 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 unit 150 can easily receive external data via the USB memory 160.

[131] 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 unit 150 may download data via the Internet if required.

[132] 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.

[133] 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. [134] 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.

[135] 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 press-button scheme or a touch-screen scheme, etc.

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

[137] 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 has stopped 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 being performed.

[138] 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".

[139] Two temperature keys 134 are located above or below the operation/stop key 132.

[140] 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.

[141] The temperature key 134 is not operated while the air-conditioner has stopped 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).

[142] 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.

[143] 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 has stopped its operation.

[144] 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.

[145] 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.

[146] 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.

[147] 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.

[148] FIG. 5 is a block diagram illustrating a control system of the air-conditioner according to the present invention.

[149] Referring to FIG. 5, the control system includes a main microprocessor 200 and a display controller 250, such that it controls the main microprocessor 200 to communicate with the display controller 250. The above-mentioned control system shown in FIG. 5 is disclosed for only illustrative purposes, and it may not include the display controller if required.

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

[151] In more detail, the main microprocessor 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.

[152] The main microprocessor 200 is connected to a main input unit 210, a sensor unit

212, a receiver 214, an indoor-unit motor 216, an outdoor-unit motor 218, and a compressor 220, etc.

[153] 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 microprocessor 200.

[154] 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 microprocessor 200.

[155] The receiver 214 receives an external signal in the same manner as in the remote- controller receiver 140. A signal received in the receiver 214 is also transmitted to the main microprocessor 200. Needless to say, the receiver 214 may also be designed to receive wireless communication data (or signal) from a computer (or the Internet).

[156] 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 microprocessor 200. For example, if the main input unit 210 transmits an input signal of the operation/stop key 132 to the main microprocessor 200, the main microprocessor 200 operates the indoor-unit motor 216.

[157] The main microprocessor 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.

[158] The compressor 220 and the outdoor-unit motor 218 are operated by the main microprocessor 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 microprocessor 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.

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

[160] As previously stated above, the air-cleaning unit 150 filters impurities from the air to clean the air. The main microprocessor 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.

[161] The main microprocessor 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 microprocessor 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.

[162] A sound output unit 222 outputs sound or audio data, and is composed of a speaker, etc., such that it can output 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. In addition, if a music file is executed, the sound output unit 222 may output music sounds.

[163] The main microprocessor 200 communicates with the display controller 250 contained in the display unit 150. 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 microprocessor 200, and are also transmitted to the display controller 250, such that the display controller 250 forms a display screen image suitable for operating the air-conditioner.

[164] Data received in the display controller 250 via a data input unit 258 may also be transmitted to the main microprocessor 200. A signal received via a display input unit 254 is transmitted to the main microprocessor 200, such that it outputs sound via the sound output unit 222.

[165] 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.

[166] The display memory 252 is contained in the display unit 150, and stores various data (e.g., a photo-avatar or a character-avatar, etc.) for the display unit 150.

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

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

[169] The data input unit 258 receives data (or signals) from an external part via a mobile storage medium such as the USB memory 160. 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.

[170] FIG. 6 shows a variety of display modes displayed on a display window in accordance with a preferred embodiment of the present invention. In more detail, a variety of display modes displayed on the display window 120 by the display controller 250 are exemplarily shown in FIG. 6.

[171] Referring to FIG. 6, 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.

[172] 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.

[173] 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.

[174] 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.

[175] 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.

[176] The clock mode 304 indicates that a current time is displayed on the display window 120 as shown in FIG. 7. 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.

[177] The screen-saving mode 306 executes a predetermined screen-saver program. In more detail, the screen-saving mode 306 indicates that a screen saver is operated, and is indicative of an execution mode of the screen-saver program having a screen-saving function.

[178] The above-mentioned screen-saving mode 306 will hereinafter be described with reference to the annexed drawings.

[179] FIG. 8 shows a display state of a single still image displayed on a display of the air- conditioner according to the present invention. FIG. 9 shows a display state of slideshows displayed on a display of the air-conditioner according to the present invention.

[180] FIG. 10 shows a display state of moving-images displayed on a display of the air- conditioner according to the present invention.

[181] The screen-saving mode 306 indicates that a variety of images are displayed on the display 256.

[182] For example, during the screen-saving mode 306, a single image (e.g., a photo- image or a character (avatar) image) may also be continuously displayed on the display 256. In other words, only a single still image shown in FIG. 8 is displayed on the display 256 during the screen-saving mode 306.

[183] A plurality of images may be displayed on the display 256 in the form of a slideshow. In other words, a plurality of images are sequentially displayed on the display 256, are displayed on the display 256 at random, or are displayed on the display 256 at intervals of a predetermined time, resulting in the implementation of a screen-saving function.

[184] The screen-saving mode 306 displays the moving images on the display 256 to implement a screen-saving function. The screen-saving mode 306 may switch off the screen of the display 256 if required. In more detail, moving images showing the flow of water may also be displayed on the display 256, as shown in FIG. 10.

[185] In the meantime, the user is able to select any one of the still image, the slideshow, the moving images, and the screen-off state for the screen-saving mode 306. When the air-conditioner is manufactured and comes into the market, it is preferable for any one of the still image, the slideshow, the moving images, and the screen-off state to be set by a manufacturer of the air-conditioner.

[186] A method for establishing a screen-saver program by a user to operate the scree n- saving mode 306 is shown in FIGS. 11~13.

[187] FIG. 11 shows an image-setup process of a screen-saving mode displayed on a display of the air-conditioner according to the present invention. FIG. 12 shows operation states illustrating the setup images of FIG. 11 displayed by a preview mode according to the present invention. FIG. 13 shows operation states of a time-setup process of a screen-saving mode displayed on a display of the air-conditioner according to the present invention.

[188] The screen-saving mode 306 is established by a screen-saver setup process. The screen-saver setup process includes an image setup process for selecting a displayed image, and a time setup process for establishing a start time of the screen saver.

[189] The image setup process allows the user to select at least one of several images which are stored in a memory or downloaded from an external part.

[190] In more detail, during the image setup process, the user selects a photo-image stored in the display memory 252 or an image downloaded from the USB memory 160, and sets the selected image to a screen-saving image.

[191] Operations of the above-mentioned image setup process will hereinafter be described with reference to FIGS. 11~12.

[192] The user presses the right key 139 under the condition that the operation mode 320 is executed as shown in FIG. 1 l(a), and selects a specific function "Album". Accordingly, a variety of menus associated with the album function are displayed as shown in FIG. 1 l(b), the user selects an "Album view" menu using left/right shift keys (??) as shown in FIG. l l(c). [193] As a result, the image stored in the display memory 252 or the image downloaded from the USB memory 160 is displayed as shown in FIG. 1 l(d).

[194] If the user presses the left key 138 as shown in FIG. 1 l(e), the list of user- selectable menus is displayed. In this case, the user selects a "Screen-Saver Setup" menu using the up/down movement keys (AT).

[195] Thereafter, if the "Screen-Saver Setup" image is displayed as shown in FIG. 1 l(f), the user selects a desired photo-image using the above-mentioned movement keys (^►AT).

[196] The user selects a "Preview" menu by pressing the left key 138 as shown in FIG.

1 l(g), such that the selected photo-image is set to a screen-saving image.

[197] FIG. 12 shows a slideshow displayed when the user selects the "Preview" function.

If the user selects the "Preview" function in the above-mentioned image setup process, FIG. 12 previews the user-established image used as a screen-saver image.

[198] In other words, as can be seen from FIG. 12, a plurality of different photo-images are displayed in the order of (a) (b) (c) at intervals of a predetermined time. Needless to say, a still image or moving images may also be displayed on the display according to a user command, instead of the above-mentioned slideshow.

[199] FIG. 13 exemplarily shows the time setup process.

[200] As shown in FIG. 13 (a), the user presses an "Environment Setup" menu using the four movement keys (4 ►AT) on the "Album" menu image, such that the "Environment Setup" menu is selected as shown in FIG. 13 (b).

[201] Therefore, the "Environment Setup" image is displayed as shown in FIG. 13 (c), and the user selects the "Screen Saver" menu using the above-mentioned movement keys (A ►AT).

[202] If the "Screen Saver" menu is selected, the "Screen-Saver Setup" image is displayed as shown in FIG. 13 (d). In this case, the "Screen-Saver Setup" menu includes a plurality of sub-menus, i.e., a "Theme Selection" menu for selecting an "Album" function and a "Background" function, a "Size Selection" menu for selecting the size of a screen image, a "Picture-frame selection" menu, and a "Time Setup" menu, etc.

[203] The "Size Selection" menu includes a first menu for increasing the size of a screen image, a second menu for controlling locating the screen image to be located at the center part, and a third menu for cutting the screen image.

[204] The "Picture-Frame Selection" menu can allow the user to select a variety of picture-frames (e.g., a steel frame, a wood frame, and a butterfly-shaped frame, etc.)

[205] The "Time Setup" menu may include a variety of time menus (i.e., an "After 1 minute" menu, an "After 5 minutes" menu, an "After 10 minutes" menu, and an "Unused" menu, etc.). If a predetermined time elapses at the "Time Setup" menu, the "Time Setup" menu is switched to the "Screen Saver" mode. [206] Under the condition that the user selects desired menus from among the above- mentioned menus, the user continuously presses the right key 139 as shown in FIGS. l l(e) and l l(f), such that the "Environment Setup" menu and the "Album" menu are sequentially closed. As a result, the mode of FIG. 1 l(f) returns to the operation mode 320 as shown in FIG. 1 l(g).

[207] In brief, the screen-saver setup process includes a "Preview" function capable of pre-displaying an execution state of an established screen saver. In the time setup process, the user establishes a time interval from a start time at which the last signal (or key) is received from an external part to an end time at which the screen saver operation begins, and establishes the size of a screen image and a location of the screen image, etc.

[208] 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.

[209] 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.

[210] 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.

[211] The real-operation mode 322 displays an actual-object image (or a real photo) pre- stored in the main memory 202 or the display memory 252. The above-mentioned actual-object image may be comprised of a still image or moving images.

[212] 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.

[213] 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.

[214] FIG. 14 shows operation states of the character operation mode 326 displayed on the display of the air-conditioner according to the present invention. As shown in FIG. 14, 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. [215] An information window 328 for indicating states of the air-conditioner and current indoor states is located at a lower part of the display window 120. Therefore, the information window 328 indicates whether an air-cleaning function (i.e., a plasma function) is executed. In this case, the air-cleaning function indicates a room temperature, a desired temperature, and a current operation state (i.e., artificial intelligence) of the air-conditioner.

[216] 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-established in the air-conditioner.

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

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

[219] The standby mode 300 and the operation mode 320 are sequentially implemented on the display 256. In other words, if the air-conditioner is powered on, the operation mode 320 is displayed on the display 256 after the standby mode 300 is terminated. Otherwise, if the air-conditioner is powered off, the standby mode 300 is displayed on the display 256 after the operation mode 320 is terminated.

[220] A mode conversion step 315 is located between the standby mode 300 and the operation mode 320. In more detail, if a power-on signal is received from an external part during the standby mode 300, the mode conversion step 315 controls the operation mode 320 to be displayed. If a power-off signal is received from an external part during the operation mode 320, the mode conversion step 315 controls the standby mode 300 to be displayed.

[221] In other words, the mode conversion step 315 is adapted to determine whether an external input signal is a power-on signal or power-off signal of the air-conditioner. The power-on signal is received in the air-conditioner when the air-conditioner is powered off. The power-off signal is received in the air-conditioner when the air- conditioner is powered on.

[222] For example, if the user presses the operation/stop key 132 to enter a desired command, the air-conditioner must determine whether the desired command is a power-on signal or a power-off signal of the air-conditioner. The operation/stop key 132 acts as a key for powering on/off the air-conditioner.

[223] Therefore, if the operation/stop key is pressed by the user when the air-conditioner is powered off, the mode conversion step 315 recognizes that the above-mentioned key signal is the power-on signal of the air-conditioner, such that the air-conditioner starts operation.

[224] Otherwise, if the operation/stop key is pressed by the user when the air-conditioner is powered on, the mode conversion step 315 recognizes that the above-mentioned key signal is the power-off signal of the air-conditioner, such that the air-conditioner stops operation.

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

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

[227] The operation/additional function 342 allows 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 photo-images.

[228] 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.

[229] Referring to FIG. 15, if the character-operation mode 326 is executed as shown in

FIG. 15(a), the user presses the left key 138, such that a current operation state (i.e., a cooling mode) is displayed.

[230] In this case, in order to change the operation state of the air-conditioner to a dehumidifying mode, the user presses the left key (4) of the volume key 135 as shown in FIG. 15(b). Therefore, the screen on which the user can select a dehumidifying function is displayed as shown in FIG. 15(c). In this case, the user presses the operation/stop key 132, the dehumidifying function is selected (wherein the power- supply key is used as the dehumidifying function selection key).

[231] If the dehumidifying function is selected, the wind- volume selection screen is displayed as shown in FIG. 15(d). If the user presses the operation/stop key 132 at a desired wind- volume, the wind-volume selection is completed. The user presses the right key 139 on the screen image of FIG. 15(e), and executes a "Close" function, such that the operation function selection is completed.

[232] A method for establishing additional functions will hereinafter be described with reference to FIG. 16.

[233] Referring to FIG. 16, the user presses the right key 138 on the screen image of FIG.

16(a) illustrating the character-operation mode 326, such that a current operation state (i.e., a cooling state) is displayed as shown in FIG. 16(b).

[234] In this case, the user presses the right key (►) of the volume key 135 two times, such that a screen image on which the user can establish a desired additional function is displayed as shown in FIG. 16(c). In this case, the user presses the operation/stop key 132 to select an additional function (wherein the power-supply key is used as the additional function selection key).

[235] A variety of menus executed when the additional function is selected by the user are displayed on the FIG. 16(d). In this case, the user establishes individual menus using four movement keys (^ ►AT), and selects desired menus using the operation/stop key 132 (i.e., the "Selection" key). In this case, individual functions are established or cancelled according to a toggle scheme whenever the operation/stop key 132 is pressed by the user.

[236] A variety of function can be established on the screen image of FIG. 16(d). For example, if the users presses a "Manual" icon, the screen image is converted into the manual screen image. In this case, the user may move a desired page to other locations using the movement keys (^■^►). If the user presses the right key 139 (i.e., a "Return" key), a current screen image returns to a previous additional function selection screen image.

[237] If the user presses a power-saving function, the main microprocessor 200 presses the power-saving function command, and determines whether the power-saving function is executed or cancelled, such that the determined result is transmitted to the display controller 250. The display controller 250 receives the determined result, and displays the determined result on the display window.

[238] FIG. 17 shows a reservation setup state of the air-conditioner according to the present invention. Referring to FIG. 17, provided that a reservation state is pre- established at the screen image shown in FIG. 16(d), the "reservation" menu is colored dark blue.

[239] Otherwise, if the reservation state is not established at the screen image shown in

FIG. 16(d), the user sets a reservation time on the screen image of FIG. 17, and presses the operation/stop key 132, such that the reservation time is stored.

[240] The reservation mode is classified into an "On-time reservation" function and an

"OFF-time reservation" function. The above-mentioned reservation functions may be established by the button unit 130 or the remote-controller.

[241] If the reservation function is established, specific icons are displayed on the information window 328 as shown in FIG. 18. In more detail, a small-sized clock icon is displayed on a right upper part of the information window 328. If the clock icon is displayed on the information window 28, this means that the reservation function is in progress. [242] In the meantime, an icon 328b located at the left side of the clock icon 328a indicates whether the outdoor unit is operated or not, such that it is called an outdoor unit operation icon 328b. An icon 328c located at the right side of the clock icon 328a is a plasma indication icon 328c, such that it can indicate that the air-cleaning unit 170 is driven to clean air.

[243] An automatic cleaning function automatically performs a cleaning operation when the air-cleaning unit 170 is powered off. If the automatic cleaning function is selected, an indoor fan (not shown) rotates for 1 minute to dehumidify an indoor heat-exchange (not shown).

[244] Besides, a "wind-direction up/down movement" function, a "wind-direction right/ left movement" function, a "turbo-Z" function, and a "password setting" function, etc., are further contained in the air-conditioner. If the above-mentioned functions are established in the air-conditioner, a corresponding signal is transmitted to the main microprocessor 200, and is processed by the main microprocessor 200. The display 256 displays the corresponding signal on the display window 120 according to the resultant value processed by the main microprocessor 200.

[245] FIG. 19 shows operation states of the album function 344 from among a variety of function selection modes 340 of the air-conditioner according to the present invention. In more detail, FIG. 19 shows an exemplary case in which the album function 344 is selected from among the function selection mode 340.

[246] Referring to FIG. 19, if the user presses the right key 139 in the function selection mode 340, the album function is selected, such that the screen image of FIG. 19(b) is displayed. In this case, the user selects a desired menu using the above-mentioned movement keys (^ ►AT), and sets the selected menu by pressing the operation/stop key 132.

[247] In this case, if an "Album View" menu is selected by the user, the screen image of

FIG. 19(c) is displayed. Therefore, a photo-image stored in the display memory 252 or the USB memory 160 is displayed. In this case, if the user presses the left key 138, the list of a plurality of menus is displayed as shown in FIG. 19(d).

[248] The above-mentioned menus are comprised of a "Photo Retrieve" menu, a "Photo

Rotate" menu, a "Screen-Saver Setup" menu, a "Selective Deletion", and a "Total Deletion" menu.

[249] The "Photo Retrieve" menu is adapted to download a desired photo from an external storage unit such as the USB memory 160, etc. The "Photo Rotate" menu is adapted to rotate a selected photo by a predetermined angle. The rotated photo may also be stored in the storage unit if required.

[250] The "Screen-Saver Setup" menu is adapted to select a desired photo-image from among a plurality of photo-images, and uses the selected photo-image as a screen- saving image. [251] The "Total Deletion" menu and the "Selective Deletion" menu are adapted to delete a desired photo-image from the stored photo-images. If the "Total Deletion" is selected, all the stored photo-images are deleted at a time. If the "Selective Deletion" is selected, some of the stored photo-images can be selectively deleted. [252] FIG. 20 shows a variety of display menus during an environment setup mode of the air-conditioner according to the present invention. [253] Referring to FIG. 20, the environment setup menu is designed to be selected by the screen image of the album function 344. [254] Referring to FIG. 21(a), the user presses the right key 139 in the function selection mode 340, selects the album function 344, and selects the "Environment Setup" menu using the movement keys (^•^►X such that individual menus for the environment setup process are displayed. [255] As shown in FIG. 20, the above-mentioned "Environment Setup" menu largely includes a screen saver mode, an operation mode, a date/time setup mode, an alarm setup mode, a stop mode setup, a sound effect setup/brightness setup menu, etc. [256] The "Screen-Saver" menu includes a plurality of sub-menus, i.e., a "Theme

Selection" menu for selecting an "Album" function and a "Background" function, a

"Size Selection" menu for selecting the size of a screen image, a "Picture-frame selection" menu, and a "Time Setup" menu, etc. [257] The "Size Selection" menu includes a first menu for increasing the size of a screen image, a second menu for controlling locating the screen image to be located at the center part, and a third menu for cutting the screen image. [258] The "Picture-Frame Selection" menu can allow the user to select a variety of picture-frames (e.g., a steel frame, a wood frame, and a butterfly-shaped frame, etc.) [259] The "Time Setup" menu may include a variety of time menus (i.e., an "After 1 minute" menu, an "After 5 minutes" menu, an "After 10 minutes" menu, and an

"Unused" menu, etc.). If a predetermined time elapses at the "Time Setup" menu, the

"Time Setup" menu is switched to the "Screen Saver" mode. [260] The operation mode includes a plurality of sub-menus, i.e., a "Theme Selection" menu, a "Background Music Setup" menu, and a "Temperature Indication Selection", etc. [261] The "Theme Selection" menu allows the user to select one of a Character" menu and a "Background" menu as a theme. Needless to say, the theme selection menu allows the user to select a variety of images (e.g., user's photo-images, etc.) other than the "Character" and "Background" menu images as such the theme. [262] The "Background Music Setup" menu allows the user to select on/off states of the background music, and also allows the user to adjust the volume of background sound. [263] The "Temperature Indication Selection" menu includes a plurality of sub-menus, i.e., a "Normal" menu and a "Funny" menu, etc. The "Normal" menu indicates a temperature using a general indication method. The "Funny" menu funnily indicates a temperature by changing a character font to another font.

[264] The "Date/time setup" menu allows the user to select a desired date (date, month, and year), a desired time (A.M/P.M, hour, and minute). If the user presses the right key 139 in the "Date/time setup" menu, a close function of the Date/time setup menu is executed, such that a user-setup value is stored and the "Date/time setup" menu returns to a previous menu.

[265] The "Alarm Setup" menu includes a plurality of sub-menus, i.e., an "Alarm on/off time" menu, an "Alarm time" menu, a "Duration time" menu, a "Repetition time" menu, and a "Sound setup" menu.

[266] The "Alarm Time" menu allows the user to a desired time in the form of A.M/P.M-, hour-, and minute- data. The "Duration time" menu allows the user to select one of 30 seconds, 1 minute, and 3 minutes, etc. The "Repetition time" menu selects one of "Monday to Friday", "Monday to Saturday", and "every day", etc. The "Sound setup" menu allows the user to select a desired one from among a variety of bell sounds (ringtones).

[267] The "Stop mode Setup" menu is adapted to establish an image displayed on the display window 120 when the air-conditioner stops operation, and is indicative of a screen setup process in the standby mode 300.

[268] The above-mentioned "Stop mode Setup" menu includes a "stop mode on/off" menu, an "indication element selection" menu, and a "background image selection" menu. Therefore, if the user sets the stop mode to an OFF state, the screen image of the display window 120 is switched off during the standby mode 330.

[269] The "indication element selection" menu allows the user to select a time, a temperature/humidity, and a calendar, etc. If the user selects one of the time, the temperature/humidity, and the calendar, the selected data is displayed on the display window 120 during the standby mode 300. In other words, if the user selects the time, a current time is displayed on the display window 120 during the standby mode 300.

[270] The "background image selection" menu allows the user to determine which one of background images will be displayed on the display window 120 during the standby mode 300. A variety of images may be additionally applied to the "Background image selection" menu.

[271] The "sound effect setup/brightness setup" menu includes a variety of sub-menus associated with the sound effect, for example, a "On/Off" menu, a "volume control" menu, a "sound setup" menu, and a "brightness setup" menu, etc.

[272] If the "On/Off" menu of the sound effect is set to an "Off" menu, the volume control menu and the sound setup menu are disabled. In more detail, if the sound effect is switched off, there is no need to set the volume of sound or the type of sound, such that the volume control menu and the sound setup menu are disabled.

[273] The "sound setup" menu is adapted to set a variety of sound types. Preferably, the sound setup menu may be designed to further include a user-desired sound effect.

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

[275] The pop-up function indicates the occurrence of new information or the input state of new data. The pop-up function displays an additional pop-up window on the display window 120, such that it displays an operation state of the air-conditioner or signal input state from an input unit on the pop-up window.

[276] 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.

[277] In this case, the input unit for allowing the user to enter a variety of signals corresponds to the button unit 130 pressed by the user or the remote-controller receiver 140 for receiving a remote-controller signal.

[278] The above-mentioned pop-up window is displayed separately from the above- mentioned individual modes. In other words, the above-mentioned pop-up window overlaps with the display window 120 displayed at the above-mentioned modes.

[279] A variety of pop-up windows will hereinafter be described with reference to FIGS.

22 to 28.

[280] FIG. 22 shows an error pop-up window displayed on a display window of the air- conditioner in accordance with a preferred embodiment of the present invention. An error message is displayed on the display window as shown in FIG. 22. In more detail, if the main microprocessor 200 transmits an error signal to the display controller 250, the display window 120 displays the error pop-up window 362 as shown in FIG. 22.

[281] The error pop-up window 362 displays an indication number corresponding to an error item table shown in FIG. 23. In more detail, if a current operation state of the air- conditioner corresponds to a specific condition matched with a predetermined error item, the error pop-up window 362 displays an indication number corresponding to the aforementioned erroneous item. Therefore, FIG. 22 shows an exemplary display window indicating that the erroneous item corresponding to the indication number "56" has occurred.

[282] Preferably, the error pop-up window 362 should be displayed on the display window only during the operation mode 320 or the standby mode 300. The error popup window 362 instantaneously disappears from the display window while other popup windows are loaded. [283] FIG. 24 shows an up/down control pop-up window displayed on the display window of the air-conditioner to control a window direction in accordance with a preferred embodiment of the present invention. FIG. 25 shows a left/right control popup window displayed on the display window of the air-conditioner to control a window direction in accordance with a preferred embodiment of the present invention. Upon receiving a wind-direction control signal from the controller 200, the wind-direction control pop-up windows 364 and 364' are shown in FIGS. 24-25. The wind-direction control pop-up windows 364 and 364' are adapted to control the direction of the wind generated from the indoor unit 100. If a specific condition wherein other pop-up windows are loaded is provided, the above-mentioned wind-direction control pop-up windows 364 and 364' immediately disappear.

[284] In more detail, the wind-control pop-up windows 364 and 364' are classified into the up/down control pop-up window 364 and the left/right control pop-up window 364'.

[285] The up/down control pop-up window 364 is displayed when a signal for vertically rotating an upper vane 102 is received from the input unit. In more detail, in the case where the upper vane 102 is vertically rotated by a key signal received from the button unit 130 or the remote-controller so as to control an up/down direction of the wind generated from the indoor unit 100, the up/down control pop-up window 364 indicates the above-mentioned operation state of the upper vane 102.

[286] The left/right control pop-up window 364' is displayed when a signal for horizontally rotating a lateral vane 104 is received from the input unit. In more detail, in the case where the lateral vane 104 is horizontally rotated by a key signal received from the button unit 130 or the remote-controller so as to control a left/right direction of the wind generated from the indoor unit 100, the left/right control pop-up window 364' indicates the above-mentioned operation state of the lateral vane 104.

[287] FIG. 26 shows a volume control pop-up window 366 displayed on a display window of the air-conditioner in accordance with a preferred embodiment of the present invention. Referring to FIG. 26, the volume control pop-up window 366 is displayed when a signal for adjusting the volume of sound transmitted from the air- conditioner to an external part.

[288] In more detail, in the case where the user adjusts the volume of sound generated from the sound output unit 222 using either the button unit 130 or the remote- controller, the volume control pop-up window 366 displays the aforementioned volume control state of the user.

[289] Similar to the above-mentioned wind-direction pop-up windows 364 and 364', the volume control pop-up window 366 instantaneously disappears from the display window when other pop-up windows can be loaded. Preferably, the volume control pop-up window 366 should be controlled to be displayed only under the operation mode 320 or the environment setup mode.

[290] FIG. 27 shows a temperature control pop-up window 368 displayed on a display window of the air-conditioner in accordance with a preferred embodiment of the present invention. The temperature control pop-up window 368 is displayed when a signal for adjusting a desired temperature is received from the input unit.

[291] If the signal for adjusting a desired temperature is received from the input unit, the controller 200 displays setup temperature data stored in the main memory 202 on the display window 120.

[292] Preferably, the temperature control pop-up window 368 may disappear after the lapse of 5 seconds according to a temperature control pop-up signal.

[293] The temperature control pop-up window 368 instantaneously disappears from the display window in the same manner as in the wind-direction control pop-up windows 364 and 364' and the volume control pop-up window 366.

[294] The error pop-up window 362 instantaneously disappears from the display window while other pop-up windows are loaded.

[295] FIG. 28 shows a wind-volume control pop-up window displayed on a display window in accordance with a preferred embodiment of the present invention.

[296] The wind-volume control pop-up window is displayed when a signal for adjusting the volume of wind generated from the indoor unit 100 is received from the input unit. In more detail, when the volume of wind generated from the indoor unit 100 is adjusted by a key signal generated from the button unit 130 or the remote-controller, the wind-volume control pop-up window displays the above-mentioned wind-volume control states. Preferably, the wind- volume control pop-up window 370 may disappear after the lapse of a predetermined time (e.g., 5 seconds) according to a wind-volume control signal.

[297] A hard-lock pop-up window (not shown) may be further displayed on the display window. The hard-lock pop-up window displays operations executed when a signal for locking/releasing a key is received. Preferably, the key locking/releasing functions associated with the hard- lock pop-up window may be set by an external device.

[298] In more detail, if the key locking function is established, it is impossible for the air- conditioner to receive a signal from the button unit 130 or the remote-controller. If a signal is received from the button unit 130 or the remote-controller on the condition that the above-mentioned key locking function has been established, the hard- lock popup window is displayed for a predetermined time (e.g., 5 seconds), such that it indicates that a current state is a key locking state.

[299] A variety of pop-up windows other than the above-mentioned pop-up windows can be implemented if required. For example, an address pop-up window (not shown) for indicating a storage location of a control command may be further displayed on the display window if required.

[300] If a variety of signals are repeatedly received in the above-mentioned pop-up windows, a previous pop-up window is closed, and the last pop-up window is displayed. As stated above, under the condition in which the error pop-up window can be displayed, other pop-up window is displayed, and returns to the error pop-up window after the lapse of 5 seconds.

[301] FIGS. 29~34 show the memo function of the air-conditioner according to the present invention.

[302] The display controller 250 of the air-conditioner displays a pop-up window indicating that a new memo is received during the operation time of the air- conditioner.

[303] The display controller 250 recognizes memo content data received via the touchscreen as an image, and outputs the recognize image on the display 256. Otherwise, the display controller 250 converts the recognize image into text data, and displays the text data on the display 256.

[304] The memo may be entered by the user via a remote-controller shown in FIG. 29.

The display input unit 254 may be integrated with the display 256 configured in the form of a touch-screen via which the user can enter a control command or a desired memo.

[305] The remote-controller shown in FIG. 29 includes an input unit 274 including at least one button via which the user can enter a control command of the air-conditioner; a controller 270 for generating a control command signal according to a key entry signal generated by the pressed button, and controlling transmission of the control command signal; and a transmitter 272 for wirelessly transmitting/receiving signals to/ from a main body of the air-conditioner according to a control signal of the controller 270.

[306] The display of the air-conditioner displays a pop-up window indicating the presence of a new memo when the air-conditioner is operated. The display of the air-conditioner always displays other pop-up window indicating the presence of a memo although the air-conditioner is not operated.

[307] FIG. 30 shows operation states of a display for displaying a new memo notification state of the air-conditioner according to the present invention.

[308] As can be seen from FIG. 31, if the air-conditioner enters a memo-composition mode acting as one of additional functions according to a user command received via the touch-screen of the display of the air-conditioner, the memo window is displayed on the display as shown in FIG. 32, such that the user directly writes characters (or letters) using his or her pen. [309] The character data entered by the user is converted into text data by an additional character recognition program, such that the text data is stored.

[310] As shown in FIG. 33, the above-mentioned characters may be edited or may be stored in the memory contained in the display without any change.

[311] The stored characters are displayed on the display as shown in FIG. 34, such that memo input date/time information is listed on the display.

[312] Therefore, the user can recognize content data of the memo displayed on the display.

[313] If the movement is detected by the movement sensor contained in the main body after the memo has been stored, the display of the air-conditioner informs the user of the memo via sound data or a pop-up window. If the presence invention of memo data is determined, the display displays the memo on the pop-up window although the air- conditioner is in the operation mode or the standby mode.

[314] Detailed control contents of the above-mentioned memo function will hereinafter be described.

[315] A method for executing the above-mentioned individual modes will hereinafter be described with reference to FIGS. 35~42.

[316] FIGS. 35~36 shows detailed operations of the standby mode 300, the operation mode 320, and the function selection mode 340. FIG. 37 is a flow chart illustrating detailed operations of the standby mode 300 of FIG. 35 according to the present invention.

[317] FIG. 38 is a flow chart illustrating detailed operations of the operation mode 320 of

FIG. 35 according to the present invention. FIGS. 39~40 are flow charts illustrating operations of the function selection mode of FIG. 36 according to the present invention.

[318] Referring to FIGS. 35~36, the display controller 250 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 display controller 250 executes no action.

[319] A method for executing the standby mode is shown in FIG. 37. Referring to FIG.

37, the display controller 250 reads a predetermined setup value at step S411. Therefore, it is determined whether the read setup value is set to a clock image at step S412.

[320] If it is determined that the setup value corresponds to the clock image, the display controller 250 displays the clock screen on the display window 120 at step S413. Otherwise, it is determined that the setup value is set to the screen-saving image, the display controller executes the screen-saving mode. Otherwise, if it is determined that the setup value is not set to the screen saving image, the display controller turns off the screen at step S416.

[321] Referring back to FIG. 35, 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 microcomputer 200, such that the air-conditioner is operated at step S421. In other words, the main microprocessor 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.

[322] 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 microprocessor 200, and operates the air-cleaning unit 170, resulting in the implementation of an air-cleaning function at step S432.

[323] 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 microprocessor 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.

[324] If the air-conditioning function is executed at step 421, the operation mode 320 is executed on the display window 120 at step 440. A detailed operation of the operation mode 320 is shown in FIG. 38.

[325] The main microprocessor 200 reads sensor values (e.g., temperature) from the sensor unit 212 at step S442, and reads setup values for the execution of the operation mode 320 at step S444.

[326] If the read setup value indicates the user operation mode at step S450, the main microprocessor 200 reads data entered by the user at step S452, and displays the read data on the display window 120 at step S454.

[327] If the read setup value indicates the real-operation mode at step S460, the main microprocessor 200 reads real- photo data having been pre-stored at step S462, and displays the real-photo data on the display 120 at step S454.

[328] If the read setup value does not indicate the user operation mode and the real operation mode, the main microprocessor reads pre-stored character data at step S464, and displays the read character data on the display window 120 of the display unit 150.

[329] Referring back to FIG. 35, if the operation mode is executed at step S440, the display memory 252 (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.

[330] 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.

[331] If the operation/stop key 132 is not pressed, the air-conditioner reads the time value stored in 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.

[332] 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.

[333] FIG. 39 is a flow chart illustrating a method for executing the function selection mode according to the present invention.

[334] Referring to FIG. 39, the display controller 250 determines whether a key entry value indicates an additional operation function at step S481. If the additional operation function is determined, the display controller determines whether the user selects the cooling mode at step S482. In this case, if it is determined that the user has selected the cooling mode at step S482, the display controller 250 determines whether the volume of wind is set to a weak mode at step S483. If the volume of wind is set to the weak mode at step S483, the cooling mode is executed at the weak mode (i.e., the weak-cooling mode) at step S484.

[335] The display controller 250 displays a specific image (or avatar) associated with the weak-cooling mode on the display window 120, and the main microprocessor 200 controls the sound output unit 222 to output sound or music data associated with the weak-cooling mode at step S484'.

[336] If the volume of wind is not set to the weak mode, the display controller 250 determines whether the volume of wind is set to a strong mode at step 485. If the volume of wind is set to the strong mode, the display controller 250 performs a power- cooling mode at step S487.

[337] In this case, the display controller 250 displays individual images (or avatars) associated with the strong-cooling mode and the power-cooling mode on the display window 120, respectively. The main microprocessor 200 controls the sound output unit 222 to output sound or music data associated with the strong-cooling mode at step 486', and controls the sound output unit 222 to output sound or music data associated with the power-cooling mode at step S487'.

[338] In the meantime, if the cooling mode is not selected at step S482, a dehumidifying mode is executed. In this case, the display controller 250 determines whether the volume of wind is set to a weak mode at step S490. If the volume of wind is set to the weak mode at step S490, the dehumidifying mode is executed at the weak mode (i.e., the weak-dehumidifying mode) at step S491. If the volume of wind is set to a strong mode at step S492, the dehumidifying mode is executed at the strong mode (i.e., the strong-dehumidifying mode) at step S493. If the volume of wind does not indicate the weak mode or the strong mode, a power-dehumidifying mode is executed at step S494.

[339] As stated above, if the weak-dehumidifying mode is executed at step S491, the display controller 250 displays a specific image (or avatar) associated with the weak- dehumidifying mode on the display window 120. The main microprocessor 200 controls the sound output unit 222 to output sound or music data associated with the weak-dehumidifying mode at step 491'.

[340] In this way, if the strong-dehumidifying mode is executed at step S493, the display controller 250 displays a specific image (or avatar) associated with the strong- dehumidifying mode, and outputs specific sound data associated with the same via the sound output unit 222 at step S493'. If the power-dehumidifying mode is executed at step S494, the display controller 250 displays a specific image (or avatar) associated with the power-dehumidifying mode, and outputs specific sound data associated with the same via the sound output unit 222 at step S494'.

[341] If the key entry value does not indicate the additional operation function at step

S481, the album function is executed at step S500.

[342] FIG. 40 is a flow chart illustrating a detailed setup process of the album function according to the present invention.

[343] Referring to FIG. 40, it is determined whether the key entry value indicates a download mode at step S502. If the key entry value indicates the download mode at step S502, photo-images are downloaded from the USB memory 160 at step S504.

[344] Otherwise, if the key entry value does not indicate the download mode, it is determined whether the key entry value indicates the album view function at step S510. If the key entry value indicates the album view function, the album view function is executed at step s512. If the key entry value does not indicate the album view function, the environment setup function is executed at step S520.

[345] The aforementioned album view function and the aforementioned environment setup function have already been disclosed with reference to FIGS. 19~21.

[346] Referring back to FIG. 36, if the function selection mode is executed at step S480, 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.

[347] 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.

[348] If the operation/stop key 132 is not pressed, the air-conditioner reads the time value stored in 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.

[349] 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.

[350] 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 microcomputer 200 stops operation of the air-conditioner, such that the air-conditioning function stops operation at step S550.

[351] 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.

[352] 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.

[353] The screen-saving mode 306 will hereinafter be described with reference to FIG.

41.

[354] FIG. 41 is a flow chart illustrating a method for executing the screen-saving mode

306 of the air-conditioner according to the present invention.

[355] Referring to FIG. 41, the air-conditioner re-establishes an elapse time T at step

S600, and determines whether there is an external key input signal at step S610.

[356] If the external key input signal exists at step S610, a current operation state of the air-conditioner returns to the T-value setting step S600. Otherwise, if there is no external key input signal at step S610, the air-conditioner reads the elapse time value (T) and a predetermined setup time value (T') at step 620.

[357] In more detail, the air-conditioner reads the re-established elapse time (T), and reads a user-established setup time or a setup time for the beginning of the screen- saving 306.

[358] The air-conditioner compares the T value with the T' value, and determines whether the T value is higher than the T' value at step S630. If the T value is higher than the T' value at step S630, the screen-saving mode 306 is executed at step S640. If the T value is equal to or less than the T' value at step S630, a current operation returns to step S610. [359] If the screen-saving mode 306 is executed, the air-conditioner continuously determines the presence or absence of an external key input signal at step S650. If the presence of the external key input signal is determined, the screen-saving mode 306 is terminated at step S660.

[360] Operations of the air-conditioner including the memo function will hereinafter be described with reference to FIG. 42.

[361] FIG. 42 is a flow chart illustrating a method for executing a memo- writing mode or a memo-check mode of the air-conditioner according to the present invention.

[362] Referring to FIG. 42, the operation of the air-conditioner includes a first step in which a memo-mode button is pressed, a second step in which a memo is written and stored in the memo mode, and a third step in which a pop-up window indicating the stored memo contents.

[363] If the user contacts the memo-mode button contained in a touch-pad of the display of the air-conditioner at step S700, the air-conditioner detects the beginning of the memo mode.

[364] If the air-conditioner enters the memo mode, it determines whether a current mode is a memo- writing mode A or a memo-check mode B at step S701.

[365] If the current mode is the memo- writing mode A, memo data is constructed by the user at step S702. The air-conditioner recognizes the importance of corresponding memo data, and determines whether a password is to be established at step S703.

[366] If the user decides to establish the password setup, the air-conditioner allows the user to enter a desired password at step S704, and converts the entry password into a text signal, such that the text signal is stored at step at step S705. Needless to say, the user-entry password may be configured in the form of an image, such that the image may also be stored without any change.

[367] In order to establish the password in the memo by the user, store the established password, and display the stored memory data, the air-conditioner forms a specific pop-up window on the operation state indication window during a predetermined period of time, such that it informs the user of the presence of stored memo data at step S706.

[368] In this case, the user may also recognize the presence of memo data via the speaker sound of the display if required.

[369] If the user's movement is detected by the movement sensor contained in the air- conditioner, the air-conditioner informs the user of the presence of memo data via the pop-up window or sound.

[370] If the air-conditioner enters the memo-check mode for checking the stored memo data, it can recognize memo data written by the user or basic information pre- established by a system manufacturer. [371] The memo-check mode determines whether the password has been established to guarantee the security of the user memo data at step S707. The user enters the password at step S708, and confirms the entered password at step S709. In this case, the memo content displayed at step S709 may also be deleted at step S710 as necessary.

[372] The above-mentioned password setup function guarantees the security of memo data, effectively employs the display, and informs a user's family of user-desired information via the memo data.

[373] Needless to say, the air-conditioner according to the present invention can implement a variety of photo-images or avatars on the display window according to a variety of methods other than the above-mentioned methods disclosed in the present invention. The avatar may have different facial expressions and different sounds according to room air states or air-conditioner states as necessary.

[374] For example, if the air-conditioner is powered on, a smiling avatar appears and says

"Hello" to the user. If the air-conditioner is powered off, the avatar says "Good Bye" to the user and disappears from the display. The air-conditioner displays the avatar on the display, and allows the user to audibly both recognize current operation state information of the air-conditioner and room-air state information. In addition, the user's voice signal may be recorded in a storage unit by the user's request if required, such that the recorded voice signal may also be used as a voice message of the air- conditioner.

[375] 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 covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Industrial Applicability

[376] The air-conditioner according to the present invention can enable the user to easily recognize air-conditioning state information, indoor environment information, and other information, such that the user can effectively employ not only basic functions of the air-conditioner but also other additional functions.

Claims

[ 1 ] An air-conditioner comprising : a standby mode performed before an air-conditioning function begins; an operation mode for indicating that the air-conditioning function is in progress; and a function selection mode for allowing a user to select a variety of functions.

[2] The air-conditioner according to claim 1, further comprising: a mode conversion stage for controlling any one of the standby mode and the operation mode to be displayed.

[3] The air-conditioner according to claim 2, wherein the mode conversion stage is executed between the standby mode and the operation mode which are sequentially performed by a power-on signal and a power-off signal of the air- conditioner.

[4] The air-conditioner according to claim 1, further comprising: a screen-saving mode for executing a screen-saver program according to a user selection signal.

[5] The air-conditioner according to claim 1, further comprising: a pop-up function for indicating the occurrence of new information or an input state of a user selection signal.

[6] The air-conditioner according to claim 1, wherein the user writes a desired memo, such the content data of the memo is displayed on a screen.

[7] The air-conditioner according to claim 1, wherein the standby mode includes: a screen-off mode for displaying no image on a screen; a clock mode for displaying a current time; a screen-saving mode for executing a screen-saver program; and a user setup mode for displaying an image established by a user.

[8] The air-conditioner according to claim 1, wherein the operation mode includes: a real-operation mode for displaying an actual-object image (i.e., a real photo); a user operation mode for displaying a user-selected image or a user-selected moving image; and a character operation mode for displaying a character.

[9] The air-conditioner according to claim 1, wherein the function selection mode includes: an operation/additional function for establishing an operation state and additional functions of the air-conditioner; an album function for storing/editing a variety of photo-images; and a manual function for displaying a manual in which usages of the air-conditioner or individual additional functions are recorded.

[10] An air-conditioner comprising : a display for displaying an avatar image; and a display controller for controlling the display controller, wherein the display sequentially implements a standby mode for waiting for an input of a power-on signal executing an air-conditioning function and an operation mode for displaying a pre-established image when the air-conditioning function is in progress, and further includes a mode conversion step located between the standby mode and the operation mode so as to display any one of the standby mode and the operation mode according to a power-on signal and a power-off signal.

[11] The air-conditioner according to claim 10, wherein the standby mode includes: a screen-off mode for displaying no image on a screen; a clock mode for displaying a current time; a screen-saving mode for executing a screen-saver program; and a user setup mode for displaying an image established by a user.

[12] The air-conditioner according to claim 10, wherein the operation mode includes: a real-operation mode for displaying an actual-object image (i.e., a real photo); a user operation mode for displaying a user-selected image or a user-selected moving image; and a character operation mode for displaying a character.

[13] An air-conditioner comprising : a standby mode for waiting for an input of a power-on signal executing an air- conditioning function; an operation mode for displaying a pre-established image when the air- conditioning function is in progress; and a function selection mode for allowing a user to select/establish a variety of functions, wherein the standby mode and the operation mode are sequentially executed, and a mode conversion step is arranged between the standby mode and the operation mode so as to display any one of the standby mode and the operation mode according to a power-on signal and a power-off signal of the air-conditioner.

[14] The air-conditioner according to claim 13, wherein the standby mode includes: a screen-off mode for displaying no image on a screen; a clock mode for displaying a current time; a screen-saving mode for executing a screen-saver program; and a user setup mode for displaying an image established by a user.

[15] The air-conditioner according to claim 13, wherein the operation mode includes: a real-operation mode for displaying an actual-object image (i.e., a real photo); a user operation mode for displaying a user-selected image or a user-selected moving image; and a character operation mode for displaying a character.

[16] The air-conditioner according to claim 13, wherein the function selection mode includes: an operation/additional function for establishing an operation state and additional functions of the air-conditioner; an album function for storing/editing a variety of photo-images; and a manual function for displaying a manual in which usages of the air-conditioner or individual additional functions are recorded.

[17] An air-conditioner comprising : a standby mode for displaying a standby state before an air-conditioning function begins; an operation mode for indicating that the air-conditioning function is in progress; a function selection mode for allowing a user to select a variety of functions; and a screen-saving mode for executing a screen-saver program on a display capable of executing the standby mode, the operation mode, and the function selection mode.

[18] The air-conditioner according to claim 17, wherein the screen-saving mode is established/executed by a user.

[19] The air-conditioner according to claim 17, wherein the screen-saving mode is established by a screen-saver setup process.

[20] The air-conditioner according to claim 19, wherein the screen-saver setup process includes: an image setup process for selecting an image to be displayed; and a time setup process for selecting a specific time at which the execution of a screen-saver begins.

[21] The air-conditioner according to claim 20, wherein the image setup process selects at least one image from among a plurality of images which have been stored in a memory or downloaded from an external part.

[22] The air-conditioner according to claim 19, wherein the screen-saver setup process includes a "Preview" function for allowing the user to preview an execution state of the established screen-saver.

[23] The air-conditioner according to claim 20, wherein the time setup process establishes a time interval from a start time at which the last external signal (key) is received to an end time at which the screen-saver starts operation.

[24] The air-conditioner according to claim 17, wherein: the screen-saving mode is operated when no signal (key) is received from an external part during a predetermined time while the operation mode or the function selection mode is executed, or stops operation when a signal (or key) is received from the external part during the predetermined time.

[25] The air-conditioner according to claim 17, wherein the screen-saving mode continuously displays a single image, displays a plurality of images in the form of a slideshow, sequentially or randomly displaying a plurality of images at intervals of a predetermined time, displays a moving image, or maintains a power-off state of the display such that no data is displayed on the display.

[26] An air-conditioner comprising: a controller for operating overall operations and individual functions of the air- conditioner; a display for displaying a variety of images according to a command of the controller; and an input unit for receiving an external signal, wherein the display executes a screen-saving mode equipped with a screen- saving function thereon.

[27] The air-conditioner according to claim 26, wherein the input unit is indicative of a button unit via which a user enters a key input signal or a remote-controller for receiving a remote-control signal from a user.

[28] The air-conditioner according to claim 27, wherein: if no external signal(key) is received during a predetermined time established by the input unit, the screen-saving mode begins.

[29] The air-conditioner according to claim 27, wherein: if the external signal(key) is received via the input unit, the screen-saving mode stops operation.

[30] An air-conditioner comprising: a controller for operating overall operations and individual functions of the air- conditioner; an input unit for receiving an external signal; a display for displaying a variety of images according to a command of the controller, and implementing a pop-up function displaying state information of the air-conditioner.

[31] The air-conditioner according to claim 30, wherein the pop-up function selectively displays individual pop-up windows on the display, wherein the pop-up windows display operation states of the air-conditioner or signal input states via the input unit.

[32] The air-conditioner according to claim 31, wherein the input unit is indicative of a button unit via which a user enters a key input signal or a remote-controller for receiving a remote-control signal from a user.

[33] The air-conditioner according to claim 31, wherein the pop-up windows includes: an error pop-up window for indicating an erroneous state while the air- conditioner is operated; a wind-direction control pop-up window displayed when a wind-direction control signal for adjusting a wind direction is received; a volume control pop-up window displayed when a signal for adjusting the volume of sound is received; a temperature control pop-up window displayed when a signal for adjusting a desired temperature is received; a wind- volume control pop-up window displayed when a signal for adjusting the volume of wind is received; and a hard- lock pop-up window displayed when a key locking/releasing function is established or a key locking function is displayed.

[34] The air-conditioner according to claim 33, wherein the error pop-up window displays a corresponding indication number corresponding to a predetermined error item when a specific condition matched with the predetermined error item occurs.

[35] The air-conditioner according to claim 33, wherein the wind-direction control pop-up window includes: an up/down control pop-up window displayed when a signal for controlling up/ down directions of the wind vertically is received; and a left/right control pop-up window displayed when a signal for controlling left/ right directions of the wind is received.

[36] The air-conditioner according to claim 35, wherein the up/down control pop-up window is displayed when an upper vane contained in the indoor unit to adjust a direction of the air generated from the indoor unit is vertically rotated.

[37] The air-conditioner according to claim 35, wherein the left/right control pop-up window is displayed when a lateral vane contained in the indoor unit to adjust a direction of the air generated from the indoor unit is horizontally rotated.

[38] The air-conditioner according to claim 31, wherein the pop-up window closes a previous pop-up window when a plurality of signals are repeatedly received, and displays a final pop-up window.

[39] The air-conditioner according to claim 38, wherein: if the previous pop-up window is the error pop-up window indicating an error state, other pop-up window (i.e., the last pop-up window) is displayed, and then returns to the error pop-up window after the lapse of a predetermined time.

[40] An air-conditioner comprising: a main body of the air-conditioner; an input unit for allowing a user to enter memo content in a memo- writing mode according to an operation control command of the air-conditioner or a user selection signal; and a display unit for displaying operation states of the air-conditioner, and displaying memo content entered by a user.

[41] The air-conditioner according to claim 40, wherein the input unit is a remote- controller which includes at least one button and wirelessly transmits/receives signals to/from the air-conditioner.

[42] The air-conditioner according to claim 40, wherein the input unit is a touchscreen which is contained in the display unit and receives a control command or memo from the user brought in contact with the touch-screen.

[43] The air-conditioner according to claim 40, wherein the main body of the air- conditioner further includes a sound output unit for outputting different sounds according to operation state or memo content data.

[44] The air-conditioner according to claim 40, wherein the display unit includes: a display input unit for receiving the control command or memo from the user; a display for displaying the operation state or memo content of the air- conditioner; and a display controller for communicating with a main microprocessor contained in the main body, and controlling the operation state or memo content to be selectively displayed according to a selected mode.

[45] The air-conditioner according to claim 44, wherein the display further includes an avatar image unit for displaying an avatar or moving image stored in a memory.

[46] The air-conditioner according to claim 44, wherein the display input unit is configured in the form of a touch-screen via which the user can enter a desired control command or memo, and is integrated with the display as one unit.

[47] The air-conditioner according to claim 47, wherein the display controller displays a pop-up window for indicating that a new memo is entered while the air-conditioner is operated.

[48] The air-conditioner according to claim 47, wherein the pop-up window is displayed when the movement is detected by a movement sensor contained in the main body.

[49] The air-conditioner according to claim 47, wherein the memo content is checked by a first process wherein a password is entered, and a second process wherein corresponding memo content is displayed only when the password is authenticated. [50] The air-conditioner according to claim 49, wherein: if the password authentication is completed, a memo deletion process in which the checked memo content can be deleted is executed. [51] The air-conditioner according to claim 40, wherein the display unit recognizes memo content entered by a touch-screen as an image and stores the recognized image, or converts the image indicating the entered memo content into text data and stores the text data. [52] The air-conditioner according to claim 40, wherein the memo-writing mode assigns a password to the memo content, and stores the memo content equipped with the password. [53] The air-conditioner according to claim 40, wherein the memo-writing mode displays new memo content during a predetermined time.