CN108570815B - Projection display device applied to household appliance, washing machine and control method - Google Patents
Projection display device applied to household appliance, washing machine and control method Download PDFInfo
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- CN108570815B CN108570815B CN201710131306.4A CN201710131306A CN108570815B CN 108570815 B CN108570815 B CN 108570815B CN 201710131306 A CN201710131306 A CN 201710131306A CN 108570815 B CN108570815 B CN 108570815B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
Abstract
The invention belongs to the field of household appliances, and particularly relates to a projection display device, a washing machine and a control method applied to the household appliances, which comprise a control device and a plurality of projection devices electrically connected with the control device, wherein the plurality of projection devices form projection display areas in different areas of the household appliances, the control device controls the different projection devices to be started according to the operation of a user to switch the projection display areas, the plurality of projection devices form a plurality of projection display areas on the household appliances, the control device controls the different projection devices to be started according to the operation of the user to switch projection contents from one projection display area to other projection display areas for displaying, so that the switching of the projection display areas is realized, the mode can project the projection contents to a part which the user can observe easily or project the projection contents to a larger space for displaying after the user performs the operation, the use is more convenient and flexible, the following performance of projection contents is good, and the interaction between users is good.
Description
Technical Field
The invention belongs to the field of household appliances, and particularly relates to a projection display device applied to a household appliance, a washing machine and a control method.
Background
At present, the display area of the washing machine is concentrated on the operation panel, and the display and operation are integrated on the components such as program selection, function setting, display screen and the like. Due to the structure of the washing machine, the installation position and the size of the operation panel are limited, the display area is limited due to the limited installation position of the operation panel, and the display area is small due to the size of the operation panel. At present, a display screen is generally adopted for displaying, and if the area of a display area is increased, the size of the display screen needs to be increased, the larger the size of the display screen is, the higher the price is, and the size increase of the display area and the space of display content are limited for saving cost.
Moreover, the current display area is single, the position cannot be adjusted in real time according to the operation of a user, the following performance of the display area is poor, the user interaction experience is poor, and therefore observation is not suitable in certain positions, and inconvenience is brought to the user.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a projection display device, a washing machine and a control method applied to a household appliance.
In order to solve the technical problems, the invention adopts the technical scheme that:
the projection display device comprises a control device and a plurality of projection devices electrically connected with the control device, wherein the projection display regions are formed in different regions of the household appliance by the plurality of projection devices, and the control device controls the different projection devices to be started according to the operation of a user so as to switch the projection display regions.
A plurality of projection arrangement form a plurality of projection display area on domestic appliance, controlling means opens according to the different projection arrangement of user's operation control, switch over projection content to other projection display area from a projection display area and carry out the projection display, realize the switching in projection display area, this mode can implement the operation back at the user, with projection content projection to the position that the user observed more easily or with projection content projection to great space show, it is more convenient to use, it is more nimble, the followability is good.
The plurality of projection devices are respectively arranged at different parts of the household appliance for projection, projection display areas are formed in different areas of the household appliance, and the control device switches different projection devices for projection according to the operation of a user, so that the switching of the projection display areas is realized.
Through setting up projection arrangement in domestic appliance's different positions, the projection arrangement of different positions carries out the projection towards domestic appliance's different positions, realizes that the different positions of domestic appliance form the projection display area, and this design is simplest, and the follow-up nature in projection display area is better, avoids increasing too much parts, reduces the cost.
The projection device comprises a preset projection device for projecting when the household appliance is started, the preset projection device projects to form a preset projection display area, the control device switches to one or more other projection devices for projecting according to the operation of a user, and the projection content is switched to other projection display areas.
The preset projection device is arranged on the household appliance, when the washing machine is opened, the projection content is projected in the preset projection display area through the preset projection device, the part is generally easy to observe by a user, the visual field is more clear, and the operation of the user is more convenient. The user carries out operation, and the projection device opposite to the operation is started to project the projection content to another projection display area, wherein the area is generally a part which is wider in visual field and more convenient to observe for the user, and is easier to observe and operate.
The household appliance comprises a door cover, the projection device comprises a first projection device for projecting to the door cover, and the control device controls the first projection device and other projection devices to be switched according to the operation of a user on the door cover, so that the switching between a projection display area on the door cover and other projection display areas is realized.
Because domestic appliance's door closure area is great, through setting up a projection arrangement corresponding with the door closure, can be through this projection arrangement with projection content projection to the door closure on, show on the door closure, change observation and operation. When a user performs an operation, the control device controls the projection device corresponding to the operation to be started, and forms a projection display area at another part, so that the projection content is switched from the door cover part to the other projection display area, and the projection display area on the door cover is switched with the projection display area at the other part.
The projection display device comprises a control device, a detection device and a plurality of projection devices, wherein the detection device is used for detecting user operation and is electrically connected with the control device;
preferably, the detection device is an infrared sensor or a switch detection sensor.
The operation of a user is detected by setting the detection device, so that the projection device is automatically controlled and is more intelligent. The detection device can be an infrared sensor, the corresponding projection device is controlled to be opened by sensing the operation of a user or sensing the operation of the user on the household appliance, and the detection device can also be a door body control switch arranged at the position of the door cover, and the corresponding projection device is controlled to be opened by the operation (opening or closing) of the door cover by the user.
A plurality of projection devices are arranged at different parts of the washing machine, projection display areas are formed in different areas of the washing machine, and a control device switches the projection devices to be started according to the operation of a user, so that the projection contents are switched and displayed at different parts of the washing machine.
The projection display device is arranged on the washing machine, the plurality of projection devices are arranged at different positions of the washing machine, so that projection display areas can be formed at different positions of the washing machine, for example, the projection device opposite to the door cover is arranged, the projection display area is formed on the door cover, the projection device corresponding to the operation panel is arranged, the projection display area is formed on the operation panel, and the like, the control device controls the projection device corresponding to the operation performed by the user to be opened according to different operations of the user, so that the projection content is switched among different projection display areas (namely, the projection content is displayed at different positions of the washing machine), the projection device is controlled according to the operations of the user to realize the display of the projection display areas at different positions to display the display content, the man-machine interaction is enhanced, and the experience of the user is increased.
The projection display area is positioned in one or a combination of a plurality of door covers, an operation panel, an observation window, a table panel, the interior of the washing machine and a washing machine box body of the washing machine.
The projection display area of the projection device is positioned on one or a combination of a plurality of the door cover, the operation panel, the observation window, the table panel, the interior of the washing machine and the washing machine box body of the washing machine, the control device controls different projection devices to be opened according to different operations of a user, projection contents are switched among the projection display areas, the structural area of the washing machine is generally larger and/or is convenient to observe, and the observation and the use are more humanized.
The projection device comprises a first projection device and a second projection device, the projection direction of the first projection device faces the disk seat, the projection direction of the second projection device faces the door cover of the washing machine, a user opens the door cover, the control device controls the first projection device to be opened and projects projection contents onto the disk seat, the user closes the door cover, and the control device controls the second projection device to be opened and switches the projection contents onto the door cover.
Through setting up the projection arrangement who throws towards disk seat and door closure respectively, can form the projection display area respectively on door closure and disk seat, controlling means switches between first projection arrangement of control and the second projection arrangement according to the operation of user to the door closure, realizes that the projection content switches at disk seat and door closure spare, and convenience of customers observes, uses and operates more.
A control method of the washing machine comprises the following steps:
the washing machine is started, one of the projection devices is started, a first projection display area is formed on the washing machine,
and the control device switches to other one or more projection devices for projection according to the operation of the user and switches the display content to other projection display areas.
When the user performs operation, the control device controls the projection device corresponding to the operation of the user to be turned on according to the operation of the user, and projects the projection content to other projection display areas, so that the projection content is switched among different projection display areas.
The control method comprises the following steps of,
the washing machine is started, one of the projection devices is started, a projection display area is formed on the washing machine,
the user carries out operation, the detection device detects whether the user opens the door cover and transmits a detection signal to the control device, if so, the control device controls the projection device opposite to the disk seat to open and project the projection content on the disk seat;
if not, the control device controls the projection device opposite to the door cover to open, and the projection content is projected onto the door cover.
The detection device detects whether the door cover is opened or not and transmits detection information to the control device, the control device controls different projection devices to be opened according to the operation of a user on the door cover, and display contents are switched between the door cover and the disk seat to be convenient to observe and operate.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: a plurality of projection devices form a plurality of projection display areas on household appliances, the control device controls different projection devices to be started according to the operation of a user, projection contents are switched to other projection display areas from one projection display area to be displayed, and the switching of the projection display areas is realized.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a projection display device according to the present invention;
FIG. 2 is a flow chart of a control method according to the present invention;
FIG. 3 is a flow chart of the control method of the present invention.
In the figure: 100. the projector device 101, the first and second projector devices 102, the second projector device 200, the controller 300, the detector 600, the door cover 601, the tray 603, the detergent box cover 700 and the control keys.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 3, a projection display device applied to a household appliance includes a control device 200 and a plurality of projection devices 100 electrically connected to the control device 200, wherein the plurality of projection devices 100 form projection display areas in different areas of the household appliance, the plurality of projection display areas are switched to display projection contents in the different projection display areas, and the control device 200 controls the different projection devices 100 to be turned on according to user operation, so as to switch the projection contents from one projection display area to another projection display area for display, thereby realizing switching of the projection display areas.
The projection device performs projection, which is understood to mean that the projection device is turned on and performs projection.
The plurality of projection devices 100 are arranged at different positions of the household appliance, so that the projection devices 100 project towards different positions of the household appliance, projection display areas are formed in different areas of the household appliance, different operations are performed by a user, the control device 200 is switched to turn on the corresponding projection device 100 according to the operation control of the user, the previously turned-on projection device 100 is turned off, projection contents are switched from one projection display area to another projection display area for displaying, and the switching of the projection display areas is realized.
The plurality of projection display areas may be formed by projecting in different directions a plurality of projection apparatuses 100 located in the same area.
Furthermore, the plurality of projection devices are respectively arranged at different parts of the household appliance for projection, projection display areas are formed in different areas of the household appliance, and the control device switches different projection devices for projection according to the operation of a user, so that the switching of the projection display areas is realized.
Specifically, the plurality of projection devices are respectively provided at different portions of the household appliance, the plurality of projection devices respectively project images to form a plurality of projection display areas at different portions or different areas of the household appliance, the control device selects the projection device at a portion corresponding to the operation according to the operation of the user to project, and the unselected projection devices are normally in a closed state.
If the user opens another projection device before the operation, the projection content is switched to the projection device corresponding to the user operation to be opened through the user operation, and the projection content enters the current projection display area from the previous projection display area.
For example, the projection device includes a preset projection device for projecting when the household appliance is turned on, the preset projection device projects to form a preset projection display area, and the control device switches to another one or more projection devices for projection according to the operation of the user, and switches the projection content to another projection display area.
If the user performs another operation after the operation, the control device controls the projection device corresponding to the another operation to be started, and the switching from one projection display area to another display area is realized.
One projection display area can be obtained by starting one projection device for projection, or can be formed by simultaneously projecting a plurality of projection devices.
Further, the household appliance includes a door 600, the projection device 100 includes a first projection device 101 projecting to the door 600, and the control device 200 controls the first projection device 101 and the other projection devices 100 to switch according to the operation of the user on the door 600, so as to switch the projection display area on the door 600 and the other projection display areas.
For example, when the user closes the door 600, the control device 200 controls the first projection device 101 facing the door to be opened, and projects the projection content onto the door 600, and when the user closes the door 600, the control device 200 controls the other projection devices 100 to be opened, and the first projection device 101 facing the door is closed, and the projection content is switched from the door 600 to the other projection display area to be displayed.
Further, the projection display device further comprises a detection device 300 for detecting user operations, the detection device 300 is electrically connected with the control device 200, the detection device 300 detects user operations and transmits detection signals to the control device 200, and the control device 200 controls the plurality of projection devices 100 to switch according to the detection signals, so that the projection display areas are switched.
The detection device 300 may be an infrared sensor for detecting operations performed by a user within a detection range of the infrared sensor, or may be provided with a plurality of projection display areas facing different directions, so that the user can perform operations on the projection display areas, and the control device controls different projection devices 100 to turn on.
The detection device 300 may also be a switch detection sensor, for example, a door control switch is disposed between the door cover and the tray, when a user operates the door cover 600, the door control switch is triggered to act, and a signal is transmitted to the control device 200 to control the switching between the different projection devices 100.
For the household appliance provided with the infrared sensor, the operation of a user can be detected through the infrared sensor, and a signal is transmitted to the control device;
if the infrared sensor is not used in the household appliance, a switch sensor may be additionally provided to detect operation information of the user, such as a door switch provided on a door cover, a detergent box switch provided on a detergent box cover, and the like.
The household appliance includes a washing machine, a dishwasher or a refrigerator, etc.
The household appliance is characterized in that a plurality of projection devices 100 of the washing machine are arranged at different positions of the washing machine, the projection display areas are formed in different areas of the washing machine by the plurality of projection devices 100, and the projection devices 100 are switched to be turned on by a control device 200 according to the operation of a user, so that the projection contents are switched and displayed in different areas of the washing machine.
The projection display area of the projection device 100 is located in one or a combination of several of the door cover 600, the operation panel, the observation window, the table panel, the inside of the washing machine and the washing machine box.
Example two:
as shown in fig. 1 to 3, in this embodiment, to further limit the first embodiment, the projection apparatus 100 includes a preset projection apparatus 100 for performing projection when the household appliance is turned on, a preset projection display area is formed at a certain portion of the household appliance, a user performs an operation, and the control apparatus 200 switches to turn on one or more other projection apparatuses 100 for performing projection according to the operation of the user, and switches the projection content to the other projection display areas.
The user can implement operations in the preset projection display area, for example, the preset projection display area is located at a control panel of the household appliance, the user can operate while observing display contents on the control panel, and the user can also implement operations on other structures or components, for example, the preset projection display area is located on a door cover 600 of the household appliance, and the user operates on the control panel to switch the projection device 100 at different positions.
Specifically, a first projection device 101 and a second projection device 102 corresponding to user operation are arranged on the household appliance, the first projection device 101 is started to form a first projection display area, the second projection device 102 is started to form a second projection display area, the control device 200 presets that the first projection device 101 is started when the household is started, projection contents are projected to the first projection display area to be displayed, the user performs operation, the control device 200 controls the second projection device 102 to be started, the first projection device 101 is stopped, and the projection contents are switched from the first projection display area to the second projection display area to be displayed.
The first projection display area can also be positioned on an operation panel or an observation window or a table panel of the household appliance or an inner or outer plate surface of the household appliance; the second projection display area may also be located on an operation panel or an observation window or a table panel of the household appliance or an inner or outer panel surface of the household appliance.
Furthermore, the household appliance comprises a movable piece and a connecting piece connected with the movable piece, wherein the movable piece can move relative to the connecting piece, and the operation of a user is to operate the movable piece. The household appliance is provided with a first projection device 101 and a second projection device 102, the control device 200 presets that the first projection device 101 is started when the household appliance is started, display contents are projected in a first projection display area, a user moves a movable part, the detection device 300 detects user operation and transmits a detection signal to the control device 200, and the control device 200 controls the second projection device 102 to be started according to the detection signal and switches the display contents to a second projection display area for display.
Specifically, the washing machine comprises a door cover 600 and a tray 601 for mounting the door cover 600, the washing machine is provided with a first projection device 101 and a second projection device 102, the projection direction of the first projection device 101 is opposite to the door cover 600, the projection direction of the second projection device 102 is opposite to the tray 601, when the washing machine is opened, the first projection device 101 is opened, display contents are projected onto the door cover 600, a user opens the door cover 600, a detection device 300 detects that the user opens the door cover 600 and transmits a detection signal to a control device 200, and the control device 200 controls the second projection device 102 to be opened according to the detection signal, so that the display contents are switched to the tray 601.
Different from the above control method, the household appliance is provided with the first projection device 101 and the second projection device 102 which have different projection directions, the first projection device 101 is turned on to form a first projection display area, the second projection device 102 is turned on to form a second projection display area, the user performs the first operation, the detection device 300 detects that the user performs the first operation and transmits a detection signal to the control device 200, the control device 200 controls the first projection device 101 to be turned on to project the projection content to the first projection display area, the user performs the second operation, the detection device 300 detects that the user performs the second operation and transmits the detection signal to the control device 200, the control device 200 controls the second projection device 102 to be turned on, the first projection device 101 is turned off, and the projection content is switched from the first projection display area to the second projection display area for display.
Further, the household appliance comprises a movable piece and a connecting piece connected with the movable piece, the household appliance is provided with a first projection device 101 and a second projection device 102, the first projection device 101 forms a first projection display area in a projection mode, the second projection device 102 forms a second projection display area in a projection mode, a user moves the movable piece to a first position, the detection device 300 detects that the user moves the movable piece to the first position and transmits a detection signal to the control device 200, the control device 200 controls the first projection device 101 corresponding to the operation to be started according to the signal, the display content is projected to the first projection display area, the user moves the movable piece to a second position, the detection device 300 detects that the user moves the movable piece to the second position and transmits the detection signal to the control device 200, the control device 200 controls the second projection device 102 corresponding to the operation to be started according to the detection signal, the first projection device 101 is turned off and the display content is switched to the second projection display area.
Further, the household appliance is a washing machine, and the first projection device 101 and the second projection device 102 are arranged inside the washing machine;
further, the first projection device 101 and the second projection device 102 are disposed on the base 601 of the washing machine; is disposed inside the seat 601 of the washing machine.
Specifically, the washing machine comprises a door cover 600 and a tray 601 for mounting the door cover 600, the washing machine is provided with a first projection device 101 and a second projection device 102, the projection direction of the first projection device 101 is opposite to the door cover 600, the projection direction of the second projection device 102 is opposite to the tray 601, the detection device detects whether a user opens the door cover, if the user closes the door cover 600, the control device 200 controls the first projection device 101 to be opened and project the display content onto the door cover 600, and if the user opens the door cover 600, the control device 200 controls the second projection device 102 to be opened and the first projection device 101 to be closed and switch the display content onto the tray 601.
Example three:
as shown in fig. 1 to 3, the difference between the present embodiment and the first and second embodiments is that the washing machine in the present embodiment includes an operable control key 700, a user operates the control key 700 to transmit a signal to the control device 200, and the control device 200 controls the projection device 100 corresponding to the operation to turn on the projection display according to the operation of the user, so as to realize the switching of the projection display area.
For example, the household appliance comprises a control key, the user selects a program or a function through the control key 700, the control device 200 controls the projection device 100 corresponding to the pressed program or function to be started for projection display, the user replaces the program or the function through the control key 700, and the control device 200 controls the projection device 100 corresponding to the selected program or function to be started for projection display, so that the projection display area is switched.
Example four
As shown in fig. 2, the first control method:
a control method of the washing machine comprises the following steps:
when the washing machine is turned on, the predetermined projection device 100 is turned on to form a predetermined projection display area,
when the user performs an operation, the control device 200 switches to another one or more projection devices 100 to perform projection according to the user operation, and switches the display content to another projection display area.
As shown in fig. 3, another control method of a washing machine is as follows:
a control method of a washing machine includes the steps of,
the washing machine is turned on and the washing machine is started,
the user performs an operation, the detection device 300 detects whether the user opens the door cover 600, and transmits a detection signal to the control device 200, if the user opens the door cover 600, the control device 200 controls the projection device opposite to the disk seat 601 to open, and projects the projection content on the disk seat 601;
if the user closes the door, the control device 200 controls the projection device opposite to the door 600 to open, and projects the projection contents onto the door 600.
When the washing machine is started, one of the projection devices can be started, and a projection display area is formed on the washing machine, and other steps are unchanged.
Further, when the door cover is opened, another detection device for detecting whether the user opens the detergent box may be further provided, the detection device is electrically connected to the controller, if the user opens the detergent box, the projection device 100 corresponding to the detergent box is controlled to be opened, and the projected content is projected onto the detergent box cover 603, and if the user does not open the detergent box, the control device controls the projection device 100 opposite to the dish seat to project the projected content onto the dish seat 601.
The above-mentioned another detecting means for detecting whether the user opens the detergent box may be an infrared sensor or a switch detecting sensor. For the household appliance provided with the infrared sensor, the operation of a user can be detected through the infrared sensor, and a signal is transmitted to the control device;
if the household appliance is not provided with the infrared sensor, a switch sensor can be additionally arranged to detect operation information of a user, such as a box switch arranged on a detergent box cover and the like.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A projection display device applied to household appliances is characterized by comprising a control device and a plurality of projection devices electrically connected with the control device, wherein the plurality of projection devices form projection display areas in different areas of the household appliances, and the control device controls the different projection devices to be started according to the operation of a user so as to switch the projection display areas;
the household appliance is a washing machine and comprises a door cover, a tray seat and a detergent box; the projection display device comprises a first projection device for projecting to the door cover, a second projection device for projecting to the disk seat, and a third projection device for projecting to the detergent box cover;
the projection display device also comprises a detection device for detecting whether the user opens the door cover, and another detection device for detecting whether the user opens the detergent box;
the detection device detects whether a user opens the door cover or not, and a detection signal is transmitted to the control device;
if the user closes the door cover, the control device controls the first projection device to be opened, and projection content is projected onto the door cover;
if the user opens the door, the other detecting means detects whether the user opens the detergent box;
if the user opens the detergent box, controlling the third projection device to be started, and projecting the projection content onto the detergent box cover;
and if the user does not open the detergent box, controlling the second projection device to be started to project the projected content onto the disk seat.
2. The projection display device applied to the household appliance according to claim 1, wherein the plurality of projection devices are respectively arranged at different parts of the household appliance for projection, projection display areas are formed in different areas of the household appliance, and the control device switches the different projection devices for projection according to the operation of a user, so that the switching of the projection display areas is realized.
3. The projection display device applied to the household appliance according to claim 2, wherein the projection device comprises a preset projection device for projecting when the household appliance is turned on, the preset projection device projects to form a preset projection display area, and the control device switches to one or more other projection devices for projecting according to the operation of a user, so as to switch the projection content to the other projection display areas.
4. The projection display device applied to the household appliances according to claim 1, wherein the detection device is an infrared sensor or a switch detection sensor.
5. A washing machine applying the projection display device as claimed in any one of claims 1 to 4, wherein the plurality of projection devices are arranged at different parts of the washing machine, projection display areas are formed at different areas of the washing machine, and the control device switches the projection devices to be turned on according to the operation of a user, so that the projection contents are switched and displayed at different parts of the washing machine.
6. The washing machine as claimed in claim 5, wherein the projection display area is located in one or more of a door cover, an operation panel, an observation window, a table panel, an interior of the washing machine, and a washing machine cabinet.
7. A control method of a washing machine according to claim 5 or 6, characterized by comprising the steps of:
the washing machine is started, one of the projection devices is started, a projection display area is formed on the washing machine,
and the control device switches to other one or more projection devices for projection according to the operation of the user and switches the display content to other projection display areas.
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| CN201710131306.4A CN108570815B (en) | 2017-03-07 | 2017-03-07 | Projection display device applied to household appliance, washing machine and control method |
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| CN201710131306.4A CN108570815B (en) | 2017-03-07 | 2017-03-07 | Projection display device applied to household appliance, washing machine and control method |
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| CN108570815B true CN108570815B (en) | 2022-04-05 |
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| CN108570815A (en) | 2018-09-25 |
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