JP2019000286A - Display unit for cooking device - Google Patents

Abstract

To consider cost and compactification for suppressing stray in a use method, and improve visibility and operation ability.SOLUTION: A display operation unit 28 of a rice cooker comprises a display part 42 and an operation part 43. The operation part 43 comprises a transparent electrode part for sensing a touch operation. The display part 42 is formed of an LCD 29 formed by stacking plural glass plates having plural display elements 48, and the operation part 43 is arranged on an upper part of the display part 42. the display elements are all formed of a non-selection display element for displaying information of the rice cooker and a selection display element for displaying information of the rice cooker, the transparent electrode part is arranged so as to be overlapped to the selection display element provided on each glass plate.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a display device for a cooker, such as a rice cooker, which sets and selects a cooking method using a display unit and an operation unit.

  As a display device of this type of cooking device, for example, Patent Document 1 has a display unit and an operation unit, and the display unit is configured by a multilayer display device in which a plurality of liquid crystal display devices are stacked. There has been disclosed a display device in which a plurality of display elements for displaying cooker information are arranged so as to partially overlap to provide a display device that can be easily recognized by a user.

  On the other hand, a display device having a touch operation type operation unit has also been proposed in recent cookers. For example, Patent Document 2 includes a display unit and an operation unit, and the operation unit senses a touch operation. A device is disclosed that includes a plurality of electrode portions and is arranged on the upper surface of the display portion, and when a key corresponding to the electrode portion is touch-operated, a specific display element disposed in the display device is turned on or off.

JP 2017-006550 A JP 2006-193257 A

  However, the display device disclosed in Patent Document 1 includes a push-type operation unit that performs a push operation with a switch at a position different from the display unit in order to move the options of the display unit and to select display elements. It was necessary to provide it separately, and there was a possibility that the use method might be lost. In particular, the display device of Patent Document 1 is configured with a multi-layer display device to display all options. Since the number of display elements is large but the number of switches is limited, a plurality of switches are included in one switch. It was necessary to provide a function, and there was a possibility that the use method might be lost.

  For example, in a rice cooker as a cooker, it is necessary to operate the left and right arrow switches when moving options to the target display element and setting the displayed time, but `` rice type '', `` The choices for “Cooking Course” and “Insulation Course” and the setting of the reservation time are also set by operating the common left and right arrow switches, making it difficult to understand what is currently being set or operated. There was a possibility that the method might be lost.

  On the other hand, when using a touch operation type operation unit, touch operations are performed directly on the display elements, so there is little inconvenience in usage, but there is a need for a space to display all display elements in advance. Both the operation unit and the display unit are increased in size and the cost of parts is increased.

  To suppress the increase in size of the operation unit and the display unit, when the number of display elements is reduced or the size of the display elements is reduced, the visibility and operability are reduced.

  Therefore, in view of the above circumstances, the present invention provides a display device for a cooking device that can suppress the occurrence of inconvenience in usage and can improve visibility and operability in consideration of cost and downsizing. For the purpose.

  The present invention is a display device for a cooking device having a display unit and an operation unit, wherein the operation unit includes an electrode unit that senses a touch operation, and the display unit includes a plurality of liquid crystal display devices having display elements. A multi-layer display device, the operation unit is arranged on the upper part of the display unit, the display element is composed of a non-selection display element and a selection display element for displaying information on the cooker, The electrode portion is disposed so as to overlap the selection display element provided in each of the liquid crystal display devices.

  According to the first aspect of the present invention, only the selected display element among the display elements provided in the display unit can be touch-operated using the electrode unit placed on top of the display element. In addition, the number of display elements that can be arranged in a liquid crystal display device can be suppressed, and the range of each display element can be increased as much as possible by a multilayer display device, so that erroneous operation can be prevented and visual recognition can be prevented. And operability can be improved.

  According to the second aspect of the present invention, in the display elements arranged at the same position, it is possible to suppress a decrease in visibility due to overlapping displays.

  According to the third aspect of the present invention, the non-selected display element on which no touch operation is performed is arranged on the first non-selected display element arranged on one liquid crystal display device and on another liquid crystal display device. The second non-selected display element can be displayed without being overlaid, and a reduction in visibility due to the overlapping display can be suppressed.

  According to the fourth aspect of the present invention, the maintenance display element is displayed on the display unit as necessary, thereby prompting the user to clean the cooking device.

  According to invention of Claim 5, when changing the display form of the 1st non-selection display element arrange | positioned at one liquid crystal display device, the 1st selection display element with which touch operation is performed on the upper part, and other When the display form of the second non-selected display element arranged in the liquid crystal display device is changed, the second non-selected display element on which the touch operation is performed is displayed at a different position to thereby display the first non-selected display element. In order to change the display forms of the non-selected display element and the second non-selected display element, respectively, it is possible to eliminate the inconvenience of usage due to the touch operation being performed at the same position.

  According to the sixth aspect of the present invention, it is possible to improve the operability as a cooking device by unifying the shape of the selection display element touched on the upper portion thereof in the surrounding portion and clarifying it.

  According to the seventh aspect of the present invention, when the time displayed on the clock display element is increased or decreased by touching the upper part of the time adjustment display element, the up and down arrows corresponding to the time advance and return directions Is placed in the surrounding portion of the display element for time adjustment, so that it is possible to eliminate the inconvenience of the usage method related to time adjustment.

It is a longitudinal cross-sectional view of the rice cooker as a cooking device in one Embodiment of this invention. It is a top view of a rice cooker same as the above. It is a perspective view which shows the structure of a control PC board and its periphery same as the above. FIG. 4 is a perspective view showing the configuration in a state where the operation button is removed from FIG. 3. It is a principal part top view of a cover body same as the above. It is a top view in the state which lighted all the display elements regarding the glass plate of the 1st layer same as the above. It is a top view in the state which lighted all the display elements regarding the glass plate of the 2nd layer same as the above. FIG. 6 is a plan view of the display operation unit in a state where the LCD displays a screen in an initial cut-off state. It is a top view of the display operation unit of the state which LCD displayed the rice cooking course selection screen same as the above. It is a top view of a display operation unit when LCD displays a cooking selection screen same as the above. It is a top view of the display operation unit of the state which LCD displayed the reservation rice cooking setting screen same as the above.

  Hereinafter, preferred embodiments of a display device for a cooker according to the present invention will be described with reference to the accompanying drawings.

  First, the overall configuration of a rice cooker, which is an example of a cooker, will be described with reference to FIGS. 1 to 4. Reference numeral 1 denotes a rice cooker, which is an abbreviation in which a front surface and a rear surface, and a left side surface and a right side surface face each other when viewed from above. The whole is comprised by the main body 2 of the rice cooker 1 which comprised rectangular shape and the upper surface was opened, and the cover body 3 which covers the upper surface opening part of the main body 2 so that opening and closing is possible. The main body 2 has a pot accommodating portion 4 having an open upper surface, and when the lid 3 is opened, a bottomed pot 5 as a container for accommodating water and rice that are to be cooked is a pot accommodating portion. 4 is configured to be detachably accommodated. The pot accommodating portion 4 is configured by combining a bowl-shaped resin inner frame 6, a metal inner frame ring 7, and the like, and the whole is formed in a bottomed cylindrical shape.

  The pan 5 is made of aluminum having good thermal conductivity as a main material 8, and a heating element 9 made of a magnetic metal plate such as ferritic stainless steel is joined from the lower side to the bottom of the outer surface of the main material 8. An outer surface of the inner frame ring 7 facing the outer surface of the pan 5 is provided with a body heater 11 using a code heater as an example of a heating means. A heating coil 12 is provided on the outer surface of the inner frame 6 facing the bottom surface from the lower side of the side surface of the pan 5 as heating means for electromagnetically heating the heating element 9 of the pan 5.

  At the center of the bottom of the inner frame 6, a pan sensor 14 as a pan temperature detecting means is disposed so as to elastically contact the bottom of the outer surface of the pan 5. The pan sensor 14 of the present embodiment is configured to detect the temperature of the pan 5 and mainly manage the heating temperature of the bottom of the pan 5 by the heating coil 12.

  On the front upper surface of the lid body 3, a lid opening button 15 is disposed in an exposed state. When the lid opening button 15 is pressed, the engagement between the main body 2 and the lid body 3 is released, and the upper portion of the main body 2 is A lid 3 is automatically opened around a hinge shaft 16 by a hinge spring (not shown) provided at the rear. In addition, a steam port unit 17 that discharges steam generated from an object to be cooked in the pan 5 to the outside of the rice cooker 1 is detachably mounted on the rear upper surface of the lid 3.

  The lid 3 is a skeleton of the lid 3 by combining an outer lid 19 as an external component forming an outer shell on the upper surface, a heat radiating plate 20 forming a lower surface of the lid 3, and the outer lid 19 and the heat radiating plate 20. The main component is an outer lid cover 21 serving as a lid base material for forming the. A lid heater 22 as a lid heating unit is provided on the upper surface of the heat radiating plate 20 inside the lid body 3. The lid heater 22 may be an electric heating heater such as a cord heater or a heating coil by electromagnetic induction heating.

  An inner lid assembly 23 as a lower member of the lid 3 is detachably provided below the heat radiating plate 20. The inner lid assembly 23 includes a metal inner lid 24 having a disk shape having substantially the same diameter as the upper opening of the pan 5 and a lid made of an elastic member for sealing between the pan 5 and the inner lid 24. A packing 25, an inner lid ring 26 for mounting the lid packing 25 on the entire outer periphery of the inner lid 24, and a pressure adjusting unit 27 for adjusting the internal pressure of the pan 5 are provided. The ring-shaped lid packing 25 abuts on the upper surface of the pan 5 when the lid 3 is closed, closes the gap between the pan 5 and the inner lid 24, and seals the steam generated from the pan 5 To do.

  A display operation unit 28 is provided on a substantially central upper surface of the lid 3. In addition to time and time, the display operation unit 28 includes an LCD 29 that displays the selected rice cooking course and cooking, an LED 30 that displays the current process, and a switch 31 that starts cooking and selects the rice cooking course. Is arranged on the upper part of the substrate 32 mounted inside the lid 3.

  An operation panel 33 is provided so as to cover the upper portion of the display operation unit 28. The operation panel 33 displays button names and the like, and prevents dust and water from adhering to the LCD 29, the LED 30, the switch 31, and the substrate 32, which are electronic components. In addition to the switch 31 provided on the substrate 32, when a touch sensor 49 described later is provided on the LCD 29, a direct touch operation can be performed in accordance with the display on the LCD 29. Details of the display operation unit 28 will be described later.

  The heat radiating plate 20 is provided with a thermistor-type lid sensor 34 for performing temperature management of the inner lid 24 by the lid heater 22 as lid temperature detecting means for detecting the temperature of the lid 3, particularly the inner lid 24. Yes. In addition, a steam discharge path 35 that connects the steam port unit 17 and the pressure adjusting unit 27 is formed inside the lid body 2 as a passage for releasing steam generated in the pan 5 to the outside. The pressure regulating unit 27 is provided with a pressure regulating valve 36 that opens and closes a steam discharge path 35 between the inside of the pot 5 and the steam port unit 17. The pressure regulating valve 36 is ball-shaped and interlocks with a solenoid 37 provided inside the lid body 3. When the steam in the pan 5 is discharged to the outside, the steam discharge path 35 is opened, and the inside of the pan 5 is pressurized or In the reduced pressure state, the solenoid 37 rolls the pressure regulating valve 36 so as to close the vapor discharge path 35. At the time of pressurization, the cooked rice in the pan 5 is heated by high-frequency energization to the heating coil 12, and when the internal pressure of the pan 5 reaches a predetermined value, the steam discharge path 35 is opened against the dead weight of the pressure regulating valve 36. By doing so, it is the structure which maintains the pressure in the pan 5 more than atmospheric pressure.

  In addition, the rice cooker of this embodiment is provided with the decompression means 38 for making the inside of the pan 5 lower than normal atmospheric pressure with the lid 3 closed to the main body 2. The decompression means 38 accommodates the pan 5 in the pan container 4, closes the lid 3, energizes the solenoid 37, and the internal pressure of the sealed pan 5 with the pressure regulating valve 36 blocking the steam discharge path 35. Reduce. Further, when the pressure inside the pan 5 drops below the atmospheric pressure by a certain value, the operation of the decompression pump 39 serving as the operation source of the decompression means 38 is stopped and the inside of the pan 5 is kept in a decompressed state. Further, when the inside of the pan 5 is returned from the decompressed state to the same pressure as the outside air, the operation of the decompressing pump 39 is stopped, and a path (not shown) communicating between the decompressing pump 39 and the inside of the pan 5 is opened. That is, the decompression means 38 also serves as a pressure return means for returning the inside of the pan 5 from the decompressed state to the same pressure as the outside air.

  In addition, a unitized heating substrate assembly 41 including a heating control means 40 is disposed inside the main body 2. The heating control means 40 is configured to include a microcomputer in order to electrically control each part of the rice cooker 1 in combination with a display / operation control means 46 described later. In response to each temperature detection signal from the sensor 34 and the operation signal from the switch 31, the body heater 11 and the heating coil 12 that heat the pan 5 at the time of cooking and keeping warm, and the lid heater 22 that heats the lid 3 are provided. While controlling each, the display of LCD29 and LED30 is controlled, and also operation | movement of the solenoid 37 and the pressure reduction pump 39 is each controlled. In particular, the heating control means 40 of the present embodiment mainly controls the heating coil 12 based on the temperature detected by the pan sensor 14 to manage the temperature of the bottom of the pan 5 and mainly covers the lid based on the temperature detected by the lid sensor 34. The heater 22 is controlled to control the temperature of the inner lid 24 facing the cooked rice.

  The display operation unit 28, which is a display device of the rice cooker 1 provided on the lid 3, starts the cooking with the display unit 42 using the LCD 29 that displays various information related to cooking, and the rice cooking course. And an operation unit 43 including a switch 31 for selection. A control PC (Printed Circuit: printing circuit) which is a display / operation control unit 46 provided with an LCD 29, a tact switch 45, and the like is provided on the lower surface thereof. Circuit) board 47 is arranged. The control PC board 47 corresponds to the substrate 32 described above, and a control IC (not shown) related to operation and display is mounted on the control PC board 47 formed with a pattern, whereby the heating control means described above. The display / operation control means 46 linked to 40 is configured.

  The LCD 29 serving as the display unit 42 is disposed substantially at the center of the outer lid 19. On the upper surface serving as the surface of the LCD 29, by selecting one of a plurality of display elements 48 displayed on the LCD 29, a rice cooking course or cooking In addition to the selection, a touch sensor 49 that performs time setting and the like by a fingertip touch operation is disposed. The touch sensor 49 functions as a touch key that is the non-push type operation means 50 by being connected to the control PC board 47.

  The operation content performed by the non-push-type operation means 50 on the display unit 42 includes selection / setting of various rice cooking courses, selection / setting of cooking when a specific rice cooking course is selected, current time and reservation time. It does not have a rice cooking key that starts cooking from a cut-off state, or a cut key that stops rice cooking or heat insulation to turn it off, and cannot be operated by touching anywhere other than the display unit 42 The rice cooking key 52A and the cut key 52B are installed by the push type operation means 51 such as the switch 45.

  In addition to the rice cooking key 52A, as a key 52 for turning on the LED 30 to display the process as a rice cooker, such as rice cooking, heat insulation, reservation, etc. In addition to the rice cooking key 52A, heat insulation is started from the cut state, or the cooked rice is reheated during the heat insulation The warming key 52C to be used and the reservation key 52D for cooking the cooked rice at the reservation time are also used as the push-type operation means 51, so that the lamp window 53 through which the light from the LED 30 can be transmitted is provided as an embossing portion. The structure can be easily formed by printing on 54. The embossing portion 54 that bends up and down is disposed at a suitable position on the operation panel 33 exposed on the upper surface of the lid 3 so as to face the tact switch 45. Further, when the inside of the pan 2 is in a decompressed state by the decompression means 38, the specific LED 30 is turned on and illuminated through the lamp window 53A for vacuum sign. And the key 52 here is not only the rice cooking key 52A illuminated by the lit LED 30, the heat retention key 52C, the reservation key 52D, but also the cut key 52B not illuminated by the LED 30, and the candle for cooking the cooked rice quickly. The touch key of the non-push-type operation means 50 and the key 52 of the push-type operation means 51 described above constitute the switch 31 serving as the operation unit 43.

  The push-type operation means 51 includes an operation button 58 formed of a synthetic resin and a tact switch 45 disposed on the control PC board 47 below the embossed operation sheet 57. By providing the sheet 57 on the front surface side of the operation panel 33, the outer appearance surface of the lid 3 is formed.

  The operation unit 43 is arranged on the front side of the upper surface of the lid 3, and a design or embossed operation sheet 57 is printed with the name of each key corresponding to the key 52 and the display unit 42 on which the LCD 29 is arranged. A transparent window portion 60 on which no design is printed is formed above. The touch sensor 49 is disposed below the transparent window 60 and the touch sensor 49 is touched on a display element 48 such as a rice cooking course displayed on the LCD 29, thereby enabling operation as a touch key.

  The operation button 58 has a shape that covers the LCD holder 61 that holds the LCD 29 and the outer periphery of the LCD 29, and is fixed to the control PC board 47. The fixing structure is not limited and may be a nail clip or a screw. Above each tact switch 45, a cylindrical operation button portion 58A is cantilevered by an arm portion 58B formed thinner than the surroundings. The operation button portion 58A and the arm portion 58B constitute the operation button 58, and each time the embossing portion 54 is pressed with a finger from the upper surface side of the operation panel 33, the arm portion 58B is bent and the operation button portion 58A. Pushes the movable part of the tact switch 45, and the tact switch 45 is switched from off to on.

  The control PC board 47 is fixed to the operation panel 33 via the operation buttons 58, and the outer lid lower member 63 formed of a synthetic resin such as PP supports the control PC board 47, and engages with the outer lid 35. And fixed by screwing. Note that the display operation unit 28 including the display unit 42 and the operation unit 43 described above may be provided on the front surface of the rice cooker 1 instead of on the upper surface of the lid 3.

  The heating control means 40 includes a switching element 65 as a heating element for driving the heating coil 12, and the switching element 65 is configured to generate heat with the oscillation of the heating coil 12. Therefore, the switching element 65 is attached to a radiator 66 made of a material having good thermal conductivity such as aluminum, and an electric cooling fan 67 as cooling means is disposed below or on the side of the radiator 66. . In this embodiment, when the cooling fan 67 is driven, cold air is taken into the cooling fan 67 inside the main body 1 from an air inlet (not shown) provided on the side surface of the main body 1. The heat is taken away and discharged from the exhaust port 68 to the outside of the main body 1. Although not shown, the heating substrate assembly 41 is equipped with a temperature detection element, and if the temperature detection element determines that the temperature around the switching element 65 has reached a predetermined temperature or more, the rice cooker 1 needs to be maintained. Is displayed on the LCD 29 by the heating control means 40 and the display / operation control means 46, which are control means.

  Next, the touch sensor 49 and the surrounding features will be described with reference to FIG. In the figure, a touch sensor 49 which is a non-push-type operation means 50 arranged below the operation panel 33 includes a transparent electrode portion 49A made of a conductive polymer and a contact made of a conductive carbon paint connected to the control PC board 47. The electrostatic capacitance type touch sensor which printed the silver containing pattern wiring 49C which connects the part 49B on PET sheet 49D used as an insulating sheet is used. Here, a plurality of components in which the transparent electrode portion 49A and the contact portion 49B are connected by the pattern wiring 49C are arranged in the touch sensor 49 as touch keys.

  In order to improve the touch sensitivity of the touch sensor 49, it is desirable that the transparent electrode portion 49A to be touched is as large as possible and the pattern wiring 49C is as short as possible. However, in recent years, it has become difficult to increase the size of the display unit 42 on which the touch sensor 49 is arranged due to the downsizing of the rice cooker 1.

  In this embodiment, in this embodiment, the transparent electrode portions 49A respectively corresponding to the plurality of display elements 48 are arranged in the display area 71 of the display portion 42 with a substantially equal area, so that which transparent electrode portion 49A is Also have an equivalent touch range. In addition, the respective transparent electrode portions 49A are enlarged and arranged in the area where the design is printed on the outer peripheral portion of the display area 71 of the display section 42, while ensuring the necessary capacitance, the display section 42 can be made compact without difficulty. The transparent electrode portion 49A is arranged along the outer periphery of the display region 71 of the display unit 42, and employs a configuration in which the pattern wiring 49C is not wired in the display region 71, and accordingly, the transparent electrode portion 49A is disposed in the display region. By enlarging and arranging in 71, it becomes possible to achieve the above-mentioned compactness without difficulty.

  Here, the electrostatic capacity is a resistance value generated by touching the vicinity of the transparent electrode portion 49A when the user operates, and the difference in resistance value between when the touch is on and when the touch is off is larger. , Can accurately recognize the presence or absence of touch operation. Further, even when a plurality of touch keys are operated at the same time, it is easy to set erroneous operation determination, and the touch sensitivity as the non-push-type operation means 50 can be maintained and improved.

  Next, the characteristics of the LCD 29 described above will be described with reference to FIGS. The LCD 29 applies a current to a liquid crystal (not shown) sealed with the glass plate 72 by passing a current through the display element 48 which is an electrode pre-printed on the glass plate 72, so that the display element 48 becomes black. By turning on the light, the glass plate 72 is caused to function as a liquid crystal display device.

  When the operation unit 43 of the touch switch is provided on the display unit 42, the operability of the touch switch is important in addition to the visibility of the display element 48. Moreover, in the case of a touch switch having no unevenness on the surface, it is not always possible to touch the intended portion. For this reason, it is important to increase the range of each display element 48 corresponding to the touch switch as much as possible, but the number of display elements 48 that can be arranged on the screen of the LCD 29 is also limited.

  Therefore, the LCD 29 according to the present embodiment secures the number of display elements 48 used by using a multilayer display device in which a plurality of glass plates 72 serving as a substrate on which the display elements 48 are printed are stacked. Further, each selection display element 48-2 and each transparent electrode portion 49A, which will be described later, are not exactly the same shape, and the shape of the transparent electrode portion 49A is more than the shape of the selection display element 48-2 in consideration of the shift of field of view and sensitivity. Has increased. Then, by adjusting the arrangement of the display elements 48, it is possible to prevent erroneous operations and improve operability.

  FIG. 6 shows an example of the first glass plate 72A, and FIG. 7 shows an example of the second glass plate 72B. Here, as the two-layer glass plate 72, a first-layer glass plate 72A and a second-layer glass plate 72B are shown, but a glass plate 72 laminated in three or more layers may be used.

  The display element 48 of this example includes a non-selection display element 48-1 in which the transparent electrode portion 49A is not provided on the upper surface side, and a selection display element 48-2 in which the transparent electrode portion 49 is provided on the upper front side. , Are roughly divided. These non-selection display elements 48-1 and selection display elements 48-2 are arranged in a mixed manner on the first-layer glass plate 72A. Further, the second-layer glass plate 72B disposed on the back surface side of the first-layer glass plate 72A is also disposed with the non-selection display element 48-1 and the selection display element 48-2 in a mixed manner. In other words, among the plurality of display elements 48 provided on each layer of the LCD 29, only the selected display element 48-2 can be touch-operated by using the transparent electrode portion 49 disposed so as to overlap the upper part. Yes.

  Specifically, on the first-layer glass plate 72A shown in FIG. 6, as a plurality of non-selection display elements 48-1, in addition to the current time and reservation time, the time until cooking at the time of cooking and the time of heat retention The time display element 48-1A for displaying the elapsed time, the pressure display element 48-1B for displaying the state of the pressure inside the pan 5 at the time of cooking or keeping warm, and the somauma key 52E are pushed and operated. When the “Uma” rice cooking course is selected, the display element 48-1C for the sour horse and the reservation key 52D are pushed, and the time displayed on the clock display element 48-1A is switched to the reservation time. Reservation setting display elements 48-1D, which are displayed when they are changed, are respectively arranged.

  In addition, on the first layer glass plate 72A, as a plurality of selection display elements 48-2, white rice selection display element 48-2A that enables selection of a rice cooking course of “white rice” and rice washing of “no wash rice” Washing rice selection display element 48-2B enabling selection of course, brown rice selection display element 48-2C enabling selection of "brown rice" rice cooking course, and selection of rice cooking course of "milled rice" The display element 48-2D for selecting the cereal rice to enable, the display element 48-2E for selecting the rice cooking course of “wheat rice”, and the selection of the rice cooking course of “kamado master” are enabled. A cooking element that enables selection of a cooking element that allows selection of a cooking element for selection of a sweet cooking and a display element 48-2G that allows selection of a cooking course for sweet cooking. Including a display element for selection 48-2H, Display element 48-2I for selecting a rice cracker that allows selection of a rice cooking course for "boiled rice", display element 48-2J for eco-friendly rice cooking that enables selection of a rice cooking course for "eco-friendly rice", and display element 48 for a clock The time return adjustment display element 48-2K that enables the return adjustment of the current time and reservation time displayed on -1A and the advance adjustment of the current time and reservation time displayed on the clock display element 48-1A are possible. The time advance adjustment display elements 48-2L to be set are respectively arranged.

  In the second-layer glass plate 72B shown in FIG. 7, as the plurality of non-selective display elements 48-1, for example, the temperature detecting element detects that the switching element 65 has reached a predetermined temperature or more, and the rice cooker The display element 48-1E for maintenance displayed when the maintenance of 1 is necessary, and the display element 48- for selecting cooking that displays the hardness of the selected rice as the cooking state in the rice cooking course of “Kamado Master” 1F is arranged, respectively. The cooking selection selection display element 48-1F is positioned below the display element for clock 48-1A and is deployed in the horizontal direction.

  Further, on the second glass plate 72B, as a plurality of selection display elements 48-2, a clock adjustment selection display element 48-2M that enables selection of clock adjustment and a “white rice mixed” dedicated to “brown rice”. "The rice mixing selection display element 48-2N that enables selection of the rice cooking course" and the rice cooking state displayed on the cooking selection selection display element 48-1F can be adjusted tightly. 48-2O, soft food adjustment display element 48-2P that makes it possible to softly adjust the cooking status displayed on the cooking selection selection display element 48-1F, and storage means that does not show the selected clock adjustment A display element for determination 48-2Q to be stored and set, a return display element 48-2R for returning to the initial cut-off display screen which will be described later without storing and setting the selected clock setting, and a selection capable of touch operation for Selection display elements 48-2S for lighting display the indicate elements 48-2 are arranged respectively.

  Among the display elements 48 described above, the white rice selection display element 48-2A, the no-wash rice selection display element 48-2B, and the brown rice selection display element 48-2C arranged on the first-layer glass plate 72A. The display element 48-2D for selecting the cereal rice and the display element 48-2E for selecting the wheat rice enable selection of the kind of rice in the rice cooking course. Is provided above the clock display element 48-1A. On the other hand, a furnace master selection display element 48-2F, a sweet cooking selection display element 48-2G, a cooking selection display element 48-2H, and a rice cracker selection display arranged on the glass plate 72A of the first layer. Element 48-2I, display element 48-2J for eco-cooking rice selection, and display element 48-2N for mixed white rice arranged on the second glass plate 72B are used to select how to cook rice in the rice cooking course. These are provided below the timepiece display element 48-1A so as to be easily selected by a touch operation following the type of rice.

  In the multilayer LCD 29 according to this embodiment, a group of frequently used display elements 48 is arranged on the first glass plate 72A, and a group of other display elements 48 is arranged after the second glass plate 72B. doing. This is to reduce the burden on the user by reducing the number of times the display is switched between the glass plate 72A of the first layer and the glass plate 72B of the other layer as much as possible when selecting a rice cooking course. It is.

  A part of the display element 48 provided on the first glass plate 72A is arranged so as to overlap the display element 48 provided on the second glass plate 72B. For example, the cooking selection display element 48-2H of the first layer glass plate 72A and the white rice mixing selection display element 48-2N of the second layer glass plate 72B are provided at positions overlapping in plan view. However, the display / operation control means 46 controls the display on the LCD 29 so that these display elements 48-2H and 48-2N are not simultaneously displayed (including blinking). This applies to all of the display elements 48 that overlap between the first glass plate 72A and the second glass plate 72B.

  On the other hand, if the display elements 48 that overlap vertically on the first glass plate 72A and the second glass plate 72B are not simultaneously displayed, a part of the display elements 48 is simultaneously displayed on the multilayer glass plates 72A and 72B. It can also be lit and displayed.

  For example, when the white rice selection display element 48-2A is touch-operated on the first layer glass plate 72A and the type of rice is selected as "white rice", the next choice of cooking method is the display for selecting the master of the oven. Five types of element 48-2F, sweet cooking selection display element 48-2G, cooking selection display element 48-2H, rice cracker selection display element 48-2I, and eco-cooking selection display element 48-2J Is displayed on the same first layer glass plate 72A. On the other hand, for example, when the brown rice selection display element 48-2C is touch-operated with the glass plate 72A of the first layer and the type of rice is selected as “brown rice”, as the next cooking option, the oven master It is necessary to turn on and display four types of display elements 48-2F for selection, a sweet taste selection display element 48-2G, a porridge selection display element 48-2I, and a white rice mixed selection display element 48-2N. However, since the space of the display elements 48-2F, 48-2G, 48-2H, 48-2I, and 48-2J for five horizontals is already used in the first layer glass plate 72A, it is dedicated to brown rice. The white rice mixed selection display element 48-2N cannot be arranged in the same row.

  Therefore, in the present embodiment, the white rice mixing selection display element 48-2N is arranged on the second layer glass plate 72B, and together with the white rice mixing selection display element 48-2N, in the first layer glass plate 72A, The oven master selection display element 48-2F, the sweetness selection display element 48-2G, and the rice cracker selection display element 48-2I can be lit and displayed simultaneously in the same row. At this time, the cooked selection display element 48-2H of the first-layer glass plate 72A that overlaps with the white rice mixed selection display element 48-2N is turned off in order to avoid a decrease in visibility due to overlapping display. It is not displayed.

  The same applies to the clock setting. Before selecting the clock setting, the current time counted by the timer means is displayed on the clock display element 48-1A disposed on the glass plate 72A of the first layer at the same time, and at the same time, The clock adjustment selection display element 48-2M arranged on the glass plate 72B is lit up at the same time. From this state, when a mode that allows the current time or the reservation time to be changed is selected by touching the display element 48-2M for time adjustment for a long time (or pressing the reservation key 52D), Instead of the display element for selection 48-2M, the display element for time return adjustment 48-2K is displayed at the same position (the display element for time advance adjustment is displayed on the left side of the display element for clock 48-1A for displaying time). 48-2L is displayed).

  Further, as shown in FIG. 10 to be described later, for example, after first touching on the white rice selection display element 48-2A to select the rice type “white rice”, the furnace master selection display element 48-2F When touching the top and selecting how to cook rice as “Kamado Master” (that is, selecting a rice cooking course that combines “White Rice” and “Kamado Master”), the first glass plate 72A Along with the white rice selection display element 48-2A and the oven master selection display element 48-2F, the time until the rice is cooked during cooking is lit and displayed on the clock display element 48-1A. The cooking selection display element 48-1F, the hardness adjustment display element 48-2O, and the softness adjustment display element 48-2P arranged on the glass plate 72B of the layer are also lit on and displayed at the same time. At this time, the cooking selection selection display element 48-1F blinks and displays the hardness of the currently set or selected rice. Thus, the plurality of display elements 87 are turned on and / or blinked regardless of which layer of the glass plates 72A and 72B.

  As described above, the LCD 29 serving as the display unit 42 of the present embodiment is configured by a multilayer display device capable of multilayer display in which the plurality of display elements 48 are displayed by the plurality of glass plates 72A and 72B. Therefore, by reducing the number of display elements 48 for each layer and increasing the size of each display element 48 within the limited display range of the LCD 29, the visibility of the display unit 42 and the non-push type The operability at the time of a touch operation on the operation means 50 can be improved.

  The LCD 29 is configured to display a plurality of display elements 48 regardless of the hierarchy. Therefore, the display elements 48 of each layer can be displayed on the same screen, and the functions as the LCD 29 can be expanded.

  The same quadrangular (rectangular) surrounding portion 75 is provided in common to all the selection display elements 48-2 of the present embodiment. This enclosing portion 75 is used to unambiguously instruct the user to perform a touch operation on the upper portion of the LCD 29. Each selection display element 48-2 is configured by arranging characters and symbols to be selected in the surrounding portion 75. For example, the display element 48-2A for selecting white rice is configured by arranging a character portion 76 of “white rice” in the surrounding portion 75, which causes “white rice” to be selected as the rice type of the rice cooking course. The user can be recognized by characters.

  Further, the increase / decrease key touch-operated on the LCD 29 corresponding to the selection display element 48-2 has high versatility and is used in various situations. Therefore, in this embodiment, in order to avoid the confusion of the user when touching the increase / decrease key, the current time and the reservation time that are the display form of the clock display element 48-1A can be changed. Cooking state that is a display form of the display element 48-2K and the time advance adjustment display element 48-2L and the cooking selection selection display element 48-1F arranged on the left and right sides of the display element 48-1A. In order to make it possible to change the display, the stiff adjustment display element 48-2O and the soft eye adjustment display element 48-2P, which are arranged below one side of the cooking selection display element 48-1F, are separately provided. Yes.

  Further, the time return adjustment display element 48-2K of the present embodiment is configured by arranging a character portion 76 of “return” and a downward arrow portion 77 side by side in a surrounding portion 75, and time advance adjustment. The display element 48-2 </ b> L is configured by arranging a “forward” character portion 76 and an upward arrow portion 77 side by side in a surrounding portion 75. Thus, the upward arrow portion 77 that matches the time advance direction is arranged in the surrounding portion 75 of the time advance adjustment display element 48-2L, and the downward arrow portion that matches the time return direction. 77 is placed in the enclosing portion 75 of the return adjustment display element 48-2K, so that the user can touch the current time and reservation time displayed on the clock display element 48-1A on the LCD 29 by a touch operation. When increasing or decreasing, it is possible to eliminate the inconvenience of the usage method regarding the time adjustment, and the operability as the rice cooker 1 is improved.

  On the other hand, since the cooking selection display element 48-1F extends in the horizontal direction of the LCD 29, the stiff adjustment display element 48-2O has a left arrow portion 77 in the enclosure 75. The soft-eye adjustment display element 48-2 </ b> P is configured by disposing a right arrow portion 77 in the surrounding portion 75. Therefore, when the user increases or decreases the degree of hardness of the rice by a touch operation on the LCD 29, the user can select a favorite cooking state without feeling uncomfortable, and the operability as the rice cooker 1 is also improved.

  In addition, the shape of the “arrow part” here is not limited to the shape shown in the figure, but may be a shape provided with a heel at the end of the line segment. Further, a wrinkle other than a triangular shape may be used as an “arrow part”.

  In the present embodiment, the display / operation control means 46 is provided with a storage means (not shown), and when the rice cooking key 52A is pushed, the type of rice and how to cook the rice cooking course selected so far and the specific rice cooking course The cooked state and the adjusted reserved time are set and stored in the storage means, and after adjusting the time with the display element for time return adjustment 48-2K or the display element for time advance adjustment 48-2L, the display element for determination 48-2Q When a touch operation is performed above, the adjusted current time is set and stored in the storage means. The setting contents of the rice cooking course and the cooked state stored and stored in the storage means are read out when the rice cooking course and the cooked state are selected before the next rice cooking, and are displayed on the LCD 29 in a blinking state. Similarly, the setting contents of the reservation time stored and stored in the storage means are read out when the reservation key 52D is pushed before the next rice cooking, and displayed on the LCD 29 in a blinking state. This makes it possible to perform the next setting in a short time with reference to the previous setting contents.

  In this embodiment, the display / operation control means 46 is provided with a timer means (not shown), and the current time counted by the timer means is displayed on the clock display element 48-1A of the LCD 29 as necessary. ing.

  Next, the effect | action is demonstrated based on FIGS. 8-11 about the rice cooker 1 of the said structure. In order to cook rice using the rice cooker 1, rice and water are put into the pan 5 as the food to be cooked, set in the pan accommodating portion 4 of the main body 2, and then the lid 3 is closed. Before and after that, when the power plug of the rice cooker 1 is inserted into the outlet and energized, the rice cooker 1 is in an initial cut-off state in which rice cooking or heat insulation is not performed. FIG. 8 shows a display form of the display operation unit 28 at this time.

  In the initial cutting state, the rice cooking course set and stored in advance is read from the storage means, and for example, the rice cooking course that combines “white rice” and “eco rice” set at the time of the previous rice cooking The display element 48-2A and the eco-cooked rice selection display element 48-2J are lit on the LCD 29. At the same time, in addition to the clock display element 48-1A for displaying the current time, a clock setting selection display element 48-2M that enables the adjustment of the current time by a touch operation, The display elements 48-2S for selection that enable selection of the rice cooking course are each lit on the LCD 29, and the other display elements 48 are turned off. All the LEDs 30 are also turned off. Here, if no touch operation is performed on the LCD 29, and the rice cooking key 52 is then pushed as it is, the heating control means 40 and the display / operation control means 46 serving as the heating means are "white rice" and "eco-friendly". Based on the control pattern of the rice cooking course combined with “rice cooking”, the heating coil 12, the lid heater 22, the solenoid 37, and the vacuum pump 39 are controlled to cook rice to be cooked in the pan 5. Start.

  On the other hand, when the touch operation is performed on the selection display element 48-2S having the character part 76 of “Select” in the initial cut state shown in FIG. 8, the display on the LCD 29 selects the rice cooking course as shown in FIG. Move to the rice cooking course selection screen.

  In the rice cooking course selection screen by the LCD 29, as selectable rice types, the white rice selection display element 48-2A, the non-washed rice selection display element 48-2B, the brown rice selection display element 48-2C, and the cereal rice The selection display element 48-2D and the wheat rice selection display element 48-2E are displayed in the same row side by side above the clock display element 48-1A for displaying the current time, and the currently selected white rice Only the selection display element 48-2A blinks, and the other non-selected display elements 48-2B to 48-2E are lit and displayed. In addition, for “white rice” which is the currently selected rice type, as a selectable cooking method, a furnace master selection display element 48-2F, a sweet cooking selection display element 48-2G, and a cooking selection display An element 48-2H, a porridge selection display element 48-2I, and an eco-cooking selection display element 48-2J are displayed in the same row side by side under the clock display element 48-1A for displaying the current time. Among them, only the currently selected eco-cooking selection display element 48-2J blinks, and the other non-selected display elements 48-2F to 48-2I are lit and displayed. The other display elements 48 are turned off, and all the LEDs 30 are also turned off.

  Here, by touching any of the display elements 48-2B to 48-2E on the LCD 29 and selecting a rice type other than “white rice”, there are selectable cooking methods for the selected rice type. , Kamado master selection display element 48-2F, sweet cooking selection display element 48-2G, cooking selection display element 48-2H, rice cracker selection display element 48-2I, and eco rice selection display element One or more of 48-2J and white rice mixed selection display element 48-2N are selectively displayed. However, as described above, the cooked selection display element 48-2H and the white rice mixed selection display element 48-2N that overlap in the vertical direction can be used regardless of the type of rice selected in order to avoid a decrease in the visibility of the LCD 29. , Is not displayed at the same time.

  Further, when any one of the display elements 48-2F to 48-2I of the LCD 29 is touched while the rice type is selected as “white rice” in which the white rice selection display element 48-2A blinks, this time, “white rice” With regard to how to cook "", the selection is switched from "Eco rice cooking" in which the display element 48-2J for eco-cooking selection blinks to another cooking method corresponding to the touch operation.

  Immediately after the switching of the rice cooking course selection screen shown in FIG. The display element 48-2J blinks as it is selected as it is.

  By comprising in this way, the various rice cooking course regarding the kind of rice and how to cook can be selected from there referring to the kind of rice and how to cook in the rice cooking course set at the time of the last rice cooking. Moreover, if there is no change of the setting regarding a rice cooking course, when the rice cooking key 52A is pushed as it is from the screen of the initial cutting state shown in FIG. 8, the rice cooking operation will start, and therefore the time and labor for selection can be saved.

  In the rice cooking course selection screen shown in FIG. 9, in order to change the cooking method from “eco-cooking” to “kama master” while selecting the rice type as “white rice”, the display element for selecting the kama master of the LCD 29 When a touch operation is performed on 48-2F, the display on the LCD 29 shifts to a cooking selection screen as shown in FIG. This cooking selection screen is displayed not only when “Kamado master” rice cooking course is selected for “white rice”, but also when “Kamado master” rice cooking course is selected for “washless rice”.

  In the cooking selection screen shown in FIG. 10, the white rice selection display element 48-2A corresponding to “white rice” which is the selected rice type and the furnace master selection corresponding to “kama master” which is the selected cooking method. In addition to the display element 48-2F, the cooking selection selection display element 48-1F for selecting the hardness of the cooked rice is displayed at the bottom of the clock display element 48-1A, and the cooking selection selection is performed. Under the display element 48-1F, a hard adjustment display element 48-2O and a soft adjustment display element 48-2P are displayed side by side. And in the cooking selection selection display element 48-1F, the hardness of the rice set at the time of the previous cooking is flashed and displayed as the state selected as it is. The other display elements 48 are turned off, and all the LEDs 30 are also turned off.

  By being configured in this way, with reference to the cooking that becomes the hardness of the rice set at the time of the previous cooking, the desired hardness of the rice is adjusted from the display element 48-2O for adjusting the hardness and the soft eye adjustment. Can be selected by touch operation on the display element 48-2P, and if the rice cooking key 52A is pushed after that, the rice cooking course and cooking selection selected so far are set, and the rice cooking operation can be started immediately. it can. Moreover, if there is no change of the setting regarding rice cooking, when the rice cooking key 52A is pushed and operated from the cooking selection screen shown in FIG. 10, the rice cooking course and cooking selected so far are set. Since the rice cooking operation starts, it is possible to save time by omitting selection.

  The display element 48-1A for clocks here is displayed not as a current time but as a guide for the cooking time until cooking according to the hardness of the selected rice. Accordingly, when a touch operation is performed on the hardness adjustment display element 48-2O or the softness adjustment display element 48-2P in order to change the degree of hardness of the selected rice, the display / operation control means 46 newly starts. Corresponding to the hardness of the selected rice, the flashing display of the cooking selection display element 48-1F is moved to the left and right, and the cooking time from the start of cooking to the completion of cooking is calculated, and the clock display element 48- The cooking time is displayed on 1A.

  When the reservation key 52D is pushed from the cooking selection screen shown in FIG. 10, the display on the LCD 29 shifts to the reserved rice setting screen shown in FIG. In the reserved rice setting screen, the white rice selection display element 48-2A, the furnace master selection display element 48-2F, the cooking selection selection display element 48-1F, and the stiffening adjustment displayed on the cooking selection screen In addition to the display element 48-2O and the soft-eye adjustment display element 48-2P, the reservation setting display element 48-1D, the time return adjustment display element 48-2K, and the time advance adjustment display element 48-2L. Is displayed on the LCD 29. Further, the display of the clock display element 48-1A is switched from the rice cooking time until cooking to the reserved time read from the storage means, and the reserved time is displayed in a blinking state. The other display elements 48 are turned off, and all the LEDs 30 are also turned off.

  By being configured in this way, the reservation time set at the time of the previous rice cooking is referred to, and a new reservation time desired therefrom is set as a reservation setting display element 48-1D or a time return adjustment display element 48-. If the rice cooking key 52A is pushed after that, a new reservation time is set in addition to the previously selected rice cooking course and cooking. The rice cooking operation can be started so that the cooked food is cooked. Moreover, if there is no change in the setting regarding the reservation time, when the rice cooking key 52A is pushed and operated as it is from the cooking selection screen shown in FIG. 11, in addition to the previously selected rice cooking course and cooking, Since the reserved time is set and the rice cooking operation is started so that the food to be cooked is cooked at the reserved time, the operation time can be saved and the time can be shortened.

  In addition, when the heating control unit 40 starts the rice cooking operation and the heating coil 12 performs heating control on the cooking object in the pan 5, the heating control unit 40 outputs a detection signal from the temperature detection element mounted on the heating substrate assembly 41. When it is determined that the temperature around the switching element 65 has reached a predetermined temperature or more based on the detection signal, the maintenance display element 48-1E of the LCD 29 is lit up via the display / operation control means 46. Thereby, the user can be urged that the intake port of the rice cooker 1 is blocked with dust and the intake port needs to be cleaned in order to remove the dust.

  As described above, in the present embodiment, in the display operation unit 28 of the rice cooker 1 serving as the display device of the cooker, the display operation unit 28 has the display unit 42 and the operation unit 43, and the operation unit 43 is operated by touch operation. The display unit 42 includes an LCD 29 as a multi-layer display device in which a plurality of glass plates 72A and 72B serving as a liquid crystal display device having a plurality of display elements 48 are stacked. The operation unit 43 is arranged on the upper part of the unit 42, and the display element 48 includes a non-selection display element 48-1 and a selection display element 48-2 that display information on the rice cooker 1, and a transparent electrode unit 49A. Are arranged so as to overlap the selection display elements 48-2 provided on the respective glass plates 72A, 72B.

  In this case, among the display elements 48 provided on the LCD 29 of the display unit 42, only the selected display element 48-2 can be touch-operated by using the transparent electrode unit 49A arranged so as to overlap the upper part thereof. The range of each display element 48 can be increased as much as possible by the LCD 29 that can be a multilayer display device while ensuring the number of display elements 48 that can be arranged on the glass plates 72A and 72B. Therefore, erroneous operation can be prevented, and visibility and operability can be improved.

  In the present embodiment, for example, the cooking selection display element 48-2H arranged on the first layer glass plate 72A and the white rice mixed selection display element 48-2N arranged on the second layer glass plate 72B. As described above, the display / operation control means 46, which is a control means, controls the display on the LCD 29 so that a plurality of display elements 48 arranged at positions overlapping with the respective glass plates 72A, 72B are not simultaneously displayed. .

  Such a configuration is applied to both the non-selected display element 48-1 and the selected display element 48-2, and in the display element 48 arranged at the same position, a reduction in visibility due to overlapping displays can be suppressed.

  Further, the non-selective display element 48-1 of the present embodiment includes a pressure display element 48-1B as a first non-selective display element disposed on the first-layer glass plate 72A serving as one liquid crystal display device, It has a cooking selection selection display element 48-1F as a second non-selection display element arranged on the second-layer glass plate 72B to be another liquid crystal display device, and cooks with the pressure display element 48-1B. The division selection display element 48-1F is provided at another position that does not overlap vertically.

  As described above, regarding the non-selection display element 48-1 where the touch operation is not performed on the upper part, the pressure display element 48-1B disposed on the first-layer glass plate 72A and the second-layer glass plate 72B. The cooking selection selection display element 48-1F to be arranged can be displayed without being overlaid, and a reduction in visibility due to overlapping displays can be suppressed.

  Moreover, the non-selection display element 48-1 of this embodiment is comprised including the display element 48-1E for maintenance displayed when the maintenance of the rice cooker 1 is required.

  Thereby, the user can be prompted to care for the rice cooker 1 by displaying the maintenance display element 48-1E on the display unit 42 as necessary.

  Further, the non-selection display element 48-1 of the present embodiment includes a timepiece display element 48-1A as a first non-selection display element disposed on the first layer glass plate 72A and a second layer glass plate 72B. And a selection display element 48-1F serving as a second non-selection display element disposed on the touch panel, and the selection display element 48-2 can be operated by touching the transparent electrode portion 49A disposed on the top thereof. Time display adjustment display element 48-2K and time advance adjustment display element 48-2L as first selection display elements enabling the display form of the display element 48-1A to be changed, and these display elements 48-2K, As a second selection display element that is provided at a position different from 48-2L and that allows the display mode of the cooking selection display element 48-1F to be changed by touching the transparent electrode portion 49A disposed on the top thereof. Hardening adjustment And a display element 48-2O and softer adjustment display elements 48-2P, LCD29 is configured to be a multi-layer display device.

  In this case, when changing the display mode of the timepiece display element 48-1A disposed on the first-layer glass plate 72A, the time-return adjustment display element 48-2K or the time advancement in which a touch operation is performed on the display form. When changing the display mode of the adjustment display element 48-2L and the cooking selection display element 48-1F arranged on the glass plate 72B of the second layer, the display for firm adjustment in which the touch operation is performed at the upper part thereof By displaying the element 48-2O and the soft-eye adjustment display element 48-2P at different positions, the display mode of the current time and the reservation time displayed on the clock display element 48-1A, and the cooking selection In order to change the cooking mode for the rice hardness displayed on the display element 48-1F, it is possible to eliminate the inconvenience caused by the touch operation being performed at the same position.

  The selection display element 48-2 of the present embodiment is provided with the same square-shaped surrounding portion 75 in a unified manner.

  If it does in this way, the improvement of the operativity as the rice cooker 1 can be aimed at by unifying the shape of the selection display element 48-2 touch-operated in the upper part in the square surrounding part 75, and clarifying. it can.

  In addition, the non-selection display element 48-1 of the present embodiment includes a clock display element 48-1 that displays a time such as the current time or a reservation time, and the selection display element 48-2 is disposed above the display display element 48-1. When the transparent electrode portion 49A is touch-operated, a time adjustment display element 48-2K and a time advance adjustment display element are provided as time adjustment display elements that enable adjustment of the time displayed on the clock display element 48-1. 48-2L, the time return adjustment display element 48-2K is configured by surrounding a downward arrow portion 77 with a surrounding portion 75, and the time advance adjustment display element 48-2L includes an upward arrow portion 77. It is configured to be surrounded by a surrounding portion 75.

  In this case, by touching the upper part of the time return adjustment display element 48-2K or the time advance adjustment display element 48-2L, a time such as the current time or the reservation time displayed on the clock display element 48-1 is set. When increasing / decreasing, a downward arrow portion 77 according to the time return direction is arranged in the surrounding portion 75 of the time return adjustment display element 48-2K, and an upward arrow according to the time return direction is arranged. By disposing the portion 77 in the enclosing portion 75 of the time advance adjustment display element 48-2L, it is possible to eliminate the inconvenience of the usage method related to time adjustment.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. In the present embodiment, the rice cooker has been described as an example, but the present invention is not limited to this, and can be applied to various cooker display devices such as an IH (induction heating) cooker and a microwave oven. Therefore, the words “cooking rice” and “heat retention” in the specification can be replaced with “cooking”. Further, as the operation unit 43, a touch sensor 49 by various methods other than the capacitance type may be applied.

1 Rice cooker (cooker)
28 Display operation unit (display device)
29 LCD (Multilayer Display)
42 display part 43 operation part 48 display element 48-1 non-selection display element 48-2 selection display element 49A transparent electrode part (electrode part)
72A glass plate (liquid crystal display, one liquid crystal display)
72B glass plate (liquid crystal display, other liquid crystal display)
48-1A Clock display element (first non-selected display element)
48-1B Pressure display element (first non-selection display element)
48-1E Maintenance display element 48-1F Cooking selection selection element (second non-selection display element)
48-2K Time return adjustment display element (first selection display element, time adjustment display element)
48-2L Time advance adjustment display element (first selection display element, time adjustment display element)
48-2O Stiffening adjustment display element (second selection display element)
48-2P Soft-eye adjustment display element (second selection display element)
75 Enclosed part 77 Arrow part

Claims (7)

A cooking device display device having a display unit and an operation unit,
The operation unit includes an electrode unit that senses a touch operation,
The display unit is composed of a multilayer display device in which a plurality of liquid crystal display devices having display elements are stacked,
The operation unit is arranged at the top of the display unit,
Each of the display elements is composed of a non-selection display element and a selection display element that display information of the cooker,
The display device for a cooking device, wherein the electrode portion is disposed so as to overlap the selection display element provided in each of the liquid crystal display devices.   2. The display device for a cooking device according to claim 1, wherein a plurality of the display elements disposed at overlapping positions in each of the liquid crystal display devices are configured not to be displayed simultaneously. The non-selective display element has a first non-selective display element arranged in one liquid crystal display device and a second non-selective display element arranged in another liquid crystal display device,
The display device for a cooking device according to claim 1 or 2, wherein the first non-selection display element and the second non-selection display element are provided at different positions.   The said non-selection display element contains the display element for maintenance displayed when the maintenance of the said cooking appliance is required, The display apparatus of the cooking appliance as described in any one of Claims 1-3 characterized by the above-mentioned. The non-selective display element has a first non-selective display element arranged in one liquid crystal display device and a second non-selective display element arranged in another liquid crystal display device,
The selection display element includes a first selection display element that enables a display form of the first non-selection display element to be changed by touching the electrode portion disposed on the selection display element, and the first selection display element. 2. A second selection display element that is provided separately and enables a display form of the second non-selection display element to be changed by touching the electrode portion disposed on the top thereof. The display device for a cooking appliance according to any one of 4.   The display device for a cooking device according to any one of claims 1 to 5, wherein each of the selection display elements is provided with a surrounding portion having the same shape. The non-selected display element includes a clock display element that displays time,
The selection display element includes a time adjustment display element that enables adjustment of a time displayed on the timepiece display element when the electrode unit disposed on the touch operation is touched.
The display device for a cooking device according to claim 6, wherein the time adjustment display element is configured by surrounding a vertical arrow portion with the surrounding portion.