JP2010169299A - Information display device, item selecting device and heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information display device, an item selecting device and a heating cooker capable of enabling a user to easily read information. <P>SOLUTION: The information display device includes a menu display 210 displaying a plurality of items including highlighted items displayed in a highlighted state, and non-highlighted items which are displayed without being highlighted, a side light 213, a light guide plate 212a and a holder 215 for lighting the entire background of the menu display 210, and a LED 217 for lighting the highlighted items. The side light 213, the light guide plate 212a and the holder 215 light both of the highlighted items and non-highlighted items during a time when the LED 217 lights the highlighted items. The item selecting device 200 includes the information display device. The heating cooker 1 includes the item selecting device 200 in which the items are menus for heating cooking. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention generally relates to an information display device, an item selection device, and a heating cooker, and more specifically, an information display device that displays a plurality of items, and a user selects one of the plurality of items. The present invention relates to an item selection device to be used and a cooking device in which a user selects one of a plurality of cooking menus.

  2. Description of the Related Art Conventionally, for example, there is a device that displays information including a plurality of items, such as a cooking menu display device in a heating cooker. Some of such information display devices use a point light source to light and highlight only specific items.

  For example, in Japanese Patent Laid-Open No. 5-322176 (Patent Document 1), a main display unit that displays various information related to cooking in characters and graphics, and a selection content by a course selection dial are displayed by lighting corresponding LEDs. A microwave oven provided with a course display unit is described.

  In JP-A-6-74451 (Patent Document 2), both the backlight of the group display part of the automatic cooking menu and the LEDs of the individual menus of the group display part according to the amount of rotation of the operation dial. A cooking device that lights up and displays is described. In this heating cooker, for example, the backlight of the group display section of “warm. Vegetable. Thaw” is turned on, and the display section LED of “milk” of that group is turned on. Further, for example, the backlight of the group display section of “heart full cooking” is turned on and the display section LED of “ramen” is turned on. Thus, in this cooking device, the backlight is turned on or off for each group display unit.

JP-A-5-322176 Japanese Patent Laid-Open No. 6-74451

  However, in the microwave oven described in Japanese Patent Laid-Open No. 5-322176 (Patent Document 1), it is necessary for the user to move his / her line of sight, and his / her attention is diverted, making it difficult to read information displayed on the display unit.

  Moreover, in the heating cooker described in Unexamined-Japanese-Patent No. 6-74451 (patent document 2), the backlight of one group display part is lighted among several group display parts, and another group display part is displayed. Since the backlight is turned off, the user cannot read the information on the entire display unit.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an information display device, an item selection device, and a heating cooker that make it easy for a user to read information.

  An information display device according to the present invention includes a display unit that displays a plurality of items including highlighted items that are highlighted and non-emphasized items that are not highlighted, and a background that illuminates the entire background of the display unit An illumination unit and a local illumination unit that illuminates the emphasized item are provided. While the local illumination unit illuminates the emphasized item, the background illumination unit illuminates both the emphasized item and the non-emphasized item.

  The background illumination unit illuminates the entire background of the display unit including both emphasized items and non-emphasized items. On the other hand, the local illumination unit illuminates the emphasized item. When the local illumination unit illuminates the emphasized item, the user can distinguish and recognize the emphasized item from a plurality of items displayed on the display unit. In addition, since the non-enhanced item is illuminated by the background illumination unit while the local illumination unit illuminates the emphasized item, the user can select the emphasized item and the non-enhanced item while the emphasized item is highlighted. Both items can be read.

  By doing in this way, the information display apparatus which can make a user easy to read information can be provided.

  In the information display device according to the present invention, the background illumination unit includes the first light source and the light guide plate that uniformly diffuses the light of the first light source, and the local illumination unit includes the second light source. The second light source is preferably a point light source.

  By doing in this way, an emphasis item is emphasized and displayed easily by the local illumination part.

  The item selection device according to the present invention preferably includes any one of the information display devices described above and a selection unit for the user to select one item from a plurality of items.

  Conventionally, an illumination method in an item selection device such as an operation display unit that selects and displays a cooking menu in a cooking device is, for example, a method of illuminating the entire stage of a stage play with a floodlight. In such uniform illumination, points to be noted are not highlighted and the user's attention cannot be concentrated, and only a diffuse effect can be expected.

  On the other hand, in the information display device according to the present invention, for example, the illumination is performed by a method in which a pin spot light is inserted as necessary, superimposed on the flood light of the entire stage of the stage play. For this reason, among the items on the display section, clearly indicate which items are the selection target and which items are candidates for selection as the leading role, according to the selection made by the user through the selection section as appropriate. Can do. In this way, the user's selection operation becomes extremely easy.

  By doing in this way, the item selection device which makes it easy for a user to read an item and makes it easy to select an item can be provided.

  In the item selection device according to the present invention, it is preferable that the local illumination unit illuminates an item selected by the user using the selection unit as an emphasized item.

  By doing in this way, the item selection apparatus which can make a user easy to select an item can be provided.

  The item selection device according to the present invention is formed separately from the display unit, and displays a character display unit that displays characters selected by the user using the selection unit, a background illumination unit, a local illumination unit, and a character display unit. It is preferable to provide a control unit for controlling.

  The display unit is configured by a sheet on which a plurality of items are printed. Items displayed by the display unit include a plurality of upper items. Each upper item includes a plurality of lower items.

  The background illumination unit includes a sidelight, a light guide plate, and a holder. The sidelight is disposed close to one side of the sheet on the back side of the sheet and irradiates illumination light in the direction of the sheet. The light guide plate uniformly diffuses the light of the sidelight on the back side of the sheet on the back side of the sheet. The holder holds the light guide plate. An opening is formed in the holder.

  The local illumination unit is arranged to illuminate the highlighted item through the opening of the holder. The selection unit includes a rotary dial and a push button that are arranged coaxially and are operated by the user to select an item.

  A control part controls a background illumination part so that it may become the illumination intensity which can visually recognize the whole display part, when the item selection apparatus is supplied with electricity. Further, the control unit controls the character display unit so that the item selected by the user is displayed based on the operation of the rotary dial and the push button performed by the user. Moreover, a control part controls a local illumination part so that the item which the user selected is illuminated as an emphasis item.

  A plurality of upper items including a plurality of lower items are displayed on the display unit. When the item selection device is energized, the entire display unit is illuminated by the background illumination unit, and the user can visually recognize the entire display unit including both the upper item and the lower item.

  The user selects an item by operating the rotary dial and the push button while looking at the entire display unit. The item selected by the user is displayed in characters on the character display section. The item selected by the user is also displayed as an emphasized item on the display unit. In this way, the operation performed by the user is fed back.

  Items not selected by the user are not illuminated by the local illumination unit, but are illuminated by the background illumination unit. Therefore, the user can read information from the entire display unit while selecting an item.

  Further, in the background illumination unit, the light guide plate can uniformly illuminate the entire display unit by uniformly diffusing the light of the side light to the back surface of the sheet on which a plurality of items are printed.

  On the other hand, an opening is formed in the holder, and the local illumination unit illuminates the emphasized item through the opening of the holder. By doing in this way, it is possible to illuminate only a specific item with a simple configuration while performing background illumination of the entire display unit.

  The cooking device according to the present invention includes any one of the item selection devices described above, and the item is preferably a cooking menu.

  By doing in this way, the cooking device which can make a user easy to read the cooking menu and can make a cooking menu easy to select can be provided.

  As described above, according to the present invention, it is possible to provide an information display device, an item selection device, and a heating cooker that make it easy for a user to read information.

It is a front view showing the whole cooking-by-heating machine as one embodiment of this invention. It is a figure which shows the whole menu sheet of the menu display part of a heating cooker. It is a figure which shows the whole light-guide plate arrange | positioned at the back side of a menu sheet. It is a figure which shows a light guide plate and the light source of the light which a light guide plate propagates. It is the figure (A) which shows a holder and LED arrange | positioned at the opening part of a holder, and the figure (B) which takes out and shows only LED. It is a figure which expands a part of cross section of a light-guide plate, and shows the concept of the passage route of illumination light. It is a block diagram which shows the structure relevant to the control of a heating cooker. It is a flowchart which shows the process from the drive start of a heating cooker to the start of selection of a high-order item in order. It is a flowchart which shows the process from the selection start of a high-order item until it determines selection of a high-order item in order. It is a figure which shows a menu display part when a specific high-order item is highlighted. It is a flowchart which shows the process from selection of a high-order item to cooking start in order. It is a figure which shows a menu display part when a specific low-order item is highlighted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing the entirety of a heating cooker as one embodiment of the present invention.

  As shown in FIG. 1, the heating cooker 1 includes a main body 101, and a heating chamber is formed inside the main body 101. Inside the heating chamber, a tray for placing the food to be heated is arranged. An opening for taking in and out an object to be cooked is formed on the front surface of the main body 101, and a vertical door 102 for opening or closing the opening is attached. A user can hold the handle 104 of the door 102 to open and close the door 102. A door screen 103 is formed on the upper portion of the door 102, and the user can visually recognize the inside of the heating chamber through the door screen 103. A menu display unit 210 is disposed below the door 102.

  On the front side of the main body 101, a display operation unit 220 is disposed beside the door 102. As an example, the menu selection unit 200 is configured by the menu display unit 210 and the display operation unit 220. The display operation unit 220 includes a liquid crystal display unit 225 as a character display unit, an operation knob 221 as a rotary dial, an enter button 222 as a push button, a start button 223 and a cancel button 224. The operation knob 221 and the determination button 222 are examples of a selection unit.

  The operation knob 221 and the determination button 222 are arranged coaxially. The user can select the cooking menu by rotating the operation knob 221 and press the determination button 222 to determine the selection of the menu. By operating these knobs and buttons, it is possible to select a cooking menu, change the selection once determined, or start cooking. On the liquid crystal display unit 225, the upper items of the cooking menu selected by the user are displayed in characters.

  Drawing 2 is a figure showing the whole menu sheet of a menu display part of a cooking-by-heating machine.

  As shown in FIG. 2, a menu for heat cooking is displayed on the menu sheet 211. The menu sheet 211 is a translucent sheet formed in a rectangular shape. On this sheet, letters, numbers, and line portions are printed with white or yellow semi-transparent ink, and the other portions are printed with black semi-transparent ink.

  In the menu sheet 211, a plurality of cooking menus are displayed in three upper items (categories). The three upper items are an automatic menu upper item 211A, a health menu upper item 211B, and a manual heating upper item 211C. Each upper item includes a plurality of lower items.

  The automatic menu upper item 211A includes, for example, automatic menu lower items 211a such as “1 warm and warm”, “2 moist and warm”, and “14 cooked rice”. Thus, each subordinate item is composed of a number and a cooking menu name. The health menu upper item 211B includes, for example, health menu lower items 211b such as “15 chicken teriyaki”, “16 chicken fried”, and “28 boiled root vegetables”. The manual heating upper item 211C includes, for example, manual heating lower items 211c such as “29 range”, “30 steamed product”, and “35 care”. The menu sheet 211 displays three upper items and all lower items included in the respective upper items.

  The menu sheet 211 is supported from the back side by a light guide plate and a holder. The light guide plate is a plate-like member that propagates light emitted from the light source in order to uniformly illuminate the entire menu sheet 211.

  FIG. 3 is a diagram illustrating the entire light guide plate disposed on the back side of the menu sheet. FIG. 3A shows one form of the light guide plate, and FIG. 3B shows another form of the light guide plate.

  The light guide plates 212a and 212b shown in FIGS. 3A and 3B are in contact with the entire back surface of the menu sheet 211 (FIG. 2) so as to face the main body 101 (FIG. 1) of the cooking device 1 (FIG. 1). 1) Arranged in.

  As shown in FIG. 3A, as one form, the light guide plate 212a is a flat plate formed of acrylic resin, and a dot pattern is printed on the surface of the light guide plate 212a.

  As shown in FIG. 3B, another form of the light guide plate 212b is formed so that the cross section is curved on the back side of the light guide plate 212b. With such a light guide plate 212b, uniform illumination can be performed using total reflection on the curved back side. In the light guide plate 212b in which the back side is curved in this way and uniform illumination is performed using total reflection, it is not necessary to print a dot pattern.

  The menu sheet 211 is illuminated in the background by the light propagating through the light guide plates 212a and 212b. However, since the priority of the uniformity of illumination and the illumination efficiency of the menu sheet 211 is low, a simple structure is used to reduce the manufacturing cost. The light guide plates 212a and 212b can be employed.

  FIG. 4 is a diagram illustrating a light guide plate and a light source of light propagating through the light guide plate. 4A is a diagram showing the light guide plate and the light source shown in FIG. 3A, and FIG. 4B shows the light guide plate and the light source shown in FIG. 3B. FIG.

  As shown in FIG. 4A, a sidelight 213 is disposed as a first light source so as to extend along the side surface of the light guide plate 212a. As shown in FIG. 4B, a side light cover 214 is disposed so as to cover the surface of the sidelight 213 in the light guide plate 212b having a curved back surface without printing a dot pattern on the surface.

  The sidelight 213 arranged in this way is close to one side of the menu sheet 211. The sidelight 213 emits illumination light in the direction of the light guide plates 212a and 212b and the menu sheet 211. The light guide plates 212a and 212b propagate light emitted from the sidelights 213 and uniformly illuminate the menu sheet 211 from the back side. In this embodiment, it is assumed that the light emitted from the sidelight 213 is white.

  The light guide plates 212a and 212b arranged on the back side of the menu sheet 211 are supported by the holder from the back side.

  FIG. 5 is a diagram (A) showing the holder and the LEDs arranged in the opening of the holder, and a diagram (B) showing only the LED taken out.

  As shown in FIG. 5A, the holder 215 that supports the light guide plate 212a (FIG. 4) from the back side is a rectangular non-transparent plate-like member. A plurality of openings 216 are formed in the holder 215. The holder 215 is disposed inside the cooking device 1 so as to face the entire menu sheet 211 with the light guide plate 212a interposed therebetween. The opening 216 is formed at a position facing the respective upper items printed on the menu sheet 211 and the menu numbers of the respective lower items. At the position of each opening 216, an LED (light emitting diode) 217 shown in FIG. 5B is arranged on the back side of the holder 215. A total of 43 LEDs 217 are arranged. In this embodiment, the light emitted from the LED 217 is assumed to be yellow, but other colors may be used. The LED 217 is a point light source and is an example of a second light source.

  A plurality of LEDs 217 are arranged over the entire longitudinal direction of the opening 216 in order to light up the entire upper item uniformly. On the other hand, one LED 217 is arranged in the center of each opening 216 in the opening 216 facing the subordinate item number.

  If there is no problem in manufacturing cost, power supply capacity, etc., the LED 217 that illuminates the lower items can be lit on the lower items by arranging a plurality of the lower items in the same manner as the LED 217 that illuminates the upper items. There may be.

  As described above, the background illumination unit includes the sidelight 213, the light guide plate 212a, and the holder 215. The local illumination unit is configured by an LED 217. The background illumination unit, local illumination unit, and menu display unit 210 (FIG. 1) constitute an information display device.

  FIG. 6 is an enlarged view of a part of the cross-section of the light guide plate, and shows the concept of the illumination light passage path.

  As shown in FIG. 6, in the cross section of the light guide plate 212a, illumination light from the side light 213 of the background illumination unit enters from the side surface of the light guide plate 212a and is totally reflected on the back side. On the other hand, the illumination light of the LED 217 of the local illumination unit enters from the back surface of the light guide plate 212a and passes through the light guide plate 212a. As described above, the illumination light of the background illumination unit and the local illumination unit arranged at different positions has different operations of total reflection and transmission depending on the incident angle with respect to the light guide plate 212a, and is displayed on the menu through different passage paths. The unit 210 (FIG. 1) is illuminated.

  FIG. 7 is a block diagram showing a control-related configuration of the cooking device.

  As shown in FIG. 7, the heating cooker 1 mainly includes a control unit 230, an item selection device 200, and a door switch 240 as a control-related configuration. The control unit 230 includes a control microcomputer 231, a heating cooker control unit 232, and a storage unit 233. The item selection device 200 includes a menu display unit 210 including a sidelight 213 and an LED 217, a liquid crystal display unit 225, and an operation unit 226. The operation unit 226 includes an operation knob 221, an enter button 222, a start button 223, and a cancel button 224.

  The memory | storage part 233 memorize | stores the data of the character displayed on the liquid crystal display part 225, and the data of the heating sequence of cooking.

  When the door 102 (FIG. 1) of the heating cooker 1 is opened and closed, the door switch 240 detects the opening and closing of the door 102 and sends a signal to the control microcomputer 231 of the control unit 230. The control microcomputer 231 transmits and receives signals to and from the heating cooker control unit 232 and the storage unit 233.

  When the user operates the operation knob 221, the determination button 222, the start button 223, or the cancel button 224, the operation unit 226 transmits a signal to the heating cooker control unit 232 of the control unit 230. The heating cooker control unit 232 controls the sidelight 213, the LED 217, and the liquid crystal display unit 225 based on the signal sent from the operation unit 226 and the signal sent from the control microcomputer 231. The control unit 230 displays the item selected by the user as characters on the liquid crystal display unit 225, turns on the side light 213, and turns on the LED 217 based on the amount of rotation of the operation knob 221 to emphasize background lighting. By performing lighting, the item selected by the user is highlighted.

  Operation | movement of the heating cooker 1 comprised as mentioned above is demonstrated.

  FIG. 8 is a flowchart showing in sequence the steps from the start of driving the cooking device to the start of selection of the upper item.

  As shown in FIG. 8, in step S001, the cooking device 1 is in a standby state (power-off state). In this state, the characters on the menu sheet 211 are slightly visible due to transmission / reflection of external light.

  In step S002, the user opens the door 102 and places the cooked food on the tray. In step S003, the control unit 230 is energized and the control unit 230 is initialized. In step S004, the control unit 230 starts operation. In step S005, the control unit 230 controls the liquid crystal display unit 225 to light up. Operation guidance is displayed on the liquid crystal display unit 225.

  In step S006, the control unit 230 performs control so that the sidelight 213 is lit to illuminate the menu display unit 210 in the background. When the sidelight 213 is turned on, the menu display unit 210 becomes visible. The characters on the menu display unit 210 can be clearly seen.

  FIG. 9 is a flowchart showing in sequence the steps from the start of selecting the upper item until the selection of the upper item is determined.

  As shown in FIG. 9, in step S007, the user operates the operation knob 221 to start menu selection. In step S008, the control unit 230 controls the liquid crystal display unit 225 so that one of the three upper items is displayed in characters according to the rotation amount of the operation knob 221 operated by the user. In step S009, the menu display unit 210 controls the LED 217 so that the upper item corresponding to the upper item displayed on the liquid crystal display unit 225 is highlighted.

  FIG. 10 is a diagram showing a menu display section when a specific upper item is highlighted.

  As shown in FIG. 10, the control unit 230 controls the LED 217 according to the rotation amount of the operation knob 221 operated by the user, and highlights one of the three upper items. FIG. 10 shows a state where the automatic menu upper item 211A is locally illuminated by the LED 217 and highlighted.

  By doing so, the user can easily understand which upper item can be currently selected from both the display on the liquid crystal display unit 225 and the highlighted display on the display unit. .

  As shown in FIG. 9, in step S010, the user determines whether or not it is possible to decide to select the highlighted upper item. If the user can determine the highlighted upper cooking menu item for cooking as the cooking menu to be executed, the user proceeds to step S011 and presses the decision button 222. On the other hand, if the user cannot determine the highlighted cooking upper menu item as the cooking menu to be executed, the user returns to step S007 and further rotates the operation knob 221.

  FIG. 11 is a flowchart showing the steps from the selection of the upper item to the start of cooking in order.

  As shown in FIG. 11, in step S012, the user operates the operation knob 221 to start selecting a lower menu.

  In step S013, the control unit 230 characterizes one of the 14 lower items included in the highlighted automatic menu upper item 211A in accordance with the amount of rotation of the operation knob 221 operated by the user. The liquid crystal display unit 225 is controlled to display. In step S014, the menu display unit 210 controls the LED 217 so that the lower items corresponding to the lower items displayed on the liquid crystal display unit 225 are highlighted.

  FIG. 12 is a diagram showing a menu display section when a specific lower item is highlighted.

  As shown in FIG. 12, the control unit 230 controls the LED 217 in accordance with the amount of rotation of the operation knob 221 operated by the user, and one of the lower items included in the highlighted upper item. To highlight. In FIG. 12, when the automatic menu upper item 211A is locally illuminated by the LED 217 and highlighted, the number part “1” is one of the lower items included in the automatic menu upper item 211A. “1” indicates a state where local illumination is performed with yellow light.

  In this way, the user can select which lower item of which upper item (category) is currently selected from both the display on the liquid crystal display unit 225 and the highlighted display on the menu display unit 210. Can understand easily.

  As shown in FIG. 11, in step S015, the user determines whether or not it is possible to decide to select the highlighted lower item. If the user can determine the heating cooking subordinate item menu highlighted as the cooking menu to be executed, the user proceeds to step S016 and performs an operation of pressing the start button 223. On the other hand, if the user cannot determine the sub-menu item for heating cooking highlighted as the cooking menu to be executed, the user returns to step S012 and further rotates the operation knob 221.

  When start button 223 is pressed in step S016, cooking is started in step S017. The heating cooker control unit 232 reads a heating sequence corresponding to the cooking menu selected by the user from the storage unit 233 via the control microcomputer 231, and cooking is performed according to the heating sequence.

  As described above, the information display device includes a menu display unit 210 that displays a plurality of items including highlighted items that are highlighted and non-emphasized items that are not highlighted, and an overall background of the menu display unit 210. And a local illumination unit that illuminates the emphasis item. While the local illumination unit illuminates the emphasis item, the background illumination unit illuminates both the emphasis item and the non-emphasis item.

  The background illumination unit illuminates the entire background of the menu display unit 210 including both emphasized items and non-emphasized items. On the other hand, the local illumination unit illuminates the emphasized item. When the local illumination unit illuminates the emphasized item, the user can distinguish and recognize the emphasized item from a plurality of items displayed on the menu display unit 210. In addition, since the non-enhanced item is illuminated by the background illumination unit while the local illumination unit illuminates the emphasized item, the user can select the emphasized item and the non-enhanced item while the emphasized item is highlighted. Both items can be read.

  By doing in this way, the information display apparatus which can make a user easy to read information can be provided.

  In the information display device according to the present invention, the background illumination unit includes the sidelight 213 and the light guide plate 212a that uniformly diffuses the light of the sidelight 213, the local illumination unit includes the LED 217, and the LED 217 is a dot. Light source.

  By doing in this way, an emphasis item is emphasized and displayed easily by the local illumination part.

  The item selection device 200 according to the present invention includes any one of the information display devices described above and an operation unit 226 for the user to select one item from a plurality of items.

  By doing in this way, it is possible to provide the item selection device 200 that makes it easy for the user to read an item and make it easy to select an item.

  In the item selection device 200 according to the present invention, the local illumination unit illuminates the item selected by the user using the operation unit 226 as an emphasized item.

  By doing in this way, the item selection apparatus 200 which can make a user easy to select an item can be provided.

  The item selection device 200 according to the present invention is formed separately from the menu display unit 210, and includes a liquid crystal display unit 225 that displays characters selected by the user using the operation unit 226, a background illumination unit, and a local illumination unit. And a control unit 230 for controlling the liquid crystal display unit 225.

  The menu display unit 210 includes a menu sheet 211 on which a plurality of items are printed. Items displayed by the menu display unit 210 include a plurality of upper items. Each upper item includes a plurality of lower items.

  The background illumination unit includes a sidelight 213, a light guide plate 212 a, and a holder 215. The sidelight 213 is disposed in the vicinity of one side of the menu sheet 211 on the back side of the menu sheet 211 and irradiates illumination light in the direction of the menu sheet 211. The light guide plate 212 a uniformly diffuses the light of the sidelight 213 on the back side of the menu sheet 211 on the back side of the menu sheet 211. The holder 215 holds the light guide plate 212a. An opening 216 is formed in the holder 215.

  The local illumination unit is arranged to illuminate the highlighted item through the opening 216 of the holder 215. The operation unit 226 includes an operation knob 221 and a determination button 222 that are arranged coaxially so that a user operates to select an item.

  The control unit 230 controls the background illumination unit so that the illuminance at which the entire menu display unit 210 can be visually recognized when the item selection device 200 is energized. The control unit 230 controls the liquid crystal display unit 225 so that the item selected by the user is displayed based on the operation of the operation knob 221 and the determination button 222 performed by the user. In addition, the control unit 230 controls the local illumination unit so that the item selected by the user is illuminated as an emphasized item.

  The menu display unit 210 displays a plurality of upper items including a plurality of lower items. When the item selection device 200 is energized, the entire menu display unit 210 is illuminated by the background illumination unit, and the user can visually recognize the entire menu display unit 210 including both the upper item and the lower item. .

  The user selects an item by operating the operation knob 221 and the determination button 222 while viewing the entire menu display unit 210. The item selected by the user is displayed as characters on the liquid crystal display unit 225. The item selected by the user is also displayed as an emphasized item on the display unit. Thus, the operation performed by the user is fed back and visualized.

  Items not selected by the user are not illuminated by the local illumination unit, but are illuminated by the background illumination unit. Therefore, the user can read information from the entire menu display unit 210 while selecting an item.

  Further, in the background illumination unit, the light guide plate 212a uniformly illuminates the entire menu display unit 210 by uniformly diffusing the light of the sidelight 213 to the back surface of the menu sheet 211 on which a plurality of items are printed. Can do.

  On the other hand, an opening 216 is formed in the holder 215, and the local illumination unit illuminates the emphasized item through the opening 216 of the holder 215. By doing in this way, it is possible to locally illuminate only a specific item while performing background illumination of the entire menu display unit 210 with a simple configuration.

  The cooking device 1 according to the present invention includes any one of the item selection devices 200 described above, and the item is a cooking menu.

  By doing in this way, the cooking device 1 which can make a user easy to read the cooking menu and can make it easy to select a cooking menu can be provided.

  The embodiment disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above embodiments but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

1: Cooking device, 200: Item selection device, 210: Menu display unit, 211: Menu sheet, 211A: Automatic menu upper item, 211a: Automatic menu lower item, 211B: Health menu upper item, 211b: Health menu lower item 211C: manual heating upper item, 211c: manual heating lower item, 212a, 212b: light guide plate, 213: side light, 215: holder, 216: opening, 217: LED, 221: operation knob, 222: determination button, 225: Liquid crystal display unit, 230: Control unit.

Claims (6)

A display unit that displays a plurality of items including highlighted items that are highlighted and non-emphasized items that are not highlighted;
A background illumination unit that illuminates the entire background of the display unit;
A local illumination unit that illuminates the emphasized item,
While the local illumination unit illuminates the emphasized item, the background illumination unit illuminates both the emphasized item and the non-emphasized item. The background illumination unit includes a first light source and a light guide plate that uniformly diffuses the light of the first light source,
The information display device according to claim 1, wherein the local illumination unit includes a second light source, and the second light source is a point light source. The information display device according to claim 1 or 2,
An item selection device comprising: a selection unit for a user to select one item from the plurality of items.   The item selection device according to claim 3, wherein the local illumination unit illuminates an item selected by the user by the selection unit as an emphasized item. A character display unit that is formed separately from the display unit and that displays items selected by the user using the selection unit in characters;
A controller that controls the background illumination unit, the local illumination unit, and the character display unit;
The display unit is configured by a sheet on which the plurality of items are printed,
The item displayed by the display unit includes a plurality of upper items, each of the upper items includes a plurality of lower items,
The background illumination unit is arranged near the one side of the sheet on the back side of the sheet and irradiates illumination light in the direction of the sheet, and the light of the side light on the back side of the sheet A light guide plate that diffuses uniformly on the back of the sheet, and a holder that holds the light guide plate,
The holder is formed with an opening,
The local illumination unit is arranged to illuminate the highlighted item through the opening of the holder,
The selection unit is composed of a rotary dial and a push button arranged coaxially for a user to select an item by operating,
The control unit controls the background illumination unit so that the illuminance is such that the entire display unit can be visually recognized when the item selection device is energized, and the rotation dial and the push button that the user performs The character display unit is controlled so that an item selected by a user is displayed based on an operation, and the local illumination unit is controlled so that the item selected by the user is illuminated as an emphasized item. Item selection apparatus of 4. An item selection device according to any one of claims 3 to 5, comprising:
The item is a cooking menu.

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