TW201816348A - Refrigerator capable of reducing the deterioration of detection sensitivity and possibility of false detection during operation - Google Patents

Abstract

The invention provides a refrigerator including: a door having a front surface that is covered with a decorative panel; and a sensor substrate disposed on the back side of the decorative panel and provided with a detection area for detecting that the user touches the decorative panel. The sensor substrate is installed with a first transmittance part for transmitting the light of a light source disposed behind the sensor substrate to the front side, so as to proceed with a display on the decorative panel. The first transmittance part is disposed along the detection area of the sensor substrate. The decorative panel has a second transmittance part disposed in front of the first transmittance part of the sensor substrate. At least one of the first transmittance part and the second transmittance part is configured to be shifted upwards from the position of the light source.

Description

refrigerator

An embodiment of the present invention relates to a refrigerator.

In the past, for example, a refrigerator has been proposed, in which an electrostatic capacitance type touch sensor is provided on a door, and when a user touches a predetermined detection area set on the surface of the door, it automatically turns on. Open the door (for example, refer to Patent Document 1). In this type of refrigerator, in consideration of design, a front surface side of a door is covered with a decorative plate formed of a glass material or a plastic (plastic) material, and touch sensing is arranged in a close contact manner on a rear side of the decorative plate. Sensor substrate. [Prior Art Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2012-17865

[Problems to be Solved by the Invention] However, the decorative panel may be slightly stretched due to temperature changes and the like. In addition, when the decorative board expands and contracts, the distance between the decorative board and the sensor substrate changes, which may cause the detection sensitivity to be deteriorated when detecting the user's operation or a false detection may occur.

Therefore, the present invention provides a refrigerator that can reduce the possibility of deterioration in detection sensitivity or occurrence of erroneous detection when detecting a user's operation. [Means for solving problems]

A refrigerator according to an embodiment includes a door, a front surface of which is covered by a decorative plate, and a sensor substrate provided on a rear side of the decorative plate and provided with a detection area that detects a situation where a user touches the decorative plate. The sensor substrate is provided with a first transmitting portion, and the display is displayed on the decorative panel by transmitting light from a light source provided at the rear of the sensor substrate to the front, along the first transmitting portion. The sensor substrate is provided so as to face the detection area, and the decorative plate has a second transmission portion provided in front of the first transmission portion of the sensor substrate, and the first transmission portion and the At least one of the second transmissive portions is disposed so as to be shifted upward from a position of the light source.

Hereinafter, an embodiment will be described with reference to FIGS. 1 to 6.

As shown in FIG. 1, in the refrigerator 1 of the embodiment, the refrigerator compartment 3 and the vegetable compartment 4, which are the refrigerating temperature section, which are the storage rooms for storing ingredients, are arranged in order from the top in the main body 2, and the ice making in the freezing temperature section Chamber 5, upper freezing chamber 6, and lower freezing chamber 7. The vegetable compartment 4 and the ice-making compartment 5 are separated by a heat-insulating partition wall. The refrigerator compartment 3 is opened and closed by two left and right doors 3a and 3b. That is, the refrigerator of this embodiment is a so-called French door type refrigerator. The vegetable compartment 4, the ice-making compartment 5, the upper freezing compartment 6, and the lower freezing compartment 7 are opened and closed by a draw-out door 4a, door 5a, door 6a, and door 7a, respectively. In addition, the structure of the refrigerator 1 shown in FIG. 1 is an example, and a structure in which the number or arrangement order of the storage compartments is different, or a chilled compartment may be provided instead of the upper freezing compartment 6, or the setting temperature may be changed. The structure of the room.

The left door 3a and the right door 3b of the refrigerator compartment 3 are opened by door opening devices 8a and 8b, respectively. Specifically, the left door 3a is provided with a touch sensor 9a for activating the door opening device 8a, and the detection area of the touch sensor 9a is touched by the user, that is, the surface of the decorative board is touched by the user The approximate position of the front of the touch sensor 9a on the front side, so that the door opening device 8a operates to open the left door 3a in the locked state.

The right door 3b is provided with a touch sensor 9b for operating the door opening device 8b. When the user touches the detection area, the door opening device 8b operates to open the right door 3b in a locked state. Further, an operation panel 10 for setting and the like of the refrigerator 1 is provided on the right door 3b. The operation panel 10 is composed of an electrostatic touch sensor, and the LED is always off. On the one hand, when a user stands in front of the refrigerator 1, it is detected by a human sensor or a proximity sensor (not shown). When you get to someone, make the LED light up. Thereby, the operation part of the operation panel 10 is displayed, and it can be operated by a user.

The door opening devices 8a and 8b according to this embodiment are of a solenoid type. Hereinafter, when the door opening devices 8a and 8b are collectively described, the door opening device 8 will be referred to as the door opening device 8; and when the touch sensors 9a and 9b are collectively described, the door sensor 8 will be referred to as the touch sensor 9. The touch sensor 9 corresponds to an operation member.

The door opening device 8 has a conventionally used structure, and therefore detailed descriptions thereof are omitted. However, the door opening device 8 is located on the opposite side from the hinge (not shown) that is the center of rotation of the door, that is, the left and right sides of the refrigerator 1 in this embodiment. It is set toward the open end side of the center side. When the user touches the detection area of any of the touch sensors 9, the solenoid is driven to move a part of the gasket provided in the door body or the door toward The front is pushed out so that the corresponding door opens.

The touch sensor 9 is arranged at the lower part of the open end side of each door, so that the user can easily touch it when the door is opened. As shown in FIG. 2 (a), the touch sensor 9 includes a sensor substrate 12 provided on a back surface of a decorative plate 11, and the decorative plate 11 covers a front surface of a door. FIG. 2 (a) schematically illustrates the configuration of a touch sensor 9b provided in the right door 3b. The sensor substrate 12 is held by a substrate holder 13. Further, a thin-film operation name plate 14 is disposed between the decorative plate 11 and the sensor substrate 12, and an LED is disposed on the back side of the sensor substrate 12, that is, the side opposite to the decorative plate 11. Substrate 15.

In the case of the present embodiment, the sensor substrate 12, the substrate holder 13, the operation indicator plate 14, and the LED substrate 15 are assembled into an integrated assembly structure and are stored in a storage space formed inside the door. Inside. The storage space in which the assembly structure is stored is closed by a cap 16 and a cover member 17. At this time, the pressing portion 17 a provided in the cover member 17 is pressed from the inner peripheral surface 18 of the storage space toward the decorative plate 11 side. Therefore, the sensor substrate 12 is in a state of being in close contact with the back surface of the decorative plate 11 in a state where the operation indicator plate 14 is sandwiched. In addition, parts of the interior of the door other than the storage space are filled with a heat-insulating member such as a urethane material 19.

The decorative plate 11 is attached to the door by a double-sided tape 20. Furthermore, in this embodiment, the structure located near the touch sensor 9 is firmly adhered to the cover 16 in this embodiment. In other words, a holding portion for holding the decorative plate 11 on the door is also provided near the touch sensor 9. This double-sided tape 20 corresponds to a holding member and an adhesive member. Specifically, as shown in FIG. 2 (b), the decorative plate 11 is fixed by a double-sided adhesive tape 20 in a longitudinal direction of the door (the vertical direction shown in the figure) in a range longer than the sensor substrate 12. Thereby, the decorative plate 11 can be restricted from moving to the front side (upper side in the figure) due to deformation or the like, that is, the distance between the decorative plate 11 and the sensor substrate 12 can be suppressed from changing. In addition, in FIG. 2 (b), for example, a configuration may be adopted in which a double-sided adhesive tape 20 is provided below the sensor substrate 12 in a lateral direction (left and right direction in the figure) of the door to hold the decorative plate 11. Moreover, it is also possible to adopt a structure in which the double-sided adhesive tape 20 is affixed in parallel only near the touch sensor 9, and thereby, the position near the touch sensor 9 is farther away from the touch sensor 9. The decorative plate 11 is more strongly fixed. In addition, a structure may also be adopted in which, in addition to the double-sided adhesive tape 20, an adhesive is used in the vicinity of the touch sensor 9 to thereby more strongly fix the decorative plate 11.

As shown in FIG. 3, the sensor substrate 12 is provided with a detection area R, which is used to detect a user's operation, that is, a situation where the user touches the surface of the decorative plate 11 by a change in electrostatic capacitance, and A plurality of substrate openings 21 are formed in a state of being separated from each other so as to follow the detection region R. In addition, although the illustration is omitted on the sensor substrate 12, circuit components and the like are mounted on the rear surface side, that is, the surface opposite to the surface side facing the decorative plate 11.

The substrate opening 21 is for transmitting the light irradiated from the LED 29 (see FIG. 5) to the operation indicator plate 14 side, that is, the decorative plate 11 side, and the LED 29 is provided on the LED substrate disposed on the back side of the sensor substrate 12 15 on. Therefore, the substrate opening 21 is formed to be larger than the size of the LED 29 in consideration of the processing accuracy when mounting the LED 29, the dimensional accuracy of the substrate, or the mounting accuracy.

On the other hand, each of the substrate openings 21 is formed to a minimum necessary size. In addition, the required minimum size refers to a degree that can be irradiated to the indicator plate opening 28 formed on the operation indicator plate 14 as described later with reference to FIG. 6 in consideration of the mechanical accuracy and the like. size. Therefore, the substrate opening portion 21 of this embodiment is formed in a vertically long oval shape. By providing the substrate opening 21 having such a size, it is possible to more accurately detect the change in electrostatic capacitance.

That is, in order to detect the user's operation with high accuracy, the sensor substrate 12 must be brought into close contact with the rear surface side of the decorative plate 11 at a certain distance. At this time, as described above, the decorative plate 11 is held by the double-sided tape 20 so that the distance from the sensor substrate 12 is fixed. However, if the substrate opening 21 is excessively enlarged, for example, if it is formed into a slit-like shape over the entire circumference of the detection area R, the detection area R and other parts of the sensor substrate 12 (hereinafter, for convenience) (Referred to as the body part) becomes only slightly connected. As a result, the detection area R may swell from the main body portion of the sensor substrate 12.

On the other hand, if each of the substrate openings 21 is formed to have the minimum necessary size, the connection portion between the detection region R and the main body portion becomes firm, and the detection region R can be prevented from swelling or the like. At this time, as described above, since the circuit components are mounted on the back side of the sensor substrate 12 and the wiring pattern 23 is provided on the front side, the detection area R is flush with the body portion and flat. Thereby, as long as the sensor substrate 12 is brought into close contact with the back surface side of the decorative plate 11, the detection region R will also be brought into close contact, thereby preventing a decrease in detection accuracy.

A guard electrode 22 is provided on the sensor substrate 12 on the outer peripheral side of the detection region R. The protective electrode 22 is used to prevent a door from being accidentally opened when a user touches a relatively wide area including the periphery of the detection area R. Specifically, for example, as a countermeasure when the user touches a wide range including the detection area R with a rag or the like when cleaning the door.

Each substrate opening 21 is formed in a so-called long hole shape. At this time, after opening a hole as a reference by using a drill, the sensor substrate 12 is directly moved in a predetermined direction, whereby the substrate opening 21 can be formed, and the hole processing can be easily performed.

The sensor substrate 12 shown in FIG. 3 is provided on the right door 3b. In the present embodiment, in the case of the touch sensor 9a provided on the left door 3a, the positional relationship of the detection area R is as shown in FIG. 1, and is the same as that of the sensor substrate 12 for the right door 3b shown in FIG. symmetry. That is, in this embodiment, the sensor substrates 12 having different arrangements are used for the left door 3a and the right door 3b. More specifically, for the sensor substrate 12 provided in the left door 3a and the right door 3b, the detection area R is located on the open end side.

At this time, considering the general viewpoint of reducing the number of parts to achieve cost reduction, it is ideal to use a common sensor substrate 12, but if a common sensor substrate 12 is used, the detection area R The position will differ among the doors. More specifically, the distance from the open end of each door to the detection area R will differ between the left door 3a and the right door 3b. At this time, the user may feel uncoordinated with the operation, or lose the left-right symmetry, resulting in a decrease in design.

Therefore, in this embodiment, two types of sensor substrates 12 for the left door 3a and the right door 3b are used in consideration of the operability of the user. Thereby, in the left and right doors, the distance from the open end side to the detection area R is consistent, and there is no discomfort.

Further, in the present embodiment, the sensor substrate 12 is not a simple rectangle, but a cut-in portion 12b is provided, and the cut-in portion 12b is located above the lower side 12a located below the detection area R. The cut-in portion 12 b is provided with connectors 24 and 25 for outputting a sensor signal and for connecting to the LED substrate 15. That is, the connectors 24 and 25 are provided below the circuit components and the like of the sensor substrate 12. With this, for example, even when water falls on the cables 26 and 27, the water droplets can be prevented from falling on the circuit components of the sensor substrate 12 and the like. The connectors 24 and 25 are mounted on the back side of the sensor substrate 12.

In addition, by providing the cut-in portion 12b, the lower end of the sensor substrate 12 becomes the lower edge 12a below the detection area R, and the sensor substrate 12 can be brought as close as possible to the lower side of the door. In addition, in the case of the refrigerator 1 having a plurality of storage compartments as in the present embodiment, when the user has to open the door by hand without the door opening device 8, the user often grasps the lower part of the door to open it. Therefore, it is considered that the user can easily operate the touch sensor 9 by providing the cut-in portion 12b and arranging the detection area R near the lower end of the door.

In addition, the vertical decorative plate 11 may have a structure in which, although it is considered that the central portion in the vertical direction may be deformed in a protruding manner, by disposing the touch sensor 9 on the lower side of the decorative plate 11, Even if deformation occurs, the amount of deformation can be expected to be smaller than that of the center portion, and a structure having further resistance to erroneous detection and the like can be expected.

In addition, when the touch sensor 9 is operated, it is difficult to perform the operation unless the position of the detection area R is known. Therefore, the present embodiment includes a presentation means that visually presents the detection area R. This presentation member is composed of an operation indicator plate 14 and an LED substrate 15.

In addition, a structure is adopted in which a proximity sensor (not shown) is provided on the sensor substrate 12 to constantly turn off the LED 29, and when the proximity sensor detects that a person intends to perform an operation, the LED is turned on. 29 Lights up or flashes.

The operation indicator plate 14 is formed into a thin film from a resin material or the like, and as shown in FIG. 4, the operation indicator plate 14 is approximately the same size as the outer shape of the sensor substrate 12. A plurality of indicator plate openings 28 are formed on the operation indicator plate 14. In the case of the present embodiment, the two openings in the shape of circular holes are provided along the left and right sides of the detection area R (see FIG. 3).

As shown in FIG. 5, the LED substrate 15 is provided with a plurality of LEDs 29 one-to-one with the substrate opening 21 at positions corresponding to the substrate opening 21 of the sensor substrate 12. The LED substrate 15 is connected to the sensor substrate 12 via a connector 30 and a cable 26.

In addition, the door is a person who opens and closes the refrigerator compartment 3, and naturally requires heat insulation. Therefore, as described above, the inside of the door is filled with the urethane material 19 and the like. At this time, if the sensor substrate 12 is disposed inside the door, the urethane material 19 is not filled in the storage space, and thus the heat insulation property may change. Therefore, it is desirable that the storage space is as much as possible. For small capacity. That is, in a case where the sensor substrate 12, the operation indicator plate 14, and the LED substrate 15 are arranged in an overlapping manner as shown in FIG. 2, it is preferable to be as thin as possible.

On the other hand, as the distance from the LED substrate 15 becomes shorter, the distance between each LED 29 and the operation indicator plate 14 becomes shorter. As a result, a range (hereinafter, referred to as an irradiation range) for which each LED 29 can be irradiated is reduced on the back side of the operation indicator plate 14. Therefore, in the case where the signboard opening 28 of the operation signboard 14 is large, more specifically, if the size of the signboard opening 28 is larger than the irradiation range of the LED 29, the signboard opening 28 cannot be uniformly illuminated. Bright, resulting in uneven brightness. In addition, since this uneven brightness is also seen by the user, there is a possibility that the design or quality of the refrigerator 1 may be impaired.

Therefore, in the present embodiment, the size of the sign plate opening portion 28 is formed so as to be smaller than the irradiation range of the LED 29 at the position where the sign plate 14 is operated. Thereby, from the front side of the door, the detection area R is presented to the user as a range surrounded by a so-called dot display. At this time, since there is no uneven brightness in the sign plate openings 28, the light of each sign plate openings 28 becomes uniform, and the quality of the refrigerator 1 is not damaged.

Moreover, in this embodiment, as shown in the front view of FIG. 2 (b), the indicator plate opening portion 28 is provided above the center line L1 of the LED 29 as shown in the longitudinal cross-sectional view of FIG. It is needless to say that the position of the indicator plate opening 28 is within the irradiation range of the LED 29. Therefore, when viewed from the direction of the straight line L2 passing through the LED 29, the substrate opening 21, and the indicator plate opening 28, the brightness is highest. In the case of the present embodiment, the direction of the straight line L2 is set to be close to the height of the eyes when an ordinary adult uses the refrigerator 1.

At this time, assuming that the position of the sign board opening 28 is on the front of the LED 29, that is, on the center line L1, it is difficult for a user who comes to the refrigerator 1 to open the door of the refrigerator 1 to grasp the position of the detection area R .

On the other hand, as shown in this embodiment, the position of the indicator plate opening 28 is positioned higher than the front of the LED 29, so that even a user who comes to the front of the refrigerator 1 can easily grasp the position of the detection area R.

When an LED 29 having the same color as that of the decorative plate 11 is used, a so-called high-brightness LED may be used. The front-side brightness of such an LED element is the highest. Therefore, if the sign plate opening 28 is provided on the front side of the LED, it may be dazzling. In addition, considering that the refrigerator 1 is used almost every day, it is not ideal to make people feel so dazzled whenever the door is operated. Therefore, the position of the sign plate opening 28 is shifted from the front surface of the LED 29 as in the present embodiment, so that a dazzling situation can be avoided. In particular, if the touch sensor 9 is installed on the lower end side of the door as shown in FIG. 1, the LED 29 may be located at the height of the child's line of sight. It is configured so as to suppress the possibility that children look directly at the LED 29.

The refrigerator 1 described above has the following effects.

The decorative plate 11 of the refrigerator 1 is provided near the sensor substrate 12, and is held at a fixed distance from the sensor substrate 12 by a holding member (double-sided tape 20) that holds the decorative plate 11. Thereby, the distance between the sensor substrate 12 and the vicinity of the sensor substrate 12 constituting the touch sensor 9 which is the operating member is fixed, so that the detection sensitivity degradation when detecting a door opening operation by a user can be reduced or The possibility of accidental detection.

As the holding member, a double-sided tape 20 is used as an adhesive member, which adheres the decorative plate 11 to a structure located near the sensor substrate 12. Therefore, when the decorative plate 11 is fixed, the fixing operation can be easily performed.

Furthermore, the refrigerator 1 is provided with a prompting member composed of an operation indicator plate 14 and an LED substrate 15 and the like, and presents the detection area R of the touch sensor 9 to the user, so that the user can easily grasp which part is touched to open the door. .

The presentation means is composed of one or more point light sources that perform so-called point display. Thereby, the design of the detection area R can be improved by using two lines of simple displays.

The LED 29 indicating the detection area R is disposed on the back side of the sensor substrate 12. On the sensor substrate 12, a plurality of substrate openings 21 are formed along the detection area R. The plurality of substrate openings 21 are used for In order to transmit the light irradiated from the LED 29 to the operation indicator plate 14 side. Thereby, it is possible to reduce the possibility that the portion of the detection region R starts to follow the body portion of the sensor substrate 12, and the sensor substrate 12, that is, the detection region R, can be brought into close contact with the decorative plate 11. Therefore, a decrease in detection accuracy can be prevented.

The size of the indicator plate opening portion 28 of the operation indicator plate 14 is smaller than the irradiation range of the LED 29, and its position is higher than the LED in the longitudinal direction of the refrigerator 1. Thereby, the light from the LED 29 is irradiated toward the line of sight of a user who is close to the refrigerator 1, that is, a user who wants to open the door of the refrigerator 1. Therefore, the user can easily grasp the detection area R. (Other embodiments)

The present invention is not limited to those exemplified by the one embodiment described above, and can be arbitrarily modified or expanded, for example, as described below without departing from the scope.

In one embodiment, as the holding member, the double-sided tape 20 as an adhesive member is exemplified, but as the adhesive member, an adhesive may be used. Further, the holding member may be a member other than an adhesive member. For example, as shown in FIG. 7, a rim 40 is provided to cover a part of the decorative plate 11 from the end to the front surface side. Hold the decorative board 11 and the like.

In one embodiment, the so-called French-door refrigerator 1 that opens and closes the refrigerator compartment 3 by the left door 3a and the right door 3b is exemplified. However, the mounting form of the sensor substrate 12 exemplified in the embodiment may also be applied to a borrower. The refrigerator in the refrigerator compartment 3 is opened and closed by one door.

In addition to the circular shape exemplified in the embodiment, the shape of the sign plate opening portion 28 may be a square or rectangular quadrangular shape, a triangular shape, or an arrow shape. Further, in one embodiment, the left and right sides of the detection area R are provided with a sign plate opening 28 for dot display in the vertical direction, but the signs may be provided along the upper and lower sides of the detection area R.板 开关 部 28。 Plate opening 28. Further, a plurality of indicator plate openings 28 may be provided corresponding to one LED 29. For example, it is also possible to adopt a configuration in which another signboard opening 28 is provided below the signboard opening 28 passing through the straight line L2 shown in FIG. 6, so that users other than the imaginary height can easily see it. That is, as long as the indicator plate opening portion 28 is capable of visually presenting the detection area R to the user, any shape or arrangement may be used.

Moreover, the number of the sign board openings 28 may be one row instead of the two rows illustrated in the embodiment, and the number may be different. Moreover, the number of the sign board openings 28 may be provided at the center of the detection area R or Multiple.

In one embodiment, a case where a person is detected by a human sensor, a proximity sensor, or the like to detect a person to illuminate the LED is exemplified. However, a constant lighting mode in which the user always illuminates the LED may be provided.

In one embodiment, the case where the holding member is provided regardless of the distance from the hinge that is the center of rotation is exemplified, but the distance from the hinge to the ends of the doors 3a and 3b opposite to the hinge may be provided. The longer door is provided with a holding member, or the fixing by the holding member is made stronger.

With this, the doors with stronger impact force applied when the doors 3a and 3b are closed are fixed more strongly, so that the doors 3a and 3b can be fixed with an optimal force.

In one embodiment, the case where the holding member is provided near the touch sensor 9 is exemplified, but the holding member may be provided near the position pushed forward by the door opening device 8. Accordingly, even when an impact force is applied from the door opening device 8 when the doors 3a and 3b are opened, the decorative plate 11 can be prevented from bulging from the doors 3a and 3b, and the decorative plate 11 can be prevented from falling off from the doors 3a and 3b.

Each embodiment is merely an example, and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope and spirit of the invention, and are included in the invention described in the scope of patent application and its equivalent scope.

1‧‧‧ refrigerator

2‧‧‧ Ontology

3‧‧‧Refrigerator (storage room)

3a‧‧‧Left door (door)

3b‧‧‧Right door (door)

4‧‧‧ Vegetable Room

4a, 5a, 6a, 7a ‧‧‧ withdrawable doors

5‧‧‧ ice making room

6‧‧‧ Upper freezer

7‧‧‧ lower freezer

8a, 8b‧‧‧‧door opening device

9, 9a, 9b ‧‧‧ touch sensor (operation part)

10‧‧‧ operation panel

11‧‧‧ decorative board

12‧‧‧ sensor substrate

12a‧‧‧

12b‧‧‧cut-in department

13‧‧‧ substrate holder

14‧‧‧Operation indicator board (prompt parts)

15‧‧‧LED substrate (reminder parts)

16‧‧‧ cover

17‧‧‧ cover member

17a‧‧‧Pressing section

18‧‧‧ inner peripheral surface

19‧‧‧ Urethane

20‧‧‧ Double-sided tape (adhesive member, holding member)

21‧‧‧ substrate opening

22‧‧‧Protected electrode

23‧‧‧Wiring pattern

24, 25, 30‧‧‧ connectors

26, 27‧‧‧ cable

28‧‧‧ sign board opening

29‧‧‧LED (reminder part)

40‧‧‧ frame (holding part)

L1‧‧‧ Centerline

L2‧‧‧Straight

R‧‧‧ Detection area

FIG. 1 is a view schematically showing an appearance of a refrigerator according to an embodiment. FIGS. 2 (a) and 2 (b) are diagrams schematically showing a holding member of a decorative plate according to an embodiment, FIG. 2 (a) is a cross-sectional view showing an operating portion of a door, and FIG. 2 (b) This is a front view showing the vicinity of the operation portion of the door. FIG. 3 is a view schematically showing a sensor substrate according to an embodiment. FIG. 4 is a view schematically showing an operation indicator plate according to an embodiment. 5 is a view schematically showing a light emitting diode (Light Emitting Diode, LED) substrate according to an embodiment. FIG. 6 is a longitudinal cross-sectional view schematically showing an operation portion of a door showing a positional relationship between a sign opening portion, a substrate opening portion, and an LED according to an embodiment. FIG. FIG. 7 is a cross-sectional view schematically showing an operation portion of a door of a holding member of a decorative plate according to another embodiment.

Claims (4)

A refrigerator includes: a door, a front surface of which is covered by a decorative plate; and a sensor substrate provided on a back side of the decorative plate and provided with a detection area that detects a situation where a user touches the decorative plate, The sensor substrate is provided with a first transmission portion, and is displayed on the decorative panel by transmitting light from a light source provided at the rear of the sensor substrate to the front, and the first transmission portion is along the The detection area of the sensor substrate is provided, the decorative plate has a second transmission portion provided in front of the first transmission portion of the sensor substrate, and the first transmission portion and the At least one of the second transmissive portions is arranged to be shifted upward from the position of the light source. The refrigerator according to item 1 of the scope of patent application, wherein a thin-film operation indicator plate is arranged between the decorative plate and the sensor substrate. The refrigerator according to claim 1, wherein a light source substrate including the light source is disposed behind the sensor substrate. The refrigerator according to item 1 of the scope of patent application, wherein the door is a French side-by-side door type juxtaposed side by side, and the sensor substrate is disposed at a lower portion of the door.