JP7080667B2 - Display device and storage - Google Patents

Description

The present invention relates to a display device and a storage.

Conventionally, as a display device, for example, an operation panel described in Patent Document 1 is known. The operation panel of Patent Document 1 is provided on the surface of an operation panel main body constituting the outer shell of the operation panel, a display cover made of a transparent smoke resin provided so as to close an opening of the operation panel main body, and a display cover. It is provided with a print sheet in which display information is printed in white on a transparent film, and a light emitting source provided on the back surface side of the operation panel main body. Smoke printing is applied to the print sheet so as to cover the display information, and when the light emitting source emits light, the display information is lit and the display information becomes visible. On the other hand, when the light emitting source does not emit light, the displayed information is blacked out by smoke printing so that it cannot be visually recognized.

Japanese Unexamined Patent Publication No. 7-92917

In the above configuration, the display information directly above the light emitting source is displayed brightly, and the display information away from the light emitting source is displayed darkly, so that there is a problem that the brightness of the entire display information becomes uneven. Further, in order to reduce the unevenness of the brightness of the entire display information, there is a problem that it is necessary to increase the number of light emitting sources.

The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a display device capable of displaying the entire display information with uniform brightness without increasing the number of light emitting sources. ..

In order to solve the above problems, the display device of the present invention is located in a base layer in which display information composed of at least one of a character and a symbol is transparently displayed and a lower layer of the base layer to provide transparency. A display device including a label provided with a first smoke layer in which a part of the member to be smoked is subjected to a smoke treatment, and a light source provided below the label, in the first smoke layer. The range of the smoke processing is a range that overlaps a part of the display information in a plan view and is a range directly above the light source.

The range of smoke processing of the first smoke layer is a range that overlaps a part of the display information in a plan view and is a range directly above the light source. Therefore, among the display information, the display directly above the light source is displayed. The brightness of the information is suppressed, and the brightness of the display information that is not directly above is not suppressed. As a result, it is possible to reduce the unevenness of the overall brightness of the display information without increasing the number of light sources, and the unevenness of the display and the brightness are well-balanced without causing an extreme reduction in the brightness. It becomes.

Further, the label may be configured to include a diffusion layer for diffusing the light of the light source between the base layer and the first smoke layer.

By providing the diffusion layer, the light of the light source is diffused, so that the overall brightness of the displayed information can be made more uniform.

The label may be configured to include a second smoke layer between the base layer and the diffusion layer, which has been smoked at least in a range overlapping with the display information in a plan view.
By providing a second smoke layer between the base layer and the diffusion layer, the display information of the base layer is blacked out when the light source is not emitting light, so that the display information cannot be visually recognized. can.

The transmittance of the wavelength of 440 nanometers to 635 nanometers in the smoke-treated range of the first smoke layer may be in the range of 44.1% to 48.0%.

By setting the transmittance of the first smoke layer within the above range, the overall brightness of the displayed information can be made more uniform.

The range of the smoke treatment in the first smoke layer may be in the range of 34.5% to 50% with respect to the display range of the display information in a plan view.

By setting the smoke processing range of the first smoke layer within the above range, the overall brightness of the display information can be made more uniform.

The storage is provided with the display device according to any one of claims 1 to 5, and is capable of performing a defrosting operation for removing frost adhering to the inside of the storage. The light source may be made to emit light during the frost operation.
Generally, since the defrosting operation is performed a plurality of times a day at predetermined intervals, it is necessary to frequently emit a light source in order to notify the user that the defrosting operation is being performed. Therefore, by using the display device having the above configuration, the number of light sources can be reduced, which can contribute to cost reduction and can also reduce power consumption.

According to the present invention, it is possible to provide a display device capable of reducing unevenness in brightness of the entire display information without increasing the number of light sources.

Perspective view of the storage Top view of the display device Top view of resin molded product Cross-sectional view of resin molded product Enlarged view of the defrosting display Cross-sectional view taken along the line AA in FIG. Exploded perspective view of each layer Table of transmittance for each wavelength in the first smoke layer and the second smoke layer

The display device 10 of the present embodiment will be described with reference to FIGS. 1 to 8. In the following description, the X direction in FIG. 1 is forward, the Z direction in FIG. 2 is upward, and the Y direction is right.

As shown in FIG. 1, the display device 10 is used for a storage 1 capable of performing a defrosting operation, and as shown in FIG. 4, it has a box shape in which an electronic substrate 56 is housed. The label 12 shown in FIG. 2 is attached to the upper surface of the resin molded product 44 of the above.

As shown in FIG. 6, the label 12 is composed of a plurality of layers, and is formed on the base layer 18, the first smoke layer 32 provided under the base layer, and the lower layer of the first smoke layer 32. It includes a diffusion layer 34 provided and a second smoke layer 36 provided below the diffusion layer 34.

As shown in FIG. 7, the base layer 18 is formed by printing the display information 20 on a transparent film with black ink having a concealing property, and the display information 20 is transparently displayed.

As shown in FIG. 2, the display information 20 includes an inspection display unit 22 for notifying the user that the storage 1 is being inspected, a filter display unit 24 for notifying the user that the filter needs to be replaced, and the storage 1. It is composed of a defrosting display unit 26 for notifying the user that the defrosting operation is in progress, and an ECO display unit 28 for notifying the user that the eco-driving operation is in progress. The ECO display unit 28 is composed of a character "ECO" and a gradation display unit 30 extending in the left-right direction from both left and right ends of the character "ECO".

As shown in FIG. 7, the first smoke layer 32 is formed by applying smoke printing to a transparent film. The range of smoke printing is provided in a range that overlaps with the display information 20 in a plan view. The wavelength transmittance of the first smoke layer 32 in the range of 440 nanometers to 635 nanometers is in the range of 44.1% to 48.0% as shown in FIG.

The diffusion layer 34 is formed by applying light diffusion printing to a transparent film. The range of diffuse printing is provided in a range that overlaps with the display information 20 in a plan view. As a result, the light transmitted through the diffusion layer 34 is diffused in the layer.

The second smoke layer 36 is formed by applying smoke printing to a part of the transparent film. As shown in FIG. 2, the second smoke layer 36 is subjected to smoke printing at two locations, a first smoke processing unit 38 and a second smoke processing unit 40. The transmittance of the first smoke processing unit 38 and the second smoke processing unit 40 has the same transmittance as that of the first smoke layer 32, and is the value shown in FIG.

As shown in FIG. 6, a transparent label base material 16 is provided on the upper surface of the base layer 18, and a matte layer 14 for matting the label base material 16 is provided on the upper surface of the label base material 16. Has been done. An adhesive layer 42 is provided on the lower surface of the second smoke layer 36, and the label 12 and the upper surface of the resin molded product 44 are adhered to each other by the adhesive layer 42.

As shown in FIG. 3, on the upper surface of the resin molded product 44, a first opening 46 that opens at a position corresponding to the inspection display portion 22 of the label 12 and a first opening 46 that opens at a position corresponding to the filter display portion 24. A second opening 48, a third opening 50 that opens at a position corresponding to the defrosting display unit 26, and a fourth opening 54 that opens at a position corresponding to the ECO display unit 28 are provided. ing.

As shown in FIG. 4, the electronic substrate 56 is fixed to the bottom of the resin molded product 44, and the electronic substrate 56 is provided with a plurality of LEDs (Light Emitting Diodes 58) as shown in FIG. ing. The electronic board 56 is connected to the control unit of the storage 1, and the LED 58 can emit light by a control signal from the control unit.

The LED 58 is arranged below the first opening 46 and is arranged below the first LED 60 that lights the inspection display unit 22, and a second LED 58 is arranged below the second opening 48 and lights the inspection display unit 22. A third LED 64 arranged below the third opening 50 to light the defrosting display 26, and a third LED 64 arranged below the fourth opening 54 to light the ECO display 28. It is composed of 4 LEDs 66 and. Here, the length between the LED 58 and the label 12 is 8 mm.

As shown in FIGS. 5 and 6, the inside of the third opening 50 is surrounded by the peripheral wall 52, and the peripheral wall 52 prevents the light of the third LED 64 from interfering with the light of the other LED 58. It is suppressing. The first opening 46, the second opening 48, and the fourth opening 54 have the same structure.

The first LED 60 is an LED whose emission color is red, and as shown in FIGS. 2 and 3, two LEDs are arranged at predetermined intervals in the left-right direction. Further, the second LED 62 is an LED whose emission color is orange, and is arranged with two predetermined intervals in the left-right direction.

The third LED 64 is an LED whose emission color is pure green, and one is arranged at the center position in the third opening 50. The third LED 64 with a pure green emission color is generally more expensive than the first LED 60 with a red emission color and the second LED 62 with an orange emission color. It has become.

Like the third LED 64, the fourth LED 66 is an LED whose emission color is pure green, and is located at a position where it overlaps with the letter "E" and the letter "O" of the ECO display unit 28 in a plan view. It is arranged in each.

With reference to FIG. 5, the range of the first smoke treatment section 38 of the second smoke layer 36 with respect to the formation range of the defrosting display section 26 will be described.
The formation range of the defrosting display unit 26 is equal to the opening area of the third opening 50, and if the length W1 in the left-right direction and the length H1 in the vertical direction, the length W1 is 25 mm. The length H1 is 8 mm.

The first smoke processing unit 38 is provided in a range that overlaps with the third LED 64 in a plan view and overlaps with the two characters "defrost" in the center of the defrosting display unit 26. Assuming that the range of the first smoke processing unit 38 is the length W2 in the left-right direction and the length H2 in the vertical direction, the length W2 is in the range of 11.5 mm to 12.5 mm, and the length H2 is from 6 mm. It is within the range of 8 mm. At this time, the range occupied by the first smoke processing unit 38 of the second smoke layer 36 with respect to the display range of the defrosting display unit 26 is
(11.5 mm x 6 mm) ÷ (25 mm x 8 mm) = 0.345
(12.5 mm x 8 mm) ÷ (25 mm x 8 mm) = 0.5
It has become. As described above, the first smoke processing unit 38 is formed in a range of 34.5% to 50% with respect to the formation range of the defrosting display unit 26 centering on the third LED 64 in a plan view. ing.

As shown in FIG. 2, the second smoke processing unit 40 of the second smoke layer 36 has a range that overlaps with the fourth LED 66 in a plan view and overlaps with the character “ECO” of the ECO display unit 28. It is provided in the range.

When all the LEDs 58 are not emitting light, the display information 20 is blacked out by the first smoke layer 32 provided on the base layer 18 so that it cannot be visually recognized from the outside.

When the first LED 60 emits light, the light of the first LED 60 is diffused by the diffusion layer 34 and transmitted by the first smoke layer 32 at the transmittance shown in FIG. Further, the inspection display unit 22 lights up in red by passing through the inspection display unit 22 of the base layer 18. At this time, since two first LEDs 60 are arranged, the brightness of the inspection display unit 22 is uniform as a whole without causing unevenness depending on the portion. Similarly, when the second LED 62 emits light, the entire filter display unit 24 lights up in orange with uniform brightness.

When the third LED 64 emits light, the light of the third LED 64 passes through the second smoke layer 36. Here, among the light transmitted through the second smoke layer 36, the light transmitted through the first smoke processing unit 38 arranged directly above the third LED 64 is transmitted at the transmittance shown in FIG. 8, while passing through the first smoke processing unit 38. All the light transmitted outside the range of the first smoke processing unit 38 is transmitted. The light transmitted through the second smoke layer 36 is transmitted through the diffusion layer 34, the first smoke layer 32, and the defrosting display unit 26 of the base layer 18, and the defrosting display unit 26 is a pure green color. Lights up. In this way, by providing the first smoke processing unit 38 directly above the third LED 64, it is possible to prevent the "defrosting" portion that overlaps with the first smoke processing unit 38 from becoming extremely bright in a plan view. Therefore, unevenness in the overall brightness of the defrosting display unit 26 is reduced. As a result, the defrosting display unit 26 can be lit with uniform brightness without providing a plurality of third LEDs 64, so that the reduction of the third LEDs 64 can contribute to cost reduction. Further, when the storage 1 performs the defrosting operation, the control unit of the storage 1 causes the third LED 64 to emit light, but in general, the defrosting operation is performed a plurality of times a day at predetermined intervals. Therefore, by reducing the number of the third LEDs 64, the power consumption of the storage 1 can be suppressed.

When the fourth LED 66 emits light, the light of the fourth LED 66 passes through the second smoke layer 36. Here, among the light transmitted through the second smoke layer 36, the light transmitted through the second smoke processing unit 40 arranged directly above the fourth LED 66 is transmitted at the transmittance shown in FIG. 8, while passing through the second smoke processing unit 40. All the light transmitted outside the range of the first smoke processing unit 38 is transmitted. The light transmitted through the second smoke layer 36 is transmitted through the diffusion layer 34, the first smoke layer 32, and the ECO display unit 28 of the base layer 18, and the ECO display unit 28 is lit in pure green color. At this time, the gradation display unit 30 of the ECO display unit 28 is lit with a gradation that becomes darker as the distance from the central "ECO" character in the left-right direction increases.

According to this embodiment, the following actions and effects are exhibited.
The display device 10 of the present embodiment is one of a base layer 18 in which display information 20 configured by using at least one of a character and a design is transparently displayed, and a member which is located under the base layer 18 and has transparency. A display device 10 including a label 12 including a first smoke layer 32 to which a portion is smoked, and a third LED (light source) 64 provided below the label 12. The range of smoke processing in the smoke layer 32 of 1 is a range that overlaps a part of the display information 20 in a plan view and is a range directly above the third LED (light source) 64.

According to the present embodiment, the smoke processing range of the first smoke layer 32 is a range that overlaps a part of the display information 20 in a plan view and is a range directly above the third LED (light source) 64. Therefore, among the display information, the brightness of the display information 20 directly above the third LED (light source) 64 is suppressed, and the brightness of the display information 20 not directly above the display information 20 is not suppressed. As a result, it is possible to reduce the unevenness of the overall brightness of the display information 20 without increasing the number of the third LEDs (light sources) 64, and the uneven brightness is not extremely reduced. The brightness is well-balanced.

Further, the label 12 may be configured to include a diffusion layer 34 for diffusing the light of the third LED (light source) 64 between the base layer 18 and the first smoke layer 32.

By providing the diffusion layer 34, the light of the third LED (light source) 64 is diffused, so that the overall brightness of the display information 20 can be made more uniform.

Further, the label 12 may be configured to include a second smoke layer 36 in which smoke treatment is applied between the base layer 18 and the diffusion layer 34 at least in a range overlapping with the display information 20 in a plan view.

By providing the second smoke layer 36 between the base layer 18 and the diffusion layer 34, the display information of the base layer 18 is blacked out when the third LED (light source) 64 does not emit light. Therefore, the display information 20 can be made invisible.

Further, the transmittance of the wavelength of 440 nanometers to 635 nanometers in the smoke-treated range of the first smoke layer 32 may be in the range of 44.1% to 48.0%. good.

By setting the transmittance of the first smoke layer 32 within the above range, the overall brightness of the display information 20 can be made more uniform.

Further, the smoke processing range in the first smoke layer 32 may be in the range of 34.5% to 50% with respect to the display range of the display information 20 in a plan view.

By setting the smoke processing range of the first smoke layer 32 within the above range, the overall brightness of the display information 20 can be made more uniform.

Further, the storage 1 is provided with a display device 10 and capable of performing a defrosting operation for removing frost adhering to the inside of the storage, and the display device 10 is a third storage unit capable of performing a defrosting operation. The LED (light source) 64 may be configured to emit light.

Generally, since the defrosting operation is performed multiple times a day at predetermined intervals, the third LED (light source) 64 is frequently emitted to notify the user that the defrosting operation is being performed. There is a need. Therefore, by using the display device 10 having the above configuration, the number of the third LED (light source) 64 can be reduced, which can contribute to cost reduction and can also reduce power consumption.

<Other embodiments>
The present invention is not limited to the embodiments described above and the drawings, and for example, the following embodiments are also included in the technical scope of the present invention.
(1) In the present embodiment, the third LED 64 is configured to be an LED having a pure green light emitting color, but may be an LED having another light source color, and may be an LED other than an LED such as a miniature bulb. A light source may be used.
(2) Although the display device 10 of the present embodiment is used for the storage 1, it may be applied to a product other than the storage 1 (for example, a hot / cold cart or the like).

1 ... Storage 10 ... Display device 12 ... Label 18 ... Base layer 20 ... Display information 32 ... First smoke layer 34 ... Diffusion layer 36 ... Second smoke layer 64 ... Third LED (light source)

Claims (6)

A first base layer in which display information composed of at least one of a character and a pattern is transparently displayed, and a first portion of a transparent member located below the base layer and subjected to smoke treatment. With a smoke layer, with a label,
A display device comprising a light source provided below the label.
The range of smoke processing in the first smoke layer is a range that overlaps a part of the display information in a plan view and is a range directly above the light source.
The label is a display device including a second smoke layer between the base layer and the first smoke layer, which is smoked at least in a range overlapping with the display information in a plan view . The display device according to claim 1, wherein the label includes a diffusion layer for diffusing the light of the light source between the base layer and the first smoke layer. The display device according to claim 2 , wherein the diffusion layer is provided between the first smoke layer and the second smoke layer . According to claim 1, the transmittance of a wavelength of 440 nanometers to 635 nanometers in the smoke-treated range of the first smoke layer is in the range of 44.1% to 48.0%. The display device according to any one of items 3. The range of the smoke treatment in the first smoke layer is any one of claims 1 to 4, which is within the range of 34.5% to 50% with respect to the display range of the display information in a plan view. The display device described in the section. A storage that is provided with the display device according to any one of claims 1 to 5 and is capable of performing a defrosting operation for removing frost adhering to the inside of the storage.
The display device is a storage that emits light from the light source during the defrosting operation.

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