DE202016006259U1 - Display device and cooling device - Google Patents

Abstract

Display device (2), in particular for a refrigerated cabinet (3),
wherein the display device (2) comprises a lighting device (12), an at least partially transparent disk (13) and a reflection layer (14),
wherein the reflection layer (14) is arranged on a rear side (13B) of the pane (13),
wherein the illumination device (12) is designed to couple light laterally or via a narrow side (13C, 13D) of the disc (13) into the disc (13) in order to illuminate the reflection layer (14),
characterized,
the display device (2) has a transmission layer (18) between the pane (13) and the reflection layer (14), the refractive index (N18) of the transmission layer (18) being at least as great as the refractive index (N13) of the pane (13). is and / or the transmission layer (18) is translucent, roughened and / or structured, and / or
the display device (2) has an absorption layer (19) at least in the region around the reflection layer (14), the absorption layer (19) absorbing more light than the reflection layer (14) and / or the reflection layer (14) receiving more light than the absorption element reflected.

Description

The present invention relates to a display device, in particular for a refrigerated cabinet, according to the preamble of claim 1 and a cooling device according to the preamble of claim 17.

The term "display device" is to be understood in the present invention preferably a constructive device which is designed for optical signaling or visualization of - in particular static - information. A display device according to the present invention is in particular a panel, particularly preferably a light panel, a plate, sticker, a screen, a sign or other support for characters or information. In particular, a display device in the context of the present invention is adapted to indicate the goods in a refrigerated cabinet or to visualize information about the goods in a refrigerated cabinet.

The term "refrigerated cabinets" in the present invention is preferably to be understood as a constructive device which is designed to temper articles or goods, preferably refrigerated goods, such as meat and / or dairy products, in a goods or refrigerated space or to cool and / or present. Refrigerated cabinets in the context of the present invention are in particular refrigerated counters, freezer cabinets and / or refrigerated shelves, in particular wall refrigerated shelves and / or container refrigerated shelves, and / or refrigerators. Preferably, refrigeration units are set up vertically and / or have refrigerated cabinets at least substantially vertical or horizontal access opening to the refrigerator.

The present invention has for its object to provide a display device for a refrigerated cabinet and a cooling device with a display device and a refrigerated cabinet, creating a simple, inexpensive and / or clear visualization of information and / or a safe, simple, fast and / or cost-effective installation the display device or the cooling device is enabled or supported.

The above object is achieved by a display device according to claim 1 or a cooling device according to claim 17. Advantageous developments are the subject of the dependent claims.

The proposed display device preferably has a lighting device, a preferably at least partially translucent, in particular transparent, disc and a reflective or luminescent layer for displaying or visualizing information, preferably wherein the reflective layer on a rear side or a viewer side facing away from the disc is arranged.

One aspect of the present invention resides in that the display device has a transmission layer between the disk and the reflection layer, wherein the calculation index of the transmission layer is at least as large as the calculation index of the disk and / or the transmission layer is adapted to transmit light from the disk to the disk To deflect reflection layer or to break or disengage from the disc and / or to reduce the angle of incidence to the reflection layer, in particular such that the reflection of the light on the back of the disc or at the transition from the disc to the transmission layer reduces and / or an improved, in particular homogeneous, illumination of the reflection layer is made possible.

Preferably, the transmission layer is translucent, roughened or structured, in particular on the side facing away from the pane or facing the reflection layer, and / or designed to scatter incident light, in particular in the direction of the reflection layer, in particular in such a way that the reflection layer is homogeneously illuminated becomes.

The illumination device is preferably designed to couple light into the pane, in particular in order to illuminate the reflection layer, preferably indirectly or indirectly or via the pane. Preferably, the illumination device is arranged laterally to the pane, in the installed state of the display device preferably directly below the pane, in particular in such a way that light is radiated or coupled into a (lower) narrow side of the pane.

The disk is preferably designed to guide the light generated by the illumination device or as an optical waveguide. The transmission layer makes it possible, in particular, to decouple the light coupled into the pane in this way in the direction of the reflection layer in order to illuminate the reflection layer.

The term "illumination device" in the context of the present invention is preferably to be understood as meaning a constructive device which is designed to emit electromagnetic radiation, in particular light, preferably in the visible range or with one or more wavelengths between 300 nm to 180 nm ,

Particularly preferably, the illumination device is designed to generate a diffused light and / or in the disc, preferably in or via a narrow side of the disc, couple.

For the purposes of the present invention, a lighting device preferably has a light source, in particular an electrical light-emitting means, particularly preferably one or more, in particular a row of, light-emitting diodes as light source or lighting means.

An illumination device in the sense of the present invention is in particular an elongate, flexible and / or elastic device, preferably wherein the light source or the light sources, in particular light emitting diodes, are arranged along a longitudinal axis of the illumination device - in particular uniformly and / or equidistant. In a particularly preferred embodiment, a lighting device in the sense of the present invention is a light string or a light tube, in particular with a plurality of light-emitting diodes.

According to a further, independently realizable aspect of the present invention, the display device has a - preferably black - absorption layer, preferably wherein the reflection layer between the disc and the absorption layer is arranged and / or the absorption layer has a greater degree of absorption and / or a smaller reflectance than the Reflective layer has. In this way, a particularly clear illumination of the reflection layer or a high-contrast visualization is made possible and / or possibly disturbing scattered light is reduced or absorbed.

A proposed cooling device preferably has a cooling cabinet and at least one such display device, preferably wherein the display device is arranged in the installed state on the refrigerator or above the cabinet. In this way, corresponding advantages are realized.

Another, independently realizable aspect of the present invention provides a use of such a display device for a refrigerated cabinet. In this way, corresponding advantages can also be achieved in practice.

The above-mentioned aspects and features of the present invention as well as the aspects and features of the present invention resulting from the claims and the following description can basically be implemented independently of one another, but also in any desired combination.

Further advantages, features, characteristics and aspect of the present invention will become apparent from the claims and the following description of a preferred embodiment with reference to the drawing. It shows:

1 a perspective view of a proposed cooling device with a refrigerated cabinet and a proposed display device;

2 a schematic side view of the display device according to 1 ; and

3 a schematic representation of the geometric shape of a light beam in the display device.

In the partly not to scale, only schematic figures the same reference numerals are used for the same, similar or similar components and components, with corresponding or comparable properties and advantages are achieved, even if a repeated description is omitted.

1 shows a proposed cooling device 1 , The cooling device 1 preferably has a proposed display device 2 and a refrigerated cabinet 3 on.

The cooling device 1 or the refrigerated cabinet 3 preferably has a base body 4 and / or a door 5 on, preferably wherein the basic body 4 and the door 5 a refrigerator 6 limit or form.

In the illustrated embodiment, the cooling device is 1 or the refrigerated cabinet 3 preferably at least substantially vertically positioned and / or has the cooling device 1 or the refrigerated cabinet 3 a vertical access opening to the refrigerator 6 on. Here, however, other solutions are possible, especially where the cooling device 1 or the refrigerated cabinet 3 has a horizontal access opening or is obviously formed from above.

Preferably, the cooling device 1 or the refrigerated cabinet 3 , in particular the basic body 4 , a headboard 7 , a foot part 8th , a back wall 9 and / or one or more side panels 10 on.

The headboard 7 is preferably at least substantially parallel to the foot part 8th and / or orthogonal to the back wall 9 and / or the door 5 arranged.

In particular, / is the header 7 and / or footboard 8th oriented at least substantially horizontally.

The door 5 , the back wall 9 and / or the side panel 10 are / is preferably oriented at least substantially vertically.

Particularly preferred form or limit the door 5 , the headboard 7 , the foot part 8th , the back wall 9 and / or the side panel 10 the refrigerator 6 ,

The cooling device 1 or the refrigerated cabinet 3 is preferably adapted to goods (not shown) in the refrigerator 6 store, cool and / or present.

Particularly preferably, the cooling device 1 or the refrigerated cabinet 3 one or more shelves 11 on, which are designed for filing and / or presentation of the goods to be cooled, preferably wherein the shelves 11 at least substantially parallel to the head part 7 or foot part 8th and / or at least substantially horizontally aligned or in the cold room 6 protrude.

Preferably, the display device is 2 with the refrigerator 3 connectable or on the refrigerator 3 , in particular the main body 4 and / or the headboard 7 , attachable.

As already explained, the display device is 2 for the visualization or presentation of information about the goods of the cooling device 1 or the cooling cabinet 3 educated. Particularly preferred is the display device 2 as an information carrier, shield, illuminated panel or the like.

The display device 2 is preferably in the installed state on the refrigerator 3 or basic body 4 , in particular the head part 7 , arranged or attached. Particularly preferred is the display device 2 above the refrigerator 6 arranged.

Preferably, the display device is 2 at least substantially flush with the end face of the head part 7 and / or flush with the door 5 arranged and / or lie the door 5 , the face of the headboard 7 and the main extension plane of the display device 2 in a common plane.

In an alternative embodiment (not shown), the display device is preferably in the head part 7 , in particular the end face of the head part 7 , integrated and / or forms the display device 2 the end face of the head part 7 ,

In a further, particularly preferred embodiment (not shown), the display device 2 preferably in the door 5 and / or the side panel 10 integrated and / or forms the display device 2 the door 5 and / or the side panel 10 ,

2 shows a schematic side view of the display device 2 ,

The display device 2 preferably has a lighting device 12 , a disk 13 , a reflection or luminescent layer 14 and / or a holder 15 on.

The disc 13 is preferably formed flat or plate-shaped. In particular, the disc faces 13 a front or a viewer of the display device 2 facing flat side, in the following front 13A called, and a rear or a viewer of the display device 2 opposite flat side, in the following back 13B called, up.

Preferably, the disc 13 in a front view on the front 13A at least substantially rectangular, as in 1 shown.

Preferably, the disc has 13 laterally or in the edge region more, here four, edges or narrow sides, in particular one in the installed state of the display device 2 lower edge or narrow side 13C and / or in the installed state of the display device 2 upper edge or narrow side 13D , preferably with the edges or narrow sides 13C . 13D orthogonal to the front 13A or back 13B are aligned. Preferably, the narrow sides form 13C . 13D (Each) an edge of the particular flat disc 13 ,

The disc 13 is preferably at least partially transparent and / or made of glass, in particular white glass and / or toughened safety glass, or made of plastic, in particular polymethyl methacrylate or polycarbonate.

Preferably, the disc 13 in the edge region, in particular exclusively on one side, held or stored, in particular clamped.

In particular, the holder 15 for - particularly preferably screwless - holding the disc 13 and / or for attachment of the disc 13 on the refrigerator 3 , in particular the main body 4 , particularly preferably the head part 7 , educated.

Preferably, the holder 15 a - particularly preferably in cross-section at least substantially U-shaped - profile or is formed thereby, preferably wherein the disc 13 at least partially in the holder at the edge 15 or taken the profile, in particular clamped, is.

Preferably, the disc 13 in the installed state of the display device 2 held down or stored, in particular clamped, and / or is the holder 15 in the installed state of the display device 2 below the disc 13 arranged. Here, however, other solutions are possible, especially where the disc 13 additionally or alternatively held or stored laterally or above.

By preferably screwless mounting of the disc 13 is a particularly fast, inexpensive and / or simple installation of the cooling device 1 or the display device 2 possible. In addition, a quick, inexpensive and / or easy disc change 13 allows or supports, for example, with another disc 13 to refer to other goods.

The lighting device 12 preferably has one or more electric bulbs 16 which are adapted to generate and emit light. Particularly preferably, the illumination device 12 several light-emitting diodes as lighting means 16 on. In particular, the lighting device 12 oblong and / or as a light string or light tube with multiple bulbs 16 educated.

The lighting device 12 is preferably adapted to the reflection layer 14 - Especially indirectly or indirectly or on the disc 13 - to illuminate, as will be explained in more detail below.

The lighting device 12 is in the installed state of the display device 2 preferably below the disc 13 arranged, in particular such that light from below into the disc 13 can be coupled or the reflection layer 14 illuminated from below.

Additionally or alternatively, the or a further illumination device 12 in the installed state of the display device 2 laterally and / or above the disc 13 arranged, in particular such that light from the side and / or from above into the disc 13 einkoppelbar and / or the reflection layer 14 can be illuminated laterally and / or from above.

The lighting device is very particularly preferred 12 in the holder 15 arranged or integrated in this, as in 2 shown.

The lighting device 12 is preferably adapted to light in the disc 13 , Particularly preferably one of the narrow sides, in particular the lower narrow side 13C , the disc 13 to couple. In particular, the lighting device 12 so laterally to the disc 13 arranged that light over one of the narrow sides, in particular the lower narrow side 13C the disc 13 , into the disk 13 is coupled.

In a particularly preferred embodiment, the lighting device 12 configured to generate diffused light, and / or is the illumination device 12 aligned such that light obliquely over one of the narrow sides, in particular the lower narrow side 13C , into the disk 13 is coupled. In this way, the proportion of light is reduced, on the opposite narrow side, in particular the upper narrow side 13D , exits and therefore not to illuminate the reflective layer 14 can be used.

Preferably, the display device 2 one or more reflectors 17 on, preferably wherein the reflector 17 or the reflectors 17 is designed to or are laterally from the disc 13 or from the narrow sides of the disc 13 Reflecting light to reflect, in particular such that this again in the disc 13 is coupled.

Preferably, the lighting device 12 and / or the holder 15 a (first) reflector 17 on, preferably wherein the reflector 17 in the installed state of the display device 2 laterally and / or below the bulb 16 or the light source 16 is arranged, in particular light emitted laterally or down to the disc 13 , in particular the lower narrow side 13C , to reflect.

Additionally or alternatively, a (further or second) reflector 17 on the upper narrow side 13D and / or the lateral narrow sides arranged or provided. In the illustrated embodiment, the display device 2 one on the upper narrow side 13D attached reflector 17 on, especially from the upper narrow side 13D escaping light back to the disc 13 to reflect. In this way, the efficiency of the display device can be increased.

The reflection layer 14 is preferably on the back 13D the disc 13 arranged or with the back 13B the disc 13 - especially indirectly - connected.

The reflection layer 14 is preferably non-positively and or materially, in particular by gluing, with the disc 13 , especially the back 13B the disc 13 , connected.

Preferably, the reflection layer 14 trained to through the back 13B the disc 13 Reflecting light to reflect, in particular to the front or to the front 13A , especially preferably such that a viewer the reflected light or the visualized in this way information on the front 13A the disc 13 can perceive. The reflection layer 14 is thus in a front view of the display device 2 or the disc 13 behind the disc 13 arranged.

Preferably, the reflection layer 14 formed by a film, printing, panel and / or plate and / or has the reflection layer 14 at least one character, for example a letter or a sequence of letters, or forms the reflection layer 14 at least one character, in particular a letter or a sequence of letters.

The cooling device 1 or display device 2 preferably has a transmission layer 18 preferably, wherein the transmission layer 18 between the disc 13 and the reflective layer 14 is arranged.

The transmission layer 18 is preferably exclusively in the region of the reflection layer 14 provided and / or directly with the reflective layer 14 and / or the disc 13 connected.

The transmission layer 18 is preferably adapted to light from the disc 13 decouple and / or from the disc 13 , especially the back 13B the disc 13 to transmit emerging light or to the reflection layer 14 to lead.

Preferably, the reflection layer 14 by means of the transmission layer 18 cohesively with the disc 13 connected and / or is the transmission layer 18 formed by adhesive, in particular polyacrylate, or formed as an adhesive layer.

Preferably, the transmission layer 18 designed to reflect the reflection of the light on the back 13B the disc 13 or at the interface G between the disc 13 and the transmission layer 18 to reduce and / or out of the disc 13 , especially the back 13b , Exiting light to the reflection layer 14 to steer or break, in particular such that the angle of incidence of the light or a light beam on the reflection layer 14 compared to a direct connection between the disc 13 and the reflective layer 14 gets smaller.

3 shows a schematic side view of the display device 2 to illustrate the geometric course of a light beam.

Preferably, the transmission layer 18 a refractive index N18 which is at least as large as the refractive index N13 of the disc 13 is. In particular, the transmission layer 18 optically at least as dense as, more preferably denser than, the disc 13 ,

The refractive index N is a preferably dimensionless physical quantity or material property. The refractive index N preferably indicates the ratio of the speed of light in vacuum C0 to the speed of light in a medium CM: N = C0 / CM

For the transition between the disc 13 and the transmission layer 18 surrendered: N18 / N13 = sin (α) / sin (β), wherein the (first) angle α of the angle included between the incident light beam and a perpendicular L perpendicular to the interface G and the (second) angle β between that in the transmission layer 18 transmitted light beam and the Lot L included angle is.

Since the refractive index N18 is greater than the refractive index N14, it follows that the (second) angle β is smaller than the (first) angle α or the light at the interface G between the disc 13 and the transmission layer 18 to the reflection layer 14 or the solder L is broken. A light beam is consequently deflected at the interface G in such a way that it continues to run against the solder L at the smaller (second) angle β. In this way, an improved reflection of the light at the reflection layer 14 allows.

Preferably, the refractive index is N13 of the disc 13 greater than 1.3 or 1.35, in particular greater than 1.40 or 1.45, and / or less than 2.20 or 2.00, more preferably less than 1.80 or 1.60, in particular less than 1 , 50 or 1.49.

Preferably, the refractive index is N18 of the transmission layer 18 greater than 1.40 or 1.45, more preferably greater than 1.48 or 1.49, and / or less than 4.00 or 3.50, more preferably less than 3.00 or 2.00.

The transmission layer 18 is preferably at least partially translucent and / or - in particular on the disc 13 opposite side - roughened or structured, in particular such that the reflection layer 14 uniformly or homogeneously illuminated.

In particular, the transmission layer 18 designed to light off the disc 13 decouple and / or the disc 13 respectively. back 13B exiting or outcoupled light in the direction of the reflection layer 14 to scatter. In this way, a particularly good decoupling of the in the disc 13 coupled light in the region of the reflection layer 14 allows or guarantees.

The transmission layer 18 preferably has a thickness of less than 2 mm or 1 mm, more preferably less than 0.8 mm or 0.5 mm, in particular less than 0.3 mm or 0.01 mm.

Preferably, the reflection layer 14 thicker than the transmission layer 18 formed, more preferably by more than twice or three times.

In particular, the reflection layer 14 a thickness of more than 0.01 mm or 0.03 mm, more preferably more than 0.05 mm or 0.08 mm, in particular more than 0.1 mm.

The reflection layer 14 is preferably made of plastic, in particular polyvinyl chloride, and at least partially opaque or translucent.

Preferably, the cooling device 1 or display device 2 an absorption layer 19 on, preferably wherein the absorption layer 19 to absorb from the disk 13 , especially the back 13B , emergent or decoupled light is formed.

The absorption layer 19 is preferably in a front view of the display device 2 or disc 13 behind the reflection layer 14 and / or the disc 13 arranged. In particular, the reflection layer 14 between the absorption layer 19 and the transmission layer 18 arranged.

Preferably, the surface of the absorption layer 19 larger than the area of the reflection layer 14 and / or corresponds to the area of the absorption layer 19 at least essentially the surface of the disc 13 , in particular such that the absorption layer 19 the entire back 13B the disc 13 covered.

Preferably, the absorption layer 19 at least in sections and / or in the edge region of the pane 13 and / or in an area outside the reflective layer 14 directly with the disc 13 connected, as in 2 shown.

The absorption layer 19 is preferably formed by a - especially black - film, printing, plate and / or plate.

Preferably, the absorption layer 19 a greater degree of absorption than the reflective layer 14 and / or transmission layer 18 and / or absorbs the absorption layer 19 more light than the reflective layer 14 and / or transmission layer 18 , In this way, any stray light, in particular the next to the reflective layer 14 from the disc 13 leaking light, absorbed, and readability of the display device 2 improved.

The degree of absorption of the absorption layer is preferably 19 more than 0.5 or 0.6, more preferably more than 0.7 or 0.8, in particular more than 0.9 or 0.95.

The degree of absorption of the reflection layer is preferably 14 less than 0.5 or 0.4, more preferably less than 0.3 or 0.2, especially less than 0.1.

Preferably, the reflectance of the reflective layer is more than 0.5 or 0.6, more preferably more than 0.7 or 0.8, in particular more than 0.9.

Preferably, the transmittance of the transmission layer 18 more than 0.5 or 0.6, more preferably more than 0.7 or 0.8, in particular more than 0.9 or 0.95.

Individual aspects and features of the proposed invention can be implemented independently of each other, but also in any combination.

LIST OF REFERENCE NUMBERS

1

cooler

2

display device

3

refrigeration cabinets

4

body

5

door

6

refrigerator

7

headboard

8th

footboard

9

rear wall

10

side panel

11

shelves

12

lighting device

13

disc

13A

front

13B

back

13C

lower narrow side

13D

upper narrow side

14

reflective layer

15

bracket

16

Lamp

17

reflector

18

transmission layer

19

Absorption layer first angle

β

second angle

G

interface

L

solder

N

refractive index

Claims (18)

Display device ( 2 ), in particular for refrigerated cabinets ( 3 ), wherein the display device ( 2 ) a lighting device ( 12 ), an at least partially translucent disc ( 13 ) and a reflection layer ( 14 ), wherein the reflection layer ( 14 ) on a back side ( 13B ) of the disc ( 13 ), wherein the illumination device ( 12 ) is adapted to light on the side or via a narrow side ( 13C . 13D ) of the disc ( 13 ) in the disc ( 13 ) to the reflective layer ( 14 ), characterized in that the display device ( 2 ) a transmission layer ( 18 ) between the disc ( 13 ) and the reflection layer ( 14 ), wherein the refractive index (N18) of the transmission layer ( 18 ) at least as large as the refractive index (N13) of the disc ( 13 ) and / or the transmission layer ( 18 ) is translucent, roughened and / or structured, and / or that the display device ( 2 ) at least in the region around the reflection layer ( 14 ) an absorption layer ( 19 ), wherein the absorption layer ( 19 ) more light than the reflection layer ( 14 ) and / or the reflective layer ( 14 ) reflects more light than the absorption element. Display device according to claim 1, characterized in that the illumination device ( 12 ) one or more, in particular a number of, bulbs ( 16 ), in particular light-emitting diodes, has or is formed thereby. Display device according to claim 1 or 2, characterized in that the illumination device ( 12 ) is aligned such that light obliquely and / or over the narrow side ( 13C . 13D ) in the disc ( 13 ) can be coupled or coupled. Display device according to one of the preceding claims, characterized in that the illumination device ( 12 ) in the installed state of the display device ( 2 ) below the disc ( 13 ) is arranged and / or is adapted to light over a lower narrow side ( 13C ) in the disc ( 13 ). Display device according to one of the preceding claims, characterized in that the display device ( 2 ) at least one reflector ( 17 ), preferably wherein the reflector ( 17 ) on one of the narrow sides ( 13C . 13D ) of the disc ( 13 ), in particular that of the illumination device ( 12 ) opposite narrow side ( 13C . 13D ) is arranged, particularly preferably around the side of the disc ( 13 ) to reflect exiting light. Display device according to one of the preceding claims, characterized in that the disc ( 13 ) on one side, preferably in the installed state of the display device ( 2 ) down, held or stored, in particular clamped, is. Display device according to one of the preceding claims, characterized in that the display device ( 2 ) a holder ( 15 ) for holding the disc ( 13 ), preferably wherein the holder ( 15 ) is formed as - particularly preferably at least substantially U-shaped - profile and / or the disc ( 13 ) in the holder ( 15 ) - particularly preferably screwless - is clamped. Display device according to claim 7, characterized in that the illumination device ( 12 ) in the holder ( 15 ) is arranged or integrated and / or the holder ( 15 ) a reflector ( 17 ) for the lighting device ( 12 ) or the light source ( 16 ), preferably wherein the reflector ( 17 ) in the installed state of the display device ( 2 ) below the illumination device ( 12 ) or of the illuminant ( 16 ) is arranged. Display device according to claim 7 or 8, characterized in that the holder ( 15 ) in the installed state of the display device ( 2 ) is arranged below and / or the disc ( 13 ) from below. Display device according to one of the preceding claims, characterized in that the disc ( 13 ) made of glass, in particular white glass and / or toughened safety glass, or of plastic, in particular polymethyl methacrylate or polycarbonate. Display device according to one of the preceding claims, characterized in that the reflection layer ( 14 ) is formed by a film, printing, panel and / or plate, preferably wherein the reflective layer ( 14 ) has or forms at least one character. Display device according to one of the preceding claims, characterized in that the reflection layer ( 14 ) non-positively and / or materially, in particular by gluing, with the disc ( 13 ) connected is. Display device according to one of the preceding claims, characterized in that the reflection layer ( 14 ) by means of the transmission layer ( 18 ) cohesively with the disc ( 13 ) and / or the transmission layer ( 18 ) is formed by adhesive, in particular polyacrylate, or formed as an adhesive layer. Display device according to one of the preceding claims, characterized in that the transmission layer ( 18 ) is adapted to the reflection of the light on the back ( 13B ) of the disc ( 13 ) or at the transition from the disc ( 13 ) to the transmission layer ( 18 ) to reduce light from the disc ( 13 ) in the direction of the reflection layer ( 14 ) and / or to direct or break and / or light to the reflection layer ( 14 ), in particular such that the reflection layer ( 14 ) is illuminated homogeneously. Display device according to one of the preceding claims, characterized in that the absorption layer ( 19 ) is adapted to light the illumination device ( 12 ) and / or that the absorption layer ( 19 ) is formed by a - preferably black - film, printing, plate and / or plate. Display device according to one of the preceding claims, characterized in that the reflection layer ( 14 ) between the disc ( 13 ) and the absorption layer ( 19 ) is arranged and / or that the absorption layer ( 19 ) at least in sections and / or in the edge region of the pane ( 13 ) directly with the disc ( 13 ), in particular glued, is. Cooling device ( 1 ) with a display device ( 2 ) and a refrigerator ( 3 ), characterized in that the display device ( 2 ) is designed according to one of the preceding claims. Cooling device according to claim 17, characterized in that the display device ( 2 ) when installed on the refrigerated cabinets ( 3 ) or above the refrigerated cabinet ( 3 ) is arranged.

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