A cover of an aerosol generating device

Abstract

A cover of an aerosol generating device, comprising : a display assembly comprising an at least in part curved display surface and configured to display a curved area of said display surface in a specific color; a driver unit configured to drive the display to display the specific color in response to receiving a command; a processing unit configured to generate said command; and a first sensor unit configured to obtain color information related to a vicinity of the aerosol generating device, wherein the processing unit is configured to generate said command on the basis of the color information, to identify a dominant color from the color information and to generate said command on the basis of the identified dominant color.

Description

[0001] A cover of an aerosol generating device

[0002] Technical Field

[0003] The present invention generally relates to a cover of an aerosol generating device . More specifically, the present invention relates to a cover of an aerosol generating device displaying a specific color on a display of the cover .

[0004] Technical background

[0005] Recently, use of aerosol generating devices are increasing due to various reasons . In line with increased use of aerosol generating devices , it is also more desired to have an aerosol generating device , a cover of which can be changed . Since the aerosol generating device is often carried with a user and placed together with other belongings of the user, the cover of the aerosol generating device may be damaged . In this case , it may be not practical to use the aerosol generating device further even in case that only the cover is damaged and the device itself works normally .

[0006] Furthermore , since the aerosol generating device is a personal belonging that is frequently used and whose use is easily shown to the others , the user may want a customi zation on the aerosol generation device . Also in this case , it may be desired to change the cover of the aerosol generating device to a different cover with a desired different color etc .

[0007] Also, the user may want to show the aerosol generating device in certain situations and not want to be easily seen to have the aerosol generating device in other situations . Even i f the cover of the aerosol generating device is changeable , it may be still not practical to carry different covers and, change and adapt a cover in each situation .

[0008] Generally, to have a cover which can change its color, a cover with a display configured to change the color may be considered . However, it may be challenging to reali ze such a cover for an aerosol generating device , since aerosol generating devices are typically designed to provide an ergonomic grip which includes curvatures along one or more axes .

[0009] Although there may be some color display applications on curved surfaces , for example a smartphone with a curved display, conventional methods may not be practical for aerosol generating devices due to extensive cost and energy consume . Furthermore , such display is installed on the smartphone and not easily detachable by a user .

[0010] Therefore , there is need to provide a cover of an aerosol generating device which can display and change a color on the cover while reducing burden of changing the cover .

[0011] Summary

[0012] The present invention is defined by the subj ect-matter of independent claims . Preferred embodiments are given by the sub ect-matter of dependent claims . Further examples are provided for facilitating the understanding of the invention .

[0013] According to an embodiment of the present invention, there is provided a cover of an aerosol generating device , comprising : a display assembly comprising an at least in part curved display surface and configured to display a curved area of said display surface in a specific color ; a driver unit configured to drive the display assembly to display the specific color in response to receiving a command; a processing unit configured to generate said command; and a first sensor unit configured to obtain color information related to a vicinity of the aerosol generating device , wherein the processing unit is configured to generate said command on the basis of the color information, to identify a dominant color from the color information and to generate said command on the basis of the identified dominant color .

[0014] According to the present invention, it may be possible to change a color of a cover of an aerosol generating device without changing the cover .

[0015] Brief description of the drawings

[0016] Embodiments of the present invention, which are presented for better understanding the inventive concepts , but which are not to be seen as limiting the invention, will now be described with reference to the figures in which :

[0017] Figure 1 shows schematically a cover according to an embodiment of the present invention displaying different colors ;

[0018] Figure 2 shows schematically a cover according to an embodiment of the present invention when the cover of an aerosol generating device is installed on the aerosol generating device and when the cover is detached from the aerosol generating device ;

[0019] Figure 3 shows schematically a cover of an aerosol generating device according to an embodiment of the present invention and proj ection views of the cover ;

[0020] Figure 4 shows schematically a planar area and a curved area of a cover according to an embodiment of the present invention ; Figure 5 shows schematically a configuration of a display assembly with a curved area according to an embodiment of the present invention ;

[0021] Figure 6 shows a cover according to an embodiment of the present invention displaying a color showing high contrast and a substantially similar color to a color of a vicinity of the aerosol generating device ; and

[0022] Figure 7 (a) and (b) each show schematically an example electronics block diagram of a cover and an aerosol generating device according to an embodiment of the present invention .

[0023] Detailed description

[0024] According to an embodiment of the present invention, a cover of an aerosol generating device comprises a display assembly comprising an at least in part curved display surface and configured to display a curved area of said display surface in a specific color and a driver unit configured to drive the display assembly to display the specific color in response to receiving a command .

[0025] The cover may be an obj ect which lies around the aerosol generating device to form at least an outer surface of the aerosol generating device and thereby protect at least a part of an inside of the aerosol generating device .

[0026] The display assembly may be an as sembly of components and / or modules to display at least brightness , preferably also colors and optionally also patterns on the surface of the display assembly . For example , the display assembly may comprise an active display using emission of lights such as an organic light-emitting diode or electroluminescence display . The display assembly may comprise a passive display such as an electronic paper display . The at least in part curved display surface may mean a surface of the display assembly which is at least partly curved . Curved may mean not flat and / or not planar . The at least in part curved display surface may comprise a planar area or not .

[0027] The color may mean hue , saturation and / or brightness of light visually seen by a user .

[0028] The command may be a command received from outside of the aerosol generating device wirelessly or through a wire connected to the aerosol generating device .

[0029] The command may be generated in the aerosol generating device internally . The command may be generated by a pressing of a button of the aerosol generating device or a trigger triggered by a certain state of the aerosol generating device . The driver unit may be configured to receive the command from the aerosol generating device .

[0030] Once the command is received by the driver unit , the driver unit is configured to drive the display assembly to display a specific color in response to receiving a command . The driver unit and the display assembly may communicate in any appropriate way .

[0031] By displaying the specific color on the cover, it may be possible to reduce the burden of changing the cover of the aerosol generating device .

[0032] As explained above , the display surface may comprise the curved area and the planar area . Figure 4 shows schematically a planar area 11 and a curved area 12 of a cover 1 according to an embodiment of the present invention . In an embodiment , the display assembly may comprise a lens arrangement configured to display the curved area 12 in the specific color . The display assembly may comprise a display . The display may be an electronic component and / or module for radiating light such that , for example , a color is displayed on the display surface of the display assembly .

[0033] In an embodiment , it may not be necessary to place the display below all parts of the surface of the display assembly . For example , the display may be placed only under the planar area 11 and not under the curved area 12 . This configuration may be advantageous for some use cases , for example , when a type of display is not appropriate to be bent to be placed under the curved area 12 and when it is not cost efficient to achieve such an arrangement . In detail , a part of the display assembly with the curved area 12 , that is , a part under the curved area 12 of the display surface may be bent not only at the surface . In other words , since the structure of the part of the display assembly may be bent , that is , curved, a flat display may not be easily placed in the part of the display with the curved display surface .

[0034] In this case , the lens arrangement may be located under the curved area 12 to display the specific color in the curved area 12 where the display is not placed . The lens arrangement may diffract light from an edge of the display under the planar area 11 to the curved area 12 . By having such lens arrangement , it may be possible to display the specific color also in the curved area 12 .

[0035] The lens arrangement may comprise one or more optical lenses . The one or more optical lenses may, as light channels , be configured to at least diffract lights of the part under the planar area 11 to the curved area 12 . By diffracting lights of the part under the planar area 11 to the curved area 12 , lights may be possible to reach wider display surface area . This may be advantageous especially for outer edges of the cover 1 of the aerosol generating device . For example , the outer edges of the cover 1 may be bent with a large curvature to provide ergonomic grip of the aerosol generating device . In such curved area, the display may not be located although the curved area 12 is a part of the cover 1 . Therefore , the lens arrangement may enable displaying the specific color in the curved area 12 .

[0036] The one or more optical lenses may comprise one or more Fresnel lenses . Figure 5 shows schematically a configuration of a display assembly with a curved area according to an embodiment of the present invention . A display 13 and a protection window 14 of the display assembly under the planar area 11 and the curved area 12 , which are shown for a mere illustrative purpose and not be considered to limit the invention, are illustrated . Arrows of the Figure 5 may be understood as light directions .

[0037] Usually, a display 13 may be mounted below a protection window 14 , which is made of , for example , glass , transparent polycarbonate , or another resin . The protection window 14 may be bent to fit the curved area 12 of the display assembly and / or the curvature of the cover 1 . The curvature may result in potential material thickness variation and modify light refractions . Thus , one or more optical lenses may be used to spread more homogeneous light around the protection window bending area .

[0038] With a diverging lens , light can be refracted also at large opening angles , that is , at the edge of the display 13 , and provide the color also on the curved area 12 . However, a generic diverging lens may take a larger volume in space and may not be practical to be used at curved display applications . Fresnel lens , on the contrary, may be physically flatter and adequate to be used for curved display applications . Although the above has been described with an example where the curved area 12 may be located close to the outer edges of the cover 1 of the aerosol generating device , the present invention is not limited thereto . The curved area 12 and the planar area 11 can be located in any part of the cover 1 and in fact , there may be non-continuous curved areas and planar areas .

[0039] In one embodiment , the curved area 12 may be at least around the planar area 11 . Since the planar area 11 may be surrounded by the curved area 12 , it may be easy to place the display 13 at the center of the display assembly . The one or more optical lenses may be located around the part under the planar area 11 to diffract lights to the curved area 12 . In this way, designing the cover 1 may be simplified by placing the display 13 at the center, for example , and the one or more optical lenses around the display 13 .

[0040] In one embodiment , the display surface of the display assembly may be curved along at least two axes . Figure 3 shows schematically a cover of an aerosol generating device according to an embodiment of the present invention and proj ection views of the cover . In Figure 3 , x, y and z axes , which are perpendicular to each other, have been shown with reference to the cover 1 . On the right side , a proj ection Pl along x-axis, that is , an yz-plane is shown . On the below, a proj ection P2 along y-axis , that is , a xz-plane is shown . The cover 1 may be curved also along the y-axis . The cover 1 may be curved to the positive z direction and along at least two axes on a xy-plane . Therefore , by being curved along at least two axes , it may be possible to provide the cover for the aerosol generating device with a round surface . Nevertheless , the at least two axes may not be limited to any axes , for example , axes perpendicular to each other . The display surface of the display assembly may be curved along any at least to axes that are appropriate for the aerosol generating device .

[0041] In one embodiment , the cover 1 may be detachable from the aerosol generating device . In other words , the cover 1 i s configured in a way that the cover 1 and the aerosol generating device is detachably connected and therefore a conventional cover of the aerosol generating device may be changed to the cover 1 according to the embodiment . In this embodiment , the cover 1 of the aerosol generating device and a control unit of the aerosol generating device may communicate in a way that is appropriate for a detachable cover .

[0042] Figure 2 shows schematically a cover according to an embodiment of the present invention when the cover of an aerosol generating device is installed on the aerosol generating device and when the cover is detached from the aerosol generating device .

[0043] As shown in Figure 2 (a) , the cover 1 may be installed on the aerosol generating device 2 . The cover 1 of the aerosol generating device 2 may be , as shown in Figure 2 (b) , detachable from the aerosol generating device 2 .

[0044] When receiving the command from the outside of the aerosol generating device 2 , the command may be received by a communication unit of the aerosol generating device 2 in a way that is appropriate for a detachable cover . Then, the command may be communicated to the cover 1 . The command may be also communicated to the cover 1 in a way that is appropriate for a detachable cover, when the command is generated in the aerosol generating device 2 .

[0045] In one embodiment , the display assembly may comprise an array of pixels and the driver unit may be further configured to drive at least a part of the array of pixels to display a specific element color in response to receiving command .

[0046] According to the embodiment , for example , the display 13 may be an electronic paper display . The array of pixels may refer to an array of pixels of the electronic paper display . The specific element color may refer to a color of , for example , black pigment that is negatively charged or white pigment that is positively charged of a black and white electronic paper display . The specific element color may also refer to a color of colored pigment of a color electronic paper display . The electronic paper display may be understood as an electrophoretic display, EPD .

[0047] In another example , the display 13 may be a light emitting diode , LED, display . The array of pixels may refer to an array of pixels of LEDs . The specific element color may refer to, for example , red and the array of pixels may refer to an array of red LEDs .

[0048] The display assembly may comprise one or more arrays of pixels . In this case , each of the one or more arrays of pixels may display a specific color that is different from each other . For example , the display assembly may comprise a first array of pixels of red LEDs , a second array of pixel s of blue LEDs and a third array of pixels of green LEDs . The display assembly may deliver a desired color by combination of different specific element colors .

[0049] In one embodiment , the display assembly may comprise a plurality of layers configured to display a specific color and the driver unit is further configured to drive at least one layer to display a specific element color in response to receiving the command . As the display assembly may comprise a plurality of layers , the specific color may not be limited to a color of one layer of pixels . Figure 1 shows schematically a cover according to an embodiment of the present invention displaying different colors . As shown in Figure 1 (a) , Figure 1 (b) and Figure 1 ( c) , the cover 1 of the aerosol generating device 2 may be able to display different specific colors .

[0050] In one example , the driver unit may be configured to drive at least the part of the array of pixels in different densities of the pixels to display different colors , for example , different brightnesses .

[0051] For example , the driver unit may be configured to drive only 10 % of evenly distributed pixels of the array of pixels , see Figure 1 (a) . In other examples , the driver unit may be configured to drive 50 % or 90 & of evenly distributed pixels of the array of pixels , see Figure 1 (b) and ( c) . These percentages are merely given as examples for an illustrative purpose .

[0052] Furthermore , the driver unit may be configured to drive at least a part of each of the one or more arrays of pixels to display different colors . In this way, the cover 1 may display different colors different not only in brightness , but also in hue and saturation .

[0053] In this way, the cover 1 may display different colors .

[0054] In an embodiment , the cover 1 may further comprise a processing unit configured to generate the command . Further to the above explained examples , that the command may be received from outside of the aerosol generating device 2 or generated in the aerosol generating device 2 , the command may be generated by the processing unit of the cover 1 .

[0055] For example , the processing unit may receive a data from the aerosol generating unit . The data may be , for example , a charging status of an energy source of the aerosol generating device 2 or a signal indicating that the button of the aerosol generating device 2 is pressed . The processing unit may receive the data and then generate the command .

[0056] Alternatively, the control unit of the aerosol generating device 2 may generate the command and transmit the generated command to the processing unit . In this case , the processing unit may receive the command and instruct the driver unit to drive the display assembly in a specific color .

[0057] When the processing unit is configured to generate the command, the cover 1 may further comprise a first sensor unit configured to obtain color information related to a vicinity of the aerosol generating device 2 , wherein the processing unit may be configured to generate the command on the basis of the color information .

[0058] The first sensor unit may be , for example , a color sensor or a micro camera module . The color information may be a color measured by the first sensor unit .

[0059] Since the cover 1 is at least partly around the aerosol generating device 2 , the first sensor unit of the cover 1 can obtain the color information related to the vicinity of the aerosol generating device 2 . The first sensor unit of the cover 1 can obtain the color information related to a vicinity of the cover 1 as well .

[0060] The processing unit may be configured to generate the command on the basis of the color information . In this case , the processing unit may receive the color information from the first sensor unit and generate the command on the basis of the color information . Therefore , the cover 1 may generate the command without a communication with the aerosol generating device 2 and display the specific color . Alternatively, a sensor unit configured to obtain color information related to a vicinity of the aerosol generating device 2 may be located in the aerosol generating device 2 . In this case , the color information may be communicated to the processing unit of the cover 1 or processed in the aerosol generating device 2 to generate a command to be communicated to the cover 1 .

[0061] Figure 7 (a) and (b) each show schematically an electronics block diagram of a cover and an aerosol generating device according to an embodiment of the present invention . For an illustrative purpose , components of the cover 1 and the aerosol generating device 2 have not been described exhaustively . The skilled person can understand what would be included in the electronics block diagram from the description .

[0062] In one embodiment , as shown in Figure 7 (a) , the aerosol generating device 2 may comprise the first sensor unit 32 . The sensor unit may be configured to obtain color information related to a vicinity of the aerosol generating device 2 .

[0063] In one embodiment , as shown in Figure 7 (b) , the cover 1 may comprise the first sensor unit 31 . The first sensor unit 31 may be configured to obtain color information related to a vicinity of the aerosol generating device 2 . The first sensor unit 32 may be configured to obtain color information related to a vicinity of the cover 1 .

[0064] Figure 7 (a) and (b) are given for a merely illustrative purpose . In an example , the cover 1 may comprise the first sensor unit 31 and the aerosol generating unit 2 may comprise the sensor unit 32 .

[0065] As shown in both Figure 7 (a) and (b) , the cover 1 and the aerosol generating device 2 may communicate through connectors . The connectors may comprise a voltage channel , VDD, a ground channel , GND, and a data bus . The data bus may be used to transmit data from the aerosol generating device 2 to the cover 1 and from the cover 1 to the aerosol generating device 2 .

[0066] In one embodiment , the processing unit may be configured to identify a dominant color from the color information and to generate the command on the basis of the identified dominant color .

[0067] In an example , the processing unit may be configured to generate the command configured to instruct the drive unit to drive the display assembly to display the identified dominant color . Since the cover 1 would display a substantially similar color to the color of the vicinity, the cover 1 may not by easily seen and it may be advantageous for cases when easy detection of the device is not desirable .

[0068] In another example , the processing unit may be configured to generate the command configured to instruct the drive unit to drive the display assembly to display a complementary color of the identified dominant color . The complementary color may be an opposite color on a standard color wheel . Due to their hue opposites , the complementary color may be easily noticeable on a background with the dominant color .

[0069] In yet another example , the processing unit may be configured to generate the command configured to instruct the drive unit to drive the display assembly to display a contrast color of the identified dominant color . The contrast color may be a color differ from the identified dominant color and which shows a high contrast between the contrast color and the identified color . Since the cover 1 would display a color showing high contrast to the color of the vicinity, the cover 1 may be easily seen, and it may be advantageous for cases when easy detection of the device is desirable . For example , it may be useful for users who frequently forget where the aerosol generating device 2 is put or users with vision problems .

[0070] In one embodiment , the processing unit may be configured to identify a dominant color from obtained color information and to generate said command on the basis of the identified dominant color in periodic intervals . For example , the processing unit may be configured to read out the output of the first sensor so as to obtain the color information and to process that color information in order to identify the dominant color in regular intervals , e . g . 30 seconds . The interval may, however, also be variable and may be set by a user in accordance with a desired reaction speed, so as to accommodate for different use cases and scenarios . For example , a user may be in a public space where , e . g . a responsive chameleon behaviour is desirable , whereas such a behaviour is less important at home . Each time a change in the dominant color is detected, a corresponding command can be generated on the basis of the identified dominant color in order to instruct the driver unit to drive the display assembly to display the identified dominant color, a contrast color, or a complementary color as described earlier .

[0071] Figure 6 shows a cover according to an embodiment of the present invention displaying a color showing high contrast and a substantially similar color to a color of a vicinity of the aerosol generating device . As it can be seen, the drive unit may be configured to drive the display assembly to display the complementary color of the identified dominant color, see Figure 6 (a) , or to display the identified dominant color, see Figure 6 (b) .

[0072] The dominant color may be a color measured by the first sensor unit that is dominant in the vicinity, in other words , the dominant color may be a predominant color in the vicinity . For example , if the micro camera module has taken an image where red is at the center and there are some orange spots at the edge of the image , the dominant color may be red .

[0073] In an embodiment , the cover 1 may further comprise a second sensor unit configured to measure a distance of an obj ect in the vicinity of the aerosol generating device 2 and to provide distance information and the processing unit may be configured to identify the dominant color based on the color information related to the obj ect and the distance information .

[0074] For example , when the first sensor unit obtains the color information, there may be more than one colors obtained by the first sensor unit . For example , when an image taken by the micro camera module shows red on a substantial left half of the image and green on a substantial right half of the image , the processing unit may identify either red or green as the dominant color .

[0075] According to the embodiment , the processing unit may identify the dominant color also based on the distance information provided by the second sensor unit . For example , the second sensor unit may have measured a distance of an obj ect on the left half of the image and a distance of another obj ect on the right half of the image . Based on these distances , the processing unit may identify which color between red and green is from an obj ect that is closer to the second sensor unit . In other words , the processing unit may identify the dominant color from the obj ect that is close to the cover 1 and / or the aerosol generating device 2 .

[0076] The second sensor unit may be an infrared distance sensor or a LED Time-of-Flight sensor .

[0077] In an embodiment , the cover 1 may further comprise a button, wherein the driver unit may be configured to receive the command in relation to an operation of the button . The button may be a device that is used to initiate an action . For example , when the button is pressed, the driver unit may be configured to receive the command, that is , pressing of the button, and display the specific color .

[0078] Alternatively, or additionally, the cover 1 may further comprise a switch, therein the driver unit may be configured to receive the command in relation to an operation of the switch . The switch may be a latching device that is used to select between two states . For example , the switch may have a static mode and a color changing mode . While the cover 1 of the cover 1 may not be changed in the static mode , when the switch has been switched to the color changing mode , the processing unit may identify the dominant color and the drive unit may drive the display assembly to display the dominant color .

[0079] In an embodiment , the cover 1 may further comprise an access to a communication unit of the aerosol generating device 2 . The access may be in a wired or wireless way .

[0080] The access may comprise a communication interface to the communication unit of the aerosol generating device 2 . The communication interface may be a hardware interface , for example , a connector and a plurality of pins .

[0081] The communication unit of the aerosol generating device 2 may communicate via the access with the cover 1 . In detail , the communication interface of the access may communicate with the communication unit of the aerosol generating device 2 .

[0082] For example , the processing unit may be configured to generate the command on the basi s of a color selected by a user of a mobile device communicating with the communication unit . The user may use a dedicated application installed on the mobile device to select the color . Once the color is selected by the user, the communication unit of the aerosol generating device 2 and the mobile device may communicate and the selected color may be delivered to the aerosol generating device 2 .

[0083] In one embodiment , the access may further comprise a power interface configured to deliver power to the display assembly and the driver unit . For example , VDD and GND shown in Figure 7 may be the power interface .

[0084] In an embodiment , the display assembly may comprise an organic light emitting diode display . It may be advantageous as the organic light emitting diode is relatively low in cost and can be easily bendable . However, it may consume more energy .

[0085] In another embodiment , the display assembly may comprise an electronic paper display . It may be advantageous as the electronic paper display may be not only low in cost but also consume less power .

[0086] While various embodiments of the present disclosure have been described above , it should be understood that they have been presented by way of example not limitation . It will be apparent to persons skilled in the relevant art ( s ) that various changes in form and detail can be made therein . Thus , the above-described exemplary embodiments are not limiting .

Claims

CLAIMS1 . A cover of an aerosol generating device , comprising : a display assembly comprising an at least in part curved display surface and configured to display a curved area of said display surface in a specific color ; a driver unit configured to drive the display assembly to display the specific color in response to receiving a command; a processing unit configured to generate said command; and a first sensor unit configured to obtain color information related to a vicinity of the aerosol generating device , wherein the processing unit is configured to generate said command on the basis of the color information, to identify a dominant color from the color information and to generate said command on the basis of the identified dominant color .2 . The cover according to claim 1 , wherein the display surface comprises a planar area and the curved area, and the display assembly comprises a lens arrangement configured to display the curved area in the specific color .3 . The cover according to claim 2 , wherein the lens arrangement comprises one or more optical lenses configured to at least diffract lights of the planar area to the curved area .4 . The cover according to claim 3 , wherein the one or more optical lenses comprises one or more Fresnel lenses .5 . The cover according to any one of claims 2 to 4 , wherein the curved area is at least around the planar area .6 . The cover according to any one of claims 1 to 5 , wherein the display surface of the display assembly is curved along at least two axes .7 . The cover according to any one of claims 1 to 6 , wherein the cover is detachable from the aerosol generating device .8 . The cover according to any one of claims 1 to 7 , wherein the display assembly comprises an array of pixels and the driver unit is further configured to drive at least a part of said array of pixels to display a specific element color in response to receiving the command .9 . The cover according to any one of claims 1 to 7 , wherein the display assembly comprises a plurality of layers configured to display a specific color and the driver unit is further configured to drive at least one layer to display a specific element color in response to receiving the command .10 . The cover according to any one of claims 1 to 9 , wherein the processing unit is configured to generate said command on the basis of the identi fied dominant color to instruct the driver unit to drive the display assembly to display the identified dominant color .11 . The cover according to any one of claims 1 to 10 , wherein the processing unit is configured to identify a dominant color from obtained color information and togenerate said command on the basis of the identified dominant color in periodic intervals .12 . The cover according to any one of claims 1 to 11 , further comprising a second sensor unit configured to measure a distance of an obj ect in the vicinity of the aerosol generating device and to provide distance information, wherein the processing unit is configured to identify the dominant color based on the color information related to the obj ect and the distance information .13 . The cover according to any one of claims 1 to 12 , further comprises a button, wherein the driver unit is configured to receive the command in relation to an operation of the button .14 . The cover according to any one of claims 1 to 13 , wherein the driver unit is further configured to receive the command from the aerosol generating device .15 . The cover according to any one of claims 1 to 14 , the cover further comprises an access to a communication unit of the aerosol generating device .16 . The cover according to claim 15 , wherein the access comprises a communication interface to the communication unit of the aerosol generating device .17 . The cover according to claim 15 or 16 , wherein the processing unit is configured to generate said command on the basis of a color selected by a user of a mobile device communicating with the communication unit .18 . The cover according to any one of claims 1 to 17 , wherein the display assembly comprises an organic light emitting diode display .19 . The cover according to any one of claims 1 to 18 , wherein the display assembly comprises an electronic paper display .20 . The cover according to any of claims 15 to 19 , wherein the access comprises a power interface configured to deliver power to the display as sembly and the driver unit .

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