WO2023088327A1 - Dispositif électronique - Google Patents

Dispositif électronique Download PDF

Info

Publication number
WO2023088327A1
WO2023088327A1 PCT/CN2022/132366 CN2022132366W WO2023088327A1 WO 2023088327 A1 WO2023088327 A1 WO 2023088327A1 CN 2022132366 W CN2022132366 W CN 2022132366W WO 2023088327 A1 WO2023088327 A1 WO 2023088327A1
Authority
WO
WIPO (PCT)
Prior art keywords
display screen
accommodating cavity
electronic device
area
lens module
Prior art date
Application number
PCT/CN2022/132366
Other languages
English (en)
Chinese (zh)
Inventor
贾杰
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2023088327A1 publication Critical patent/WO2023088327A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Definitions

  • the present application belongs to the technical field of communication equipment, and in particular relates to an electronic equipment.
  • the purpose of the embodiments of the present application is to provide an electronic device capable of reducing the thickness of the electronic device.
  • An electronic device including a display and camera assembly, wherein:
  • the display screen has a first area and a second area, the camera assembly is set corresponding to the first area, and the second area is an area on the display screen other than the first area;
  • a first accommodating cavity is configured in the display screen, and the first accommodating cavity is arranged correspondingly to the first area;
  • the camera assembly includes a lens module and a photosensitive element, and the lens module is arranged on the In the first accommodating cavity, the photosensitive element is arranged corresponding to the lens module.
  • the camera assembly is set corresponding to the first area on the display screen, for the camera assembly to collect image information.
  • the lens module of the camera assembly is arranged in the first accommodating cavity, under this structural layout, the lens The module is equivalent to being integrated inside the display screen, which avoids the complete overlapping of the camera component and the display screen, thereby achieving the effect of reducing the thickness of the electronic device.
  • FIG. 1 and FIG. 2 are structural schematic diagrams of the first electronic device disclosed in the embodiment of the present application in different working states;
  • FIG. 3 is a schematic structural diagram of a second electronic device disclosed in an embodiment of the present application.
  • 210-lens module 211-first liquid medium, 212-second liquid medium, 213-first electrode, 214-second electrode, 215-insulator, 216-sealing plate, 220-photosensitive element, 221-electricity connectors, 230-filters,
  • an embodiment of the present application provides an electronic device.
  • the electronic device disclosed in the embodiment of the present application includes a display screen 100 and a camera assembly 200 .
  • the display screen 100 is a display functional component of an electronic device, which may be an active matrix organic light emitting diode (Active Matrix/Organic Light Emitting Diode, AMOLED) display screen, an organic light emitting diode (Organic Light Emitting Diode, OLED) display screen , which is not limited in the embodiment of the present application.
  • the camera assembly 200 is an image acquisition functional component of an electronic device.
  • the display screen 100 of the embodiment of the present application has a first area and a second area, and the camera assembly 200 is set corresponding to the first area, so as to collect image information through the first area;
  • the second area is an area on the display screen 100 other than the first area, and the display screen 100 implements a display function through the second area.
  • the first area is a specific area on the display screen 100 dedicated to capturing images, while the second area is all used for displaying the screen of the electronic device.
  • the embodiment of the present application does not limit the layout manner of the first area and the second area, and optionally, the first area may be disposed on the edge of the second area. Meanwhile, the embodiment of the present application does not limit the specific area proportions of the first area and the second area on the display screen 100 .
  • a first accommodating cavity C1 is configured in the display screen 100 , and the first accommodating cavity C1 can provide an accommodating space.
  • the first accommodating cavity C1 is set corresponding to the first area, so that external light can be projected to the first accommodating cavity C1 after entering the display screen 100 through the first area.
  • the first region may be arranged opposite to the first accommodating cavity C1 .
  • This kind of structural layout is relatively simple, easy to process, and facilitates direct projection of external light into the first accommodating cavity C1 .
  • the first accommodating cavity C1 may not be directly opposite to the first area.
  • the electronic device may further include an optical path adjustment device, which can project light after passing through the first area of the display screen 100. To the optical path adjustment component, the optical path of the light is adjusted by the optical path adjustment component, and projected to the first accommodating cavity C1.
  • the camera assembly 200 includes a lens module 210 and a photosensitive element 220 , the lens module 210 is disposed in the first accommodating cavity C1 , and the photosensitive element 220 is disposed corresponding to the lens module 210 .
  • the lens module 210 is the part with the largest volume ratio of the camera assembly 200.
  • it is arranged in the first accommodating cavity C1, which is equivalent to the lens module 210 being integrated Inside the display screen 100 . After the light passes through the lens module 210 , it can be projected onto the photosensitive element 220 , and the photosensitive element 220 processes the image.
  • the camera assembly 200 is stacked with the display screen 100, while the lens module 210 of the camera assembly 200 in the embodiment of the present application is integrated inside the display screen 100, and the display screen
  • the space originally occupied by 100 has been reused, so that the overall space occupied by the camera assembly 200 and the display screen 100 can be undoubtedly reduced, thereby reducing the thickness parameters of the electronic device.
  • the photosensitive element 220 can be selected as CCD (Charge Coupled Device, charge coupled device) or CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor), and the embodiment of the present application does not limit its specific type.
  • the photosensitive element 220 can be electrically connected through the electrical connector 221 , for example, electrically connected to the main board of the electronic device, so as to realize signal interaction.
  • the electrical connector 221 may include a BTB (Board-to-Board, board-to-board) connector.
  • the camera assembly 200 is set corresponding to the first area on the display screen 100 for the camera assembly 200 to collect image information.
  • the lens module 210 is equivalent to being integrated inside the display screen 100, thereby avoiding the complete overlapping of the camera assembly 200 and the display screen 100, thereby achieving the effect of reducing the thickness of the electronic device.
  • the display screen 100 may include a cover plate 110, a polarizer 120, and a substrate 130 arranged in sequence, and the first accommodating cavity C1 may pass through the polarizer 120.
  • the cover plate 110 serves as one side of the outer surface of the display screen 100 , which can play a protective role.
  • the polarizer 120 can play a polarizing role, which changes the polarization direction of the light, thereby ensuring that the display screen 100 can be developed to realize the display function.
  • the first accommodating cavity C1 is opened in the polarizer 120, that is, the polarizer 120 provides an accommodating space for the lens module 210, so that the lens module 210 is integrated inside the display screen 100, and further Realize the thinning of electronic equipment.
  • the pole screen solution includes a multi-layer structure such as a cover plate 110, an adhesive layer, an upper glass layer, and a lower glass layer.
  • the deviations of parameters such as flatness and uniformity between layers are continuously superimposed, which will affect the The propagation path of the incident light causes interference, which leads to the deterioration of the imaging quality of the camera.
  • the cover plate 110 In the display screen 100 in this embodiment, on the premise that the normal imaging of the camera assembly 200 is realized, since the polarizer 120 is penetrated, the cover plate 110.
  • the display screen 100 of the embodiment of the present application may further include an adhesive layer 140, and the cover plate 110 and the polarizer 120 are connected through the adhesive layer 140; the first accommodating cavity C1 also penetrates the adhesive layer 140. Specifically, with such an arrangement, the first accommodating cavity C1 is opened in the polarizer 120 and the adhesive layer 140, so that the adjustable range of the accommodating space of the first accommodating cavity C1 is larger, and can accommodate A more complex and larger lens module 210 .
  • the adhesive layer 140 can be of various types, such as optical clear adhesive (OCA) and so on. It should be noted that the adhesive layer 140 will reduce the amount of transmitted light, even if a special optical glue is used, it will still prevent part of the light from passing through, which will reduce the intensity of the light.
  • OCA optical clear adhesive
  • the first accommodation cavity C1 penetrates the adhesive layer 140 , and the light is directly projected into the first accommodation cavity C1 when propagating, so that the adhesive layer 140 prevents the light from passing through.
  • the adhesive layer will still deepen the negative impact of the deviation of the interlayer structure on the optical path of the light.
  • the first accommodating cavity C1 in the embodiment of the present application also penetrates the adhesive layer 140, which will inevitably reduce the adhesion.
  • the deviation brought by the layer 140 can further optimize the imaging quality.
  • the specific type of the lens module 210 is not limited, and a conventional lens may be used.
  • the lens module 210 of the embodiment of the present application may be a liquid lens, and the lens module 210 includes a first liquid medium 211, a second liquid medium 212 and a sealed cavity, The first liquid medium 211 and the second liquid medium 212 are immiscible, and both are arranged in a sealed cavity; the liquid lens is configured to change the medium between the first liquid medium 211 and the second liquid medium 212 under the action of voltage The shape of the face.
  • the sealed cavity provides a closed storage environment for the first liquid medium 211 and the second liquid medium 212 , which can prevent the two liquid mediums from leaking, so that the liquid lens can work normally. It is because the first liquid medium 211 and the second liquid medium 212 are immiscible that a medium surface, that is, an interface, can be formed between them. According to the electrowetting effect, when the liquid lens is subjected to voltage, the shapes of the first liquid medium 211 and the second liquid medium 212 will change, and then the shape of the medium surface will be changed to adjust the curvature, thereby realizing the focal length of the liquid lens adjustment.
  • the first liquid medium 211 can be the electrolytic solution that can be conductive, such as sodium sulfate solution, and the second liquid medium 212 can be oily nonpolar solution, such as brominated dodecane solution;
  • the first liquid medium 211 and the second liquid medium The specific type of 212 is not limited in this embodiment of the application.
  • FIG. 1 and Figure 2 it shows the schematic diagram of the structure of the first electronic device under different working conditions, the curvature is changed by changing the shape of the medium surface of the two liquid media, and the convex direction of the medium surface is specifically changed , in this case, the optical path of the light is adjusted (as shown by the dotted line in Fig. 1 and Fig. 2 ), thereby realizing the adjustment of the focal length of the liquid lens.
  • the lens module 210 can include a first electrode 213, a second electrode 214, an insulating member 215 and a sealing plate 216, the first electrode 213 is a cylindrical structural member, and the two ends of the first electrode 213 along its axial direction are respectively connected to the substrate 130 Sealing fit with the sealing plate 216 to define a sealing chamber; the second electrode 214 is connected to the first electrode 213 through the insulating member 215 .
  • the interior of the cylindrical first electrode 213 may provide an accommodating space for accommodating the first liquid medium 211 and the second liquid medium 212 .
  • the substrate 130 can play a sealing role, which can reduce the need to install a sealing plate 216 on this side, thereby reducing the use of materials, saving space, and reducing the number of electronic devices to a certain extent. At the same time, this also facilitates the electrical connection between the first electrode 213 and the substrate 130 .
  • the display screen 100 may further include a light source assembly 150, a second accommodating cavity C2 is constructed in the substrate 130, and the light source assembly 150 is disposed in the second accommodating cavity C2. placed in the cavity C2 ; in the direction perpendicular to the display screen 100 , the second accommodating cavity C2 and the first accommodating cavity C1 are dislocated.
  • the light source assembly 150 is used to emit light so that the display screen 100 can smoothly realize the display function.
  • the light source assembly 150 is integrated in the substrate 130, which is also beneficial to improve the lightness and thinness of the electronic device.
  • the first accommodating cavity C1 and the second accommodating cavity C2 are arranged in a misaligned position, the light emitted by the light source assembly 150 is prevented from being projected into the first accommodating cavity C1, which affects the imaging of the external light acquired by the camera assembly 200. process.
  • the light source assembly 150 may be an RGB light source assembly 150 .
  • the second accommodating cavity C2 of the embodiment of the present application may be filled with inert gas.
  • the inert gas can protect the light source assembly 150 , which is beneficial to prolong the service life of the display screen 100 .
  • the light source assembly 150 may include a luminous body 151 and an encapsulation layer 152 , the encapsulation layer 152 is disposed outside the luminous body 151 , and the encapsulation layer 152 may also be filled with an inert gas.
  • the substrate 130 of the embodiment of the present application can be a flexible membrane, and its material can be polyethylene (Polyethylene, PE), polyimide (Polyimide, PI), etc.
  • the specific material of the board is not limited.
  • the display screen 100 in the embodiment of the present application can be used as a flexible screen solution.
  • the specific structural layout of the camera assembly 200 is not limited.
  • the camera assembly 200 including the lens assembly and the photosensitive element 220 can be disposed in the first accommodating cavity C1.
  • the substrate 130 of the embodiment of the present application may be a glass substrate 130
  • the photosensitive element 220 is disposed outside the display screen 100 on the side of the substrate 130 away from the polarizer 120 .
  • the display screen of the embodiment of the present application adopts glass substrate technology (Thin Film Transistor, TFT technology), and the glass substrate 130 has light transmittance.
  • TFT technology Thin Film Transistor
  • the photosensitive element 220 is not integrated inside the display screen 100 , which makes wiring related to the photosensitive element 220 more convenient.
  • the camera assembly 200 of the embodiment of the present application may include a filter 230 disposed outside the display screen 100 and between the display screen 100 and the photosensitive element 220 .
  • the filter 230 can selectively absorb different wavelength bands of light, so as to adapt to different styles of light and shadow effects during imaging.
  • the infrared light can be absorbed by the optical filter 230, so as to prevent the infrared light from affecting the imaging effect.
  • the display screen 100 of the embodiment of the present application may further include a heat dissipation layer 160 , and the heat dissipation layer 160 is arranged on the substrate 130 away from the polarizer 120 On one side, the heat dissipation layer 160 is provided with a first light-transmitting through hole 161 , and the first light-transmitting through hole 161 is disposed corresponding to the lens module 210 .
  • the heat dissipation layer 160 can conduct away the heat of the substrate 130, so as to avoid the temperature of the substrate 130 from being too high and the temperature of the components, circuits, etc. on it from being too high, which can undoubtedly reduce power consumption and reduce Risk of damage to structures on the substrate 130 .
  • the first light-transmitting hole 161 can avoid light, and the light distributed by the lens module 210 can pass through the first light-transmitting hole 161 and project to the photosensitive element 220 smoothly.
  • the heat dissipation layer 160 may be a copper foil layer, an aluminum foil layer, or the like.
  • the display screen 100 of the embodiment of the present application may further include a flexible cushion layer 170 , and the flexible cushion layer 170 is arranged on the substrate 130 away from the polarized light.
  • the flexible cushion layer 170 is provided with a second light-transmitting through hole 171 , and the second light-transmitting through hole 171 is arranged corresponding to the lens module 210 .
  • the flexible cushion layer 170 can provide a flexible installation base for the substrate 130 , preventing the substrate 130 from being damaged by rigid contact, and prolonging the service life of the display screen 100 .
  • the second light-transmitting hole 171 can avoid light, and the light distributed by the lens module 210 can pass through the second light-transmitting hole 171 and project to the photosensitive element 220 smoothly.
  • the flexible pad layer 170 can be selected as a foam layer, a rubber layer, various elastic polymer material layers, and the like.
  • the display screen 100 of the embodiment of the present application may include a heat dissipation layer 160 and a flexible cushion layer 170 at the same time.
  • One side is stacked in turn, and the heat dissipation layer 160 is located between the substrate 130 and the flexible pad layer 170 .
  • the disclosed electronic devices may be smart phones, tablet computers, e-book readers, wearable devices and other devices, and the embodiments of the present application do not limit the specific types of electronic devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne un dispositif électronique, comprenant un écran d'affichage et un ensemble caméra. L'écran d'affichage est pourvu d'une première zone et d'une seconde zone, l'ensemble caméra est agencé en correspondance avec la première zone, et la seconde zone est une zone sur l'écran d'affichage autre que la première zone. Une première cavité de réception est disposée dans l'écran d'affichage, et la première cavité de réception est agencée en correspondance avec la première zone. L'ensemble caméra comprend un module de lentille et un élément photosensible, le module de lentille étant disposé dans la première cavité de réception, et l'élément photosensible et le module de lentille étant agencés en correspondance.
PCT/CN2022/132366 2021-11-19 2022-11-16 Dispositif électronique WO2023088327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111407990.7 2021-11-19
CN202111407990.7A CN114125233A (zh) 2021-11-19 2021-11-19 电子设备

Publications (1)

Publication Number Publication Date
WO2023088327A1 true WO2023088327A1 (fr) 2023-05-25

Family

ID=80372624

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/132366 WO2023088327A1 (fr) 2021-11-19 2022-11-16 Dispositif électronique

Country Status (2)

Country Link
CN (1) CN114125233A (fr)
WO (1) WO2023088327A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114125233A (zh) * 2021-11-19 2022-03-01 维沃移动通信有限公司 电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112492190A (zh) * 2020-12-17 2021-03-12 维沃移动通信有限公司 电子设备
CN112804436A (zh) * 2021-03-22 2021-05-14 深圳市汇顶科技股份有限公司 电子设备
CN112820197A (zh) * 2021-02-05 2021-05-18 维沃移动通信有限公司 电子设备、显示屏及显示屏的制备方法
WO2021115347A1 (fr) * 2019-12-10 2021-06-17 RealMe重庆移动通信有限公司 Ensemble écran d'affichage et dispositif électronique
WO2021227775A1 (fr) * 2020-05-09 2021-11-18 华为技术有限公司 Dispositif électronique et écran d'affichage
CN114125233A (zh) * 2021-11-19 2022-03-01 维沃移动通信有限公司 电子设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106550177A (zh) * 2016-09-06 2017-03-29 华为机器有限公司 一种摄像头及其制造方法和终端
CN109151098A (zh) * 2017-06-28 2019-01-04 北京小米移动软件有限公司 电子设备
CN107132884A (zh) * 2017-06-30 2017-09-05 广东欧珀移动通信有限公司 一种电子设备及其触摸屏
CN209044203U (zh) * 2018-12-11 2019-06-28 南昌欧菲生物识别技术有限公司 变焦发射模组、成像装置及电子设备
CN209845079U (zh) * 2019-04-19 2019-12-24 珠海晨新科技有限公司 应用于面内挖孔屏的摄像头模组连接结构及其屏和终端
CN209692813U (zh) * 2019-05-06 2019-11-26 维沃移动通信有限公司 一种终端
CN110049223B (zh) * 2019-05-08 2021-09-03 维沃移动通信有限公司 一种摄像头组件及移动终端
CN112736111A (zh) * 2019-10-29 2021-04-30 北京小米移动软件有限公司 屏幕模组及电子设备
CN210927680U (zh) * 2019-11-21 2020-07-03 维沃移动通信有限公司 一种电子设备
CN111031155A (zh) * 2019-12-11 2020-04-17 上海传英信息技术有限公司 显示装置
CN210807449U (zh) * 2019-12-31 2020-06-19 维沃移动通信有限公司 摄像模组及电子设备
CN212034216U (zh) * 2020-07-03 2020-11-27 北京小米移动软件有限公司 摄像头模组及具有其的电子设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021115347A1 (fr) * 2019-12-10 2021-06-17 RealMe重庆移动通信有限公司 Ensemble écran d'affichage et dispositif électronique
WO2021227775A1 (fr) * 2020-05-09 2021-11-18 华为技术有限公司 Dispositif électronique et écran d'affichage
CN112492190A (zh) * 2020-12-17 2021-03-12 维沃移动通信有限公司 电子设备
CN112820197A (zh) * 2021-02-05 2021-05-18 维沃移动通信有限公司 电子设备、显示屏及显示屏的制备方法
CN112804436A (zh) * 2021-03-22 2021-05-14 深圳市汇顶科技股份有限公司 电子设备
CN114125233A (zh) * 2021-11-19 2022-03-01 维沃移动通信有限公司 电子设备

Also Published As

Publication number Publication date
CN114125233A (zh) 2022-03-01

Similar Documents

Publication Publication Date Title
US11316119B2 (en) Curved display apparatus and method of manufacturing the same
US11263936B2 (en) Electronic device including crack detection wiring
CN112185259B (zh) 显示装置
US9123674B2 (en) Display unit, method of manufacturing display unit, and electronic apparatus
US10921624B2 (en) Display panel and method for manufacturing the same
US11665940B2 (en) Display substrate for avoiding breaks and preparation method thereof, bonding method of display panel and display apparatus
US20230301135A1 (en) Electronic device
US11626467B2 (en) Display panel and display device having the same
US20220019327A1 (en) Display device
WO2023088327A1 (fr) Dispositif électronique
TWI721308B (zh) 微型發光二極體顯示裝置
KR20230001578A (ko) 발광 표시 장치
US11849612B2 (en) Display panel, display device including same, and method for manufacturing display device
CN116071995A (zh) 显示设备
US20210263551A1 (en) Electronic apparatus
KR20190053017A (ko) 디스플레이 장치
KR20230001078A (ko) 발광 표시 장치
CN111863842B (zh) 电子设备、显示模组及其显示面板
CN217426335U (zh) 保护膜及显示模组
US20240130161A1 (en) Display panel
KR102668375B1 (ko) 음향 발생 장치를 갖는 회로보드와 그를 포함하는 표시 장치
US20230209923A1 (en) Light emitting display device and method for manufacturing the same
EP4326033A2 (fr) Dispositif d'affichage électroluminescent
US20240049535A1 (en) Light emitting display device
EP4040520A1 (fr) Dispositif d'affichage et dispositif électronique le comprenant

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22894859

Country of ref document: EP

Kind code of ref document: A1