WO2020042446A1 - Support de détection - Google Patents
Support de détection Download PDFInfo
- Publication number
- WO2020042446A1 WO2020042446A1 PCT/CN2018/121663 CN2018121663W WO2020042446A1 WO 2020042446 A1 WO2020042446 A1 WO 2020042446A1 CN 2018121663 W CN2018121663 W CN 2018121663W WO 2020042446 A1 WO2020042446 A1 WO 2020042446A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stopper
- base
- detection
- display panel
- bracket according
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
Definitions
- the present application relates to the technical field of display screens, and in particular, to a detection bracket.
- the front frame, rear case, and base of the whole machine need to be disassembled. Therefore, the display panel for measurement needs to be erected vertically.
- the brackets provided to support the display panel for detection are mostly integrated, which are not removable, which is inconvenient to carry and use.
- the bracket clamps the panel to a certain height. If the clamp is not stable enough, the panel may be damaged when dropped. , Which makes the optical measurement operation of the panel inconvenient.
- the main purpose of the present application is to provide a detection bracket, which aims to provide a detection bracket for a display panel with a simple structure, stable support, and convenient portability.
- the detection bracket provided in the present application is configured to support a display panel, the display panel includes opposite first surfaces and a second surface, and the detection bracket includes:
- At least one first stopper is detachably connected to the base and abuts against the first surface
- At least one second stopper is detachably connected to the base and abuts against the second surface
- the direction from the first surface to the second surface is the first direction, and the distance between the first stopper and the second stopper in the first direction is adjustable.
- the second stopper and the first stopper are both disposed perpendicular to the base.
- the second stopper is provided one, the first stopper is provided two, and the second stopper is located at a line where the two first stoppers are connected. Midline.
- the base is provided with at least one slideway extending along the first direction, and one end portion of the second stopper is slidably fitted with the slideway.
- the second stopper includes a stopper rod and a sliding portion, and the sliding portion is connected to one end of the stopper rod;
- the slideway includes a guide groove provided on a surface of the base facing away from the stop lever, and a through-avoiding hole is formed in the groove bottom of the guide groove;
- the stopper rod passes out of the avoidance hole, and the sliding portion is slidably fitted with the guide groove.
- the second stopper further includes a connecting portion that connects the stopper rod and the sliding portion, the connecting portion is provided with an external thread, and the stopper rod passes out.
- the connecting portion cooperates with a locking member to lock the second stopper to the base.
- a distance between the two first stoppers is adjustable in a direction perpendicular to the first direction.
- the base is provided with a plurality of connection holes, the plurality of connection holes are evenly spaced along a direction perpendicular to the first direction, and one end portion of the first stopper Connected in a connection hole.
- the first stopper is long rod-shaped, and the material of the first stopper is a light-transmitting material.
- a cross-sectional shape of the first stopper is semicircular or rectangular.
- the technical solution of the present application forms a clamping position by setting the first stopper and the second stopper to cooperate with the base, the structure is simple, and no complicated connection relationship is required.
- the clamping position can clamp two opposite surfaces of the display panel and one. The side, that is, the base bears against one side of the display panel, the first stopper abuts the first surface, and the second stopper abuts the second surface.
- This structure reduces the height of supporting the display panel and adds a detection bracket.
- the contact area with the display panel can provide stable support without falling damage; at the same time, the first stopper and the second stopper are detachably connected to the base, and are not used or moved when the detection bracket is used.
- the first stopper and the second stopper When carrying, the first stopper and the second stopper can be removed and placed in parallel on the base to save space and facilitate storage and carrying; and the first stopper and the second stopper are along the first direction.
- the distance can be adjusted, so that it can be applied to display panels of different thicknesses, which is highly practical.
- FIG. 1 is a schematic structural diagram of an embodiment of a detection bracket of this application
- FIG. 2 is a schematic structural view of the detection bracket shown in FIG. 1 from another perspective;
- FIG. 3 is a top view of the detection bracket shown in FIG. 1;
- FIG. 4 is a sectional view taken along line A-A in FIG. 3;
- FIG. 5 is a schematic structural diagram of the display bracket clamping the display panel shown in FIG. 1;
- FIG. 6 is a schematic structural diagram of an embodiment of a first stopper in the detection bracket shown in FIG. 1;
- FIG. 7 is a schematic structural diagram of an embodiment of a second stopper in the detection bracket shown in FIG. 1;
- FIG. 8 is a schematic structural diagram of an embodiment of a base in the detection bracket shown in FIG. 1.
- fixed may be a fixed connection, a detachable connection, or a whole; It is a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements, unless it is clearly defined otherwise.
- fixed may be a fixed connection, a detachable connection, or a whole; It is a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements, unless it is clearly defined otherwise.
- the application proposes a detection bracket 100.
- the detection bracket 100 includes:
- the base 1 resists a side of the display panel 200
- At least one first stopper 2 is detachably connected to the base 1 and abuts against the first surface
- At least one second stopper 3 is detachably connected to the base 1 and abuts against the second surface;
- the direction from the first surface to the second surface is a first direction.
- the distance between the first stopper 2 and the second stopper 3 in the first direction is adjustable to clamp display panels of different thicknesses. 200.
- the detection bracket 100 is configured to support the display panel 200 so that it is in an upright state, thereby facilitating the testing of the optical performance of the display panel 200 to ensure the pass rate of the display panel 200.
- the display panel 200 includes opposite first and second surfaces, and four sides.
- the base 1 is substantially rectangular parallelepiped and has a certain thickness.
- the material of the base 1 can be metal and have a large mass, so that Good stabilization.
- the material of the base 1 is not limited to metal, such as bakelite, plastic, or other materials.
- the base 1 is integrally formed to effectively improve its structural strength, and the two ends in the length direction are concavely formed with a notch. This structure can save the material of the base 1 and is more beautiful in appearance.
- the connection between the first stopper 2, the second stopper 3 and the base 1 may be one of a screw connection, a snap connection, or other detachable connections.
- the first stopper 2 and the second stopper 3 can both be provided, and the structure is simple. Both of them are disposed symmetrically about a horizontal axis of the display panel 200; the first stopper 2 and the second stopper can also be provided. One of the pieces 3 is provided, and the other is provided in plurality, so as to achieve more stable clamping; of course, the first stopper 2 and the second stopper 3 may also be provided in plural.
- the display panel 200 is placed on the detection bracket 100, one of the first stopper 2 and the second stopper 3 abuts the screen of the display panel 200, and the other abuts the back panel of the display panel 200.
- the first surface is set as the screen
- the second surface is the surface of the back plate
- the first stopper 2 abuts the screen of the display panel 200
- the second stopper 3 abuts the back plate of the display panel 200.
- the first stopper 2 may be in contact with the back plate of the display panel 200
- the second stopper 3 may be in contact with the screen of the display panel 200.
- the first stopper 2 and the second stopper 3 are arranged to cooperate with the base 1 to form a clamping position, the structure is simple, and no complicated connection relationship is required.
- the clamping position can clamp the display panel 200 to face each other.
- the surface and one side, that is, the base 1 abuts one side of the display panel 200, the first stopper 2 abuts the first surface, and the second stopper 3 abuts the second surface.
- This structure reduces the support for the display panel. Height of 200, and increase the contact area between the detection bracket 100 and the display panel 200, so as to provide stable support without falling damage; at the same time, the first stopper 2 and the second stopper 3 and The base 1 is detachably connected.
- the first stopper 2 and the second stopper 3 can be removed and placed on the base 1 in parallel to save space and facilitate storage and carrying. .
- the distance between the first stopper 2 and the second stopper 3 in the first direction can be adjusted, so that the display panel 200 with different thickness can be applied, and the practicability is strong.
- the second stopper 3 and the first stopper 2 are arranged in parallel, and the vertical distance between the two is adjustable.
- the second stopper 3 and the first stopper 2 are both convexly disposed on the base 1.
- the surfaces of the first stopper 2 and the second stopper 3 protruding from the base 1 and facing the display panel 200 can completely abut the display.
- the surface of the panel 200 may be partially abutted.
- the first stopper 2 and the second stopper 3 are arranged in parallel, so that both of them completely abut the surface of the display panel 200, thereby further increasing the stability of clamping.
- the first stopper 2 and the second stopper 3 can be set at a right angle or an acute angle with the base 1 according to actual needs, so that the display panel 200 is arranged perpendicular to the base 1 or inclined relative to the base 1 to facilitate optical color gamut and uniformity. Measurement of degree and transmittance.
- the vertical distance between the first stopper 2 and the second stopper 3 is adjustable, so that the detection bracket 100 can be set to clamp the display panels 200 with different thicknesses, thereby improving the wide applicability.
- the first stopper 2 is a long rod. Since it is clamped on the screen surface of the display panel 200, its height, width and thickness are not easy. Set a larger size to avoid blocking the screen. Specifically, the height of the first stopper 2 is appropriate and is not limited. The thickness of the first stopper 2 is 5 mm or less and the width is 15 mm or less.
- the material of the first stopper 2 is set as a light-transmitting material, so that during the optical test, the light will not be blocked from entering the screen, which can provide stable clamping without Affects the conduct of normal tests.
- the light-transmitting material may be glass, plastic with good light transmission, resin, and the like.
- the material of the second stopper 3 may be metal, plastic, or wood, etc., and has good resistance to bending and compression.
- the second stopper 3 includes a stopper rod 31 that abuts against the surface of the back panel of the display panel 200 without affecting the optical test. Its height is set to be greater than the height of the first stopper 2.
- the height of the panel 200 can be set, and the width can also be set to a larger size, but it is guaranteed not to affect the cooperation relationship with the base 1, thereby providing more stable support.
- the surface of the back plate of the display panel 200 usually has a certain degree of arc, so the peripheral edge of the stop lever 31 can be chamfered to better cooperate with the back plate, thereby improving the clamping stability, while not Scratches the back panel.
- the first stopper 2 and the second stopper 3 are both disposed perpendicular to the base 1.
- the first stopper 2 and the second stopper 3 are both perpendicular to the base 1, so that the display panel 200 can be completely upright on the horizontal plane, so that the weight of the display panel 200 can be directly pressed on the base 1 and reduced.
- the bending pressure on the first stopper 2 and the second stopper 3 makes the detection bracket 100 more durable to use. When performing optical tests, the efficiency of the tests can also be improved.
- one second stopper 3 is provided, two first stoppers 2 are provided, and the second stopper 3 is located at two of the first stoppers 3. The midline on which the stopper 2 is connected.
- two first stoppers 2 are provided, two first stoppers 2 are spaced side by side, and the second stopper 3 is located at the two first stoppers.
- the center line of the connection of Part 2 further increases the contact area with the display panel 200 and forms a more stable triangle clamping position, thereby providing uniform and stable support for the display panel 200 and facilitating the testing of the display panel 200; Moreover, it is not necessary to set the same size as the display panel 200, thereby further reducing the size of the detection bracket 100, and making it more convenient to carry and use.
- the base 1 is provided with at least one slideway 1 a extending in a first direction, and one end portion of the second stopper 3 and the slide
- the track 1a is slidably fitted.
- the second stopper 3 is provided slidably relative to the base 1, and the first stopper 2 is not moved relative to the base 1 in the first direction, so that only by adjusting the position of the second stopper 3 , The distance between the first stopper 2 and the second stopper 3 can be adjusted to clamp display panels of different thicknesses, the structure is simple, the operation is convenient, and the detection efficiency is improved.
- the base 1 is provided with a guide groove 11, and the size of the guide groove 11 matches the size of the end of the second stopper 3, which facilitates sliding and does not loosen the second stopper 3 too much.
- the second stopper 3 slides in the guide groove 11 and is fixed at a proper position, thereby forming a certain clamping interval to clamp the display panel 200 with a certain thickness.
- the extending direction of the slide rail 1 a is the width direction of the base 1, so that the larger surface size of the display panel 200 can be parallel to the length direction of the base 1, and the display panel 200 can be more stable.
- both the first stopper 2 and the second stopper 3 can be provided slidably with the base 1, so that the distance between the first stopper 2 and the second stopper 3 can be adjusted more selectively.
- the second stopper 3 further includes a connecting portion 32 and a sliding portion 33.
- the sliding portion 33 is connected to one end of the stop lever 31, and the connecting portion 32 is connected to the stopper 31.
- the connecting portion 32 is extended from an end of the stop lever 31, and the sliding portion 33 is connected to an end surface of the connecting portion 32 away from the stop lever 31.
- the slide rail 1a includes a guide. A groove 11, the guide groove 11 is provided on a surface of the base 1 facing away from the stop lever 31, and a through hole 13 is formed at the groove bottom of the guide groove 11; Collins
- the stopper rod 31 passes through the avoiding hole 13, and the sliding portion 33 and the guide groove 11 are slidably fitted.
- the sliding portion 33 is specifically a cuboid, and both ends of the sliding portion 33 are slidably arranged in cooperation with the side wall of the guide groove 11, so that the second stopper 3 can be smoothly slid, thereby facilitating adjustment of the second stopper 3 s position.
- the connecting portion 32 is configured to be fixedly connected to the base 1.
- the outer periphery of the connecting portion 32 is provided with external threads, and the second stopper 3 is removed from the lower surface of the base 1 (the lower surface here refers to when the base 1 is in the working state and When the surface contacting the table) passes through the guide groove 11 and the avoiding hole 13 upward, the connecting portion 32 is partially located in the guide groove 11, and the sliding portion 33 abuts the bottom wall of the guide groove 11.
- a locking member can be used, which can be a nut, tighten the connecting portion 32 and cooperate with the sliding portion 33, so that the connecting portion 32 is stably fixed in the guide groove 11, and the second stopper 3 and the base 1 are stabilized. connection.
- a distance between the two first stoppers 2 is adjustable in a direction perpendicular to the first direction.
- the cross-sectional shape of the first stopper 2 is set to be semicircular or rectangular, and two opposite surfaces of the rectangle are parallel surfaces.
- the cross-section is semicircular, The incident light is still emitted as parallel light after reflection and refraction, so both shapes can effectively reduce light attenuation and improve the accuracy of the optical test of the display panel 200.
- the distance between the two first stoppers 2 is set to be adjustable, and the width of the display panel 200 is perpendicular to the thickness of the display panel 200.
- a stopper 2 is arranged in parallel in the length direction of the base 1, so that the maximum distance between the two first stoppers 2 can be set according to actual needs, so as to meet the needs of clamping.
- the base 1 is provided with a plurality of connection holes 12.
- the plurality of connection holes 12 are evenly spaced along the length direction of the base 1.
- One end of the first stopper 2 is connected to a Inside the connecting hole 12.
- connection hole 12 is an internally threaded hole.
- the connection can be completed by screwing the first stopper 2 into the connection hole 12, and the connection structure is simple and Stable, easy to install and disassemble, improve the clamping efficiency of the detection bracket 100, and at the same time ensure the stability of the clamping.
- the connection between the first stopper 2 and the connection hole 12 may also be a snap connection.
- the number of the connection holes 12 may be greater than the number of the first stoppers 2. When different distances are required, the connection between the first stoppers 2 and the connection holes 12 may be adjusted at will.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Cette invention concerne un support de détection (100) pour soutenir un panneau d'affichage (200). Le support de détection (100) comprend : une base (1) en appui contre un côté du panneau d'affichage (200) ; au moins une première butée (2) reliée de façon détachable à la base (1) et venant en appui contre une première surface ; et au moins une seconde butée (3) reliée de façon détachable à la base (1) et venant en appui contre une seconde surface. La direction allant de la première surface à la seconde surface est une première direction, et la distance entre la première butée (2) et la seconde butée (3) selon la première direction est réglable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821389792.6U CN208779036U (zh) | 2018-08-27 | 2018-08-27 | 检测支架 |
CN201821389792.6 | 2018-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020042446A1 true WO2020042446A1 (fr) | 2020-03-05 |
Family
ID=66158721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2018/121663 WO2020042446A1 (fr) | 2018-08-27 | 2018-12-18 | Support de détection |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN208779036U (fr) |
WO (1) | WO2020042446A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110264977A (zh) * | 2019-06-25 | 2019-09-20 | 惠科股份有限公司 | 显示亮度调试方法以及装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2664842Y (zh) * | 2003-11-21 | 2004-12-22 | 阳程科技股份有限公司 | 显示面板的夹持治具 |
CN103148883A (zh) * | 2011-12-07 | 2013-06-12 | 鸿富锦精密工业(武汉)有限公司 | 测试治具 |
US20140224947A1 (en) * | 2011-01-06 | 2014-08-14 | Aspire Innovation, Llc | Electronic Device Holder |
CN206018179U (zh) * | 2016-09-05 | 2017-03-15 | Tcl海外电子(惠州)有限公司 | 平板电视工装及平板电视的组装设备 |
KR20180047758A (ko) * | 2016-11-01 | 2018-05-10 | 엘지전자 주식회사 | 디스플레이 디바이스 |
CN207617633U (zh) * | 2017-12-20 | 2018-07-17 | 成都东软学院 | 插入式手机支架 |
-
2018
- 2018-08-27 CN CN201821389792.6U patent/CN208779036U/zh active Active
- 2018-12-18 WO PCT/CN2018/121663 patent/WO2020042446A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2664842Y (zh) * | 2003-11-21 | 2004-12-22 | 阳程科技股份有限公司 | 显示面板的夹持治具 |
US20140224947A1 (en) * | 2011-01-06 | 2014-08-14 | Aspire Innovation, Llc | Electronic Device Holder |
CN103148883A (zh) * | 2011-12-07 | 2013-06-12 | 鸿富锦精密工业(武汉)有限公司 | 测试治具 |
CN206018179U (zh) * | 2016-09-05 | 2017-03-15 | Tcl海外电子(惠州)有限公司 | 平板电视工装及平板电视的组装设备 |
KR20180047758A (ko) * | 2016-11-01 | 2018-05-10 | 엘지전자 주식회사 | 디스플레이 디바이스 |
CN207617633U (zh) * | 2017-12-20 | 2018-07-17 | 成都东软学院 | 插入式手机支架 |
Also Published As
Publication number | Publication date |
---|---|
CN208779036U (zh) | 2019-04-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014012232A1 (fr) | Panneau arrière, module de rétroéclairage et dispositif d'affichage à cristaux liquides | |
WO2014012267A1 (fr) | Dispositif d'affichage à cristaux liquides, module de rétroéclairage et ensemble cadre de celui-ci | |
WO2015027718A1 (fr) | Dispositif d'affichage pour la suppression d'un cadre d'affichage | |
WO2019006916A1 (fr) | Support de panneau d'affichage et ensemble support | |
WO2020042393A1 (fr) | Module de rétroéclairage et appareil d'affichage | |
WO2020042446A1 (fr) | Support de détection | |
WO2015100983A1 (fr) | Dispositif d'essai de module de retroeclairage a eclairage direct | |
WO2013060035A1 (fr) | Dispositif d'affichage à cristaux liquides et son dispositif de fixation | |
WO2018205562A1 (fr) | Module d'affichage à cristaux liquides sans cadre et télévision à cristaux liquides | |
WO2021243542A1 (fr) | Structure de conditionnement de produit électronique de type tampon | |
WO2020019722A1 (fr) | Appareil d'éclairage pour panneau de test | |
WO2019019881A1 (fr) | Appareil d'affichage à cristaux liquides | |
WO2020087571A1 (fr) | Support de détection | |
WO2017041442A1 (fr) | Module de rétroéclairage et dispositif d'affichage | |
CN109764825A (zh) | 一种弯管截面椭圆度手动测量装置 | |
WO2013071533A1 (fr) | Système de rétroéclairage | |
WO2013071603A1 (fr) | Dispositif d'affichage à écran plat, dispositif d'affichage stéréoscopique et dispositif d'affichage à plasma | |
WO2014015533A1 (fr) | Cadre arrière d'écran et dispositif d'affichage à cristaux liquides | |
CN208521240U (zh) | 计算机硬件固定装置 | |
WO2017080404A1 (fr) | Ensemble carte de circuit imprimé, dispositif source de lumière et équipement de projection | |
CN208187445U (zh) | 一种可更换夹具的背板检测装置 | |
CN216179764U (zh) | 一种cob光器件产品通用pcba夹持夹具 | |
WO2019019877A1 (fr) | Appareil d'affichage à cristaux liquides | |
WO2020062552A1 (fr) | Support permettant de fixer un module et dispositif de test | |
CN209673329U (zh) | 一种可悬挂pg测试盒的安装座及显示面板检测治具 |
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: 18932276 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 22/06/2021) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18932276 Country of ref document: EP Kind code of ref document: A1 |