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1. WO2018121685 - PVB FILM FOR HEAD UP DISPLAY (HUD), FORMING MOLD AND FORMING METHOD THEREOF

Publication Number WO/2018/121685
Publication Date 05.07.2018
International Application No. PCT/CN2017/119499
International Filing Date 28.12.2017
IPC
B29C 43/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
32Component parts, details or accessories; Auxiliary operations
36Moulds for making articles of definite length, i.e. discrete articles
G02B 27/10 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
10Beam splitting or combining systems
B32B 17/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or fibres of glass, slag or the like
06comprising glass as the main or only constituent of a layer, next to another layer of a specific substance
10of synthetic resin
CPC
B29C 2043/366
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
32Component parts, details or accessories; Auxiliary operations
36Moulds for making articles of definite length, i.e. discrete articles
366plates pressurized by an actuator, e.g. ram drive, screw, vulcanizing presses
B29C 33/68
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
56Coatings ; , e.g. enameled or galvanised; Releasing, lubricating or separating agents
68Release sheets
B29C 37/0075
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
37Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
0067Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
0075using release sheets
B29C 43/021
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
02of articles of definite length, i.e. discrete articles
021characterised by the shape of the surface
B29C 43/36
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
32Component parts, details or accessories; Auxiliary operations
36Moulds for making articles of definite length, i.e. discrete articles
B29C 51/082
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
08Deep drawing or matched-mould forming, i.e. using mechanical means only
082by shaping between complementary mould parts
Applicants
  • SAINT-GOBAIN GLASS FRANCE [FR]/[FR]
  • GUO, Xiaofeng [CN]/[FR] (BZ)
Inventors
  • GUO, Xiaofeng
Agents
  • CHINA PATENT AGENT (H.K.) LTD.
Priority Data
201611245564.729.12.2016CN
201621468104.629.12.2016CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PVB FILM FOR HEAD UP DISPLAY (HUD), FORMING MOLD AND FORMING METHOD THEREOF
(FR) FILM PVB POUR AFFICHAGE TÊTE HAUTE (ATH), MOULE DE FORMAGE ET PROCÉDÉ DE FORMAGE CORRESPONDANTS
Abstract
(EN)
A PVB film for HUD, a forming mold and a forming method thereof are disclosed. The accuracy error of HUD imaging achieved by the PVB film for HUD is ± 0.1 mrad. The forming mold comprises an upper mold (4) and a lower mold (5), the two of which can form an enclosed mold cavity when clamped together, wherein protective films are disposed on inner surfaces of the upper mold (4) and the lower mold (5), respectively, for supporting PVB material and preventing the PVB material from bonding with the upper mold (4) and the lower mold (5), and wherein shapes of the protective films match shapes of the upper mold (4) and the lower mold (5). The forming method comprises the following steps: sandwiching PVB material between two protective films, and then placing the PVB material into a pre-heated mold; or placing a first protective film of the two protective films into the pre-heated mold, and then placing the PVB material onto the first protective film, and finally placing a second protective film of the two protective films onto the PVB material; clamping the mold; pressurizing the mold and heating the mold to a desired temperature; taking out a formed PVB film along with the two protective films; cooling the formed PVB film; and peeling the two protective films and obtaining the PVB film for HUD.
(FR)
L'invention concerne un film de PVB pour ATH, un moule de formage et un procédé de formage correspondants. L'erreur de précision de l'imagerie ATH obtenue par le film de PVB pour ATH est de ± 0,1 mrad. Le moule de formage comprend un moule supérieur (4) et un moule inférieur (5), les deux pouvant former une cavité de moule fermée lorsqu'ils sont serrés ensemble, des films protecteurs étant disposés sur des surfaces internes respectivement du moule supérieur (4) et du moule inférieur (5), pour supporter la matière de PVB et empêcher le collage de la matière de PVB au moule supérieur (4) et au moule inférieur (5) et les formes des films protecteurs correspondant à des formes du moule supérieur (4) et du moule inférieur (5). Le procédé de formage comprend les étapes suivantes, consistant à : prendre en sandwich une matière de PVB entre deux films protecteurs, puis placer la matière de PVB dans un moule préchauffé ; ou placer un premier film protecteur des deux films protecteurs dans le moule préchauffé, puis placer la matière de PVB sur le premier film protecteur et enfin placer un deuxième film protecteur des deux films protecteurs sur la matière de PVB ; serrer le moule ; mettre sous pression le moule et chauffer le moule à une température souhaitée ; prélever un film de PVB formé conjointement avec les deux films protecteurs ; refroidir le film de PVB formé ; et peler des deux films protecteurs et obtenir le film de PVB pour ATH.
Latest bibliographic data on file with the International Bureau