Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.2074/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :06/03/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : GLASS PACKAGE FOR SEALING A DEVICE  AND SYSTEM COMPRISING GLASS
PACKAGE
(51) International classification :C03C27/06
(31) Priority Document No :09170918.8
(32) Priority Date :22/09/2009
(33) Name of priority country :EPO
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/IB2010/054157
:15/09/2010
:NA
:NA
(71)Name of Applicant :
1)KONINKLIJKE PHILIPS ELECTRONICS N.V.
Address of Applicant :GROENEWOUDSEWEG 1
EINDHOVEN 5621 BA NETHERLANDS
(72)Name of Inventor :
1)VAN DIJK Fransciscus Arnoldus Gerardus
2)SANDERS Renatus Hendricus Maria
3)TIMMERMANS Petrus Henricus Maria
(57) Abstract :
The invention relates to a glass package (100) for sealing a device (120), to a system (110) comprising the glass package, a light
source (210), a luminaire (200), a backlighting system (310), and to a display device (300). The glass package according to the
invention comprises a first glass substrate (10), a second glass substrate (20), and a seal (30) sealing an interface between the first
glass substrate and the second glass substrate. The seal comprises a frit (30) comprising glass. A CTE of the frit is chosen to be at
least 10% lower compared to the CTE of the first glass substrate and/or of the second glass substrate. An effect of the glass
package according to the invention is that the difference between the CTE of the frit compared to the CTE of the first glass
substrate and/or the second glass substrate enables to generate a gas-tight sealed glass package while using a glass-material as the
first glass substrate and/or as the second glass substrate which has a relatively high CTE.
No. of Pages : 20 No. of Claims : 12
The Patent Office Journal 21/06/2013 14008