Source: http://www.google.com/patents/US6936912?ie=ISO-8859-1&dq=6,455,937
Timestamp: 2014-10-21 20:00:24
Document Index: 388914777

Matched Legal Cases: ['Application No. 2001', 'arts 404', 'arts 404', 'arts 404', 'art 404', 'art 404', 'art 404', 'art 404', 'art 404', 'art 404', 'art 404']

Patent US6936912 - Active matrix substrate with height control member - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn active matrix substrate comprises a substrate, a plurality of adhesion parts provided on the substrate so as to have substantially the same height, and a plurality of active elements provided on the plurality of adhesion parts, respectively, each of the plurality of adhesion parts including a height...http://www.google.com/patents/US6936912?utm_source=gb-gplus-sharePatent US6936912 - Active matrix substrate with height control memberAdvanced Patent SearchPublication numberUS6936912 B2Publication typeGrantApplication numberUS 10/187,015Publication dateAug 30, 2005Filing dateJul 2, 2002Priority dateJul 10, 2001Fee statusLapsedAlso published asUS7407839, US7612438, US20030011738, US20050243229, US20060001023Publication number10187015, 187015, US 6936912 B2, US 6936912B2, US-B2-6936912, US6936912 B2, US6936912B2InventorsMasahiko Akiyama, Yujiro Hara, Yutaka Onozuka, Tsuyoshi Hioki, Mitsuo NakajimaOriginal AssigneeKabushiki Kaisha ToshibaExport CitationBiBTeX, EndNote, RefManPatent Citations (7), Non-Patent Citations (4), Referenced by (4), Classifications (74), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetActive matrix substrate with height control memberUS 6936912 B2Abstract An active matrix substrate comprises a substrate, a plurality of adhesion parts provided on the substrate so as to have substantially the same height, and a plurality of active elements provided on the plurality of adhesion parts, respectively, each of the plurality of adhesion parts including a height control member and an adhesive.
a substrate; a plurality of adhesion parts provided on said substrate and having substantially the same height, each of said plurality of adhesion parts including an insulative height control member and an adhesive, said insulative height control member enclosing said adhesive; a plurality of active elements each having at least one contact section on an upper surface thereof, each of said plurality of active elements being placed on a respective one of said plurality of adhesion parts; an insulating layer covering at least side surfaces of each stack of said plurality of active elements and said plurality of adhesion parts; and a wire connected to said contact section formed on said upper surface of each of said active elements. 2. The active matrix substrate according to claim 1, wherein said insulative height control member has at least one cut or one hole in a wall surface thereof.
CROSS REFERENCE TO RELATED APPLICATIONS This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2001-208723, filed Jul. 10, 2001, the entire contents of which are incorporated herein by reference.
FIG. 17 is a sectional view taken along line 17�17 of FIG. 16;
In a first embodiment of the present invention, active elements (hereinafter, referred to as elements) are formed at an element formation substrate (a first substrate) and transferred to an intermediate substrate. Then, they are further transferred to a final substrate (a second substrate) at which a height control member and an adhesive surrounded (enclosed) by the height control member have been formed, thereafter forming interconnections and others, which completes an active matrix substrate. The height control member makes the heights of the adhesion parts at a certain height. A sectional view of a part of an active matrix substrate according to the first embodiment is shown in FIG. 13. The configuration of the active matrix substrate will be explained by reference to FIG. 13.
The active matrix substrate of the first embodiment has adhesion parts 404 provided so as to have practically the same height as that of the final is substrate 401 and elements 301 provided on the adhesion parts 404. Each of the adhesion parts 404 includes an adhesive 403 and a height control member 402 provided so as to surround the adhesive 403. A post-transfer insulating layer 415 is provided on the entire surface of each of the elements 301. An opening is made in the post-transfer insulating layer 415 in the area corresponding to the contact section of each element 301. Then, conducting layers and interconnections, such as pixel electrodes 201 to be connected to the elements 301, are formed.
In a case where a material that comes off when light, such as ultraviolet light, not heat, is projected on the material is used as the temporary adhesion layer 603, what is obtained by patterning a material that converts the wavelength of the projected is light into a wavelength that promotes the detachment is used as the optical conversion material 602. When the distance between the elements 301 is fine, the optical conversion material 602 is effective in increasing the selecting resolution of elements 301. When the distance between the elements 301 is coarse and the peel strength of the temporary adhesion layer is properly controlled, the optical conversion material 602 may be eliminated as shown in FIG. 3B As shown in FIG. 3C, the optical conversion material 604 may be formed on the element 301. In that case, an insulating black resin about 1 to 3 μm thick in which pigment has been dispersed may be formed on the top surface of the element as part of a protective layer. Providing the optical conversion material 604 on the element 301 allows the element 301 itself to generate heat. This enables the heating area to be localized, which increases remarkably the resolution in peeling the temporary adhesion layer 603. For example, in a case where the dimension of the element is about 50 μm and the distance between elements is about 5 to 10 μm, the temporary adhesion layer 603 can be peeled without any problem.
In a second embodiment of the present invention, a method of manufacturing displays (or active matrix substrates) by an element transferring method according to the first embodiment will be explained. In the second embodiment, two TFTs and a storage capacitor are formed as an element on an element formation substrate. Then, they are transferred to an intermediate substrate and further to a final substrate. Thereafter, inter-connections are formed on the final substrate, thereby forming an EL display.
FIG. 14 is a circuit diagram of a single pixel in the EL display. FIG. 15 is a plan view of a pixel. FIG. 16 is a plan view of an element in one pixel (the part enclosed by a dotted line in the figure) in the single pixel. FIG. 17 is a sectional view taken along line 17�17 of FIG. 16. The part corresponding to the element in FIG. 15 represents the upper interconnections above the element. Since the entire diagram of the EL display is such that pixels of this type are arranged in an array, it will not be given here.
FIG. 19A is a sectional view of an element in an active matrix substrate according to a third embodiment of the present invention. FIG. 19B is a plan view of an adhesion part corresponding to one element. As shown in FIG. 19B, the third embodiment has the same configuration as the first embodiment except that the inside of the height control member 402 of the adhesion part 404 takes the form of a circle. The broken line in FIG. 19B shows the outside of the element 301.
FIG. 20A is a sectional view of an element formed in an active matrix substrate according to a fourth embodiment of the present invention. FIG. 20B is a plan view of an adhesion part corresponding to one element. FIG. 20C is a plan view of one element. As shown in FIG. 20B, the fourth embodiment has the same configuration as the first embodiment except that the height control member 402 of the adhesion part 404 is so formed that it has a cut 1901 in it and encloses the adhesive 403. The broken line in FIG. 20B shows the outside of the element 301.
FIG. 21A is a sectional view of an element formed in an active matrix substrate according to a fifth embodiment of the present invention. FIG. 21B is a plan view of an adhesion part corresponding to one element. The area shown by a broken line in FIG. 21B is the position corresponding to an element 301. As shown in FIG. 21B, the fifth embodiment has the same configuration as the first embodiment except that the element 301 is provided inside the height control member 402 of the adhesion part 404.
FIG. 22A is a sectional view of an element formed in an active matrix substrate according to a sixth embodiment of the present invention. FIG. 22B is a plan view of an adhesion part corresponding to one element. As shown in FIG. 22B, the sixth embodiment has the same configuration as the first embodiment except that not only is the height control member 402 of the adhesion part 404 so provided that it encloses the adhesive 403, but also a second height control member 2101 is provided under the element 301 region.
FIG. 23A is a sectional view of an element formed in an active matrix substrate according to a seventh embodiment of the present invention. FIG. 23B is a plan view of an adhesion part corresponding to one element. As shown in FIG. 23B, the seventh embodiment has the same configuration as the first embodiment except that the height control member 402 of the adhesion part 404 is not provided so as to surround the adhesive 403 and the adhesive 403 surrounds the height control member 402.
FIG. 24A is a sectional view of an element formed in an active matrix substrate according to an eighth embodiment of the present invention. FIG. 24B is a plan view of an adhesion part corresponding to one element. As shown in FIG. 24B, the eighth embodiment has the same configuration as the first embodiment except that the height control members 402 of the adhesion part 404 are not provided so as to surround the adhesive 403 and the height control members 402 are distributed in the adhesive 403.
FIG. 25A is a sectional view of an element formed in an active matrix substrate according to a ninth embodiment of the present invention. FIG. 25B is a plan view of an adhesion part corresponding to one element. As shown in FIG. 25B, the ninth embodiment has the same configuration as the first embodiment except that the height control member 402 of the adhesion part 404 surrounds not only the adhesive 403 but also a part of the top of the adhesive 403. In FIG. 25B, the broken line indicates the outside of the element 301.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5427642 *Oct 8, 1991Jun 27, 1995Matsushita Electric Industrial Co., Ltd.Method for mounting electronic parts on a printed circuit board by use of an adhesive compositionUS6018167 *Dec 29, 1997Jan 25, 2000Sharp Kabushiki KaishaLight-emitting deviceUS6150668 *Sep 8, 1999Nov 21, 2000Lucent Technologies Inc.Thin-film transistor monolithically integrated with an organic light-emitting diodeUS20030011889 *Jun 14, 2002Jan 16, 2003Brian HardenWafer level creation of multiple optical elementsJP2001007340A Title not availableJPH06118441A Title not availableJPH11142878A Title not available* Cited by examinerNon-Patent CitationsReference1U.S. Appl. No. 10/187,015, filed Jul. 2, 2002, Akiyama et al.2 *U.S. Appl. No. 10/190,663, filed Jan. 1, 2003, Hara et al.3U.S. Appl. No. 10/392,840, filed Mar. 21, 2003, Onozuka et al.4U.S. Appl. No. 10/947,291, filed Sep. 23, 2004, Onozuka et al.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7170087 *Jul 15, 2004Jan 30, 2007Kabushiki Kaisha Toyota JidoshokkiEL device and method for manufacturing the sameUS7432993 *May 15, 2006Oct 7, 2008Nikon CorporationDisplay device manufacturing method and display deviceUS8198647Nov 24, 2009Jun 12, 2012Kabushiki Kaisha ToshibaLight emitting apparatusUS8445092Jan 28, 2009May 21, 2013Lintec CorporationResin sheet for circuit boards, sheet for circuit boards and circuit board displays* Cited by examinerClassifications U.S. Classification257/676, 257/88, 257/443, 257/E27.111, 257/E21.411, 257/390, 257/746International ClassificationG09F9/00, G09F9/30, H01L23/495, H01L27/32, G02F1/136, H01L21/02, H01L21/84, G02F1/1339, H01L21/77, G09F9/35, H01L27/12, H01L21/336, G02F1/1368, H01L29/786, G02F1/1333Cooperative ClassificationH01L2924/0132, H01L2924/01006, H01L2924/01005, H01L2227/326, H01L2924/01019, H01L2924/01013, H01L2924/01078, H01L27/1266, H01L2924/01033, H01L2924/19041, H01L2924/01073, H01L2924/07802, H01L2227/323, H01L27/12, H01L2224/83192, H01L2924/01015, H01L24/24, H01L2221/68322, H01L24/83, H01L2924/01079, H01L29/66742, H01L2924/0104, H01L2221/68359, H01L2221/68368, H01L2924/01042, H01L2224/8385, H01L2224/83136, H01L27/1214, H01L2224/29191, H01L51/56, H01L2224/29298, H01L2224/27013, H01L2924/01029, H01L21/6835, H01L24/32, H01L2224/29, H01L27/3244, H01L27/14683, H01L24/29, H01L2224/2919, H01L2924/30105, H01L2224/76155, H01L2924/01074, H01L2224/83051, H01L2924/0665, H01L2924/0105, H01L2924/01049, H01L24/82, H01L2224/24226, H01L2924/00013, H01L2224/82102European ClassificationH01L24/18Legal EventsDateCodeEventDescriptionOct 22, 2013FPExpired due to failure to pay maintenance feeEffective date: 20130830Aug 30, 2013LAPSLapse for failure to pay maintenance feesApr 15, 2013REMIMaintenance fee reminder mailedJan 28, 2009FPAYFee paymentYear of fee payment: 4Sep 24, 2002ASAssignmentOwner name: KABUSHIKI KAISHA TOSHIBA, JAPANFree format text: CORRECTIV;ASSIGNORS:AKIYAMA, MASAHIKO;HARA, YUJIRO;ONOZUKA, YUTAKA;AND OTHERS;REEL/FRAME:013319/0803Effective date: 20020625Jul 2, 2002ASAssignmentOwner name: KABUSHIKI KAISHA TOSHIBA, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AKIYAMA, MASHIKO;HARA, YUJIRO;ONOZUKA, YUTAKA;AND OTHERS;REEL/FRAME:013073/0836Effective date: 20020625RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google