Source: http://www.google.com/patents/US7948177?dq=5,381,459
Timestamp: 2016-07-02 04:03:39
Document Index: 81829368

Matched Legal Cases: ['Application No. 10', 'Application No. 95148351', 'Application No. 07101243', 'application No. 07101255', 'Application No. 07101235', 'Application No. 2006', 'Application No. 2006', 'Application No. 10', 'Application No. 10', 'Application No. 200710007779']

Patent US7948177 - Flat panel display device with protective layer structure and method of ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA display device includes a first substrate dividing into a pixel region including a pixel and a non-pixel region other than the pixel region, a second substrate opposed to a predetermined region including the pixel region on the first substrate, and a frit seal formed between the first substrate and...http://www.google.com/patents/US7948177?utm_source=gb-gplus-sharePatent US7948177 - Flat panel display device with protective layer structure and method of making the sameAdvanced Patent SearchPublication numberUS7948177 B2Publication typeGrantApplication numberUS 11/640,697Publication dateMay 24, 2011Priority dateJan 27, 2006Fee statusPaidAlso published asCN101009316A, CN101009316B, DE602007005845D1, EP1814160A2, EP1814160A3, EP1814160B1, US20070178796Publication number11640697, 640697, US 7948177 B2, US 7948177B2, US-B2-7948177, US7948177 B2, US7948177B2InventorsWon Kyu KwakOriginal AssigneeSamsung Mobile Display Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (41), Non-Patent Citations (11), Classifications (16), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetFlat panel display device with protective layer structure and method of making the same
US 7948177 B2Abstract
A display device includes a first substrate dividing into a pixel region including a pixel and a non-pixel region other than the pixel region, a second substrate opposed to a predetermined region including the pixel region on the first substrate, and a frit seal formed between the first substrate and the second substrate to encapsulate the first substrate and the second substrate. On the non-pixel region of the first substrate, a buffer layer is formed. An insulating film is formed on the buffer layer and a predetermined region of the insulating layer is etched. A portion of a first metal film is exposed by etching. A second metal film is formed to overlap the exposed portion of the first metal film. A protective film is formed on the insulating film and the second metal film.
a conductive line generally extending in a first direction and comprising a first portion which is interposed between the first substrate and the frit seal, wherein the conductive line has a width in the first portion thereof measured in a second direction, the second direction being perpendicular to the first direction, wherein the frit seal overlaps with the first portion when viewed in a third direction from the first substrate, the third direction being perpendicular to the first and second directions, wherein the first portion comprises a first layer and a second layer formed on the first layer; and
a protective layer comprising a first portion and a second portion, wherein the first portion of the protective layer is interposed between the frit seal and the first portion of the conductive line, wherein the second portion of the protective layer is interposed between the frit seal and the first substrate while not interposed between the frit seal and the first portion of the conductive line, wherein the protective layer comprises a first surface contacting the frit in the first portion thereof, the first surface facing the second substrate, wherein the protective layer comprises a second surface contacting the frit in the second portion thereof, the second surface facing the second substrate, wherein the protective layer has a first thickness in the first portions thereof, and wherein a distance between the first surface and the second surface in the third direction is about equal to or less than the first thickness.
2. The device of claim 1, wherein the distance is equal to or less than about a half of the first thickness.
3. The device of claim 1, wherein the distance is equal to or less than about a third of the first thickness.
5. The device of claim 1, wherein no intervening layer exists between the first layer and the second layer throughout the first portion of the conductive line.
6. A method of making the display device of claim 1, the method comprising:
providing the first substrate and a structure formed on the first substrate, the structure comprising a first insulating layer, a second insulating layer and the first layer of the conductive line buried between the first and second insulating layers;
selectively etching a portion of the structure so as to expose the first portion of the conductive line, the etched portion of the structure having a width measured in the second direction, wherein the width of the etched portion is greater than the width of the first portion of the conductive line;
forming the second layer of the conductive line generally extending in the first direction and comprising a second portion in contact with the first portion of the conductive line;
forming the protective layer over the second layer of the conductive line and a non-etched portion of the second insulating layer;
arranging the second substrate so as to oppose the first substrate; and
interposing the fit seal between the protective layer and second substrate.
7. The method of claim 6, wherein the protective layer comprises a first portion and a second portion, wherein the first portion of the protective layer is interposed between the second portion of the second conductive line and the fit, wherein the second portion of the protective layer is interposed between the fit and the non-etched portion of the second insulating layer while not interposed between the fit and the second portion of the second conductive line, wherein the protective layer comprises a first surface in the first portion thereof, the first surface facing the second substrate, wherein the protective layer comprises a second surface in the second portion thereof, the second surface facing the second substrate, wherein the protective layer has a first thickness in the first portion of the protective layer, the first thickness being measured in the third direction, and wherein a distance between the first surface and the second surface in the third direction is equal to or less than about the first thickness.
8. The method of claim 7, wherein the distance is equal to or less than about a half of the first thickness.
9. The method of claim 7, wherein the distance is equal to or less than about a third of the first thickness.
10. The method of claim 7, wherein interposing the fit comprising placing the frit between the first and second substrates such that the frit contacts both the first surface and the second surface.
11. The method of claim 6, wherein the protective layer comprises a first portion and a second portion, wherein the first portion of the protective layer is interposed between the fit and the second portion of the second conductive line, wherein the second portion of the protective layer is interposed between the frit and the non-etched portion of the second insulating layer while not interposed between the fit and the second portion of the second conductive line, wherein the protective layer comprises a first surface in the first portion thereof, the first surface facing the second substrate, wherein the protective layer comprises a second surface in the second portion thereof, the second surface facing the second substrate, wherein a distance between the first surface and the second surface in the third direction is equal to of less than about 3000 Å.
12. The method of claim 6, wherein the protective layer comprises a first portion and a second portion, wherein the first portion of the protective layer is interposed between the frit and the second portion of the second conductive line, wherein the second portion of the protective layer is interposed between the frit and the non-etched portion of the second insulating layer, wherein the second portion of the protective layer is not interposed between the frit and the second portion of the second conductive line, wherein the protective layer comprises a first surface in the first portion thereof, the first surface facing the second substrate, wherein the protective layer comprises a second surface in the second portion thereof, the second surface facing the second substrate, wherein the second insulating layer has a second thickness in the non-etched portion thereof, the second thickness being measured in the third direction, and wherein the distance between the first surface and the second surface in the third direction is equal to or less than about the second thickness.
13. The method of claim 12, wherein the distance is equal to or less than about a half of the second thickness.
14. The method of claim 12, wherein the distance is equal to or less than about a third of the second thickness.
15. The method of claim 6, wherein the second insulating layer is not interposed between the first portion of the first conductive line and the second portion of the second conductive line.
16. The method of claim 6, wherein the second conductive line has a width in the second portion thereof, and wherein the fit overlaps with the second portion of the second conductive line substantially throughout the entire width of the second conductive line in the second portion thereof.
17. The method of claim 6, wherein the second portion of the second conductive line overlaps with throughout the entire width of the first conductive line in the first portion thereof.
18. The method of claim 6, wherein the frit comprises an elongated segment overlapping with the second portion of the second conductive line, the elongated segment generally extending along the second direction.
19. The method of claim 6, wherein selective etching comprises etching a portion of the second insulating layer.
20. The method of claim 19, wherein selective etching comprises etching a portion of the first insulating layer.
21. The method of claim 6, wherein interposing the frit comprises forming the fit one of the first and second substrates and arranging the first and second substrates such that the frit is interposed between the first and second substrates.
This application claims the benefit of Korean Patent Application No. 10-2006-0008807, filed Jan. 27, 2006, the disclosure of which is incorporated herein by reference in its entirety. This application is related to and incorporates herein by reference the entire contents of the following concurrently filed applications:
FLAT PANEL SDISHN.090AUS
11/640,581
DISPLAY DEVICE AND METHOD OF MAKING THE SAME
FLAT PANEL SDISHN.094AUS
11/640,709
An aspect of the invention provides a method of making a display device, which may comprise: providing a first substrate and a structure formed on the first substrate, the structure comprising a first insulating layer, a second insulating layer and a first conductive line buried between the first and second insulating layers, the first conductive line generally extending in a first direction and comprising a first portion, the first conductive line having a width in the first portion thereof, the width being measured in a second direction perpendicular to the first direction; selectively etching a portion of the structure so as to expose the first portion of the conductive line, the etched portion of the structure having a width measured in the second direction, wherein the width of the etched portion is greater than the width of the first conductive line in the first portion; forming a second conductive line generally extending in the first direction and comprising a second portion in contact with the first portion of the first conductive line; forming a protective layer over the second conductive line and a non-etched portion of the second insulating layer; arranging a second substrate so as to oppose the first substrate; interposing a frit between the protective layer and second substrate; and wherein the frit overlaps with the second portion of the second conductive line when viewed in a third direction from the first substrate, wherein the third direction is perpendicular to the first and second directions.
These and other aspects and advantages of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.
The substrate has a structure that a buffer layer 301 a is applied on the upper of a transparent substrate 300 a, a first insulating film 302 a is applied on the upper of the buffer layer 301 a and a first metal film 303 a is then patterned. And, a contact hole is formed after a second insulating film 304 a is applied on the upper of the first metal film 303 a, and a second metal film 305 a is formed on a predetermined region on the upper of the second insulating film 304 a. The second metal film 305 a is electrically connected to the first metal film 303 a via the contact hole. The reason why the first metal film 303 a and the second metal film 305 a are electrically connected to each other is for reducing line resistance of a line into which an examination signal is input, when examining the substrate in a mother plate. That is, by using the feature that line resistance is reduced when thickness of a line become thick, the first metal film 303 a and the second metal film 305 a electrically connected to each other, receive examination signals and transfers them to the respective substrates. And, by forming a protective film 306 a on the upper of the second insulating film 304 a on which the second metal film 305 a is formed, the first substrate is completed. And, by using a fit 307 a, the second substrate 310 a and the first substrate are encapsulated. At this time, upon reviewing the lower of the frit 307 a, a step d2 is generated on the protective film 306 a by means of the first metal film 303 a and the second metal film 305 a. The step d2 is about 7000 Å in the case that the thickness of the first insulating film 302 a is about 1200 Å, the thickness of the first metal film 303 a is about 2000 Å, the thickness of the second insulating film 304 a is about 5000 Å, the thickness of the second metal film 305 a is about 5000 Å and the thickness of the protective film 306 a is about 6000 Å.
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that is hermetically sealed with a frit and method of fabrication* Cited by examinerNon-Patent CitationsReference1An Office Action dated Oct. 29, 2009 of the Taiwan Patent Application No. 95148351.2European Search Report dated Sep. 24, 2007 from European Patent Application No. 07101243.9.3European Search Report dated Sep. 28, 2007 from corresponding European patent application No. 07101255.3 in 6 pages.4European Search Report dated Sep. 4, 2007 from European Patent Application No. 07101235.5Japanese Office Action issued May 26, 2009 for Japanese Patent Application No. 2006-232430.6Japanese Office Action issued on May 26, 2009 in the corresponding Japanese Patent Application No. 2006-232431.7Notice of Allowance issued in Korean Patent Application No. 10-2006-0008808.8Notice of Allowance issued in Korean Patent Application No. 10-2006-0008809.9Office Action dated Sep. 5, 2008 of corresponding Chinese Patent Application No. 200710007779.X with its English translation in 16 pages.10U.S. 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No. 11/640,581, filed Dec. 18, 2006.11U.S. Appl. No. 11/640,709, filed Dec. 18, 2006.Classifications U.S. Classification313/512, 445/24, 313/634, 313/493, 313/506, 445/25, 313/498International ClassificationH01J1/62, H01J63/04Cooperative ClassificationH01L27/3288, H01L27/3276, H01L51/5253, H01L51/5246European ClassificationH01L51/52C, H01L27/32M2W, H01L27/32M4WLegal EventsDateCodeEventDescriptionDec 18, 2006ASAssignmentOwner name: SAMSUNG SDI CO., LTD., KOREA, REPUBLIC OFFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KWAK, WON KYU;REEL/FRAME:018723/0036Effective date: 20061215Dec 10, 2008ASAssignmentOwner name: SAMSUNG MOBILE DISPLAY CO., LTD., KOREA, REPUBLICFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG SDI CO., LTD.;REEL/FRAME:022552/0192Effective date: 20081209Owner name: SAMSUNG MOBILE DISPLAY CO., LTD.,KOREA, REPUBLIC OFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG SDI CO., LTD.;REEL/FRAME:022552/0192Effective date: 20081209Nov 29, 2011CCCertificate of correctionAug 31, 2012ASAssignmentOwner name: SAMSUNG DISPLAY CO., LTD., KOREA, REPUBLIC OFFree format text: MERGER;ASSIGNOR:SAMSUNG MOBILE DISPLAY CO., LTD.;REEL/FRAME:028921/0334Effective date: 20120702Nov 12, 2014FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services