USPatentGranted
B2

Liquid crystal display device having particular conductive layer

Granted 24 Sep 2013 · 2 office actions

Current assignee: Semiconductor Energy Laboratory Co., Ltd. · originally Semiconductor Energy Laboratory

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: Hongyong Zhang · Examiner: Mike Qi · AU 2871 · TC 2800

Life of the patent

3 dated events
⤢ drag to zoomJul 2012Oct 2012Jan 2013Apr 2013Jul 2013Oct 2013Prosecution
Prosecutionhover for detail · click to open

Abstract

Techniques are provided for unifying steps of sealing material so that the yield and the reliability of a liquid-crystal display device become high. A starting film of scanning lines is patterned so that prismatic dummy wirings 301 for the first layer which are not electrically connected are formed in regions R 1 and R 2 , and wirings 302 extending from the pixel section are formed in a region R 3 , and wirings 303 having connection end portions 303 a are formed in a region R 4 . After an interlayer insulation film is formed, the starting film of the signal lines is patterned so that the dummy wirings 304 for the second layer are formed to embed the gaps between the wirings 301 to 303 , and also the wirings 305 and the wirings 303 which extend from the pixel portion are connected to each other. This permits unification of the cross-sectional structure of the sealing material formation region.

Claims

25 · 4 independent · depth 2
12345678910111213141516171819202122232425
25 granted claims

Classifications

6 codes
IPC · International Patent Classification
Section G — Physics
  • G02F1/1339
  • G02F1/1345
USPC · US Patent Classification
349/153349/149349/190349/151

Claim changes

Soon
Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

Pendency
1.3 y
481 days filing → grant
Office actions
1
non-final + final
Responses
3
1 RCE
Examiner
Mike Qi
art unit 2871 · TC 2800
Citations: 242 back · 0 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Log in to unlock

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Log in to unlock

Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20120299008 A129 Nov 2012

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Log in to unlock

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.

Log in to unlock