DETAILED ACTION
Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Claim Rejections - 35 USC § 103
In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status.
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
Claims 1, 9, and 11-13 are rejected under U.S.C. 103 as being unpatentable over Ma et al.; US 10,672,996 B2; 08/2016 in view of Hara et al.; US 12,448,401 B2; 12/2019
Claim 1: Ma discloses an organic light emitting diode, consisting of: an anode (see #115 further described in column 16 lines 21-29); a light-emitting layer (see #135 further described in column 16 lines 21-29); a cathode (see #160 further described in column 16 lines 21-29), wherein the light emitting layer (Col. 158 lines 1 – 3 In some embodiments of the OLED, the organic layer is an emissive layer and the compound can be an emissive dopant or a non-emissive dopant) has a dopant material (Column 16 lines 35-49 describes a p-doped hole transport layer and line 45 describes an n-doped electron transport layer) and only two types of host materials therein ( Col 278 line 61 – Col 279 line 3 400 Angstroms of emissive layer (EML) containing two component host (H1:H2 1:1 ratio ) , and each of a first host material and a second host material of the at least two types of host materials ( Col 209 line 16 – 35 triazine and carbazole are listed, line 35 and the group consisting of 2 to 10 cyclic structural units which are groups of the same type or different types selected from the aromatic hydrocarbon cyclic group and the aromatic heterocyclic group) has a horizontal alignment factor not less than 65% (Column 26 lines 25-30 states Material has a preferred orientation (‘orientation factor’) meaning that in a thin solid state film it has an anisotropic horizontal to vertical dipole ratio, i.e. the horizontal to vertical dipole ratio is greater than 0.67:0.33 (isotropic case) e.g. of 0.77:0.23) wherein the first host material has a structure as shown by formula (1):
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194
273
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Greyscale
( BCzPh is an electron-rich host material for highly-efficient PhOLEDs )
wherein the second host material has a structure as shown by formula (2):3
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276
238
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Greyscale
( C45H29N5 is a carbazole-triazine derivative commonly used as a component for OLEDs) wherein a volume ratio of the first host material to the second host material in the light emitting layer is 1:1 ( Col 278 lines 65-66 emissive layer containing two component host (H1:H2 1:1 ratio); a hole injection layer located between the anode and the light-emitting layer (#120); a hole transport layer located on a side of the hole injection layer away from the anode (#125); a light-emitting auxiliary located on a side of the hole transport layer away from the hole injection layer (#130), the light emitting layer being located on a side of the light-emitting auxiliary away from the hole transport layer (#135); a hole blocking layer located on a side of the light emitting layer away from the light-emitting auxiliary ( #140); an electron transport layer located on a side of the hole blocking layer away from the light emitting layer (#145); and an electron injection layer located on a side of the electron transport layer away from the hole blocking layer (#150).
Ma does not appear to disclose the light emitting layer further comprises an acceptor material comprising at least one selected from Carbazole, Dibenzo furan, Dibenzo Thiophene, Indenlocarbazole, Indocarbazole, Benzofurazarbazole, Benzothiophene, Acridine, Tris-Indolobenzene, Pyridine, Pyrimidine, Aziner, Diphenylborane and derivatives and thickens thereof.
However, Hara teaches the light emitting layer ( Col. 37 lines 63 – 66 the light-emitting device of one embodiment of the present invention, the same organic compound as that for the hole-transport layer #112 is preferably used for the light-emitting layer #113 ) further comprises an acceptor material comprising at least one selected from Carbazole, Dibenzo furan, Dibenzo Thiophene, Indenlocarbazole, Indocarbazole, Benzofurazarbazole, Benzothiophene, Acridine, Tris-Indolobenzene, Pyridine, Pyrimidine, Aziner, Diphenylborane and derivatives and thickens thereof ( Col. 35 lines 4 – 19 In addition to the above materials, it is also possible to use an aromatic amine compound, which is a low molecular compound, such as 4,4′,4″-tris(N,N-diphenylamino)triphenylamine (abbreviation: TDATA), 4,4′,4″-tris[N-(3-methylphenyl)-N-phenylamino]triphenylamine (abbreviation: MTDATA), 4,4′-bis[N-(4-diphenylaminophenyl)-N-phenylamino]biphenyl (abbreviation: DPAB), 4,4′-bis(N-{4-[N-(3-methylphenyl)-N-phenylamino]phenyl}-N-phenylamino)biphenyl (abbreviation: DNTPD), 1,3,5-tris[N-(4-diphenylaminophenyl)-N-phenylamino]benzene (abbreviation: DPA3B), 3-[N-(9-phenylcarbazol-3-yl)-N-phenylamino]-9-phenylcarbazole (abbreviation: PCzPCA1), 3,6-bis[N-(9-phenylcarbazol-3-yl)-N-phenylamino]-9-phenylcarbazole (abbreviation: PCzPCA2), or 3-[N-(1-naphthyl)-N-(9-phenylcarbazol-3-yl)amino]-9-phenylcarbazole (abbreviation: PCzPCN1);
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, to utilize the teachings of Hara with Ma to implement the light emitting layer further comprises an acceptor material comprising at least one selected from Carbazole, Dibenzo furan, Dibenzo Thiophene, Indenlocarbazole, Indocarbazole, Benzofurazarbazole, Benzothiophene, Acridine, Tris-Indolobenzene, Pyridine, Pyrimidine, Aziner, Diphenylborane and derivatives and thickens thereof because this creates donor-acceptor (D-A) molecular architectures and serve as host materials or electron-transporting units in OLEDs.
Claim 9: Ma and Hara disclose the organic light emitting diode according to claim 1 (as discussed above).
Ma teaches the dopant material comprising at least one selected from Ir(ppy)3 and Ir(ppy)2 (acac). (Col 2 lines 7-9 a green emissive molecule is tris(2-phenylpyridine) iridium, denoted Ir(ppy)3).
Claim 11: Ma and Hara disclose a method for manufacturing an organic light emitting diode according to claim 1 ( as discussed above).
Ma teaches forming an anode (#115); forming a light emitting layer on a side of the anode by evaporation(Col 17 lines 52-53 For the organic layers, preferred methods include thermal evaporation); and forming a cathode on a side of the light emitting layer away from the anode (#160).
Claim 12: Ma and Hara disclose a display panel according claim 1 (as discussed above).
Ma teaches a substrate having thereon a plurality of the organic light emitting diodes ( Col 18 lines 56-63 Devices fabricated in accordance with embodiments of the invention can be incorporated into a wide variety of consumer products that have one or more of the electronic component modules incorporated therein. Some examples include flat panel displays).
Claim 13: Ma and Hara disclose the display panel of claim 12 ( as discussed above)
Ma teaches a display device ( Col 18 lines 56-64 Devices fabricated in accordance with embodiments of the invention can be incorporated into a wide variety of consumer products that have one or more of the electronic component modules incorporated therein. Some examples include billboards).
Response to Amendments/Arguments
Applicant's arguments filed 02/25/2026 have been fully considered but they are not persuasive. Applicant argues that Ma has too many layers since the wording of claim 1 was changed from “comprising” to “consisting of,” however, each layer of claim 1 is mapped as stated in the claim features. Applicant then argues that Ma does not disclose “each of a first host material and a second host material of the two types of host material of the two types of host materials has a horizontal alignment factor not less than 65%,” however, Ma teaches in Col. 26 lines 25-29 Material has a preferred orientation (‘orientation factor’) meaning that in a thin solid state film it has an anisotropic horizontal to vertical dipole ratio, i.e. the horizontal to vertical dipole ratio is greater than 0.67:0.33 (isotropic case) e.g. of 0.77:0.23). Applicant then argues that the first host material in Ma and the second host material in Ma do not satisfy the features of the claim, however, Ma discloses “volume ratio of the first host material to the second host material in the light emitting layer is 1:1” in Col. 278 lines 65-66.
Conclusion
Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a).
A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action.
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/K.N.F./Examiner, Art Unit 2817
/MARLON T FLETCHER/Supervisory Primary Examiner, Art Unit 2817