公开(公告)号：US11081679B2

公开(公告)日：2021-08-03

申请号：US16481603

申请日：2018-01-29

申请人： Merck Patent GmbH

发明人： Hsin-Rong Tseng ,  Thorsten Schenk ,  Peter Levermore ,  Anja Jatsch

IPC分类号： H01L51/56 ,  H01L27/32 ,  H01L51/00 ,  H01L51/50

摘要： The present invention relates to a method for forming an organic EL element having at least one pixel type comprising at least three different layers including a hole injection layer (HIL), a hole transport layer (HTL) and an emission layer (EML), characterized in that the HIL, the HTL and the EML of at least one pixel type are obtained by depositing inks wherein the layers are annealed after said depositing steps in a first, second and third annealing step and the difference of the annealing temperature of the first and of the second annealing step is below 35° C., preferably below 30° C., more preferably below 25° C. and the annealing temperature of the third annealing step is no more than 5° C. above the annealing temperature of the first and/or the second annealing step, preferably the annealing temperature of the third annealing step is equal to or below the annealing temperature of the first and the second annealing step, wherein the first annealing step is performed before the second annealing step and the second annealing step is performed before the third annealing step.

公开(公告)号：US11282906B2

公开(公告)日：2022-03-22

申请号：US16325550

申请日：2017-08-14

申请人： Merck Patent GmbH

发明人： Li Wei Tan ,  Peter Levermore ,  Daniel Walker

IPC分类号： H01L27/32 ,  H01L51/52 ,  H01L51/56

摘要： Electronic device and associated methods with multiple well areas located on a common substrate, where each well area is defined by at least three bank structures that form the side walls of the well area. Within each well area, there are at least two electrode segments where the electrode segments are separated laterally by at least one insulating bank where the insulating bank(s) are thicker than the electrode segments. There is at least one charge transporting layer completely filling the well area in direct contact and overlying both the electrode segments and the insulating bank(s). The well areas are filled using solution methods such as inkjet. Such devices have improved uniformity across the active areas.

公开(公告)号：US11211557B2

公开(公告)日：2021-12-28

申请号：US16628113

申请日：2018-06-29

申请人： Merck Patent GmbH

发明人： Leticia Garcia Diez ,  Irina Martynova ,  Aurélie Ludemann ,  Hsin-Rong Tseng ,  Peter Levermore

IPC分类号： H01L51/00 ,  C09D11/36 ,  H01L51/05 ,  H01L51/42 ,  H01L51/50

摘要： The present invention relates to formulations comprising at least one organic semiconductor and at least one organic solvent, characterized in that the formulation contains less than 100 ppm of phenole type impurities, to their use for the preparation of electronic devices, to methods for preparing electronic or optoelectronic devices using the formulations of the present invention, and to electronic or optoelectronic devices prepared from such methods and formulations.