Search Patents
  • Patent number: 6953947
    Abstract: An organic transistor including an organic layer is provided. The organic layer includes at least one compound represented by the Chemical Formula I.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: October 11, 2005
    Assignee: LG Chem, Ltd.
    Inventors: Se-Hwan Son, Seokhee Yoon, Hyeon Choi, Changhee Lee
  • Publication number: 20130082288
    Abstract: The present invention relates to an organic light emitting display device which can prevent a light compensation layer from cracking and a method for fabricating the same.
    Type: Application
    Filed: September 25, 2012
    Publication date: April 4, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130181196
    Abstract: The present invention provides a new compound and an organic electronic device using the same. The organic electronic device according to the present invention exhibits excellent properties in views of efficiency, driving voltage and a life span.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 18, 2013
    Applicant: LG CHEM, LTD.
    Inventor: LG CHEM, LTD.
  • Publication number: 20130168648
    Abstract: An organic light emitting display device wherein organic and inorganic films are alternately stacked, and the inorganic film is patterned to form an outgassing route, through which gas is released from the organic film, and a manufacturing method thereof is herein.
    Type: Application
    Filed: November 9, 2012
    Publication date: July 4, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130168655
    Abstract: An organic light emitting display device comprises: a lower substrate; a underlying wire formed on the lower substrate; and red, green, and blue subpixels each comprising a transistor section formed on the lower substrate and an organic light emitting diode, wherein the white subpixel comprises a first electrode which is non-overlapped with the underlying wire and is spaced apart from the underlying wire.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 4, 2013
    Applicant: LG Display Co., LTD.
    Inventor: LG Display Co., LTD.
  • Publication number: 20130140539
    Abstract: A host material is disclosed. The host material, as a compound which is represented by the following formula 1, has a chemical structure in which nitrogen and silicon atoms are chemically and directly bonded to each other. Wherein the “a” is one selected from a material group which includes N, S, O, SO2 and NSiG1G2G2, and the “G1, G2 and G3” each become one of a hydrogen, and aromatic, heterocyclic and aliphatic groups which are or not substituted, respectively.
    Type: Application
    Filed: November 29, 2012
    Publication date: June 6, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130112959
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Application
    Filed: December 7, 2012
    Publication date: May 9, 2013
    Applicant: LG CHEM, LTD.
    Inventor: LG CHEM, LTD.
  • Publication number: 20130099219
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 25, 2013
    Applicant: LG CHEM, LTD.
    Inventor: LG CHEM, LTD.
  • Publication number: 20130126837
    Abstract: An organic light emitting display device is disclosed which includes: a substrate defined into a display area and a non-display area; a light emission diode layer formed on the substrate and configured to emit light; a TFE layer formed on the light emission diode layer and configured to protect the light emission diode layer; an intrusive moisture guide layer configured to prevent moisture intrusion into the light emission diode layer; and a getter configured to absorb moisture which is guided by the intrusive moisture guide layer.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 23, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130175512
    Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes a substrate, a thin film transistor formed on the substrate, a first electrode formed on the thin film transistor, an organic emission layer, and a second electrode formed on the organic emission layer. The organic emission layer includes a first stack that includes a first emission layer formed on the first electrode to emit first color light, a second stack that includes a second emission layer formed on the first electrode to emit second color light, and a charge generation layer formed between the first and second stacks.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 11, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130146853
    Abstract: There is provided an organic light-emitting diode (OLED) display device, including: a first substrate on which a plurality of sub-pixel areas are defined; a plurality of first electrodes in the plurality of sub-pixel areas, respectively; and a plurality of light-emitting layers over the plurality of first electrodes and corresponding to the plurality of sub-pixel areas, respectively; wherein at least one of the plurality of light-emitting layers extends to a neighboring sub-pixel area among the plurality of sub-pixel areas, and has an occupied area in the neighboring sub-pixel area.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: LG Display Co., Ltd.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130161592
    Abstract: An OLED device is discussed which includes: a drive thin film transistor formed on a substrate; an organic light emitting diode configured with first electrode, a light emission layer and a second electrode which are sequentially formed on the substrate provided with the drive thin film transistor; a barrier film disposed on the substrate with the organic light emitting element and configure to include a retardation film, an optically isotropic film and a thin layer interposed between the retardation film and the optically isotropic film; and a polarizing plate disposed on the barrier film and configured to prevent reflection of external light.
    Type: Application
    Filed: November 26, 2012
    Publication date: June 27, 2013
    Applicant: LG DISPLAY CO. LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130092909
    Abstract: A device for achieving reduced driving voltage and enhanced color stability under high luminance conditions includes an anode and cathode arranged on a substrate to be opposite each other, a charge generation layer between the anode and the cathode, a first stack formed between the anode and the charge generation layer and including a first light emitting layer, and a second stack formed between the charge generation layer and the cathode and including a second light emitting layer in which first and second hosts are doped with phosphorescent dopant, a HOMO level of the first host is greater than that of the second host, and a LUMO level of the first host is greater than an LUMO level of the second host.
    Type: Application
    Filed: October 10, 2012
    Publication date: April 18, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130153867
    Abstract: Discussed is an organic light emitting device that exhibits improved efficiency and driving voltage by applying a novel material facilitating charge generation to a charge generation layer. The charge generation layer contains a compound represented by the following formulae: wherein R1, R2, R3, R4, R5, R6, R7 and R8 are optionally substituted and are independently selected from an aromatic group having 6 to 20 carbon atoms, and R9 and R10 are independently selected from hydrogen, an optionally substituted aromatic ring having 6 to 20 carbon atoms and an optionally substituted heterocyclic compound having 3 to 17 carbon atoms and one or more elements of N, S and P.
    Type: Application
    Filed: November 21, 2012
    Publication date: June 20, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130140537
    Abstract: Disclosed is an organic light-emitting display device defined into a non-display area and a display area which is provided with pixels. Each of the pixels includes: first through fourth nodes; an organic light emission element connected to the fourth node; a drive transistor disposed between the second, third, and fourth nodes and configured to generate a drive current which drives the organic light emission element to emit light; a storage capacitor disposed between the first and third nodes; first through fifth transistors; wherein the fifth transistor is disposed between the second node with the non-display area and a reference voltage line and configured to control an initialization of the second node.
    Type: Application
    Filed: November 26, 2012
    Publication date: June 6, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130168652
    Abstract: An organic light emitting device, efficacy and lifetime of which are improved by forming a blue light emitting layer disposed over respective pixels in common as a double layer structure, includes a substrate divided into and defined by first to third pixels, a first electrode disposed on the TFT substrate and a second electrode facing the first electrode, the second electrode being spaced from the first electrode, a first light emitting layer and a second light emitting layer disposed in the first pixel and in the second pixel, respectively, between the first electrode and the second electrode, a sub-light emitting layer and a third light emitting layer disposed over the first to third pixels in this order on the first light emitting layer and the second light emitting layer.
    Type: Application
    Filed: November 30, 2012
    Publication date: July 4, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130207087
    Abstract: An organic light emitting display device includes a light shield layer formed on a substrate and a buffer layer formed on an entire surface of the substrate, an oxide semiconductor layer and first electrode formed on the buffer layer, a gate insulation film and gate electrode formed on the oxide semiconductor layer while being deposited to expose both edges of the oxide semiconductor layer, an interlayer insulation film formed to expose both the exposed edges of the oxide semiconductor layer and the first electrode, source and drain electrodes connected with one edge and the other edge of the oxide semiconductor layer, respectively, and a protective film formed to cover the source and drain electrodes while exposing a region of the first electrode so as to define a luminescent region and a non-luminescent region.
    Type: Application
    Filed: December 21, 2012
    Publication date: August 15, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130146850
    Abstract: A tandem white organic light emitting device with improved efficiency, voltage and lifetime includes a first electrode and a second electrode opposing each other, a charge generation layer formed between the first electrode and the second electrode, a first stack disposed between the first electrode and the charge generation layer, the first stack including a first light emitting layer emitting blue light, and a second stack disposed between the charge generation layer and the second electrode, the second stack including a second light emitting layer including one or more hosts doped with a phosphorescent dopant emitting light having a longer wavelength than blue light, wherein the charge generation layer includes an n-type charge generation layer doped with a metal and a p-type charge generation layer made of an organic material.
    Type: Application
    Filed: November 16, 2012
    Publication date: June 13, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130168653
    Abstract: An organic light emitting device includes a substrate divided into and defined by first to third pixels, a first electrode disposed on the substrate and a second electrode facing the first electrode, a first light emitting layer and a second light emitting layer disposed in the first pixel and in the second pixel, respectively, between the first electrode and the second electrode, a first triplet exciton confinement layer, a third light emitting layer and a second triplet exciton confinement layer disposed over the first to third pixels in this order, on the first light emitting layer and the second light emitting layer, and a first common layer disposed between the first light emitting layer and the second light emitting layer, and the first electrode, and a second common layer disposed between the second triplet exciton confinement layer and the second electrode.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 4, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130105778
    Abstract: Provided is an organic light-emitting diode (OLED) display device having sub-pixels with four colors. When a B1 sub-pixel that represents deep blue and a B2 sub-pixel that represents sky blue are formed, by using a high efficiency blue organic material to form the same emission material layers in both the B1 and B2 sub-pixels such that a microcavity effect is implemented only in the B2 sub-pixel and a sky blue peak is extracted from the high efficiency blue organic material of the B2 sub-pixel, the emission material layer of the B2 sub-pixel represents sky blue. Therefore, a process of depositing emission material layers is simplified, which leads to a short process time and a reduction of the cost of materials, resulting in improvement in process efficiency of the OLED display device.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 2, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.