Comprising Amorphous Semiconductor (epo) Patents (Class 257/E33.004)
  • Publication number: 20130001562
    Abstract: An organic light emitting display apparatus includes a substrate, a thin film transistor formed on the substrate and comprising an active layer, a gate electrode, a source electrode, and a drain electrode, a first gate insulation layer arranged between the gate electrode and the active layer and including an opening portion, a first electrode arranged between the substrate and the first gate insulation layer to overlap the opening portion, an intermediate layer formed on the first electrode and including an organic light emitting layer, a second electrode formed on the intermediate layer, and a capacitor including a first capacitor electrode that is arranged between the substrate and the first gate insulation layer and a second capacitor electrode that is arranged on an upper surface of the first gate insulation layer.
    Type: Application
    Filed: October 3, 2011
    Publication date: January 3, 2013
    Inventor: Jong-Hyun Choi
  • Publication number: 20130001570
    Abstract: A pixel structure disposed on a substrate having an array of pixel areas is provided. A common electrode is disposed on the substrate to surround each of the pixel areas. A capacitance storage electrode is disposed on the common electrode. A first passivation layer covers the capacitance storage electrode and the common electrode. A gate insulation layer covers the scan line and the gate electrode. A semiconductor layer is disposed on the gate insulation layer. A data line, a source and a drain are disposed in each of the pixel areas and the source and the drain are disposed on two sides of the semiconductor layer. A second passivation layer has a contact window and covers the data line, the source, and the drain. A pixel electrode is disposed in each of the pixel areas and is electrically connected with the drain through the contact window.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventor: Meng-Chi Liou
  • Patent number: 8344380
    Abstract: A thin film transistor includes: a gate electrode layer; a first semiconductor layer; a second semiconductor layer having lower carrier mobility than the first semiconductor layer, which is provided over and in contact with the first semiconductor layer; a gate insulating layer which is provided between and in contact with the gate electrode layer and the first semiconductor layer; first impurity semiconductor layers which are provided so as to be in contact with the second semiconductor layer; second impurity semiconductor layers which are provided so as to be partially in contact with the first impurity semiconductor layers and the first and second semiconductor layers; and source and drain electrode layers which are provided so as to be in contact with entire surfaces of the second impurity semiconductor layers, in which an entire surface of the first semiconductor layer on the gate electrode layer side overlaps with the gate electrode layer.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: January 1, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiromichi Godo, Satoshi Kobayashi
  • Publication number: 20120326153
    Abstract: According to an embodiment of the present invention, a thin film transistor array panel includes a gate line and a data line insulated from each other an insulating substrate where the gate line and the data line cross each other to define a pixel region, a thin film transistor (TFT) disposed at an intersection of the gate line and the data line, a floating electrode where at least a portion of the floating electrode overlaps the data line, and a pixel electrode disposed at the pixel region where the pixel electrode is connected to the TFT and overlaps the at least a portion of the floating electrode.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 27, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jong-woong CHANG
  • Publication number: 20120320296
    Abstract: A display device which has one memory in each pixel is disclosed and claimed. Each of the pixels further comprises three transistors and a display element and is connected with four wirings. One of the four wirings is a scanning line and others are signal lines. One electrode of the display element is connected with a first signal line and with the second signal line via the first transistor and via the second transistor, respectively, while the memory is connected with the third signal line via the third transistor. Further, the gate electrodes of the first and second transistors are connected with two terminals of the memory.
    Type: Application
    Filed: July 17, 2012
    Publication date: December 20, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hajime KIMURA, Shunpei YAMAZAKI
  • Publication number: 20120319122
    Abstract: An organic light-emitting display device including: a substrate; a plurality of pixels each including a first electrode, a second electrode, and an organic emission layer interposed between the first electrode and the second electrode; and a black matrix-containing neutral density (ND) film formed in a direction in which light is emitted from the plurality of pixels.
    Type: Application
    Filed: February 7, 2012
    Publication date: December 20, 2012
    Inventor: Jang-Seok Ma
  • Patent number: 8334540
    Abstract: The protective circuit is formed using a non-linear element which includes a gate insulating film covering a gate electrode; a first wiring layer and a second wiring layer which are over the gate insulating film and whose end portions overlap with the gate electrode; and an oxide semiconductor layer which is over the gate electrode and in contact with the gate insulating film and the end portions of the first wiring layer and the second wiring layer. The gate electrode of the non-linear element and a scan line or a signal line is included in a wiring, the first or second wiring layer of the non-linear element is directly connected to the wiring so as to apply the potential of the gate electrode.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 18, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Tomoya Futamura, Takahiro Kasahara
  • Publication number: 20120313098
    Abstract: An organic light-emitting display apparatus may include a substrate; a thin-film transistor (TFT) disposed on the substrate, and having an active layer, a gate electrode, a source electrode and a drain electrode; a signal line formed on the same layer as the source electrode and the drain electrode; a first insulating layer covers the signal line, the source electrode, and the drain electrode; a pixel electrode formed on the first insulating layer, and electrically connected to the TFT; a pixel-defining layer formed on the first insulating layer, includes an opening exposing the pixel electrode; an intermediate layer formed on the pixel electrode, and includes a light-emitting layer; and an opposite electrode formed on the intermediate layer. The intermediate layer is formed on the pixel-defining layer so as to overlap with the signal line.
    Type: Application
    Filed: September 23, 2011
    Publication date: December 13, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Ki-Wook Kim, Dong-Wook Park
  • Patent number: 8330140
    Abstract: A semiconductor light emitting device including a semiconductor substrate and an active layer which is formed on the substrate and has a cascade structure formed by multistage-laminating unit laminate structures 16 each including an emission layer 17 and an injection layer 18 is configured. The unit laminate structure 16 has a first upper level L3, a second upper level L4, and a lower level L2 in the emission layer 17, and an injection level L1 in the injection layer 18, an energy interval between the levels L3 and L4 is set to be smaller than the energy of an LO phonon, the layer thickness of the exit barrier layer is set in a range not less than 70% and not more than 150% of the layer thickness of the injection barrier layer, light is generated by emission transition in the emission layer 17, and electrons after the emission transition are injected from the level L2 into the level L4 of the emission layer of a subsequent stage via the level L1.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: December 11, 2012
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Tadataka Edamura, Kazuue Fujita, Akira Higuchi, Naota Akikusa, Masamichi Yamanishi
  • Publication number: 20120305910
    Abstract: A hybrid thin film transistor includes a first thin film transistor and a second thin film transistor. The first thin film transistor includes a first gate, a first source, a first drain and a first semiconductor layer disposed between the first gate, the first source and the first drain, and the first semiconductor layer includes a crystallized silicon layer. The second thin film transistor includes a second gate, a second source, a second drain and a second semiconductor layer disposed between the second gate, the second source and the second drain, and the second semiconductor layer includes a metal oxide semiconductor layer.
    Type: Application
    Filed: September 15, 2011
    Publication date: December 6, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Hsiu-Chun Hsieh, Yi-Wei Chen, Ta-Wei Chiu, Chung-Tao Chen
  • Publication number: 20120292625
    Abstract: An embodiment of the disclosed technology provides a method of manufacturing an array substrate, comprising: a first mask process of forming an inorganic material protrusion on a base substrate; a second mask process of forming a reflective region pattern, a gate line, a gate electrode branched from the gate line, and a common electrode; a third mask process of forming an active island and a data line formed and forming a source electrode connected to the data line and a drain electrode on the active island and a channel; a fourth mask process of forming an insulation material layer, treating the insulation material layer to form a planarization layer, and forming a through hole above the drain electrode; and a fifth mask process of forming a pixel electrode and connected to the drain electrode via the through hole in a reflective region.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Youngsuk SONG, Seungjin CHOI, Seongyeol YOO
  • Publication number: 20120286277
    Abstract: A pixel structure and a manufacturing method thereof and a display panel are provided. An electrode material layer, a shielding material layer, an inter-layer dielectric material layer, a semiconductor material layer and a photoresist-layer are sequentially formed on a substrate. The semiconductor material layer, the inter-layer dielectric material layer, the shielding material layer and the electrode material layer are patterned using the photoresist-layer as a mask to form a semiconductor pattern, an inter-layer dielectric pattern, a shielding pattern and a pixel electrode. A source/drain electrically connected to the pixel electrode and covering a portion of the semiconductor pattern is formed on the pixel electrode. A channel is another portion of the semiconductor uncovered by the source/drain.
    Type: Application
    Filed: July 30, 2012
    Publication date: November 15, 2012
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventor: Hsien-Kun Chiu
  • Patent number: 8309379
    Abstract: A method for fabricating a flexible display device including the steps of preparing a glass substrate, forming a flexible substrate on the glass substrate, the flexible substrate being formed by forming a semiconductor layer on the glass substrate, forming a first flexible layer on the semiconductor layer, forming an adhesive layer on the first flexible layer, and forming a second flexible layer on the adhesive layer, forming a thin film array on the flexible substrate, forming a display device on the thin film array, and separating the glass substrate from the semiconductor layer of the flexible substrate.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: November 13, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-sik Park, Juhn-Suk Yoo, Soo-Young Yoon
  • Publication number: 20120282718
    Abstract: In accordance with an embodiment, a diode comprises a substrate, a dielectric material including an opening that exposes a portion of the substrate, the opening having an aspect ratio of at least 1, a bottom diode material including a lower region disposed at least partly in the opening and an upper region extending above the opening, the bottom diode material comprising a semiconductor material that is lattice mismatched to the substrate, a top diode material proximate the upper region of the bottom diode material, and an active diode region between the top and bottom diode materials, the active diode region including a surface extending away from the top surface of the substrate.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 8, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Anthony J. Lochtefeld
  • Patent number: 8298843
    Abstract: An array substrate includes first and second lines on a substrate and formed of a metallic material; a gate electrode connected to the first line; a gate insulating layer on the first and second lines and the gate electrode and including a groove exposing the substrate and positioned between the first and second lines; a semiconductor layer on the gate insulating layer and corresponding to the gate electrode; a data line crossing the first and second lines and on the gate insulating layer; a source electrode connected to the data line; a drain electrode spaced apart from the source electrode; a passivation layer on the data line, the source electrode and the drain electrode and including an opening, the opening exposing the gate insulating layer and the drain electrode; and a pixel electrode positioned on the gate insulating layer and in the opening and contacting the drain electrode.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: October 30, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ki-Chul Chun, Hwan Kim, Deuk-Soo Jung
  • Publication number: 20120241745
    Abstract: Disclosed herein is a manufacturing method of a display device including: forming a gate electrode on a substrate; forming a laminated film by photolithography technique. The laminated film is provided above the gate electrode with a gate insulating film sandwiched therebetween and includes a semiconductor layer, at least either a source/drain electrode or a pixel electrode, a planarizing film and a pixel isolation film. The manufacturing method further includes forming a functional layer and a common electrode in this order after the formation of the laminated film. The functional layer includes an organic electric field light-emitting layer. Two or more layers are patterned all together in at least part of the laminated film during the formation of the laminated film.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 27, 2012
    Applicant: Sony Corporation
    Inventor: Takahide Ishii
  • Patent number: 8273638
    Abstract: Provided is a thin film transistor that may be manufactured using Metal Induced Crystallization (MIC) and method for fabricating the same. Also provided is an active matrix flat panel display using the thin film transistor, which may be created by forming a crystallization inducing metal layer below a buffer layer and diffusing the crystallization inducing metal layer. The thin film transistor may include a crystallization inducing metal layer formed on an insulating substrate, a buffer layer formed on the crystallization inducing metal layer, and an active layer formed on the buffer layer and including source/drain regions, and including polycrystalline silicon crystallized by the MIC process.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: September 25, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Bon Koo, Sang-Gul Lee
  • Publication number: 20120235146
    Abstract: An organic light-emitting display device comprises: a lower substrate; an upper substrate facing the lower substrate; and a spacer formed in a sealed space between the lower substrate and the upper substrate and dividing the space into two or more sections; wherein air holes are formed in the spacer and allow air to flow between the sections of the space.
    Type: Application
    Filed: August 12, 2011
    Publication date: September 20, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Kwang-Hae Kim, Sun Park, Chun-Gi You
  • Publication number: 20120222732
    Abstract: A stacked structure may include semiconductors or semiconductor layers grown on an amorphous substrate. A light-emitting device and a solar cell may include the stacked structure including the semiconductors grown on the amorphous substrate. A method of manufacturing the stacked structure, and the light-emitting device and the solar cell including the stacked structure may involve growing a crystalline semiconductor layer on an amorphous substrate.
    Type: Application
    Filed: September 25, 2011
    Publication date: September 6, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jun-hee CHOI
  • Publication number: 20120218488
    Abstract: An array substrate for a fringe field switching mode liquid crystal display device includes a plurality of gate lines on a substrate; a gate insulating layer on the plurality of gate lines; a plurality of data lines crossing the plurality of gate lines to define a plurality of pixel regions; a thin film transistor electrically connected to the gate and data lines in each pixel region; a pixel electrode having a plate shape in each pixel region, and connected to a portion of the thin film transistor; a first passivation layer on the pixel electrode and over the thin film transistor; and a common electrode on the first passivation layer and having a plurality of openings of a bar shape in each pixel region, wherein a center portion of each opening overlaps the pixel electrode, and both ends along a major axis of each opening protrude beyond the pixel electrode.
    Type: Application
    Filed: March 2, 2012
    Publication date: August 30, 2012
    Inventors: Sang-Moo Song, In-Ho Hwang, Dae-Lim Park, Ki-Hyun Lyu
  • Patent number: 8253137
    Abstract: A laminate structure is disclosed that has a region having high surface free energy and a region having low surface free energy that are well separated, has high adhesiveness between an underlying layer and a conductive layer, and can be formed easily with low cost. The laminate structure includes a wettability-variable layer including a first surface free energy region of a first film thickness and a second surface free energy region of a second film thickness, and a conductive layer formed on the second surface free energy region of the wettability-variable layer. The second film thickness is less than the first film thickness and the surface free energy of the second surface free energy region is made higher than the surface free energy of the first surface free energy region by applying a predetermined amount of energy on the second surface free energy region.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: August 28, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takanori Tano, Atsushi Onodera, Koei Suzuki, Hidenori Tomono
  • Publication number: 20120211750
    Abstract: A semiconductor device includes a semiconductor layer, a first insulating layer, a gate electrode which is formed on the first insulating layer and has a portion overlapping a channel region of the semiconductor layer with the first insulating layer sandwiched in between, a second insulating layer which is formed on the first insulating layer and covers the gate electrode, and a capacitor electrode which is formed on the second insulating layer and has a portion facing the gate electrode with the second insulating layer sandwiched in between. The second insulating layer has a thin portion, whose thickness is thinner than that of the second insulating layer in surrounding regions, on the portion of the gate electrode overlapping the channel region. A part of the capacitor electrode faces the portion of the gate electrode overlapping the channel region with the thin portion of the second insulating layer sandwiched in between.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 23, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuaki Kakinuma
  • Patent number: 8247817
    Abstract: In a bottom-gate-type thin film transistor used in a liquid crystal display device in which a poly-Si layer and an a-Si layer are stacked, a quantity of an ON current which flows in the thin film transistor can be increased. A poly-Si layer and an a-Si layer are stacked on a gate electrode as an active layer by way of a gate insulation film therebetween in order of the poly-Si layer and the a-Si layer. An n+Si layer and a source/drain layer are formed on the a-Si layer thus forming a thin film transistor. A forward current which flows in the thin film transistor mainly flows in the poly-Si layer.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: August 21, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takuo Kaitoh, Hidekazu Miyake, Takeshi Sakai, Terunori Saitou
  • Publication number: 20120200818
    Abstract: A liquid crystal display includes a plurality of pixels arranged in a matrix, each pixel having a first sub-pixel electrode and a second sub-pixel electrode. A first thin film transistor is connected to the first sub-pixel electrode. A second thin film transistor is connected to the second sub-pixel electrode. A third thin film transistor is connected to the second sub-pixel electrode. A fourth thin film transistor is connected to a drain electrode of the third thin film transistor. A first gate line is connected to the first thin film transistor and the second thin film transistor. A data line is connected to the first thin film transistor and the second thin film transistor. A second gate line is connected to the third thin film transistor. A third gate line is connected to the fourth thin film transistor.
    Type: Application
    Filed: September 23, 2011
    Publication date: August 9, 2012
    Inventors: CHANG-SOO LEE, Kee-Bum PARK, Yun Jae PARK, Jong Jae LEE, Hoi Sik MOON
  • Publication number: 20120200820
    Abstract: On a first light transmissive substrate, a first scale mark portion is formed inside an opening portion, and on a second light transmissive substrate, a second scale mark portion is formed. On the second light transmissive substrate, a first metal layer, a semiconductor layer, and a second metal layer are laminated. A thin film transistor is formed so as to include a part of the first metal layer, a part of the semiconductor layer, and a part of the second metal layer. The second scale mark portion is formed of another part of the second metal layer. Under the second scale mark portion, another part of the semiconductor layer is formed so as to extend off from the second scale mark portion. Below the second scale mark portion and the semiconductor layer, another part of the first metal layer is formed in a size capable of shielding the opening portion.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 9, 2012
    Inventors: Takao Sato, Saori Sugiyama
  • Patent number: 8237161
    Abstract: Amorphous semiconductor films with enhanced charged carrier transport are disclosed. Also disclosed is a method for fabricating and treating the film to produce the enhanced transport. Also disclosed are semiconductor p-n junctions fabricated with the films which demonstrate the enhanced transport. The films are amorphous and include boron, carbon, and hydrogen.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: August 7, 2012
    Assignee: North Dakota State University Research Foundation
    Inventors: Anthony N. Caruso, Joseph A. Sandstrom, David A. Bunzow
  • Patent number: 8237166
    Abstract: An active matrix display comprising a light control device and a field effect transistor for driving the light control device. The active layer of the field effect transistor comprises an amorphous.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: August 7, 2012
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology
    Inventors: Hideya Kumomi, Hideo Hosono, Toshio Kamiya, Kenji Nomura
  • Publication number: 20120188478
    Abstract: An object is to reduce the number of photomasks used for manufacturing a transistor and manufacturing a display device to less than the conventional one. The display device is manufactured through, in total, three photolithography steps including one photolithography step which serves as both a step of forming a gate electrode and a step of forming an island-like semiconductor layer, one photolithography step of forming a contact hole after a planarization insulating layer is formed, and one photolithography step which serves as both a step of forming a source electrode and a drain electrode and a step of forming a pixel electrode.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 26, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Hideaki KUWABARA
  • Publication number: 20120187405
    Abstract: A TFT array substrate includes a plurality of pixels arranged in a matrix, in which the pixel includes a thin film transistor, a pixel electrode conductively connected to a drain electrode, and a common electrode that is formed opposite the pixel electrode with an insulation film interposed therebetween. In the TFT array substrate, when one of the pixels is focused, the pixel electrode is divided into a plurality of divided pixel electrodes and includes a plurality of branch conductive parts that conductively connect each of the drain electrode and the plurality of divided pixel electrodes, and in plane view, the common electrode is not formed in at least a part of a formation region of the plurality of branch conductive parts.
    Type: Application
    Filed: December 12, 2011
    Publication date: July 26, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Takuji IMAMURA
  • Publication number: 20120168756
    Abstract: Transistors, methods of manufacturing the same, and electronic devices including the transistors. The transistor may include a light blocking member which surrounds at least a portion of the channel layer. The light blocking member may be designed to block light laterally incident from a side of the transistor toward the channel layer (that is, laterally incident light). The light blocking member may be disposed in a portion of a gate insulation layer outside the channel layer. The light blocking member may be connected to a source and a drain or may be connected to a gate. The light blocking member may be separated from the source, the drain and the gate. The light blocking member may completely surround the channel layer.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 5, 2012
    Applicants: INHA-INDUSTRY PARTNERSHIP INSTITUTE, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung-kwan RYU, Jae-kyeong JEONG, Sang-yoon LEE
  • Publication number: 20120168753
    Abstract: In a nitride semiconductor light emitting diode including a substrate made of a nitride semiconductor, a first conductive-type nitride semiconductor layer formed on the substrate, an active layer made of a nitride semiconductor, and a second conductive-type nitride semiconductor layer, characterized in that light emitted is extracted from the under surface side of the substrate or the upper surface side of the second conductive-type nitride semiconductor layer, an intermediate layer is formed between the substrate and the active layer, and dislocations is allowed to generates from the dislocation generating layer as the origin and to distribute in a light emitting region of the active layer.
    Type: Application
    Filed: June 23, 2010
    Publication date: July 5, 2012
    Applicant: NICHIA CORPORATION
    Inventor: Daisuke Sanga
  • Publication number: 20120162181
    Abstract: A display panel, a pixel circuit and a driving method of a differential voltage driving device are disclosed. The driving method includes: respectively supplying an alternating common voltage in a first polarity and a first display data in a second polarity to two terminals of the differential voltage driven device in a first frame; disconnecting the differential voltage driven device from the alternating common voltage, thereby keeping one terminal of the differential voltage driving device at the first polarity of the alternating common voltage; converting the alternating common voltage to the second polarity in a second frame which is consecutive to the first frame; and respectively supplying the alternating common voltage in the second polarity and a second display data in the first polarity to the two terminals of the differential voltage driving device in the second frame, here the first polarity is inverse to the second polarity.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 28, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Young-Ran CHUANG, Wen-Bin Lo, Wei-Jhih Lian, Cheng-Yeh Tsai, Tai-Hsiang Huang, Po-Lun Chen
  • Publication number: 20120161136
    Abstract: A thin film transistor (TFT) array substrate with few processing steps and simple structure is provided, wherein merely two patterned metal layers are required and a patterned planarization layer is adopted to separate the two patterned metal layers from each other and thereby reduce power loading. In addition, the patterned planarization layer has slots to form height differences so as to separate scan lines from common electrodes to further reduce the power loading.
    Type: Application
    Filed: June 24, 2011
    Publication date: June 28, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Ze-Yu Yen, Ke-Chih Chang, Kuo-Yu Huang, En-Yung Lin
  • Patent number: 8207010
    Abstract: It is an object to form a high-quality crystalline semiconductor layer directly over a large-sized substrate with high productivity without reducing the deposition rate and to provide a photoelectric conversion device in which the crystalline semiconductor layer is used as a photoelectric conversion layer. A photoelectric conversion layer formed of a semi-amorphous semiconductor is formed over a substrate as follows: a reaction gas is introduced into a treatment chamber where the substrate is placed; and a microwave is introduced into the treatment chamber through a slit provided for a waveguide that is disposed in approximately parallel to and opposed to the substrate, thereby generating plasma. By forming a photoelectric conversion layer using such a semi-amorphous semiconductor, a rate of deterioration in characteristics by light deterioration is decreased from one-fifth to one-tenth, and thus a photoelectric conversion device that has almost no problems for practical use can be obtained.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: June 26, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Publication number: 20120153283
    Abstract: A display device structure includes a substrate having an active region and an electrostatic protection circuit region. The first metal layer, the first insulation layer, and an amorphous silicon layer are sequentially disposed on the substrate; the first opening passes through the first insulation layer for exposing part of the first metal layer. The second metal layer, disposed on the first insulation layer or the amorphous silicon layer, fills the first opening to contact with the first metal layer; the second insulation layer and the flat layer are disposed on the second metal layer, in which the region of the flat layer is overlapped the electrostatic protection circuit region. The second opening passes through the second insulation layer and the flat layer for exposing the second metal layer, in which the third metal layer fills the second opening to contact with the second metal layer.
    Type: Application
    Filed: May 13, 2011
    Publication date: June 21, 2012
    Applicant: E INK HOLDINGS INC.
    Inventor: Chuan-Feng LIU
  • Publication number: 20120153287
    Abstract: An etchant includes: 5 to 20 wt % of persulfate, 1 to 10 wt % of at least one compound of an inorganic acid, an inorganic acid salt, or a mixture thereof, 0.3 to 5 wt % of a cyclic amine compound, 1 to 10 wt % of at least one compound of an organic acid, an organic acid salt, or a mixture thereof, 0.1 to 5 wt % of p-toluenesulfonic acid, and water, based on the total weight of the etchant. A copper-titanium etchant further includes 0.01 to 2 wt % of a fluoride-containing compound. A method of forming a display device using the etchant, and a display device, are also disclosed.
    Type: Application
    Filed: June 24, 2011
    Publication date: June 21, 2012
    Applicants: DONGWOO FINE-CHEM CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-Sick PARK, Wang-Woo LEE, Sang-Tae KIM, Joon-Woo LEE, Young-Chul PARK, Young-Jun JIN, Kyong-Min KANG, Young-Jin YOON, Suck-Jun LEE, O-Byoung KWON, In-Ho YU, Sang-Hoon JANG, Min-Ki LIM, Dong-Ki KIM
  • Publication number: 20120146025
    Abstract: A light energy reuse type light-emitting device with low power consumption is provided by converting light from a light-emitting device into electric power efficiently for reuse. Also, a light energy reuse type light-emitting device with high yield is provided. A light-blocking film of the light-emitting device is replaced to a photoelectric conversion element, so that light is converted into electric power. That is, conventionally, light is not emitted in a portion of a light-blocking film. In the disclosed invention, light which is not emitted can be converted into electric power by a photoelectric conversion element, and can be reused. Therefore, a light-emitting device with low power consumption is realized.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 14, 2012
    Inventors: Satoshi Seo, Kaoru Hatano
  • Publication number: 20120146037
    Abstract: Provided is a thin film transistor, wherein the on-off ratio thereof is increased by decreasing the OFF current thereof. A bottom-gate TFT (10) is provided with a channel layer (40) obtained by forming a second silicon layer (35) on a first silicon layer (30). Since amorphous silicon regions (32), which surround multiple grains (31) contained in the first silicon layer (30), contain hydrogen in an amount sufficient to enable termination of dangling bonds, most of dangling bonds in the amorphous silicon region (32) are terminated by hydrogen. For this reason, it becomes less likely to have defect levels formed in the amorphous silicon regions (32), and an OFF current that flows through defect levels is therefore decreased. A high number of the grains (31) are retained in the first silicon layer (30), and cause a large ON current to flow. Consequently, the on-off ratio of the TFT (10) is increased.
    Type: Application
    Filed: April 14, 2010
    Publication date: June 14, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tohru Okabe
  • Publication number: 20120146033
    Abstract: An organic light-emitting display apparatus that includes a thin film transistor comprising an active layer, a gate electrode, and source and drain electrodes electrically connected to the active layer; a pixel electrode formed on the same layer as the gate electrode; a light-emitting layer formed on the pixel electrode; a passivation layer formed on upper surfaces of the source and drain electrodes and upper surfaces of wirings formed on the same layer as the source and drain electrodes; an organic insulating layer that covers the thin film transistor, comprises an opening that exposes an upper surface of the pixel electrode, and directly contacts the passivation layer; and a facing electrode that is formed on the light-emitting layer, and is formed to directly contact the organic insulating layer to face the pixel electrode.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 14, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: June-Woo Lee, Joon-Hoo Choi
  • Publication number: 20120138938
    Abstract: A display apparatus includes a first insulating substrate on which pixels are arranged and a second insulating substrate facing the first insulating substrate. Each pixel includes a gate electrode disposed on the first insulating substrate, a gate insulating layer disposed on the first insulating substrate to cover the gate electrode, a semiconductor pattern disposed on the gate insulating layer to overlap with the gate electrode, a source electrode and a drain electrode disposed on the semiconductor pattern, a transparent pixel electrode disposed on the gate insulating layer and partially making contact with the drain electrode, a protective layer disposed on the pixel electrode, and a common electrode disposed on the first insulating substrate or the second insulating substrate to form an electric field together with the pixel electrode.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 7, 2012
    Inventors: Yangho Bae, Osung Seo, Je Hyeong Park, Sanggab Kim
  • Publication number: 20120138935
    Abstract: Provided is an organic light-emitting display device. The organic light-emitting display device includes: a substrate; a buffer layer formed on the substrate; a gate insulating layer formed on the buffer layer; a conductive layer formed on the gate insulating layer; and a pixel defined layer exposing a portion of the conductive layer to form a pad portion connected to bumps of a drive integrated circuit (IC) chip, wherein protrusions and recesses are formed on a surface of the conductive layer.
    Type: Application
    Filed: May 16, 2011
    Publication date: June 7, 2012
    Inventors: Sun Park, Chun-Gi You, Jong-Hyun Park, Yul-Kyu Lee
  • Publication number: 20120132916
    Abstract: An organic light-emitting display apparatus includes: an active layer formed on the substrate; a gate electrode, in which a first insulation layer formed on the active layer, a first conductive layer formed on the first insulation layer and comprising a transparent conductive material, and a second conductive layer comprising a metal are sequentially stacked; a pixel electrode, in which a first electrode layer formed on the first insulation layer to be spaced apart from the gate electrode and comprising a transparent conductive material, a second electrode layer formed of a semi-permeable metal and comprising pores, and a third electrode layer comprising a metal are sequentially stacked; source/drain electrodes electrically connected to the active layer with a second insulation layer covering the gate electrode and the pixel electrode interposed therebetween; an electro-luminescence (EL) layer formed on the pixel electrode; and an opposite electrode formed on the EL layer to face the pixel electrode, wherein
    Type: Application
    Filed: April 27, 2011
    Publication date: May 31, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventor: In-Young JUNG
  • Patent number: 8174015
    Abstract: A display device includes a lower panel including a lower substrate and a pixel transistor formed on the lower substrate; and an upper panel facing the lower panel, and including an upper substrate, a sensing transistor formed on the upper substrate, and a readout transistor connected to the sensing transistor and transmitting a signal. The readout transistor includes a first lower gate electrode formed on the upper substrate, a first semiconductor layer formed on the first lower gate electrode and overlaps the first gate electrode, and a first source electrode and a first drain electrode disposed on the first semiconductor layer.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Hun Jeong, Byeong-Hoon Cho, Jung-Suk Bang, Sang-Youn Han, Woong-Kwon Kim, Sung-Hoon Yang, Suk Won Jung, Dae-Cheol Kim, Kyung-Sook Jeon, Seung Mi Seo
  • Publication number: 20120104394
    Abstract: A display device in which various embodiments can prevent a vertically-striped blur is disclosed. In one aspect, the display device includes first gate lines, second gate lines, data lines, dummy data lines, and a plurality of pixels. The first and second gate lines are extended in a first direction. The data lines and the dummy data lines are extended in a second direction intersecting the first direction. The pixels are defined by the intersection of a first gate line of the first gate lines and a first data line of the data lines.
    Type: Application
    Filed: June 14, 2011
    Publication date: May 3, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventor: Ji Ryun Park
  • Publication number: 20120104396
    Abstract: An organic light emitting display apparatus comprises an active layer, a gate electrode, a pixel electrode, source and drain electrodes, an intermediate layer, and an opposite electrode. The gate electrode includes: a first insulating layer; first, second and third conductive layers; a fourth conductive layer protecting the third conductive layer; and a fifth conductive layer. The pixel electrode includes a first electrode layer formed on the first insulating layer, a second and a third electrode layer, a fourth electrode layer protecting the third electrode layer, and a fifth electrode layer. A second insulating layer is disposed between the source and drain electrodes. The intermediate layer is disposed between the opposite electrode and the pixel electrode, and prevents damage to the pixel electrode during the manufacturing process.
    Type: Application
    Filed: September 16, 2011
    Publication date: May 3, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventor: Sung-Chul Pyo
  • Publication number: 20120099042
    Abstract: Provided are a thin film transistor display panel, a liquid crystal display, and a manufacturing method therefor, that can prevent errors or omissions in rubbing due to a step between a pixel electrode and a data line, and the resulting light leakage, as well as increase the effective area ratio of a spacer and prevent shorts from occurring during at least some repair processes. The thin film transistor array panel includes: a first substrate; a gate line and a data line formed on the first substrate; a step preventing member formed on the data line to at least partially fill a volume positioned between the data line and a pixel electrode; and a spacer formed on the first substrate, wherein the spacer and the step preventing member comprise the same material.
    Type: Application
    Filed: February 11, 2011
    Publication date: April 26, 2012
    Inventors: Myung Sub Lee, Ji Young Jeong, Sun-Kyu Joo, Myung Jin Lee
  • Publication number: 20120097956
    Abstract: An organic light emitting display device includes a substrate; a first electrode layer formed on the substrate; an emission structure layer formed on the first electrode layer; an electron injection layer (EIL) formed immediately on the emission structure layer and comprising a composite layer of LiF:Yb; and a second electrode layer formed on the EIL.
    Type: Application
    Filed: August 5, 2011
    Publication date: April 26, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Young YUN, Seok-Gyu YOON, Chang-Ho LEE, Il-Soo OH, Hee-Joo KO, Se-Jin CHO, Hyung-Jun SONG, Sung-Chul KIM, Jong-Hyuk LEE
  • Patent number: 8154020
    Abstract: A photo-voltaic cell device includes a first electrode, an N-type doped silicon-rich dielectric layer, a P-type doped silicon-rich dielectric layer, and a second electrode. The N-type doped silicon-rich dielectric layer is disposed on the first electrode, and the N-type doped silicon-rich dielectric layer is doped with an N-type dopant. The P-type doped silicon-rich dielectric layer is disposed on the N-type doped silicon-rich dielectric layer, and the P-type doped silicon-rich dielectric layer is doped with a P-type dopant. The second electrode is disposed on the P-type doped silicon-rich dielectric layer. A display panel including the photo-voltaic cell device is also provided.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: April 10, 2012
    Assignee: Au Optronics Corporation
    Inventors: An-Thung Cho, Chia-Tien Peng, Yu-Cheng Chen, Hong-Zhang Lin, Yi-Chien Wen, Wei-Min Sun, Chi-Mao Hung, Chun-Hsiun Chen
  • Publication number: 20120080680
    Abstract: An organic light emitting display device includes a substrate, a plurality of unit pixels on the substrate, each unit pixel including a first region that emits light and a second region that transmits external light, thin film transistors (TFTs) disposed in the first region of each unit pixel, first electrodes disposed in the first region of each unit pixel, each first electrode being electrically connected to one of the TFTs, a second electrode facing the first electrodes, and commonly disposed in the unit pixels, and an organic layer interposed between the first electrodes and the second electrode, and including an emissive layer. With respect to two adjacent pixels of the plurality of unit pixels, the first region and the second region in one unit pixel are symmetrical with the first region and the second region in another adjacent unit pixel, and the second regions are connected to each other.
    Type: Application
    Filed: June 1, 2011
    Publication date: April 5, 2012
    Inventors: Jun-Ho Choi, Jin-Koo Chung, Seong-Min Kim
  • Publication number: 20120074415
    Abstract: Provided is a liquid crystal display device, in which: the gate lines include a first gate line and a second gate line for respectively outputting the scanning signals at two different scanning timings for each of scanning lines; and a unit pixel for color display, constituted by three pixels corresponding to a red (R) pixel, a green (G) pixel, and a blue (B) pixel arranged side by side, is formed in a region surrounded by the first gate line, the second gate line, and the drain lines, and the three pixels corresponding to the red (R) pixel, the green (G) pixel, and the blue (B) pixel are arranged in matrix for the each unit pixel.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 29, 2012
    Inventors: Takeshi Sato, Hirotaka Imayama