Light Coupled Transistor Structure Patents (Class 257/83)
  • Patent number: 7989822
    Abstract: This invention details how a low cost opto coupler can be made on Silicon On Insulator (SOI) using conventional integrated circuit processing methods. Specifically, metal and deposited insulating materials are use to realize a top reflector for directing light generated by a silicon PN junction diode to a silicon PN junction photo diode detector. The light generator or LED can be operated either in the avalanche mode or in the forward mode. Also, side reflectors are described as a means to contain the light to the LED-photo detector pair. Furthermore, a serpentine junction PN silicon LED is described for the avalanche mode of the silicon LED. For the forward mode, two LED structures are described in which hole and electrons combine in lightly doped regions away from heavily doped regions thereby increasing the LED conversion efficiency.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: August 2, 2011
    Inventor: Eugene Robert Worley
  • Patent number: 7985609
    Abstract: Provided is a light-emitting apparatus which can prevent a shadow mask from contacting a light-emitting medium to suppress damage of the medium, by using a conductive layer formed on a device isolation layer as a pressing member for the shadow mask, and can attain more secure conduction between a second electrode and an auxiliary electrode.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 26, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoyuki Ito
  • Patent number: 7977685
    Abstract: A light-emitting device is disclosed capable of reducing the variation of an emission spectrum depending on an angle of viewing a light extraction surface. More particularly, a light-emitting device is disclosed capable of preventing impurities from dispersing from a light-emitting element into a thin film transistor as well as reducing the variation of an emission spectrum depending on an angle of viewing a light extraction surface. The disclosed light-emitting device comprises a substrate; a first insulating layer provided over the substrate; a transistor provided over the first insulating layer; and a second insulating layer having a first opening portion so that the transistor is covered and the substrate is exposed; wherein a light-emitting element is provided inside the first opening portion.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: July 12, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Kawakami, Kaoru Tsuchiya, Takeshi Nishi, Yoshiharu Hirakata, Keiko Kida, Ayumi Sato, Shunpei Yamazaki
  • Patent number: 7968890
    Abstract: By providing appropriate TFT structures arranged in various circuits of the semiconductor device in response to the functions required by the circuits, it is made possible to improve the operating performances and the reliability of a semiconductor device, reduce power consumption as well as realizing reduced manufacturing cost and increase in yield by lessening the number of processing steps. An LDD region of a TFT is formed to have a concentration gradient of an impurity element for controlling conductivity which becomes higher as the distance from a drain region decreases. In order to form such an LDD region having a concentration gradient of an impurity element, the present invention uses a method in which a gate electrode having a taper portion is provided to thereby dope an ionized impurity element for controlling conductivity accelerated in the electric field so that it penetrates through the gate electrode and a gate insulating film into a semiconductor layer.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 28, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hideomi Suzawa, Koji Ono, Yasuyuki Arai
  • Patent number: 7964879
    Abstract: According to the present invention, a material having a light-shielding property is used for a bank layer surrounding the edge of a light-emitting element. Accordingly, light which is not reflected by an object to be read out can be prevented from entering an image pick-up element, and information on the object to be read out can be correctly read out. The display device mounted with a read function according to the present invention includes a thin film transistor and an image pick-up element over a substrate having an insulating surface, an insulating layer covering a thin film transistor and an image pick-up element, a light-emitting element provided over the insulating layer, and a bank layer having a light-shielding property surrounding the edge of the light-emitting element. The bank layer has an opening portion in a position overlapping with the image pick-up element.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: June 21, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 7960730
    Abstract: Provided is a method of fabricating a semiconductive oxide thin-film transistor (TFT) substrate. The method includes forming gate wiring on an insulation substrate; and forming a structure in which a semiconductive oxide film pattern and data wiring are stacked on the gate wiring, wherein the semiconductive oxide film pattern is selectively patterned to have channel regions of first thickness and source/drain regions of greater second thickness and where image data is coupled to the source regions by data wiring formed on the source regions. According to a 4-mask embodiment, the data wiring and semiconductive oxide film pattern are defined by a shared etch mask.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: June 14, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-hun Lee, Dong-ju Yang, Tae-hyung Ihn, Do-hyun Kim, Sun-young Hong, Seung-jae Jung, Chang-oh Jeong, Eun-guk Lee
  • Patent number: 7960742
    Abstract: A method of fabricating an active device array substrate is provided. A substrate having scan lines, data lines and active devices formed thereon is provided. Each of the active devices is electrically connected to the corresponding scan line and data line. An organic material layer is formed over the substrate to cover the scan lines, the data lines and the active devices. Then, a plasma treatment is performed to the surface of the organic material layer to form a number of concave patterns. The dimension of each of the concave patterns is smaller than one micrometer. Afterward, pixel electrodes are formed on the organic material layer and each of the pixel electrodes is electrically connected to one of the corresponding active devices.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: June 14, 2011
    Assignee: Au Optronics Corporation
    Inventors: Chen-Nan Chou, Feng-Lung Chang, Tin-Wen Cheng
  • Patent number: 7951628
    Abstract: A pixel structure includes a substrate, a first and a second patterned conductive layers, and a pixel electrode. The first patterned conductive layer, disposed on the substrate, includes at least one scan line, at least one gate, and at least one common electrode line. The second patterned conductive layer, disposed on the first patterned conductive layer, includes at least one data line, at least one source/drain, and at least one first patterned layer partly disposed on the common electrode line. The pixel electrode, disposed on the second patterned conductive layer, includes at least one first part and one second part. The first part partly covers the first patterned layer and the common electrode line. The second part, connected to the source/drain, covers the other part of the first patterned layer. The first and second patterned layers compose at least one first capacitance.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: May 31, 2011
    Assignee: Au Optronics Corporation
    Inventor: Chin-An Tseng
  • Patent number: 7943934
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the present invention comprises a substrate; a first signal line and a second signal line disposed on the substrate; a switching thin film transistor connected to the first signal line and the second signal line, and comprising a first insulating layer; a driving thin film transistor connected to the switching thin film transistor and comprising a second insulating layer; and a discharge thin film transistor connected to one of the first signal line and the second signal line, and comprising the first insulating layer and the second insulating layer.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Soo Yoon, Chong-Chul Chai, Joon-Chul Goh
  • Patent number: 7939828
    Abstract: A method for fabricating a pixel structure includes providing a substrate having a pixel area. A first metal layer, a gate insulator and a semiconductor layer are formed on the substrate and patterned by using a first half-tone mask or a gray-tone mask to form a transistor pattern, a lower capacitance pattern and a lower circuit pattern. Next, a dielectric layer and an electrode layer both covering the three patterns are sequentially formed and patterned to expose a part of the lower circuit pattern, a part of the lower capacitance pattern and a source/drain region of the transistor pattern. A second metal layer formed on the electrode layer and the electrode layer are patterned by using a second half-tone mask or the gray-tone mask to form an upper circuit pattern, a source/drain pattern and an upper capacitance pattern. A portion of the electrode layer constructs a pixel electrode.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 10, 2011
    Assignee: Au Optronics Corporation
    Inventor: Yu-Cheng Chen
  • Patent number: 7939835
    Abstract: The purpose of the invention is to improve reliability of a light emitting apparatus comprising TFTs and organic light emitting elements.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: May 10, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Murakami, Masayuki Sakakura, Toru Takayama
  • Patent number: 7935551
    Abstract: A method for manufacturing a sensor image may include forming a pixel array including a photodiode structure and an insulating film structure in an active area of a semiconductor substrate; forming a metal pad on the insulating film structure; forming a dielectric and/or etch stop film on the metal pad (and optionally over the pixel array); forming a protective layer on the dielectric and/or etch stop film; and forming a pad opening and a pixel opening by etching the protective layer.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 3, 2011
    Assignee: Dongbu HiTek Co., Ltd.
    Inventors: Ki Sik Im, Woo Seok Hyun
  • Patent number: 7928439
    Abstract: A thin film transistor (TFT) may include a substrate, a gate electrode on the substrate, a gate insulating layer on the gate electrode, and a semiconductor layer on the gate insulating layer. The semiconductor layer may include a top surface, a channel area aligned in a vertical direction with the gate electrode, a plurality of doped areas proximate to the channel area, and a plurality of non-doped areas. Source and drain electrodes may be on the top surface of the semiconductor layer aligned above respective ones of the plurality of non-doped areas of the semiconductor layer. A planarization layer may be on the gate insulating layer, the source and drain electrodes and the semiconductor layer channel area, and may include a plurality of openings respectively exposing the plurality of doped areas of the semiconductor layer and a portion of the source electrode and the drain electrode.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: April 19, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hee-Chul Jeon, Chul-Kyu Kang, Woo-Sik Jun, Jong-Hyun Choi
  • Patent number: 7928450
    Abstract: A pixel structure is disclosed. The pixel structure includes a substrate, a first data line having at least one end formed on the substrate, a first insulation layer overlying the first data line and exposing a part of the end of the first data line, a shielding electrode disposed on the first insulation layer and overlapped with the first data line, a second data line formed on the first insulation layer and electrically connected to the exposed end of the first data line, a second insulation layer overlying the shielding electrode and the second data line, and a pixel electrode formed on the second insulation layer and overlapped with the shielding electrode. The invention also provides a method for fabricating the pixel structure.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: April 19, 2011
    Assignee: Au Optronics Corp.
    Inventors: Hsiang-Lin Lin, Liu-Chung Lee, Kuo-Yu Huang
  • Patent number: 7910926
    Abstract: An electro-optical device includes a switching element with a gate electrode provided opposite to the channel region. The gate electrode has a ring-shaped structure that surrounds a junction region between the channel region and a source/drain region.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: March 22, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ishii
  • Patent number: 7897976
    Abstract: The invention of this application is a field-effect transistor type light-emitting device having an electron injection electrode, i.e. a source electrode, a hole injection electrode, i.e. a drain electrode, an emission active member disposed between the source electrode and the drain electrode so as to contact with both electrodes, and a field application electrode, i.e. a gate electrode, for inducing electrons and holes in the emission active member, which is disposed in the vicinity of the emission active member via an electrically insulating member or an insulation gap. The emission active member is made of an inorganic semiconductor material having both an electron transporting property and a hole transporting property.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: March 1, 2011
    Assignee: Hoya Corporation
    Inventors: Hiroshi Kawazoe, Satoshi Kobayashi, Yuki Tani, Hiroaki Yanagita
  • Patent number: 7897979
    Abstract: A light emission device manufactured by a method of forming a curved surface having a radius of curvature to the upper end of an insulator 19, exposing a portion of the first electrode 18c to form an inclined surface in accordance with the curved surface, and applying etching so as to expose the first electrode 18b in a region to form a light emission region, in which emitted light from the layer containing the organic compound 20 is reflected on the inclined surface of the first electrode 18c to increase the total take-out amount of light in the direction of an arrow shown in FIG.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: March 1, 2011
    Assignee: Semiconductor Energy laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takeshi Noda, Yoshinari Higaki
  • Patent number: 7888151
    Abstract: An array substrate for an LCD device includes a first TFT including a first semiconductor layer, a first gate electrode, wherein the first gate electrode is directly over the first semiconductor layer; a first protrusion extending from the first gate electrode along an edge of the first semiconductor layer; a second TFT including a second semiconductor layer, a second gate electrode, wherein the second gate electrode is directly over the second semiconductor layer; a second protrusion extending from the second gate electrode along an edge of the second semiconductor layer; a third TFT connected to crossed data and gate lines including a third semiconductor layer, a third gate electrode, wherein the third gate electrode is directly over the third semiconductor layer; a third protrusion extending from the third gate electrode along an edge of the third semiconductor layer; and a pixel electrode.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: February 15, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Su Hyuk Kang, Dai Yun Lee, Yong In Park, Young Joo Kim
  • Patent number: 7880180
    Abstract: The disclosed subject matter provides a composite semiconductor device which can include a common substrate, a first semiconductor light emitting structure, and a second semiconductor light emitting structure. The first semiconductor light emitting structure can include an epitaxial grown layer containing a light emitting layer formed on part of the common substrate either directly or via a bonding layer. The second semiconductor light emitting structure can be provided in a notch at at least one location to which the epitaxial grown layer is not bonded, or in a recess formed in the notch at one location. The disclosed subject matter also provides a method of manufacturing a composite semiconductor device having the above-described and other structures.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: February 1, 2011
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yasuhiro Tada, Akihiko Hanya
  • Patent number: 7880169
    Abstract: A display apparatus includes a gate electrode, a first insulating layer pattern formed over the gate electrode, a second insulating layer pattern formed over the first insulating layer pattern, exposing a portion of the first insulating layer, a semiconductor film pattern formed over the second insulating layer pattern and over the first insulating layer pattern, an impurity-doped semiconductor film pattern formed on the semiconductor film pattern, wherein the impurity-doped semiconductor film pattern contacts the top surface of the semiconductor film pattern and exposes a portion of the semiconductor film pattern formed over the gate electrode, a source electrode and a drain electrode each formed over a portion of the impurity doped semiconductor film pattern, a protection film pattern formed over the source electrode and the drain electrode in a TFT area, the protection film pattern having a contact hole over the drain electrode, a pixel electrode pattern formed on the protection film pattern and_electrical
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Myung-Koo Hur
  • Patent number: 7868367
    Abstract: A system and method for sensing image on CMOS. According to an embodiment, the present invention provide a CMOS image sensing pixel. The pixel includes an n-type substrate, which includes a first width and a first thickness. The pixel also includes a p-type epitaxy layer overlying the n-type substrate. The p-type epitaxy layer includes a second width and a second thickness. The second width is associated with one or more characteristics of a colored light. The pixel additionally includes an n-type layer overlying the p-type epitaxy layer. The n-type layer is associated with a third width and a third thickness. Additionally, the pixel includes an pn junction formed between the p-type epitaxy layer and the n-type layer. Moreover, the pixel includes a control circuit being coupled to the CMOS image sensing pixel.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: January 11, 2011
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Zhu Hong, Jim Yang
  • Patent number: 7863627
    Abstract: An object is to suppress decrease in luminance and appearance of flicker of a still image and to control a threshold voltage of a transistor for driving an EL element even in a state where the EL element continues to emit light for a certain period. An n-channel transistor and a p-channel transistor are provided as driving transistors for driving a light-emitting element, and a polarity of a potential which is supplied from a data line is reversed every given period and supplied to gates of the driving transistors in each pixel, whereby the threshold voltages of the driving transistors are controlled and change of luminance of the light-emitting element due to the threshold voltage shifts of the driving transistors can be reduced.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: January 4, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tatsuya Honda
  • Patent number: 7855388
    Abstract: An alternating current light-emitting device includes a substrate, a plurality of microdie light-emitting elements formed on the substrate, a rectifying element-dedicated member formed on a surface of a portion of microdie light-emitting elements, a rectifying unit formed on the rectifying element-dedicated member and provided with at least four rectifying elements forming a Wheatstone bridge circuit, and an electrically conductive structure electrically connecting the rectifying elements and the microdie light-emitting elements. With the rectifying unit being formed on the rectifying element-dedicated member, the rectifying elements are highly tolerant of reverse bias and feature low starting forward bias. Also, the present invention provides a method for fabricating an alternating current light-emitting device.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: December 21, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Hsi-Hsuan Yen, Wen-Yung Yeh
  • Patent number: 7847292
    Abstract: A flat panel display that can prevent a voltage drop of a driving power and, at the same time, minimizes the characteristic reduction of electronic devices located in a circuit region where various circuit devices are located includes: a substrate; an insulating film arranged on the substrate; a pixel region including at least one light emitting diode, the pixel region arranged on the insulating film and adapted to display an image; a circuit region arranged on the insulating film and including electronic devices adapted to control signals supplied to the pixel region; and a conductive film interposed between the substrate and the insulating film in a region corresponding to the pixel region and electrically connected to one electrode of the light emitting diode.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: December 7, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Bon Koo, Jae-Kyeong Jeong, Hyun-Soo Shin, Yeon-Gon Mo
  • Publication number: 20100296540
    Abstract: The CMOS field effect transistors, used in microprocessors and other digital VLSI circuits, face major challenges such as thin gate dielectrics leakage and scaling limits, severe short channel effects, limited performance improvement with scaling, complicated fabrication process with added special techniques, and surface mobility degradation. This disclosure proposes a new CMOS-compatible optoelectronic transistor. The current is much higher than the MOS transistors, due to the high carrier mobility with bulk transportation. The optoelectronic transistors are scalable to the sub-nanometer ranges without short channel effects. It is also suitable for low power applications and ULSI circuits. The new transistor consists of a laser or LED diode as drain or source, and a photo sensor diode (avalanche photo diode) as source or drain.
    Type: Application
    Filed: May 22, 2009
    Publication date: November 25, 2010
    Inventor: James Pan
  • Patent number: 7808009
    Abstract: There is provided a high quality liquid crystal panel having a thickness with high accuracy, which is designed, without using a particulate spacer, within a free range in accordance with characteristics of a used liquid crystal and a driving method, and is also provided a method of fabricating the same. The shape of a spacer for keeping a substrate interval constant is made such that it is a columnar shape, a radius R of curvature is 2 ?m or less, a height H is 0.5 ?m to 10 ?m, a diameter is 20 ?m or less, and an angle ? is 65° to 115°. By doing so, it is possible to prevent the lowering of an opening rate and the lowering of light leakage due to orientation disturbance.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: October 5, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Yuugo Goto, Yuko Kobayashi, Shunpei Yamazaki
  • Patent number: 7800099
    Abstract: A light emitting device capable of reducing degradation caused by dispersion of impurities such as moisture, oxygen, an alkaline metal, and an alkaline earth metal is provided. Specifically, a flexible light emitting device with an OLED formed on a plastic substrate is provided. In a light emitting device using a substrate, a circular polarizing plate has a single layer or two or more layers of barrier films formed of a compound or compounds selected from AlNXOY, AlXNY, and Al2O3, which is (are) capable of preventing oxygen and moisture from seeping into an organic light emitting layer of an OLED as well as preventing an alkaline metal, an alkaline earth metal, and other impurities from penetrating an active layer of a TFT.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: September 21, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunepi Yamazaki, Toru Takayama
  • Patent number: 7795808
    Abstract: TFTs are formed on a substrate. An interlayer insulation film is formed on the substrate to cover the TFTs. Lower layer portions of SD lines formed of a multi-layered film which are formed on the interlayer insulation film constitute a lower electrode of an organic EL layer. An uppermost layer of the SD line is formed of a chemically stable metal oxide film, and the SD layer is used as it is. On the other hand, as a lower electrode of an organic EL layer, an upper layer of the SD line is removed and an Al—Si, alloy film of the SD line is used. Due to such a constitution, it is possible to reduce a cost by shortening steps while holding the performance and the reliability of organic EL.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: September 14, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Toshiyuki Matsuura, Masahiro Tanaka, Sukekazu Aratani, Masao Shimizu
  • Patent number: 7777234
    Abstract: A light-receiving element has a photodiode formed in part of the top surface of a semiconductor substrate so as to function as a light-receiving region, and has a light-emitting element mount electrode formed on top of the semiconductor substrate where the light-receiving region is not formed. A high concentration impurity layer is formed below the top surface of the semiconductor substrate along the peripheral edges of the light-emitting element mount electrode. This helps prevent the voltage applied to the light-emitting element mount electrode from influencing the output of the light-receiving element. Alternatively, a photonic semiconductor device has a light-emitting element and a light-receiving element, and has the light-receiving region of the light-receiving element formed parallel to the direction in which the light-emitting element emits light.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: August 17, 2010
    Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.
    Inventors: Susumu Nishimura, Shoji Honda, Koji Ueyama
  • Patent number: 7772021
    Abstract: Provided is a method of fabricating a semiconductive oxide thin-film transistor (TFT) substrate. The method includes forming gate wiring on an insulation substrate; and forming a structure in which a semiconductive oxide film pattern and data wiring are stacked on the gate wiring, wherein the semiconductive oxide film pattern is selectively patterned to have channel regions of first thickness and source/drain regions of greater second thickness and where image data is coupled to the source regions by data wiring formed on the source regions. According to a 4-mask embodiment, the data wiring and semiconductive oxide film pattern are defined by a shared etch mask.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 10, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-hun Lee, Dong-ju Yang, Tae-hyung Ihn, Do-hyun Kim, Sun-young Hong, Seung-jae Jung, Chang-oh Jeong, Eun-guk Lee
  • Patent number: 7768011
    Abstract: An electro-luminescence device including an electro-luminescence element and a thin film transistor electrically connected to the electro-luminescence element. The thin film transistor includes a gate electrode formed over a substrate, an insulating layer formed over the gate electrode, and a first semiconductor pattern formed over the insulating layer. An etch stop layer is formed over the first semiconductor layer. A second semiconductor pattern is formed over the etch stop layer at one side of the etch stop layer, and a third semiconductor pattern is formed over the etch stop layer at another side of the etch stop layer. A source electrode is formed over the second semiconductor pattern, and a drain electrode is formed over the third semiconductor pattern.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: August 3, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Joon-Hoo Choi, In-Su Joo, Beom-Rak Choi, Jong-Moo Huh
  • Patent number: 7763891
    Abstract: A pixel structure including an active device, a common line pattern, a protective layer, a pixel electrode, and a patterned semiconductor layer is provided. The active device is disposed on a substrate. In addition, the common line pattern is disposed on the substrate and covered with an insulation layer. The protective layer covers the active device and a part of the insulation layer. The protective layer has a contact window exposing the active device. The pixel electrode is disposed on the protective layer and electrically connected to the active device through the contact window. The patterned semiconductor layer is disposed on the insulation layer above the common line pattern. The patterned semiconductor layer is located between the common line pattern and the pixel electrode.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: July 27, 2010
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Yuan-Hao Chang, Chia-Ming Chiang
  • Patent number: 7755092
    Abstract: A display includes a thin film transistor, a repair structure for repairing a defect in a signal line coupled to the thin film transistor, the repair structure including a first repair metal layer and a second repair metal layer. The transistor includes a gate electrode, a source electrode, and a drain electrode. A dielectric layer is disposed above the thin film transistor and the repair structure, the dielectric layer defining a repair opening to expose the second repair metal layer, the dielectric layer also defining a contact window that exposes at least one of the source and drain electrodes. A floating electrode is electrically connected to the second repair metal layer through the repair opening, the floating electrode being electrically floated.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: July 13, 2010
    Assignee: Chimei Innolux Corporation
    Inventor: Lih-Nian Lin
  • Patent number: 7737444
    Abstract: The invention provides a display device and an electronic device, each of which has one of a structure in which a substrate provided with a light emitting element which performs bottom light emission and a substrate provided with a light emitting element which performs top light emission are attached, and a structure in which two substrates, each of which is provided with a light emitting element which performs bottom light emission are attached. By attaching two substrates, each of which is provided with a light emitting element, displays are provided on the front and back of the display device, thus a high added value can be realized. One of the two substrates, each of which is provided with a light emitting element also functions as a sealing substrate for another substrate, thus a compact, thin, and lightweight display device can be obtained.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: June 15, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mitsuaki Osame, Aya Anzai, Jun Koyama, Yasuko Watanabe, Shunpei Yamazaki
  • Patent number: 7737449
    Abstract: The present invention provides a highly stable light emitting device having high light-emitting efficiency (light-extraction efficiency) with high luminance and low power consumption, and a method of manufacturing thereof. A partition wall and a heat-resistant planarizing film are formed of a same material so as to be well-adhered to each other, thereby reducing material costs. Either an anode or a cathode is formed on the heat-resistant planarizing film. The partition wall and the heat-resistant planarizing film is adhered to each other without inserting a film having different refractive index therebetween, and therefore reflection of light is not caused in an interface.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: June 15, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd
    Inventors: Shunpei Yamazaki, Masayuki Sakakura, Masaharu Nagai, Yutaka Matsuda, Keiko Saito, Hisao Ikeda
  • Patent number: 7732824
    Abstract: Failure light emission of an EL element due to failure film formation of an organic EL material in an electrode hole 46 is improved. By forming the organic EL material after embedding an insulator in an electrode hole 46 on a pixel electrode and forming a protective portion 41b, failure film formation in the electrode hole 46 can be prevented. This can prevent concentration of electric current due to a short circuit between a cathode and an anode of the EL element, and can prevent failure light emission of an EL layer.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: June 8, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshimitsu Konuma, Junya Maruyama
  • Patent number: 7732814
    Abstract: A liquid crystal display (LCD) device includes a gate line and a data line crossing each other to define a pixel region on a first substrate, a thin film transistor connected to the gate line and the data line, a first protrusion and a second protrusion formed on the first substrate, a pixel electrode connected to the thin film transistor in the pixel region, a first patterned spacer and a second patterned spacer formed on a second substrate facing the first substrate, wherein the first patterned spacer corresponds to the first protrusion, and the second patterned spacer corresponds to the second protrusion.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: June 8, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Na-Kyung Lee, Sung-Lim Nam
  • Patent number: 7723734
    Abstract: An LTPS-LCD structure and a method for manufacturing the structure are provided. The structure comprises a substrate where a plurality of pixels are formed thereon. Each of these pixels comprises a control area, a capacitance area, and a display area. The structure is initially formed with a transparent electrode on the substrate, followed by a control device, a capacitance storage device. The display unit is then formed on the control area, the capacitance area, and the display area, respectively. As a result, the capacitance of the structure can be enhanced and the manufacturing processes of masks can be reduced.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: May 25, 2010
    Assignee: Au Optronics Corp.
    Inventor: Yi-Sheng Cheng
  • Patent number: 7719023
    Abstract: A light emitting device includes a plurality of chips efficiently disposed in a limited space of an opening that has an approximately elliptical or elongate-circular opening shape. The device includes a lead having a slit formed between a portion for bonding a wire to and a portion for mounting chips on, thereby to prevent extrusion of an adhesive and eliminate defective bonding.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 18, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hiroaki Oshio
  • Patent number: 7709846
    Abstract: The purpose of the invention is to improve reliability of a light emitting apparatus comprising TFTs and organic light emitting elements.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: May 4, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Murakami, Masayuki Sakakura, Toru Takayama
  • Patent number: 7710019
    Abstract: An organic light-emitting diode (OLED) display includes a substrate, an auxiliary electrode disposed on the substrate, a first signal line disposed on the substrate, a second signal line crossing the first signal line, a driving voltage line disposed on the substrate, a first thin film transistor connected to the first signal line and the second signal line, a second thin film transistor connected to the first thin film transistor and the driving voltage line, a first electrode connected to the second thin film transistor, a second electrode facing the first electrode, and a light-emitting member disposed between the first electrode and the second electrode. The auxiliary electrode is connected to one of the driving voltage line and the second electrode.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: May 4, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Chul Jung, Beohm-Rock Choi, Nam-Deog Kim
  • Patent number: 7696513
    Abstract: The present invention provides a light-emitting device, including: a pixel region provided on a substrate and including a blue pixel region, a green pixel region, and a red pixel region which correspond to lights of three primary colors of blue, green and red light, respectively, the pixel region including: a thin-film transistor having a source electrode, a drain electrode, a gate electrode, a gate insulating film, and an active layer; a light-emitting layer; and a lower electrode and a counter electrode for sandwiching the light-emitting layer therebetween, wherein the active layer includes an oxide; the drain electrode is electrically connected with a part of the light-emitting layer; and the thin-film transistor is arranged in a region other than the blue pixel region on the substrate.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: April 13, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Hayashi, Tatsuya Iwasaki
  • Patent number: 7683382
    Abstract: An organic light emitting diode display includes a plurality of pixels. Each pixel includes a light emitting element and a driving transistor coupled to the light emitting element. The pixels may be arranged in a matrix. The pixels include first pixels, second pixels, and third pixels, the driving transistors of the first to the third pixels occupy different areas, and the light emitting elements of the first to the third pixels occupy substantially equal area.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: March 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Chul Jung, In-Su Joo
  • Patent number: 7679091
    Abstract: A semiconductor device, particularly, a photoelectric conversion element having a semiconductor layer is demonstrated. The photoelectric conversion element of the present invention comprises, over a substrate, a photoelectric conversion layer and first and second electrodes which are electrically connected to the photoelectric conversion layer. The photoelectric conversion element further comprises a wiring board over which a third and fourth electrodes are provided. The characteristic point of the present invention is that a bonding layer, which readily forms an alloy with a conductive material, is formed over the first and second electrodes. This bonding layer improves the bonding strength between the first and third electrodes and the second and fourth electrode, which contributes to the prevention of the connection defect between the substrate and the wiring board and consequentially to high reliability of the photoelectric conversion element.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 16, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Naoto Kusumoto, Kazuo Nishi, Yuusuke Sugawara
  • Patent number: 7671366
    Abstract: The present invention relates to a thin film transistor. The thin film transistor includes a semiconductor having first, second, third, fourth, and fifth electrode regions arranged in a direction and spaced apart from each other and first, second, third, and fourth offset regions disposed between the first, second, third, fourth, and fifth electrode regions, respectively. An input electrode is connected to the third electrode region, an output electrode is connected to the first and fifth electrode regions, an insulating layer is disposed on the semiconductor, and a control electrode is disposed on the insulating layer and the second and fourth electrode regions.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Joon-Chul Goh
  • Patent number: 7663143
    Abstract: A mask containing apertures therein which is used for fabricating a channel of a thin film transistor (TFT), wherein the pixel charging time for a TFT in a high-resolution liquid crystal display (LCD) device is reduced by minimizing the length of the channel in the TFT when the active region is made of amorphous silicon. The length of the channel can be minimized by exposing light through the apertures in an exposure mask when forming the channel.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: February 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Kwang-Jo Hwang
  • Patent number: 7659541
    Abstract: A liquid crystal display, in accordance with the present invention, includes a first substrate having a thin film transistor and a first electrode formed thereon. The first electrode is electrically connected to the thin film transistor. A first insulating layer is formed on the first substrate including the thin film transistor and the first electrode and a window is formed in the first insulating layer, the window exposing a predetermined region of the first electrode. A second electrode is provided on the first insulating layer and electrically connected to the first electrode. A second substrate includes a third electrode formed thereon. A first gap is formed between a surface of the third electrode and a surface of the predetermined region of the first electrode, and a second gap is formed between the surface of the third electrode and a surface of the second electrode. A liquid crystal layer is interposed between the first gap and the second gap.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 9, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Kyu Jang, Jae-Hyun Kim, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Young-Nam Yun
  • Patent number: 7652309
    Abstract: A CCD solid state imaging module comprises a CCD area sensor, a substrate bias voltage setting device formed on said CCD area sensor for outputting a voltage, and a substrate bias voltage outputting device formed on a chip other than said CCD area sensor for outputting a substrate bias voltage of said CCD area sensor by selecting one voltage level from a plurality of voltages based on the voltage output by said substrate bias voltage setting device. A solid state imaging module suitable for a CCD area sensor having multiple driving modes can be provided.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: January 26, 2010
    Assignee: Fujifilm Corporation
    Inventor: Jun Hasegawa
  • Patent number: 7649203
    Abstract: A method of fabricating a pixel structure of a thin film transistor liquid crystal display is provided. A transparent conductive layer and a first metallic layer are sequentially formed over a substrate. The first metallic layer and the transparent conductive layer are patterned to form a gate pattern and a pixel electrode pattern. A gate insulating layer and a semiconductor layer are sequentially formed over the substrate. A patterning process is performed to remove the first metallic layer in the pixel electrode pattern while remaining the gate insulating layer and the semiconductor layer over the gate pattern. A second metallic layer is formed over the substrate. The second metallic layer is patterned to form a source/drain pattern over the semiconductor layer. A passivation layer is formed over the substrate and then the passivation layer is patterned to expose the transparent conductive layer in the pixel electrode pattern.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: January 19, 2010
    Assignee: Au Optronics Corp
    Inventors: Mao-Tsun Huang, Tzufong Huang
  • Patent number: 7633164
    Abstract: The present invention includes a liquid crystal display device having an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and includes, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, in the present invention, a liquid crystal display device has an electrode terminal of a TFT substrate, wherein the electrode is formed on an insulator and is comprised of a conductive layer mainly consisting of copper and an oxide covering an outer part, further the oxide is a layered structure of transparent electrodes, the layered portion having ohmic contact, and the oxide mainly consists of manganese oxide.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: December 15, 2009
    Assignees: Tohoku University, Advanced Interconnect Materials LLC
    Inventors: Junichi Koike, Hideaki Kawakami