With Particular Gate Electrode Structure Patents (Class 349/46)
  • Publication number: 20150138482
    Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.
    Type: Application
    Filed: January 7, 2015
    Publication date: May 21, 2015
    Inventors: Sung-Kyu HONG, Young-Chol YANG, Jong-Lae KIM, Hee-Seob KIM
  • Publication number: 20150138481
    Abstract: The organic insulating film has an opening through which the drain electrode is partially exposed. The opening has a side wall extending from above the drain electrode. The pixel electrode has a contact portion that is in contact with the drain electrode in the opening of the organic insulating film, a wiring portion that extends directly on the side wall of the organic insulating film from the contact portion, and a body portion that is linked to the wiring portion and is located on the organic insulating film. The interlayer insulating film covers the pixel electrode. The interlayer insulating film covers the source electrode and directly covers the semiconductor film between the source-electrode side surface and the drain-electrode side surface. The common electrode has fringes opposed to the pixel electrode via the interlayer insulating film.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 21, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazushi YAMAYOSHI, Takeshi SONODA, Shinsuke OGATA
  • Publication number: 20150131021
    Abstract: An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Inventors: Hajime KIMURA, Atsushi UMEZAKI
  • Publication number: 20150131020
    Abstract: This disclosure provides a display panel and a display apparatus using the display panel. The display panel includes: a substrate; a first electrode formed on the substrate; a first insulation layer formed on the first electrode; a gate electrode formed on the first insulation layer and having an inclined lateral plane; a second insulation layer formed on the gate electrode and covering the inclined lateral plane; an active layer formed on the second insulation layer corresponding to the inclined lateral plane and electrically connected to the first electrode; and a second electrode electrically connected to the active layer; wherein the inclined lateral plane has an angle of between 30 and 90 degrees relative to the surface of the substrate.
    Type: Application
    Filed: October 14, 2014
    Publication date: May 14, 2015
    Inventor: MING-CHIEH CHANG
  • Publication number: 20150124190
    Abstract: To provide a liquid crystal display device capable of controlling deterioration of contrast even in the case where an opening is formed in an organic flattened film and the film has unevenness. In the liquid crystal display device that includes a TFT substrate, a CF substrate, and liquid crystal sandwiched between the TFT substrate and the CF substrate and that drives the liquid crystal with a lateral electric field, the TFT substrate has the organic flattened film in which a through hole for contacting a source electrode of the TFT and a pixel electrode and a sectional shape of the through hole is asymmetrical between a side on which the pixel electrode extends and the other side.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Inventors: Hiroaki KOMATSU, Takanori NAKAYAMA, Saori SUGIYAMA
  • Patent number: 9024312
    Abstract: Disclosed is a substrate for a flexible device which, when a TFT is produced on a flexible substrate in which a metal layer and a polyimide layer are laminated, can suppress deterioration of the electrical performance of the TFT due to the surface irregularities of the metal foil surface and can suppress detachment or cracks of the TFT. Also disclosed is a substrate for a thin film element which has excellent surface smoothness and is capable of suppressing deterioration of the characteristics of thin film elements. Also disclosed are methods for manufacturing substrates for thin film elements.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: May 5, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shunji Fukuda, Katsuya Sakayori, Keita Arihara, Koji Ichimura, Kei Amagai
  • Patent number: 9025103
    Abstract: A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: May 5, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hideo Tanabe, Masaru Takabatake, Toshiki Kaneko, Atsushi Hasegawa, Hiroko Sehata
  • Publication number: 20150109018
    Abstract: A liquid crystal display and a method for testing the liquid crystal display are disclosed. The liquid crystal display includes a TFT substrate including M scan lines and N data lines, a drive power line, and a switch unit adapted to connect the drive power line to the M scan lines under control of a control signal during a detection of a source of Mura of the liquid crystal display. The testing method includes: applying the control signal to the switch unit; applying a data signal to the N data lines; determining the source of the Mura of the liquid crystal display according to a current brightness of the liquid crystal display; and stopping applying the control signal to the switch unit.
    Type: Application
    Filed: March 17, 2014
    Publication date: April 23, 2015
    Applicants: Tianma Micro-Electronics Co., Ltd., Chengdu Tianma Micro-Electronics Co., Ltd.
    Inventors: Mouxing MA, Bo Wu, Zhijie Zou, Yingru Hu
  • Publication number: 20150109553
    Abstract: A display device with excellent display quality is provided. The display device includes a transistor over a first substrate, an inorganic insulating film in contact with the transistor, and an organic insulating film in contact with the inorganic insulating film. The transistor includes a gate electrode over the first substrate, an oxide semiconductor film overlapping with the gate electrode, a gate insulating film in contact with one surface of the oxide semiconductor film, and a pair of electrodes in contact with the oxide semiconductor film. The inorganic insulating film is in contact with the other surface of the oxide semiconductor film. The organic insulating film overlaps with the oxide semiconductor film with the inorganic insulating film provided therebetween and is separated. Note that the thickness of the organic insulating film is preferably greater than or equal to 500 nm and less than or equal to 10 ?m.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Inventor: Daisuke KUBOTA
  • Publication number: 20150103284
    Abstract: In a display pixel of an element substrate of an electro-optical device, a first gate electrode of a first transistor is electrically connected to a scanning line via a first contact hole of an insulating film. In a dummy pixel, a light blocking layer of the same layer as the scanning line is formed, and a second gate electrode of a second transistor is electrically connected to a scanning line via a second contact hole. A gap between the end portion of the second contact hole and the end portion of the scanning line is wider than the gap between the end portion of the first contact hole and the end portion of the scanning line.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 16, 2015
    Inventor: Hitoya Nagasawa
  • Publication number: 20150103283
    Abstract: A display device includes a first common bus line electrically connected to common wirings, a second common bus line electrically connected to the first common bus line, and connection wirings for supplying a common voltage to the second common bus line. The second common bus line is divided into a plurality of division wirings. A column direction width of a first division wiring connected to a first connection wiring close to the first common bus line is smaller than a column direction width of a second division wiring connected to a second connection wiring far from the first common bus line.
    Type: Application
    Filed: March 6, 2014
    Publication date: April 16, 2015
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masahiro ISHII, Hiroaki IWATO, Daisuke KAJITA
  • Patent number: 9006744
    Abstract: An array substrate of a liquid crystal display device and a method of fabricating the array substrate. A gate electrode of a thin film transistor of the array substrate is formed. The gate electrode has an edge region surrounding an interior region of the gate electrode and the edge region of the gate electrode is thicker than the interior region of the gate electrode. A semiconductor layer is formed over the gate electrode. A source electrode and a drain electrode of the thin film transistor are formed that define a channel region in the semiconductor layer. The channel region is located over the interior region of the gate electrode. Additionally, the gate electrode may be formed with a half-tone mask that results in the edge region of the gate electrode being thicker than the interior region of the gate electrode.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: April 14, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Seok Lee, Jae Chang Kwon, Yu Ri Shim, Min Bo Kim
  • Publication number: 20150098041
    Abstract: A liquid crystal display includes a first substrate, a second substrate facing the first substrate with a predetermined interval therebetween, a liquid crystal material filled between the first substrate and the second substrate, a column spacer disposed at the second substrate and maintaining the predetermined interval between the first substrate and the second substrate, a passivation layer disposed at the first substrate, a pixel electrode disposed on the passivation layer; and a fixing protrusion which is disposed on the first substrate, is positioned at an opposing surface of the column spacer and includes at least one of a lower layer including the passivation layer and an upper layer including the pixel electrode.
    Type: Application
    Filed: June 18, 2014
    Publication date: April 9, 2015
    Inventors: Min-Sik JUNG, Byung-Chul KIM, Young Gu KIM, Hwa Sung WOO, Baek Kyun JEON
  • Patent number: 9001299
    Abstract: A low-resistance wiring structure and a liquid crystal display are disclosed. The liquid crystal display includes a first substrate; a thin film transistor (TFT) formed on the first substrate and formed of a gate wiring, a data wiring and a semiconductor layer; and a second substrate attached to the first substrate in a facing manner, wherein at least one of the gate wiring and the data wiring is formed as a first wiring made of copper, a second wiring made of a barrier metal preventing spreading of copper, and a metal oxide film pattern formed between the first and second wirings. A MO/Cu wiring structure is implemented by using pure molybdenum, so that the low-resistance wiring structure with high reliability can be formed at a low cost.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 7, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Jung Yang, Gyu-Won Han
  • Patent number: 9001285
    Abstract: An electronic device comprises a housing and a display panel installed in the housing. The display panel comprises a first substrate, a second substrate disposed opposite to the first substrate and a display medium disposed between the first substrate and the second substrate. The first substrate comprises a first substrate body, pixel units arranged in an array on the first substrate body, data lines disposed on the first substrate body and electrically connected to the pixel units, a first insulation layer and scan lines disposed on the first substrate body and electrically connected to the pixel units. Each of the scan lines has a first part and a second part connecting to the first part. The first parts of the scan lines are interlaced with the data lines. The second parts of the scan lines are substantially overlapped with the data lines with the first insulation layer disposed therebetween.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: April 7, 2015
    Assignee: HTC Corporation
    Inventor: Weng-Chang Shen
  • Patent number: 9001290
    Abstract: A polarizer includes a substrate, and a first metal layer and a second metal layer disposed on the substrate. The first metal layer includes a plurality of protrusions of a wire grid pattern. Each protrusion has a first width and adjacent protrusions are spaced apart by a second width. The second metal layer is disposed on each of the protrusions of the first metal layer, and includes molybdenum (Mo) and/or titanium (Ti).
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae-Young Lee, Moon-Jung An, Su-Mi Lee, Gug-Rae Jo, Eun-Jung Kim, Jung-Gun Nam, Dae-Hwan Jang, Hyung-Bin Cho, Atsushi Takakuwa
  • Publication number: 20150092135
    Abstract: An array substrate includes a unit pixel group having first and second sub-pixel rows. The array substrate includes a plurality of gate lines extending along a first direction and adjacent to each other on a base substrate, a plurality of gate electrodes electrically coupled to the gate lines, a plurality of semiconductor patterns overlapping the gate electrodes, a plurality of data lines extending along a second direction and electrically coupled to first portions of the semiconductor patterns, a plurality of drain electrode patterns electrically coupled to second portions of the semiconductor patterns, and a plurality of pixel electrodes electrically coupled to the drain electrodes. The second portion of the semiconductor pattern spaced from the first portion thereof. The gate lines and the data lines are bent. Sub-pixels in the first sub-pixel row have opening areas that are different in size than that of sub-pixels in the second sub-pixel row.
    Type: Application
    Filed: September 18, 2014
    Publication date: April 2, 2015
    Inventor: Mu-Kyung Jeon
  • Publication number: 20150092133
    Abstract: Provided is a display device, in which: a center position of a row-wise width of a black matrix located between a red pixel and a green pixel is displaced toward a red pixel side from the center position of a row-wise line width of a data line overlapping with the black matrix in a plan view; and the center position of the row-wise width of the black matrix located between the green pixel and a blue pixel is displaced toward a blue pixel side from the center position of the row-wise line width of the data line overlapping with the black matrix in a plan view.
    Type: Application
    Filed: February 25, 2014
    Publication date: April 2, 2015
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Daisuke KAJITA
  • Publication number: 20150092136
    Abstract: A disclosed liquid crystal display includes a substrate with a gate electrode, a gate insulation film, an active layer, a source electrode, a drain electrode, and a first passivation film formed on the substrate. An organic insulation film having a first contact hole and a common electrode having a second contact hole are formed on the first passivation film using a single mask. The display also includes a second passivation film on the common electrode, and a pixel electrode on the second passivation film and connected to the drain electrode via the contact hole through the second passivation film. The top surface of the organic insulation film adjacent to a side edge of the organic insulation film is uncovered by the common electrode.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Minjoo KIM, Soyoung NOH, Yongil KIM, Taehwan KIM
  • Publication number: 20150092134
    Abstract: An array substrate, a LCD panel and a display device are disclosed. The array substrate includes: a substrate, a plurality of pixels disposed on the substrate and defined by a plurality of gate lines and a plurality of data lines. A common electrode and a pixel electrode are disposed in each pixel region. Two pixels at adjacent rows in a same column form a pixel set. A first gate line and a second gate line are disposed between the two pixels of the pixel set. The data line is disposed on the same side of the two pixels. A first switch transistor and a third switch transistor are disposed in one pixel region of the pixel set and at least a second switch transistor is disposed in the other pixel region.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 2, 2015
    Inventors: Qinghua Jiang, Feng Qin, Xiaohe Li, Xianjie Shao, Yong Liu
  • Patent number: 8994891
    Abstract: A touch panel whose power consumption can be reduced is provided, and an increase in the manufacturing cost of the touch panel is prevented. A photosensor which includes a light-receiving element including a non-single-crystal semiconductor layer between a pair of electrodes and a transistor including an oxide semiconductor layer in a channel formation region is provided. A touch panel which includes a plurality of pixels and the photosensor adjacent to at least one of the plurality of pixels is provided. Each of the plurality of pixels includes a pair of terminals. One of the pair of terminals is a reflective conductive film. Alternatively, each of the pair of terminals is a light-transmitting conductive film.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 31, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama
  • Publication number: 20150085219
    Abstract: The present invention teaches a TFT-LCD array substrate manufacturing method: a) forming a gate electrode, a gate electrode insulator layer, an active layer, a source electrode and a drain electrode, a passivation layer, and a passivation layer via on top of the drain electrode on a glass substrate; b) depositing an ITO film on the glass substrate processed by the step a), removing through exposure and development the photo resist in a TFT area outside the passivation layer via and a part of the photo resist in a pixel area where gaps are to be formed, and revealing the ITO film outside the passivation layer via in the TFT area; c) removing a remaining photo resist in the pixel area where gaps are to be formed using a fourth dry etch, so that the ITO film on the gaps to be formed is revealed; d) removing the revealed ITO film using a third wet etch; and e) peeling the photo resist not yet removed, and forming an ITO electrode that is connected to the passivation layer via.
    Type: Application
    Filed: October 21, 2013
    Publication date: March 26, 2015
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Li Chai
  • Publication number: 20150085215
    Abstract: The TFT substrate of this liquid crystal display device has: a first gate bus line and a second gate bus line; a first data bus line; a first TFT and second TFT that are respectively connected to the first and second gate bus line and are both connected to the first data bus line; and a first pixel electrode and second pixel electrode that are respectively connected to the first TFT and the second TFT through a contact hole. The first and second gate bus line traverse the first pixel electrode and the second pixel electrode, and a black matrix has a portion that integrally covers the first TFT and the contact hole, and a portion that integrally covers the second TFT and the contact hole.
    Type: Application
    Filed: April 4, 2013
    Publication date: March 26, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Masahiro Yoshida
  • Patent number: 8988624
    Abstract: Disclosed embodiments relate to a thin-film transistor (TFT) for use in a display device. The display device may include a liquid crystal display (LCD) panel having multiple pixels arranged in rows and column, with each row corresponding to a gate line and each column corresponding to a source line. Each of the pixels includes a pixel electrode and a TFT. The TFT may include a metal oxide semiconductor channel between a source and drain. For each TFT, holes may be formed in the gate line in a region beneath the source and/or the drain. The holes may be formed such that the source and drain only partially overlap the holes. The presence of the holes reduces the area of the gate line, which may reduce parasitic capacitance and improve loading. This may provide improved panel performance, which may reduce the appearance of certain visual artifacts.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 24, 2015
    Assignee: Apple Inc.
    Inventors: Chun-Yao Huang, Young Bae Park, Shih Chang Chang
  • Publication number: 20150077680
    Abstract: A method of manufacturing a display substrate includes forming a plurality of gate lines, a plurality of data lines and a plurality of transistors on a base substrate, forming an insulating layer on the base substrate on which the transistors are formed and forming a first pixel electrode on the insulating layer in a first area of a pixel area. The pixel area is divided into the first area and a second area.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 19, 2015
    Inventors: BYEONG-HEE WON, JOON-HAK OH
  • Publication number: 20150070620
    Abstract: In a first substrate, a reflective first common electrode is located on the first and second source lines and extending toward a region between the first and second source lines so as to form an aperture portion. A transmissive pixel electrode is arranged in a pixel defined by the first gate line, the second gate line, the first source line and the second source line and electrically connected with a switching element. The transmissive pixel electrode includes a first end extending along the first and second source lines so as to face the first common electrode. A second substrate includes a second common electrode arranged facing the pixel electrode and set to the same potential as the first common electrode. A liquid crystal layer is held between vertical alignment films formed on the first substrate and the second substrate.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 12, 2015
    Applicant: Japan Display Inc.
    Inventor: Jin HIROSAWA
  • Publication number: 20150070621
    Abstract: By increasing an interval between electrodes which drives liquid crystals, a gradient of an electric field applied between the electrodes can be controlled and an optimal electric field can be applied between the electrodes. The invention includes a first electrode formed over a substrate, an insulating film formed over the substrate and the first electrode, a thin film transistor including a semiconductor film in which a source, a channel region, and a drain are formed over the insulating film, a second electrode located over the semiconductor film and the first electrode and including first opening patterns, and liquid crystals provided over the second electrode.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 12, 2015
    Inventor: Hajime Kimura
  • Publication number: 20150062476
    Abstract: A display substrate includes thin film transistors, first common voltage lines, and second common voltage lines. Each thin film transistor includes a gate electrode, a source electrode, and an annulus-shaped drain electrode. The first common voltage lines are disposed adjacent to first sides of the gate electrodes. The second common voltage lines are disposed adjacent to second sides of the gate electrodes.
    Type: Application
    Filed: March 27, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Young-Wan SEO, Yeong-Keun KWON, Ji-Sun KIM, Chong-Chul CHAI
  • Publication number: 20150062477
    Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Ryo HATSUMI, Daisuke KUBOTA, Hiroyuki MIYAKE
  • Patent number: 8969875
    Abstract: The present invention relates to a thin film transistor substrate and method for fabricating the same which can secure an alignment margin and reduce the number of mask steps. A thin transistor substrate according to the present invention includes a gate line and a data line crossing each other to define a pixel, a gate metal pattern under the data line, a thin film transistor having a gate electrode, a source electrode and a drain electrode in the pixel, and a pixel electrode connected to the drain electrode of the thin film transistor by a connection electrode, wherein the data line has a plurality of first slits to disconnect the gate metal pattern from the gate line.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: March 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Seung Hee Nam
  • Publication number: 20150055050
    Abstract: To provide a circuit used for a shift register or the like. The basic configuration includes first to fourth transistors and four wirings. The power supply potential VDD is supplied to the first wiring and the power supply potential VSS is supplied to the second wiring. A binary digital signal is supplied to each of the third wiring and the fourth wiring. An H level of the digital signal is equal to the power supply potential VDD, and an L level of the digital signal is equal to the power supply potential VSS. There are four combinations of the potentials of the third wiring and the fourth wiring. Each of the first transistor to the fourth transistor can be turned off by any combination of the potentials. That is, since there is no transistor that is constantly on, deterioration of the characteristics of the transistors can be suppressed.
    Type: Application
    Filed: October 9, 2014
    Publication date: February 26, 2015
    Inventor: Atsushi Umezaki
  • Publication number: 20150055049
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a pixel electrode disposed on the first substrate, a storage electrode line which is close to edges of the pixel electrode and spaced apart from the pixel electrode, a common electrode disposed on the second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, where the common electrode includes a first cutout having a cross shape, and the pixel electrode includes a second cutout which is close to at least one of the edges of the pixel electrode and disposed along the edge.
    Type: Application
    Filed: January 8, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Oh Jeong KWON, Hyeok Jin LEE, Jae Hong PARK, Heung Shik PARK, Ki Chul SHIN
  • Publication number: 20150049278
    Abstract: To provide a liquid crystal display device having high quality display by obtaining a high aperture ratio while securing a sufficient storage capacitor (Cs), and at the same time, by dispersing a load (a pixel writing-in electric current) of a capacitor wiring in a timely manner to effectively reduce the load. A scanning line is formed on a different layer from a gate electrode and the capacitor wiring is arranged so as to be parallel with a signal line. Each pixel is connected to the individually independent capacitor wiring via a dielectric. Therefore, variations in the electric potential of the capacitor wiring caused by a writing-in electric current of a neighboring pixel can be avoided, whereby obtaining satisfactory display images.
    Type: Application
    Filed: October 29, 2014
    Publication date: February 19, 2015
    Inventors: Hiroshi SHIBATA, Atsuo ISOBE
  • Patent number: 8946005
    Abstract: A thin-film transistor includes a semiconductor pattern, source and drain electrodes and a gate electrode, the semiconductor pattern is formed on a base substrate, and the semiconductor pattern includes metal oxide. The source and drain electrodes are formed on the semiconductor pattern such that the source and drain electrodes are spaced apart from each other and an outline of the source and drain electrodes is substantially same as an outline of the semiconductor pattern. The gate electrode is disposed in a region between the source and drain electrodes such that portions of the gate electrode are overlapped with the source and drain electrodes. Therefore, leakage current induced by light is minimized. As a result, characteristics of the thin-film transistor are enhanced, after-image is reduced to enhance display quality, and stability of manufacturing process is enhanced.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Je-Hun Lee, Do-Hyun Kim, Eun-Guk Lee, Chang-Oh Jeong
  • Publication number: 20150029434
    Abstract: An electric-field exposure method includes forming a display cell. The display cell comprises a pixel electrode electrically connected to a data line and a gate line. A guard-ring line surrounds a display area on which the pixel electrode is disposed. A common electrode overlaps the guard-ring line. A resistance division part is connected to a node which is connected to a data pad and a gate pad. A first electrode and a second electrode are provided with first and second electronic signals, respectively. The first electrode is connected to the guard-ring line. The second electrode is electrically connected to the common electrode. The node is provided with a divided signal obtained by dividing the first and second signals through the resistance division part.
    Type: Application
    Filed: January 17, 2014
    Publication date: January 29, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Hwan Kim, Il-Gon Kim, Sank-Uk Lim, Mee-Hye Jung
  • Patent number: 8933460
    Abstract: A method of manufacturing an array substrate for an FFS mode LCD device includes forming a gate line, a gate electrode and a pixel electrode on a substrate; forming a gate insulating layer; forming a data line, source and drain electrodes, and a semiconductor layer on the gate insulating layer, the drain electrode overlapping the pixel electrode; forming a passivation layer on the data line, the source and drain electrodes; forming a contact hole exposing the drain electrode and the pixel electrode by patterning the passivation layer and the gate insulating layer; and forming a common electrode and a connection pattern on the passivation layer, wherein the common electrode includes bar-shaped openings and a hole corresponding to the contact hole, and the connection pattern is disposed in the hole, is spaced apart from the common electrode and contacts the drain electrode and the pixel.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Oh Kim, Jung-Sun Beak
  • Publication number: 20150002777
    Abstract: The present invention provides a liquid crystal display panel capable of preventing the occurrence of display unevenness in the perimeter of the display area in the FFS mode. The liquid crystal display panel of the present invention includes a pair of substrates; a sealing material; and a liquid crystal layer enclosed by the pair of substrates and the sealing material.
    Type: Application
    Filed: March 22, 2013
    Publication date: January 1, 2015
    Inventors: Akane Sugisaka, Akihiro Shohraku
  • Publication number: 20150002776
    Abstract: A wide viewing angle liquid crystal display realizing multi-domain display comprises a plurality of pixels, wherein each pixel is connected to a corresponding common electrode (7), a corresponding pixel electrode (5), a corresponding source electrode (3) and a corresponding gate electrode (2) respectively, and a multi-direction planar electric field can be formed between the common electrode (7) and the pixel electrode (5), so that the electric field in a corresponding pixel is divided into multiple azimuths for realizing multi-domain arrangement of liquid crystal molecular. Therefore, gray-scale reversal phenomena at certain specific angles can be improved, the problem of color offset can be improved effectively, the effect of wide viewing angle can also be more uniform and stable, and the quality of a displayed picture can be further improved.
    Type: Application
    Filed: January 5, 2013
    Publication date: January 1, 2015
    Inventors: Junwen Hu, Lin Li, Shengbao Hong, Chongying Zhuang, Jiqiang He
  • Publication number: 20140375922
    Abstract: Disclosed is an LCD device that includes a plurality of horizontal gate lines provided in a horizontal direction in a liquid crystal panel, a plurality of data lines and a plurality of vertical gate lines provided in a vertical direction in the liquid crystal panel, and a driving IC connected to the plurality of vertical gate lines to supply a gate driving signal, and connected to the plurality of data lines to supply data voltages. One of the horizontal gate lines is connected to at least two vertical gate lines, and the driving IC supplies the same gate driving signal to the at least two vertical gate lines.
    Type: Application
    Filed: November 15, 2013
    Publication date: December 25, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Jong Sin PARK, Chul NAM, Jae Hyung JO
  • Patent number: 8912547
    Abstract: A light-emitting device which includes a semiconductor layer; a first insulating layer over the semiconductor layer; a gate electrode and a first conductive layer over the first insulating layer; a second insulating layer over the gate electrode and the first conductive layer; source and drain electrodes and a second conductive layer over the second insulating layer; a third insulating layer over the source and drain electrodes and the second conductive layer; a first electrode and a third conductive layer over the third insulating layer; a planarization film covering an end portion of the first electrode; an electroluminescent layer over the first electrode; and a second electrode over the electroluminescent layer and the planarization film is provided. The second electrode is electrically connected to the third conductive layer through an opening portion provided in the planarization film. The opening portion overlaps with the first, second, and third conductive layers.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 16, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hideki Matsukura
  • Publication number: 20140362323
    Abstract: An auxiliary capacitor (6) of each of sub-pixels (P) includes a transparent electrode, a pixel electrode, and a capacitor insulating film between the transparent electrode and the pixel electrode. Switching elements (5a) are connected, for every predetermined sub-pixel(s) (P) along a column direction of the sub-pixels (P) arranged in rows and columns, to the source lines (15a) different from each other. A plurality of transparent electrodes are each shared by a pair of the sub-pixels (P) which are adjacent to each other in a predetermined direction and are arranged in a corresponding one of the wide spaces each provided between adjacent two of gate lines (13). The transparent electrodes adjacent to each other in the row direction receive different signals.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 11, 2014
    Inventors: Fumiki Nakano, Tadayoshi Miyamoto
  • Publication number: 20140362322
    Abstract: A liquid crystal display includes a plurality of pixels including first, second and third pixels that display different colors and are sequentially disposed, a plurality of data lines including first, second and third data lines sequentially and repeatedly disposed where the first data line is disposed between the third pixel and the first pixel, the second data line is disposed between the first pixel and the second pixel, and the third data line is disposed between the second pixel and the third pixel, widths of the first, second and third data lines are substantially the same as each other, and a first interval between the first data line and the second data line is different from a second interval between the second data line and the third data line or a third interval between the third data line and the first data line.
    Type: Application
    Filed: May 8, 2014
    Publication date: December 11, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seung Hyun PARK, Hyang Yul KIM, Sung In RO, Jun Ho SONG, Jean Ho SONG, Woong Ki JEON
  • Publication number: 20140354913
    Abstract: An LCD panel and method for forming the same are proposed. In the LCD panel, the TFT includes a source and a drain formed by a transparent conducting layer, and a gate formed by a metal layer. The source is electrically connected with a data line through a via hole over the data line. The source connects to the drain via an active layer. Whatever the number of data lines are, each pixel corresponds to an associated via hole, so the number of via holes does not increase, and not reduce the aperture ratio. Therefore, the present invention is proper to a design using more data lines and working in a high frequency. Moreover, the matrix circuitry of LCD is well applied in a display which not only increases a density of data lines to raise the frame rate, but also maintains the aperture ratio and brightness.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Inventors: Chenghung CHEN, Chengming HE
  • Publication number: 20140340607
    Abstract: This semiconductor device (100A) includes: a thin-film transistor (101); a gate line layer; an interlevel insulating layer (14) including a first insulating layer (12) which contacts at least with the surface of a drain electrode (11d); a first transparent conductive layer (15) on the interlevel insulating layer (14); a drain connected transparent conductive layer (15a) arranged on the interlevel insulating layer (14) and not electrically connected to the first transparent conductive layer (15); a dielectric layer (17) arranged on the first transparent conductive layer (15); and a second transparent conductive layer (19a) which is arranged over the dielectric layer (17) so as to overlap at least partially with the first transparent conductive layer (15) with the dielectric layer (17) interposed between them.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 20, 2014
    Inventors: Yukinobu Nakata, Tetsuo Fujita, Yoshihito Hara
  • Patent number: 8890406
    Abstract: A flat panel display and a method of fabricating the same are provided. The flat panel display includes a conductor, and a passivation layer pattern disposed on a side end of the conductor. As such, the passivation layer pattern can prevent or reduce corrosion and damage of the conductor. In one embodiment, the conductor includes a conductive layer formed of a material selected from the group consisting of aluminum and an aluminum alloy. The passivation layer pattern may be formed of an organic material or an inorganic material.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Wook Kang, Won-Kyu Kwak, Jeong-Bai Choi, Moon-Hee Park, Dong-Young Sung
  • Patent number: 8885029
    Abstract: A stereoscopic image display is discussed. The stereoscopic image display includes a display panel including data lines, gate lines crossing the data lines, thin film transistors (TFTs) that are turned on in response to gate pulses from the gate lines, and a plurality of pixels, a data driving circuit that converts digital video data into a data voltage and supplies the data voltage to the data lines, a gate driving circuit sequentially supplying the gate pulses synchronized with the data voltage to the gate lines, and a timing controller that receives a timing signal, 2D image data, and 3D image data from an external host system, supplies the digital video data to the data driving circuit, and controls an operation timing of the data driving circuit and an operation timing of the gate driving circuit.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: November 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Seungho Baek, Juseong Park
  • Patent number: 8885114
    Abstract: It is an object of the present invention to form a pixel electrode and a metal film using one resist mask in manufacturing a stacked structure by forming the metal film over the pixel electrode. A conductive film to be a pixel electrode and a metal film are stacked. A resist pattern having a thick region and a region thinner than the thick region is formed over the metal film using an exposure mask having a semi light-transmitting portion. The pixel electrode, and the metal film formed over part of the pixel electrode to be in contact therewith are formed using the resist pattern. Accordingly, a pixel electrode and a metal film can be formed using one resist mask.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 11, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8879013
    Abstract: A thin-film transistor liquid crystal display device includes: a substrate and a signal line, a scan line, a pixel electrode, and a thin-film transistor that are formed on the substrate. The signal line and the scan line are arranged to intersect each other. The pixel electrode is located in a pixel display zone enclosed by the intersected signal line and scan line. The thin-film transistor includes a gate terminal, a source terminal, and a drain terminal. The gate terminal is electrically connected to the scan line. The drain terminal is electrically connected to the signal line. The source terminal is arranged at a position corresponding to the intersection of the signal line and the scan line and is electrically connected to the pixel electrode.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: November 4, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Cheng-Hung Chen
  • Patent number: 8872182
    Abstract: By increasing an interval between electrodes which drives liquid crystals, a gradient of an electric field applied between the electrodes can be controlled and an optimal electric field can be applied between the electrodes. The invention includes a first electrode formed over a substrate, an insulating film formed over the substrate and the first electrode, a thin film transistor including a semiconductor film in which a source, a channel region, and a drain are formed over the insulating film, a second electrode located over the semiconductor film and the first electrode and including first opening patterns, and liquid crystals provided over the second electrode.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 28, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Publication number: 20140313449
    Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa