Transistor Patents (Class 349/42)
  • Patent number: 8259245
    Abstract: Disclosed are a liquid crystal display and a photomask for manufacturing the liquid crystal display. The liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including first and second sub-pixel electrodes, a first thin film transistor having first gate and source electrodes and a first drain electrode connected to the first sub-pixel electrode, a second thin film transistor having second gate and source electrodes and a second drain electrode connected to the second sub-pixel electrode, and a third thin film transistor having third gate and drain electrodes and a third source electrode connected to the second sub-pixel electrode. A first gate signal is applied to the first and second gate electrodes, a second gate signal is applied to the third gate electrode, the same data signal is applied to the first and second source electrodes, and the second drain electrode and the third source electrode are connected to each other.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Jang Kim, Young-Goo Song, Sung-Jae Moon
  • Patent number: 8253874
    Abstract: A liquid crystal display including a pixel electrode having first and second sub-pixel electrodes separated from each other; a gate line electrically connected to the first and second sub-pixel electrodes through thin film transistors, a data line electrically connected to the first and second sub-pixel electrodes through the thin film transistors, a first storage electrode line having a first storage electrode overlapped with the first sub-pixel electrode, wherein a first storage voltage is applied to the first storage electrode line as a cyclic signal; and a second storage electrode line having a second storage electrode overlapped with the second sub-pixel electrode, wherein a second storage electrode voltage opposite in phase to the first storage electrode voltage is applied to the second storage electrode line as a cyclic signal, and wherein the first and second sub-pixel electrodes are electrically connected to the same gate line and to the same data line through the thin film transistors, and the pixel
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Gyu Kim, Hye-Seok Na
  • Patent number: 8253916
    Abstract: An LCD device according to the present invention includes having first and second substrates facing each other gate and data lines crossing each other to define a pixel region, a thin film transistor including a gate electrode protruding from the gate line, a source electrode protruding from the data line and a drain electrode spaced from the source electrode at a predetermined interval, a metal pattern over a predetermined portion of the gate line, a passivation layer over the data line and the metal pattern to have a contact hole exposing the drain electrode and a storage hole exposing the metal pattern, a pixel electrode on the pixel region over the contact hole and the storage hole, a column spacer contacting with the pixel electrode through the storage hole and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: August 28, 2012
    Inventors: Seung Ryull Park, Joon Dong Lee
  • Patent number: 8253872
    Abstract: A shield electrode is provided in the vicinity of a pixel electrode and source bus lines. The shield electrode may be provided in the same layer as gate bus lines, or in the same layer as the source bus lines. The shield electrode may be surrounded by an insulating material, or may be connected to a line other than the source bus lines. By providing the shield electrode, it is possible to reduce a source-drain parasitic capacitance between a pixel electrode and a source bus line.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: August 28, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Keiichi Ina, Ichiro Shiraki, Mutsumi Nakajima, Keisuke Yoshida, Shoichi Andou
  • Publication number: 20120212686
    Abstract: It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Hajime Kimura
  • Patent number: 8248550
    Abstract: A liquid crystal display device includes a first substrate which comprises a plurality of pixels where a thin film transistor and a pixel electrode electrically connected to the thin film transistor are formed, the first substrate including a gate line and a data line which insulatingly intersect each other; and a gate driver which applies a gate driving signal to the gate line, the thin film transistor including a gate electrode which is connected to the gate line; a source electrode which is connected to the data line; and a drain electrode which is connected to the pixel electrode, and the pixels being decreased in a value of Cp/(Cp+Clc+Cst) as going toward the gate driver (where, Cp: a sum of parasitic capacity between the gate electrode and the source electrode and parasitic capacity between the gate electrode and the drain electrode, Clc: liquid crystal capacity, and Cst: storage capacity).
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: August 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Min-cheol Lee
  • Publication number: 20120206668
    Abstract: A thin-film transistor device manufacturing method forms a plurality of gate electrodes above a substrate. A silicon nitride layer is formed on the plurality of gate electrodes. A silicon oxide layer is formed on the silicon nitride layer. An amorphous silicon layer is formed on the silicon oxide layer. The amorphous silicon layer is crystallized using predetermined laser light to produce a crystalline silicon layer. A source electrode and a drain electrode are formed on the crystalline silicon layer in a region that corresponds to each of the plurality of gate electrodes. A film thickness of the silicon oxide layer, a film thickness of the silicon nitride layer, and a film thickness of the amorphous silicon layer satisfy predetermined conditional expressions.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Yuta SUGAWARA
  • Patent number: 8243221
    Abstract: In the array substrate where the display region has the non-quadrangle shape, a sub-capacitance line which forms a sub-capacitance is disposed at the pixel, a intersection region of the scanning lead-out line and a signal lead-out line is located at the frame region on the outside of the display region, a common lead-out line which connects the sub-capacitance line in common is disposed at the frame region side where the scanning lead-out line is disposed, the common lead-out line is not disposed in the intersection region, but disposed in a region between a region of the scanning lead-out line and a region of the signal lead-out line while intersecting any one of the scanning lead-out line and the signal lead-out line.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: August 14, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventor: Manabu Tanahara
  • Patent number: 8242507
    Abstract: A pixel structure having capacitor compensation includes a thin-film transistor, and the thin-film transistor includes a source electrode, a drain electrode, a semiconductor layer and a gate electrode. The gate electrode includes a bar-shaped main part, and at least a protrusion part or two indention parts. One of the characteristics of the present invention lies in layout patterns of the drain electrode and gate electrode. An overlapping area between the drain electrode and gate electrode, and the position of the overlapping area can both be kept by virtue of the arrangement of the protrusion part or the indention parts of the gate electrode, even when the alignment between the drain electrode and gate electrode is changed. Therefore, the gate-drain capacitor (Cgd) will not be changed so that the quality of the liquid crystal display will be improved accordingly.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: August 14, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Hsi-Ming Chang
  • Patent number: 8237904
    Abstract: A driving circuit and a common electrode are located within a sealant region of the first substrate, wherein the driving circuit includes switch devices and turn-line structures. The common electrode is located within the sealant region of the first substrate. The planar layer is located on the first substrate, wherein the thickness of the planar layer at the turn-line structure of the driving circuit is less than the thicknesses of other portions. The conductive layer is located on the planar layer. A second substrate having an electrode thereon is disposed opposite to the first substrate. A liquid crystal layer is located within the display region between the first substrate and the second substrate. A sealant is located within the sealant region between the first substrate and the second substrate, and conductive balls are distributed in the sealant.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: August 7, 2012
    Assignee: Au Optronics Corporation
    Inventors: Maw-Song Chen, Kuo-Yu Huang, Te-Chun Huang
  • Patent number: 8237881
    Abstract: An array substrate comprises data lines, gate lines, thin film transistors and pixel electrodes formed on a base substrate. Pixel units are defined by intersecting the data lines and the gate lines, the thin film transistors are formed at the intersections of the data lines and the gate lines, and the data lines extend across each of the pixel units in the middle of the pixel units. At least two thin film transistors for controlling a same pixel electrode are respectively formed on both sides of the data line in each pixel unit.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: August 7, 2012
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Meihua Hong, Ziqi Xia, Zhinan Zhang
  • Patent number: 8232124
    Abstract: A thin-film transistor array includes an electrically insulating substrate, a plurality of thin-film transistors arranged in a matrix on the substrate, and each including a channel, a source, and a drain each comprised of an oxide-semiconductor film, a pixel electrode integrally formed with the drain, a source signal line through which a source signal is transmitted to a group of thin-film transistors, a gate signal line through which a gate signal is transmitted to a group of thin-film transistors, a source terminal formed at an end of the source signal line, and a gate terminal formed at an end of the gate signal line. The source terminal and the gate terminal are formed in the same layer as a layer in which the channel is formed. The source terminal and the gate terminal have the same electric conductivity as that of the pixel electrode.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 31, 2012
    Assignees: NEC Corporation, NLT Technologies, Ltd.
    Inventors: Kazushige Takechi, Mitsuru Nakata
  • Publication number: 20120188477
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a pixel electrode disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode spaced apart from the first sub-pixel electrode by a gap, a common electrode disposed on the second substrate, a shielding member disposed on the first substrate or the second substrate and overlapping the gap between the first sub-pixel electrode and the second sub-pixel electrode, an alignment layer disposed on at least one of the pixel electrode and the common electrode, and a liquid crystal layer disposed between the first substrate and the second substrate.
    Type: Application
    Filed: April 2, 2012
    Publication date: July 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Mee-Hye JUNG, Chong-Chul CHAI, Yong-Woo LEE, Young-Gu KIM
  • Patent number: 8223287
    Abstract: An electrooptic device includes two adjacent pixel electrodes. A potential that is different from the potential of the first and second pixel electrodes is applied to an area between the adjacent pixel electrodes.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: July 17, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takehiro Ono, Shuhei Yamada
  • Patent number: 8223284
    Abstract: A liquid crystal device 10 of the present invention includes conductive films 81a, 81b for storage capacitors, i.e., a first conductive film 81a and a second conductive film 81b, which are connected to two adjacent pixel electrodes 44a, 44b, respectively, via contact sections 70a, 70b formed through a second insulating film 62. The part of a storage capacitor 83 located below the conductive films 81a, 81b is divided into a first capacitor line 83a arranged below the first conductive film 81a and a second capacitor line 83b arranged below the second conductive film 81b.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: July 17, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akane Sugisaka, Fumikazu Shimoshikiryoh
  • Patent number: 8223286
    Abstract: The present invention provides a display panel including a plurality of dual-gate pixel units connected to each other through data lines, gate lines and common lines. Each dual-gate pixel unit includes a first pixel and a second pixel respectively connected to a first gate line and a second gate line, and shares a common line and a data line. The first pixel and the second pixel are respectively disposed at two opposite sides of the common line, and they are also respectively disposed at two opposite sides of the first data line and the second gate line. The data lines transfer data signals into pixels, and the gate lines control the pixels to receive the data signals. The present invention raises an aperture ratio of each pixel of the display panel, and reduces the probability of the gate line and the common line being short-circuited.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: July 17, 2012
    Assignee: Century Display(ShenZhen)Co., Ltd.
    Inventors: Chih-Chung Liu, Cheng-Hsin Chen
  • Patent number: 8223290
    Abstract: A liquid crystal display includes a substrate, a plurality of a gate line and a plurality of a data line disposed on the substrate, a plurality of a thin film transistor each connected to a gate line and a data line, a plurality of a pixel electrode each connected to a thin film transistor, a common electrode facing the pixel electrodes, and a liquid crystal layer between the pixel electrodes and the common electrode. Each of the pixel electrodes includes a first longitudinal edge adjacent to a first data line and a second longitudinal edge adjacent to a second data line adjacent to the first data line. A first distance between an edge of the first longitudinal edge and the first data line is larger than a second distance between the second longitudinal edge and an edge of the second data line.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Young Lee, Seung-Soo Baek, Yun-Jung Cho, Young-Goo Song
  • Patent number: 8218099
    Abstract: An object is to provide an active matrix liquid crystal display device in which plural kinds of circuits are formed over one substrate and plural kinds of thin film transistors are provided corresponding to characteristics of the plural kinds of circuits. An inverted-coplanar thin film transistor including an oxide semiconductor layer which is over and overlaps with a source electrode layer and a drain electrode layer is used for a pixel thin film transistor. A channel-protective thin film transistor is used for a driver-circuit thin film transistor is used. In addition, main parts of the pixel thin film transistor are formed using a light-transmitting material, so that the aperture ratio is increased.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: July 10, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masayuki Sakakura, Junichiro Sakata, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba, Yoshiaki Oikawa
  • Patent number: 8217872
    Abstract: The present invention provides a liquid crystal display device including an active matrix substrate with improved characteristics and providing high-contrast between black and white displays.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: July 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryohki Itoh, Satoshi Horiuchi, Takaharu Yamada
  • Publication number: 20120169956
    Abstract: An LCD panel transmits the display data to sub-pixels in a zigzag pattern through a data line. The variation of the feed-through voltages of the sub-pixels may be modified by adjusting the ratios of the channel widths and the channel lengths of the TFTs in the sub-pixels to some predetermined ratios, or by adjusting the compensation capacitance to the coupling capacitance of the TFTs of the sub-pixels.
    Type: Application
    Filed: May 29, 2011
    Publication date: July 5, 2012
    Inventors: Chun-Chi Lai, Ching-Wei Chen, Tsan-Chun Wang, Kuo-Hsing Cheng, Yu-Cheng Chen
  • Patent number: 8212257
    Abstract: Solved is a problem of attenuation of output amplitude due to a threshold value of a TFT when manufacturing a circuit with TFTs of a single polarity. In a capacitor (105), a charge equivalent to a threshold value of a TFT (104) is stored. When a signal is inputted thereto, the threshold value stored in the capacitor (105) is added to a potential of the input signal. The thus obtained potential is applied to a gate electrode of a TFT (101). Therefore, it is possible to obtain the output having a normal amplitude from an output terminal (Out) without causing the amplitude attenuation in the TFT (101).
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: July 3, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Publication number: 20120162558
    Abstract: A thin film transistor array substrate includes pixel regions, each comprising first, second and third transparent electrodes, which are electrically isolated, wherein the second transparent electrode comprises strip-like second electrode portions electrically connected to one another, and the third transparent electrode comprises strip-like third electrode portions electrically connected to one another, the positions of the strip-like third electrode portions corresponding to those of the strip-like second electrode portions, and wherein the strip-like third electrode portions have a width less than that of the strip-like second electrode portions. When the substrate is actuated, a first horizontal electric field is formed between the first and second transparent electrodes and a second horizontal electric field is formed between the third and second transparent electrodes, so that the transmittance can be increased.
    Type: Application
    Filed: April 1, 2011
    Publication date: June 28, 2012
    Applicant: InfoVision Optoelectronics (Kunshan) Co., Ltd.
    Inventors: Techen Chung, Chiate Liao, Xiangjian Kong, Jiahao Lu
  • Publication number: 20120162559
    Abstract: A liquid crystal display includes a first substrate including a pixel area, a second substrate facing the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and including liquid crystal molecules, a first electrode, a second electrode including a minute slit pattern, disposed on the first substrate and an insulating layer disposed between the first electrode and the second electrode, and a third electrode disposed on the second substrate. The pixel area includes a first region having a double-electrode structure wherein the first electrode and the second electrode overlap, and a second region having a single electrode structure including the second electrode.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 28, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Su Jeong KIM, Hoon KIM, Jae Hoon JUNG, Joo Seok YEOM, Ki Chul SHIN, Ho Kil OH
  • Patent number: 8208086
    Abstract: Provided are an organic semiconductor structure and a method of manufacturing the same, an organic thin film transistor (OTFT) using the organic semiconductor structure and a method of manufacturing the OTFT, and a display apparatus using the same.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: June 26, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Nack Bong Choi, Min Joo Kim
  • Publication number: 20120154701
    Abstract: A liquid crystal display has a pair of substrates with liquid crystal sealed between them. A polymer layer regulates directions in which the liquid crystal molecules tilt. A plurality of gate bus lines and a plurality of drain bus lines are provided on one of the substrates. Color filters and a pixel electrode are provided on the substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. A common electrode is provided on the other substrate. A first thin film transistor is connected to the first sub-pixel electrode, a second thin film transistor is connected to the second sub-pixel electrode, and a third thin film transistor is connected to the second sub-pixel electrode. The first and second thin film transistors are both connected to a first gate bus line, and the third thin film transistor is connected to a second bus line.
    Type: Application
    Filed: February 8, 2012
    Publication date: June 21, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Sasabayashi, Arihiro Takeda, Hiroyasu Inoue, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro, Tsuyoshi Kamada, Kimiaki Nakamura
  • Publication number: 20120154700
    Abstract: A liquid crystal display includes a first substrate, a gate line, a data line, first-third power lines located on the first substrate, first-third sub-pixels, where a switching element of each is connected to the gate line and the data line, a second substrate, a common electrode that is formed on the second substrate, a liquid crystal layer located between the first and second substrates, and a power voltage driver outputting a low voltage during a first period and a high voltage during a subsequent second period to the first power line, a constant voltage during both periods to the second power line, and the high voltage during the first period and the low voltage during the second period to the third power line. The first power line, the second power line and the third power line overlap the first sub-pixel, the second sub-pixel, and the third sub-pixel, respectively.
    Type: Application
    Filed: June 15, 2011
    Publication date: June 21, 2012
    Inventors: Kyoung Ju Shin, Hak Sun Chang, Kyoung Tae Kim, Jun Woo Lee, Min-Sik Jung
  • Publication number: 20120154702
    Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas; first and second pixel electrodes disposed substantially in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.
    Type: Application
    Filed: February 28, 2012
    Publication date: June 21, 2012
    Inventors: Hee-Seob Kim, Joon-Hak Oh, Doo-Hwan You, Young-Chol Yang
  • Patent number: 8203264
    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: December 8, 2006
    Date of Patent: June 19, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Tae-Wook Kang, Won-Kyu Kwak, Jeong-Bai Choi, Moon-Hee Park, Dong-Young Sung
  • Publication number: 20120133856
    Abstract: A gate line (40) has a two-layered structure comprising a lower gate line (40a) made of material identical to a pixel electrode (70), and positioned in the same layer as the pixel electrode (70), and an upper gate line (40b) layered on the lower gate line (40b), and made of material having a higher electrical conductivity than the transparent conductive material. According to this structure, it is possible to reduce the number of times performing exposure processes in manufacturing an in-plane switching type liquid crystal panel.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Kikuo ONO
  • Patent number: 8188478
    Abstract: A display device includes a main body, a support stand, and a display portion. The display portion includes a pixel having a TFT and a capacitor. The capacitor includes a capacitor electrode on an insulating surface, an insulating film on the capacitor electrode, and a pixel electrode of the TFT on the insulating film.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: May 29, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Setsuo Nakajima
  • Patent number: 8188481
    Abstract: A display panel includes a plurality of pads, a plurality of first contacts connected to the pads, a plurality of second contacts provided so as to be opposed to the plurality of first contacts, a polysilicon layer configured to form a plurality of polysilicon films to connect the plurality of first contacts and second contacts, and a gate metal layer. The gate metal layer forms at least one gate metal. The gate metal layer traverses the plurality of polysilicon films so as to form a plurality of transistors. The plurality of transistors are arranged in a zigzag pattern for each transistor set. A width of a portion of each of the polysilicon films, the portion forming a corresponding one of the transistors, is larger than a width of another portion of the polysilicon films. The other portion is connected to a corresponding one of the first contacts and second contacts.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: May 29, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Syou Yanagisawa
  • Publication number: 20120127387
    Abstract: A touch panel including: first electrode patterns provided on a transparent substrate and extending in a first direction; and second electrode patterns provided on the substrate and extending in a second direction that intersects the first direction, each of the first electrode patterns being constituted by transparent electrodes and conductive connecting sections via which the transparent electrodes are connected to each other, and each of the second electrode patterns being constituted by transparent electrodes and conductive connecting sections via which the transparent electrodes are connected to each other, each of the second electrode patterns intersecting the first electrode patterns via an insulation layer at the respective conductive connecting sections of said each of the second electrode patterns, and in at least one of the second electrode patterns, at least one of the conductive connecting sections of said at least one of the second electrode patterns being a metal wire.
    Type: Application
    Filed: May 14, 2010
    Publication date: May 24, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Asahi Yamato, Jun Nakata
  • Patent number: 8184241
    Abstract: The present invention mechanically protects a surface of a miniaturized liquid crystal display device for mobile phone or the like without deteriorating image quality and without increasing a thickness of a whole display device. To achieve such an object, in the present invention, a liquid crystal display panel is constituted of a TFT substrate and a color filter substrate, a lower polarizer is adhered to a lower surface of the TFT substrate, and an upper polarizer is adhered to an upper surface of the color filter substrate. A face plate is adhered to the upper polarizer using an acrylic adhesive material which is cured by ultraviolet rays. For enhancing strength and adhesion property of the face plate, corners and side portions of the face plate are chamfered. By making a profile of the face plate smaller than a profile of the upper polarizer, the adhesion property of the face plate is enhanced.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: May 22, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidenao Kubota, Takahiro Yamada
  • Patent number: 8184223
    Abstract: A first pixel electrode (17a), a second pixel electrode (17b), a third pixel electrode (17c), and a fourth pixel electrode (17d) are provided in a pixel (100); the first pixel electrode (17a) is connected to a data signal line (15x) via a first transistor (12a), the second pixel electrode (17b) is connected to the data signal line (15x) via a second transistor (12b), and the first transistor (12a) and the second transistor (12b) are connected to the same scanning signal line (16x); the first pixel electrode (17a) is connected to the third pixel electrode (17c) via a capacitor, and the second pixel electrode (17b) is connected to the fourth pixel electrode (17d) via a capacitor; one of two storage capacitor wires (18p, 18q) forms a capacitance with the first pixel electrode (17a), and the other one of the two storage capacitor wires (18p, 18q) forms a capacitance with the second pixel electrode (17b); and one of the two storage capacitor wires (18p, 18q) receives a storage capacitor wire signal, and the other
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: May 22, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshihide Tsubata
  • Patent number: 8184224
    Abstract: Herein disclosed a display apparatus including: a pixel array having a matrix of pixel circuits each including respective electrooptical elements for determining a display brightness level and respective drive circuits for driving the electrooptical elements; wherein adjacent two of the pixel circuits are paired with each other, and each of the drive circuits of the adjacent two pixel circuits includes at least one transistor having a low-concentration source/drain region or an offset region of an offset gate structure, the electrooptical elements and the drive circuits of the adjacent two pixel circuits being laid out such that a line interconnecting a drain region and a source region of the at least one transistor extends parallel to a direction of pixel columns of the pixel circuits of the pixel array.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: May 22, 2012
    Assignee: Sony Corporation
    Inventors: Mitsuru Asano, Seiichiro Jinta, Masatsugu Tomida, Hiroshi Fujimura
  • Patent number: 8179511
    Abstract: A liquid crystal panel and a fabrication method thereof are provided. The liquid crystal panel includes: a gate line and a data line crossing each other to define a pixel; a thin film transistor including: a gate electrode connected to the gate line; a semiconductor layer formed on the gate electrode; a source electrode connected to the data line; a drain electrode; a gate insulating layer between the gate electrode and the drain electrode and between the gate line and the drain electrode; and a compensating parasitic capacitor between the gate line and the drain electrode for compensating a parasitic capacitance between the gate electrode and the drain electrode; and a pixel electrode connected to the drain electrode.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: May 15, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Moon Soo Kang, Hyung Ho Ahn
  • Patent number: 8179350
    Abstract: A display device including a plurality of pixel electrodes arranged in a matrix including rows and columns and a plurality switching elements coupled with the pixel electrodes; a plurality of gate lines coupled with the switching elements and extending in a row direction, at least two gate lines assigned to a row; and a plurality of data lines coupled with the switching elements and extending in a column direction, a data line assigned to at least two columns, wherein each of the pixel electrodes has a first side and a second side that is farther from a data line than the first side, and the switching elements are disposed near the second sides of the pixel electrodes.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: May 15, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Haeng-Won Park, Seong-Young Lee, Yong-Soon Lee, Nam-Soo Kang, Seung-Hwan Moon, Bong-Jun Lee, Sung-Man Kim, Beom-Jun Kim, Yeon-Kyu Moon, Hyeong-Jun Park, Shin-Tack Kang
  • Publication number: 20120113345
    Abstract: A driver circuit for use with a passive matrix or active matrix electro-optical display device such as a liquid crystal display is fabricated to occupy a reduced area. A circuit (stick crystal) having a length substantially equal to the length of one side of the matrix of the display device is used as the driver circuit. The circuit is bonded to one substrate of the display device, and then the terminals of the circuit are connected with the terminals of the display device. Subsequently, the substrate of the driver circuit is removed. The driver circuit can be formed on a large-area substrate such as a glass substrate, while the display device can be formed on a lightweight material having a high shock resistance such as a plastic substrate.
    Type: Application
    Filed: September 2, 2011
    Publication date: May 10, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Yasuhiko Takemura, Setsuo Nakajima, Yasuyuki Arai
  • Publication number: 20120105758
    Abstract: An embodiment of the invention provide a liquid crystal panel comprising a driving chip assembly comprising: a chip lead wiring and a chip repair line, which are overlapped but insulated from each other; an array substrate comprising an array substrate lead wiring and an array substrate repair line, which are overlapped but insulated from each other; wherein the driving chip assembly is mounted on the array substrate which is electrically connected with the corresponding chip lead wiring connection, and the two ends of the chip repair line is electrically connected with the corresponding two ends of the array substrate repair line respectively.
    Type: Application
    Filed: March 24, 2011
    Publication date: May 3, 2012
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wei Qin, Zhilong Peng
  • Publication number: 20120105755
    Abstract: An active device array substrate includes a substrate, a pixel array, a peripheral circuit and at least an auxiliary metal pattern. The substrate has an active area and a peripheral circuit area connected to the active area. The pixel array is disposed on the active area of the substrate. The peripheral circuit is disposed on the peripheral circuit area of the substrate. The peripheral circuit includes a plurality of driver bonding pads and a plurality of fan-out line units. Each fan-out line unit includes a plurality of fan-out lines, a plurality of connection lines and a line-free area. The fan-out lines are electrically connected to the pixel array. Each connection line connects one of the driver bonding pads and one of the fan-out lines correspondingly. The auxiliary metal pattern is disposed at the line-free area. The auxiliary metal pattern and the connection lines are arranged in a same interval.
    Type: Application
    Filed: December 6, 2010
    Publication date: May 3, 2012
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Tsu-Te Zen, Han-Tung Hsu
  • Publication number: 20120105756
    Abstract: A PSA LCD panel includes a plurality of pixel units. Each of the pixel units includes a first pixel electrode and a second pixel electrode separated from the first pixel electrode. Each of the first and second pixel electrodes has a pattern scattered from a center in such a manner to form four domains.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 3, 2012
    Inventors: Te-Wei CHAN, Ya-Chieh CHEN, Chung-Yi CHIU, Ting-Wei SU, Yi-Pai HUANG, Ting-Jui CHANG, Jenn-Jia SU
  • Publication number: 20120105757
    Abstract: A liquid crystal display includes a liquid crystal panel including short sides and long sides, a plurality of gate lines disposed on the liquid crystal panel and extending substantially in parallel with the short sides of the liquid crystal panel, a plurality of data lines insulated from the gate lines, intersecting the gate lines and extending substantially in parallel with the long sides of the liquid crystal panel, a printed circuit board disposed near one of the short sides of the liquid crystal panel and providing an image signal to the liquid crystal panel, a light guide plate overlapping the liquid crystal panel, a light source module providing light to the light guide plate and a circuit board on which the light source module is mounted.
    Type: Application
    Filed: January 11, 2012
    Publication date: May 3, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-Duk LEE
  • Patent number: 8169578
    Abstract: A liquid crystal display device and a driving method thereof for reducing the number of data lines and the number of data drive integrated circuits corresponding thereto are disclosed. In the device, a plurality of gate lines is provided in a direction crossing a plurality of data lines. First and second control lines are provided in a direction being parallel to the gate lines. First liquid crystal cells are provided at one side on a basis of the data lines. Second liquid crystal cells are provided at other side on a basis of the data lines. A first switching part is provided for each first liquid crystal cell to apply video signals supplied from the data lines to the first liquid crystal cells under control of the first control line and the gate line. A second switching part is provided for each second liquid crystal cell to apply video signals supplied from the data lines to the second liquid crystal cells under control of the second control line and the gate line.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: May 1, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Woo Hyun Kim
  • Patent number: 8169580
    Abstract: A viewing angle controllable liquid crystal display device including red, green and blue color pixels and a control pixel of an electrically controlled birefringence (ECB) mode and its fabrication method are disclosed. A gate insulating layer and a passivation layer at a pixel area of the ECB control pixel are removed by using a half-tone mask to additionally secure a cell gap to thus maximize efficiency of the ECB control pixel to improve a viewing angle control effect. In addition, a light leakage is prevented by reducing a step in the vicinity of the pixel area of the ECB control pixel.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: May 1, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Hwi-Deuk Lee
  • Patent number: 8169560
    Abstract: A liquid crystal display with good reliability is provided. A pixel substrate 11 and a facing substrate 12 facing each other, a liquid crystal layer 14 sandwiched between the above-described substrates and changing an alignment direction in a region of display pixels in response to applied voltages, a seal layer 15 including an UV curable material, and arranged so as to surround the region of display pixels, thereby sealing the liquid crystal layer between the above-described substrates, TFT devices and a BM layer 17 both arranged on the pixel substrate 11, and a CF layer 20 for color display arranged on the pixel substrate 11 or the facing substrate 12 are included, and the seal layer 15 are seamlessly and continuously formed so as to overlap a part of the BM layer 17.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: May 1, 2012
    Assignee: Sony Corporation
    Inventor: Koji Ishizaki
  • Publication number: 20120099041
    Abstract: Embodiments of the invention disclose an array substrate and a manufacturing method thereof and a liquid crystal display. In the array substrate, an additional electrode is formed above a gate line, the additional electrode and the gate line are spaced from each other by a gate insulation layer, and the additional electrode is connected electrically with the common electrode line; pixel electrode extends to over the additional electrode and is overlapped with the additional electrode, the overlapped portion of the pixel electrode and both the additional electrode and the common electrode line forms a storage capacitor. The liquid crystal display according to the embodiment of the invention comprises the above array substrate.
    Type: Application
    Filed: April 22, 2011
    Publication date: April 26, 2012
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhenyu Xie, Xu Chen, Chunping Long, Shaoying Xu
  • Patent number: 8164700
    Abstract: One embodiment of the present invention is a thin film transistor array including an insulating substrate, a plurality of thin film transistors and a sealing layer. The sealing layer is stripe-shaped and covers a plurality of the thin film transistors. The sealing layer is formed over the insulating substrate.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: April 24, 2012
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Kaoru Hatta, Toru Okubo, Ryohei Matsubara
  • Patent number: 8149367
    Abstract: An IPS-method liquid crystal display device which exhibits small directivity of a viewing angle and high brightness is realized. A planar common electrode is arranged below a pixel electrode which includes comb-teeth-shaped electrodes and slits. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode by way of slit portions formed in the pixel electrode thus controlling liquid crystal molecules. To reduce the occurrence of a phenomenon that an abnormal domain is generated in an end portion of the slit and the abnormal domain lowers transmissivity of liquid crystal, the structure in which the slits having both ends thereof closed and the slits having one-side end portion thereof opened are alternately arranged next to each other in parallel is adopted.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: April 3, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Junji Tanno
  • Publication number: 20120075543
    Abstract: A triple-gate LCD panel includes a transistor array substrate, a color filter array substrate, and a liquid crystal layer disposed between the transistor array substrate and the color filter array substrate. A transistor array of the transistor array substrate includes a plurality of scan lines, data lines, and pixel switches connected to the scan lines and the data lines. The pixel switches in any column are connected to two adjacent data lines respectively. Two adjacent pixel switches in any column are connected to the same data line. The pixel switches, the liquid crystal layer, and the color filter array substrate define a plurality of monochromatic pixel units. The monochromatic pixel units in any row are all a plurality of red pixel units, green pixel units, or blue pixel units. The red pixel units, the green pixel units, and the blue pixel units in any column are arranged periodically.
    Type: Application
    Filed: January 18, 2011
    Publication date: March 29, 2012
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: GUANG-YI ZENG, CHIH-HSIANG HSU
  • Publication number: 20120075544
    Abstract: A driving circuit is provided, which is configured to supply a driving voltage and a driving current to an LED string. A first detection resistor is arranged on a path of the LED string. A voltage source outputs a control voltage having a level that corresponds to the target luminance level of the LED string, and a first threshold voltage that is proportional to the control voltage. A controller generates a gate pulse signal having a duty ratio that is adjusted such that the voltage drop across the first detection resistor matches the control voltage. A first driver drives a switching transistor of a DC/DC converter according to the gate pulse signal. When the voltage drop across the first detection resistor exceeds the first threshold voltage, a first comparator stops the switching operation of the switching transistor.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 29, 2012
    Applicant: ROHM CO., LTD.
    Inventor: Yoshikazu SASAKI