Conductive Mask Patents (Class 349/111)
-
Patent number: 7902006Abstract: In manufacturing a thin film transistor array substrate, a passivation film is formed over the transistors. A first photoresist pattern is formed over the passivation film, with a first portion partially overlying at least one source/drain electrode of each transistor and overlying each pixel electrode region, and with a second portion thicker than the first portion. The passivation film is patterned using the first photoresist pattern as a mask. The first photoresist pattern's first portion is removed to form a second photoresist pattern which protrudes upward around the pixel electrode regions. A transparent conductive film is formed with recesses in the pixel electrode regions. A masking pattern is formed over the transparent film in each pixel electrode region, the masking pattern's top surface being below a top of the transparent film. The transparent film is patterned using the masking pattern as a mask to form the pixel electrodes.Type: GrantFiled: May 6, 2009Date of Patent: March 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Woong-Kwon Kim, Ho-Jun Lee, Hong-Kee Chin, Sang-Heon Song, Jung-Suk Bang, Jun-Ho Song, Byeong-Jae Ahn, Bae-Heuk Yim
-
Patent number: 7894026Abstract: A thin film transistor array panel is provided, which includes: a gate line; a data line intersecting the gate line; a thin film transistor connected to the gate line and the data line; a pixel electrode connected to the thin film transistor; a passivation layer formed on the data line; and a shielding electrode overlapping the data line at least in part and electrically disconnected from the data line.Type: GrantFiled: October 1, 2004Date of Patent: February 22, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Seung-Soo Baek
-
Patent number: 7880835Abstract: A liquid crystal display (LCD) panel, comprising an array substrate and a color filter substrate, the array substrate comprises a first substrate, shielding bars, gate lines, data lines, and pixel electrodes, the color filter substrate comprises a second substrate, wherein the array substrate and color filter substrate are divided into at least a left side region and a right side region; a plurality of first BMs are provided on the second substrate in the left side region of the color filter substrate, with respect to a central line of the data line corresponding to each of the first BMs, a length of a right side portion is longer than that of a left side portion for each of the first BMs; a plurality of second BMs are provided on the second substrate in the right side region of the color filter substrate, with respect to a central line of the data line corresponding to each of the second BMs, a length of a left side portion is longer than that of a right side portion for each of the second BMs.Type: GrantFiled: May 22, 2008Date of Patent: February 1, 2011Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventor: Dongki Oh
-
Patent number: 7872696Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: GrantFiled: November 25, 2008Date of Patent: January 18, 2011Assignee: Hitachi, Ltd.Inventors: Yoshiaki Nakayoshi, Kazuhiko Yanagawa
-
Patent number: 7863618Abstract: The present invention provides an active matrix type display device having a high aperture ratio and a required auxiliary capacitor. A source line and a gate line are overlapped with part of a pixel electrode. This overlapped region functions to be a black matrix. Further, an electrode pattern made of the same material as the pixel electrode is disposed to form the auxiliary capacitor by utilizing the pixel electrode. It allows a required value of auxiliary capacitor to be obtained without dropping the aperture ratio. Also, it allows the electrode pattern to function as a electrically shielding film for suppressing the cross-talk between the source and gate lines and the pixel electrode.Type: GrantFiled: November 2, 2009Date of Patent: January 4, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hongyong Zhang, Satoshi Teramoto
-
Patent number: 7859616Abstract: A liquid crystal display apparatus includes an array substrate, a color filter substrate and a liquid crystal layer. The array substrate includes a transparent substrate, a plurality of pixel electrodes, a plurality of switching devices, a data line, a gate line and a light blocking pattern. The light blocking pattern is disposed on the transparent substrate. The light blocking pattern overlaps with at least a portion of the pixel electrodes neighboring each other and at least a portion of the data line. The light blocking pattern is disposed between the data line and the transparent substrate.Type: GrantFiled: February 28, 2008Date of Patent: December 28, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jin Jeon, Won-Kyu Lee, Jun-Ho Song
-
Patent number: 7852430Abstract: Light guide spacers for backlighting a reflective display. Embodiments of the present invention are directed to a reflective display assembly for an electronic device which is disposed above a backlight device. A light guide extends through the reflective display to conduct light from the backlight device, through the reflective display, and to a top surface of the reflective display. The display assembly may be used with a handheld computer system.Type: GrantFiled: November 29, 2001Date of Patent: December 14, 2010Assignee: Palm, Inc.Inventor: Shawn R. Gettmey
-
Patent number: 7847892Abstract: An array panel for a liquid crystal display device includes a substrate, a gate line and a gate electrode on the substrate, wherein the gate line is connected to the gate electrode, a gate insulating layer on the gate line and the gate electrode, an active layer on the gate insulating layer, an ohmic contact layer on the active layer, a data line, a source electrode, and a drain electrode on the ohmic contact layer, wherein the data line, the source electrode, and the drain electrode are formed of molybdenum, a passivation layer on the data line, the source and drain electrodes, and a pixel electrode on the passivation layer, wherein the ohmic contact layer has the same shape as the data line, the source, and drain electrodes, and the active layer has the same shape as the data line, and the source electrode, and the drain electrode except for a channel area between the source electrode and the drain electrode, and the channel area has a āUā shape.Type: GrantFiled: May 1, 2008Date of Patent: December 7, 2010Assignee: LG Display Co., Ltd.Inventors: Yong Wan Kim, Dong-Jin Park
-
Patent number: 7847889Abstract: Panels for a display device, a liquid crystal display, and methods to manufacture the same are disclosed. A light blocking member on a first panel advantageously overlaps a transistor and an opaque element on a second panel for advantageously reducing or eliminating light leakage, thereby allowing for sharp viewing contrast.Type: GrantFiled: June 9, 2004Date of Patent: December 7, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Gyu Kim
-
Patent number: 7839469Abstract: A color filter substrate, a method for manufacturing the same, and a liquid crystal display (LCD) panel using the same are provided. The color filter substrate includes a base material, a filter structure, and a common electrode layer. The filter structure includes a sheltering matrix and a plurality of color filter layers. The sheltering matrix disposed above the base material includes a black resin layer and a conducting material layer. The black resin layer has a plurality of openings for exposing a partial surface of the base material. The conducting material layer is disposed on the black resin layer. The color filter layers are disposed in the plurality of openings of the black resin layer. The common electrode layer is disposed on the filter structure.Type: GrantFiled: July 3, 2008Date of Patent: November 23, 2010Assignee: Chimei Innolux CorporationInventor: Biing-Seng Wu
-
Patent number: 7839471Abstract: A liquid crystal device has a plurality of pixels arranged. The liquid crystal device includes a first substrate, a second substrate opposing the first substrate, liquid crystal provided between the first substrate and the second substrate, wires formed on the first substrate, and a reflective layer formed on the first substrate. Each pixel has a reflective display region formed by the reflective layer and a transparent display region without the reflective layer, and each wire is routed between two pixels in the transparent display region and in the reflective display region.Type: GrantFiled: March 14, 2007Date of Patent: November 23, 2010Assignee: Epson Imaging Devices CorporationInventors: Mutsumi Matsuo, Katsuhiro Imai, Tomohiko Kojima, Yoshio Yamaguchi
-
Patent number: 7830483Abstract: The invention relates to a liquid crystal display device used for a display unit of electronic equipment, and an object is to provide a liquid crystal display of a high quality without shading in the display that is caused by deviation in the positions of patterns. Compensation electrodes are formed on the regions across which the data bus lines and the pixel electrodes are opposed to each other, the compensation electrodes being formed simultaneously with the data bus lines by using the same exposing mask. The compensation electrodes are electrically connected to the pixel electrode through the contact holes, and assumes the same potential as the one applied to the pixel electrode.Type: GrantFiled: May 24, 2006Date of Patent: November 9, 2010Assignee: Sharp Kabushiki KaishaInventor: Yasuhiro Ohno
-
Patent number: 7808590Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drainType: GrantFiled: November 20, 2008Date of Patent: October 5, 2010Assignee: LG Display Co., Ltd.Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
-
Patent number: 7808587Abstract: A light-shielding plate and a first light-shielding layer are arranged between a polarizing plate and a liquid crystal layer in a peripheral region of a liquid crystal panel so that linearly polarized light transmitted through the polarizing plate, which is a reflection polarizing plate, is not incident on the liquid crystal layer, but is reflected to the polarizing plate in the peripheral region.Type: GrantFiled: September 4, 2008Date of Patent: October 5, 2010Assignee: Sony CorporationInventors: Yasuhiro Shirasaka, Kohichi Ohmura, Hisashi Kadota, Akiko Toriyama, Tsuyoshi Okazaki
-
Patent number: 7808586Abstract: An electrooptic device includes: a pair of first and second substrates that sandwich an electrooptic material; a plurality of pixel electrodes disposed in a pixel region on the first substrate; a first light shielding layer disposed on the second substrate, the first light shielding layer defining the periphery of the pixel region; a sealing material that bonds the first substrate and the second substrate together in a sealing region around the periphery of a first light shielding region having the first light shielding layer; a dustproof substrate disposed on the surface of the second substrate opposite to the electrooptic material; a second light shielding layer disposed on the dustproof substrate so as to enclose the pixel region; and a third light shielding layer disposed on the dustproof substrate so as to at least partly overlap with the first and second light shielding layers.Type: GrantFiled: June 4, 2007Date of Patent: October 5, 2010Assignee: Seiko Epson CorporationInventor: Hiroaki Mochizuki
-
Patent number: 7804552Abstract: An object of the present invention is to provide a pixel structure capable of shielding light between a TFT and a pixel without using a light shielding mask (black matrix) in an electro-optical display device. The present invention has a feature in that, as one of means for shielding light, a lamination film consisting of two colored layers (a lamination layer of a red-colored layer and a blue-colored layer) is formed on an opposing substrate as a light shielding portion so as to overlap with a TFT formed on a device electrode.Type: GrantFiled: May 3, 2001Date of Patent: September 28, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yuugo Goto, Hideki Katsura
-
Patent number: 7804096Abstract: A semiconductor device includes: a substrate; a plurality of island-shaped light shielding films formed on the substrate; a first insulating film formed between the plurality of light shielding films; a second insulating film formed on the first insulating film and the plurality of light shielding films; and semiconductor elements each having a semiconductor film. The step difference is not generated between an interface between the first insulating film and the second insulating film and an interface between each of the plurality of light shielding films and the second insulating film. Each of the plurality of light shielding films is disposed between each of the semiconductor films and the substrate.Type: GrantFiled: December 8, 2005Date of Patent: September 28, 2010Assignee: Seiko Epson CorporationInventor: Hiroaki Jiroku
-
Patent number: 7800718Abstract: An electro-optical device includes: a light-shielding film provided below a transistor in a peripheral area surrounding a pixel area of the display. The light-shielding film includes a rectangular opening formed in a channel length direction of the transistor.Type: GrantFiled: July 15, 2008Date of Patent: September 21, 2010Assignee: Seiko Epson CorporationInventor: Masashi Nakagawa
-
Patent number: 7800725Abstract: Disclosed is liquid crystal display, a substrate for a liquid crystal display and a method for manufacturing the substrate. The substrate comprises a transparent electrode formed on the insulating substrate, and a black matrix formed on the transparent electrode and performing the function also of protrusions. The method comprises the steps of forming a transparent electrode on a substrate, forming a black matrix layer, depositing a photosensitive material on the black matrix layer to form a photosensitive layer, patterning the photosensitive layer, and etching the black matrix layer using the photosensitive layer as a mask.Type: GrantFiled: May 11, 2001Date of Patent: September 21, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Byoung-Sun Na, Jong-Soo Yoon
-
Patent number: 7796217Abstract: A liquid crystal display panel including two substrates combined together through a sealing material applied to a peripheral portion thereof. A liquid crystal is sealed between the substrates, and there is a picture-frame area on the substrates, outside a display area and inside a region where the sealing material is formed. A light-shield film is formed in the picture-frame area in the form of a frame surrounding the display area, wherein the light-shield film does not overlap the sealing material. A first conductive film is formed in the picture-frame area on either of the substrates, outside the light-shield film, in the form of a continuously connected frame surrounding the display area and in the same layer as a pixel electrode formed at each pixel in the display area. A second conductive film is formed on the other of the substrates, facing the first conductive film.Type: GrantFiled: March 21, 2005Date of Patent: September 14, 2010Assignee: Sharp Kabushiki KaishaInventor: Hidehiko Suzuki
-
Patent number: 7768601Abstract: A gate wire including a gate line and a gate electrode is formed on an insulating substrate of a TFT array panel. A semiconductor pattern made of amorphous silicon is formed on the gate insulating layer covering the gate wire. A data wire including a data line, a source electrode, and a drain electrode is formed on the semiconductor pattern or the gate insulating layer covering the gate wire. A part of the semiconductor pattern extends under the data line, and a light blocking member overlapping the semiconductor pattern under the data line is formed using the same layer as the gate wire. The light blocking member is to prevent light incident upon the substrate from a backlight from entering the amorphous silicon layers; therefore, the stripes of different brightness and waterfall phenomenon in which the stripes move up and down can be removed in an LCD using a backlight driven by a rectangular wave of ON/OFF signals outputted from inverter.Type: GrantFiled: September 18, 2008Date of Patent: August 3, 2010Assignee: Samsung Electronics Co., LtdInventor: Dong-Gyu Kim
-
Patent number: 7755735Abstract: A pixel structure of a liquid crystal display panel includes a scan line, a data line, a thin film transistor (TFT), a pixel electrode, a light-shielding pattern, and a common line. The data line includes a first data line section and a second data line section composed respectively of the first material layer and second material layer and electrically connected to each other through a plurality of contact plugs. In addition, the pixel electrode is electrically connected to a drain of the TFT, and the light-shielding pattern, which is a floating metal, is disposed over the first data line section. The common line, the light-shielding pattern, and the second data line section are composed of the same material layer.Type: GrantFiled: May 6, 2008Date of Patent: July 13, 2010Assignee: AU Optronics Corp.Inventors: Kuo-Yu Huang, Ke-Chih Chang
-
Patent number: 7746429Abstract: A liquid crystal display (LCD) panel including a thin film transistor (TFT) array substrate, a color filter substrate, a sealant, and a liquid crystal layer is provided. The TFT array substrate includes a substrate, a plurality of pixel structures, a plurality of scan lines, a plurality of data lines, and a light-shielding pattern. The scan lines and data lines are disposed on the substrate for controlling the operation of the pixel structures. The light-shielding pattern arranged on the periphery of the panel traverses the scan lines and data lines and is electrically insulated from the scan lines and data lines. The sealant is sandwiched between the TFT array substrate and the color filter substrate and is corresponding to the light-shielding pattern. The liquid crystal layer is disposed between the TFT array substrate, the color filter substrate, and the sealant.Type: GrantFiled: November 26, 2006Date of Patent: June 29, 2010Assignee: Au Optronics CorporationInventors: Hao-Chieh Lee, Ming-Hung Shih
-
Patent number: 7738056Abstract: A liquid crystal display capable of improving the brightness without depending on the aperture ratio. By setting a lower polarization plate between an array substrate and a color filter substrate, the light reflected from a metal film formed on the array substrate can directly return to a light guide plate. Therefore, the light recycling efficiency is improved and the brightness of the liquid crystal display is improved.Type: GrantFiled: October 31, 2007Date of Patent: June 15, 2010Assignee: International Business Machines CorporationInventors: Takatoshi Tsujimura, Hiroyuki Kamiya
-
Patent number: 7733444Abstract: Residual direct-current charges may be accumulated and distributed non-uniformly on the built-in color filters in a displaying panel such as the liquid-crystal-on-silicon displaying device, and thus results in the non-uniformity of the internal electric field that controls the arrangement of liquid crystal molecules. To reduce residual direct-current charges so as to cause the internal electric field to be substantially uniform, the present invention provides a structure of the display panel including a plurality of shields for respectively enclosing a plurality of color filters, wherein each shield is connected to a corresponding pixel electrode by a conductive wire.Type: GrantFiled: January 25, 2008Date of Patent: June 8, 2010Assignee: Himax Display, Inc.Inventors: Yi Hua Wang, Wei Hsiao Chen, Shu Chan Hsiao
-
Patent number: 7724326Abstract: The liquid crystal display device of the invention has a plurality of pixels, each including a first electrode 111, a second electrode 131 and a vertically aligned liquid crystal layer 120 interposed between the first and second electrodes. The first electrode has at least one opening 114 or cut 113 formed at a predetermined position in the pixel. At least one shading conductive layer 116 electrically connected to the first electrode is formed at least near the at least one opening or cut. In each of the plurality of pixels, a plurality of regions in which the directions of tilt of liquid crystal molecules are different from one another are formed when at least a predetermined voltage is applied across the liquid crystal layer.Type: GrantFiled: February 22, 2005Date of Patent: May 25, 2010Assignee: Sharp Kabushiki KaishaInventors: Tsunanori Kitoh, Takeshi Kawahara, Kazuhiko Tamai, Noriaki Onishi, Yasuhiro Kume, Takaaki Okamoto
-
Publication number: 20100097546Abstract: A pixel structure of a liquid crystal display includes a substrate, a light shielding element, a first data line, a second data line and a pixel electrode. The light shielding element is formed on the substrate. The first and second data lines are formed along the light shielding element, and the second data line overlaps with portions of the light shielding element. The pixel electrode overlaps with portions of the first data line and the light shielding element without overlapping with the second data line.Type: ApplicationFiled: December 30, 2008Publication date: April 22, 2010Applicant: HANNSTAR DISPLAY CORP.Inventors: Tsu Chiang CHANG, Po Sheng SHIH, Po Yang CHEN, Chao Hui WU
-
Patent number: 7701541Abstract: A method of forming a storage capacitor in an IPS liquid crystal display device is proposed, and a technique of forming a pixel region having a high aperture ratio is provided. An anodic oxidation process at an applied voltage/voltage supply time ratio of 11 V/min is performed for insulating films used in each circuit of an electro-optical device, typically an IPS method LCD, in particular for the surface of a common electrode formed on a resin film. The amount of formation of the extra anodic oxide film can be reduced by covering with an anodic oxide film, and a liquid crystal display device with high reliability and having an electrode with superior adhesion can be manufactured.Type: GrantFiled: October 17, 2006Date of Patent: April 20, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Satoshi Murakami
-
Patent number: 7679698Abstract: A vertical alignment liquid crystal display device includes: a pair of substrates which are arranged opposite each other; a liquid crystal layer which is interposed between the paired substrates; an interlayer insulating film which is formed on at least either the first substrate or the second substrate and provided with an aperture which is rectangular when viewed in plan and opened toward the other substrate; a transmissive region provided within the periphery of the aperture and performs transmissive display; and a reflective electrode which is arranged along the periphery of the aperture. The liquid crystal display device further includes a light shield for preventing light from passing through discontinuity regions which are included in a portion of the liquid crystal layer corresponding to the aperture and where liquid crystal molecules are oriented in a discontinuous manner.Type: GrantFiled: April 25, 2005Date of Patent: March 16, 2010Assignee: Sharp Kabushiki KaishaInventors: Kazuyoshi Fujioka, Tooru Sonoda
-
Patent number: 7671939Abstract: A liquid crystal display element includes: a first substrate having a first surface and including a pixel electrode; a second substrate having a second surface opposing to the first surface, and including a light-shielding film, a thickness adjusting film and a counter electrode arranged in sequence in a direction to the second surface; a sealing material having a frame-shape to bond the first substrate and the second substrate; a liquid crystal layer provided in a region surrounded by the sealing material and between the first substrate and the second substrate, wherein the thickness adjusting film is provided to cover the light-shielding film to define the thickness of the liquid crystal layer, and has a contact hole, wherein the counter electrode is provided to oppose to the pixel electrode, and electrically connected to the light shielding film via the contact hole.Type: GrantFiled: December 22, 2006Date of Patent: March 2, 2010Assignee: Mitsubishi Electric CorporationInventors: Toshio Araki, Makoto Hirakawa, Tomoki Nakamura
-
Patent number: 7667784Abstract: A liquid crystal display device includes first and second substrates facing each other with a predetermined space therebetween, a liquid crystal material layer disposed between the first and second substrates, a seal pattern formed between the first and second substrates to surround the liquid crystal material layer, and a blocking layer formed over a first surface of the second substrate to cover the seal pattern.Type: GrantFiled: December 20, 2002Date of Patent: February 23, 2010Inventors: Woong-Kwon Kim, Seung-Ryul Park
-
Patent number: 7659947Abstract: A liquid crystal layer is provided between a pair of substrates, one of the pair of substrates is provided with a pixel region including a TFT and a light shielding layer in which an opening portion is formed, a semiconductor layer composing the TFT is overlapped with the light shielding layer and formed along one side of the opening portion, and an alignment of a liquid crystal molecule is controlled such that light which transmits through the liquid crystal layer is incident as polarized light perpendicular to the one side of the opening portion. The liquid crystal layer is particularly made of more a TN mode liquid crystal.Type: GrantFiled: February 28, 2003Date of Patent: February 9, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Tatsuya Arao
-
Patent number: 7633566Abstract: An input-capable display device includes a first substrate a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is provided on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed. The shield conductor has a plurality of birefringent structures that are arranged in a stripe.Type: GrantFiled: December 14, 2007Date of Patent: December 15, 2009Assignee: Seiko Epson CorporationInventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
-
Patent number: 7633569Abstract: A liquid crystal display panel capable of reducing a capacitance of a parasitic capacitor between a data line and a pixel electrode. The liquid crystal display panel comprises: a thin film transistor at a crossing of a gate line and a data line, liquid crystal cells including a pixel electrode connected to the thin film transistor; first shield patterns in the liquid crystal cells, each shield pattern being parallel to the data line without overlapping the data line, wherein the shield patterns are insulated from and overlap with an outer portion of the pixel electrode; and a common line arrayed to connect the shield patterns for each the liquid crystal cell.Type: GrantFiled: November 1, 2007Date of Patent: December 15, 2009Assignee: LG Display Co., Ltd.Inventors: Hong Sung Song, Sai Chang Yun, Sang Chang Yun, Jae Woo Lee
-
Patent number: 7619702Abstract: An LCD panel and a method for manufacturing the same is disclosed, in which light leakage is prevented from occurring by forming a dummy pattern in an array peripheral region. The LCD panel includes a first substrate having an array region and an array peripheral region, a gate line on the first substrate, a gate insulating film on the entire surface of the first substrate including the gate line, a data line arranged to cross the gate line for defining a pixel region on the array region, a light leakage prevention film formed between the gate and/or data lines of the array peripheral region for preventing light leakage in the panel, and a TFT and a pixel electrode formed in each pixel region.Type: GrantFiled: April 11, 2005Date of Patent: November 17, 2009Assignee: LG Display Co., Ltd.Inventors: Dong Yeung Kwak, Ki Tae Kim
-
Patent number: 7612863Abstract: A liquid crystal display that is subject to pixel-high defects due to manufacturing anomalies is provided with programmable repair means for each pixel electrode. In one embodiment, a transistor-array substrate is provided with plural gate lines that are separated from each other by a first interval, plural data lines that are insulated from the gate lines while crossing the gate lines, and separated from each other by a second interval larger than the first interval, thereby defining plural pixel areas. Each pixel area has a corresponding pixel unit comprising a switching device, pixel electrode, and repair electrode. The repair electrode branches from a neighboring gate line and extends such that the repair electrode is in overlapping spaced-apart relation with the pixel electrode and selectively connectable to the pixel electrode.Type: GrantFiled: May 4, 2007Date of Patent: November 3, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Beom-Jun Kim, Jong-Hwan Lee, Sang-Jin Jeon, Sung-Man Kim, Bong-Jun Lee, Hong-Woo Lee
-
Patent number: 7605876Abstract: Image display device having an electrode forming layer which includes a plurality of lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulted by insulating layer.Type: GrantFiled: October 29, 2007Date of Patent: October 20, 2009Assignee: Hitachi, Ltd.Inventors: Yoshiaki Nakayoshi, Kazuhiko Yanagawa
-
Patent number: 7594976Abstract: The present application is related to substrates having light transmitting areas and light shielding areas. The application discloses methods of manufacturing the substrates, including modifying a light shielding layer be contact to a structured surface.Type: GrantFiled: May 13, 2005Date of Patent: September 29, 2009Assignee: 3M Innovative Properties CompanyInventors: Jeffrey O. Emslander, John R. David, Ronald S. Steelman, Danny L. Fleming, Robert K. Galkiewicz, Graham M. Clarke
-
Patent number: 7586555Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line and a data line on the first substrate, the gate line and the data line crossing each other to define a pixel region; a thin film transistor connected to the gate line and the data line, the thin film transistor including a gate electrode, a source electrode and a drain electrode; a first shielding layer covering a space between the source and drain electrodes; a color filter layer on the first shielding layer; a pixel electrode on the color filer layer; a black matrix on the second substrate, the black matrix corresponding to the gate line and the data line; a common electrode on the black matrix; a patterned spacer on the common electrode, the patterned spacer corresponding to the black matrix; and a liquid crystal layer between the pixel electrode and the common electrode.Type: GrantFiled: December 2, 2004Date of Patent: September 8, 2009Assignee: LG Display Co., Ltd.Inventor: Dong-Hoon Lee
-
Patent number: 7567308Abstract: A liquid crystal display apparatus has a transparent substrate having a transparent common electrode formed thereon; an active matrix substrate having pixels with reflective pixel electrodes, the pixels being formed in column and row directions on the matrix substrate in a matrix fashion, each pixel having a switching transistor with a gate, a drain and a source, and a signal-charging capacitor; a liquid crystal layer provided between the common electrode and the pixel electrode; a column-signal electrode driver and a row-scanning electrode driver for activating the matrix substrate; column-signal electrodes connected to the column-signal electrode driver, the gate being connected to each column-signal electrode; and row-scanning electrodes connected to the row-scanning electrode driver, the drain being connected to each row-scanning electrode, each pixel electrode being provided at an intersection of each column-signal electrode and each row-scanning electrode, each pixel electrode and the capacitor being coType: GrantFiled: November 23, 2005Date of Patent: July 28, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Masato Furuya
-
Patent number: 7554630Abstract: An LCD device with improved an aperture ratio and decreased parasitic capacitance has a passivation layer of an inorganic material and which includes a gate line on a first substrate; a gate insulating layer on an entire surface of the first substrate including the gate line; a data line on the gate insulating layer in perpendicular to the gate line, to define a pixel region; a thin film transistor at a crossing portion of the gate and data lines; a passivation layer on the entire surface of the first substrate including the thin film transistor; a pixel electrode on the passivation layer, for being connected with a drain electrode of the thin film transistor; and a light-shielding metal for receiving a voltage, formed between the data line and the pixel electrode, to prevent a parasitic capacitance between the data line and the pixel electrode.Type: GrantFiled: December 30, 2004Date of Patent: June 30, 2009Assignee: LG Display Co., Ltd.Inventors: Keuk Sang Kwon, Dae Lim Park, Seong Soo Hwang, Sung Gu Kang, Jong Hwae Lee, Bung Goo Kim, Jong A Choi
-
Patent number: 7542198Abstract: A system and method for an optical component that masks non-active portions of a display and provides an electrical path for one or more display circuits. In one embodiment an optical device includes a substrate, a plurality of optical elements on the substrate, each optical element having an optical characteristic which changes in response to a voltage applied to the optical element, and a light-absorbing, electrically-conductive optical mask disposed on the substrate and offset from the plurality of optical elements, the optical mask electrically coupled to one or more of the optical elements to provide electrical paths for applying voltages to the optical elements. In another embodiment, a method of providing an electrical signal to optical elements of a display comprises electrically coupling an electrically-conductive light-absorbing mask to one or more optical elements, and applying a voltage to the mask to activate the one or more optical elements.Type: GrantFiled: October 26, 2007Date of Patent: June 2, 2009Assignee: IDC, LLCInventor: Manish Kothari
-
Patent number: 7532279Abstract: A reflective liquid crystal display device and a liquid crystal display unit capable of achieving high moisture resistance and securing long-term reliability through specifically preventing electrode corrosion in a surface portion of a pixel electrode substrate are provided. A seal portion bonds a pixel electrode substrate and a transparent electrode substrate together with a predetermined spacing in between. In this case, the pixel electrodes and a metal film are formed inside an outer surface of the seal portion on the pixel electrode substrate. Thereby, the pixel electrodes and the metal film are not exposed to air, and the moisture resistance can be secured, and electrode corrosion can be prevented. Moreover, as an adhesive surface of the seal portion is a substrate surface, compared to the case where peripheral end surfaces of the whole device are coated, sufficient adhesion can be secured for a long term.Type: GrantFiled: March 22, 2005Date of Patent: May 12, 2009Assignee: Sony CorporationInventor: Osamu Akimoto
-
Patent number: 7522247Abstract: An active matrix display is provided with conductor lines extending along edges of the display over the display substrate but outside the display area. These conductor lines include at least one layer which is additional to the thin film layers defining the array of pixels. Row driver circuitry and/or column driver circuitry has a portion provided on the common substrate outside the display area and which connects to the conductor lines. A dedicated process may be used for the conductor lines in order to form low resistance lines. These assist in the integration or mounting of row or column driver circuits onto the common substrate.Type: GrantFiled: July 7, 2004Date of Patent: April 21, 2009Assignee: Chi Mei Optoelectronics CorporationInventor: Steven C. Deane
-
Patent number: 7508468Abstract: A light blocking mask covering half of a picture element is formed on a first substrate. Thereafter, the first substrate and a second substrate are placed to face each other, and liquid crystals with negative dielectric anisotropy are sealed between these substrates, whereby a liquid crystal panel is formed. A polymer constituent which is polymerized by light is added in advance to the liquid crystals. Next, ultraviolet is irradiated from the side of the first substrate, and, after removing the light blocking mask, ultraviolet is once again irradiated. Thus, in picture element, a region where binding force with respect to liquid crystal molecules is large (a region where a threshold voltage in transmittance-voltage characteristics is high) and a region where binding force with respect to liquid crystal molecules is small (a region where a threshold voltage in transmittance-voltage characteristics is low) are formed.Type: GrantFiled: March 21, 2006Date of Patent: March 24, 2009Assignee: Sharp Kabushiki KaishaInventors: Shingo Kataoka, Hiroyasu Inoue
-
Patent number: 7508483Abstract: A liquid crystal display and a driving method thereof which enables stable operation at a low temperature. A liquid crystal display includes a panel with a first substrate on which a conductive black matrix is formed and a second substrate which faces the first substrate, and liquid crystal interposed between the substrates. The first and second substrates are assembled together using a sealant. The liquid crystal display further includes a temperature sensor for sensing a temperature of the panel and/or a temperature of its surroundings, and a power supply for controlling the temperature of the panel in response to the temperature sensed by the temperature sensor.Type: GrantFiled: May 11, 2005Date of Patent: March 24, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Jin-Woo Park, Tae-Soo Kim, Tae-Hyeong Jung
-
Publication number: 20090059141Abstract: An electro-optic device includes: A frame light-shielding film defined a periphery of a pixel area. A frame light-shielding film having an opening at a predetermined position. An alignment mark formed in the opening. An opening light-shielding film formed so as to shield the opening in plan view.Type: ApplicationFiled: August 28, 2008Publication date: March 5, 2009Applicant: SEIKO EPSON CORPORATIONInventor: Hitoya NAGASAWA
-
Patent number: 7499121Abstract: A display capable of inhibiting a transistor from an instable operation resulting from fluctuation of the potential of a shielding film and suppressing occurrence of a malfunction is provided. This display comprises a first region including a first transistor, a first shielding film provided on the first region, arranged on a region corresponding to the first transistor and supplied with a first potential, a second region including a second transistor and a second shielding film provided on the second region, arranged on a region corresponding to the second transistor and supplied with a second potential.Type: GrantFiled: December 22, 2005Date of Patent: March 3, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Yukihiro Noguchi, Shoichiro Matsumoto, Naoya Sotani, Daisuke Ide, Yasutaka Kobayashi, Yoshiyuki Ishizuka, Isao Hasegawa
-
Patent number: 7486357Abstract: The present invention generally relates to a liquid crystal panel using a thin film transistor and a manufacturing method thereof, and more specifically to a liquid crystal panel using a thin film transistor and a manufacturing method thereof for improving an opening ratio by forming a storage capacitor under a channel. The present invention has suggested a method for effectively contacting an upper electrode for forming a capacitor with a lower electrode since the storage capacitor is located under the channel. Compared to a prior art in which one of storage capacitor electrodes is formed side by side with a channel of a thin film transistor, capacitor electrodes formed according to the present invention are located near to a substrate, thereby forming contact electrodes in many times without forming them one time.Type: GrantFiled: April 22, 2005Date of Patent: February 3, 2009Assignee: Iljin Display Co., Ltd.Inventors: Seok Pil Jang, Hong Ryul Kim
-
Patent number: RE40770Abstract: A liquid crystal device has a structure in which an electric field is applied across a liquid crystal in a direction substantially parallel to the plane of a substrate. A conductive film is formed on a first substrate on which an electric field control is provided, and also on a color filter substrate located opposite the first substrate, and the conductive films are maintained at either a ground voltage, a common electrode voltage, the center voltage of an image signal, a non-selection voltage of a scanning signal, or a logic voltage of an external driver or otherwise the voltage of the conductive films is maintained in a floating state. The liquid crystal device having the above structure displays a high-quality image without encountering an influence of electrostatic charges.Type: GrantFiled: November 8, 2005Date of Patent: June 23, 2009Assignee: Seiko Epson CorporationInventor: Tsuyoshi Maeda