Split Pixels Patents (Class 349/144)
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Patent number: 8830414Abstract: 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: GrantFiled: September 23, 2011Date of Patent: September 9, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seob Kim, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong
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Patent number: 8830436Abstract: A pixel structure includes: a first planarizing film and a second planarizing film laminated in order on a substrate on which a circuit section is formed; and metallic wiring for electrically connecting two electrodes disposed on the second planarizing film to each other so as to be separated from each other, the metallic wiring being formed between the first planarizing film and the second planarizing film.Type: GrantFiled: November 28, 2011Date of Patent: September 9, 2014Assignee: Japan Display West Inc.Inventors: Masaya Tamaki, Koichi Nagasawa, Shuji Hayashi, Masaaki Kabe, Yoko Fukunaga
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Publication number: 20140247418Abstract: A liquid crystal display panel comprise a first substrate, a second substrate and a electrode structure. The electrode structure is disposed on the first substrate. The electrode structure further comprises a first sub-electrode having a first stem electrode with a first end edge and a first branch electrode nearest the first end edge, and a second sub-electrode having a second stem electrode with a second end edge and a second branch electrode nearest the second end edge. The first sub-electrode and the second sub-electrode are adjacent to each other, and the first end edge are adjacent to the second end edge. A first distance between the first end edge and the first branch electrode is different from a second distance between the second end edge and the second branch electrode.Type: ApplicationFiled: May 13, 2014Publication date: September 4, 2014Applicant: Innolux CorporationInventors: Chien-Hung CHEN, Ching-Che YANG
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Publication number: 20140247419Abstract: A liquid crystal display panel comprise a first substrate, a second substrate and a electrode structure. The electrode structure is disposed on the first substrate and defining a pixel. The electrode structure further comprises a first sub-electrode having a first stem electrode with a first end edge and a first branch electrode nearest the first end edge, and a second sub-electrode having a second stem electrode with a second end edge and a second branch electrode nearest the second end edge. The first sub-electrode and the second sub-electrode are adjacent to each other, and the first end edge and the second end edge are adjacent to the same side of the pixel. A first distance between the first end edge and the first branch electrode is different from a second distance between the second end edge and the second branch electrode.Type: ApplicationFiled: May 13, 2014Publication date: September 4, 2014Applicant: Innolux CorporationInventors: Chien-Hung CHEN, Ching-Che YANG
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Patent number: 8823912Abstract: A liquid crystal display includes a first substrate; and a pixel electrode including a first sub-pixel electrode and a second sub-pixel electrode formed at a distance from each other on the first substrate, the first sub-pixel electrode includes stem portions and a plurality of branch portions extended from the stem portions, and the second sub-pixel electrode surrounds the first sub-pixel electrode.Type: GrantFiled: September 14, 2012Date of Patent: September 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Oh Jeong Kwon, Jae Hong Park, Sung-Jae Yun, Shuai Jiang, Kyung Hye Park, Joo Young Yoon, Hyeok Jin Lee
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Patent number: 8817215Abstract: A pixel structure including a substrate, a scan line, a first data line and a first pixel unit is provided. The scan line and the first data line are disposed on the substrate. The first pixel unit includes a first active device and a first pixel electrode. The first active device is electrically connected to the scan line and the first data line. The first pixel electrode electrically connected to the first active device has a first stripe pattern and a plurality of first branches. One side of the first stripe pattern is connected to the first branches extended toward the scan line, and the other side of the first stripe pattern is overlapped with the scan line. The overlapped width of the first stripe pattern with the scan line is substantially equal to 40% to 90% of the width of the first stripe pattern.Type: GrantFiled: April 11, 2010Date of Patent: August 26, 2014Assignee: Au Optronics CorporationInventors: Wei-Yuan Cheng, Chin-An Tseng, Yen-Heng Huang, Chia-Hui Pai, Chung-Kai Chen, Wen-Hsien Tseng, Ting-Yi Cho, Chia-Yu Lee
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Patent number: 8810759Abstract: An MVA mode liquid crystal display device has a liquid crystal layer including liquid crystal molecules having negative dielectric constant anisotropy held between a first substrate and a second substrate. It includes a structural body which controls an alignment direction of the liquid crystal molecules to form a multi-domain in each of pixels. The structural body includes a first structural body which overlaps a light-blocking wiring line, and a second structural body which is disposed in a direction substantially perpendicular to the first structural body and is narrower than the first structural body.Type: GrantFiled: September 11, 2012Date of Patent: August 19, 2014Assignee: Japan Display Inc.Inventors: Norihiro Yoshida, Yoshitaka Yamada, Jin Hirosawa, Arihiro Takeda
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Patent number: 8810763Abstract: A pixel electrode structure of a display device is discussed. According to an embodiment, the pixel electrode structure includes a plurality of sub pixel electrodes disposed substantially in parallel in the pixel region, wherein the sub pixel electrodes have progressively greater widths and progressively greater spaces therebetween starting from one side of the pixel region to the other opposite side of the pixel region.Type: GrantFiled: December 12, 2006Date of Patent: August 19, 2014Assignee: LG Display Co., Ltd.Inventors: Moo Hyoung Song, Hoan Su Shim
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Patent number: 8804084Abstract: A liquid crystal display panel is provides and includes a pair of substrates arranged face to face so as to sandwich a liquid crystal layer. The liquid crystal device includes on one of the pair of substrates: a lower electrode; an upper electrode formed on a surface of the lower substrate through an insulating layer, in which plural slits are formed in each sub-pixel; and an alignment film formed so as to cover a surface of the upper electrode and the insulating layer. The plural slits have different widths at both ends of slits in a longitudinal direction.Type: GrantFiled: December 22, 2010Date of Patent: August 12, 2014Assignee: Japan Display West Inc.Inventors: Aya Yoso, Joji Nishimura, Hayato Kurasawa
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Patent number: 8803777Abstract: In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage.Type: GrantFiled: March 29, 2013Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee-Wook Do, Seung-Beom Park, Hoon Kim, Hye-Ran You, Jian Gang Lu, Hee-Seop Kim, Young-Chol Yang, Seoung-Hoon Lee
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Patent number: 8804083Abstract: A liquid crystal display device includes upper and lower pixels; gate lines in electrical connection with the adjacent pixels and extending in a row direction, and data lines which cross the gate lines; and a reference voltage line including a vertical portion which passes through the adjacent pixels, and horizontal portions which alternately extend from the vertical portion. Each of the adjacent pixels includes first and second thin film transistors (TFTs) each in electrical connection with a gate line and a data line which correspond to a respective pixel; and a pixel electrode including a first subpixel electrode in connection with an output terminal of the first TFT, and a second subpixel electrode in connection with an output terminal of the second TFT. The horizontal portions of the reference voltage line are in electrical connection with the second subpixel electrodes of the adjacent pixels.Type: GrantFiled: August 23, 2012Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Kyung-Ho Park, Bo-Yeong Kim, Jae-Won Kim, Byoung-Sun Na, Hyung-Jun Park, Dong-Hyun Yoo, Kye-Uk Lee
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Patent number: 8804081Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.Type: GrantFiled: October 6, 2010Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
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Patent number: 8804077Abstract: A liquid crystal display device includes: a first substrate and a second substrate opposed to each other; and a liquid crystal layer placed between the first and second substrates. The device has a plurality of pixels each having a transmission region configured to transmit light coming from the first substrate side and a reflection region configured to reflect light coming from the second substrate side at the first substrate. A transparent layer is provided in the reflection region for rendering the liquid crystal layer thinner in the reflection region than in the transmission region. A groove is formed between the pixels on the surface of the first substrate facing the liquid crystal layer.Type: GrantFiled: July 6, 2009Date of Patent: August 12, 2014Assignee: Sharp Kabushiki KaishaInventor: Hironobu Tatsumi
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Publication number: 20140218347Abstract: In a liquid crystal display one pixel is divided into two subpixels, the two subpixels are connected to two subdata lines extending from one data line, and a desired data voltage is applied by using a data driving switching element connected to the subdata line, thereby reducing the number of data lines needed to reduce the cost of the driver and preventing a lack of space to mount the data driver while dividing one pixel into two subpixels and differently applying voltages of the two subpixels.Type: ApplicationFiled: January 29, 2014Publication date: August 7, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: CHEOL-GON LEE, Chong Chul Chai, Joon-Chul Goh, Yeong-Keun Kwon, Jong Hee Kim
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Patent number: 8797490Abstract: A liquid crystal display device including first and second substrates, with a liquid crystal layer sealed therebetween. The device also includes a first electrode formed on the first substrate, a second electrode formed on the second substrate, a first molecule orientation film formed on the first substrate so as to cover the first electrode, a second molecule orientation film formed on the second substrate so as to cover the second electrode, and a plurality of micro structures associated with at least one of the first and second electrodes, wherein at least some of the micro structures extend generally parallel to each other. When a driving voltage is applied between the first and second electrodes, liquid crystal molecules of the liquid crystal layer are oriented such that no dark line occurs in a vicinity of the plurality of micro structures and no dark line occurs between adjacent micro structures.Type: GrantFiled: September 18, 2013Date of Patent: August 5, 2014Assignee: Sharp Kabushiki KaishaInventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Hiroyasu Inoue, Takashi Takagi
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Patent number: 8792064Abstract: A pixel array including first scan lines, second scan lines, data lines, and sub-pixels is provided. Each sub-pixel includes a first switch, a second switch, a first pixel electrode electrically connected to the first switch, a second pixel electrode electrically connected to the second switch, a third switch, and common lines connected with each other and disposed under the first and the second pixel electrode. The first and the second switch are electrically connected to the same first scan line and data line. The first scan line is located between the first and second pixel electrode. The third switch is electrically connected to the second scan line and the first pixel electrode and has a floating terminal. The floating terminal is capacitively coupled to the common line under the second pixel electrode to form a capacitor.Type: GrantFiled: July 12, 2011Date of Patent: July 29, 2014Assignee: Au Optronics CorporationInventors: Tien-Lun Ting, Chieh-Wei Chen, Chih-Haw Wang, Chung-Yi Chiu, Wen-Hao Hsu, Jenn-Jia Su
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Patent number: 8792065Abstract: The present invention discloses a sub-pixel display structure and a liquid crystal display panel using the same. The sub-pixel display structure includes two electrode portions. One of the electrode portions can perform charge-sharing via a charge-sharing switch. At least one of the two electrode portions is further connected to an extra electrode portion. When being used in a 3D liquid crystal display panel having a patterned phase retarder film, the sub-pixel display structure can satisfy the requirement of 3D view angle by making the extra electrode portion to be shielded by black matrix, and the two electrode portions still remain operatable so that a color washout phenomenon under a large viewing angle can be reduced even in a 3D liquid crystal display panel.Type: GrantFiled: August 8, 2012Date of Patent: July 29, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Zan Yang, Chih-Wen Chen, Chia-chiang Hsiao
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Patent number: 8786813Abstract: The present invention provides a liquid crystal display and pixel units thereof. The pixel unit has a plurality of subpixel units, and each of the subpixel units is a rectangular block, and the rectangular block is divided into a triangular bright-partition and a triangular dark-partition along an inclined line, and the bright-partition of each subpixel unit corresponds to the dark-partitions of adjacent subpixel units, so as to reduce jagged phenomenon of lines in screen images with the configuration of the pixel unit, and thereby enhance image quality of the liquid crystal display.Type: GrantFiled: September 1, 2010Date of Patent: July 22, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Chengming He, Liangchan Liao, Dongsheng Guo, Chihsien Li
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Patent number: 8786811Abstract: A liquid crystal display device using a horizontal electric field mode, in which contrast ratio is improved, is provided. A first polarizing plate having a polarization axis along a first direction, a second polarizing plate having a polarization axis along a second direction orthogonal to the first direction, a plurality of first structure bodies provided over a first substrate, a plurality of second structure bodies provided over the first substrate, a first electrode layer covering top surfaces and side surfaces of the plurality of first structure bodies, and a second electrode layer covering top surfaces and side surfaces of the plurality of second structure bodies are provided. The side surfaces of the first structure bodies and the side surfaces of the second structure bodies are parallel to the first direction or the second direction. Thus, a liquid crystal display device in which contrast ratio is improved can be provided.Type: GrantFiled: February 15, 2012Date of Patent: July 22, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daisuke Kubota, Akio Yamashita, Masaru Nakano
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Patent number: 8780308Abstract: Disclosed herein is a pixel structure switchable between a wide viewing angle mode and a narrow viewing angle mode. The pixel structure includes a first substrate, a first and a second gate lines, a data line, a pixel unit, a second substrate and a display medium. The pixel unit includes a first active element, a second active element, a first sub-pixel electrode, a second sub-pixel electrode, and a common electrode. The first and second sub-pixel electrodes are respectively electrically connected to the first and second active elements. The common electrode is opposite to the first and second sub-pixel electrodes. The second substrate has a counter electrode disposed on a surface facing the first substrate. The counter electrode is corresponding to the first sub-pixel electrode.Type: GrantFiled: November 1, 2012Date of Patent: July 15, 2014Assignees: AU Optronics (Suzhou) Corp., Ltd., AU Optronics CorporationInventors: Chun Li, Kun-Piao Lin, Huan-Liang Shen
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Patent number: 8767159Abstract: To improve viewing angle characteristics by varying voltage which is applied between liquid crystal elements. A liquid crystal display device in which one pixel is provided with three or more liquid crystal elements and the level of voltage which is applied is varied between the liquid crystal elements is varied. In order to vary the level of the voltage which is applied between the liquid crystal elements, an element which divides the applied voltage is provided. In order to vary the level of the applied voltage, a capacitor, a resistor, a transistor, or the like is used. Viewing angle characteristics can be improved by varying the level of the voltage which is applied between the liquid crystal elements.Type: GrantFiled: April 20, 2012Date of Patent: July 1, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 8767157Abstract: A liquid crystal display comprises a liquid crystal panel including subpixels formed in a matrix, each of the subpixels comprising: a first area, a second area, and a third area partitioned off in a long-axis direction; a first pixel electrode arranged in the long-axis direction of the first area; second pixel electrodes extending from the first pixel electrode in a central area of the long-axis direction and arranged in the first to third areas; third pixel electrodes extending from the first pixel electrode, divided into third pixel electrodes on one side and third pixel electrodes on the other side with respect to the second pixel electrodes, and arranged in plural number in the first to third areas, the slope of the electrodes arranged in the first and third areas being steeper than the slope of the electrodes arranged in the second area with respect to a virtual horizontal line passing through the central area; a first common electrode disposed on the same layer as the first to third pixel electrodes andType: GrantFiled: November 25, 2009Date of Patent: July 1, 2014Assignee: LG Display Co. Ltd.Inventor: Hyuck Choi
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Patent number: 8767137Abstract: In a liquid crystal display device, the reduction of power consumption is realized by reddening a backlight while maintaining a white balance. An aperture ratio of a red subpixel and an aperture ratio of a blue subpixel are set such that, in a state where an aperture ratio of a green subpixel in each pixel of a liquid crystal panel is fixed to a desired value, white brightness efficiency takes a maximum value which is set based on a balance between light emission efficiency which is increased corresponding to lowering of a color temperature of the backlight and transmissivity of the pixel which is decreased corresponding to the increase of the aperture ratio of the blue subpixel.Type: GrantFiled: January 28, 2011Date of Patent: July 1, 2014Assignee: Japan Display Inc.Inventors: Ikuo Hiyama, Kentaro Ojima, Masahiro Ishii, Shisei Katou, Yoshiro Mikami
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Patent number: 8754999Abstract: A liquid crystal display (LCD) and a method for repairing a defective pixel in the LCD is provided, where a width of a sustain electrode line is reduced or no sustain electrode line is provided for the purpose of ensuring an increased aperture ratio. The LCD includes a gate line, extending in a first direction, and a data wiring being insulated from the gate line. The data wiring includes a source electrode, a drain electrode, and a data line extending in a second direction. A pixel electrode is connected to the drain electrode via a contact hole, and a sustain electrode line is formed in a substantially the same plane as the gate line and has a sustain electrode overlapped by the contact hole.Type: GrantFiled: July 8, 2010Date of Patent: June 17, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sang-Kueon Lee, Yun-Seok Lee, Kweon-Sam Hong, Byeong-Hee Won
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Patent number: 8755020Abstract: A region of the first substrate and the second substrate enclosed by a sealant is a rectangle. The rectangle includes a central region, a pair of first regions between which the central region is interposed in a major-axis direction of the rectangle, a pair of second regions between which the central region is interposed in a minor-axis direction of the rectangle, and a peripheral region that surrounds the central region, the pair of first regions, and the pair of second regions. The spacers are disposed in the central region and the peripheral region except the pair of first regions and the pair of second regions. In the peripheral region, a width from each of the first regions to one long side of the rectangle in an outward direction is larger than a width from one of the second regions to the one long side in the outward direction.Type: GrantFiled: July 24, 2012Date of Patent: June 17, 2014Assignee: Japan Display Inc.Inventor: Osamu Nagashima
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Patent number: 8743036Abstract: 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 and a second thin film transistor are connected to the first sub-pixel electrode. The first thin film transistors is connected to a first gate bus line, and the second thin film transistor is connected to a second bus line.Type: GrantFiled: February 8, 2012Date of Patent: June 3, 2014Assignee: Sharp Kabushiki KaishaInventors: Takashi Sasabayashi, Arihiro Takeda, Hiroyasu Inoue, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro, Tsuyoshi Kamada, Kimiaki Nakamura
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Patent number: 8743331Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.Type: GrantFiled: August 27, 2007Date of Patent: June 3, 2014Assignee: Samsung Display Co., Ltd.Inventor: Jang-Kun Song
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Patent number: 8736781Abstract: A liquid crystal display device includes: a first gate line and a second gate line on a first substrate; a first data line and a second data line crossing the first and second gate lines to define a pixel region; a first thin film transistor connected to the first gate line and the first data line; a second thin film transistor connected to the first gate line and the second data line; a first pixel electrode in the pixel region and connected to the first thin film transistor; a second pixel electrode in the pixel region, connected to the second thin film transistor and including at least one opening therein; a common electrode on a second substrate; and a liquid crystal layer between the second pixel electrode and the common electrode.Type: GrantFiled: June 21, 2010Date of Patent: May 27, 2014Assignee: LG Display Co., Ltd.Inventor: Kyung-Eon Lee
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Patent number: 8736644Abstract: The present invention provides a liquid crystal display device, which includes a plurality of pixel units arranged in a matrix form. Each of the pixel units further includes a first sub-pixel electrode and a second sub-pixel electrode. The first sub-pixel electrode is set at a central position of the pixel unit. The second sub-pixel electrode is circumferentially set along a circumference of the first sub-pixel electrode. With the above arrangement, the present invention improves the ? view angle characteristics of the liquid crystal display device to provide enhanced performance of displaying of the liquid crystal display device and thus improving quality of displaying.Type: GrantFiled: September 28, 2011Date of Patent: May 27, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Shi-Qi Li, Xiao-Hui Yao, Zuo-Min Liao
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Patent number: 8736790Abstract: An OLED display according to an exemplary embodiment includes: a first substrate; a second substrate facing the first substrate; an organic light emitting element on the first substrate; a liquid crystal driving electrode facing the organic light emitting diode at a lower portion of the second substrate; and a plurality of liquid crystals between the organic light emitting element and the liquid crystal driving electrode. In this case, the plurality of liquid crystals has optical isotropy when an electric field is not applied and has optical anisotropy when the electric field is applied.Type: GrantFiled: July 28, 2011Date of Patent: May 27, 2014Assignee: Samsung Display Co., Ltd.Inventor: Kyung-Jun Lee
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Publication number: 20140139797Abstract: A slit electrode, an array substrate and a display device are provided to improve the brightness uniformity of the display image and reduce the color shift, thereby improving the image quality. The slit electrode comprises at least one slit electrode unit including a plurality of first groups of slits arranged in a first direction and a plurality of second groups of slits arranged in a second direction, wherein each of the first groups of slits include at least one first slit arranged in the first direction, and each of the second groups of slits include at least one second slit arranged in the second direction, and wherein the first and the second groups of slits are arranged alternately.Type: ApplicationFiled: November 15, 2013Publication date: May 22, 2014Applicants: HEFEI Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.Inventors: Yujuan ZHAN, Park Ku HYUN
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Patent number: 8730422Abstract: A liquid crystal display uses a layout which reduces the number of data lines relative to the number of pixel columns by providing one data line for every two pixel columns. The display is structured to prevent a passivation layer from becoming opaque due to a manufacturing haze effect by forming the pixel electrode below a gate insulating layer. It is structured to prevent a drain electrode from being damaged due to an etchant used for patterning the pixel electrode. Further, it is structured to prevent a short circuit between a common voltage line and a gate line while not substantially reducing an aperture ratio by disposing a common voltage contact hole for electrically connecting the common voltage line with a common electrode between vertically extending portions of two gate lines that generally extend horizontally.Type: GrantFiled: September 13, 2012Date of Patent: May 20, 2014Assignee: Samsung Display Co., Ltd.Inventors: Gyung-Soon Park, Il Gon Kim, Seon Young Choi, Sung Hoon Kim
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Patent number: 8723901Abstract: A liquid crystal display (LCD) comprises a gate line formed on a first insulation substrate and extending in a first direction; a data line insulated from the gate line and extending in a second direction; a pixel electrode comprising a first sub-pixel electrode connected to the gate line and the data line and a second sub-pixel electrode connected to the gate line and the data line; first and second voltage lines receiving a pair of voltages having opposite phases, from an external source; and first and second storage lines respectively overlapping the first and second sub-pixel electrodes and respectively receiving first and second storage voltages whose phases are inverted at a cycle of at least one frame, wherein the first storage line is connected to the first and second voltage lines by a first switching unit, the second storage line is connected to the first and second voltage lines by a second switching unit, and the first and second switching units apply the pair of voltages to the first and second sType: GrantFiled: June 27, 2008Date of Patent: May 13, 2014Assignee: Samsung Display Co., Ltd.Inventor: Dong-gyu Kim
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Patent number: 8724040Abstract: In an embodiment of the invention, a pixel structure of a 3D display device is provided. The pixel structure of a 3D display device includes a thin film transistor (TFT) substrate including a pixel, wherein the pixel is divided into a first subpixel strip and a second subpixel strip, and each subpixel strip includes a plurality of subpixels, wherein each subpixel is divided into a first area and a second area including one contact hole located in one of the first area and the second area, wherein the locations of the contact holes in the first subpixel strip and the second subpixel strip are the same or the location of the contact holes in the first subpixel strip is a mirror image of the location of the contact holes in the second subpixel strip, and a light modulating element formed on the pixel.Type: GrantFiled: November 2, 2011Date of Patent: May 13, 2014Assignee: Chimei Innolux CorporationInventor: Naoki Sumi
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Patent number: 8724063Abstract: According to one embodiment, a liquid crystal optical apparatus includes first and second substrate units, a liquid crystal layer, and a drive unit. The first substrate unit includes a first substrate having a first major surface, a plurality of first and second electrodes. The first electrodes are provided on the first major surface to extend in a first direction. The second electrodes are provided on the first major surface to extend in the first direction. The second substrate unit includes a second substrate having a second major surface opposing the first major surface and an opposing electrode. The opposing electrode is provided on the second major surface. The liquid crystal layer is provided between the first and second substrate units. The drive unit is electrically connected to the first and second electrodes, and the opposing electrode and forms a refractive index distribution in the liquid crystal layer.Type: GrantFiled: August 29, 2012Date of Patent: May 13, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Ayako Takagi, Shinichi Uehara, Masako Kashiwagi, Masahiro Baba
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Patent number: 8717530Abstract: An embodiment of the invention provides an array substrate for a liquid crystal display comprising a substrate and a gate scanning line, a thin film transistor, a data line, and a passivation layer on the substrate, the passivation layer covering the gate scanning line, the thin film transistor, the data line, and a through hole being formed in the passivation layer. A pixel electrode is formed on the passivation layer and comprises a transmissive part and a reflective part, the transmissive part comprises an amorphous-type indium tin oxide film and a poly-type indium tin oxide film below the amorphous-type indium tin oxide film, and the reflective part comprises the poly-type indium tin oxide film and a metal film covering the poly-type indium tin oxide film.Type: GrantFiled: November 25, 2008Date of Patent: May 6, 2014Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventor: Seongyeol Yoo
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Patent number: 8711316Abstract: A liquid crystal display includes a substrate, a plurality of pixel electrodes formed on the substrate, a common electrode facing the pixel electrodes, and a liquid crystal layer interposed between the pixel electrodes and the common electrode. The pixel electrode includes at least one oblique edge including a plurality of protruded and depressed portions.Type: GrantFiled: February 28, 2013Date of Patent: April 29, 2014Assignee: Samsung Display Co., Ltd.Inventors: Dong-Gyu Kim, Sung-Jae Moon
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Patent number: 8711075Abstract: A liquid crystal display includes first and second pixel electrodes, first to fourth data lines, and a first gate line. The first pixel electrode has separated first primary and secondary sub-pixel electrodes. The second pixel electrode has separated second primary and secondary sub-pixel electrodes. The first data line is coupled to the first secondary sub-pixel electrode and covered by the first pixel electrode. The second data line is coupled to the first primary sub-pixel electrode and covered by the second pixel electrode. The third data line is coupled to the second primary sub-pixel electrode and covered by the second pixel electrode. The fourth data line is coupled to the second secondary sub-pixel electrode. The first gate line is coupled to the first pixel electrode and the second pixel electrode.Type: GrantFiled: October 16, 2008Date of Patent: April 29, 2014Assignee: Au Optronics Corp.Inventors: Pei-Chun Liao, Hung-Lung Hou, Ting-Wei Su
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Patent number: 8711314Abstract: 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: GrantFiled: March 11, 2013Date of Patent: April 29, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 8698969Abstract: Disclosed is a liquid crystal panel comprising a scan signal line (16x), a data signal line (15x), and a transistor (12a) that is connected to the scan signal line (16x) and the data signal line (15x), wherein a pixel (101) is provided with pixel electrodes (17a, 17b). The pixel electrode (17a) is connected to the data signal line (15x) through the transistor (12a). The liquid crystal panel also includes a capacitance electrode (37a) which is electrically connected to the pixel electrode (17a). The capacitance electrode (37a) and the pixel electrode (17a) overlap with each other through an insulating film interposed therebetween; the capacitance electrode (37a) and the pixel electrode (17b) overlap with each other through an insulating film interposed therebetween; and the areas of the overlapping portions are equal to each other.Type: GrantFiled: October 30, 2009Date of Patent: April 15, 2014Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
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Patent number: 8698968Abstract: 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: GrantFiled: June 15, 2011Date of Patent: April 15, 2014Assignee: Samsung Display Co. Ltd.Inventors: Kyoung Ju Shin, Hak Sun Chang, Kyoung Tae Kim, Jun Woo Lee, Min-Sik Jung
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Patent number: 8698991Abstract: A method for manufacturing a liquid crystal display (“LCD”) includes; disposing a gate line including a gate electrode on a substrate, disposing a gate insulating layer on the gate line, disposing a data layer including a data line, source electrode and a drain electrode facing the source electrode on the gate insulating layer, disposing a color filter on the gate insulating layer, disposing an overcoat layer on the color filter, disposing a planarization layer on a portion of the overcoat layer corresponding to the gate line, the data line and the drain electrode, and disposing a pixel electrode in contacted with the overcoat layer in a region corresponding to the color filter.Type: GrantFiled: January 3, 2013Date of Patent: April 15, 2014Assignee: Samsung Display Co., Ltd.Inventors: Su-Jeong Kim, Seung-Beom Park, Jae-Jin Lyu, Keun-Chan Oh, Yoon-Sung Um
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Patent number: 8698990Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.Type: GrantFiled: October 19, 2012Date of Patent: April 15, 2014Assignee: Samsung Display Co., Ltd.Inventor: Jang-Kun Song
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Patent number: 8692967Abstract: A pixel array including a plurality of scan lines, a plurality of data lines, and a plurality of sub-pixel is provided. Each of the sub-pixel arranged in the nth row includes a first switch, a second switch, a first pixel electrode, a second pixel electrode, and a third switch, wherein the first switch and the second switch are electrically connected to the nth scan line and the mth data line, the first pixel electrode is electrically connected to the first switch, the second pixel electrode is electrically connected to a signal output terminal of the second switch. The first pixel electrode has a first aperture above the signal output terminal. The third switch is electrically connected to the (n+1)th scan line and the second pixel electrode, and the second pixel electrode has a second aperture above a floating terminal of the third switch.Type: GrantFiled: July 28, 2010Date of Patent: April 8, 2014Assignee: Au Optronics CorporationInventors: Tien-Lun Ting, Yu-Ching Wu, Yi-Cheng Li, Wen-Hao Hsu, Jenn-Jia Su
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Patent number: 8686932Abstract: A liquid crystal display (LCD) device includes: a plurality of gate lines; a plurality of data lines that cross the gate lines to define pixel regions; a plurality of thin film transistors at the crossings of the gate and data lines, the thin film transistors of vertically adjacent pixels each connected to a shared gate line of the plurality of gate lines and on opposite sides of the shared gate line; and a plurality of pixel electrodes in the pixel regions, wherein each pixel electrode of the plurality of pixel electrodes is formed in two horizontally-adjacent pixel regions.Type: GrantFiled: December 20, 2006Date of Patent: April 1, 2014Assignee: LG Display Co., Ltd.Inventors: Byung Koo Kang, Eui Tae Kim
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Patent number: 8675157Abstract: Provided are a thin-film transistor (TFT) display panel in which grayscale inversion at sides of the TFT display panel is controlled to improve color at sides thereof due to the shifting of chromaticity coordinates, and a liquid crystal display (LCD) including the TFT display panel. The TFT display panel includes a first pixel electrode corresponding to a first pixel, a second pixel electrode corresponding to a second pixel, and a third pixel electrode corresponding to a third pixel, wherein each of the first through third pixel electrodes includes a first subpixel electrode and a second subpixel electrode which receive different data voltages from the data lines, and saw-toothed fine patterns are formed on oblique edges of the first subpixel electrode of the first pixel electrode.Type: GrantFiled: October 4, 2011Date of Patent: March 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seong-Young Lee, Jae-Ho Choi, Joon-Chul Goh, Young-Soo Yoon
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Patent number: 8674919Abstract: Each picture element includes first and second sub-picture elements, each of which includes a liquid crystal capacitor and at least one storage capacitor. After a display voltage representing a certain grayscale level has been applied to the respective sub-picture element electrodes of the first and second sub-picture elements, a voltage difference ?V? is produced between voltages to be applied to the respective liquid crystal capacitors of the first and second sub-picture elements by way of their associated storage capacitor(s). By setting the voltage difference ?V? value of the blue and/or cyan picture element(s) to be smaller than that of the other color picture elements, shift toward the yellow range at an oblique viewing angle can be minimized.Type: GrantFiled: July 17, 2012Date of Patent: March 18, 2014Assignee: Sharp Kabushiki KaishaInventors: Fumikazu Shimoshikiryoh, Kentaroh Irie, Masanori Takeuchi, Nobuyoshi Nagashima, Toshihide Tsubata
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Patent number: 8654268Abstract: An active matrix substrate includes first and second pixel electrodes (17a, 17b) in each pixel region, the first pixel electrode (17a) is connected with a data signal line (15) via a transistor (12), a second pixel electrode (17b) is connected with the first pixel electrode (17a) via a capacitor formed between the second pixel electrode (17b) and a coupling capacitance electrode (67) electrically connected with the first pixel electrode (17a), the second pixel electrode (17b) overlaps a retention capacitor line (18) via an insulating layer, and the insulating layer has a thin region (51a) positioned to be at least a part of a portion which does not overlap the coupling capacitance electrode (67).Type: GrantFiled: July 9, 2009Date of Patent: February 18, 2014Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
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Patent number: 8654271Abstract: Embodiments of the present invention relate to a liquid crystal display. According to an embodiment, a liquid crystal display including a plurality of pixels arranged in a matrix according to an exemplary embodiment of the present invention includes: a plurality of pixel electrodes respectively including a first sub-pixel electrode and a second sub-pixel electrode; a plurality of first thin film transistors connected to the first sub-pixel electrodes; a plurality of second thin film transistors connected to the second sub-pixel electrodes; a plurality of third thin film transistors connected to the second sub-pixel electrodes; a plurality of first gate lines connected to the first and second thin film transistors; a plurality of data lines connected to the first and second thin film transistors; a plurality of second gate lines connected to the third thin film transistors; and a step-down capacitor connected between the drain electrode of the third thin film transistor and the first gate line.Type: GrantFiled: October 12, 2009Date of Patent: February 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: Yun-Seok Lee, Young-Je Cho
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Patent number: RE44817Abstract: A method of forming an oxide film on a surface of a copper alloy, including the steps of providing a copper alloy including copper and an element selected from the group consisting of Mn, Zn, Ga, Li, Ge, Sr, Ag, Ba, Pr and Nd, and diffusing atoms of the element to a surface of the copper alloy so as to form an oxide film on the surface of the copper alloy, wherein a concentration of the element in the copper alloy is more than 0.1 and not more than 20 atomic percentage and within a solubility limit of the element in the copper.Type: GrantFiled: August 24, 2012Date of Patent: March 25, 2014Assignee: Altiam Services Ltd. LLCInventor: Junichi Koike