Nonrectangular (odd) Shaped Pixels Patents (Class 349/146)
  • Patent number: 10451930
    Abstract: The present disclosure relates to a liquid crystal display panel and a display device. The liquid crystal display panel includes a display area; and a non-display area surrounding the display area, wherein the display area includes a plurality of sub-areas, each of the plurality of sub-areas is provided with a plurality of pixel electrodes, all of the pixel electrodes in a sub-area have an identical brightness control parameter; and the brightness control parameter of the pixel electrodes in at least one sub-area is different from the brightness control parameter of the pixel electrodes in another sub-area. By setting different brightness control parameters based on different temperature rise in the sub-areas, the problem of poor Gamma uniformity of the display panel can be solved, and the possibility of occurrence of ghost can be reduced, thereby increasing display quality of the liquid crystal display panel.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: October 22, 2019
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Ankai Ling, Yanping Yu, Boping Shen
  • Patent number: 10423036
    Abstract: A display device according to an exemplary embodiment includes: a substrate; a thin film transistor; a pixel electrode; a common electrode; an insulation layer disposed between the pixel electrode and the common electrode; a roof layer spaced apart from the pixel electrode with a plurality of microcavities disposed therebetween; and a liquid crystal layer disposed in the microcavities; wherein the pixel electrode includes n branch electrodes that extend parallel with each other, a first connection electrode that connects a first end of a first branch electrode and a first end of a second branch electrode, and a second connection electrode that connects second ends of the n branch electrodes, where the n branch electrodes each has a shape that is bent at least once on a plan view, and the first branch electrode includes a first sub-branch electrode and a second sub-branch that are spaced apart from each other.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Soo Bae, Jung Woo Park, Jung Suk Bang, Min Jeong Oh, Hae Ju Yun
  • Patent number: 10409118
    Abstract: An electronic device may have a housing and a display in the housing. The display may have one or more curved edges such as curved edges associated with rounded corners in the display and housing. The display may have an array of pixels. The display may include full-strength pixels and may have a band of antialiasing pixels having selectively reduced strengths to visually smooth content displayed along the curved edges. The pixels may be organic light-emitting diode pixels, liquid crystal display pixels, or other display pixels. Organic light-emitting diode pixels may have drive transistors and associated organic light-emitting diodes. Selectively elevated series or opaque light blocking structures of selectively reduced areas may be used to selectively reduce the strength of the antialiasing pixels. Liquid crystal display pixels may include electrodes of different shapes and/or opaque layer openings of different sizes to form antialiasing pixels in desired patterns.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 10, 2019
    Assignee: Apple Inc.
    Inventors: Pei-En Chang, Szu-Hsien Lee, Hsin-Ying Chiu, Chun-Yao Huang, Kyung Wook Kim, Shih Chang Chang, Hossein Nemati
  • Patent number: 10347693
    Abstract: A pixel arrangement structure of an OLED display is provided. The pixel arrangement structure includes: a first pixel having a center coinciding with a center of a virtual square; a second pixel separated from the first pixel and having a center at a first vertex of the virtual square; and a third pixel separated from the first pixel and the second pixel, and having a center at a second vertex neighboring the first vertex of the virtual square.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: July 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Shin Lee
  • Patent number: 10247989
    Abstract: A TFT array substrate, a liquid crystal display panel and a liquid crystal display device. The TFT array substrate includes: a plurality of pixel units; where each of the pixel units includes a first electrode comprising a V-shaped electrode with an angle; the plurality of pixel units include a first pixel unit and a second pixel unit, and where, the first pixel unit is closer to an edge of the TFT array substrate than the second pixel unit, and an angle of the V-shaped electrode in the first pixel unit is smaller than an angle of the V-shaped electrode in the second pixel unit.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 2, 2019
    Assignees: Shanghai Tianma Micro-Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhipeng Liu, Xianxiang Zhang, Shaofa Lan
  • Patent number: 10222658
    Abstract: An array substrate, a display panel and a display device. The array substrate includes: a plurality of pixel units; an alignment layer covering the pixel units and having an alignment direction parallel to a plane of the array substrate; and a first electrode and a second electrode both disposed within each of the pixel units; where, the first electrode has at least one branch electrode, the branch electrode has a median electrode and an end electrode disposed at at least one end of the median electrode, an angle formed between the end electrode and the alignment direction is different from that formed between the median electrode and the alignment direction, and the angle formed between the end electrode and the alignment direction is larger than or equal to 30° and smaller than or equal to 40°.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: March 5, 2019
    Assignees: Xiamen Tianma Micro-Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Long Zhang, Ting Zhou, Qiong Song, Poping Shen, Chang-ho Tseng
  • Patent number: 10209413
    Abstract: A color filter substrate, a display panel and a display device are provided. The color filter substrate includes a plurality of edge pixels. Each edge pixel includes a plurality of subpixels. Each subpixel is divided by the border line into a display portion at the display region and a non-display portion beyond the display region. The non-display portion is covered with a light-shielding layer. The plurality of subpixels includes a standard subpixel and a plurality of to-be-adjusted subpixels. For each to-be-adjusted subpixel, an additional light-shielding layer is provided at the display portion of the to-be-adjusted subpixel, or the light-shielding layer covering the non-display portion of the to-be-adjusted subpixel is provided with at least one aperture.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: February 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ruiyong Wang, Dan Wang, Yun Qiu, Xiao Sun, Jiuxia Yang, Bing Bai, Xuebo Zhang
  • Patent number: 9952466
    Abstract: A liquid crystal display includes a display substrate, in which a plurality of domains is defined, includes a pixel electrode disposed in each of the plurality of domains and configured to have a plurality of branch electrodes and a common electrode. A liquid crystal layer disposed between the display substrate and an opposite substrate. A plurality of domains is arranged in a column direction and a row direction. Each of the domains includes first and second sides, a first horizontal edge, and a second horizontal edge facing the first horizontal edge. The second side is parallel with the column direction and the first side is parallel with a first slanted direction. A slit is defined between adjacent branch electrodes. The slit has a first width adjacent to the first horizontal edge, and a second width adjacent to the second horizontal edge.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeongho Lee, Hyangyul Kim, Soojung Chae, Junho Song, Jeanho Song, Sujin Lee, Jieun Lee
  • Patent number: 9825112
    Abstract: The present disclosure discloses an array substrate, display panel and display device. The array substrate comprises: a base substrate, and peripheral routes and a plurality of pixel structures located on the base substrate. The orthographic projection of at least one pixel structure on the base substrate has an overlapping region with the periphery region in which the peripheral routes reside. The film layer where the peripheral routes reside is located between the film layer where the pixel structures reside and the base substrate or located at a side of the film layer. The array substrate allows the display region to be enlarged to cover a part or all of the periphery region where the peripheral routes reside. This can narrow down the bazel width of the display panel and even make it bezel-less.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 21, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiangxiang Zou
  • Patent number: 9740059
    Abstract: An array substrate and a display panel are provided. The array substrate includes a non-display region and a display region including a plurality of pixel unit rows arranged in a first direction and extended in a second direction. Each pixel unit row includes at least one first-pixel unit having a first width in the first direction and a second width in the second direction. At least one pixel unit row includes at least one second-pixel unit having a third width in the first direction and a fourth width in the second direction, and the at least one second-pixel unit is disposed at one end or both ends of the pixel unit row. The second width is larger than or equal to the fourth width.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: August 22, 2017
    Assignees: SHANGHAI AVIC OPTO ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Weiwei Zhang, Jun Li, Meilin Wang
  • Patent number: 9720284
    Abstract: A liquid crystal display and a method for fabricating the same, an electronic apparatus are provided. The liquid crystal display includes: a first substrate and a second substrate disposed opposite to the first substrate; and multiple pixel units disposed between the first and the substrates, where each of the pixel units includes multiple sub-pixels with different colors; where each of the sub-pixels includes a liquid crystal layer disposed between the first and second substrates, a first alignment film disposed between the first substrate and the liquid crystal layer and a second alignment film disposed between the second substrate and the liquid crystal layer; where at least two sub-pixels in a pixel unit have different alignment directions relative to the first alignment film; and an alignment direction of a sub-pixel relative to the first alignment film is parallel to an alignment direction of this sub-pixel relative to the second alignment film.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: August 1, 2017
    Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jing Li, Ting Zhou, Poping Shen
  • Patent number: 9653033
    Abstract: In an IPS mode liquid crystal display device, measures are taken against dark unevenness at the corner portion of a screen. The problem can be solved by a liquid crystal display device in which a comb tooth pixel electrode is formed on a common electrode formed in a flat surface through an interlayer insulating film; a TFT substrate is formed with a dummy pixel region and a display region surrounding the display region; a pixel on the display region is formed with a comb tooth display region pixel electrode bent in a projection in the first direction; and a pixel on the dummy pixel region is formed with a comb tooth dummy pixel region pixel electrode bent in a projection in a direction opposite to the first direction at an angle of 180 degrees.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 16, 2017
    Assignee: Japan Display Inc.
    Inventors: Masahiro Kobayashi, Masateru Morimoto, Takeshi Sato
  • Patent number: 9146424
    Abstract: Screen brightness is improved in an IPS type liquid crystal display device. A common electrode having a slit is disposed over a rectangular pixel electrode with an insulating film attached therebetween. The slit has a linear part and a bend part. The bend part is necessary for preventing pressing domain. The transmittance in the bend part is increased by making the thickness of the insulating film below the bend part of the slit to less than the thickness of the insulating film at the linear part of the slit, thereby increasing the transmittance of the entire pixel. Thus, the screen brightness can be improved.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: September 29, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Hideki Kuriyama, Hirotaka Imayama
  • Patent number: 9122111
    Abstract: In one embodiment, a first substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, a pixel electrode including a main pixel electrode extending in the second direction, and a first alignment film covering the pixel electrode. A second substrate includes a common electrode having a pair of main common electrodes arranged on both sides sandwiching the main pixel electrode and a second alignment film covering the common electrode. A liquid crystal layer is held between the first alignment film and the second alignment film and includes liquid crystal molecules. The liquid crystal layer is formed of materials having negative dielectric constant anisotropy, and the liquid crystal molecules are initially aligned substantially in parallel with the first direction when electric field is not impressed between the pixel electrode and the common electrode.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: September 1, 2015
    Assignee: Japan Display Inc.
    Inventors: Hitomi Hasegawa, Nobuko Fukuoka
  • Patent number: 9117711
    Abstract: A solid-state image sensor includes pixel units each having a group of pixels forming a polygonal outer shape to cover an entire light receiving plane. The polygonal outer shape has at least six equilateral sides and the group of pixels includes pixels receiving light of at least four different colors.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: August 25, 2015
    Assignee: Sony Corporation
    Inventors: Tsuyoshi Suzuki, Shinichiro Saito
  • Patent number: 9025123
    Abstract: A liquid crystal display device includes a plurality of pixels arranged in a matrix, each pixel having: first and second substrates; a first electrode formed on an opposing face of the first substrate opposing the second substrate; a first alignment film covering the first electrode and the opposing face of the first substrate; a second electrode formed on the opposing face of the second substrate opposing the first substrate; a second alignment film covering the second electrode and the opposing face of the second substrate, and a liquid crystal layer which is provided between the first alignment film and the second alignment film and includes liquid crystal molecules, where a pretilt is imparted on the liquid crystal molecules, a plurality of uneven portions is formed on the first electrode, and a width of a portion of the convex portions provided on the first electrode becomes narrower toward the tip portion.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: May 5, 2015
    Assignee: Sony Corporation
    Inventors: Chikashi Kobayashi, Shunichi Suwa, Masashi Miyakawa
  • Patent number: 9019457
    Abstract: A liquid crystal display element comprises a first and a second substrates, a vertical alignment liquid crystal layer, and a first and a second polarizers arranged to cross approximately their absorption axes and an alignment direction of liquid crystal molecules when no voltage is applied at almost 45 degrees. At least one of the electrodes comprises a polyline extending to an extending direction as a whole and having no straight line in parallel to the extending direction along an electrode edge, and the polyline is formed along an edge of at least one of the first and the second electrodes where the alignment directions when a voltage is applied and when no voltage is applied are opposite to each other if the polyline is a straight line along the extending direction.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 28, 2015
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hiroto Fukushima, Yoshihisa Iwamoto
  • Patent number: 9013665
    Abstract: Provided are a display device and a manufacturing method thereof capable of preventing aggregation of an alignment layer and maintaining uniformly a cell-gap. The display device according to an exemplary embodiment of the invention includes: a substrate including a plurality of pixel areas; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor and formed in the pixel area; a barrier layer formed on the pixel electrode; a roof layer formed on the barrier layer to be spaced apart from the barrier layer with a microcavity therebetween; and a liquid crystal formed to fill the microcavity.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Kyung Yim, Je Hyeong Park, O Sung Seo, Hyoung Cheol Lee
  • Patent number: 9013664
    Abstract: A liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal mixture is provided. The first substrate includes a first base and a first electrode layer. The first base has a plurality of sub pixels each having at least one first asymmetric protrusion. The first electrode layer is disposed on the first asymmetric protrusion. The second substrate is assembled to the first substrate. The liquid crystal mixture is disposed between the first asymmetric protrusion and the second substrate.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: April 21, 2015
    Assignee: Innolux Corporation
    Inventors: Yu-Wei Chen, Chien-Hung Chen
  • Patent number: 8988642
    Abstract: A liquid crystal display device includes: a first substrate; a first electrode on a first face of the first substrate; a second substrate opposed to the first substrate; a second electrode on a first face of the second substrate, the second electrode corresponding to the first electrode; and a liquid crystal structure between the first substrate and the second substrate, the liquid crystal structure including liquid crystal capsules.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Jae-Hyun Kim, Jong-in Baek, Yong-Seok Yeo, Gee-Bum Kim, Won-Sang Park
  • Patent number: 8982309
    Abstract: A liquid crystal display device includes a substrate, a thin film transistor disposed on the substrate, a plurality of color filters disposed on the substrate, a light blocking member disposed between the plurality of color filters and on the thin film transistor, and a pixel electrode disposed on at least one of the plurality of color filters. The pixel electrode comprises a planar shape electrode and a plurality of minute branches extending from the planar shape electrode. The at least one of the plurality of color filters or the light blocking member comprises a step forming portion overlapped by the planar shape electrode.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Soo Jang, Hak-Sun Chang, Jang Wi Ryu, Ki Chul Shin
  • Patent number: 8964158
    Abstract: A liquid crystal (LC) display device includes a first substrate having a pixel unit and a second substrate. The pixel unit has a pixel electrode unit including a primary electrode region. A LC layer with chiral dopants is disposed between the first and second substrates. The pixel unit has a first boundary along a horizontal direction of an upper portion of the pixel unit. The first boundary has a first central point. The primary electrode region has a first side along the horizontal direction of an upper portion of the primary electrode region. The first side has a second central point left to the first central point. The primary electrode region has a second side located on the left to the second central point, and a first angle between the first and second sides is larger than 90 degrees or equal to 90 degrees.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 24, 2015
    Assignee: Innolux Corporation
    Inventors: Ming-Hung Chen, Ying-Jen Chen, Chih-Yung Hsieh
  • Patent number: 8958044
    Abstract: A non-rectangular pixel array includes non-rectangular pixels. A first conductor line group including first conductor lines and a second conductor line group including second conductor lines are arranged to intersect. Each non-rectangular pixel is arranged to be partially surrounded by one of the first conductor lines and one of second conductor lines. Each first conductor lines includes a first line and a second line which are arranged in parallel and in proximity to each other, without non-rectangular pixel existing between the first line and the second line within each first conductor line, and with non-rectangular pixels existing between adjacent the first conductor lines. Non-rectangular pixels include first pixels and second pixels. Each first pixel is arranged to be partially surrounded by the first line and the second conductor line, and each second pixel is arranged to be partially surrounded by the second line and the second conductor line.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: February 17, 2015
    Assignee: NLT Technologies, Ltd.
    Inventor: Kenichi Takatori
  • Patent number: 8958043
    Abstract: The present invention discloses a 3D liquid crystal display device and a pixel structure thereof. The pixel structure includes three gate lines, a data line and three pixel electrodes. The gate lines are arranged along a first direction and cross the data line to define three sub-pixel regions. Each of the pixel electrodes includes a primary electrode portion and an extension electrode portion. The primary electrode portion of each of the pixel electrodes is disposed in the corresponding sub-pixel region, and the extension electrode portions of all the pixel electrodes are disposed together in one of the sub-pixel regions. The pixel structure can improve a color washout problem of the 3D liquid crystal display device under top or bottom view angles.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: February 17, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chia-Yu Lee
  • Patent number: 8953134
    Abstract: A liquid crystal display panel is provided and includes a pair of substrates facing each other with a liquid crystal layer therebetween. One of the substrates having, thereon, an upper electrode having a plurality of slits formed therein, a lower electrode facing the upper electrode with an insulating film therebetween and disposed so as to be adjacent to the substrate, and an alignment film formed so as to cover surfaces of the upper electrode and the insulating film. Each of the slits includes a linear portion disposed so as to be parallel to a liquid crystal alignment direction when no voltage is applied and two extension portions extending from both ends of the linear portion so that a distance between the two extension portions increases in a direction perpendicular to the linear portion while keeping a symmetrical shape with respect to the direction.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Shinichiro Nomura, Kimitaka Kamijo, Tae Nakahara
  • Patent number: 8953130
    Abstract: According to one embodiment, a liquid crystal display device includes an insulation film disposed over a gate line, a storage capacitance line, a source line, and first main common electrodes disposed on the insulation film. The first main common electrodes include a discontinuous part in at least one of a first intersection part at an intersection between the storage capacitance line and the first source line and a second intersection part at an intersection between the storage capacitance line and the second source line. The liquid crystal display device also includes a main pixel electrode and a sub-pixel electrode which are disposed on the insulation film.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: February 10, 2015
    Assignee: Japan Display Inc.
    Inventor: Masato Nakamura
  • Patent number: 8947626
    Abstract: A liquid crystal display includes: first and second substrates placed opposite each other; first and second electrodes each provided on one face of the first and second electrodes extending in first and second directions intersecting with each other; and a liquid crystal layer provided between the one face of the first substrate and the one face of the second substrate. A pixel is formed in a region where the first and second electrodes intersect, and a pixel edge of the pixel has a line segment which is oblique relative to the first direction. The first and second substrates are respectively subject to alignment treatment, and the liquid crystal layer is a substantial vertical alignment having a twisted structure, and an alignment direction of liquid crystal molecules at a substantial center in a layer thickness direction and the oblique line segment are not orthogonal.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: February 3, 2015
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Yoshihisa Iwamoto
  • Publication number: 20150009467
    Abstract: An auxiliary capacitance line with a branch portion extends in a row direction. A switching element is arranged in a circumference in which a source line crosses a gate line. Pixel electrodes adjoining each other in a column direction are electrically connected with adjoining different source lines through a switching element. The switching element includes a drain line arranged under the source line and extending to a region under the auxiliary capacitance line. The branch portion of the auxiliary capacitance line extends along the source line between the source line and the drain line. The pixel electrode electrically connected to one of the adjacent source lines in the row direction is arranged closer to the other source line than one of the source line. Source signals with opposite polarity each other are supplied to the first and second source lines, respectively.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 8, 2015
    Applicant: Japan Display Inc.
    Inventors: Kazuya DAISHI, Masato Nakamura
  • Patent number: 8928844
    Abstract: The present invention discloses a pixel unit and has: a gate line; a source line; a drain line; an active element electrically connected to the gate line, the source line and the drain line; a pixel electrode including a main trunk and multiple stripped electrodes, and the main trunk is electrically connected to the drain line, the main trunk has a first predetermined angle with respect to a first polarization axis or a second polarization axis, and the main trunk at least has two segments, an end of each of the strip electrodes is connected to the main trunk and each of the strip electrodes has a second predetermined angle with respect to the main trunk. The present invention further discloses a liquid crystal display panel.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: January 6, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chihtsung Kang
  • Patent number: 8922739
    Abstract: A liquid crystal display includes an upper substrate, a lower substrate, a liquid crystal layer disposed between the upper and lower substrates and including liquid crystal molecules with optical isotropicity, a first polarizer disposed on a surface of the upper substrate, having a first polarization direction, a second polarizer disposed on a surface of the lower substrate, having a second polarization direction, and at least one pixel region defined on the lower substrate. The pixel region includes at least one pixel electrode disposed on the lower substrate, the pixel electrode extending along a first direction in the pixel region and a majority portion of an edge of the pixel electrode substantially being parallel to at least one of the first polarization direction and the second polarization direction.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 30, 2014
    Assignees: AU Optronics Corp., University of Central Florida Research Foundation Inc.
    Inventors: Yi-Fen Lan, Cheng-Yeh Tsai, Shin-Tson Wu, Yi-Fan Liu
  • Patent number: 8912532
    Abstract: The invention relates to a top-emissive organic light-emitting diode (OLED) (10) arranged to emit light having different emission colors, comprising a multi-layered structure provided with a first electrode, a second electrode and a functional layer enabling light emission disposed between the first electrode and the second electrode, wherein thickness (H1, H2) of the functional layer is modulated by allowing at least a portion of the functional layer to interact with a thickness modulator (5a, 5b, 5c), wherein the functional layer comprises a hole injection layer or the electron injection layer.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: December 16, 2014
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Dorothee Christine Hermes, Joanne Sarah Wilson, Petrus Alexander Rensing
  • Patent number: 8896795
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a first gate line and a second gate line respectively extending in a first direction. A main pixel electrode is arranged between the first gate line and the second gate line and extending in a second direction orthogonally crossing the first direction. A pair of sub-common electrodes respectively faces the first gate line and the second gate line through an insulating layer and extends in the first direction. The second substrate includes a main common electrode electrically connected with the sub-common electrode and arranged on both sides sandwiching the main pixel electrode. A liquid crystal layer is held between the first substrate and the second substrate.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: November 25, 2014
    Assignee: Japan Display Inc.
    Inventors: Hirofumi Funakoshi, Jin Hirosawa
  • Patent number: 8885132
    Abstract: In one embodiment, a liquid crystal display device comprises a pixel electrode including a first main electrode disposed between a first line and a second line and extending like a belt in a first extending direction. A first counter electrode includes a second main electrode extending like a belt in the first extending direction, a second counter electrode having a third main electrode extending like a belt in the first extending direction. The second and third main electrodes are disposed on both sides of the first main electrode, and an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the first end side of the first main electrode and the second line, and through an interstice between the second end side of the first main electrode and the first line.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: November 11, 2014
    Assignee: Japan Display Inc.
    Inventors: Yusuke Morita, Jin Hirosawa, Arihiro Takeda, Nobuko Fukuoka, Keiji Tago, Kazuya Daishi
  • Patent number: 8879037
    Abstract: According to one embodiment, a liquid crystal display device includes a main pixel electrode having a first width in a first direction and a first edge extending in a second direction, and a sub-pixel electrode. The sub-pixel electrode has a second width, which is greater than the first width in the first direction, has a third width, which is a maximum width in the first direction at a central portion of the sub-pixel electrode, has a fourth width in the second direction at a position with a first distance from the first edge in the first direction, and has a fifth width, which is less than the fourth width at a position with a second distance, which is greater than the first distance, from the first edge in the first direction.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: November 4, 2014
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 8867008
    Abstract: A blue phase liquid crystal display device includes a first substrate having a first pixel region, a first gate line on the first substrate, first and second data lines on the first substrate, a first thin film transistor (TFT) and a second TFT disposed in the first pixel region, the first TFT connected to the first gate line and the first data line, and the second TFT connected to the first gate line and the second data line, a first pixel electrode in the first pixel region and connected to the first TFT, and a second pixel electrode in the first pixel region and connected to the second TFT, a second substrate facing the first substrate, and a liquid crystal layer between the first and second substrates, the liquid crystal layer having an optical isotropic property without an electric field and a birefringence property with the electric field.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: October 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Wook Lee, Hyun-Jin Park, Eun-Jung Lim, Dong-Kyu Yoon
  • Patent number: 8867007
    Abstract: A liquid crystal display device includes an array substrate including a pixel electrode which is disposed in each of pixels, a counter-substrate which is disposed to be opposed to the array substrate and includes a counter-electrode which is common to a plurality of the pixels, and a liquid crystal layer which is held between the array substrate and the counter-substrate. The pixel electrode includes a first major electrode portion having a strip shape, and the counter-electrode includes second major electrode portions each having a strip shape, the second major electrode portions being disposed in parallel to the first major electrode portion in a manner that the first major electrode portion is interposed between the second major electrode portions and that the first major electrode portion and the second major electrode portions are alternately arranged.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 21, 2014
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 8854560
    Abstract: An auto-stereoscopic display device is proposed. The auto-stereoscopic display device includes a display panel and a liquid crystal lens. The liquid crystal lens includes a first electrode layer and a second electrode layer. The first electrode layer includes a plurality of first electrode stripes arranged in parallel along pixel units and extending in a first or second direction. The second electrode layer includes a plurality of second electrode stripes extending slantingly relative to the plurality of first electrode stripes and being arranged in parallel. A liquid crystal lens and a driving method thereof are also proposed. Based on the present invention, a first lenticular lens unit is generated and arranged along the plurality of second electrode stripes for the 3D display mode, and a second lenticular lens unit is generated and arranged along the plurality of first electrode stripes for the 2D display mode.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 7, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chih-Wen Chen, Chia-chiang Hsiao
  • Patent number: 8842250
    Abstract: A liquid crystal display device includes a first and a second substrate placed opposite each other, a first electrode provided on the first substrate extending in a first direction, a second electrode provided on the second substrate extending in a second direction that is orthogonal to the first direction, and a vertically-aligned liquid crystal layer provided between the two substrates. A pixel is defined where the two electrodes intersect, and alignment treatment is performed to the first or second substrate in a direction parallel to the first direction. The first electrode has a linear shape in which electrode edges on either side extend in the first direction, and the second electrode is of a polygonal line shape in which an electrode edge of one side includes a line segment which obliquely crosses the first direction, and the pixel is demarcated by pixel edges including obliquely crossing line segments.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 23, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yoshihisa Iwamoto, Kunihiko Katano, Hiroto Fukushima
  • Patent number: 8836875
    Abstract: A liquid crystal display device includes a liquid crystal panel which displays a left eye image and a right eye image; and a light-shielding barrier which has a slit section and a light-shielding section to cause binocular parallax, wherein the liquid crystal panel includes a first substrate which has a pixel electrode formed thereon, a second substrate which is separated from and opposed to the surface of the first substrate which has the pixel electrode formed thereon, and a liquid crystal layer which is disposed between the first substrate and the second substrate, the pixel electrode has a plurality of strip-shaped parts which are arranged with intervals therebetween, and an extending direction of the strip-shaped parts is substantially perpendicular to an opening direction of the slit section.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: September 16, 2014
    Assignee: Japan Display West Inc.
    Inventors: Tsuyoshi Ohyama, Yingbao Yang, Takeo Koito
  • Patent number: 8823912
    Abstract: 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: Grant
    Filed: September 14, 2012
    Date of Patent: September 2, 2014
    Assignee: 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
  • Patent number: 8804083
    Abstract: 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: Grant
    Filed: August 23, 2012
    Date of Patent: August 12, 2014
    Assignee: 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
  • Patent number: 8804085
    Abstract: A liquid crystal display includes: a first substrate; and a pixel electrode disposed on the first substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. The first sub-pixel electrode and the second sub-pixel electrode include a cross stem, and a plurality of minute branches extending from the cross stem. The second sub-pixel electrode includes two cross stems disposed adjacent in a column direction, and a center transverse stem disposed between the two cross stems. The center transverse stem includes a cutout.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong Woon Lim
  • Patent number: 8786812
    Abstract: A liquid crystal lens is provided on a liquid crystal display panel. Electrodes extending vertically to a plane of drawing are provided on an upper substrate of the liquid crystal lens at predetermined intervals. No electrodes are provided on a lower substrate. An initial alignment of liquid crystal molecules in the liquid crystal lens is vertically directed with respect to the plane of the drawing. A voltage applied to the upper substrate electrodes generates a transverse electric field to rotate the liquid crystal molecules. Polarization light emitted from the liquid crystal display panel is vertically directed to the plane of the drawing, which generates a refractive index distribution of the polarization light in a liquid crystal layer to form a convex lens within the liquid crystal lens. This lens allows first and second pixels to be recognized by right and left eyes to allow a three-dimensional display.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 22, 2014
    Assignee: Japan Display Inc.
    Inventors: Toshio Miyazawa, Terunori Saitou
  • Patent number: 8773629
    Abstract: According to one embodiment, a liquid crystal optical apparatus includes a first substrate unit, a second substrate unit, and a liquid crystal layer. The first substrate unit includes a first substrate and a plurality of first electrodes. The first electrodes are provided on the first substrate to extend in a first direction. Each of the first electrodes has a first side surface and a second side surface opposite to the first side surface. The second substrate unit includes a second substrate and an opposing electrode. The second substrate opposes the first substrate. The opposing electrode is provided on the second substrate to oppose the first electrodes. The liquid crystal layer is provided between the first substrate unit and the second substrate unit. The first side surface has a first protruding portion and a first recessed portion arranged with the first protruding portion in the first direction.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 8, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinichi Uehara, Masako Kashiwagi, Ayako Takagi, Masahiro Baba, Yuko Kizu, Yoshiharu Momonoi
  • Patent number: 8767160
    Abstract: An MVA type liquid crystal display panel of the present invention comprises a first substrate where a light transmission section consisting of a pixel electrode 15a, whose corner portions are chamfered, is formed at each position partitioned by scanning lines 13 and signal lines 14 that are arranged in a matrix state, in which a protruding electrode 40 extending from the pixel electrode 15a is formed between the chamfered position of the corner portion and the scanning line 13 to prevent the inclination of liquid crystal molecules due to the effect of the potential difference occurring between the scanning line and a common electrode.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: July 1, 2014
    Assignee: Japan Display West Inc.
    Inventor: Shinichiro Tanaka
  • Patent number: 8760761
    Abstract: A translucent liquid crystal display panel (2) includes pixel pairs as display units each formed by a left-eye pixel (4L) and a right-eye pixel (4R) and arranged in a matrix shape. A through hole (4Ld) arranged in a color layer (4Lc) of a color filter has a slit shape whose longitudinal direction is identical to the orientation direction of a cylindrical lens (3a) constituting a lenticular lens (3). Similarly, a through hole (4Rd) arranged in a color layer (4Rc) of a color filter has a slit shape whose longitudinal direction is identical to the orientation direction of the cylindrical lens (3a) constituting the lenticular lens (3). This suppresses the phenomenon that a hue is changed by a field-of-view angle and/or an external light condition on the translucent display panel capable of displaying an image directed to a plurality of viewpoints.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: June 24, 2014
    Assignee: NLT Technologies, Ltd.
    Inventor: Shin-ichi Uehara
  • Patent number: 8755115
    Abstract: A 3D image projection system has a display screen having an array of pixels, an array of pixel pyramids associated with the array of pixels, and a projector configured to project light onto the display screen.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: June 17, 2014
    Assignee: Thomson Licensing
    Inventor: Youngshik Yoon
  • Patent number: 8749727
    Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: June 10, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
  • Patent number: 8743332
    Abstract: In one embodiment, a first substrate includes a pixel electrode having a first main electrode in a belt-like shape extending along a first cross line direction which crosses at an acute angle in a counterclockwise direction with respect to an initial alignment direction of liquid crystal molecules, and a second main electrode in the belt-like shape extending along a second cross line direction which crosses at an acute angle in a clockwise direction with respect to the initial alignment direction of the liquid crystal molecules. A second substrate includes a counter electrode having a pair of third main electrodes in the belt-like shape arranged above a pair of regions sandwiching the first main electrode extending along a first cross line direction and a pair of fourth main electrodes in the belt-like shape arranged above a pair of regions sandwiching the second main electrode extending along the second cross line direction.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: June 3, 2014
    Assignee: Japan Display Inc.
    Inventors: Keisuke Takano, Arihiro Takeda, Takashi Sasabayashi, Nobuko Fukuoka, Yusuke Morita, Jin Hirosawa, Hitomi Hasegawa, Yoshitaka Yamada, Keiji Tago, Hirokazu Morimoto
  • Patent number: 8743305
    Abstract: A liquid crystal display device in which lengths (d1 and1 d2) of respective picture element electrodes (60) in an extended direction of scanning signal lines (32) are longer than lengths (d3) of the respective picture element electrodes (60) in an extended direction of video signal lines (35) is arranged such that storage capacitor lines (36) are provided along the respective scanning signal lines (32) so as to overlap the respective picture element electrodes (60) via an insulating film (70) in plan view.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: June 3, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Yoshida, Satoshi Horiuchi, Masakatsu Tominaga, Junichi Morinaga, Ryohki Itoh, Katsushige Asada, Hironobu Sawada, Hitoshi Matsumoto