Split Pixels Patents (Class 349/144)
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Patent number: 9013665Abstract: 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: GrantFiled: May 9, 2013Date of Patent: April 21, 2015Assignee: Samsung Display Co., Ltd.Inventors: Tae Kyung Yim, Je Hyeong Park, O Sung Seo, Hyoung Cheol Lee
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Publication number: 20150098047Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a pixel electrode on the first substrate, a common electrode on the second substrate, and a liquid crystal layer between the first substrate and the second substrate, wherein the common electrode includes a first cutout portion, and the pixel electrode includes a first sub-pixel electrode, a second sub-pixel electrode surrounding the first sub-pixel electrode, a second cutout portion adjacent to at least one of edges of the second sub-pixel electrode and disposed along the edges, and a third cutout portion isolating the first sub-pixel electrode from the second sub-pixel electrode, and the first sub-pixel electrode and the second sub-pixel electrode are located at different heights.Type: ApplicationFiled: March 12, 2014Publication date: April 9, 2015Applicant: Samsung Display Co., Ltd.Inventors: Dong-Chul SHIN, Jae-Hong Park, Ki-Chul Shin, Hyeok-Jin Lee
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Publication number: 20150092138Abstract: A liquid crystal display includes a display substrate, an opposite substrate, a liquid crystal layer, a main spacer, and a sub-spacer. The display substrate includes a plurality of pixel areas and a light blocking area, and at least one thin film transistor is disposed in the light blocking area. The opposite substrate is coupled to the display substrate. The liquid crystal layer is disposed between the display substrate and the opposite substrate. The main spacer is disposed on the display substrate, includes a light blocking material, and makes contact with the opposite substrate to maintain a cell gap between the display substrate and the opposite substrate. The sub-spacer is disposed on the display substrate, includes the light blocking material, and is spaced apart from the opposite substrate. The sub-spacer has a size corresponding to the light blocking area, and the main spacer is protruded from the sub-spacer.Type: ApplicationFiled: April 8, 2014Publication date: April 2, 2015Applicant: Samsung Display Co., Ltd.Inventors: Chang Hun KWAK, YiSeop SHIM, Nuree UM, Chul HUH
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Publication number: 20150077693Abstract: 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: November 21, 2014Publication date: March 19, 2015Inventors: Chien-Hung CHEN, Ching-Che YANG
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Publication number: 20150070613Abstract: An array substrate and a liquid crystal panel are disclosed. Each of the pixel cells of the array substrate includes a voltage compensation circuit. When the scanning signals are inputted to the corresponding first scanning line of a farther pixel cell, the voltage compensation circuit of a current pixel cell operates on the second pixel electrode of the current pixel cell. As such, a ratio of a voltage difference between the second pixel electrode and the common electrode to the voltage difference between the first pixel electrode and the common electrode when the positive polarity is inversed is the same with the ratio when the negative polarity is inversed. In this way, the low color shift effect is enhanced.Type: ApplicationFiled: October 24, 2013Publication date: March 12, 2015Inventor: Chengcai Dong
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Publication number: 20150055065Abstract: A liquid crystal display includes a first substrate, a second substrate disposed opposite to the first substrate; a pixel electrode disposed on the first substrate; a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate, where a first cutout having a cross shape is defined in the common electrode, a second cutout is defined in the pixel electrode to be adjacent to and along an edge of the pixel electrode, and the pixel electrode has a step structure, a boundary line of which is in a rhombus shape.Type: ApplicationFiled: January 17, 2014Publication date: February 26, 2015Applicant: Samsung Display Co., Ltd.Inventors: Dong-Chul SHIN, Jae Hong PARK, Oh Jeong KWON, Ki Chul SHIN, Sung-Jae YUN, Hyeok Jin LEE
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Patent number: 8958043Abstract: 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: GrantFiled: August 8, 2012Date of Patent: February 17, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chia-Yu Lee
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Patent number: 8958041Abstract: A display apparatus includes a gate line, a data line crossing the gate line and a pixel area. A common electrode and a pixel electrode are overlapped with each other and formed in the pixel area. The common electrode and the pixel electrode receive different voltages. The data line includes a first data line through which a voltage is applied to the common electrode and a second data line through which a voltage is applied to the pixel electrode. The first data line crosses the pixel area to minimize an area where the first data line is formed, thereby improving an aperture ratio of the display apparatus.Type: GrantFiled: February 12, 2008Date of Patent: February 17, 2015Assignee: Samsung Display Co., Ltd.Inventors: Yong-Han Park, Yong-Gi Park, Seok-Je Seong, Min-Kyung Jung
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Publication number: 20150042939Abstract: A liquid crystal display includes: a thin film transistor array panel; a counter panel opposite to the thin film transistor array panel; a liquid crystal layer between the thin film transistor array panel and the counter panel; and pixel electrodes in the thin film transistor array panel, where each of the pixel electrodes includes a first sub-pixel electrode and a second sub-pixel electrode, where each of the first and second sub-pixel electrodes is divided into sub-regions by domain dividers, which controls pretilt angles of liquid crystal molecules of the liquid crystal layer, vertically adjacent pixel electrodes includes an upper pixel electrode and a lower pixel electrode, and the pretilt angles of the liquid crystal molecules in two bottom sub-regions of the second sub-pixel electrode of the upper pixel electrode and in two top sub-regions of the first sub-pixel electrode of the lower pixel electrode are opposite to each other.Type: ApplicationFiled: January 9, 2014Publication date: February 12, 2015Applicant: Samsung Display Co., Ltd.Inventors: Kee-Bum PARK, Kyung Ho KIM, Ho Kyung KIM, Yoo Mi RA, Dong Hee SHIN
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Publication number: 20150042917Abstract: A liquid crystal display includes: a first subpixel electrode disposed on a first substrate; an insulating layer disposed on the first subpixel electrode; a second subpixel electrode disposed on the insulating layer; and a common electrode disposed on a second substrate, the second substrate facing the first substrate. The first subpixel electrode is overlapped with a portion of the second subpixel electrode, and the first subpixel electrode and the second subpixel electrode are configured to receive substantially the same electric potential.Type: ApplicationFiled: July 8, 2014Publication date: February 12, 2015Inventors: Hoon KIM, Ki Chul Shin, Dan Bi Yang, Ji Phyo Hong
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Patent number: 8953113Abstract: 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: February 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seob Kim, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong
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Publication number: 20150036092Abstract: A liquid crystal display device according to the present invention has a display area that includes a plurality of pixels (Px). The display area is made up of n kinds of domains (where n is an integer that is equal to or greater than two and equal to or smaller than four). The directors of the n kinds of domains define mutually different alignment directions. If the domain structure of each pixel (Px) is defined by the kinds of the domains that form the pixel (Px), the number k of the kinds of the domains that form the pixel (Px), and the arrangement of the domains in the pixel (Px), the display area includes a pixel, of which k is less than n and of which the domain structure is different from the domain structures of adjacent pixels.Type: ApplicationFiled: December 21, 2011Publication date: February 5, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Isamu Miyake, Tomohiko Mori, Iichiroh Inoue
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Publication number: 20150036073Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.Type: ApplicationFiled: May 28, 2014Publication date: February 5, 2015Applicant: Samsung Display Co., Ltd.Inventors: Wan-Soon IM, MinWook PARK, SuWan WOO, Eun-Kil PARK, Jeongman Son, Changil TAE, Kee-Bum PARK, Kyung-Bae KIM, JE HYEONG PARK, JOOHWAN PARK, YU DEOK SEO, Seungho YANG, SEJOON OH, HEEHWAN LEE
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Patent number: 8947605Abstract: An autostereoscopic display in which image data, in the form of grey level information for red, green, and blue components of pixels in multiple images representing multiple perspective views of a scene, are recombined into a second set of images generally consisting of parts of all the original multiple perspective images, arranged within the second set of images in such a way that a 3D image is seen when the second set of images are displayed in sequence.Type: GrantFiled: May 25, 2012Date of Patent: February 3, 2015Assignee: Dimension Technologies, Inc.Inventor: Jesse B. Eichenlaub
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Patent number: 8940560Abstract: The present invention relates to a touching-type electronic paper and method for manufacturing the same. The touching-type electronic paper includes a TFT substrate and a transparent electrode substrate which are disposed as a cell. The transparent electrode substrate includes a common electrode, microcapsule electronic ink and light guiding poles as light transmitting passages, all of which are formed on a first substrate. The TFT substrate comprises displaying electrodes, first TFTs for driving the displaying electrodes, second TFTs for detecting lights transmitting through the light guiding poles and for producing level signals, and third TFTs for reading the level signals and sending the level signals to a back-end processing system, all of which are formed on a second substrate. The light guiding poles are opposite to the second TFTs respectively.Type: GrantFiled: September 24, 2013Date of Patent: January 27, 2015Assignee: Boe Technology Group Co., Ltd.Inventors: Zenghui Sun, Wenjie Hu, Zhuo Zhang, Gang Wang, Xibin Shao
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Patent number: 8941789Abstract: A liquid crystal display apparatus includes a plurality of pixels having first and second subpixels, a plurality of gate lines connected to the first and second subpixels to transmit gate signals, a plurality of first data lines intersecting the gate lines and connected to the first subpixels to transmit first data voltages, and a plurality of second data lines intersecting the gate lines and connected to the second subpixels to transmit second data voltages. The first and second data voltages have different sizes and are obtained from single image information. Each pixel is divided into a pair of subpixels, and different data voltages are applied to the subpixels through two different data lines, so that it is possible to secure a wide viewing angle and improve side visibility.Type: GrantFiled: January 26, 2006Date of Patent: January 27, 2015Assignee: Samsung Display Co., Ltd.Inventors: Young-Hoon Yoo, Hee-Suk Lee, Woo-Sung Sohn
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Patent number: 8941806Abstract: A liquid crystal display includes a gate line, data lines transmitting a first voltage; a transmitting line transmitting a second voltage; and pixels including first and second pixel electrodes. One pixel electrode receives the first voltage through a data line, and the other receives the second voltage through the transmitting line. Branch electrodes of the pixel electrodes alternate, and a stem of the first pixel electrode of a first pixel, faces a stem of the first pixel electrode of a second pixel and a stem of the second pixel electrode of the second pixel, with respect to the data line. Areas of the stem of the first pixel electrode of the second pixel facing the stem of the first pixel electrode of the first pixel, and of the stem of the second pixel electrode of the second pixel facing the stem of the first pixel, are the same.Type: GrantFiled: March 14, 2012Date of Patent: January 27, 2015Assignee: Samsung Display Co., Ltd.Inventors: Kwang-Chul Jung, Se Hyoung Cho
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Publication number: 20150022771Abstract: Each of the pixel electrodes that are disposed in a liquid crystal display panel of one embodiment of the present invention is constituted of minutely patterned electrode regions (a first minutely patterned electrode region and a second minutely patterned electrode region), and one solid electrode region, and the length Lpix of each of the pixel electrodes in a direction along a data line, and the total length LB of the minutely patterned electrode regions satisfies the relationship of LB/Lpix=0.3 to 0.6.Type: ApplicationFiled: March 1, 2013Publication date: January 22, 2015Applicant: Sharp Kabushiki KaishaInventors: Yuki Kawashima, Yasutoshi Tasaka, Keiichi Ina, Yoshimizu Moriya
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Patent number: 8928848Abstract: A pixel structure including a substrate, a scan line, a first data line, a second data line, a first pixel unit and a second pixel unit is provided. 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 and has a plurality of first branches. The first branches outwardly extend from a center of the first pixel unit, and a projection of the first branches are separated from a projection of the adjacent first data line projecting onto the substrate, and the first pixel electrode is apart from the adjacent first data line with a distance. The second pixel unit located between the first data line and the second data line.Type: GrantFiled: July 16, 2014Date of Patent: January 6, 2015Assignee: 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: 8922739Abstract: 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: GrantFiled: December 28, 2012Date of Patent: December 30, 2014Assignees: AU Optronics Corp., University of Central Florida Research Foundation Inc.Inventors: Yi-Fen Lan, Cheng-Yeh Tsai, Shin-Tson Wu, Yi-Fan Liu
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Patent number: 8922743Abstract: Discussed are a liquid crystal display device and a method of fabricating the same in which a single common line is formed at the center of a substrate, which results in an enhanced aperture ratio and transmittance. The liquid crystal display device includes a single common line located at a center of a substrate; a first group of unit pixels located in a right portion of the substrate on the basis of the common line and a second group of unit pixels located in a left portion of the substrate on the basis of the common line, each unit pixel defined by a plurality of gate lines and data lines orthogonally intersecting each other; and a plurality of thin film transistors formed at a right side of the respective unit pixels of the first group and at a left side of the respective unit pixels of the second group.Type: GrantFiled: December 19, 2012Date of Patent: December 30, 2014Assignee: LG Display Co., Ltd.Inventor: Hyuck Choi
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Publication number: 20140362064Abstract: The invention discloses an active array substrate, a driving method thereof, and an LCD using the same. The active array substrate includes a substrate, a plurality of first scan lines and second scan lines alternately disposed on the substrate, a plurality of first data lines and second data lines alternately disposed on the substrate, a plurality of first, second, and third sub-pixel electrodes, and a plurality of switches. The plurality of first scan lines and second scan lines intersect the plurality of first data lines and second data lines. Each of the second sub-pixel electrodes and one of the first sub-pixel electrodes are located at opposite sides of one of the second data lines. Each of the third sub-pixel electrodes and one of the first sub-pixel electrodes are located at opposite sides of one of the first data lines.Type: ApplicationFiled: May 16, 2014Publication date: December 11, 2014Applicant: AU OPTRONICS CORP.Inventors: Shyh-Bin KUO, Tzu-Wei LIU, Teng-Wei CHEN
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Patent number: 8908136Abstract: The invention provides a liquid crystal display panel with a multi-domain pixel layout, including: a plurality of pixel units arranged in a matrix formed by columns and rows, wherein each pixel unit is divided into a plurality of domains; a first alignment layer aligned to directions along the columns; and a second alignment layer aligned to directions along the rows. For two adjacent pixel units arranged in the column direction, the domains adjacent to a boundary between the two adjacent pixel units are defined with the same directions which liquid crystal molecules tilt toward by the first and second alignment layers.Type: GrantFiled: November 9, 2012Date of Patent: December 9, 2014Assignee: InnoLux CorporationInventors: Jian-Cheng Chen, Bo-Chin Tsuei, Bo-Han Lyu, Hong-Sheng Hsieh, Tzung-Han Tsai
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Patent number: 8908126Abstract: A liquid crystal display includes: an insulation substrate; pixel electrodes on the insulation substrate; a voltage auxiliary wiring on the insulation substrate and between adjacent pixel electrodes; a liquid crystal layer positioned in microcavities, where the voltage auxiliary wiring is exposed between adjacent microcavities; and a common electrode which overlaps the liquid crystal layer and the exposed voltage auxiliary wiring.Type: GrantFiled: December 20, 2012Date of Patent: December 9, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sung Hwan Won, Young Joon Cho, Kyung Tae Chae, Nak Cho Choi
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Patent number: 8902392Abstract: A TFT array is disclosed that includes a substrate, a gate line, a data line; and a pixel, wherein the pixel comprises a first pixel electrode portion comprising a plurality of spaced apart first electrode lines, the first pixel electrode portion having an associated TFT coupled to the first electrode portion, a second pixel electrode portion comprising a plurality of spaced apart second electrode lines, the second pixel electrode portion capacitively coupled with the first pixel electrode portion, wherein a width of each of the first electrode lines of the first pixel electrode portion is narrower than a width of each of the second electrode lines of the second pixel electrode portion, and an interval between adjacent first electrode lines of the first pixel electrode portion is smaller than an interval between adjacent second electrode lines of the second pixel electrode portion.Type: GrantFiled: August 24, 2012Date of Patent: December 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seon-Ah Cho, Ji-Won Sohn, Hee-Wook Do, Jun-Hee Na
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Patent number: 8896505Abstract: A display, including a substrate having a display area including first and second non-overlapping pixel groups and a gutter located between the first and second pixel groups, the gutter having a dimension in a first direction separating the first and second pixel groups, and each pixel group includes a plurality of pixels, each pixel having three or more differently colored sub-pixels; and wherein the pixel centers of the pixels in each pixel group are arranged in a regular two-dimensional array having one dimension parallel to the first direction, and wherein the pixels within a pixel group are separated by an inter-pixel separation in the first direction; and one or more electrical elements arranged within the gutter, each subpixel being connected to one of the one or more electrical elements, wherein the gutter dimension is greater than the inter-pixel separation, so that artifacts in a displayed image are reduced.Type: GrantFiled: June 12, 2009Date of Patent: November 25, 2014Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Michael E. Miller
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Patent number: 8896797Abstract: A liquid crystal display panel having improved lateral visibility. The liquid crystal display panel includes a first substrate including a pixel electrode formed on a pixel area including a first sub-pixel area and a second sub-pixel area; and a second substrate coupled to the first substrate with a liquid crystal layer accommodated between the first substrate and the second substrate, and including a common electrode formed on an area corresponding to the pixel area, wherein the pixel electrode includes a first sub-pixel electrode formed on the first sub-pixel area; a second sub-pixel electrode formed on the second sub-pixel area; and a contact electrode formed between the first sub-pixel area and the second sub-pixel area, and wherein the first sub-pixel electrode and the contact electrode are spaced apart from each other by a predetermined distance.Type: GrantFiled: March 11, 2011Date of Patent: November 25, 2014Assignee: Samsung Display Co., Ltd.Inventor: Hyeong-Cheol Ahn
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Patent number: 8896773Abstract: The present invention provides an array of FPR 3D liquid crystal display, including a plurality of pixel units and circuit affecting on the pixel unit. The pixel unit is divided into main pixel area and sub pixel area, and the circuit is paid out between pixel units. The present invention also provides an FPR 3D liquid crystal display panel. As such, the present invention can improve opening ratio and penetration ratio of liquid crystal display panel in 3D display mode to increase luminance of liquid crystal display panel.Type: GrantFiled: September 25, 2012Date of Patent: November 25, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Zui Wang
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Patent number: 8885131Abstract: A liquid crystal display device (100) according to the present invention includes a color display pixel D including pixels PA through PD arrayed in a matrix. The pixels PA through PD respectively include sub pixels SA1 through SD1and sub pixels SA2 through SD2. At least at an intermediate gray scale level, the luminance of the sub pixels SA2 through SD2 is higher than the luminance of the sub pixels SA1through SD1. The plurality of sub pixels S included in the pixels PA through PD are arrayed in a matrix. The sub pixel SA2 is adjacent to the sub pixel SB2 in the row direction, is adjacent to the sub pixel SC2 in the column direction, and is adjacent to the sub pixel SD2 in an oblique direction.Type: GrantFiled: January 27, 2011Date of Patent: November 11, 2014Assignee: Sharp Kabushiki KaishaInventors: Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Patent number: 8885130Abstract: Embodiments may include a fringe field switching mode liquid crystal display (LCD) apparatus. The fringe field switching mode LCD apparatus includes a first substrate on which a first electrode and a second electrode are installed, the second electrode facing the first electrode and having a plurality of slits therein; a second substrate, which faces the first substrate; and a liquid crystal layer interposed between the first substrate and the second substrate, the first electrode having a protrusion at a slit end portion of the slits, the protrusion protruding toward the second electrode.Type: GrantFiled: September 23, 2011Date of Patent: November 11, 2014Assignee: Samsung Display Co., Ltd.Inventor: Mu-Kyung Jeon
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Patent number: 8878832Abstract: Provided is a pixel circuit which includes a plurality of subpixel circuits and which makes it possible to suppress overshooting of electric potentials of the subpixel circuits to a small level. A pixel circuit (PIX1) includes a first subpixel circuit (PIXA) and a second subpixel circuit (PIXB). The first subpixel circuit (PIXA) includes a first display element (ClcA), a first node (nA), a first external connection terminal (P1), and a first switching element (T1). The second subpixel circuit (PIXB) includes a second display element (ClcB), a second node (nB), a second external connection terminal (P2), a third external connection terminal (P3), a second switching element (T2), and a third switching element (T3). The first node (nA) and the second node (nB) are connected to each other via a first capacitor (C2).Type: GrantFiled: August 31, 2010Date of Patent: November 4, 2014Assignee: Sharp Kabushiki KaishaInventors: Seiji Ohhashi, Tsuyoshi Kamada, Tetsuya Ide, Shohei Katsuta
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Patent number: 8879038Abstract: The present invention discloses an array substrate, a liquid crystal display device and a manufacturing method of array substrate; an array substrate comprises a plurality of thin film transistors and a first pixel electrode connected with the drain electrode of the thin film transistor, wherein the array substrate also comprises a second pixel electrode which is arranged on the bottom of the first pixel electrode and forms mutual insulation with the first pixel electrode; The present invention can increase the penetration rate of the pixel, improve the visual color cast characteristic of a panel, and reduce uneven brightness caused by variation of electrode wire width.Type: GrantFiled: December 4, 2011Date of Patent: November 4, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chenghung Chen
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Patent number: 8873013Abstract: A liquid crystal display (LCD) panel divided into a first area and a second area is provided. The first and second areas both include first sub-pixels and second sub-pixels. Each first sub-pixel provides a first main alignment vector; each second sub-pixel provides a second main alignment vector having a direction opposite to that of the first main alignment vector. The LCD panel has first sub-pixel units and second sub-pixel units arranged in arrays. Each first sub-pixel unit includes one first sub-pixel and one second sub-pixel sequentially arranged from top to bottom in a column direction. Each second sub-pixel unit includes one first sub-pixel and one second sub-pixel sequentially arranged from bottom to top in the column direction. In any one of the first area and the second area, multiple first sub-pixel units and multiple second sub-pixel units are arranged together in a same row.Type: GrantFiled: September 8, 2011Date of Patent: October 28, 2014Assignee: Au Optronics CorporationInventors: Chao-Wei Yeh, Chien-Huang Liao, Wen-Hao Hsu
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Patent number: 8867007Abstract: 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: GrantFiled: June 27, 2013Date of Patent: October 21, 2014Assignee: Japan Display Inc.Inventor: Jin Hirosawa
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Patent number: 8866715Abstract: Each pixel includes two pixel electrodes connected to each other via a capacitor, and in respect to a pixel (101) that belongs to the column of pixels and to the row of pixels, a transistor (12a) connected to one of the two scanning signal lines (16a, 16b) is electrically connected to one of two pixel electrodes (17a, 17b) included in the pixel (101), a transistor (12b) connected to the other one of the two scanning signal lines is electrically connected to the other one of the two pixel electrodes, and each of these transistors (12a, 12b) is electrically connected to an identical data signal line (15x) that is one of the two data signal lines (15x, 15y).Type: GrantFiled: April 15, 2010Date of Patent: October 21, 2014Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
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Patent number: 8860900Abstract: A liquid crystal display includes a first substrate including pixels, each having a transmissive area and a reflective area, a second substrate, and a liquid crystal layer disposed between the first and second substrates. Each of the pixels includes first and second thin film transistors which output a data signal in response to a first gate signal, a transmissive pixel electrode disposed in the transmissive area and electrically connected to the first thin film transistor to charge a first pixel voltage based on the data signal, a reflective pixel electrode disposed in the reflective area and electrically connected to the second thin film transistor to charge a second pixel voltage based on the data signal, and a voltage controller which controls the first pixel voltage and the second pixel voltage in response to a second gate signal, which is generated after the first gate signal.Type: GrantFiled: October 15, 2013Date of Patent: October 14, 2014Assignee: Samsung Display Co., Ltd.Inventors: Youn Hak Jeong, Jooseok Yeom, Keunchan Oh, Yoonsung Um, Heehwan Lee, Kyuwan Ryu, Jaejin Lyu, Myungjae Park
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Publication number: 20140300853Abstract: A display device includes: a substrate, on which pixel areas arranged substantially in a matrix form having pixel rows and pixel columns are defined; a thin film transistor disposed on the substrate; a pixel electrode disposed in the pixel areas and connected to the thin film transistor; common electrodes disposed on the pixel electrode and spaced apart from the pixel electrode, where a microcavity is defined between the pixel electrode and the common electrodes; a roof layer disposed on the common electrodes, where a liquid crystal injection hole is defined through the common electrodes and the roof layer and exposes the microcavity; a liquid crystal layer disposed in the microcavity; and an encapsulation layer disposed on the roof layer, where the encapsulation layer covers the liquid crystal injection hole and seals the microcavity, where the common electrodes in the pixel rows are connected to each other.Type: ApplicationFiled: October 7, 2013Publication date: October 9, 2014Applicant: Samsung Display Co., Ltd.Inventors: Won Tae KIM, Yong Seok KIM, Sung Hwan WON, Seon Uk LEE, Kyung Tae CHAE, Pil Sook KWON, Dae Ho LEE, Woo Jae LEE, Tae Woo LIM
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Patent number: 8854561Abstract: A LCD panel in which a pixel has a first sub-pixel area and a second sub-pixel area, each area having a storage capacitor. Each pixel has a first gate line for providing a first gate-line signal for charging the first and second storage capacitors, and a second gate line for providing a second gate-line signal for removing part of the charges in the second storage capacitor to a third capacitor after the first gate-line signal has passed. The width of the first and second gate-line signals and their timing can be varied so that the first gate-line signal provided to a row can be used as the second gate-line signal to one of the preceding rows. In some embodiments, a pixel in each row has a duplicate pixel arranged to similarly receive the first and second gate-line signals, but data signals are received from different data lines.Type: GrantFiled: November 13, 2009Date of Patent: October 7, 2014Assignee: Au Optronics CorporationInventors: Pei-Chun Liao, Tien-Lun Ting, Wen-Hao Hsu, Hung-Lung Hou
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Publication number: 20140292732Abstract: A display apparatus includes: a liquid crystal display element in which a plurality of display units including at least a pixel that displays an image for a first eyepoint and a pixel that displays an image for a second eyepoint are arranged in a matrix shape; an optical unit which distributes light emitted from the pixel that displays the image for the first eyepoint and light emitted from the pixel that displays the image for the second eyepoint in mutually different directions; a first control electrode and a second control electrode disposed on each pixel in the display units; and a plurality of domain regions of which the orientation is controlled by a diagonal electric field or a lateral electric field formed by the first control electrode and the second control electrode and which have different liquid crystal molecule orientation states.Type: ApplicationFiled: September 27, 2013Publication date: October 2, 2014Applicant: NLT Technologies, Ltd.Inventors: Shinya NIIOKA, Koji SHIGEMURA
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Publication number: 20140285761Abstract: According to an aspect, a display device includes a plurality of pixels each including a plurality of sub-pixels. Each of the sub-pixels is arranged around center of the corresponding pixel and divided into a plurality of display regions to perform N-bit area coverage modulation by a combination of the display regions. The display regions are arranged in such a manner that: a display region corresponding to a least significant bit of the area coverage modulation is arranged closest to the center of the corresponding pixel; and a display region corresponding to a higher significant bit of the area coverage modulation is arranged around the center of the pixel and further from the center of the corresponding pixel (N is a natural number of 2 or more).Type: ApplicationFiled: March 5, 2014Publication date: September 25, 2014Applicant: Japan Display Inc.Inventors: Masaya Tamaki, Yoko Fukunaga
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Patent number: 8842249Abstract: A display substrate includes a transparent substrate, a gate line formed on the transparent substrate, a data line crossing the gate line, a thin film transistor electrically connected to the gate line and the data line, and a pixel electrode. The pixel electrode includes a body electrode section electrically connected to the thin film transistor and a plurality of protruding electrodes protruding from the body electrode section. Each of the protruding electrodes includes a trapezoidal electrode having two sides that are inclined with respect to a protrusion direction that is a lengthwise direction of the body electrode section.Type: GrantFiled: August 28, 2013Date of Patent: September 23, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sung-Hoon Kim, Il-Yong Yoon, Yong-Woo Lee
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Publication number: 20140267996Abstract: A liquid crystal display device includes: a first substrate; a second substrate disposed opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate and including liquid crystal molecules vertically aligned when an electric field is not generated in the liquid crystal layer; and pixels, each of which includes a first subpixel and a second subpixel, where each of the first subpixel and the second subpixel includes: a first electrode disposed on the first substrate and having a planar shape; a second electrode disposed opposite to and spaced apart from the first electrode and including a linear electrode; and a third electrode disposed on the second substrate and having a planar shape, and a voltage applied to the second electrode of the first subpixel and a voltage applied to the second electrode of the second subpixel are different from each other.Type: ApplicationFiled: December 13, 2013Publication date: September 18, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Hoon KIM, Ki Chul SHIN, Dan Bi YANG
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Publication number: 20140267997Abstract: According to one embodiment, a liquid crystal display device includes a first common electrode including a first sub-common electrode extending along a gate line on a first interlayer insulation film, a pixel electrode which includes a first main pixel electrode extending in a second direction on a second interlayer insulation film, and a second common electrode which includes a second sub-common electrode extending in parallel to the first sub-common electrode on the second interlayer insulation film and has the same potential as the first common electrode. The first sub-common electrode is located on the pixel electrode side of a position overlapping the gate line. The second sub-common electrode is opposed to the gate line.Type: ApplicationFiled: March 10, 2014Publication date: September 18, 2014Applicant: Japan Display Inc.Inventors: Hitomi Hasegawa, Jin Hirosawa
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Patent number: 8836903Abstract: A liquid crystal display includes first and second substrates, and a liquid crystal layer disposed therebetween. First and second gate lines are disposed on the first substrate. First and second data lines, and a power line are disposed on the first substrate. A first switching element is connected to the first gate line and the first data line, a second switching element is connected to the first gate line and the power line, a third switching element is connected to the second gate line and the second data line, a first pixel electrode is connected to the first switching element, a second pixel electrode is connected to the second switching element, a third pixel electrode is connected to the second switching element, and a fourth pixel electrode is connected to the third switching element, and a gate-on voltage can be simultaneously applied to the first and second gate lines.Type: GrantFiled: October 7, 2010Date of Patent: September 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: Se-Hyoung Cho, Dong-Gyu Kim, Mee-Hye Jung, Dong-Hyeon Ki, Seung-Soo Baek, Hye-Seok Na
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Patent number: 8836875Abstract: 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: GrantFiled: November 21, 2012Date of Patent: September 16, 2014Assignee: Japan Display West Inc.Inventors: Tsuyoshi Ohyama, Yingbao Yang, Takeo Koito
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Publication number: 20140253859Abstract: Provided is a liquid crystal display, including: a first substrate; a pixel electrode disposed on the first substrate; a second substrate facing the first substrate; a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate, the liquid crystal layer including a plurality of liquid crystal molecules, in which the common electrode includes a cross-shaped cutout, the cross-shaped cutout overlapping the pixel electrode and dividing the pixel electrode into a plurality of subregions, and the pixel electrode includes a direction controller extend in a direction parallel to a line connecting an intersecting point of the cross-shaped cutout and a pixel corner edge opposing the intersecting point.Type: ApplicationFiled: February 24, 2014Publication date: September 11, 2014Applicant: Samsung Display Co., Ltd.Inventors: Hyung Guen YOON, Sung-Jae YUN, Oh Jeong KWON, Jae Hong PARK, Jin Won KIM, Kyung Hae PARK, Dong-Chul SHIN
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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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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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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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Patent number: RE45283Abstract: To reduce viewing angle dependence of ? characteristics in a normally black liquid crystal display. Each pixel 10 has a first sub-pixel 10a and a second sub-pixel 10b which can apply mutually different voltages to their respective liquid crystal layers. Relationships ?V12 (gk)>0 volts and ?V12 (gk)??V12 (gk+1) are satisfied at least in a range 0<gk?n?1 if it is assumed that ?V12=V1?V2, where ?V12 is the difference between root-mean-square voltage V1 applied to the liquid crystal layer of the first sub-pixel 10a and root-mean-square voltage V2 applied to the liquid crystal layer of the second sub-pixel 10b.Type: GrantFiled: March 16, 2011Date of Patent: December 9, 2014Assignee: Sharp Kabushiki KaishaInventor: Fumikazu Shimoshikiryo