Split Pixels Patents (Class 349/144)
  • Patent number: 8502949
    Abstract: A display panel includes a first display substrate, a second display substrate, and a liquid crystal layer. The first display substrate includes a first base substrate having a plurality of display cells, a plurality of data lines, a plurality of gate lines, and a plurality of pixel electrodes. The data lines, the gate lines and the pixel electrodes are respectively separated in each of the display cells. The second display substrate includes a second base substrate, a light blocking pattern corresponding to the data lines and the gate lines, a common electrode facing the pixel electrodes, and a common line overlapping with the blocking pattern. The liquid crystal layer is disposed between the first and second display substrate.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: August 6, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung-Tai Han, Eun-Guk Lee, Young-Goo Song, Hyuk-Jin Kim, Min-Wook Park, Jong-In Kim, Hyo-Seop Kim
  • Patent number: 8497968
    Abstract: A liquid crystal display (LCD) includes a first sub-pixel electrode to which a first data signal is applied, a second sub-pixel electrode which is spaced apart from the first pixel electrode and to which a second data signal is applied, and a floating electrode which is capacitance-coupled to the first sub-pixel electrode and the second sub-pixel electrodes. Also described is a method of controlling an LCD, the method including applying a first data signal to a first sub-pixel electrode, applying a second data signal to a second sub-pixel electrode, and capacitance-coupling a floating electrode to the first sub-pixel electrode and the second sub-pixel electrode.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 30, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung-Ju Shin, Chong-Chul Chai, Hwa-Sung Woo, Kwang-Chul Jung
  • Patent number: 8497969
    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: November 23, 2011
    Date of Patent: July 30, 2013
    Assignee: Japan Display Central Inc.
    Inventor: Jin Hirosawa
  • Publication number: 20130188108
    Abstract: In an embodiment of the disclosure, a pixel structure is provided. The pixel structure includes a first sub-pixel row including a plurality of sub-pixels electrically connecting to a first scan line, and a second sub-pixel row including a plurality of sub-pixels, wherein the first scan line passes through an area of the sub-pixels of the second sub-pixel row.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 25, 2013
    Applicant: INNOLUX CORPORATION
    Inventors: Li-Wei SUNG, Chung-Yi WANG, An-Chang WANG, Yao-Lien HSIEH
  • Patent number: 8493523
    Abstract: In a high-resolution liquid crystal display with improved side visibility having a color filter on array, a unit pixel includes first and second sub-pixels in which liquid crystals are continuously aligned and electrically isolated. A first pixel electrode for implementing the first sub-pixel is formed on a color filter layer and a second protective layer, and a second pixel electrode for implementing the second sub-pixel is formed between the color filter layer and the second protective layer. The second protective layer the second protective layer formed on the second pixel electrode lowers the electric field of the second sub-pixel, so that a liquid crystal application voltage applied to the second sub-pixel is lower than the voltage applied to the first sub-pixel. Accordingly, the transmittances of the first and second sub-pixels in the unit pixel are different from each other, to improve side visibility.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: July 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jae-Hyun Kim
  • Patent number: 8493540
    Abstract: A display panel comprises a first substrate, a second substrate including a display area and a peripheral area surrounding the display area, a transistor layer including, formed in the display area of the substrate, at least one transistor connected to a gate line and a data line, at least one color filter formed in a plurality of pixel regions on the transistor layer, a light blocking member disposed between the color filters, at least one pixel electrode formed on the color filter, an opaque spacing part formed on the color filter corresponding to the transistor so as to maintain a cell gap between the first and second substrates. The light blocking member in some embodiments of the invention is not formed on the first and second transistors to allow for inspection of a channel in the transistor.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung-Tai Han, Jang-Soo Kim, Byung-Duk Yang
  • Patent number: 8482687
    Abstract: An exemplary liquid crystal display device includes a data line, a pixel, a first gate line, a second gate line, an additional electrode and an additional gate line. The pixel includes a first sub-pixel and a second sub-pixel. The first gate line is electrically coupled to the first sub-pixel. The second gate line is electrically coupled to the second sub-pixel. The first sub-pixel is electrically coupled to the data line to receive a signal provided from the data line. The second sub-pixel is electrically coupled to the first sub-pixel through the additional electrode and to receive a signal provided from the data line through the first sub-pixel. The additional gate line is arranged crossing over the additional electrode and whereby a compensation capacitance is formed between the additional gate line and the additional electrode.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 9, 2013
    Assignee: AU Optronics Corp.
    Inventors: Chia-Chiang Hsiao, Chih-Wen Chen, Li-Chih Hsu
  • Patent number: 8482701
    Abstract: The present invention provides a polymer stabilization alignment liquid crystal display panel having a plurality of pixel regions. Each pixel region includes a main region and a sub region, and a first pixel electrode and a second pixel electrode correspond to the main region and the sub region respectively. Each first pixel electrode is separated from the adjacent data line and thereby forming a gap therebetween. Each second pixel electrode partially overlaps the adjacent data line. In addition, each second pixel electrode includes a plurality of branches, and at least one edge of the branches may be parallel to the data lines. Accordingly, the present invention not only can increase the aperture ratio, but also well control the liquid crystal molecules located near the data lines. Therefore, the display quality of the liquid crystal display panel can be improved.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 9, 2013
    Assignee: Au Optronics Corp.
    Inventors: Chin-An Tseng, Chia-Yu Lee, Yen-Heng Huang, Wen-Hsien Tseng, Chia-Hui Pai, Chung-Kai Chen, Wei-Yuan Cheng, Ting-Yi Cho
  • Patent number: 8482685
    Abstract: In a liquid crystal display panel, an array substrate includes a plurality of pixels that each having a switching device, a first pixel electrode, a coupling electrode, and a second pixel electrode. The switching device outputs a data voltage in response to a gate signal, and the first pixel electrode and the coupling electrode are connected to an output electrode of the switching device to receive the data voltage. The second pixel electrode faces the coupling electrode and receives a voltage lower than the data voltage. The resistance between the second pixel electrode and the coupling electrode is less than the resistance between the second pixel electrode and the common electrode.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 9, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kyung-Wook Kim
  • Publication number: 20130169918
    Abstract: In one embodiment, a first substrate is provided with a pixel electrode including a contact portion, a pair of main pixel electrodes extending in a first direction from the contact portion, a sub-pixel electrode arranged between the contact portion and an end of the extending main pixel electrodes and extending in a second direction so as to connect the pair of main pixel electrodes. A second substrate is provided with a common electrode including first and second main common electrodes sandwiching the pair of the main pixel electrodes, a third main common electrode arranged substantially in the center between the pair of main pixel electrodes and extending in parallel with the first and second main common electrodes, and a sub-common electrode arranged between the contact portion and the sub-pixel electrode and connected with the first, second and third main common electrodes extending in the second direction.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 4, 2013
    Inventors: Masato Kesho, Hirokazu Morimoto, Kazuhiro Takahashi, Jin Hirosawa
  • Patent number: 8471994
    Abstract: A liquid crystal display device including first and second substrates, with a liquid crystal layer sealed therebetween; and first and second electrodes formed, respectively, on the first and second substrates. A first molecule orientation film is formed on the first substrate so as to cover the first electrode and a second molecule orientation film formed on the second substrate so as to cover the second electrode. A polarizer with a light absorption axis P is provided outside of the first substrate, and an analyzer with a light absorption axis A is provided outside of the second substrate. The light absorption axis A crosses the light absorption axis P. A plurality of micro structures are associated with at least one of the first and second electrodes, wherein the micro structures are obliquely arranged with respect to the light absorption axis P and the light absorption axis A.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 25, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
  • Patent number: 8471972
    Abstract: An active matrix substrate includes a data signal line (15x), a storage capacity wiring (18x), scan signal lines (16a, 16b), a transistor (12a) connected to the data signal line (15x) and the scan signal line (16a), a transistor (12b) connected to the storage capacity wiring (18x) and the scan signal line (16b), and pixel electrodes (17 a, 17b) formed in a pixel (101) area. The pixel electrode (17a) is connected to the data signal line (15x) through the transistor (12a), and the pixel electrode (17b) is connected to the pixel electrode (17a) through a capacitor (C101) and connected to the storage capacity wiring (18x) through the transistor (12b).
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 25, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshihide Tsubata
  • Publication number: 20130154911
    Abstract: A display device includes a first, second and third sub-pixel areas allowing light of a first, second and third main wavelengths transmitting therethrough, respectively. The first, second and third sub-pixel areas have first, second and third ratios of first, second and third electrode widths to first, second and third electrode slits of first, second and third interdigitated electrodes, respectively. When the first main wavelength is larger than the second main wavelength and the second main wavelength is larger than the third main wavelength, a difference between any two of the first, second and third ratios is less than 0.2. A first electrode slit of the first interdigitated electrode is smaller than the second electrode slit of the second interdigitated electrode, and the second electrode slit of the second interdigitated electrode is smaller than the third electrode slit of the third interdigitated electrode.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 20, 2013
    Applicants: CHIMEI INNOLUX CORPORATION, INNOCOM TECHNOLOGY CO., LTD
    Inventors: INNOCOM TECHNOLOGY CO., LTD, CHIMEI INNOLUX CORPORATION
  • Patent number: 8467026
    Abstract: A liquid crystal display device includes: a plurality of pixel electrodes formed of a frame-shaped connection electrode and electrode bodies arranged in parallel to one another in a frame of the connection electrode and supported by and connected to the connection electrode; and a common electrode insulated from the plurality of pixel electrodes.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: June 18, 2013
    Assignee: Sony Corporation
    Inventors: Yuichi Inoue, Ryo Ogawa, Shunichi Suwa
  • Patent number: 8462304
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer and an electrode structure. The second substrate is substantially parallel to the first substrate. The liquid crystal layer is located between the first substrate and the second substrate. The electrode structure is disposed on the first substrate. The electrode structure includes a first branch portion and a second branch portion. The first branch portion includes first branch electrodes. The two adjacent first branch electrodes are substantially parallel to each other and separated apart by a first interval. The second branch portion includes second branch electrodes. The two adjacent second branch electrodes are substantially parallel to each other and separated apart by a second interval. Any first branch electrode corresponds to at least part of one of the second intervals. Any second branch electrode corresponds to at least part of one of the first intervals.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: June 11, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Chien Hong Chen, Ching Che Yang
  • Patent number: 8462305
    Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: June 11, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
  • Patent number: 8462283
    Abstract: A pixel structure includes at least one first sub-pixel electrode, at least one second sub-pixel electrode, at least one common line, at least one first transistor electrically connected to the first sub-pixel electrode, and at least one second transistor electrically connected to the second sub-pixel electrode. The common line overlaps and is coupled respectively with the first sub-pixel electrode and the second sub-pixel electrode so as to respectively form a first storage capacitor and a second storage capacitor. The second storage capacitor is larger than the first storage capacitor. A first adjusting capacitor of the first transistor is larger than a second adjusting capacitor of the second transistor.
    Type: Grant
    Filed: January 30, 2011
    Date of Patent: June 11, 2013
    Assignee: AU Optronics Corp.
    Inventors: Peng-Bo Xi, Shin-Hung Yeh, Wei-Kai Huang, Ya-Ling Hsu
  • Publication number: 20130141685
    Abstract: Another embodiment of the present invention provides an array substrate and a liquid crystal display. The array substrate comprises a plurality of gate lines and a plurality of data lines, and the gate lines and the data lines intersect each other to define a plurality of sub-pixel regions; each sub-pixel region comprises a first transparent electrode, a second transparent electrode and a thin film transistor (TFT), and in the sub-pixel region, a first edge of the second transparent electrode away from the TFT and along the direction of the gate lines is parallel to a second edge of a gate line for an adjacent sub-pixel region, and the second edges is the edge, closest to the first edge, of the gate line for the adjacent sub-pixel region.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 6, 2013
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoling Xu, Jaegeon You
  • Publication number: 20130128168
    Abstract: A liquid crystal display including a first substrate, a second substrate, and liquid crystal molecules disposed between the first substrate and the second substrate. The first substrate includes a first base substrate and a common electrode disposed on the first base substrate. The second substrate includes a second base substrate facing the first base substrate and a first pixel electrode disposed on the second base substrate. The first pixel electrode includes a first area and a second area which form different electric fields in cooperation with the common electrode. Accordingly, the liquid crystal display enhances an aperture ratio and increases a side viewing angle.
    Type: Application
    Filed: May 30, 2012
    Publication date: May 23, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hoon KIM, Kaeun KIM, Su Jeong KIM, Kichul SHIN, Hokil OH, Jae-Hoon JUNG, Minju HAN
  • Patent number: 8446538
    Abstract: A display substrate may include a substrate, a first pixel electrode, a first switching element, and a second switching element. The first pixel electrode may be disposed in a first pixel area of the substrate and may include high and low electrodes. Short sides of the first pixel area may be defined by first and second data lines adjacent to one other. A long side of the first pixel area may be defined by a first gate line. The high electrode may be adjacent to the first data line, and the low electrode may be adjacent to the second data line. The first switching element may be electrically connected to the first gate line and the first data line, and may contact the high electrode. The second switching element may be electrically connected to the first gate line and the second data line, and may contact the low electrode.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong-Gyu Kim
  • Publication number: 20130120703
    Abstract: A liquid crystal display uses a pixel division method by which the size of a defect can be reduced much more than conventionally possible, and a defect correcting method for the liquid crystal display. The liquid crystal display is provided with an active matrix array substrate including a plurality of gate lines and a plurality of source lines arranged on a transparent substrate to intersect with each other, and a plurality of pixel electrodes arranged in a matrix, each pixel electrode including an assembly of a plurality of sub-pixel electrodes, separate TFTs respectively connected to the sub-pixel electrodes in the vicinity of an intersection portion of the gate line and the source line, the TFTs being driven by the common gate line and the common source line, and at least one opening portion being formed in a lower-layer side line placed in a lower layer at the intersection portion.
    Type: Application
    Filed: January 3, 2013
    Publication date: May 16, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Sharp Kabushiki Kaisha
  • Patent number: 8441589
    Abstract: A pixel structure electrically connected to a data line and a scan line, and including a first and a second active device, a first and a second pixel electrode, and a first and a second capacitance electrode is provided. The first pixel electrode electrically connected to the first active device includes a first and a second electrode block electrically connected to each other. The second pixel electrode electrically connected to the second active device is electrically insulated from the first pixel electrode and separates the first and the second electrode block. The first pixel electrode respectively forms a first and a second capacitor with the first and the second capacitance electrode. The second pixel electrode respectively forms a third and a fourth capacitor with the first and the second capacitance electrode. The first and the second capacitor have different capacitances. The third and the fourth capacitor have different capacitances.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: May 14, 2013
    Assignee: Au Optronics Corporation
    Inventors: Jenn-Jia Su, Ting-Wei Su, Wen-Hao Hsu
  • Patent number: 8436955
    Abstract: A liquid crystal display wherein a first power source supply line and a second power source supply line are respectively applied with a first voltage and a second voltage having a predetermined magnitude, and a first power source supply line and a second power source supply line are disposed as a pair between a first pixel electrode and a second pixel electrode. The first voltage and the second voltage may have different polarities.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa-Sung Woo, Dong-Gyu Kim, Hyang-Yul Kim, Joo-Nyung Jang, Sung-Woon Kim, Cheol Shin, Dong-Chul Shin
  • Patent number: 8432518
    Abstract: A liquid crystal display device including first and second substrates; liquid crystal contained between the substrates; a polymer which determines directions in which liquid crystal molecules tilt; a plurality of gate and data bus lines; and a plurality of picture elements. At least one of the picture elements includes a switching element, and first and second sub picture element electrodes. The first sub picture element electrode connects to the switching element and the second sub picture element electrode connects, via capacitive coupling, to the switching element. The first substrate further includes a control electrode that is connected to the switching element and the first sub picture element electrode. The control electrode is capacitively coupled to the second sub picture element electrode through an insulating film. The area of the second sub picture element electrode is larger than the area of the first sub picture element electrode.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: April 30, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Patent number: 8427621
    Abstract: A liquid crystal display includes a first subpixel electrode and a second subpixel electrode, in which a shape of the second subpixel electrode is a quadrilateral in which two angles facing each other are obtuse angles or acute angles and the first subpixel electrode surrounds the second subpixel electrode.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hoon Jung, Su-Jeong Kim, Ki-Chul Shin, Hoon Kim, Ho-Kil Oh
  • Patent number: 8421977
    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: February 11, 2009
    Date of Patent: April 16, 2013
    Assignee: Japan Display Central Inc.
    Inventor: Jin Hirosawa
  • Publication number: 20130088681
    Abstract: An object of the present invention is to provide a display panel and a display device which are able to sufficiently increase the luminance, and to suppress the occurrence of difference in response speed, transmissivity, and viewing angle characteristics, and the like for each color, and which are also able to improve the yield in the manufacturing process, and are able to be applied to various display modes, such as a CPA mode, an MVA mode, and an IPS mode.
    Type: Application
    Filed: May 24, 2011
    Publication date: April 11, 2013
    Inventors: Yuhko Hisada, Hironobu Sawada, Junichi Morinaga, Katsushige Asada
  • Patent number: 8411220
    Abstract: A multi-domain vertical alignment liquid crystal display and a lower substrate thereof are disclosed. The voltage provided by coupling electrode lines is swung between a high voltage level and a low voltage level. Therefore, with different coupling of a large pixel electrode and of a small pixel electrode that both receive the same color displaying data, the voltage on the large pixel electrode is different from that on the small pixel electrode. The tilt angle of the liquid crystal between the large pixel electrode and the upper electrode is different from the tilt angle of the liquid crystal between the small pixel electrode and the upper electrode for compensating the gamma value of the color. Besides, through adjusting the value of the voltage respectively on the coupling electrode lines to compensate the gamma values of different colors and the gamma values of different colors will tend to be uniform.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: April 2, 2013
    Assignee: AU Optronics Corp.
    Inventor: Chih-Sheng Chen
  • Publication number: 20130077038
    Abstract: In a display panel and a method of manufacturing the display panel, the display panel includes a display substrate including a first electrode and a second electrode insulated from the first electrode and disposed on the first electrode, an opposite substrate including a third electrode facing the second electrode, and a liquid crystal layer interposed between the display substrate and the opposite substrate. The liquid crystal layer includes liquid crystal molecules, a reactive mesogen polymer, and nano-rods.
    Type: Application
    Filed: June 15, 2012
    Publication date: March 28, 2013
    Applicants: INSTITUTE FOR RESEARCH & INDUSTRY COOPERATION, PNU, SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Joon RHO, Hyeok-Jin LEE, Ji-Hong BAE, Jun-Ha PARK, Hye-Lim JANG, Tae-Hoon YOON, Dong-Han SONG, Ki-Han KIM, Jung-Wook KIM
  • Patent number: 8405803
    Abstract: A liquid crystal display device includes a first substrate; first to fourth pixels arranged in a matrix pattern on the first substrate, the fourth pixel having an area smaller than each of the first and second pixels and larger than the third pixel; a second substrate facing the first substrate; first to fourth color filter patterns formed on the second substrate and respectively corresponding to the first to fourth pixels, wherein the first to fourth color filter patterns have green, blue, white and red colors, respectively; and a liquid crystal layer interposed between the first and second substrates.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: March 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Hoon Kim, Joong-Min Yoon
  • Publication number: 20130070002
    Abstract: The present invention is to provide a display panel and a display device in each of which the white luminance and/or the color reproduction range are/is sufficiently improved by changing the sub-pixel area for each color, so that unevenness of luminance is sufficiently suppressed, and the influence of line width variation on the aperture ratio is reduced. The display panel according to the present invention includes a pair of substrates, a display element sandwiched between the pair of substrates, and pixels each formed by sub-pixels of four or more colors, and is featured in that one of the pair of substrates includes scanning lines, signal lines, and sub-pixel electrodes, and in that the area of at least one of the sub-pixels of four or more colors is different from the area of the other sub-pixels, and the sub-pixel having the larger area overlaps with a plurality of the signal lines in plan view of the main surface of the display panel.
    Type: Application
    Filed: May 24, 2011
    Publication date: March 21, 2013
    Inventors: Yuhko Hisada, Hironobu Sawada, Junichi Morinaga, Katsushige Asada
  • Publication number: 20130063686
    Abstract: A liquid crystal display device (100) of the present invention has a plurality of pixels (P) which are in a matrix arrangement and includes: a first substrate (1) which includes a pixel electrode (12) which is provided in each pixel; a second substrate (2) which opposes the first substrate; and a vertical alignment liquid crystal layer (3) which is provided between these substrates, wherein light that is incident on the liquid crystal layer is circularly-polarized light, and the liquid crystal layer modulates the circularly-polarized light, thereby realizing display. The pixel electrode includes at least one cruciform trunk portion (12a), a plurality of branch portions (12b) extending from the at least one cruciform trunk portion in a direction of about 45°, and a plurality of slits (12c) provided between the plurality of branch portions. The second substrate includes a plurality of counter electrodes (22) which are electrically independent of each other in each pixel.
    Type: Application
    Filed: May 19, 2011
    Publication date: March 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kunihiro Tashiro, Hideki Fujimoto, Yoshihito Hara
  • Patent number: 8395743
    Abstract: A liquid crystal display includes a substrate, a plurality of pixel electrodes formed on the substrate, a common electrode facing the pixel electrodes, and a liquid crystal layer interposed between the pixel electrodes and the common electrode. The pixel electrode includes at least one oblique edge including a plurality of protruded and depressed portions.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Gyu Kim, Sung-Jae Moon
  • Patent number: 8395718
    Abstract: It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 12, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8390773
    Abstract: A liquid crystal display panel includes; an array substrate including a pixel electrode disposed in a pixel area, the pixel electrode including a reflective electrode disposed in a reflective area of the pixel area and a transparent electrode disposed in a transmissive area of the pixel area, at least one of the reflective electrode and the transparent electrode including a plurality of first slit electrodes, an opposite substrate including a first common electrode disposed in alignment with the reflective area, the first common electrode including a plurality of second slit electrodes each having a width wider than that of an individual first slit electrode of the plurality of first slit electrodes, and a liquid crystal layer interposed between the array substrate and the opposite substrate.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: March 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youn-Hak Jeong, Keun-Chan Oh, Yeon-Sik Ham, Dong-Gi Seong, Kang-Woo Kim, Yeon-Mun Jeon, Hee-Hwan Lee
  • Patent number: 8390750
    Abstract: In a liquid crystal display device where pixel electrodes and counter electrodes are arranged on one substrate in a stacked manner by way of an insulation layer, it is possible to lower a drive voltage while maintaining optical transmissivity. Pixels each of which includes a first pixel electrode, a second pixel electrode and a counter electrode are arranged on a substrate in a matrix array. A first pixel electrode and a second pixel electrode in one pixel include a plurality of comb-teeth portions respectively. The first pixel electrode and the second pixel electrode are alternately arranged on the same layer in an opposed manner with a gap defined between the comb-teeth portion of the first pixel electrode and the comb-teeth portion of the second pixel electrode. The first and second pixel electrodes and the counter electrode are arranged in a stacked manner with an insulation layer sandwiched therebetween.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: March 5, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Kikuo Ono
  • Patent number: 8390767
    Abstract: A method of manufacturing a display panel, the method includes forming a display panel including a first substrate, the first substrate including a pixel electrode disposed thereon, a second substrate including a common electrode disposed thereon, and a liquid crystal layer interposed between the first and the second substrates, the liquid crystal layer including a plurality of liquid crystal molecules and a plurality of ultraviolet (“UV”)-curable particles; and curing a portion of the UV-curable particles by irradiating light on the display panel, wherein an exposure voltage, which is greater than a maximum data voltage corresponding to maximum grayscale data of the display panel, is applied between the pixel electrode and the common electrode. Also described is a display panel.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: March 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Jae Kim, Jae-Jin Lyu, Seung-Beom Park, Ji-Won Sohn, Jun-Hyup Lee, Myeong-Ha Kye, Hoon Kim, Min-Goo Seok
  • Publication number: 20130050630
    Abstract: Air is sprayed on the first polymer film along a first negative direction in the sub pixel areas of an n-th row of a unit pixel area, and air is sprayed on the first polymer film along a first positive direction in the sub pixel areas of an (n+1)-th row of the unit pixel area to form a first alignment layer. Air is sprayed on the second polymer film along a second negative direction crossing the first negative direction in the sub pixel areas of an n-th column of the unit pixel area, and air is sprayed on the second polymer film along a second positive direction crossing the first positive direction in the sub pixel areas of an (n+1)-th column of the unit pixel area to form a second alignment layer.
    Type: Application
    Filed: May 25, 2012
    Publication date: February 28, 2013
    Inventors: JIN-SOO JUNG, Jun-Woo Lee, Baek-Kyun Jeon, Joo-Seok Yeom
  • Publication number: 20130050629
    Abstract: The present invention provides a liquid crystal display panel and a display apparatus using the same. The liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer. The liquid crystal layer is formed between the first substrate and the second substrate. The second substrate comprises a second electrode. The second electrode includes a plurality of elongated electrode elements, and the elongated electrode elements have at least two different arrangement pitches. The liquid crystal display panel is applicable to the display apparatus. The invention can improve the color shift problem of the liquid crystal display panel.
    Type: Application
    Filed: August 31, 2011
    Publication date: February 28, 2013
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chihtsung Kang
  • Patent number: 8384835
    Abstract: A display device includes liquid crystal capacitor element interposed between a pixel electrode and a counter electrode. The pixel electrode, one terminals of a first switch circuit and a second switch circuit, and a first terminal of a second transistor form an internal node. The other terminals of the first switch circuit is connected to the source line. The other terminal of the second switch circuit is connected to the voltage supply line and is configured by a series circuit of transistors. A control terminal of the transistor, a second terminal of the transistor, and one terminal of a boost capacitor element form an output node. The other terminal of the boost capacitor element, the control terminal of the transistor, and the control terminal of the transistor are connected to a boost line, a reference line, and a selecting line, respectively.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: February 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshimitsu Yamauchi
  • Patent number: 8373818
    Abstract: A multiple primary color display device according to the present invention includes a pixel defined by a plurality of sub pixels. The plurality of sub pixels include a first sub pixel to display a first color having a first hue, a second sub pixel to display a second color having a second hue, a third sub pixel to display a third color having a third hue, and a fourth sub pixel to display a fourth color having a fourth hue. When a color represented by the input signal is changed from black to white via a color of a prescribed hue, luminance levels of the plurality of sub pixels are set such that the luminance level of each of the first sub pixel, the second sub pixel and the third sub pixel is started to be increased without increasing the luminance level of the fourth sub pixel and such that the luminance level of the third sub pixel is increased at a lower rate than that of the luminance level of each of the first sub pixel and the second sub pixel.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: February 12, 2013
    Assignee: Sharp Kabushiki Kaihsa
    Inventors: Kazunari Tomizawa, Yuichi Yoshida, Akiko Sato
  • Patent number: 8368826
    Abstract: A liquid crystal display includes: a gate line disposed on a substrate to transmit a first gate signal to switching elements; a data line crossing the gate line to transmit a data voltage to the switching elements; a boosting gate line disposed on the substrate to transmit a second gate signal; a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode; a first switching element connected to the first subpixel electrode; a second switching element connected to the second subpixel electrode; a boosting capacitor including a first terminal connected to the first subpixel electrode; a third switching element connected to a second terminal of the boosting capacitor; and a fourth switching element including a gate electrode connected to the boosting gate line, a source electrode connected to the second subpixel electrode, and a drain electrode connected to the second terminal.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: February 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Jang Kim, Kyung-Ho Park, Sung-Jae Moon, Kee-Bum Park
  • Patent number: 8368827
    Abstract: An exemplary liquid crystal display device includes a data line, a pixel, a first gate line, a second gate line, an additional electrode and an additional gate line. The pixel includes a first sub-pixel and a second sub-pixel. The first gate line is electrically coupled to the first sub-pixel. The second gate line is electrically coupled to the second sub-pixel. The first sub-pixel is electrically coupled to the data line to receive a signal provided from the data line. The second sub-pixel is electrically coupled to the first sub-pixel through the additional electrode and to receive a signal provided from the data line through the first sub-pixel. The additional gate line is arranged crossing over the additional electrode and whereby a compensation capacitance is formed between the additional gate line and the additional electrode.
    Type: Grant
    Filed: January 9, 2010
    Date of Patent: February 5, 2013
    Assignee: AU Optronics Corp.
    Inventors: Chia-Chiang Hsiao, Chih-Wen Chen, Li-Chih Hsu
  • Patent number: 8368862
    Abstract: A method for manufacturing a liquid crystal display (“LCD”) includes; disposing a gate line including a gate electrode on a substrate, disposing a gate insulating layer on the gate line, disposing a data layer including a data line, source electrode and a drain electrode facing the source electrode on the gate insulating layer, disposing a color filter on the gate insulating layer, disposing an overcoat layer on the color filter, disposing a planarization layer on a portion of the overcoat layer corresponding to the gate line, the data line and the drain electrode, and disposing a pixel electrode in contacted with the overcoat layer in a region corresponding to the color filter.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su-Jeong Kim, Seung-Beom Park, Jae-Jin Lyu, Keun-Chan Oh, Yoon-Sung Um
  • Patent number: 8363194
    Abstract: In a liquid crystal display panel, a pixel electrode includes at least a main electrode strip and a plurality of sub electrode branches. The sub electrode branches extend outwardly from two opposite edges of the main electrode strip. The main electrode strip includes at least a node-controlling portion, the controlling width of the node-controlling portion are different from a trunk width of the main electrode strip. Otherwise, a plurality of first sub electrode branches and a plurality of second sub electrode branches are extend outwardly from two opposite edges of the main electrode strip respectively. Relating to the position of the first sub electrode branches, the second sub electrode branches has a position-shift amount along the extending direction of the main electrode strip. The position-shift amount is smaller than the branch width of the first or second sub electrode branch.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: January 29, 2013
    Assignee: AU Optronics Corp.
    Inventors: Wan-Hua Lu, Chia-Yu Lee, Pei-Chun Liao, Ting-Jui Chang
  • Patent number: 8358393
    Abstract: In one embodiment of an invention concerning liquid crystal display devices, a first pixel electrode of a thin film transistor (TFT) array substrate may overlap a slit of a second pixel electrode of the TFT array substrate but not overlap another slit of the second pixel electrode. This may help induce a multi-domain electric field without having to precisely position a common electrode of a color filter substrate and the TFT array substrate. This may prevent position errors, enhance display quality, produce a wider viewing angle, and lower color shift sometimes associated with conventional liquid crystal display devices and methods.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: January 22, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Chih-Yung Hsieh, Chien-Hong Chen, Jian-Cheng Chen
  • Patent number: 8355104
    Abstract: An MVA mode liquid crystal display device is configured such that a liquid crystal layer including liquid crystal molecules having negative dielectric constant anisotropy is held between a first substrate and a second substrate. The liquid crystal display device includes a structural body which controls an alignment direction of the liquid crystal molecules in a manner to form a multi-domain in each of pixels. The structural body includes a first structural body which is disposed in a manner to overlap a light-blocking wiring line, and a second structural body which is disposed in a direction substantially perpendicular to the first structural body and is formed to be narrower than the first structural body.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 15, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Norihiro Yoshida, Yoshitaka Yamada, Jin Hirosawa, Arihiro Takeda
  • Patent number: 8350978
    Abstract: An LCD includes: a first substrate; first, second, and third gate lines extending along a first direction, formed over the first substrate and being parallel with each other; data lines insulated from the first gate line, the second gate line, and the third gate line and extending along a second direction that intersects the first direction; first, second, and third thin film transistors connected with the first gate lines, the second gate line, the third gate line, respectively and connected with the data lines; a passivation layer covering the first thin film transistor, the second thin film transistor, and the third thin film transistor; and first, second, and third pixel electrodes formed over the passivation layer and connected with the first thin film transistor, the second thin film transistor, and the third thin film transistor, respectively.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: January 8, 2013
    Assignee: Samsung Display Co., Ltd
    Inventors: Seok-Je Seong, Ji-Eun Lee
  • Patent number: 8344389
    Abstract: An optoelectonice device array includes a plurality of packages, each enclosing an optoelectronic device, and positioned in at least one row. Each package overlaps at least one adjacent package, and may be hermetically sealed.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 1, 2013
    Assignee: General Electric Company
    Inventors: Donald Seton Farquhar, Michael Scott Herzog
  • Patent number: 8334538
    Abstract: A thin film transistor array panel includes: an insulation substrate; a gate line disposed on the insulation substrate and including a compensation pattern protruding from the gate line; a first data line and a second data line both intersecting the gate line; a first thin film transistor connected to the gate line and the first data line; a second thin film transistor connected to the gate line and the second data line; and a first pixel electrode and a second pixel electrode connected to the first thin film transistor and the second thin film transistor, respectively. The first pixel electrode and the second pixel electrode share the compensation pattern.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: December 18, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho-Jun Lee, Yeo-Geon Yoon, Hyoung-Wook Lee, Mi-Ae Lee