Transistor Patents (Class 349/42)
-
Patent number: 8497947Abstract: An LCD panel transmits the display data to sub-pixels in a zigzag pattern through a data line. The variation of the feed-through voltages of the sub-pixels may be modified by adjusting the ratios of the channel widths and the channel lengths of the TFTs in the sub-pixels to some predetermined ratios, or by adjusting the compensation capacitance to the coupling capacitance of the TFTs of the sub-pixels.Type: GrantFiled: May 29, 2011Date of Patent: July 30, 2013Assignee: AU Optronics Corp.Inventors: Chun-Chi Lai, Ching-Wei Chen, Tsan-Chun Wang, Kuo-Hsing Cheng, Yu-Cheng Chen
-
Publication number: 20130188108Abstract: 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: ApplicationFiled: January 18, 2013Publication date: July 25, 2013Applicant: INNOLUX CORPORATIONInventors: Li-Wei SUNG, Chung-Yi WANG, An-Chang WANG, Yao-Lien HSIEH
-
Patent number: 8493524Abstract: An array substrate and a display apparatus including the array substrate are provided. The array substrate includes a substrate divided into a display area and a peripheral area adjacent to the display area. A pixel array is formed on the substrate corresponding to the display area and receives a driving signal. A driving circuit includes a plurality of stages and is formed on the substrate corresponding to the peripheral area. Each of the stages includes a first transistor having a source electrode connected to an output terminal to output the driving signal, a channel layer formed between a gate insulating layer and the source electrode, the channel layer having an opening to facilitate contact between a portion of the gate insulating layer and the source electrode, and a capacitor defined by a gate electrode of the first transistor, the source electrode, and the gate insulating layer contacting the source electrode.Type: GrantFiled: December 1, 2005Date of Patent: July 23, 2013Assignee: Samsung Display Co., Ltd.Inventors: Yong-Koo Her, Jin Jeon, Yong-Han Park, Sang-Hoon Lee, Ji-Suk Lim
-
Patent number: 8493523Abstract: 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: GrantFiled: March 4, 2010Date of Patent: July 23, 2013Assignee: Samsung Display Co., Ltd.Inventor: Jae-Hyun Kim
-
Patent number: 8488077Abstract: An object is to provide a display device with excellent display characteristics, where a pixel circuit and a driver circuit provided over one substrate are formed using transistors which have different structures corresponding to characteristics of the respective circuits. The driver circuit portion includes a driver circuit transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using a metal film, and a channel layer is formed using an oxide semiconductor. The pixel portion includes a pixel transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using an oxide conductor, and a semiconductor layer is formed using an oxide semiconductor. The pixel transistor is formed using a light-transmitting material, and thus, a display device with higher aperture ratio can be manufactured.Type: GrantFiled: February 1, 2012Date of Patent: July 16, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Junichiro Sakata, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba, Masayuki Sakakura, Yoshiaki Oikawa
-
Publication number: 20130169899Abstract: A liquid crystal display device includes a plurality of pixels arranged in a matrix and constituted by first and second substrates and a liquid crystal layer held therebetween. The first substrate includes a common electrode arranged in common to the plurality of pixels, an insulating film arranged on the common electrode, a pixel electrode arranged facing the common electrode through the insulating film. Slits are formed in the pixel electrode. The liquid crystal layer is formed of a liquid crystal material having a voltage maintain rate larger than 90% in a period of 500 msec at temperature 60° C. and a rotational viscosity less than 90 mPa-s at temperature 25° C.Type: ApplicationFiled: November 19, 2012Publication date: July 4, 2013Applicant: Japan Display Central Inc.Inventors: Hiroki TSUDA, Kazuhiro Joten
-
Patent number: 8477278Abstract: A liquid crystal display panel includes a pixel array substrate, an opposite substrate, and a twisted nematic (TN) liquid crystal layer located between the two substrates. The pixel array substrate includes a first substrate, gate lines, data lines, thin film transistors (TFTs) coupled to the gate lines and the data lines, a first insulation layer, a transparent conductive layer, a second insulation layer, and pixel electrodes coupled to the TFTs through contact holes in the first and second insulation layers. The first insulation layer covers the gate lines, the data lines, and the TFTs. The transparent conductive layer, the second insulation layer, and the pixel electrodes are sequentially stacked on the first insulation layer and constitute a storage capacitor. A phase retardation value of the TN liquid crystal layer ranges from 250 to 480, and a dielectric anisotropy ?? of the TN liquid crystal layer ranges from 3 to 10.Type: GrantFiled: November 2, 2012Date of Patent: July 2, 2013Assignee: Hannstar Display Corp.Inventors: Chia-Hua Yu, Kun-Cheng Lee, I-Fang Wang, Feng-Wei Kuo
-
Publication number: 20130155341Abstract: The present disclosure relates to a transflective LCD panel. A thin film transistor and a first insulating layer are formed on the side of a first transparent substrate facing a second transparent substrate, and the first insulating layer covers the thin film transistor; a transparent electrode layer and a reflective electrode layer are formed above the first insulating layer. A color filter layer is provided on the side of the second transparent substrate facing the first transparent substrate, and comprises a first color filter layer and a second color filter layer, the first color filter layer corresponds to the reflective electrode layer and the second color filter layer corresponds to the transparent electrode layer which is overlapped with the reflective electrode layer, and the color filtering ability of the first color filter layer is less than that of the second first color filter layer.Type: ApplicationFiled: October 26, 2012Publication date: June 20, 2013Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaoxiong Tian, Jianshe Xue
-
Patent number: 8462281Abstract: An array substrate for a liquid crystal display (LCD) device includes a substrate including a display region and a non-display region, a driving circuit in the non-display region, at least a first thin film transistor (TFT) in the display region, a storage capacitor in the display region including a first storage electrode, a second storage electrode, and a third storage electrode, wherein the first storage electrode includes a first semiconductor layer and a counter electrode, and the third storage electrode includes a first transparent electrode pattern and a first metal pattern, a gate line and a data line crossing each other to define a pixel region in the display region, and a pixel electrode connected to the first TFT in the pixel region.Type: GrantFiled: April 17, 2009Date of Patent: June 11, 2013Assignee: LG Display Co., Ltd.Inventors: Sook-Woo Lee, Yong-In Park
-
Patent number: 8462286Abstract: A method of manufacturing, with high mass productivity, liquid crystal display devices having highly reliable thin film transistors with excellent electric characteristics is provided. In a liquid crystal display device having an inverted staggered thin film transistor, the inverted staggered thin film transistor is formed as follows: a gate insulating film is formed over a gate electrode; a microcrystalline semiconductor film which functions as a channel formation region is formed over the gate insulating film; a buffer layer is formed over the microcrystalline semiconductor film; a pair of source and drain regions are formed over the buffer layer; and a pair of source and drain electrodes are formed in contact with the source and drain regions so as to expose a part of the source and drain regions.Type: GrantFiled: November 20, 2012Date of Patent: June 11, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yukie Suzuki, Hideaki Kuwabara, Hajime Kimura
-
Patent number: 8462287Abstract: An active matrix substrate capable of suppressing a change in an off characteristic of the TFT even when current passage time becomes longer is provided. A diode is connected between a video signal line and a conductive plate formed so as to cover a TFT of a pixel formation portion. Current is passed to the diode when a potential of a video signal applied to the video signal line is lower than that of the conductive plate, and the potential of the conductive plate becomes equal to that of the video signal line. No current flows when the potential of the video signal is higher than that of the conductive plate and the potential of the diode remains the same. Consequently, a leak current which flows from the pixel electrode of the pixel formation portion to the video signal line when the TFT is in the off state is suppressed.Type: GrantFiled: August 19, 2009Date of Patent: June 11, 2013Assignee: Sharp Kabushiki KaishaInventors: Takashi Morimoto, Mitsuaki Hirata
-
Publication number: 20130135549Abstract: The present invention discloses a thin film transistor (TFT) array substrate, a liquid crystal display (LCD) and a method for manufacturing the same. The method comprises: forming coating layers on a display region and a non-display region of a first substrate; forming a stacked layer on the non-display region; forming at least one channel on the stacked layer by exposure and developing; filling the channel with a sealant; and bonding the first substrate to a second substrate by using the sealant. The present invention can precisely control the shape of the sealant for preventing the leakage of the sealant and an uneven cell thickness.Type: ApplicationFiled: December 5, 2011Publication date: May 30, 2013Inventors: Songxian Wen, Jung-mao Tsai, Shiue-shih Liao, Yizhuang Zhuang, Mingfeng Deng, Xiaoxin Zhang
-
Patent number: 8451394Abstract: The present invention includes a liquid crystal display device with an oxide film having high adhesiveness to a semiconductor layer or a pixel electrode to thereby prevent oxidation of a wiring material or the like, and includes a source electrode and a drain electrode having high conductivity, and a manufacturing method therefor. In one embodiment of the present invention, a liquid crystal display device has a TFT electrode of a TFT substrate, wherein a source electrode or a drain electrode includes a layer of mainly copper and an oxide covering an outer part of the layer. Further, in the present invention, the semiconductor layer or the pixel electrode and said source electrode or the drain electrode are in ohmic contact in the TFT electrode.Type: GrantFiled: April 20, 2010Date of Patent: May 28, 2013Assignee: Altiam Services Ltd. LLCInventors: Junichi Koike, Hideaki Kawakami
-
Publication number: 20130128168Abstract: 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: ApplicationFiled: May 30, 2012Publication date: May 23, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Hoon KIM, Kaeun KIM, Su Jeong KIM, Kichul SHIN, Hokil OH, Jae-Hoon JUNG, Minju HAN
-
Publication number: 20130128172Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: ApplicationFiled: November 15, 2012Publication date: May 23, 2013Applicant: JAPAN DISPLAY EAST INC.Inventor: JAPAN DISPLAY EAST INC.
-
Publication number: 20130128167Abstract: The present invention discloses a liquid crystal display device having a plurality of pixel areas defined by gate lines and data lines, and having a plurality of pixel units. Each pixel unit has a transistor, a pixel electrode, a common electrode and at least one connecting portion. The pixel electrode is connected to a drain of the transistor. The common electrode is connected to a corresponding common line and overlapped with the pixel electrode. The connecting portion is coplanar with the common electrode and connected to the common electrode, and insulatedly passes the gate line to connect with the common electrode of the pixel unit in an adjacent one of the pixel areas. With the above structure, the liquid crystal display device can provide better aperture ratio and transmittance.Type: ApplicationFiled: November 24, 2011Publication date: May 23, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Minghung Shih, Zuomin Liao
-
Patent number: 8446537Abstract: In an active matrix type liquid crystal display device, a plurality of pixels connected to thin film transistors (TFTs) are arranged in an active matrix form in a pixel portion, and driven by a driver circuit portion. The pixel portion and the driver circuit portion are formed on one of a pair of insulating substrates. A liquid crystal material is interposed between the insulating substrates. An black matrix material made of an organic resin is formed over the one insulating substrate in which the driver circuit portion has been formed. An flat film is formed on the black matrix material.Type: GrantFiled: January 9, 2012Date of Patent: May 21, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Takeshi Nishi
-
Patent number: 8445911Abstract: An active device array substrate including a substrate, scan lines, data lines, active devices, a first dielectric layer, a common line, a second dielectric layer, a patterned conductive layer, a third dielectric layer, and pixel electrodes is provided. At least a part of the active devices are electrically connected to the scan lines and the data lines. The first dielectric layer covers the scan lines, the data lines and the active devices. The common line is disposed on the first dielectric layer. The second dielectric layer covers the common line and the first dielectric layer. The patterned conductive layer is disposed on the second dielectric layer. The third dielectric layer covers the patterned conductive layer and the second dielectric layer. The pixel electrodes are disposed on the third dielectric layer and electrically connected to the patterned conductive layer and the active devices.Type: GrantFiled: April 30, 2010Date of Patent: May 21, 2013Assignee: Au Optronics CorporationInventors: Ching-Jung Yang, Ke-Chih Chang, Kuo-Yu Huang, Yu-Cheng Chen
-
Patent number: 8445339Abstract: A method for forming a conductor structure is provided. The method comprises: (1) providing a substrate; (2) forming a patterned dielectric layer with a first opening which exposes a portion of the substrate; forming a patterned organic material layer on the dielectric layer with a second opening which corresponds to the first opening and expose the exposed portion of the substrate; (3) forming a first barrier layer on the organic material layer and the exposed portion of the substrate; (4) forming a metal layer on the first barrier layer; and (5) removing the organic material layer, the first barrier layer thereon and the metal layer thereon.Type: GrantFiled: December 2, 2011Date of Patent: May 21, 2013Assignee: AU Optronics Corp.Inventors: Hantu Lin, Chienhung Chen
-
Patent number: 8445912Abstract: A high-performance thin film transistor structure which is easily manufactured is provided. The thin film transistor structure includes: a first electrode; second and third electrodes apart from each other in a hierarchical level different from that of the first electrode; first, second, and third wirings connected to the first, second, and third electrodes, respectively; a main stack body disposed so as to be opposed to the first electrode with an interlayer insulating layer in between, between the first electrode, and the second and third electrodes; and a sub stack body including an insulating layer and a semiconductor layer, disposed so as to be opposed to the first wiring with the interlayer insulating layer in between, between the first and second wirings in a position where the first and second wirings overlap and/or between the first and third wirings in a position where the first and third wirings overlap.Type: GrantFiled: February 16, 2011Date of Patent: May 21, 2013Assignee: Sony CorporationInventors: Iwao Yagi, Hideki Ono, Mari Sasaki
-
Publication number: 20130120679Abstract: A liquid crystal display device comprises a thin film transistor (TFT) substrate, a color filter (CF) substrate, a liquid crystal layer sandwiched between the TFT substrate and the CF substrate, a pixel electrode and a common electrode. Both of the pixel electrode and the common electrode are provided on the TFT substrate and the CF substrate in a same manner, the pixel electrode on the TFT substrate and the pixel electrode on the CF substrate oppose to each other and are applied with a same voltage signal, and the common electrode on the TFT substrate and the common electrode on the CF substrate oppose to each other and are applied with a same voltage signal.Type: ApplicationFiled: July 18, 2012Publication date: May 16, 2013Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Guangkui Qin
-
Patent number: 8436955Abstract: 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: GrantFiled: February 25, 2011Date of Patent: May 7, 2013Assignee: 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
-
Publication number: 20130100368Abstract: A liquid crystal display device includes a first insulating layer which sits on an end portion of a first transparent electrode, a gate electrode under the first insulating layer, a semiconductor layer on the first insulating layer, a first wiring which is formed so as to reach the first transparent electrode thereon from the semiconductor layer and is electrically connected to the first transparent electrode, a second wiring which is pulled out from the upper part of the semiconductor layer with an interval from the first wiring, a second insulating layer which covers the first wiring, the second wiring, the semiconductor layer, and the second insulating layer which covers the first transparent electrode, a second transparent electrode which is formed on the second insulating layer, and a liquid crystal layer which is arranged on the second transparent electrode.Type: ApplicationFiled: October 25, 2012Publication date: April 25, 2013Applicant: JAPAN DISPLAY EAST INC.Inventor: Japan Display East Inc.
-
Publication number: 20130100369Abstract: A liquid crystal compound with branched alkyl or branched alkenyl as represented by formula (1), a liquid crystal medium (a liquid crystal composition or a polymer/liquid crystal composite material) containing the liquid crystal compound, and an optical element containing the liquid crystal medium are described. In formula (1), R1 is branched alkyl of C3-20 or branched alkenyl of C3-20. The ring A1, A2, A3, A4 or A5 is 1,4-phenylene or 1,3-dioxane-2,5-diyl, for example. Z1, Z2, Z3 and Z4 are independently a single bond or C1-4 alkylene, for example. Y1 is fluorine, for example, m, n and p are independently 0 or 1, and 1?m+n+p?3.Type: ApplicationFiled: June 15, 2011Publication date: April 25, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Kouki Sagou, Yasuhiro Haseba
-
Patent number: 8427623Abstract: A thin film transistor array panel including a display area having a gate line, a data line insulated from and intersecting the gate line, a thin film transistor connected to the gate line and the data line, and a pixel electrode connected to the thin film transistor, and a peripheral area formed on the circumference of the display area, according to an exemplary embodiment of the present invention, includes: a driving signal line formed with the same layer as the gate line in the peripheral area and receiving an external signal; a connection signal line formed with the same layer as the data line in the peripheral area; a disconnection prevention member overlapping the side surface of the connection signal line on the connection signal line; and a connection assistance member formed on the disconnection prevention member and connecting the driving signal line and the connection signal line.Type: GrantFiled: June 16, 2010Date of Patent: April 23, 2013Assignee: Samsung Display Co., Ltd.Inventors: Se-Hwan Yu, Hyang-Shik Kong, Su-Hyoung Kang
-
Publication number: 20130093972Abstract: An object of the present invention is to eliminate COG irregularities around a display area caused by distortion of a glass substrate generated when IC chips are connected by a COG method in a liquid crystal display device. A liquid crystal display panel configured using an opposed substrate and a TFT substrate and a backlight are accommodated using an upper frame and a lower frame. IC chips are connected to an end portion of the TFT substrate of the liquid crystal display panel via ACFs by the COG method. Protrusions formed at the upper frame are in contact with the both sides of each IC chip, and the distortion of the TFT substrate generated by the COG method is eliminated by the protrusions. The TFT substrate can be flattened by eliminating the distortion, and the COG irregularities around the display area can be suppressed.Type: ApplicationFiled: October 16, 2012Publication date: April 18, 2013Applicant: JAPAN DISPLAY EAST INC.Inventor: JAPAN DISPLAY EAST INC.
-
Patent number: 8421940Abstract: A display device includes a TFT substrate in which a plurality of first TFT elements each having an active layer of an amorphous semiconductor and a plurality of second TFT elements each having an active layer of a polycrystalline semiconductor are disposed on a surface of an insulating substrate, wherein the first TFT element and the second TFT element each have a structure with a gate electrode, a gate insulating film, and the active layer stacked in this order on the surface of the insulating substrate and a source electrode and a drain electrode both connected to the active layer via a contact layer above the active layer, and the active layer of the second TFT element has a thickness of more than 60 nm in a position where the contact layer is stacked.Type: GrantFiled: March 17, 2009Date of Patent: April 16, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takeshi Noda, Takuo Kaitoh, Hidekazu Miyake, Takahiro Kamo
-
Patent number: 8421938Abstract: A pixel array is located on a substrate and includes a plurality of pixel sets. Each of the pixel sets includes a first scan line, a second scan line, a data line, a data signal transmission line, a first pixel unit, and a second pixel unit. The data line is not parallel to the first and the second scan lines. The data signal transmission line is disposed parallel to the first and the second scan lines and electrically connected to the data line. Distance between the first and the second scan lines is smaller than distance between the data signal transmission line and one of the first and the second scan lines. The first pixel unit is electrically connected to the first scan line and the data line. The second pixel unit is electrically connected to the second scan line and the data line.Type: GrantFiled: May 27, 2010Date of Patent: April 16, 2013Assignee: Au Optronics CorporationInventors: Yi-Hui Li, Yu-Cheng Chen, Tsan-Chun Wang, Chih-Hung Lin, Tung-Huang Chen
-
Publication number: 20130088658Abstract: A liquid crystal compound and a liquid crystal medium are described. The liquid crystal compound is stable to heat and light and has a large dielectric anisotropy and a large optical anisotropy. The liquid crystal medium has a wide temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase. The liquid crystal compound has 4 or 5 benzene rings, one of which is a chlorofluorobenzene ring. The liquid crystal medium is characterized in containing the liquid crystal compound and a chiral dopant and exhibiting an optically isotropic liquid crystal phase.Type: ApplicationFiled: November 30, 2012Publication date: April 11, 2013Inventor: YASUHIRO HASEBA
-
Publication number: 20130083265Abstract: An active matrix substrate (30a) includes a plurality of switching elements (5a), a first protective insulating film (20a) provided on the plurality of switching elements (5a), a transparent conductive layer (21b) provided on the first protective insulating film (20a), a second protective insulating film (22a) provided on the transparent conductive layer (21b), and a plurality of pixel electrodes (23a) on the second protective insulating film (22a), wherein a groove (G) is formed in the second protective insulating film (22a) along a vicinity of a corresponding one of the plurality of pixel electrodes (23a) so that part of the first protective insulating film (20a) is exposed, and the transparent conductive layer (21b) is provided along the groove (G) of the second protective insulating film (22a) to be exposed from a sidewall (W) of the groove (G) while being recessed from the sidewall (W) of the groove (G).Type: ApplicationFiled: May 20, 2011Publication date: April 4, 2013Inventor: Katsunori Misaki
-
Publication number: 20130083264Abstract: In a substrate for a liquid crystal display device, a black matrix, a transparent electroconductive film and a resin layer are formed above a transparent substrate. The black matrix is a light-shielding layer in which light-shielding pigments are dispersed in a resin, and includes openings. The resin layer is formed above the transparent substrate including the black matrix and the transparent electroconductive film, forms a convex part above the black matrix, and forms, in a region that passes through a center of each of the openings in the black matrix, a concave part.Type: ApplicationFiled: November 27, 2012Publication date: April 4, 2013Applicant: TOPPAN PRINTING CO., LTD.Inventor: TOPPAN PRINTING CO., LTD.
-
Patent number: 8411217Abstract: An active device array substrate including a substrate, a pixel array, pads, first switching devices, and second switching devices is provided. The pixel array is disposed on a display region of the substrate. The pads, the first and the second switching devices are disposed on a peripheral circuit region of the substrate. The pads and the pixel array are electrically connected. The first and the second switching devices are at the outside of the pads. Each first switching device is electrically connected to one of the pads and has a source, a drain, and a gate electrically connected to the source and the pad. Each second switching device is electrically connected to two adjacent first switching devices and has a gate, a source, and a drain. The source and the drain are electrically connected to the drain and the source of the adjacent first switching device, respectively.Type: GrantFiled: June 24, 2008Date of Patent: April 2, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Wen-Hsiung Liu, Chien-Kuo He
-
Patent number: 8411240Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, scanning lines, signal lines, pixel switches, first electrodes, a scanning line drive circuit, a second electrode, a voltage supply wiring, a control mechanism, a first switching mechanism, a second switching mechanism, and an output timing switching mechanism. The output timing switching mechanism is configured to simultaneously output a second scanning signal of switching the pixel switch into conductive state to the scanning lines, based on the control signal.Type: GrantFiled: February 17, 2012Date of Patent: April 2, 2013Assignee: Japan Display Central Inc.Inventors: Kenji Harada, Takamitsu Fujimoto, Takahiro Oonuma
-
Patent number: 8411000Abstract: A display device includes a light emitting diode, and first and second driving transistors connected between a driving voltage and the light emitting diode to supply driving electric current to the light emitting diode. A control voltage or control voltages differentiated in polarity from each other is/are applied to control terminals of the first and the second driving transistors. The first driving transistor has a control electrode located below a semiconductor layer of the light emitting diode while the second driving transistor has a control electrode located over the semiconductor layer. Two driving transistors are formed at each pixel, and an area occupied thereof within the pixel is reduced. Control voltages differentiated in polarity from each other are applied to the respective driving transistors, substantially preventing deterioration of the driving transistors.Type: GrantFiled: August 12, 2009Date of Patent: April 2, 2013Assignee: Samsung Display Co., Ltd.Inventors: Bong-Hyun You, Min-Koo Han
-
Patent number: 8411216Abstract: Each pixel region includes first and second pixel electrodes (17a, 17b) and first and second capacitor electrodes (67x, 67y) positioned on a layer where a data signal line (15) exists. The first and second capacitor electrodes are aligned in a row direction in such a manner as to overlap a retention capacitor line (18) via a first insulating film and to overlap the second pixel electrode (17b) via a second insulating film. A drain electrode (9) of a transistor (12), the first pixel electrode (17a), a first connection line (38) connected with the first capacitor electrode (67x), and the second connection line connected with the second capacitor electrode (67y) are electrically connected with one another. A part of the first connection line (38) and a part of the second connection line (39) do not overlap the retention capacitor line (18).Type: GrantFiled: July 15, 2009Date of Patent: April 2, 2013Assignee: Sharp Kabushiki KaishaInventor: Toshihide Tsubata
-
Publication number: 20130077009Abstract: Provided is a display panel using polymer network liquid crystal in which a monomer unreacted region is reduced and a thin-film transistor can be prevented from being irradiated with light energy. In the display panel, a black matrix (22a) is provided as an element having a light-shielding property in a first substrate (2a), a pixel electrode (37) and a thin-film transistor (32) serving as a switching element for driving the pixel electrode (37) are provided in a second substrate (3a), polymer network liquid crystal (11) is filled between the first substrate (2a) and the second substrate (3a), a cover portion (221) that is part of the black matrix (22a) provided in the first substrate (2a) faces the thin-film transistor (32) provided in the second substrate (3a), and the outer periphery of the cover portion (221) is located outside the outer periphery of a channel region by a specified dimension or more.Type: ApplicationFiled: April 21, 2011Publication date: March 28, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Isao Asako, Yukinori Nakagawa, Hiromi Nishino, Shinji Shimada
-
Publication number: 20130077008Abstract: A liquid crystal display in which the common voltage line is disposed directly on or directly under the common electrode directly contacts the common electrode such that a signal delay of the common voltage line may be reduced and simultaneously a reduction in the aperture ratio of the liquid crystal display may be prevented.Type: ApplicationFiled: July 25, 2012Publication date: March 28, 2013Applicant: Samsung Display Co., Ltd.Inventors: Sung-Hoon Kim, Joo Seok Yeom, Kyu Wan Ryu, Jeong Soo Choi
-
Patent number: 8405082Abstract: A thin film transistor array substrate includes a gate line disposed on a substrate, the gate line comprising a gate electrode including a lower film and an upper film thicker than the lower film, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, an ohmic contact layer formed on the semiconductor layer, a data line electrically connected to a source electrode and a drain electrode formed on the ohmic contact layer, the lower film of the gate line is in contact with the gate insulating layer at a crossing portion of the gate line and the data line and the heights of the source electrode and the drain electrode are substantially the same as or less than a height of the semiconductor layer.Type: GrantFiled: February 6, 2012Date of Patent: March 26, 2013Assignee: Samsung Display Co., Ltd.Inventor: Dong-Gyu Kim
-
Patent number: 8405091Abstract: A display device includes a metal conductive layer formed on a substrate, a transparent electrode film formed on the substrate and joined to the metal conductive layer and an interlayer insulating film isolating the metal conductive layer and the transparent conductive film. The metal conductive layer has a lower aluminum layer made of aluminum or aluminum alloy, an intermediate impurity containing layer made of aluminum or aluminum alloy containing impurities and formed on a substantially entire upper surface of the lower aluminum layer and an upper aluminum layer made of aluminum or aluminum alloy and formed on the intermediate impurity containing layer. In the interlayer insulating film and the upper aluminum layer, a contact hole penetrates therethrough and locally exposes the intermediate impurity containing layer, and the transparent electrode film is joined to the metal conductive layer in the intermediate impurity containing layer exposed from the contact hole.Type: GrantFiled: February 4, 2008Date of Patent: March 26, 2013Assignee: Mitsubishi Electric CorporationInventors: Takumi Nakahata, Kazunori Inoue, Koji Oda, Naoki Nakagawa, Nobuaki Ishiga
-
Patent number: 8405086Abstract: The present invention provides a pixel structure of a display panel and a method for manufacturing the same. The method comprises the following steps: forming a first transistor and a second transistor on a substrate, wherein the first transistor is connected between the second transistor and a data line, wherein the second transistor is connected to a first gate line and a second gate line; and forming a pixel electrode, wherein the pixel electrode is connected to the first transistor. The present invention can improve a deformation problem of signal waveforms due to delay.Type: GrantFiled: November 4, 2011Date of Patent: March 26, 2013Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Hung-lung Hou
-
Patent number: 8405799Abstract: An object of the present invention is to obtain a polymer-stabilized liquid crystal composition which can suppress dependency of a driving voltage on a temperature by decreasing the driving voltage. To a low-molecular liquid crystal compound, a chiral compound, and a specific acrylate and a polymerizable liquid crystal compound as polymerizable acrylate compounds are added, to prepare a polymer-stabilized liquid crystal composition. By subjecting the polymer-stabilized liquid crystal composition to ultraviolet exposure while maintaining a desired alignment state to form a polymer chain in a liquid crystal phase, a polymer-stabilized liquid crystal display device containing a low-molecular liquid crystal in a stabilized alignment state is obtained.Type: GrantFiled: March 25, 2008Date of Patent: March 26, 2013Assignee: DIC CorporationInventors: Toru Fujisawa, Kiyofumi Takeuchi, Kazuaki Hatsusaka, Isa Nishiyama, Shunsuke Kobayashi
-
Patent number: 8400601Abstract: A flat panel display device and a method of manufacturing the flat panel display device are disclosed. In one embodiment, the flat panel display device includes: i) a first substrate, ii) an active layer formed over the first substrate, wherein the active layer comprises a source region, a drain region, and a channel region, iii) a gate insulating layer formed on the active layer, iv) a gate electrode formed on the gate insulating layer and over the channel region of the active layer and v) a first interlayer insulating film formed on the gate insulating layer and the gate electrode.Type: GrantFiled: November 30, 2010Date of Patent: March 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jong-Hyun Park, Chun-Gi You, Sun Park, Yul-Kyu Lee, Jin-Hee Kang
-
Patent number: 8400383Abstract: A liquid crystal display is disclosed.Type: GrantFiled: November 24, 2008Date of Patent: March 19, 2013Assignee: LG Display Co., Ltd.Inventors: Sukho Cho, Bumsik Kim
-
Patent number: 8400577Abstract: Herein disclosed a display apparatus including: a pixel array having a matrix of pixel circuits each including respective electrooptical elements for determining a display brightness level and respective drive circuits for driving the electrooptical elements; wherein adjacent two of the pixel circuits are paired with each other, and each of the drive circuits of the adjacent two pixel circuits includes at least one transistor having a low-concentration source/drain region or an offset region of an offset gate structure, the electrooptical elements and the drive circuits of the adjacent two pixel circuits being laid out such that a line interconnecting a drain region and a source region of the at least one transistor extends parallel to a direction of pixel columns of the pixel circuits of the pixel array.Type: GrantFiled: March 13, 2012Date of Patent: March 19, 2013Assignee: Sony CorporationInventors: Mitsuru Asano, Seiichiro Jinta, Masatsugu Tomida, Hiroshi Fujimura
-
Publication number: 20130063672Abstract: A method of manufacturing an LCD device includes providing a lower substrate including a first substrate on which a thin film transistor, a pixel electrode, and a common electrode are formed, and forming a first light alignment layer on the first substrate that is light aligned in a ultraviolet (UV) irradiation process; providing an upper substrate including a second substrate on which a color filter and a black matrix are formed, and forming a second light alignment layer on the second substrate that is light aligned in the UV irradiation process; providing a light polymerization compound between the lower substrate and upper substrate; and forming an alignment assistant layer between a liquid crystal layer and the first and second light alignment layers by performing a front UV irradiation process on the upper substrate and lower substrate which are coupled to each other with the liquid crystal layer therebetween.Type: ApplicationFiled: August 31, 2012Publication date: March 14, 2013Inventors: Dong Guk KIM, Kazuhiko Tamai
-
Patent number: 8395739Abstract: An in-plane-switching mode liquid crystal display device is disclosed. The LCD device includes: first and second substrates opposite to each other; a liquid crystal layer interposed between the first and second substrates; a passivation film formed on the first substrate in which a thin film transistor is disposed; pixel and common electrodes arranged alternately with each other; and a first alignment film formed on the pixel and common electrodes. The liquid crystal layer and the passivation film are formed to have lower non-resistances than that of the first alignment film.Type: GrantFiled: December 16, 2009Date of Patent: March 12, 2013Assignee: LG Display Co., Ltd.Inventors: Han Shin Hwang, Joung Won Woo, Dong Guk Kim, Woo Keun Lee, Han Jin Ahn
-
Patent number: 8395160Abstract: An organic light emitting display apparatus and a method of manufacturing the organic light emitting display apparatus, whereby the manufacturing process is simplified and the electric characteristics of the organic light emitting display apparatus are improved. The organic light emitting display apparatus includes: a gate electrode that includes a first conductive layer including ITO, a second conductive layer on the first conductive layer, a third conductive layer on the second conductive layer and including ITO, and a fourth conductive layer on the third conductive layer and including IZO or AZO; and a pixel electrode formed in the same layer level as the gate electrode and including a first electrode layer that includes ITO, a second electrode layer on the first electrode layer, a third electrode layer on the second electrode layer and including ITO, and a fourth electrode layer on the third electrode layer and including IZO or AZO.Type: GrantFiled: November 10, 2010Date of Patent: March 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sun Park, Chun-Gi You, Jong-Hyun Park, Jin-Hee Kang, Yul-Kyu Lee
-
Publication number: 20130057792Abstract: The present invention provides a liquid crystal display device which is excellent in uniformity of visual angles even when divided alignment regions are distorted due to an external pressure such as pressing pressure. The present invention provides a liquid crystal display device comprising: a pair of substrates; and a liquid crystal layer between the substrates, wherein, as viewed in a plan view of a main surface of one of the substrates, the liquid crystal display device has an alignment division pattern in which each pixel is divided into four or more alignment regions, and each set of a plurality of pixels constitutes one unit, and each of the units of the alignment division pattern comprises, in at least one pixel, an alignment region whose alignment direction is different from alignment directions of alignment regions which are located at same vertical and horizontal positions in the other pixels.Type: ApplicationFiled: January 18, 2011Publication date: March 7, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Shinji Shimada
-
Publication number: 20130057793Abstract: In each pixel, an insulating film covering each oxide semiconductor layer is placed between an upper electrode of a storage capacitance element and two source wiring lines that have the upper electrode therebetween. The upper electrode is formed of a conductor layer portion that extends from the oxide semiconductor layer and that has a low resistance, and is thereby integrally formed with the oxide semiconductor layer. Both of the source wiring lines are provided on the insulating film and are connected to the oxide semiconductor layer through contact holes formed in the insulating film.Type: ApplicationFiled: February 1, 2011Publication date: March 7, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Seiichi Uchida
-
Patent number: 8390752Abstract: Provided are a display device and a fabricating method thereof. The display device includes a substrate, a gate line, a common line, common electrodes, an insulating layer, a data line, a drain electrode, and pixel electrodes. The gate line is disposed in a first direction. The common line is disposed substantially parallel to the gate line. The common electrodes branch from the common line. The insulating layer covers the gate line, the common line, and the common electrodes. The channel patterns are disposed on the insulating layer to correspond to the gate electrode. The data line is disposed in a second direction. The drain electrode is electrically connected with the channel pattern. The pixel electrodes are formed of an opaque metal. Thus, the display device may improve contrast ratio.Type: GrantFiled: April 18, 2008Date of Patent: March 5, 2013Assignee: LG Display Co., Ltd.Inventors: Joon Young Yang, Soo Pool Kim