With Supplemental Capacitor Patents (Class 349/38)
-
Patent number: 9740070Abstract: The present invention has a pixel which includes a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.Type: GrantFiled: June 21, 2016Date of Patent: August 22, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
-
Patent number: 9690139Abstract: A display panel comprises a first electrode on the first substrate and a first alignment layer on the first electrode. The first alignment layer is disposed on the first electrode and comprises a first alignment area and a second alignment area. An alignment direction of the first alignment area is opposite to an alignment direction of the second alignment area. The first electrode is disposed in the first alignment area and comprises a first trunk electrode and at least two first branch electrodes respectively connected to two sides of the first trunk electrode. At least one of the first branch electrodes comprises a first distal end and a first connection end connected to the first trunk electrode. An included angle between the extending direction from the first distal end to the first connection end and the alignment direction of the first alignment area is between 50° and 80°.Type: GrantFiled: February 19, 2016Date of Patent: June 27, 2017Assignee: INNOLUX CORPORATIONInventors: Bo-Chin Tsuei, Jian-Cheng Chen
-
Patent number: 9664956Abstract: The inventive concept relates to a liquid crystal display and a manufacturing method thereof. More particularly, the inventive concept relates to a liquid crystal display including one substrate and a manufacturing method thereof. A liquid crystal display according to an exemplary embodiment of the inventive concept includes: a thin film transistor; a passivation layer; a pixel electrode; an opposing electrode disposed on the pixel electrode and spaced apart from the pixel electrode by a microcavity interposed therebetween; a roof layer disposed on the opposing electrode and overlapping the pixel electrode, wherein the roof layer and the opposing electrode form a valley exposing an injection hole of the microcavity, a buffer zone disposed between the light transmitting area and the valley and a light blocking member overlapping the valley. A height of the microcavity in the buffer zone is higher than a height of the microcavity in the light transmitting area.Type: GrantFiled: July 10, 2014Date of Patent: May 30, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jung Suk Bang, Seon Uk Lee
-
Patent number: 9647010Abstract: A semiconductor device with high aperture ratio is provided. The semiconductor device includes a transistor and a capacitor having a pair of electrodes. An oxide semiconductor layer formed over the same insulating surface is used for a channel formation region of the transistor and one of the electrodes of the capacitor. The other electrode of the capacitor is a transparent conductive film. One electrode of the capacitor is electrically connected to a wiring formed over the insulating surface over which a source electrode or a drain electrode of the transistor is provided, and the other electrode of the capacitor is electrically connected to one of the source electrode and the drain electrode of the transistor.Type: GrantFiled: December 27, 2013Date of Patent: May 9, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yuta Endo
-
Patent number: 9618793Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight unit providing light to the liquid crystal display panel. The liquid crystal display panel includes a first substrate on which a thin film transistor is disposed, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a first polarizer disposed on the second substrate having a plurality of metal patterns spaced apart from each other by an interval. The backlight unit faces the second substrate.Type: GrantFiled: August 2, 2013Date of Patent: April 11, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jung-Gun Nam, Kyoung-Tai Han, Dae-Young Lee, Dae-Hwan Jang, Gug-Rae Jo, Atsushi Takakuwa
-
Patent number: 9612484Abstract: A liquid crystal display includes: a first insulating substrate; a plurality of color filters positioned on the first insulating substrate; a light blocking member positioned on the plurality of color filters; a second insulating substrate facing the first insulating substrate; and a spacer positioned between the first insulating substrate and the second insulating substrate, wherein the spacer includes a main column spacer and first and second sub-column spacers, and the first and second sub-column spacers are positioned at both sides of the main column spacer.Type: GrantFiled: December 7, 2015Date of Patent: April 4, 2017Assignee: Samsung Display Co., Ltd.Inventor: Chang Hun Kwak
-
Patent number: 9606406Abstract: A liquid crystal display includes: a first substrate, a second substrate facing the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate and including liquid crystal molecules, a gate line positioned on the first substrate, a data line positioned on the first substrate and crossing the gate line, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a third thin film transistor connected to the gate line and the second thin film transistor, a reference voltage line connected to the third thin film transistor, and a pixel electrode including a first subpixel electrode connected to the first thin film transistor and a second subpixel electrode connected to the second thin film transistor.Type: GrantFiled: May 11, 2016Date of Patent: March 28, 2017Assignee: Samsung Display Co., Ltd.Inventors: Su-Jeong Kim, Ki-Chul Shin, Hoon Kim, Hyung-Guel Kim, Joo-Seok Yeom, Jae-Jin Song, Ho-Kil Oh, Yoon-Jang Kim, Jae-Hoon Jung, Kwang-Chul Jung
-
Patent number: 9599848Abstract: An exemplary display device providing touch function includes scanning lines and data lines thereby defining lots of sub-pixel units. Each sub-pixel unit includes a pixel electrode, a storage capacitor, a compensation capacitor connected between the pixel electrode and a corresponding scanning line. In each pixel unit defined by n number adjacent sub-pixel units, both of a ratio of capacitance values between the storage capacitors formed in the corresponding sub-pixel units and a ratio of capacitance values between the corresponding compensation capacitors are respectively substantially equal to a ratio of areas between the corresponding pixel electrodes.Type: GrantFiled: June 11, 2014Date of Patent: March 21, 2017Assignee: INNOLUX CORPORATIONInventors: Po-Sheng Shih, Po-Yang Chen
-
Patent number: 9570023Abstract: A display panel including a plurality of pixels. A first pixel among the plurality of pixels includes a first subpixel, which further includes a first subpixel electrode, a first switching element configured to apply a data voltage to the first subpixel electrode, and a second switching element applying a boosting voltage to the first subpixel electrode. The first pixel further includes a second subpixel including a second subpixel electrode and a third switching element applying the data voltage to the low pixel electrode. Accordingly, display quality and reliability of the display panel may be improved.Type: GrantFiled: March 22, 2016Date of Patent: February 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Youn-Hak Jeong, Gak-Seok Lee
-
Patent number: 9553113Abstract: A pixel unit includes a scan line, data lines, first and second pixel structures, first and second common electrode lines, and a common connecting portion. The first pixel structure includes a first switching element, a first main pixel electrode, a first sub pixel electrode, and a first active element. The second pixel structure includes a second switching element, a second main pixel electrode, a second sub pixel electrode, and a second active element. The first main and sub pixel electrodes and the first active element are electrically connected to the first switching element. The second main and sub pixel electrodes and the second active element are electrically connected to the second switching element. The first and second common electrode lines are separated at a position where the scan line passes. The common connecting portion electrically connects the first common electrode line and the second common electrode line.Type: GrantFiled: June 16, 2016Date of Patent: January 24, 2017Assignee: AU OPTRONICS CORPORATIONInventors: Hung-Che Lin, Sheng-Ju Ho, Shang-Jie Wu
-
Patent number: 9551912Abstract: The present invention provides a high quality liquid crystal display pixel circuit, and a plurality of sub pixels arranged in array, and each sub pixel is divided into a main area (Main) and a sub area (Sub), and one data signal line, a voltage dividing unit (10) and a routing are provided in accordance with sub pixels of each column; a Nth data line (D(N)) is electrically coupled to the main areas (Main) of the sub pixels of Nth column and provides a main data signal voltage to the same, and the corresponding Nth routing (L(N)) is led out from the voltage dividing unit (10), and is electrically coupled to the sub areas (Sub) of the sub pixels of the next column, N+1 column and provides a sub data signal voltage acquired by performing voltage dividing to the main data signal voltage with the voltage dividing unit (10) to the same; polarities of the main data signal voltage provided by the Nth data signal line (D(N)) and the main data signal voltage provided by the next N+1th data signal line (D(N+1)) are oppoType: GrantFiled: June 25, 2015Date of Patent: January 24, 2017Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Hongyuan Xu
-
Patent number: 9547211Abstract: A liquid crystal display is provided. The display includes: gate lines applied with a gate signal; data lines applied with a data signal; reference voltage lines respectively applied with first and second reference voltage having different polarities; first, second, and third subpixel electrodes included in one pixel area; a first switching element connected to the first gate line, the first data line, and the first subpixel electrode; a second switching element connected to the first gate line, the first data line, and the second subpixel electrode; a third switching element connected to the first or second gate line, the first or second data line, and the third subpixel electrode; a fourth switching element connected to the first gate line, the first reference voltage line, and the first subpixel electrode; and a fifth switching element connected to the first gate line, the second reference voltage line, and the second subpixel electrode.Type: GrantFiled: April 22, 2014Date of Patent: January 17, 2017Assignee: Samsung Display Co., Ltd.Inventors: Youn Hak Jeong, Hong Min Yoon, Ho Jun Lee, Seung-Kyu Lee
-
Patent number: 9541810Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a common electrode, a pixel electrode which includes an electrode portion which forms a slit opposed to the common electrode, a second substrate, and a liquid crystal layer formed of a liquid crystal material having a negative dielectric constant anisotropy. The slit and the electrode portion are arranged in the first direction and extend in the second direction. L/S is in a range of between 0.5 and 0.9 when a width of the slit in the first direction is S and a width of the electrode portion in the first direction is L.Type: GrantFiled: June 20, 2013Date of Patent: January 10, 2017Assignee: Japan Display Inc.Inventor: Youichi Asakawa
-
Patent number: 9536930Abstract: In a display device including an device substrate arranged with a plurality of pixels arranged with a light emitting device, a color filter layer with different transmission bands corresponding to each of the pixels, and a color filter substrate arranged with an overcoat layer above the color filter layer, by arranging a first light shielding layer arranged corresponding to a matrix of pixels and a second light shielding layer wider than the first light shielding layer and separated from the first light shielding layer and on a side close to a pixel, light emitted in a diagonal direction leaking to an adjacent pixel enters the second light shielding layer and by increasing the length of a light path of the incident light, the light is absorbed and attenuated by the second light shielding layer and improvements in viewing angle characteristics are achieved without decreasing the aperture ratio of a pixel.Type: GrantFiled: September 2, 2014Date of Patent: January 3, 2017Assignee: Japan Display Inc.Inventors: Tohru Sasaki, Toshihiro Sato, Kazuhiro Odaka
-
Patent number: 9536484Abstract: A liquid crystal array substrate includes a number of pixels, each pixel includes a main region, a first sub-region, and a second sub-region. The main region includes a first thin film transistor (TFT), the first sub-region comprises a second TFT, and the second sub-region comprises a third TFT. Gates of the first TFT, the second TFT, and the third TFT of each pixel are connected to a first scan line, a source of the first TFT is connected to a first data line, a drain of the first TFT is connected to one corresponding pixel electrode; sources of the second TFT and the third TFT are connected to a second data line, drains of the second TFT and the third TFT are respectively connected to corresponding pixel electrodes.Type: GrantFiled: June 30, 2013Date of Patent: January 3, 2017Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Je Hao Hsu, Jingfeng Xue, Xiaohui Yao
-
Patent number: 9500898Abstract: A liquid crystal display according to an embodiment of the present invention includes: a first substrate; a plurality of color filters formed on the first substrate and arranged in a matrix with an island shape; a plurality of pixel electrodes formed on the color filters; and a capacitor disposed between neighboring color filters in a column direction among the color filters, wherein two terminals forming the capacitor are disposed at a portion outside a position overlapping the color filters.Type: GrantFiled: June 20, 2013Date of Patent: November 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Yoon-Jang Kim, Dong-Gyu Kim, Eun Cho, Yeong-Keun Kwon, Kee-Bum Park
-
Patent number: 9495030Abstract: Discussed is an LCD device including a touch screen which reduces the influence of noise applied to the touch screen by driving of a liquid crystal panel and thus leads to enhancement of the touch sensing performance. The LCD device includes a liquid crystal panel, a plurality of first touch electrodes, an insulation unit, a tempered glass, and a plurality of second touch electrodes. The liquid crystal panel includes a lower substrate and an upper substrate. The first touch electrodes are formed on the upper substrate for detecting a touch point in a first direction. The insulation unit is formed on the first touch electrodes. The tempered glass is formed on the insulation unit. The second touch electrodes are formed at a lower surface of the tempered glass for detecting a touch point in a second direction.Type: GrantFiled: December 6, 2011Date of Patent: November 15, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Jae Hun Shin, Byung Koo Kang, Moon Bong Song, Shi Cheol Song
-
Patent number: 9488880Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: GrantFiled: November 16, 2015Date of Patent: November 8, 2016Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshiaki Nakayoshi, Kazuhiko Yanagawa
-
Patent number: 9490274Abstract: A thin film transistor array panel includes a first substrate; a gate line and a data line on the first substrate; a storage electrode line on the first substrate where a constant voltage is applied thereto; a first thin film transistor and a second thin film transistor which are connected to the gate line and the data line; a third thin film transistor which is connected to the gate line, the second thin film transistor and the storage electrode line; a first subpixel electrode which is connected to the first thin film transistor; and a second subpixel electrode which is connected to the second thin film transistor.Type: GrantFiled: April 30, 2015Date of Patent: November 8, 2016Inventors: Hyung Jun Park, Kyung-Ho Park, Woo-Jung Shin, Si Hyun Ahn, Dong-Hyun Yoo
-
Patent number: 9472526Abstract: A semiconductor device includes a main structure, active bumps and dummy bumps which are provided over a surface of the main structure. The active bumps are arranged in first to n-th rows. The active bumps positioned in each row are arrayed in a first direction with a predetermined first pitch. The first to n-th rows of the active bumps are arrayed in a second direction perpendicular to the first direction. For j being any integer from one to n?1, a (j+1)-th row are shifted in the second direction from a j-th row of the active bumps by a second pitch and shifted in the first direction from the j-th row of the active bumps by a predetermined sub-pitch. The dummy bumps are arrayed in the first direction with the first pitch, and the length of each of the dummy bumps in the second direction is longer than the second pitch.Type: GrantFiled: March 30, 2015Date of Patent: October 18, 2016Assignee: Synaptics Japan GKInventors: Shinya Suzuki, Kiichi Makuta
-
Patent number: 9459503Abstract: A liquid crystal display device is provided with a thin film transistor which includes a gate electrode film that is provided in a first electrode layer located over a first insulating layer, a semiconductor film that is disposed over the gate electrode film via a second insulating layer, a drain electrode and a source electrode that are provided in a second electrode layer located over the semiconductor film and are in contact with an upper surface of the semiconductor film, and a light blocking film that is disposed under the first insulating layer. At least a part thereof overlaps the semiconductor film and the gate electrode film in a plan view. One of the drain electrode and the source electrode is connected to a gate line, and the light blocking film is electrically connected to the source electrode.Type: GrantFiled: June 24, 2015Date of Patent: October 4, 2016Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Motoharu Miyamoto, Masahiro Hoshiba
-
Patent number: 9459480Abstract: Provided is a display device that includes: a substrate on which a gate line, a data line, and a thin film transistor are positioned; an insulating layer positioned on the thin film transistor; a pixel electrode positioned on the insulating layer and connected to the thin film transistor; a roof layer that overlaps the substrate; a common electrode that includes a first portion and a second portion; a liquid crystal layer positioned in a microcavity that overlaps with the pixel electrode; and a separating member that is positioned on the insulating layer and overlaps the data line lengthwise. The first portion of the common electrode is positioned between the microcavity and the roof layer, and the second portion of the common electrode is positioned between the separating member and the roof layer.Type: GrantFiled: September 3, 2014Date of Patent: October 4, 2016Assignee: Samsung Display Co., Ltd.Inventor: Eun Hee Han
-
Patent number: 9412767Abstract: A liquid crystal display device (10) includes: gate wiring (501) formed on a substrate (500) and along a first direction; drain wiring (702) formed on the substrate (500) and along a second direction that is different from the first direction; a common electrode (900) formed so as to cover the drain wiring (702) through intermediation of an insulating film (800); and common wiring (901) formed on the common electrode (900) and along the drain wiring (702). The common wiring (901) is formed so that at least a part of the common wiring (901) overlaps with a region in which the drain wiring (702) is formed.Type: GrantFiled: June 25, 2015Date of Patent: August 9, 2016Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takao Takano, Yukio Tahara
-
Patent number: 9389515Abstract: A method for forming a pattern includes forming a photosensitive film by coating a photosensitive resin composition on a substrate, exposing the photosensitive film to light through a mask that includes a light transmission region and a non-light transmission region, coating a developing solution on the photosensitive film, and forming a photosensitive film pattern by baking the photosensitive film, wherein the photosensitive resin composition includes an alkali soluble base resin, a photoacid generator and a photoactive compound.Type: GrantFiled: April 2, 2015Date of Patent: July 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jeong Won Kim, Jin Ho Ju, Jong Kwang Lee, Min Kang, Tae Gyun Kim
-
Patent number: 9391129Abstract: A display device comprising including a plurality of pixels arranged in the shape of a matrix above a substrate, and a plurality of thin film transistors arranged corresponding to each of the plurality of pixel having an organic EL layer, the device comprising; a planarized film covering the thin film transistor and a wire connected with the thin film transistor; a reflecting layer formed above the planarized film; a light path length expanded layer covering the reflecting layer; and a pixel transparent electrode formed above the light path length expanded layer.Type: GrantFiled: May 13, 2014Date of Patent: July 12, 2016Assignee: Japan Display Inc.Inventors: Naoki Tokuda, Mitsuhide Miyamoto
-
Patent number: 9383602Abstract: A liquid crystal layer is disposed between an element substrate and an opposite substrate and a pixel electrode being light-reflective is disposed between an element substrate and a liquid crystal layer, and a planarization layer that is light-transmissive, a first light-transmissive film that has a high refractive index than a refractive index of the planarization layer, a second light-transmissive film that has a lower refractive index than the refractive index of the first light-transmissive film, and a third light-transmissive film that is electrically conductive and has a higher refractive index than the refractive index of the second light-transmissive film are disposed between the opposite substrate and the liquid crystal layer from the opposite substrate side in this order.Type: GrantFiled: October 31, 2012Date of Patent: July 5, 2016Assignee: Seiko Epson CorporationInventor: Yoshikazu Eguchi
-
Patent number: 9377660Abstract: The present invention has a pixel which includes a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.Type: GrantFiled: November 20, 2014Date of Patent: June 28, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
-
Patent number: 9360722Abstract: To improve viewing angle characteristics by varying voltage which is applied between liquid crystal elements. A liquid crystal display device in which one pixel is provided with three or more liquid crystal elements and the level of voltage which is applied is varied between the liquid crystal elements is varied. In order to vary the level of the voltage which is applied between the liquid crystal elements, an element which divides the applied voltage is provided. In order to vary the level of the applied voltage, a capacitor, a resistor, a transistor, or the like is used. Viewing angle characteristics can be improved by varying the level of the voltage which is applied between the liquid crystal elements.Type: GrantFiled: June 27, 2014Date of Patent: June 7, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
-
Patent number: 9363866Abstract: A touch switch including: at least two of operation faces provided side by side; a detection electrode provided in each of the operation faces and including a wiring pattern of an electric conductor formed on or immediately below the operation face; and a controller connected to each of the detection electrodes to perform a switching operation by detecting variations of capacitance sensed by each of the detection electrodes, the variation of capacitance being generated when a human body part is in proximity to or in contact with each of the operation faces. At least one of the detection electrodes includes a wiring pattern more sparsely formed in a vicinity area of a boundary with another operation face adjacent thereto compared to a wiring pattern of the detection electrode provided in the adjacent operation face. Therefore, detection errors or accidental operations between adjacent switches can be prevented from happening.Type: GrantFiled: September 7, 2012Date of Patent: June 7, 2016Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Yoshikatsu Nishikawa, Naoya Hanada
-
Patent number: 9354459Abstract: In a liquid crystal display device in which one pixel is divided into a plurality of sub-pixels, power consumption is reduced. A liquid crystal display device in which a pixel formation portion forming one pixel includes a first sub-pixel portion and a second sub-pixel portion is provided with a charge sharing circuit (50) for short-circuiting a CS bus line (CSL1) provided for the first sub-pixel portion and a CS bus line (CSL2) provided for the second sub-pixel portion to each other based on a short-circuit control signal (CTL). A CS voltage generating circuit (40) generates CS signals (CS1 and CS2) whose potentials change every predetermined period. The charge sharing circuit (50) short-circuits the CS bus line (CSL1) and the CS bus line (CSL2) to each other at timing at which the potentials of the CS signals (CS1 and CS2) change, based on the short-circuit control signal (CTL).Type: GrantFiled: July 26, 2012Date of Patent: May 31, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Masahiko Nakamizo, Fumikazu Shimoshikiryoh, Takamitsu Suzuki, Akifumi Hashimoto
-
Patent number: 9341906Abstract: In one embodiment, a first substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, a pixel electrode including a main pixel electrode extending in the second direction, and a first alignment film covering the pixel electrode. A second substrate includes a common electrode having a pair of main common electrodes arranged on both sides sandwiching the main pixel electrode and a second alignment film covering the common electrode. A liquid crystal layer is held between the first alignment film and the second alignment film and includes liquid crystal molecules. The liquid crystal layer is formed of materials having negative dielectric constant anisotropy, and the liquid crystal molecules are initially aligned substantially in parallel with the first direction when electric field is not impressed between the pixel electrode and the common electrode.Type: GrantFiled: July 16, 2015Date of Patent: May 17, 2016Assignee: Japan Display Inc.Inventors: Hitomi Hasegawa, Nobuko Fukuoka
-
Patent number: 9341873Abstract: A flexible display panel including a buffer layer, an active element, a pad, a display device and a signal transmission circuit is provided. The active element is located on the buffer layer. The pad is located in the buffer layer and is electrically connected to the active element. The display device is located on the active element and is electrically connected to the active element, in which the display device includes a pixel electrode, an opposite electrode and a display medium layer located therebetween. The active element and the signal transmission circuit are respectively located at a first surface and a second surface of the buffer layer, the second surface is opposite to the first surface, and the signal transmission circuit is electrically connected to the active element via the pad. A manufacturing method of a flexible display panel is also provided.Type: GrantFiled: December 5, 2013Date of Patent: May 17, 2016Assignee: Au Optronics CorporationInventors: Yung-Pei Chen, Chun-Hsiang Fang, Chih-Hung Tsai
-
Patent number: 9329442Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.Type: GrantFiled: November 3, 2015Date of Patent: May 3, 2016Assignee: Samsung Display Co., Ltd.Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
-
Patent number: 9318066Abstract: A display panel comprises a plurality of pixels. A first pixel among the plurality of pixels comprises a first subpixel which further comprises a first subpixel electrode, a first switching element configured to apply a data voltage to the first subpixel electrode, and a second switching element applying a boosting voltage to the first subpixel electrode. The first pixel further comprises a second subpixel comprising a second subpixel electrode and a third switching element applying the data voltage to the low pixel electrode. Accordingly, the display quality and the reliability of the display panel may be improved.Type: GrantFiled: August 15, 2012Date of Patent: April 19, 2016Assignee: Samsung Display Co., Ltd.Inventors: Youn-Hak Jeong, Gak-Seok Lee
-
Patent number: 9318629Abstract: Embodiments of the invention disclose a sensor and its fabrication method, the sensor comprises: a base substrate, a group of gate lines and a group of data lines arranged as crossing each other, a plurality of sensing elements arranged in an array and defined by the group of gate lines and the group of data lines, each sensing element comprising a TFT device and a photodiode sensing device, wherein the TFT device is a bottom gate TFT; the photodiode sensing device comprises: a receiving electrode connected with a source electrode, a photodiode disposed on the receiving electrode, a transparent electrode disposed on the photodiode, and a bias line disposed on and connected with the transparent electrode, the bias line is disposed as parallel to the gate line.Type: GrantFiled: November 23, 2012Date of Patent: April 19, 2016Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shaoying Xu, Zhenyu Xie, Xu Chen
-
Patent number: 9285644Abstract: 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: GrantFiled: November 27, 2012Date of Patent: March 15, 2016Assignee: TOPPAN PRINTING CO., LTD.Inventors: Hidesato Hagiwara, Mie Shimizu, Kenzo Fukuyoshi, Takao Taguchi
-
Patent number: 9281418Abstract: A capacitor includes an active layer, a gate insulation layer on the active layer, a gate electrode on the gate insulation layer, an interlayer insulating layer on the gate electrode, and a first electrode on the interlayer insulating layer and connected to the active layer through at least one contact hole.Type: GrantFiled: April 10, 2014Date of Patent: March 8, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Guang-Hai Jin, Jae-Beom Choi, Se-Hun Park, Jae-Seol Cho
-
Patent number: 9275597Abstract: According to one embodiment, a display device includes signal lines, scanning lines, pixel switching elements, a signal line driving circuit, a scanning line driving circuit and a display pixel, wherein the signal line driving circuit is configured to apply a voltage, which is identical to a voltage of the counter-electrode, to all the signal lines when a control signal, which is supplied from an outside of the insulative substrate, is at a first logic level, and the scanning line driving circuit is configured to turn on all the pixel switching elements when the control signal is at the first logic level, and to turn off the pixel switching elements at different timings when the control signal is at a second logic level.Type: GrantFiled: March 19, 2014Date of Patent: March 1, 2016Assignee: Japan Display Inc.Inventors: Masaki Miyatake, Akihiko Saitoh
-
Patent number: 9268184Abstract: The present application relates to a sub-pixel structure, a liquid crystal display device and a method for reducing color shift, the sub-pixel structure comprises a main area, a sub area and a signal wire, and the sub-pixel structure further comprises a first voltage dividing unit, the signal wire is connected to the main area and is connected to the sub area via the voltage dividing unit; the signal wire respectively provides different driving voltages for the main area and the sub area for reducing color shift in a liquid crystal display device. The present application has advantages on solving the color shift in relation to viewing angle in LCDs and greatly reducing cost.Type: GrantFiled: February 19, 2014Date of Patent: February 23, 2016Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Hongyuan Xu
-
Patent number: 9268183Abstract: At least either a first substrate or a second substrate has regions corresponding to subpixels (15a, 15b, 15c) and provided with ribs (100a) for controlling how a liquid crystal material is aligned. Scanning signal lines (32) and picture element electrodes (60) are overlapped with each other via an insulating material as seen in plan view. The ribs (100a) and the scanning signal lines (32) are at least partially overlapped with each other as seen in plan view.Type: GrantFiled: December 3, 2008Date of Patent: February 23, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Katsushige Asada, Masahiro Yoshida, Masakatsu Tominaga, Tetsuya Fujikawa, Junichi Morinaga, Toshiaki Fujihara
-
Patent number: 9261747Abstract: To form a sufficiently large storage capacitor, a liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal held between the first substrate and the second substrate, the liquid crystal display panel having multiple pixels arranged in matrix. The first substrate has, in a transmissive display area provided in each of the pixels, a laminated structure containing a first transparent electrode, a first insulating film, a second transparent electrode, a second insulating film, and a third transparent electrode which are laminated in this order. The first transparent electrode and the second transparent electrode are electrically insulated from each other and together form a first storage capacitor through the first insulating film, and the second transparent electrode and the third transparent electrode are electrically insulated from each other and together form a second storage capacitor through the second insulating film.Type: GrantFiled: September 30, 2014Date of Patent: February 16, 2016Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tohru Sasaki, Takahiro Ochiai
-
Patent number: 9257562Abstract: It is an object to provide a method of manufacturing a crystalline silicon device and a semiconductor device in which formation of cracks in a substrate, a base protective film, and a crystalline silicon film can be suppressed. First, a layer including a semiconductor film is formed over a substrate, and is heated. A thermal expansion coefficient of the substrate is 6×10?7/° C. to 38×10?7/° C., preferably 6×10?7/° C. to 31.8×10?7/° C. Next, the layer including the semiconductor film is irradiated with a laser beam to crystallize the semiconductor film so as to form a crystalline semiconductor film. Total stress of the layer including the semiconductor film is ?500 N/m to +50 N/m, preferably ?150 N/m to 0 N/m after the heating step.Type: GrantFiled: March 3, 2015Date of Patent: February 9, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Akihisa Shimomura, Hidekazu Miyairi, Fumito Isaka, Yasuhiro Jinbo, Junya Maruyama
-
Patent number: 9256310Abstract: A touch sensor integrated type display device includes gate lines and data lines; a plurality of pixel electrodes respectively formed in pixel areas defined by crossings of the gate and data lines; a first electrode formed between first pixel electrodes and in parallel with a first gate line of the gate lines, the first pixel electrodes being adjacent to each other with the first gate line interposed therebetween; second electrodes formed between second pixel electrodes and arranged in a line in parallel with a second gate line adjacent to the first gate line, the second pixel electrodes being adjacent to each other with the second gate line interposed therebetween; and third electrodes, each of which is formed in parallel with the data lines and contacts the second electrodes, at least a portion of each of the third electrodes overlapping the first and second pixel electrodes.Type: GrantFiled: December 4, 2013Date of Patent: February 9, 2016Assignee: LG Display Co., Ltd.Inventors: Manhyeop Han, Jinseong Kim
-
Patent number: 9244320Abstract: A liquid crystal display includes a transparent insulation substrate, a first polarizer, and a semiconductor layer, a thin film transistor, and a backlight unit. The first polarizer is disposed on the transparent insulation substrate. The first polarizer includes a light blocking film and metal wires. The semiconductor layer, disposed on the light blocking film, has a perimeter aligned with a perimeter of the light blocking film. The thin film transistor, disposed on the semiconductor layer, includes a source region and a drain region disposed in the semiconductor layer. The backlight unit, disposed under the transparent insulation substrate, provides light to the transparent insulation substrate. The blocking film reflects substantially all of the light. Gaps are disposed between the metal wires.Type: GrantFiled: March 15, 2013Date of Patent: January 26, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dae Hwan Jang, Sang Ho Park, Dong Jo Kim, Jung Gun Nam, Dae-Young Lee, Gug Rae Jo
-
Patent number: 9240423Abstract: A display device includes: an insulating substrate comprising a first region and a second region; a thin-film transistor (TFT) formed on the first region comprising a gate electrode, a source electrode, and a drain electrode; and a storage capacitor formed on the second region, wherein the storage capacitor comprises a first electrode, a second electrode and a first interlayer insulating film, where the first and second electrodes face each other and are made of a transparent conductive material, wherein the interlayer insulating film is interposed between the first electrode and the second electrode, and wherein the first electrode is formed on the entire surface of the first substrate as one body and receives a common voltage, and the second electrode is electrically connected to the drain electrode.Type: GrantFiled: October 27, 2011Date of Patent: January 19, 2016Assignee: Samsung Display Co., Ltd.Inventors: Zhi Feng Zhan, Seung-Gyu Tae, Deok-Hoi Kim
-
Patent number: 9235093Abstract: This disclosure provides a display apparatus which includes a substrate, first TFTs, scan lines and data lines connected to the first TFTs, and second TFTs for controlling inspection-use display signals; wherein each of the second TFTs includes: a first gate electrode disposed on the substrate; a first insulation layer disposed on the first gate electrode; an active unit disposed on the first insulation layer and having a source electrode electrically connected to one of the data lines, an active layer including an oxide semiconductor, and a drain electrode; a second insulation layer disposed on the active unit; and a second gate electrode disposed on the second insulation layer; wherein the first TFTs, the scan lines, and the data lines are disposed in a display area on the substrate, and the second TFTs are disposed in an area other than the display area on the substrate.Type: GrantFiled: August 19, 2014Date of Patent: January 12, 2016Assignee: INNOLUX CORPORATIONInventors: Hsin-Hung Lin, Cheng-Hsu Chou
-
Patent number: 9224354Abstract: A pixel driving method of a liquid crystal display (LCD) device, the LCD device comprising a first stage pixel, a second stage pixel, a first transistor, a second transistor, a third transistor, a first scan line, a second scan line, a plurality of data lines, a main pixel electrode, a sub pixel electrode, and a share capacitance, and the pixel driving method comprising the following steps: A step of driving the first scan line during the first driving period to charge the main pixel electrode and the sub pixel electrode of the first stage pixel, a step of ceasing to drive the first scan line during the second driving period to reduce voltages of the main pixel electrode and the sub pixel electrode of the first stage pixel, a step of driving the second scan line during the third driving period to turn on the third transistor of the first stage pixel, and a step of ceasing to drive the second scan line during the fourth driving period and pulling down the voltages of the main pixel electrode and the sub pixelType: GrantFiled: December 18, 2013Date of Patent: December 29, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Cheng-Hung Chen, Jehao Hsu, Zui Wang, Xiaohui Yao
-
Patent number: 9217902Abstract: The present invention provides an array substrate and a liquid crystal display panel. In the array substrate, with regard to storage capacitors corresponding to one scan line, a capacitance value of the storage capacitor(s) corresponding to the middle of the scan line is smaller than the capacitance value of each of the storage capacitors corresponding to two ends of the scan line, and thereby when data lines input voltage signals, a voltage difference between a pixel electrode(s) of the storage capacitor(s) corresponding to the middle of the scan line and the pixel electrodes of the storage capacitors corresponding to the two ends of the scan line is smaller than a threshold value. By the above described manner, the present invention can improve the uniformity of image brightness.Type: GrantFiled: September 29, 2014Date of Patent: December 22, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Hua Zheng
-
Patent number: 9213209Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.Type: GrantFiled: March 15, 2013Date of Patent: December 15, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
-
Patent number: 9208744Abstract: According to an aspect, a display device includes a liquid crystal layer, a transparent electrode, a reflective electrode, a drive circuit, and a controller. The controller is configured to switch a mode between a first mode for driving the drive circuit at a liquid-crystal inversion frequency of a first frequency so that screen display using light reflected by the reflective electrode is performed and a second mode for driving the drive circuit at a liquid-crystal inversion frequency of a second frequency higher than the first frequency so that screen display using light passing through the opening of the reflective electrode is performed.Type: GrantFiled: September 27, 2013Date of Patent: December 8, 2015Assignee: JAPAN DISPLAY INC.Inventors: Yoko Fukunaga, Masaya Tamaki, Takayuki Nakanishi, Yasuyuki Teranishi