Inverted Transistor Structure Patents (Class 438/158)
  • Patent number: 12125420
    Abstract: A display substrate and a display apparatus are provided. The display substrate includes a base substrate, a crack detection line and an electrostatic discharge element electrically connected to the crack detection line. The base substrate includes a main body area, an auxiliary area, and a necked-down area connecting the main body area and the auxiliary area, and a display area of the display substrate is in the main body area. The crack detection line surrounds, at least in part, the display area and extends through the necked-down area to the auxiliary area. A length direction of the necked-down area is parallel to a first direction; the main body area, the necked-down area and the auxiliary area are connected in a second direction intersecting the first direction; and the electrostatic discharge element is located in the auxiliary area.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: October 22, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tong Niu, Peng Xu, Wenhui Gao, Siyu Wang, Fengli Ji
  • Patent number: 12108638
    Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a thin film transistor arranged on the substrate corresponding to the display area and including a semiconductor layer and a gate electrode, a pad electrode arranged on the substrate corresponding to the peripheral area and including a material the same as that of the semiconductor layer, and a first insulating layer arranged on the thin film transistor and the pad electrode and including an opening that partially exposes the pad electrode. Accordingly, failure to perform a normal operation by a pixel circuit and a light-emitting element may be prevented.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: October 1, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongin Kim, Hyunseong Kang, Joongeol Kim, Seokhwan Bang, Seungsok Son, Woogeun Lee, Youngjae Jeon, Soojung Chae, Jiyun Hong
  • Patent number: 12048185
    Abstract: The display device includes: a display area; a first peripheral area disposed outside the display area; a second peripheral area disposed outside the first peripheral area; an inner dam disposed in the first peripheral area; an outer dam disposed outside the inner dam in the first peripheral area; a resin part formed between the inner dam and the outer dam so as to be higher than the inner dam and the outer dam; and a sealing film disposed so as to overlap with the display area in a plan view. An outer edge of the sealing film overlaps with the resin part or the outer dam in a plan view.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: July 23, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventor: Hiroki Ohara
  • Patent number: 11817461
    Abstract: A light-emitting panel, a method making same, and a display panel are disclosed in the present disclosure. The light-emitting panel includes a light-emitting board which includes a substrate; a first metal layer disposed on the substrate; a gate insulating layer covering the first metal layer; and a second metal layer on a side of the gate insulating layer away from the first metal layer. The second metal layer includes a connection portion located in the bonding area of the light-emitting board, and a conductive protection layer formed by chemical plating is disposed on a surface of the connection portion.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: November 14, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Maoxia Zhu, Hongyuan Xu, Xu Wang
  • Patent number: 11778881
    Abstract: A display device comprises a substrate in which a first subpixel and a second subpixel arranged to adjoin the first subpixel are defined, a first electrode provided in each of the first subpixel and the second subpixel on the substrate, a light emitting layer provided in each of the first subpixel and the second subpixel on the first electrode, a second electrode commonly provided in the first subpixel and the second subpixel on the light emitting layer, a trench portion provided between the first subpixel and the second subpixel, and an insulating portion filling at least a part of the trench portion.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: October 3, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Jiho Ryu
  • Patent number: 11678518
    Abstract: A display device includes a substrate, a pixel driver on the substrate, and a display element connected to the pixel driver. The pixel driver includes a conductive layer on the substrate, a buffer layer on the conductive layer, a semiconductor layer on the buffer layer, a gate electrode, the gate electrode overlapping the semiconductor layer, and a source electrode and a drain electrode connected to the semiconductor layer. The buffer layer includes a flattened portion overlapping the conductive layer, and a stepped portion overlapping the periphery of the conductive layer. The semiconductor layer includes a first oxide semiconductor layer on the buffer layer, and a second oxide semiconductor layer on the first oxide semiconductor layer. A width of the first oxide semiconductor layer is larger than a width of the second oxide semiconductor layer, and the first oxide semiconductor layer is on the stepped portion of the buffer layer.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: June 13, 2023
    Assignee: LG Display Co., Ltd
    Inventors: JungSeok Seo, PilSang Yun, SeHee Park, Jiyong Noh
  • Patent number: 11573462
    Abstract: A manufacturing method of a display panel and the display panel are provided, wherein the display panel includes a base substrate, a first metal layer, an insulation layer, an active layer, a second metal layer, and a passivation layer. The passivation layer corresponding to a bonding area further includes hole structures. Surface materials of the second metal layer corresponding to the hole structures are a third metal material. Reducing materials are introduced to make a surface of the second metal layer form the third metal material during a preparation.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: February 7, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Yong Deng
  • Patent number: 11462602
    Abstract: An array substrate, a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate; a first signal line on the base substrate; a first buffer layer provided on the base substrate and covering the first signal line; a second signal line on a side of the first buffer layer facing away from the base substrate; a first insulating layer provided on the base substrate and covering the second signal line; and a thin film transistor on a side of the first insulating layer facing away from the base substrate, the thin film transistor including a gate electrode, a source electrode and a drain electrode. A thickness of the first signal line is greater than that of the gate electrode, and a thickness of the second signal line is greater than that of the source electrode or the drain electrode.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 4, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Yongchao Huang, Jun Cheng, Dongfang Wang, Jun Liu, Leilei Cheng, Liangchen Yan
  • Patent number: 11407642
    Abstract: The present invention refers to a method for exfoliating and transferring graphene from a doped silicon carbide substrate to another substrate, the method being based on exfoliation induced by hydrogen bubbles produced in the electrolysis of water.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: August 9, 2022
    Assignees: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS (CSIC), CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED (CIBER)
    Inventors: Gemma Rius Suñé, Philippe Godignon, Rosa Villa Sanz, Elisabet Prats Alfonso
  • Patent number: 11347148
    Abstract: A patterning method and a method for manufacturing an array substrate are provided, and the patterning method includes: forming a photolithography auxiliary film and a positive photoresist film in turn on a base substrate provided with a layer to be patterned; subjecting the photolithography auxiliary film and the positive photoresist film to a photolithography process to form a photolithography auxiliary layer pattern and a positive photoresist pattern; patterning the layer to be patterned; and UV irradiating the photolithography auxiliary layer pattern and the positive photoresist pattern and then removing the photolithography auxiliary layer pattern and the positive photoresist pattern.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: May 31, 2022
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Wei Li, Bin Zhou, Jun Liu, Ning Liu, Yang Zhang, Yingbin Hu
  • Patent number: 11296087
    Abstract: Embodiments herein describe techniques for a semiconductor device including a TFT having a gate electrode with a gate length determined by a spacer. Embodiments may include a gate electrode above a substrate, a channel layer above the gate electrode, and a source electrode, a drain electrode, and a spacer above the channel layer. The drain electrode may be separated from the source electrode by the spacer. The drain electrode and the source electrode may have different widths or include different materials. Furthermore, the spacer may overlap with the gate electrode, hence the gate length of the gate electrode may be determined by the spacer width. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 5, 2022
    Assignee: Intel Corporation
    Inventors: Abhishek A. Sharma, Van H. Le, Gilbert Dewey, Shriram Shivaraman, Yih Wang, Tahir Ghani, Jack T. Kavalieros
  • Patent number: 11257874
    Abstract: Disclosed are an array substrate, a preparation method thereof, a display panel and a display device. The array substrate includes a base substrate, a first thin film transistor, a photosensitive sensor, and a dielectric layer. The first thin film is on the base substrate and includes a gate, a drain, a source and a conductive channel between the drain and the source. The photosensitive sensor has the drain of the first thin film transistor as an electrode of the photosensitive sensor. The dielectric layer covers the conductive channel of the first thin film transistor, where the dielectric layer is a metal oxide film.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: February 22, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Guoying Wang, Zhen Song
  • Patent number: 11245008
    Abstract: The present application provides a TFT, a manufacturing method thereof, and a sensor. The TFT includes a substrate, and a source, a drain and an active layer on the substrate. The active layer includes a microchannel, and the thin film transistor is configured to detect a sample in the microchannel. When a sample to be detected enters the microchannel, the electron distribution in the active layer would be affected, which causes fluctuations in the TFT characteristics. By detecting such fluctuations, detecting the composition and property of the liquid to be detected may be achieved. Moreover, by virtue of the microchannel, the sample may be precisely controlled. The impact of the external environment may be reduced and the detection accuracy can be enhanced. Continuous monitoring instead of one-time detection of the sample may be achieved and the sample detection efficiency may be improved.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: February 8, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaochen Ma, Guangcai Yuan, Ce Ning, Hehe Hu, Xin Gu
  • Patent number: 11150553
    Abstract: A method of forming imprinted patterns is provided. The method may include detecting a particle located on a wafer. The method may include distributing an imprint medium material on a surface of the wafer. The method may include forming an imprint medium layer on a surface of the wafer with a template and the imprint medium material.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: October 19, 2021
    Assignee: SK hynix Inc.
    Inventor: Wooyung Jung
  • Patent number: 11127761
    Abstract: The present invention teaches a TFT array substrate, including a substrate; a first metallic layer disposed on the substrate; a gate insulation layer disposed on the first metallic layer and the substrate, where the gate insulation layer includes a level section above the first metallic layer and a pair of step sections respectively connected to lateral sides of the level section; a second metallic layer disposed on the level section, where an area of the second metallic layer's vertical projection onto the top side of the substrate is smaller than an area of the level section's top side; and a protection layer disposed on the second metallic layer and the gate insulation layer. As the second metallic layer is withdrawn for a distance from the level section's circumference, the protection layer is not required to rise continuously, and the protection layer is less prone to broken film and oxidization.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 21, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yang Zhao
  • Patent number: 11011570
    Abstract: An imaging panel includes a photoelectric conversion layer on a side of one of surfaces of a substrate. Further, the imaging panel includes an electrode connected to one of surfaces of the photoelectric conversion layer, a bias line connected with the electrode, and a protection film that is made of a material resistant against an etching agent containing hydrofluoric acid, and covers side surfaces of the bias line.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 18, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Katsunori Misaki
  • Patent number: 10782606
    Abstract: Disclosed are embodiments of a multi-layer stack and photolithography methods and systems that employ such a stack. The disclosed multi-layer stacks include a photoresist layer on an underlayer. The photoresist layer and underlayer are made of different materials, which are selected so that valence and conduction band offsets between the underlayer and photoresist layer create an effective electric field (i.e., so that the stack is “self-biased”). When areas of the photoresist layer are exposed to radiation during photolithography and the radiation passes through photoresist layer and excites electrons in the underlayer, this effective electric field facilitates movement of the radiation-excited electrons from the underlayer into the radiation-exposed areas of the photoresist layer in a direction normal to the interface between the underlayer and the photoresist layer.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 22, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Yong Liang, Lei Sun, Yongan Xu, Craig D. Higgins
  • Patent number: 10535776
    Abstract: When a semiconductor device including a transistor in which a gate electrode layer, a gate insulating film, and an oxide semiconductor film are stacked and a source and drain electrode layers are provided in contact with the oxide semiconductor film is manufactured, after the formation of the gate electrode layer or the source and drain electrode layers by an etching step, a step of removing a residue remaining by the etching step and existing on a surface of the gate electrode layer or a surface of the oxide semiconductor film and in the vicinity of the surface is performed. The surface density of the residue on the surface of the oxide semiconductor film or the gate electrode layer can be 1×1013 atoms/cm2 or lower.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: January 14, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masahiko Hayakawa, Tatsuya Honda
  • Patent number: 10424638
    Abstract: A semiconductor device includes a gate electrode, an insulating layer, a first carbon nanotube, a second carbon nanotube, a P-type semiconductor layer, an N-type semiconductor layer, a conductive film, a first electrode, a second electrode and a third electrode. The insulating layer is located on a surface of the gate electrode. The first carbon nanotube and the second carbon nanotube are located on a surface of the insulating layer. The P-type semiconductor layer and the N-type semiconductor layer are located on the surface of the insulating layer and apart from each other. The conductive film is located on surfaces of the P-type semiconductor layer and the N-type semiconductor layer. The first electrode is electrically connected with the first carbon nanotube. The second electrode is electrically connected with the second carbon nanotube. The third electrode is electrically connected with the conductive film.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: September 24, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jin Zhang, Yang Wei, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 10389013
    Abstract: The present application relates to a grating assembly, a display device, a control method thereof and a storage medium, in the field of display technology. The grating assembly comprises: a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate is provided with a power supply electrode on a side adjacent to the liquid crystal layer, and the second substrate is provided with k strip electrodes on a side adjacent to the liquid crystal layer. The k strip electrodes are connected to form a coil.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 20, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Dongmei Wei
  • Patent number: 10345697
    Abstract: The present disclosure relates to a mask plate and a manufacturing method of array substrates. The mask plate includes: at least two first sub-areas and at least one second sub-area. Wherein the first sub-areas are spaced apart from each other, and the first sub-areas are configured to be as semi-transparent areas, and a transmittance rate of the the second sub-area is greater than the first sub-area. When conducting an exposure process on a photoresist, a thickness of the exposed photoresist via the second sub-area is greater than a thickness of the exposed photoresist via the first sub-area. When manufacturing an array substrate, a channel of the array substrate corresponds to the second sub-area. The time for conducting the exposure process and an ashing process may be reduced by adopting the mask plate when manufacturing the array substrates.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: July 9, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Dongzi Gao
  • Patent number: 10276604
    Abstract: There are provided a display panel and a display device including the same. In the display panel and display device including the same, in a structure in which an insulating layer having a depression point is provided between different conductive layers, another insulating layer may be disposed to cover the depression point. Accordingly, an occurrence of a short circuit may be minimized between the different conductive layers.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 30, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jaeyeong Choi, ChongHun Park
  • Patent number: 10189003
    Abstract: Systems and methods for synthesizing nanocrystals using continuous, microwave-assisted, segmented flow reactor.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 29, 2019
    Assignee: OREGON STATE UNIVERSITY
    Inventors: Ki-Joong Kim, Eric Bradley Hostetler, Gregory Scott Herman, Daniel Alan Peterson, Chih-hung Chang, Brendan Thomas Flynn, Brian Kevin Paul, Richard Paul Oleksak, Padmavathi Chandran, Bob C. Fitzmorris, Gustavo Henrique Albuquerque
  • Patent number: 10170635
    Abstract: A semiconductor device includes a base; a gate electrode to which a gate voltage is applied; a source electrode and a drain electrode through which an electric current is generated according to the gate voltage being applied to the gate electrode; a semiconductor layer made of an oxide semiconductor; and a gate insulating layer inserted between the gate electrode and the semiconductor layer. The semiconductor layer includes a channel-forming region and a non-channel-forming region; the channel-forming region is in contact with the source electrode and the drain electrode, and the non-channel-forming region is in contact with the source electrode and the drain electrode.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 1, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinji Matsumoto, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Yuji Sone, Ryoichi Saotome, Sadanori Arae, Minehide Kusayanagi
  • Patent number: 10147779
    Abstract: There is provided a display device including: a light emitting element; and a drive transistor (DRTr) that includes a coupling section (W1) and a plurality of channel sections (CH) coupled in series through the coupling section (W1), wherein the drive transistor (DRTr) is configured to supply a drive current to the light emitting element.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: December 4, 2018
    Assignee: Sony Corporation
    Inventor: Seiichiro Jinta
  • Patent number: 10141207
    Abstract: A vacuum processing apparatus includes a processing chamber inside a vacuum vessel, a plasma forming chamber above, a dielectric plate member having multiple through-holes for introducing particles of plasma to the processing chamber between the processing chamber and the plasma forming chamber above a sample stage upper surface in the processing chamber, heating lamp arranged around an outer periphery of the plate member to irradiate an electromagnetic wave to the wafer to heat, and a ring-shaped window member for transmitting the electromagnetic wave from the lamp. The apparatus performs, from the through-holes to the wafer, supplying particles of plasma formed in the plasma forming chamber to form a reaction product, extinguishing the plasma and heating the wafer to desorb the product, and supplying particles, formed in the plasma forming chamber, of the plasma of cleaning gas to the plasma forming chamber, the processing chamber, and the window member.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: November 27, 2018
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yutaka Kouzuma, Hiroyuki Kobayashi, Nobuya Miyoshi, Kenetsu Yokogawa, Tomoyuki Watanabe
  • Patent number: 10121841
    Abstract: There is provided a display device including: a light emitting element; and a drive transistor (DRTr) that includes a coupling section (W1) and a plurality of channel sections (CH) coupled in series through the coupling section (W1), wherein the drive transistor (DRTr) is configured to supply a drive current to the light emitting element.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 6, 2018
    Assignee: Sony Corporation
    Inventor: Seiichiro Jinta
  • Patent number: 10068923
    Abstract: A transparent display device includes a base substrate having a pixel area and a transmission area, a barrier layer disposed on the base substrate, a pixel circuit disposed in the pixel area, a display structure disposed on the pixel circuit, a transmitting structure disposed in the transmission area, an adhesive layer disposed between the base substrate and the barrier layer, and between the base substrate and the transmitting structure, and a transmitting window defined in the transmission area where the transmitting structure may include a composition including silicon oxynitride, the adhesive layer may include aluminum oxide, and the transmitting window may expose a surface of the transmitting structure.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: September 4, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Ho Jung, Chaun-Gi Choi, Hyeon-Sik Kim, Hye-Young Park, Hye-Hyang Park, Hui-Won Yang, Eun-Young Lee, Joo-Hee Jeon, Su-Kyoung Yang, Chan-Woo Yang
  • Patent number: 10038171
    Abstract: A method for manufacturing a display device is provided. The method includes forming a display element interposed between a first substrate and a second substrate and peeling the second substrate from the first substrate so that an electrode, which is located between the first and second substrates and to be connected to an external electrode, is exposed simultaneously with the peeling of the second substrate.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: July 31, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tatsuya Sakuishi, Daiki Nakamura, Akihiro Chida, Tomoya Aoyama
  • Patent number: 9954044
    Abstract: A display apparatus includes a first substrate including a channel-forming area, a second substrate facing the first substrate, a thin-film transistor disposed on the first substrate, a pixel electrode electrically connected to the thin-film transistor, a gate line disposed on the first substrate and electrically connected to the thin-film transistor, a data line electrically connected to the thin-film transistor and divided into at least two portions such that the channel-forming area is disposed between the two portions of the data line, and a connection portion electrically connecting the two portions of the data line to each other, in which the thin-film transistor includes a gate electrode branched from the gate line and overlapping the channel-forming area, a semiconductor pattern overlapping the gate electrode and contacting the two portions of the data line so that the channel-forming area is disposed in the semiconductor pattern, and a drain electrode electrically connected to the pixel electrode and
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: April 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Gun Oh, Seunghyun Park, JiEun Lee, Cheol-Gon Lee, Woongki Jeon
  • Patent number: 9887255
    Abstract: An array substrate, a display device, and a method for manufacturing the array substrate are disclosed. The array substrate comprises a base substrate, a light-absorbing layer, and a bottom-gate thin film transistor unit arranged in sequence, wherein a projection of the light-absorbing layer covers a gate metal layer, a source metal layer, and a drain metal layer of the bottom-gate thin film transistor unit. According to the present disclosure, the ambient light can be prevented from irradiating the metal layers of the bottom-gate thin film transistor unit effectively in the case that the brightness of the display panel is not reduced.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 6, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xiangyang Xu
  • Patent number: 9887392
    Abstract: A method for manufacturing a display device is provided. The method includes forming a display element interposed between a first substrate and a second substrate and peeling the second substrate from the first substrate so that an electrode, which is located between the first and second substrates and to be connected to an external electrode, is exposed simultaneously with the peeling of the second substrate.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: February 6, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tatsuya Sakuishi, Daiki Nakamura, Akihiro Chida, Tomoya Aoyama
  • Patent number: 9865667
    Abstract: An organic light-emitting diode (OLED) display and a method of manufacturing thereof are disclosed. In one aspect, the display includes a scan line formed over a substrate and configured to provide a scan signal. An initialization voltage line has substantially the same pattern as the scan line and is insulated from the scan line. A data line crosses the scan line and is configured to provide a data voltage. A switching transistor is electrically connected to the scan line and the data line, and a driving transistor is electrically connected to the switching transistor and includes a driving gate electrode. A storage capacitor includes a first storage electrode and a second storage electrode overlapping the first storage electrode, wherein the first storage electrode and the driving gate electrode are integrally formed.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: January 9, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Elly Gil, Seung Gyu Tae
  • Patent number: 9859306
    Abstract: In a thin film transistor, an increase in off current or negative shift of the threshold voltage is prevented. In the thin film transistor, a buffer layer is provided between an oxide semiconductor layer and each of a source electrode layer and a drain electrode layer. The buffer layer includes a metal oxide layer which is an insulator or a semiconductor over a middle portion of the oxide semiconductor layer. The metal oxide layer functions as a protective layer for suppressing incorporation of impurities into the oxide semiconductor layer. Therefore, in the thin film transistor, an increase in off current or negative shift of the threshold voltage can be prevented.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: January 2, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshikazu Kondo, Hideyuki Kishida
  • Patent number: 9837442
    Abstract: An object is to improve reliability of a semiconductor device. A semiconductor device including a driver circuit portion and a display portion (also referred to as a pixel portion) over the same substrate is provided. The driver circuit portion and the display portion include thin film transistors in which a semiconductor layer includes an oxide semiconductor; a first wiring; and a second wiring. The thin film transistors each include a source electrode layer and a drain electrode layer. In the thin film transistor in the driver circuit portion, the semiconductor layer is sandwiched between a gate electrode layer and a conductive layer. The first wiring and the second wiring are electrically connected to each other in an opening provided in a gate insulating film through an oxide conductive layer.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: December 5, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama, Masashi Tsubuku
  • Patent number: 9817525
    Abstract: The touch panel includes a plurality of touch pads arranged in an array on the touch panel. Each of the touch pads are arranged in N columns and M rows, the touch pad in the ith column and in the jth row is coupled to the touch pad in the (i?1)th column and in the (j?1)th row and the touch pad in the (i+1)th column and in the (j+1)th row, or the touch pad in the ith column and in the jth row is coupled to the touch pad in the (i+1)th column and in the (j?1)th row and the touch pad in the (i?1)th column and in the (j+1)th row.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 14, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Shih-Jung Lu, Wing-Kai Tang
  • Patent number: 9727195
    Abstract: A method for fabricating a touch panel includes forming a routing and pad pattern group on a substrate to include first and second routing lines, first pad electrodes connected to the first routing line, and second pad electrodes connected to the second routing line, by using a first mask, forming a sensor electrode pattern group on the substrate having the routing and pad pattern group formed thereon to include first sensor electrodes formed in a first direction, second sensor electrodes formed in a second direction, and connection portions that each connects adjacent first sensor electrodes, by using a second mask, forming a first insulating layer to include contact holes to expose portions of the second sensor electrodes, respectively, by using a third mask and forming bridges that each connects adjacent second sensor electrodes through the contact holes and a second insulating layer on the bridges, by using a fourth mask.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 8, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung-Hyun Kim, Hyung-Chul Kim, Tae-Yeon Yoo
  • Patent number: 9685461
    Abstract: A manufacturing method of an array substrate, an array substrate and a display device are provided. The array substrate includes a first thin film transistor and a pixel electrode (327), wherein, an active layer (324) and source and drain electrodes in the first thin film transistor as well as the pixel electrode (327) are formed by one patterning process. According to the invention, an array substrate with good performance can be manufactured only by three photolithography processes. Thus, the production cycle of a thin film transistor is shorted greatly, characteristics of the thin film transistor is improved, and meanwhile, yield of products is enhanced greatly.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 20, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Guangcai Yuan
  • Patent number: 9685476
    Abstract: To provide an imaging device capable of high-speed reading. The imaging device includes a photodiode, a first transistor, a second transistor, a third transistor, and a fourth transistor. The back gate electrode of the first transistor is electrically connected to a wiring that can supply a potential higher than a source potential of the first transistor and a potential lower than the source potential of the first transistor. The back gate electrode of the second transistor is electrically connected to a wiring that can supply a potential higher than a source potential of the second transistor. The back gate electrode of the third transistor is electrically connected to a wiring that can supply a potential higher than a source potential of the third transistor and a potential lower than the source potential of the third transistor.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 20, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Seiichi Yoneda, Takuro Ohmaru, Yuki Okamoto
  • Patent number: 9673336
    Abstract: A transistor having an oxide semiconductor film in a channel formation region and a manufacturing method thereof are disclosed. The transistor is formed by the steps of: forming a base insulating over a substrate; forming an oxide semiconductor film over the base insulating film; forming a conductive film over the oxide semiconductor film; processing the conductive film to form a source electrode and a drain electrode; processing the oxide semiconductor film; forming a gate insulating film over the source electrode, the drain electrode, and the oxide semiconductor film; and forming a gate electrode over the gate insulating film. The aforementioned manufacturing method allows the formation of a transistor in which a side surface of the oxide semiconductor film is not in direct contact with bottom surfaces of the source electrode and the drain electrode, which contributes to the extremely small leak current of the transistor.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: June 6, 2017
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Shunpei Yamazaki
  • Patent number: 9658502
    Abstract: Disclosed is an LCD device having a dual link structure and a method of manufacturing the same, which can reduce a width of a bezel. A link line structure includes a plurality of first and second link lines which are alternately disposed. The first and second link lines are formed on different layers. Also, embodiments herein provide a method which can reduce the number of masks used in a manufacturing process and can easily manufacture the LCD device in consideration of the possibility of misalignment of exposure equipment.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: May 23, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Je Hyung Park, Tae Yong Jung
  • Patent number: 9620623
    Abstract: When a semiconductor device including a transistor in which a gate electrode layer, a gate insulating film, and an oxide semiconductor film are stacked and a source and drain electrode layers are provided in contact with the oxide semiconductor film is manufactured, after the formation of the gate electrode layer or the source and drain electrode layers by an etching step, a step of removing a residue remaining by the etching step and existing on a surface of the gate electrode layer or a surface of the oxide semiconductor film and in the vicinity of the surface is performed. The surface density of the residue on the surface of the oxide semiconductor film or the gate electrode layer can be 1×1013 atoms/cm2 or lower.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: April 11, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masahiko Hayakawa, Tatsuya Honda
  • Patent number: 9617158
    Abstract: Cohesive carbon assemblies are prepared by obtaining a carbon starting material in the form of powder, particles, flakes, or loose agglomerates, dispersing the carbon in a selected organic solvent by mechanical mixing and/or sonication, and substantially removing the organic solvent, typically by evaporation, whereby the cohesive assembly of carbon is formed. The method is suitable for preparing free-standing, monolithic assemblies of carbon nanotubes in the form of films, wafers, or discs, having high carbon packing density and low electrical resistivity. The method is suitable for preparing adherent cohesive carbon assemblies on substrates comprising various materials. The assemblies have various potential applications, such as electrodes or current collectors in electrochemical capacitors, fuel cells, and batteries, or as electromagnetic interference shielding materials.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 11, 2017
    Assignee: YAZAKI CORPORATION
    Inventors: Satyabrata Raychaudhuri, Yongan Yan, Leonid Grigorian
  • Patent number: 9595319
    Abstract: A novel 2D/3D hierarchical-BL NAND array with at least one plane on independent Psubstrate comprising a plurality of LG groups respectively associated with a plurality of local bit lines (LBLs) laid at a level below a plurality of broken or non-broken global bit lines (GBLs) connected to Page Buffer. Each LG group includes multiple blocks and connects an independent power supply line to each of the plurality of LBLs. Each block including N-bit 2D/3D NAND strings each with S cells connected in series and terminated by two string-select devices and coupled to a common source line. In particular, random-size partial-block WLs are selected from each block of randomly selected LG groups of one plane of the 2D/3D NAND array for erase at the same time with border WLs being optionally preread and program into another plane of the 2D/3D NAND array or optionally saved off-chip and wrote back for data security.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: March 14, 2017
    Inventor: Peter Wung Lee
  • Patent number: 9583509
    Abstract: An object is to improve reliability of a semiconductor device. A semiconductor device including a driver circuit portion and a display portion (also referred to as a pixel portion) over the same substrate is provided. The driver circuit portion and the display portion include thin film transistors in which a semiconductor layer includes an oxide semiconductor; a first wiring; and a second wiring. The thin film transistors each include a source electrode layer and a drain electrode layer. In the thin film transistor in the driver circuit portion, the semiconductor layer is sandwiched between a gate electrode layer and a conductive layer. The first wiring and the second wiring are electrically connected to each other in an opening provided in a gate insulating film through an oxide conductive layer.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: February 28, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama, Masashi Tsubuku
  • Patent number: 9559127
    Abstract: A thin film transistor array panel includes an insulation substrate; a gate line and a first electrode on the insulation substrate; a gate insulating layer on the gate line and the first electrode; a data line on the gate insulating layer; a passivation layer on the gate insulating layer and the data line; and a second electrode on the passivation layer. Relative permittivity (?) of the gate insulating layer is more than about 15, and a thickness of the gate insulating layer is about 2000 angstroms.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: January 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Daisuke Inoue, Mi Suk Kim, Si Heun Kim, Tae Ho Kim, So Youn Park, Keun Chan Oh, Chang-Hun Lee
  • Patent number: 9541809
    Abstract: An array substrate includes a plurality of data lines, a plurality of gamma lines, a repair pad, a repair line, an inspection pad and an inspection line. The data lines transmit a data voltage to an active region. The gamma lines apply a gamma reference voltage to generate the data voltage. The repair pad repairs the data line. The repair line extends from the repair pad. The repair line is disposed adjacent to the gamma line. The inspection pad applies an inspection signal. The inspection line extends from the inspection pad. The inspection line is connected to the data lines. The gamma lines are connected to the inspection line.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: January 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Seok Han, Seul-Ki Kim, Seung-Jin Kim, Jeong-Hyun Lee
  • Patent number: 9515135
    Abstract: An edge termination structure for a silicon carbide semiconductor device includes a plurality of spaced apart concentric floating guard rings in a silicon carbide layer that at least partially surround a silicon carbide-based junction, an insulating layer on the floating guard rings, and a silicon carbide surface charge compensation region between the floating guard rings and adjacent the surface of the silicon carbide layer. A silicon nitride layer is on the silicon carbide layer, and an organic protective layer is on the silicon nitride layer. An oxide layer may be between the silicon nitride layer and the surface of the silicon carbide layer. Methods of forming edge termination structures are also disclosed.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: December 6, 2016
    Assignee: Cree, Inc.
    Inventors: Sei-Hyung Ryu, Anant K. Agarwal, Allan Ward
  • Patent number: 9496403
    Abstract: A circuit including an inverter is provided for a wiring layer. A semiconductor device is provided with a wiring layer circuit which is formed over an insulating film and includes at least one inverter element. The inverter is provided with a first transistor element and a resistance element which is connected to the first transistor via a connection node. The first transistor element is provided with a gate electrode which is embedded in an interlayer insulating film including the insulating film, a gate insulating film which is formed over the interlayer insulating film and the gate electrode, and a first semiconductor layer which is formed over the gate insulating film between a source electrode and a drain electrode. The resistance element is provided with a second semiconductor layer which functions as a resistance. The first semiconductor layer and the second semiconductor layer are formed in the same layer.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 15, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kishou Kaneko, Hiroshi Sunamura, Yoshihiro Hayashi
  • Patent number: 9477358
    Abstract: A touch screen panel includes a touch substrate, first sensing electrodes, second sensing electrodes, and outer lines. The touch substrate includes a touch active area and a touch non-active area. The first and second sensing electrodes are disposed in the touch active area and insulated from each other while crossing each other. Each first sensing electrode includes a first sensing metal layer and a first transparent sensing electrode layer. Each second sensing electrode includes a second sensing metal layer and a second transparent sensing electrode layer. Each outer line includes a first outer metal layer, a transparent outer electrode layer, and a second outer metal layer.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: October 25, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeong-Jin Lee, Joo-Han Bae, Byeongkyu Jeon, Sungku Kang, Jinhwan Kim, Heewoong Park, Jee-Hun Lim