Patents Examined by Thoi V. Duong
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Patent number: 11876102Abstract: The present disclosure provides a display substrate, a display panel and a display apparatus, belonging to the field of display technology. The display substrate includes a base, a plurality of common electrodes and a plurality of common electrode lines, the common electrodes are distributed on the base in an array, the common electrode lines extend along a row direction, and each common electrode line is connected to a corresponding row of common electrodes. The common electrode line is connected to the common electrode through a conductive connection portion, and the conductive connection portion includes conductive structures stacked on top of one another in a plurality of layers. The display substrate can reduce the resistance between the common electrode and the common electrode line, thereby reducing the voltage difference between the common electrodes in the display substrate and improving the uniformity of the common voltage therein.Type: GrantFiled: January 19, 2023Date of Patent: January 16, 2024Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xue Wang, Xiao Wang, Yan Yan, Tingting Wang, Yaya Qi, Xiaoying Li, Zhiqiang Ma
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Patent number: 11874572Abstract: According to one embodiment, an electronic device includes an imaging device, and a liquid crystal panel including a display portion overlapping the imaging device, wherein the liquid crystal panel includes a first pixel overlapping the imaging device, an opening portion provided in the first pixel, a second pixel adjacent to the first pixel, and a third pixel adjacent to the second pixel, the third pixel includes a first coloring layer, a second coloring layer and a third coloring layer, and the second pixel does not include the coloring layer or includes a transparent resinous layer.Type: GrantFiled: July 25, 2022Date of Patent: January 16, 2024Assignee: Japan Display Inc.Inventor: Hirondo Nakatogawa
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Patent number: 11874566Abstract: According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area and an incident light control area. The camera overlaps the incident light control area. The display area includes a pixel electrode. The incident light control area includes a first control electrode which is different in shape from the pixel electrode, a second control electrode, and a common electrode. A voltage applied to the first control electrode and a voltage applied to the second control electrode are different in polarity from a common voltage applied to the common electrode.Type: GrantFiled: February 8, 2022Date of Patent: January 16, 2024Assignee: Japan Display Inc.Inventor: Takanori Tsunashima
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Patent number: 11868011Abstract: The present application discloses a liquid crystal display panel, which includes an array substrate, a color filter substrate, a first polarizer and a second polarizer; wherein each of the pixel units includes a pixel electrode, the pixel electrode includes a trunk electrode, the trunk electrode includes a first trunk electrode disposed along a first direction and a second trunk electrode disposed along a second direction, and an angle between the first direction and the first polarization direction is different from a right angle.Type: GrantFiled: April 15, 2020Date of Patent: January 9, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Xingwu Chen, Yoonsung Um, Yinfeng Zhang, Xin Zhang, Lixuan Chen, Dongze Li
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Patent number: 11846859Abstract: A display panel is disclosed, including a substrate, a first metal layer, a first insulation layer, an active layer, and a second metal layer stacked sequentially, wherein the first metal layer includes a first electrode, the second metal layer includes a second electrode, the first electrode and the second electrode are partially overlapped to form a first overlapping region, a plurality of pads are disposed between the first insulation layer and the second metal layer, and a part of the pads are at least located in the first overlapping region, to improve an anti-static ability of the first electrode and the second electrode on an overlapping location.Type: GrantFiled: July 26, 2021Date of Patent: December 19, 2023Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Feifei Xie, Mengyang Liu, Wuhui Wang
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Patent number: 11841597Abstract: The present disclosure provides an array substrate and a display panel including the same. The array substrate includes a plurality of pixel units. Each of the pixel units includes a main pixel electrode, a sub-pixel electrode, a first thin film transistor (TFT) electrically connected to the sub-pixel electrode, a second TFT electrically connected to the first TFT, and a third TFT electrically connected to the main pixel electrode. The first TFT includes a first channel and a first semiconductor layer. The first channel includes two or more subchannels. The first semiconductor layer includes two or more semiconductor sublayers. Each of the semiconductor sublayers is disposed in a corresponding subchannel.Type: GrantFiled: May 20, 2020Date of Patent: December 12, 2023Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Zhixiong Jiang, Sheng Sun, Yoonsung Um, Woosung Son, Meng Chen, Wuguang Liu, Jubin Li, Zhiwei Tan, Haiyan Quan, Kaili Qu, Chuwei Liang, Ziqi Liu, Lintao Liu, Ting Li, Sikun Hao
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Patent number: 11841575Abstract: A liquid crystal display device includes a first polarizing plate, a first substrate including a thin-film transistor, a liquid crystal layer containing liquid crystal molecules, a second substate, a second polarizing plate, and a backlight. The first polarizing plate, the first substate, the liquid crystal layer, the second substrate, the second polarizing plate, and the backlight are arranged in this order. The first substrate has a display area and a frame area placed on an outer edge of the display region. The liquid crystal display device has an ink layer between the frame area of the first substrate and the first polarizing plate. The liquid crystal display device has an internal reflectance ratio y of 0.2 to 0.3. The internal reflectance ratio y is expressed by Formula (1-1).Type: GrantFiled: April 13, 2023Date of Patent: December 12, 2023Assignee: Sharp Display Technology CorporationInventors: Akira Hirai, Yuichi Kawahira, Akira Sakai
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Patent number: 11822166Abstract: A hinge assembly includes a first arm, a second arm, a rotatable pin coupling, and a power transfer conduit. The rotatable pin coupling rotationally couples the second arm to the first arm. The first arm defines a first portion of a channel, the second arm defines a second portion of the channel, and rotatable pin coupling defines a third portion of the channel. The power transfer conduit extends through the first portion of the channel at the first arm, the third portion of the channel at the rotatable pin coupling, and the second portion of the channel at the second arm.Type: GrantFiled: July 30, 2021Date of Patent: November 21, 2023Assignee: Cardinal IG CompanyInventors: Eric Berner, Zachary Franz
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Patent number: 11822189Abstract: A pixel unit and an LCD device are disclosed. The pixel unit comprises four sub-pixel units. Each of the sub-pixel units comprises a pixel electrode, comprising a plurality of strip portions positioned at intervals. Two adjacent strip portions define a slit. One strip portion and one slit adjacent to the strip portion are defined as an electrode portion and a width of the electrode portion is a sum of a width of the slit and a width of the strip portion. The width of each of the electrode portions and/or the width of each of the strip portions and/or the width of each of the slits is different. Since the pixel electrodes in different positions have a different aperture ratio-voltage curve. This improves the viewing angle deviation of the four domain pixel electrode.Type: GrantFiled: May 11, 2020Date of Patent: November 21, 2023Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Tongxiu Liu, Xiaohui Yao, Ilgon Kim
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Patent number: 11822175Abstract: A liquid crystal display is provided. The liquid crystal display includes a first substrate. The liquid crystal display also includes a plurality of first thin film transistors disposed on the first substrate. The liquid crystal display further includes a second substrate disposed opposite to the first substrate. In addition, the liquid crystal display includes a plurality of second thin film transistors disposed on the second substrate. The liquid crystal display also includes a plurality of sensing units disposed on the second substrate, and at least one of the plurality of sensing units electrically connected to at least one of the plurality of second thin film transistors. The liquid crystal display further includes a liquid crystal layer disposed between the first substrate and the second substrate.Type: GrantFiled: December 12, 2022Date of Patent: November 21, 2023Assignee: INNOLUX CORPORATIONInventors: Yu-Chia Huang, Yuan-Lin Wu, Chandra Lius, Kuan-Feng Lee, Tsung-Han Tsai
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Patent number: 11822172Abstract: A light control sheet including a light control sheet body having a front surface and a back surface, the light control sheet body including a first film including a transparent electrode layer, a second film including a transparent electrode layer, a liquid crystal layer formed between the first and second films, and a sealant covering an edge portion of the liquid crystal layer. The second film has a second film contact surface which includes a portion in contact with the liquid crystal layer, and further includes a second film outer peripheral part on which the sealant is formed, the second film outer peripheral part is extended along the edge portion of the liquid crystal layer, and when viewed in a first direction from the front surface to the back surface, the second film outer peripheral part does not overlap the first film or the liquid crystal layer.Type: GrantFiled: November 23, 2021Date of Patent: November 21, 2023Assignee: TOPPAN Inc.Inventors: Sohei Abe, Keisuke Fukuhara
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Patent number: 11815776Abstract: Provided are an array substrate, a display panel and a display device. The array substrate includes a first base; a switch array layer including transistors; a pixel electrode layer including pixel electrodes, each of which being connected to a drain electrode of a pixel electrode through a via; and a color resist array layer including color resists, each of which includes a first edge and a second edge opposite to each other in a first direction. First and second recesses are formed at first and second edges; for two color resists adjacent in the first direction, the first recess of one color resist is opposite to the second recess of the other color resist; and projections of the first and second recesses overlap at least partially with a projection of the via in a second direction, and the second direction is parallel to a thickness direction of the array substrate.Type: GrantFiled: June 28, 2020Date of Patent: November 14, 2023Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Yongjin Teng, Xiaoli Liu, Yingzhang Qiu, Limin Lin, Jiao Gao, Tingxi Huang
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Patent number: 11807794Abstract: A liquid crystal alignment agent and a preparation method thereof, a liquid crystal alignment film and a preparation method thereof, and a liquid crystal cell are provided. A piperazine monomer is added to a liquid crystal alignment agent, a bulk resistance value and a surface resistance value of a liquid crystal alignment agent material can be reduced, and the ability of the liquid crystal alignment agent material to release residual charges can be effectively improved, thereby increasing the reliability and stability of an electronic product. The liquid crystal cell using the liquid crystal alignment agent has advantages such as high voltage holding ratio (VHR) and low residual voltage.Type: GrantFiled: October 22, 2021Date of Patent: November 7, 2023Assignee: SHENZHEN DALTON ELECTRONIC MATERIAL CO., LTDInventors: Shenglin Wang, Houming Li, Jianghua Su
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Patent number: 11803092Abstract: It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.Type: GrantFiled: November 1, 2022Date of Patent: October 31, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 11796851Abstract: A color conversion panel includes a substrate. A first color conversion layer, a second color conversion layer, and a transmission layer are provided on the substrate. A first scatterer layer is provided between the first color conversion layer and the second color conversion layer. A second scatterer layer is provided between the second color conversion layer and the transmission layer. A light filter layer is provided between the first scatterer layer and the first color conversion layer, between the first scatterer layer and the second color conversion layer, between the second scatterer layer and the second color conversion layer, and between the second scatterer layer and the transmission layer.Type: GrantFiled: October 19, 2021Date of Patent: October 24, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Kyung-Hun Lee
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Patent number: 11796868Abstract: A display panel has a display region including a first display region and a second display region. In an embodiment, the display panel includes sub-pixels located in the display region, an array substrate and the color filter substrate that are opposite to each other, and liquid crystal molecules located between the array substrate and the color filter substrate. In an embodiment, the sub-pixels include first sub-pixels located in the first display region and second sub-pixels located in the second display region. In an embodiment, in the second display region, some of the second sub-pixels are first-type sub-pixels. In an embodiment, the first-type sub-pixel includes a first electrode and a second electrode.Type: GrantFiled: July 1, 2021Date of Patent: October 24, 2023Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Hailiang Wang, Yaying Li, Wenhuan Zhang, Yan Yang, Ting Zhou, Junyi Li
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Patent number: 11791345Abstract: An active matrix substrate includes a first TFT having an oxide semiconductor layer formed from a first oxide semiconductor film and a second TFT having an oxide semiconductor layer formed from a second oxide semiconductor film. The oxide semiconductor layer of each TFT includes a high-resistance region including a channel region and offset regions and low-resistance regions including a source contact region, a drain contact region, and interposed regions. The first TFT has a gate insulating layer including a first insulating film and a second insulating film. The second TFT has a gate insulating layer including the second insulating film but not including the first insulating film. A total length L1 of the offset regions of the first TFT in a channel length direction is greater than a total length L2 of the offset regions of the second TFT in the channel length direction.Type: GrantFiled: December 22, 2021Date of Patent: October 17, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hitoshi Takahata, Tetsuo Kikuchi, Kengo Hara, Setsuji Nishimiya, Masahiko Suzuki, Tohru Daitoh
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Patent number: 11789323Abstract: A liquid crystal display device includes: first and second substrates; a liquid crystal layer interposed between the first and second substrates; a switching element provided on the first substrate; a first pixel electrode provided on the first substrate and electrically connected to a drain electrode of the switching element; an insulating film provided on the first pixel electrode; and a common electrode provided on the insulating film and including a first slit. The first pixel electrode extends in a first direction. The first slit extends in the first direction and is located above the first pixel electrode. In a planar view, both edges of the first pixel electrode in a second direction intersecting the first direction are located inside the first slit.Type: GrantFiled: March 24, 2022Date of Patent: October 17, 2023Assignee: TOPPAN INC.Inventors: Yayoi Nakamura, Kunpei Kobayashi
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Patent number: 11774809Abstract: A transverse electric field type liquid crystal display panel includes a pair of substrates opposed with a liquid crystal layer interposed therebetween. A plurality of sub-pixels having at least one curved portion in a display area are provided in a matrix on one side of the pair of substrates, and a pair of electrodes having at least one curved portion are formed in the plurality of sub-pixels. A light shield layer shielding a non-display area positioned on an outer peripheral side of the display area and between the plurality of sub-pixels is formed on the other side of the pair of substrates. The light shield layer of the non-display area is formed in a shape in which the outermost peripheral side of the display area is rectangular.Type: GrantFiled: May 18, 2021Date of Patent: October 3, 2023Assignee: Japan Display Inc.Inventor: Akio Ota
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Patent number: 11774813Abstract: Provided are a liquid crystal display device that can increase light use efficiency and reduce external light reflection, and a method of producing the liquid crystal display device. The liquid crystal display device sequentially includes, from a back surface side toward a viewing surface side: a first substrate; a liquid crystal layer; and a second substrate, the liquid crystal display device including sub-pixels each including an optical opening allowing light to pass through, the first substrate sequentially including, from the back surface side toward the viewing surface side: a supporting substrate; a metal layer surrounding the optical openings; and a resist layer being superimposed with the metal layer and being in contact with the metal layer, an end of the resist layer being superimposed with an end of the metal layer and having a taper angle ? of 40° or more.Type: GrantFiled: December 9, 2022Date of Patent: October 3, 2023Assignee: Sharp Display Technology CorporationInventors: Yuichi Kawahira, Akira Hirai, Akira Sakai