Patents Examined by David Y. Chung
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Patent number: 11181789Abstract: A liquid crystal display device includes: a display panel; a light source which provides a light to the display panel; a light guide plate which receives the light from the light source on a surface thereof and guides the light to another surface thereof; a polarization member on a surface of the display panel facing the light guide plate; and a frame chassis comprising a fastening portion inserted in a space between the display panel and the light guide plate. The fastening portion has a thickness substantially equal to a thickness of the polarization member.Type: GrantFiled: February 22, 2018Date of Patent: November 23, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Luly Lee, Jaesang Lee
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Patent number: 11175527Abstract: Disclosed are a reflective color filter substrate and driving method thereof, and a display panel and a display device. The substrate includes color-resist elements in an array, each color-resist element includes a first and second electrode arranged opposite to each other, and a color-resist structure located between the first and second electrodes; and in each color-resist element: the first electrode is a light-transmission electrode; the first and second electrodes are configured to generate a first electric field, and the color-resist elements are configured to be driven by the first electric field to reflect light rays incident on the first electrode as monochromatic light; and the first and second electrodes are configured to generate a second electric field, and the color-resist elements are configured to be driven by the second electric field to reflect the light rays incident on the first electrode as hybrid light of monochromatic light and white light.Type: GrantFiled: August 28, 2019Date of Patent: November 16, 2021Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ye Hu, Wen Zha, Xin Chen, Qingna Hou
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Patent number: 11143902Abstract: A total-reflection infrared reflection device and a preparation method thereof. The device includes two light-transmitting conductive substrates disposed oppositely, the two light-transmitting conductive substrates are packaged to form a seal cavity, in the seal cavity, opposite surfaces of the two light-transmitting conductive substrates are respectively coated with a first liquid crystal layer capable of reflecting left-handed polarized light and a second liquid crystal layer capable of reflecting right-handed polarized light, the first liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a left-handed spiral structure, the second liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a right-handed spiral structure, the cholesteric liquid crystal with the left-handed spiral structure can reflect left-handed polarized light, and the cholesteric liquid crystal with the right-handed spiral structure can reflect right-handed polarized light.Type: GrantFiled: November 15, 2017Date of Patent: October 12, 2021Assignees: SOUTH CHINA NORMAL UNIVERSITY, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., G.H.S ADVANCED EQUIPMENT TECHNOLOGY CO., LTD.Inventors: Guofu Zhou, Xiaowen Hu, Nan Li
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Patent number: 11137619Abstract: A display device for virtual reality, a viewing device for virtual reality and a head-mounted display apparatus are provided. The display apparatus includes: a display panel; a first polarizer which is disposed on a first surface of the display panel and includes a plurality of first regions and a plurality of second regions, the plurality of first regions and the plurality of second regions being alternately distributed in a first direction, wherein a polarization direction of each of the plurality of first regions is perpendicular to a polarization direction of each of the plurality of second regions.Type: GrantFiled: May 28, 2019Date of Patent: October 5, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenyu Li, Yukun Sun, Yali Liu, Hao Zhang, Lili Chen, Jinghua Miao, Xuefeng Wang, Xi Li, Bin Zhao, Lixin Wang, Jianwen Suo, Qingwen Fan, Jinbao Peng
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Patent number: 11085593Abstract: A display device includes: a display panel; a backlight that emits light toward a rear face of the display panel; a first optical sheet disposed between the display panel and the backlight; a second optical sheet disposed between the first optical sheet and the backlight; and a supporting member that supports an outer peripheral part of the first optical sheet. The first optical sheet includes a first sheet main body portion, and a first supporting piece that protrudes to a side direction from an outer peripheral part of the first sheet main body portion and is supported by the supporting member. The second optical sheet includes a second sheet main body portion, and a flat portion that is formed into a flat shape in an outer peripheral part of the second sheet main body portion and is disposed so as to correspond to the first supporting piece.Type: GrantFiled: March 19, 2018Date of Patent: August 10, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akihiko Sasaki, Mitsuhiro Namikoshi, Ryouta Nakayama
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Patent number: 11075232Abstract: A display device in which a peripheral circuit portion has high operation stability is provided. The display device includes a first substrate and a second substrate. A first insulating layer is provided over a first surface of the first substrate. A second insulating layer is provided over a first surface of the second substrate. The first surface of the first substrate and the first surface of the second substrate face each other. An adhesive layer is provided between the first insulating layer and the second insulating layer. A protective film in contact with the first substrate, the first insulating layer, the adhesive layer, the second insulating layer, and the second substrate is formed in the vicinity of a peripheral portion of the first substrate and the second substrate.Type: GrantFiled: July 25, 2019Date of Patent: July 27, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Takashi Hamada, Kohei Yokoyama, Yasuhiro Jinbo, Tetsuji Ishitani, Daisuke Kubota
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Patent number: 11067843Abstract: A display device for a head-mounted display includes a first display panel and a second display panel that are arranged in parallel. The first display panel and second display panel each include a pair of substrates having a plane sectioned into a display region and a non-display region, and a columnar spacer interposed between the substrates. The substrate includes a spacer lightproof portion placed over the spacer. The first display panel and second display panel do not coincide with each other with regard to a location where the spacer lightproof portion in the display region is disposed.Type: GrantFiled: March 30, 2020Date of Patent: July 20, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Kuniaki Okada, Hiromi Katoh, Keisuke Yoshida
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Patent number: 11037516Abstract: A display device includes a display panel including a display area and a peripheral area; a data pad portion transferring a data voltage; and a control pad portion transferring a control voltage, the data pad portion includes: a first data pad portion in a first row of the first pad portion, a second data pad portion in a second row of the first pad portion; a third data pad portion in a first row of a second pad portion; and a fourth data pad portion in a second row of the second pad portion, and the control pad portion includes: a first control pad portion at a left side of the second data pad portion in the second row of the first pad portion; and a second control pad portion at a right side of the fourth data pad portion in the second row of the second pad portion.Type: GrantFiled: March 24, 2020Date of Patent: June 15, 2021Inventors: Dong Hee Shin, Geun Ho Lee, Yong Hee Lee
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Patent number: 11009754Abstract: An object of the present invention is to provide a decorative sheet exhibiting high lustrousness even when observed from a direction deviated from a specular reflection of illumination light, and a liquid crystal display device and an automobile interior material each using the decorative sheet. The object is achieved by a decorative sheet including a cholesteric liquid crystal layer having wavelength-selective reflectivity and satisfying Expression (1), R[?45,20](?1)/R[?45,20](?2)?5??Expression (1).Type: GrantFiled: February 28, 2019Date of Patent: May 18, 2021Assignee: FUJIFILM CorporationInventors: Nobuhiko Ichihara, Yujiro Yanai, Rikio Inoue, Michio Nagai, Jun Takeda
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Patent number: 11003040Abstract: A grating structure includes slit regions (4) and light blocking regions (5) that are alternately distributed in a first direction. The slit regions (4) and the light blocking regions (5) extend in a second direction, and the first direction is perpendicular to the second direction. The grating structure further includes two electrode plates (10, 20) disposed oppositely, and a plurality of support columns (3) disposed between the two electrode plates (10, 20) and supporting them. At least two of the support columns (3) are spaced apart in the first direction are arranged in each of the slit regions (4).Type: GrantFiled: December 17, 2018Date of Patent: May 11, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chenyu Chen, Zhongxiao Li, Xiaoehen Niu, Jinye Zhu, Wenqing Zhao, Xiaochuan Chen
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Patent number: 11003005Abstract: A display apparatus includes a plurality of pixel units and each pixel unit includes a substrate, a first electrode, a second electrode, an image display part and a protective layer. The first electrode is formed on the substrate. The second electrode is formed over the first electrode while interposing a first insulating layer therebetween to define a TSC (tunnel-shaped cavity) extending in a first direction between the first and second electrodes. The image display part is provided in the TSC to display an image according to an electric field generated by the first and second electrodes. The protective layer covers the second electrode and seals the TSC. The display apparatus having the above structure is manufactured by forming the first electrode, a sacrificial layer and the second electrode and forming the image display part by removing the sacrificial layer.Type: GrantFiled: December 15, 2017Date of Patent: May 11, 2021Inventors: Yeun Tae Kim, Hee-Keun Lee, Pilsook Kwon, Sangil Kim, Nakcho Choi
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Patent number: 10996515Abstract: A color conversion panel according to an exemplary embodiment of the present invention includes an substrate, first, second, and third color conversion layers on the substrate and configured to emit lights of different colors, and a light blocking member between adjacent ones of the first, second, and third color conversion layers, wherein any one of the first, second, and third color conversion layers and the light blocking member is soluble.Type: GrantFiled: August 22, 2016Date of Patent: May 4, 2021Assignee: Samsung Display Co., Ltd.Inventors: Yong Seok Kim, Seong Gyu Kwon, Young Min Kim, Ki Soo Park, Hae Il Park
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Patent number: 10996502Abstract: A display panel includes a substrate and active switches disposed on the substrate. A light-obstructing layer is disposed between the active switches and the substrate. Each of the active switches includes a semiconductor layer. The light-obstructing layer entirely covers the semiconductor layer.Type: GrantFiled: June 20, 2017Date of Patent: May 4, 2021Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Chung-Kuang Chien
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Patent number: 10989967Abstract: A liquid crystal panel (display panel) 11 includes a display area AA configured to display images, a non-display area NAA outside the display area AA, a light blocking layer (a light blocking portion) 11i disposed at least in the non-display area NAA and configured to block light, a signal line connection line (a narrow line portion) 29 where lines are arranged at intervals in the non-display area NAA, and a common electrode connection line portion (a wide line portion) 30 disposed in the non-display area and having a line width greater than that of the signal line connection line 29 and including empty portions 34.Type: GrantFiled: July 2, 2019Date of Patent: April 27, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Ryosuke Yuminami, Masakazu Miyamoto, Masahiro Yoshida, Masayuki Takashima, Toshiaki Fujihara
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Patent number: 10989951Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including an upper glass substrate and a lower glass substrate that are disposed opposite each other with a liquid crystal layer interposed therebetween, a glass diffuser plate provided on a back surface of the liquid crystal display panel, an adhesive layer provided at an edge between the liquid crystal display panel and the glass diffuser plate, a light source provided at a back surface of the glass diffuser plate, and a cover bottom including a vertical portion that supports an edge of the glass diffuser plate at the back surface of the glass diffuser plate and is opposite to a side of the light source, and a horizontal portion that is extended from the vertical portion and is opposite to a back surface of the light source.Type: GrantFiled: December 28, 2017Date of Patent: April 27, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Jinseo Park, Youngkyu Bang, Sunghwan Yoon, Yongik Hwang
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Patent number: 10985219Abstract: A display device includes a cover plate, a display screen and a photoreceptor, the cover plate is disposed on the display screen, and the cover plate is provided with a light shielding layer. The light shielding layer is provided with a light transmitting area, and the photoreceptor is disposed corresponding to the light transmitting area. The display device of the present application can improve the photographic properties and the accuracy of the photoreceptor, and make it easier to assemble, and reduce assembly steps.Type: GrantFiled: February 1, 2019Date of Patent: April 20, 2021Assignee: KunShan Go-Visionox Opto-Electronics Co., Ltd.Inventors: Xiaofei Xue, Bo Jin, Zhihua Zhang
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Patent number: 10976593Abstract: A filter structure, a display substrate, a display panel and a display device are provided. The filter structure includes a first refractive index match layer, a waveguide layer, a second refractive index match layer and a grating layer, that are stacked, the waveguide layer is located between the first refractive index match layer and the second refractive index match layer, the second refractive index match layer is located between the waveguide layer (112) and the grating layer, and refractive index of the first refractive index match layer and refractive index of the second refractive index match layer both are smaller than refractive index of the waveguide layer.Type: GrantFiled: February 12, 2018Date of Patent: April 13, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jifeng Tan, Xianqin Meng, Yafeng Yang, Xiandong Meng, Wei Wang, Jian Gao
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Patent number: 10962832Abstract: A display device is disclosed. The display device includes display unit and a negative refractive index functional layer on the display unit. The negative refractive index functional layer has a negative refractive index with respect to light from the display unit. A method for fabricating the display device is also disclosed.Type: GrantFiled: May 11, 2018Date of Patent: March 30, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dongsheng Li, Huili Wu, Jifeng Tan
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Patent number: 10942407Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.Type: GrantFiled: December 23, 2019Date of Patent: March 9, 2021Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Ikuko Mori, Munenori Motooka, Ryutaro Oke, Kazunori Ojima, Kikuo Ono
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Patent number: 10921624Abstract: The present disclosure relates to a display panel and a method for manufacturing the same. The display panel includes an infrared receiver. The infrared receiver is disposed on a substrate and is located on one side of the substrate which is close to a light emitting surface, wherein the infrared receiver is configured to receive infrared light incident through the light emitting surface.Type: GrantFiled: October 12, 2018Date of Patent: February 16, 2021Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Shicheng Sun, Zhiqiang Wang, Peirong Huo, Jianfei Tian, Delong Zhong, Shuang Hu