Patents Examined by Charles S Chang
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Patent number: 11307472Abstract: A display panel and a display device are provided. The display panel includes a plurality of pixel units, which includes a first pixel unit and a second pixel unit. The first and second pixel units are adjacently arranged in a vertical direction. The first pixel unit includes a first subpixel, and the second pixel unit includes a second subpixel corresponding to the first subpixel. The first subpixel includes a first region and a second region which are vertically arranged. The second region arranged closer to the second subpixel with respect to the first region includes a third region. A transmittance of the first region is smaller than a transmittance of the second region, and the ratio of the area of the second region to the area of the third region is smaller than or equal to 4:6 and greater than or equal to 3:7.Type: GrantFiled: September 27, 2020Date of Patent: April 19, 2022Assignee: HKC CORPORATION LIMITEDInventor: Huailiang He
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Patent number: 11307461Abstract: Provided is a display device. The display device includes a liquid crystal display panel and an optical film disposed above the liquid crystal display panel, the optical film comprising a first pattern layer having a first refractive index and a second pattern layer having a second refractive index different from the first refractive index and disposed on the first pattern layer. The first pattern layer includes a first base part and a plurality of first protrusions. Each of the first protrusions includes a bottom surface adjacent to the first base part, an upper surface facing the bottom surface, and side surfaces between the bottom surface and the upper surface. Each of the side surfaces is perpendicular to the bottom surface and the upper surface.Type: GrantFiled: March 18, 2020Date of Patent: April 19, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jongho Son, Young Gu Kim, Jiyun Park, Jongmin Ok, Sun-Young Chang, Hyelim Jang, Baekkyun Jeon, Kyungseon Tak
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Patent number: 11287705Abstract: The invention concerns a liquid crystal spatial light modulator (101) comprising: a liquid crystal layer (7); and on at least one side of the liquid crystal layer (7), at least one photovoltaic cell (456), each photovoltaic cell (456) comprising a photosensitive layer (5) comprising electron-donating (D) molecules and electron accepting (A) molecules, each photovoltaic cell (456) being arranged for spontaneous photovoltage under illumination. Electron-donating molecules and electron accepting molecules are preferably blended and form preferably an organic bulk heterojunction layer.Type: GrantFiled: July 19, 2018Date of Patent: March 29, 2022Inventors: Thomas M. Heiser, Thomas M. Regrettier, Malgosia Kaczmarek
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Patent number: 11287696Abstract: A liquid crystal display module includes: a liquid crystal panel; a back chassis having a bottom that supports a substrate, the substrate having a plurality of light sources; a frame having four independent wall members respectively extending in parallel to four sides of the liquid crystal panel, the frame supporting the liquid crystal panel; a bezel having four independent plate-like members disposed so as to surround the four sides of the liquid crystal panel and the four independent wall members; an optical film laminate disposed between the liquid crystal panel and the frame; a first reflective sheet opposed to the four independent wall members, and having a bottom face that has a plurality of apertures through which the plurality of light sources are respectively exposed; and four independent second reflective sheets disposed between the liquid crystal panel and the respective four independent wall members.Type: GrantFiled: July 7, 2021Date of Patent: March 29, 2022Assignee: SHARP KABUSHIKI KAISHAInventor: Motoaki Okitsu
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Patent number: 11281040Abstract: A display device is provided and includes first substrate; gate lines extending on first substrate; data lines extending in a direction crossing gate lines; first electrode on first substrate; insulating film on first electrode; second electrode on insulating film, facing first electrode and including connection electrode arranged in parallel with data lines and comb electrodes arranged in parallel with gate lines and slits arranged between comb electrodes; second substrate facing first substrate; liquid crystal layer provided between first and second substrates; and light shielding portion extending along extending direction of gate lines, wherein comb electrodes connected to connection electrode, length of each of slits in extending direction is longer than width of slits in direction orthogonal to extending direction, and in plan view, one of comb electrodes overlaps with light shielding portion.Type: GrantFiled: September 3, 2020Date of Patent: March 22, 2022Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11275273Abstract: An optical device (10) includes a first substrate (11) and a second substrate (12) facing each other, a liquid crystal component (13) between the first substrate (11) and the second substrate (12), a first electrode (18) and a second electrode (19) located on the first substrate (11) on the second substrate (12) side, and a first alignment layer (14) that is located on the first substrate (11) on the second substrate (12) side and controls the alignment state of liquid crystal molecules in the liquid crystal component (13), wherein an interface between the liquid crystal component (13) and the first alignment layer (14) forms a non-glide weak anchoring interface (17).Type: GrantFiled: August 16, 2019Date of Patent: March 15, 2022Assignees: KYOTO UNIVERSITY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, SHARP KABUSHIKI KAISHA, DIC CORPORATIONInventors: Jun Yamamoto, Koki Takamoto, Takeaki Araki, Waki Sakatsuji, Hirotsugu Kikuchi, Yasushi Okumura, Koji Fujikawa, Yu Fukunaga, Kiyoshi Minoura, Koji Murata, Isa Nishiyama, Koichi Endo
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Patent number: 11269227Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.Type: GrantFiled: February 19, 2021Date of Patent: March 8, 2022Assignee: Japan Display Inc.Inventors: Kentaro Okuyama, Yudai Numata
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Patent number: 11264415Abstract: An object is to provide a pixel structure of a display device including a photosensor which prevents changes in an output of the photosensor and a decrease in imaging quality. The display device has a pixel layout structure in which a shielding wire is disposed between an FD and an imaging signal line (a PR line, a TX line, or an SE line) or between the FD and an image-display signal line in order to reduce or eliminate parasitic capacitance between the FD and a signal line for the purpose of suppressing changes in the potential of the FD. An imaging power supply line, image-display power supply line, a GND line, a common line, or the like whose potential is fixed, such as a common potential line, is used as a shielding wire.Type: GrantFiled: April 6, 2021Date of Patent: March 1, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Aoki, Yoshiyuki Kurokawa, Takayuki Ikeda, Hikaru Tamura
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Patent number: 11262635Abstract: A magnet erased writing device or eWriter includes cholesteric liquid crystal material, in which a written image is erased using magnetically activated electronic circuitry. By eliminating the mechanical erase button of Prior Art eWriters, the eWriter can be designed with a display footprint that can cover nearly the entire face of the eWriter. An erasing magnet can be used with the device, which can be handheld as, for example, by being part of a stylus. With the erasing magnet separated from the device and the mechanical erase button being omitted, the eWriter avoids unintentional erasures, a drawback of Prior Art eWriters.Type: GrantFiled: February 5, 2021Date of Patent: March 1, 2022Assignee: Kent Displays, Inc.Inventors: Anthony Daniels, Todd Ernst, Nathan Hirt
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Patent number: 11262578Abstract: An image forming system includes a spatial light modulator (SLM) including a plurality of pixels. Each pixel is configured to diffract incident light and cause the diffracted light to exit the SLM, where a first diffraction order of light exiting the SLM passes through a first exit pupil and higher diffraction orders of light exiting the SLM pass through additional exit pupils having different positions from the first exit pupil. Control logic operatively coupled to the plurality of pixels is configured to control each pixel to control its modulation of the light incident on the pixel and cause the plurality of pixels to collectively form an image at each exit pupil. A light source is configured to emit incident light toward the SLM. A resampling layer is configured to subsample each pixel electrode with two or more samples per pixel to increase a spacing between each exit pupil.Type: GrantFiled: March 15, 2019Date of Patent: March 1, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Joel Steven Kollin, Andreas Georgiou
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Patent number: 11256121Abstract: The present invention provides a liquid crystal display (LCD) device for an under-screen identification scheme. The LCD device for the under-screen identification scheme comprises a liquid crystal module, a backlight module, an under-screen sensor, and a micro light emitting diode (LED) module. The liquid crystal module defines a liquid crystal module operable region and a digging region adjacent to the liquid crystal module operable region. Therefore, there is no display interruption and discontinuous boundaries in the vision, and can achieve a complete full-screen design.Type: GrantFiled: October 24, 2019Date of Patent: February 22, 2022Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventor: Guowei Zha
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Patent number: 11256127Abstract: A display substrate, a display panel and a display device are provided. The display substrate includes a plurality of pixel groups arranged in a first direction. Each pixel group at least includes a first pixel column and a second pixel column arranged sequentially along the first direction. The first pixel column includes one first display pixel or a plurality of first display pixels arranged in a second direction interesting with the first direction. The second pixel column includes one second display pixel or a plurality of second display pixels arranged in the second direction. The outline of the display area of the display substrate includes a first outline section not parallel to either the second direction or the first direction.Type: GrantFiled: December 14, 2017Date of Patent: February 22, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Yan Wang, Xuelu Wang, Huilian Wang, Jie Tong, Peimao Li, Kai Chen, Xiaofeng Zhang, Ruichao Liu, Dongdong Song, Wei Wei, Tianhui Liu
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Patent number: 11256145Abstract: A flat panel display is provided. The flat panel display comprises: two substrates disposed opposite each other, a display medium disposed between the substrates, and a photo spacer region where a plurality layout units are distributed, and the layout units are disposed between the substrates. An area of one of the layout units at a central portion of the substrate is larger than an area of another layout unit at a peripheral portion of the substrate.Type: GrantFiled: October 30, 2017Date of Patent: February 22, 2022Assignee: HKC CORPORATION LIMITEDInventor: JianFeng Shan
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Patent number: 11256010Abstract: A surface light source, comprising a waveguide layer and a grating structure; the waveguide layer has a first surface and a second surface opposite to each other; the grating structure is provided on the first or second surface of the waveguide layer; and the grating structure is used for guiding light incident to the grating structure to the waveguide layer and performing total reflection propagation in the waveguide layer. Such surface light source structure enables energy and direction of light emitted from a light field modulation layer to be distributed uniformly, and thus the thickness of the surface light source and the number of LEDs in the surface light source are reduced. Also disclosed is a display device.Type: GrantFiled: June 11, 2018Date of Patent: February 22, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Xiandong Meng, Wei Wang, Xue Dong, Jing Lv, Xiaochuan Chen, Jifeng Tan, Jian Gao, Xianqin Meng
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Patent number: 11251202Abstract: A thin film transistor (TFT) array substrate and a display panel are provided. The TFT array substrate has a base substrate, an anti-reflection layer, and a gate electrode insulating layer. The TFT array substrate has a light-transmitting region. The anti-reflection layer is disposed on the base substrate of the light-transmitting region. The gate electrode insulating layer is disposed on the anti-reflection layer. Light refractive indexes of the base substrate, the anti-reflection layer, and the gate electrode insulating layer are increasing sequentially.Type: GrantFiled: May 28, 2019Date of Patent: February 15, 2022Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chaode Mo
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Patent number: 11249347Abstract: A display apparatus includes LEDs disposed behind a display panel; a bottom chassis to accommodate the LEDs; and a reflective member disposed on the bottom chassis. The reflective member includes a reflective inclined portion obliquely formed to face a rear surface of the display panel and including first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each of which is provided between two neighboring first regions. The first regions include light adjusting members, and each of the second regions has a reflective characteristic different from a reflective characteristic of a neighboring first region. Each of the first regions includes a group of light adjusting members which is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion. The two neighboring first regions have more light adjusting members, respectively, than one of the second regions disposed therebetween.Type: GrantFiled: September 30, 2020Date of Patent: February 15, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Patent number: 11249364Abstract: The present application discloses a display panel and a method for manufacturing a first substrate thereof. The display panel includes a first substrate which is provided with a thin film transistor. The thin film transistor includes a gate, a source and a drain. Light shielding layers are disposed on the outer side of the source and the outer side of the drain.Type: GrantFiled: October 23, 2018Date of Patent: February 15, 2022Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Kaijun Liu, En-Tsung Cho
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Patent number: 11249356Abstract: A base substrate includes a first base layer and an electrostatic resistant layer that are disposed in a stack.Type: GrantFiled: March 27, 2019Date of Patent: February 15, 2022Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Qin, Yonggang Du, Xiangzhen Wang, Bin Wu, Guohua Xu
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Patent number: 11243443Abstract: An optical system with an electronically variable iris. The optical system comprises an optical lens. A number of transparent conductive layers is coupled to an optical surface of the optical lens. A liquid crystal film is separated into a number of portions by the number of transparent conductive layers, wherein a transmissive state of each portion, from the number of portions of the liquid crystal film, with respect to light is configured to change in response to application of a voltage to the number of transparent conductive layers.Type: GrantFiled: April 8, 2020Date of Patent: February 8, 2022Assignee: The Boeing CompanyInventor: Mark Joseph Clemen, Jr.
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Patent number: 11242975Abstract: Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.Type: GrantFiled: July 5, 2016Date of Patent: February 8, 2022Assignee: Saturn Licensing LLCInventors: Takeshi Nishimura, Takuya Shima