Patents Examined by Phu Vu
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Patent number: 11874549Abstract: Provided are an optical element that can achieve both color difference control and luminance reduction at an oblique viewing angle, and a liquid crystal display device including the optical element and having excellent display quality. The optical element includes: a first polarizer; a first phase difference layer; a second phase difference layer; and a second polarizer, the first polarizer, the first phase difference layer, the second phase difference layer, and the second polarizer being arranged in the stated order, the first phase difference layer satisfying the formula nx>ny?nz, the second phase difference layer satisfying the formula nz>nx?ny, the first polarizer and the second polarizer being linear polarizers, transmission axes of the first polarizer and the second polarizer being parallel to each other, a slow axis of the first phase difference layer being orthogonal to a polarization axis of the first polarizer.Type: GrantFiled: May 19, 2023Date of Patent: January 16, 2024Assignee: Sharp Display Technology CorporationInventors: Ryosuke Saigusa, Akira Sakai, Yuichi Kawahira, Masahiro Hasegawa
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Patent number: 11874547Abstract: A film wrapping display includes a display device configured to display information in a display area by emitting light, a transparent plate disposed on a display surface side of the display device, a bezel disposed around a periphery of the display device and including a support portion that supports the transparent plate, and a film continuously attached to both of the transparent plate and the bezel. A periphery of the display area where the transparent plate is supported by the support portion is an edge portion. The edge portion includes a decorative layer whose pattern or color is different from that of the display area.Type: GrantFiled: June 30, 2021Date of Patent: January 16, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Motonari Ogura, Kaname Tomita
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Patent number: 11860483Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.Type: GrantFiled: April 3, 2023Date of Patent: January 2, 2024Assignee: Japan Display Inc.Inventors: Tomonori Nishino, Masato Shimura, Tomokazu Ishikawa, Yuki Kuramoto, Satoshi Hashimoto
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Patent number: 11852932Abstract: In a display device having high reliability, even if being a narrow framing type, and a method for manufacturing thereof, having a display panel, being made up with a first substrate 101 and a second substrate 201, which are adhered with using a seal 301, a main SOC 302 is disposed like a wall, on a peripheral end portion of the first substrate 101 and the second substrate 201, and the seal 301 is disposed inwardly of the main SOC 302. Also, in a method for manufacturing thereof, the main SOC 302 is formed in a region including a cutting plane between the display panel regions neighboring with, and on the cutting plane is made the cutting thereof.Type: GrantFiled: December 28, 2022Date of Patent: December 26, 2023Assignee: Japan Display Inc.Inventor: Eisuke Hatakeyama
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Patent number: 11852912Abstract: A color filter substrate is disclosed, including a substrate, a black matrix layer, a first groove, and a reflective layer. The substrate includes a display area and a non-display area disposed surrounding the display area. The black matrix layer is arranged on the substrate, and includes a first black matrix layer arranged in the display area and a second black matrix layer formed in the non-display area. The first groove is defined in the second black matrix layer, and the reflective layer covers the first groove.Type: GrantFiled: December 30, 2021Date of Patent: December 26, 2023Assignee: HKC CORPORATION LIMITEDInventors: Jie Wang, Fulin Deng, Rong Tang, Jianying Zhang, Haoxuan Zheng
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Patent number: 11841588Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.Type: GrantFiled: March 6, 2023Date of Patent: December 12, 2023Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11841595Abstract: To suppress a variation in characteristics of a transistor due to a released gas from an organic insulating film so that reliability of a display device is increased. The display device includes a transistor, an organic insulating film which is provided over the transistor in order to reduce unevenness due to the transistor, and a capacitor over the organic insulating film. An entire surface of the organic insulating film is not covered with components (a transparent conductive layer and an inorganic insulating film) of the capacitor, and a released gas from the organic insulating film can be released to the outside from exposed part of an upper surface of the organic insulating film.Type: GrantFiled: December 21, 2022Date of Patent: December 12, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masatoshi Yokoyama, Shigeki Komori, Manabu Sato, Kenichi Okazaki, Shunpei Yamazaki
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Patent number: 11835805Abstract: An electronic device includes a first substrate; a second substrate arranged opposite to the first substrate; a first electrode layer disposed on the first substrate; a display medium layer disposed between the first electrode layer and the second substrate; and a first metal element, wherein the first metal element is fixed on the first electrode layer through a conductive glue and an insulating glue; wherein in a normal direction of the first substrate, the conductive glue and the insulating glue are overlapped.Type: GrantFiled: May 20, 2022Date of Patent: December 5, 2023Assignee: INNOLUX CORPORATIONInventors: Wen-Cheng Huang, Bi-Ly Lin, Chia-Chun Yang, Ying-Jung Wu, Chien-Wei Tseng
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Patent number: 11839025Abstract: A flexible printed circuit and manufacturing method thereof, and a displaying device. A wiring layer is arranged on a flexible substrate, a reinforcing layer is arranged on a side of the flexible substrate away from the wiring layer, the wiring layer comprises a plurality of signal wirings arranged along a first wiring area, a second wiring area, a third wiring area and a fourth wiring area, and the reinforcing layer comprises a first reinforcing structure located in the second wiring area and a second reinforcing structure located in the fourth wiring area. The impact strength of the flexible printed circuit is increased by arranging the first reinforcing structure in the second wiring area of the flexible substrate and arranging the second reinforcing structure in the fourth wiring area of the flexible substrate.Type: GrantFiled: September 24, 2021Date of Patent: December 5, 2023Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xiaoxia Wang, Shouyang Leng, Qing Ma, Rui Han, Jie Yu, Dong Cui, Pengtao Li, Tielei Zhao, Chunhua Wang, Xiaoqiao Dong, Yaoyao Wang, Jing Yu
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Patent number: 11822187Abstract: A technique comprising: providing on an outer side of a support film of a liquid crystal cell one or more first components having an oxygen transmission rate (OTR) at least 100,000 times lower than said support film of the liquid crystal cell; wherein the method further comprises interposing a preprepared oxygen-permeable adhesive film between said support film of the liquid crystal cell and an innermost one of said one or more first components; wherein the pre-prepared oxygen-permeable adhesive film has a thickness greater than another adhesive film provided on said outer side of said support film outside of said innermost one of said one or more first components.Type: GrantFiled: April 30, 2019Date of Patent: November 21, 2023Assignee: Flexenable Technology LimitedInventors: Francesca Bottacchi, Jan Jongman, Jonathan Huggins
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Patent number: 11809029Abstract: An electromagnetic wave emitting structure is provided in this disclosure. The electromagnetic wave emitting structure includes a substrate and a plurality of electromagnetic wave emitting units. The substrate has a first flat part and a foldable part connected with the first flat part. The plurality of electromagnetic wave emitting units are disposed on the substrate. Two adjacent ones of the plurality of electromagnetic wave emitting units on the first flat part have a first pitch in a first direction parallel to a surface of the first flat part, and another two adjacent ones of the plurality of electromagnetic wave emitting units on the foldable part have a second pitch in a second direction parallel to a surface of the foldable part. The second pitch is different from the first pitch.Type: GrantFiled: September 12, 2022Date of Patent: November 7, 2023Assignee: InnoLux CorporationInventors: Yu-Chih Tseng, Yu-Chia Huang, Chu-Hong Lai
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Patent number: 11796855Abstract: A display panel includes a light guide plate fixed on a rear surface of a substrate via an adhesive layer, and a light guide plate fixed on a front surface of a substrate via an adhesive layer, a light source unit having light emitting diode elements, arranged on the rear surface of the substrate, and arranged at a position facing a side surface of the light guide plate, and a light source unit having a plurality of light emitting diode elements, arranged on the front surface of the substrate, and arranged at a position facing a side surface of the light guide plate. Refractive index of one of the adhesive layer and the adhesive layer is lower than refractive index of the other. The side surface of the light guide plate and the side surface of the light guide plate are on the same side in a first direction.Type: GrantFiled: February 14, 2023Date of Patent: October 24, 2023Assignee: Japan Display Inc.Inventor: Makoto Miyao
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Patent number: 11796840Abstract: An electrically controlled polarization rotator is disclosed. The electrically controlled polarization rotator includes two substrates and a liquid crystal layer located between the two substrates. The two substrates have a homogeneous alignment and a homeotropic alignment respectively. A distance between the two substrates is a liquid crystal thickness. A switching electric field which is adjustable is provided between the two substrates. A polarized light is incident on the substrate having the homogeneous alignment. A polarization direction of the polarized light is orthogonal or parallel to an alignment direction of the substrate having the homogeneous alignment. A birefringence of the liquid crystal layer multiplied by the liquid crystal thickness and further divided by a wavelength of the polarized light is greater than 10. The polarization direction of the polarized light is rotated corresponding to an intensity of the switching electric field in the liquid crystal layer.Type: GrantFiled: September 27, 2021Date of Patent: October 24, 2023Assignee: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tsung-Hsien Lin, Heng-Yi Tseng, Cheng-Chang Li, Duan-Yi Guo, Li-Min Chang, Kuan-Wu Lin
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Patent number: 11796863Abstract: A multiview display including a LCD panel for generating first and second images, a backlight including first and second light sources, the first light source illuminating the LCD panel the first image is generated and the second light source illuminating the LCD panel when the second image is generated, optical devices between the backlight and the LCD panel and including: an aperture mask comprising a plurality of apertures, the aperture mask blocking light from the light sources from reaching opposite viewing zones, and a lenticular sheet positioned adjacent to the aperture mask, first and second diffusers disposed between the backlight and the optical devices, and arranged for diffusing light horizontally and vertically, where a longitudinal axis of each aperture has an angle of 5 to 30 degrees.Type: GrantFiled: April 28, 2023Date of Patent: October 24, 2023Assignee: Realfiction Lab ApsInventors: Steen Iversen, Flemming Skriver Kloster
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Patent number: 11782299Abstract: According to one embodiment, a display device includes a sheet-like display panel having a first area, second and third areas, and a support substrate bonded to the display panel. The support substrate has a first support portion overlapping the first area, second and third support portions overlapping the second area, fourth and fifth support portions overlapping the third area, a first groove between the first and second support portions, a second groove between the second and third support portions, a third groove between the first and fourth support portions, and a fourth groove between the fourth and fifth support portions. The first and second grooves extend along the second direction. The third and fourth grooves extend along a first direction.Type: GrantFiled: December 20, 2021Date of Patent: October 10, 2023Assignee: Japan Display Inc.Inventors: Mao Izawa, Masaaki Takuma, Hisanori Kawakami
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Patent number: 11782196Abstract: Provided are a cholesteric liquid crystal layer that diffracts specific circularly polarized light in a specific wavelength range by transmission, and a method of forming the cholesteric liquid crystal layer. The cholesteric liquid crystal layer is obtained by immobilizing a cholesteric liquid crystalline phase, in which the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, in a cross-section of the cholesteric liquid crystal layer observed with a scanning electron microscope, bright portions and dark portions derived from the cholesteric liquid crystalline phase are tilted at 80° or more with respect to a main surface of the cholesteric liquid crystal layer.Type: GrantFiled: November 12, 2021Date of Patent: October 10, 2023Assignee: FUJIFILM CorporationInventors: Katsumi Sasata, Hiroshi Sato, Yukito Saitoh
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Patent number: 11774763Abstract: The invention is directed to a microdisplay of an optical device, comprising: a light source; an optical element, disposed on the light exit side of the light source to adjust the light path of the light source; an LCoS substrate, a shape of which exhibits a notch in at least one dimension, the light source projected onto the LCoS substrate, the LCoS substrate reflects the light source entering the notch; and a spatial light modulator, after an outgoing light reflected by the LCoS substrate, the outgoing light enters the spatial light modulator; the spatial light modulator adjusts an azimuth angle of a liquid crystal layer to eliminate noise of the outgoing light; wherein, the outgoing light adjusted by the spatial light modulator is projected onto a eyepieces to display images without the fringe field effects.Type: GrantFiled: September 23, 2022Date of Patent: October 3, 2023Inventor: Cheng-Hsing Liao
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Patent number: 11776483Abstract: It is an object to decrease the number of transistors connected to a capacitor. In a structure, a capacitor and one transistor are included, one electrode of the capacitor is connected to a wiring, and the other electrode of the capacitor is connected to a gate of the transistor. Since a clock signal is input to the wiring, the clock signal is input to the gate of the transistor through the capacitor. Then, on/off of the transistor is controlled by a signal which synchronizes with the clock signal, so that a period when the transistor is on and a period when the transistor is off are repeated. In this manner, deterioration of the transistor can be suppressed.Type: GrantFiled: December 5, 2022Date of Patent: October 3, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Atsushi Umezaki
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Patent number: 11774812Abstract: According to one embodiment, an optical control device includes a first liquid crystal cell and a second liquid crystal cell. The second liquid crystal cell is stacked on the first liquid crystal cell. The first liquid crystal cell has a function of modulating and converting a first polarization component of incident light into a second polarization component, and hardly modulating and converting a third polarization component of incident light into a fourth polarization component. The second liquid crystal cell has a function of hardly modulating the second polarization component transmitted through the first liquid crystal cell, and modulating the fourth polarization component transmitted through the first liquid crystal cell.Type: GrantFiled: March 18, 2022Date of Patent: October 3, 2023Assignee: Japan Display Inc.Inventors: Masashi Mitsui, Takeo Koito, Tae Kurokawa
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Patent number: 11774793Abstract: According to one embodiment, an electronic apparatus includes a first substrate, a second substrate opposed to the first substrate, a liquid crystal layer held between the first substrate and the second substrate, an active area in which pixels are arranged, and a peripheral area positioned in a periphery of the active area. The peripheral area includes a drive element area in which a drive element configured to drive each of the pixels is arranged.Type: GrantFiled: August 19, 2022Date of Patent: October 3, 2023Assignee: JAPAN DISPLAY INC.Inventors: Toshiharu Matsushima, Yukiya Hirabayashi