Patents Examined by Donald L Raleigh
  • Patent number: 11959003
    Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Nayoun Won, Garam Park, Shin Ae Jun, Tae Gon Kim, Taekhoon Kim, Shang Hyeun Park, Mi Hye Lim
  • Patent number: 11953818
    Abstract: A light source apparatus according to an aspect of the present disclosure includes a light emitter, a light guide member, a support member having a groove, and a position restriction member. The light guide member has a first surface and a second surface located at sides opposite from each other in a first direction, a third surface and a fourth surface located at sides opposite from each other in a second direction, and a fifth surface and a sixth surface located at sides opposite from each other in a third direction. The groove has a support surface facing the fourth surface, a first wall surface facing the fifth surface and separate from the fifth surface, and a second wall surface facing the sixth surface and separate from the sixth surface. The position restriction member includes a first placement section and a second placement section.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: April 9, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yuichiro Iwama
  • Patent number: 11953718
    Abstract: A display apparatus and a display method are provided. The display apparatus includes a display panel, a display film assembly, a privacy film assembly, and a light source. The display film assembly includes a first light guide plate and an optical film. The optical privacy film assembly includes a second light guide plate and a privacy film. The privacy film is configured to adjust divergent lights exiting the second light guide plate into privacy lights at a preset angle. The light source is configured to emit incident lights to be selectively irradiated to the first light guide plate or the second light guide plate, so that the display apparatus is able to switch between a normal display mode and a privacy display mode.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Li Wu, Baohong Kang
  • Patent number: 11952528
    Abstract: The present invention relates to an assembly of switching layers for dimming and scattering of light and to window elements comprising the arrangement of switching layers.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: April 9, 2024
    Assignee: MERCK PATENT GMBH
    Inventors: Henriette Bakker, Ties De Jong, Michael Junge, Andreas Beyer, Jasper Van Den Muijsenberg
  • Patent number: 11947149
    Abstract: A display comprises a film-based lightguide, a light source positioned to emit light into the lightguide, and a light turning film with light turning features comprising a first surface with a first coating of a first material with a first refractive index that redirects light extracted from lightguide toward a reflective spatial light modulator wherein the light turning features also comprise a second surface that does not comprise a coating of the first material or comprises a coating of a thickness of the first material less than 500 nanometers. The light turning film may comprise a base layer of a second material with a second refractive index, and the first refractive index is less than the second refractive index. The first surface may be an angled planar surface oriented at an angle the surface of the light turning film or comprise a curved surface.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: April 2, 2024
    Assignee: Azumo, Inc.
    Inventors: Anthony Nichol, Zane Coleman
  • Patent number: 11947042
    Abstract: In an optical emitter device, when point emitters are placed on the focal plane of a lens system, each individual point emitter will point to a specific free space angle depending on the position of the point emitter relative to the longitudinal central axis of the lens system. Point emitters comprising end-fire tapers combined with both a turning mirror and a micro-lens provide improved performance, because, unlike grating couplers, end-fire tapers enable uniform broadband operation with all possible polarization states. A turning mirror may be added to direct the light emission from the end-fire tapers to vertically upwards, which enables both a two-dimensional point emitter array and a more streamlined assembly process.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 2, 2024
    Assignee: Voyant Photonics, Inc.
    Inventors: Sajan Shrestha, Christopher T. Phare, Lawrence Dah Ching Tzuang
  • Patent number: 11947156
    Abstract: The present application provides a display panel and an electronic device. A first sub-backlight module is arranged in a display area of the display panel, and a second sub-backlight module is arranged in an electronic component area. A light guide plate of the second sub-backlight module can be switched between a light-scattering state and a transparent state, so that the electronic component area can display images and take photos. The first light-shielding member is arranged in an accommodating space defined by the display panel body and the backlight module to avoid light leakage during shooting, so that full-screen display can be realized without light leakage.
    Type: Grant
    Filed: September 26, 2021
    Date of Patent: April 2, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Peng Zhang, Chao Wang
  • Patent number: 11943992
    Abstract: A display device includes an optical module, a light emitting structure, a lower substrate including a display area, and in order within the display area a first area corresponding to the optical module, second area adjacent to the optical module, and a third area including the light emitting structure, a light-transmitting filling layer in the first area and corresponding to the optical module, a light blocking layer in the second area and defining an opening corresponding to the light-transmitting filling layer in the first area, and an upper substrate facing the lower substrate with the light emitting structure and the light blocking layer therebetween.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongbeom Hong, Yongsub Shim, Reehyang Kim, Youngjun Yoo
  • Patent number: 11934063
    Abstract: A system may have a display that includes a plurality of light sources such as light-emitting diodes. The display may be an exterior display that is routinely operated in daytime conditions where ambient light levels are very high. To increase contrast in an exterior display, the display may include a sunlight blocking element. A static sunlight blocking element may include a louver film with asymmetric light blocking portions. The system may include an ambient light sensor that is configured to determine ambient light levels. Based on the detected ambient light level, control circuitry in the system may adjust one or more adjustable components in the display. The display may include an adjustable diffuser that has at least two states with different haze levels. The display may include an adjustable tint layer that has at least two states with different transmission levels.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: March 19, 2024
    Assignee: Apple Inc.
    Inventors: Tao Zhan, Yu P Sun, Rong Liu, Yong Seok Choi, Joshua A Spechler, Jun Qi, Victor H Yin
  • Patent number: 11934078
    Abstract: A display panel and a display device are disclosed. The display panel includes a photoresist layer, a liquid crystal layer, and a total reflection layer. Liquid crystal molecules included in the liquid crystal cells have a first refractive index and a second refractive index. The first refractive index is greater than the second refractive index, and a refractive index of the total reflection units matches with the first refractive index. The display panel and the display device not only have advantages of low manufacturing cost and eye protection, but can also achieve color and dynamic display.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: March 19, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qian Deng, Rui He, Changchih Huang, Guanghui Liu
  • Patent number: 11934052
    Abstract: A verification fixture of a curved screen is disclosed. The verification fixture of the curved screen includes a support structure, a backlight module, and an adjusting module. The verification fixture of the curved screen can use the adjusting module to adjust positions of backlight blocks, thereby allowing the verification fixture of the curved screen to have curves having different target curvatures. Therefore, various backlight modules having different curvatures are not needed to assemble with display panels when performing a black screen test on the display panels.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: March 19, 2024
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD.
    Inventor: Baolei Yang
  • Patent number: 11930128
    Abstract: There is provided a dual camera apparatus, an electronic apparatus including the same, and a method of operating the same are disclosed. The dual camera apparatus includes a first camera that acquires an entire image of a subject; and a second camera different than the first camera. The second camera includes a first light source, an optical element concentrates light emitted from the first light source onto a portion of a region of the subject and an image sensor that records spectrum information with respect to the portion of the region of the subject.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youngzoon Yoon, Hyuck Choo
  • Patent number: 11925093
    Abstract: A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: March 5, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunbae Park, Seunghee Lee, Wal Jun Kim, Kiwan Ahn, Joosun Yoon
  • Patent number: 11921373
    Abstract: A backlight includes an extended light source adapted to emit light. A reflective polarizer is disposed on the extended light source, such that for substantially normally incident light and for at least a first wavelength in a range from about 420 nanometer (nm) to about 650 nm, the reflective polarizer reflects at least 60% of the incident light having a first polarization state and transmits at least 60% of the incident light having an orthogonal second polarization state. A first prismatic film is disposed between the extended light source and the reflective polarizer. A retarder layer is disposed between the reflective polarizer and the first prismatic film, such that for substantially normally incident light at a wavelength of about 550 nm, the retarder layer has a retardance nW, where n is an integer ?1 and W is a wavelength between about 160 nm and about 300 nm.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: March 5, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kristy A. Gillette, Michelle L Toy, William Blake Kolb, Jonah Shaver, Jason S. Petaja
  • Patent number: 11921313
    Abstract: The present disclosure relates to a function display for selectively displaying symbols representing switching states for a motor vehicle including a light guide stack of at least two transparent or translucent, planar light guides arranged in an overlaid manner in a stacking direction, which are spaced apart by a transparent or translucent layer including a material that is optically thinner compared to the adjacent light guides so that the light guides have a main surface facing towards an observer and a main surface facing away from the observer that faces towards a light guide which is most closely adjacent in stacking direction; at least one light source per light guide arranged to couple light into the respective light guide via an end face; wherein one light-refractive and/or light-scattering microstructured portion per light guide, which is provided in or on the light guide, is provided for generating a symbol display.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: March 5, 2024
    Assignee: PREH GMBH
    Inventors: Dennis Loeppen, Björn Morber, Kilian Memmel
  • Patent number: 11912920
    Abstract: A quantum dot-polymer composite including a polymer matrix; and core-shell quantum dots dispersed in the polymer matrix, wherein the core-shell quantum dots include a semiconductor nanocrystal core including indium, zinc, and phosphorus and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur. The core-shell quantum dots do not include cadmium, the core-shell quantum dots are configured to emit green light, the core-shell quantum dots have a mole ratio of phosphorus to indium of greater than or equal to about 0.75, and the core-shell quantum dots have a mole ratio of zinc to indium of greater than or equal to about 35, and a method of producing the core-shell quantum dots, and a display device including a light emitting element that includes the quantum dot-polymer composite.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Taekhoon Kim, Nayoun Won, Tae Gon Kim, Mi Hye Lim, Shin Ae Jun, Shang Hyeun Park
  • Patent number: 11917857
    Abstract: Provided are a display module and display device. The display module includes a display panel, a cover plate and a conductive shielding layer. The conductive shielding layer is located on a side of the display panel, and the cover plate is located on a side of the display panel facing away from the conductive shielding layer. The display module includes a conductive film. The conductive film is located on a side of the cover plate facing the conductive shielding layer, and the conductive film is connected to the cover plate and the conductive shielding layer separately.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: February 27, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Shengming Li, Jiang Chen, Jun Huang
  • Patent number: 11914183
    Abstract: A display includes a stack that includes, from top to bottom: a display layer including an array of spaced pixels and/or spaced subpixels and an array of spaced transmission spaces, wherein each transmission space is defined by a spacing between a subset of the spaced pixels and/or spaced subpixels; a micro-lens array (MLA) layer including an array of micro-lenses, wherein each micro-lens includes a curved surface in alignment with a corresponding one of the transmission spaces; and a laser light emitting (LLE) layer including an array laser diodes, wherein each laser diode is positioned in alignment with one micro-lens of the MLA layer and the corresponding one of the transmission spaces of the display layer and the curved surfaces of the micro-lenses face the LLE layer.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: February 27, 2024
    Assignee: II-VI Delaware, Inc.
    Inventors: Jason O'Daniel, Pei-Song Cai, Francesco Schiattone
  • Patent number: 11914241
    Abstract: A high-brightness liquid crystal display device includes a display module; a temperature controller abutting a back surface of the display module, a first ventilation channel being formed in the temperature controller; and fans disposed on the display module in correspondence to the first ventilation channel of the temperature controller. The fans form an airflow that flows through the first ventilation channel, to adjust the temperature of the display module. According to the present invention, the temperature controller abuts the back surface of the display module to implement temperature control on the back surface of the display module. The back surface of the display module is a lamp panel, and the temperature controller abuts the lamp panel. The airflow formed by the fans quickly reduces and increases the temperature of the lamp panel, thereby ensuring that the lamp panel works at an appropriate environmental temperature.
    Type: Grant
    Filed: May 29, 2023
    Date of Patent: February 27, 2024
    Assignee: Keewin Display Co., Ltd.
    Inventors: Qianzhong Zhang, Wen Li, Feng Zhou
  • Patent number: 11906847
    Abstract: A backlight unit includes a light source, a color conversion sheet disposed above the light source for converting a color of light emitted from the light source, and at least one optical film is disposed over the color conversion sheet. The one optical film has a base film, a first pattern layer including first patterns on one surface of the base film, and a second pattern layer disposed on the other surface of the base film and including second patterns different from the first patterns.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 20, 2024
    Assignee: LMS Co., Ltd.
    Inventors: Hyeonuk Park, Byeonghun Lee