Particular Illumination Patents (Class 349/61)
With integral optical element for guiding or distributing light from the light source (Class 349/62)
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Patent number: 11668863Abstract: An embodiment relates to an optical polyester film. The optical polyester film according to one embodiment can minimize the difference between the orientation angle at the center and the orientation angle at the end of the film while producing a difference between the tensile strengths in the lengthwise/widthwise directions of the film, thereby increasing mechanical strength and brightness and suppressing the occurrence of polarization Mura defects. Further, the optical polyester film employs a single layer film, and thus is more easily processed and has a slimmer thickness. Therefore, the optical polyester film can be usefully applied to small-sized thin film display devices and, specifically, can be favorably used as a substrate material of a prism sheet or a polarized reflection sheet.Type: GrantFiled: May 25, 2018Date of Patent: June 6, 2023Assignee: SK MICROWORKS CO., LTD.Inventors: Young Min Heo, Sechul Lee, Seungwon Lee, Dawoo Jeong, Jung Kyu Lee
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Patent number: 11670243Abstract: A display device includes a display panel with a first display area having a first light transmittance and a second display area having a second light transmittance higher than the first light transmittance. The display device also includes a driving controller which divides an image signal into a first image signal corresponding to a first pixel unit in the first display area and a second image signal corresponding to a second pixel unit and a non-pixel unit adjacent to the second pixel unit. The display controller calculates the second image signal with a preset kernel matrix, and outputs a data signal corresponding to the second pixel unit in the second display area.Type: GrantFiled: August 4, 2021Date of Patent: June 6, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Deokhwa Woo, Jeonkyoo Kim, Kuk-Hwan Ahn, Myungwoo Lee, Bitna Lee, Manseung Cho
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Patent number: 11663985Abstract: The present application provides a backlight module and a display device. The present application converts a display image into control information through a driver board, and can precisely control a mini-LED backlight. The driver board is provided with multiple interfaces for transmitting control signals based on different transmission protocols, so the compatibility of the entire display device is improved. In addition, the driver board can be continuously updated by using programmable devices to meet the needs of users.Type: GrantFiled: December 21, 2020Date of Patent: May 30, 2023Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Xiaoli Fang, Yu Wu, Yuhong Fu, Guangxing Xiao
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Patent number: 11650640Abstract: A display device includes a display panel, and a heat-dissipating member disposed on the display panel and including a conductive metal. The display device further includes a sound generator disposed on the heat-dissipating member and generating sound by vibrating the display panel and the heat-dissipating member. The display device additionally includes a display circuit board disposed on the heat-dissipating member. The heat-dissipating member includes openings and a first line formed in the openings, and the first line electrically connects the sound generator with the display circuit board.Type: GrantFiled: December 26, 2019Date of Patent: May 16, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong Hee Won, Jung Hun Noh, Yi Joon Ahn
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Patent number: 11644609Abstract: A transparent illumination system and related light guide plate is provided. The system is configured to facilitate total internal reflection propagation of light through the light guide plate despite low index of refraction differences between the glass material of the light guide layer and the adjacent layer. The system includes a light source, such as a laser diode, and an optical element to fan out light from the light source in the plane of the light guide plate. The light guide plate includes internal light extraction features.Type: GrantFiled: June 30, 2021Date of Patent: May 9, 2023Assignee: Corning IncorporatedInventors: Venkatesh Botu, Roni Daniel Levi, Christian Alexander Rothenbach Stacey, Andrew Joseph Sullivan, James Andrew West
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Patent number: 11636300Abstract: A mark substrate includes a base substrate, a light-blocking layer disposed on the base substrate, where an opening or a groove is defined in the light-blocking layer, and an infrared-transmitting member. At least a portion of the infrared-transmitting member is disposed in the opening or the groove of the light-blocking layer to define a mark having a two-dimensional shape and optically distinguished from an adjacent area.Type: GrantFiled: April 21, 2021Date of Patent: April 25, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jintaek Park, Jong-Won Choo
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Patent number: 11629839Abstract: A hybrid vehicle lamp includes a functional surface and a functional marking integrated within the functional surface. A housing has a plurality of mounting locations configured to respectively align a plurality of light sources configured to illuminate the functional marking or the functional surface, or both, in a lit mode. A controller is configured to individually control each of the plurality of light sources for providing different illumination patterns of the functional marking and the functional surface such that such that automotive functional lighting and non-automotive functional lighting is provided.Type: GrantFiled: March 25, 2021Date of Patent: April 18, 2023Assignee: Flex-N-Gate Advanced Product Development, LLCInventors: Lester Ray Sullivan, Ronie George
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Patent number: 11604306Abstract: A privacy protection film, a manufacturing method thereof, a backlight module, and a display device are provided. The privacy protection film includes a substrate, a light incident surface of the substrate is provided with a reflective layer, light transmission holes are provided on the reflective layer; a light exiting surface of the substrate is provided with a micro-lens array; each of the light transmission holes corresponds to at least one micro-lens in the micro-lens array; and the micro-lens is configured to control an exiting direction of light exiting from the light exiting surface of the substrate to remain unchanged; or, the micro-lens is configured to control an exiting direction of the light exiting from the light exiting surface of the substrate to be deflected toward a direction of an axis of the micro-lens.Type: GrantFiled: March 21, 2019Date of Patent: March 14, 2023Assignees: BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Jialuo Chen
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Patent number: 11573449Abstract: According to one embodiment, a display device comprises a collimating layer including first to third openings, first to third color filters overlaid on the first to third openings, respectively, a first sensor outputting a first detection signal corresponding to light made incident through the first opening and the first color filter, a second sensor outputting a second detection signal corresponding to light made incident through the second opening and the second color filter, and a third sensor outputting a third detection signal corresponding to light made incident through the third opening and the third color filter.Type: GrantFiled: January 19, 2022Date of Patent: February 7, 2023Assignee: Japan Display Inc.Inventors: Tomoyuki Ito, Kazuki Matsunaga, Shigesumi Araki, Kazuhide Mochizuki
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Patent number: 11555951Abstract: A display device includes a cover structure, a light guide plate, and a display panel. The cover structure includes an anti-glare layer, a light blocking frame, and an adhesive layer. The anti-glare layer has a display region and an non-display region. The light blocking frame surrounds a receiving space. An orthogonal projection of the light blocking frame on the anti-glare layer is located within the non-display region. An adhesive layer is located in the receiving space of the light blocking frame. The light guide plate is located on the surface of the adhesive layer facing away from the anti-glare layer. The display panel is adjacent to the light guide plate.Type: GrantFiled: June 17, 2020Date of Patent: January 17, 2023Assignee: E Ink Holdings Inc.Inventors: Chih-Cheng Ko, Yun-Nan Hsieh
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Patent number: 11526046Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate having a first side surface and a second side surface, and a liquid crystal layer including a stripe-shaped polymer and liquid crystal molecules. The liquid crystal layer has a first region and a second region. When no voltage is applied to the liquid crystal layer, a first intersection angle of a first director of a first liquid crystal molecule and a first extension axis of the polymer included in the first region is different from a second intersection angle of a second director of a second liquid crystal molecule and a second extension axis of the polymer included in the second region.Type: GrantFiled: March 31, 2021Date of Patent: December 13, 2022Assignee: Japan Display Inc.Inventors: Kojiro Ikeda, Tenfu Nakamura, Kentaro Okuyama
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Patent number: 11513391Abstract: An optical structure includes a high refractive-index layer and a low refractive-index layer laminated on the high refractive-index layer and having a refractive index lower than that of the high refractive-index layer, and is disposed on a display surface of a display device. An interface between the layers has a concave-and-convex shape, and each of a concavity and a convexity in the shape has a flat portion extending in a surface direction of the layers. A side surface of the concave-and-convex shape, which extends between the flat portions of the concavity and convexity, is a curved surface or a folded surface that is convex to the low refractive-index layer. A difference between a maximum angle and a minimum angle, which are defined between the side surface of the concave-and-convex shape and a normal direction of the layers, is not less than 3 degrees and not more than 60 degrees.Type: GrantFiled: March 15, 2022Date of Patent: November 29, 2022Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yosuke Ueba, Tatsuaki Inoue
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Patent number: 11513401Abstract: A liquid crystal display module and a display device are provided. An end surface of a binding terminal is combined with an end surface of an array substrate to form a contact surface. The contact surface is disposed obliquely to any side surface of the array substrate. A conductive film is fit to and electrically connected with the contact surface. By increasing area of the contact surface between the binding terminal and the first conductive film, a contact resistance can be effectively reduced. The flip-chip film is bent at least twice to reduce a damage to the flip-chip film during bending.Type: GrantFiled: November 12, 2019Date of Patent: November 29, 2022Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Huihua Liao, Qingyong Zhu
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Patent number: 11513385Abstract: A color conversion element and a display device including the same are provided. The color conversion element includes: a base substrate in which a first region and a second region are defined; a color conversion layer on the base substrate, in the first region, and including color conversion particles configured to convert a wavelength of incident light; and a color light transmitting layer on the base substrate and in the second region; wherein each of the color conversion particles includes a compound represented by Formula 1 (AmBnXl - - - (1)), where, in Formula 1, A is Cs, Rb, or an alloy thereof; B is at least one of Cu, Sb, Ge, Sn, and Bi, or an alloy thereof; m, n, and l are each an integer of 1 to 9; and X is at least one of F, Cl, Br, and I, or a mixture thereof.Type: GrantFiled: May 15, 2019Date of Patent: November 29, 2022Assignee: Samsung Display Co., Ltd.Inventors: Kyoung Won Park, Min Ki Nam, Sung Woon Kim, Dong Han Song
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Patent number: 11506833Abstract: The present disclosure provides an electronic device including: a casing, a main body of which is provided with a light transmitting area; an indicating structure including a light emitting component and a light guide component which are fixedly coupled; the light guide component is configured to scatter the light emitted by the light emitting component and then emit the scattered light; the indicating structure is fixedly coupled to the casing, and a light exiting surface of the indicating structure corresponds to the light transmitting area.Type: GrantFiled: May 26, 2021Date of Patent: November 22, 2022Assignees: Hefei BOE Vision-Electronic Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Chao Wu
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Patent number: 11506830Abstract: A backlight module and a display device are provided. The backlight module includes a polarizing light guide plate configured to convert incident light into first polarized light and second polarized light, a polarization direction of the first polarized light being perpendicular to a polarization direction of the second polarized light.Type: GrantFiled: September 6, 2018Date of Patent: November 22, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Donglong Lin, Peng Wu, Zeyuan Tong, Wenyang Li, Fujian Ren, Dong Cui, Zhipeng Zhang, Bin Long, Dae Keun Yoon, Qing Ma, Rui Han, Pai Sun
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Patent number: 11506938Abstract: A lighting unit includes a glass laminate structure including a base layer formed from a first glass composition with a refractive index nbase and a surface layer fused to a surface of the base layer and formed from a second glass composition with a refractive index nsurface. The surface layer includes a high refractive index region with a refractive index nhigh and a low refractive index region with a refractive index nlow. nbase and nsurface satisfy the equation |nsurface?nbase?0.001, nhigh is greater than or equal to nbase 1, and nlow is less than nbase. The high refractive index region is optically coupled to the base layer such that at least a portion of light propagating through the base layer leaks out of the base layer and into the high refractive index region. A display device or a luminaire can include the lighting unit.Type: GrantFiled: July 11, 2017Date of Patent: November 22, 2022Assignee: CORNING INCORPORATEDInventors: Venkata Adiseshaiah Bhagavatula, Natesan Venkataraman
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Patent number: 11503733Abstract: A display device includes a display panel device and a frame configured to hold the display panel device. The display panel device includes a first magnetic adherent. The frame includes a second adherent. The display panel device is adhered to the frame via the first adherent and the second adherent, such that the display panel device is removable from the frame for rework without damaging the first adherent and the second adherent.Type: GrantFiled: June 30, 2021Date of Patent: November 15, 2022Assignee: Dell Products L.P.Inventors: Guantaek Oh, KyungEun Lee
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Patent number: 11488941Abstract: A light-emitting device is provided, including a light-emitting unit and an optical layer. The light-emitting unit includes a light-emitting chip and an encapsulation disposed thereon. The optical layer is disposed on the light-emitting unit, the optical layer having a first region overlapping the light-emitting chip in a top view direction of the light-emitting device and a second region not overlapping the light-emitting chip in the top view direction of the light-emitting device, wherein the transmittance of the first region is less than the transmittance of the second region.Type: GrantFiled: April 29, 2020Date of Patent: November 1, 2022Assignee: INNOLUX CORPORATIONInventors: Shun-Yuan Hu, Chin-Lung Ting, Ker-Yih Kao, Li-Wei Mao
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Patent number: 11480824Abstract: An exemplary display device includes: a display panel; a color conversion panel overlapping the display panel; and an optical bonding layer positioned between the display panel and the color conversion panel. The color conversion panel includes: a substrate; a color conversion layer and a transmission layer positioned between the substrate and the display panel; a first capping layer having one side facing the color conversion layer and the transmission layer, and another side facing the display panel; a second capping layer positioned between the first capping layer and the display panel; and an optical layer positioned between the first capping layer and the second capping layer and/or between the second capping layer and the optical bonding layer. A refractive index of the optical layer is lower than at least one of a refractive index of the first capping layer and a refractive index of the second capping layer.Type: GrantFiled: January 7, 2020Date of Patent: October 25, 2022Inventors: Seung-Jin Chu, Seung-Jin Baek, Young Min Kim, Hae Il Park, Kun Hee Jo
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Patent number: 11474389Abstract: A display panel according to an embodiment of the present invention is a display panel having a display region including a plurality of pixels arrayed along a first direction and along a second direction which is different from the first direction, the display panel including a first substrate and a second substrate opposing each other, the first substrate and the second substrate being curved along the first direction. The first substrate has a color filter layer that includes: a plurality of color filters provided respectively corresponding to the plurality of pixels; and a black matrix having a plurality of light shielding portions disposed between adjacent color filters adjoining along the first direction. The second substrate includes a plurality of pixel electrodes respectively included in the plurality of pixels.Type: GrantFiled: July 22, 2019Date of Patent: October 18, 2022Assignee: SAKAI DISPLAY PRODUCTS CORPORATIONInventors: Tomohiro Asamizu, Daisuke Teragawa
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Patent number: 11442512Abstract: A display device is disclosed. The display device includes a display panel, a frame positioned behind the display panel, a back cover coupled to the frame so as to cover a rear surface of the frame, and a fixing member, which extends longitudinally and which is disposed between the frame and the back cover and is fixed to the frame, the fixing member having a fixing hole formed in a direction intersecting the longitudinal direction of the fixing member, wherein the back cover has therein a coupling hole at a location facing the fixing hole, and is coupled to the fixing member by means of a fastening member, which is inserted into the fixing hole through the coupling hole.Type: GrantFiled: January 21, 2021Date of Patent: September 13, 2022Assignee: LG ELECTRONICS INC.Inventors: Seunggyu Kang, Hyuncheol Cho
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Patent number: 11435618Abstract: Disclosed is a display device. The display device achieves a slim bezel by forming a through hole at a bottom portion of a cover, and changing a connection structure of a sub-FPCB to be connected to a main FPCB such that the connection structure extends through the cover without extending along the outside of the cover. The display device achieves a reduction in the thickness of the display device and an enhancement in picture quality through change of an installation direction of an LED module constituted by a main FPCB and LED elements disposed at one surface of the main FPCB. The display device can reduce a space where a sensor unit is disposed in conventional cases by mounting the sensor unit on the LED module, and can realize an additional function such as skin care or sterilization in accordance with the kind of the sensor unit.Type: GrantFiled: August 20, 2019Date of Patent: September 6, 2022Assignee: LG Display Co., Ltd.Inventors: Ji-Soon Oh, Cheol-Woo Park, Yeoun-Jei Jung, Jung-Mok Lee, Keum-Young Oh
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Patent number: 11435614Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes: a polarizer; and a pattern layer on a surface of the polarizer and including a first resin layer and a second resin layer facing the first resin layer, the first resin layer including a patterned portion located at at least a portion thereof facing the second resin layer, the patterned portion includes at least two embossed optical patterns and a flat section formed between a pair of adjacent embossed optical patterns, each of the embossed optical patterns includes an upper surface defining a wave pattern, and the wave pattern has a value of about 20% to 60%, as calculated according to Formula 1 herein, and a pitch of greater than about 100 ?m and less than about 400 ?m.Type: GrantFiled: April 3, 2020Date of Patent: September 6, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Kyoung Min Cho, Young Oh, Dong Ho Wee, Jang Hyun Cho
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Patent number: 11417135Abstract: There is provided an information processing apparatus, an information processing method, and a program that can optimize information output in response to an environment in a space, the information processing apparatus including: a recognition unit that recognizes a situation in a space based on sensor data obtained by sensing the space in which a content is output; and a determination unit that determines an output scheme of the content based on a result of the recognition and an analysis result of related information of the content.Type: GrantFiled: July 11, 2018Date of Patent: August 16, 2022Assignee: SONY CORPORATIONInventors: Ryuichi Suzuki, Kentaro Ida, Takuya Ikeda, Fumihiko Iida
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Patent number: 11410616Abstract: A backlight driving method and device of a display panel, and a display panel are provided. The backlight driving method of a display panel includes generating a synchronous drive frame and performing black frame insertion control according to a synchronous drive frame, the synchronous drive frame includes a first time region and a second time region, in the synchronous drive frame, a PWM light-adjusting signal is not output in the first time region and the PWM light-adjusting signal is output in the second time region, the first time region corresponds to line scan time, and the second time region corresponds to liquid crystal stabilization time.Type: GrantFiled: November 21, 2017Date of Patent: August 9, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhaohui Meng, Hao Zhang, Dong Chen
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Patent number: 11397351Abstract: In a display device, a drive circuit drives LEDs arranged in n rows (n is an integer equal to or greater than two) so as to correspond to a plurality of areas of a backlight, row by row through division into n time slots or every k rows (k is an n's divisor equal to or greater than two and is smaller than n) through division into n/k time slots in accordance with the status of use of the display device.Type: GrantFiled: August 3, 2021Date of Patent: July 26, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Naoto Inoue, Naoko Goto, Tomoyuki Nara
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Patent number: 11394934Abstract: Methods, apparatuses, systems, and non-transitory computer-readable media are disclosed for generating pixel values. Such a method may involve filtering light using a plurality of anti-color filters arranged among an array of filters, each of the plurality of anti-color filters corresponding to a rejection band, to generate a plurality of portions of anti-color filtered light. The method may further involve receiving the plurality of portions of anti-color filtered light at a plurality of optical pixel sensors. The method may further involve generating, at the plurality of optical pixel sensors, a plurality of pixel signals based on the plurality of portions of anti-color filtered light. The method may further involve generating a binned anti-color pixel value by combining the plurality of pixel signals.Type: GrantFiled: September 24, 2020Date of Patent: July 19, 2022Assignee: QUALCOMM IncorporatedInventor: Edwin Chongwoo Park
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Patent number: 11346992Abstract: A light unit including: a light source; and an optical member that transmits and converts light emitted from the light source, wherein the optical member includes: a light guide; a low refractive index layer that is disposed on the light guide and has a lower refractive index than that of the light guide; a first capping layer that is disposed on the low refractive index layer; and a wavelength conversion layer that is disposed on the first capping layer and includes quantum dots, and the light guide includes a transparent metal oxide.Type: GrantFiled: December 15, 2019Date of Patent: May 31, 2022Assignee: Samsung Display Co., Ltd.Inventors: Chang Ok Kim, Chui Min Bae, Ji Hye Han, Tae Wook Kang, Yong Seok Kim, Shin Il Choi
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Patent number: 11335833Abstract: Light-emitting diodes (LEDs), LED arrays, and related devices are disclosed. An LED device includes a first LED chip and a second LED chip mounted on a submount with a light-altering material in between. The light-altering material may include at least one of a light-reflective material and/or a light-absorbing material. Individual wavelength conversion elements may be arranged on each of the first and second LED chips. The light-altering material may improve the contrast between the first and second LED chips as well as between the individual wavelength conversion elements. LED devices may include submounts in modular configurations where LED chips may be mounted on adjacent submounts to form an LED array. Each LED chip of the LED array may be laterally separated from at least one other LED chip by a same distance and a light-altering material may be arranged around the LED array.Type: GrantFiled: August 31, 2018Date of Patent: May 17, 2022Assignee: CREELED, INC.Inventors: Sung Chul Joo, Kenneth M. Davis, David Suich, Jae-Hyung Park, Arthur F. Pun
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Patent number: 11333925Abstract: An optical structure includes a high refractive-index layer and a low refractive-index layer laminated on the high refractive-index layer and having a refractive index lower than that of the high refractive-index layer, and is disposed on a display surface of a display device. An interface between the layers has a concave-and-convex shape, and each of a concavity and a convexity in the shape has a flat portion extending in a surface direction of the layers. A side surface of the concave-and-convex shape, which extends between the flat portions of the concavity and convexity, is a curved surface or a folded surface that is convex to the low refractive-index layer. A difference between a maximum angle and a minimum angle, which are defined between the side surface of the concave-and-convex shape and a normal direction of the layers, is not less than 3 degrees and not more than 60 degrees.Type: GrantFiled: March 8, 2021Date of Patent: May 17, 2022Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yosuke Ueba, Tatsuaki Inoue
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Patent number: 11315979Abstract: According to an aspect, a display device includes: a substrate; a plurality of pixels; a first anisotropic diffusion layer and a second anisotropic diffusion layer that are layered; and a plurality of light emitting elements interposed between the first anisotropic diffusion layer and the substrate. The first anisotropic diffusion layer and the second anisotropic diffusion layer each include a high refractive index region and a low refractive index region in a mixed manner. An absolute value of a first angle formed by a boundary between the high refractive index region and the low refractive index region of the first anisotropic diffusion layer and a direction perpendicular to the substrate is different from an absolute value of a second angle formed by a boundary between the high refractive index region and the low refractive index region of the second anisotropic diffusion layer and the direction perpendicular to the substrate.Type: GrantFiled: September 11, 2020Date of Patent: April 26, 2022Assignee: Japan Display Inc.Inventor: Osamu Itou
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Patent number: 11309461Abstract: An optoelectronic semiconductor device and a method for manufacturing an optoelectronic semiconductor device are disclosed. In an embodiment, an optoelectronic semiconductor device includes a semiconductor body having an active region configured to generate electromagnetic radiation and a coupling-out surface along a main radiation direction, and a wavelength conversion element having conversion regions, the conversion regions optically separated from one another by metallic separators, wherein the wavelength conversion element is arranged downstream of the semiconductor body in the main radiation direction of the active region, wherein the active region comprises a plurality of independently controllable emission regions, and wherein the emission regions are at least partially aligned with the conversion regions and explicitly assigned to the conversion regions.Type: GrantFiled: May 15, 2019Date of Patent: April 19, 2022Assignee: OSRAM OLED GMBHInventors: Britta Göötz, Norwin von Malm
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Patent number: 11289630Abstract: Light emitting devices having a first LED with a first phosphor, a second LED with a second phosphor and a third LED with a third phosphor to emit a composite white light are described. The first LED and first phosphor emit the red spectral component, the second LED and the second phosphor emit the blue spectral component and the third LED and third phosphor emit the green spectral component of the composite white light. The green spectral component has at least 30% radiant flux in a deep red spectral wavelength region.Type: GrantFiled: December 20, 2019Date of Patent: March 29, 2022Assignee: Lumileds LLCInventor: Wouter Soer
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Patent number: 11281042Abstract: An optical film may include a first pattern layer having a first refractive index and including a base portion and a plurality of protrusions on the base portion x, and a second pattern layer disposed on the first pattern layer and having a second refractive index different from the first refractive index. Each of the protrusions may include n sub-protrusions (n is an integer of 2 or greater), which are stacked in a thickness direction of the base portion. Each of the n sub-protrusions may have a quadrilateral shape. A side surface of the protrusion defined by the n sub-protrusions may include at least one step portion. The optical film improves display quality of a display device in front and lateral directions.Type: GrantFiled: June 8, 2020Date of Patent: March 22, 2022Inventors: Jongmin Ok, Young Gu Kim, Jiyun Park, Jongho Son, Sun-Young Chang, Hyelim Jang, Baekkyun Jeon, Kyungseon Tak
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Patent number: 11275265Abstract: Color conversion films for a LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. Film integration and display configurations further enhance the display performance with color conversion films utilizing various color conversion elements and possibly patterned and/or integrated with a crosstalk blocking matrix. For example, color conversion and/or assistant dyes may be used to enhance spectral regions transmitted through the color filters and shape the illumination spectrum, to improve efficiency and performance.Type: GrantFiled: August 31, 2017Date of Patent: March 15, 2022Assignee: MOLECULED LTD.Inventors: Daniel Szwarcman, Ziv Sobol
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Patent number: 11256130Abstract: A display device includes a first display panel including a light emitting element; a light condensing element at a side portion of the first display panel; a light guide plate below the first display panel; The light condensing element transmits external light to the light guide plate.Type: GrantFiled: April 16, 2020Date of Patent: February 22, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Uk Bang, Jang Sik Park, Joo Young Lee
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Patent number: 11251234Abstract: A display unit of a display device includes a light emitting unit and a light converting layer disposed on the light emitting unit. The display unit emits an output light under an operation of the highest gray level, and the output light has an output spectrum. An intensity integral of the output spectrum from 380 nm to 489 nm defines as a first intensity integral, an intensity integral of the output spectrum from 490 nm to 780 nm defines as a second intensity integral, a ratio of the first intensity integral over the second intensity integral defines as a first ratio, and the first ratio is greater than 0% and less than or equal to 7.5%.Type: GrantFiled: November 28, 2019Date of Patent: February 15, 2022Assignee: InnoLux CorporationInventors: Hsiao-Lang Lin, Jui-Jen Yueh, Kuan-Feng Lee, Jia-Yuan Chen
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Patent number: 11250771Abstract: A display device includes an array of driver circuits distributed in a display area for driving corresponding LED zones and an array of sensor circuits distributed in the display area for sensing conditions associated with the driver circuits or LED zones. Various communication protocols and connectivity configurations may be employed to communicate driver control signals to the driver circuits and to obtain readback data from the sensors. A control circuit adjusts operation of the display device based on sensor data obtained from the sensor.Type: GrantFiled: December 1, 2020Date of Patent: February 15, 2022Assignee: Huayuan Semiconductor (Shenzhen) Limited CompanyInventors: Chih-Chang Wei, Junjie Zheng, Richard Landry Gray, Ping-Yuan Lin, Jyun-Long Lin
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Patent number: 11243435Abstract: A display device according to the present disclosure includes: a color conversion panel; and a display panel overlapping the color conversion panel, wherein the color conversion panel includes a color conversion layer including a nano-crystalline semiconductor and a transmission layer, the display panel includes a first display panel including a first substrate and a thin film transistor disposed on the first substrate, a second display panel including a second substrate and overlapping the first display panel. The first substrate and the second substrate have different thicknesses.Type: GrantFiled: March 4, 2021Date of Patent: February 8, 2022Inventors: Duk-Sung Kim, Jung Hyun Kwon, Dong-Yoon Kim
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Patent number: 11237420Abstract: A liquid-crystal display that includes a liquid-crystal module and a touch panel covering the liquid-crystal module. The liquid-crystal display includes a holder extending along the outer end of the liquid-crystal module, the holder holding the touch panel in a state of covering the liquid-crystal module. The liquid-crystal display includes a double-faced tape disposed between a surface of the touch panel and a surface of the holder facing each other, the double-faced tape fixing the touch panel and the holder together. The double-faced tape includes multiple segments continuously disposed in a direction where the holder extends, the segments being mutually separable.Type: GrantFiled: May 11, 2020Date of Patent: February 1, 2022Assignee: SHARP KABUSHIKI KAISHAInventor: Kazuki Nakamichi
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Patent number: 11221527Abstract: A viewing angle of emission light is widened. A width of the viewing angle is adjusted. A liquid crystal diffraction grating includes at least a first substrate, a liquid crystal layer and a second substrate. The first substrate includes a lower electrode and an upper electrode opposite to the lower electrode, and the upper electrode includes a plurality of branch electrodes that extend in a Y direction and are arranged in an X direction in a plan view. When no voltage is applied to the plurality of branch electrodes, an alignment direction of liquid crystal molecules of the liquid crystal layer is a direction along the X or Y direction. When polarizers are arranged on upper and lower sides of the liquid crystal diffraction grating, transmission axes of these polarizers are parallel to each other and parallel to the alignment direction of the liquid crystal molecules.Type: GrantFiled: July 13, 2020Date of Patent: January 11, 2022Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11209693Abstract: Provided is a liquid crystal display comprising: a liquid crystal cell; an upper polarizing plate provided on one surface of the liquid crystal cell and including a first polarizer and a low moisture-permeable film disposed on one surface of the first polarizer so as to face the liquid crystal cell; and a lower polarizing plate provided on the other surface of the liquid crystal cell and including a second polarizer, wherein a ratio of a shrinkage force in a direction parallel to the absorption axis of the second polarizer of the low moisture-permeable film to a shrinkage force in an absorption-axial direction of the second polarizer is 30% or more.Type: GrantFiled: September 20, 2019Date of Patent: December 28, 2021Assignee: LG Chem, Ltd.Inventors: Jae Min Choi, Jin Yong Park, Sang Hyun Nah, Won Chul Lee, Jun Cheol Shin
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Patent number: 11194250Abstract: A metal oxide photosensitive resin composition for forming a blue pattern layer includes scattering particles including a metal oxide having an average particle diameter of 30 to 300 nm, provided that the metal oxide photosensitive resin composition does not include quantum dots.Type: GrantFiled: August 24, 2017Date of Patent: December 7, 2021Assignee: Dongwoo Fine-Chem Co., Ltd.Inventors: Hyun Jung Wang, Ju Ho Kim, Hyung Joo Kim, Sung Hun Hong
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Patent number: 11196016Abstract: A pixel structure includes a base substrate and a light emitting element on the base substrate. The light emitting element includes a reflective electrode, a light emitting layer on the reflective electrode, and a substantially transparent electrode on a side of the light emitting layer away from the reflective electrode. The reflective electrode has a reflective ridge configured to reflect light laterally transmitted through the light emitting layer to exit from a light emitting surface of the pixel structure. The reflective ridge has a first concave reflective sidewall extending from a peak of the reflective ridge to a base of the reflective ridge, and a second concave reflective sidewall extending from the peak of the reflective ridge to the base of the reflective ridge. The first concave reflective sidewall faces away from the second concave reflective sidewall.Type: GrantFiled: November 20, 2018Date of Patent: December 7, 2021Assignee: BOE Technology Group Co., Ltd.Inventors: Lujiang Huangfu, Xing Fan, Zheng Liu, Yan Fan, Liangjian Li, Hao Gao
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Patent number: 11194190Abstract: The present application provides a display panel and a display device. The display panel includes an array substrate and a color filter substrate arranged oppositely, and a light source on a side of the color filter substrate facing the array substrate. The color filter substrate includes a first region and a second region. An orthogonal projection of the array substrate on the color filter substrate is in the first region, and the light source is in the second region.Type: GrantFiled: September 4, 2020Date of Patent: December 7, 2021Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaolong Liu, Zhihui Wang, Changgong Zhu, Jianghong Wen, Keguo Liu, Xuefeng Wang, Yanli Zhao, Guang Wang, Di Wang, Yu Wang
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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: 11175557Abstract: A transmittable lighting device is provided. The transmittable lighting device includes two substrates, a transmittable layer, two polarizers and a light source. The two substrates are respectively electrically connected to a voltage supply. A switchable electric field is provided between the two substrates, and two alignment directions of the two substrates are orthogonal to each other. The transmittable layer is located between the two substrates and has a plurality of liquid crystal molecules. Each of the plurality of liquid crystal molecule is arranged along the alignment direction of the substrate nearby, and the plurality of liquid crystal molecules is arranged in a 90-degree twisted arrangement. The two polarizers are located at two outer surfaces of the two substrates, respectively. Each polarizer has a polarization direction parallel to the alignment direction of the substrate on the same outer surface. The light source emits a lateral light entering the transmittable layer laterally.Type: GrantFiled: July 29, 2020Date of Patent: November 16, 2021Assignee: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tsung-Hsien Lin, Cheng-Chang Li, Heng-Yi Tseng, Hung-Chang Jau, Li-Min Chang, Kuan-Wu Lin
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Patent number: 11170478Abstract: To allow a better determination of an image of a different luminance dynamic range (in particular as characterised by a different maximum luminance a.k.a.Type: GrantFiled: December 6, 2018Date of Patent: November 9, 2021Assignee: Koninklijke Philips N.V.Inventor: Johannes Yzebrand Tichelaar
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Patent number: 11163099Abstract: A light control film is disclosed that includes a plurality of spaced apart first regions. Each first region has a substantially low transmission in one or two of a first wavelength range from about 300 nm to about 400 nm, a second wavelength range from about 400 nm to about 700 nm, and a third wavelength range from about 700 nm to about 1200 nm, and a substantially high transmission in the remaining wavelength ranges. The light control film has a viewing angle of less than about 70 degrees along a predetermined first direction.Type: GrantFiled: December 1, 2016Date of Patent: November 2, 2021Assignee: 3M Innovative Properties CompanyInventors: John A. Wheatley, Gilles J. Benoit, Guanglei Du, Steven R. Anderson, Owen M. Anderson, David T. Yust, Rolf W. Biernath, Gary E. Gaides, Brian W. Lueck, Neeraj Sharma