Particular Illumination Patents (Class 349/61)
  • Patent number: 10672309
    Abstract: To enhance visibility of an image provided by a wearable optical device depending on different situations. Provided is an electronic apparatus including an illuminance information acquisition unit (510) configured to acquire illuminance information indicating illuminance of light incident on a wearable optical device toward a viewer from a real space, a situation information acquisition unit (540) configured to acquire situation information indicating a situation surrounding the wearable optical device, a luminance determination unit (520) configured to determine luminance of light emitted by the wearable optical device to allow the viewer to perceive an image superimposed on the real space, the determination of luminance being performed on a basis of the illuminance information and the situation information, and a controller (530) configured to control the wearable optical device to cause the wearable optical device to emit light having the determined luminance.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: June 2, 2020
    Assignee: Sony Corporation
    Inventors: Hirotaka Ishikawa, Takeshi Iwatsu, Tsubasa Tsukahara
  • Patent number: 10663799
    Abstract: The invention provides a backlight module. The backlight module has a cavity, a reflecting cover, a light source and an auxiliary light-guiding diffusion structure. The cavity comprises a reflective surface, a mounting surface connected to the reflective surface, and a light-emitting surface connecting the reflective surface and the mounting surface; the light source a light-emitting diode, the reflecting cover mounted on the mounting surface, the light source being disposed inside the reflecting cover; the auxiliary light-guiding diffusion structure disposed on the reflective surface and able to assist in diffusing the light incident to the reflective surface to improve emission uniformity of the backlight module and display quality.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 26, 2020
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaohong Jing
  • Patent number: 10663803
    Abstract: A liquid crystal display device includes first, second, third, and fourth pixel electrodes, each including a stem portion and a branch portion to define a plurality of domains, a common electrode opposing each of the first, second, third, and fourth pixel electrodes, and a liquid crystal layer between each of the common electrodes and a corresponding one of the first through fourth pixel electrodes, wherein an overall planar area of the stem portion and the branch portion of the fourth pixel electrode is smaller than an overall planar area of the stem portion and the branch portion of each of the first through third pixel electrodes.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyungguen Yoon, Jinsuek Kim, Younhak Jeong, Yunseok Lee
  • Patent number: 10663793
    Abstract: A video display device includes a liquid crystal display panel, and light source substrates configured to illuminate the liquid crystal display panel from a rear side of the liquid crystal display panel. Each of the light source substrates includes a plurality of light emitting diodes each of which is provided in corresponding one of areas different from each other in the liquid crystal display panel, and driver elements which drive each of the plurality of light emitting diodes such that light is emitted with luminance corresponding to brightness within a corresponding area of an image in accordance with a control signal. First conductive foil is disposed on a first main surface of the light source substrate on which the light emitting diodes are provided. Second conductive foil is disposed on a second main surface of the light source substrate on a side opposite to the first main surface.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 26, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuhiro Kumamoto, Takeichi Shinya, Koujirou Higa, Masaaki Ofuji, Taizou Takeuchi, Tadahiro Kugimaru, Ryou Shimotaya
  • Patent number: 10664081
    Abstract: An optical touch system includes a touch panel and a reading circuit. The touch panel comprises a first touch area including a plurality of image sensing units, where the plurality of image sensing units is arranged to form an array of a plurality of columns and a plurality of rows. The reading circuit is coupled to the plurality of image sensing units, where the plurality of image sensing units includes a first selected image sensing unit and a second selected image sensing unit. The reading circuit reads the first selected image sensing unit in the first touch area in a first touch sensing frame, and the reading circuit reads the second selected image sensing unit in the first touch area in a second touch sensing frame.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: May 26, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventor: Tsung-Hsien Hsieh
  • Patent number: 10641473
    Abstract: A lighting module having a heat sink and at least one light source supported by the heat sink. A printed circuit board is also supported on the heat sink and electrically coupled to the at least one light source with at least one conductor. The heat sink is folded or formed to define a conductor protector for protecting the at least one conductor and has at least one wall that is situated in operative relationship with the at least one conductor in order to shield or protect the at least one conductor.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: May 5, 2020
    Assignee: Valeo North America, Inc.
    Inventors: Frederick Allen Roth, Julien Hemon
  • Patent number: 10641948
    Abstract: A frame assembly and display device are provided. The frame assembly includes a mounting member, a sliding member, a top cover and a bottom cover. The sliding member is slidably disposed on the mounting member, in which the sliding member has at least one mounting hole and at least one engaging plate. The top cover has at least one protruding lug, in which the protruding lug is accommodated in the mounting hole, and at least one portion of the protruding lug is positioned by the engaging plate. The bottom cover has at least one engaging hook, in which the engaging hook is engaged in the mounting hole.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: May 5, 2020
    Assignees: RADIANT (GUANGZHOU) OPTO-ELECTRONICS CO., LTD., RADIANT OPTO-ELECTRONICS CORPORATION
    Inventors: Hui-Hua Hung, Chi-Chih Lu
  • Patent number: 10634952
    Abstract: A liquid crystal display device, includes a liquid crystal panel; and a backlight unit under the liquid crystal panel and having a light source. The light source includes a first luminous material having a first peak wavelength, a second luminous material having a second peak wavelength greater than the first peak wavelength, a third luminous material having a third peak wavelength greater than the second peak wavelength, and a light absorption material having an absorption maximum at a wavelength between the second peak wavelength and the third peak wavelength.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 28, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Ki-Duck Park
  • Patent number: 10622389
    Abstract: An image sensor is provided. The image sensor includes a visible light receiving portion and an infrared receiving portion. The visible light receiving portion is configured to receive a visible light. The visible light receiving portion includes a first white filter. The infrared receiving portion is configured to receive infrared. The infrared receiving portion includes an infrared photodiode, a second white filter, and an infrared pass filter. The second white filter is disposed on the infrared photodiode. The infrared pass filter is disposed on the infrared photodiode. The infrared is received by the infrared photodiode after passing through the second white filter and the infrared pass filter.
    Type: Grant
    Filed: September 10, 2016
    Date of Patent: April 14, 2020
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Yu-Jui Hsieh, Po-Nan Chen
  • Patent number: 10605974
    Abstract: A backlight assembly includes a light guide plate, containing a plurality of dots. Each dot includes a first reflecting surface and a second reflecting surface, respectively configured to reflect a first incident light such that reflected light emerges in a first preset direction in a narrow viewing angle mode, and to diffusely reflect a second incident light such that the reflected light emerges dispersedly in a wide viewing angle mode. A first light source can be disposed over a lateral side of the light guide plate and facing the first reflecting surface, to provide the first incident light on the first reflecting surface in the narrow viewing angle mode. A second light source can be disposed over another lateral side of the light guide plate and facing the second reflecting surface to provide the second incident light on the second reflecting surface in the wide viewing angle mode.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: March 31, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xuerong Wang, Haiwei Sun, Ruijun Dong, Junjie Ma, Caizheng Zhang, Lu Yu
  • Patent number: 10600939
    Abstract: A photoluminescent composition (“phosphor ink”) comprises a suspension of particles of at least one blue light (380 nm to 480 nm) excitable phosphor material in a light transmissive liquid binder in which the weight loading of at least one phosphor material to binder material is in a range 40% to 75%. The binder can be U.V. curable, thermally curable, solvent based or a combination thereof and comprise a polymer resin; a monomer resin, an acrylic, a silicone or a fluorinated polymer. The composition can further comprise particles of a light reflective material suspended in the liquid binder. Photoluminescence wavelength conversion components; solid-state light emitting devices; light emitting signage surfaces and light emitting signage utilizing the composition are disclosed.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: March 24, 2020
    Assignee: Intematix, Corporation
    Inventors: Xianglong Yuan, Bing Dai, Jonathan Melman, Charles Edwards
  • Patent number: 10598847
    Abstract: A light source module includes a light guide plate, a light source, a first prism sheet, a second prism sheet and a third prism sheet. The light guide plate includes a light emitting surface, a bottom surface and a light incident surface. The light source is disposed on the light incident surface and emits a beam into the light guide plate through the light incident surface. The first prism sheet is disposed on the light emitting surface and includes a plurality of first prism units located between the light emitting surface and the second prism sheet. The second prism sheet includes a plurality of second prism units extending in a first direction and located between the first prism sheet and the third prism sheet. The third prism sheet includes a plurality of third prism units extending in a second direction. The first direction is perpendicular to the second direction.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: March 24, 2020
    Assignee: Nano Precision Taiwan Limited
    Inventors: Ming-Ta Ke, Chao-Hung Weng, Hao-Jan Kuo
  • Patent number: 10593277
    Abstract: The present invention provides a viewing angle mode switching method of a liquid crystal display device and the liquid crystal display device. A viewing angle mode switching request is received. The target view mode is a first viewing angle mode or a second viewing angle mode. A timing relationship between the second scanning signal and the first scanning signal is adjusted, according to the viewing angle mode switching request. The liquid crystal display device is instructed to switch between the first viewing angle mode and the second viewing angle mode, according to a change of the timing relationship between the second scanning signal and the first scanning signal. With implementing the embodiments of the present invention, switch between different viewing modes can be achieved, and the display convenience of the liquid crystal display device can be improved.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 17, 2020
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianjian Ying, Peng Du
  • Patent number: 10578269
    Abstract: The present disclosure relates to a vehicle indicator lighting assembly or other lighting device for providing dual-color outputs in a lit state and an unlit state, respectively. Specifically, a color of a lighting device may be controlled such that an unlit state may communicate a desired color corresponding to a surface of a component of the lighting device. For instance, the lighting device can include a light guide having one or more decoupling regions and a bezel having one or more effecting facets arranged relative to the light guide. The light guide may be optically-coupled to a light source. The one or more effecting facets may be designed such that, when the lighting device is not illuminated by the light source, a color of a surface of the one or more effecting facets is displayed to an observer in a trailing vehicle by reflection of ambient light from an environment external to the vehicle.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: March 3, 2020
    Assignee: Valeo North America, Inc.
    Inventors: Robert King, Charles Crespin
  • Patent number: 10576081
    Abstract: Systems and electronic displays with improved contrast even under bright-light conditions are provided. Such an electronic display may include a self-emissive pixel (e.g., OLED or ?-LED) with a corresponding liquid crystal switchable retarder pixel. A liquid crystal layer of the switchable retarder pixel may be tuned to an “on” state or an “off” state. In the “on” state, the switchable retarder pixel may allow outside light that enters the pixel to reflect back out of the pixel. This may add to the amount of light that appears to be emitted from that pixel. In the “off” state, the switchable retarder pixel may block the outside light that enters the pixel from reflecting back out of the pixel. This may reduce the amount of light that appears to be emitted from that pixel. Selectively controlling the switchable retarder pixels may allow for increased contrast even under bright-light conditions.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: March 3, 2020
    Assignee: Apple Inc.
    Inventors: Shih Chang Chang, Cheng Chen, Chin-Wei Lin, Donghee Nam, Meng-Huan Ho, Minhyuk Choi, Rui Liu
  • Patent number: 10564488
    Abstract: Embodiment of the disclosure provide a display panel, a display device and a control method thereof, which belong to the field of display technology. The display panel comprises: a first base substrate and a second base substrate that are provided opposite to each other; and a plurality of pixel units formed between the first base substrate and the second base substrate. The pixel unit of the plurality of pixel units comprises: a liquid crystal adjustment unit; and a first light-shielding region and a first light-transmitting region at the first side of the liquid crystal adjustment unit. The liquid crystal adjustment unit comprises an adjustment electrode and a liquid crystal layer. The adjustment electrode is configured to control the deflection of the liquid crystals in the liquid crystal layer such that the light from the second side of the liquid crystal adjustment unit is transmitted to at least one of the first light-shielding region and the first light-transmitting region.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 18, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haiyan Wang, Xue Dong, Wenqing Zhao, Zhongxiao Li, Chenyu Chen, Xiaochen Niu, Qian Wang, Jinye Zhu
  • Patent number: 10561037
    Abstract: A backplane structure includes: a backplane; an electronic board having a plurality of first through-holes and a plurality of second through-holes spaced apart from the plurality of the first through-holes, the first through-holes each having a rectangular cross section; a plurality of strutting components, a plurality of connecting pieces, and a plurality of locking components, wherein the plurality of strutting components and the plurality of locking components are both disposed at positions corresponding to the second through-holes and the first through-holes on the backplane, respectively, the plurality of strutting components are fixedly connected to the electronic board via the plurality of connecting pieces, each of the locking components includes an inwardly concave locking slot disposed in a side surface of the locking component perpendicular to the backplane, and each of the locking components is locked with the electronic board via each of first through-holes.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: February 11, 2020
    Assignees: K-TRONICS (SUZHOU) TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaolai Li, Zhou Lu
  • Patent number: 10558072
    Abstract: A display apparatus includes a display panel, a backlight unit which provides a light to the display panel, and a light control member disposed between the display panel and the backlight unit. The light control member includes a plurality of first barrier wall members extending in a first direction and arranged in a second direction crossing the first direction.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youra Kim, Donghoon Kim, Young-min Park
  • Patent number: 10551676
    Abstract: A display apparatus includes an optical member disposed on a display panel. The optical member includes a linear polarizer and a ?/4 phase retarder overlapping with green and red pixel areas and not overlapping with a blue pixel area.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-ah Cho, Kyunghwan Jeon
  • Patent number: 10534127
    Abstract: A liquid crystal display device is disclosed. The liquid crystal display device includes a liquid crystal display panel, a light guide plate configured to guide blue light from a blue light source to the liquid crystal display panel and a light conversion sheet comprising a light conversion layer and a light compensation pattern positioned on edges of the light conversion layer configured to compensate blue light leakage at the edges of the light conversion sheet, wherein the light conversion sheet is positioned between the liquid crystal display panel and the light guide panel.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: January 14, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Young Sam Kim, Jong Chil Lee
  • Patent number: 10527878
    Abstract: A display panel includes a display device, an optical absorbing layer, an anti-reflection structure and a cover layer. The display device includes a plurality of pixels. The optical absorbing layer is over the display device and configured to absorb a light within a wavelength range. The anti-reflection structure is over the pixels of the display device, wherein the anti-reflection structure includes a photo-sensitive alignment layer, a liquid crystal circular polarizer and a linear polarizer. The photo-sensitive alignment layer is over the optical absorbing layer, wherein the photo-sensitive alignment layer is sensitive to and curable by the light within the wavelength range. The liquid crystal circular polarizer is over the photo-sensitive alignment layer, wherein the liquid crystal circular polarizer includes a plurality of liquid crystal molecules aligned by the photo-sensitive alignment layer. The linear polarizer is over the liquid crystal circular polarizer.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 7, 2020
    Assignee: INT TECH CO., LTD.
    Inventor: Yu-Chen Liu
  • Patent number: 10529783
    Abstract: 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: Grant
    Filed: June 15, 2017
    Date of Patent: January 7, 2020
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Jui-Jen Yueh, Kuan-Feng Lee, Jia-Yuan Chen
  • Patent number: 10527886
    Abstract: An LED backlight, a backlight module, and a display apparatus are provided. The LED backlight includes: a substrate; a plurality of LED chips disposed on a first surface of the substrate and electrically connected to the substrate, where each LED chip includes a first light emitting surface disposed on a side of the LED chip facing away from the substrate and at least one second light emitting surface, and a plane where the at least one second light emitting surface is located intersects with the substrate; a plurality of prism-shaped light guide structures disposed between adjacent LED chips and in a space defined between two adjacent second light emitting surfaces of adjacent LED chips, where the prism-shaped light guide structures have an index of refraction of n1; and a first medium filling the space between the LED chips and the prism-shaped light guide structures.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 7, 2020
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zongwei Lin, Sichao Ke
  • Patent number: 10516797
    Abstract: An imager is provided. The imager has an imaging platen which presents an imaging surface against which an object to be imaged can be placed. The imaging platen has a photodetector layer and a light guiding layer operable to guide light towards the object. The imager includes a light source operable to emit light into the light guiding layer. The light source is located at an edge of the light guiding layer, to guide light into the light guiding layer of the imaging platen.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 24, 2019
    Assignee: FlexEnable Limited
    Inventors: Tiziano Agostinelli, Charlotte Harrison, Will Reeves
  • Patent number: 10509158
    Abstract: A holographic Bragg grating is used as an output element for a waveguide in a lens used for artificial reality. By using a Bragg grating, a number of waveguides can be reduced. The output element has a first super grating and a second super grating written in a single grating layer of the waveguide. The first super grating has a grating vector that is skew to a grating vector of the second super grating to provide both deflection and out coupling for two-dimensional output coupling.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: December 17, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Hee Yoon Lee, Wanli Chi, Pasi Saarikko
  • Patent number: 10506206
    Abstract: Apparatus for controlling a spatial light modulator (106) of an image projector (100), the image projector further comprising an illumination source (102) arranged to illuminate the spatial light modulator (106), the apparatus comprising an input (126) for receiving image data, an output for outputting image data and a controller (110) in communication with the input and the output, the controller (110) being configured to: determine an estimated thermal state of the projector; use at least the estimated thermal state of the projector to obtain an expected illumination pattern of light incident on the spatial light modulator (106) when illuminated by the illumination source (102); use the expected illumination pattern to adjust the received image data so as to compensate for thermal changes in one or more components of the image projector; and output the adjusted image data to the spatial light modulator (106).
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: December 10, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Christopher John Orlick, Jerome D. Shields
  • Patent number: 10480752
    Abstract: An illumination panel including an optically transmissive, hollow multiwall structure and an array of LED strips distributed within a series of hollow chambers formed by the multiwall structure. The hollow multiwall structure is formed by two or more sheets of optically clear or translucent material joined by a plurality of transverse ribs. Each LED strip includes an array of interconnected light emitting diodes and is preferably provided with one or more light diffusing or beam-shaping elements included into one or more hollow chambers.
    Type: Grant
    Filed: February 26, 2017
    Date of Patent: November 19, 2019
    Assignee: SVV TECHNOLOGY INNOVATIONS, INC.
    Inventor: Sergiy Vasylyev
  • Patent number: 10467936
    Abstract: A system for detecting errors in a source driver for an electronic display includes an upstream logic device, a comparator, and a source driver. The source driver has a number of driven channels which transmit active signals for generating an image on the electronic display and one or more dummy channels which transmit dummy signals to the comparator. The comparator receives and compares signals from at least some of the driven channels with the dummy channels and generates an alert for transmission to the upstream logic device if a mismatch is detected.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: November 5, 2019
    Assignee: American Panel Corporation
    Inventors: Charles Lemons, Gary Baek, Steve Preston, David Williams
  • Patent number: 10459286
    Abstract: A display device including quantum rods is provided. The display device includes a light source generating light, a lightguide plate changing a path of the light generated from the light source and outputting the light to a front surface, a first polarizing plate arranged on top of the lightguide plate and generating first polarized light, a liquid crystal panel arranged on top of the first polarizing plate and displaying an image by using the first polarized light, a second polarizing plate arranged on top of the liquid crystal panel and generating second polarized light, and a quantum rod layer arranged on top of the second polarizing plate, divided into a plurality of pixels, and containing quantum rods in at least one of the pixels. A polarizing axis of the second polarized light is perpendicular to a polarizing axis of polarized light emitted by the quantum rod layer.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Woo Kang, Ki Hyung Kang, Joo-won Lee
  • Patent number: 10444513
    Abstract: A dichroic prism synthesizes display light emitted from a plurality of display panels, and a plate-shaped light guiding section guides the synthesized light to a light-emitting section. In the display light emitted from the respective pixels of the display panel, although a radiation angle of an effective luminous flux which reaches the eye of an observer is large in a direction corresponding to the vertical direction, a range of incident angle of intersecting effective luminous fluxes to the dichroic mirror is small.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 15, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Osamu Yokoyama, Takeshi Koshihara, Kunihiko Yano, Akira Komatsu
  • Patent number: 10436404
    Abstract: An embodiment of the present invention relates to a lighting device structure that can increase the degree of freedom of a light emitting surface and realize an effect of changing the shape and the three-dimensional feeling of light and there is provided a lighting device including a light guide layer in which light exit surfaces are formed on one surface and on the other surface opposite to the one surface; a light emitting module that is embedded in the light guide layer and disposed at an outer periphery of a light exit surface of the light guide layer; and a light-transmitting printed circuit board that mounts an light emitting device on the light emitting module and is disposed under the light guide layer.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: October 8, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Byoung Eon Lee, Gyeong Il Jin, Kwang Ho Park
  • Patent number: 10431163
    Abstract: There are provided a backlight scanning method and a device thereof. The method comprises: dividing an edge lighting type backlight source into an upper side optical region and a lower side optical region; turning on the light sources at the upper and lower sides respectively after the response of the liquid crystal corresponding to the pixels in the last row of the upper and lower side optical regions is stationary; turning off the light sources at the upper and lower sides respectively when the next response period of the liquid crystal corresponding to the pixels in the first row of the upper and lower side optical regions starts. The method solves the difficulties of applying the scanning backlight to the edge lighting type backlight source by respectively controlling the timings of turning on and off the light sources at the upper and lower sides, whereby the application scope of the scanning backlight is broadened.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: October 1, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lilei Zhang
  • Patent number: 10431158
    Abstract: The present disclosure relates to a display panel, a manufacturing method and a drive method thereof, and a display apparatus, in the field of display devices. The display panel comprises: an Organic Light-Emitting Diode panel and a reflecting Liquid Crystal Display panel arranged in a laminated mode, and a drive circuit, wherein the drive circuit is connected to the OLED panel and the reflecting LCD panel respectively; the drive circuit is used to drive the OLED panel or the reflecting LCD panel to display content in accordance with a control signal. The present disclosure solves the issue of display approach being relatively uniform by putting the OLED panel and the reflecting LCD panel together and controlling the OLED panel or the reflecting LCD panel to display content through the drive circuit.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 1, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Yafeng Yang, Xiaochuan Chen
  • Patent number: 10424623
    Abstract: Disclosed are a display panel and a display device. The display panel includes a quantum dot converter configured to convert light of a predetermined color emitted from a light source into light of a different color using a quantum dot unit and emit the converted light; and a light transmitter configured to transmit a part of the light of the predetermined color emitted from the light source and convert a remaining part of the light of the predetermined color into light of a different color and emit the converted light.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: September 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kye Hoon Lee
  • Patent number: 10422945
    Abstract: There are provided a backlight module, a display apparatus and an electronic drawing board. The backlight module includes a light guide plate, a printed circuit board located on a side of the light guide plate facing away from a light exit side thereof and having a wiring protrusion protruding from a surface of the printed circuit board. A shim is disposed between the light guide plate and the printed circuit board and configured to partially compensate a step difference formed due to the wiring protrusion.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 24, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Xiaoming Meng, Hui Wang, Zhiyuan Zheng
  • Patent number: 10416374
    Abstract: The purpose of invention is to suppress rattling in a backlight for the automotive display. The invention is: the backlight has a light guide, a container, and a light source; the light guide has a first side surface, where the light source opposes, a second side surface opposing to the first side surface, a third side surface and a fourth side surface extending in a second direction, the container has a third inner wall opposing to the third side surface and a fourth side surface opposing to the fourth side surface, a projection is formed at the third side surface or the fourth surface, the projection is inserted in a recess formed in the third inner wall or in the fourth inner wall, the recess has an eave, under which the projection is inserted; thus, movement of the light guide in up and down is suppressed.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: September 17, 2019
    Assignee: Japan Display Inc.
    Inventor: Hiroyuki Miyazaki
  • Patent number: 10409108
    Abstract: A backlight module is disclosed, which includes a light source; a light guide plate disposed on the light source. The light guide plate has a bottom surface receiving light from the light source and a front surface emitting light, and the front surface is perpendicular to the bottom surface. The light guide plate has a first notch placed on a top corner; and a plastic frame circumventing the light source and the light guide plate. The plastic frame comprises a portion starting from a frame light incident section near the light source and ending at a first frame light emitting section near the first notch, and the portion is light transparent to pass light from the light source, and has a reflective coating.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 10, 2019
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Wei Lin
  • Patent number: 10401670
    Abstract: A touch panel includes a first polarizing element, a first substrate, a liquid crystal layer, a second polarizing element, a touch electrode layer, a color converting layer and a second substrate. The first polarizing element has a first polarizing axis. The first substrate is disposed on the first polarizing element. The liquid crystal layer is disposed on the first substrate. The second polarizing element is disposed on the liquid crystal layer, includes a plurality of polarizing touch electrodes, and has a second polarizing axis crossing the first polarizing axis. The touch electrode layer is disposed on the liquid crystal layer, disposed adjacent to the second polarizing element and includes a plurality of touch electrodes. The color converting layer is disposed on the second polarizing element. The second substrate is disposed on the color converting layer.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Woong Jeong, Jaewoong Kang, Hyang-A Park, Jung-Hyun Yang
  • Patent number: 10401693
    Abstract: A liquid crystal module which is disposed opposite a backlight includes: a first liquid crystal panel which includes a pair of first transparent substrates; a second liquid crystal panel which is disposed between the backlight and the first liquid crystal panel and includes a pair of second transparent substrates; and a diffuser sheet disposed therebetween. A first transparent substrate that is closer to the diffuser sheet among the pair of first transparent substrates is thinner than a second transparent substrate that is closer to the diffuser sheet among the pair of second transparent substrates.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: September 3, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Katsuhiro Kikuchi, Kazuhiko Tsuda, Takao Imaoku, Yoichi Yasui
  • Patent number: 10401674
    Abstract: An optical device for a display panel. The optical device comprises an optical element (1). The optical element (1) may include a first surface (3) and a second surface (4) opposite the first surface, and side surfaces. The optical device may further comprise a light source (2) facing one of the side surfaces of the optical element (1). The optical element (1) may comprise a compound containing a photoisomer group. The photoisomer group may undergo a photoisomerization under an irradiation of the light source. Accordingly, an illumination area by a light passing through the first surface (3) and exiting from the second surface (4) may increase or decrease.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: September 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunyan Ji, Wenbo Li
  • Patent number: 10393945
    Abstract: Provided are a directional backlight unit and an image display apparatus including the same. The directional backlight unit includes at least one light source, a light guide plate arranged at a side of the at least one light source and configured to guide light emitted from the at least one light source by total reflection, a plurality of diffraction gratings arranged in a pattern at a surface of the light guide plate and configured to diffract the light and to emit the light diffracted by the plurality of diffraction gratings at a predetermined angle from a front surface; and a mirror arranged at a rear surface of the light guide plate and configured to reflect the light diffracted by the plurality of diffraction gratings toward the light guide plate, the rear surface of the light guide plate being opposite to the front surface of the light guide plate.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dongouk Kim, Joonyong Park, Jaeseung Chung, Alexander V. Morozov, Bongsu Shin, Jihyun Bae, Seokho Song, Dongsik Shim, Sunghoon Lee
  • Patent number: 10386045
    Abstract: The invention proposes a luminous module comprising a flexible printed circuit board. The connection to ground of the electronic circuit accommodated by the printed circuit board is produced without adding fastening parts dedicated to this role. Compared to known prior-art techniques, the invention allows a luminous module to be produced comprising fewer constituent parts and occupying a smaller volume.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: August 20, 2019
    Assignee: VALEO VISION
    Inventor: Olivier Badia
  • Patent number: 10365444
    Abstract: The optical receptacle according to the present invention comprises: a first optical surface, a second optical surface, an optical separating part and a third optical surface. The optical separating part includes a first dividing reflection surface for causing a part of the emittance light incident on the first optical surface to be internally reflected toward the second optical surface as the signal light, and a second dividing reflection surface for causing a part of the emittance light incident on the first optical surface to be internally reflected toward the third optical surface as the monitor light. The entire light path between the first optical surface, the optical separating part, and the second optical surface is located inside the optical receptacle.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 30, 2019
    Assignee: Enplas Corporation
    Inventors: Shimpei Morioka, Naofumi Mirumachi
  • Patent number: 10347870
    Abstract: A light-emitting device includes: a light-emitting layer; a first layer located on a light-emitting side of the light-emitting layer; and a second layer located on a light-emitting side of the first layer, and in contact with the first layer. A concavo-convex structure composed of a plurality of convex portions having two or more steps is formed at a boundary between the first layer and the second layer, a refractive index of the first layer is higher than a refractive index of the second layer, and a concavo-convex pattern of the concavo-convex structure is a pattern formed by a space-filling curve or a fractal tiling pattern.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 9, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Jumpei Matsuzaki
  • Patent number: 10330972
    Abstract: Transmissive liquid crystal panel and 3D printer including the same, the panel includes: a first substrate including a plurality of data lines and scan lines, data lines intersecting with scan lines to define a plurality of pixels; a second substrate; a liquid crystal layer located between the first and second substrate; a black matrix defining a plurality of aperture areas corresponding to the pixels; a monochromatic quantum dot layer covering the aperture areas, the monochromatic quantum dot layer being excitable under near ultraviolet light to generate light having a wavelength in a range of 385 nm-420 nm. The panel does not use chromatic filter layer, which improves transmittance of the panel with respect to near ultraviolet light, when the panel is applied in 3D printer, photographic efficiency of photosensitive resin and printing speed are improved, and utilization of near-ultraviolet light emitted by the backlight source is improved.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 25, 2019
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Chen Wang, Jie Chen
  • Patent number: 10330974
    Abstract: An exemplary embodiment of the present disclosure provides a color conversion panel including: a substrate; a polarization layer that is disposed on the substrate and includes a plurality of polarization patterns spaced apart from each other at a predetermined interval; and a color conversion layer that is disposed on the polarization layer, wherein at least one of the plurality of polarization patterns may include an external light interference layer disposed on the substrate and a reflection layer disposed on the external light interference layer.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Keun Lee, Jung Hyun Kwon, Young Min Kim, Hae Ii Park, Moon Jung Baek
  • Patent number: 10324329
    Abstract: A display device includes a display panel; a light guide plate configured to provide light to a rear side of the display panel; a cover bottom including a rear portion configured to cover a rear surface of the light guide plate, and a side portion bent toward the display panel from an end portion of the rear portion; and a support coupled to the cover bottom and configured to position the light guide plate and to accommodate longitudinal expansion of the light guide plate, the support being provided at a position adjacent to a longitudinal end portion of the light guide plate.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: June 18, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SangMo Yang, JongTak Aeo
  • Patent number: 10324115
    Abstract: Provided is a method for measuring a current that a component of a matrix device can supply. A device including components (pixels) arranged in a matrix, first wirings, and second wirings and third wirings which cross the first wirings is used. Each component includes a potential supply circuit, a transistor, and a capacitor.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 18, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yasuhiko Takemura
  • Patent number: 10317724
    Abstract: A liquid crystal display panel and a method for forming the same and a display device are provided. The liquid crystal display panel includes two substrates opposite to each other and two polarizing plates at two sides of the two substrates away from each other. There exists a large cell gap region between the two substrates which has a cell gap larger than regions between the two substrates other than the large cell gap region, each polarizing plate includes a first polarizing layer, and at least one of the polarizing plates further includes a second polarizing layer. The second polarizing layer includes a pattern region corresponding to a position and a shape of the large cell gap region. There is an acute angle between a light absorption axis of the second polarizing layer at the pattern region and a light absorption axis of the first polarizing layer.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: June 11, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Mengjie Wang, Xiaona Liu, Yuqiong Chen, Shuai Yuan, Ning Li, Yufei Wang
  • Patent number: 10312228
    Abstract: A display device includes a light-emitting unit and a light conversion layer. The light conversion layer is disposed on the light-emitting unit, and the light conversion layer includes plural quantum dot portions and a first shielding portion surrounding the plural quantum dot portions. One of the plural quantum dot portions has a surface and at least a part of the surface is a curved surface.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: June 4, 2019
    Assignee: InnoLux Corporation
    Inventors: Jia-Yuan Chen, Hsiao-Lang Lin, Jui-Jen Yueh, Kuan-Feng Lee