Electroluminescent Light Source Patents (Class 349/69)
  • Patent number: 10976593
    Abstract: A filter structure, a display substrate, a display panel and a display device are provided. The filter structure includes a first refractive index match layer, a waveguide layer, a second refractive index match layer and a grating layer, that are stacked, the waveguide layer is located between the first refractive index match layer and the second refractive index match layer, the second refractive index match layer is located between the waveguide layer (112) and the grating layer, and refractive index of the first refractive index match layer and refractive index of the second refractive index match layer both are smaller than refractive index of the waveguide layer.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: April 13, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Xianqin Meng, Yafeng Yang, Xiandong Meng, Wei Wang, Jian Gao
  • Patent number: 10959306
    Abstract: Embodiments include systems, methods, and apparatuses for providing a dimming function in a single stage AC input light emitting diode (LED) driver with a controller that contains an on-chip error amplifier and an on-chip fixed reference voltage source coupled to a first input of the error amplifier. The controller controls a duty cycle of a switching transistor to cause a feedback voltage, applied to a first package input terminal, to match the reference voltage. To achieve a dimming function, a voltage across a current sense resistor in series with the LEDs is applied to a first input of a high gain differential amplifier, and a variable dimming control voltage is applied to a second input of the differential amplifier. The output of the differential amplifier is coupled to the first package input terminal. The differential amplifier input signals will be matched at the target LED current level.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: March 23, 2021
    Assignee: Lumileds LLC
    Inventors: Zhihua Song, Wouter Soer, Ron Bonne, Yifeng Qiu
  • Patent number: 10935824
    Abstract: A liquid crystal display device includes: a liquid crystal panel; light sources provided on a rear surface of the liquid crystal panel; a temperature sensor configured to detect an in-device temperature and provided on a rear surface side of the liquid crystal panel; and a control circuit configured to control lighting of the light sources by adjusting a duty ratio of a driving signal by pulse width modulation on the basis of the in-device temperature detected by the temperature sensor. When the in-device temperature is within a predetermined temperature range, the control circuit updates a current duty ratio of the driving signal in such a manner that the difference between the current duty ratio for each unit time and a target duty ratio preset for the in-device temperature is reduced in a stepwise manner.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 2, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kazuhiko Yoda
  • Patent number: 10930233
    Abstract: Provided are a display panel, a display device and a compensation method for the display device. The display panel includes an organic light-emitting diode display panel and a liquid crystal display panel, where the organic light-emitting diode display panel in a first display region is configured as a backlight for the liquid crystal display panel. The organic light-emitting diode display panel includes a first array substrate and an organic light-emitting function film. The first array substrate includes a first pixel driving circuit, where the first pixel driving circuit includes a first A-type pixel driving circuit and a first B-type pixel driving circuit, and a density of the first A-type pixel driving circuit is less than a density of the first B-type pixel driving circuit.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 23, 2021
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Gaojun Huang, Zhongjie Zhang, Sha Lin
  • Patent number: 10899105
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: January 26, 2021
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 10903267
    Abstract: By using chip-by-chip, mainly separation technology, micro LED can be made very accurately and efficiently. First, after epitaxial process, the LED epi-wafer is processed into micro LEDs. Second, bonding substrates with driving circuits are provided for the LED epi-wafer. Then, each LED chip is fastened to the substrate chip-by-chip simultaneously or sequentially, and each LED chip may be transferred by using separation technology simultaneously or sequentially. The LED epi-wafer per se can be also provided as LED display substrate.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 26, 2021
    Inventors: Bor-Jen Wu, Chia-Bin Tsen
  • Patent number: 10845671
    Abstract: This disclosure teaches a thin film beam steering system comprising either flat or tilted transparent electrodes on one side of the electro-optical crystal layer and a transparent ground electrode on the other side. There is an insulator between each adjacent electrode which can be inserted all the way or partially through the EO crystal layer. A mirror layer can also be attached to the ground electrode. The refractive index of the EO crystal layer is changeable as a function of varying an applied voltage generated by the voltage supply and applied to the EO crystal layer. The disclosure also includes bulk crystal beam steering systems to steer a beam in 2 dimensions and to a wider angle.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 24, 2020
    Assignee: Exciting Technology, LLC
    Inventors: Paul F. McManamon, Abtin Ataei
  • Patent number: 10797034
    Abstract: An electronic package unit, a manufacturing method thereof and an electronic device are disclosed. The manufacturing method includes: providing an insulation substrate, wherein the insulation substrate has a first surface and a second surface opposite to the first surface; forming a plurality of sub-matrix circuits on the insulation substrate, wherein each sub-matrix circuit comprises at least one thin film transistor; disposing at least one functional chip on the first surface, wherein the functional chip is electrically connected with the sub-matrix circuit; forming a plurality of through-holes on the insulation substrate and disposing a conductive material in the through-holes, so that the functional chip is electrically connected to the second surface through the sub-matrix circuits and the conductive material; forming a protection layer on the first surface to cover the functional chips; and cutting the insulation substrate and the protection layer to form a plurality of electronic package units.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: October 6, 2020
    Assignee: GIO OPTOELECTRONICS CORP
    Inventor: Chin-Tang Li
  • Patent number: 10791598
    Abstract: The present utility model provides an electronic color temperature adjustment circuit, which comprises a color temperature control module, a color temperature adjustment module and at least two lines of light-emitting diodes (LEDs) with different color temperatures, wherein said color temperature adjustment module is respectively connected with said color temperature control module and said LEDs, said color temperature control module is used to receive adjustment and control information of the user and output pulse width modulation (PWM) signals with different duty ratios to said color temperature adjustment module according to said adjustment and control information, and said color temperature adjustment module is used to change the color temperatures of the LEDs according to the PWM signals sent by said color temperature control module.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: September 29, 2020
    Assignee: NINGBO JINGHUI OPTO-ELECTRONIC CO., LTD.
    Inventor: Guohui Bai
  • Patent number: 10745569
    Abstract: An anti-corrosion coating and a method for fabricating the anti-corrosion coating is disclosed. The coating includes a polymer, a curing agent, and quantum dots. The method includes adding carbon quantum dots to a polymer coating as a nanofiller to enhance the corrosion resistance properties of the polymer coating. The coating is configured to provide improved anti-corrosion properties at a lower cost.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 18, 2020
    Inventors: Sepideh Pourhashem, Ali Morad Rashidi, Mohammad Reza Vaezi Jezeh
  • Patent number: 10739634
    Abstract: A backlight unit for a liquid crystal display device, the backlight unit including: an light emitting diode (“LED”) light source; a light conversion layer disposed separate from the LED light source to convert light emitted from the LED light source to white light and to provide the white light to the liquid crystal panel; and a light guide panel disposed between the LED light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, and wherein the polymer matrix includes a first polymerized polymer of a first monomer including at least two thiol (—SH) groups, each located at a terminal end of the first monomer, and a second monomer including at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Eun Joo Jang, Hyo Sook Jang, Shin Ae Jun
  • Patent number: 10714000
    Abstract: A display device, a method for controlling the display device, and a wearable device are provided. The display device includes an organic light-emitting structural layer; at least one control assembly including a color filter layer and a control electrode layer; and a control circuit. The color filter layer is closer to the organic light-emitting structural layer than the control electrode layer, the color filter layer includes color filter regions and light-transmissible regions arranged alternately, the control electrode layer includes first electrodes, each first electrode is on one color filter region corresponding to the first electrode and light transmittance of the first electrode is changeable under voltages. The control circuit is connected to the first electrodes and applies the voltages to the first electrodes so as to control the light transmittance of the first electrodes.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 14, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liyan Xu, Junwei Wang, Xiaopeng Cui
  • Patent number: 10707435
    Abstract: Light-emitting elements such as LEDs are associated with light-converting material such as phosphor and/or other material. A donor substrate comprising the light-converting and/or other material is suitably placed relative to a target substrate associated with the light-emitting elements. A laser or other energy source is then used to transfer the light-converting and/or other material in a pattern via writing or masking from the donor substrate to the target substrate in accordance with the pattern. Addressability and targetability of the transfer process facilitates precise patterning of the target substrate.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: July 7, 2020
    Assignee: Quarkstar LLC
    Inventors: Ingo Speier, Robert C. Gardner, Louis Lerman, Christopher H. Lowery, Allan Brent York
  • Patent number: 10558054
    Abstract: The present disclosure relates to a display apparatus and a three-dimensional display method thereof. A via hole at least passing through a base substrate is formed in an array substrate of a liquid crystal display panel, and a signal line on an upper surface of the array substrate can be connected with a driving chip bonded onto an electroluminescent display substrate, through the via hole on a lower surface of the array substrate and through a conductive material in an optical clear adhesive. A signal line on the electroluminescent display substrate also can be connected with a driving chip bonded onto an upper surface of the array substrate, through the conductive material in the optical clear adhesive on a lower surface of the array substrate and through the via hole.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: February 11, 2020
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Rui Xu, Xiaochuan Chen, Wenqing Zhao, Ming Yang, Pengcheng Lu, Jian Gao, Xiaochen Niu
  • Patent number: 10535821
    Abstract: Embodiments described herein provide a precursor for synthesizing a number of molecules for use in organic photovoltaics. The precursor is diiodo-furopyran (DFP), such as dibromo-DFP (DBDFP), to be used to synthesize a number of different molecules for use in organic photovoltaics. DFP possesses numerous reactive sites that can be used to simultaneously modify the backbone structure (which can be used to tune electronic and crystalline properties) and the side-chains (affecting the solubility and the solubility of any subsequent copolymers). Each of the molecules has either a biisocoumarin or biisoquinoline core structure and can be easily varied to yield a different functional backbone or different substituents. The molecules can be used in copolymers or small molecules for use in OPVs.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 14, 2020
    Assignee: International Business Machines Corporation
    Inventors: Scott B. King, Brandon M. Kobilka, Joseph Kuczynski, Jason T. Wertz
  • Patent number: 10520769
    Abstract: A multi-color emissive display is presented with printed light modifier structures. A fabrication method provides an emissive substrate with a plurality of wells formed in the emissions substrate top surface, and a plurality of emissive elements populating the wells. The method prints light modifier structures overlying the emissive elements. Some examples of light modifier material include light scattering materials, phosphors, and quantum dots. In one aspect, the emissive substrate wells have a first shape, with sidewalls and a first perimeter. Likewise, the emissive elements have the first shape, with sides and a second perimeter, less than the first perimeter. The light modifier structures fill the space between the emissive element sides and the well sidewalls with light modifier material. If the first shape is circular, the method prints the light modifier structures overlying the emissive elements in the circular shape having a first diameter defined by the well sidewalls.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: December 31, 2019
    Assignee: eLux, Inc.
    Inventors: Kurt Ulmer, Jong-Jan Lee, Kenji Sasaki, Paul J. Schuele
  • Patent number: 10513631
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising same, the composition for a window film comprising: a first silicone resin comprising chemical formula 1; a second silicone resin containing a crosslinkable functional group and one or more among a Q unit and a bridge unit; a crosslinking agent; and an initiator. (R1SiO3/2)x([R2R3SiO2/2]n)y(R4R5SiO2/2)z(R6R7R8SiO1/2)w (where R1 is a crosslinkable functional group; R2 and R3 are each independently a methyl group; R4 and R5 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, or an unsubstituted or substituted C5-C20 cycloalkyl group; R6, R7, and R8 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C5-C20 cycloalkyl group, or an unsubstituted or substituted C6-C30 aryl group; n is an integer from 7 to 100; 0<x<1, 0.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 24, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Dong Il Han, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang
  • Patent number: 10510991
    Abstract: Embodiments of the present disclosure relate to a mask structure for pixel layout of an OLED panel, an OLED panel and a method for manufacturing the same. The mask structure for pixel layout of an OLED panel comprises: a deposition mask patterned on a substrate and surrounding each pixel region, the deposition mask comprising a first deposition wall and a second deposition wall arranged oppositely in pairs in a first direction, a third deposition wall and a fourth deposition wall arranged oppositely in pairs in a second direction intersecting the first direction, as well as a fifth deposition wall and a sixth deposition wall arranged oppositely in pairs in the first direction. The pixel layout comprises a first sub-pixel region adjacent to the second deposition wall, a second sub-pixel region adjacent to the first deposition wall, and a third sub-pixel region adjacent to the fourth deposition wall.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: December 17, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Boris Kristal
  • Patent number: 10475855
    Abstract: A display device (100) includes a spontaneous light emission-type display panel (10). The display device includes a plurality of pixels (P). The plurality of pixels each include a plurality of sub pixels including a red sub pixel (R), a green sub pixel (G) and a blue sub pixel (B). The display panel includes a red light emitting element (1r), a green light emitting element (1g), and a blue light emitting element (1b). Red light, green light and blue light respectively emitted by the red light emitting element, the green light emitting element and the blue light emitting element each have a spectrum half width of 10 nm or less. The plurality of sub pixels included in each pixel further include a yellow sub pixel (Ye). The display panel further includes a yellow light emitting element (1y) provided in an area corresponding to the yellow sub pixel. The yellow light emitting element emits yellow light having a dominant wavelength of 550 nm or greater and 600 nm or less.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: November 12, 2019
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
    Inventors: Kazunari Tomizawa, Akiko Satoh, Yoshifumi Shimodaira, Gosuke Ohashi, Yusuke Amano
  • Patent number: 10459297
    Abstract: A liquid crystal display device includes a substrate; a pixel electrode and a common electrode in a pixel region on the substrate and spaced apart from each other; and a liquid crystal layer on the pixel electrode and the common electrode and including a first liquid crystal capsule and a second liquid crystal capsule, wherein the first liquid crystal capsule includes first liquid crystal molecules having positive dielectric constant anisotropy and the second liquid crystal capsule includes second liquid crystal molecules having negative dielectric constant anisotropy.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: October 29, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Su Ha, Sang-Wook Lee, Won-Taeck Kim
  • Patent number: 10374193
    Abstract: A cracks propagation preventing, polarization film attaches to outer edges of a lower inorganic layer of an organic light emitting diodes display where the display is formed on a flexible substrate having the lower inorganic layer blanket formed thereon. The organic light emitting diodes display further includes a display unit positioned on the inorganic layer and including a plurality of organic light emitting diodes configured to display an image, and a thin film encapsulating layer covering the display unit and joining with edges of the inorganic layer extending beyond the display unit.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Yi, Sang-Hun Oh
  • Patent number: 10345670
    Abstract: To display a high-quality video regardless of a usage environment. To provide a display device which is lightweight and less likely to be broken. To reduce power consumption of the display device. The display device includes a first display element, a first transistor connected to the first display element, a second display element, and a second transistor connected to the second display element. The first display element is a reflective display element. The first display element and the first transistor are bonded to the second display element and the second transistor with an adhesive layer. Light from the second display element is extracted to the display surface on the first display element side. The light is condensed or guided by a light-condensing means or a light-guiding means provided in a path of the light from the second display element to the display surface.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: July 9, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hisao Ikeda, Fumito Isaka, Shunpei Yamazaki
  • Patent number: 10338428
    Abstract: The present disclosure provides a quantum dot display apparatus. By adding quantum dot display technology of the present disclosure can provide sophisticated quantum dot patterns in the color filter layer and have higher resolution, color saturation and color gamut of the display apparatus, the well structure and manufacture is simple. The disclosure also provides a manufacturing method of a quantum dot display apparatus, the methods includes exposure, coating, developing process of the existing color filter to contain the surface modified red and green quantum dot resin composition with more sophisticated patterns, and making high resolution, color saturation and color gamut quantum dot display apparatus, the material preparation and fabrication process of this manufacturing method is simple, less waste of materials, low production cost, suitable for mass production.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 2, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guohe Liu
  • Patent number: 10317588
    Abstract: A method of manufacturing a color conversion film includes: providing a substrate having a first surface and a second surface; forming a plurality of first indentations on the first surface and forming a plurality of second indentations on the second surface; forming a plurality of first quantum dot blocks in the first indentations; and forming a plurality of second quantum dot blocks in the second indentations.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: June 11, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: I-Wei Wu, Jung-An Cheng
  • Patent number: 10283735
    Abstract: An optical assembly in a display device includes a linear polarizer; a first quarter wave plate (QWP) layer under the linear polarizer, the first QWP layer having a negative dispersion characteristic; and a cholesteric liquid crystal (CLC) layer under the linear polarizer.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 7, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Yeonji Kim, Hyounsung Son, Dongha Yoo, Seongwoo Oh
  • Patent number: 10241340
    Abstract: Embodiments of the present disclosure disclose a three-dimensional display device and a driving method thereof. In a previous frame of display time, one part of second sub-pixels in a liquid crystal display panel are controlled to display a left eye view, and the other part of second sub-pixels display a right eye view. In a next frame of display time, positions of light emitting areas and black areas in an electroluminescent display panel are interchanged, and the second sub-pixels that display the left eye view in the previous frame display the right eye view in the next frame, and the second sub-pixels that display the right eye view in the previous frame display the left eye view in the next frame. The sum of the previous frame and the next frame of display time is less than a predetermined maximum time.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Pengcheng Lu, Ming Yang, Xiaochuan Chen, Wenqing Zhao, Lei Wang, Rui Xu, Jian Gao, Xiaochen Niu, Haisheng Wang, Changfeng Li, Bin Ma, Qian Wang
  • Patent number: 10140903
    Abstract: The invention provides an array substrate and a driving method thereof, a display panel and a display device. The array substrate comprises a plurality of circulating units and a plurality of pixel circuits. Each circulating unit consists of four sub-pixel units located in four columns and two rows, sub-pixel units in any two adjacent columns are located in different rows and have different colors, and sub-pixel units in at least one row have different colors. Each sub-pixel unit is connected to one pixel circuit, and each sub-pixel unit comprises a first sub-pixel and a second sub-pixel located in the same column and having the same color. The pixel circuit is configured to drive the first sub-pixel when a first frame picture is displayed, and to drive the second sub-pixel when a second frame picture is displayed.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 27, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chungchun Lee, Liye Duan, Yanzhao Li, Chunwei Wu, Hanjun Park
  • Patent number: 10127850
    Abstract: A field sequential display panel, a field sequential display device and a driving method are provided. The field sequential display panel includes: a lower substrate, including a base substrate and a plurality of pixel units disposed on the base substrate, each of the plurality of pixel units including a thin film transistor; an upper substrate; and a liquid crystal layer, located between the lower substrate and the upper substrate; an OLED light source, disposed on a side of the base substrate away from the thin film transistor, which is configured for providing trichromatic light for each of the plurality of pixel units, the OLED light source including: a plurality of trichromatic light source units, each trichromatic light source unit including a sub-light-source of a first color, a sub-light-source of a second color and a sub-light-source of a third color, the first color, the second color and the third color are colors different from each other.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: November 13, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Peng Liu, Xiaochuan Chen, Xue Dong
  • Patent number: 10100256
    Abstract: The present application provides a ligand-modified quantum dot material, a method of fabricating a liquid crystal display panel, and a liquid crystal display panel. The ligand-modified quantum dot material of the present application can occur a polymerization with the ligand-modified quantum dot material under ultraviolet irradiation to form a polymer, while the polymer deposits on a substrate to form a polymer film, which can replace the PI alignment film, so that an alignment process of liquid crystal is simplified, and a cost is economized; simultaneously, display quality of a liquid crystal display panel can be improved by the quantum dots anchored in the polymer film. The method of fabricating the liquid crystal display panel of the present application eliminates the fabricating process of the PI alignment film, the method has simple process and low cost, and a liquid crystal display panel obtained thereby has better display quality.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 16, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Song Lan
  • Patent number: 10079365
    Abstract: An organic light emitting diode display device is provided. The organic light emitting diode display device includes a first insulating layer disposed on a substrate and having a first refractive index, a refraction inducing layer disposed on the first insulating layer having a second refractive index, a second insulating layer disposed on the refraction inducing layer and having a third refractive index, a first electrode disposed on the second insulating layer and having a fourth refractive index, and an organic light emitting layer and a second electrode disposed on the first electrode. The second insulating layer, the first electrode, the organic light emitting layer, and the second electrode include a plurality of convex parts and a plurality of concave parts.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: September 18, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sookang Kim, Soyoung Jo, Wonhoe Koo, Jihyang Jang, Hyunsoo Lim
  • Patent number: 10063135
    Abstract: A semiconductor integrated circuit for a regulator includes an opening error detecting circuit detecting an opened state of an output terminal; a short-circuiting error detecting circuit detecting a short-circuiting state thereof; a first output terminal outputting a result detected by the opening error detecting circuit to an external unit; a second output terminal outputting a result detected by the short-circuiting error detecting circuit thereto; and a thermal shutdown circuit detecting the temperature of a semiconductor substrate and turns off the voltage control transistor if the detected temperature of the semiconductor substrate exceeds a predetermined temperature. A signal indicating the logic sum of an output signal of the thermal shutdown circuit and that of the short-circuiting error detecting circuit is outputted from the second output terminal such that the output signal of the opening error detecting circuit is not blocked based on the output signal of the thermal shutdown circuit.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 28, 2018
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Shinichiro Maki, Yoichi Takano, Katsuhiro Yokoyama
  • Patent number: 10048919
    Abstract: An method and apparatus are provided. The method includes, at an apparatus, determining a display mode to present content, selecting, based at least in part on the display mode, a display from a display module comprising a plurality of stacked displays, operatively coupled with the apparatus, and presenting at least a part of the content via the display.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 14, 2018
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Jung Hyun Kim, Dong Sub Kim
  • Patent number: 10048501
    Abstract: The present invention comprises a compact optical see-through head-mounted display capable of combining, a see-through image path with a virtual image path such that the opaqueness of the see-through image path can be modulated and the virtual image occludes parts of the see-through image and vice versa.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 14, 2018
    Assignee: Magic Leap, Inc.
    Inventors: Chunyu Gao, Yuxiang Lin, Hong Hua
  • Patent number: 10043857
    Abstract: A display panel, a fabricating method thereof and a display device are disclosed, the display device includes a plurality of pixels. Each pixel comprises: a white sub pixel comprising a tandem white OLED; and a color filter layer, disposed at the light exit side of the white sub pixel and disposed outside and along at least one side of the white sub pixel. The display panel can reduce color drift in a side view and improve viewing effect.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 7, 2018
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventor: Minghung Hsu
  • Patent number: 9983436
    Abstract: The present invention belongs to the field of display technology, and particularly relates to a backlight module and a display device. The backlight module comprises a reflecting layer and a diffuser plate arranged opposite to each other, wherein a light source is arranged between the reflecting layer and the diffuser plate, a light-exiting surface of the light source faces the reflecting layer, and light emitted from the light source is reflected by the reflecting layer to reach the diffuser plate and exits from the diffuser plate after being diffused therein. By inversely arranging an LED light source or other light sources between the diffuser plate and the reflecting layer in the backlight module, a thickness of the whole backlight module can be smaller under a condition of fixed light mixing distance, the emergent light from the backlight module is more uniform, and the cost is reduced.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 29, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., K-TRONICS (SUZHOU) TECHNOLOGY CO., LTD.
    Inventor: Zhi Yin
  • Patent number: 9978817
    Abstract: An optoelectronic component and a method to operate the optoelectronic component are disclosed. In an embodiment the optoelectronic component includes an organic light-emitting diode configured to emit radiation through a main emission surface and a liquid crystal element configured to adjust a color location of the radiation, wherein the liquid crystal element is switchable into a first state and into a second state, wherein the liquid crystal element in the first state is suitable for selectively reflecting light of a first wavelength range and in the second state is transparent, and wherein the liquid crystal element is arranged on a rear side of the organic light-emitting diode facing the main emission surface so that light of the first wavelength range that is emitted towards the rear side is at least partially reflected in a direction of the main emission surface in the first state of the liquid crystal element.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: May 22, 2018
    Assignee: OSRAM OLED GmbH
    Inventors: Karsten Diekmann, Philipp Schwamb
  • Patent number: 9971197
    Abstract: A light source module includes a printed circuit board including a wiring layer, an insulating coating layer disposed on the wiring layer, and a reflection adjustment pattern disposed on the insulating coating layer and having reflection characteristics which are different from reflection characteristics of the insulating coating layer, a light emitting chip mounted on the printed circuit board, and an optical lens arranged on an upper portion of the light emitting chip and fixed to the printed circuit board.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Joon Song, Hyuk Hwan Kim, Hyun Jeong Kim, Seok Hyun Nam, Young Keun Lee
  • Patent number: 9971076
    Abstract: A quantum dot color filter includes a first pixel region, a second pixel region, a third pixel region, and a fourth pixel region. The first pixel region includes a first color conversion layer including quantum dots configured to convert incident light into light of a first color. The second pixel region includes a second color conversion layer including quantum dots configured to convert incident light into light of the first color, and a third color conversion layer including quantum dots configured to convert incident light into light of a second color. The third pixel region includes a fourth color conversion layer including quantum dots configured to convert incident light into light of the second color. The fourth pixel region includes a scattering material layer.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 15, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kisoo Park, Donguk Kim, Youngmin Kim, Yongseok Kim, Haeil Park
  • Patent number: 9874682
    Abstract: A display apparatus according to an aspect of the present disclosure comprises a display panel, a light source device illuminating the display panel from a back side of the display panel, an optical sheet arranged between the display panel and the light source device, and a support for supporting the optical sheet. In the display apparatus, a part of a peripheral portion of the optical sheet is sandwiched and held between the display panel and the support. In the display apparatus, a remaining part of the peripheral portion of the optical sheet is not sandwiched and held between the display panel and the support.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: January 23, 2018
    Assignee: Sakai Display Products Corporation
    Inventor: Kouji Matsumoto
  • Patent number: 9812072
    Abstract: A display device includes a driving unit which outputs a driving signal, and a display panel which displays an image with at least red light, green light, and blue light in response to the driving signal where the blue light includes first color light and second color light, and a peak wavelength of the first color light is about 390 nanometers (nm) to about 410 nm and a peak wavelength of the second color light is about 480 nm to about 491 nm.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunmin Cho, Jonghyuk Kang, Daehyun Kim, Jaebyung Park, Jinseob Byun, Hyundeok Im, Keun-tae Jung, Sung-jin Hong
  • Patent number: 9803819
    Abstract: A composite transparent lighting device is described. The device has a transparent substrate, an uniform distribution of low concentration dielectric particles, reflective perimeter and perimetral discrete light sources, of improved appearance both in the inoperative state of the device, and at the same time capable of providing good quality lighting when the device is active, i.e. when the discrete light sources on the perimeter of the device are turned on.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: October 31, 2017
    Assignee: SAES GETTERS S.P.A.
    Inventors: Calogero Sciascia, Alessio Corazza, Corrado Carretti
  • Patent number: 9804319
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: October 31, 2017
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 9791610
    Abstract: A backlight module including a back plate, a light guide plate, a light-penetration layer, and a light source is provided. The light guide plate is disposed on the back plate and has a light incident surface and a light-emitting surface. The light-penetration layer is disposed on the light incident surface and adapted to absorb a light in a wavelength range. The light source is disposed on the back plate and faces the light incident surface, wherein the light source is adapted to provide a light. After the light passes through the light-penetration layer, the light enters the light guide plate from the light incident surface and is emitted from the light-emitting surface. In addition, a display having the backlight module is also provided.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 17, 2017
    Assignee: Wistron Corporation
    Inventor: Yu-Wei Chiu
  • Patent number: 9779648
    Abstract: A display device includes: a generating unit that generates display chromaticity based on a degradation value, a set chromaticity and device chromaticity, the display chromaticity being chromaticity of a white point to be displayed on the display device, the degradation value indicating a degree of degradation of a backlight, the set chromaticity being chromaticity of a white point based on user setting, the device chromaticity being chromaticity of a white point at which brightness becomes highest in the display device. The generating unit makes the display chromaticity approach the device chromaticity from the set chromaticity, as the degree of degradation indicated by the degradation value increases.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 3, 2017
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Patent number: 9774003
    Abstract: The first electrode has a convexo-concave structure including a plurality of convex portions and a plurality of concave portions at an interface with the organic compound layer. The convexo-concave structure has at least one cross section in a thickness direction of the light-transmissive substrate, the cross section being shaped in a sine-wave curve or a curve represented by a sum of a plurality of sine waves having different amplitudes or angles. A distance between a convex portion and an adjacent convex portion forming the convexo-concave structure is equal to or more than a peak wavelength of light radiated from the emitting layer and is equal to or less than a propagation distance (Lsp) of surface plasmon at the interface between the first electrode having the convexo-concave structure and the organic compound layer.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 26, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Ryo Naraoka
  • Patent number: 9753212
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: September 5, 2017
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 9753329
    Abstract: A liquid crystal display apparatus includes a liquid crystal display panel including an array substrate, an opposite substrate and a liquid crystal layer, a first polarizing plate disposed on an outer surface of the array substrate and including a first transmission axis, a second polarizing plate disposed on an outer surface of the opposite substrate and including a second transmission axis, a phase difference film disposed between the second polarizing plate and the liquid crystal layer, and a backlight unit providing light to the first polarizing plate. The phase difference film has an in-plane retardation value of about 120 nm to about 150 nm and a thickness retardation value of about 240 nm to about 300 nm.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: September 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Hoon Kim, Daewon Kim, Seungbeom Park, Seunghee Lee, Yun Jang
  • Patent number: 9741956
    Abstract: An organic light-emitting diode (OLED) apparatus includes at least one OLED illumination module, a driving unit, an optical sensing module, a control unit, and a storage unit. The driving unit is configured to adjust voltage applied to the OLED illumination module, so as to change a CCT of the OLED illumination module. The optical sensing module is configured to sense the light emitted by the OLED illumination module. The control unit is configured to receive a feedback signal from the optical sensing module so as to adjust a light intensity and the CCT of the OLED illumination module. The storage unit is configured to store photoelectric parameter data of the OLED illumination module. The control unit is configured to adjust the CCT and the light intensity of the OLED illumination module to target values according to the photoelectric parameter data.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 22, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Cheng-Yen Tsai, Chih-Ming Lai, Wen-Yung Yeh, Hsuan-Yu Lin
  • Patent number: 9733518
    Abstract: The present invention provides a liquid crystal display device. By mixing the quantum dots of different light emitting wavelengths in the liquid crystals to replace the color resist layer on the CF substrate, the liquid crystal display panel still can emit lights of RGB three colors in condition of without the color resist layer. Meanwhile, by mixing the dichroic dye with polarization function in the liquid crystals, the arrangement of one polarizer can be eliminated. In comparison with the traditional liquid crystal display panel, the liquid crystal display panel of the present invention eliminates the components, such as the color resist layer and the upper polarizer. The structure is simple, and the manufacture cost is low. Meanwhile, the color display quality of the liquid crystal display panel is great, and the light transmission ratio is high, which effectively promote the light use efficiency and the display performance of the liquid crystal display device.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: August 15, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yanan Wang, Xiaolong Ma
  • Patent number: 9723675
    Abstract: A dimming circuit includes an active dimmer configured to apply input power Vin to an amplification module or an error compensation module, the amplification module configured to amplify an output current of the active dimmer, and the error compensation module configured to correct an error or distortion of the amplification module. The amplification module and the error compensation module are connected in a feedback form.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: August 1, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Hyun Lee, Dong Keun Yoon, Jung Tae Kim, Shin Cho