Patents Examined by Hoan C. Nguyen
  • Patent number: 10620475
    Abstract: The present disclosure provides a dual-view display panel and a display device. The dual-view display panel includes a backlight source, a liquid crystal grating and a color film layer. The backlight source is configured to provide a collimated light. The liquid crystal grating is provided in a light-exiting direction of the backlight source. The color film layer is provided on a side of the liquid crystal grating away from the backlight source. The color film layer comprises a plurality of first pixel areas and a plurality of second pixel areas. A light-shielding area is provided between the first pixel area and the second pixel area which are adjacent to the light-shielding area. The liquid crystal grating is used to diffract the collimated light emitted by the backlight source to the first pixel area or the second pixel area.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: April 14, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jifeng Tan
  • Patent number: 10613385
    Abstract: The present disclosure provides a display device and a manufacturing method thereof and a method for converting a color gamut of a display device. The display device comprises a display panel which comprises a display substrate and a plurality of pixel units arranged on a first surface of the display substrate, wherein each pixel unit comprises a plurality of sub-pixels which comprises a variable color sub-pixel used for emitting light of at least one predetermined color according to a predetermined color gamut. Thus, the light of the predetermined color emitted by the variable color sub-pixels can alleviate the phenomenon of color shift of the display device and thereby improve multiple optical properties of the display device, and the display device can meet the requirements of different color gamuts, while not causing lowering of the optical properties.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 7, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yifu Chen
  • Patent number: 10598991
    Abstract: A display panel, a display panel cutting method, and a display device are provided. The display substrate includes at least two sub display regions and at least one blocking unit. Each of the at least one blocking unit includes two strip-like blocking patterns that are arranged at two sides of an adhesive cutting line on the display substrate respectively, and arranged in periphery regions of two adjacent sub display regions respectively.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: March 24, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shiqiang Huang
  • Patent number: 10593283
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: March 17, 2020
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Wei-Chih Hsu, Chen-Hao Su, Yu-Chen Liu
  • Patent number: 10578914
    Abstract: The liquid crystal panel has a front-surface plate, a front-side polarizing plate, a liquid crystal display element, and a rear-side polarizing plate in an integrally laminated state, in which the front-surface plate and the front-side polarizing plate are in the state of being laminated with each other via an adhesive layer having a thickness of 2 ?m or more, and the liquid crystal panel satisfies Formula A-1: 2020 ?mGPa>ECp×dCp×?Cp×(100?P)/100+(Ef×df×?f)?(Er×dr×?r)>0 ?mGPa (ECp is the modulus of elasticity, dCp is the thickness, and ?Cp is the humidity dimensional change rate, of the front-surface plate, Ef is the modulus of elasticity, df is the thickness, and ?f is the humidity dimensional change rate, of the front-side polarizing plate, Er is the modulus of elasticity, dr is the thickness, and ?r is the humidity dimensional change rate, of the rear-side polarizing plate, P is the stress relaxation rate of the adhesive layer).
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 3, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keigo Ueki, Katsuyuki Takada
  • Patent number: 10578908
    Abstract: A liquid crystal display panel is disclosed. The liquid crystal display panel includes a color filter substrate, an array substrate, and a liquid crystal layer. A surface of the array substrate facing the color filter substrate is divided into an active area and a non-active area. The non-active area includes a second region where no metal wiring is arranged. The surface of the array substrate facing the color filter substrate is non-flat in the second region. According to the present disclosure, a sealing strength between the color filter substrate and the array substrate can be improved, and pollution on a liquid crystal layer of the liquid crystal display panel can be avoided.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: March 3, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaolong Meng
  • Patent number: 10564477
    Abstract: An object is to provide a phase difference compensation element capable of improving the contrast of a liquid crystal display device while solving the problems of a high cost, an increase in the lead time, an increase in the mounting space, and the durability. A phase difference compensation element includes: a phase difference imparting and reflection preventing layer; a first birefringence layer and a second birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and a surface of a transparent substrate is not 90 degrees; a third birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and the surface of the transparent substrate is 0 degrees, wherein, when segments acquired when the main axes of the first, second, and third birefringence layers are projected onto the transparent substrate are respectively denoted by a segment A, a segment B, and a segment C, relations of the following (1) and (2) are satisfied.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: February 18, 2020
    Assignee: Dexerials Corporation
    Inventors: Nobuyuki Koike, Akio Takada
  • Patent number: 10564478
    Abstract: A liquid crystal panel structure and a method for manufacturing the liquid crystal panel are provided. Both the first alignment layer of the upper layer and the second alignment layer of the lower substrate employ the silicon nitride films, of which the surfaces are implemented with ion beam bombardment, and in comparison with the utilization of PI alignment film material, the alignment layers possess the physical, chemical properties of silicon nitride, which are more stable, and thus can provide the better reliability for the liquid crystal panel; besides, the proper pre-tilted angle provided by the surface of the silicon nitride films with ion beam bombardment can be adjusted in a certain range, and thus can provide the proper pre-tilted angle for the liquid crystal molecules, and compared with existing PSVA technology, the procedure of utilizing UV light irradiation to provide a pre-tilted angle for the liquid crystal is not required.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 18, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Ji Li
  • Patent number: 10564336
    Abstract: A liquid crystal element (1) includes helical structures (7). The liquid crystal element (1) has a light incidence surface (13) on which light is incident and a reflective surface (17) which reflects the light coming through the light incidence surface (13). Each helical structure (7) includes structure units (9). Each structure unit (9) includes liquid crystal molecules (11) stacked in a twisted manner to form a helix. A second end (E2) of one structure unit (9) of structure units (9) adjacent to one another in a first direction (A1) serves as a first end (E1) of the other structure unit (9). Directions of orientation of the liquid crystal molecules (11) at the first ends (E1) included in the helical structures (7) are identical. The reflective surface (17) includes at least one of the first ends (E1) included in each helical structure (7). The reflective surface (17) is non-parallel to the light incidence surface (13).
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: February 18, 2020
    Assignee: OSAKA UNIVERSITY
    Inventor: Hiroyuki Yoshida
  • Patent number: 10551677
    Abstract: An aspect of a liquid crystal display device includes an element substrate, a counter substrate, and a liquid crystal layer sandwiched by the element substrate and the counter substrate. The counter substrate includes a common electrode, a first lens layer that collects light incident to the counter substrate, a second lens layer that collects the light, and a first phase difference compensation layer that is arranged between the first lens layer and the second lens layer in a thickness direction perpendicular to the common electrode and compensates a phase difference of the light generated by the liquid crystal layer.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 4, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yutaka Tsuchiya
  • Patent number: 10527896
    Abstract: Various circuits may benefit from suitable protection. For example, certain displays, such as active matrix liquid crystal displays, may benefit from enclosures configured to protect driver circuits from high intensity radiated fields. A system can include a first protective conductive coating layer. The system can also include a first insulating layer on the first protective conductive layer. The system can further include a signal conductive layer on the insulating layer. The system can additionally include a driver layer mounted to the signal conductive layer. The system can also include a second insulating layer above the driver layer. The system can further include a second protective conductive coating layer on the second insulating layer. The system can additionally include one or a plurality of conductive elements disposed between the first protective conductive coating layer and the second protective conductive coating layer to form an enclosure around the driver layer.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 7, 2020
    Assignee: L3 TECHNOLOGIES, INC.
    Inventors: Michael G. Abernathy, Mark W. Fletcher, Sanjay Tripathi
  • Patent number: 10527879
    Abstract: A liquid crystal display panel and a manufacturing method are disclosed. The panel includes: an array substrate, a passivation layer, a planarization layer, a black photo spacer (BPS) material layer and a first alignment layer which are sequentially stacked on the array substrate, wherein a projection of the first alignment layer on the BPS material layer does not exceed a region of the BPS material layer; wherein the BPS material layer is provided with multiple grooves, the multiple grooves are distributed along an inner side of an edge of the BPS material layer, a sealant is formed on the BPS material layer; wherein the sealant and the first alignment layer are respectively located at two sides of the multiple grooves. The present invention does not prepare retaining walls on the array substrate, and the flow of the sealant and the first alignment layer can also be blocked.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 7, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yanxi Ye
  • Patent number: 10520762
    Abstract: A display device and a method of manufacturing the same, the device including a support panel including a body and a guide, the guide being on one side of the body; a protective cap spaced apart from the guide at one side of the support panel; a first substrate on the support panel; and a flexible printed circuit board on one side of the first substrate, wherein an accommodation space is defined between the protective cap and the guide, and the flexible printed circuit board is accommodated in the accommodation space.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: December 31, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyu Bong Jung, Min Soo Kim
  • Patent number: 10520743
    Abstract: A backlight module, a display device and a method for driving the same are disclosed, such that brightness of display device can be increased when rendering 3D display. The backlight module includes a light guide plate, a light-splitting structure and an edge light source, wherein the light-splitting structure includes a plurality of strip-shaped first light-splitting units and a plurality of strip-shaped second light-splitting units, the first light-splitting unit and second light-splitting unit are alternately disposed on the light output surface of the light guide plate, each of first light-splitting unit and second light-splitting unit comprises at least one grating strip, the first light-splitting unit is configured for directing light to output towards a first position external to the backlight module, and the second light-splitting unit is configured for directing light to emit towards a second position external to the backlight module.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 31, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Jian Gao, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Pengcheng Lu, Ming Yang, Qian Wang, Xiaochen Niu, Rui Xu, Lei Wang, Pengpeng Wang
  • Patent number: 10514569
    Abstract: An array substrate, a display panel, and a display device are provided. The array substrate includes a plurality of scanning lines parallel with each other, and a plurality of data lines parallel with each other, the scanning lines being intersected and insulated with the data lines to form a plurality of pixel areas. Each of the pixel areas includes a white sub-pixel and at least one color sub-pixel. Control ends of the white sub-pixel and the at least one color sub-pixel are respectively connected with the corresponding scanning lines, and input ends of the white sub-pixel and the at least one color sub-pixel are respectively connected with the corresponding data lines. Wherein the white sub-pixel includes a first white displaying pixel and a second white displaying pixel, and a voltage divider is connected in series between the first white displaying pixel and the second white displaying pixel.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: December 24, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Zhenzhou Xing
  • Patent number: 10514570
    Abstract: According to one embodiment, a display device includes a first arrangement layer and a second arrangement layer. The first layer includes a first pixel, a second pixel, and a third pixel are arranged periodically in one direction. The second layer is opposed to the first layer, and the second layer includes a first element, a second element, and a third element which are arranged periodically to correspond to the first pixel, the second pixel, and the third pixel, respectively, and separate emission light to light of wavelength corresponding to a first color, light of wavelength corresponding to a second color, and light of wavelength corresponding to a third color to be emitted on the first pixel, the second pixel, and the third pixel, respectively.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: December 24, 2019
    Assignee: Japan Display Inc.
    Inventors: Chikyu Nakaoka, Masaaki Kabe, Tatsuya Yata, Kojiro Ikeda
  • Patent number: 10514573
    Abstract: Various embodiments may provide a device for controlling an electromagnetic wave. The device may include a first electrode layer. The device may also include a second electrode layer. The device may further include a matrix layer between the first electrode layer and the second electrode layer. The matrix layer may include a liquid crystal layer. The matrix layer may also include at least one resonator element in contact with the liquid crystal layer. The liquid crystal layer may be configured to switch from, at least, a first state to a second state in response to a voltage applied between the first electrode layer and the second electrode layer, thereby changing an optical property of the matrix layer to control the electromagnetic wave received by the matrix layer.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 24, 2019
    Assignee: Agency for Science, Technology and Research
    Inventors: Arseniy Kuznetsov, Ramon Jose Paniagua Dominguez
  • Patent number: 10509280
    Abstract: A liquid crystal panel includes a plurality of color resist blocks and a plurality of spacers arranged at one side of the color resist blocks. Each color resist block includes a first zone and a second zone arranged in sequence in the first direction. The plurality of color resist blocks include a first color resist block, a second color resist block, and a third color resist block arranged in sequence in the first direction. The first zone of the third color resist block is formed with a first through hole. The third color resist block includes a first extension extending from the second zone of the third color resist block in a first direction. The plurality of spacers include a first spacer, which is set at a location corresponding to and the first extension section or the second zone of the third color resist block.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: December 17, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Liyang An
  • Patent number: 10503005
    Abstract: In a wire grid polarization element, a second light transmissing substrate is disposed on first surface side of the first light transmissing substrate on which a metallic wire grid is formed, and on the first surface of the first substrate, a recessed portion is formed in a region overlapping a region where the wire grid is formed in plan view. For this reason, it is possible to secure a space in which the wire grid is disposed between the first substrate and the second substrate without using a spacer. In addition, at the time of sealing the space in which the wire grid is disposed, the first substrate and the second substrate are bonded to each other on the outer side of the recessed portion.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: December 10, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsutaka Ohori, Koichiro Akasaka, Yoshitomo Kumai
  • Patent number: 10495798
    Abstract: Disclosed herein are techniques for displaying images on multiple image planes in a near-eye display system. A switchable optical device includes a first polarizer configurable to polarize incident light into light of a first circular polarization state, and a second polarizer configurable to transmit light of a second circular polarization state and reflect light of the first circular polarization state into light of the first circular polarization state. The switchable optical device also includes a partial reflector positioned between the first polarizer and the second polarizer. The partial reflector is configured to transmit light from the first polarizer and reflect light from the second polarizer, where the reflected light and the light from the second polarizer have different polarization states. At least one of the first polarizer or the second polarizer includes a cholesteric liquid crystal (CLC) circular polarizer that is switchable by a voltage signal.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: December 3, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Fenglin Peng, Ying Geng, Yusufu Njoni Bamaxam Sulai, Mengfei Wang, Lu Lu, Jacques Gollier