Patents by Inventor Daekeun Yoon

Daekeun Yoon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9121984
    Abstract: The disclosure discloses a backlight unit and a liquid crystal display comprising thereof. The backlight unit comprises a light guiding plate comprising a plurality of light guiding plate units, which are arranged as a matrix along longitudinal and traversal directions, with line-shaped gaps extending respectively along traversal or longitudinal direction existing between two adjacent light guiding plate units; a light source provided at a side of light guiding plate; and a diffusing sheet provided above the light guiding plate. At a position corresponding to the line-shaped gap between the two adjacent light guiding plate units, the diffusing sheet has a shape of line-shaped projection, and the line-shaped projection has a projected direction in a direction of the light emitted from the light guiding plate unit. According to the disclosure, the uniformity of the backlight may be improved.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 1, 2015
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qing Ma, Daekeun Yoon, Fei Shang
  • Publication number: 20150241720
    Abstract: The present invention relates to a backlight module for providing light to a liquid crystal panel and a display device. The backlight module comprises an optical membrane material arranged at a back surface of the liquid crystal panel, and a module frame surrounding the optical membrane material. An end surface of the module frame facing the liquid crystal panel is located at the back surface of the liquid crystal panel, and the module frame supports the liquid crystal panel through the end surface. The display device comprises a liquid crystal panel and the backlight module. According to the present invention, the end surface of the module frame facing the liquid crystal panel is located at the back surface of the liquid crystal panel. As a result, it is able to provide a very narrow end surface of the module frame, thereby to narrow a bezel of the display device.
    Type: Application
    Filed: June 18, 2014
    Publication date: August 27, 2015
    Inventors: Zhidan Zhang, Daekeun Yoon, Qing Ma
  • Publication number: 20150235597
    Abstract: The present invention provides a light source control module, a backlight module and driving method thereof which can overcome the problems of insufficient color amount, poor performance and lowered color saturation. A light source control module of the present invention is used for separately controlling illumination colors and/or brightness of each light source in the backlight module according to image information. The driving method of the backlight module comprises: calculating representative color and/or brightness of each image section based on image information, wherein each image section corresponds to a light output area on the output surface of the backlight module, each light output area is illuminated by one light source in the backlight module; adjusting the illumination colors and/or brightness of each light source such that the color and/or brightness of each light output area is in conformity with the representative color and/or brightness of corresponding image section.
    Type: Application
    Filed: July 31, 2014
    Publication date: August 20, 2015
    Inventors: Zhiming MENG, Daekeun YOON, Weihao HU, Zongze HE, Jianming WANG
  • Publication number: 20150226888
    Abstract: The present invention provides a diffuser plate assembly. The diffuser plate assembly includes a first diffuser plate and a second diffuser plate located under the first diffuser plate, and a gap is formed therebetween. Correspondingly, the present invention also provides a backlight comprising the diffuser plate assembly and a display device comprising the backlight. Compared with the prior art, the diffuser plate assembly provided by the present invention can enable light emitted by a light source to irradiate a display panel more uniformly, and the thicknesses of the backlight and the display device can be reduced.
    Type: Application
    Filed: July 31, 2014
    Publication date: August 13, 2015
    Inventors: Hongli ZHU, Lili JIA, Zhidan ZHANG, Daekeun YOON
  • Publication number: 20140218970
    Abstract: A light guide plate used for an LED backlight source. The LED backlight source comprises a plurality of LED lamps. The light guide plate comprises a light guide plate body (24). The light guide plate body (24) is provided thereon with a plurality of dots (242), and there is a light guide region in the light guide plate body (24). In the light guide region, the diameters of the dots in the same dot row progressively increase from the middle to either side, and diameters of the dots in the same dot column progressively increase in the direction away from the LED lamps.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 7, 2014
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO, LTD.
    Inventors: Yanping Wu, Fei Shang, Daekeun Yoon, Guanghui Xiao
  • Publication number: 20140126240
    Abstract: The invention discloses a light-emitting unit, comprising a backplane and a light source provided on the backplane. The light source includes a plurality of sub light sources. The light-emitting unit further comprises light reflecting structures provided between the sub light sources. The light reflecting structures are configured to reflect the light radiating thereon from the sub light sources into the light-emitting direction of the light-emitting unit. Accordingly, the invention discloses a backlight module including the light-emitting unit and a display device including the backlight module. The backlight module in the invention is not only capable of improving a Hotspot phenomenon, but also capable of preventing the light source in the light-emitting unit from directly contacting with a light guide plate.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 8, 2014
    Applicants: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wenjia Sun, Xiuyun Chen, Daekeun Yoon
  • Publication number: 20140092344
    Abstract: Embodiments of the present invention disclose a backlight assembly and a liquid crystal display device, and the backlight assembly comprises: a light guide plate; a base plate, disposed on an opposite side of a light emitting side of the light guide plate; and a back plate, disposed on a side of the light guide plate along an edge of the base plate, wherein an edge-type light source is disposed on a side facing the light guide plate of the back plate, the back plate is pivotally connected with the base plate via a rotation axis, and the back plate rotates about the rotation axis.
    Type: Application
    Filed: July 18, 2013
    Publication date: April 3, 2014
    Inventors: Hai Chi, Daekeun Yoon
  • Publication number: 20140078779
    Abstract: Embodiments of the invention relate to a light guide plate, a method for fabricating the same and a backlight unit. The light guide plate comprises a low density region and a plurality of high density regions, wherein the plurality of high density regions are separately disposed on a light incident side of the light guide plate.
    Type: Application
    Filed: July 17, 2013
    Publication date: March 20, 2014
    Inventors: Zhidan ZHANG, Hongli ZHU, Daekeun YOON, Qing MA, Hai CHI, You LI
  • Publication number: 20140071380
    Abstract: The disclosure discloses a backlight unit and a liquid crystal display comprising thereof. The backlight unit comprises a light guiding plate comprising a plurality of light guiding plate units, which are arranged as a matrix along longitudinal and traversal directions, with line-shaped gaps extending respectively along traversal or longitudinal direction existing between two adjacent light guiding plate units; a light source provided at a side of light guiding plate; and a diffusing sheet provided above the light guiding plate. At a position corresponding to the line-shaped gap between the two adjacent light guiding plate units, the diffusing sheet has a shape of line-shaped projection, and the line-shaped projection has a projected direction in a direction of the light emitted from the light guiding plate unit. According to the disclosure, the uniformity of the backlight may be improved.
    Type: Application
    Filed: September 28, 2012
    Publication date: March 13, 2014
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qing Ma, Daekeun Yoon, Fei Shang
  • Publication number: 20140057082
    Abstract: Embodiments of the invention provide a mask plate, a method for fabricating an array substrate using the mask plate, and an array substrate. The mask plate is used for fabricating the array substrate by a stitching exposure. The mask plate comprises 2n+1 mask patterns successively arranged and parallel to each other, where n is any natural number, each mask pattern includes a light-shielding pattern corresponding to a portion of a data signal line on the array substrate. The light-shielding patterns of two adjacent mask patterns are discontinuous, and the portions on both sides of the light-shielding pattern of the mask pattern located in the middle of the mask plate are asymmetric.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 27, 2014
    Inventors: Yanping Liao, Jing LV, Xibin Shao, Daekeun Yoon, Ying Wang, Zhenyu Zhang
  • Patent number: 8596808
    Abstract: Provided is a backlight module comprising a substrate comprising a plurality of honeycombed protrusions arranged on a surface; main tricolor light emitting diodes (LEDs), wherein on each of the honeycombed protrusions of the substrate is provided one of the main tricolor LEDs, and sub tricolor LEDs, each of which is provided between two neighboring honeycombed protrusions.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: December 3, 2013
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Daekeun Yoon, Sangjig Lee
  • Patent number: 8553177
    Abstract: A light guide plate comprising an incidence surface, a lower surface, an upper surface and an opposite surface which is opposite to the incidence surface, wherein the length of the upper surface is less than the length of the lower surface, and an acute angle is formed between the opposite surface and the direction of elongation line of the upper surface.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: October 8, 2013
    Assignee: Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiaopan Zheng, Haikuo Gao, Daekeun Yoon
  • Publication number: 20130148329
    Abstract: A direct-type backlight device and a display device having the direct-type backlight device are disclosed. The direct-type backlight device comprises: a backplane, a plurality of light-emitting units arranged on the backplane, and a diffusion plate over the light-emitting units, wherein at least one of the light-emitting units is provided at an upper end thereof with a transparent supporter for supporting the diffusion plate.
    Type: Application
    Filed: September 5, 2012
    Publication date: June 13, 2013
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hao Zhou, Qing Ma, Daekeun Yoon, Fei Shang
  • Publication number: 20120092591
    Abstract: A light guide plate comprising an incidence surface, a lower surface, an upper surface and an opposite surface which is opposite to the incidence surface, wherein the length of the upper surface is less than the length of the lower surface, and an acute angle is formed between the opposite surface and the direction of elongation line of the upper surface.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaopan ZHENG, Haikuo GAO, Daekeun YOON
  • Publication number: 20120075556
    Abstract: A backlight is provided and comprises an optical fiber light-emitting panel comprising an optical fiber light-emitting panel comprising at least one optical fiber light-emitting unit, wherein each optical fiber light-emitting unit comprises a light-emitting portion and a light-guiding portion which are connected together, the light-emitting portion forms a plane emitting area and the light-guiding portion extends to a side edge of the optical fiber light-emitting panel; and at least one illuminating light which is provided at the end surface of the light-guiding portion. Further, a liquid crystal display is provided.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Haikuo GAO, Daekeun YOON, Xiaopan ZHENG, Ji CHEN, Hetao WANG
  • Patent number: 7993026
    Abstract: The invention disclosed a light source, comprising a light tube and a plurality of prism members disposed on an outer surface of the light tube for reducing amount of external lights entering the light tube. According to the invention, the prism members disposed on the outer surface of the light tube can not only focus the light emitting from the light tube, but also increase the possibility of total reflection of the incident light.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 9, 2011
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Daekeun Yoon, Chulyoun Kim, Haijun Liu
  • Patent number: 7854533
    Abstract: The invention disclosed a light source, comprising a light tube and a plurality of prism members disposed on an outer surface of the light tube for reducing amount of external lights entering the light tube. According to the invention, the prism members disposed on the outer surface of the light tube can not only focus the light emitting from the light tube, but also increase the possibility of total reflection of the incident light.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 21, 2010
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Daekeun Yoon, Chulyoun Kim, Haijun Liu
  • Publication number: 20100238647
    Abstract: Provided is a backlight module comprising a substrate comprising a plurality of honeycombed protrusions arranged on a surface; main tricolor light emitting diodes (LEDs), wherein on each of the honeycombed protrusions of the substrate is provided one of the main tricolor LEDs, and sub tricolor LEDs, each of which is provided between two neighboring honeycombed protrusions.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 23, 2010
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Daekeun YOON, Sangjig LEE
  • Patent number: 7726866
    Abstract: Disclosed is a backlight reflection plate and a backlight module using the reflection plate. The reflection plate encloses a light source. The reflection plate comprises a reflection substrate with a surface facing the light source. The reflection plate comprises a first region close to one end of the light source with a higher brightness and a second region close to the other end of the light source with a lower brightness. The reflectivity of the first region is smaller than that of the second region.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: June 1, 2010
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Daekeun Yoon, Sangjig Lee, Chulyoun Kim
  • Publication number: 20100073599
    Abstract: A backlight module for a liquid crystal display, comprising: a light guiding plate comprising one or more incident surface and one light emitting surface; a reflecting film provided on a side of the light guiding plate opposite to the light emitting surface; and a reflecting type polarizing plate disposed directly on the light emitting surface of the light guiding plate and comprising a metal grating.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Inventors: Daekeun YOON, Sangjig LEE, Young JEONG