Liquid Crystal Patents (Class 348/790)
  • Patent number: 10262576
    Abstract: A display device, a control circuit and associated control method are provided. The display device includes the control circuit and a display panel. The control circuit receives a plurality of source frames with a source frame rate. The control circuit generates a plurality of data signals and a plurality of gate signals based on the plurality of source frames. The display panel is electrically connected to the control circuit. The display panel displays the plurality of output frames according to the plurality of data signals and the plurality of gate signal. The plurality of output frames are displayed with one of a first refresh frame rate and a second refresh frame rate. The source frame rate is equivalent to the first refresh frame rate, and the source frame rate is greater than the second refresh frame rate.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 16, 2019
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventor: Li-Tang Lin
  • Patent number: 10227252
    Abstract: Disclosed is a method for the production of a tube having, in sections, a non-circular profile by deforming, comprising: a) providing a tube, which has a circular initial profile; b) conveying the tube in a hot, malleable state through a nip, which is formed by squeezing rollers and has a first nip width, which is larger than or equal to an outer dimension of the initial profile; c) adjusting the squeezing rollers for setting a second nip width, which is smaller than the outer dimension of the initial profile, and deforming the initial profile in said hot, malleable state for obtaining said non-circular cross section; and d) adjusting the squeezing rollers for setting a third nip width, which is larger than or equal to the outer dimension of the initial profile, and severing said tube in a region having a circular cross section; so that respective end portions of said tube have a circular cross section According to the invention, the tubes can be connected reliably with connecting-members or other tube
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: March 12, 2019
    Assignee: SCHOTT AG
    Inventors: Nikolaus Schultz, Nikolaos Katsikis, Volker Trinks, Reinhard Maennl
  • Patent number: 10168469
    Abstract: Provided is a light-source device comprising a light guide plate having a rectangular shape, a light source facing a side surface of the light guide plate, a reflective sheet having a rectangular shape facing one broad surface of the light guide plate, and a plate-shaped member provided at a distance from the one broad surface. The light source side edge of the reflective sheet is located inwards of a light source side edge of the light guide plate such that a part of the one broad surface on the light source side is formed as an exposed surface, and light leakage prevention unit filling the space between the exposed surface and the plate-shaped member is provided with a protruding portion protruding towards the light source. A reflective body is provided at a position corresponding to a clearance provided between the edge of the reflective sheet and the light-leakage prevention unit.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: January 1, 2019
    Assignee: Sakai Display Products Corporation
    Inventor: Daisuke Teragawa
  • Patent number: 10142600
    Abstract: A display device includes: a projection unit that emits light depending on a first picture signal, the first picture signal including three primary color signals; a display unit that includes a screen, a transmissive liquid crystal panel, and a polarizing plate, the transmissive liquid crystal panel changing a polarizing direction of each of three primary color lights from the projection unit, depending on a second picture signal including three primary color signals; and a display control unit that generates the first picture signal and the second picture signal from an input picture signal including three primary color signals, and that outputs a picture signal for controlling the projection unit based on the first picture signal and controlling the transmissive liquid crystal panel based on the second picture signal.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 27, 2018
    Assignee: JVC KENWOOD CORPORATION
    Inventor: Ryosuke Nakagoshi
  • Patent number: 10082698
    Abstract: A display device includes a display panel, a reflection plate, and a light emitting diode light source, the display panel including a lower substrate including a lower base substrate, a liquid crystal layer disposed on the lower substrate, and a light source driving electrode disposed on a lower surface of the lower base substrate where the reflection plate is disposed under the display panel, and the light emitting diode light source is disposed on the lower surface of the lower base substrate, connected to the light source driving electrode, and emits a light to the reflection plate.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: September 25, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sungyong Kang, Haksun Kim, Taegil Kang
  • Patent number: 9984649
    Abstract: An array substrate, a driving method thereof and a display device are disclosed. In the array substrate, one second scanning signal line is disposed at a position corresponding to the 2N+1)th row of sub-pixels or the (2N+2)th row of sub-pixels, or one second scanning signal line is disposed at a position corresponding to the (N+1)th row of sub-pixels; each first switching element is disposed in a corresponding sub-pixel; each second switching element is disposed in a corresponding sub-pixel group; each first scanning signal line is configured to control a plurality of first switching elements in one row of sub-pixels; and each second scanning signal line is configured to control a plurality of second switching elements in one row of sub-pixel groups. The display device can have resolution reduced by half or three fourth in the case of full screen display, and lowers drive power consumption of the display panel without affecting display brightness.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: May 29, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yanxia Xin, Xiaofei Yang, Huiguang Yang, Xu Liu
  • Patent number: 9894191
    Abstract: A mobile terminal comprises: a case having an electric mounting portion with electronic components installed therein and having an ear jack holder part on the outer surface thereof; and ear jack connected to the ear jack holder part and having a plug hole into which a connecting plug is inserted; a plurality of first terminals equipped inside the plug hole; a second terminal connected to the first terminal and exposed to the outside of the ear jack; an antenna carrier connected to the back side of the case and having an antenna pattern formed on the surface thereof; and an ear jack electrode pattern formed in the antenna carrier, one end thereof being connected to the second terminal, wherein the mobile terminal has an ear jack structure outside the case, and thereby can prevent water from flowing into the mobile terminal through the ear jack.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: February 13, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sungpil Kim, Hosung Nam, Minho Park, Jaeyoung Han, Kwanghyun Ahn, Joonho Huh
  • Patent number: 9891372
    Abstract: A backlight module includes a light guiding plate having a side surface, at least one light source facing towards the light guiding plate, and a thermal insulation element. The thermal insulation element is configured to prevent heat from the at least one light source from transferring to the bezel and display panel. The thermal insulation element is coupled to the side surface. The at least one light source is enclosed by the light guiding plate and the thermal insulation element.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: February 13, 2018
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chih-Hsien Chen, Cheng-Fa Chung, Yue-Han Chen, I-Ting Huang
  • Patent number: 9880338
    Abstract: An illumination device according to one embodiment of the present invention comprises a light guide plate configured to emit light from inside through one surface of the light guide plate, a light source disposed to face a peripheral surface of the light guide plate, and a reflection sheet which is provided at a region face to the other surface of the light guide plate, which is opposite to the one surface, to reflect the light emitted by the light source toward the light guide plate. For distances between the light source and a peripheral edge part of the reflection sheet, a distance between a middle part of the light source in a peripheral edge direction of the light guide plate and a portion in the peripheral edge part of the reflection sheet corresponding to the middle part is the longest.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: January 30, 2018
    Assignee: Sakai Display Products Corporation
    Inventor: Ryo Yamakawa
  • Patent number: 9837026
    Abstract: The present invention provides a backlight control method, a backlight control device and a display apparatus. The backlight control method comprises steps of: acquiring a backlight information and writing the backlight information into a backlight register of system on chip; obtaining a backlight adjusting data based on the backlight information in the backlight register; sending the backlight adjusting data to a backlight control register of a field-programmable gate array, so that the backlight control register obtains a corresponding backlight control register value based on the backlight adjusting data; and adjusting backlight according to the backlight control register value. By correlating backlight option function in the system on chip (SOC) with the field-programmable gate array (FPGA) panel, the users can accomplish the control of the displayed backlight through the menus displayed on the display apparatus. This improves the using experience of the users.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: December 5, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Bendeng Lv
  • Patent number: 9671644
    Abstract: A direct backlight module and LCD device are provided. The direct backlight module includes a back plate, a backlight source mounted on the back plate, and a plurality of double lens structures mounted on the back plate and over the backlight source, the backlight source includes a plurality of LED bars, wherein the double lens structures are axisymmetrical and correspond to the LED bars, respectively, and each of the double lens structure has an axis coincides with that of the corresponding LED bar. The backlight module according to the embodiments of the present invention can improve the light efficiency of the backlight module and reduce the number of the LEDs used, and a slim design for backlight module is obtained.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: June 6, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yanliu Sun
  • Patent number: 9664939
    Abstract: A display panel includes: a backlight assembly emitting light; and a display panel receiving the light to display an image. The display panel includes: a display substrate; a counter substrate; and an anti-reflective film. The display panel includes: a plurality of pixels; signal lines electrically connected to the plurality of pixels; and an anti-reflective layer disposed on the signal lines to reduce an amount of the light reflected from the signal lines. The counter substrate is coupled with the display substrate, and is disposed between the display substrate and the backlight assembly. The anti-reflective layer includes a plurality of auxiliary layers laminated to each other, the plurality of auxiliary layers have different refractive indexes, and one of the plurality of auxiliary layers includes aluminum zinc tin oxide (AZTO).
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changoh Jeong, Kyungseop Kim, Byeong-Beom Kim, Sangwon Shin
  • Patent number: 9612474
    Abstract: Provided are a backlight assembly and a display device including the same. The backlight assembly comprises: a housing; a plurality of light sources disposed on the housing; a plurality of optical lenses disposed on the light sources, respectively; a main reflective sheet covering an upper surface of the housing and comprising a reflective portion and a main opening which exposes each of the optical lenses; and a sub reflective sheet disposed under each of the optical lenses, wherein the sub reflective sheet comprises a body portion and a fitting portion partially separated from the body portion and is fitted to the main reflective sheet in the reflective portion.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Si Joon Song
  • Patent number: 9594281
    Abstract: A liquid crystal display device preventing flicker. The liquid crystal display device includes a plurality of pixels each having a transistor, a liquid crystal element to which a first signal and a second signal having opposite polarities are alternately applied through the transistor, and a capacitor including a first electrode and a second electrode. The liquid crystal element includes a pixel electrode and a common electrode partly overlapping with each other with an insulating film interposed therebetween, and a liquid crystal layer over the pixel electrode and the common electrode. The first electrode of the capacitor is electrically connected to the pixel electrode. The potential of the second electrode changes between a first potential and a second potential having different levels after the first signal is applied until the second signal is applied, whereby a change in the voltage applied to the liquid crystal layer is reduced.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: March 14, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hiroyuki Miyake
  • Patent number: 9563110
    Abstract: There is provided a light source unit which includes an excitation light source configured to emit light in a first wavelength range, a wavelength conversion member on which the light in the first wavelength range is incident from an incident side thereof and which is made up of a member formed to include a luminescent material mixed therein which emits light in a second wavelength range having its wavelength peak on a longer wavelength side than a wavelength peak of the light in the first wavelength range, and a first optical filter which is provided at an output side of the wavelength conversion member which lies opposite to the incident side and which transmits a light component of the light in the second wavelength range which has a wavelength shorter than a third wavelength lying in a wavelength range of the light in the second wavelength range.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: February 7, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Tomoyuki Ueda
  • Patent number: 9542721
    Abstract: The display control device has a register for holding mode data for giving: a direction about which of a first display mode for performing display control of display data supplied together with a display timing signal from outside, and a second display mode for performing display control of display data written in RAM without accepting supply of a display timing signal from outside to select; and a direction about whether or not to select a scale-up mode for scaling up the display data, so that the mode data can be rewritten from the outside. The display mode is controlled based on the setting values on the register. The control register can be rewritten according to the type of data to be displayed, the system working situation, user settings, etc. Therefore, the low power consumption allowable in terms of system, and a required display performance can be obtained timely and readily.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 10, 2017
    Assignee: Synaptics Japan GK
    Inventors: Goro Sakamaki, Yosuke Okairi
  • Patent number: 9467641
    Abstract: According to one embodiment, an electronic apparatus includes a panel including a first surface and a second surface opposite to the first surface, a first metal cover configured to cover the first surface of the panel, and a second metal cover including an opening configured to expose at least a part of the second surface of the panel. The second metal cover is configured to be attached to the first metal cover, surround a circumferential surface of the panel, and be outwardly exposed.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: October 11, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tsuyoshi Shimomichi
  • Patent number: 9420218
    Abstract: A television system includes an image processing module, a display and an image capturing module. The image processing module and the image capturing module are integrated in a single chip. The image processing module performs an image processing procedure on an image input to generate an output image. The display plays the output image generated by the image processing module. In response to an image capturing instruction received, the image capturing module captures the input image or the output image.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 16, 2016
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventors: Ching-Chun Huang, Ping-Chun Wang, Chun-Chieh Chen
  • Patent number: 9356337
    Abstract: A portable terminal which can be made light, slim, short, and small is provided. The portable terminal includes an antenna mounted to an inner side surface of a body of the portable terminal, and a rear case covering at least a portion of an inner side of the body and having a battery mounting space. The antenna and the rear case are separably coupled to a rear surface of the body to be exposed to outside the rear surface of the body. The portable terminal may include a speaker module provided at an upper end of a body of the portable terminal within the body, a mounting plate mounted to one side of the speaker module within the body, and a microphone holder fixed to one surface of the mounting plate. The portable terminal can be miniaturized by reducing installation widths of parts disposed parallel to a speaker module.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 31, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Il Seo, Young-Gyun Kim, Seung-Hoon Lee
  • Patent number: 9336739
    Abstract: An object is to provide a liquid crystal display device capable of image display according to an environment around the liquid crystal display device, e.g., in a bright environment or a dim environment. Another object is to provide a liquid crystal display device capable of displaying an image in both modes of a reflective mode in which external light is used as a light source and a transmissive mode in which a backlight is used. In order to achieve at least one of the above objects, a liquid crystal display device is provided with a region (a reflective region) where display is performed with reflection of incident light through a liquid crystal layer and a region (a transmissive region) where display is performed with transmission of light from a backlight and can switch the transmissive mode and the reflective mode.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: May 10, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Hiroyuki Miyake, Kouhei Toyotaka
  • Patent number: 9224339
    Abstract: A liquid crystal display device comprising a backlight and a pixel portion including first to 2n-th scan lines, wherein, in a first case of expressing a color image, first pixels controlled by the first to n-th scan lines are configured to express a first image using at least one of first to third hues supplied in a first rotating order, and second pixels controlled by the (n+1)-th to 2n-th scan lines are configured to express a second image using at least one of the first to third hues supplied in a second rotating order, wherein, in a second case of expressing a monochrome image, the first and second pixels controlled by the first to 2n-th scan lines are configured to express the monochrome image by external light reflected by the reflective pixel electrode, and wherein the first rotating order is different from the second rotating order.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: December 29, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Hiroyuki Miyake, Kouhei Toyotaka
  • Patent number: 9197847
    Abstract: An electronic device that generates a high frame rate video signal by increasing a frame rate of an input video signal; sets a non-emission frame at a predetermined cycle on the high frame rate video signal; extends an emission time of a frame directly before the frame set to non-emission into less than a full length of a field of the frame set to non-emission; and controls a display panel to display a video based on the setting and the extending.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 24, 2015
    Assignee: JOLED INC.
    Inventors: Hideto Mori, Yasuo Inoue
  • Patent number: 9140918
    Abstract: The present invention provides a structure of a liquid crystal module, which includes a backlight module, a mold frame mounted on the backlight module, a liquid crystal display panel mounted on the mold frame, an adaptor mounted to the backlight module, and a bezel mounted on the adaptor. The adaptor includes a connection board and a positioning board perpendicularly connected to the connection board. The connection board is mounted to the backlight module. The liquid crystal display panel is positioned against the positioning board. The bezel is fixedly connected to the positioning board. Through the arrangement of the adaptor for positioning the liquid crystal display panel, the distance between an edge of an opening of the bezel that is mounted to the adaptor and an edge of a black matrix of the liquid crystal display panel can be kept constant.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: September 22, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chong Huang, Yuchun Hsiao
  • Publication number: 20150146109
    Abstract: A liquid crystal display device 10 includes an LED 17, a liquid crystal panel 11, a light guide plate 16 including at least one side-surface as a light entrance surface 16b, a chassis 14 having a bottom plate 14a, a frame 13, an LED board 18, a heat dissipation member 19 having heat dissipation properties, and a fixing screw 40. The frame 13 and the chassis 14 sandwich the liquid crystal panel 11, the LED 17, and the light guide plate 16 therebetween. The heat dissipation member 19 includes a bottom portion 19b arranged on the bottom plate 14a and a stand-up portion 19a projecting from the bottom portion 19b toward the liquid crystal panel 11. The LED board 18 is mounted on a surface of the stand-up portion 19a. The fixing screw 40 is passed through the stand-up portion 19a and the LED board 18 and a tip portion thereof is fixed in the light entrance surface 16b so that the fixing screw fixes the stand-up portion and the LED board 18 to the light guide plate 16.
    Type: Application
    Filed: June 12, 2013
    Publication date: May 28, 2015
    Inventor: Nobuhiro Kasai
  • Publication number: 20150146110
    Abstract: A backlight unit 24 includes a light guide plate 20, a heat dissipation member 36, a LED board 30, and LEDs 27 mounted on the LED board 30. The light guide plate 20 includes a light exit surface 20b on a front surface thereof, an opposite surface 10c on a rear surface thereof, a groove 20d in the opposite surface 20c, a light entrance surface 20d1 on one side surface in the groove 20d, and an opposite side surface 20d3 on another side surface in the groove 20d. The heat dissipation member 36 includes a portion in contact with the opposite side surface 20d3 and a portion on a side of one edge surface 20a of the light guide plate 20 with the one edge surface being opposite to the opposite side surface 20d3, the heat dissipation member 36 holding a part of the light guide plate 20 between the portions thereof. The light source board 30 is arranged on a surface that is opposite to a surface of the portion of the heat dissipation member 36 that is in contact with the opposite side surface 20d3.
    Type: Application
    Filed: July 12, 2013
    Publication date: May 28, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Toshikazu Matsukawa
  • Publication number: 20150138447
    Abstract: A liquid crystal display device 10 includes LEDs 17, a light guide plate 16, a mating portion 33, a positioning portion 34, a heat dissipation member 19 on which the LEDs 17 are mounted, and a restriction portion 35. The light guide plate 16 includes a peripheral surface facing the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters and a plate surface configured as a light exit surface 16a through which light exits. The mating portion 33 protrudes from a portion of a peripheral surface 16e of the light guide plate 16 adjacent to the light entrance surface 16b or is a recess formed in the peripheral surface 16e adjacent to the light entrance surface 16b. The positioning portion 34 is fitted with the mating portion 33 as a protrusion and recess fitting such that the light guide plate 16 is positioned with respect to an arrangement direction of the LEDs 17 and the light guide plate 16.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 21, 2015
    Inventor: Hirokazu Mouri
  • Patent number: 9030612
    Abstract: A display apparatus having a display driving unit on a lower part is provided. The LCD display apparatus includes a signal processing unit which performs video decoding, video scaling, and conversion into high-quality video on an input video; and a driving unit which is disposed closer to a lower end of the LCD display apparatus than to an upper end of the LCD display apparatus, and drives a liquid crystal display (LCD) panel to display a video output from the signal processing unit on the LCD panel.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 12, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jung-hwa Choi
  • Publication number: 20150124177
    Abstract: A backlight device (a lighting device) 12 includes LEDs (a light source) 17, a light guide plate 16, a chassis 14, LED boards 18, and heat dissipation members 19. The light guide plate 16 includes an end surface that is opposite the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters. One of the plate surfaces of the light guide plate 16 is configured as a light exit surface 16a through which the light exits. The chassis 14 supports another plate surface 16c of the light guide plate 16 opposite from the light exit surface 16a. Each LED board 18 includes a bottom plate 18b that extends parallel to at least the other plate surface 16c of the light guide plate 16. Each heat dissipation member 19 extends parallel to a plate surface 18b1 of the bottom plate 18b and is in surface contact with the plate surface 18b1 of the bottom plate 18b.
    Type: Application
    Filed: July 26, 2013
    Publication date: May 7, 2015
    Inventor: Kaori Ikuta
  • Patent number: 9025087
    Abstract: A liquid crystal display device includes: a liquid crystal panel; a reflection sheet arranged on a rear surface side of the liquid crystal panel, the reflection sheet being curved so that a surface facing the liquid crystal panel is recessed; and a light emitting diode substrate including: a light emitting diode array in which a plurality of light emitting diodes are arranged along a longitudinal direction; and electrodes connected to the plurality of light emitting diodes. In a circle which is centered at one light emitting diode and whose diameter is a distance from the one light emitting diode to another light emitting diode adjacent to the one light emitting diode, an area of the electrode connected to a high temperature side electrode of the one light emitting diode is larger than an area of the electrode connected to a low temperature side electrode of the one light emitting diode.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 5, 2015
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Ikuko Imajo
  • Publication number: 20150103259
    Abstract: A backlight device 12 includes LEDs 17, a light guide plate 16, an optical member 15, and a transparent plate 30. The light guide plate 16 includes a front plate surface configured as a light exit surface 16a and opposing side-surfaces configured as light entrance surfaces 16b, 16b. The light entrance surfaces 16b face the respective LEDs 17. The light guide plate 16 is configured to guide light from the LEDs 17 toward the optical member 15. The optical member 15 is arranged adjacent to the light exit surface 16a. The transparent plate 30 having lower thermal conductivity than the light guide plate 16 is arranged between the optical member 15 and at least one edge portion of the light exit surface 16a close to the light entrance surface 16b.
    Type: Application
    Filed: June 25, 2013
    Publication date: April 16, 2015
    Inventor: Akira Gotou
  • Publication number: 20150103258
    Abstract: A backlight device 12 includes a LED 17, alight guide plate 19 having an end surface as a light entrance surface 19b and a plate surface as a light exit surface 19a, a LED board 18 having a square plate surface that is opposed to the light entrance surface 19b, a board-side connector 22 arranged on the LED board 18, and a heat dissipation member 20. The heat dissipation member 20 has a positioning hole 26 that is through the heat dissipation member 20 and with which the LED board 18 is positioned with respect to the heat dissipation member 20. The heat dissipation member 20 has a hole edge portion around the positioning hole 26 and the hole edge portion includes two sides 26S1, 26S2 constituting a corner portion, and the two sides 26S1, 26S2 are parallel to two sides 18S1, 18S2 of the plate surface of the LED board 18, respectively. The two sides 18S1, 18S2 of the LED board 18 constitute a corner portion of the plate surface of the LED board 18. The positioning hole 26 overlaps the board-side connector 22.
    Type: Application
    Filed: June 27, 2013
    Publication date: April 16, 2015
    Inventor: Akira Gotou
  • Patent number: 9007545
    Abstract: A backlight device (20) is combined with a display device (10) that has a display panel (11), such as a liquid crystal panel. The backlight device includes a chassis (21), a light guide plate (22) and optical sheets (23) arranged on the rear surface of the display panel (11), and an LED package (24) that illuminates an edge face of the light guide plate. A light reflecting face formed of a material that has silver as a main component is provided in the LED package. An adsorbing material (30) that adsorbs gas such as halogen gas and hydrogen sulfide, which have characteristics that lower the reflectance of silver, is coated onto a substrate (25) on which the LED package is mounted.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: April 14, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Munetoshi Ueyama
  • Publication number: 20150098025
    Abstract: A back light unit (lighting device) 12 includes an LED (light source) 17, a light guide plate 16 including a light entrance surface 16b and a light exit surface 16a, LED boards 18 each including a plate surface facing the light entrance surface 16b and board relay terminals 22 configured to relay power to the LED 17, and a relay wiring member (relay member) 28 electrically connecting between the board relay terminals 22 and a power source board (power) PWB. The light entrance surface 16b faces the LED 17. The light from the LED 17 enters the light guide plate 16 through the light entrance surface 16b and exits through the light exit surface 16a. The LED 17 is mounted on the plate surface of the LED board 18. The board relay terminals 22 are arranged such that the relay wiring member 28 that is orientated to either one of sides in the thickness direction of the light guide plate 18 is allowed to be connected to the board relay terminals 22.
    Type: Application
    Filed: December 5, 2012
    Publication date: April 9, 2015
    Inventor: Hirokazu Mouri
  • Patent number: 8976304
    Abstract: A liquid crystal display device 10 of the present invention includes: LEDs 22; LED substrates 24 to which the LEDs 22 are attached; a liquid crystal panel 11 where display is performed using light from the LEDs 22; a light guide plate 16 that is arranged so as to overlap the side of the liquid crystal panel 11 opposite to the display surface, the edge faces of the light guide plate facing the LEDs 22; a chassis 14 arranged on the side of the light guide plate 16 opposite to the liquid crystal panel 11; a frame 13 arranged on the display surface side of the liquid crystal panel 11 and housing the LEDs 22, LED substrates 24, liquid crystal panel 11, and light guide plate 16 between the chassis 14 and the frame itself; and heat dissipating members 18 with heat dissipating characteristics that are respectively arranged abutting the LED substrates 24 and that are held between the frame 13 and the chassis 14.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 10, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tsuyoshi Ozeki
  • Patent number: 8976312
    Abstract: The present invention provides a flat panel display device, which includes a backlight system and a display panel, wherein the backlight system includes an LED light source, which includes an LED lamp and an LED substrate carrying the LED lamp; a back frame, which is disposed below the LED substrate and includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and a PCB, which is disposed below the back frame and fixed to the LED substrate. The present invention also provides a stereoscopic display device. The flat panel display device and the stereoscopic display device of the present invention save the material and space of the back frame, and lower down the cost of the flat panel display device and the stereoscopic display device.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: March 10, 2015
    Assignee: Shenzhen China Star Optoeletronics Technology Co., Ltd.
    Inventors: Quan Li, Yi-Cheng Kuo, Yu-Chun Hsiao
  • Publication number: 20150055025
    Abstract: A display device that can adjust brightness of each of a plurality of regions of an image by performing local dimming executes local dimming in a case of displaying a multi-color image (color image), and does not execute local dimming in a case of displaying a grayscale image. Moreover, in a case of displaying a mixed image of a multi-color image and a grayscale image, the display device does not execute local dimming in regions including a grayscale image among a plurality of regions of an image. Displaying a multi-color image at high contrast and displaying a grayscale image at high tone reproduction are both achieved.
    Type: Application
    Filed: February 25, 2013
    Publication date: February 26, 2015
    Inventor: Toshiyuki Gotoh
  • Patent number: 8964131
    Abstract: A display device (10) according to the present invention includes: a liquid crystal panel (11) having a display area (S1) and a frame shaped non-display area (S2) surrounding the periphery of the display area (S1); a transmissive frame section (61) that is provided on the edge part on the side of the rear surface (11b) of the liquid crystal panel (11), and that is formed into frame shape through which light can pass; and light sources (17) that are disposed inside the transmissive frame section (61), and that radiate light onto the rear surface of the liquid crystal panel (11). As a result, even if the width of the non-display area (S2) is set to be narrow, display anomalies can be prevented from occurring in the periphery of the display area (S1).
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: February 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yasutoshi Maeda
  • Publication number: 20150049255
    Abstract: A display device includes a chassis 14, a frame 13, a photo curable resin member 30a, 30b, and a heat dissipation member 19. The frame 13 includes a portion supporting the light guide plate 16 from a side of a light exit surface 16a such that the light guide plate 16 slides. The photo curable resin member 30a, 30b is arranged between an LED board 18 and the light guide plate 16 and fixed thereto to maintain a distance between a mount surface 18a of the LED board 18 and a light entrance surface 16b of the light guide plate 16. The heat dissipation member 19 having a heat dissipation property is arranged apart from the frame 13 and includes a board attachment portion 19a to which the LED board 18 is attached and a plate-like portion 19b. The plate-like portion 19b extends from the board attachment portion 19a toward the light guide plate 16. The plate-like portion 19b is a plate spring including a portion being elastically in contact with a second bottom plate 14b.
    Type: Application
    Filed: April 24, 2013
    Publication date: February 19, 2015
    Inventor: Kentaro Terashima
  • Publication number: 20150042898
    Abstract: This liquid crystal display device is provided with: an LED; a liquid crystal panel; a light guide plate; a metal chassis disposed on the reverse side of the light guide plate from the liquid crystal panel, the chassis having a step provided by bending a bottom plate, and the bottom plate being sectioned into a first bottom plate part and a second bottom plate part by the step; an LED substrate attached to the first bottom plate part, the LED being arranged on a plate surface of the LED substrate; and a frame for accommodating the liquid crystal panel, the LED, the light guide plate, and the LED substrate so as to enclose these accommodated components between the frame and the first bottom plate part while abutting the second bottom plate part, the frame being arranged on a display surface side with respect to the liquid crystal panel. By the present invention, the temperature of the frame can be prevented from becoming too high in a display device of a type not provided with a cabinet.
    Type: Application
    Filed: February 15, 2013
    Publication date: February 12, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Jo Ikuta
  • Publication number: 20150042899
    Abstract: This display device is provided with: a light source unit having a light source and a light source substrate; a display panel; a light receiving face that is disposed on the back side of the display panel, and upon which light is incident; a light guide plate having a light exiting surface that emits light toward the back side of the display panel; a wall that faces the light receiving face in such a manner that a gap is formed between the light receiving face and the wall; a light source support member that supports the light source unit, and is inserted with the light source unit in the gap etc. from the back side of the light guide plate; and an elastic member that is disposed on the light source support member, protrudes farther toward the light receiving surface than the light source, is inserted in the gap before the light source unit, and is formed of an elastic material.
    Type: Application
    Filed: February 22, 2013
    Publication date: February 12, 2015
    Inventor: Masatoshi Tomomasa
  • Publication number: 20150042897
    Abstract: The backlight device 12 of the present embodiment includes: a plurality of LEDs 17; a chassis 14 that is a plate-shaped member and on which the LEDs 17 are arranged; a plurality of diffusion lenses 40 that are fixed to the chassis 14, that individually cover the LEDs 17 from the side opposite to the chassis 14, and that exert optical effects on the light from the LEDs 17; a reflective sheet 21 that covers the plate surface of the chassis 14, that exposes the LEDs 17, and that has the lens insertion holes 21 through which the diffusion lenses 40 are respectively inserted; and reflective sheet holding members 30 that hold the reflective sheet 21 from the side opposite to the chassis 14, that engage the adjacent diffusion lenses 40 and 40, and that extend on the sheet surface of the reflective sheet 21 between the adjacent diffusion lenses 40 and 40.
    Type: Application
    Filed: November 22, 2012
    Publication date: February 12, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yuuki Namekata
  • Publication number: 20150042896
    Abstract: A display panel includes an upper plate including a first substrate, a first electrode layer formed on an inner surface of the first substrate, and an absorptive polarizing film formed on an outer surface of the first substrate and having a first polarization axis, a lower plate including a second substrate, a second electrode layer formed on an inner surface of the second substrate, and a reflective polarizing film formed on an outer surface of the second substrate and having a second polarization axis perpendicular or parallel to the first polarization axis, an LC layer filled between the upper plate and the lower plate, and an LC driving power supply connected between the first electrode layer and the second electrode layer and configured to selectively provide an LC driving voltage to the LC layer changing a polarization direction of incident light in the LC layer.
    Type: Application
    Filed: July 9, 2014
    Publication date: February 12, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-yong LEE, Hyeong-sik CHOI, Ju-seong HWANG
  • Patent number: 8953048
    Abstract: The present invention ensures the visibility of a character or a drawing displayed on a screen. The illuminance of one or more partial areas forming a display unit is measured, and a video display position is set to an area except for the partial area where the illuminance is a reference value or more.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Furukawa
  • Patent number: 8947465
    Abstract: Embodiments of the present invention comprise systems, methods and devices for display-mode-dependent adjustment of image code values.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 3, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Louis Joseph Kerofsky
  • Patent number: 8913089
    Abstract: Embodiments of the present invention comprise systems, methods and devices for increasing the perceived brightness of an image. In some embodiments this increase compensates for a decrease in display light source illumination.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: December 16, 2014
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Louis Joseph Kerofsky, Scott James Daly
  • Publication number: 20140354893
    Abstract: A television formed of a FIPEL panel that creates light in both front and rear directions. The television system has a light modulator and a backlight layer for the light modulator. The backlight layer emits light both toward the light modulator to create a television display, and away from the light modulator to create a backlight for the television. The television can be in a housing, with a transparent back. The housing can also have a bezel that can be lit by the backlight layer.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Vizio Inc.
    Inventor: Matthew McRae
  • Patent number: 8896766
    Abstract: A display apparatus that displays an image by causing a light emitting device to emit light includes a detection unit configured to detect flicker information that indicates a likelihood of occurrence of a flicker based on input image information, and a control unit configured to control both a light emission luminance and a duty ratio of a light emission time of the light emitting device according to the flicker information detected by the detection unit.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: November 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Eisaku Tatsumi
  • Patent number: 8896767
    Abstract: The backlight device (12) of the present invention is provided with: an LED (24); an LED substrate (25) on which the LED (24) is mounted; a reflective sheet (29) that reflects light from the LED (24), has a lens insertion hole (29d) into which the LED (24) is inserted, and is arranged so as to cover the mounting surface (25a1) of the LED (24) on the LED substrate (25); a first light-reflecting layer (30) that is formed in at least the portion of the mounting surface (25a1) of the LED substrate (25) that is inside the lens insertion hole (29d), and that reflects light from the LED (24); and a second light-reflecting layer (31) that is arranged in at least the portion of the mounting surface (25a1) of the LED substrate (25) that is inside the lens insertion hole (29d), has a light reflectance different from that of the first light-reflecting layer (30), and is formed to have a shape partially covering the first light-reflecting layer (30).
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: November 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yasumori Kuromizu
  • Publication number: 20140340586
    Abstract: This backlight device (illumination device) (12) is provided with: a plurality of LEDs (light sources) (17) arranged in a row at intervals; a light-guide plate (16) having a light-receiving surface (16b) that is arranged opposing the LEDs (17) and that receives light from the LEDs (17) and a light-emitting surface (16a) from which the light that entered is emitted; a reflective sheet (reflective member) (20) arranged so as to cover the surface of the light-guide plate (16) opposite to the light-emitting surface (16a) and that reflects light toward the light-emitting surface (16a); and an extended reflective part (26) provided in an edge portion of the reflective sheet (20), the extended reflective part (26) extending toward the LEDs (17) from the light-receiving surface (16b), the extended reflective part (26) having openings (27) formed therein that correspond to the arrangement pattern of the LEDs (17), thereby being arranged corresponding to the non-arrangement pattern where the LEDs (17) are not provided.
    Type: Application
    Filed: September 7, 2012
    Publication date: November 20, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Kentaro Terashima
  • Publication number: 20140313424
    Abstract: A liquid crystal display device includes: a liquid crystal panel; a reflection sheet arranged on a rear surface side of the liquid crystal panel, the reflection sheet being curved so that a surface facing the liquid crystal panel is recessed; and a light emitting diode substrate including: a light emitting diode array in which a plurality of light emitting diodes are arranged along a longitudinal direction; and electrodes connected to the plurality of light emitting diodes. In a circle which is centered at one light emitting diode and whose diameter is a distance from the one light emitting diode to another light emitting diode adjacent to the one light emitting diode, an area of the electrode connected to a high temperature side electrode of the one light emitting diode is larger than an area of the electrode connected to a low temperature side electrode of the one light emitting diode.
    Type: Application
    Filed: February 28, 2014
    Publication date: October 23, 2014
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Ikuko IMAJO