Solid Body Light Emitter (e.g., Led) Patents (Class 345/82)
  • Patent number: 10347182
    Abstract: The invention provides an OLED display device, using a 3T1C driving structure, and having the source of the first TFT to the reference voltage to ensure the second TFT to operate in saturation region in normal display state through controlling the reference voltage, to ensure the grayscale continuity. By using a reference voltage metal layer to cover all sub-pixels to replace reference voltage routing to provide reference voltage to the source of the first TFT, the invention eliminates the impact of reference voltage routing on pixel aperture ration.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 9, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhenling Wang
  • Patent number: 10347199
    Abstract: The present disclosure relates to a driving method and a driving device of display panels. The driving method includes: obtaining three-color sub-pixel data of each of pixels of a current image, obtaining a saturation value corresponding to each of the pixels in accordance with the three-color sub-pixel data of each of the pixels, obtaining a current background-white ratio in accordance with the three-color sub-pixel data and the saturation value of each of the pixels, determining whether the current background-white ratio is within a predetermined adjustment range, and reducing a white grayscale value of four-color sub-pixel data of the current image in accordance with the current background-white ratio and outputting the reduced white grayscale value to a display panel. In this way, the darker pure-color effect due to the high contrast may be reduced, which effectively enhances the darker pure-color issue of the RGBW display panel.
    Type: Grant
    Filed: January 7, 2017
    Date of Patent: July 9, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Xingling Guo, Xiaoping Tan, Jiehui Qin
  • Patent number: 10345905
    Abstract: An electronic device may be provided with a housing in which display structures are mounted. Additional input-output devices such as a track pad may also be mounted in the housing. These input-output devices may include components such as touch sensors and force sensors for gathering input from a user. The display structures may include a display such as a flexible organic light-emitting diode display or a liquid crystal display that can present visual information to the user. To provide the user with tactile output, an output device such as a display or track pad may be provided with electroactive polymer structures, electromagnetic actuators, and other tactile output devices. The tactile output devices may provide protrusions, indentations, selectively stiffened and softened areas, and other tactile output for a user.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: July 9, 2019
    Assignee: Apple Inc.
    Inventors: Stephen R. McClure, Derek W. Wright, Paul S. Drzaic, Soyoung Kim, Yung-Yu Hsu, Que Anh S. Nguyen
  • Patent number: 10347184
    Abstract: A pixel compensation circuit, a driving method and a display device are disclosed. The pixel compensation circuit includes: a light-emitting element; a driving switch, a first terminal is connected to a power source voltage; a first switch and a control terminal is connected to a first scanning signal, a first terminal is connected to a data signal; a second switch, a control terminal is connected to a control signal and a first terminal is connected to the second terminal of the driving switch; a third switch, a control terminal is connected to a second scanning signal; a storage capacitor, a first terminal is connected to a control terminal of the driving switch, a second terminal is connected to the second terminal of the second switch. Through the above method, the affection of the current flowing through the light-emitting element caused by the threshold voltage of the driving switch is canceled.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: July 9, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Baixiang Han, Liang Sun
  • Patent number: 10339888
    Abstract: A light emitting diode (LED) driving circuit that sequentially drive a plurality of series-coupled LED groups comprising at least one LED is provided. The LED driving circuit includes a plurality of mid nodes coupled to terminals of the plurality of the LED groups, a common node with a reference voltage, a switch unit configured to form a plurality of current movement paths between the common node and the plurality of the mid nodes and configured to select a current movement path based on a control signal, a current measuring unit configured to detect a current flow through the common node, and a current control unit configured to generate the control signal based on the detected current flow.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: July 2, 2019
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Hyun-jung Kim, Seung-hwan Lee
  • Patent number: 10334691
    Abstract: An organic light-emitting component device comprising a first and second organic light-emitting component, a temperature detecting device configured for detecting at least one temperature, and a control unit coupled to the temperature detecting device and configured to operate the first and second component. The control unit is such that a first or second operating parameter of the first or second component, respectively, is changed, wherein the temperature detecting device comprises a first and second temperature detecting device. The first and second temperature detecting devices are designed for detecting a first and second temperature of the first and second component, respectively. The control unit is configured to change the first or second operating parameter depending on the difference between the first and second temperature, wherein the first or second operating parameter is changed such that the same temperature is established at the first and second component.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 25, 2019
    Assignee: OSRAM OLED GMBH
    Inventors: Arne Fleissner, Thomas Wehlus
  • Patent number: 10332455
    Abstract: An organic light-emitting display device includes: a display panel including a plurality of pixels, each of the plurality of pixels including an organic light-emitting device configured to emit colored light; a gamma data generating unit configured to generate gamma data corresponding to received RGB data; a correction rate calculating unit configured to determine a luminance correction rate of each of the plurality of pixels based on the gamma data respectively corresponding to the plurality of pixels; and a correction value determining unit configured to determine a luminance correction value of a color displayed via each of the plurality of pixels.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd
    Inventors: Byungki Chun, Jeonghun So, Wonwoo Jang
  • Patent number: 10325556
    Abstract: A display panel according to an embodiment of the technology is provided with a plurality of pixels. The pixels each include a light-emitting device and a pixel circuit. Each pixel circuit includes a memory circuit. The memory circuit includes a storage capacitor and a first switching transistor. The storage capacitor is configured to store a signal voltage. The first switching transistor is provided between a gate of a driving transistor and the storage capacitor. The memory circuit further includes a second switching transistor. The second switching transistor is provided between the storage capacitor and the first switching transistor, or provided on side opposite to the first switching transistor with respect to the storage capacitor.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 18, 2019
    Assignee: JOLED Inc.
    Inventor: Tetsuro Yamamoto
  • Patent number: 10319295
    Abstract: The present disclosure provides a driving apparatus for driving a light-emitting element. By dividing a light emission phase of the light-emitting element into at least two sub-phases, i.e., adding a dual-level level control signal, wherein one level causes the light-emitting element to emit light normally and the other level causes the light-emitting element to be turned off or operate under an extremely small current. By adjusting a duty ratio of the dual-level level control signal, a driving current of the light-emitting element during light emission can be adjusted to realize accurate control of the driving current of the light-emitting element. The present disclosure further provides a driving method for the driving apparatus and a display apparatus including the driving apparatus.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: June 11, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xinshe Yin
  • Patent number: 10320194
    Abstract: Disclosed herein are a system, method and non-transitory program storage device that are intended to provide a control system with quick response for a multi-level power converter. The control system may regulate an output voltage of the power converter based on one or more feedback signals. The feedback signals may be generated based on a differential between the output voltage and a reference voltage. The control system may further include one or more feed-forward signals representative of either the output voltage or transients of the output voltage. The control system may further include one or more switches in parallel with the one or more capacitors to selectively enable and/or disable direct feed-forward and capacitive feed-forward responsive to the output voltage at different levels.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: June 11, 2019
    Assignee: Apple Inc.
    Inventors: Zaohong Yang, Bogdan T. Bucheru
  • Patent number: 10317689
    Abstract: A 3D display device and a driving method thereof are provided, which includes controlling first subpixels, arranged in an electroluminescent display (ELD) panel disposed below a liquid crystal display (LCD) panel, to form luminous areas and black areas alternately arranged in the row direction, so as to form a rear grating; determining a position for displaying a left-eye view and a position for displaying a right-eye view in the LCD panel according to current positions of eyes of a viewer; and controlling second subpixels corresponding to the same position for displaying the left-eye image in the LCD panel to display same view, and controlling second subpixels corresponding to the same position for displaying the right-eye image to display same view.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: June 11, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Ming Yang, Xiaochuan Chen, Wenqing Zhao, Pengcheng Lu, Qian Wang, Jian Gao, Xiaochen Niu, Rui Xu, Lei Wang, Yingming Liu, Shengji Yang, Haisheng Wang
  • Patent number: 10304377
    Abstract: A driving circuit for an active-matrix organic light-emitting diode (AMOLED) display panel includes a first thin-film transistor (TFT), a second TFT, a third TFT, a fourth TFT, a fifth TFT, a storage capacitor, and an organic light-emitting diode (OLED). The present disclosure also proposes an AMOLED display panel. The AMOLED display panel enhances uniformity of the display brightness of the AMOLED display panel.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 28, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xiaolong Chen, Yi-Chien Wen, Ming-Jong Jou
  • Patent number: 10290245
    Abstract: The embodiments of the present disclosure provide a method and an apparatus for test and cancellation of residual image, capable of solving the problem associated with inaccurate evaluation of residual image and difficulty in accurate modification. The method for residual image test according to the present disclosure comprises: playing a residual image test picture on a display panel; applying a first fixed level signal to a pixel electrode of the display panel; and obtaining potential information of the pixel electrode via a data line.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: May 14, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hao Zhang, Wei Sun, Lingyun Shi, Haiwei Sun
  • Patent number: 10283050
    Abstract: The present invention discloses a driving power supply, a display driving circuit and an organic light emitting diode display. The driving power supply comprises a boost module and a voltage adjusting module connected to the boost module; the boost module is used for boosting an initial voltage input from an initial voltage input terminal of the driving power supply to generate a reference voltage and outputting the reference voltage to the voltage adjusting module; the voltage adjusting module is used for adjusting magnitude of the reference voltage according to colors of pixel units to be driven to generate a plurality of driving voltages, respectively, and the driving voltages corresponding to pixel units of different colors are different.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: May 7, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xinshe Yin
  • Patent number: 10285243
    Abstract: System, methods, and apparatus, including devices and software, for providing self-adjusting light sources. In one aspect, a lighting unit includes one or more LEDs and an ambient light sensor. The light sensor measures ambient light in synchronization with intermittent off periods of light generated by the LEDs. For example, the LEDs in the lighting unit can be driven by a pulse width modulated signal that turns on and off the LEDs in an alternating manner, and the ambient light can be measured when the LEDs are turned off. In some implementations, a compact lighting unit, such as a light bulb, is provided that can be easily attached to standard light fixtures and can efficiently control its own brightness based on ambient light conditions.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 7, 2019
    Assignee: SIGNIFY NORTH AMERICA CORPORATION
    Inventors: Neil Joseph, Jovi Gacusan
  • Patent number: 10276761
    Abstract: A photoelectric device package including a substrate, a first circuit layer, a carrier structure, a second circuit layer, at least one photoelectric device, and a first encapsulation layer is provided. The first circuit layer is disposed on the substrate. The carrier structure is disposed on the substrate and covers the first circuit layer. The carrier structure includes a first dielectric layer, a second dielectric layer, and an elastic layer disposed between the first dielectric layer and the second dielectric layer. The Young's modulus of the elastic layer is less than the Young's modulus of the first dielectric layer and the second dielectric layer. The second circuit layer is disposed on the carrier structure. The photoelectric device is disposed on the carrier structure and is electrically connected to the first and second circuit layers. The first encapsulation layer is disposed on the carrier structure and encapsulates the photoelectric device.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: April 30, 2019
    Assignees: Industrial Technology Research Institute, Intellectual Property Innovation Corporation
    Inventors: Yi-Hsiang Huang, Cheng-Chung Lee, Jia-Chong Ho, Wei-Han Chen, Shin-Hong Kuo
  • Patent number: 10269296
    Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is then fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 23, 2019
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 10268356
    Abstract: A video is divided into portions, and the portions are used to control moving lights. A video is displayed where each moving light becomes a superpixel of the eventual displayed video. The superpixels themselves may be formed of pixels.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 23, 2019
    Assignee: Production Resource Group, LLC
    Inventor: Jeremiah J Harris
  • Patent number: 10262592
    Abstract: A sub-pixel of an organic light emitting display device comprising an organic light emitting diode connected to a first node; a driving transistor comprising a first electrode, a second electrode connected to the first node, and a gate electrode connected to a second node; a first capacitor connected between the first node and the second node; a second capacitor connected between a programming line and the second node; a first transistor comprising a first electrode connected to the first electrode of the driving transistor, a second electrode connected to the second node, and a gate electrode connected to a scan line; and the first capacitor and the second capacitor are configured to couple the voltage of the first node and the voltage of the second node based on the programming voltage applied to the programming line.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 16, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: DongChun Kang, JongHyun Kim
  • Patent number: 10263057
    Abstract: The present disclosure discloses an OLED panel, including: a substrate and a driving thin film transistor, a switching thin film transistor, a storage capacitor, an organic light emitting device, and a light emitting device formed on the substrate, an external voltage signal is stored in the storage capacitor via the switching thin film transistor, the external voltage signal controls a magnitude of on-current of the driving thin film transistor to control the gray scale of the organic light emitting device. The present disclosure further discloses a manufacturing method of OLED panel. In the present disclosure, the drain of the low temperature polysilicon thin film transistor is in contact with the bottom electrode of the organic light emitting device so that the current supplied to the organic light emitting device is stabilized; metal-oxide-semiconductor thin-film transistor has a low leakage current, so that a better circuit-closing effect can be achieved.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 16, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Xingyu Zhou, Shipeng Chi
  • Patent number: 10255881
    Abstract: A display calibration system determines compensation factors for each subpixel in an electronic display to compensate for non-uniformity due to aging of the electronic display. The system takes a first measurement of the display at an input setting, instructs the display to operate an input sequence, and takes a second measurement of the display at the same input setting. The system determines one or more compensation factors for each subpixel of the electronic display based on the first measurement, the second measurement, and one or more previous characterizations of a similar subpixel on a similar display. A compensation matrix may be stored in memory on an HMD that houses the electronic display, or it may be stored in the cloud and accessed when the display is operating.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: April 9, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Nirav Rajendra Patel, Evan M. Richards
  • Patent number: 10257900
    Abstract: Determination devices (1) determine properties of load devices (2) that may remain unchanged for said determining and that comprise first channels with first elements (20, 25). The determination devices comprise first switches (10) for providing first invitation signals to the first channels, detectors (15, 16) for detecting first response signals that result from the first invitation signals, and controllers (17) for deriving the properties of the load devices (2) from detections of the first response signals. The properties define first maximum values of first loads of the first channels, and the controllers (17) calculate first maximum duty cycles of first supply signals for supplying the first channels in view of the first maximum values of the first loads and power capacities of power supplies (3) that produce the first supply signals. The load devices (2) may further comprise second channels with second elements (21, 26), and the determination devices (1) may further comprise second switches (11).
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: April 9, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Joris Hubertus Antonius Hagelaar, Marcel Van Der Ham, Aart Jan Vroegop
  • Patent number: 10255857
    Abstract: An image display apparatus and a method for driving the same are provided. The image display apparatus includes a display panel including a light emitting element formed in a pixel area defined by intersection of a plurality of scan lines and a plurality of data lines, the display panel being configured to display an image by controlling the light emitting element, a discharger configured to perform a discharge operation of the plurality of scan lines by time-division control with respect to a discharge line connected to the plurality of scan lines in the number less than the plurality of scan lines, and a controller configured to control the light emitting element and the discharger.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byeong-cheol Hyeon, Tae-hoon Kim
  • Patent number: 10249686
    Abstract: An organic light-emitting device proposes a primary pixel including one or more first subpixel, second subpixel, and third subpixel. The first subpixel is a white subpixel. The second subpixel includes the first light-emitting material for synthesizing the white light. The third subpixel includes the second light-emitting material. The organic light-emitting device further includes a third light-emitting material. The material for the second subpixel includes an original color zone and a synthesized color zone. The first light-emitting material for synthesizing the white light corresponding to the synthesized color zone. The transmission distance of the excitons produced by the second light-emitting material is smaller than the thickness of the function layer with the second light-emitting material. By using the organic light-emitting device, the brightness and color saturation of an image is well improved, power consumes less, and the lifespan of the organic light-emitting device is prolonged.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: April 2, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Yu Gu, Hsianglun Hsu
  • Patent number: 10244230
    Abstract: The present disclosure relates to a directional pixel for a high-angular resolution, wide field of view, multiple view display. The design teaches a directional pixel comprising a substrate, one or more pixel driving circuits, one or more nano- or micro-scale subpixels, and one or more directional optical guiding surfaces, wherein each of said one or more subpixels is comprised of a light emitting device emitting a light beam and an optical microcavity housing said light emitting device. The optical microcavity is comprised of a plurality of reflective surfaces to specifically manipulate and tune said light beam, wherein one or more of said reflective surfaces is a light propagating reflective surface which propagates said light beam out of said microcavity, and said light propagating reflective surface is connected to said one or more directional optical guiding surfaces to direct said light beam at a specific angle.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: March 26, 2019
    Assignee: Avalon Holographics Inc.
    Inventors: Wally Haas, Jennifer Campbell-Correa, Matthew Hamilton, Stephen Hill, Jordan Peckham, Chuck Rumbolt
  • Patent number: 10235940
    Abstract: The embodiment of present disclosure provides a pixel driving circuit and a driving method thereof and a display device, which can improve the undesirable phenomena of uneven display luminance of a display caused by a threshold voltage. The pixel driving circuit comprises a light emitting unit and at least one driving unit. The driving unit comprises a driving module, a compensation module and an initialization module.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: March 19, 2019
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventor: Zuquan Hu
  • Patent number: 10223969
    Abstract: Disclosed is an organic light emitting diode (OLED) display including a plurality of pixels, first and second scan signal stages, and emission control signal stages. The pixels are respectively arranged along n number of lines (n is a natural number), and each of the pixels include a first scan transistor, a driving transistor, a second scan transistor, and an emission control transistor. The first scan signal stages output first scan signals sequentially to the first scan transistors. The second scan signal stages output second scan signals sequentially to the second scan transistors. The emission control signal stages output emission control signals having a same phase to emission control transistors of two adjacent horizontal lines.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: March 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Youngju Park, SungWook Yoon
  • Patent number: 10217802
    Abstract: An organic light-emitting display (OLED) device includes a substrate having a display area including a plurality of sub-pixels each comprising an anode, an organic emitting layer and a cathode, a first data line on the substrate and applying a first data voltage to a first sub-pixel emitting light of a first color and to a second sub-pixel emitting light of a second color different from the first color, and a first line disposed between the first data line and an anode overlapping the first data line among the anodes of the plurality of sub-pixels. Parasitic capacitance that may occur between the first data line and the anode overlapping with the first data line can be reduced, and color change in the sub-pixels can be suppressed.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: February 26, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: JaeSik Hwang
  • Patent number: 10217402
    Abstract: Methods and devices useful in compensating for VDD and VTH variations in a micro light-emitting diode (micro-LED) display are provided. By way of example, an LED driver includes a first transistor having a first source coupled to an upper voltage rail (VDD), a first gate, and a first drain. The LED driver includes a second transistor having a second source coupled to the first drain of the first transistor, a second gate, and a second drain coupled to the LED. The second transistor is configured to receive the drive current signal from the first transistor and supply the drive current signal to the LED. The LED driver includes compensation circuitry configured to adjust the drive current signal such that the drive current signal is independent of the upper voltage rail (VDD) and a threshold voltage (VTH) of the first transistor or the second transistor.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: February 26, 2019
    Assignee: Apple Inc.
    Inventors: Mohammad B. Vahid Far, Yafei Bi, Shinya Ono, Hopil Bae, Chieh-Chien Lin, Hasan Akyol, Xiaofeng Wang
  • Patent number: 10210785
    Abstract: Display assembly for a portable object, wherein the display assembly includes a first, at least partially transparent, emissive display device located on the side of an observer, a second reflective display device being arranged underneath the first emissive display device, wherein said second reflective display device is capable of switching between a transparent state, in which the device does not display any information, and a reflective state, when the device is activated.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 19, 2019
    Assignee: The Swatch Group Research and Development Ltd
    Inventor: Michel Sagardoyburu
  • Patent number: 10204554
    Abstract: A pixel compensation circuit and a display are provided. First, third, fourth, and fifth switches include control terminals coupled to a light-emitting control terminal, a control signal, a first scanning signal and a second scanning signal, respectively. A second switch includes a control terminal connected to the second terminal of the second switch. A driving switch includes a control terminal connected to the second terminal of the third switch, a first terminal connected to the second terminal of the first switch, and a second terminal coupled to a second terminal of the fourth switch. The fifth switch includes a second terminal coupled to an anode of the OLED. The second terminal of the second switch is coupled to the second terminal of the third switch via a first capacitor. The second terminal of the second switch is coupled to a second reset signal via a second capacitor.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: February 12, 2019
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jie Liu
  • Patent number: 10204541
    Abstract: A display is disclosed, including a pixel structure and pixel drive circuits. The pixel structure includes a plurality of pixel groups, each pixel group including two or more pixel units. The pixel unit includes a first sub pixel, a second sub pixel and a third sub pixel. Each of the first sub pixels is connected to a first pixel drive circuit, each of the second sub pixels is connected to a second pixel drive circuit, and all the third sub pixels in one pixel group are connected to a same third pixel drive circuit. A drive method for a display is also disclosed. In the above display and the drive method, a plurality of third sub pixels in one pixel group can be driven by a same third pixel drive circuit based on the same luminance data, which reduces the number of the pixel drive circuits and allows pixel drive of high resolution.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: February 12, 2019
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Singo Kawashima, Xiujian Zhu, Xiaozhao Zhu, Long Wang
  • Patent number: 10204571
    Abstract: Provided is a display device or the like which can illuminate a subject with high-luminance illumination light. Another embodiment of the present invention provides a display device which can be used as a light source for a subject, or a display device which can be used as a light source for a subject, can display images and texts, and can switch these functions. The transistor of the light-emitting device is configured to operate in a saturation region in a period during which the light-emitting device displays text or an image, and is configured to operate in a linear region in a period during which the light-emitting device emits illumination light to a subject.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 12, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hajime Kimura
  • Patent number: 10192482
    Abstract: The present disclosure relates to a pixel compensation circuit, a scanning driving circuit and a flat display device. Control end of first controllable transistor connects to first scanning line, first end of first controllable transistor connects to data line; control end of driving transistor connects to second end of first controllable transistor, first end of driving transistor connects to first voltage end; control end of second controllable transistor connects to second scanning line, first end of second controllable transistor connects to second end of driving transistor; anode of OLED connects to second end of second controllable transistor, cathode of OLED is grounded; control end of driving transistor connects to first end of second controllable transistor through first capacitor, first end of second controllable transistor connects to second voltage end through second capacitor.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 29, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yuying Cai, Kaiyuan Ke
  • Patent number: 10192485
    Abstract: A pixel compensation circuit includes a data signal writing module, a high voltage writing module, a first reference voltage generation module, a driving transistor, a capacitor and a light emitting device. The data signal writing module is connected to a first end of the capacitor. The high voltage writing module is connected to the first end of the capacitor. The first reference voltage generation module is connected to a second end of the capacitor, an anode of the light emitting device and a drain electrode of the driving transistor. A gate electrode of the driving transistor is connected to the second end of the capacitor, a source electrode thereof is connected to the high voltage writing module, and the drain electrode thereof is connected to the anode of the light emitting device. A cathode of the light emitting device is connected to a common grounding electrode.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: January 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaoxiang He, Xiaojing Qi
  • Patent number: 10186204
    Abstract: An electro-optical device includes a display portion, a data line driving circuit, a first retention capacitor that retains the potential of the data line, a driving control circuit, and a display control circuit that supplies brightness information to the driving control circuit and also supplies an image signal to the data line driving circuit. The data line driving circuit includes a potential control line to which a potential control signal is supplied, a third retention capacitor one end of which is connected with the data line and the other one of which is supplied with a potential based on the image signal, and a first transistor that is electrically connected between the other end of the third retention capacitor and the potential control line. The driving control circuit controls the potential of the potential control signal based on the brightness information.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 22, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shin Fujita, Kazuma Kitadani
  • Patent number: 10186557
    Abstract: An OLED display device and a manufacturing method thereof, a display device and a vaporization mask are disclosed. Five sub-pixels (101) in a pixel unit (10) of the display device includes at least one red, at least one green and at least one blue sub-pixel. Four of the five sub-pixels (101) are distributed at four corners and have the same shape and size, the other one is surrounded by the four sub-pixels (101), and the four sub-pixels (101) and the one sub-pixel (101) are of different colors. Any one sub-pixel (101) at a corner of the pixel unit (10) forms a regular pattern with one sub-pixel at a corner in each of other three adjacent pixel units (10), and in the regular pattern, all of the sub-pixels are of a same color and each occupies ¼ of the pattern. The display device can reduce the difficulty of manufacturing vaporization openings of a mask and increase the display resolution.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: January 22, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lifei Ma
  • Patent number: 10177124
    Abstract: The present invention discloses a flexible micro-LED display module, comprising: a flexible substrate, a substrate protection layer, a lattice matching layer, an LED array, a transparent conductive substrate, and a light conversion layer. The light conversion layer is constituted by a plurality of red light conversion units, a plurality of green light conversion units, and a plurality of blue light conversion units, such that one pixel is formed by one red light conversion unit, one green light conversion unit, one blue light conversion unit, and several light-emitting elements. In the case of some light-emitting elements failing to radiate light normally, the defective pixel correction circuit is used to apply luminous intensity adjusting process to other light-emitting elements working normally, so as to make the flexible micro-LED display module able to display video or images with the lowest number of defective pixels capable of meeting the requirements of pixel standards.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: January 8, 2019
    Assignee: FLEX TEK CO., LTD.
    Inventors: Yao-Hsien Huang, Sheng-Hui Chen
  • Patent number: 10175564
    Abstract: A projector assembly includes a light emitting diode (LED) array, wherein the LED array has an array axis, wherein the LED array includes a plurality of LEDs arranged along the array axis, and wherein the plurality of LEDs are individually addressable. The projector assembly includes a rotatable actuator supporting the LED array, wherein the rotatable actuator has a rotation axis, and wherein the rotation axis and the array axis are parallel. The projector assembly includes a collimator positioned in optical communication with the LED array for collimating light emitted from the plurality of LEDs and a set of imaging optics positioned in optical communication with the collimator for focusing collimated light and forming a first image of the LED array at a distance, wherein the first image includes a first axis corresponding to the array axis and a second axis orthogonal to the rotation axis.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 8, 2019
    Assignee: MAGIC LEAP, INC.
    Inventor: Fahri Yaras
  • Patent number: 10176760
    Abstract: Disclosed are an organic light emitting display capable of preventing lowering of brightness and prolonging its a lifespan, and a driving method thereof. The organic light emitting display controls a level of a gate signal, by outputting a gate high voltage after controlling a level of the gate high voltage, according to a level of a threshold voltage sensed from each pixel of a display panel.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: January 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: KiSu Park, JeongHwan Kim
  • Patent number: 10175927
    Abstract: A mobile personsize display system and method of use; in general, a platform, a support frame, a module display frame, an LED panel display formed of a plurality of LED display modules having a plurality of pixels, four or more casters, a battery powered supply, a media player (electrically communicating with the plurality of display modules for controlling the display of an image(s) on the LED panel display, and a removable content storage device and; thus, functions as a rugged person size mobile, light weight, battery powered display to inform customers and passers-by about product and service offerings via a rugged person size mobile light weight battery powered display.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 8, 2019
    Assignee: NanoLumens Acquisition, Inc.
    Inventors: Richard Craig Cope, Douglas Andrew Price, Drew Fredrick Meincke, Jorge Perez-Bravo, Joshua McKellar Byrd
  • Patent number: 10170037
    Abstract: A controller, an organic light-emitting display panel, an organic light-emitting display device, and a method of driving the same able to compensate for the dropped driving voltage, thereby preventing image quality from being degraded due to the dropped driving voltage.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: January 1, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: SoekMin Choi
  • Patent number: 10172207
    Abstract: An adjustable light color temperature switching circuit includes an input module, a drive power supply connected with the input module, a regulating switch module connected with the drive power supply, a control module connected with the drive power supply and the regulating switch module, and an LED module connected with the regulating switch module. The control module includes a control chip. The LED module includes at least one first LED, at least one second LED and at least one third LED. Thus, the control chip of the control module is connected with the regulating switch module, to regulate the state of the regulating switch module, so that the at least one first LED, the at least one second LED and the at least one third LED are combined freely according to the practical requirement.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: January 1, 2019
    Assignee: Dong Guan Bright Yinhuey Lighting Co., Ltd.
    Inventor: Kevin Hsu
  • Patent number: 10164161
    Abstract: A light emitting arrangement is suggested for generating directional projections of light with sharply defined beam profile. Light from a top-emitting solid state light source (12), having reflective side-coating (34), is pre-collimated via a beam-shaping optic (16), before being propagated through a secondary collimating funnel (18), capturing any light rays with still too great an escape angle. Chip-scale package dimensions may be achieved through the use of a thin-film side-coating and undersized phosphor layers. Substrate level process flow further allows for parallel processing of a plurality of devices.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 25, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Norbertus Antonius Maria Sweegers, Floris Maria Hermansz Crompvoets, Marc Andre De Samber
  • Patent number: 10165635
    Abstract: A controller in a solid state luminaire implements a nested control loop to drive multiple, parallel-connected, heterogeneous strings of series-connected LEDs using a constant current power supply. The current through each string is independently controlled by a current regulator in series with the LEDs. An inner (current) control loop alters the relative drive strength of each LED string, to achieve desired luminous characteristics, such as CRI, CCT, and the like. An outer (voltage) control loop monitors the output voltage of the power supply, and the total current drawn. The outer control loop adjusts a gain factor applied to the control signals for each current regulator, to control the total current drawn—while maintaining the relative ratios of drive strength between the strings—so as to maintain the power supply output voltage at a substantially constant value.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 25, 2018
    Assignee: Cree, Inc.
    Inventor: Everett Bradford
  • Patent number: 10134336
    Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate signal lines and the source signal lines. A driving transistor is provided for each pixel to supply a current to the EL device. A first switch transistor is provided for each pixel on a current path through which the current is supplied to the EL device. A gate driver circuit is connected to the gate signal lines. The gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate band-shaped non-display regions and band-shaped display regions on the display screen and to move the non-display regions and the display regions relative to the display screen.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: November 20, 2018
    Assignee: JOLED INC.
    Inventors: Hiroshi Takahara, Hitoshi Tsuge
  • Patent number: 10128401
    Abstract: An optical sensor includes a substrate, light emitting units for emitting light with different wavelengths, and a photodetector. The substrate has at least one receiver for containing these light emitting units and a slot for containing the photodetector. A light guide structure of the optical sensor can be the receiver with a specific design, so that the light emitted by the light emitting units can be reflected towards a central axis of the photodetector. Thus, when at least one of the light emitting units emits light onto an object, the photodetector can receive the light reflected from the object.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: November 13, 2018
    Assignees: LITE-ON OPTO TECHNOLOGY (CHANGZHOU) CO., LTD., LITE-ON TECHNOLOGY CORPORATION
    Inventor: Hung-Jui Chen
  • Patent number: 10121414
    Abstract: A display device that includes a pixel including an organic light emitting diode (OLED), a driving transistor connected to the driving voltage and supplying a driving current to the OLED, a compensation capacitor connected to the gate electrode of the driving transistor, and a first storage capacitor and a second storage capacitor electrically connected to or blocked from the compensation capacitor, and a driving method thereof.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Myeon Han
  • Patent number: 10120150
    Abstract: An optical transceiver by hybrid multichip integration. The optical transceiver includes a PCB with a plurality of prefabricated surface bonding sites. A first chip includes a FOWLP package of multiple electronics devices embedded in a dielectric molding layer overlying a dielectric redistribution layer is disposed on the PCB by respectively bonding a plurality of conductor balls between the dielectric redistribution layer and the plurality of prefabricated surface bonding sites while exposing soldering material filled in multiple through-mold vias (TMVs) in the dielectric molding layer. The optical transceiver further includes a second chip configured as a Sipho die comprising photonics devices embedded in a SOI wafer substantially free from any electronics device process. The second chip is stacked over the first chip with multiple conductor bumps being bonded respectively to the soldering material in the multiple TMVs.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: November 6, 2018
    Assignee: INPHI CORPORATION
    Inventors: Liang Ding, Radhakrishnan L. Nagarajan, Roberto Coccioli
  • Patent number: 10115350
    Abstract: When writing a signal current from a current source to a current source circuit, noise occurs in some cases in a wiring through which a current flows, which may cause a potential of the wiring to be outside the normal range. As the potential does not turn back within the normal range easily at this time, writing to the current source circuit is delayed. According to the invention, when the potential becomes outside the normal range due to noise occurring in a wiring through which a current flows when writing a signal current from a current source to a current source circuit, a current is supplied from other than the current source, thereby the potential of the wiring can turn back within the normal range rapidly.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: October 30, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Yu Yamazaki