Light Detection Means (e.g., With Photodetector) Patents (Class 345/207)
  • Patent number: 9946074
    Abstract: An apparatus for use with a head wearable display includes a curved eyepiece for guiding display light received at an input surface peripherally located from a viewing region and emitting the display light along an eye-ward direction in the viewing region. The curved eyepiece includes an optical combiner, an eye-ward facing surface that is concave, a world facing surface that is convex, and a curved lightguide disposed between the eye-ward facing and world facing surfaces to guide the display light via total internal reflections from the input surface to the viewing region. The optical combiner is disposed within the curved eyepiece at the viewing region to redirect the display light towards the eye-ward direction. The optical combiner includes a pattern of reflective elements separated by interstitial regions. The interstitial regions pass ambient light incident through the world facing surface such that the viewing region is partially see-through.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: April 17, 2018
    Assignee: Google LLC
    Inventors: Ozan Cakmakci, James C. Dunphy, Oscar A. Martinez
  • Patent number: 9886613
    Abstract: Devices, systems, and techniques are provided for integrating a touch screen with a fingerprint detection module as an assembly for a mobile device. The integrated touch screen/fingerprint sensor assembly includes at least two glass layers bonded together to provide overall mechanical strength for the touch screen display. The upper glass layer is a toughened/hardened cover glass that does not have an opening for fitting the fingerprint detection module through this glass layer. The lower glass layer is a support glass layer underneath the hardened cover glass to provide additional mechanical strength and to include an opening at a location close to an end of the support glass layer. The integrated touch screen/fingerprint sensor assembly also includes a fingerprint detection module positioned within the opening of the support glass layer and directly underneath the hardened cover glass.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: February 6, 2018
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Bo Pi, Yi He
  • Patent number: 9874478
    Abstract: The present system provides a sensor clip system that can be clipped to luminaires of a plurality of shapes and sizes and method of using the sensor clip. Some of the sensors are upward looking (into the luminaire) while others are downward looking (away from the luminaire); and thus face in substantially opposite directions. The sensor clip is adjustable in one, two or three dimensions to be able to easily fit with different sized and shaped luminaires, such that the upward looking sensors may face the incoming light and downward looking sensors face away from the light. The sensor clip system may also provide attenuation of the luminous intensity of the emitted light coming out of the luminaires and extends the longevity and usability of the embedded sensor.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: January 23, 2018
    Assignee: Gooee Limited
    Inventors: Simon Coombes, Jonathan Couch, Shmuel Silverman, Andrew Johnson
  • Patent number: 9872363
    Abstract: A method of operating a lighting grid having lighting units the method—including receiving an input signal from a sensor or a user interface by a first lighting unit, determining a control signal for controlling an LED driver and/or LED assembly of the first lighting unit based on the input signal, transmitting an output signal to a second lighting unit, the output signal being based on the input signal and enabling an identification of the first lighting unit, the sensor or the user interface, receiving the transmitted output signal from the first lighting unit by the second lighting unit, establishing an identification, based upon the received output signal, of the first lighting unit, the sensor or the user—interface, and determining a further control signal for controlling an LED driver and/or LED assembly of the second lighting unit based on the output signal and the identification.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 16, 2018
    Assignee: ELDOLAB HOLDING B.V.
    Inventors: Marc Saes, Hubert Johan Marie Robert Van Doorne
  • Patent number: 9870082
    Abstract: The present disclosure provides a pixel driver circuit, a pixel driving method, a pixel circuit and a display device. The pixel driver circuit includes a touch element connection unit connected between a touch element and a second end of a storage capacitor, a diving control unit connected between a gate electrode of a driving transistor and the second end of the storage capacitor, a first power voltage application unit connected between a second electrode of the driving transistor and a first power line, a touch detection unit connected between a touch detection line and a first electrode of the driving transistor, and a threshold compensation control unit configured to receive a reference voltage and connected to the gate electrode of the driving transistor and the second end of the storage capacitor.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: January 16, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zuquan Hu
  • Patent number: 9851746
    Abstract: A touch panel is provided. The touch panel includes a first substrate and a luminous flux adjusting portion. The first substrate has a top surface, in which the top surface has at least one semi-transparent area. The luminous flux adjusting portion is disposed on the first substrate and located in the at least one semi-transparent area, in which the luminous flux adjusting portion has a continuous light-impermissible pattern. Embodiments of the present invention uses the luminous flux adjusting portion to control the luminous flux of the semi-transparent area for achieving good consistence and adjustability of the luminous flux of the semi-transparent area.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: December 26, 2017
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Li Huang, Tsung-Ke Chiu, Huilin Ye, Jing Yu
  • Patent number: 9842530
    Abstract: The white balance of a display device such as an LCD TV is automatically adjusted based on the color temperature of ambient light.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 12, 2017
    Assignee: Sony Corporation
    Inventors: Gregory Carlsson, Steven Richman, Frederick Zustak
  • Patent number: 9830867
    Abstract: A display device includes an image display panel whose display is controlled by an image signal, a backlight which includes light sources and lights the image display panel from behind, and a display control section which calculates, based on the image signal, the required luminance value of the backlight for each divided area of the image display panel, calculates a tentative lighting level of each light source based on luminance distribution information for the backlight stored previously and the required luminance values, sets the lighting level of a first light source whose tentative lighting level exceeds an upper limit to the upper limit, determines the lighting level of a second light source whose tentative lighting level does not exceed the upper limit, based on the lighting level of the first light source, luminance distribution information, and required luminance value, and controls the backlight by the lighting levels.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Naoyuki Takasaki, Tsutomu Harada, Susumu Kimura
  • Patent number: 9830489
    Abstract: Embodiments of the present disclosure provide code readers for reading codes provided as patterns imprinted on objects. Light interacts with a pattern by e.g. being reflected from or transmitted through the pattern, and at least some of the light that has interacted with the pattern is incident on photosensitive element(s) of one or more photodetectors of a code reader. The code reader employs centroid-measuring photodetector(s), i.e. photodetectors that detect light in such a manner that centroid of a pattern can be obtained directly from the photocurrents generated as a result of the photosensitive elements detecting light incident thereon. The code reader is then configured to process the detected light to determine a centroid of the pattern from the detected light and to decode data encoded in the pattern based on a position of the centroid. Such code readers are substantially less complex than camera-based devices and avoid mechanical scanning.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 28, 2017
    Assignee: ANALOG DEVICES, INC.
    Inventors: Shrenik Deliwala, Alain Valentin Guery
  • Patent number: 9826605
    Abstract: A system and method of controlling lighting schedules in a lighting control application on a computer system is disclosed. A graphical user interface is displayed to a user on a display in signal-communication with the computer system. The graphical user interface has a plurality of lighting control schedule areas. Each lighting control schedule area has an in-schedule portion and a corresponding out-of-schedule portion. One or more interface objects, corresponding to one or more lighting control devices, are associated with the in-schedule lighting control schedule of a first lighting control schedule area of the plurality of lighting control schedule areas without instructing the corresponding one or more lighting control devices to operate on said in-schedule lighting control schedule, in response to a user moving the one or more interface objects to the out-of-schedule portion of the first lighting control schedule area.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: November 21, 2017
    Inventor: Sanjaykumar J. Vora
  • Patent number: 9816173
    Abstract: A material suitable for a semiconductor included in a transistor, a diode, or the like is provided. The material is an oxide material including In, M1, M2 and Zn, in which M1 is an element in the group 13 of the periodic table, a typical example thereof is Ga, and M2 is an element whose content is less than the content of M1. Examples of M2 are Ti, Zr, Hf, Ge, Sn, and the like. To contain M2 leads to suppression of generation of oxygen vacancies in the oxide material. A transistor which includes as few oxygen vacancies as possible can be achieved, whereby reliability of a semiconductor device can be increased.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 14, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masahiro Takahashi, Motoki Nakashima, Takashi Shimazu
  • Patent number: 9799256
    Abstract: An image processing device includes a light detection unit and an image conversion unit. The light detection unit is configured to detect a first grayscale value of a background image. The background image is an image seen by a user through an at least partially transparent display panel. The image conversion unit is configured to generate a correction image having a second grayscale value obtained by subtracting a third grayscale value pertaining to the first grayscale value from a fourth grayscale value of an input image inputted to the at least partially transparent display panel. The input image is an image intended to be displayed on the at least partially transparent display panel.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Masahiko Yoshiyama, Hiroshi Ohishi, Takashi Yasuoka
  • Patent number: 9772702
    Abstract: A display device has a pixel array including a plurality of pixels arranged in a matrix and a backlight provided to face a substrate over which the pixel array is formed, and display element portions photosensor portions are formed in the pixels. In the display device, in one frame period for displaying a black image which is interposed between two successive periods forming an image or a backlighting shutoff period in one frame period in which the display element portion holds an image, an accumulation operation of the photosensor portion is performed, the pixels are successively selected for each row, and a signal corresponding to the potential of a signal charge accumulation portion of the photosensor portion is output.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 26, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda
  • Patent number: 9767764
    Abstract: A method for determining the screen brightness in the electronic device includes determining whether a flip cover opens or closes a screen when the screen display event occurs, determining a first brightness value for a full screen display mode when the flip cover is opened, and determining a second brightens value for a flip covered window display. Other embodiments including an apparatus for determining the screen brightness are also disclosed.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: September 19, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hak Choy, C. H. Lee, Seong-Joon Jeon
  • Patent number: 9754540
    Abstract: A display system including a display device and an image processing device is provided. The display device includes a second display panel overlapping with a first display panel on the display surface side. The second display panel has a region that transmits visible light adjacent to a display region. The region that transmits visible light of the second display panel overlaps with a display region of the first display panel, which makes a non-display region between display regions of two display panels in the display device small. The image processing device has a function of correcting the gray scale, which is included in image data, corresponding to at least one of a portion overlapping with the region that transmits visible light and a portion not overlapping with the region in the display region of the first display panel.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 5, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Norifumi Takesue, Yuichi Yanagisawa
  • Patent number: 9754539
    Abstract: Methods and an apparatus for setting brightness of a display screen of an electronic device based on ambient light brightness.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 5, 2017
    Assignee: Xiaomi Inc.
    Inventors: Guosheng Li, Anyu Liu, Shanrong Liu
  • Patent number: 9753283
    Abstract: A head-up display device includes a projector, an expansion optical system, an estimating part, a determination part, and a light amount control part. The projector has a light source and a liquid crystal panel. The expansion optical system expands an imagery output from the projector. The estimating part estimates a relative position of the sun with respect to a mobile unit. The determination part determines whether the liquid crystal panel is protected based on a relation between the relative position estimated by the estimating part and a solid angle representing a range in which a light from the sun is incident to the liquid crystal panel through the expansion optical system. The light amount control part decreases an amount of light incident to the liquid crystal panel when the determination part determines that the liquid crystal panel should be protected.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 5, 2017
    Assignee: DENSO CORPORATION
    Inventor: Takahiro Nambara
  • Patent number: 9741290
    Abstract: Methods and apparatuses are provided for a multi-mode display. In one embodiment, a multi-mode display comprises an array of light sensing and emitting units (LSEUs), a decoder configured to generate addresses for accessing one or more LSEUs in the array of LSEUs, and a controller configured to control the array of LSEUs using the addresses, where each LSEU in the array of LSEUs comprises a light sensing and emitting component (LSEC), an emitting circuit configured to generate light using the LSEC, and a sensing circuit configured to detect light using the LSEC.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 22, 2017
    Assignee: SecuGen Corporation
    Inventors: Dong Won Lee, Jae Hyeong Kim, Jae Ho Kim, Ye Seon Lee
  • Patent number: 9723690
    Abstract: The present disclosure discloses a method and a device for adjusting indoor brightness and a smart home control system. The method includes: detecting a display device to obtain brightness of the display device; generating indoor brightness based on the brightness of the display device; and adjusting brightness of an indoor lighting device based on the indoor brightness.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: August 1, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hong Wang, Zhenpeng Guo, Xingxing Zhao
  • Patent number: 9715848
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Patent number: 9715851
    Abstract: The present disclosure discloses a display panel, a method of manufacturing the display panel, a flexible display device and a method of controlling the flexible display device. The display panel according to the present disclosure includes display units and sensing units configured to detect brightness of the display units, and the display units and the sensing units are simultaneously formed on different regions of a same base substrate.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: July 25, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Song Song, Kazuyoshi Nagayama
  • Patent number: 9671555
    Abstract: A display device includes a display screen and a frame disposed around the display device, an infrared receiver and a light guide member, wherein the light guide member has a securing surface through which the light guide member is secured to the frame, the light guide member further including a receiving end and a light exiting surface, the receiving end formed at a display side of the display device, a width of the receiving end in a direction perpendicular to the frame to which the light guide member is secured is narrower than a width of the light exiting surface in the direction. Only a narrower portion of the light guide member can be seen when a human being looks at the display device, thus improving display effect of the narrow frame of the display device.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 6, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    Inventors: Jianmin He, Qin Chen, Enmin Niu
  • Patent number: 9655205
    Abstract: Methods and systems according to embodiments of the invention calculate ambient light in a space, where the method includes obtaining an image of the space from an array of pixels, defining a plurality of pixel groups in the image, calculating a representative pixel value for each of the pixel groups, and calculating ambient light in the space based on the pixels in the image, disregarding pixels from the pixel groups having the highest and lowest representative pixel values.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 16, 2017
    Assignee: POINTGRAB LTD.
    Inventor: David Bitton
  • Patent number: 9646544
    Abstract: Embodiments of a backlight module for illuminating a liquid crystal display (LCD) and sensing ambient light are provided herein. The backlight module includes a light-emitting diode (LED) array and a backlight controller. The backlight controller is configured to forward bias the LED array to backlight the LCD and reverse bias the LED array to sense the ambient light level. The backlight controller is configured to adjust the brightness of the LED array based on the current ambient lighting conditions sensed.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: May 9, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventor: Walter Soto
  • Patent number: 9621692
    Abstract: A display apparatus includes a bezel in which a size of the bezel is reduced. The display apparatus includes a display panel in which both edges of the display panel are bent. A back supporting unit is disposed on the back of the display panel. The back supporting unit supports the center of the display panel. A side supporting unit is disposed on sides of the display panel. Both edges of the display panel are disposed between the back supporting unit and the side supporting unit. The display panel includes a display area and a peripheral area surrounding the display area. A portion of the display area is disposed between the back supporting unit and the side supporting unit.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 11, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Sang-Wol Lee
  • Patent number: 9613563
    Abstract: A display apparatus includes: a display panel configured to display an image frame; an arithmetic operator configured to divide the image frame into blocks, calculate a pixel gradation value of the pixel blocks, and accumulate the calculated pixel gradation values; and a compensator configured to locally reduce a luminance of a corresponding pixel block, of which a respective accumulated pixel gradation value exceeds a threshold value of among the plurality of pixel blocks, and to compensate for a luminance difference between the corresponding pixel block, for which the luminance has been reduced, and surrounding pixel blocks. Accordingly, it is possible to effectively remove an afterimage.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: April 4, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwa-seok Seong, Sung-Soo Kim
  • Patent number: 9608727
    Abstract: In a transmitting method that enables communication between various devices including devices other than lightings, a luminance change pattern is determined by modulating a visible light signal, a common switch for turning ON, in common, a plurality of light sources which are included in a light source group of a display and are each used for representing a pixel in an image is switched according to the luminance change pattern, and a first pixel switch for turning ON a first light source among the plurality of light sources included in the light source group is turned ON, to cause the first light source to be ON only for a period in which the common switch is ON and the first pixel switch is ON, to transmit the visible light signal.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: March 28, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Hideki Aoyama, Mitsuaki Oshima, Koji Nakanishi, Toshiyuki Maeda, Akihiro Ueki, Kengo Miyoshi, Tsutomu Mukai
  • Patent number: 9607571
    Abstract: An information processing method and an electronic device, the method comprising: acquiring a first value of a first parameter by the first sensor; acquiring a second value of the first parameter by the second sensor; judging whether a difference value between the first value and the second value is larger than or equal to a first threshold or not; determining a third value based on a first algorithm, the first value and the second value, and reporting the third value as a value of the first parameter to the processing unit, when the difference value is larger than or equal to the first threshold; determining a fourth value based on a second algorithm, the first value and the second value, and reporting the fourth value as the value of the first parameter to the processing unit, when the difference value is smaller than the first threshold.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 28, 2017
    Assignees: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) CO., LTD.
    Inventors: Tao Sun, Zhenhua Zhang, Wenjun Gao, Ke Shang, Guang Yang
  • Patent number: 9576538
    Abstract: A display apparatus includes: a panel including a plurality of pixels configured to display an image; an ambient light sensor configured to sense an illumination level of ambient light and to generate ambient light data; a gamma controller configured to control sections of a reference gamma curve based on the ambient light data to generate a controlled gamma curve, the controlled gamma curve defining output data according to input data; a data driver configured to convert an image signal into a data voltage based on the controlled gamma curve and to supply the data voltage to the pixels; and a gate driver configured to supply a gate signal to the pixels.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: February 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Ki Baek, Jung-Taek Kim, Yong-Jun Jang, Nam-Gon Choi, Joon-Chul Goh, Ah-Reum Kim
  • Patent number: 9564100
    Abstract: An information processing method and an electronic device, the method comprising: acquiring a first value of a first parameter by the first sensor; acquiring a second value of the first parameter by the second sensor; judging whether a difference value between the first value and the second value is larger than or equal to a first threshold or not; determining a third value based on a first algorithm, the first value and the second value, and reporting the third value as a value of the first parameter to the processing unit, when the difference value is larger than or equal to the first threshold; determining a fourth value based on a second algorithm, the first value and the second value, and reporting the fourth value as the value of the first parameter to the processing unit, when the difference value is smaller than the first threshold.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: February 7, 2017
    Assignees: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) CO., LTD.
    Inventors: Tao Sun, Zhenhua Zhang, Wenjun Gao, Ke Shang, Guang Yang
  • Patent number: 9563258
    Abstract: A switching method and an electronic device solve the technical problem of an inflexible switching way of an electronic device. The method includes capturing a first sensing parameter by a first sensing unit, and capturing a second sensing parameter by a second sensing unit, when the electronic device is in a first work state; judging whether the first sensing parameter meets a first preset condition and the second sensing parameter meets a second preset condition, or not; generating a first switching instruction for controlling the electronic device to switch from the first work state to a second work state, when the first sensing parameter meets the first preset condition and the second sensing parameter meets the second preset condition; and controlling the electronic device to switch from the first work state to the second work state, according to the first switching instruction.
    Type: Grant
    Filed: December 27, 2014
    Date of Patent: February 7, 2017
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventor: Zhiyu Wei
  • Patent number: 9558562
    Abstract: An information handling system includes a display for displaying an image and a processor. The processor is configured to receive an input image, determine if a pixel is in an edge region, generate an anti-reflective image by applying an edge preserving blue noise pattern to pixels within the edge region, and applying a mean persevering blue noise pattern to pixels outside of the edge region. The anti-reflective image is provided to the display. When displayed, the anti-reflective image reduces artifacts caused by reflection or glare on the display.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 31, 2017
    Assignee: DELL PRODUCTS, LP
    Inventors: Stefan Peana, James Sullivan
  • Patent number: 9557475
    Abstract: A display device includes: a first substrate; a pixel defining layer on the first substrate, the pixel defining layer being configured to define a pixel area; a pixel electrode in the pixel area; a light emission layer on the pixel electrode; a common electrode on the light emission layer; a second substrate facing the first substrate; an edge black matrix on one surface of the second substrate, the edge black matrix being configured to define a non-display area; a reflective layer on the edge black matrix; a light guide part on one surface of the first substrate; and a light sensor unit configured to receive light emitted from the light guide part.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 31, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Gyu Kim
  • Patent number: 9552754
    Abstract: A display method and a display device for optimizing screen brightness of a mobile terminal are provided. The display method includes: determining an external illuminance value based on a sensor signal by detecting by the sensor signal for determining a brightness value of a screen; determining the brightness value of the screen corresponding to the external illuminance value; and outputting an image signal by using the brightness value of the screen.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: January 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Seok Min, Yong Kim, Eun-Hyun Kim, Jong-Man Kim, Jong-Ho Kim, Se-Hyeok Park, Jeong-Hoon Park, Hyun-Hee Park, Min-Woo Lee, Ji-Young Yi
  • Patent number: 9542907
    Abstract: Adjustments to content to be rendered on top of background content, such as wallpaper, in a graphical user interface are disclosed. One example method can include adjusting a color characteristic of new content to be rendered on top of the background content, based on at least one color characteristic of the background content, so as to preserve the new content's color. Another example method can include adjusting a color characteristic of text to be rendered on top of the background content, based on at least one color characteristic of the background content, so that the text is legible.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 10, 2017
    Assignee: APPLE INC.
    Inventors: Ken Kocienda, Chanaka G. Karunamuni, Joshua H. Shaffer, Imran Chaudhri
  • Patent number: 9536935
    Abstract: A novel light-emitting device includes an organic thin-film structure that is merged with an organic light-emitting diode structure by utilizing a part of the electron accumulation layer in the organic thin-film transistor as a common electrode for each structure. The organic thin-film structure and the organic light-emitting diode structure each include an organic semiconductor that comprises a material in which hole mobility is greater in a bulk region of the material than electron mobility in the bulk region. The advantages of such a light-emitting device include less complex processing and a simpler pixel circuit structure in comparison to separately fabricating OTFT and OLED structures and subsequently interconnecting them to form a pixel. Furthermore, relative to a light-emitting transistor, some embodiments offer the advantage of a broader light emission area more suitable for use in display devices.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 3, 2017
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY KANPUR
    Inventors: Baquer Mazhari, Ankita Gangwar
  • Patent number: 9531930
    Abstract: A surveillance device includes a shell, a sensing assembly and a transparent cover. The transparent cover is detachably disposed on the shell, to form an accommodating space together. The sensing assembly is disposed in the accommodating space. The transparent cover comprises a first light-transmitting cover, an annular light baffle and a second light-transmitting cover. The first light-transmitting cover is disposed on the shell and having a through hole. The annular light baffle disposed at the through hole has a first limiting surface and a second limiting surface. The first light-transmitting cover is pressed against the first limiting surface. The second limiting surface faces oppositely away from the accommodating space. The second light-transmitting cover is disposed on the annular light baffle and pressed against the second limiting surface. The first limiting surface and the second limiting surface prevent the second light-transmitting cover from moving toward the accommodating space.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: December 27, 2016
    Assignee: VIVOTEK INC.
    Inventor: Chih-Chieh Chan
  • Patent number: 9530362
    Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may operate the display in different modes. In a paper mode, display control circuitry may use stored spectral reflectance data to adjust display colors such that the colors appear as they would on a printed sheet of paper. In a low light mode when the ambient light level is below a threshold, the light emitted from the display may be adjusted to mimic the appearance of an incandescent light source. In a bright light mode when the ambient light level exceeds a threshold, the light emitted from the display may be adjusted to maximize readability in bright light. The target white point of the display may be adjusted based on which mode the display is operating in.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: December 27, 2016
    Assignee: Apple Inc.
    Inventors: Cheng Chen, Jiaying Wu, Will Riedel, Wei Chen, John Z. Zhong
  • Patent number: 9520384
    Abstract: A light-emitting device, having an overall color temperature when emitting light, includes a carrier, a first LED unit, and a second LED unit. The carrier has a circuit. The first LED unit is arranged on the carrier and has a first color temperature. The second LED unit is spaced apart from the first LED unit by a space, and electrically connected to first LED unit and the circuit. The first LED unit and the second LED unit, and each includes a light-emitting body and a wavelength conversion layer covering the light-emitting body. The first color temperature is different from the overall color temperature.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 13, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chien-Liang Liu, Ming-Chi Hsu
  • Patent number: 9514706
    Abstract: A transparent display apparatus and an image adjustment method thereof are provided. The image adjustment method includes following steps. A background image information is obtained according to a background scenery at a first side of the transparent display panel. At least one of a plurality of color attributes of a display image is adjusted according to the background image information. The adjusted display image is output at a second side of the transparent display panel.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 6, 2016
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Pei-Lin Hsieh, Hsiang-Tan Lin
  • Patent number: 9508289
    Abstract: A display device includes pixel circuits with light emitting devices coupled to a first voltage and a second voltage; a signal controller configured to: generate output image data by gamma converting and by decreasing input image data of a frame according to a gamma curve; and generate a control signal to display an image on the panel according to the generated output image data; a voltage difference setting unit configured to detect a maximum value in the output image data, and configured to calculate a difference value between the first voltage and the second voltage so that a driving current corresponding to the maximum value is generated; and a power supply unit configured to generate and apply the first and second voltages to the panel, the generated first and second voltages corresponding to the calculated difference value, wherein the gamma curve comprises one or more inflection points.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 29, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Young Min Bae
  • Patent number: 9501841
    Abstract: Embodiments of the present invention provide a method for color calibration and a user terminal, which relate to the field of terminal display and are capable of compensating the colors of the displayed content on a screen according to the external light intensity, preventing content color distortion, and improving user experience. The embodiments of the present invention are used by a mobile terminal to calibrate screen colors according to external light.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: November 22, 2016
    Assignee: Huawei Device Co., Ltd.
    Inventor: Hong Yang
  • Patent number: 9504128
    Abstract: An image display device including: a light-emitting unit; a display panel including color filters of a plurality of colors and pixels corresponding to the respective color filters; a sensor which detects light from the light-emitting unit and light incident from outside; an acquisition unit configured to acquire, in a state where the display panel is controlled so that, relative to transmittance of pixels of one color among the plurality of colors, transmittance of pixels of colors other than the one color becomes smaller, a detection value that is output from the sensor; and a determination unit configured to determine an irradiation condition of external light based on the detection value of each color of the plurality of colors acquired by the acquisition unit.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 22, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masanao Kurita
  • Patent number: 9488521
    Abstract: In a method of operating an optical sensor circuit (11) in accordance with one embodiment of the present invention, main reset is performed prior to sensing of incident light with use of a PIN diode (4) and, between the main reset and next main reset, auxiliary reset is performed so that a potential of a cathode terminal of the PIN diode (4) is reduced within a predetermined range within which storage of carriers is not induced in an intrinsic region of the PIN diode (4).
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 8, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiro Maeda, Hiroaki Sugiyama, Yousuke Nakagawa, Yasuhiro Sugita
  • Patent number: 9482797
    Abstract: A pixel array is provided. The pixel array comprises a plurality of two-dimensionally arranged 4*4 Bayer matrix units, in which the matrix unit comprises a plurality of pixels, any of a green filter, a red filter and a blue filter is disposed in one pixel, and one or more of the green filters are replaced by white color filters in the matrix units. A camera using the same and a color processing method based on the pixel array are also provided.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: November 1, 2016
    Assignees: BYD Company Limited, Shenzhen BYD Auto R&D Company Limited
    Inventors: Mao Peng, Jingjun Fu, Wenge Hu
  • Patent number: 9478166
    Abstract: A driving method for dimming an organic light-emitting diode (OLED) display is disclosed. In one aspect, the method includes selecting a dimming mode indicating a maximum luminance to be displayed by the OLED display based on an input and determining a luminance range from a plurality of luminance ranges. The determined luminance range comprises the maximum luminance of the dimming mode. The method also includes performing at least one of converting image data based at least in part on the dimming mode or controlling a duty ratio of an emission control signal, wherein the performing is based at least in part on the determined luminance range.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 25, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si-Baek Pyo, Young-Seob Kim
  • Patent number: 9471167
    Abstract: An OLED touch display panel includes a pixel layer having red subpixels, green subpixels, and blue subpixels. The red subpixels, the green subpixels, and the blue subpixels are arranged in a repeated manner. An encapsulation glass is mounted on the pixel layer. A touch sensor pattern layer is formed on the encapsulation glass and is aligned with gaps between the red subpixels, the green subpixels, and the blue subpixels. In another aspect, an OLED touch display panel includes a pixel layer having subpixels of different colors. An encapsulation glass is mounted on the pixel layer in a first direction. A polarizer is mounted on the encapsulation glass in the first direction. A touch sensor pattern layer is mounted between the encapsulation glass and the polarizer. At least a portion of spacing sections between the subpixels overlaps a pattern of the touch sensor pattern layer in the first direction.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: October 18, 2016
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventors: PingHsu Lai, HsiaoYi Lin
  • Patent number: 9466653
    Abstract: An electronic device is provided, with a display and a display-integrated light sensor. The display includes a transparent cover layer, light-generating layers, and a touch-sensitive layer. The display-integrated light sensor is interposed between the transparent cover layer and a display layer such as the touch-sensitive layer or a thin-film transistor layer of the light-generating layers. The light-generating layers include a layer of organic light-emitting material. The display-integrated light sensor can be implemented as an ambient light sensor or a proximity sensor. The display-integrated light sensor may be a packaged light sensor that is integrated into the display layers of the display or may be formed from light-sensor components formed directly on a display circuitry layer such as the touch-sensitive layer or the thin-film transistor layer.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 11, 2016
    Assignee: Apple Inc.
    Inventors: Erik G. de Jong, Anna-Katrina Shedletsky, Prashanth S. Holenarsipur
  • Patent number: 9430964
    Abstract: Disclosed is an organic light emitting display device and a method for driving the same to prevent luminance variations caused by degradation variations, and to prevent picture quality from being deteriorated by residual images caused by the luminance variations. The device includes a display panel having a plurality of sub-pixels, each sub-pixel having an organic light emitting diode; a memory which stores accumulated data of each sub-pixel therein; and a panel driver which accumulates input data of each sub-pixel every accumulation period, stores the accumulated data in the memory, generates a degradation compensation gain value of each sub-pixel, generates modulated data of each sub-pixel by modulating the input data of each sub-pixel in accordance with the degradation compensation gain value of each sub-pixel, converts the modulated data into the data voltage, and supplies the data voltage to each sub-pixel.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: August 30, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Ui taek Jeong, Dae hyeon Park
  • Patent number: 9412165
    Abstract: A NB-cam module calibration method is provided. The method includes the following steps: an image which the optical lens of each NB-cam module spotlights onto a light sensor of each NB-cam module is calibrated to generate a compensation parameter set corresponding to each NB-cam module; a color temperature table within the compiled lens-driver firmware is modified according to each compensation parameter set; and the compiled and modified lens-driver firmware is directly burned to each NB-cam module.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: August 9, 2016
    Assignee: BISON ELECTRONICS INC.
    Inventors: Mung-Shiue Lai, Jung-Hui Hung, Yun-Ju Li