Patents Examined by Kwang-Su Yang
  • Patent number: 11030930
    Abstract: A display device may comprise a substrate which includes a display area including a first pixel and a non-display area including a second pixel, a first data line which is disposed on the substrate and applies a data signal to the first pixel, a second data line which is disposed on the substrate and applies a data signal to the second pixel and a gate line which is disposed on the substrate and applies gate signals to the first pixel and the second pixel at the same timing, wherein the first pixel and the second pixel have different area from each other.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 8, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HyungBeom Shin, JaeHyung Jo
  • Patent number: 11023087
    Abstract: A display apparatus includes: a display; a bezel extended along at least a partial edge of the display and configured to cover the edge of the display; at least one signal transceiver configured to transmit a detection signal to the bezel and receive a reflection signal of the transmitted detection signal; and a controller configured to determine a touch position of a user on the bezel based on time taken from a point of time where the at least one signal transceiver transmits the detection signal to a point of time where the at least one signal transceiver receives the reflection signal.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-june Yoo, Nam-su Ha, Eun-seo Kim, Byung-seok Soh, Min-sup Kim, Hyun-kyu Yun
  • Patent number: 11024240
    Abstract: Effective image correction processing for reducing flicker is executed according to characteristics of images, and an image to be displayed in a liquid crystal display apparatus is generated. Characteristic amount change rate data that is a change rate between a characteristic amount of a sample image and a characteristic amount of a sample image output to a liquid crystal display device is acquired in advance and stored in a storage unit. The correction parameter for reducing flicker is calculated on the basis of the characteristic amount of the image to be corrected and the characteristic amount change rate data of the sample images stored in the storage unit. The correction processing to which the calculated correction parameter has been applied is executed for the image to be corrected to generate a display image. As the characteristic amount, for example, the interframe luminance change amount, the interline luminance conversion amount, or the interframe motion vector is used.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: June 1, 2021
    Assignee: SONY CORPORATION
    Inventors: Yiwen Zhu, Kazunori Kamio, Takahiro Nagano
  • Patent number: 11023079
    Abstract: The embodiments of the present disclosure provide an infrared touch device, a touch detection method and a touch display device. An infrared touch device, comprising: an infrared emitter configured to emit infrared light; and a touch sensor configured to receive the infrared light, wherein the touch sensor changes an infrared light transmittance at a touch position when touched, and determines the touch position according to transmitted infrared light.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 1, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Huan Ni, Yuan Li
  • Patent number: 11016587
    Abstract: In an embodiment, a system implements detent operation using tactile and audio effects that give the user the effect of a detent without including the mechanical devices that detents would normally imply. The detent operation may be implemented in software and may be synchronized to events on the display of the system (e.g. animation events), which may provide a convincing user experience. A low latency path from the applications and user interface program of the system to the hardware that implements the detent operation may be provided to help ensure that the synchronization of animation events and detent operations is maintained.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: May 25, 2021
    Assignee: Apple Inc.
    Inventors: Hernan R. Eguiluz, Michael J. Lamb, Kevin Tyler McAtee, Dylan R. Edwards
  • Patent number: 11011103
    Abstract: A pixel circuit includes a first driving circuit, a light-emitting element, a second driving circuit, an energy storage circuit and an input circuit. A first end of the first driving circuit is connected to a power source voltage input end. An anode of the light-emitting element is connected to a second end of the first driving circuit. A first end of the second driving circuit is connected to a first level signal input end, a second end thereof is connected to a cathode of the light-emitting element. The energy storage circuit is connected to control ends of the first driving circuit and the second driving circuit, a second level signal input end. The input circuit is connected to a data signal input end, an input control end, the control end of the first driving circuit and the control end of the second driving circuit.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: May 18, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Han Yue, Ming Yang, Can Wang, Can Zhang, Minghua Xuan, Xiaochuan Chen
  • Patent number: 10996791
    Abstract: A touch display device, a data driving circuit, and a driving method are provided. The touch display device, the data driving circuit, and the driving method convert an image digital signal into an image analog signal in response to a gamma reference voltage which is applied to the touch electrodes arranged in the display panel and which is modulated in synchronization with a first touch electrode driving signal swinging with a first amplitude and output a data signal corresponding to the converted image analog signal to the data lines. Accordingly, it is possible to effectively simultaneously perform display and touch sensing.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: May 4, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: HoonBae Kim, CheolSe Kim, SungChul Kim, SunYeop Kim, Seongkyu Kang
  • Patent number: 10991327
    Abstract: A pixel arrangement structure includes a plurality of pixel repeating units arranged in a matrix in a row direction and a column direction. Each of the plurality of pixel repeating units includes a first pixel unit and a second pixel unit sequentially arranged in the column direction. The first pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel which are sequentially arranged in the row direction. The second pixel unit includes a third sub-pixel, a fourth sub-pixel, a first sub-pixel, and a second sub-pixel which are sequentially arranged in the row direction. Each column of sub-pixels is divided into a first subset of sub-pixels connected to a first data line and a second subset of sub-pixels connected to a second data line.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: April 27, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Mingchao Ma
  • Patent number: 10983640
    Abstract: A position detection circuit is connected to a capacitive touch sensor that includes a plurality of line electrodes arranged in a two-dimensional lattice pattern. The position detection circuit includes: at least one processor device; and at least one memory device storing processor-executable instructions which, when executed by the processor device, cause the position detection circuit to: acquire capacitance-related detection values at crossing points of the line electrodes in association with positions of the crossing points; calculate a number of crossing points at which a detection value is smaller than a first threshold for each of the line electrodes; and determine that one or more of the line electrodes for which a calculated number of crossing points is greater than a second threshold are anomalous or possibly anomalous.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: April 20, 2021
    Assignee: Wacom Co., Ltd.
    Inventors: JuiMin Liu, Yuhi Hatano, Shigeyuki Sano
  • Patent number: 10976862
    Abstract: Exemplary embodiments of the present disclosure relate to a touch driving circuit that operates according to an internal clock signal and a touch controller that calibrates a variation in internal clock signal between touch driving circuits. The touch driving circuit operates using an internal clock signal, thus preventing electromagnetic interference caused by a clock signal line that connects the touch controller and a plurality of touch driving circuits. Further, the touch controller calibrates the output frequencies of internal clock signals of the respective touch driving circuits to be the same on the basis of the counting values of the internal clock signals of the touch driving circuits, which are obtained during a certain period before performing touch sensing, and performs touch sensing, thereby performing touch sensing while controlling the plurality of touch driving circuits operating with the internal clock signals without any operational variation.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: April 13, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Yongwoo Choi
  • Patent number: 10971057
    Abstract: A display apparatus is provided. The display apparatus according to an embodiment includes an LED module including a plurality of light emitting diodes, an LED driver including a switching element comprising switching circuitry, the LED driver being configured to change a switching frequency of the switching element based on an intensity of a current provided to the LED module, and a processor configured to generate a Pulse Width Modulation (PWM) dimming signal based on pixel information of an input image and provide the signal to the LED driver, wherein the processor is further configured to control the LED driver to increase the switching frequency of the switching element within a dimming duty of the PWM dimming signal by reducing the intensity of the current provide to the LED module based on a pixel value of the input image being less than a threshold value.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 6, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungbum Jung, Sungyong Joo
  • Patent number: 10949045
    Abstract: A flexible touch substrate and a touch device including the flexible touch substrate are provided. The flexible touch substrate includes a plurality of sides. Each of at least one of the plurality of sides has notches at its both ends. Each of the notches has two edges whose extension directions cross each other, and the two edges of each of the notches have a same length.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: March 16, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qingpu Wang, Dacheng Deng, Haitao Liu, Taofeng Xie
  • Patent number: 10937355
    Abstract: A display substrate, a display panel, and a display device. The display substrate includes a substrate, and a plurality of polygonal pixels arranged in an array on the substrate. Each polygonal pixel includes a plurality of sub-pixels and a photoelectric sensor. An orthographic projection of the plurality of sub-pixels on the substrate and an orthogonal projection of the photoelectric sensor on the substrate do not overlap with each other. The display substrate, the display panel and the display device of the embodiments of the present disclosure can maximize the collection of optical signals, thereby improving the efficiency of the photoelectric sensor and the accuracy of a fingerprint identification in certain applications.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: March 2, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongsheng Li, Jianming Sun, Huili Wu, Shipei Li, Qingrong Ren
  • Patent number: 10937371
    Abstract: A scan driver includes circuit stages each including a first input part to transfer a signal of a first node to a first output part having a second node in response to a first clock signal, a second input part to transfer a carry signal to the first node in response to a second clock signal that is different from the first clock signal, a holding part to maintain a signal of the second node, the first output part to transfer a third clock signal that is different from the first and second clock signals to an output terminal in response to the signal of the second node, a second output part to transfer the first clock signal to the output terminal in response to a signal of a third node, and a simultaneous driving part to turn off the second output part in response to the third clock signal.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo Yong Chung, Dongwoo Kim, Yeonkyung Kim, Chong Chul Chai
  • Patent number: 10928966
    Abstract: Disclosed herein are a touch panel and a touch-panel-integrated organic light-emitting display device that are capable of solving a retransmission problem while exhibiting excellent luminance and color viewing angle characteristics. The touch panel includes a plurality of first and second electrodes disposed on a substrate so as to intersect each other. Each first electrode includes a first touch electrode, the first touch electrode including a first metal mesh pattern having a lattice structure formed by a plurality of first and second line electrodes intersecting each other and a first floating unit disposed in the central part of the first metal mesh pattern, the first floating unit being electrically isolated from the first metal mesh pattern, the first floating unit being made of a transparent conductive material.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: February 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Yong-Chul Kim
  • Patent number: 10924111
    Abstract: An input device is disclosed, including a capacitive force sensor, a capacitive touch sensor, and an evaluation unit, where the capacitive force sensor includes an operating surface and a first conductive electrode, and a second conductive electrode; wherein the evaluation unit is configured to detect an associated characteristic value of a touch on the operating surface during the operation, such as a location surface of action of the touch, by means of the capacitive touch sensor, and wherein the evaluation unit is further configured to detect a measured quantity changing with the operating force by generating a first measuring capacitance between the first and second electrodes and to assign a switching or controlling function to the operation in accordance with the characteristic value detected by the capacitive touch sensor and with the measured quantity detected in the operation-detection step.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: February 16, 2021
    Inventors: Norbert Bauer, Thomas Kleffel, Jochen Schlereth, Florian Schmitt
  • Patent number: 10923527
    Abstract: A micro LED display panel includes a display area, a plurality of micro light-emitting elements and a plurality of micro control elements. The plurality of micro light-emitting elements is disposed in the display area and include a plurality of first color micro LEDs and a plurality of second color micro LEDs. A light wavelength of each of the first color micro LEDs is different from a light wavelength of each of the second color micro LEDs. The plurality of micro control elements is disposed in the display area, and include a plurality of first color micro circuit-chips and a plurality of second color micro circuit-chips. The plurality of first color micro circuit-chips control the plurality of first color micro LEDs, and the plurality of second color micro circuit-chips control the plurality of second color micro LEDs.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: February 16, 2021
    Assignee: PixeLED Display CO., LTD.
    Inventors: Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Ying-Tsang Liu, Yu-Chu Li, Tzu-Yang Lin, Yu-Hung Lai
  • Patent number: 10914952
    Abstract: A head mounted display (HMD) includes a first transparent light source, a first micro-lens array panel and a first transparent LCD panel. The first transparent light source emits a plurality of pin-lights along a first light projection path. The first micro-lens array panel having a plurality of micro-lens, and the micro-lens respectively receive the pin-lights and adjust characteristics of projection surfaces of the pin-lights to generate a plurality of adjusted lights. The first transparent LCD panel receives the adjusted lights and generates a first display image according to the adjusted lights.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 9, 2021
    Assignee: HTC Corporation
    Inventors: Fu-Cheng Fan, Chung-Jung Chen, Chun-Ta Lin
  • Patent number: 10896939
    Abstract: An organic light-emitting display device includes a plurality of pixels. Each of the pixels includes a first electrode, a second electrode, and an organic emission layer between the first electrode and the second electrode. The display device further includes a pixel-defining layer surrounding an outer portion of the first electrode and including a plurality of circular first openings, each of the circular first openings overlapping at least a portion of a respective pixel of the plurality of pixels. The display device additionally includes an encapsulation layer arranged on the second electrode, a black matrix arranged on the encapsulation layer and including a plurality of circular second openings, each of the circular second openings overlapping a respective circular first opening of the plurality of circular first openings, and a plurality of color filters, each of the color filters overlapping a respective circular second opening of the plurality of circular second openings.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Haseok Jeon, Dohyun Kwon, Choongyoul Im
  • Patent number: 10891011
    Abstract: A touch sensor includes a substrate layer, sensing electrodes on the substrate layer, and optical compensation patterns. The sensing electrodes include electrode lines therein which extend in different directions to cross each other. The sensing electrodes are defined by separation regions at which portions of the electrode lines are cut. The optical compensation patterns are disposed at a different level or a different plane from that of the sensing electrodes. The optical compensation pattern at least partially fills the separation regions in a planar view. Optical properties of the touch sensor are improved by the optical compensation pattern, and visibility of electrodes is prevented.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: January 12, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Sang Jin Park, Do Hyoung Kwon, Sung Jin Noh, Han Tae Ryu, Jun Gu Lee