Patents Examined by Nan-Ying Yang
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Patent number: 10930236Abstract: Stages of a gate driver may each receive a clock signal, an inverted clock signal, a previous carry signal and a subsequent carry signal, and may each include an output part, a node controlling part and a holding part. In a mode transition period, clock signal and the inverted clock signal may both be temporarily applied with on voltages. The holding parts of the stages receive the clock signal and the inverted clock signal each having the on voltage, and in response, discharge the control nodes, the gate output nodes and the carry output nodes, thereby preventing faulty operation.Type: GrantFiled: May 8, 2019Date of Patent: February 23, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-Hun Lee, Jahun Koo, Ho Lee
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Patent number: 10923011Abstract: The disclosure provides a bistable display device and a driving circuit. The bistable display device includes a display panel and the above-described driving circuit, wherein the driving circuit includes a source driver, a first image buffer, a second image buffer, and a timing controller. The source driver is coupled to the display panel to drive the display panel according to a pixel signal. The timing controller is coupled to the first image buffer, the second image buffer, and the source driver. The timing controller alternately selects a first image signal temporarily stored in the first image buffer and a second image signal temporarily stored in the second image buffer as a current image signal and a previous image signal. The timing controller performs a look-up mechanism based on the current image signal and the previous image signal to generate the pixel signal.Type: GrantFiled: October 23, 2019Date of Patent: February 16, 2021Assignee: ITE Tech. Inc.Inventors: Tzu-Yi Wu, Ming-Hsun Sung
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Patent number: 10916181Abstract: A display device comprising an active area and a surrounding area is provided. The active area includes a common electrode for receiving a common voltage. The surrounding area is located at a side of the active area, and the surrounding area includes a shielding metal layer and a surrounding circuit. The shielding metal layer is electrically isolated from the common electrode and receives a shielding voltage. The surrounding circuit and a first shielding metal are overlapped in a vertical projection direction, and the common voltage is power-isolated from the shielding voltage.Type: GrantFiled: December 2, 2019Date of Patent: February 9, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Rong-Fu Lin, Kai-Wei Hong, Jie-Chuan Huang, Peng-Bo Xi, Sung-Yu Su
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Patent number: 10916207Abstract: A dynamic image split method for a dual cell LCD that includes a back cell and a front cell is proposed to obtain a smoother back-cell image. Multiple desired effective transmittances that correspond to a group of front-cell pixels are taken into consideration in determining a transmittance for a back-cell pixel. The front-cell pixels in the group are related in position to the back-cell, and cooperatively form an area that is larger than and overlaps an area of the back-cell pixel.Type: GrantFiled: October 25, 2019Date of Patent: February 9, 2021Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Hong-Chun Cong, Jian-Hua Liang, Xiao Zhang
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Patent number: 10908642Abstract: A movement-based data input device is configured to receive at least one reflected signal generated upon reflection of at least one optical signal by blood vessels of an object. The data input device may generate pattern information regarding the blood vessels of the object based on the received reflected optical signal. The data input device may determine a user input motion based on the pattern information.Type: GrantFiled: October 14, 2019Date of Patent: February 2, 2021Assignee: MotionVirtual, Inc.Inventor: JunHo Park
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Patent number: 10902931Abstract: The present disclosure provides a shift register unit and a method for driving the same, a gate driving circuit, and a display apparatus. The shift register unit includes: a first input sub-circuit configured to transmit a signal at a first signal input terminal to a pull-up node under control of the first signal input terminal; a second input sub-circuit configured to transmit the signal at the first signal input terminal to the pull-up node under control of a second signal input terminal; a first output sub-circuit configured to transmit a signal at a first clock signal terminal to a first signal output terminal under control of the pull-up node; and a second output sub-circuit configured to transmit a signal at a second clock signal terminal to a second signal output terminal under control of the pull-up node.Type: GrantFiled: August 30, 2019Date of Patent: January 26, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Mingfu Han
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Patent number: 10902770Abstract: To enable manufacturing of a display device with a low defect rate and high yield, an integrated circuit chip includes a drive circuit that drives a light emitting unit, and the drive circuit includes a P-side electrode connected to an anode of the light emitting unit and a nonvolatile memory transistor that controls current supply to the P-side electrode.Type: GrantFiled: December 5, 2017Date of Patent: January 26, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Katsuji Iguchi, Tsuyoshi Ono
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Patent number: 10878750Abstract: A method for reducing power consumption of a source driver included in a display device and suppressing heat generation is provided. In a display device in which each pixel is supplied with a data signal of image data through a source line, a source driver is included, each source line is electrically connected to the source driver, and the source driver has a function of driving the source lines. In the case where the amount of change of the data signal of the image data is small, in other words, in the case where power for charging and discharging the source line can be small, the source driver reduces the apparent size of the transistor at the output stage, and power consumption can be reduced. Furthermore, the amount of heat generation can be reduced.Type: GrantFiled: March 7, 2018Date of Patent: December 29, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kiyotaka Kimura, Hidetomo Kobayashi
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Patent number: 10878734Abstract: A driving circuit includes a driving unit, a light-emitting element, and a detection unit. The driving unit has a first terminal coupled to a first voltage source, a second terminal coupled to a data line to receive a plurality of display data, and a third terminal coupled to a first node. The driving unit provides a driving signal to the first node according to the plurality of display data. The light-emitting element has a first terminal coupled to the first node and a second terminal coupled to a second voltage source. The detection unit is coupled to the first node and a detection node. In a test mode, when the driving unit provides the driving signal, the detection unit detects a potential of the first node to generate a detection signal which is used to indicate a state of the light-emitting element or the detection unit.Type: GrantFiled: October 19, 2018Date of Patent: December 29, 2020Assignee: INNOLUX CORPORATIONInventors: Hirofumi Watsuda, Kazuyuki Hashimoto, Jui-Feng Ko
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Patent number: 10860096Abstract: The present disclosure generally relates to controlling electronic devices. In some examples, the electronic device uses gaze information to activate a digital assistant. In some examples, the electronic device uses gaze information to identify an external device on which to act. In some examples, the electronic device provides an indication that distinguishes between different speakers.Type: GrantFiled: August 28, 2019Date of Patent: December 8, 2020Assignee: Apple Inc.Inventors: Sean B. Kelly, Felipe Bacim De Araujo E Silva, Karlin Y. Bark
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Patent number: 10859838Abstract: A head-mounted display (HMD) includes a dichroic element, an eye tracking system, a controller, and an external focus camera. The dichroic element is transmissive to the light in a first optical band (e.g., visible light) but reflective to light in a second optical band (e.g., IR light). The eye tracking system includes a source assembly and a tracking camera. The source assembly projects light in the second optical band into an eyebox of the HMD. The tracking camera captures images of at least a portion of a user's eye in the eyebox. The controller of the HMD determines a gaze direction of the user based on the captured images. An orientation of the external focus camera corresponds to the gaze direction. The external focus camera captures image data of a portion of a local area surrounding the HMD at the orientation.Type: GrantFiled: September 20, 2019Date of Patent: December 8, 2020Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Patent number: 10852876Abstract: A touch screen is disclosed that includes conductive elements in a display area and connecting traces for routing the conductive elements to other locations. The connecting traces can be routed underneath or over existing opaque structures in the display area, instead of in border areas adjacent to the display area, to minimize the effect of the connecting traces on the display aperture ratio. The lengths and/or widths of these connecting traces as well as the number of parallel connecting traces used to connect to a particular element can be selected to balance the load on the drive and/or sense circuitry and on display pixels caused by the connecting traces.Type: GrantFiled: September 23, 2014Date of Patent: December 1, 2020Assignee: Apple Inc.Inventors: Abbas Jamshidi-Roudbari, Cheng-Ho Yu, Shih-Chang Chang, Ting-Kuo Chang
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Patent number: 10838564Abstract: A display device may include a display panel, an input sensing unit, and an alignment structure. The display panel may include a sealing member. The input sensing unit may be disposed on the display panel. The input sensing unit may include first-type sensor electrodes directly contacting a face of a first insulator of the display device, a first-type connector electrically connecting the first-type sensor electrodes, second-type sensor electrodes directly contacting the face of the first insulator of the display device, and a second-type connector electrically connecting the second-type sensor electrodes. The alignment structure may overlap the sealing member and may include a transparent member that directly contacts the face of the first insulator of the display device.Type: GrantFiled: April 23, 2019Date of Patent: November 17, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jong Seon Park, Hwan Hee Jeong
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Patent number: 10831364Abstract: A terminal device is provided that has a collation unit, a specification unit, and a display unit. The collation unit: references a storage unit that stores built-in display information that specifies a built-in display and a plurality of pieces of external display information that specify a plurality of connected external displays; and collates the built-in display information and the plurality of pieces of external display information. On the basis of the results of the collation, the specification unit specifies a display that has a specific positional relationship with a reading device for biological information. The display unit displays, on the specified display, a screen for touch locations that represent a read operation for the biological information.Type: GrantFiled: June 19, 2019Date of Patent: November 10, 2020Assignee: FUJITSU CLIENT COMPUTING LIMITEDInventors: Masanori Kawahara, Makoto Suzuki, Rie Hasada
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Patent number: 10825389Abstract: A pixel control circuit and control method, a pixel unit, a display substrate and device are provided. The pixel control circuit includes: a pressure detecting sub-circuit and a switching sub-circuit; the pressure detecting sub-circuit is connected to a control node, and configured to control a potential of the control node to be a first potential when a pressure signal is detected; and the switching sub-circuit is connected to a first power source terminal, a light-emitting sub-circuit in the pixel unit and the control node respectively, and configured to provide a first power source signal from the first power source terminal for the light-emitting sub-circuit when the potential of the control node is the first potential. The pixel control circuit effectively raises the speed of fingerprint detection.Type: GrantFiled: November 7, 2018Date of Patent: November 3, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Chihjen Cheng, Yuzhen Guo, Pengpeng Wang, Xueyou Cao, Yanling Han, Ping Zhang
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Patent number: 10824288Abstract: A touch screen panel that including a substrate having an active area and a non-active area positioned outside the active area, and first and second sensing electrodes formed over the active area. The first sensing electrodes are connected along a first direction, and the second sensing electrodes are connected along a second direction that intersects the first direction, and outside wiring lines are formed in the non-active area to connect the first and second sensing electrodes to an external driving circuit in units of lines and have at least one of slits that cross insides of the outside wiring lines so that widths of conductive paths are reduced in partial sections.Type: GrantFiled: April 23, 2019Date of Patent: November 3, 2020Assignee: Samsung Display Co., Ltd.Inventor: Seung-Jin Lee
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Patent number: 10817119Abstract: A touch panel includes a substrate, a touch electrode, a control unit, and a trace structure. The substrate has a touch sensing area and a peripheral circuit area. The touch electrode is disposed on the touch sensing area of the substrate. The touch electrode includes a first transparent conductive layer, a second transparent conductive layer, and a metal mesh layer. The second transparent conductive layer is disposed on the first transparent conductive layer. The metal mesh layer is disposed between the first transparent conductive layer and the second transparent conductive layer, in which the metal mesh layer is at least partially in contact with the first transparent conductive layer and the second transparent conductive layer, and the metal mesh layer comprises plural metal lines. The trace structure is disposed on the peripheral circuit area of the substrate and configured to electrically connect the touch electrode to the control unit.Type: GrantFiled: April 21, 2019Date of Patent: October 27, 2020Assignee: HANNSTOUCH SOLUTION INCORPORATEDInventors: Ching-Feng Tsai, Wei-Ren Lo
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Patent number: 10818215Abstract: The present disclosure provides a display panel and a display apparatus. The display panel includes: light-emitting elements which include a first light-emitting element that emits light of a first color having a wavelength ranging from ?1 to ?2, a second light-emitting element that emits light of a second color having a wavelength ranging from ?3 to ?4, and a third light-emitting element that emits light of a third color having a wavelength ranging from ?5 to ?6; and first to third capping layers respectively covering light-exiting sides of the first to third light-emitting elements. At least one of the first to third capping layers contains an ultraviolet light absorber that can absorb light having a wavelength ranging from 380 nm to 410 nm with an absorption rate greater than or equal to 20%.Type: GrantFiled: May 27, 2019Date of Patent: October 27, 2020Assignee: WuHan TianMa Micro-Electronics Co., Ltd.Inventors: Wei Gao, Ping An, Lei Zhang, Jinghua Niu, Wenpeng Dai, Mingzhi Dai
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Patent number: 10818230Abstract: A pixel circuit for a display device is operable in a compensation phase, a data programming phase, and an emission phase, whereby the one horizontal time is minimized while maintaining accurate compensation of the threshold voltage of the drive transistor, and noise applied to the gate of drive transistor during the emission phase is substantially eliminated. The pixel circuit includes a drive transistor configured to control an amount of current from a power supply to a light-emitting device during the emission phase depending upon a voltage input applied to a gate of the drive transistor, and a threshold voltage of the drive transistor is compensated during the compensation phase.Type: GrantFiled: June 3, 2019Date of Patent: October 27, 2020Assignee: Sharp Kabushiki KaishaInventor: Tong Lu
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Patent number: 10809551Abstract: A liquid crystal display device having switchable viewing angles includes a display panel and a display control module. The display panel includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The display control module is used for controlling the display panel to display images. The first substrate is provided with a first electrode. The second substrate is provided with a second electrode and a third electrode. The liquid crystal display device further includes a viewing angle control module. The display control module is further used to provide a synchronization signal to the viewing angle control module. According to the synchronization signal, when a next frame following a current frame on which a viewing angle switching signal is received starts to display, the viewing angle control module outputs a periodic alternating voltage for switching viewing angle to the first electrode.Type: GrantFiled: August 8, 2016Date of Patent: October 20, 2020Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Weifeng Fan, Peiyang Lin, Huilong Zheng