Display Power Source Patents (Class 345/211)
  • Patent number: 11508330
    Abstract: The present disclosure provides a device, in particular a multifocal display device. The device includes: a display element configured to generate an image; and a controller configured to control the display element according to at least a first bit sequence provided over a first determined time period and a second bit sequence provided over a second determined time period, in order to generate the image with one or more colors, the bit sequences including for each color a number of bits of different significance. Moreover, the device is configured to generate the first bit sequence from an original bit sequence based on discarding at least one bit of a color and to generate the second bit sequence from the original bit sequence based on discarding at least one other bit of the color.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: November 22, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Atanas Boev, Panji Setiawan, Bogdan Cihodariu Ionita
  • Patent number: 11501716
    Abstract: A display device includes a display unit including a plurality of pixels and a sensing unit disposed outside the display unit, where the sensing unit senses deterioration information of a driving transistor in each of the pixels through a plurality of sensing lines, and compensates for deterioration of the driving transistor. the sensing unit senses the deterioration information during a first sensing period, and the first sensing period is included in each of a power-off period in which power for the display device to display an image is not supplied, a power-on period in which the display device is turned on, and an image display period in which the image is continuously displayed after the display device is turned on.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Bo Young An, Wook Lee
  • Patent number: 11494024
    Abstract: A signal processing apparatus includes a first signal processing circuit and the second signal processing circuit. The first signal processing circuit receives a first signal. The first signal processing circuit has a power end connecting to a first voltage and a reference ground end. The second signal processing circuit receives a second signal. The second signal processing circuit has a power end which is electrically coupled to the reference ground end of the first signal processing circuit or equals the reference ground end of the first signal processing circuit. The second signal processing circuit has a reference ground end connecting to a second voltage.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: November 8, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
  • Patent number: 11488526
    Abstract: A display apparatus in which data signal distortion is reduced and thus is capable of accurately displaying an image includes a substrate including a display area that includes a first display area and a second display area, and a peripheral area surrounding the display area, first and second data lines respectively across the first and second display areas, main scan lines across the display area and disposed in parallel to the first and second data lines, sub scan lines across the display area and respectively connected to the main scan lines, the sub scan lines being disposed to cross the main scan lines, first data line pads connected to the first data lines, second data line pads connected to the second data lines, and scan line pads connected to the main scan lines, the first data line pads, the scan line pads, and the second data line pads being adjacent.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehoon Kim, Jisu Na, Seungkyu Lee
  • Patent number: 11488525
    Abstract: Disclosed are a driving method for a display panel and a drive circuit. The drive circuit includes: a power circuit, configured to output a power-off signal; a pixel control circuit, configured to turn on an active switch corresponding to a pixel; and a power-off circuit, configured to close a display panel, where the pixel control circuit includes: a first logical circuit, configured to output a first control signal for turning off the active switch; a second logical circuit, configured to output a second control signal for turning on the active switch; and a switching circuit, configured to switch the first logical circuit and the second logical circuit, the active switch corresponding to the pixel being turned on when the display panel is closed.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 1, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Bin Qiu
  • Patent number: 11482152
    Abstract: A display system includes a source device and a sink device. The source device generates red-color display data, green-color display data, and blue-color display data and transmits first packet data including the red-color display data and a red-color display reference gamma-set, second packet data including the green-color display data and a green-color display reference gamma-set, and third packet data including the blue-color display data and a blue-color display reference gamma-set. The sink device converts the red-color display data, the green-color display data, and the blue-color display data into red-color display data-voltages, green-color display data-voltages, and blue-color display data-voltages and displays an image using the red-color display data-voltages, the green-color display data-voltages, and the blue-color display data-voltages.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 25, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gwangsoo Ahn, Keunoh Kang, Kihyun Pyun, Moonshik Kang
  • Patent number: 11475845
    Abstract: A display device includes: a pixel connected to each of a first scan line, a second scan line, and a data line; a scan driver supplying a first scan signal to the first scan line and a second scan signal to the second scan line; a controller dividing one frame period into an active period and a blank period and generating a count signal in which a time duration of the blank period is counted and a power control signal; a data driver supplying a data signal to the data line; and a power supply controlling a source driving voltage supplied to the data driver according to a duration of the blank period based on the power control signal. When the count signal reaches a reference value, the controller supplies a start signal for output of the first scan signal to the scan driver.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyun Ho Kim, Jung Taek Kim, Hong Kyu Kim, Hyung Keun Park, Joon Suk Baik, Young Soo Sohn, Yong Jin Shin, Se Keun Lee
  • Patent number: 11475826
    Abstract: The present disclosure relates to a shift register for a display panel. The shift register may include an input terminal, an output terminal, an input unit, an output unit, a first control unit, a second control unit, and a first isolation unit. The output unit may be configured to transmit a first level or a second level to an output terminal based on levels of a first node and a second node.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: October 18, 2022
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinguo Li, Chen Xu, Xinyin Wu, Yong Qiao, Xueguang Hao
  • Patent number: 11477508
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: October 18, 2022
    Assignee: MAXELL, LTD.
    Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki
  • Patent number: 11462171
    Abstract: Disclosed herein are a gate driving circuit and a flexible display using the same. In gate driving circuit, a control block including an nth controller configured to generate one among a gate-off voltage, an EM start signal, and a carry signal from a (n-1)th EM signal transfer part as an nth EM output control signal to apply the nth EM output control signal to a start terminal of an nth EM signal transfer part on the basis of an nth scan signal (n is a natural number) from the first shift register, a first control signal designating an off-driving signal transfer parts and an on-driving signal transfer parts among the EM signal transfer parts, a second control signal designating a first on-driving signal transfer part, and a third control signal designating second to last on-driving signal transfer parts.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: October 4, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Dae Seok Oh, Soon Hwan Hong, Seung Tae Jin
  • Patent number: 11462190
    Abstract: A control circuit, a liquid crystal display drive module, and a liquid crystal display apparatus are disclosed. The control circuit includes: a first input end (101) and a second input end (102) that separately receive different external power source signals, and the control circuit sequentially controls the first input end (101) and the second input end (102) to input a power source signal to the drive chip, and sequentially controls the second input end (102) and the first input end (101) to power off.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: October 4, 2022
    Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventor: Liang Wen
  • Patent number: 11455034
    Abstract: A method for setting a display mode of a device according to facial features and an electronic device for the same are provided. The electronic device uses a camera unit to capture a facial image of a user for identifying facial organs. Then, a relative angle of the user's eyes viewing the image can be determined. After that, a turning signal can be provided according to an angle of the user's eyes viewing the image, and the state of the device. A display unit is driven to display a landscape mode image or a portrait mode image in response to the turning signal. Alternatively, a driving mechanism of the electronic device can be controlled and the electronic device is turned to a specific angle.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: September 27, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Kai-Hsiang Chou
  • Patent number: 11455960
    Abstract: The present invention provides a pixel driving circuit and a display panel. The pixel driving circuit includes a light emitting module and a compensation driving module which are electrically connected. The compensation driving module includes a doubled-gate driving thin film transistor, and is configured to charge a bottom gate of the doubled-gate driving thin film transistor and adjust a threshold voltage to an initial value in an initial stage. The compensation driving module receives a reference voltage to discharge the bottom gate of the doubled-gate driving thin film transistor in a threshold voltage compensation, realizing a compensation of the threshold voltage.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 27, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xiaodong Zhang, Sangcheol Song
  • Patent number: 11455943
    Abstract: A display device includes a substrate, a polycrystalline semiconductor layer including a channel of a driving transistor, and a channel of a seventh transistor, a gate electrode of the driving transistor overlapping the channel thereof, a gate electrode of the seventh transistor overlapping the channel thereof, an oxide semiconductor layer including a channel of a fourth transistor, a gate electrode thereof overlapping the channel of the fourth transistor, a first initialization voltage line connected to a first electrode of the fourth transistor, the first initialization voltage line and the gate electrode of the fourth transistor being position on a same layer, and a second initialization voltage line connected to a second electrode of the seventh transistor, the second initialization voltage line and the first initialization voltage line being positioned on different layers from each other.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: September 27, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Sung An, Seok Je Seong, Ji Seon Lee, Se Wan Son
  • Patent number: 11450276
    Abstract: A display device includes a pixel circuit and a control circuit configured to control the pixel circuit. The pixel circuit includes a light-emitting element, and a driving thin-film transistor configured to control the amount of current to the light-emitting element. The control circuit is configured to apply a stress current higher than a maximum current for the light-emitting element to display images to the driving thin-film transistor but not to supply current to the light-emitting element in a period other than light-emitting periods of the light-emitting element to display an image.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: September 20, 2022
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Genshiro Kawachi
  • Patent number: 11450271
    Abstract: A display device includes a display panel for driving a plurality of pixels. Each of the plurality of pixels includes: a light-emitting element; a driving transistor for controlling a driving current flowing through the light-emitting element; a first transistor for selectively applying a data voltage to a first node, a second transistor for receiving an emission signal from an emission control line to selectively apply a driving voltage to the first node; and a first capacitor connected between the first node and the emission control line. The first node is a source electrode of the driving transistor.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ji Su Na
  • Patent number: 11450277
    Abstract: A display device includes: a display panel in which a non-display region and a display region surrounding the non-display region are defined, wherein the display panel includes: a base layer comprising a first region in which a hole is defined corresponding to the non-display region, a second region surrounding the first region, and a third region corresponding to the display region; and first signal line parts disposed on the second region and the third region, the first signal line parts arrayed spaced apart from each other in a first direction, and each of the first signal line parts includes: a first line; a second line spaced apart from the first line; and a first connection part configured to connect the first line and the second line.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-yong An, Jaewon Kim, Hyunae Park, Hyungjun Park, Seungwoo Sung, Young-soo Yoon, Ji-eun Lee, Yun-kyeong In, Donghyeon Jang, Junyoung Jo
  • Patent number: 11449119
    Abstract: Disclosed is an electronic device including a first plate, a second plate disposed under the first plate, a flexible display including a screen area configured to expand based on a movement of the first plate from a closed state to an open state with respect to the second plate, at least one display driver integrated circuit, and a processor electrically connected to the flexible display and the at least one display driver integrated circuit, and the at least one display driver integrated circuit being configured to display, in a first state where the processor is in an inactive state and the screen area of the flexible display is not expanded, at least one first object in a first area of the screen area, and display, in a second state where the processor is in the inactive state and the screen area of the flexible display is expanded, at least one second object associated with the at least one first object, in a second area of the screen area of the expanded flexible display.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: September 20, 2022
    Inventors: Hanchul Jung, Jungchul An, Sungho Lee, Youngin Choi, Jungyeob Oh, Bonghak Choi, Donghyun Yeom, Minwoo Yoo
  • Patent number: 11450278
    Abstract: A display device includes: a luminance converter which converts input gradation value into a corresponding target luminance value; a luminance correction calculator which calculates output gradation value from the target luminance value using efficiency residual ratio representing a deterioration degree of a light-emitting element, and calculates a corrected luminance value therefrom; a current stress calculator which converts current stress amount on a light-emitting element calculated from the corrected luminance value into current stress amount when first reference current flows through the light-emitting element, and accumulates this to calculate an accumulated first stress amount; a CB stress calculator which converts CB stress amount on the light-emitting element into current stress amount when second reference current flows through the light-emitting element, and accumulates this to calculate an accumulated second stress amount; and an efficiency residual ratio calculator which updates the efficiency r
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: September 20, 2022
    Assignee: JOLED INC.
    Inventors: Eiji Iwauchi, Kazuki Sawa, Kazuhiro Yoneda
  • Patent number: 11443696
    Abstract: An apparatus for display an active region having a plurality of light-emitting elements, a gate scanning driver operatively coupled to the active region and configured to stop a gate scanning signal to the plurality of light-emitting elements in a period, and a light emitting driver operatively coupled to the active region and configured to cause the plurality of light-emitting elements to emit light in the period.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: September 13, 2022
    Assignee: KUNSHAN YUNYINGGU ELECTRONIC TECHNOLOGY CO., LTD.
    Inventors: Kun-Yueh Lin, Hong-Zhang Lin, Chun-Ta Wu, Yu-Hsun Peng
  • Patent number: 11443700
    Abstract: A display device includes a display panel including a gate line, a data line, and a pixel at a crossing region of the gate line and the data line, a timing controller configured to generate a gate driving control signal, a data driving control signal, and a power control signal based on a display period corresponding to a time interval of frames, a gate driver configured to provide a gate signal to the pixel through the gate line based on the gate driving control signal, a data driver configured to provide a data signal to the pixel through the data line based on the data driving control signal, and a power supply configured to generate a power voltage to drive the pixel, and configured to adjust the power voltage based on the power control signal during the display period.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: September 13, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si-Beak Pyo, Won-Ju Shin, Kyung-Ho Hwang
  • Patent number: 11443706
    Abstract: A shift register includes an input circuit, a compensation circuit, an output circuit, a pull-down control circuit, a pull-down circuit, and a reset circuit. During operation of a pixel driving circuit, if a display abnormality occurs in one or more pixels corresponding to the shift register, a compensation signal may be provided by the compensation circuit to a pull-up node according to specific condition of the display abnormality, so as to change a voltage of the pull-up node, and further change a delay time of waveform of the signal passing the switching element in the output circuit connected to the pull-up node.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: September 13, 2022
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.
    Inventors: Zhuo Xu, Hailong Wu, Yajie Bai, Haipeng Zhu, Min Ran, Peng Liang, Zhi Zhang
  • Patent number: 11437912
    Abstract: A DC-DC converter including a first power supply including a first converter outputting a first power voltage, a first sensor detecting a panel current from an output of the first converter; and a first output group including a plurality of inverting converters outputting a second power voltage based on the panel current; a second power supply including a second converter outputting the first power voltage, and a second output group including a plurality of inverting converters outputting the second power voltage based on the panel current; and a first phase controller controlling operations of the inverting converters included in each of the first and second output groups based on the detected panel current. The second power supply operates when the panel current exceeds a predetermined enable value.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: September 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Sung Chun Park
  • Patent number: 11429170
    Abstract: A display apparatus includes a display and a controller. The controller is configured to receive, from the display, an arithmetic value for electric current consumption of the display; estimate the electric current consumption of the display based on the arithmetic value that was received; and when the estimated electric current consumption of the display is equal to or greater than a predetermined electric current threshold, decrease an electric current to be supplied to the display. The arithmetic value is calculated based on pixel value information.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: August 30, 2022
    Assignee: DENSO TEN Limited
    Inventor: Nobuaki Kajimoto
  • Patent number: 11423847
    Abstract: A display device includes: a display panel including a plurality of pixels; a power management circuit configured to generate an analog power supply voltage; and a data driver configured to provide a pre-emphasis voltage and a data voltage to the plurality of pixels based on the analog power supply voltage, wherein the display device is configured to adjust a voltage level of the pre-emphasis voltage according to a distance from the data driver to each of the plurality of pixels to which the pre-emphasis voltage is applied, and wherein the display device is configured to adjust a voltage level of the analog power supply voltage according to the adjusted voltage level of the pre-emphasis voltage.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: August 23, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunho Lim, Bongho Bae, Ok-Kwon Shin, Hyun Ha Yang, Chongguk Lee, Myeong Bin Lim, Sehui Jang
  • Patent number: 11423896
    Abstract: A device initiates voice control through gaze detection. The device detects that a user is gazing at a gaze target. Responsive to that detection, the device captures audio and performs automatic speech recognition of the captured audio to turn the audio into text. The device performs natural language understanding on the text to determine an application-specific command. The device performs application-specific processing for the application-specific command.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 23, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Oliver Unter Ecker
  • Patent number: 11417283
    Abstract: Disclosed herein are a display device for low-speed driving and a driving method thereof. The display device according to embodiments of the present disclosure may set a reference compensation voltage for compensating a node voltage of each pixel during an image holding period after a refresh period where image data are input at the time of low-speed driving, and may compensate a node voltage of each sub pixel on the basis of a unit of at least one frame during each image holding period between the refresh periods, thereby making it possible to prevent a deterioration of image quality and reduce electricity consumption.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: August 16, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Sungyoung Son, Suhyeon Jo, Dongseok Ahn
  • Patent number: 11417262
    Abstract: A display device includes a display panel, a gate driving circuit including a plurality of stages, and a power supply circuit outputting a clock signal, a clock-bar signal, a first discharge voltage, and a second discharge voltage. Each of stages includes a charge part that charges a clock signal having a first high voltage to a charge node, an output part that charges the first high voltage to an output node in response to a first node voltage of the charge node and outputs a second node voltage of the output node to a gate signal, a first discharge part that discharges the second node voltage to a first discharge voltage in response to the clock-bar signal having a second high voltage, and a second discharge part that discharges the first node voltage to a second discharge voltage in response to the clock-bar signal having the second high voltage.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: August 16, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keunoh Kang, Yanguk Nam, Gwangsoo Ahn
  • Patent number: 11417264
    Abstract: A scan driver stage including: a first transistor including a gate connected to a first clock, a first electrode connected to a carry terminal, and a second electrode connected to a first node; a second transistor including a gate connected to a second clock, a first electrode connected to a carry terminal, and a second electrode connected to the first node; a third transistor including a gate connected to the first node and a first electrode connected to a second node; a fourth transistor including a gate connected to the second clock, a first electrode connected to power, and a second electrode connected to the second node; a fifth transistor including a gate connected to the first clock, a first electrode connected to power, and a second electrode connected to the second node; and an output outputting first and second scan signals based on first and second node voltages.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: August 16, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Keun Lim, Jin Young Roh, Se Hyuk Park, Hyo Jin Lee
  • Patent number: 11417287
    Abstract: A display apparatus includes: a liquid crystal panel; and a light apparatus on which the liquid crystal panel is disposed, the light apparatus including: a substrate; a plurality of dimming blocks including a first dimming block and a second dimming block disposed immediately next to the first dimming block, each of the plurality of dimming blocks including at least one respective light source disposed on a first side of the substrate; and a plurality of driving devices disposed on the first side of the substrate and including a first driving device disposed in the first dimming block and a second driving device disposed in the second dimming block, each driving device of the plurality of driving devices being configured to provide a driving current to the at least one respective light source included in a respective one of the plurality of dimming blocks, wherein the first driving device and the second driving device are disposed at relatively different positions respectively within the first dimming block a
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: August 16, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungyeol Kim, Sungbok Yang, Seokwoo Yong, Kyehoon Lee, Junsung Choi
  • Patent number: 11417256
    Abstract: A shift register unit and a driving method thereof, a gate drive circuit, and a display device are disclosed. The shift register unit includes a first input sub-circuit, a first control sub-circuit, an output sub-circuit, and a second control sub-circuit. The first input sub-circuit is configured to output a first control signal of the first control signal terminal to the first control sub-circuit; the first control sub-circuit is configured to output a second input signal of the second input terminal to the first node, or the first control sub-circuit is configured to output the second input signal to the second control sub-circuit; the second control sub-circuit is configured to output a second clock signal to the second node; or the second control sub-circuit is configured to output a first voltage of the first voltage terminal to the second node under control of a level of the control node.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: August 16, 2022
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jie Zhang
  • Patent number: 11410612
    Abstract: A driving circuit includes: a plurality of scan stages each corresponds to a plurality of scan lines, receives clock signals and a carry signal, and outputs a scan signal; and a plurality of masking circuits corresponding to some scan stages, respectively, among the scan stages. each masking circuit outputs one of the scan signal output from a corresponding scan stage and a first voltage as a masking carry signal in response to a masking signal. A j-th scan stage receives a scan signal output from a (j?a)th scan stage as the carry signal when the (j?a)th scan stage is not one of the some first scan stages, and the masking carry signal output from a masking circuit corresponding to the (j?a)th scan stage as the carry signal when the (j?a)th scan stage is one of the some first scan stages.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junki Jeong, Gyungsoon Park, Seon Young Choi
  • Patent number: 11404521
    Abstract: A display apparatus includes a first substrate including a display area and a peripheral area on a side of the display area, a second substrate facing the first substrate, a fan-out portion arranged in the peripheral area and including a plurality of wires, a power supply line arranged over the fan-out portion and in the peripheral area, an insulating layer arranged between the plurality of wires and the power supply line, and a sealing portion arranged in the peripheral area. The sealing portion surrounds a periphery of the display area and attaches the first substrate and the second substrate to each other. The peripheral area includes an overlapping area in which the fan-out portion, the power supply line, and the sealing portion overlap one another. The power supply line arranged in the overlapping area includes a first conductive layer and a second conductive layer arranged on the first conductive layer.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sangho Moon, Taejong Eom, Chungi You
  • Patent number: 11404520
    Abstract: An organic light emitting diode display according to exemplary embodiments includes: a data wire including a data line disposed in a display area and a first data line disposed in a peripheral area; a driving voltage wire including a driving voltage line disposed in the display area and a first driving voltage line disposed in the peripheral area and extending in a first direction; and a driving low voltage wire including a cathode covering the display area and formed to the peripheral area and a first driving low voltage connection portion connected to the cathode and disposed in the peripheral area, wherein the first driving low voltage connection portion includes a first portion and a second portion having a different width than the first portion.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Hyun Park, Dong Woo Kim, Sung Jae Moon, Kang Moon Jo
  • Patent number: 11398191
    Abstract: An organic light-emitting display device includes: a display panel in which a plurality of data lines and a plurality of gate lines are arranged to overlap each other and that includes a plurality of subpixels which are arranged in areas in which the plurality of data lines and the plurality of gate lines overlap each other; a data driver that supplies a data signal to the plurality of data lines; a gate driver that supplies a gate signal to the plurality of gate lines; and a timing controller that controls the data driver and the gate driver such that the data driver outputs a sensing voltage in a first section, outputs a compensation voltage in a second section, and outputs a data voltage in a third section.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 26, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Youngchan Kim, Jaehwan Yun
  • Patent number: 11381239
    Abstract: The present disclosure relates to switching drivers for driving a transducer. A switching driver (202) has supply nodes for receiving supply voltages (VSH, VSL) defining at least one input voltage and an output node (104). A controller (205) controls operation of the first switching driver to generate a drive signal for the transducer at the output node (104), based on an input signal (Sin). A first capacitor (201a) is connected between first and second capacitor nodes (104, 204a) and a second capacitor (201b) is connected between the second capacitor node (204a) and a third capacitor node (204b). A network of switches (203) selectively connects any of the driver output node, the second capacitor node and the third capacitor node to either of a respective pair of said supply nodes, with the first capacitor node connected to the first driver output node.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: July 5, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: John P. Lesso, John L. Melanson
  • Patent number: 11373566
    Abstract: An electronic device includes a first sub-pixel and a test element. The first sub-pixel includes a first transistor, and a first electronic unit. The first electronic unit is electrically connected to the first transistor. The test element is electrically connected to the first transistor. The test element has a first impedance, the first electronic unit has a second impedance, and the first impedance is higher than the second impedance.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: June 28, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Ker-Yih Kao, Chin-Lung Ting, Liang-Lu Chen
  • Patent number: 11373627
    Abstract: An electronic device according to various embodiments may comprise a display panel, a processor, and a display driver circuit including an internal memory and configured to drive the display panel, wherein the display driver circuit may be configured to: receive, from the processor, movement information of a designated content to be displayed on the display panel while the processor operates in a low power state; store the movement information in the internal memory; display the designated content at a first position on the display panel while the processor operates in the low power state; and move the designated content displayed at the first position to a second position on the display panel and display the same at the second position, at least on the basis of the movement information stored in the internal memory while the processor operates in the low power state.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 28, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunpyo Hong, Jongkon Bae, Yohan Lee, Hanyuool Kim, Dongkyoon Han
  • Patent number: 11368034
    Abstract: A battery charging method and apparatus are provided. The battery charging apparatus determines, in a present charging operation, a variation in a charging current to charge a battery based on a degradation condition of the battery and an internal state of the battery in the present charging operation, and determines a charging current of a subsequent charging operation based on the variation in the charging current in the present charging operation and the charging current in the present charging operation.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: June 21, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Young Hun Sung, Duk Jin Oh, Ju Wan Lim
  • Patent number: 11355052
    Abstract: A display apparatus includes a display panel including a plurality of pixels, and a driver which receives input image data, generates final image data by compensating the input image data to increase luminances of pixels disposed in at least one edge portion of the display panel among the plurality of pixels, and drives the display panel based on the final image data. The input image data for a pixel of the pixels is compensated based on a compensation constant determined according to a position of the pixel when the input image data for the pixel represents a gray level higher than or equal to a first reference gray level, and is compensated based on a reduced compensation constant that is reduced from the determined compensation constant when the input image data for the pixel represents the gray level lower than the first reference gray level.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae-Jong Jun, Jae Sung Bae, Sanghyun Lee, Daeki Park, Namjae Lim
  • Patent number: 11355062
    Abstract: In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for modifying usage of display device pixels. A computing system monitors usage of a plurality of pixels of a display device and determines a target usage level. The computing system identifies that a usage level of a first pixel does not satisfy the target usage level and selects an occasion at which to present the first pixel in a frame to be presented by the display device with an increased intensity with respect to an original intensity that was specified for the first pixel by the frame. The computing system activates the first pixel at the increased intensity during presentation by the display device of the frame.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: June 7, 2022
    Assignee: Google LLC
    Inventors: Marissa Karen Wall, Christine L. Franks, Seang Yong Chau, Glen Murphy
  • Patent number: 11348524
    Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueling Gao, Kuanjun Peng, Chengchung Yang, Xiangxiang Zou, Wei Qin
  • Patent number: 11348521
    Abstract: A display device includes a plurality of pixels. A pixel includes an organic light emitting diode and a pixel circuit including a first transistor that includes a gate electrode connected with a first node, a first electrode connected with a second node, and a second electrode connected with a third node; a second transistor that includes a gate electrode connected with a first gate line, a first electrode connected with a data line, and a second electrode connected with the second node; a third transistor that includes a gate electrode connected with a third gate line, a first electrode connected with the third node, and a second electrode connected with the first node; and a fourth transistor that includes a gate electrode connected with a second gate line, a first electrode connected with the third gate line, and a second electrode connected with the first node.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Yang Wan Kim
  • Patent number: 11341930
    Abstract: Embodiments of the present disclosure provide an erasing unit for image sticking in a liquid crystal display device, a control method thereof and a liquid crystal display device. A first controlling signal may be generated by dividing a voltage at a DC power supply terminal. A controlling circuit may output a second controlling signal and a third controlling signal in responding to the voltage of the first controlling signal being smaller than or equal to a reference voltage. A charging and discharging circuit may discharge under the control of the second controlling signal and output a high-level voltage signal to an outputting circuit. The outputting circuit may supply the high-level voltage signal outputted by the charging and discharging circuit to TFTs in the liquid crystal display device, controlling the TFTs to be turned on.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: May 24, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiuqin Yang, Siying Lu, Huiming Wang, Wenbo Dong
  • Patent number: 11335274
    Abstract: An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 17, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jeong Lee, Kyung Min Shin, Yong Sung Ahn, Gi Woong Shin
  • Patent number: 11335708
    Abstract: A display device capable of improving image quality is provided. A storage node is provided in each pixel and first data can be held in the storage node. Second data is added to the first data by capacitive coupling, which can be supplied to a display element. Thus, the display device can display a corrected image. A reference potential for the capacitive coupling operation is supplied from a power supply line or the like, and thus the first data and the second data can be supplied from a common signal line.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 17, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Susumu Kawashima, Naoto Kusumoto
  • Patent number: 11335276
    Abstract: A display driving device, which adjusts a brightness of an image on the basis of an ambient illumination even without an increase in amount of power consumption, includes a controller determining a clipping ratio for clipping input image data by using an ambient illumination value when the ambient illumination value is input thereto, a gain calculator calculating a frame gain which is to be applied to the input image data, based on the clipping ratio, an input image clipping unit clipping the input image data by applying the frame gain in the input image data, and a gamma converter gamma-converting clipped input image data to generate output image data.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: May 17, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jin Ho Lee, Heung Lyeol Lee, Hyun Kyu Jeon
  • Patent number: 11328688
    Abstract: The present disclosure relates to a pixel compensation method and device, a storage medium, and a display screen, and belongs to the field of display technologies. The method includes: sensing a plurality of subpixels in a first target grayscale of a display screen by using a plurality of photosensitive units, to obtain an actual luminance value of each subpixel; determining a theoretical luminance value of each subpixel in the first target grayscale based on a compensation sensing model, where the compensation sensing model is used to record a correspondence between target grayscales and theoretical pixel data, and the theoretical pixel data includes a reference luminance value of each subpixel; and performing pixel compensation on each subpixel based on the actual luminance value of each subpixel and the theoretical luminance value of each subpixel.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mingi Chu, Yicheng Lin
  • Patent number: 11328660
    Abstract: Display devices and methods for driving display devices are provided. The method may include, in a first stage of the data writing phase, always turning on m1 first switch units of each multiplexer under a control of m1 corresponding clock signal lines, and sequentially turning on m2 second switch units for a preset time in a preset order; in a second stage of the data writing phase, keeping the m1 first switch units always on, turning off the m2 second switch units, and writing corresponding data voltage signals to the row of sub-pixels to cause the row of sub-pixels to display; and in the display maintaining phase, displaying same as in the second stage of the data writing phase. At least one first switch unit is always turned on under the control of a corresponding clock signal line when at least two continuously scanned rows of sub-pixels are displaying.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 10, 2022
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yana Gao, Yuantao Wu, Xingyao Zhou, Mengmeng Zhang, Yue Li, Ranran Zeng
  • Patent number: 11328672
    Abstract: A shift register unit and a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes: a first input circuit, a second input circuit, an output circuit, and a compensation circuit, the first input circuit is configured to write a first input signal to the first node in response to a first control signal; the second input circuit is configured to input a second input signal to the second node in response to a detection control signal and configured to transmit a level of the second node to the first node in response to a second control signal; the compensation circuit is configured to compensate the level of the second node; and the output circuit is configured to output a composite output signal to the output terminal under control of a level of the first node.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: May 10, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li