Electroluminescent Patents (Class 345/76)
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Patent number: 11749201Abstract: The present disclosure provides a display device and a circuit and method for acquiring voltages, and belongs to the field of display technologies. The display device includes: a display panel including a plurality of sub-pixels and a plurality of sensing lines, each of the sub-pixels being connected to one of the sensing lines; a reference voltage providing circuit configured to provide a reference voltage; a sampling circuit electrically connected to the sensing lines and the reference voltage providing circuit, respectively, and configured to acquire a voltage on each sensing line to obtain a first sampling value, and acquire the reference voltage provided by the reference voltage providing circuit to obtain a second sampling value; and a processing circuit electrically connected to the sampling circuit, and configured to correct the first sampling value based on the second sampling value and the reference voltage.Type: GrantFiled: October 28, 2020Date of Patent: September 5, 2023Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.Inventors: Taejin Kim, Wenchao Bao
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Patent number: 11749194Abstract: A display substrate, a driving method therefor, and a display device are provided. The display substrate includes: a base substrate, provided with multiple pixel islands discretely provided, the pixel islands including multiple subpixels distributed in an array; a plurality of pixel circuits, arranged in the subpixels respectively, each of the pixel circuits including a driving transistor and a light-emitting component, a first electrode of the driving transistor being electrically connected to a first power supply end, a second electrode of the driving transistor being electrically connected to an anode of the light-emitting component, and a cathode of the light-emitting component being electrically connected to a second power supply end; and multiple light emission control circuits, each arranged at a gap between adjacent pixel islands, the light emission control circuit being electrically connected between the first power supply end and the first electrode of the driving transistor.Type: GrantFiled: September 1, 2021Date of Patent: September 5, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Can Zhang, Ning Cong, Minghua Xuan, Xiaochuan Chen
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Patent number: 11749202Abstract: A pixel driving circuit comprises a data writing circuit, a driving circuit, a light emitting control circuit, a compensation circuit and a storage circuit, the data writing circuit is coupled to the driving circuit, for writing a data signal into the driving circuit; the driving circuit is coupled to a first power source end and a light-emitting sub-circuit through the light emitting control circuit, for inputting, under control of the light emitting control circuit, driving current into the light-emitting sub-circuit according to the data signal; the compensation circuit is coupled to the driving circuit; the storage circuit is coupled between the first power source end and the driving circuit; and the data writing circuit and the compensation circuit includes at least two transistors, wherein in the data write circuit and the compensation circuit, at least one transistor is a low-temperature polysilicon transistor, and at least one transistor is an oxide transistor.Type: GrantFiled: April 20, 2021Date of Patent: September 5, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Qian Yang
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Patent number: 11749192Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, a pixel row, and a first scan line and a second scan line on the base substrate. The pixel row includes a plurality of sub-pixels along a first direction on the base substrate; the first scan line and the second scan line are extended along the first direction, and each sub-pixel includes a pixel circuit including a data writing sub-circuit, a storage sub-circuit, and a driving sub-circuit. The first scan line and the second scan line are respectively electrically connected with the data writing circuit to provide control signals. The first scan line and the second scan line have the same resistance and the same area of orthographic projections on the base substrate.Type: GrantFiled: March 19, 2020Date of Patent: September 5, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Dachao Li
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Patent number: 11747844Abstract: A voltage regulator including an amplifier, a start signal generator and a power transistor is provided. The amplifier has a first positive input terminal, a second positive input terminal, and a negative input terminal to receive a start signal, a reference voltage and a feedback voltage respectively. An output terminal of the amplifier generates a driving voltage. The start signal generator is coupled to the first positive input terminal of the amplifier and generates the start signal, which is incremental, during a startup time interval in a voltage bypass mode. The power transistor generates an output voltage according to the driving voltage based on an operating power. In the voltage bypass mode, the reference voltage is equal to the operating power. A soft-start effect can be effectively achieved by the voltage regulator in the voltage bypass mode.Type: GrantFiled: November 4, 2021Date of Patent: September 5, 2023Assignee: ALi CorporationInventors: Chih-Yuan Hsu, Chien-Yuan Lu
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Patent number: 11741904Abstract: A display may have rows and columns of pixels. Gate lines may be used to supply gate signals to rows of the pixels. Data lines may be used to supply data signals to columns of the pixels. The data lines may include alternating even and odd data lines. Data lines may be organized in pairs each of which includes one of the odd data lines and an adjacent one of the even data lines. Demultiplexer circuitry may be configured dynamically during data loading and pixel sensing operations. During data loading, data from display driver circuitry may be supplied, alternately to odd pairs of the data lines and even pairs of the data lines. During sensing, the demultiplexer circuitry may couple a pair of the even data lines to sensing circuitry in the display driver circuitry and then may couple a pair of the odd data lines to the sensing circuitry.Type: GrantFiled: March 19, 2021Date of Patent: August 29, 2023Assignee: Apple Inc.Inventors: Ting-Kuo Chang, Abbas Jamshidi Roudbari, Tsung-Ting Tsai, Warren S. Rieutort-Louis, Shinya Ono, Shin-Hung Yeh, Chien-Ya Lee, Shyuan Yang
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Patent number: 11743407Abstract: A plurality of groups are arranged in a light emitting device. Each of the groups includes a plurality of light-emitting elements, a plurality of transistors arranged corresponding to the plurality of light-emitting elements and configured to supply current to the plurality of light-emitting elements, and a group control transistor configured to control current flowing through the plurality of transistors. The plurality of groups have a first group and a second group. The first group has a plurality of light-emitting elements. The second group has a plurality of light-emitting elements. A light-emitting element of the second group is arranged between one light-emitting element of the first group and the other light-emitting element of the first group.Type: GrantFiled: April 6, 2022Date of Patent: August 29, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Tatsuya Suzuki
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Patent number: 11741887Abstract: A display device includes a pixel, a scan driver supplying first to third scan signals in a first non-emission period and supplying the second scan signal in a second non-emission period, an emission driver supplying an emission control signal in the first and second non-emission periods, and a data driver supplying a data signal in the first non-emission period. The pixel includes a light-emitting element, a first transistor, a second transistor connected between the data line and a second node, a first capacitor connected between the first and second nodes, a third transistor connected between a third power line and the first node, a storage capacitor connected between the first and third nodes, a fourth transistor connected between the third node and a fourth power line, a fifth transistor connected between the first power line and the first transistor, and a sixth transistor supplying a fifth supply voltage.Type: GrantFiled: May 16, 2022Date of Patent: August 29, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yong Jae Kim, Yun Hwan Park, Woo Ri Seo, Yoon Jee Shin
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Patent number: 11741891Abstract: The present disclosure discloses a display device and a driving method of the display device. The display device includes a display panel for displaying an image, a driver for driving the display panel, a controller for controlling the driver, and a duty cycle controller for defining an unknown area in which vertical resolution information is not known and a known area in which the vertical resolution information is known within one frame when a driving frequency of the display panel is changed, and varying a duty cycle for driving the known area.Type: GrantFiled: October 13, 2022Date of Patent: August 29, 2023Assignee: LG Display Co., Ltd.Inventors: Jae Yeong Go, Tae Gung Kim, Dae Sung Park
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Patent number: 11735110Abstract: A display device includes a display panel on which gate lines, data lines and subpixels are disposed; a gate driving circuit which drives the gate lines; and a data driving circuit which drives the data lines. Each of the subpixels includes: a light emitting device; a second transistor which has a first node, a second node that is a gate node, and a third node electrically connected to the light emitting device, and drives the light emitting device; a first transistor electrically connected between the third node and the data line; a third transistor electrically connected between the first node and the second node; and a fourth transistor electrically connected between the third node and the light emitting device. The third transistor performs a turn-off operation later than the first transistor, so that a voltage applied to the third node is transmitted to the second node via the first node.Type: GrantFiled: December 16, 2021Date of Patent: August 22, 2023Assignee: LG Display Co., Ltd.Inventor: Jaeyong You
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Patent number: 11735092Abstract: A display device includes first pixels partitioned into a plurality of blocks, each of the plurality of blocks being categorized as a first block or a second block, a sensor configured to generate first sensing data for at least two of the first pixels in each of the plurality of blocks during a first period, and a sensing controller configured to generate interpolated data for the first pixels that are not sensed by the sensor by interpolating the first sensing data, for the first block, and configured to forgo interpolation of the first sensing data, for the second block. The sensor generates second sensing data for the first pixels that are not sensed by the sensor, for the second block, during a second period after the first period.Type: GrantFiled: March 21, 2022Date of Patent: August 22, 2023Assignee: Samsung Display Co., Ltd.Inventors: Su Min Yang, Wook Lee, Hye Ji Kim, Ki Hyun Pyun
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Patent number: 11735097Abstract: Provided are a light-emitting diode (LED) display device and a method of operating the LED display device determining whether a line flicker will occur based on a level of an input image signal, obtaining an LED line scan order corresponding to the level of the input image signal and brightness according to the input image signal based on the determining, and driving at least one LED line based on the LED line scan order. An LED line scan order may be adjusted according to a level of an input/output image signal in an LED display device so as to reduce occurrence of a line flicker phenomenon in all levels of the input/output image signal.Type: GrantFiled: July 29, 2020Date of Patent: August 22, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-yong Park, Sang-kyun Im, Young-hoon Cho, Hye-rin Choi
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Patent number: 11735131Abstract: A display device that is suitable for increasing in size is achieved. Three or more source lines are provided for each pixel column. Video signals having the same polarity are input to adjacent source lines during one frame period. Dot inversion driving is used to reduce a flicker, crosstalk, or the like.Type: GrantFiled: November 11, 2021Date of Patent: August 22, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hajime Kimura
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Patent number: 11735096Abstract: A pixel driving circuit and a display panel are provided. The pixel driving circuit includes a control unit to output a control signal by detecting a voltage difference between two opposite ends of a sampling resistor, and to turn on a fourth switch by the control signal. When the fourth switch is turned on, a second positive voltage received by the pixel driving circuit charges a second node to further speed up a voltage pulling up of the second node to improve a detecting speed of the pixel driving circuit.Type: GrantFiled: April 15, 2020Date of Patent: August 22, 2023Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Lei Gao
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Patent number: 11727883Abstract: A light-emitting display device includes first and second sub pixels each of which includes a driving transistor including first and second electrodes and a gate electrode, and being configured to control an electric current flowing from the first electrode to the second electrode according to a data voltage applied to a gate electrode, a light-emitting element connected to the second electrode, and a first capacitor disposed between a first sub supply voltage line to which a first supply voltage is applied and the second electrode. The first sub supply voltage line is disposed to overlap the second electrode. A capacitance of a first capacitor of the first sub pixel versus a capacitance of a first capacitor of the second sub pixel is selectively determined to correspond to an amount of the overlap between the first sub supply voltage line and the second electrode.Type: GrantFiled: February 7, 2022Date of Patent: August 15, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Won Park, Chae Han Hyun
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Patent number: 11727877Abstract: A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.Type: GrantFiled: August 19, 2022Date of Patent: August 15, 2023Assignee: Samsung Display Co., Ltd.Inventors: Young-In Hwang, Sung Ho Kim, Eung Taek Kim, Yong Ho Yang, Seong Min Wang, Jung-Mi Choi
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Patent number: 11727888Abstract: A display driving circuit is provided. The circuit drives a display panel that includes data lines, sensing lines, and sub-pixels connected to the data lines and the sensing lines. The display driving circuit includes a data driver integrated circuit that drives the data lines. The data driver integrated circuit includes a driving block and a sensing block. The driving block includes plural digital-analog converters (DACs) each performing digital-analog conversion with respect to received sub-pixel data to generate output voltages and provide the output voltages of the DACs to the data lines. The sensing block measures grayscale voltages output from the DACs in a first operation mode and measures pixel voltages of the sub-pixels received from the sensing lines in a second operation mode.Type: GrantFiled: February 27, 2020Date of Patent: August 15, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jiyong Jeong, Yongjoo Song, Jeongah Ahn, Hajun Lee, Youngsub Jin
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Patent number: 11721288Abstract: In the pixel circuit, first terminal of drive module configured to receive signal output by first power supply, first light emission control module connected between second terminal of drive module and first terminal of light emitting module, and second terminal of light emitting module connected to second power supply; first terminal of first storage module connected to control terminal of drive module, second terminal of first storage module connected to first terminal of second storage module, and second terminal of second storage module connected to first terminal of light emitting module; threshold detection module connected between second terminal of first storage module and second terminal of drive module, and configured to control first storage module to store threshold voltage of drive module; data writing module connected to second terminal of drive module; an initialization module connected to control terminal of drive module and first terminal of light emitting module.Type: GrantFiled: July 6, 2022Date of Patent: August 8, 2023Assignee: Xiamen Tianma Microelectronics Co., Ltd.Inventors: Qingjun Lai, Yihua Zhu
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Patent number: 11721281Abstract: Provided is a pixel circuit capable of preventing slight light emission of an organic EL element due to leakage current from a driving transistor. Provided is a pixel circuit including: a light-emitting element that emits light at luminance corresponding to an amount of current; a first capacitance, which is a metal insulator metal (MIM) capacitance; and a second capacitance, which is a metal insulator semiconductor (MIS) capacitance disposed in parallel to the light-emitting element.Type: GrantFiled: November 14, 2018Date of Patent: August 8, 2023Assignee: Sony Semiconductor Solutions CorporationInventors: Takayuki Sakaguchi, Takuma Fujii
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Patent number: 11723247Abstract: Disclosed herein is a display device. The display device includes a plurality of data lines to supply data signals, a plurality of pixels each including a light-emitting element, a first transistor to control current flowing through the light-emitting element, and a second transistor connected between the first transistor and one of the plurality of data lines, and a conductive pattern disposed on and connected to the second transistor through a first contact hole. The data line is disposed on a layer different from that of the bridge pattern, and is connected to the bridge pattern through a second contact hole. The first contact hole and the second contact hole overlap each other, when viewed on a plane.Type: GrantFiled: February 8, 2019Date of Patent: August 8, 2023Assignee: Samsung Display Co., Ltd.Inventors: Soon Dong Kim, Jin Wook Yang
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Patent number: 11711951Abstract: A display device includes: a plurality of pixels each including a driving thin film transistor and a storage capacitor, wherein each of the pixels further includes: a driving semiconductor layer including a driving channel region, a driving source region, and a driving drain region; a first electrode layer, a portion of the first electrode layer overlapping the driving channel region; a second electrode layer overlapping the first electrode layer; a node connection line having a first side connected to the first electrode layer; a pixel electrode overlapping the first electrode layer and the second electrode layer; and a shielding layer between the first electrode layer and the pixel electrode and overlapping the first electrode layer, the node connection line, and the pixel electrode.Type: GrantFiled: January 25, 2021Date of Patent: July 25, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seungkyu Lee, Taehoon Kwon, Byungsun Kim
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Patent number: 11710442Abstract: A gate driving circuit includes a plurality of unit stages connected to each other, wherein each of the plurality of unit stages includes a first transistor having a lower gate electrode, an upper gate electrode disposed on the lower gate electrode, an active layer disposed between the lower gate electrode and the upper gate electrode, a first electrode contacting a first portion of the active layer, and a second electrode contacting a second portion of the active layer, a first capacitor defined by a first region in which the lower gate electrode and the upper gate electrode overlap, and a second capacitor defined by a second region in which the upper gate electrode and the first electrode overlap, wherein the upper gate electrode and the lower gate electrode are electrically coupled to each other in the first region where the upper gate electrode and the lower gate electrode overlap to form the first capacitor.Type: GrantFiled: September 22, 2021Date of Patent: July 25, 2023Assignee: Samsung Display Co., Ltd.Inventors: Junhong Na, Kangnam Kim, Sung-Hoon Lim, Woogeun Lee, Kyu-Sik Cho
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Patent number: 11710454Abstract: An electro-optical device includes one or more control lines that include a scanning line, a data line and a pixel circuit. The pixel circuit has a drive transistor, a write-in transistor with a gate which is electrically connected to the scanning line, a light-emitting element that emits light at a brightness that depends on the size of a current that is supplied through the drive transistor, and a control line which overlaps the gate of the drive transistor when viewed from a direction that is perpendicular to a surface of a substrate on which the pixel circuit is formed is included in the one or more control lines.Type: GrantFiled: July 7, 2022Date of Patent: July 25, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Takashi Toya, Takehiko Kubota
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Patent number: 11705066Abstract: A pixel of display device includes a light emitting element, a first transistor coupled between first power source and a second node and having a gate electrode connected to a first node N1, and the first transistor being configured to control a driving current supplied to the light emitting element in response to a voltage of the first node, a first capacitor including one electrode connected to the first node and another electrode connected to a third node, a second transistor coupled between the third node and a data line, a third transistor coupled between the first node and the second node, a fourth transistor coupled between the first node and an initialization power source, a fifth transistor coupled between a reference power source and the third node, and an eighth transistor coupled between a fourth node and an anode initialization power source.Type: GrantFiled: August 11, 2022Date of Patent: July 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jang Mi Kang, Jun Hyun Park, Min Jae Jeong
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Patent number: 11705068Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a lower substrate including a display area and a non-display area surrounding the display area, wherein a plurality of pixels are formed in the display area. The OLED display also includes an embedded circuit formed in the configured to apply a plurality of signals to the pixels, and an initialization wiring formed in the non-display area and configured to apply an initialization voltage to each of the pixels. The initialization circuit is formed in a layer so as to at least partially overlap with the area of the embedded circuit.Type: GrantFiled: July 20, 2021Date of Patent: July 18, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Chang-Soo Pyon
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Patent number: 11705087Abstract: The present invention provides a display device. The display device includes a timing controller, a data register, a source driver, and a display panel. A portion of a vertical effective display column data in a vertical idle period is output through the data register, which can increase a sum of charging time of a pixel column of an entire frame of images. Moreover, an N/2th horizontal idle period to the Nth horizontal idle period are adjusted to improve display uniformity of an upper half screen and a lower half screen.Type: GrantFiled: May 20, 2020Date of Patent: July 18, 2023Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Xiang Gao
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Patent number: 11698704Abstract: A display device includes a display panel and a lower member disposed under the display panel. The lower member includes a support layer, a digitizer, a flexible circuit board, and a metal layer. The digitizer is disposed under the support layer having an insulating property. The flexible circuit board is connected to the digitizer. The metal layer is disposed under the digitizer, and an opening is defined through the metal layer to correspond to the flexible circuit board.Type: GrantFiled: March 30, 2022Date of Patent: July 11, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Bugyoon Yoo, Yunjae Kim, Chang-Kil Lee
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Patent number: 11699392Abstract: A display device includes a display element emitting a light by a current flowing, a drive transistor configured to control the current flowing through the display element, and a plurality of diode connection transistors connected in series to a source side of the drive transistor, and a source of any on the drive transistor or the plurality of diode connection transistors is connected to a back gate of the drive transistor.Type: GrantFiled: March 27, 2018Date of Patent: July 11, 2023Assignee: SHARP KABUSHIKI KAISHAInventor: Takayuki Nishiyama
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Patent number: 11699394Abstract: A pixel circuit, a driving method thereof and a display device are disclosed. The pixel circuit includes: a reset sub-circuit, a drive sub-circuit, a write sub-circuit, a compensation sub-circuit, a light-emitting control sub-circuit and a light-emitting element. The drive transistor is in the on-bias state in the reset period; the write sub-circuit is configured to write a data voltage of the data voltage terminal into the drive sub-circuit; the compensation sub-circuit is configured to compensate a threshold voltage of the drive transistor in the drive sub-circuit; the light-emitting control sub-circuit is configured to transmit a drive current, generated by the drive sub-circuit under action of the first voltage terminal, the second voltage terminal and the data voltage written into the drive sub-circuit, to the light-emitting element; and the light-emitting element is configured to emit light according to the drive current.Type: GrantFiled: July 27, 2022Date of Patent: July 11, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Chengchung Yang
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Patent number: 11694614Abstract: A display device includes: a substrate including a first pixel region, at least one second pixel region having a smaller area than the first pixel region, the at least one second pixel region being disposed adjacent to the first pixel region, and a peripheral region surrounding the first pixel region and the second pixel region; first and second pixels respectively provided in the first and second pixel regions; first and second lines respectively connected to the first and second pixels; a dummy line connected to one of the first and second lines to extend to the peripheral region; and a first dummy part including a dummy pixel connected to the dummy line in the peripheral region.Type: GrantFiled: September 13, 2021Date of Patent: July 4, 2023Assignee: Samsung Display Co., Ltd.Inventors: Yang Wan Kim, Su Jin Lee, Sun Ja Kwon, Byung Sun Kim, Hyun Ae Park, Hyung Jun Park, Jae Yong Lee, Yu Jin Jeon
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Patent number: 11694606Abstract: A display device with sensing element includes a substrate having a disposing surface, a plurality of display elements, at least one sensing element, and at least one lighting adjustment element. The display elements are disposed above the disposing surface to present an image. The at least one sensing element disposed above the disposing surface to sense a light brightness projected toward either side of the substrate. The at least one light adjustment element is in signal transmittable connection with the display elements and the at least one sensing element. The at least one light adjustment element adjusts a plurality of control signals inputted into the display elements to determine a contrast of the image.Type: GrantFiled: November 18, 2021Date of Patent: July 4, 2023Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wen-Yu Kuo, Wei-Chung Chen, Yi-Hsiang Huang, Yu-Hsiang Liu
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Patent number: 11696468Abstract: A display apparatus includes: a display element configured to emit light; a first refractive layer on the display element and having an opening corresponding to the display element; a light extraction pattern located inside the opening of the first refractive layer; and a second refractive layer on the first refractive layer, the second refractive layer covering the first refractive layer and the light extraction pattern.Type: GrantFiled: December 27, 2021Date of Patent: July 4, 2023Assignee: Samsung Display Co., Ltd.Inventors: Chiwook An, Soonil Jung, Sanghyun Choi
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Patent number: 11688337Abstract: A bootstrap circuit includes a first transistor including a gate electrode, a first and a second electrodes, a capacitor connected between the gate electrode and the second electrode, and a second transistor connected to the gate electrode. In a first period, the second transistor is turned on and the gate electrode is supplied with a first analog voltage, the first transistor is turned on, and the second electrode is supplied with a precharge voltage smaller than the first analog voltage from the first electrode. In a second period, the second transistor is turned off, the first electrode is supplied with a second analog voltage, the capacitor supplies a third analog voltage to the gate electrode in response to the first analog voltage and the second analog voltage, and the second electrode is supplied with the second analog voltage from the first electrode.Type: GrantFiled: March 17, 2022Date of Patent: June 27, 2023Assignee: JAPAN DISPLAY INC.Inventors: Kenji Harada, Tetsuo Morita
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Patent number: 11687182Abstract: A display apparatus is provided. The display apparatus includes an array substrate, and includes control devices, light emitting diodes (LEDs) and an electrode pattern disposed on the array substrate. The LED includes first and second semiconductor layers, and includes a light emitting layer disposed between the first and second semiconductor layers. The electrode pattern includes first electrodes, second electrodes and touch driving signal lines. Each first electrode is electrically connected with the first semiconductor layer of at least one of the LEDs. Each second electrode is electrically connected with the second semiconductor layer of one of the LEDs and one of the control devices. The touch driving signal lines are respectively disposed between adjacent first electrodes. At least an edge of each first electrode is adjacent to a line section of the touch driving signal lines.Type: GrantFiled: January 4, 2022Date of Patent: June 27, 2023Assignee: Au Optronics CorporationInventors: Tzu-Yi Tsao, Pin-Miao Liu
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Patent number: 11688347Abstract: A pixel circuit includes a driving circuit, a first control circuit and a second control circuit. The driving circuit is configured to receive a data signal in response to a scan signal, and generate, in response to a first enable signal, a driving signal according to a first voltage and the data signal. The first control circuit is configured to: receive a first input signal in response to a first control signal, and transmit a third input signal in response to the first input signal; and receive a second input signal in response to a second control signal, and transmit a second enable signal in response to the second input signal. The second control circuit is configured to transmit the driving signal to an element to be driven in response to one of the third input signal and the second enable signal.Type: GrantFiled: November 3, 2020Date of Patent: June 27, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Li Xiao, Haoliang Zheng, Hao Chen, Minghua Xuan, Dongni Liu, Seungwoo Han, Liang Chen, Jiao Zhao, Xue Dong
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Patent number: 11682340Abstract: A sub-pixel circuit, and an active electroluminescence display and a driving method thereof are provided. The sub-pixel circuit includes at least one electroluminescence device, and at least one first driving transistor or at least one second driving transistor and at least one third driving transistor coupled with the at least one electroluminescence device. A cathode of the electroluminescence device is coupled with a power source, an anode of the electroluminescence device is coupled with an output terminal of the first driving transistor, an input terminal of the first driving transistor is coupled with a signal line, and a control terminal of the first driving transistor is coupled with a scan line. Alternatively, the anode of the electroluminescence device is coupled with an output terminal of the second driving transistor, an input terminal of the second driving transistor is coupled with an output terminal of the third driving transistor.Type: GrantFiled: September 30, 2019Date of Patent: June 20, 2023Assignee: CHONGQING KONKA PHOTOELECTRIC TECHNOLOGY RESEARCH INSTITUTE CO., LTD.Inventor: Shisong Zheng
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Patent number: 11682345Abstract: A display device according to an embodiment of the present disclosure is provided. The display device comprises a light emitting diode, a first transistor connected between an initialization power source and an anode of the light emitting diode and having a gate electrode connected to an initialization line, and an initialization driver for supplying an initialization signal to the initialization line. The initialization driver supplies the initialization signal every frame when driven at a first frequency and supplies the initialization signal every set of two or more frames when driven at a second frequency different from the first frequency.Type: GrantFiled: July 8, 2022Date of Patent: June 20, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jin Hee Jang, Kyong Hwan Oh, Jae Sic Lee
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Patent number: 11683972Abstract: The present disclosure discloses a method for manufacturing a light-emitting device using laser etching including: a first light-emitting layer forming step for depositing a first light-emitting layer on an surface of a hole transport layer deposited on an upper surface of an anode substrate; a first light-emitting device forming step for etching the first light-emitting layer to form a first light-emitting device; a second light-emitting layer depositing step for depositing a second light-emitting layer on a region including the upper surface of the hole transport layer; a second light-emitting device forming step for etching the second light-emitting layer to form a second light-emitting device; a third light-emitting layer depositing step for depositing a third light-emitting layer on a region including the upper surface of the hole transport layer; and a third light-emitting device forming step for etching the third light-emitting layer to form a third light-emitting device.Type: GrantFiled: January 28, 2021Date of Patent: June 20, 2023Assignee: Kyonggi University Industry & Academia Cooperation FoundationInventor: Sang Hyun Ju
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Patent number: 11682334Abstract: A driving controller includes: a grayscale determiner, which determines a current grayscale of input image data, a deterioration time determiner, which determines a first deterioration time for the current grayscale corresponding to an accumulated deterioration degree, a current deterioration degree calculator, which calculates a second deterioration time by summing the first deterioration time and a calculation period, and calculates a current deterioration degree for the current grayscale according to the second deterioration time, and an image compensator, which compensates the input image data based on the current deterioration degree.Type: GrantFiled: July 12, 2022Date of Patent: June 20, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seokha Hong, Joon-Chul Goh, Dongjoon Kwag, Jaesung Bae, Young-Soo Hwang
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Patent number: 11676535Abstract: A pixel of a display device includes a light-emitting diode and a pixel circuit that provides a current corresponding to a data signal to the light-emitting diode in response to a plurality of scan signals and a light emission control signal. The light emission control signal includes a first section and a second section, the second section includes a light-emission-on section and a light-emission-off section, the light emission control signal has an active level in the light-emission-on section and has an inactive level in each of the first section and the light-emission-off section, and the light-emission-on section and the light-emission-off section of the light emission control signal may vary depending on a light emission ratio of a dimming mode.Type: GrantFiled: January 27, 2022Date of Patent: June 13, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Hyeon Jeon, Donggyu Lee, Jin-Wook Yang
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Patent number: 11678542Abstract: An organic light emitting diode (OLED) display device includes a first transistor including a gate electrode coupled to a first node, a second transistor including a gate receiving a first scan signal, a third transistor including a gate receiving the first scan signal, a fourth transistor including a gate receiving a second scan signal, a fifth transistor including a gate receiving the second scan signal, a sixth transistor including a gate receiving a third scan signal, a seventh transistor including a gate receiving an emission signal, a first capacitor including a first electrode coupled to a line of a first power supply voltage and a second electrode coupled to a second node, a second capacitor including a first electrode coupled to the second node and a second electrode coupled to the first node, and the OLED including an anode and a cathode coupled to a second power supply voltage.Type: GrantFiled: February 17, 2021Date of Patent: June 13, 2023Assignee: Samsung Display Co., Ltd.Inventor: Jeon Kyoo Kim
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Patent number: 11676538Abstract: An electronic device includes a light emitting unit, a current source, voltage comparator, and an emission control unit. The voltage comparator is configured to receive a voltage data and a ramp signal and output a comparison signal according to the voltage data and the ramp signal. The emission control unit is configured to output a driving current to the light emitting unit according to the supply current, the emission enable signal, and the comparison signal. The ramp signal is a first ramp signal during a first frame, and the ramp signal is a second ramp signal during a second frame after the first frame. The emission control unit is configured to be operated in a first mode based on the first ramp signal, and the emission control unit is configured to be operated in a second mode based on the second ramp signal.Type: GrantFiled: July 12, 2022Date of Patent: June 13, 2023Assignee: Innolux CorporationInventors: Kazuyuki Hashimoto, Hidetoshi Watanabe
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Patent number: 11675241Abstract: According to an aspect, a display device includes: a substrate; a display region; a peripheral region; signal lines; terminals; wires coupling the terminals and the signal lines in the peripheral region; and first and second metal layers in different layers perpendicularly to the substrate and an insulating film in the peripheral region. The peripheral region includes: a first wiring region, in which the wires are electrically coupled to the signal lines; a second wiring region between the first wiring region and the terminals, and in which at least one or more wires pass through the first and second metal layers; and a third wiring region between the first and second wiring regions, and in which the wires extend in a second direction intersecting the first direction. The third wiring region includes contacts coupling the first and second metal layers, and a virtual line connecting the contacts has a curved shape.Type: GrantFiled: May 2, 2022Date of Patent: June 13, 2023Assignee: Japan Display Inc.Inventors: Gen Koide, Hiroyuki Abe, Kazune Matsumura
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Patent number: 11676548Abstract: The disclosure discloses a light source unit, a backlight module and a display device, wherein the light source unit comprises a printed circuit board and a plurality of light source groups, the plurality of light source groups are arranged on the printed circuit board, and each light source group at least comprises a red light source, a green light source and a blue light source; the plurality of light source groups are divided into a plurality of regions, and each region is independently controlled. According to the disclosure, the light source groups are divided into regions, and the display signals of the light source groups in each region are controlled through independent control switches, so that the backlight LED light source can be lighted regionally in high brightness and high color gamut region, and the energy consumption is reduced.Type: GrantFiled: August 20, 2019Date of Patent: June 13, 2023Assignee: Shenzhen TCL New Technology Co., Ltd.Inventors: Minna Yang, Jianlin Li
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Patent number: 11670246Abstract: A display panel and a method for driving the same, and a display device are provided. The display panel includes a light emitting element and a pixel circuit that includes a data writing module configured to provide a data signal and an adjusting voltage, a driving module configured to provide a driving current to the light emitting element and including a driving transistor, and a compensation module configured to compensate a threshold voltage of the driving transistor. An operation process of the display panel includes a period of a data writing frame during which the pixel circuit executes a data writing phase during which the data writing module writes the data signal and a light emitting phase, and a period of a holding frame during which the pixel circuit executes a reset and adjustment phase during which the data writing module writes the adjusting voltage and the light emitting phase.Type: GrantFiled: December 29, 2021Date of Patent: June 6, 2023Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Nana Xiong, Jujian Fu
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Patent number: 11672149Abstract: The present disclosure provides an OLED display panel and a method for detecting the OLED display panel, and a display device. The OLED display panel includes a base substrate including a display area and a non-display area surrounding the display area and having a first region adjacent to the display area. The display area includes a drive signal line and a power supply voltage signal line both extending from the display area to the first region. The drive signal line includes, in the first region, a first section of wiring at an anode layer, the power supply voltage signal line includes, in the first region, a second section of wiring at a gate metal layer, and parts of the drive signal line and the power supply voltage signal line in the display area are located at a source-drain metal layer.Type: GrantFiled: June 24, 2020Date of Patent: June 6, 2023Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Guangyao Li, Dongfang Wang, Jun Wang, Haitao Wang, Qinghe Wang, Ning Liu, Wei Li, Yingbin Hu, Yang Zhang
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Patent number: 11670247Abstract: A display panel and a method for driving the same, and a display device are provided. The display panel includes a light emitting element and a pixel circuit that includes a data writing module configured to provide a data signal and an adjusting voltage, a driving module configured to provide a driving current to the light emitting element and including a driving transistor, and a compensation module configured to compensate a threshold voltage of the driving transistor. An operation process of the display panel includes a period of a data writing frame during which the pixel circuit executes a data writing phase during which the data writing module writes the data signal and a light emitting phase, and a period of a holding frame during which the pixel circuit executes a reset and adjustment phase during which the data writing module writes the adjusting voltage and the light emitting phase.Type: GrantFiled: January 3, 2022Date of Patent: June 6, 2023Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Nana Xiong, Jujian Fu
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Patent number: 11663981Abstract: An organic light-emitting display device includes a data driver which supplies a data voltage to a data line of each sub-pixel, and senses a driving voltage of each sub-pixel through each sensing line connected to a sub-pixel, and generates sensed data based on the driving voltage of each sub-pixel. Further, the organic light-emitting display device includes a controller that generates a reference parameter for compensating for each of operation characteristics of each sub-pixel using the sensed data generated from the data driver, and compensates for image data based on the reference parameter and outputs the compensated image data. The controller controls the gate driver and the data driver so that sensed data is additionally generated, and compensates for and outputs the image data based on a compensation parameter extracted based on the additionally generated sensed data, thereby controlling execution of external compensation based on temperature and deterioration characteristics.Type: GrantFiled: December 21, 2021Date of Patent: May 30, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Sanghyun Park, Yung Choi
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Patent number: 11663988Abstract: A display panel driving method, a drive circuit thereof, and a display device. The method comprises: when determined that the picture to be displayed belongs to a high power consumption display picture, providing a touch control and display integrated circuit and power supply management circuit of the display panel with a second reference voltage that is amplified by a first reference voltage and that is provided by an external voltage source, and driving each pixel to ensure the normal display of the high power consumption display picture; and when determined that the picture to be displayed belongs to a low power consumption display picture, directly providing the first reference voltage to the touch control and display integrated circuit and power supply management circuit of the display panel, and driving each pixel within the display panel so as to ensure the normal display of the low power consumption picture.Type: GrantFiled: February 9, 2021Date of Patent: May 30, 2023Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yuanyuan Liu, Xuanxuan Qiao, Zhenzhou Xing, Xiaozhe Zhang, Jianjun Wang
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Patent number: 11665947Abstract: A display panel includes a first unit pixel including a first pixel electrode for emitting red light, a first pixel electrode for emitting blue light, and a first pixel electrode for emitting green light. A second unit pixel neighbors the first unit pixel and includes a second pixel electrode for emitting red light, a second pixel electrode for emitting blue light, and a second pixel electrode for emitting green light. The first unit pixel further includes a first red emission layer disposed on the first pixel electrode for emitting red light. The second unit pixel further includes a second red emission layer disposed on the second pixel electrode for emitting red light. The first red emission layer is spaced apart from the second red emission layer in the first direction.Type: GrantFiled: July 30, 2020Date of Patent: May 30, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sunghwan Kim, Chulkyu Kang, Soohee Oh, Dongsun Lee