Electroluminescent Patents (Class 345/76)
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Patent number: 12205531Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.Type: GrantFiled: April 25, 2023Date of Patent: January 21, 2025Assignee: Apple Inc.Inventors: Chin-Wei Lin, Hung Sheng Lin, Vasudha Gupta, Shinya Ono, Tsung-Ting Tsai, Shyuan Yang
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Patent number: 12205521Abstract: The invention relates to various aspects of a ?-LED or a ?-LED array for augmented reality or lighting applications, in particular in the automotive field. The ?-LED is characterized by particularly small dimensions in the range of a few ?m.Type: GrantFiled: February 22, 2022Date of Patent: January 21, 2025Assignee: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Jens Richter, Kilian Regau, Patrick Hoerner
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Patent number: 12198628Abstract: A light emitting display device includes: a light emitting element including an anode connected to a first line; a first transistor; a second transistor including a first electrode connected to a data line, and a second electrode connected to a gate electrode of the first transistor; a third transistor including a first electrode connected to the first line, and a second electrode connected to a first electrode of the first transistor; a fourth transistor including a second electrode connected to the gate electrode; a sixth transistor including a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a second line; a first capacitor including a first electrode connected to the gate electrode and a second electrode connected to the second electrode of the first transistor; and a second capacitor including a second electrode connected to the second electrode of the first transistor.Type: GrantFiled: July 27, 2023Date of Patent: January 14, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung Hoon Chung, Byung Chang Yu
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Patent number: 12198641Abstract: An electronic device is provided. The electronic device includes an optical lens, a display module configured to display a screen through the optical lens, a sensor module configured to measure a temperature of the display module at one or more positions, and memory, and at least one processor. The instructions that, when executed by the at least one processor, cause the electronic device to control the display module to display a designated screen, obtain at least one temperature respectively corresponding to the one or more positions from the sensor module while displaying the designated screen, and based on the obtained at least one temperature, change a luminance of at least a part of the designated screen or change a display area of the display module based on the obtained at least one temperature.Type: GrantFiled: November 22, 2023Date of Patent: January 14, 2025Assignee: Samsung Electronics Co., Ltd.Inventors: Seungjoo Lee, Dongil Son, Seungnyun Kim, Jongmin Yoon, Gisoo Lim, Kyusik Choi
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Patent number: 12198631Abstract: Disclosed is a pixel circuit. The pixel circuit includes: a driving element connected to a first node, a second node, and a third node; a first switch element configured to be turned on to supply a data voltage to a fourth node; a second switch element configured to be turned on to supply a reference voltage or an initialization voltage to the fourth node; a third switch element configured to be turned on to connect the first node to the second node; a fourth switch element configured to be turned on to supply the reference voltage to the third node; a fifth switch element configured to be turned on a fourth gate signal to supply a pixel driving voltage to the first node; and a sixth switch element configured to be turned on to connect the third node to a fifth node.Type: GrantFiled: September 27, 2023Date of Patent: January 14, 2025Assignee: LG Display Co., Ltd.Inventors: Yong Won Lee, Ji Soo Yeom
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Patent number: 12198625Abstract: The present inventive concept provides a display device including a pixel unit which includes pixels, a sensing unit connected to the pixels through sensing lines, a first power voltage generator connected to the pixels through a first power line and generating a first power voltage for driving the pixels, a second power voltage generator connected to the pixels through the first power line and generating a second power voltage for sensing the pixels, and a timing controller selectively controlling operations of the first power voltage generator and the second power voltage generator according to a driving method of the pixel unit, and a method driving the same.Type: GrantFiled: April 21, 2023Date of Patent: January 14, 2025Assignee: Samsung Display Co., Ltd.Inventors: Sang Hyun Lee, Dae Sik Lee, Keun Oh Kang, Si Duk Sung, Song Yi Han
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Patent number: 12197674Abstract: A touch detection drive circuit in an electronic device inputs a touch excitation signal to a touch electrode, and receives a detection signal of the touch electrode. An isolation power supply circuit receives the touch excitation signal and a primary power supply voltage; based on the touch excitation signal in a non-touch detection phase, short-circuits a first reference ground and a second reference ground, stores the primary power supply voltage, and transmits the primary power supply voltage to the touch detection drive circuit; and in a touch detection phase, disconnects the first reference ground from the second reference ground and discharges to the touch detection drive circuit.Type: GrantFiled: September 14, 2021Date of Patent: January 14, 2025Assignee: Huawei Technologies Co., Ltd.Inventors: Zhengyuan Hu, Fengxin Wang, Jiacong Zhang
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Patent number: 12198634Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a driving circuit, a light-emitting element, a first light-emitting control circuit, a first control circuit, a second control circuit, a third control circuit, a data writing-in circuit and an energy storage circuit. The first control circuit is configured to control to connect the first voltage line and a first end of the light-emitting element under the control of the first control signal; the second control circuit is configured to control to connect the reference voltage line and the second end of the light-emitting element under the control of a second control signal; the third control circuit is configured to control to connect the first end of the energy storage circuit and the control end of the driving circuit under the control of a third control signal.Type: GrantFiled: September 29, 2021Date of Patent: January 14, 2025Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Teng Chen, Dawei Shi, Wentao Wang, Tianlong Zhao, Liang Zhou, Shuaizhuo Liu, Chuanyong Li
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Patent number: 12198621Abstract: The present disclosure provides a pixel circuit, a driving method and a display device. The pixel circuit includes a first reset circuit and a driving circuit, the first reset circuit is respectively electrically connected to a first light emitting control line, a reset control line, a first reset voltage line and a first end of the driving circuit, and is configured to write a first reset voltage provided by the first reset voltage line into the first end of driving circuit under the control of a first light emitting control signal provided by the first light emitting control line and a reset control signal provided by the reset control line; the driving circuit is configured to connect the first end of the driving circuit and a second end of the driving circuit under the control of a potential of a control end of the driving circuit.Type: GrantFiled: June 23, 2021Date of Patent: January 14, 2025Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yao Huang, Tianyi Cheng
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Patent number: 12198632Abstract: A display device includes a pixel circuit configured to generate a driving current based on a data signal supplied to a data line, a first light-emitting stage configured to emit light based on the driving current, and including first light-emitting elements connected in parallel, a detector configured to detect voltages of respective ends of the first light-emitting stage, and a current compensator configured to compensate for a current flowing through the first light-emitting stage based on a first voltage difference between the voltages of the respective ends of the first light-emitting stage.Type: GrantFiled: November 14, 2023Date of Patent: January 14, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Won Jang, Seung Won Kuk, Myung Chul Kim
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Patent number: 12190806Abstract: A display panel including a pixel circuit and a light-emitting element, the pixel circuit including a driving transistor, a data writing transistor, a threshold compensation transistor, a first reset transistor, a bias transistor, and a light-emitting control module, the data writing transistor being electrically connected to a first terminal of the driving transistor, the threshold compensation transistor being connected in series between a gate of the driving transistor and a second terminal of the driving transistor, and configured to detect and self-compensate a threshold voltage deviation of the driving transistor, the first reset transistor and the bias transistor being electrically connected to the second terminal of the driving transistor, the light-emitting control module being connected in series with the driving transistor and the light-emitting element to control whether a driving current flows through the light-emitting element, the data writing transistor and the first reset transistor having thType: GrantFiled: December 16, 2022Date of Patent: January 7, 2025Assignee: Xiamen Tianma Display Technology Co., Ltd.Inventors: Shui He, Shanshan Zheng, Jinjin Yang, Jiansheng Zhong, Qiaoling Zhong
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Patent number: 12190784Abstract: A display device including a display panel and a display driving circuit to control the display panel are provided. The display driving circuit includes a light emitting control driver to input a light emitting signal for controlling the brightness of the display panel into the display panel. When a light emitting control signal including a plurality of pulses is input into the light emitting control driver to control the light emitting signal, and when the operating frequency of the light emitting control signal is changed, pulse widths corresponding to at least two pulses of pulses included in the light emitting control signal may be adjusted to differ from each other in a frame after the target time point to change the operating frequency.Type: GrantFiled: November 8, 2022Date of Patent: January 7, 2025Assignee: Samsung Electronics Co., Ltd.Inventors: Juseok Lee, Minwoo Lee, Seoyoung Lee
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Patent number: 12190822Abstract: An array substrate is provided. The array substrate includes K number of columns of first pads. A respective first pad is connected to an anode of a light emitting element, a second electrode of a fifth transistor, and a second electrode of a sixth transistor. The K number of columns of first pads include a plurality of first-first pads in (2k-1)-th columns of the K columns and a plurality of second-first pads in (2k)-th columns of the K columns. A respective first-first pad and a respective second-first pad have different average line widths.Type: GrantFiled: September 30, 2022Date of Patent: January 7, 2025Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Mengqi Wang, Tiaomei Zhang, Zhengkun Li, Quanyong Gu
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Patent number: 12189238Abstract: A backlight unit includes a substrate comprising a first area having light source blocks and a second area having light source blocks, and a light source driver disposed on at least one side of the substrate and electrically connected to the light source blocks of each of the first and second areas through each of first and second sensing lines. The first sensing lines electrically connected to the light source blocks of the first area have a first resistance value, and the second sensing lines electrically connected to the light source blocks of the second area have a second resistance value.Type: GrantFiled: April 7, 2020Date of Patent: January 7, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dae Sik Lee, Sung Chul Hong, Jun Pyo Lee, Ji Eun Lee, Song Yi Han
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Patent number: 12190829Abstract: An organic light emitting diode display device includes: a timing controlling unit generating an image data, a data control signal and a gate control signal; a data driving unit generating a data voltage using the image data and the data control signal and including an output channel outputting one of the data voltage and a pre-charge voltage; a gate driving unit generating a gate1 voltage, a gate2 voltage, a gate3 voltage, an emission1 voltage and an emission2 voltage using the gate control signal; a display panel including a subpixel, a gate line, a data line and a reset line, the subpixel including first to seventh transistors, a storage capacitor and a light emitting diode; and a selecting unit connecting the output channel to one of the data line and the reset line.Type: GrantFiled: December 6, 2022Date of Patent: January 7, 2025Assignee: LG Display Co., Ltd.Inventors: Joon-Ki Kim, Ji-Eun Lee
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Patent number: 12190812Abstract: A display device that has high display quality is provided. A highly reliable display device is provided. A display device with low power consumption is provided. A light-emitting element is electrically connected to one of a source and a drain of a first transistor. The other of the source and the drain of the first transistor is electrically connected to one of a source and a drain of a second transistor. A gate electrode of the second transistor is electrically connected to one of a source and a drain of a third transistor. A semiconductor layer of the second transistor and a semiconductor layer of the third transistor each include indium, zinc and a third metal. The ratio of the number of indium atoms to the total number of the indium atoms, zinc atoms, and atoms of the third metal in the semiconductor layer of the second transistor is higher than or equal to 30 atomic % and lower than or equal to 100 atomic %.Type: GrantFiled: April 11, 2022Date of Patent: January 7, 2025Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Kenichi Okazaki, Koji Kusunoki
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Patent number: 12190820Abstract: The present disclosure provides a pixel circuit, a pixel driving method and a display device. The pixel circuit includes a first initialization circuit and a compensation circuit; the first initialization circuit is configured to write a first initial voltage into the driving control node under the control of an initial control signal; the compensation circuit is configured to control the driving control node to be connected to the first node under the control of a compensation control signal. The first initialization circuit or the compensation circuit includes an oxide thin film transistor; or, one of the first initialization circuit and the compensation circuit includes a low temperature polysilicon thin film transistor and an oxide transistor connected in series, and the other of the first initialization circuit and the compensation circuit includes an oxide thin film transistor.Type: GrantFiled: April 26, 2021Date of Patent: January 7, 2025Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Benlian Wang, Yao Huang, Weiyun Huang, Ming Hu
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Patent number: 12183268Abstract: A display device can include a light emitting element and a pixel circuit including a driving transistor; a first capacitor connected between the driving transistor and a first node; a first transistor connected between the first capacitor and a data line to operate based on a first scan signal; a first light emission transistor connected between the first capacitor and a reference voltage line to operate based on a light emission signal; and a second light emission transistor connected between the driving transistor and a low-potential voltage line to operate based on the light emission signal. The first scan signal sequentially includes a dummy scan signal section and driving scan signal section for turning on the first transistor, and the light emission signal includes a coupling period for turning on the first and second light emission transistors between the dummy scan signal section and the driving scan signal section.Type: GrantFiled: September 14, 2023Date of Patent: December 31, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Taehun Kim, Wookyu Sang, Moonsoo Chung
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Patent number: 12183265Abstract: A display device includes a plurality of light-emitting elements, and a control circuit configured to control drive of the light-emitting elements. The control circuit divides one frame period into a plurality of subframe periods having different lengths and controls light emission and non-emission of the light-emitting elements for each of the subframe periods.Type: GrantFiled: September 1, 2023Date of Patent: December 31, 2024Assignee: Japan Display Inc.Inventors: Kazunari Tomizawa, Kazuhiko Sako, Tsutomu Harada
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Patent number: 12185614Abstract: A display apparatus includes a substrate, a pixel layer including a plurality of display devices on the substrate, an encapsulating member encapsulating the pixel layer, a light modulating layer on the encapsulating member, a functional layer on the light modulating layer, and a bonding layer located between the light modulating layer and the functional layer and to bond the light modulating layer and the functional layer, where the light modulating layer has openings corresponding to the plurality of display devices, and where the bonding layer fills the openings and has a refractive index that is greater than a refractive index of the light modulating layer.Type: GrantFiled: July 15, 2020Date of Patent: December 31, 2024Assignee: Samsung Display Co., Ltd.Inventors: Changmok Kim, Kwanhee Lee, Jiwon Jung, Youngseo Choi
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Patent number: 12185585Abstract: An active matrix display is disclosed that includes a plurality of pixel circuits. Each of the pixel circuits includes a light-emitting element, at least two transistors, and a storage capacitor. An additional transistor is provided, which is configured for discharging of the storage capacitor. An active matrix display is also disclosed, having at least two drive circuits, wherein at least one of the pixel circuits is driven by a data driver of a first drive circuit is residing physically within a second drive circuit, or vice versa. Further, an active matrix is disclosed, wherein the timing of scan signals and updating of data signals is programmed in relation to the operation of a camera recording an image that is displayed on the active matrix display.Type: GrantFiled: August 11, 2023Date of Patent: December 31, 2024Assignee: STEREYO BVInventors: Robbie Thielemans, Vince Dundee
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Patent number: 12183282Abstract: A pixel driving circuit, a method for driving a display panel, and a display device are provided. The display panel includes pixel columns, each of the pixel columns includes pixel components. The pixel driving circuit includes pixel driving modules, a data line, first gating units, and second gating units. Each of the pixel driving modules is coupled to pixel components of adjacent two pixel columns of the pixel columns, any pixel component in each of the pixel columns is written in a driving voltage via a corresponding driving switch. A terminal of each of the first gating units and a terminal of each of the second gating units are respectively coupled to the data line, another terminal of each of the first gating units is coupled to a corresponding adjacent pixel component, another terminal of each of the second gating units is coupled to another corresponding adjacent pixel component.Type: GrantFiled: December 29, 2022Date of Patent: December 31, 2024Assignee: HKC CORPORATION LIMITEDInventors: Xiufeng Zhou, Xin Yuan, Haijiang Yuan
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Patent number: 12178103Abstract: A display device includes a pixel including light-emitting elements in which light emission luminance during a predetermined period is controlled by controlling a lighting period among the predetermined period, and light-emitting elements in which light emission luminance is controlled by controlling a current value.Type: GrantFiled: June 25, 2020Date of Patent: December 24, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Masafumi Ueno, Masayuki Takahashi
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Patent number: 12178094Abstract: In a display device, a first power supply voltage line includes a first trunk wiring line, a plurality of branch wiring lines, and a second power supply voltage line includes a second trunk wiring line. The first trunk wiring line includes a first portion and a second portion. A line width of the first portion is smaller than a line width of the second portion. A frame region in a frame region provided with the first portion includes a first irregular frame edge having an irregular shape.Type: GrantFiled: November 6, 2019Date of Patent: December 24, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Junichi Yamada, Naoki Ueda, Fumiyuki Kobayashi
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Patent number: 12175944Abstract: A display apparatus includes a display panel, a compensator, a controller, and a data driver. The compensator determines a degradation grayscale of a compensation region of the display panel. The degradation grayscale may be determined based on a driving time of at least one pixel in the compensation region and degradation data corresponding to the at least one pixel. The controller generates compensated image data for input image data based on the degradation grayscale. The data driver provides a data voltage to the at least one pixel based on the compensated image data.Type: GrantFiled: December 22, 2022Date of Patent: December 24, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seokgyu Ban, Wook Lee, Jaehoon Shin
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Patent number: 12175923Abstract: A display device including a scan line extending in a first direction, a sensing scan line extending in the first direction and spaced from the scan line, a data line extending in a second direction crossing the first direction, a sensing line extending in the second direction and spaced from the data line, a sensing enable signal line extending in the second direction and spaced from the data line and the sensing line, and a sub-pixel connected to the scan line, the sensing scan line, the data line, the sensing line, and the sensing enable signal line. The sub-pixel includes a plurality of light emitting elements between a first node and a second node, a first transistor configured to supply a driving current to the first node according to a voltage of a gate electrode, and a second transistor to control a connection between the first and second nodes.Type: GrantFiled: May 2, 2023Date of Patent: December 24, 2024Assignee: Samsung Display Co., Ltd.Inventors: Young Soo Hwang, Hyung Jin Kim
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Patent number: 12175934Abstract: An electro-optical device includes a scanning line, a data line intersecting with each other, a pixel circuit which is provided corresponding to the intersection thereof, and a wire. The pixel circuit includes a light emitting element, one transistor which controls a current flowing to the light emitting element, and the other transistor of which conduction state is controlled according to a scanning signal which is supplied to the scanning line between a gate node of the one transistor and the data line. The wire is provided between the data line and the one transistor.Type: GrantFiled: October 17, 2023Date of Patent: December 24, 2024Assignee: SEIKO EPSON CORPORATIONInventor: Shin Fujita
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Patent number: 12175938Abstract: The present disclosure provides a pixel circuit. The pixel circuit includes a light emitting element, an energy storage circuit, a driving circuit, a data writing-in circuit, a compensation control circuit, an initialization circuit and a light emitting control circuit. The compensation control circuit is configured to control to connect the control terminal of the driving circuit and the first terminal of the driving circuit under the control of a first control signal. The driving circuit is configured to generate a driving current for driving the light emitting element to emit light under the control of a potential of the control terminal of the driving circuit.Type: GrantFiled: November 11, 2021Date of Patent: December 24, 2024Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xuewei Tian, Bo Yang, Shuai Xie
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Patent number: 12175902Abstract: A detection method and a detection device for a display panel are provided. The detection method includes: performing a detection operation on pixel-driving circuits. The detection operation includes applying a gate voltage and a source voltage to a gate and a source of each driving transistor, to turn on a driving transistor; and sampling voltages at the sources. The detection operation is repeated n times, where in each repetition, the gate voltage is the sum of the gate voltage in the initial detection operation and an accumulative addition of a difference between the gate voltage and the sampled voltage in the previous detection operation, with n being a positive integer. Based on the sampled voltage of the driving transistor of each pixel-driving circuit obtained in the n-th repetition of the detection operation, it is determined whether the threshold voltage of the driving transistor in the pixel-driving circuit is abnormal.Type: GrantFiled: December 1, 2023Date of Patent: December 24, 2024Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Fan Tian
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Patent number: 12170057Abstract: A light-emitting circuit includes a first transistor, a second transistor, a light-emitting element, a first switching circuit, a second switching circuit, a first capacitor, a current source, and a third switching circuit. The first switching circuit, the second switching circuit, and the third switching circuit are synchronously turned on or synchronously turned off. This not only controls the current flowing through the first switching circuit through the first capacitor, the second switching circuit and the current source to the third power line, and but also controls the current flowing through the third switching circuit, the second transistor through the first capacitor, the second switching circuit and the current source flow to the third power line. Since the current passes through the first transistor and the second transistor, the current flowing through the light-emitting element is reduced, improving adverse effects of parasitic capacitance and wire resistance to the two transistors.Type: GrantFiled: December 17, 2023Date of Patent: December 17, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yamei Bai, Tianhong Wang
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Patent number: 12170038Abstract: A device includes a backplane and a plurality of elements arranged on the backplane. The plurality of elements form an irregular pattern. The backplane includes a plurality of circuits. The plurality of elements are coupled to the plurality of circuits by conductive vias that are regularly spaced.Type: GrantFiled: January 11, 2024Date of Patent: December 17, 2024Assignee: Pacific Light & Hologram, Inc.Inventors: Jonathan Seamus Blackley, Watson Brent Boyett, Sylvain Marcel Colin, Robin James Green, Stephen John Hart, Margaret H. Hsu, DeaGyu Kim, Mark Anthony Loya, Benjamin Francis Neil, Kamran Qaderi, Tina Qin, Jesus Manuel Caridad Ramirez, Jayakrishna Sashidharan, Asher Zelig Sefami, Sameer Sudhir Walavalkar, Joshua D. Wiensch
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Patent number: 12167646Abstract: A pixel includes a light emitting element including an anode and a cathode, a first transistor connected between the anode and a first power line and switched by a voltage of a node, a second transistor connected between the first transistor connected to the first power line and a data line and switched by a write scan signal, a third transistor connected between the node and the anode and switched by a compensation scan signal, and an insulating layer covering the second and third transistors. A first groove is defined in a portion of the insulating layer adjacent to the third transistor.Type: GrantFiled: March 31, 2022Date of Patent: December 10, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wonwoo Choi, Jaechung Kim, Jaeik Lim, In-Bae Kim
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Patent number: 12165579Abstract: An electroluminescent display device using a variable refresh rate (VRR) mode. The occurrence of a difference in luminance at a time point of a refresh rate change is reduced, thereby preventing viewers from perceiving the change of the refresh rate.Type: GrantFiled: October 11, 2023Date of Patent: December 10, 2024Assignee: LG Display Co., Ltd.Inventors: Moonsoo Chung, Wookyu Sang
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Patent number: 12167653Abstract: A display substrate and a manufacturing method therefor, and a display apparatus. The display substrate includes a base substrate, a second power line, a data signal line and a plurality of sub-pixels, wherein at least one sub-pixel includes a pixel driving circuit and a light emitting device connected to the pixel driving circuit, the pixel driving circuit is connected to the data signal line and the light emitting device is connected to the second power line; a semiconductor layer and a plurality of conducting layers, which are disposed at one side of the semiconductor layer away from the base substrate, are disposed on the base substrate, a first electrode is arranged on at least one conducting layer.Type: GrantFiled: May 31, 2021Date of Patent: December 10, 2024Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Can Zheng, Li Wang, Hao Zhang, Yipeng Chen, Ke Liu
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Patent number: 12165582Abstract: A display panel is provided. In the display panel, a width-to-length ratio of a sub-channel of a compensation transistor adjacent to a drive transistor is less than a width-to-length ratio of a channel of a first initialization transistor, so that an effect of an increase in an electrical potential of a gate of the drive transistor affected by an electrical leakage of the compensation transistor is canceled by an effect of a decrease in the electrical potential of the gate of the drive transistor affected by an electrical leakage of the first initialization transistor, so as to prevent an electrical leakage of each transistor from causing changes in the electrical potential of the gate of the drive transistor, thereby reducing a problem of the flickering display.Type: GrantFiled: May 13, 2022Date of Patent: December 10, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Kai Lu
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Patent number: 12165593Abstract: A display panel and a display device. The display panel comprises: a substrate, a display area (100) provided with at least one light-emitting signal line (E), at least one first reset signal line (R) and sub-pixels arranged in an array, at least one sub-pixel (P1, P2, P3) comprising: a light-emitting device (L) and a pixel circuit. The first reset signal line (R) is configured to provide a reset control signal for the pixel circuit, the light-emitting signal line is configured to provide a light-emitting control signal for the pixel circuit to provide a driving current. For the first reset signal line and the light-emitting signal line E connected to a same pixel circuit, the duration in which the signal of the light-emitting signal line is an invalid level signal is equal to the duration in which the signal of the first reset signal line is a valid level signal.Type: GrantFiled: July 21, 2022Date of Patent: December 10, 2024Assignees: Beijing BOE Technology Development Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Hongting Lu, Hang Dong, Xing Huang, Xingyu Chen, Lian Xiang, Yanping Ren, Xueying He, Changlong Yuan
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Patent number: 12159591Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.Type: GrantFiled: October 5, 2023Date of Patent: December 3, 2024Assignee: LG DISPLAY CO., LTD.Inventors: SeongHo Cho, DaeSung Jung, HwanJoo Lee, Haksu Kim
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Patent number: 12159587Abstract: A sensing circuit and a display device including the same. The sensing circuit includes: a data driver configured to supply data voltage, which is increased stepwise, to the data line during a sensing time; a gate driver configured to supply gate signals to the gate lines during the sensing time; and an analog-to-digital converter configured to convert a sensing voltage on the sensing line into digital data during the sensing time.Type: GrantFiled: October 16, 2023Date of Patent: December 3, 2024Assignee: LG Display Co., Ltd.Inventors: Do Young Jung, Byeong Seong So
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Patent number: 12159568Abstract: A pixel driving circuit, a driving method thereof, and a display panel are disclosed. A second transistor stores a threshold voltage of a first transistor in a first capacitor according to a second scan signal, so as to compensate an influence of the threshold voltage on a driving current. A fifth transistor makes a voltage difference between a first node and a second node irrelevant to a second voltage signal according to a fourth scan signal, so as to improve a current attenuation issue caused by a voltage drop during a signal transmission.Type: GrantFiled: April 22, 2022Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Bin Liu
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Patent number: 12154496Abstract: Disclosed are a display panel, a display device and a driving method. The display panel includes a plurality of sub-pixel units located in areas formed by the plurality of scanning signal lines and the plurality of data signal lines, and at least two adjacent sub-pixel units in the first direction and the second direction constitute a pixel island. A plurality of control units each corresponding to a sub-pixel unit row in the pixel island are provided. The control unit includes a control terminal, an input terminal and an output terminal. The control unit is configured to transmit a signal from the input terminal to the output terminal under control of a first signal transmitted by a control signal line corresponding to the control unit, and stop transmitting the signal from the input terminal to the output terminal under control of a second signal transmitted by the control signal line.Type: GrantFiled: February 26, 2021Date of Patent: November 26, 2024Assignees: BOE MLED TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shaolei Zong, Jigang Sun, Rui Liu, Xin Duan, Wei Sun, Junwei Zhang, Hongrun Wang, Fuqiang Li, Changfeng Sun, Hui Zhang, Xue Dong
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Patent number: 12153723Abstract: A system for providing an augmented reality, a virtual reality, and/or a mixed reality experience to a user includes a first display and a second display. The user views a real-world environment through the first display and the second display. The system includes a wearable visualization device that includes the first display and a fixed visualization device that includes the second display. The first display is configured to display a first layer of virtual features and the second display is configured to display a second layer of virtual features. The system includes a processor configured to generate the first layer of virtual features and the second layer of virtual features. The processor is configured to operatively communicate with the wearable visualization device and the fixed visualization device to coordinate presentation of the first layer of virtual features and the second layer of virtual features.Type: GrantFiled: October 17, 2017Date of Patent: November 26, 2024Assignee: Universal City Studios LLCInventors: Gregory Shellman Hall, David Gerard Majdali
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Patent number: 12150340Abstract: Embodiments disclose a display panel and a display device including the display panel. The display panel includes a first area in which a plurality of first pixels are disposed, a second area including a pixel area in which a plurality of second pixels are disposed and a plurality of light-transmitting areas disposed between the plurality of second pixels, and a polarizing plate including a plurality of first light-transmitting patterns disposed in the plurality of light-transmitting areas, wherein, in the polarizing plate, an area in which the first light-transmitting patterns are formed has a higher light transmittance than a remaining area in which the first light-transmitting patterns are not formed.Type: GrantFiled: June 25, 2021Date of Patent: November 19, 2024Assignee: LG Display Co., Ltd.Inventors: Jung Hun Choi, Sung Jin Park, Juhn Suk Yoo
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Patent number: 12148384Abstract: Display devices are disclosed. In one example, a display device includes light emitting element groups each including light emitting element units, each of the light emitting element units including first, second and third light emitting elements. Each of the light emitting element groups includes first drive circuits that drive the first light emitting elements, second drive circuits that drive the second light emitting elements, and third drive circuits that drive the third light emitting elements, and in each of the light emitting element groups, the number of first drive circuits is equal to the number of first light emitting elements, the number of second drive circuits is less than the number of second light emitting elements, and the number of third drive circuits is less than the number of third light emitting elements.Type: GrantFiled: July 27, 2023Date of Patent: November 19, 2024Assignee: Sony Group CorporationInventor: Tetsuo Minami
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Patent number: 12148373Abstract: A display device includes a display panel, a scan driver, a data compensator, and a data driver. The display panel includes a first area and a second area distinguished from each other along a scan direction. Each of the first and second areas include pixels. The scan driver is configured to sequentially provide scan signals to the display panel along the scan direction. The data compensator is configured to: detect a pattern in which a difference between adjacent grayscale values in image data is greater than a reference value; and generate compensated image data by compensating for grayscale values corresponding to the second area in the image data based on the pattern corresponding to the first area. The data driver is configured to: generate data signals based on the compensated image data; and provide the data signals to the display panel.Type: GrantFiled: May 3, 2022Date of Patent: November 19, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Se Byung Chae, Weon Jun Choe
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Patent number: 12150336Abstract: The present disclosure relates to a display device. More particularly, the present disclosure relates to a display device capable of enhancing efficiency of light emitted from a light-emitting element. A display device according to an embodiment includes a substrate on which areas of pixels composed of multiple subpixels are arranged, a circuit element layer in which circuit elements constituting the multiple subpixels are provided, a light-emitting element layer in which light-emitting elements constituting the multiple subpixels are provided, and a lens placed corresponding to the light-emitting element.Type: GrantFiled: December 8, 2020Date of Patent: November 19, 2024Assignee: LG Display Co., Ltd.Inventors: Jungeun Lee, Chulho Kim, Namkook Kim, Sungwoo Choi, Hwankeon Lee, Youngkyun Moon, Jihun Lee
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Patent number: 12144226Abstract: A display device includes a substrate including a display area and a pad area; a thin film transistor in the display area; a light emitting film layer on the thin film transistor; an encapsulation layer on the light emitting film layer; a touch buffer layer on the encapsulation layer; a bridge, first touch electrodes and second touch electrodes disposed on the touch buffer layer; a touch insulating film disposed between the bridge and the first touch electrodes and the second touch electrodes; a touch pad in the pad area; a touch sensing line connected to the first touch electrodes; and a touch driving line connected to the second touch electrodes, wherein at least one of the touch sensing line and the touch driving line is provided on a side surface of the encapsulation layer.Type: GrantFiled: July 8, 2021Date of Patent: November 12, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Yangsik Lee, JiHyun Jung, SuChang An, JaeGyun Lee, Ruda Rhe
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Patent number: 12142193Abstract: A display apparatus includes pixels. Each of the pixels includes a first node controller applying a data voltage to a first node, a second node controller shifting a voltage of a second node from a low level driving voltage to an on pulse voltage, a third node controller applying a reference voltage having an on level to a third node during a first period in one frame and applying the low level driving voltage to the third node during a second period, a driving transistor being on-duty-driven during the first period and off-duty-driven during the second period, and a light emitting device including an anode electrode connected to the second electrode of the driving transistor and a cathode electrode. The light emitting device emits light responsive to a constant current applied from the driving transistor during the first period and does not emit light during the second period.Type: GrantFiled: October 4, 2022Date of Patent: November 12, 2024Assignee: LG Display Co., Ltd.Inventors: Yong Chul Kwon, Jong Min Park, Joon Hee Lee
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Patent number: 12142070Abstract: An electronic device includes a first substrate, a second substrate, a light-impermeable layer, a light-emitting unit, and a photosensor. The second substrate is opposite to the first substrate. The light-impermeable layer is disposed between the first substrate and the second substrate and includes a first opening and a second opening. The light-emitting unit is disposed between the first substrate and the second substrate and overlapped with the first opening. The photosensor is disposed on the first substrate and overlapped with the second opening.Type: GrantFiled: November 10, 2022Date of Patent: November 12, 2024Assignee: Innolux CorporationInventors: Chandra Lius, Kuan-Feng Lee, Tsung-Han Tsai, Chung-Wen Yen, Chiu-Lien Yang
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Patent number: 12142221Abstract: 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 18, 2023Date of Patent: November 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Chang-Soo Pyon
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Patent number: 12142226Abstract: An electronic device includes a display panel including pixels respectively connected to scan lines, scan stages corresponding to the scan lines, where each of the scan stages receives a carry signal, and outputs a scan signal, masking circuits electrically connected to some of the scan stages, respectively, where each of the masking circuits outputs a masking carry signal in response to a masking signal and the scan signal, and transmission circuits electrically connected to others of the scan stages, respectively, where each of the transmission circuits outputs the scan signal output from a corresponding scan stage among the scan stages. A j-th (j is an integer greater than 1) scan stage among the scan stages receives one of the scan signal output from a (j?1)-th scan stage and the masking carry signal as the carry signal.Type: GrantFiled: September 6, 2023Date of Patent: November 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Heerim Song, Gyungsoon Park, Jinseok Jeong