Regulating Means Patents (Class 345/212)
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Patent number: 12293711Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.Type: GrantFiled: October 17, 2022Date of Patent: May 6, 2025Assignee: Samsung Display Co., Ltd.Inventors: Ki Wook Kim, Kwang Min Kim, Yang Wan Kim, Ji Su Na, Min Woo Byun
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Patent number: 12293738Abstract: This application discloses a refresh rate switching method and an electronic device. The method includes: When it is determined that a refresh rate of the display screen is to be switched, a second refresh rate is determined; when the second refresh rate is lower than a first refresh rate, a SOC sends a first switching instruction to a display screen IC; the display screen IC switches the refresh rate of the display screen from the first refresh rate to the second refresh rate; when the SOC determines that the switching of the refresh rate of the display screen is completed, the SOC switches transmission duration of image data corresponding to a first application from first transmission duration to second transmission duration corresponding to the second refresh rate; and the SOC transmits the image data corresponding to the first application to the display screen IC based on the second transmission duration.Type: GrantFiled: May 9, 2024Date of Patent: May 6, 2025Assignee: HONOR DEVICE CO., LTD.Inventor: Qifei Tian
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Patent number: 12277903Abstract: A display device including: a pixel unit including pixels for generating light in response to a first power and a second power; a power supply for supplying the first power to a first power line and the second power to a second power line; and a protection circuit for discharging a voltage of the first power line and the second power line when the pixels are in a turn-off state, and putting the first power line and the second power line in a high impedance state after a predetermined time.Type: GrantFiled: May 17, 2023Date of Patent: April 15, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Yoon Young Lee
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Patent number: 12278460Abstract: An embodiment pulse generator circuit is configured to apply a current pulse to two output terminals. The pulse generator circuit comprises an LC resonant circuit comprising an inductance and a capacitance connected in series between a first node and a negative input terminal. The pulse generator circuit comprises a charge circuit configured to charge the capacitance via a supply voltage, a first electronic switch configured to selectively short-circuit the two output terminals, a second electronic switch configured to selectively connect the two output terminals in parallel with the LC resonant circuit, and a control circuit configured to drive the first and the second electronic switch.Type: GrantFiled: December 16, 2020Date of Patent: April 15, 2025Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics S.r.l.Inventors: Romeo Letor, Antoine Pavlin, Alfio Russo, Nadia Lecci
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Patent number: 12277891Abstract: The present disclosure relates to a display apparatus and a diving method thereof that can prevent a dark spot caused by a leakage of a reset voltage to the anode electrode of a light emitting diode. In the display apparatus, a first (anode) electrode of a light emitting diode EL, one electrode (a source or drain electrode) of an emission transistor T4, and one electrode (a source or drain electrode) of a reset transistor T6 connect to one another, and a fourth gate electrode of the emission transistor T4 and a sixth gate electrode of the reset transistor T6 connect to an emission control signal line EML, solving the problem of a dark spot, ensuring improvement in the quality and reliability of a product, and enabling a narrow bezel.Type: GrantFiled: December 22, 2023Date of Patent: April 15, 2025Assignee: LG Display Co., Ltd.Inventor: Jaesik Hwang
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Patent number: 12271554Abstract: Disclosed are a touch circuit and driving method, and a touch display panel, the touch circuit includes a plurality of touch units, each touch unit includes a touch signal line, one or more data lines corresponding to the touch signal line, a data signal line connected to the data lines, transmitting a data signal to the data lines, a common signal line connected to the touch electrode; each touch unit includes a first transistor, a control terminal of the first transistor is connected to a first control signal line, a first conducting terminal is connected to the data lines or the data signal line, a second conducting terminal is connected to the touch signal line; though the aforesaid structure, reusing of the data signal line, reducing of the number of wires in the fanout wiring area, an effect of narrow bezel in the lower bezel can be realized.Type: GrantFiled: April 9, 2024Date of Patent: April 8, 2025Assignee: HKC CORPORATION LIMITEDInventors: Dongmei Wei, Zhonglin Cao, Jie Chen, Yajuan Feng, Yao Li, Haijiang Yuan
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Patent number: 12272280Abstract: Discussed is a short-circuit failure preventing method for reference voltage lines in a display device. The method includes identifying whether moisture permeates the reference voltage lines, and removing the moisture from the reference voltage lines when it is identified that the moisture permeates the reference voltage lines. Removing the moisture from the reference voltage lines includes applying a reference voltage to the reference voltage lines.Type: GrantFiled: November 13, 2023Date of Patent: April 8, 2025Assignee: LG DISPLAY CO., LTD.Inventor: Sanghyun Park
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Patent number: 12266291Abstract: A display driver is provided. The display driver includes: a plurality of source amplifiers connected to a plurality of source lines of a display panel, wherein one of the plurality of source amplifiers includes an input stage and an output stage configured to output a grayscale voltage to a source line of the plurality of source lines; and a decoder circuit configured to provide at least one of a plurality of gamma voltages to the input stage based on image data. The output stage includes a plurality of unit circuits connected to each other in parallel between the input stage and an output pad connected to the source line. Each of the plurality of unit circuits includes a buffer switch and an output buffer connected to the input stage, and is connected to the output pad through a resistor.Type: GrantFiled: December 16, 2022Date of Patent: April 1, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chanbong Yu, Yeongshin Jang, Woonyoung Lee
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Patent number: 12266302Abstract: A pixel circuit includes a drive sub-circuit, a write sub-circuit, a compensation sub-circuit, a first reset sub-circuit, a second reset sub-circuit and a light-emitting element. The drive sub-circuit is configured to provide a drive signal to a third node in response to signals of the first node and the second node; the write sub-circuit is configured to write the signal of the data signal line to the second node or the third node under a control of a signal of a first scanning signal line; the compensation sub-circuit is configured to compensate a voltage at the first node under the control of the signal of the first scanning signal line.Type: GrantFiled: August 27, 2021Date of Patent: April 1, 2025Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yipeng Chen, Ling Shi
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Patent number: 12267549Abstract: A display device and a method of controlling the same are provided. The display device may include: a memory comprising one or more executable instructions, and a processor configured to execute the one or more instructions stored in the memory, wherein the processor may be configured to: monitor a use state of the display device, based on at least one of an individual usage indicator configured for a current viewing mode among a plurality of viewing modes of the display device, and a universal usage indicator configured to be used for the plurality of viewing modes identify a current power saving level among a plurality of power saving levels of a phased power saving mode of the display device determine a next power saving level based on the use state and the current power saving level, and apply the next power saving level to the display device.Type: GrantFiled: October 11, 2022Date of Patent: April 1, 2025Assignee: Samsung Electronics Co., Ltd.Inventors: Eungsik Yoon, Hyunkyu Yun, Heeseok Jeong
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Patent number: 12260805Abstract: Provided is a display device including a display panel, an optical sensor, a timing controller, a scan driver, a data driver, and an image controller. The timing controller controls an image refresh rate of the display panel based on are fresh rate control signal. Thus, the display device provides improved visibility.Type: GrantFiled: March 19, 2024Date of Patent: March 25, 2025Assignees: Samsung Display Co., Ltd., UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: Hyo Sun Kim, Oh Sang Kwon, Seong Gyu Choe, Chang Yeong Han, Min Kyung Kim, You Ra Kim, Eun Jung Lee, Hyung Suk Hwang
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Patent number: 12262290Abstract: The building stress balance monitoring system of the passive sensor network, relating to the technical field of information, and aiming to solve the problem of making the pressure sensor easier to be charged in building stress monitoring. The system includes plurality of nodes arranged in the same building surface of the building or arranged in the supporting surface of the bridge; each node mainly consists of the pressure sensor module, the radio frequency signal acquisition module, and the network module; the sensing surface of the pressure sensing module acquires building pressure information and transmits same to the pressure sensor module; the pressure sensor module receives electric energy provided by the radio frequency signal acquisition module, and converts the pressure information into data, which can be uploaded to the network through the network module. The effect of making the pressure sensor easier to be charged is achieved.Type: GrantFiled: November 4, 2019Date of Patent: March 25, 2025Assignee: DALIAN UNIVERSITYInventors: Zumin Wang, Zupeng Zheng, Changqing Ji, Jing Qin
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Patent number: 12260813Abstract: Disclosed is a display device which includes a voltage generator including a first converter that generates a first voltage using an input voltage and is shut down in response to a shutdown signal and a short circuit protection part including a first short circuit protection part that compares an output voltage of an output terminal of the first converter with a first reference voltage and outputs the shutdown signal. The first converter pre-charges the output voltage to a predetermined voltage level during a first period, maintains a level of the output voltage during a second period subsequent to the first period, and boosts and outputs the output voltage as the first voltage during a third period subsequent to the second period. The first short circuit protection part outputs the shutdown signal when the output voltage in the second period has a level lower than that of the first reference voltage.Type: GrantFiled: September 19, 2023Date of Patent: March 25, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jeongmin Seo, Sungchun Park
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Patent number: 12260817Abstract: A display device including: first and second scan drivers; a data driver; a display unit including pixels connected to first and second scan lines, and data lines; and a controller controlling the first and second scan drivers, and the data driver, a first pixel includes: a light emitting element, a first transistor including a gate 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 connected to a first scan line, the second transistor is connected between a data line and the second node, and a storage capacitor connected between the first node and a first power voltage; the first transistor is reverse biased by a second scan signal applied to a second scan line; and a first scan signal applied to the first scan line is different from the second scan signal.Type: GrantFiled: December 8, 2022Date of Patent: March 25, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Gi Chang Lee
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Patent number: 12260830Abstract: A display apparatus for reducing a booting time includes: a display panel including a plurality of pixels; a timing controller configured to drive the display panel; and a at least one controller configured to control the timing controller to perform a sensing process for sensing electrical characteristics of the plurality of pixels based on power-on of the display panel, wherein the at least one controller is further configured to determine whether to perform the sensing process or skip the sensing process based on a power-off period of the display panel before the display panel is powered on.Type: GrantFiled: October 27, 2023Date of Patent: March 25, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sungjin Lim, Seungjun Jeong, Junghyun Yoon
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Patent number: 12260829Abstract: A data driving circuit of a display device is disclosed that includes a latch circuit to latch a data signal in response to a latch enable signal and to output a first signal, a level shifter to output a second signal obtained by changing a voltage level of the first signal, a digital-analog converter to output a third signal obtained by converting the second signal into an analog signal, an amplifier to output a fourth signal obtained by amplifying the third signal, a switch to output the fourth signal in a form of an image signal, in response to an output enable signal, and a signal generator to generate the latch enable signal and the output enable signal. The signal generator adjusts a start timing of the active duration of the latch enable signal, such that the active duration of the latch enable signal starts, after the inactive duration of the output enable signal starts.Type: GrantFiled: February 6, 2024Date of Patent: March 25, 2025Assignee: Samsung Display Co., Ltd.Inventors: Yoosung Kim, Hyunho Lim
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Patent number: 12254848Abstract: A display device includes a display panel, a gate driver; a source driver, supplying gradation voltage signals to multiple pixel parts via multiple data lines based on a video data signal, and supplying to the gate driver a gate control signal; and a video data transmission part, transmitting the video data signal to the source driver by using LVDS. The video data transmission part assigns, to an empty region that is a region other than regions assigned to multiple pixel data pieces forming one pixel of the video data signal in each data packet defined for a time of transmitting the video data signal for one pixel by using LVDS, an arithmetic value calculated based on the pixel data pieces, and transmits to the source driver together with the pixel data pieces as the video data signal.Type: GrantFiled: April 17, 2024Date of Patent: March 18, 2025Assignee: LAPIS Technology Co., Ltd.Inventor: Hiroaki Ishii
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Patent number: 12255638Abstract: The disclosure provides an electrical apparatus, including a substrate, a plurality of gate driver units and a plurality of gate lines. The gate driver units are disposed on the substrate. The gate lines are disposed on the substrate. Each of the gate lines is respectively electrically connected to the corresponding gate driver unit. Each of the gate lines is configured to transmit a respective gate signal. The gate lines include a first gate line and a second gate line. The first gate line and the second gate line are configured to transmit the respective gate signals at a same time.Type: GrantFiled: January 31, 2023Date of Patent: March 18, 2025Assignee: Innolux CorporationInventors: Hsiu-Yi Tsai, Yu-Ti Huang, Yu-Hsiang Chiu, Yi-Hung Lin
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Patent number: 12254804Abstract: A display apparatus includes a display panel; a gate driver configured to drive gate lines of the display panel, the gate driver including gate stages that are connected to a power line that supplies an output voltage to the gate stages; a comparator circuit coupled with the gate driver through a feedback line, the comparator circuit configured to compare a first divided voltage of a first node of the comparator circuit that is based on a feedback current in the feedback line and a second divided voltage of a second node of the comparator circuit that based on a reference voltage, and supply the output voltage to a third node of the comparator circuit that is connected to the power line, the output voltage based on the comparison between the first divided voltage and the second divided voltage.Type: GrantFiled: October 20, 2023Date of Patent: March 18, 2025Assignee: LG Display Co., Ltd.Inventor: Jae Yi Choi
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Patent number: 12254824Abstract: A pixel circuit includes a driving transistor, a storage capacitor, a first transistor, a second transistor, a third transistor and a fourth transistor. A first end of the driving transistor is electrically coupled to a system high voltage terminal. The driving transistor is configured to control a driving current supplied to a light emitting element. A first end of the storage capacitor is electrically coupled to a control end of the driving transistor. A first end of the first transistor is electrically coupled to a second end of the storage capacitor, and a second end of the first transistor is configured to receive a data signal. When the first transistor is turned on according to the first control signal, the storage capacitor resets a voltage at the control end of the driving transistor, by a capacitive coupling effect, according to a change in voltage of the data signal.Type: GrantFiled: December 18, 2023Date of Patent: March 18, 2025Assignee: AUO CORPORATIONInventors: Ying-Chieh Chen, Yi-Fu Ou, Yung-Hsiang Lan
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Patent number: 12249270Abstract: A display panel, a method for driving a display panel, and a display apparatus are provided. The display panel includes first sub-pixels. At least one of the first sub-pixels includes a first pixel circuit and a first light-emitting element. The first pixel circuit includes a display controller and a detector that are electrically connected to a first electrode of the first light-emitting element, respectively. An operating process of the first pixel circuit includes a detection stage. In the detection stage, the detector is turned on to detect a voltage of the first electrode of the first light-emitting element.Type: GrantFiled: June 14, 2023Date of Patent: March 11, 2025Assignee: Tianma Advanced Display Technology Institute (Xiamen) Co., Ltd.Inventor: Sitao Huo
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Patent number: 12250851Abstract: A display device according to the present disclosure includes: a drive circuit array substrate including drive circuits arranged in an array pattern on a semiconductor substrate; and light emitting elements arranged in an array pattern over the drive circuits and driven by the drive circuits, in which in a drive circuit group including a plurality of the drive circuits that are adjacent to each other, a well tap is provided in a part of the drive circuits of the plurality of the drive circuits included in the drive circuit group.Type: GrantFiled: April 30, 2024Date of Patent: March 11, 2025Assignee: Sony Group CorporationInventor: Tokihiro Yokono
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Patent number: 12248623Abstract: A display device includes: a visual sensor for generating visual sensing data by sensing an eye of a user; a display panel including a display area and pixels disposed on the display area; an image converter for generating a second image signal by converting a first image signal of the pixels based on the visual sensing data; and a data driver for providing the pixels with data signals corresponding to the second image signal. The image converter generates visual information based on the visual sensing data, determines a first area and a second area different from the first area of the display area based on the visual information, and generates the second image signal by converting grayscales of the second area in the first image signal.Type: GrantFiled: July 15, 2022Date of Patent: March 11, 2025Assignee: Samsung Display Co., Ltd.Inventors: Tae Un Lee, Sung Hwan Park, Chang Ho Hyun
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Patent number: 12244304Abstract: In examples, an apparatus has input and output terminals, and includes a first transistor having a first gate, source, and drain, wherein the first source is coupled to the input terminal, and the first drain is coupled to the output terminal, a second transistor having a second gate, source, and drain, wherein the second gate is coupled to a ground terminal, and the second source is coupled to the first gate, a third transistor having a third gate, source, and drain, wherein the third gate is coupled to an enable terminal, the third source is coupled to the ground terminal, and the third drain is coupled to the second drain, and a fourth transistor having a fourth gate, source, and drain, wherein the fourth gate is coupled to the second drain, the fourth source is coupled to the second source, and the fourth drain is coupled to the input terminal.Type: GrantFiled: March 31, 2023Date of Patent: March 4, 2025Assignee: Texas Instruments IncorporatedInventor: Vipul K. Singhal
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Patent number: 12242327Abstract: A chip power supply circuit and an electronic device are provided. The chip power supply circuit includes: one or more chips each comprising a first power supply pin and a second power supply pin; a first voltage regulator circuit connected to the first power supply pin of a corresponding chip of the one or more chips; and a second voltage regulator circuit, where the first power supply pin of the corresponding chip of the one or more chips is connected to the second power supply pin of the corresponding chip via the second voltage regulator circuit, and the second voltage regulator circuit is configured to convert the first voltage into a second voltage. The first voltage regulator circuit and the second voltage regulator circuit are respectively located on different sides of at least one of the one or more chips.Type: GrantFiled: May 24, 2023Date of Patent: March 4, 2025Assignee: Bitmain Technologies Inc.Inventors: Lijun Wang, Fei Wu
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Patent number: 12235675Abstract: A signal generator may include a reference horizontal synchronization signal generation block which generates reference horizontal synchronization signals based on a number of clock signals per a horizontal time, a frame clock calculation block which calculates a first frame clock number based on a number of the clock signals per the horizontal time, a frame clock comparation block which calculates a clock offset by comparing the first frame clock number and a second frame clock number generated based on a number of the clock signals per a frame time, a clock distribution block which generates horizontal synchronization signals by distributing a number of the clock signals corresponding to the clock offset to the reference horizontal synchronization signals, and a vertical synchronization signal generation block which generates a vertical synchronization signal based on the horizontal synchronization signals.Type: GrantFiled: April 17, 2024Date of Patent: February 25, 2025Assignee: Samsung Display Co., Ltd.Inventor: Se-Byung Chae
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Patent number: 12236830Abstract: A method for calibrating input display data for multiple display refresh rates comprises measuring (1210) an optical property of a display panel for an input gray level at a first refresh rate, measuring (1220) the optical property for a plurality of candidate gray levels at a second refresh rate, selecting (1230), based on the measured optical properties of the display panel, a corresponding gray level for the input gray level, wherein the corresponding gray level is selected from the plurality of candidate gray levels and storing (1240), at the device, the corresponding gray level for the input gray level, wherein subsequent to the storing, the device is configured to adjust input display data using the corresponding gray level for the input gray level when the display panel is transitioning from the first refresh rate to the second refresh rate.Type: GrantFiled: January 25, 2021Date of Patent: February 25, 2025Assignee: Google LLCInventors: Chien-Hui Wen, Hsin-Yu Chen
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Patent number: 12236867Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).Type: GrantFiled: September 30, 2021Date of Patent: February 25, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Lujiang Huangfu, Li Wang, Jianchao Zhu, Libin Liu, Yu Feng
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Patent number: 12236835Abstract: A control method of a display panel. The method includes the following steps: determining a target refresh frequency of the display panel; determining a data chopping rule adapted to the target refresh frequency according to the first mapping relationship; providing a data signal to the display panel according to a data chopping rule.Type: GrantFiled: January 4, 2022Date of Patent: February 25, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Baoyun Wu, Xiyu Zhao, Hui Zhao, Xinbin Han, Yao Liang, Kaimin Wang
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Patent number: 12237853Abstract: An information handling system executing an integrated antenna power and cooling management system may comprise an antenna situated nearby components of the information handling system, a chassis enclosing the information handling system, the antenna, and a wireless interface device with a wireless radio to generate a signal to transmit data via the antenna, where the components and the chassis are capable of absorbing a total thermal heat capacity, the chassis having an outer surface coming into contact with human skin during execution of the information handling system, a temperature sensor to determine an operating temperature of the information handling system reaching a control point value, and a processor executing code instructions to estimate antenna thermal output during data transmission relative to the total thermal heat capacity of the components, based on the operating temperature of the information handling system, and control an active cooling system for cooling the chassis.Type: GrantFiled: January 25, 2022Date of Patent: February 25, 2025Assignee: DELL PRODUCTS LPInventors: Suresh K. Ramasamy, Travis C. North, Qinghong He, Adolfo S. Montero
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Patent number: 12236916Abstract: Provided is a drive circuit that includes a gradation voltage generation unit that generates a plurality of gradation voltages that can be supplied to a signal line. The drive circuit further includes a voltage selector that selects, from among the plurality of gradation voltages, whether to supply a gradation voltage of the same voltage level as an assumed gradation voltage to a signal line or to supply a gradation voltage close to the assumed gradation voltage to a signal line.Type: GrantFiled: December 15, 2021Date of Patent: February 25, 2025Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Naoto Munemura, Michiru Senda
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Patent number: 12225793Abstract: A display device includes: a plurality of main display elements in the main display area; a plurality of auxiliary display elements and a transmission area in the component area; a first pixel circuit in the component area and connected to a first auxiliary display element among the auxiliary display elements; a second pixel circuit in the component area and connected to a second auxiliary display element among the auxiliary display elements, the second pixel circuit neighboring the first pixel circuit in a column direction; and a first initialization voltage line in the component area, extending in a row direction, arranged between the first pixel circuit and the second pixel circuit, and connected to the first pixel circuit and the second pixel circuit, wherein the first pixel circuit and the second pixel circuit are symmetric with respect to the first initialization voltage line.Type: GrantFiled: May 1, 2023Date of Patent: February 11, 2025Assignee: Samsung Display Co., Ltd.Inventors: Hyunji Cha, Youngsoo Yoon, Yunkyeong In
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Patent number: 12220823Abstract: A device includes a housing. An actuator is disposed within the housing. The actuator includes an actuator arm extending from the housing. A motor controller is disposed within the housing to control the actuator. A network input/output device is configured to communicate with a computer device over a communications network. The actuator is controlled remotely by one or more commands received from the computer device.Type: GrantFiled: November 12, 2021Date of Patent: February 11, 2025Assignee: Future Dial, Inc.Inventors: Yueting Zhang, Haofeng Song, Jisheng Li
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Patent number: 12223882Abstract: The embodiments of present the application disclose a display panel. The display panel includes a substrate disposed with a plurality of scanning lines and a plurality of data lines. A light-emitting component includes three scanning lines and two light-emitting units, and a light-emitting unit includes a plurality of sub light-emitting pixels. A number of the data lines is less than a number of the sub light-emitting pixels in the light-emitting unit, and a product of the data lines and the scanning lines is greater than or equal to the number of the sub light-emitting pixels. By electrically connecting two light-emitting units with three scanning lines, the number of the data lines is reduced and production cost is decreased.Type: GrantFiled: May 13, 2022Date of Patent: February 11, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Hui Li
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Patent number: 12223904Abstract: The invention of the application is the invention regarding a semiconductor device and a method for driving the semiconductor device. The semiconductor device includes first and second transistors, first to fifth switches, first to third capacitors, and a display element.Type: GrantFiled: June 23, 2022Date of Patent: February 11, 2025Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuki Okamoto, Tatsuya Onuki, Hidetomo Kobayashi, Munehiro Kozuma, Takanori Matsuzaki, Susumu Kawashima, Yutaka Okazaki
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Patent number: 12216817Abstract: A display device includes: a visual sensor for generating visual sensing data by sensing an eye of a user; a display panel including a display area and pixels disposed on the display area; an image converter for generating a second image signal by converting a first image signal of the pixels based on the visual sensing data; and a data driver for providing the pixels with data signals corresponding to the second image signal. The image converter generates visual information based on the visual sensing data, determines a first area and a second area different from the first area of the display area based on the visual information, and generates the second image signal by converting grayscales of the second area in the first image signal.Type: GrantFiled: July 15, 2022Date of Patent: February 4, 2025Assignee: Samsung Display Co., Ltd.Inventors: Tae Un Lee, Sung Hwan Park, Chang Ho Hyun
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Patent number: 12217683Abstract: Provided herein is a sub-pixel including first to seventh transistors, first and second capacitors, and a light emitting element, and a display device including the sub-pixel. A body terminal of the first transistor is connected to a first power line. In the sub-pixel and the display device including the sub-pixel in accordance with embodiments of the present disclosure, mitigation of the body effect may lead to an improvement in display quality.Type: GrantFiled: January 31, 2024Date of Patent: February 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joon Chul Goh, Sang Hyun Heo
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Patent number: 12217693Abstract: A pixel driving circuit and a display panel are provided by the present application. An electrical potential of a control terminal of a driving module can be kept stable through a detection module by connecting the detection module with a control terminal of the driving module when detecting a threshold voltage of the driving module. In this way, an obtained threshold voltage of the driving module is accurate, to make the threshold voltage of the driving module can be accurately compensated, and a display uniformity and a stability of the display panel are improved.Type: GrantFiled: December 24, 2021Date of Patent: February 4, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Xiaolong Chen
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Patent number: 12217699Abstract: A display apparatus includes a pixel part including a plurality of pixels, and a gate driving circuit. Each of the plurality of pixels is driven in one first scan period and one or more second scan periods during one frame in a driving mode driven at a first driving frequency lower than a maximum driving frequency.Type: GrantFiled: November 6, 2023Date of Patent: February 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gyungsoon Park, Sunhwa Lee, Hyunjoon Kim, Jaeyong Jang, Kyunghoon Chung
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Patent number: 12217717Abstract: The present disclosure relates to a circuit and a method for conditioning a clock signal, display panel, and display device. The circuit includes a signal conversion circuit and a delay processing circuit; when a voltage amplitude of the converted electrical signal falls within a turn-on threshold range, the delay processing circuit receives the N-th clock signal transmitted from the N-th clock signal output terminal, and performs delay processing on the N-th clock signal, so as to avoid occurrence of GOA-stage transfer abnormality when one of the plurality of CK clock signals is in an abnormal condition that no signal is output.Type: GrantFiled: April 19, 2022Date of Patent: February 4, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Zhaoxian Zhong
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Patent number: 12217708Abstract: A display device includes a substrate, a first active pattern, a first gate electrode, a second active pattern, a second gate electrode, a first connecting pattern, and a second connecting pattern. The first connecting pattern is disposed on the second active pattern and is electrically connected to the first gate electrode, and the second connecting pattern is disposed on the first connecting pattern and is electrically connected to the first connecting pattern and the second active pattern.Type: GrantFiled: December 15, 2023Date of Patent: February 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Seon Lee, Jin Sung An, Seok Je Seong, Seong Jun Lee, Se Wan Son
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Patent number: 12211426Abstract: An image dis play method applied to a display apparatus includes: establishing a correspondence table between a threshold voltage of a sub-pixel and a compensation voltage, the correspondence table including at least one adjustment interval, an adjustment interval including a first and second threshold voltage endpoint values, the first threshold voltage endpoint value being less than the second threshold voltage endpoint value; acquiring a threshold voltage of each sub-pixel; determining an adjustment interval in which the acquired threshold voltage is located according to the corresponding table; acquiring a compensation voltage corresponding to the acquired threshold voltage according to the correspondence table and the determined adjustment interval; and determining, in a case where the display apparatus is to display a black image, a data voltage required by each sub-pixel according to the acquired threshold voltage and the acquired compensation voltage.Type: GrantFiled: September 8, 2021Date of Patent: January 28, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Huihui Li, Wenchao Bao, Song Meng, Jingbo Xu
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Patent number: 12211430Abstract: A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.Type: GrantFiled: September 25, 2023Date of Patent: January 28, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Junhyun Park, Hyeongseok Kim, Jangmi Kang, Minjae Jeong, Mukyung Jeon
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Patent number: 12205536Abstract: The present disclosure discloses a pixel circuit and a display panel. The pixel circuit comprises a second wire, a first light-emitting control unit, a driving unit, and a compensation unit. A control terminal of the first light-emitting control unit and a control terminal of the compensation unit share the second wire, which can save a wire quantity of the pixel circuit, thereby improving display resolution; at the same time, a control terminal of the driving unit is only equipped with the compensation unit, which reduces a leakage path of the control terminal of the driving unit.Type: GrantFiled: September 6, 2021Date of Patent: January 21, 2025Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xuanyun Wang, Cheng Chen, Chao Dai, Yixian Zhang
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Patent number: 12205528Abstract: The present application provides a display panel and a display apparatus. The display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a pixel circuit and a light emitting element; the pixel circuit includes a data writing module, a driving module, a light emitting control module and a pre-charging module; the data writing module is configured to provide a data signal to the driving module; the driving module is configured to provide a driving current to the light emitting element; the light emitting control module is configured to selectively allow the light emitting element to enter a light emitting stage; and the pre-charging module is configured to increase a voltage of a first node to a first voltage in a non-light emitting stage, in which the first voltage is less than a light emitting threshold voltage of the light emitting element.Type: GrantFiled: May 4, 2023Date of Patent: January 21, 2025Assignee: WUHAN TIANMA MICROELECTRONICS CO., LTD.Inventor: Junbo Xu
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Patent number: 12205533Abstract: A display panel and a light emitting signal generator thereof are provided. The light emitting signal generator includes an output stage circuit, a first control signal generator, a second control signal generator, a switch, and a capacitor. The output stage circuit generates a light emitting signal according to a first control signal and a second control signal. The first control signal generator generates the first control signal at a first control end. The second control signal generator generates the second control signal at a second control end. The switch is coupled between the first control end and the output stage circuit. The first capacitor is coupled to the first control end.Type: GrantFiled: October 23, 2023Date of Patent: January 21, 2025Assignee: AUO CorporationInventors: Ming-Yang Deng, Ming-Hung Chuang
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Patent number: 12198595Abstract: A driving method for a display and a display are provided. The driving method includes: obtaining a first gray scale extremum of a target image frame according to display data of the target image frame; adjusting a first power voltage according to the first gray scale extremum, to obtain a second power voltage; and driving, according to the second power voltage and the display data of the target image frame, the display for displaying. By means of the present disclosure, the second power voltage can be dynamically adjusted, thereby ensuring the display effect and reducing the energy consumption of the display panel.Type: GrantFiled: December 16, 2021Date of Patent: January 14, 2025Assignees: Huizhou China Star Optoelectronics Display Co., Ltd., Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Xiaobing Lu, Xiaolong Chen
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Patent number: 12198619Abstract: The present disclosure proposes a pixel driving circuit and a display device. The pixel driving circuit comprises a driving transistor, a first data writing module and a second data writing module. The driving transistor comprises: a channel in a channel layer, a first gate in a first gate layer, and a second gate in a second gate layer, and an output end electrically connected to a light generating unit. The first gate and the second gate are respectively located at opposite sides of the channel. The first data writing module comprises an output end electrically connected to the first gate. The second data writing module comprises an output end electrically connected to the second gate.Type: GrantFiled: December 31, 2020Date of Patent: January 14, 2025Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Lei Gao, Zhenling Wang
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Patent number: 12192029Abstract: Methods and systems are provided for power management in communication devices, particularly based on cable connectivity. A power management component in a system may be configured to manage power use in the system based on measurements associated with a signal path used for communication by the system via a communication port, wherein the managing includes. Managing the power use may include determining, based on the measurements, connectivity related information associated with connectivity of the system via the communication port; applying, based on the connectivity related information, one or more power use reduction measures, wherein the one or more power use reduction measures include transitioning between different power related states; and monitoring one or more conditions to determine when to stop, undo, or reverse at least one of the one or more power use reduction measures.Type: GrantFiled: July 25, 2023Date of Patent: January 7, 2025Assignee: ENTROPIC COMMUNICATIONS, LLCInventor: Branislav Petrovic
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Patent number: 12190787Abstract: A display apparatus includes a display panel including a plurality of pixels; a timing controller generating image data, a data control signal, and a gate control signal, based on an input image signal and an input control signal; a data driver generating a data signal for an output image based on the image data and the data control signal and supplying the data signal to the pixels; a gate driver generating a gate signal based on the gate control signal and supplying the gate signal for the output image to the pixels. The timing controller detects a frame period corresponding to a frame rate of the input image and when the detected frame period is longer than the critical period, inserts a sub frame duration to output active data for image refresh after outputting active data of an output frame duration corresponding to the output image.Type: GrantFiled: November 6, 2023Date of Patent: January 7, 2025Assignee: LG Display Co., Ltd.Inventors: JaeYeong Go, Taegung Kim, DongJun You, HwakDong Park