Solid Body Light Emitter (e.g., Led) Patents (Class 345/82)
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Patent number: 11869425Abstract: A display device may include a first power line; a second power line; a data line that transmits a data signal; a scan line that transmits a scan signal; and pixels electrically connected to the first power line, the second power line, the data line, and the scan line. Each of the pixels may include light emitting elements electrically connected between the first power line and the second power line; and a first transistor that provides driving current to the light emitting elements in response to the data signal.Type: GrantFiled: December 30, 2019Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won Sik Oh, Hyun Min Cho, Sin Chul Kang, Dae Hyun Kim
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Patent number: 11869446Abstract: A display device includes a display panel including a pixel including switching elements of a first type and a second type different from the first type, a gate driver for generating a gate signal based on a gate clock signal and providing the gate signal to the display panel, a data driver for providing data voltage to the display panel, an emission controller for providing an emission controlling signal to the display panel, and a driving controller for generating control signals for controlling the gate and data drivers, and the emission controller. In a low-frequency driving mode, the display panel operates in a writing frame for writing data in the pixel and in a holding frame for holding the data written in the pixel, and the driving controller provides the gate driver with a gate clock signal having a direct current (DC) voltage during the holding frame.Type: GrantFiled: June 28, 2019Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sehyuk Park, Hyo-Jin Lee
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Patent number: 11869394Abstract: According to an aspect, a display device includes: a liquid crystal display panel provided with a plurality of pixels; and a light source provided with a plurality of light emission points. The ratio of a pitch of the pixels arranged in a predetermined direction to a pitch of the light emission points arranged in the predetermined direction is 1:4n or 1:6n, and n is a natural number.Type: GrantFiled: February 13, 2023Date of Patent: January 9, 2024Assignee: Japan Display Inc.Inventors: Kazunari Tomizawa, Takeo Koito
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Patent number: 11869396Abstract: The present disclosure relates a display device and a method of driving the same. For example, a display device according to one or more embodiments of the present disclosure includes pixels, a sensing unit, and a compensator calculating a current compensation value for each of the pixels based on a sensing value of the sensing unit, a first pixel among the pixels includes at least two light emitting diodes connected in series with a first transistor that controls a current, the sensing unit outputs a sensing value by sensing a voltage of the light emitting diodes in a sensing period, and the compensator increases the current compensation value for the first pixel as a voltage of the second node decreases in the sensing period.Type: GrantFiled: November 27, 2020Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventor: Yo Han Lee
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Patent number: 11864424Abstract: A pixel comprises a pixel circuit connected to gate and data lines, and a light emitting diode having a first electrode connected to the pixel circuit, wherein the pixel circuit may include a driving thin film transistor connected to the first electrode of the light emitting diode, a first capacitor formed in a horizontal direction between a gate electrode and a source electrode of the driving thin film transistor, and a second capacitor formed in a vertical direction between the gate electrode of the driving thin film transistor and the first electrode of the light emitting diode.Type: GrantFiled: July 29, 2021Date of Patent: January 2, 2024Assignee: LG Display Co., Ltd.Inventors: Hun Jang, Daeyoung Seo, Soyoung Lee
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Patent number: 11862086Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.Type: GrantFiled: July 6, 2022Date of Patent: January 2, 2024Assignee: LG Display Co., Ltd.Inventors: Jae Hoon Park, Jae Sung Yu
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Patent number: 11854464Abstract: The present disclosure provides a display device and a light-emitting panel. The light-emitting panel includes a plurality of minimal repeating units, the minimal repeating units include a driving chip and a light emitting device, and the driving chip and the light emitting device are electrically connected, wherein the driving chip includes a first driving submodule, a second driving submodule, and a capacitor, and the light emitting device includes a first light emitting device and a second light emitting device. The first driving submodule is electrically connected to a first end of the first light emitting device, and the second driving submodule is electrically connected to a first end of the second light emitting device.Type: GrantFiled: November 27, 2020Date of Patent: December 26, 2023Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Yan Li
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Patent number: 11854509Abstract: A display substrate has a display area and a peripheral area. The display substrate includes a plurality of sub-pixels, a plurality of groups of gate scan signal lines, and a plurality of groups of data lines. Each group of gate scan signal lines includes at least one gate scan signal line, each group of data lines includes n data lines, and the plurality of sub-pixels are arranged in an array; and n is greater than or equal to 2. A group of gate scan signal lines is electrically connected to n rows of sub-pixels. A column of sub-pixels is electrically connected to a group of data lines, and includes a plurality of groups of sub-pixels. Each group of sub-pixels includes n sub-pixels. The n sub-pixels are respectively electrically connected to n data lines in the group of data lines to which this column of sub-pixels is electrically connected.Type: GrantFiled: October 13, 2021Date of Patent: December 26, 2023Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
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Patent number: 11854461Abstract: The present application discloses a GOA circuit and a display panel. High-temperature durability of a first node is improved not only by adding a thirteenth transistor to a pull-down remaining module to lower a voltage difference between a source and a drain of the an eleventh transistor to suppress electric leakage of the first node, but also by adding a twentieth transistor to the pull-down remaining module to lower a voltage difference between a gate and a source of a nineteenth transistor to suppress electric leakage of the first node.Type: GrantFiled: April 14, 2020Date of Patent: December 26, 2023Inventor: Jing Zhu
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Patent number: 11856825Abstract: An OLED display device including: a substrate including a display area and a non-display area; an organic light emitting element including a first electrode, an organic light emitting layer on the first electrode, and a second electrode on the organic light emitting layer; a first conductive line at the non-display area of the substrate; a first organic layer on the first conductive line; a second conductive line on the first organic layer and connected to the first conductive line; a second organic layer on the second conductive line; and a third conductive line on the second organic layer and connected to the second conductive line. The third conductive line is connected to the second electrode. The first electrode is at the display area of the substrate.Type: GrantFiled: November 2, 2020Date of Patent: December 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taehyun Kim, Seungmin Lee, Seonyoung Choi, Sangho Park, Donghwan Shim, Jungkyu Lee, Seunghwan Cho
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Patent number: 11847971Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel in which a plurality of driving voltage feedback lines branched from a driving voltage line for supplying a driving voltage to a plurality of subpixels are disposed; a driving circuit for supplying a data voltage to the plurality of subpixels and determining a deviation of a feedback driving voltage detected through the plurality of driving voltage feedback lines; and a timing controller for compensating for image data depending on positions at which the plurality of driving voltage feedback lines are branched in the display panel based on the deviation of the feedback driving voltage, and supplying a compensated image data to the driving circuit.Type: GrantFiled: May 12, 2022Date of Patent: December 19, 2023Assignee: LG Display Co., Ltd.Inventors: Ri Yu, SangHyun Lim, Myoungjae Kang, Bonghwan Kim
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Patent number: 11847954Abstract: Provided are a pixel circuitry, a control method thereof and a display device. The pixel circuitry includes: a plurality of sub-pixels arranged in an array; a plurality of gate lines extending in a first direction, where all sub-pixels located in one row are electrically coupled to one gate line; a plurality of first signal lines and a plurality of second signal lines extending in a second direction, where all sub-pixels located in odd-numbered rows and one column are electrically coupled to one first signal line, and all sub-pixels located in even-numbered rows and one column are electrically coupled to one second signal line, the second direction being perpendicular to the first direction; and a plurality of data lines extending in the second direction, where two first signal lines and two second signal lines coupled to two adjacent columns of sub-pixels are electrically coupled to one data line.Type: GrantFiled: February 2, 2021Date of Patent: December 19, 2023Assignee: BOE Technology Group Co., Ltd.Inventor: Tian Dong
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Patent number: 11842693Abstract: A light-emitting display apparatus includes a display panel configured to display an image, a data driving circuit configured to apply a data voltage to the display panel, and a signal applying circuit configured to apply a data voltage output from a first channel of the data driving circuit to one of at least two data lines disposed on the display panel, in which the signal applying circuit includes a compensation circuit configured to prevent a data voltage increase due to signal coupling when the data voltage output from the first channel is applied to one of the at least two data lines.Type: GrantFiled: July 19, 2022Date of Patent: December 12, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Jeong Ho Kim, Dae Kyu Kim
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Patent number: 11842697Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.Type: GrantFiled: April 27, 2023Date of Patent: December 12, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Toshiyuki Kasai, Takeshi Nomura
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Patent number: 11844252Abstract: This application discloses a current-driven display device able to suppress degradation in display quality due to a luminance gradient or the like caused by a voltage drop across a power supply line while avoiding an increase in size of the circuit as much as possible. In an organic EL display device, a high-level power supply line includes a main wiring line, trunk wiring lines branching off from the main wiring line and extending in a column direction, and branch wiring lines extending in a row direction along scanning signal lines, respectively. The trunk wiring lines and the branch wiring lines are formed in different layers from each other with an insulating layer interposed therebetween, where each branch wiring line is electrically connected conductively to at least one trunk wiring line through a contact hole, and each trunk wiring line is electrically connected conductively to only one branch wiring line through a contact hole.Type: GrantFiled: March 29, 2019Date of Patent: December 12, 2023Assignee: SHARP KABUSHIKI KAISHAInventor: Tetsuya Ueno
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Patent number: 11844160Abstract: A monolithic bus slave circuit structure is provided, including: a monolithic integrated chip, a rectifier bridge, a first light circuit, a second light circuit, and a third light circuit. The monolithic integrated chip includes a bus voltage input pin, a ground pin, a first drive signal output pin, a second drive signal output pin, a third drive signal output pin, and a power output pin. Both the bus voltage input pin and the ground pin are connected to an output end of the rectifier bridge, two input ends of the rectifier bridge are connected to a positive line and an negative line of a bus respectively, the ground pin is grounded. The monolithic bus slave circuit structure realizes the intelligent constant current drive function and drive the light circuits with constant current in the voltage range of the whole bus, which does not depend on the parameters of the LEDs.Type: GrantFiled: July 2, 2021Date of Patent: December 12, 2023Assignee: CRM ICBG (WUXI) CO., LTD.Inventors: Jieqiong Zeng, Tianshun Zhang, Jun Zhang, Zengwei Ding, Junlei Wu, Yufang Liu, Lili Jiang
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Patent number: 11842685Abstract: A pixel includes: a light emitting element; a first transistor generating a driving current flowing from a first power line to a second power line; a second transistor being turned on in response to a fourth scan signal; a third transistor being turned on in response to a second scan signal; a fourth transistor being turned on in response to a first scan signal; a fifth transistor being turned on in response to a third scan signal; a sixth transistor being turned off in response to a first emission control signal; a first capacitor; and a second capacitor. A period in which the second transistor is turned on and a period in which the third transistor is turned on do not overlap with each other.Type: GrantFiled: July 19, 2022Date of Patent: December 12, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yong Jae Kim, In Jun Bae, Hyun Wook Choi
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Patent number: 11837148Abstract: A display device includes a plurality of pixels grouped into blocks divided into block rows extending in a first direction and arranged in a second direction, wherein each block includes two or more pixels connected to a first power source line, and each pixel is assigned with a grayscale value in a range of grayscale values that is divided into a plurality of grayscale sections; and a first power source voltage adjuster selecting a reference block row, and determining a magnitude of a first power source voltage supplied to the first power source line based on a number of blocks in the reference block row having a grayscale section that is same as a maximum grayscale section of the reference block row. The maximum grayscale section corresponds to a grayscale section that includes a largest grayscale value having a grayscale value ratio greater than a minimum ratio.Type: GrantFiled: July 29, 2022Date of Patent: December 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Ki Hyun Pyun, Won Jin Seo, Eun Jin Choi
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Patent number: 11837163Abstract: The present disclosure provides a display panel having a display area and including: a plurality of infrared emitting units and a plurality of infrared receiving units in the display area. The plurality of infrared emitting units are configured to emit infrared light to outside of the display panel, and the plurality of infrared receiving units are configured to receive the infrared light reflected by an object outside the display panel and output an electrical signal according to the received infrared light.Type: GrantFiled: February 18, 2021Date of Patent: December 5, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Peng Xu, Jianbo Ye, Ju Mei, Zhenzhen Wang, Guoqiang Ma
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Patent number: 11837153Abstract: A light emitting substrate is provided. The light emitting substrate includes a plurality of light emitting controlling units arranged in M rows and N columns, M is an integer equal to or greater than one, N is an integer equal to or greater than one, wherein a respective one of the plurality of light emitting controlling units includes a plurality of light emitting elements arranged in J rows and I columns, J being an integer equal to or greater than one, I being an integer equal to or greater than one, a i-th column of the I columns of light emitting elements includes J rows of light emitting elements, 1?i?I; (M×J) number of first voltage signal lines; and (M×J) number of groups of second voltage signal lines.Type: GrantFiled: March 4, 2021Date of Patent: December 5, 2023Assignee: BOB Technology Group Co., Ltd.Inventors: Ming Yang, Qi Qi, Wanzhi Chen, Lubin Shi, Fuqiang Li, Fei Wang
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Patent number: 11837151Abstract: A display module includes a substrate; a plurality of pixels provided on a surface of the module substrate; a plurality of first micro-pixel controllers provided in spaces between the plurality of pixels, and a plurality of second micro-pixel controllers provided in a periphery area of the upper surface of the module substrate, wherein each of the plurality of first micro-pixel controllers controls two or more pixels of the plurality of pixels, and at least one function performed by the plurality of first micro-pixel controllers is different from at least one function performed by the plurality of second micro-pixel controllers.Type: GrantFiled: November 10, 2021Date of Patent: December 5, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangyoung Park, Jongsu Oh, Hoseop Lee, Shigeta Tetsuya
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Patent number: 11830412Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan linesType: GrantFiled: September 26, 2022Date of Patent: November 28, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kyong Hwan Oh, Ji Hyun Ka, Ki Myeong Eom, Hai Jung In, Jin Jeon, Won Kyu Kwak, Hyun Lee, Hwan Soo Jang, Jin Tae Jeong
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Patent number: 11830404Abstract: A display apparatus includes a display panel, an afterimage compensator and a data driver. The display panel displays an image. The afterimage compensator writes first stress data of input image data corresponding to a first area to a first memory area in a first block size and second stress data of the input image data corresponding to a second area to a second memory area in a second block size different from the first block size and compensates a grayscale value of the input image data based on the first stress data and the second stress data. The data driver generates a data voltage based on a compensated grayscale value and outputs the data voltage to the display panel.Type: GrantFiled: February 7, 2022Date of Patent: November 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Shin Kim, Inbok Song, Sung-Yeol Baek, Kyungsu Lee
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Patent number: 11830883Abstract: A display device includes: a substrate having a display area and a peripheral area; a first wiring layer to transfer a gate signal in the display area; a second wiring layer to transfer a data voltage in the display area; a data fan-out having a first data fan-out wire connected to the second wiring layer; and a data flexible printed circuit board electrically connected to the first data fan-out wire in the peripheral area. The first data fan-out wire includes a first zigzag portion having a zigzag shape and a first straight portion that extends from the first zigzag portion. A width of the first straight portion is larger than a width of the first zigzag portion.Type: GrantFiled: January 28, 2022Date of Patent: November 28, 2023Assignee: Samsung Display Co., Ltd.Inventor: Sun Kwun Son
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Patent number: 11832485Abstract: A display apparatus includes a substrate, a wire having an inner edge including first and second portions, a first insulating layer covering a portion of the substrate, and a second insulating layer. The portion of the substrate covered by the first insulating layer is closer to a center of the substrate than the wire, the first insulating layer covers a part of the first portion of the wire and a part of the second portion of the wire, and a first end of the first insulating layer is disposed on the wire. The second insulating layer covers the first insulating layer and has a second end disposed on the wire. A distance between the first end and the second end covering the first portion of the wire is different from a distance between the first end and the second end covering the second portion of the wire.Type: GrantFiled: April 25, 2022Date of Patent: November 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kiwook Kim, Kwangmin Kim, Yangwan Kim, Jisu Na, Minwoo Byun
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Patent number: 11816285Abstract: An input-display device includes a display panel, sensor electrodes, and a display driver. The display panel includes source lines. The sensor electrodes are capacitively coupled to the source lines. The display driver is configured to receive image data. The display driver is further configured to process the image data in response to a detection of a horizontal stripe pattern in an image corresponding to the image data. The display driver is further configured to drive the source lines based at least in part on the processed image data.Type: GrantFiled: March 29, 2022Date of Patent: November 14, 2023Assignee: Synaptics IncorporatedInventors: Daisuke Ito, Nobukazu Tanaka, Masaaki Shiomura
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Patent number: 11810523Abstract: An embodiment enables natural and smooth change in the brightness of a backlight unit and is able to reduce flicker by changing a dimming value between frames through a mixed function including a plurality of functions having different characteristics.Type: GrantFiled: April 20, 2021Date of Patent: November 7, 2023Assignee: SILICON WORKS CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Jung Eun Baek, Xin Cui, Do Hoon Lee
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Patent number: 11810517Abstract: A display device includes a pixel having a first transistor connected between first and second nodes to generate a driving current; an emission driver that supplies an emission control signal including an off-duty corresponding to first and second gate-off periods to an emission control line during a frame period; a scan driver that supplies first to fourth scan signals to the first to fourth scan lines in a first non-emission period, respectively, and that supplies the first scan signal to the first scan line in a second non-emission period; a data driver that supplies a data signal to the data line; and a controller adjusting the off-duty of the emission control signal that is a width of each of the first and second non-emission periods in response to a dimming signal, and that controls a timing at which the first scan signal is supplied in the second non-emission period.Type: GrantFiled: July 8, 2022Date of Patent: November 7, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kyoung Jin Park, Yang Wan Kim
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Patent number: 11804163Abstract: Provided is a display method which includes: acquiring luminance information of the environment where the display device is currently located, wherein the luminance information includes at least one of ambient luminance information and reflection luminance information; and based on the acquired luminance information, determining a target gamma curve of the display device. A display device and a non-transitory computer-readable computer storage medium are also provided.Type: GrantFiled: May 7, 2020Date of Patent: October 31, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Xiangchun Xiao
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Patent number: 11805239Abstract: A rotary display device includes a display module, a rotating shaft, a transmission apparatus, an acquisition apparatus and a control apparatus. The transmission apparatus is configured to drive the display module to rotate with the rotating shaft. The control apparatus is configured to: receive information of picture(s), acquired by the acquisition apparatus, of an outside of the display module and determine whether a picture includes face figure(s); if no face figure is included in the picture, control the display module to display images in a first condition; if the face figure(s) are included in the picture, control the display module to display images in a second condition. A second refresh rate in the second condition is greater than a first refresh rate in the first condition, and a second color depth in the second condition is greater than a first color depth in the first condition.Type: GrantFiled: January 21, 2021Date of Patent: October 31, 2023Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiyang Shao, Yuxin Bi, Binhua Sun, Feng Zi
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Patent number: 11800761Abstract: A display comprises a substrate (e.g., glass), a plurality of pixel circuits disposed on a back surface of the substrate, and a plurality of self-emitting devices disposed on a front surface of the substrate. The self-emitting devices are electrically connected to the plurality of pixel circuits by at least one electrically conductive via traveling through the substrate. Each pixel circuit comprises a first and a second transistor and a capacitor. The self-emitting devices may be LEDs or OLEDs for example.Type: GrantFiled: September 12, 2022Date of Patent: October 24, 2023Assignee: V-Finity, Inc.Inventor: Heng Liu
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Patent number: 11800775Abstract: A display device includes; pixel units arranged in a matrix on a first substrate, wherein each pixel unit among the pixel units includes a transmission region including a liquid crystal layer, and a reflection region spaced apart from the transmission region and including an organic light emitting layer.Type: GrantFiled: August 25, 2022Date of Patent: October 24, 2023Inventors: Won Seok Kim, Si Woo Kim
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Patent number: 11800759Abstract: An array substrate is provided. The array substrate includes a respective first anode electrically connected to a respective first light emitting element in a respective first subpixel; a respective second anode electrically connected to a respective second light emitting element in a respective second subpixel; a respective third anode electrically connected to a respective third light emitting element in a respective third subpixel; and a respective fourth anode electrically connected to a respective fourth light emitting element in a respective fourth subpixel. An orthographic projection of the respective third anode on a base substrate substantially covers an orthographic projection of the first initialization connecting line on the base substrate, and covers an orthographic projection of at least portion of the respective third voltage supply line on the base substrate.Type: GrantFiled: October 19, 2020Date of Patent: October 24, 2023Assignees: Cheagdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Jie Dai, Tinghua Shang, Yi Zhang, Tingliang Liu, Siyu Wang, Huijuan Yang
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Patent number: 11790842Abstract: A driving circuit, a display panel, and a display device are provided. In the driving circuit, a first and second light-emitting control sub-circuits are configured to drive a light-emitting unit to emit light; an energy storage element; an operational sub-circuit is configured to compare a voltage at a point where the energy storage element is electrically connected with the operational sub-circuit with a reference voltage to obtain an output signal; a first data input sub-circuit is turned on or off according to the output signal, and when turned on, transmit a first data signal to the first and second light-emitting control sub-circuits to drive the light-emitting unit to emit light; a second data input sub-circuit is configured to be turned on or off according to the output signal, and when turned on, transmit a second data signal to the first and second light-emitting control sub-circuits to drive the light-emitting unit to emit light.Type: GrantFiled: June 14, 2023Date of Patent: October 17, 2023Assignee: HKC CORPORATION LIMITEDInventors: Renjie Zhou, Rongrong Li
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Patent number: 11790852Abstract: A display panel is provided in embodiments of the disclosure and includes multiple pixel units arranged in a matrix. The multiple pixel units are configured to receive data signals for image display. Each of the multiple pixel units includes a first display unit and a second display unit. The first display unit and the second display unit are connected in parallel between a first drive-voltage end and a second drive-voltage end. The first drive-voltage end is configured to receive a first drive voltage, and the second drive-voltage end is configured to receive a second drive voltage. During continuous display of two frames of images, when a first frame of image in the two frames of images is displayed, the first drive voltage is greater than the second drive voltage, and the first drive voltage and the second drive voltage cooperate to drive the first display unit to perform image display.Type: GrantFiled: June 7, 2023Date of Patent: October 17, 2023Assignee: HKC CORPORATION LIMITEDInventors: Renjie Zhou, Haoxuan Zheng
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Patent number: 11790846Abstract: A driving method of a display panel includes: determining a brightness band of the display panel, wherein brightness bands include a first brightness band to an Nth brightness band, maximum grayscale brightness of the first brightness band to the Nth brightness band decreases sequentially, and each brightness band includes three Gamma correction curves respectively corresponding to a first light emitting unit, a second light emitting unit, and a third light emitting unit each of an (N?M)th brightness band to the Nth brightness band also corresponds to at least one duty ratio; determining an input data voltage corresponding to at least one light emitting unit based on a Gamma correction curve that corresponds to the determined brightness band and an image to be displayed; and driving the display panel to display the image based on the determined input data voltage, or the determined input data voltage and the duty ratio.Type: GrantFiled: June 10, 2021Date of Patent: October 17, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Wenqiang Zhang, Rongjian Yan, Wenbin Chen
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Patent number: 11785171Abstract: A display device includes a substrate and an active pattern positioned above the substrate and including a plurality of channel regions and a plurality of conductive regions. The display device includes a plurality of scan lines extending substantially in a first direction. The display device includes a data line and a driving voltage line crossing the plurality of scan lines. The display device includes a first transistor including a first channel region among the plurality of channel regions and a first gate electrode. The display device includes a first connector electrically connecting the first gate electrode of the first transistor and a first conductive region among the plurality of conductive regions to each other. The driving voltage line overlaps at least a portion of the first connector along a direction orthogonal to an upper surface of the substrate.Type: GrantFiled: March 7, 2022Date of Patent: October 10, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Se Wan Son, Wang Woo Lee, Moo Soon Ko, Jung Hwa Kim, Jin Sung An, Ji Seon Lee
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Patent number: 11783760Abstract: The present disclosure provides a pixel circuit and a display panel. The pixel circuit controls a conduction time of the driving module according to a connected triangle-wave analog signal, a time controlling analog signal, and a brightness control analog signal connected through an analog comparator, and controls a conduction degree of the driving module according to a brightness control analog signal connected through the analog comparator; thus a light-emitting time and/or luminous brightness of a light-emitting module is controlled, and multi-gray-scale display with a simpler pixel circuit structure is realized.Type: GrantFiled: September 22, 2021Date of Patent: October 10, 2023Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Lei Wu, Mian Zeng, Liang Sun
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Patent number: 11783771Abstract: Disclosed are a display apparatus and a method for controlling same. The disclosed display apparatus and method for controlling same execute a first operation and a second operation to prevent afterimages from appearing on a display panel, the afterimages being significantly reduced by executing the second operation using the history of the first operation.Type: GrantFiled: October 30, 2019Date of Patent: October 10, 2023Assignee: LG ELECTRONICS INC.Inventor: Shin Ho Park
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Patent number: 11776488Abstract: A light-emitting substrate and a display device are provided by the present application. The durations of pre-set periods of a plurality of driving circuits decrease along a direction from close to data signal input terminals to away from the data signal input terminals, and/or durations of the pre-set periods of the plurality of driving circuits decrease along a direction from close to first control signal input terminals to away from the first control signal input terminals, which the light-emitting luminance of the light-emitting elements at a near-end and far-end solving a display problem with the display device.Type: GrantFiled: November 26, 2020Date of Patent: October 3, 2023Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Yan Li, Yihe Zhang, Lixia Li, Haiyan Quan, Duyeon Han
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Patent number: 11778888Abstract: Disclosed is an electroluminescent display device comprising an active area for displaying an image, a dummy area provided in the periphery of the active area, wherein an image is not displayed in the dummy area, a scan line, an initializing line and an emission line arranged along a first direction in the dummy area, a high power source line and a data line arranged along a second direction, which intersects with the first direction, in the dummy area, and a plurality of thin film transistors disposed in the dummy area, wherein the plurality of thin film transistors include a driving thin film transistor, a switching thin film transistor provided to connect the driving thin film transistor and the data line with each other, and an operation control thin film transistor provided to connect the driving thin film transistor and the high power source line with each other, wherein the switching thin film transistor and the operation control thin film transistor are disconnected from each other.Type: GrantFiled: December 14, 2020Date of Patent: October 3, 2023Assignee: LG Display Co., Ltd.Inventors: BoYoung Jung, Youngsun Jang, HongGyu Han, Taewon Lee
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Patent number: 11775067Abstract: An image display device includes a display panel having a plurality of pixels, and a photoresistor pattern formed in a non-light emitting area between the plurality of pixels; a panel driving controller to drive light-emission control lines of the display panel; and a bio-signal detector that detects an output voltage of the photoresistor pattern which resistance is variable based on light reflected from the target object, and detects a bio-signal of the target object based on the detected output voltage, thereby, detecting the bio-signal of the target object using the image display light from the display panel may allow efficiently detecting the bio-signal without a separate light source or light source operation circuit for detecting the bio-signal.Type: GrantFiled: December 20, 2021Date of Patent: October 3, 2023Assignee: LG DISPLAY CO., LTD.Inventor: Jungtae Bae
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Patent number: 11776460Abstract: Active control of light emitting diodes (LEDs) and LED packages within LED displays is disclosed. LED packages are disclosed that include a plurality of LED chips that form at least one LED pixel for an LED display or an LED panel. Each LED package may include an active electrical element that is configured to receive a control signal and actively maintain an operating state, such as brightness or grey level while other LED packages are being addressed. Active electrical elements are disclosed that are configured to provide both forward and reverse bias states to LEDs to detect adverse operating conditions including reverse leakage and deviations to forward voltage levels. LED packages are also disclosed that may self-configure based on the manner in which various input or output lines are connected.Type: GrantFiled: August 16, 2019Date of Patent: October 3, 2023Assignee: CreeLED, Inc.Inventor: Christopher P. Hussell
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Patent number: 11769440Abstract: A display device includes a matrix of pixel units each including a light-emitting element and a pixel circuit that causes the light-emitting element to emit light. The pixel circuit includes a first driver that drives the light-emitting element in response to the gradation value of an image in a range of gradation values less than or equal to a first boundary value and does not drive the light-emitting element in response to the image gradation value in a range of gradation values greater than the first boundary value, and a second driver that does not drive the light-emitting element in response to the image gradation value in a range of gradation values less than or equal to a second boundary value and drives the light-emitting element in response to the image gradation value in a range of gradation values greater than the second boundary value.Type: GrantFiled: February 1, 2021Date of Patent: September 26, 2023Assignee: KYOCERA CORPORATIONInventor: Takanobu Suzuki
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Patent number: 11763749Abstract: A display system includes a display that has a first display area and a second display area. Each display area includes a plurality of subpixels, and each subpixel includes a light emitting device. A first power system is configured to output a first power supply positive voltage and a first power supply negative voltage to drive subpixels in the first display area. A second power system is configured to output a second power supply positive voltage and a second power supply negative voltage to drive subpixels in the second display area.Type: GrantFiled: October 12, 2020Date of Patent: September 19, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Shiangruei Ouyang, Chujung Shih
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Patent number: 11763748Abstract: A control circuit of a pixel-addressable display corrects a brightness of a pixel element of a pixel circuit of the display based on a curvature of a curvable area of the display. The control circuit selectively applies data line voltages to the pixel circuit. The pixel circuit applies a driving voltage to the pixel element based on the data line voltages.Type: GrantFiled: October 21, 2019Date of Patent: September 19, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Dehuei Chen, Ann Alejandro Villegas
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Patent number: 11760258Abstract: One or more indicators provide an indication of the energy source of power for one or more vehicles. The indicators may be positioned on a vehicle and/or on other structures such as parking garages, tunnels, and entrance gates. The indicators may be visual and/or acoustic. On a vehicle the indicators are positioned to most likely be intact during and after an accident and provide a predetermined indication that identifies an energy source that provides power for the vehicle.Type: GrantFiled: May 12, 2021Date of Patent: September 19, 2023Inventor: William S. Lerner
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Patent number: 11763717Abstract: The present invention provides a drive-control method and control apparatus of display screens, and a display screen thereof, the method includes: determining a staged target gray-scale value of all sub-pixels in the currently scanned row, based on a current gray-scale value of each sub-pixel, the staged target gray-scale value and a pre-stored look-up table, determining the charging-discharging target count corresponding to each column channel in the current scan row, terminating the charging-discharging of the column channel, when the count of the counter is consistent with the target count corresponding to the charging or discharging of each column channel. The present invention in implementation not only has simple structure and a small scale circuit, but also low power consumption.Type: GrantFiled: March 2, 2022Date of Patent: September 19, 2023Assignee: SUZHOU JIAOTU ELECTRONICS CO. LTD.Inventor: Qingqing Xie
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Patent number: 11763747Abstract: A pixel driving circuit, a display panel, and a display device are provided. A first driving module and a second driving module of the pixel driving circuit each are electrically connected with a light-emitting unit, a first power-supply terminal, and a second power-supply terminal. The first driving module is configured to receive a first voltage from the first power-supply terminal and receive a second voltage from the second power-supply terminal according to a first scanning signal and a data signal. The second driving module is configured to receive the second voltage from the first power-supply terminal and receive the first voltage from the second power-supply terminal according to a second scanning signal and the data signal. The first driving module and the second driving module alternately drive the light-emitting unit to emit a light.Type: GrantFiled: June 7, 2023Date of Patent: September 19, 2023Assignee: HKC CORPORATION LIMITEDInventors: Renjie Zhou, Haoxuan Zheng
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Patent number: RE49714Abstract: An organic light emitting display capable of substantially preventing IR drop of a power source wiring line and coupling of data lines is disclosed. In one aspect, the organic light emitting display includes pairs of data lines between adjacent sub-pixels. The data lines are arranged to run parallel with a coupling blocking wiring line provided between each pair.Type: GrantFiled: June 8, 2020Date of Patent: October 24, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ki-Nyeng Kang, Na-Young Kim