Electroluminescent Patents (Class 345/76)
-
Patent number: 12170057Abstract: A light-emitting circuit includes a first transistor, a second transistor, a light-emitting element, a first switching circuit, a second switching circuit, a first capacitor, a current source, and a third switching circuit. The first switching circuit, the second switching circuit, and the third switching circuit are synchronously turned on or synchronously turned off. This not only controls the current flowing through the first switching circuit through the first capacitor, the second switching circuit and the current source to the third power line, and but also controls the current flowing through the third switching circuit, the second transistor through the first capacitor, the second switching circuit and the current source flow to the third power line. Since the current passes through the first transistor and the second transistor, the current flowing through the light-emitting element is reduced, improving adverse effects of parasitic capacitance and wire resistance to the two transistors.Type: GrantFiled: December 17, 2023Date of Patent: December 17, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yamei Bai, Tianhong Wang
-
Patent number: 12170038Abstract: A device includes a backplane and a plurality of elements arranged on the backplane. The plurality of elements form an irregular pattern. The backplane includes a plurality of circuits. The plurality of elements are coupled to the plurality of circuits by conductive vias that are regularly spaced.Type: GrantFiled: January 11, 2024Date of Patent: December 17, 2024Assignee: Pacific Light & Hologram, Inc.Inventors: Jonathan Seamus Blackley, Watson Brent Boyett, Sylvain Marcel Colin, Robin James Green, Stephen John Hart, Margaret H. Hsu, DeaGyu Kim, Mark Anthony Loya, Benjamin Francis Neil, Kamran Qaderi, Tina Qin, Jesus Manuel Caridad Ramirez, Jayakrishna Sashidharan, Asher Zelig Sefami, Sameer Sudhir Walavalkar, Joshua D. Wiensch
-
Patent number: 12167646Abstract: A pixel includes a light emitting element including an anode and a cathode, a first transistor connected between the anode and a first power line and switched by a voltage of a node, a second transistor connected between the first transistor connected to the first power line and a data line and switched by a write scan signal, a third transistor connected between the node and the anode and switched by a compensation scan signal, and an insulating layer covering the second and third transistors. A first groove is defined in a portion of the insulating layer adjacent to the third transistor.Type: GrantFiled: March 31, 2022Date of Patent: December 10, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wonwoo Choi, Jaechung Kim, Jaeik Lim, In-Bae Kim
-
Patent number: 12165593Abstract: A display panel and a display device. The display panel comprises: a substrate, a display area (100) provided with at least one light-emitting signal line (E), at least one first reset signal line (R) and sub-pixels arranged in an array, at least one sub-pixel (P1, P2, P3) comprising: a light-emitting device (L) and a pixel circuit. The first reset signal line (R) is configured to provide a reset control signal for the pixel circuit, the light-emitting signal line is configured to provide a light-emitting control signal for the pixel circuit to provide a driving current. For the first reset signal line and the light-emitting signal line E connected to a same pixel circuit, the duration in which the signal of the light-emitting signal line is an invalid level signal is equal to the duration in which the signal of the first reset signal line is a valid level signal.Type: GrantFiled: July 21, 2022Date of Patent: December 10, 2024Assignees: Beijing BOE Technology Development Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Hongting Lu, Hang Dong, Xing Huang, Xingyu Chen, Lian Xiang, Yanping Ren, Xueying He, Changlong Yuan
-
Patent number: 12165579Abstract: An electroluminescent display device using a variable refresh rate (VRR) mode. The occurrence of a difference in luminance at a time point of a refresh rate change is reduced, thereby preventing viewers from perceiving the change of the refresh rate.Type: GrantFiled: October 11, 2023Date of Patent: December 10, 2024Assignee: LG Display Co., Ltd.Inventors: Moonsoo Chung, Wookyu Sang
-
Patent number: 12167653Abstract: A display substrate and a manufacturing method therefor, and a display apparatus. The display substrate includes a base substrate, a second power line, a data signal line and a plurality of sub-pixels, wherein at least one sub-pixel includes a pixel driving circuit and a light emitting device connected to the pixel driving circuit, the pixel driving circuit is connected to the data signal line and the light emitting device is connected to the second power line; a semiconductor layer and a plurality of conducting layers, which are disposed at one side of the semiconductor layer away from the base substrate, are disposed on the base substrate, a first electrode is arranged on at least one conducting layer.Type: GrantFiled: May 31, 2021Date of Patent: December 10, 2024Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Can Zheng, Li Wang, Hao Zhang, Yipeng Chen, Ke Liu
-
Patent number: 12165582Abstract: A display panel is provided. In the display panel, a width-to-length ratio of a sub-channel of a compensation transistor adjacent to a drive transistor is less than a width-to-length ratio of a channel of a first initialization transistor, so that an effect of an increase in an electrical potential of a gate of the drive transistor affected by an electrical leakage of the compensation transistor is canceled by an effect of a decrease in the electrical potential of the gate of the drive transistor affected by an electrical leakage of the first initialization transistor, so as to prevent an electrical leakage of each transistor from causing changes in the electrical potential of the gate of the drive transistor, thereby reducing a problem of the flickering display.Type: GrantFiled: May 13, 2022Date of Patent: December 10, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Kai Lu
-
Patent number: 12159568Abstract: A pixel driving circuit, a driving method thereof, and a display panel are disclosed. A second transistor stores a threshold voltage of a first transistor in a first capacitor according to a second scan signal, so as to compensate an influence of the threshold voltage on a driving current. A fifth transistor makes a voltage difference between a first node and a second node irrelevant to a second voltage signal according to a fourth scan signal, so as to improve a current attenuation issue caused by a voltage drop during a signal transmission.Type: GrantFiled: April 22, 2022Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Bin Liu
-
Patent number: 12159591Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.Type: GrantFiled: October 5, 2023Date of Patent: December 3, 2024Assignee: LG DISPLAY CO., LTD.Inventors: SeongHo Cho, DaeSung Jung, HwanJoo Lee, Haksu Kim
-
Patent number: 12159587Abstract: A sensing circuit and a display device including the same. The sensing circuit includes: a data driver configured to supply data voltage, which is increased stepwise, to the data line during a sensing time; a gate driver configured to supply gate signals to the gate lines during the sensing time; and an analog-to-digital converter configured to convert a sensing voltage on the sensing line into digital data during the sensing time.Type: GrantFiled: October 16, 2023Date of Patent: December 3, 2024Assignee: LG Display Co., Ltd.Inventors: Do Young Jung, Byeong Seong So
-
Patent number: 12154496Abstract: Disclosed are a display panel, a display device and a driving method. The display panel includes a plurality of sub-pixel units located in areas formed by the plurality of scanning signal lines and the plurality of data signal lines, and at least two adjacent sub-pixel units in the first direction and the second direction constitute a pixel island. A plurality of control units each corresponding to a sub-pixel unit row in the pixel island are provided. The control unit includes a control terminal, an input terminal and an output terminal. The control unit is configured to transmit a signal from the input terminal to the output terminal under control of a first signal transmitted by a control signal line corresponding to the control unit, and stop transmitting the signal from the input terminal to the output terminal under control of a second signal transmitted by the control signal line.Type: GrantFiled: February 26, 2021Date of Patent: November 26, 2024Assignees: BOE MLED TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shaolei Zong, Jigang Sun, Rui Liu, Xin Duan, Wei Sun, Junwei Zhang, Hongrun Wang, Fuqiang Li, Changfeng Sun, Hui Zhang, Xue Dong
-
Patent number: 12153723Abstract: A system for providing an augmented reality, a virtual reality, and/or a mixed reality experience to a user includes a first display and a second display. The user views a real-world environment through the first display and the second display. The system includes a wearable visualization device that includes the first display and a fixed visualization device that includes the second display. The first display is configured to display a first layer of virtual features and the second display is configured to display a second layer of virtual features. The system includes a processor configured to generate the first layer of virtual features and the second layer of virtual features. The processor is configured to operatively communicate with the wearable visualization device and the fixed visualization device to coordinate presentation of the first layer of virtual features and the second layer of virtual features.Type: GrantFiled: October 17, 2017Date of Patent: November 26, 2024Assignee: Universal City Studios LLCInventors: Gregory Shellman Hall, David Gerard Majdali
-
Patent number: 12148373Abstract: A display device includes a display panel, a scan driver, a data compensator, and a data driver. The display panel includes a first area and a second area distinguished from each other along a scan direction. Each of the first and second areas include pixels. The scan driver is configured to sequentially provide scan signals to the display panel along the scan direction. The data compensator is configured to: detect a pattern in which a difference between adjacent grayscale values in image data is greater than a reference value; and generate compensated image data by compensating for grayscale values corresponding to the second area in the image data based on the pattern corresponding to the first area. The data driver is configured to: generate data signals based on the compensated image data; and provide the data signals to the display panel.Type: GrantFiled: May 3, 2022Date of Patent: November 19, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Se Byung Chae, Weon Jun Choe
-
Patent number: 12150340Abstract: Embodiments disclose a display panel and a display device including the display panel. The display panel includes a first area in which a plurality of first pixels are disposed, a second area including a pixel area in which a plurality of second pixels are disposed and a plurality of light-transmitting areas disposed between the plurality of second pixels, and a polarizing plate including a plurality of first light-transmitting patterns disposed in the plurality of light-transmitting areas, wherein, in the polarizing plate, an area in which the first light-transmitting patterns are formed has a higher light transmittance than a remaining area in which the first light-transmitting patterns are not formed.Type: GrantFiled: June 25, 2021Date of Patent: November 19, 2024Assignee: LG Display Co., Ltd.Inventors: Jung Hun Choi, Sung Jin Park, Juhn Suk Yoo
-
Patent number: 12148384Abstract: Display devices are disclosed. In one example, a display device includes light emitting element groups each including light emitting element units, each of the light emitting element units including first, second and third light emitting elements. Each of the light emitting element groups includes first drive circuits that drive the first light emitting elements, second drive circuits that drive the second light emitting elements, and third drive circuits that drive the third light emitting elements, and in each of the light emitting element groups, the number of first drive circuits is equal to the number of first light emitting elements, the number of second drive circuits is less than the number of second light emitting elements, and the number of third drive circuits is less than the number of third light emitting elements.Type: GrantFiled: July 27, 2023Date of Patent: November 19, 2024Assignee: Sony Group CorporationInventor: Tetsuo Minami
-
Patent number: 12150336Abstract: The present disclosure relates to a display device. More particularly, the present disclosure relates to a display device capable of enhancing efficiency of light emitted from a light-emitting element. A display device according to an embodiment includes a substrate on which areas of pixels composed of multiple subpixels are arranged, a circuit element layer in which circuit elements constituting the multiple subpixels are provided, a light-emitting element layer in which light-emitting elements constituting the multiple subpixels are provided, and a lens placed corresponding to the light-emitting element.Type: GrantFiled: December 8, 2020Date of Patent: November 19, 2024Assignee: LG Display Co., Ltd.Inventors: Jungeun Lee, Chulho Kim, Namkook Kim, Sungwoo Choi, Hwankeon Lee, Youngkyun Moon, Jihun Lee
-
Patent number: 12142193Abstract: A display apparatus includes pixels. Each of the pixels includes a first node controller applying a data voltage to a first node, a second node controller shifting a voltage of a second node from a low level driving voltage to an on pulse voltage, a third node controller applying a reference voltage having an on level to a third node during a first period in one frame and applying the low level driving voltage to the third node during a second period, a driving transistor being on-duty-driven during the first period and off-duty-driven during the second period, and a light emitting device including an anode electrode connected to the second electrode of the driving transistor and a cathode electrode. The light emitting device emits light responsive to a constant current applied from the driving transistor during the first period and does not emit light during the second period.Type: GrantFiled: October 4, 2022Date of Patent: November 12, 2024Assignee: LG Display Co., Ltd.Inventors: Yong Chul Kwon, Jong Min Park, Joon Hee Lee
-
Patent number: 12144226Abstract: A display device includes a substrate including a display area and a pad area; a thin film transistor in the display area; a light emitting film layer on the thin film transistor; an encapsulation layer on the light emitting film layer; a touch buffer layer on the encapsulation layer; a bridge, first touch electrodes and second touch electrodes disposed on the touch buffer layer; a touch insulating film disposed between the bridge and the first touch electrodes and the second touch electrodes; a touch pad in the pad area; a touch sensing line connected to the first touch electrodes; and a touch driving line connected to the second touch electrodes, wherein at least one of the touch sensing line and the touch driving line is provided on a side surface of the encapsulation layer.Type: GrantFiled: July 8, 2021Date of Patent: November 12, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Yangsik Lee, JiHyun Jung, SuChang An, JaeGyun Lee, Ruda Rhe
-
Patent number: 12142226Abstract: An electronic device includes a display panel including pixels respectively connected to scan lines, scan stages corresponding to the scan lines, where each of the scan stages receives a carry signal, and outputs a scan signal, masking circuits electrically connected to some of the scan stages, respectively, where each of the masking circuits outputs a masking carry signal in response to a masking signal and the scan signal, and transmission circuits electrically connected to others of the scan stages, respectively, where each of the transmission circuits outputs the scan signal output from a corresponding scan stage among the scan stages. A j-th (j is an integer greater than 1) scan stage among the scan stages receives one of the scan signal output from a (j?1)-th scan stage and the masking carry signal as the carry signal.Type: GrantFiled: September 6, 2023Date of Patent: November 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Heerim Song, Gyungsoon Park, Jinseok Jeong
-
Patent number: 12142221Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a lower substrate including a display area and a non-display area surrounding the display area, wherein a plurality of pixels are formed in the display area. The OLED display also includes an embedded circuit formed in the configured to apply a plurality of signals to the pixels, and an initialization wiring formed in the non-display area and configured to apply an initialization voltage to each of the pixels. The initialization circuit is formed in a layer so as to at least partially overlap with the area of the embedded circuit.Type: GrantFiled: July 18, 2023Date of Patent: November 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Chang-Soo Pyon
-
Patent number: 12142070Abstract: An electronic device includes a first substrate, a second substrate, a light-impermeable layer, a light-emitting unit, and a photosensor. The second substrate is opposite to the first substrate. The light-impermeable layer is disposed between the first substrate and the second substrate and includes a first opening and a second opening. The light-emitting unit is disposed between the first substrate and the second substrate and overlapped with the first opening. The photosensor is disposed on the first substrate and overlapped with the second opening.Type: GrantFiled: November 10, 2022Date of Patent: November 12, 2024Assignee: Innolux CorporationInventors: Chandra Lius, Kuan-Feng Lee, Tsung-Han Tsai, Chung-Wen Yen, Chiu-Lien Yang
-
Patent number: 12144202Abstract: According to one embodiment, in a manufacturing method of a display device, a first lower electrode, a second lower electrode and a third lower electrode are formed. A rib having first aperture overlapping the first lower electrode, a second aperture overlapping the second lower electrode, and a third aperture overlapping the third lower electrode is formed. A first thin film including a first light emitting layer is formed on the first lower electrode. A second thin film including a second light emitting layer is formed on the second lower electrode. An area of the first aperture is larger than an area of the second aperture.Type: GrantFiled: August 2, 2023Date of Patent: November 12, 2024Assignee: JAPAN DISPLAY INC.Inventors: Yuko Matsumoto, Kaichi Fukuda
-
Patent number: 12136394Abstract: An electronic device includes a display having multiple regions of pixels. Each pixel includes a diode that emits light based on an amount of current through the diode and a transistor that controls the amount of current flowing through the diode. The electronic device includes driver-integrated circuitry that reduces hysteresis in a first transistor of a first pixel of a region of pixels, settles a threshold voltage of the first transistor, applies a test voltage to the first transistor, and senses a current across the first transistor. The electronic device includes processing circuitry that determines a predetermined voltage based on the current and a predetermined current-voltage relationship determined at an initial temperature, determines a voltage difference between the test voltage and the predetermined voltage, and applies the predetermined voltage and the voltage difference to a second transistor of a second pixel of the region of pixels.Type: GrantFiled: February 26, 2020Date of Patent: November 5, 2024Assignee: Apple Inc.Inventors: Hyunwoo Nho, Myungjoon Choi, Hyunsoo Kim, Mohammad Ali Jangda, Jie Won Ryu, Shiping Shen, Kingsuk Brahma, Chaohao Wang, Wei H. Yao, Alex H. Pai
-
Patent number: 12136381Abstract: A display device includes a display area which displays an image, and a non-display area disposed around the display area and including a pad part. The display area includes pixels of a first pixel row which are pixels arranged in a first direction along the first pixel row, pixels of a second pixel row, which are pixels arranged in the first direction along the second pixel row next to the first pixel row, and pixel circuits of a first circuit row which are pixel circuits arranged in the first direction along the first circuit row, where the pixel circuits of the first circuit row are electrically connected to the pixels of the first pixel row, respectively. The first pixel row and the first circuit row are spaced apart from each other with the second pixel row interposed therebetween.Type: GrantFiled: June 17, 2022Date of Patent: November 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun Ki Jeong, Hyun Joon Kim, Kye Uk Lee, Sang Jin Jeon, Jung Hwan Hwang
-
Patent number: 12133407Abstract: In non-limiting example embodiments, an electroluminescent device may include a lower structure including an emission area, and an encapsulation structure located on the lower structure. The lower structure may include a window. The window may be a light transmitting region or a notch. The light transmitting region may be spaced apart from the emission area and completely or partially surrounded by the emission area in a plan view. The notch may be formed at one side of the lower structure and recessed inward in a plan view such that one side of the emission area substantially conforms to the notch.Type: GrantFiled: August 19, 2021Date of Patent: October 29, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Myoung Seo Park
-
Patent number: 12131680Abstract: A display apparatus includes a display panel and a display panel driver. The display panel includes a first display area having a first pixel structure and a second display area having a second pixel structure different from the first pixel structure. The display panel driver drives the display panel in a first mode when an image complexity of input image data corresponding to a determination area which includes the first display area is greater than a threshold value and to drive the display panel in a second mode different from the first mode when the image complexity of the input image data is less than or equal to the threshold value.Type: GrantFiled: October 13, 2022Date of Patent: October 29, 2024Assignee: Samsung Display Co., Ltd.Inventors: Deokhwa Woo, Myungwoo Lee
-
Patent number: 12133449Abstract: The present disclosure provides a display substrate and a display device, and belongs to the field of display technology. The display substrate provided by the present disclosure has a display area and a peripheral area surrounding the display area, and includes a substrate; a plurality of pixel circuits on the substrate and in the display area; and a plurality of dummy pixel circuits on the substrate and in the peripheral area; wherein the number of transistors in each dummy pixel circuit is smaller than the number of transistors in each pixel circuit. Because the number of the transistors in the dummy pixel circuit is smaller than the number of the transistors in the pixel circuit, space occupied by the dummy pixel circuit in the peripheral area can be reduced, thereby facilitating realization of a display device with a narrow bezel.Type: GrantFiled: October 21, 2020Date of Patent: October 29, 2024Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yupeng He, Yang Zhou, Yao Huang, Xin Zhang, Yu Wang
-
Patent number: 12131701Abstract: The present application discloses a display panel, an integrated chip and a display apparatus. The display panel includes: a first display area and a second display area; and pixel circuits including first pixel circuits and second pixel circuits, wherein the first pixel circuits are configured to provide driving currents to light emitting elements of the first display area, and the second pixel circuits are configured to provide driving currents to light emitting elements of the second display area, the pixel circuits receive a bias adjustment signal, the bias adjustment signal includes a first bias adjustment signal and a second bias adjustment signal, the first pixel circuits receive the first bias adjustment signal, and the second pixel circuits receive the second bias adjustment signals, a voltage value of the first bias adjustment signal is V1, and a voltage value of the second bias adjustment signal is V2, wherein V1?V2.Type: GrantFiled: January 30, 2023Date of Patent: October 29, 2024Assignee: XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD.Inventors: Jieliang Li, Ping An, Guoxing Chen, Yuping Xu
-
Patent number: 12124122Abstract: A display device includes a light emitter located on a first light-transmissive substrate, a second light-transmissive substrate facing the first light-transmissive substrate, a first light-shielding layer located on the first light-transmissive substrate and located away from the light emitter, a second light-shielding layer located on the second light-transmissive substrate and located away from a first portion facing the first light-shielding layer, a first light output section between the first light-shielding layer and the first portion and switchable between a transmissive state and a scattering state, and a second light output section between the second light-shielding layer and a second portion located on the first light-transmissive substrate and facing the second light-shielding layer. The second light output section is switchable between the transmissive state and the scattering state.Type: GrantFiled: August 2, 2021Date of Patent: October 22, 2024Assignee: KYOCERA CORPORATIONInventor: Masaya Tamaki
-
Patent number: 12125425Abstract: A pixel may include a light emitting element; a data write transistor that writes a data voltage; a driving transistor that applies a driving current to the light emitting element based on the data voltage; a hold capacitor including a first electrode to which a first power supply voltage is applied, and a second electrode electrically connected to a first node; a storage capacitor including a first electrode electrically connected to the first node, and a second electrode electrically connected to a control electrode of the driving transistor; at least one polysilicon thin film transistor; and at least one oxide thin film transistor. The at least one oxide thin film transistor may be disposed between the at least one polysilicon thin film transistor and the hold capacitor, or between the at least one polysilicon thin film transistor and the storage capacitor.Type: GrantFiled: October 3, 2022Date of Patent: October 22, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Junhyun Park, Jangmi Kang, Minjae Jeong
-
Patent number: 12117743Abstract: An exposure head includes a light emitting board group, a first lens array, and a second lens array. The light emitting board group disposes a plurality of light emitting boards each including a plurality of light emitting elements disposed side by side in a second direction intersecting with the first direction. The plurality of light emitting boards are disposed along the second direction and alternately in the first direction. The light emitting board group includes a first light emitting board group and a second light emitting board group. The first lens array condenses light emitted from the plurality of light emitting elements disposed on the first light emitting board group onto the surface of the image bearing member. The second lens array condenses light emitted from the plurality of light emitting elements disposed on the second light emitting board group onto the surface of the image bearing member.Type: GrantFiled: December 8, 2022Date of Patent: October 15, 2024Assignee: Canon Kabushiki KaishaInventor: Shunsaku Kondo
-
Patent number: 12118906Abstract: A method for sensing a display panel includes: sensing an electrical characteristic parameter of a driving transistor of a pixel circuit of a sub-pixel in an X-th row in a blank stage between an N-th frame and an (N+1)-th frame, wherein X is a random number, and both N and X are positive integers.Type: GrantFiled: May 28, 2021Date of Patent: October 15, 2024Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xiaolong Wei, Fei Yang, Song Meng, Jingbo Xu, Jianbo Xian
-
Patent number: 12118937Abstract: A display device may include a pixel, an emission control driver, and a timing controller. The emission control driver may supply an emission control signal set for controlling emission periods of the pixel. The timing controller may receive a received bit stream that includes a first bit set and a second bit set, may determine a first duty ratio of the emission control signal set using bits of the first bit set without using any bit of the second bit set. The first bit set may include at least two bits. The second bit set may include at least one bit. The emission control signal set may control the pixel to operate according to the first duty ratio for each frame of a first frame group.Type: GrantFiled: July 3, 2023Date of Patent: October 15, 2024Assignee: Samsung Display Co., Ltd.Inventors: Jeong Min Sung, Woo Chul Kim, Weon Jun Choe
-
Patent number: 12120930Abstract: A display device includes: a plurality of pixels each including a driving thin film transistor and a storage capacitor, wherein each of the pixels further includes: a driving semiconductor layer including a driving channel region, a driving source region, and a driving drain region; a first electrode layer, a portion of the first electrode layer overlapping the driving channel region; a second electrode layer overlapping the first electrode layer; a node connection line having a first side connected to the first electrode layer; a pixel electrode overlapping the first electrode layer and the second electrode layer; and a shielding layer between the first electrode layer and the pixel electrode and overlapping the first electrode layer, the node connection fine, and the pixel electrode.Type: GrantFiled: July 14, 2023Date of Patent: October 15, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seungkyu Lee, Taehoon Kwon, Byungsun Kim
-
Patent number: 12120914Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate, and the pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; the first transistor includes a first active region, the second transistor includes a second active region, the driving transistor includes a fourth active region, at least one of a doping concentration of the first active region and a doping concentration of the second active region is greater than a doping concentration of the fourth active region.Type: GrantFiled: August 23, 2019Date of Patent: October 15, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dachao Li, Shengji Yang, Chen Xu
-
Patent number: 12118924Abstract: A display device includes pixels, and a power supply to supply a first initialization voltage to the pixels through a first initialization power line, and to supply a second initialization voltage to the pixels through a second initialization power line. At least one of the pixels includes a first transistor, a second transistor, a third transistor, and a light emitting element.Type: GrantFiled: August 8, 2023Date of Patent: October 15, 2024Assignee: Samsung Display Co., Ltd.Inventors: Kyong Hwan Oh, Jin Tae Jeong, Ji Hyun Ka, Won Kyu Kwak, Hyung Jun Park, Chang Soo Pyon, Ji Eun Lee, Hai Jung In, Won Mi Hwang
-
Patent number: 12120931Abstract: A display apparatus includes: a first pixel circuit on the substrate and including a first driving thin-film transistor and a first storage capacitor electrically connected to the first driving thin-film transistor; a second pixel circuit adjacent to the first pixel circuit and including a second driving thin-film transistor and a second storage capacitor electrically connected to the second driving thin-film transistor; a first initialization voltage line electrically connected to the first pixel circuit and the second pixel circuit; a second initialization voltage line electrically connected to the first initialization voltage line; and a driving voltage line between the first pixel circuit and the second pixel circuit, wherein a channel area of the first driving thin-film transistor or a channel area of the second driving thin-film transistor is between the second initialization voltage line and the driving voltage line.Type: GrantFiled: April 12, 2021Date of Patent: October 15, 2024Assignee: Samsung Display Co., Ltd.Inventors: Nuree Um, Mihae Kim, Minjeong Kim, Hyungjun Park, Junyong An
-
Patent number: 12118927Abstract: An electronic apparatus includes a first light emitting array and a second light emitting array. The first light emitting array includes first light-emitting units disposed in a first region and a first sub region. The second light emitting array is disposed adjacent to the first light emitting array. The second light emitting array includes second light-emitting units disposed in a second region and a second sub region. The difference between the average brightness in the first region and the average brightness in the second region is in a range from 0% to 20%, and the difference between the average brightness in the first sub region and the average brightness in the second sub region is less than the difference between the average brightness in the first region and the average brightness in the second region.Type: GrantFiled: July 26, 2023Date of Patent: October 15, 2024Assignee: INNOLUX CORPORATIONInventors: Chi-Liang Chang, Yi-Hua Hsu
-
Patent number: 12112704Abstract: A pixel circuit is disclosed that includes first through sixth transistors, first and second capacitors, and a light emitting element. A gate electrode of the second transistor receives a first gate signal. A gate electrode of the third transistor receive a second gate signal. Gate electrodes of each of the fourth and fifth transistors receive a third gate signal. A gate electrode of the sixth transistor receives an emission signal. First electrodes of the first transistor and the first capacitor each receive a first power supply voltage. A cathode electrode of the light emitting element receives a second power supply voltage. A first electrode of the fourth transistor receives an initialization voltage.Type: GrantFiled: November 3, 2023Date of Patent: October 8, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yeonkyung Kim, Kwihyun Kim, Dongwoo Kim
-
Patent number: 12112707Abstract: A pixel circuit includes a driving circuit, a first control circuit and a second control circuit. The driving circuit is configured to receive a data signal in response to a scan signal, and generate, in response to a first enable signal, a driving signal according to a first voltage and the data signal. The first control circuit is configured to: receive a first input signal in response to a first control signal, and transmit a third input signal in response to the first input signal; and receive a second input signal in response to a second control signal, and transmit a second enable signal in response to the second input signal. The second control circuit is configured to transmit the driving signal to an element to be driven in response to one of the third input signal and the second enable signal.Type: GrantFiled: April 27, 2023Date of Patent: October 8, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Li Xiao, Haoliang Zheng, Hao Chen, Minghua Xuan, Dongni Liu, Seungwoo Han, Liang Chen, Jiao Zhao, Xue Dong
-
Patent number: 12106706Abstract: A pixel of a display device includes a first transistor including a top gate coupled to a first node, a first terminal, a second terminal coupled to a second node, and a bottom gate, a second transistor including a gate coupled to a writing signal line, a first terminal coupled to a data line, and a second terminal coupled to the first node, a storage capacitor coupled between the first node and the second node, a light emitting element coupled between the second node and a second power supply voltage line, and a seventh transistor including a gate coupled to an initialization signal line, a first terminal coupled to a bias voltage line, and a second terminal coupled to the bottom gate.Type: GrantFiled: July 20, 2023Date of Patent: October 1, 2024Assignee: Samsung Display Co., Ltd.Inventors: Minjae Jeong, Jangmi Kang, Hyeongseok Kim, Junhyun Park, Mukyung Jeon
-
Patent number: 12106704Abstract: An electronic device is provided. The electronic device includes an integrated driver board and at least one semiconductor unit substrate. The integrated driver board includes a circuit board, a data drive circuit, and a scanning drive circuit. The data drive circuit and the scanning drive circuit are disposed on the circuit board. The at least one semiconductor unit substrate is coupled to the data drive circuit and the scanning drive circuit.Type: GrantFiled: March 22, 2023Date of Patent: October 1, 2024Assignee: Innolux CorporationInventors: Yu-Hsin Feng, Yu-Tse Lu, Ming-Chi Weng
-
Patent number: 12106708Abstract: The disclosure describes various aspects of backplanes, including unit cells, architectures, and operations. In an aspect, a backplane unit cell is described that includes first and second switches, a storage element, a comparator, a source (e.g., a current or voltage source), where the source generates a drive signal to control light emission of a selected one of the light emitting elements in a display, and where the drive signal is based on a power signal selected by the second switch. In another aspect, a device is described that includes a backplane configured in an active matrix topology including multiple data columns and multiple row selects; and a set of electrical contacts associated with the active matrix topology and configured to electrically couple the backplane with the display, the display having multiple light emitting elements configured in a passive matrix topology. Methods of operation of the backplane are also described.Type: GrantFiled: July 24, 2023Date of Patent: October 1, 2024Assignee: GOOGLE LLCInventor: Gang He
-
Patent number: 12101885Abstract: A server motherboard includes a protective film, a substrate, and a power supply circuit. An equivalent electrical parameter of the protective film changes as a shape of the protective film changes. The shape changes when a temperature of the server mother board is greater than a predetermined temperature. A portion of at least one side surface of the substrate is covered by the protective film. The power supply circuit is electrically connected to the protective film and configured to detect the equivalent electrical parameter of the protective film. The power supply circuit stops outputting a power supply voltage to the substrate when a change of the equivalent electrical parameter is detected.Type: GrantFiled: September 14, 2021Date of Patent: September 24, 2024Assignee: LENOVO (BEIJING) LIMITEDInventor: Yongbin Hu
-
Patent number: 12099270Abstract: A display device is provided and includes display panel including first substrate, lower electrode on first substrate, lower alignment layer with first alignment direction on lower electrode, second substrate, upper electrode on second substrate, upper alignment layer with first alignment direction on upper electrode, and liquid crystalline polymers with striped structure and liquid crystal molecules which are aligned in first alignment direction, and which are disposed between first and second substrates; light source unit disposed at side of display panel and configured to emit incident light which is not polarized; and light guided structure disposed between side of display panel and light source unit, wherein light source unit is disposed in parallel to first alignment direction and light which is emitted from display panel is polarized in first alignment direction.Type: GrantFiled: December 13, 2023Date of Patent: September 24, 2024Assignee: Japan Display Inc.Inventors: Kentaro Okuyama, Akira Sakaigawa
-
Patent number: 12101982Abstract: A pixel structure, a driving method thereof, a display panel, and a display apparatus are provided. The pixel structure includes: a plurality of pixel rows and a plurality of pixel columns. Each pixel row includes: sub-pixels of four different colors. The plurality of pixel columns include: a plurality of first pixel columns and a plurality of second pixel columns arranged alternately. Each of the first pixel columns includes: sub-pixels of three of the four different colors. Each of the second pixel columns includes: sub-pixels of another color other than the three of the four different colors.Type: GrantFiled: April 27, 2021Date of Patent: September 24, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Zhijian Zhu, Pengcheng Lu, Chenyu Chen, Shengji Yang, Xiaochuan Chen, Yan Sun, Tiankuo Shi, Xiaomang Zhang, Yuanlan Tian, Dacheng Zhang
-
Patent number: 12101980Abstract: A transparent display panel and a transparent display device including the same are disclosed. In a transparent display panel, a VSS voltage line does not surround an outer periphery of a display region. Rather, upper and lower VSS voltage lines respectively disposed on upper and lower sides to the display region are electrically connected to each other via at least one VSS voltage connection line extending across the display region. Thus, left and right non-transparent and thick VSS voltage lines disposed on the left and right sides to the display region may be omitted. Thus, a transparent region of the transparent display panel and a bezel of a transparent display device may be increased or maximized or the bezel thereof may be made slim.Type: GrantFiled: December 27, 2022Date of Patent: September 24, 2024Assignee: LG Display Co., Ltd.Inventors: Euitae Kim, Changsoo Kim, Kiseob Shin, Soyi Lee
-
Patent number: 12094411Abstract: Disclosed is a driving method for display unit, a display panel and a display device, a reset circuit is formed by a reset signal, a charging circuit is formed by a charging signal, and a light emitting circuit is formed by a light emitting signal, that is, the circuit in the display device is multiplexed by each control signal, so that it does not need to design a circuit for each function to realize the driving of the display unit, solving the complex problem of driving the display unit in the relevant technology.Type: GrantFiled: December 30, 2022Date of Patent: September 17, 2024Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Mancheng Zhou, Rongrong Li
-
Patent number: 12094425Abstract: A driving device of an electroluminescent display apparatus includes a pixel line determiner selecting a representative pixel line, disposed at a position at which an accumulation stress caused by an input image is largest, from among all pixel lines, a first sensing & driving circuit pre-sensing pixels of the representative pixel line for each color, an over driving control (ODC) controller selecting a color-based sample pixel characteristic value from among pixel characteristic values of the representative pixel line obtained through the pre-sensing and controlling a sensing priority of each color, based on a relative magnitude of a variation amount of the color-based sample pixel characteristic value, a second sensing & driving circuit performing ODC sensing on color pixels of all pixel lines, based on the sensing priority, and a compensation value generator updating compensation values of the color pixels, based on pixel characteristic values of the color pixels obtained through the ODC sensing, wType: GrantFiled: September 22, 2023Date of Patent: September 17, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Moo Kyoung Hong, Sin Kyun Park
-
Patent number: 12094394Abstract: A gate driver includes a carry signal generating circuit and a shift register circuit. The carry signal generating circuit receives a vertical start signal and outputs first and second carry signals. The shift register circuit receives the first and second carry signals and outputs a first stage first carry signal, a first stage second carry signal and a first stage gate output signal. The carry signal generating circuit includes a first carry generator generating the first carry signal and a second carry generator generating the second carry signal. The shift register circuit includes a first stage first carry generator generating the first stage first carry signal, a first stage second carry generator generating the first stage second carry signal and a first stage output buffer outputting the first stage gate output signal.Type: GrantFiled: December 20, 2022Date of Patent: September 17, 2024Assignee: Samsung Display Co., Ltd.Inventor: Hai-Jung In