Patents Examined by Dorothy Harris
-
Patent number: 12190806Abstract: A display panel including a pixel circuit and a light-emitting element, the pixel circuit including a driving transistor, a data writing transistor, a threshold compensation transistor, a first reset transistor, a bias transistor, and a light-emitting control module, the data writing transistor being electrically connected to a first terminal of the driving transistor, the threshold compensation transistor being connected in series between a gate of the driving transistor and a second terminal of the driving transistor, and configured to detect and self-compensate a threshold voltage deviation of the driving transistor, the first reset transistor and the bias transistor being electrically connected to the second terminal of the driving transistor, the light-emitting control module being connected in series with the driving transistor and the light-emitting element to control whether a driving current flows through the light-emitting element, the data writing transistor and the first reset transistor having thType: GrantFiled: December 16, 2022Date of Patent: January 7, 2025Assignee: Xiamen Tianma Display Technology Co., Ltd.Inventors: Shui He, Shanshan Zheng, Jinjin Yang, Jiansheng Zhong, Qiaoling Zhong
-
Patent number: 12190760Abstract: A display system and a power-saving method thereof are provided. In a first standby mode, a control circuit of a display device detects whether a preset pin of a signal input port generates a voltage variation or maintains at a preset voltage value during a preset period. When the control circuit detects the voltage variation or the preset voltage value, the control circuit switches the display device to a second standby mode and generates an output signal according to an input signal received by the signal input port, and allows the output signal to be transmitted to the signal output port, or establishes a network connection according to the input signal. When the control circuit does not detect the voltage variation nor the preset voltage, the first standby mode is maintained by the control circuit.Type: GrantFiled: February 6, 2024Date of Patent: January 7, 2025Assignee: Coretronic Projection (Kunshan) CorporationInventors: Yifei Sun, Ying Zhang, Qing Lu, Yebing Zhang
-
Patent number: 12183280Abstract: Embodiments of the disclosed subject matter provide a device that includes an organic light emitting device (OLED), and a drive circuit to control the operation of the OLED, comprising a response time accelerator thin film transistor (TFT) configured to short or reverse bias the OLED for a predetermined period of time during a frame time. Other embodiments include an OLED having a plurality of sub-pixels, where one or more of sub-pixels configured to emit light of at least a first color comprises a first emissive area and a second emissive area that are independently controllable, where the first emissive area is larger than the second emissive area. The controller is configured to control the second emissive area to have (i) a higher brightness, and/or (ii) a higher current density than the first emissive area for a first sub-pixel luminance level that is less than a maximum luminance.Type: GrantFiled: June 21, 2022Date of Patent: December 31, 2024Assignee: Universal Display CorporationInventors: Michael Hack, Michael Stuart Weaver, Nicholas J. Thompson, Michael O'Connor
-
Patent number: 12183254Abstract: A control method includes obtaining a brightness level parameter of a display screen, controlling a refresh rate of the display screen at a target refresh rate if the brightness level parameter is less than or equal to a target brightness level, and obtaining display data based on a target time interval corresponding to the target refresh rate. The display data obtained based on the target time interval includes at least two adjacent display data that are the same.Type: GrantFiled: March 14, 2023Date of Patent: December 31, 2024Assignee: LENOVO (BEIJING) LIMITEDInventors: Zhangqing Huang, Qiyang Wang
-
Patent number: 12183224Abstract: Provided is a display module. The display module includes: a base substrate, and a plurality of pixel circuits arranged in an array, a plurality of pixel electrodes arranged in an array, a liquid crystal layer, and a light source that are disposed on a side of the base substrate and successively arranged along a direction away from the base substrate; wherein the pixel circuit at least comprises a drive transistor, the drive transistor comprising a gate electrode, a first electrode, and a second electrode; and the pixel electrode at least comprises a reflective electrode.Type: GrantFiled: June 30, 2021Date of Patent: December 31, 2024Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Song Yang, Pengxia Liang, Ge Shi, Yujie Liu, Zheng Fang, Yanliu Sun, Jiahui Han, Qian Wu, Hongpeng Li
-
Patent number: 12178108Abstract: A display device including: a window; a polarizer disposed on the window and including an opening; a display panel disposed below the polarizer and including a first display area and a second display area that has a pixel density lower than that of the first display area, wherein the second display area overlaps the opening of the polarizer; and an optical controller overlapping the second display area and is disposed on the display panel, wherein the optical controller reduces a transmittance of an optical signal.Type: GrantFiled: May 13, 2021Date of Patent: December 24, 2024Assignee: Samsung Display Co., Ltd.Inventors: Chul Ho Jeong, Hyun-Been Hwang, Seokwon Jang, Yongchan Jeon, Hirotsugu Kishimoto
-
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: 12159586Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.Type: GrantFiled: September 6, 2023Date of Patent: December 3, 2024Assignee: LG Display Co., Ltd.Inventors: Won-Seok Song, Bonghwan Kim, Sunhwan Kim, Mirae Shin
-
Patent number: 12154471Abstract: The present disclosure, in an aspect, relates to a source driver to control a bias current, and more particularly, to a source driver, in which a bias current of a buffer is controlled depending on a distance between the source driver and a pixel in a data line and a position, regarding which a bias current is set, and the intensity of the bias current are changed in every frame so that unnecessary power consumption due to bias currents may be reduced and a block-dim phenomenon may be alleviated.Type: GrantFiled: August 7, 2020Date of Patent: November 26, 2024Assignee: LX SEMICON CO., LTD.Inventors: Jung Min Choi, Hyung Sub Kim
-
Patent number: 12154518Abstract: Provided is a display device including a display panel including a sub-pixel connected to a data line and a reference line, a driving circuit configured to supply a data voltage to the display panel through the data line, and a sensing circuit including a sampling circuit for sensing the display panel through the reference line, wherein the sampling circuit includes a sampling switch having a turn-on state within an image display period of the display panel to acquire a sensing voltage by sensing the reference line and determine presence or absence of a defect based on the sensing voltage.Type: GrantFiled: October 30, 2023Date of Patent: November 26, 2024Assignee: LG DISPLAY CO., LTD.Inventor: Cheol Su Lee
-
Patent number: 12154501Abstract: The present invention provides a display control method of a display panel, a display module, and a display device. Pulse widths of first pulses corresponding to non-display phases in one frame period in an emission start signal are at least partially different, so that pixel driving circuits adjust light-emitting durations of light-emitting devices corresponding to each display phase according to emission control signals. Accordingly, a display brightness of each light-emitting device can be adjusted within one frame period, and a flickering problem can be alleviated.Type: GrantFiled: May 26, 2022Date of Patent: November 26, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Tao Chen
-
Patent number: 12142209Abstract: A pixel includes a light emitting element, a driving switching element, an initialization voltage terminal, a data initialization switching element set, and an adjustment switching element. The driving switching element may provide a driving current to the light emitting element. The adjustment switching element is electrically connected to the data initialization switching element in series. At least one of the data initialization switching element set and the adjustment switching element may control an electrical connection between the control electrode of the driving switching element and the initialization voltage terminal. A control electrode of the adjustment switching element is electrically connected to an input electrode of the adjustment switching element.Type: GrantFiled: January 24, 2022Date of Patent: November 12, 2024Assignee: Samsung Display Co., Ltd.Inventors: Heerim Song, Mukyung Jeon, Heejean Park, Yujin Lee, Cheol-Gon Lee
-
Patent number: 12135912Abstract: A control device includes at least one processor. In a case in which a first user observes a captured image, which is picked up by a camera of a glasses-type display device, using the glasses-type display device and a second user observes the captured image using a display device different from the glasses-type display device, the processor is configured to perform a control to output a first image, which is obtained through an image pickup control on the basis of a first region of the captured image, to the glasses-type display device and to output a second image, which is obtained through an image pickup control on the basis of a second region of the captured image, to the display device.Type: GrantFiled: March 23, 2023Date of Patent: November 5, 2024Assignee: FUJIFILM CorporationInventor: Kosuke Takahashi
-
Patent number: 12130972Abstract: A system may include an electronic device such as a head-mounted device and a handheld input device for controlling the electronic device. A tracking device may be removably coupled to the handheld input device to increase the precision with which the head-mounted device tracks the handheld input device. The tracking device may have larger dimensions than the handheld input device and/or may have an expandable housing that expands and retracts. Visual markers on the tracking device may include infrared light-emitting diodes, geometric surface features, or other optical tracking features. The tracking device may serve as a secondary input device for the head-mounted device when the tracking device is decoupled from the input device. The tracking device may have a recess for receiving a shaft of the input device and may have magnets or other attachment structures for attaching the tracking device to the input device.Type: GrantFiled: July 14, 2023Date of Patent: October 29, 2024Assignee: Apple Inc.Inventor: Paul X Wang
-
Patent number: 12131678Abstract: A touch control circuit for use in a display device includes: a plurality of analog-to-digital converters and a controller. Each of the analog-to-digital converters is coupled to at least one of a plurality of touch sensing electrodes and at least one of a plurality of source drivers of the display device. At least one of the analog-to-digital converters is configured to generate a first measured digital code according to an output voltage outputted by at the least one of the source drivers. The controller is coupled to the analog-to-digital converters, and configured to compare the first measured digital code with an input digital code that the output voltage of the at the least one of the source drivers corresponds to, thereby to generate a first safety detection result regarding the at least one of the source drivers.Type: GrantFiled: December 29, 2023Date of Patent: October 29, 2024Assignee: HIMAX TECHNOLOGIES LIMITEDInventors: Yaw-Guang Chang, Chun-Yu Chiu, Ren-Yuan Huang, Chia-Yi Huang
-
Patent number: 12112694Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.Type: GrantFiled: September 28, 2023Date of Patent: October 8, 2024Assignee: Samsung Display Co., Ltd.Inventors: Minjae Jeong, Jangmi Kang, Hyeongseok Kim, Junhyun Park, Mukyung Jeon
-
Patent number: 12106712Abstract: A display device includes a display pixel circuit including a display light-emitting element, a reference light-emitting element, and a display driving circuit. The display pixel circuit is configured to control light emission of the display light-emitting element based on a data signal in accordance with video data. The reference light-emitting element is precluded from the control in accordance with video data. The display driving circuit is configured to acquire a reference signal indicating a current-voltage characteristic of the reference light-emitting element, acquire a characteristic signal indicating the current-voltage characteristic of the display light-emitting element, and generate a signal indicating a degree of deterioration of the display light-emitting element based on a difference of the characteristic signal from the reference signal.Type: GrantFiled: October 4, 2022Date of Patent: October 1, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Masamichi Shimoda, Genshiro Kawachi
-
Patent number: 12100356Abstract: This application provides a shift register, a gate drive circuit, a display panel, and an electronic device. The shift register includes a node control module, electrically connected to a first level signal receiving end, a second level signal receiving end, a first node, and a second node; an input module, electrically connected to a first clock signal end, a trigger signal input end, and the second node; an output module, electrically connected to the first level signal receiving end, the second level signal receiving end, the first node, a third node, and a drive signal output end; a first voltage stabilizing module, electrically connected to the first node, a fourth node, and the second level signal receiving end; and a second voltage stabilizing module, electrically connected to the second node, the third node, the fourth node, and a second clock signal end.Type: GrantFiled: January 4, 2023Date of Patent: September 24, 2024Assignee: HONOR DEVICE CO., LTD.Inventors: Linhong Han, Wanming Wu, Di Geng, Ling Li, Zheng Tian
-
Patent number: 12100370Abstract: A display apparatus includes: a display, a processor configured to process image data to be displayed on the display, a transformer including a primary coil and a plurality of secondary coils, a first rectifier connected with a first coil of the plurality of secondary coils and configured to output a first output voltage corresponding to a number of turns of the first coil, a direct current-direct current (DC-DC) converter configured to receive the first output voltage from the first rectifier and output a second output voltage that is different from the first output voltage, and a second rectifier connected with a second coil of the plurality of secondary coils and configured to output a first load voltage which is a sum of the second output voltage and a third output voltage corresponding to a number of turns of the second coil to the display.Type: GrantFiled: March 13, 2023Date of Patent: September 24, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jaeeun Kim, Keonwoo Kim, Moonyoung Kim, Jinhyung Lee, Jeongil Kang
-
Patent number: 12099671Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.Type: GrantFiled: June 13, 2023Date of Patent: September 24, 2024Assignee: Samsung Display Co., Ltd.Inventors: Do Ik Kim, Ga Young Kim, Sang Hyun Lim, Young Sik Kim, Sang Chul Lee, Hwan Hee Jeong