Thin Film Transistor Type (tft) Patents (Class 324/760.02)
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Patent number: 12253557Abstract: An electronic device is provided. The electronic device includes a plurality of signal lines and a testing circuit. The testing circuit includes a plurality of output channels electrically connected to some of the plurality of signal lines and a plurality of switches. The plurality of switches are connected to the plurality of signal lines via the plurality of output channels. The overall plurality of output channels of the testing circuit are less than the overall plurality of signal lines in quantity. There are at least two via holes overlapping one of the plurality of output channels.Type: GrantFiled: May 31, 2023Date of Patent: March 18, 2025Assignee: Innolux CorporationInventors: Ming-Jou Tai, Chia-Hao Tsai, Yi-Shiuan Cherng, Youcheng Lu
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Patent number: 12232407Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: GrantFiled: December 4, 2023Date of Patent: February 18, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Jae-Yong Lee
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Patent number: 12107020Abstract: Disclosed is a method for testing an array substrate, including: sequentially applying a curing drive signal to curing pad circuits according to an arrangement order of the curing pad circuits in a testing circuit board, the curing pad circuit is connected with at least two array substrates; and performing an array test on the array substrates in the curing pad circuit by the curing drive signal. The present application also discloses a device for testing an array substrate, and a computer readable storage medium.Type: GrantFiled: September 27, 2020Date of Patent: October 1, 2024Assignee: HKC CORPORATION LIMITEDInventor: Peixin Lin
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Patent number: 12067910Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.Type: GrantFiled: June 18, 2021Date of Patent: August 20, 2024Assignee: Samsung Display Co., Ltd.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Seung-Kyu Lee
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Patent number: 12062305Abstract: A test circuit includes a plurality of first switch units and a plurality of second switch units. The first switch units are provided in one-to-one correspondence with a plurality of signal lines. First terminals of the first switch units are connected to first ends of the plurality of signal lines, second terminals of the first switch units are short-circuited to one another, and control terminals of the first switch units are connected to a first control signal terminal. The plurality of second switch units are provided in one-to-one correspondence with the plurality of signal lines. First terminals of the plurality of second switch units are connected to second ends of the plurality of signal lines, second terminals of the plurality of second switch units are short-circuited to one another, and control terminals of the plurality of second switch units are connected to a second control signal terminal.Type: GrantFiled: January 5, 2021Date of Patent: August 13, 2024Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Guangyao Li, Dongfang Wang
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Patent number: 11985301Abstract: Disclosed is a test fixture. The test fixture includes a fixture body, a support portion and a first adjustment mechanism; the fixture body is provided with a recess configured for placement of a test camera assembly to be tested, and a depth of the recess is equal to or greater than a thickness of the test camera assembly; the support portion is connected to the fixture body and provided with a support plane parallel to a bottom surface of the recess and configured for placement of a display panel to be tested; and the first adjustment mechanism is arranged on the fixture body and configured to adjust a size of the recess to fasten the test camera assembly.Type: GrantFiled: October 26, 2021Date of Patent: May 14, 2024Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Chi Yu, Bo Shi, Rui Zhou, Weiyun Huang
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Patent number: 11864454Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: GrantFiled: May 11, 2022Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Jae-Yong Lee
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Patent number: 11854447Abstract: A display device includes a pixel array including touch blocks; a plurality of test pads in a bezel area outside the pixel array for performing a pixel test and a touch block test; a plurality of pixel test lines and a plurality of touch block test lines connected to the test pads within the pixel array; a switching unit between the test pads and the pixel test lines and the touch block test lines and applying a test signal to any one of the pixel test lines and the touch block test lines; a pixel test switching pad in the bezel area and providing a control signal for testing pixel operation in the pixel array to the switching unit; and a touch block test switching pad in the bezel area and providing a control signal for testing the touch blocks within the pixel array to the switching unit.Type: GrantFiled: February 3, 2023Date of Patent: December 26, 2023Assignee: LG DISPLAY CO., LTD.Inventor: Se-Yong Lee
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Patent number: 11847946Abstract: A display device includes a pixel array including touch blocks; a plurality of test pads in a bezel area outside the pixel array for performing a pixel test and a touch block test; a plurality of pixel test lines and a plurality of touch block test lines connected to the test pads within the pixel array; a switching unit between the test pads and the pixel test lines and the touch block test lines and applying a test signal to any one of the pixel test lines and the touch block test lines; a pixel test switching pad in the bezel area and providing a control signal for testing pixel operation in the pixel array to the switching unit; and a touch block test switching pad in the bezel area and providing a control signal for testing the touch blocks within the pixel array to the switching unit.Type: GrantFiled: February 6, 2023Date of Patent: December 19, 2023Assignee: LG DISPLAY CO., LTD.Inventor: Se-Yong Lee
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Patent number: 11790817Abstract: A display device in which a pixel defect is less likely to be perceived is provided. The display device includes a display portion where pixels are arranged in a matrix, and a sensor portion including a photoelectric conversion element. First, the display portion is divided into a first region and a second region. Next, first light is emitted from the pixel included in the first region, and the luminance of the first light is detected by the photoelectric conversion element. Moreover, second light is emitted from the pixel included in the second region, and the luminance of the second light is detected by the photoelectric conversion element. Then, the luminance of the first light is compared to the luminance of the second light, and on the basis of the comparison result, one of the first region and the second region is divided into a third region and a fourth region. By repeating these operations, a defective pixel is detected.Type: GrantFiled: July 28, 2020Date of Patent: October 17, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Takayuki Ikeda
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Patent number: 11703539Abstract: A manufacturing method of an electronic device and an electronic device are provided. The manufacturing method includes the following steps: providing a substrate; forming a plurality of signal lines and a testing circuit on the substrate, wherein the testing circuit includes a plurality of output channels electrically connected to at least a portion of the plurality of signal lines; performing a testing process; and optionally isolating the testing circuit from the at least a portion of the plurality of signal lines. The testing process includes: providing a signal; processing a plurality of testing signals by processing the signal via the testing circuit; and transmitting the plurality of testing signals to the at least a portion of the plurality of signal lines via the plurality of output channels. The plurality of output channels are less than the plurality of signal lines in quantity.Type: GrantFiled: November 9, 2020Date of Patent: July 18, 2023Assignee: Innolux CorporationInventors: Ming-Jou Tai, Chia-Hao Tsai, Yi-Shiuan Cherng, Youcheng Lu
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Patent number: 11670203Abstract: An inspection circuit is properly protected in a display device, in which a driver IC is not on a terminal area. A liquid crystal display device includes a TFT substrate including a display area, in which video signal lines are formed, and a terminal area. A counter substrate overlaps with the display area of the TFT substrate. The counter substrate and the TFT substrate are adhered by a seal material, and the display area is formed in an area surrounded by the seal material. The flexible wiring circuit substrate connects to the terminal area. The driver IC, which supplies video signals to the video signal lines, is not installed in the terminal area. An inspection circuit is formed between the display area and the terminal area, and the inspection circuit overlaps with the counter substrate in a plan view.Type: GrantFiled: March 2, 2021Date of Patent: June 6, 2023Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Kentaro Agata
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Patent number: 11600210Abstract: A display device includes a pixel array including touch blocks; a plurality of test pads in a bezel area outside the pixel array for performing a pixel test and a touch block test; a plurality of pixel test lines and a plurality of touch block test lines connected to the test pads within the pixel array; a switching unit between the test pads and the pixel test lines and the touch block test lines and applying a test signal to any one of the pixel test lines and the touch block test lines; a pixel test switching pad in the bezel area and providing a control signal for testing pixel operation in the pixel array to the switching unit; and a touch block test switching pad in the bezel area and providing a control signal for testing the touch blocks within the pixel array to the switching unit.Type: GrantFiled: June 30, 2022Date of Patent: March 7, 2023Assignee: LG Display Co., Ltd.Inventor: Se-Yong Lee
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Patent number: 11495180Abstract: A display device includes a pixel circuit on a substrate, a data line configured to transmit a data signal for the pixel circuit on the substrate, and a monitoring circuit. The pixel circuit includes a driving transistor configured to control an amount of electric current supplied to a light-emitting element, and a first switching transistor disposed between the light-emitting element and the driving transistor. The first switching transistor switches between supplying and not supplying the light-emitting element with electric current from the driving transistor. The monitoring circuit monitors a signal at a monitoring point located between the driving transistor and the first switching transistor in the pixel circuit.Type: GrantFiled: March 4, 2021Date of Patent: November 8, 2022Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., TIANMA JAPAN, LTD.Inventors: Genshiro Kawachi, Masamichi Shimoda, Yoshihiro Nonaka, Jiro Yanase
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Patent number: 11362986Abstract: Systems and methods are for domain name system (DNS) resolutions in heterogeneous network environments including a virtual private cloud (VPC). An administrator of a virtual private cloud (VPC) specifies rules identifying sources for resolving DNS resolution requests. The rules may include routing a request to a source outside the VPC such as to an on-premises DNS resolver through an outbound IP endpoint.Type: GrantFiled: December 7, 2020Date of Patent: June 14, 2022Assignee: Amazon Technologies, Inc.Inventors: Kiran Thunga, Jeffrey J. Damick, Yohanes Santoso, Bing Xia, Glen Li, Parham Ghazanfari, Daniel Bradley, Brandon Mark Wagner, Yu Wang, Huida Tao, Mekias Mebrahtu Yohannes, Jordan Harris Singer, Kevin Tyler, Gavin Derek McCullagh
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Patent number: 11360360Abstract: The present invention provides a display panel including a substrate, first pads, second pads, third pads, an integrated circuit chip, and a flexible printed circuit board. The substrate includes a display region and a non-display region. The first pads are disposed in the non-display region and include display signal pads used for transmitting display signals. The second pads are disposed in the non-display region, at least a portion of the second pads are disposed along a first direction, and the second pads are disposed closer to an edge of the substrate than the first pads. The third pads are disposed in the non-display region and along the first direction, and the third pads are electrically connected to the corresponding second pads. The integrated circuit chip covers and is electrically connected to the first pads and the second pads. The flexible printed circuit board is electrically connected to the third pads.Type: GrantFiled: June 14, 2020Date of Patent: June 14, 2022Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Cheng-Yen Yeh, I-Hsuan Chen, Guang-Shiung Chao, Mu-Kai Kang
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Patent number: 11340505Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.Type: GrantFiled: October 5, 2020Date of Patent: May 24, 2022Assignee: Japan Display Inc.Inventors: Gen Koide, Hiroyuki Abe, Kazune Matsumura
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Patent number: 11199573Abstract: A display panel includes: a pixel region comprising a plurality of pixels; an open/short test region comprising a plurality of open/short test pads; a dummy stage configured to generate a carry signal in response to a scan start signal; and a plurality of stages configured to sequentially provide a plurality of scan signals to the plurality of pixels in response to the carry signal, wherein the plurality of stages is spaced apart by a first distance from the pixel region, and the dummy stage is spaced apart by a second distance greater than the first distance from the open/short test region.Type: GrantFiled: April 17, 2020Date of Patent: December 14, 2021Assignee: Samsung Display Co., Ltd.Inventors: Jun Hyun Park, Dong Woo Kim, An Su Lee, Kang Moon Jo
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Patent number: 11195897Abstract: An organic light-emitting diode (OLED) array substrate and an OLED display device are provided. The OLED array substrate includes a plurality of driving circuits of a plurality of sub-pixels using a mirror symmetrical structure, and a plurality of reset signal lines and a plurality of power signal lines extending along a same direction. By sharing each of the reset signal lines and each of a plurality of first vias, and sharing each of the power signal lines and each of a plurality of second vias, about half of lines of power signal lines, reset signal lines, and vias are saved. Therefore, room for increasing pixels per inch (PPI) is provided, facilitating realizing high PPI panel designs.Type: GrantFiled: April 16, 2019Date of Patent: December 7, 2021Inventors: Wei Wang, Qing Huang
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Patent number: 11081075Abstract: The present inventive concept is related to a display device in which a compensated voltage is applied to a gate line by compensating for a voltage drop of a voltage applied to the gate line.Type: GrantFiled: March 14, 2019Date of Patent: August 3, 2021Inventors: Hyunwook Lee, Pilgyu Kang, Minchan Lee, Sungjin Lee, Chanyoung Lim, Solip Jeong
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Patent number: 11035890Abstract: [Problem] To provide an abnormality detection data recording device capable of detecting an abnormality and leaving its history. [Solution] An abnormality detection data recording device includes a first semiconductor integrated circuit device and a second semiconductor integrated circuit device. The first semiconductor integrated circuit device includes an abnormality detection part configured to detect an abnormality of an electronic device in which the abnormality detection data recording device is installed, and a transmission part configured to transmit abnormality detection data indicative of the abnormality detected by the abnormality detection part. The second semiconductor integrated circuit device includes a reception part configured to receive the abnormality detection data by wired communication with the transmission part, and a storage part configured to nonvolatilely store the abnormality detection data received by the reception part.Type: GrantFiled: October 25, 2018Date of Patent: June 15, 2021Assignee: Rohm Co., Ltd.Inventors: Masahiro Osa, Isao Takobe
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Patent number: 11037841Abstract: Embodiments relate to functional test methods useful for fabricating products containing Light Emitting Diode (LED) structures. In particular, LED arrays are functionally tested by injecting current via a displacement current coupling device using a field plate comprising of an electrode and insulator placed in close proximity to the LED array. A controlled voltage waveform is then applied to the field plate electrode to excite the LED devices in parallel for high-throughput. A camera records the individual light emission resulting from the electrical excitation to yield a function test of a plurality of LED devices. Changing the voltage conditions can excite the LEDs at differing current density levels to functionally measure external quantum efficiency and other important device functional parameters.Type: GrantFiled: February 11, 2020Date of Patent: June 15, 2021Assignee: Apple Inc.Inventor: Francois J. Henley
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Patent number: 10990731Abstract: This disclosure describes methods, systems and media for analyzing voltage drops in a power delivery network in a simulated design of an electrical circuit. In one embodiment, a system determines, for a victim element (“victim”), a voltage drop caused by each aggressor element (“aggressor”) in a set of aggressors in the design and creates a data structure that includes, for each victim, at least one of: (1) each voltage drop caused by each aggressor in the set of aggressors or (2) a sum of the voltage drops on the victim caused by all of the aggressors in the set of aggressors. The system can then compute a set of simulations based on random inputs to generate a distribution of possible voltage drops for each victim using data in the data structure.Type: GrantFiled: December 20, 2019Date of Patent: April 27, 2021Assignee: ANSYS, INC.Inventors: Altan Odabasi, Emrah Acar, Sudarsana Reddy Mallu, Tinu Thomas, Mirza Milan, Scott Johnson, Joao Geada
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Patent number: 10977973Abstract: A display device and a detection method applied to the display device are provided. The display device includes a display panel, a source control circuit, and a leakage estimation circuit. The display panel includes pixels being arranged in M columns, wherein at least one panel-partition is defined on the display panel. The source control circuit includes M source drivers which respectively provide data voltages to the M columns of pixels. The leakage estimation circuit includes an evaluation circuit, a defect detection circuit, and a mode-switch. The evaluation circuit controls the defect detection circuit to perform a leakage estimation procedure so that a leakage current corresponding to the panel-partition is estimated when the at least one mode-switch is turned on.Type: GrantFiled: September 25, 2019Date of Patent: April 13, 2021Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Patent number: 10971076Abstract: A display device includes a pixel circuit on a substrate, a data line on the substrate, the data line being configured to transmit a data signal for the pixel circuit, a monitoring line on the substrate, the monitoring line being different from the data line, and a monitoring circuit. The monitoring circuit is configured to monitor a signal at a monitoring point on a path of the data signal with the monitoring line, and supply a correction signal in place of the data signal to the pixel circuit via the monitoring line and the monitoring point in response to detection of transmission failure of the data signal.Type: GrantFiled: April 17, 2020Date of Patent: April 6, 2021Assignees: TIANMA JAPAN, LTD., Wuhan Tianma Micro-Electronics Co., Ltd.Inventors: Genshiro Kawachi, Masamichi Shimoda, Yoshihiro Nonaka, Jiro Yanase
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Patent number: 10964244Abstract: [Object] An object is to suppress an occurrence of display unevenness in a pause-and-drive operation. [Solution] A display device configured to perform pause-and-drive operation includes an nth stage circuit connected to one end of an nth gate bus line, and an nth transistor connected to the other end of the nth gate bus line. One of a first clock signal group (AGCK1 to AGCK6) is input to the nth stage circuit. One of a second clock signal group (BGCK1 to BGCK6) is input to the nth transistor. In a pause period in which all clock signals of the first clock signal group are fixed at an inactive level, one or more pulses (P3 to P6) are included in the second signal group.Type: GrantFiled: August 27, 2019Date of Patent: March 30, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Akira Tagawa, Yasuaki Iwase, Jun Nishimura, Takuya Watanabe, Yohei Takeuchi
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Patent number: 10948749Abstract: A display panel and a display test apparatus and a method of testing the display panel are provided. The display panel includes an array substrate; a test device disposed on the array substrate and configured to receive a test signal from a display test apparatus to test a plurality of pixel units of the display panel; and a connection device disposed on the array substrate and configured to be electrically connectable to the display test apparatus electrically, the test device receives a discharge signal from the display test apparatus to discharge the plurality of pixel units in response to a switch of a connection state between the connection device and the display test apparatus from electrical connection to electrical disconnection.Type: GrantFiled: August 28, 2018Date of Patent: March 16, 2021Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Shicheng Sun, Jianfei Tian, Zhiqiang Wang, Shuang Hu, Peirong Huo
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Patent number: 10818208Abstract: A source driver includes a first output pad, a second output pad, a first charge-sharing path, a second charge-sharing path, a first charge-sharing switch, a second charge-sharing switch and a test circuit. A first terminal and a second terminal of the first charge-sharing switch are respectively coupled to the first output pad and the first charge-sharing path. A first terminal and a second terminal of the second charge-sharing switch are respectively coupled to the second output pad and the second charge-sharing path. The test circuit is coupled to the first charge-sharing path and the second charge-sharing path. The test circuit performs a test for the first output pad and the second output pad via the first charge-sharing path, the second charge-sharing path, the first charge-sharing switch and the second charge-sharing switch in a test period.Type: GrantFiled: September 14, 2018Date of Patent: October 27, 2020Assignee: Novatek Microelectronics Corp.Inventor: Yu-Jen Yen
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Patent number: 10733923Abstract: The present application discloses a detection method for a display panel and a detection apparatus for a display panel. The detection method includes the following steps: storing a picture for detection in a source driver circuit board of a display panel; electrically connecting a power source board generating a power source signal directly to the source driver circuit board.Type: GrantFiled: May 10, 2017Date of Patent: August 4, 2020Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Wei Chen
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Patent number: 10713985Abstract: A method of inspecting light emitting elements includes disposing a first electrode and a second electrode on a substrate. A solution including a plurality of light emitting elements is applied on the first electrode and the second electrode. A first voltage is applied across the first electrode and the second electrode so as to cause the plurality of light emitting elements to emit light. The light emitted from the plurality of light emitting elements is photographed and first image data is generated therefrom. A density of the plurality of light emitting elements is determined using the first image data.Type: GrantFiled: July 25, 2018Date of Patent: July 14, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Sungbae Ju
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Patent number: 10643564Abstract: A liquid crystal display includes scanning lines and signal lines arranged in a matrix pattern on a TFT substrate, a pixel being formed at a crossing portion of each scanning line and each signal line, and including a TFT that is connected to each scanning line and each signal line, first nonlinear resistance elements formed respectively in the scanning lines, each of which being connected to one scanning line at one end thereof and to a short ring power-supply line for a scanning line at another end thereof, and second nonlinear resistance elements formed respectively in the signal lines, each of which being connected to one signal line at one end thereof and to a short ring power-supply line for a signal line at another end thereof. A voltage is applied to the first and second nonlinear resistance elements independently of each scanning line and each signal line.Type: GrantFiled: August 30, 2019Date of Patent: May 5, 2020Assignee: Mitsubishi Electric CorporationInventors: Shinji Kawabuchi, Manabu Tanahara
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Patent number: 10634717Abstract: A testing apparatus for testing an integrated circuit package having a plurality of electrical terminals includes a base, a socket, a plurality of conductive pins and a plurality of conductive pillars. The base includes a plurality of electrical contacts. The socket is disposed on the base and includes a bended portion bended away from the base and a plurality of through holes distributed in the socket. The conductive pins are disposed in the through holes respectively and electrically connected to the electrical contacts, wherein each of the conductive pins protrudes from an upper surface of the socket for forming temporary electrical connections with one of the electrical terminals. The conductive pillars are disposed on the base and connected to the bended portion, wherein each of the conductive pillars electrically connects one of the conductive pins and one of the electrical contacts.Type: GrantFiled: January 31, 2018Date of Patent: April 28, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Tang-Jung Chiu, Hung-Chih Lin, Mill-Jer Wang
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Patent number: 10613155Abstract: A short circuit testing method for a capacitive sensing device including a plurality of sense lines and a plurality of drive lines includes: under a short circuit testing mode, coupling at least one first line in the sense lines and drive lines to a reference level; using a sensing circuit corresponding to a specific sense line to read out a testing resultant signal; and, comparing the testing resultant signal with a reference signal to determine whether a short circuit exists.Type: GrantFiled: October 31, 2017Date of Patent: April 7, 2020Assignee: PixArt Imaging Inc.Inventors: Sung-Han Wu, Wooi Kip Lim, Kei Tee Tiew, Keen-Hun Leong
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Patent number: 10553154Abstract: A method and an apparatus for detecting a driving circuit. The method includes: inputting a data signal, a gate line scanning signal, a voltage signal, and a first control signal with a first voltage level into a data input end, a gate scanning input end, a power source end and a voltage sensing end of the driving circuit, respectively; by inputting a second control signal with a second voltage level into a sensing-scanning input end, controlling a pixel storage capacitor to be charged, and measuring a first voltage of an OLED anode end; by inputting the second control signal with a third voltage level to the sensing-scanning input end, controlling the pixel storage capacitor to be discharged, and measuring a second voltage of the OLED anode end; and determining whether the driving circuit has abnormity or not according to the first voltage and the second voltage.Type: GrantFiled: June 30, 2017Date of Patent: February 4, 2020Assignee: BOE Technology Group Co., Ltd.Inventors: Yongqian Li, Pan Xu, Zhidong Yuan
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Patent number: 10546781Abstract: Disclosed is a display device that includes an array substrate that includes a display region and a first non-display region, and includes a signal line connected to a pixel in the display region; a first signal transfer line that is at the first non-display region and transfers a test signal, and a second signal transfer line that transfers a test enable signal; a connection pattern connected to the first signal transfer line; a test transistor that is connected between the signal line and the connection pattern, and is connected to the second signal transfer line; and an electrostatic induction element that includes a dummy device in the form of either a dummy pattern and/or a dummy test transistor, the dummy pattern including a dummy connection pattern connected to the first signal transfer line, the dummy test transistor connected to the second signal transfer line.Type: GrantFiled: August 23, 2017Date of Patent: January 28, 2020Assignee: LG Display Co., Ltd.Inventors: Sun-Hyun Choi, Ki-Taeg Shin, Tae-Yun Roh
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Patent number: 10541256Abstract: An embodiment of the present disclosure relates to an array substrate, which comprises data lines and gate lines arranged on the array substrate having a pixel region and a peripheral region surrounding the pixel region, and at least two repair lines arranged on the peripheral region of the array substrate. The at least two repair lines intersect with one of the data lines and the gate lines. Each of the repair lines has at least one repair voltage lead. The array substrate according to the present disclosure can increase the number of data lines or gate lines that can be repaired, improve a utilization ratio of the repair lines, and can be used for repairing a display panel with large area.Type: GrantFiled: July 14, 2017Date of Patent: January 21, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jianbo Xian, Xueguang Hao, Hongfei Cheng, Yongda Ma
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Patent number: 10535285Abstract: A gate driver on array (GOA) display panel and a GOA display apparatus are disclosed. The display panel has a scan driving circuit, a data driving circuit, a thin-film transistor array, a plurality of scanning lines, a plurality of data lines, and a sub-pixel array. Starting from the first row of the sub-pixels, two of the scanning lines that are connected to two adjacent odd-numbered rows of the sub-pixels are both connected to a first clock signal control terminal; two of the scanning lines that are connected to two adjacent even-numbered rows of the sub-pixels are both connected to a second clock signal control terminal.Type: GrantFiled: August 29, 2017Date of Patent: January 14, 2020Assignee: Shenzhen China Star Opto Semicon Display Tech Co.Inventor: Mian Zeng
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Patent number: 10510277Abstract: An organic light emitting display device including pixels positioned in regions defined by scan lines and light emission control lines extending in a first direction, and data lines extending in a second direction different from the first direction, the pixels being configured to control an amount of current flowing from a first power source to a second power source by way of organic light emitting diodes (OLEDs) in response to data signals, organic light emitting display device includes a scan driver configured to sequentially supply scan signals to the scan lines and light emission control signals to the light emission control lines during an inspection period, and a data driver configured to supply inspection data signals to the data lines in synchronization with the scan signals during the inspection period.Type: GrantFiled: May 19, 2016Date of Patent: December 17, 2019Assignee: Samsung Display Co., Ltd.Inventor: In Soo Wang
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Patent number: 10502996Abstract: A display motherboard and a method of cutting the same are provided, which relate to a display technology to form a display panel of narrow bezel.Type: GrantFiled: August 21, 2017Date of Patent: December 10, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Zhuo Wang, Haoyuan Fan, Wulin Shen
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Patent number: 10469442Abstract: Systems and methods are described to enable adaptive handling of domain resolution requests originating from a virtual private cloud (VPC) networking environment. An administrator of the VPC can provide a set of rules specific to the VPC that designates how requests for a domain name should be handled. The rules may specify, for example, that a request for a given domain name should be routed to a particular domain name server, which may include a private domain name server, should be dropped, or should be routed according to a default behavior (e.g., a public domain name system). Resolution requests originating in the VPC can be associated with a VPC identifier. When an adaptive resolution system receives the request, it can retrieve rules associated with the VPC identifier, and apply the rules to determine further routing for the request.Type: GrantFiled: July 23, 2018Date of Patent: November 5, 2019Assignee: Amazon Technologies, Inc.Inventors: Andrey Mizik, Lee-Ming Zen, Gavin Derek McCullagh, Yohanes Santoso, Vadim Meleshuk, Yu Gu, Minli Lai, Ivan Mistrianu, Rebecca Claire Weiss, Yi Cheng Chen, Ronald Andrew Hoskinson
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Patent number: 10446069Abstract: A display device includes a display panel, a first inspection line, a second inspection line, and an inspection circuit controlling a connection between the first inspection line and a first pixel group and a connection between the second inspection line and the second pixel group. The inspection circuit includes a switching part including a first switching part that controls the connection between the first inspection line and the first pixel group and a second switching part that controls the connection between the second inspection line and the second pixel group and a dummy circuit including a dummy transistor that is electrically connected to the switching part and including a first dummy electrode, a second dummy electrode that is connected to the first dummy electrode, and a dummy control electrode.Type: GrantFiled: December 20, 2018Date of Patent: October 15, 2019Assignee: Samsung Display Co., Ltd.Inventors: Hyunwoong Kim, Seung-kyu Lee, Kwang-min Kim, Jongwon Park
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Patent number: 10402427Abstract: Disclosed are a system and a method for analyzing a result of clustering massive data. An open-source map/reduce framework named Hadoop is used to calculate a silhouette coefficient corresponding to a significance verification index capable of evaluating a result of clustering massive data. To implement the system and the method for analyzing a result of clustering massive data, clustered data is divided into blocks. For all of the blocks, input splits are generated. Then, the generated input splits are assigned to multiple computers. Each computer stores only data of blocks included in an input split assigned in a memory, and calculates a silhouette coefficient for each record. Each computer provides only the calculated silhouette coefficient to an index coefficient calculation apparatus, and enables the index coefficient calculation apparatus to calculate a silhouette coefficient for a cluster. Therefore, the result of clustering the massive data can be rapidly and objectively analyzed.Type: GrantFiled: October 31, 2012Date of Patent: September 3, 2019Assignee: SK PLANET CO., LTD.Inventors: Chae Hyun Lee, Min Soeng Kim, Jun Sup Lee
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Patent number: 10403196Abstract: Disclosed is a source driver including a sensing circuit capable of sensing whether a short occurred between a data output line and a power line. The source driver may include: an output circuit configured to output a preset voltage to a display panel in a checking mode; and a sensing circuit configured to sense whether data output lines connecting the output circuit and the display panel are shorted, using the preset voltage, and output a sensing result signal.Type: GrantFiled: June 14, 2016Date of Patent: September 3, 2019Assignee: SILICON WORKS CO., LTD.Inventors: Ju Young Shin, Jung Bae Yun, Yong Jung Kwon, Jeung Hie Choi
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Patent number: 10366643Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.Type: GrantFiled: August 11, 2015Date of Patent: July 30, 2019Assignee: Samsung Display Co., Ltd.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Seung-Kyu Lee
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Patent number: 10311765Abstract: An electrostatic discharge (ESD) and testing composite component, an array substrate and a display device are provided. The composite component includes a first signal line, a first thin-film transistor (TFT) and a second TFT which are electrically connected with the first signal line, a second signal line electrically connected with the first TFT, and a third signal line and a fourth signal line which are electrically connected with the second TFT; and the composite component is configured to provide a testing signal for the first signal line at a first stage and configured to provide ESD for the first signal line at a second stage, and the first stage is a testing stage and the second stage is an ESD stage. The composite component occupies small area and acquire a narrow-bezel and/or high-resolution display panel.Type: GrantFiled: November 15, 2016Date of Patent: June 4, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueguang Hao, Yong Qiao, Xinyin Wu
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Patent number: 10304364Abstract: What is disclosed are structures and methods for testing and repairing emissive display systems. Systems are tested with use of temporary electrodes which allow operation of the system during testing and are removed afterward. Systems are repaired after identification of defective devices with use of redundant switching from defective devices to functional devices provided on repair contact pads.Type: GrantFiled: January 22, 2016Date of Patent: May 28, 2019Assignee: VueReal Inc.Inventor: Gholamreza Chaji
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Patent number: 10256212Abstract: The present disclosure provides a semiconductor chip. The semiconductor chip includes a switching element having a gate electrode, a first pad, and a second pad. The first control pad is electrically connected to the gate electrode and applied with a voltage controlling the switching element to switch on or switch off. The second control pad provides a current path of a control current flowing between the first control pad and the second control pad when the switching element is in a switch-on state. One of the first control pad or the second control pad includes two pad components and a remaining one of the first control pad or the second control pad is disposed between the two pad components of the one of the first control pad or the second control pad.Type: GrantFiled: May 27, 2016Date of Patent: April 9, 2019Assignee: DENSO CORPORATIONInventors: Kenji Kouno, Hiromitsu Tanabe
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Patent number: 10109688Abstract: The present invention provides a repair structure of a line defect of an AMOLED display panel and a repair method. The conductive film (410) correspondingly overlaps and covers above the test TFT (310) and is insulated from the test TFT (310), and the repair line (420) is insulated and crossed with all the signal fanout lines (200) and the corresponding test line (330). It is realized that the repair line is directly grafted on the AMOLED display panel detecting circuit, which can utilize the present detecting circuit layout of the AMOLED display panel capable of introducing the repair line for having the repair function and saving the layout space, and has no additional requirement to the control IC, and particularly, can be applicable for the line defect repair of the small size, high resolution AMOLED display panel.Type: GrantFiled: April 25, 2016Date of Patent: October 23, 2018Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Baixiang Han
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Patent number: 10043426Abstract: A liquid crystal panel, a TFT substrate, and a detection method for TFT substrates are disclosed. The TFT substrate includes a plurality of pixel cells. The secondary pixel area of the first pixel cell in the (2n+1)-th row electrically connects to the capacitor of the second pixel cell in the (2n+2)-th row, and the secondary pixel area of the first pixel cell in the (2n+2)-th row electrically connects to the capacitor of the first pixel cell in the (2n+1)-th row. Different voltage signals are respectively provided to the first pixel cell and the second pixel cell. In this way, the short-circuit between the capacitor and the secondary pixel area within the same pixel cell may be detected, and thus may be repaired in time so as to enhance the product reliability.Type: GrantFiled: August 12, 2015Date of Patent: August 7, 2018Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Huan Liu
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Patent number: 10033691Abstract: Systems and methods are described to enable adaptive handling of domain resolution requests originating from a virtual private cloud (VPC) networking environment. An administrator of the VPC can provide a set of rules specific to the VPC that designates how requests for a domain name should be handled. The rules may specify, for example, that a request for a given domain name should be routed to a particular domain name server, which may include a private domain name server, should be dropped, or should be routed according to a default behavior (e.g., a public domain name system). Resolution requests originating in the VPC can be associated with a VPC identifier. When an adaptive resolution system receives the request, it can retrieve rules associated with the VPC identifier, and apply the rules to determine further routing for the request.Type: GrantFiled: August 24, 2016Date of Patent: July 24, 2018Assignee: Amazon Technologies, Inc.Inventors: Andrey Mizik, Lee-Ming Zen, Gavin Derek McCullagh, Yohanes Santoso, Vadim Meleshuk, Yu Gu, Minli Lai, Ivan Mistrianu, Rebecca Claire Weiss, Yi Cheng Chen, Ronald Andrew Hoskinson