Patents Assigned to TIANMA MICRO-ELECTRONICS CO., LTD
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Patent number: 12163914Abstract: A detection device and a detection method are provided. The detection device includes at least one detection unit. The detection unit includes a first transistor, a second transistor, a third transistor and a fourth transistor that are electrically connected to each other, a gate is disposed above a channel of each of the first transistor, the second transistor, and the third transistor, and an ion-sensitive membrane is covered above a channel of the fourth transistor. The detection device also includes a first voltage signal terminal, a second voltage signal terminal, and a third voltage signal terminal. Further, the detection device includes a first power supply terminal, a first potential output terminal, a second potential output terminal, and a second power supply terminal.Type: GrantFiled: February 28, 2022Date of Patent: December 10, 2024Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Kaidi Zhang, Baiquan Lin, Huihui Jiang, Luning Yang, Wei Li, Yunfei Bai, Zhenyu Jia, Kerui Xi, Feng Qin
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Patent number: 12167627Abstract: A display panel and a display device are provided. The display panel includes a substrate, sub-pixels, a color conversion layer, and a color filter layer. At least one sub-pixel each includes a light-emitting element. The at least one light-emitting element of the at least one sub-pixels includes at least one blue light light-emitting element. The color conversion layer is configured to convert a color of light emitted by the light-emitting element. The color conversion layer includes red and green conversion layers. The red conversion layer is configured to convert blue light into red light, and the green conversion layer is configured to convert blue light into green light. The color filter layer includes red and green color resists. In a direction perpendicular to a plane of the substrate, the red color resist overlaps the red conversion layer, and the green color resist overlaps the green conversion layer.Type: GrantFiled: April 24, 2023Date of Patent: December 10, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Sitao Huo
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Publication number: 20240402811Abstract: A tactile presentation device includes a panel including a region touchable by a user, vibrators disposed outside the touchable region, and a driving controller to supply driving signals to the vibrators. At least a part of the entire outer end of the panel is an absorber end region. Each point closest to one of the vibrators on the entire outer end of the panel is included in the absorber end region. The driving controller supplies driving signals to the vibrators to generate a standing wave on the touchable region. Each of the driving signals is a synthetic wave of a carrier and a modulating wave at a frequency lower than a frequency of the carrier. The driving controller is configured to control location of a node of the standing wave in the touchable region with phase differences among carriers of the driving signals for the vibrators.Type: ApplicationFiled: May 28, 2024Publication date: December 5, 2024Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Shin TAKEUCHI, Hiroshi Haga
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Publication number: 20240402531Abstract: A liquid crystal display device includes a juxtaposed plurality of liquid crystal display panels, and a back light that emits light on the plurality of liquid crystal display panels. Each of the plurality of liquid crystal display panels includes, on a side surface opposing a side surface of the liquid crystal display panel adjacent thereto, a light shielding film that blocks the light from the back light.Type: ApplicationFiled: June 3, 2024Publication date: December 5, 2024Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.Inventor: Tetsuroh ASAKURA
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Publication number: 20240404484Abstract: A display panel and a display apparatus, in the display panel, a pixel unit includes a plurality of sub-pixels, the sub-pixels in a same pixel unit are electrically connected to a same scan line and are each electrically connected to different data lines/the display panel further includes demultiplexers, each demultiplexer includes two output terminals connected to different data lines, and is configured to transmit data signals to different data lines. The plurality of sub-pixels of the same pixel unit include at least three sub-pixels with different colors. Accordingly, the pixel units need not to borrow sub-pixels from each other while achieving full-color display of the display panel, which is conducive to improving the stability of display quality, using 1:2 demultiplexers to transmit data signals to sub-pixels ensures that each sub-pixel has sufficient charging time, thereby being conducive to ensuring the display quality of the display panel.Type: ApplicationFiled: August 15, 2024Publication date: December 5, 2024Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Ye YAN, Xiaodong YANG, Dandan CHU, Jiandong WANG, Xiongping LI
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Patent number: 12158642Abstract: A display panel includes a plurality of pixel units. At least one pixel unit includes a display region and an anti-peep region. The anti-peep region includes a first light-blocking layer and a second light-blocking layer. The first light-blocking layer is on a side of the second light-blocking layer facing a light-exiting surface of the display panel. Along a direction perpendicular to the light-exiting surface of the display panel, a distance between the first light-blocking layer and the second light-blocking layer is greater than zero. Along a fifth direction, the first light-blocking layer includes a plurality of first light-blocking strips and a plurality of first openings. A first opening is arranged between two neighboring first light-blocking strips. The fifth direction is parallel to the light-exiting surface of the display panel. Along the fifth direction, the second light-blocking layer includes a plurality of second light-blocking strips and a plurality of second openings.Type: GrantFiled: August 2, 2023Date of Patent: December 3, 2024Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Wenqi Zhou, Yan Yang, Ting Zhou, Junyi Li
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Patent number: 12160051Abstract: A liquid crystal antenna is described. The liquid crystal antenna includes liquid crystal phase shifter units arranged in an array; a first feeding network line corresponding to an ith scanning line and extending along a first direction, and/or, a second feeding network line corresponding to an jth data line and extending along a second direction. The first feeding network line is provided between the ith scanning line and an (i+1)th scanning line, and a scanning line protrusion protrudes toward a side facing away from the first feeding network line corresponding to the ith scanning line. The second feeding network line is provided between the jth data line and a (j+1)th data line, and a data line protrusion protrudes toward a side facing away from the second feeding network line corresponding to the jth data line.Type: GrantFiled: October 30, 2020Date of Patent: December 3, 2024Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Zhenyu Jia, Kerui Xi, Baiquan Lin, Xuhui Peng
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Publication number: 20240397759Abstract: Provided are a display panel and display device. The display panel includes an optical component area, where the optical component area includes a substrate, an insulating layer and a first electrode. The insulating layer includes a first insulating layer and a second insulating layer, the second insulating layer is located on a side of the first insulating layer facing away from the substrate, and the first insulating layer includes a first insulating sub-layer in contact with the second insulating layer. The first electrode is located on a side of the second insulating layer facing away from the substrate, and the first insulating sub-layer is provided with at least one first insulating opening. In the thickness direction of the display panel, the second insulating layer covers the at least one first insulating opening, and the first electrode and the at least one first insulating opening at least partially overlap.Type: ApplicationFiled: April 21, 2022Publication date: November 28, 2024Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Lei WANG, Hao DAI, Meihong WANG, Yangzhao MA
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Patent number: 12154507Abstract: A display panel, a display driving method and a display pixel driving circuit therefor are provided. In the display driving method, the light emitting signal includes multiple pulse signals, and the variation trend of the pulse-off durations of the pulse signals is consistent with the variation trend of the light emitting brightness of the light emitting element during the light emitting period, that is, the pulse-off durations decreases sequentially with the decrease of the light emitting brightness of the light emitting element, or sequentially increases with the increase of the light emitting brightness of the light emitting element. Therefore, the flicker problem in the display panel when emitting light can be solved, and improving the image display quality.Type: GrantFiled: July 27, 2023Date of Patent: November 26, 2024Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventor: Jieliang Li
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Patent number: 12154491Abstract: A pixel circuit, a display panel and a display device. The pixel circuit includes drive transistor, storage capacitor, compensation circuit, and voltage controller. The drive transistor has a gate electrode connected to a first node and generates a drive current in a light-emitting phase of an operation cycle of the pixel circuit. The storage capacitor has a first plate connected to the first node and a second plate connected to a second node and stores a data voltage inputted to the gate electrode of the drive transistor. The compensation circuit has an output terminal connected to the second node and a first input terminal receiving a first power supply voltage and compensates a deviation of the first power supply voltage affecting the drive current. The voltage controller is connected to the second node and controls a fluctuation of a voltage of the second node prior to the light-emitting phase.Type: GrantFiled: August 2, 2023Date of Patent: November 26, 2024Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Yingteng Zhai, Xiaoxiang He
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Patent number: 12147104Abstract: A display device includes a driver circuit on a display panel, a conductive frame that is disposed behind the display panel and supplies a frame ground, a control printed board disposed behind the conductive frame, and a conductive shield cover covering at least a part of the back face of the control printed board. The control printed board includes a front ground pad and a backside ground pad. The front ground pad is electrically connected to the back face of the conductive frame. The backside ground pad is electrically connected to the conductive shield cover. A part of an end of the conductive shield cover is electrically connected to the partial region.Type: GrantFiled: April 17, 2024Date of Patent: November 19, 2024Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Noboru Okuzono, Hitoshi Hiratsuka, Katsuhiro Ito
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Patent number: 12148372Abstract: A driving circuit and a display panel are provided. The driving circuit includes a pixel circuit and a demultiplexing circuit. The pixel circuit includes a driving transistor, a light-emitting device, and a data writing module. The driving transistor is connected between a first power signal terminal and the light-emitting device in series, to generate a driving current. The data writing module is connected between the driving transistor and the demultiplexing circuit in series, to provide a data signal to the driving transistor. An output terminal of the demultiplexing circuit is connected to an input terminal of the data writing module through a data line. The demultiplexing circuit is configured to write the data signal to the data line when the driving transistor is performing threshold compensation.Type: GrantFiled: March 29, 2022Date of Patent: November 19, 2024Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma MicroElectronics Co., Ltd. Shanghai BranchInventors: Mengmeng Zhang, Yue Li, Yuantao Wu, Jing Huang
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Patent number: 12144404Abstract: The present disclosure provides a wristband and wristwatch. The wristband includes a wristband main body, configured to encircle on a wearing body, that the wristband main body includes a belt body and an inflatable bag arranged on the belt body, and a release structure is configured in a wall part of the wristband main body that surrounds the inflatable bag and the release structure communicates with an inner cavity of the inflatable bag, to release gas from the inflatable bag; and an inflating device, provided on the wristband main body, that the inflating device includes an inflating component and a driving component, the inflating component communicates with the inflatable bag, and the driving component is configured to move following a move of the wearing body and to drive the inflating component to inflate the inflatable bag.Type: GrantFiled: March 17, 2021Date of Patent: November 19, 2024Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventor: Xinming Li
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Patent number: 12144220Abstract: A display panel having a first display region and a second display region is provided. The display panel includes sub-pixels. Light transmittance of a non-light-emitting region in the second display region is greater than light transmittance of a non-light-emitting region in the first display region. For a first sub-pixel of the sub-pixels located in the first display region and a second sub-pixel of the sub-pixels located in the second display region that emit a same color, the first sub-pixel corresponds to a first pixel circuit, and the second sub-pixel corresponds to a second pixel circuit, and a width-to-length ratio of a driving transistor in the second pixel circuit is greater than a width-to-length ratio of a driving transistor in the first pixel circuit.Type: GrantFiled: March 20, 2023Date of Patent: November 12, 2024Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Yu Xin, Kang Yang, Lijing Han, Xian Chen
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Patent number: 12142170Abstract: A three-dimensional-image display device includes a display unit, a variable focus lens unit, and a controller. The display unit sequentially displays a first image displayed by a first image signal and a second image displayed by a second image signal, and that projects a display light of the first image and a display light of the second image. The variable focus lens unit switches the focal lengths for the display lights to respectively form, as virtual images, the first image and the second image on a first display surface and a second display surface. The controller controls, on the basis of a start timing at which writing, of an image signal of a different image, to pixels of the display unit starts, a projecting timing at which the display unit projects the display light of the first image and the display light of the second image.Type: GrantFiled: February 13, 2023Date of Patent: November 12, 2024Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.Inventors: Naoyasu Ikeda, Tetsushi Sato
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Publication number: 20240371892Abstract: Provided are a display panel and a display device. In an embodiment, the display panel includes: a substrate; pixel circuit islands provided at a side of the substrate, one of the pixel circuit islands includes at least one pixel circuit; light-emitting elements provided at a side of the pixel circuit islands away from the substrate and respectively electrically connected to the pixel circuits of the pixel circuit islands; and light-blocking structures including at least one of a reflective structure or a light-absorbing structure. In an embodiment, he light-blocking structures include first light-blocking structures, each of which is provided on at least one sidewall of one pixel circuit island of the pixel circuit islands. In an embodiment, the first light-blocking structure prevents light out of the pixel circuit island from entering the pixel circuit island through the sidewall of the pixel circuit island.Type: ApplicationFiled: July 19, 2024Publication date: November 7, 2024Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.Inventor: Yingteng Zhai
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Patent number: 12134097Abstract: A microfluidic chip and a fabrication method of the microfluidic chip are provided. The microfluidic chip includes an array substrate, and a hydrophobic layer disposed on a side of the array substrate. The hydrophobic layer includes at least one through-hole, and a through-hole of the at least one through-hole penetrates through the hydrophobic layer along a direction perpendicular to a plane of the array substrate. The microfluidic chip also includes at least one hydrophilic structure. A hydrophilic structure of the at least one hydrophilic structure is disposed in the through-hole.Type: GrantFiled: March 2, 2022Date of Patent: November 5, 2024Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Wei Li, Baiquan Lin, Kaidi Zhang, Yunfei Bai, Ping Su, Kerui Xi, Zhenyu Jia
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Patent number: 12134615Abstract: The present disclosure provides a compound having a structure represented by Formula 1, where X1-X4 are each independently selected from a carbon atom or a nitrogen atom, and at least two of X1-X4 are each a nitrogen atom; R1-R4 are independently absent or selected from hydrogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio, C1-C20 alkylamino, C6-C30 aryl, or C2-C30 heteroaryl; m is 1 or 2; n and q are each independently selected from 0, 1, or 2, n+q?1, and m+n+q=3; Ar is C6-C30 aryl. The molecular structure of the compound has a nitrogen-containing multidentate ligand suitable to form complexes with metal Yb or LiQ to form a metal organic complex having multidentate bondings. When applied to an OLED device, it can effectively lower the turn-on voltage and operating voltage, improve the efficiency, and prolong lifetime of the OLED device.Type: GrantFiled: January 12, 2021Date of Patent: November 5, 2024Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Wei Gao, Lu Zhai, Lei Zhang, Quan Ran, Wenpeng Dai, Yuyang Guo, Xia Li
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Patent number: 12135483Abstract: A display panel and a display apparatus are provided. The display panel includes an array substrate; a color film substrate; support pillars; pixel sub-units; and data lines. The support pillars include a primary support pillar that includes a first support pillar. The pixel sub-units are formed by crossing the scan lines and the data lines. The pixel sub-units each include a thin film transistor and a pixel electrode. The thin film transistor includes a gate, a source and a drain. The scan line is electrically connected to the gate. The data line is electrically connected to the source. The pixel electrode is electrically connected to the drain. The present disclosure can enhance supporting capacity of the display panel.Type: GrantFiled: June 7, 2023Date of Patent: November 5, 2024Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Jie Lin, Bingping Liu
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Patent number: 12133400Abstract: An organic light-emitting device includes an anode electrode and a cathode electrode that are arranged facing each other; a light-emitting layer arranged between the anode electrode and the cathode electrode; and a hole transport layer arranged between the anode electrode and the light-emitting layer, and including one or more layers. A layer, of the one or more layers of the hole transport layer, contacting the light-emitting layer has a HOMO energy level 12bH that is higher than a HOMO energy level 13H of the light-emitting layer. A difference ?E1 between the HOMO energy level 12bH of the layer contacting the light-emitting layer of the hole transport layer and the HOMO energy level 13H of the light-emitting layer is 0.32 eV or less.Type: GrantFiled: July 26, 2021Date of Patent: October 29, 2024Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.Inventors: Keita Hamada, Hiromu Hanashima, Shigeru Mori