Patents Assigned to A*STAR
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Publication number: 20240176455Abstract: A display panel is provided, including a touch layer including a plurality of touch electrodes; a plurality of touch wires, wherein each of the touch wires is connected to one touch electrode respectively to transmit touch signals of the touch electrodes; and a plurality of conductive wire segments, wherein each of the conductive wire segments and the touch electrodes are in parallel connection. By adding impedance of parallel connection to each of the touch electrodes, voltage drop incurred by the common electrodes and the conductive wire segments is reduced, and the stability of the common voltage signal transmitted in the display region of the display panel is improved.Type: ApplicationFiled: May 13, 2022Publication date: May 30, 2024Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.Inventor: Xiaobin HU
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Publication number: 20240178239Abstract: The present application provides a display panel and a manufacturing method thereof, and a mobile terminal. The display panel includes a substrate, a film transistor layer, an oxygen supplement functional layer, and an electrode layer; the thin film transistor layer includes a gate electrode, a gate insulating layer, an active layer, and a source-drain electrode layer. Material of the active layer is metal oxide semiconductor; material of the electrode layer is metal oxide material. Wherein oxygen content on a side of the oxygen supplement functional layer close to the electrode layer is greater than oxygen content on a side of the oxygen supplement functional layer close to the active layer.Type: ApplicationFiled: May 10, 2022Publication date: May 30, 2024Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Bin Zhao, Hang Wang, Jun Zhao
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Publication number: 20240178234Abstract: A display panel includes a first substrate and a second substrate disposed opposite to each other and spaced apart from each other, and a second semiconductor layer. The first substrate includes a first base substrate, a first metal layer, a first semiconductor layer, and a second metal layer. The first metal layer is disposed on the first base substrate. The first semiconductor layer is disposed on the first metal layer. The second metal layer is disposed on the first semiconductor layer. The second substrate includes a second base substrate and a third metal layer. The third metal layer is disposed on the second base substrate. The second semiconductor layer is disposed between the first metal layer and the third metal layer. The first semiconductor layer is insulated from the second semiconductor layer.Type: ApplicationFiled: April 13, 2022Publication date: May 30, 2024Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Lixia LI
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Publication number: 20240178208Abstract: A manufacturing method of a light-emitting substrate and a display device are provided. The manufacturing method includes: providing a substrate provided with a plurality of electrodes, forming a patterned photoresist layer including openings exposing the electrodes on a surface of the substrate, forming connecting parts in the openings, removing the patterned photoresist layer, and bonding a plurality of light-emitting elements on the connecting parts, wherein slope angles of a plurality of connecting part sidewalls of the connecting parts are ranged between 40° and 140°. The method could improve a yield rate of light-emitting elements bonded to electrodes through connecting parts.Type: ApplicationFiled: March 30, 2023Publication date: May 30, 2024Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Hongzhao DENG
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Patent number: 11994497Abstract: The present application provides a testing device. The testing device includes: a box, a pressing mechanism, a sliding mechanism, a transmission mechanism, and first clamping mechanisms. The pressing mechanism is located inside the box. A gap between the pressing mechanism and the first side of the box is used to place substrates to be tested. The pressing mechanism is slidably connected to the sliding mechanism. The transmission mechanism is connected to the pressing mechanism to drive the pressing mechanism to move. Each first clamping mechanism is used to hold one of the substrates to be tested.Type: GrantFiled: December 22, 2021Date of Patent: May 28, 2024Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD.Inventor: Yichun Huang
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Patent number: 11996032Abstract: A display module includes a display panel, a power management circuit, a source driving circuit, and a signal processing circuit. The display panel includes a plurality of pixel units. The power management circuit generates a first signal. The source driving circuit is electrically connected to the plurality of pixel units. The signal processing circuit, electrically connected between the source driving circuit and the power management circuit, is configured to process the first signal into a second signal and load the second signal to the source driving circuit. An energy of the second signal is different from an energy of the first signal.Type: GrantFiled: March 28, 2023Date of Patent: May 28, 2024Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Fangyun Liu
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Patent number: 11994771Abstract: A drive backplate and a display device are provided. The drive backplate includes a substrate, a wiring layer arranged on one side of the substrate, and a reflective layer. The reflective layer and the wiring layer are arranged on the same side of the substrate. The wiring layer includes at least one first type line, and the reflective layer covers the first type line. Each first type line includes at least one first recess, and the reflective layer is partially inside the first recess, so the present application increases a contact area between the reflective layer and the first type line, increases a bonding force between the reflective layer and the wiring layer, reduces a risk of detachment of the reflective layer from the wiring layer, and improves product quality of the display device having the drive backplate.Type: GrantFiled: March 31, 2023Date of Patent: May 28, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Yunfei Dai, Jing Liu, Hongzhao Deng, Linnan Chen
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Patent number: 11996057Abstract: The present disclosure provides a backlight module and a display device. The backlight module includes a control circuit, a power chip, and light emitting devices. The control circuit include a control signal input terminal, and when the control signal input terminal is in a suspended state, the control circuit can output an enable signal. An enable pin of the power chip receives the enable signal, so that the power chip controls an output of a power supply voltage under a control of the enable signal. The light emitting components receive the power supply voltage, and are driven by the power supply voltage to emit light.Type: GrantFiled: December 16, 2021Date of Patent: May 28, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Jinfeng Liu
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Patent number: 11996028Abstract: A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.Type: GrantFiled: January 10, 2022Date of Patent: May 28, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Linfeng Liu
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Patent number: 11995278Abstract: The present application provides a touch sensing assembly and a touch sensing display device. The touch sensing assembly includes a touch sensing layer. By disposing the first connecting branch electrode between the second branch electrode and the second main electrode, transmission channels of current in the second direction in each of the touch sensing units is increased, thereby reducing the impedance of the second touch electrode in each touch unit. In addition, each of the second branch electrodes surrounds one of the first branch electrodes to increase the mutual capacitance between the first branch electrode and the second branch electrode.Type: GrantFiled: August 24, 2020Date of Patent: May 28, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Jieping Wang, Jian Ye
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Patent number: 11996062Abstract: A display panel and a gate driving circuit are provided. The gate driving circuit utilizes the pull-down control module to periodically pull up and pull down the voltage level of the second node. The voltage level of the second node is periodically a high voltage level. This effectively reduces the time duration when the second node corresponds to the high voltage level. After the TFTs electrically connected to the second node are forward biased, the TFTs could have sufficient recovery time. This solution effectively improves the bias condition of the TFTs in the pull-down control module and thus makes the circuit more stable and raises the reliability of the circuit.Type: GrantFiled: May 31, 2021Date of Patent: May 28, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yanqing Guan, Chao Tian, Haiming Cao
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Patent number: 11995229Abstract: The present disclosure provides a vehicle-mounted display adjustment device and a vehicle, including an adjustment unit and a control unit. Positions of human eyes are detected and located through a detection module in the control unit, and position information of the human eyes is sent to a control module in the control unit. The control module sends a control signal to the adjustment unit according to a gaze direction of the human eyes to drive the adjustment unit to adjust an angle of the vehicle-mounted display.Type: GrantFiled: November 11, 2020Date of Patent: May 28, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shoudong Zhang, Suimang Song
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Patent number: 11994777Abstract: The present application discloses a display panel and a display device. The display panel includes a plurality of pixel electrodes and a common electrode arranged correspondingly, and a plurality of light shielding electrodes, by opening holes on the common electrode corresponding to the light-shielding electrode or adjust a preset voltage on the light-shielding electrode, a vertical electric field is formed between the common electrode and the corresponding light-shielding electrode, which hinders a lateral movement of impurity ions and relieves a problem of line residue of currently LCD panels.Type: GrantFiled: July 21, 2021Date of Patent: May 28, 2024Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Baolin Chi
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Patent number: 11994770Abstract: A curved surface backlight module and a curved surface display device are provided. The backlight module includes a plurality of light-emitting units. The light-emitting units include reflector cups. The plurality of reflector cups include first reflector cups located in an edge partition and second reflector cups located in a central partition. The first reflector cups are asymmetric with respect to a first curved surface normal corresponding to a position at where the first reflector cups are located. A maximum brightness center of the first reflectors of the edge partition can be made to emit light parallel to a user's viewing direction, and brightness attenuation at an edge of a display device can be relieved.Type: GrantFiled: December 15, 2021Date of Patent: May 28, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shiyuan Xiao, Suimang Song
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Patent number: 11994764Abstract: A display device is provided. The display device includes a back frame, a display module, and a polarizer. The back frame has a cavity, and the display module is disposed in the cavity. The polarizer is arranged on the display module and a body of the back frame surrounding the display module. The polarizer is extended to the back frame in the non-display area, thereby removing a front frame in the prior art, reducing a thickness of the display device, and increasing an area of the display area.Type: GrantFiled: December 16, 2021Date of Patent: May 28, 2024Assignee: Suzhou China Star Optoelectronics Technology Co., Ltd.Inventors: Lu Chen, Qiong Liu, Junjie Li, Bangyin Peng, Dan Cao
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Patent number: 11995274Abstract: The present invention provides a mask, a display panel, and a method for manufacturing thereof. The display panel includes a display area and a peripheral area surrounding the display area, and the peripheral area comprises a wiring area and a bonding area. The wiring area is provided with a first ground wiring. In the present invention, the first ground wiring is routed through a double-layer or multi-layer metal wiring, and an electrostatic discharge (ESD) protection effect can be achieved in the use of a finished product.Type: GrantFiled: August 28, 2022Date of Patent: May 28, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Xianjin Ge
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Patent number: 11996063Abstract: An LCD panel, a driving method and a display device are provided. The LCD panel includes a fixed refresh rate mode or a dynamic refresh rate mode. In response to the variable refresh rate, the LCD panel provides a variable common voltage to the first electrode plate of the storage capacitor, thereby dynamically improving or eliminating the issues of the low voltage of the pixel electrode.Type: GrantFiled: May 28, 2021Date of Patent: May 28, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu Liao
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Patent number: 11996415Abstract: A display panel and a method of manufacturing the display panel are provided. The display panel includes a substrate and a transistor layer. The transistor array layer includes a first metal layer disposed above the substrate. The first metal layer includes a gate, a second metal layer disposed above the first metal layer. The second metal layer includes a source, a drain, and a metal trace, and at least one repair part disposed on both sides of the metal trace. The repair part and the metal trace are configured to form a signal trace.Type: GrantFiled: July 21, 2020Date of Patent: May 28, 2024Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Zhihao Cao, Wei Tang, Jianlong Huang
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Patent number: 11996417Abstract: Embodiments of the present disclosure provide a display panel comprising a plurality of first connecting lines and a plurality of second connecting lines which are cross-arranged, a first insulation layer, a second insulation layer defining first holes extending through the first insulation layer and the second insulation layer and second holes extending through the second insulation layer, and a plurality of third connecting lines, wherein each of the plurality of the third connecting lines is electrically connected to a corresponding one of the plurality of the first connecting lines via a corresponding one of the first hole and is electrically connected to a corresponding one of the plurality of the second connecting lines via a corresponding one of the second hole, and each of the second holes does not overlap the plurality of the first connecting lines in a top view.Type: GrantFiled: April 22, 2020Date of Patent: May 28, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Lisha Luo, Ilgon Kim, Bin Zhao, Xin Zhang, Jun Zhao
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Patent number: 11996025Abstract: A GOA circuit and a display panel are proposed. An inverting control module controls the voltage level of the first node to be opposite to the voltage level of the second node under the control of an (n+1)th-stage clock signal, so that a DC path between a constant high voltage terminal and a first constant low voltage terminal is not formed. When a first node is at the low voltage level, the voltage applied on the second node transitions from the low voltage level to high voltage level. Accordingly, the second node is constantly at the high voltage level at the pull-down maintenance stage in the GOA circuit, and the nth-stage gate-driven signal terminal is still at the low voltage level. In this way, the GOA circuit will not become ineffective.Type: GrantFiled: February 18, 2022Date of Patent: May 28, 2024Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Guangyao Li