Abstract: A quantum dot ink, a manufacturing method of a full-color film, and a display panel are provided. The quantum dot ink includes a plurality of quantum dots, a plurality of scattering particles, a polar solvent, and a transparent polymer material, wherein the transparent polymer material is used as a host material.
Type:
Grant
Filed:
July 9, 2020
Date of Patent:
May 23, 2023
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SHENZHEN CHINA SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Abstract: A method and a device for reference-diagram editing for a chart, and a non-transitory computer-readable storage medium are provided. The method is performed by a mobile terminal and includes, during display of a chart: detecting whether a chart operation object is selected; switching the chart to an editable state in response to detecting that the chart operation object is selected; detecting preset edit-touch events in a control region of an edit page corresponding to the chart after switching the chart to the editable state, where the edit page includes the control region and the chart, and the control region coincides with a region where a main chart of the chart is located; performing a reference-diagram editing operation on the main chart of the chart according to the edit-touch events detected in the control region of the edit page to edit a reference diagram on the main chart.
Abstract: An image sensor includes a plurality of image sensor cells, each configured to generate or not generate an image signal in response to one or more control signals, and a first driver generating a first control signal. The first driver includes a first positive supply terminal connected to a first power supply node. The image sensor also includes a voltage generator generating a first voltage at the first power supply node, where the voltage generator includes a plurality of charge pump cells selectably sourcing charge to the first power supply node in response to one of multiple enable signals, and a charge pump cell quantity controller circuit generating the enable signals. Each enable signal is either in an active or inactive state, and each charge pump cell sources charge to the first power supply node in response to receiving an enable signal in an active state.
Abstract: The present invention relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present invention and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.
Abstract: A motor system comprises a motor comprising: a stator with a plurality of subwindings each having a plurality of phase connections for receiving phase voltages, wherein each of the subwindings is electrically insulated from each of the other subwindings; a rotor comprising a plurality of permanent magnets or energisable electromagnets; a controller comprising a plurality of control parts, each control part associated with a respective subwinding, each control part being configured to monitor phase voltages of the associated subwinding, between phase connections. The system further comprises a controller configured to: obtain, from each control part, at set discrete time intervals, a plurality of back measured electromotive force, EMF, readings for each of the respective subwindings; using the plurality of measured back EMF readings and an a priori knowledge of the motor's construction to estimate a commutation event timing.
Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.
Abstract: A building block includes a block body of an integrated structure. The block body includes a main body, first splicing portions, second splicing portions, a first raised portion, and two second raised portions. The main body is elongated and horizontally extends from left to right. The first splicing portions horizontally extend outwards from one end of the main body. The second splicing portions obliquely extend forward or backward from a middle position of an upper surface of the main body. An outer side surface of the first raised portion recesses to form first splicing grooves tightly docked with and fixed with first splicing portions or second splicing portions of another building block. Two ends of an upper surface of the main body extend upwards to form the two second raised portions. An upper surface of each of the second raised portions recesses to form second splicing grooves.
Type:
Grant
Filed:
October 25, 2022
Date of Patent:
May 23, 2023
Assignee:
SHENZHEN EIGHTEEN NINE TECHNOLOGY CO., LTD.