POV display device and control method therefor

    公开(公告)号:US12002411B2

    公开(公告)日:2024-06-04

    申请号:US18022403

    申请日:2020-08-20

    CPC classification number: G09G3/32 F16M11/08 H01L33/62 F16M2200/00 G09G2300/04

    Abstract: The present invention relates to a rotary type display device comprising a fixed module and a rotation module, wherein the rotation module comprises: a rotating body frame; a light source module; a first sensor for sensing a rotational speed and a phase of the rotation module; and an image output control unit for controlling an image output using the light source module, by using a first sensing value obtained through the first sensor, and the fixed module comprises: a fixed body frame; a motor for rotating the rotating body frame; a second sensor for sensing the rotational speed and the phase of the rotation module; and a motor control unit for controlling at least one of the rotational speed and phase of the motor by using a second sensing value obtained through the second sensor.

    POV display device and control method therefor

    公开(公告)号:US11908357B2

    公开(公告)日:2024-02-20

    申请号:US17916915

    申请日:2020-04-23

    CPC classification number: G09G3/005 H01L25/0753 H01L25/167 G09G2360/12

    Abstract: The present invention provides a persistence of vision (POV) display device using a light emitting element, the display device comprising: a fixed module including a motor; a rotating module located on the fixed module and rotated by the motor; at least one panel coupled to the rotating module; a plurality of light sources arranged on the panel and having a plurality of pixels; a light source module including a light emitting element array in which the plurality of light sources are arranged in a longitudinal direction; memory that stores video data received from an external source device; and a controller that controls the order of input of the video data and the order of output of the video data.

    Lamp using semiconductor light-emitting elements

    公开(公告)号:US11114598B2

    公开(公告)日:2021-09-07

    申请号:US16964883

    申请日:2018-04-13

    Abstract: Discussed is a lamp or a lighting device including a wiring substrate; a bus electrode provided on the wiring substrate; a plurality of electrode lines provided on the wiring substrate, and extending from the bus electrode, each electrode line having one end and a central portion located between the one end and the bus electrode; a plurality of semiconductor light-emitting elements aligned along an extending direction of the plurality of electrode lines, and disposed to be spaced apart from adjacent electrode lines of the plurality of electrode lines by varying distances, respectively; and a plurality of transparent electrodes that respectively provide an electrical connection between the plurality of electrode lines and the plurality of semiconductor light-emitting elements, wherein the respective varying distances between the plurality of semiconductor light-emitting elements and each of the adjacent electrode lines decrease toward the central portion of the each electrode line.

    Scroll compressor having compression chamber oil supplies having stages in which oil supply overlaps and stages in which oil supply does not overlap

    公开(公告)号:US11603840B2

    公开(公告)日:2023-03-14

    申请号:US17350516

    申请日:2021-06-17

    Abstract: A scroll compressor according to the present disclosure includes a fixed scroll, an orbiting scroll forming first and compression chambers with the fixed scroll, first and second compression chamber oil supply holes formed through the orbiting scroll to communicate with the first compression chamber and the second compression chamber, respectively, wherein when a section in which the first compression chamber oil supply hole is opened toward the first compression chamber is a first oil supply section and a section in which the second compression chamber oil supply hole is opened toward the second compression chamber, a non-overlap section between the first oil supply section and the second oil supply section may be longer than an overlap section between the first oil supply section and the second oil supply section, so as to prevent communication between the first and second compression chambers, thereby suppressing leakage between the compression chambers.

    Lamp employing semiconductor light-emitting element

    公开(公告)号:US11953168B2

    公开(公告)日:2024-04-09

    申请号:US17257771

    申请日:2018-09-27

    CPC classification number: F21S41/143 H01L25/0753 H01L33/62

    Abstract: Discussed are a lamp or a lamp device employing a semiconductor light-emitting element to have a high degree of luminance uniformity. A lamp includes a circuit board; a bus electrode formed along one direction on the circuit board; electrode lines on the circuit board to extend from the bus electrode; semiconductor light-emitting elements arranged in the direction in which the electrode lines are formed, and spaced a predetermined distance apart from a nearby electrode line; transparent electrodes for electrically connecting the semiconductor light-emitting elements to the electrode lines; a current input unit formed along the one direction in parallel to the bus electrode; and connecting electrodes arranged between the bus electrode and the current input unit along the one direction, to electrically connect the bus electrode to the current input unit, wherein a resistance value of certain of the connecting electrodes is different from a resistance value of the rest.

    Scroll compressor of lower compression type enabling active oil supply

    公开(公告)号:US11713752B2

    公开(公告)日:2023-08-01

    申请号:US17075198

    申请日:2020-10-20

    CPC classification number: F04B27/109 F04B39/0253 F04C29/025 F04C29/065

    Abstract: A compressor includes a driving motor, a centrifugation space, a discharge pipe, a rotary shaft, a compression portion, a pump assembly, and an oil pickup. The centrifugation space is defined inside a case by a downstream side of the driving motor and the case, and enables centrifugation of a compressed refrigerant and a lubricant oil. The discharge pipe can discharge the refrigerant from the centrifugation space outside the case. The rotary shaft is coupled to a rotor of the driving motor and defines an oil supply path. The compression portion is provided at an upstream side of the driving motor and can compress the refrigerant as the rotary shaft rotates. The pump assembly is provided below the rotary shaft and can pump oil as rotated with the rotary shaft. The oil pickup defines an oil supply path between the pump assembly and a low oil space formed inside the case.

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