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Patent Agency Ranking
公开(公告)号：US10515594B2
公开(公告)日：2019-12-24
申请号：US15493565
申请日：2017-04-21
Applicant: Samsung Display Co., Ltd.
Inventor： Jin-won Jang , Won-hyoung Kang , Seung-wan Kim , Gwangteak Lee , Songyi Han , Jin-taek Hong , Seunghwan Moon
Abstract: A backlight unit includes a light source module including a first connection pin and a second connection pin electrically connected to the first connection pin, a power converter which provides a driving voltage to the light source module, a connector which receives a first enable signal via a first signal line and provides a second enable signal via a second signal line and a driving circuit which controls a generation of the driving voltage from the power converter in response to the second enable signal. When the connector is electrically connected to the first and second connection pins, the first enable signal is transmitted to the first connection pin via the first signal line and the connector, and the second enable signal from the second connection pin is provided to the driving circuit via the connector and the second signal line.
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公开(公告)号：US20170263193A1
公开(公告)日：2017-09-14
申请号：US15455749
申请日：2017-03-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Songyi Han , Gwangteak Lee , Won-Hyoung Kang
CPC classification number: G09G3/3406 , G09G3/342 , G09G3/3611 , G09G3/3648 , G09G2310/0237 , G09G2320/0626 , G09G2320/0646
Abstract: Provided is a display device including a plurality of light sources configured to be driven by a driving voltage, turned on during an on section, and turned off during an off section, a display panel configured to display an image by using light outputted from the light sources, a voltage converter connected to the light sources and configured to generate the driving voltage, and a backlight control circuit including a light source driving circuit and a voltage drop circuit. The light source driving circuit includes a pulse generator including a control input terminal configured to receive a first voltage during the on section and receive a second voltage during the off section and output a control pulse signal to control a level of the driving voltage based on a voltage applied to the control input terminal. The voltage drop circuit applies the second voltage to the control input terminal during the off section. The second voltage is smaller than the first voltage.
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公开(公告)号：US11672144B2
公开(公告)日：2023-06-06
申请号：US17117627
申请日：2020-12-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Gwangteak Lee , Seongsik Choi , Yong-sik Jung , Yong-Sik Hwang
CPC classification number: H01L51/5275 , H01L27/326 , H01L51/5253
Abstract: The present disclosure relates to a display device. The display device includes a substrate. The substrate includes a first display area, a second display area, a plurality of first pixels, a plurality of second pixels, and a plurality of diffraction patterns. The plurality of first pixels are disposed on the first display area. The plurality of second pixels are disposed on the second display area. The plurality of diffraction patterns are disposed on the second pixels When viewed in a plane orientation, an array density of the first pixels disposed in the first display area is greater than an array density of the second pixels disposed in the second display area.
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公开(公告)号：US10283058B2
公开(公告)日：2019-05-07
申请号：US15455749
申请日：2017-03-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Songyi Han , Gwangteak Lee , Won-Hyoung Kang
Abstract: Provided is a display device including a plurality of light sources configured to be driven by a driving voltage, turned on during an on section, and turned off during an off section, a display panel configured to display an image by using light outputted from the light sources, a voltage converter connected to the light sources and configured to generate the driving voltage, and a backlight control circuit including a light source driving circuit and a voltage drop circuit. The light source driving circuit includes a pulse generator including a control input terminal configured to receive a first voltage during the on section and receive a second voltage during the off section and output a control pulse signal to control a level of the driving voltage based on a voltage applied to the control input terminal. The voltage drop circuit applies the second voltage to the control input terminal during the off section. The second voltage is smaller than the first voltage.
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公开(公告)号：US09142189B2
公开(公告)日：2015-09-22
申请号：US13767170
申请日：2013-02-14
Applicant: Samsung Display Co., Ltd.
Inventor： SeungYoung Choi , Min-Soo Choi , Hwanwoong Lee , Gwangteak Lee
IPC: G09G5/10
Abstract: A backlight unit includes a power supply converter including a primary winding connected to an input power supply voltage, and a secondary winding which is connected to an output node and outputs a light emitting diode drive voltage to the output node in response to a mode signal and a switching control signal; and a light emitting diode string connected to the output node of the power supply converter, where the power supply converter serially connects a boosting winding to the secondary winding and the output node and when the mode signal represents a three dimensional image display mode, and outputs a boosted light emitting diode drive voltage to the output node through the boosting winding.
Abstract translation: 背光单元包括电源转换器，其包括连接到输入电源电压的初级绕组和连接到输出节点的次级绕组，并且响应于模式信号将输出节点的发光二极管驱动电压输出， 切换控制信号; 以及连接到电源转换器的输出节点的发光二极管串，其中电源转换器将升压绕组串联连接到次级绕组和输出节点，并且当模式信号表示三维图像显示模式时，并且输出 升压的发光二极管通过升压绕组驱动电压到输出节点。
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