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公开(公告)号：US11710459B2
公开(公告)日：2023-07-25
申请号：US17856182
申请日：2022-07-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： In-Suk Kim , Jungmoon Kim , Woo-Nyoung Lee
IPC: G09G3/3275 , G09G3/20 , G09G3/36
CPC classification number: G09G3/3275 , G09G3/2003 , G09G3/3685 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2310/0291 , G09G2320/0673 , G09G2330/028
Abstract: An electronic device includes a first source group and a second source group, each of which includes a plurality of source channels, and a gamma block that receives first to 2i-th initial voltages (i being an integer of 1 or more), outputs first to 2i-th intermediate voltages by amplifying the first to i-th initial voltages, and outputs first to i-th gamma voltages to the first source group by buffering the first to 2i-th intermediate voltages, and a first buffer block that receives the first to 2i-th intermediate voltages from the gamma block and buffers the first to 2i-th intermediate voltages so as to be output to the second source group, and the gamma block may include a first resistor string including a plurality of resistors connected between nodes from which the first to i-th gamma voltages are output.
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2.发明申请公开(公告)号：US20200373936A1
公开(公告)日：2020-11-26
申请号：US16738077
申请日：2020-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanho Byun , Minsung Kim , Jungmoon Kim
Abstract: A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
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公开(公告)号：US12032399B2
公开(公告)日：2024-07-09
申请号：US17721541
申请日：2022-04-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jungmoon Kim , Jeongpyo Kim , Insuk Kim , Yeonjeong Lee
CPC classification number: G05F1/575 , G09G3/20 , G09G2330/021
Abstract: An integrated circuit includes: a power supply circuit configured to generate a supply voltage from at least one of first and second power source voltages; and a system load configured to operate by receiving the supply voltage through an output node of the power supply circuit, wherein the power supply circuit includes: a first low drop-output (LDO) regulator configured to generate, from the first power source voltage, a first load current flowing to the system load through the output node; and a second LDO regulator configured to selectively generate a second load current flowing to the system load through the output node, from the second power source voltage based on a difference between voltages of internal nodes of the first LDO regulator.
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公开(公告)号：US11789479B2
公开(公告)日：2023-10-17
申请号：US17684600
申请日：2022-03-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jungmoon Kim
IPC: G05F1/575 , G05F1/565 , G09G3/3208
CPC classification number: G05F1/575 , G05F1/565 , G09G3/3208 , G09G2310/0243 , G09G2320/0626 , G09G2330/021
Abstract: A low drop-out (LDO) regulator includes a power transistor, an error amplifier and a droop adjusting circuit. The power transistor regulates a driving voltage based on a gate voltage of a gate node to provide an output voltage at an output node. The error amplifier outputs the gate voltage by amplifying a voltage difference between a reference voltage and a feedback voltage proportional to the output voltage. The droop adjusting circuit is connected between the gate node and the output node, is coupled to the output voltage, and adjusts the gate voltage to compensate for a change of the output voltage based on a change of a load current which is provided to a load from the output node.
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公开(公告)号：US11307708B2
公开(公告)日：2022-04-19
申请号：US16822685
申请日：2020-03-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Minsung Kim , Sanho Byun , Roots Huang , Yao Sheng Liang , Jungmoon Kim , Dongjo Park
Abstract: A touch sensing system is provided. The touch sensing system includes a touch panel including touch sensors arranged in a grid along row and column directions; a touch controller including at least one transmission circuit to transmit a signal to the touch sensors and at least one reception circuit to detect a signal from the touch sensors; and a switching circuit to selectively connect each of the touch sensors to the at least one transmission circuit and the at least one reception circuit in accordance with an operation mode. The switching circuit connects each of the touch sensors to the at least one reception circuit in a touch mode and connects a first portion of the touch sensors to the at least one reception circuit and a second portion of the touch sensors to the at least one transmission circuit in a proximity mode.
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Patent Agency Ranking
公开(公告)号：US20210019034A1
公开(公告)日：2021-01-21
申请号：US16822685
申请日：2020-03-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Minsung KIM , Sanho Byun , Roots Huang , Yao Sheng Liang , Jungmoon Kim , Dongjo Park
Abstract: A touch sensing system is provided. The touch sensing system includes a touch panel including touch sensors arranged in a grid along row and column directions; a touch controller including at least one transmission circuit to transmit a signal to the touch sensors and at least one reception circuit to detect a signal from the touch sensors; and a switching circuit to selectively connect each of the touch sensors to the at least one transmission circuit and the at least one reception circuit in accordance with an operation mode. The switching circuit connects each of the touch sensors to the at least one reception circuit in a touch mode and connects a first portion of the touch sensors to the at least one reception circuit and a second portion of the touch sensors to the at least one transmission circuit in a proximity mode.
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公开(公告)号：US11733798B2
公开(公告)日：2023-08-22
申请号：US17699728
申请日：2022-03-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Minsung Kim , Sanho Byun , Roots Huang , Yao Sheng Liang , Jungmoon Kim , Dongjo Park
CPC classification number: G06F3/04166 , G06F3/0446 , G06F2203/04107 , G06F2203/04108
Abstract: A touch sensing system is provided. The touch sensing system includes a touch panel including touch sensors arranged in a grid along row and column directions; a touch controller including at least one transmission circuit to transmit a signal to the touch sensors and at least one reception circuit to detect a signal from the touch sensors; and a switching circuit to selectively connect each of the touch sensors to the at least one transmission circuit and the at least one reception circuit in accordance with an operation mode. The switching circuit connects each of the touch sensors to the at least one reception circuit in a touch mode and connects a first portion of the touch sensors to the at least one reception circuit and a second portion of the touch sensors to the at least one transmission circuit in a proximity mode.
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公开(公告)号：US11798480B2
公开(公告)日：2023-10-24
申请号：US17118728
申请日：2020-12-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Byunghun Han , Insuk Kim , Jungmoon Kim , Sungjin Park , Seunggun Ham
IPC: G09G3/3258 , G09G3/3266 , G09G3/3275
CPC classification number: G09G3/3258 , G09G3/3266 , G09G3/3275 , G09G2300/0426 , G09G2300/0819 , G09G2310/0243 , G09G2310/08 , G09G2330/021 , G09G2330/028
Abstract: An OLED display system includes a display panel, a driving circuit, a voltage generator and a power management application circuit (PMAC). The driving circuit provides scan signals to the display panel. The voltage generator generates a negative voltage based on a first driving voltage having a positive level and a second driving voltage having a negative level and provides the negative voltage to the driving circuit. The PMAC includes a power management application circuit (PMIC) and an additional circuit distinct from the PMIC and disposed externally to the PMIC. The PMIC applies a high power supply voltage and a low power supply voltage to the display panel and generates the first driving voltage based on a battery voltage. The additional circuit generates the second driving voltage based on the battery voltage. The driving circuit generates at least one of the scan signals based on the negative voltage.
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公开(公告)号：US11777514B2
公开(公告)日：2023-10-03
申请号：US17696252
申请日：2022-03-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanho Byun , Minsung Kim , Jungmoon Kim
Abstract: A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
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10.发明授权公开(公告)号：US11296719B2
公开(公告)日：2022-04-05
申请号：US16738077
申请日：2020-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanho Byun , Minsung Kim , Jungmoon Kim
Abstract: A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
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