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公开(公告)号：US20230147349A1
公开(公告)日：2023-05-11
申请号：US17812561
申请日：2022-07-14
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hun Park , Ji Hoon Kim , Yong Sub So
CPC classification number: G06F3/04184 , G06F3/04166 , G09G5/12
Abstract: A display device is provided. The display device includes a display unit, a touch unit, a display driver configured to drive the display unit and including a synchronization signal generator, and a touch driver configured to drive the touch unit and including a synchronization signal receiver and a touch signal adjuster, wherein the synchronization signal generator is configured to generate a first synchronization signal supporting a frequency of a display signal applied to the display unit based on input frame frequency information and a second synchronization signal supporting the frequency of the display signal and including the frame frequency information, based on the frame frequency information and the first synchronization signal, and wherein the synchronization signal receiver is configured to receive the horizontal synchronization signal.
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公开(公告)号：US11755140B2
公开(公告)日：2023-09-12
申请号：US17523294
申请日：2021-11-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sang Hun Park , Yong Sub So
IPC: G06F3/041 , H01L25/075 , G06F3/044
CPC classification number: G06F3/04164 , G06F3/0412 , H01L25/0753 , G06F3/044
Abstract: A touch sensor includes a sensor cell coupled to a sensor line, a sensor transmitter including a first switch coupled to the sensor line and a power supply which supplies a charging signal to the sensor line during a first period during which the first switch is turned on, and a sensor receiver including a second switch coupled to the sensor line and a sensor channel which receives a sensing signal from the sensor line during a second period during which the second switch is turned on. The sensor receiver further includes a coupling capacitor including a first electrode coupled to the second switch and a second electrode coupled to the sensor channel.
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公开(公告)号：US20220164070A1
公开(公告)日：2022-05-26
申请号：US17397847
申请日：2021-08-09
Applicant: Samsung Display Co., Ltd.
Inventor： Ji Hoon KIM , Sang Hun Park
Abstract: A touch sensing unit includes a base substrate, touch sensing lines disposed on the base substrate, a first touch insulating layer disposed on the touch sensing lines, and touch electrodes disposed on the first touch insulating layer. The touch electrodes overlap the touch sensing lines in a thickness direction. Each of the touch electrodes has a mesh shape including a body and mesh holes. The bodies do not overlap the touch sensing lines in the thickness direction in a remaining area, except for partial areas.
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公开(公告)号：US11941202B2
公开(公告)日：2024-03-26
申请号：US17746059
申请日：2022-05-17
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sang Hun Park , Yun A Ma , Mi Hee Son
IPC: G06F3/044 , G06F1/16 , G06F3/041 , G09G3/3233
CPC classification number: G06F3/04166 , G06F1/1643 , G06F3/044 , G06F3/0443 , G09G3/3233 , G09G2354/00
Abstract: An input sensor includes sensing electrodes, and multiplexers for connecting sensing electrodes corresponding to one group of the sensing electrodes to one output terminal. Each of the multiplexers includes a multiplexer circuit including a plurality of switching transistors, and a shift register array for outputting selection signals for controlling the plurality of switching transistors. Each of the switching transistors includes sub-switching transistors connected in parallel between one of the sensing electrodes corresponding to the one group and the output terminal. The sub-switching transistors are sequentially turned on in response to one of the selection signals.
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公开(公告)号：US11635846B2
公开(公告)日：2023-04-25
申请号：US17411317
申请日：2021-08-25
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sang Hun Park , Yong Sub So
Abstract: A display device includes a display substrate having a non-display area at least partially surrounding a display area, and pixels in the display area, and a sensor substrate covering the pixels and a portion of the display substrate. The display device also includes first and second pads in the non-display area, a first sensor on the sensor substrate, a first sensor line connecting the first pad and the first sensor, and a second sensor line connecting the second pad and the first sensor. In addition, the display device includes a sensor transmitter to supply a sensing signal to the first pad during a first period, and a sensor receiver to receive a sampling signal from the second pad during a second period after the first period.
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Patent Agency Ranking
公开(公告)号：US11625134B2
公开(公告)日：2023-04-11
申请号：US17397847
申请日：2021-08-09
Applicant: Samsung Display Co., Ltd.
Inventor： Ji Hoon Kim , Sang Hun Park
Abstract: A touch sensing unit includes a base substrate, touch sensing lines disposed on the base substrate, a first touch insulating layer disposed on the touch sensing lines, and touch electrodes disposed on the first touch insulating layer. The touch electrodes overlap the touch sensing lines in a thickness direction. Each of the touch electrodes has a mesh shape including a body and mesh holes. The bodies do not overlap the touch sensing lines in the thickness direction in a remaining area, except for partial areas.
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公开(公告)号：US10170054B2
公开(公告)日：2019-01-01
申请号：US14691039
申请日：2015-04-20
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hun Park , Dong Wan Park , Myoung Seop Song
IPC: G09G3/3233 , G09G3/3275
Abstract: An organic light emitting display that defines a plurality of pixels arranged in a matrix form as a plurality of pixel row groups, each of which includes the same number of pixel rows and individually drives the respective pixel row groups. The organic light emitting display includes a display unit including the plurality of pixels, a plurality of data lines, and a plurality of scan lines: a scan driving unit configured to apply scan signals to the plurality of pixels; a data driving unit configured to apply data voltages that are provided to the plurality of pixels to a first output line; and a data distribution unit configured to selectively connect at least two data lines that are continuously arranged to the first output line according to demultiplexing signals. The demultiplexing signals that correspond to the pixel rows included in the respective pixel row groups have different pulse widths.
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公开(公告)号：US12175041B2
公开(公告)日：2024-12-24
申请号：US17812561
申请日：2022-07-14
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sang Hun Park , Ji Hoon Kim , Yong Sub So
Abstract: A display device is provided. The display device includes a display unit, a touch unit, a display driver configured to drive the display unit and including a synchronization signal generator, and a touch driver configured to drive the touch unit and including a synchronization signal receiver and a touch signal adjuster, wherein the synchronization signal generator is configured to generate a first synchronization signal supporting a frequency of a display signal applied to the display unit based on input frame frequency information and a second synchronization signal supporting the frequency of the display signal and including the frame frequency information, based on the frame frequency information and the first synchronization signal, and wherein the synchronization signal receiver is configured to receive the horizontal synchronization signal.
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公开(公告)号：US11842012B2
公开(公告)日：2023-12-12
申请号：US17887318
申请日：2022-08-12
Applicant: Samsung Display Co., LTD.
Inventor： Yong Sub So , Ji Hoon Kim , Sang Hun Park
CPC classification number: G06F3/04182 , G06F3/0412 , G06F3/0443 , G06F3/0446
Abstract: A display device includes: a display panel; a sensor unit on the display panel; a touch driver including a signal processor configured to output a final touch point coordinate using a touch sensing signal received from the sensor unit; and an application processor configured to provide filter size information to the touch driver, wherein the signal processor includes a jitter remover configured to receive a current touch point coordinate from a coordinate calculator and to output the final touch point coordinate from which a jitter component is removed by filtering with a jitter filter, and wherein the jitter remover includes a filter size determiner configured to vary a range of the jitter filter in response to the filter size information.
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公开(公告)号：US11269448B2
公开(公告)日：2022-03-08
申请号：US16987323
申请日：2020-08-06
Applicant: Samsung Display Co., Ltd.
Inventor： Yong Jin Jee , Gwang-Bum Ko , Sang Hun Park
Abstract: A touch sensor includes a plurality of touch driving electrodes arranged in each of a plurality of touch driving columns in a column direction, and a plurality of touch sensing electrodes arranged in each of a plurality of touch sensing columns in the column direction, the plurality of touch driving columns and the plurality of touch sensing columns being alternately arranged in a row direction. In each of the plurality of touch driving columns, two or more odd-numbered touch driving electrodes among the plurality of touch driving electrodes are substantially simultaneously driven during a first touch group driving period. In each of the plurality of touch driving columns, two or more even-numbered touch driving electrodes among the plurality of touch driving electrodes are substantially simultaneously driven during a second touch group driving period that is different from the first touch group driving period.
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