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公开(公告)号：US11775123B2
公开(公告)日：2023-10-03
申请号：US17713085
申请日：2022-04-04
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik Kim , Ga Young Kim , Young Sik Kim , Sang Chul Lee
CPC classification number: G06F3/0445 , G06F3/0418 , G06F3/0446 , G06F2203/04111 , G06F2203/04112
Abstract: A touch sensor includes a sensor unit including a plurality of first electrodes in an active area spaced apart from each other, and at least one second electrode, a plurality of sensing channels respectively coupled to one of the first electrodes, and each sensing channel including a reference node having a variable voltage coupled to the at least one second electrode, and a processor configured to receive output signals from the sensing channels, and detect a touch input based on the output signals. The plurality of sensing channels may be configured to supply driving signals to respective first electrodes during a first period, receive sensing signals from respective first electrodes during a second period, and generate the output signals corresponding to the sensing signals received from respective first electrodes based on potentials of the respective reference nodes. A method of driving a touch sensor also is disclosed.
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公开(公告)号：US20230280870A1
公开(公告)日：2023-09-07
申请号：US18133339
申请日：2023-04-11
Applicant: Samsung Display Co., Ltd.
Inventor： Chang Bum KIM , Hyung Chul Kim , Jung Mok Park , Young Sik Kim , Young Seok Yoo
IPC: G06F3/044 , G06F3/041 , H10K50/844 , H10K50/86 , H10K59/40 , H10K59/131
CPC classification number: G06F3/0445 , G06F3/0412 , G06F3/0416 , G06F3/0446 , H10K50/844 , H10K50/865 , H10K59/40 , H10K59/131 , G06F2203/04112
Abstract: A display device includes a display unit having a display area with a first hole formed therein, and an input sensing unit which is disposed on the display unit and having a second hole corresponding to the first hole. the input sensing unit includes a base layer which includes: an adjacent area adjacent to the second hole; and a sensing area overlapping the display area, detection electrodes disposed on the sensing area; and a first connection wiring disposed on the adjacent area and that electrically connects at least two detection electrodes spaced apart by the second hole, disposed at respective sides of the second hole. The display unit includes dams disposed adjacent to the first hole, each of the dams forming a closed loop along edges of the first hole. The first connection wiring overlaps at least one of the dams.
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公开(公告)号：US11656730B2
公开(公告)日：2023-05-23
申请号：US17592516
申请日：2022-02-04
Applicant: Samsung Display Co., Ltd.
Inventor： Chang Bum Kim , Hyung Chul Kim , Jung Mok Park , Young Sik Kim , Young Seok Yoo
CPC classification number: G06F3/0445 , G06F3/0412 , G06F3/0416 , G06F3/0446 , H01L27/323 , H01L27/3276 , H01L51/5253 , H01L51/5284 , G06F2203/04112
Abstract: A display device includes a display unit having a display area with a first hole formed therein, and an input sensing unit which is disposed on the display unit and having a second hole corresponding to the first hole, the input sensing unit includes a base layer which includes: an adjacent area adjacent to the second hole; and a sensing area overlapping the display area, detection electrodes disposed on the sensing area; and a first connection wiring disposed on the adjacent area and that electrically connects at least two detection electrodes spaced apart by the second hole, disposed at respective sides of the second hole. The display unit includes dams disposed adjacent to the first hole, each of the dams forming a closed loop along edges of the first hole. The first connection wiring overlaps at least one of the dams.
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公开(公告)号：US11640211B2
公开(公告)日：2023-05-02
申请号：US16921764
申请日：2020-07-06
Applicant: Samsung Display Co., Ltd.
Inventor： Jung Hak Kim , Do Ik Kim , Ga Young Kim , Young Sik Kim , Sang Chul Lee
IPC: G06F3/041 , G06F3/044 , G09G3/3225
Abstract: A display device includes a display region and a sensing region overlapping with each other, a plurality of pixels in the display region, a plurality of first electrodes arranged in a first direction in the sensing region, a plurality of second electrodes arranged in a second direction in the sensing region, and a driving circuit including a display driver for driving the pixels corresponding to image data, and a touch driver for sensing a touch input using a sensing signal input from each of the first electrodes, and configured to supply a noise compensation signal corresponding to the image data to the second electrodes during a period in which the pixels are driven.
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公开(公告)号：US20220155895A1
公开(公告)日：2022-05-19
申请号：US17532918
申请日：2021-11-22
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Ga Young Kim , Sang Hyun Lim , Young Sik Kim , Sang Chul Lee , Hwan Hee Jeong
IPC: G06F3/041 , G09G3/3208 , G06F3/047 , H01L27/32 , G06F3/044
Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.
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Patent Agency Ranking
公开(公告)号：US11190866B2
公开(公告)日：2021-11-30
申请号：US16917709
申请日：2020-06-30
Applicant: Samsung Display Co., Ltd.
Inventor： Jeong Heon Lee , Jong Tae Kim , Young Sik Kim
Abstract: A display device includes: a display panel; a frame disposed on the display panel and having a first hole and a second hole spaced apart from the first hole; a vibration device disposed on the display panel and received in the first hole; and a battery disposed on the display panel and received in the second hole. The frame has a first long side edge, a second long side edge opposite to the first long side edge, a first short side edge disposed between the first and second long side edges, and a second short side edge opposite to the first short side edge. The vibration device is disposed adjacent to the first long side edge, and the battery is disposed adjacent to the second long side edge.
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公开(公告)号：US11068099B2
公开(公告)日：2021-07-20
申请号：US16889079
申请日：2020-06-01
Applicant: Samsung Display Co., Ltd.
Inventor： Jung Hak Kim , Do Ik Kim , Young Sik Kim , Sang Chul Lee
IPC: G06F3/044 , G06F3/041 , G06F3/047 , H01L27/32 , H01L51/52 , G09G3/3266 , G09G3/3275 , G09G3/20
Abstract: A touch sensor includes a sensor unit having a first region including at least one pair of a first electrode and a second electrode, and a second region including at least two pairs of first electrodes and second electrodes, a plurality of sensing channels each including first and second input terminals, wherein the first input terminals of the sensing channels are connected to different ones of the first electrodes, an amplifying circuit connected between the second input terminals of the sensing channels and the second electrodes, and an input control unit connected between the amplifying circuit and the second electrodes, the input control unit including a first resistor connected to the second electrode of the first region, and a second resistor commonly connected to the second electrodes of the second region.
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公开(公告)号：US20210048842A1
公开(公告)日：2021-02-18
申请号：US16891026
申请日：2020-06-02
Applicant: Samsung Display Co., Ltd.
Inventor： Si Young Choi , Jong Tae Kim , Young Sik Kim , Sang Wook Yoo , Jeong Heon Lee
Abstract: According to one aspect of the invention, a circuit board for a display device includes: a first layer; a first lead line disposed on the first layer; and a sound generator disposed on the first layer, and the sound generator including: a first electrode to receive a first driving voltage; a second electrode to receive a second driving voltage; and a second layer disposed between the first electrode and the second electrode to contract or expand according to the first driving voltage and the second driving voltage; and a first solder to electrically communicate the first lead line and the first electrode.
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公开(公告)号：US10782826B2
公开(公告)日：2020-09-22
申请号：US16446717
申请日：2019-06-20
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik Kim , Sang Hyun Lim , Ga Young Kim , Young Sik Kim , Sang Chul Lee
Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
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公开(公告)号：US10747345B2
公开(公告)日：2020-08-18
申请号：US15352355
申请日：2016-11-15
Applicant: Samsung Display Co., Ltd.
Inventor： Jun Young Ko , Dong Gun Park , Jin Oh Kwag , Young Sik Kim , Tae Joon Kim
Abstract: A display device includes a display panel and a first sensor configured to sense a position of a touch of a user and a second sensor configured to sense a pressure of the touch. The first sensor and the second sensor may be provided inside or surrounding an area of the display panel. The second sensor includes a first conductor, a second conductor spaced apart from the first conductor, and configured to form capacitance with the first conductor, and one or more variable resistance elements connected with the first conductor.
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