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公开(公告)号：US20210373695A1
公开(公告)日：2021-12-02
申请号：US17399216
申请日：2021-08-11
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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公开(公告)号：US20190064971A1
公开(公告)日：2019-02-28
申请号：US16174475
申请日：2018-10-30
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
CPC classification number: G06F3/044 , G06F3/0412
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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公开(公告)号：US20190310730A1
公开(公告)日：2019-10-10
申请号：US16451106
申请日：2019-06-25
Applicant: Japan Display Inc.
Inventor： Koji ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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Patent Agency Ranking
公开(公告)号：US10156948B2
公开(公告)日：2018-12-18
申请号：US15223377
申请日：2016-07-29
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of liquid crystal display elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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公开(公告)号：US11119594B2
公开(公告)日：2021-09-14
申请号：US16451106
申请日：2019-06-25
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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公开(公告)号：US11531416B2
公开(公告)日：2022-12-20
申请号：US17399216
申请日：2021-08-11
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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公开(公告)号：US10133106B2
公开(公告)日：2018-11-20
申请号：US14935613
申请日：2015-11-09
Applicant: Japan Display Inc.
Inventor： Naosuke Furutani , Atsushi Nakamura , Osamu Ishige , Koji Noguchi , Chihiro Tanaka
IPC: G02F1/1335 , G02F1/1333 , G06F3/044
Abstract: An image quality of a display device is improved. The display device includes: a display unit having a display functional layer; a cover member having a front surface and a back surface positioned on an opposite side of the front surface and covering the display unit; and a polarizing plate having a front surface so as to oppose the back surface of the cover member through a space spreading along the back surface of the cover member. Also, a reflection suppressing layer reducing reflected light which is visually recognized on the display surface side is formed on either one of the back surface of the cover member and the front surface of the polarizing plate.
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公开(公告)号：US10386981B2
公开(公告)日：2019-08-20
申请号：US16174475
申请日：2018-10-30
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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