JP7454912B2 - センサ電極からの電磁放射の緩和 - Google Patents
センサ電極からの電磁放射の緩和 Download PDFInfo
- Publication number
- JP7454912B2 JP7454912B2 JP2019038087A JP2019038087A JP7454912B2 JP 7454912 B2 JP7454912 B2 JP 7454912B2 JP 2019038087 A JP2019038087 A JP 2019038087A JP 2019038087 A JP2019038087 A JP 2019038087A JP 7454912 B2 JP7454912 B2 JP 7454912B2
- Authority
- JP
- Japan
- Prior art keywords
- sensor electrodes
- input device
- electrodes
- sensor
- processing system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005670 electromagnetic radiation Effects 0.000 title claims description 30
- 230000000116 mitigating effect Effects 0.000 title description 4
- 238000001514 detection method Methods 0.000 claims description 56
- 238000012545 processing Methods 0.000 claims description 52
- 239000011159 matrix material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/181—Enclosures
- G06F1/182—Enclosures with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Position Input By Displaying (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Electrophonic Musical Instruments (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
210 処理システム
221~229、231~236 センサ電極
245 駆動回路
255 検出回路
271 アナログフロントエンドA
272 アナログフロントエンドB
273 アナログフロントエンドC
297 経路回路
298 接地経路
299 導電経路
Claims (8)
- センサ電極のマトリクスのうちの少なくとも一部のセンサ電極を検出信号で変調するように構成された第1の回路と、
前記センサ電極のマトリクスからの電磁放射を、前記センサ電極のマトリクスを少なくとも部分的に取り囲む導電経路を前記検出信号の反転バージョンで変調することによって緩和するように構成された第2の回路と、を含む処理システム。 - 前記検出信号と同じ形状と位相を有するガード信号が、表示画面のゲートラインに印加され、
前記導電経路を前記反転バージョンで変調することにより、前記ゲートラインからの電磁放射が緩和される、請求項1に記載の処理システム。 - 前記導電経路と前記センサ電極のマトリクスが、接地経路によって分離された、請求項2に記載の処理システム。
- 前記第2の回路が、更に、
前記導電経路の抵抗を決定し、
前記抵抗に基づいて、前記センサ電極のマトリクスを備える入力装置と関連した温度を決定することと、
前記抵抗に基づいて、ユーザによって前記入力装置に加えられる屈曲力を決定することとからなる群から選択された少なくとも1つを行うように構成された、請求項2に記載の処理システム。 - センサ電極のマトリクスの少なくとも一部のセンサ電極を検出信号で変調するステップと、
表示画面と関連したゲートラインにガード信号を印加するステップと、
導電経路を前記ガード信号の反転バージョンで変調することによって、前記センサ電極のマトリクスと前記ゲートラインからの電磁放射を低減するステップとを含み、
前記導電経路が、前記センサ電極のマトリクスを少なくとも部分的に取り囲む方法。 - 前記導電経路と前記センサ電極のマトリクスが、接地経路によって分離された、請求項5に記載の方法。
- センサ電極のマトリクスと、
処理システムであって、
前記センサ電極のマトリクスの少なくとも一部のセンサ電極を検出信号で変調し、
前記センサ電極のマトリクスからの電磁放射を、前記センサ電極のマトリクスを少なくとも部分的に取り囲む導電経路を前記検出信号の反転バージョンで変調することによって緩和するように構成された処理システムと、を含む、入力装置。 - 表示画面を動作させるゲートラインを含み、
前記処理システムが、更に、前記検出信号と同じ形状と位相を有するガード信号を前記ゲートラインに印加するように構成され、
前記導電経路を前記ガード信号の前記反転バージョンで変調することによって、前記ガード信号を前記ゲートラインに印加することにより生じる電磁放射が緩和される、請求項7に記載の入力装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023194861A JP2024016258A (ja) | 2018-03-09 | 2023-11-16 | センサ電極からの電磁放射の緩和 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/917,457 US10761659B2 (en) | 2018-03-09 | 2018-03-09 | Mitigating electromagnetic emissions from sensor electrodes |
US15/917,457 | 2018-03-09 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023194861A Division JP2024016258A (ja) | 2018-03-09 | 2023-11-16 | センサ電極からの電磁放射の緩和 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019160309A JP2019160309A (ja) | 2019-09-19 |
JP7454912B2 true JP7454912B2 (ja) | 2024-03-25 |
Family
ID=67843893
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019038087A Active JP7454912B2 (ja) | 2018-03-09 | 2019-03-01 | センサ電極からの電磁放射の緩和 |
JP2023194861A Pending JP2024016258A (ja) | 2018-03-09 | 2023-11-16 | センサ電極からの電磁放射の緩和 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023194861A Pending JP2024016258A (ja) | 2018-03-09 | 2023-11-16 | センサ電極からの電磁放射の緩和 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10761659B2 (ja) |
JP (2) | JP7454912B2 (ja) |
TW (1) | TWI805694B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11029349B2 (en) * | 2016-12-22 | 2021-06-08 | Synaptics Incorporated | Capacitive sensing active electromagnetic emission cancellation |
CN113010049A (zh) * | 2019-12-19 | 2021-06-22 | 联咏科技股份有限公司 | 具有噪声消除的模拟前端电路以及触摸显示设备 |
US11320935B1 (en) * | 2020-11-25 | 2022-05-03 | Idex Biometrics Asa | Touch sensors with multi-state electrodes |
TWI832649B (zh) * | 2022-12-30 | 2024-02-11 | 宏碁股份有限公司 | 自我校正之接觸感測裝置及配置此接觸感測裝置的電子裝置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120013563A1 (en) | 2010-07-13 | 2012-01-19 | Shih-Tzung Chou | Touch input device |
US20130076675A1 (en) | 2011-09-27 | 2013-03-28 | Lg Display Co., Ltd. | Touch screen driver and method for driving the same |
JP2013171369A (ja) | 2012-02-20 | 2013-09-02 | Panasonic Liquid Crystal Display Co Ltd | エンベディッド型タッチスクリーン |
US20140226083A1 (en) | 2013-02-13 | 2014-08-14 | Synaptics Incorporated | Guarding and shielding routing traces in proximity sensors |
JP2015121958A (ja) | 2013-12-24 | 2015-07-02 | アルプス電気株式会社 | 入力装置 |
CN205334414U (zh) | 2015-12-03 | 2016-06-22 | 深圳磨石科技有限公司 | 触摸驱动电路 |
JP2016535882A (ja) | 2013-10-02 | 2016-11-17 | シナプティクス インコーポレイテッド | 静電容量感知デバイスのための多重センサタッチ統合表示ドライバ構成 |
JP2018018156A (ja) | 2016-07-25 | 2018-02-01 | 株式会社ジャパンディスプレイ | 表示装置及びその駆動方法 |
WO2018034159A1 (ja) | 2016-08-15 | 2018-02-22 | ソニー株式会社 | センサ、入力装置および電子機器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10168825B2 (en) * | 2014-01-03 | 2019-01-01 | 3M Innovative Properties Company | Capacitive touch systems and methods using differential signal techniques |
US9703430B2 (en) * | 2014-06-30 | 2017-07-11 | Synaptics Incorporated | Driving sensor electrodes for proximity sensing |
-
2018
- 2018-03-09 US US15/917,457 patent/US10761659B2/en active Active
-
2019
- 2019-02-19 TW TW108105479A patent/TWI805694B/zh active
- 2019-03-01 JP JP2019038087A patent/JP7454912B2/ja active Active
-
2023
- 2023-11-16 JP JP2023194861A patent/JP2024016258A/ja active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120013563A1 (en) | 2010-07-13 | 2012-01-19 | Shih-Tzung Chou | Touch input device |
US20130076675A1 (en) | 2011-09-27 | 2013-03-28 | Lg Display Co., Ltd. | Touch screen driver and method for driving the same |
JP2013171369A (ja) | 2012-02-20 | 2013-09-02 | Panasonic Liquid Crystal Display Co Ltd | エンベディッド型タッチスクリーン |
US20140226083A1 (en) | 2013-02-13 | 2014-08-14 | Synaptics Incorporated | Guarding and shielding routing traces in proximity sensors |
JP2016535882A (ja) | 2013-10-02 | 2016-11-17 | シナプティクス インコーポレイテッド | 静電容量感知デバイスのための多重センサタッチ統合表示ドライバ構成 |
JP2015121958A (ja) | 2013-12-24 | 2015-07-02 | アルプス電気株式会社 | 入力装置 |
CN205334414U (zh) | 2015-12-03 | 2016-06-22 | 深圳磨石科技有限公司 | 触摸驱动电路 |
JP2018018156A (ja) | 2016-07-25 | 2018-02-01 | 株式会社ジャパンディスプレイ | 表示装置及びその駆動方法 |
WO2018034159A1 (ja) | 2016-08-15 | 2018-02-22 | ソニー株式会社 | センサ、入力装置および電子機器 |
Also Published As
Publication number | Publication date |
---|---|
TWI805694B (zh) | 2023-06-21 |
US20190278396A1 (en) | 2019-09-12 |
JP2024016258A (ja) | 2024-02-06 |
US10761659B2 (en) | 2020-09-01 |
JP2019160309A (ja) | 2019-09-19 |
TW201945913A (zh) | 2019-12-01 |
CN110244882A (zh) | 2019-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7454912B2 (ja) | センサ電極からの電磁放射の緩和 | |
EP2987059B1 (en) | Disambiguation of touch input events on a touch sensor panel | |
CN107077260B (zh) | 触摸控制器和用于触摸传感器面板的方法 | |
US10156935B2 (en) | Touch screen controller, touch sensing device, and touch sensing method | |
US10503320B2 (en) | Active feedforward interference cancellation techniques for sensor analog front-end | |
US10061437B2 (en) | Active canceling of display noise in simultaneous display and touch sensing using an impulse response | |
US11460953B2 (en) | Noise suppression circuit | |
TW201802660A (zh) | 歸一化電容性感測量測以降低低接地體及雜訊的影響 | |
US10540042B2 (en) | Impedance ratio-based current conveyor | |
US10191584B2 (en) | Reducing connections from a sensing module | |
US10282021B2 (en) | Input object based increase in ground mass state | |
CN110244882B (zh) | 处理系统、处理方法、与处理系统相关的方法及输入设备 | |
US9436337B2 (en) | Switched capacitance techniques for input sensing | |
US11106317B1 (en) | Common mode noise suppression with restoration of common mode signal | |
US11868555B2 (en) | Low latency input object detection under low ground mass condition | |
US11914820B2 (en) | Distributed analog display noise suppression circuit | |
AU2015202077A1 (en) | Split sense lines for negative pixel compensation | |
TW202349190A (zh) | 分散式類比顯示雜訊抑制電路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20190823 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220222 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230131 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230222 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230516 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230823 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231116 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240214 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240312 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7454912 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |