JP5679366B2 - 圧力検出表示装置および電子機器 - Google Patents
圧力検出表示装置および電子機器 Download PDFInfo
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- JP5679366B2 JP5679366B2 JP2013118300A JP2013118300A JP5679366B2 JP 5679366 B2 JP5679366 B2 JP 5679366B2 JP 2013118300 A JP2013118300 A JP 2013118300A JP 2013118300 A JP2013118300 A JP 2013118300A JP 5679366 B2 JP5679366 B2 JP 5679366B2
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- pressure detection
- piezoelectric layer
- detection display
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- 238000001514 detection method Methods 0.000 title claims description 27
- 239000000463 material Substances 0.000 claims description 13
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 5
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 4
- 239000004626 polylactic acid Substances 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133394—Piezoelectric elements associated with the cells
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
Description
(1)圧力検出表示装置の構造
図1を用いて、本発明の圧力検出表示装置の構造を説明する。図1は圧力検出表示装置の断面図である。
図1示すように、圧力検出装置100は、圧電センサ10と表示装置20とを備えている。圧電センサ10は、表示装置20の上に積層されている。なお、圧電センサ10は、与えられた荷重に応じて電荷を発生させる装置である。圧電センサ10は、圧電層1が上部電極2と下部電極3とに挟まれた構成からなる。表示装置20は、圧電センサ10の表面に表示物を表示する装置である。表示装置20は、表示部材22の上に偏光板21が積層された構成からなる。
再び、図1に示すように、圧電センサ10は、圧電層1と上部電極2と下部電極3とを備えている。
圧電層1は、荷重が与えられると電荷を発生するものである。そのような、圧電層1を構成する材料としては有機圧電材料が挙げられる。有機圧電材料としては、フッ化物重合体又はその共重合体、キラリティーを有する高分子材料などが挙げられる。フッ化物重合体又はその共重合体としては、ポリフッ化ビニリデン、フッ化ビニリデン−テトラフルオロエチレン共重合体、フッ化ビニリデン−トリフルオロエチレン共重合体などが挙げられる。キラリティーを有する高分子材料としては、L型ポリ乳酸や、R型ポリ乳酸などが挙げられる。
上部電極2、下部電極3は、それぞれ平板状でもパターン化されていてもよい。なお、上部電極2、下部電極3は、導電性を有する材料により構成できる。導電性を有する材料としては、インジウム−スズ酸化物(Indium−Tin−Oxide、ITO)、スズ−亜鉛酸化物(Tin−Zinc−Oxide、TZO)などのような透明導電酸化物、ポリエチレンジオキシチオフェン(Polyethylenedioxythiophene、PEDOT)などの導電性高分子、などを用いることができる。この場合、上記の電極は、蒸着やスクリーン印刷などを用いて形成できる。
その結果、表示部材22から出射される光は、自然光に近い状態に変換されて圧電層1から出射される。その結果、偏光サングラスをかけて表示部材を観察しても、色味の変化を伴わないで表示部材22を観察できる。
圧電層11は、活性な部分と不活性な部分を有するようにパターニングされていてもよい。
活性圧電部1aは、圧電センサ10に荷重が与えられたときに電荷が発生する部分である。反対に不活性圧電部1bは、荷重が与えられても電荷が発生しない部分である。
上記では、上部電極2と下部電極3に圧電層1が挟まれた構成について説明してきたが、上部電極2と下部電極3の間に基準電極4が設けられていてもよい。
図4に示すように、圧電センサ10の上にタッチパネル30を積層してもよい。上記のように構成することで、与えられた荷重の位置と量を検出してもよい。
圧電センサ10の上にタッチパネル30を積層することにより、与えられた荷重の位置を検出できる。なお、タッチパネルの中でも、静電容量型タッチパネルを用いることが特に好ましい。
1a:活性圧電部
1b:不活性圧電部
2:上部電極
3:下部電極
4:基準電極
5:第1圧電層
6:第2圧電層
10:圧電センサ
20:表示装置
21:偏光板
22:表示部材
30:タッチパネル
100:圧力検出表示装置
Claims (9)
- 上部電極と下部電極に圧電層が挟まれた圧電センサと、
前記圧電センサの下部電極側に配置される偏光板と前記偏光板の下側に配置される表示部材を有する表示装置と、を備えた圧力検出表示装置であって、
前記圧電層が位相差板からなり、
前記圧電層の遅延軸が前記偏光板の吸収軸に対して20°〜70°の角度を形成するように前記圧電センサと前記偏光板が配置された圧力検出表示装置。 - 前記圧電層のリタデーション値が、可視光の1/4波長である請求項1の圧力検出表示装置。
- 前記圧電層のリタデーション値が、800nm〜30000nmである請求項1の圧力検出表示装置。
- 前記上部電極が、酸化インジウム錫、またはポリエチルジオキソチオフェンを含む請求項1〜3のいずれかの圧力検出表示装置。
- 前記下部電極が、酸化インジウム錫、またはポリエチルジオキソチオフェンを含む請求項1〜4のいずれかの圧力検出表示装置。
- 前記圧電層が、有機圧電材料からなる請求項1〜5のいずれかの圧力検出表示装置。
- 前記有機圧電材料が、ポリフッ化ビニリデンまたはポリ乳酸を含む請求項6の圧力検出表示装置。
- 請求項1〜7のいずれかの圧力検出表示装置とタッチパネルを備える電子機器。
- 前記タッチパネルが静電容量型タッチパネルである請求項8の電子機器。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013118300A JP5679366B2 (ja) | 2013-06-04 | 2013-06-04 | 圧力検出表示装置および電子機器 |
KR1020157034103A KR101631116B1 (ko) | 2013-06-04 | 2014-05-21 | 압력 검출 표시 장치 및 전자 기기 |
US14/895,888 US9836171B2 (en) | 2013-06-04 | 2014-05-21 | Pressure detection and display apparatus and electronic device |
CN201480031751.8A CN105264468B (zh) | 2013-06-04 | 2014-05-21 | 压力检测显示装置和电子设备 |
PCT/JP2014/063508 WO2014196365A1 (ja) | 2013-06-04 | 2014-05-21 | 圧力検出表示装置および電子機器 |
Applications Claiming Priority (1)
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JP2013118300A JP5679366B2 (ja) | 2013-06-04 | 2013-06-04 | 圧力検出表示装置および電子機器 |
Publications (2)
Publication Number | Publication Date |
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JP2014235136A JP2014235136A (ja) | 2014-12-15 |
JP5679366B2 true JP5679366B2 (ja) | 2015-03-04 |
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JP2013118300A Expired - Fee Related JP5679366B2 (ja) | 2013-06-04 | 2013-06-04 | 圧力検出表示装置および電子機器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9836171B2 (ja) |
JP (1) | JP5679366B2 (ja) |
KR (1) | KR101631116B1 (ja) |
CN (1) | CN105264468B (ja) |
WO (1) | WO2014196365A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013165601A1 (en) | 2012-05-03 | 2013-11-07 | Yknots Industries Llc | Moment compensated bending beam sensor for load measurement on platform supported by bending beams |
US9983715B2 (en) | 2012-12-17 | 2018-05-29 | Apple Inc. | Force detection in touch devices using piezoelectric sensors |
US9952703B2 (en) | 2013-03-15 | 2018-04-24 | Apple Inc. | Force sensing of inputs through strain analysis |
CN105684177B (zh) * | 2013-10-28 | 2019-05-21 | 苹果公司 | 基于压电的力感测 |
AU2015100011B4 (en) | 2014-01-13 | 2015-07-16 | Apple Inc. | Temperature compensating transparent force sensor |
US9612170B2 (en) | 2015-07-21 | 2017-04-04 | Apple Inc. | Transparent strain sensors in an electronic device |
US10055048B2 (en) | 2015-07-31 | 2018-08-21 | Apple Inc. | Noise adaptive force touch |
US9874965B2 (en) | 2015-09-11 | 2018-01-23 | Apple Inc. | Transparent strain sensors in an electronic device |
US9886118B2 (en) | 2015-09-30 | 2018-02-06 | Apple Inc. | Transparent force sensitive structures in an electronic device |
US10209830B2 (en) | 2016-03-31 | 2019-02-19 | Apple Inc. | Electronic device having direction-dependent strain elements |
US10133418B2 (en) | 2016-09-07 | 2018-11-20 | Apple Inc. | Force sensing in an electronic device using a single layer of strain-sensitive structures |
KR102568386B1 (ko) * | 2016-09-30 | 2023-08-21 | 삼성디스플레이 주식회사 | 터치 센서를 포함하는 표시 장치 |
US10444091B2 (en) | 2017-04-11 | 2019-10-15 | Apple Inc. | Row column architecture for strain sensing |
US10309846B2 (en) | 2017-07-24 | 2019-06-04 | Apple Inc. | Magnetic field cancellation for strain sensors |
CN109920777A (zh) * | 2018-06-22 | 2019-06-21 | 京东方科技集团股份有限公司 | 显示面板及其制造方法、显示装置和控制方法 |
US10782818B2 (en) | 2018-08-29 | 2020-09-22 | Apple Inc. | Load cell array for detection of force input to an electronic device enclosure |
Family Cites Families (9)
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JP2000137217A (ja) * | 1998-11-02 | 2000-05-16 | Hitachi Ltd | 液晶パネルおよび液晶表示装置 |
JP2004125571A (ja) | 2002-10-01 | 2004-04-22 | National Institute Of Advanced Industrial & Technology | 透明圧電センサおよびそれを備えた入力装置 |
US8259259B2 (en) * | 2007-04-11 | 2012-09-04 | Fujifilm Corporation | Liquid crystal display device comprising an optically anisotropic film having at least one species of liquid crystal compound which exhibits a nematic phase or a smectic phase |
US20090072670A1 (en) * | 2007-09-13 | 2009-03-19 | Sony Ericsson Mobile Communications Ab | Input device and method for registering user input on an electronic device |
US8748543B2 (en) | 2008-09-29 | 2014-06-10 | Teijin Limited | Polylactic acid film |
JP2010181561A (ja) * | 2009-02-04 | 2010-08-19 | Teijin Ltd | 光学用ポリ乳酸フィルムおよびその製造方法 |
JP2010108490A (ja) * | 2008-10-03 | 2010-05-13 | Daikin Ind Ltd | タッチパネルおよび透明圧電シート |
US20130021544A1 (en) * | 2010-03-29 | 2013-01-24 | Keiichi Fukuyama | Display device, pressure detecting device and method for manufacturing display device |
WO2013021835A1 (ja) * | 2011-08-11 | 2013-02-14 | 株式会社村田製作所 | タッチパネル |
-
2013
- 2013-06-04 JP JP2013118300A patent/JP5679366B2/ja not_active Expired - Fee Related
-
2014
- 2014-05-21 WO PCT/JP2014/063508 patent/WO2014196365A1/ja active Application Filing
- 2014-05-21 CN CN201480031751.8A patent/CN105264468B/zh not_active Expired - Fee Related
- 2014-05-21 KR KR1020157034103A patent/KR101631116B1/ko active IP Right Grant
- 2014-05-21 US US14/895,888 patent/US9836171B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR20150140407A (ko) | 2015-12-15 |
KR101631116B1 (ko) | 2016-06-16 |
US20160132151A1 (en) | 2016-05-12 |
WO2014196365A1 (ja) | 2014-12-11 |
US9836171B2 (en) | 2017-12-05 |
CN105264468A (zh) | 2016-01-20 |
CN105264468B (zh) | 2017-07-28 |
JP2014235136A (ja) | 2014-12-15 |
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