TWI448942B - 觸控面板 - Google Patents
觸控面板 Download PDFInfo
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- TWI448942B TWI448942B TW101131195A TW101131195A TWI448942B TW I448942 B TWI448942 B TW I448942B TW 101131195 A TW101131195 A TW 101131195A TW 101131195 A TW101131195 A TW 101131195A TW I448942 B TWI448942 B TW I448942B
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- 230000003287 optical effect Effects 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 4
- 239000004713 Cyclic olefin copolymer Substances 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims 1
- 229910001936 tantalum oxide Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 66
- 238000010586 diagram Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000003667 anti-reflective effect Effects 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic 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
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Position Input By Displaying (AREA)
- Push-Button Switches (AREA)
Description
本發明係有關一種觸控面板,特別是關於一種具有高附著性光學層的觸控面板。
觸控顯示器係結合感測技術及顯示技術所形成的一種輸入/輸出裝置,普遍使用於電子裝置中,例如可攜式及手持式電子裝置。
電容式觸控面板為一種常用的觸控面板,其利用電容耦合效應以偵測觸碰位置。當手指觸碰電容式觸控面板的表面時,相應位置的電容量會受到改變,因而得以偵測到觸碰位置。
第一A圖及第一B圖分別顯示傳統觸控面板的上視圖及剖面圖。於玻璃基板11下表面的周圍設有黑色矩陣(black matrix,BM)12,並於玻璃基板11及黑色矩陣12的下表面設有觸控感應層13。觸控感應層13包含感應部131及走線(routing)部132,其中,未被黑色矩陣12覆蓋的為感應部131,而走線部132則位於黑色矩陣12的正下方。上述黑色矩陣12或感應部131定義出主動區或可觸控範圍14。然而,由
於黑色矩陣12與玻璃基板11之間的附著力較弱,容易產生黑色矩陣12的脫落。再者,由於觸控感應層13很薄,因此,感應部131的外圍區域15(亦即,介於可觸控範圍14與範圍16之間的區域)會有斷線的情形發生。
鑑於傳統觸控面板的黑色矩陣12會有脫落現象,因此亟需提出一種新穎的觸控面板,用以改善傳統觸控面板的缺點。
鑑於上述,本發明實施例提出一種觸控面板,其使用高附
著性之光學層以改善觸控面板之遮光層的脫落現象,且使用具斜面的遮光層以改善觸控面板的可觸控範圍。
根據本發明實施例,觸控面板包含透明基板、光學層、遮光層及觸控感應層。光學層設於透明基板之下表面的至少一週邊。遮光層設於光學層之至少部分下表面。觸控感應層設於透明基板與遮光層的下方。
11‧‧‧玻璃基板
12‧‧‧黑色矩陣
131‧‧‧感應部
132‧‧‧走線部
13‧‧‧觸控感應層
14‧‧‧主動區
15‧‧‧感應部的外圍區域
16‧‧‧範圍
21‧‧‧透明基板
22‧‧‧光學層
22A‧‧‧光學層
22B‧‧‧第一光學層
22C‧‧‧第二光學層
23‧‧‧遮光層
24A‧‧‧擴大主動區
24B‧‧‧原始主動區
25‧‧‧觸控感應層
251‧‧‧感應部
252‧‧‧走線部
26‧‧‧抗反射層
27‧‧‧覆蓋層
A‧‧‧角度
第一A圖及第一B圖分別顯示傳統觸控面板的上視圖及剖面圖。
第二A圖及第二B圖分別顯示本發明第一實施例之觸控面板的上視圖及剖面圖。
第三圖顯示本發明第二實施例之觸控面板的剖面圖。
第四圖顯示本發明第三實施例之觸控面板的剖面圖。
第二A圖及第二B圖分別顯示本發明第一實施例之觸控面板的上視圖及剖面圖。為便於說明,圖式僅顯示出與本實施例相關的元件。
如第二A/B圖所示,首先提供一透明基板21,其材質可為高透光率的絕緣材料,例如玻璃、聚碳酸酯(Polycarbonate,PC)、聚對苯二甲酸乙二酯(Polyethylene terephthalate,PET)、聚甲基丙烯酸甲酯(Polymethyl methacrylate,PMMA)或環烯烴共聚合物(Cyclic olefin copolymer,COC)。
透明基板21之下表面的至少一週邊設有光學層22。本實施例之光學層22透明且具高折射率,例如大於1.5。本實施例之光學層22的材質可為透光有機材料,例如是光阻;或者為透光無機材料,例如是矽氧化物(例如二氧化矽)或金屬氧化物。形成光學層22的方法有多種,例如物理氣相沈積、化學氣相沈積、塗佈(coating)、印刷或旋塗(spinning)等製程。在本說明書中,方位上係指向觸控面板的觸控面,而方位下則為相反於觸控面的方向。
光學層22的下表面設有遮光層23。本實施例的遮光層23可以為一般的黑色矩陣(black matrix,BM),但不限定於此,只要是具有遮光功能的導電或非導電材質皆可。根據本實施例的特徵之一,遮光層23對光學層22的附著性大於遮光層23對透明基板21的附著性,因此遮光層23不容易脫落。
根據本實施例的另一特徵,遮光層23具有傾斜的側面
(簡稱斜面)。在一實施例中,遮光層23的斜面與透明基板21的底面之間具有一角度A,其值小於50度。本說明書後面篇幅將會說明,遮光層23的斜面將使得本實施例之觸控面板的觸控範圍從原始主動區24B增大為擴大主動區24A。
如第二B圖所示,遮光層23及透明基板21的下表面設有觸控感應層25,其材質可為透明導電材料(例如氧化銦錫(ITO)或氧化銦鋅(IZO)),但不限定於此。在第二B圖所示的示意圖中,僅顯示一層的觸控感應層25,然而其可包含多個子層,該些子層可使用單邊單層、單邊多層、或雙邊多層等架構。觸控感應層25包含感應部251及走線(routing)部252。其中,感應部251與走線部252的界線位於遮光層23之非斜面的下方。藉此,感應部251定義出本實施例之擴大主動區或擴大可觸控範圍24A。相較於傳統的觸控面板(例如第一A/B圖所示)之黑色矩陣12具有陡峭的側面,本實施例的遮光層23因具有斜面,因此在該斜面附近(亦即擴大主動區24A與原始主動區24B之間)的區域,感應部251不會有斷線情形的發生,且增大了觸控面板的可觸控範圍。
如第二A/B圖所示,本實施例之觸控面板還可包含一抗反射層26,設於透明基板21的上表面,用以降低光線的反射,且可防止透明基板21受到污染。此外,本實施例之觸控面板還可包含覆蓋(overcoating)層27,設於觸控感應層25的下表面,用以保護觸控感應層25。上述之觸控面板可單獨使用於電子裝置中,也可進一步與顯示面板(未顯示)結合,以形成觸控顯示器。
第三圖顯示本發明第二實施例之觸控面板的剖面圖,其上視圖類似於第二A圖所示,因而省略。本實施例類似於第一實施例(第二B圖),不同的地方在於,本實施例的光學層22A全面覆蓋於透明基板21之下表面,而觸控感應層25則覆蓋於遮光層23及光學層22A的下表面。相較於第一實施例(第二A/B圖),本實施例具有高折射率的光學層22A直接或間接而全面設於觸控感應層25的上方,使得無論是位於觸控感應層25之觸控電極或者是相鄰觸控電極之間的間隙,由上方俯視觸控面板時所感知的反射光線幾乎沒有差異(亦即,反射率實質相同),因而得以提升觸控面板的光學特性。
第四圖顯示本發明第三實施例之觸控面板的剖面圖,其上視圖類似於第二A圖所示,因而省略。本實施例類似於第二實施例(第三圖),不同的地方在於,本實施例除了於透明基板21與遮光層23之間設有第一光學層22B,且於遮光層23及第一光學層22B的下表面設有第二光學層22C。
以上所述僅為本發明之較佳實施例而已,並非用以限定本發明之申請專利範圍;凡其它未脫離發明所揭示之精神下所完成之等效改變或修飾,均應包含在下述之申請專利範圍內。
21‧‧‧透明基板
22‧‧‧光學層
23‧‧‧遮光層
25‧‧‧觸控感應層
251‧‧‧感應部
252‧‧‧走線部
26‧‧‧抗反射層
27‧‧‧覆蓋層
A‧‧‧角度
Claims (13)
- 一種觸控面板,包含:一透明基板;一光學層,設於該透明基板之下表面的至少一週邊;一遮光層,設於該光學層之至少部分下表面,該遮光層具有斜面;及一觸控感應層,設於該透明基板與該遮光層的下方。
- 如申請專利範圍第1項所述的觸控面板,其中該遮光層對該光學層的附著性大於該遮光層對該透明基板的附著性。
- 如申請專利範圍第1項所述的觸控面板,其中該透明基板的材質為透光的絕緣材料,該絕緣材料為玻璃、聚碳酸酯(PC)、聚對苯二甲酸乙二酯(PET)、聚甲基丙烯酸甲酯(PMMA)或環烯烴共聚合物(COC)。
- 如申請專利範圍第1項所述的觸控面板,其中該遮光層包含黑色矩陣(BM)。
- 如申請專利範圍第1項所述的觸控面板,其中該遮光層的斜面與該透明基板的底面之間具有一角度,其值小於50度。
- 如申請專利範圍第1項所述的觸控面板,其中該光學層的折射率大於1.5。
- 如申請專利範圍第1項所述的觸控面板,其中該光學層的材質為矽氧化物。
- 如申請專利範圍第1項所述的觸控面板,其中該光學層全面設於該透明基板的下表面。
- 如申請專利範圍第8項所述的觸控面板,更包含第二光學層,設於該光學層與該遮光層的下表面。
- 如申請專利範圍第1項所述的觸控面板,其中該觸控感應層的材質為透明導電材料。
- 如申請專利範圍第1項所述的觸控面板,其中該觸控感應層包含一感應部及一走線部,其中,該感應部與該走線部的界線位於該遮光層之非斜面的下方。
- 如申請專利範圍第1項所述的觸控面板,更包含一抗反射層,設於該透明基板的上方。
- 如申請專利範圍第1項所述的觸控面板,更包含一覆蓋層,設於該觸控感應層的下表面。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW101131195A TWI448942B (zh) | 2012-08-28 | 2012-08-28 | 觸控面板 |
CN201210356506.7A CN103677370A (zh) | 2012-08-28 | 2012-09-21 | 触控面板 |
CN2012204876251U CN202838256U (zh) | 2012-08-28 | 2012-09-21 | 触控面板 |
JP2012006381U JP3180689U (ja) | 2012-08-28 | 2012-10-19 | タッチパネル |
US13/677,880 US9442603B2 (en) | 2012-08-28 | 2012-11-15 | Touch panel |
DE202012104639U DE202012104639U1 (de) | 2012-08-28 | 2012-11-29 | Berührungskonsole |
KR2020130005481U KR200476351Y1 (ko) | 2012-08-28 | 2013-07-04 | 터치 패널 |
Applications Claiming Priority (1)
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TW101131195A TWI448942B (zh) | 2012-08-28 | 2012-08-28 | 觸控面板 |
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TW201409304A TW201409304A (zh) | 2014-03-01 |
TWI448942B true TWI448942B (zh) | 2014-08-11 |
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TW101131195A TWI448942B (zh) | 2012-08-28 | 2012-08-28 | 觸控面板 |
Country Status (6)
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US (1) | US9442603B2 (zh) |
JP (1) | JP3180689U (zh) |
KR (1) | KR200476351Y1 (zh) |
CN (2) | CN202838256U (zh) |
DE (1) | DE202012104639U1 (zh) |
TW (1) | TWI448942B (zh) |
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TWI490749B (zh) * | 2013-06-24 | 2015-07-01 | Buwon Prec Sciences Co Ltd | 觸控面板 |
CN104635970B (zh) * | 2013-11-14 | 2019-02-05 | 华为终端(东莞)有限公司 | 一种电子设备、电子设备的制作方法及装置 |
JP6407249B2 (ja) * | 2014-03-07 | 2018-10-17 | 富士フイルム株式会社 | 加飾材付き基材およびその製造方法、タッチパネル、ならびに情報表示装置 |
TWI549027B (zh) * | 2014-04-22 | 2016-09-11 | 群創光電股份有限公司 | 觸控面板及觸控顯示裝置 |
CN104461152A (zh) * | 2014-12-23 | 2015-03-25 | 昆山国显光电有限公司 | 触控显示面板及触控显示装置 |
CN104834422B (zh) * | 2015-04-23 | 2018-02-06 | 业成光电(深圳)有限公司 | 触控模组及具有该触控模组的触控显示装置 |
CN104765505B (zh) * | 2015-05-04 | 2018-11-09 | 合肥鑫晟光电科技有限公司 | 一种触控显示面板、制造方法和显示装置 |
CN107340903B (zh) * | 2016-04-29 | 2023-07-25 | 宸美(厦门)光电有限公司 | 触控显示设备 |
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- 2012-09-21 CN CN201210356506.7A patent/CN103677370A/zh active Pending
- 2012-10-19 JP JP2012006381U patent/JP3180689U/ja not_active Expired - Fee Related
- 2012-11-15 US US13/677,880 patent/US9442603B2/en active Active
- 2012-11-29 DE DE202012104639U patent/DE202012104639U1/de not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
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CN103677370A (zh) | 2014-03-26 |
JP3180689U (ja) | 2012-12-27 |
KR20140001468U (ko) | 2014-03-10 |
DE202012104639U1 (de) | 2013-01-07 |
TW201409304A (zh) | 2014-03-01 |
US9442603B2 (en) | 2016-09-13 |
CN202838256U (zh) | 2013-03-27 |
US20140062959A1 (en) | 2014-03-06 |
KR200476351Y1 (ko) | 2015-02-17 |
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