TWI596401B - Method and apparatus for manufacturing an optical display device - Google Patents
Method and apparatus for manufacturing an optical display device Download PDFInfo
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- TWI596401B TWI596401B TW105104755A TW105104755A TWI596401B TW I596401 B TWI596401 B TW I596401B TW 105104755 A TW105104755 A TW 105104755A TW 105104755 A TW105104755 A TW 105104755A TW I596401 B TWI596401 B TW I596401B
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- 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
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Elimination Of Static Electricity (AREA)
Description
本發明，係有關於連續性地製造光學性顯示裝置之技術，更具體而言，係有關於對起因於在從構成帶狀光學薄膜層積體之載體薄膜來將光學薄膜薄片剝離時的剝離帶電所導致之光學性顯示裝置之帶電作防止的技術。 The present invention relates to a technique for continuously producing an optical display device, and more particularly to peeling off when an optical film sheet is peeled off from a carrier film constituting a strip-shaped optical film laminate. A technique for preventing electrification of an optical display device caused by charging.
近年來，在光學性顯示裝置之製造現場，係逐漸採用有卷至面板(RTP)方式之製造裝置及方法。在RTP方式中，通常，係如同下述一般地而製造光學性顯示裝置。首先，係從卷而送出特定寬幅之帶狀光學薄膜層積體。帶狀光學薄膜層積體，係包含有載體薄膜、和被形成於該載體薄膜之其中一面上之黏著層、和經由該黏著層而被支持於載體薄膜上之光學薄膜，而構成之。光學薄膜，係可為單層，亦可為複數層。在被送出的帶狀光學薄膜層積體處，係藉由於寬幅方向上被連續性地劃入有切入線，而在相鄰接之切入線之間被形成有光學薄膜薄片。光學薄膜薄片，係被從載體薄膜而依序剝離，並被連續性地貼附在面板構件上。 In recent years, at the manufacturing site of an optical display device, a roll-to-panel (RTP) type manufacturing apparatus and method have been gradually adopted. In the RTP method, generally, an optical display device is manufactured as follows. First, a specific wide strip-shaped optical film laminate is delivered from a roll. The strip-shaped optical film laminate is composed of a carrier film, an adhesive layer formed on one surface of the carrier film, and an optical film supported on the carrier film via the adhesive layer. The optical film may be a single layer or a plurality of layers. In the strip-shaped optical film laminate to be fed, an optical film sheet is formed between the adjacent cut-in lines by continuously cutting the cut-in line in the width direction. The optical film sheet is sequentially peeled off from the carrier film and continuously attached to the panel member.
在此種RTP方式中，帶狀光學薄膜層積體，係在被劃入了切入線之後，被朝向身為光學薄膜薄片與面板構件被作貼合的位置之貼合位置作搬送。被連續性地支持於帶狀光學薄膜層積體之載體薄膜上的光學薄膜薄片，係藉由被配置在貼合位置之近旁處的剝離手段，而與黏著層一同地被從載體薄膜剝離。被剝離的光學薄膜薄片，係被送至貼合位置處。此時，光學薄膜薄片，係一面藉由剝離手段而被逐漸從載體薄膜剝離，一面被作搬送，而使前端部逐漸接近貼合位置。到達了貼合位置處的光學薄膜薄片之前端部，係藉由具備有上下一對之貼合輥的貼合手段，而與被搬送至貼合位置處之面板構件的前端部作貼合。之後，光學薄膜薄片，係一面使剩餘之部分被從載體薄膜剝離，一面朝向貼合位置而被作搬送，並逐漸被與面板構件作貼合。如此這般，在RTP方式中，光學薄膜薄片被從載體薄膜剝離之位置與貼合位置之間之距離係為短，直到被剝離的光學薄膜薄片被貼合於面板構件處為止所需的時間亦為極短。 In the RTP method, the strip-shaped optical film laminate is conveyed toward the bonding position where the optical film sheet and the panel member are bonded to each other after being cut into the incision line. The optical film sheet continuously supported on the carrier film of the strip-shaped optical film laminate is peeled off from the carrier film together with the adhesive layer by a peeling means disposed in the vicinity of the bonding position. The peeled optical film sheet is sent to the bonding position. At this time, the optical film sheet is gradually peeled off from the carrier film by the peeling means, and is conveyed while gradually bringing the tip end portion closer to the bonding position. The front end portion of the optical film sheet that has reached the bonding position is bonded to the front end portion of the panel member that is conveyed to the bonding position by a bonding means including a pair of upper and lower bonding rollers. Thereafter, the optical film sheet is conveyed toward the bonding position while being peeled off from the carrier film, and is gradually bonded to the panel member. In this manner, in the RTP method, the distance between the position where the optical film sheet is peeled off from the carrier film and the bonding position is short until the time required for the peeled optical film sheet to be attached to the panel member It is also extremely short.
另外，帶電於光學性顯示裝置中之靜電，係會有導致內藏之電子零件被破壞的危險性，此事係為周知。作為在光學性顯示裝置中帶電有靜電的原因之其中一者，可以推測到係存在有當光學薄膜薄片被從載體薄膜剝離時所發生的光學薄膜薄片之剝離帶電。若是將發生了剝離帶電之光學薄膜薄片直接貼合在面板構件上，則面板構件會帶電，面板構件係會有發生靜電破壞的可能性。又， 當面板構件係身為液晶面板的情況時，起因於光學薄膜薄片之靜電所發生的液晶層之配向紊亂，會發生漏光，起因於此漏光，也會有導致成為無法進行光學性顯示裝置的透射檢查之虞。故而，在光學性顯示裝置之連續製造裝置中，對於光學薄膜薄片之剝離帶電作抑制一事，係極為重要。 Further, the static electricity charged in the optical display device is likely to cause damage to the built-in electronic components, which is well known. As one of the causes of electrostatic charging in the optical display device, it is presumed that there is a peeling electrification of the optical film sheet which occurs when the optical film sheet is peeled off from the carrier film. When the optical film sheet on which the peeling electrification occurs is directly bonded to the panel member, the panel member is charged, and the panel member may be electrostatically destroyed. also, When the panel member is attached to the liquid crystal panel, the alignment of the liquid crystal layer caused by the static electricity of the optical film sheet is disordered, and light leakage occurs, which may cause transmission of the optical display device due to light leakage. After inspection. Therefore, in the continuous manufacturing apparatus of the optical display device, it is extremely important to suppress the peeling electrification of the optical film sheet.
作為對於被貼合在面板構件上之光學薄膜薄片的剝離帶電作抑制之技術，例如，係在專利文獻1(日本特開平11-157013號公報)或專利文獻2(日本特許第4355215號公報)中有所揭示。此些之技術，係為在光學薄膜層積體或者是構成光學薄膜層積體之各個的載體薄膜、光學薄膜或光學薄膜薄片處設置防帶電層、導電層或導電黏著層之技術。又，在專利文獻3(日本特開2012-224041號公報)中，係揭示有一種對於剝離手段之帶電列和載體薄膜之帶電列之間的關係作考慮並對於構成剝離手段之材質作選擇的剝離帶電抑制技術。 For example, the technique of suppressing the peeling electrification of the optical film sheet to be bonded to the panel member is disclosed in, for example, Patent Document 1 (JP-A-H11-157013) or Patent Document 2 (Japanese Patent No. 4350215). Revealed in the middle. Such techniques are techniques for providing an antistatic layer, a conductive layer or a conductive adhesive layer on an optical film laminate or a carrier film, an optical film or an optical film sheet constituting each of the optical film laminates. Further, in Patent Document 3 (JP-A-2012-224041), it is disclosed that the relationship between the electrification row of the peeling means and the electrification row of the carrier film is considered and the material constituting the peeling means is selected. Stripping charging suppression technology.
作為並不如同此些之技術一般地而對於薄膜之構成或剝離手段之材質作改變地來對於剝離帶電作抑制之技術，例如，係提案有在專利文獻4(日本特開2014-56773號公報)以及專利文獻5(日本特開2013-4274號公報)中所揭示之技術。 As a technique for suppressing the peeling electrification, which is not the same as the technique of the film, or the material of the peeling means, as disclosed in the above-mentioned technique, for example, Patent Document 4 (Japanese Patent Laid-Open Publication No. 2014-56773) The technique disclosed in the patent document 5 (JP-A-2013-4274).
專利文獻4(日本特開2014-56773號公報)，係有關於一種為了對於在光學構件之表面上帶電靜電的情形作抑制，而具備有被配置在光學構件之搬送路徑 上並對於從間隔物所剝離了的光學構件之表面照射軟X光的電離器之裝置。在此技術中，由於從光學構件被剝離起直到被貼合於光學顯示零件上為止的距離係為短，因此就算是對於被剝離了的光學構件之表面照射軟X線，也會有無法充分地將光學構件之靜電作除電的情況。 Patent Document 4 (JP-A-2014-56773) relates to a transport path disposed in an optical member for suppressing charging of static electricity on the surface of an optical member. A device for irradiating a soft X-ray ionizer to the surface of the optical member from which the spacer has been peeled off. In this technique, since the distance from the peeling of the optical member to the attachment to the optical display member is short, even if the surface of the optical member to be peeled off is irradiated with soft X-rays, the X-ray may not be sufficient. The static electricity of the optical member is removed.
又，在專利文獻5(日本特開2013-4274號公報)之背景技術中，係記載有將在從基材薄片而將功能性薄片作剝離時所發生的剝離帶電藉由照射由電離器所產生的離子一事來除去之2個的技術。其中一者，係為在從被與剝離後之功能性薄片作了對向配置的電離器來照射離子並作了一定時間的保持之後，將功能性薄片貼合於對象物上，藉由此來對於功能性薄片之剝離帶電作抑制的技術。但是，此技術，由於剝離面之曝露時間係為長，因此係會有附著異物或者是在接著層處產生傷痕的情形，而有著起因於此些之因素所導致的功能性薄片之品質降低的問題。 In the background art of Patent Document 5 (JP-A-2013-4274), it is described that peeling electrification which occurs when the functional sheet is peeled off from the base sheet is irradiated by the ionizer. The generated ions are used to remove the two techniques. In one of the cases, after the ions are irradiated from the ionizer disposed opposite to the functional sheet after peeling off and held for a certain period of time, the functional sheet is attached to the object, thereby A technique for suppressing stripping electrification of functional sheets. However, in this technique, since the exposure time of the peeling surface is long, there is a case where foreign matter adheres or a flaw is generated at the adhesive layer, and the quality of the functional sheet due to such factors is lowered. problem.
作為在專利文獻5中所記載之其他技術，係為在從剝離場所而遠離的場所處設置電離器，並藉由將離子吹入至剝離區塊與對象物之間，來在緊接於功能性薄片被從基材薄片剝離起直到被貼合於對象物上為止的些許之時間中，對於功能性薄片照射離子之技術。此技術，由於從電離器起直到功能性薄片為止的距離係較為遠離，因此在直到包含有離子之氣流到達功能性薄片處為止的過程中，係會發生離子之擴散或消滅。又，由於照射時間係為短，因此係有著剝離場所之除電效果為弱之虞。 As another technique described in Patent Document 5, an ionizer is provided at a place away from the peeling place, and the ions are blown between the peeling block and the object to be in close proximity to the function. The technique of irradiating ions to a functional sheet during a period of time from the peeling of the base sheet to the attachment of the substrate to the object. In this technique, since the distance from the ionizer to the functional sheet is relatively far away, diffusion or destruction of ions occurs during the process until the gas stream containing ions reaches the functional sheet. Moreover, since the irradiation time is short, the power-removing effect of the peeling place is weak.
專利文獻6(日本特開2011-187464號公報)，係揭示有一種將在剝離薄片上暫時接著有接著薄片之原料卷、和與該原料卷相接之構件，此兩者中之至少其中一者的帶電，藉由帶電除去手段(具體而言，係為電離器)來中和的技術。此技術，係為針對接著薄片起因於被剝離前之原料卷的帶電或者是與剝離前之原料卷相接的構件之帶電而被拉扯至此些之構件處並導致原料卷之張力的變動之產生，而造成無法在對於接著薄片賦予有特定之張力的狀態下來貼附在晶圓上之課題，來作解決者。此技術，係並非為能夠對於如同本申請案一般之防止當光學薄膜薄片被從載體薄膜剝離時所產生的剝離帶電一事作適用的技術，在專利文獻6中，針對用以對起因於剝離帶電而導致面板構件帶電一事作防止的構成，係並未作揭示。 Patent Document 6 (JP-A-2011-187464) discloses a material roll for temporarily attaching a subsequent sheet to a release sheet, and a member for contacting the material roll, at least one of the two. The charging of the person is neutralized by a charging removal means (specifically, an ionizer). This technique is intended to cause the subsequent sheet to be pulled by the charging of the raw material roll before being peeled off or the member which is in contact with the raw material roll before peeling, and to cause the variation of the tension of the raw material roll. The problem is that it cannot be attached to the wafer in a state in which a specific tension is applied to the subsequent sheet. This technique is not intended to be applicable to the prevention of peeling electrification which occurs when the optical film sheet is peeled off from the carrier film as in the present application, and in Patent Document 6, it is intended to be used for charging due to peeling. The composition that causes the panel member to be charged is not disclosed.
另外，在專利文獻4、專利文獻5以及專利文獻6中所揭示之技術，係均為對於已帶電之對象物照射離子而將帶電了的電荷除去之技術。因此，配置將電荷除去之手段的位置，係必須要成為較在對象物處而產生了帶電的位置更為下游側。故而，此些之技術，就算是適用在從載體薄膜和光學薄膜薄片之剝離位置(亦即是，發生光學薄膜薄片之剝離帶電的位置)起直到將光學薄膜薄片貼合於面板構件處為止的時間以及距離為極短的RTP方式之連續製造裝置中，也難以得到充分的除電效果。 Further, the techniques disclosed in Patent Document 4, Patent Document 5, and Patent Document 6 are techniques for removing charged charges by irradiating ions with an object to be charged. Therefore, the position at which the means for removing electric charges is disposed must be on the downstream side of the position at which the charging occurs at the object. Therefore, such techniques are applicable even from the peeling position of the carrier film and the optical film sheet (that is, the position where the peeling of the optical film sheet occurs) until the optical film sheet is attached to the panel member. In a continuous manufacturing apparatus in which the time and distance are extremely short, the RTP method is also difficult to obtain a sufficient power removing effect.
〔專利文獻1〕日本特開平11-157013號公報 [Patent Document 1] Japanese Patent Laid-Open No. Hei 11-157013
〔專利文獻2〕日本專利第4355215號公報 [Patent Document 2] Japanese Patent No. 4355215
〔專利文獻3〕日本特開2012-224041號公報 [Patent Document 3] Japanese Patent Laid-Open Publication No. 2012-224041
〔專利文獻4〕日本特開2014-56773號公報 [Patent Document 4] Japanese Patent Laid-Open Publication No. 2014-56773
〔專利文獻5〕日本特開2013-4274號公報 [Patent Document 5] Japanese Patent Laid-Open Publication No. 2013-4274
〔專利文獻6〕日本特開2011-187464號公報 [Patent Document 6] Japanese Patent Laid-Open Publication No. 2011-187464
本發明，係以提供一種在用以連續製造光學性顯示裝置之裝置以及方法中，對於在從被包含於帶狀光學薄膜層積體中的載體薄膜而將光學薄膜薄片剝離時所產生的光學薄膜薄片之帶電作抑制之手段一事，作為課題。 The present invention provides an optical device which is produced when an optical film sheet is peeled off from a carrier film contained in a strip-shaped optical film laminate in an apparatus and method for continuously manufacturing an optical display device. The problem of the suppression of electrification of the film sheet is a problem.
為了達成上述課題，本發明，係在其中一個態樣中，提供製造光學性顯示裝置之方法。本方法，係包含有：從包含有載體薄膜和被形成於該載體薄膜之其中一面上的黏著層以及經由該黏著層而被連續性地支持於載體薄膜上之複數之光學薄膜薄片的帶狀光學薄膜層積體之載體薄膜，來藉由剝離手段而將光學薄膜薄片與黏著層一同地依序作剝離之工程；和將被剝離了的光學薄膜薄片貼合於面板構件上之工程，並包含有：將與在將光學薄膜薄片 從載體薄膜而剝離時所在光學薄膜薄片處產生的電荷相對應之逆電荷，附加於在被從載體薄膜而剝離之前的光學薄膜薄片處之工程。 In order to achieve the above object, the present invention provides a method of manufacturing an optical display device in one of the aspects. The method comprises: an adhesive layer comprising a carrier film and an adhesive layer formed on one side of the carrier film, and a plurality of optical film sheets continuously supported on the carrier film via the adhesive layer a carrier film of an optical film laminate, in which the optical film sheet is peeled off together with the adhesive layer by a peeling means; and a process of bonding the peeled optical film sheet to the panel member, and Contains: will be with the optical film sheet The reverse charge corresponding to the charge generated at the optical film sheet at the time of peeling from the carrier film is added to the work at the optical film sheet before being peeled off from the carrier film.
將逆電荷附加至光學薄膜薄片之工程，係可藉由將具有逆電荷之離子供給至光學薄膜薄片處來進行之。又，在將逆電荷附加至光學薄膜薄片之工程中，較理想，係涵蓋光學薄膜薄片之全寬幅地來以直線狀而將逆電荷附加至光學薄膜薄片處，較理想，係於正在搬送光學薄膜薄片之期間中，將逆電荷附加至光學薄膜薄片處，較理想，係於較帶狀光學薄膜層積體之在比剝離手段更上游處而最後與剝離手段以外之構件作了接觸的位置更下游側處，將逆電荷附加至光學薄膜薄片處。進而，較理想，係因應於在將光學薄膜薄片貼合於面板構件上之後的光學性顯示裝置之漏光現象以及靜電破壞的檢查結果，來對附加於光學薄膜薄片處之逆電荷的量作調整。 The engineering of attaching a reverse charge to the optical film sheet can be carried out by supplying counter-charged ions to the optical film sheet. Further, in the process of attaching a reverse charge to the optical film sheet, it is preferable to cover the entire width of the optical film sheet to linearly add a reverse charge to the optical film sheet, preferably, it is being transported. During the period of the optical film sheet, a reverse charge is applied to the optical film sheet, preferably in a state in which the strip-shaped optical film laminate is further upstream than the peeling means and finally comes into contact with a member other than the peeling means. At the downstream side of the position, a reverse charge is attached to the optical film sheet. Further, it is preferable to adjust the amount of the reverse charge attached to the optical film sheet in response to the light leakage phenomenon of the optical display device and the inspection result of the electrostatic breakdown after bonding the optical film sheet to the panel member. .
本發明，係在其他態樣中，提供製造光學性顯示裝置之裝置。本裝置，係為從包含有載體薄膜和被形成於該載體薄膜之其中一面上的黏著層以及經由該黏著層而被連續性地支持於載體薄膜上之複數之光學薄膜薄片的帶狀光學薄膜層積體之載體薄膜，來藉由剝離手段而將光學薄膜薄片與黏著層一同地依序作剝離，並將被剝離了的光學薄膜薄片貼合於面板構件，藉由此來製造光學性顯示裝置，該裝置，其特徵為，係具備有：將帶狀光學薄膜層積體朝向面板構件與光學薄膜薄片間之貼合位置作搬送之 薄膜搬送手段；和將面板構件朝向貼合位置作搬送之面板構件搬送手段；和將光學薄膜薄片從載體薄膜而剝離之剝離手段；和將藉由剝離手段所剝離了的光學薄膜薄片與面板構件作貼合之貼合手段；和將與當從載體薄膜而將光學薄膜薄片剝離時所在光學薄膜薄片處產生的電荷相對應之逆電荷，附加於在被從載體薄膜而剝離之前的光學薄膜薄片處之逆電荷附加手段。 The present invention, in other aspects, provides an apparatus for manufacturing an optical display device. The device is a strip-shaped optical film comprising a carrier film and an adhesive layer formed on one side of the carrier film and a plurality of optical film sheets continuously supported on the carrier film via the adhesive layer In the carrier film of the laminate, the optical film sheet is peeled off together with the adhesive layer by a peeling means, and the peeled optical film sheet is bonded to the panel member, thereby producing an optical display. The device is characterized in that the strip-shaped optical film laminate is conveyed toward a bonding position between the panel member and the optical film sheet. a film conveying means; and a panel member conveying means for conveying the panel member toward the bonding position; and a peeling means for peeling the optical film sheet from the carrier film; and the optical film sheet and the panel member which are peeled off by the peeling means a bonding means for bonding; and a reverse charge corresponding to the charge generated at the optical film sheet at the time of peeling off the optical film sheet from the carrier film, in addition to the optical film sheet before being peeled off from the carrier film The reverse charge is added.
若依據本發明，則就算是對於在從載體薄膜而將光學薄膜薄片剝離起直到貼合於面板構件處為止的時間以及距離為極短的RTP方式之連續製造裝置中，也能夠藉由將在剝離時所發生的電荷中和，來防止在貼合後之光學性顯示裝置處的漏光現象以及靜電破壞。 According to the present invention, even in the continuous manufacturing apparatus of the RTP method in which the time and distance from the peeling of the optical film sheet from the carrier film to the panel member are extremely short, it is possible to The charge generated during the peeling is neutralized to prevent light leakage and electrostatic breakdown at the optical display device after bonding.
1‧‧‧帶狀光學薄膜層積體 1‧‧‧Strip optical film laminate
2‧‧‧載體薄膜 2‧‧‧ Carrier film
3‧‧‧黏著層 3‧‧‧Adhesive layer
4‧‧‧帶狀光學薄膜 4‧‧‧Strip optical film
5‧‧‧光學薄膜薄片 5‧‧‧Optical film sheet
6‧‧‧面板構件 6‧‧‧ Panel components
6'‧‧‧被貼合有光學薄膜薄片之面板構件 6'‧‧‧Flap member laminated with optical film sheets
7‧‧‧光學性顯示裝置 7‧‧‧Optical display device
10‧‧‧RTP方式之連續製造裝置 10‧‧‧Continuous manufacturing equipment of RTP mode
20‧‧‧逆電荷附加手段 20‧‧‧Reverse charge attachment
22‧‧‧高電壓產生部 22‧‧‧High Voltage Generation Department
24‧‧‧逆電荷附加部 24‧‧‧Reverse Charge Addition
26‧‧‧配線 26‧‧‧Wiring
28‧‧‧電荷調整部 28‧‧‧Charge Adjustment Department
30‧‧‧切入線形成手段 30‧‧‧cutting line formation means
40‧‧‧薄膜搬送手段 40‧‧‧film transport means
41、42‧‧‧饋送滾輪 41, 42‧‧‧ Feeding wheel
46‧‧‧導引滾輪 46‧‧‧Guide Roller
50‧‧‧貼合手段 50‧‧‧Means of fitting
51、52‧‧‧貼合滾輪 51, 52‧‧‧ fitted roller
60‧‧‧剝離手段 60‧‧‧Dissipation means
61‧‧‧剝離手段之頂部 61‧‧‧Top of the stripping method
70‧‧‧貼合位置 70‧‧‧ Fitted position
80‧‧‧面板構件搬送手段 80‧‧‧ Panel components transport means
90‧‧‧控制手段 90‧‧‧Control means
92‧‧‧資訊處理部 92‧‧‧Information Processing Department
94‧‧‧記憶部 94‧‧‧Memory Department
R1‧‧‧送出卷 R1‧‧‧Send the volume
R2‧‧‧捲取卷 R2‧‧‧Volume Roll
〔圖1〕對於本發明之其中一種實施形態的具備有逆電荷附加手段之光學性顯示裝置之連續製造裝置的全體作展示。 Fig. 1 shows a whole of a continuous manufacturing apparatus including an optical display device having a reverse charge adding means according to an embodiment of the present invention.
〔圖2〕對起因於光學性顯示裝置(液晶面板)之液晶配向紊亂所導致的漏光現象作展示。 [Fig. 2] A light leakage phenomenon caused by disorder of liquid crystal alignment caused by an optical display device (liquid crystal panel) is shown.
〔圖3〕對起因於光學性顯示裝置(液晶面板)之帶電所導致的液晶配向紊亂之發生機制作展示。 [Fig. 3] A production show of a liquid crystal alignment disorder caused by charging of an optical display device (liquid crystal panel) is shown.
〔圖4〕對於將本發明之其中一種實施形態的逆電荷附加手段配置在連續製造裝置中的狀態作展示。 Fig. 4 is a view showing a state in which the reverse charge adding means of one embodiment of the present invention is disposed in a continuous manufacturing apparatus.
圖1，係對於本發明之其中一種實施形態的具備有逆電荷附加手段20之由RTP方式所致的光學性顯示裝置之連續製造裝置10作展示。在裝置10中，於送出卷R1處，係被捲繞有帶狀光學薄膜層積體1。帶狀光學薄膜層積體1，係包含有載體薄膜2、和被形成於該載體薄膜2之其中一面上之黏著層3、和經由該黏著層3而被作支持之光學薄膜4。載體薄膜2，通常，係使用聚對苯二甲酸乙二酯薄膜(PET薄膜)，但是，係並不被限定於此。又，光學薄膜4，係可設為偏光薄膜、防反射薄膜、光學補償薄膜、光擴散薄膜等，但是，係並不被限定於此些。 Fig. 1 shows a continuous manufacturing apparatus 10 of an optical display device by an RTP method including a reverse charge adding means 20 according to an embodiment of the present invention. In the apparatus 10, the strip-shaped optical film laminate 1 is wound around the feed roll R1. The strip-shaped optical film laminate 1 includes a carrier film 2, an adhesive layer 3 formed on one surface of the carrier film 2, and an optical film 4 supported by the adhesive layer 3. The carrier film 2 is usually a polyethylene terephthalate film (PET film), but is not limited thereto. Further, the optical film 4 may be a polarizing film, an antireflection film, an optical compensation film, a light diffusion film, or the like, but is not limited thereto.
在從送出卷R1而被送出的帶狀光學薄膜層積體1處，係藉由切入線形成手段30，來以特定之間隔而連續性地被形成有一直到達載體薄膜2之表面的切入線。被形成了切入線後的帶狀光學薄膜層積體1，係包含有載體薄膜2、和被形成於該載體薄膜2之其中一面上之黏著層3、和經由該黏著層3而被連續性地支持於載體薄膜2上的複數之光學薄膜薄片5。 At the strip-shaped optical film laminate 1 which is fed from the delivery roll R1, the cut-in line forming means 30 is used to continuously form the cut-in line which reaches the surface of the carrier film 2 at a predetermined interval. . The strip-shaped optical film laminate 1 formed with the cut-in line includes the carrier film 2, the adhesive layer 3 formed on one side of the carrier film 2, and the continuity through the adhesive layer 3 A plurality of optical film sheets 5 supported on the carrier film 2 are supported.
裝置10，係具備有薄膜搬送手段40，該薄膜搬送手段40，係具備有將帶狀光學薄膜層積體1從送出卷R1而送出的饋送滾輪41、和將被從帶狀光學薄膜層積 體1所剝離的載體薄膜2送至捲取卷R2處的饋送滾輪42。從送出卷R1而被送出的被劃入有切入線之帶狀光學薄膜層積體1，係藉由饋送滾輪41而被朝向貼合位置70作搬送。在貼合位置70之近旁處，藉由剝離手段60，光學薄膜薄片5係與黏著層3一同地而被依序從載體薄膜2剝離，被剝離了的光學薄膜薄片5，係被送至貼合位置70處。使光學薄膜薄片5被剝離之後的載體薄膜2，係被捲取於捲取卷R2處。 The apparatus 10 is provided with a film transporting means 40 that includes a feed roller 41 that feeds the strip-shaped optical film laminate 1 from the feed roll R1, and is to be laminated from the strip-shaped optical film. The carrier film 2 peeled off from the body 1 is fed to a feed roller 42 at the take-up roll R2. The strip-shaped optical film laminate 1 that has been fed out from the feed roll R1 and that has been cut into the cut-in line is conveyed toward the bonding position 70 by the feed roller 41. In the vicinity of the bonding position 70, the optical film sheet 5 is peeled off from the carrier film 2 in the same manner as the adhesive layer 3 by the peeling means 60, and the peeled optical film sheet 5 is sent to the sticker. The position is 70. The carrier film 2 after the optical film sheet 5 is peeled off is taken up at the take-up roll R2.
被從載體薄膜2而剝離了的光學薄膜薄片5，係起因於剝離而帶電，但是，係能夠藉由在剝離前而經由逆電荷附加手段20所附加的逆電荷，來將帶電了的電荷中和。關於逆電荷附加手段20之詳細，係於後述。另外，在本說明書中，當提到所謂電荷被作了中和一事時，係並不僅是指使在將光學薄膜薄片從載體薄膜而剝離時所發生的積蓄在光學薄膜薄片處之電荷完全成為零的狀態，而亦包含有使電荷量降低至就算是將並未完全成為零而仍殘存有電荷的光學薄膜薄片貼合在面板構件上也不會發生光學性顯示裝置之漏光現象以及靜電破壞的程度之狀態。 The optical film sheet 5 peeled off from the carrier film 2 is charged by peeling, but the charged charge can be charged by the reverse charge added by the counter charge adding means 20 before peeling. with. The details of the reverse charge adding means 20 will be described later. Further, in the present specification, when it is mentioned that the charge is neutralized, it does not mean that the charge accumulated at the optical film sheet which is generated when the optical film sheet is peeled off from the carrier film is completely zero. The state in which the amount of charge is reduced to the extent that the optical film sheet having the charge remaining even if it is not completely zero is attached to the panel member does not cause light leakage of the optical display device and electrostatic breakdown. The state of the degree.
在裝置10中，面板構件6，係對應於光學薄膜薄片5之對於貼合位置70的搬送，來藉由面板構件搬送手段80而被從既定待機位置82來送至貼合位置70處。在貼合位置70處，藉由包含一對之貼合滾輪51、52的貼合手段50，在面板構件6的其中一面上係經由黏著層3而被貼合有使當剝離時所產生了的電荷作了中和之光 學薄膜薄片5，而形成被貼合有光學薄膜薄片之面板構件6'。在圖1中雖並未作展示，但是，係因應於需要，而在面板構件6'上貼合其他的光學薄膜薄片，而製造出光學性顯示裝置7。在裝置10中之各手段、機構以及裝置的動作，係藉由具備有資訊處理部92以及記憶部94之控制手段90而被作控制。 In the apparatus 10, the panel member 6 is conveyed from the predetermined standby position 82 to the bonding position 70 by the panel member conveying means 80 in accordance with the conveyance of the optical film sheet 5 to the bonding position 70. At the bonding position 70, the bonding means 50 including the pair of bonding rollers 51 and 52 is attached to one surface of the panel member 6 via the adhesive layer 3 so as to be formed when peeling off. The charge of neutralization The film sheet 5 is formed to form a panel member 6' to which an optical film sheet is attached. Although not shown in Fig. 1, the optical display device 7 is manufactured by attaching another optical film sheet to the panel member 6' as needed. The operations of the means, mechanisms, and devices in the device 10 are controlled by the control means 90 including the information processing unit 92 and the memory unit 94.
當藉由剝離手段60而將光學薄膜薄片5從載體薄膜2剝離時，係發生剝離帶電。若是發生剝離帶電，則例如光學薄膜薄片5會藉由正的電荷而帶電，載體薄膜2會藉由負的電荷而帶電。若是將發生了剝離帶電之光學薄膜薄片5直接貼合於面板構件6上，則不僅會有起因於在光學薄膜薄片5中所積蓄之電荷而使面板構件6帶電並產生靜電破壞的情況，當面板構件6係身為液晶面板的情況時，也會有發生如同圖2中所示一般之光學性顯示裝置7的起因於液晶配向紊亂所導致之漏光現象的情形。若是發生漏光現象，則由光學性顯示裝置7之透射檢查所進行的缺陷檢測係變得困難。故而，在光學性顯示裝置7之連續製造技術中，對於在從載體薄膜2而將光學薄膜薄片5剝離時所發生的光學薄膜薄片5之剝離帶電作抑制或防止一事，係成為極為重要的課題。 When the optical film sheet 5 is peeled off from the carrier film 2 by the peeling means 60, peeling electrification occurs. If peeling electrification occurs, for example, the optical film sheet 5 is charged by a positive charge, and the carrier film 2 is charged by a negative charge. When the optical film sheet 5 on which the peeling electrification has occurred is directly bonded to the panel member 6, not only the charge accumulated in the optical film sheet 5 but also the panel member 6 is charged and electrostatic breakdown occurs. When the panel member 6 is a liquid crystal panel, there is a case where a light leakage phenomenon due to disorder of the liquid crystal alignment occurs in the optical display device 7 as shown in FIG. 2 . If a light leakage phenomenon occurs, the defect detection system by the transmission inspection of the optical display device 7 becomes difficult. Therefore, in the continuous manufacturing technique of the optical display device 7, it is an extremely important problem to suppress or prevent the peeling electrification of the optical film sheet 5 which occurs when the optical film sheet 5 is peeled off from the carrier film 2. .
圖3，係對於在將具有電荷之光學薄膜薄片5貼合於面板構件6上的情況時所發生之液晶配向紊亂的發生機制作展示。如同在圖3(a)中所示一般，面板構件6，係以在彩色濾光基板(CF基板)與薄膜電晶體基板 (TFT基板)之間封入有液晶層的液晶面板作為對象。例如，如同圖3(b)中所示一般，若是將具有起因於剝離帶電所發生的正電荷之光學薄膜薄片5貼合於面板構件6上，則起因於光學薄膜薄片5之正電荷，會在面板構件6內發生介電分極，並產生正電荷和負電荷。其結果，起因於CF基板之液晶層側之面和TFT基板之液晶層側之面之間的電位差，會發生液晶層之配向紊亂。在發生有液晶層之配向紊亂的場所處，由於光係會通過，因此，若是在光學性顯示裝置7之背後放置背光元件等之光源並從正面來作視覺辨認，則會看到如同圖2中所示一般之光學性顯示裝置7之表面成為亮點一般的不均狀態，白色的不均部之缺陷係變得難以被辨識出來，透射檢查係變得困難。當該電位差為大的情況時，係亦會有發生電晶體之靜電破壞的情況。 Fig. 3 is a view showing the production of a liquid crystal alignment disorder which occurs when the optical film sheet 5 having electric charges is bonded to the panel member 6. As shown in FIG. 3(a), the panel member 6 is formed on a color filter substrate (CF substrate) and a thin film transistor substrate. A liquid crystal panel in which a liquid crystal layer is sealed between (TFT substrates) is targeted. For example, as shown in FIG. 3(b), if the optical film sheet 5 having a positive charge due to peeling electrification is attached to the panel member 6, the positive charge of the optical film sheet 5 is caused by A dielectric polarization occurs in the panel member 6, and a positive charge and a negative charge are generated. As a result, the alignment difference between the liquid crystal layer due to the potential difference between the surface on the liquid crystal layer side of the CF substrate and the surface on the liquid crystal layer side of the TFT substrate occurs. In a place where the alignment disorder of the liquid crystal layer occurs, since the light system passes, if a light source such as a backlight element is placed behind the optical display device 7 and visually recognized from the front, it will be as shown in FIG. The surface of the general optical display device 7 shown in the above is a general uneven state of the bright spot, and the defect of the white uneven portion becomes difficult to be recognized, and the transmission inspection system becomes difficult. When the potential difference is large, there is a case where electrostatic breakdown of the transistor occurs.
在本發明中，在被剝離時而於光學薄膜薄片5處所產生的電荷，係可藉由在將光學薄膜薄片5從載體薄膜2剝離之前，預先對於載體薄膜2上之光學薄膜薄片5附加與在作了剝離時而在光學薄膜薄片5處所產生的電荷相對應之逆極性之電荷，來將其中和。 In the present invention, the electric charge generated at the optical film sheet 5 when peeled off can be attached to the optical film sheet 5 on the carrier film 2 in advance before the optical film sheet 5 is peeled off from the carrier film 2. The charge generated at the optical film sheet 5 at the time of peeling corresponds to the opposite polarity charge to neutralize.
圖4，係為對於用以對在被從載體薄膜2而剝離前的光學薄膜薄片5施加逆極性之電荷的逆電荷附加手段之其中一種實施形態作展示之圖。在此實施形態中，作為逆電荷附加手段20，係使用能夠藉由直流高電壓來使所需的極性之離子發生之靜電帶電裝置，但是，係並不被 限定於此。逆電荷附加手段20，係只要是能夠將必要之極性以及量的電荷強制性地附加於光學薄膜薄片5處者即可。靜電帶電裝置，係可使用市面販售者。 Fig. 4 is a view showing one embodiment of a reverse charge addition means for applying a reverse polarity charge to the optical film sheet 5 before being peeled off from the carrier film 2. In this embodiment, as the reverse electric charge adding means 20, an electrostatic charging device capable of generating ions of a desired polarity by a DC high voltage is used, but it is not Limited to this. The reverse charge adding means 20 may be any one that can forcibly attach a charge of a necessary polarity and amount to the optical film sheet 5. Electrostatic charging devices can be used by marketers.
由本發明之其中一種實施形態所致之逆電荷附加手段20，係可設為具備有高電壓產生部22和經由配線26而被與該高電壓產生部22作了連接的逆電荷附加部24者。逆電荷附加部24，係具備有以與光學薄膜薄片5相對向的方式所設置之複數之放電用電極。在逆電荷附加部24處，係藉由以高電壓產生部22來對於被設置在逆電荷附加部24處之複數之放電用電極施加電壓，來產生負極性(或者是正極性)之離子。所產生了的負極性(或者是正極性)之離子，係藉由使逆電荷附加部24對於被從載體薄膜2而剝離之前的光學薄膜薄片5作接近、或者是並不接近逆電荷附加部24地而進行離子照射，而被賦予至光學薄膜薄片5處，其結果，係能夠使光學薄膜薄片5帶電。 The reverse charge adding means 20 according to one embodiment of the present invention may be provided with a high voltage generating portion 22 and a reverse electric charge adding portion 24 connected to the high voltage generating portion 22 via the wiring 26. . The reverse charge adding portion 24 is provided with a plurality of discharge electrodes provided so as to face the optical film sheet 5. In the reverse charge adding portion 24, a negative polarity (or positive polarity) ion is generated by applying a voltage to the plurality of discharge electrodes provided at the reverse charge adding portion 24 by the high voltage generating portion 22. The generated negative polarity (or positive polarity) ion is obtained by bringing the reverse charge adding portion 24 close to the optical film sheet 5 before being peeled off from the carrier film 2, or is not close to the reverse charge adding portion 24. The ion film is irradiated and applied to the optical film sheet 5, and as a result, the optical film sheet 5 can be charged.
帶電有負電荷之光學薄膜薄片5，係沿著具備有楔狀之剖面形狀的剝離手段60而被朝向貼合位置70作搬送。光學薄膜薄片5，係在剝離手段60之前端部61處，藉由使載體薄膜2朝向與貼合位置70概略相反之方向作反折，而被從載體薄膜2剝離。當光學薄膜薄片5被從載體薄膜2而剝離時，在兩者相互剝離的位置係產生剝離帶電，並例如在光學薄膜薄片5處產生正電荷，在載體薄膜2處產生負電荷。光學薄膜薄片5，由於係在剝離前 而預先帶電有與在剝離時所產生的電荷量相對應之量的負電荷，因此，在剝離時所產生的電荷，係被此逆電荷所中和。 The negatively charged optical film sheet 5 is conveyed toward the bonding position 70 along the peeling means 60 having a wedge-shaped cross-sectional shape. The optical film sheet 5 is peeled off from the carrier film 2 by folding the carrier film 2 in a direction substantially opposite to the bonding position 70 at the end portion 61 of the peeling means 60. When the optical film sheet 5 is peeled off from the carrier film 2, peeling electrification occurs at a position where the two are peeled off from each other, and a positive charge is generated, for example, at the optical film sheet 5, and a negative charge is generated at the carrier film 2. Optical film sheet 5, because it is attached before peeling The pre-charged charge has a negative charge corresponding to the amount of charge generated at the time of peeling, and therefore, the charge generated at the time of peeling is neutralized by the reverse charge.
在其中一種實施形態中，較理想，逆電荷係涵蓋光學薄膜薄片5之全寬幅地而以直線狀來施加至光學薄膜薄片5處。為了達成此，較理想，係在逆電荷附加部24處設置有複數之放電用電極，複數之放電用電極，係涵蓋光學薄膜薄片5之全寬幅地而以直線狀來作並排配置。在將複數之放電用電極涵蓋全寬幅地來以直線狀作並排時，例如，係可將複數之放電用電極涵蓋全寬幅地來並排為一列或二列，或者是，係能夠以將複數之放電用電極配置為格子狀者作為1個單元，並將此單元涵蓋全寬幅地來在一列上作複數個的配置。藉由將複數之放電用電極如此這般地作配置，由於係能夠在光學薄膜薄片5之寬幅方向上均一地附加逆電荷，因此，係能夠有效地將在光學薄膜薄片5與載體薄膜2間之直線狀之剝離部分處所產生的電荷作中和。 In one embodiment, it is preferred that the reverse charge is applied to the optical film sheet 5 in a straight line covering the full width of the optical film sheet 5. In order to achieve this, it is preferable that a plurality of discharge electrodes are provided in the reverse charge adding portion 24, and the plurality of discharge electrodes cover the entire width of the optical film sheet 5 and are arranged side by side in a straight line. When a plurality of discharge electrodes are arranged in a straight line in a straight line, for example, a plurality of discharge electrodes may be arranged in a single row or two columns in a full width, or may be The plurality of discharge electrodes are arranged in a lattice shape as one unit, and the unit covers a full width and a plurality of configurations in one column. By disposing the plurality of discharge electrodes in this manner, since the reverse charge can be uniformly added in the wide direction of the optical film sheet 5, the optical film sheet 5 and the carrier film 2 can be effectively applied. The charge generated at the linear peeling portion is neutralized.
在其中一種實施形態中，較理想，逆電荷係在光學薄膜薄片5正被作搬送的期間中而被附加至光學薄膜薄片5處。在RTP方式之連續製造裝置10中，通常，在將光學薄膜薄片5貼合於面板構件6處之前，係進行有因應於光學薄膜薄片5之姿勢來對於面板構件6之姿勢作調整的對位。在為了進行此對位而檢測出光學薄膜薄片5之姿勢時，係暫時停止光學薄膜薄片5之搬送，並進行檢 測。故而，若是在使光學薄膜薄片5作了停止時，亦被附加與在搬送中所被附加之量相同量的電荷，則係會成為在光學薄膜薄片5處殘留有能夠將在剝離時所發生之電荷作中和的電荷量以上之電荷，此殘存電荷會有對於貼合後之面板構件6造成不良影響的情形。故而，較理想，在為了進行對位而使光學薄膜薄片5停止的期間中，係停止逆電荷之附加，並在光學薄膜薄片5正被作搬送的期間中，進行逆電荷之附加。 In one embodiment, it is preferable that the reverse electric charge is added to the optical film sheet 5 while the optical film sheet 5 is being conveyed. In the continuous manufacturing apparatus 10 of the RTP system, generally, before the optical film sheet 5 is attached to the panel member 6, the alignment of the posture of the panel member 6 in response to the posture of the optical film sheet 5 is performed. . When the posture of the optical film sheet 5 is detected in order to perform the alignment, the transfer of the optical film sheet 5 is temporarily stopped and the inspection is performed. Measurement. Therefore, when the optical film sheet 5 is stopped, the same amount of electric charge as that added during the conveyance is added, and the optical film sheet 5 remains at the time of peeling off. The charge is a charge equal to or higher than the amount of charge neutralized, and this residual charge may adversely affect the panel member 6 after bonding. Therefore, it is preferable to stop the addition of the reverse electric charge during the period in which the optical film sheet 5 is stopped in order to perform the alignment, and to add the reverse electric charge while the optical film sheet 5 is being transported.
作為用以在光學薄膜薄片5正被作搬送的期間中而將逆電荷附加至光學薄膜薄片5處的方法，例如係可考慮以下之方法。作為其中一個方法，係為恆常使高電壓產生部22動作，並在光學薄膜薄片5正被作搬送時，使逆電荷附加部24接近光學薄膜薄片5並使光學薄膜薄片5帶電的方法。逆電荷附加部24之移動，係可藉由控制部90來作控制。作為其他方法，係為並不改變使逆電荷附加部24對於光學薄膜薄片5而作了接近的狀態，並在光學薄膜薄片5之搬送中，使高電壓產生部22動作，而在使光學薄膜薄片5之搬送作了停止時，使高電壓產生部22停止的方法。高電壓產生部22之動作，係可藉由控制部90來作控制。 As a method for applying a reverse charge to the optical film sheet 5 while the optical film sheet 5 is being transported, for example, the following method can be considered. As one of the methods, the high voltage generating unit 22 is constantly operated, and when the optical film sheet 5 is being transported, the reverse charge adding portion 24 is brought close to the optical film sheet 5 to charge the optical film sheet 5. The movement of the inverse charge adding portion 24 can be controlled by the control unit 90. In another method, the reverse charge adding portion 24 is brought into close contact with the optical film sheet 5, and the high voltage generating portion 22 is operated during the transport of the optical film sheet 5, and the optical film is made When the conveyance of the sheet 5 is stopped, the high voltage generating unit 22 is stopped. The operation of the high voltage generating unit 22 can be controlled by the control unit 90.
在其中一種實施形態中，較理想，逆電荷係在較帶狀光學薄膜層積體1之最後與剝離手段60以外之構件作了接觸的位置更下游側處，而被附加至光學薄膜薄片5處。例如，在裝置10中，藉由饋送滾輪41而被作搬 送之帶狀光學薄膜層積體1，係在與導引滾輪46作了接觸之後，沿著剝離手段60而一直被搬送至剝離位置處。亦即是，在到達剝離位置前之帶狀光學薄膜層積體1所最後接觸的構件，係為導引滾輪46。例如，當在與導引滾輪46接觸之前而對於光學薄膜薄片5附加與在剝離時所產生的電荷相對應之逆電荷的情況時，於光學薄膜薄片5與導引滾輪46作了接觸時，係會有所附加了的逆電荷經由導引滾輪46而被除去或者是相反地起因於與導引滾輪46間之摩擦而導致在光學薄膜薄片5處積蓄必要以上之逆電荷的可能性。在此種情況中，由於係成為無法將在剝離時所產生的電荷中和，因此，較理想，逆電荷，係在與導引滾輪46作了接觸之後再被附加至光學薄膜薄片5處。但是，亦能夠預先對起因於與導引滾輪46之間之接觸所導致的電荷量之變化作考慮，並在與導引滾輪46接觸之前而對於光學薄膜薄片5附加逆電荷。 In one embodiment, it is preferable that the reverse charge is applied to the optical film sheet 5 at a position further downstream than a position at which the member of the strip-shaped optical film laminate 1 is in contact with a member other than the peeling means 60. At the office. For example, in the device 10, it is moved by the feeding roller 41. The strip-shaped optical film laminate 1 is conveyed to the peeling position along the peeling means 60 after being brought into contact with the guide roller 46. That is, the member finally contacted by the strip-shaped optical film laminate 1 before reaching the peeling position is the guide roller 46. For example, when the optical film sheet 5 is attached with a reverse charge corresponding to the electric charge generated at the time of peeling before the contact with the guide roller 46, when the optical film sheet 5 comes into contact with the guide roller 46, The added reverse charge is removed via the guide roller 46 or vice versa due to friction with the guide roller 46, resulting in the possibility of accumulating more than the necessary reverse charge at the optical film sheet 5. In this case, since it is impossible to neutralize the charge generated at the time of peeling, it is preferable that the reverse charge is attached to the optical film sheet 5 after coming into contact with the guide roller 46. However, it is also possible to consider in advance the change in the amount of charge caused by the contact with the guide roller 46, and to apply a reverse charge to the optical film sheet 5 before coming into contact with the guide roller 46.
逆電荷附加手段20，係為可對於光學薄膜薄片5而附加能夠將在剝離時所在光學薄膜薄片5處產生的電荷作中和之量以及極性的電荷者。用以進行中和之適當的電荷量以及極性，係可藉由實際使裝置10動作並對於在將光學薄膜薄片5貼合於面板構件6上之後的光學性顯示裝置7之漏光現象以及靜電破壞的有無作檢查，來進行設定。用以進行中和之適當的電荷量以及極性，係因應於光學薄膜薄片5以及載體薄膜2之品種、面板構件2之品種、帶狀光學薄膜層積體1之搬送速度及/或裝置10所 被設置之場所的溫度及濕度，而有所不同。故而，較理想，逆電荷附加手段20，係更進而包含有：對於實際製造後之光學性顯示裝置7之漏光現象以及靜電破壞的有無作確認，並以能夠對於光學薄膜薄片5附加不會使該些現象發生之量以及極性之電荷的方式，來進行調整的電荷調整部28。電荷調整部28，係構成為能夠藉由設定來對藉由高電壓產生部22所產生的極性與電壓值作變更。 The reverse charge adding means 20 is a charge which can add an amount and a polarity which can neutralize the electric charge generated at the optical film sheet 5 at the time of peeling to the optical film sheet 5. The appropriate amount of charge and polarity for neutralization can be achieved by actually operating the device 10 and for light leakage and electrostatic destruction of the optical display device 7 after bonding the optical film sheet 5 to the panel member 6. Whether or not to check, to set. The appropriate amount of charge and polarity for neutralization are due to the variety of the optical film sheet 5 and the carrier film 2, the type of the panel member 2, the transport speed of the strip-shaped optical film laminate 1, and/or the apparatus 10 The temperature and humidity of the place to be set vary. Therefore, it is preferable that the reverse charge addition means 20 further includes the presence or absence of light leakage phenomenon and electrostatic breakdown of the optical display device 7 after actual manufacture, and the addition of the optical film sheet 5 does not cause The charge adjustment unit 28 adjusts the amount of occurrence of these phenomena and the manner of the charge of the polarity. The charge adjustment unit 28 is configured to be able to change the polarity and voltage value generated by the high voltage generation unit 22 by setting.
在實施例1中，於RTP方式之連續製造裝置中，係作為逆電荷附加手段而使用了逆帶電裝置(SIMCO公司製)。此逆帶電裝置，係具備有直流高電壓產生裝置(型式：CM5)和電極(型式：HDR充電條)。電極，係為以能夠涵蓋光學薄膜薄片之全寬幅而使光學薄膜薄片帶電的方式所構成者。將此電極，在較載體薄膜與光學薄膜薄片相互被作剝離之位置而更上游側處，而配置於與光學薄膜薄片之表面(與被形成有黏著層之面相反側之面)相對向的位置處。直流高電壓產生裝置，係以會使被從載體薄膜而剝離之前的光學薄膜薄片以-10kV~-15kV之電位來帶電的方式，而作設定。在本實施例中，作為附有黏著層之光學薄膜薄片，係使用日東電工公司製之附有離模薄膜(載體薄膜)之光學薄膜(型式：NPF-CMG1765CU)。 In the first embodiment, in the continuous manufacturing apparatus of the RTP system, an inverse charging device (manufactured by SIMCO Corporation) is used as a counter charge addition means. This reverse charging device is provided with a DC high voltage generating device (type: CM5) and an electrode (type: HDR charging bar). The electrode is constructed by covering the entire width of the optical film sheet to charge the optical film sheet. The electrode is disposed on the upstream side of the position where the carrier film and the optical film sheet are separated from each other, and is disposed on the surface of the optical film sheet opposite to the surface on the side opposite to the surface on which the adhesive layer is formed. Location. The DC high voltage generating device is set such that the optical film sheet before being peeled off from the carrier film is charged at a potential of -10 kV to -15 kV. In the present embodiment, as the optical film sheet with the adhesive layer, an optical film (type: NPF-CMG1765CU) made of a release film (carrier film) manufactured by Nitto Denko Corporation was used.
在藉由上述逆帶電裝置而使光學薄膜帶電之 後，藉由剝離手段而將光學薄膜薄片從載體薄膜剝離。接著，在藉由從LC電子公司製液晶電視(型式49UB8300-CG)所取出並將被作了貼合的光學薄膜剝離所得到之液晶面板構件的其中一面上，將作了剝離的上述光學薄膜薄片，藉由貼合手段來作了貼合。在液晶面板構件之相反側之面上，將同樣之帶電後而作了剝離的光學薄膜薄片作了貼合。在實施例1中，在從將光學薄膜薄片從載體薄膜而剝離之後起直到被貼合於液晶面板構件上為止的期間中，係並未使用用以從光學薄膜薄片而將電荷除去之除電手段。藉由目視，來對於如此這般所製造的液晶顯示裝置之亮點現象的發生之有無作了確認。 The optical film is charged by the reverse charging device described above Thereafter, the optical film sheet is peeled off from the carrier film by a peeling means. Next, the optical film which was peeled off was peeled off on one side of the liquid crystal panel member obtained by peeling off the bonded optical film from a liquid crystal television (Model 49UB8300-CG) manufactured by LC Electronics Co., Ltd. The sheets are bonded by means of lamination. On the opposite side of the liquid crystal panel member, the same optical film sheet which was peeled off after charging was bonded. In the first embodiment, during the period from the peeling of the optical film sheet from the carrier film to the bonding to the liquid crystal panel member, the means for removing the electric charge from the optical film sheet is not used. . The presence or absence of the occurrence of a bright spot phenomenon of the liquid crystal display device manufactured as such was confirmed by visual observation.
在比較例1中，係使用與在實施例1中所使用的裝置相同之RTP方式之連續製造裝置，來並不使用在將光學薄膜薄片從載體薄膜而剝離之前的逆帶電裝置、亦不使用在將光學薄膜薄片從載體薄膜剝離後起直到被貼合於液晶面板構件上為止的期間中之用以從光學薄膜薄片而將電荷除去之除電手段地，而製造了液晶顯示裝置。所使用的液晶面板構件以及光學薄膜薄片之品種、液晶顯示裝置之製造方法、以及液晶顯示裝置之帶電不均的檢查方法，係與實施例1相同。 In Comparative Example 1, a continuous production apparatus of the same RTP method as that used in Example 1 was used, and the reverse charging device before peeling off the optical film sheet from the carrier film was not used, and was not used. A liquid crystal display device was manufactured by removing the electric charge from the optical film sheet during the period from the peeling of the optical film sheet from the carrier film to the bonding to the liquid crystal panel member. The liquid crystal panel member and the type of the optical film sheet to be used, the method of manufacturing the liquid crystal display device, and the method of inspecting the charging unevenness of the liquid crystal display device are the same as those in the first embodiment.
在比較例2中，係使用與在實施例1中所使用的裝置相同之RTP方式之連續製造裝置，來並不使用在將光學薄膜薄片從載體薄膜而剝離之前的逆帶電裝置，但是使用在將光學薄膜薄片從載體薄膜剝離後起直到被貼 合於液晶面板構件上為止的期間中之用以從光學薄膜薄片而將電荷除去之除電手段(KEYENCE公司製除電器，型式：SJ-HS01)地，而製造了液晶顯示裝置。除電手段之使用條件，係為電壓24V、電流500mA、空氣壓0.5MPa、空氣流量60L/min。所使用的液晶面板構件以及光學薄膜薄片之品種、液晶顯示裝置之製造方法、以及液晶顯示裝置之帶電不均的檢查方法，係與實施例1相同。 In Comparative Example 2, a continuous manufacturing apparatus of the same RTP method as that used in Example 1 was used, and the reverse charging device before peeling off the optical film sheet from the carrier film was not used, but was used in After peeling off the optical film sheet from the carrier film until it is pasted A liquid crystal display device was produced by a static elimination means (type: SJ-HS01 manufactured by Keyence Corporation) for removing electric charges from the optical film sheet during the period of the liquid crystal panel member. The conditions of use of the static elimination means are voltage 24V, current 500mA, air pressure 0.5 MPa, and air flow rate 60 L/min. The liquid crystal panel member and the type of the optical film sheet to be used, the method of manufacturing the liquid crystal display device, and the method of inspecting the charging unevenness of the liquid crystal display device are the same as those in the first embodiment.
將實驗結果展示於表1中。根據此結果，可以得知，對於在將光學薄膜薄片從載體薄膜而剝離前之光學薄膜薄片而將與在剝離時所在光學薄膜薄片處帶電的電荷相對應之逆電荷作附加一事，對於光學性顯示裝置之製造而言，係為有效。在實施例1中，係並未確認到液晶顯示裝置之帶電不均，但是，在比較例1以及比較例2中，係確認到了液晶顯示裝置之帶電不均。關於比較例2，由於係僅能夠在從將光學薄膜薄片剝離起直到被貼合於液晶面板構件上為止的極短之距離以及期間中而將電荷除去，因此係並無法將帶電了的電荷充分地除去。 The experimental results are shown in Table 1. From this result, it can be seen that for the optical film sheet before peeling off the optical film sheet from the carrier film, the reverse charge corresponding to the charge charged at the optical film sheet at the time of peeling is added, for the optical property The manufacture of the display device is effective. In the first embodiment, the charging unevenness of the liquid crystal display device was not confirmed. However, in Comparative Example 1 and Comparative Example 2, the charging unevenness of the liquid crystal display device was confirmed. In Comparative Example 2, since the electric charge can be removed only during the extremely short distance and period from when the optical film sheet is peeled off until it is bonded to the liquid crystal panel member, the charged electric charge cannot be sufficiently obtained. Removed.
1‧‧‧帶狀光學薄膜層積體 1‧‧‧Strip optical film laminate
2‧‧‧載體薄膜 2‧‧‧ Carrier film
3‧‧‧黏著層 3‧‧‧Adhesive layer
4‧‧‧帶狀光學薄膜 4‧‧‧Strip optical film
5‧‧‧光學薄膜薄片 5‧‧‧Optical film sheet
6‧‧‧面板構件 6‧‧‧ Panel components
6'‧‧‧被貼合有光學薄膜薄片之面板構件 6'‧‧‧Flap member laminated with optical film sheets
10‧‧‧RTP方式之連續製造裝置 10‧‧‧Continuous manufacturing equipment of RTP mode
20‧‧‧逆電荷附加手段 20‧‧‧Reverse charge attachment
30‧‧‧切入線形成手段 30‧‧‧cutting line formation means
40‧‧‧薄膜搬送手段 40‧‧‧film transport means
41、42‧‧‧饋送滾輪 41, 42‧‧‧ Feeding wheel
46‧‧‧導引滾輪 46‧‧‧Guide Roller
50‧‧‧貼合手段 50‧‧‧Means of fitting
51、52‧‧‧貼合滾輪 51, 52‧‧‧ fitted roller
60‧‧‧剝離手段 60‧‧‧Dissipation means
61‧‧‧剝離手段之頂部 61‧‧‧Top of the stripping method
70‧‧‧貼合位置 70‧‧‧ Fitted position
80‧‧‧面板構件搬送手段 80‧‧‧ Panel components transport means
82‧‧‧既定待機位置 82‧‧‧Standed standby position
90‧‧‧控制手段 90‧‧‧Control means
92‧‧‧資訊處理部 92‧‧‧Information Processing Department
94‧‧‧記憶部 94‧‧‧Memory Department
R1‧‧‧送出卷 R1‧‧‧Send the volume
R2‧‧‧捲取卷 R2‧‧‧Volume Roll
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| TW200949782A (en) * | 2007-12-11 | 2009-12-01 | Nitto Denko Corp | Method for manufacturing optical display device and system for manufacturing optical display device |
| TW201140196A (en) * | 2010-06-24 | 2011-11-16 | Nitto Denko Corp | Continuous manufacturing system for liquid crystal display panel and continuous manufacturing method for liquid crystal display panel |
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| TW201245700A (en) * | 2008-12-25 | 2012-11-16 | Nitto Denko Corp | Method of manufacturing liquid crystal display device, and apparatus for manufacturing liquid crystal display device |
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| JP5458212B1 (en) * | 2012-11-19 | 2014-04-02 | 日東電工株式会社 | Method and apparatus for manufacturing an optical display device |
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| TW200833500A (en) * | 2006-09-27 | 2008-08-16 | Fujifilm Corp | Apparatus and method for manufacturing photosensitive laminate, photosensitive transfer material, rib and method for forming the same, method for manufacturing laminate, member for display device, color filter for display device, method for manufacturing |
| TW200949782A (en) * | 2007-12-11 | 2009-12-01 | Nitto Denko Corp | Method for manufacturing optical display device and system for manufacturing optical display device |
| TW201245700A (en) * | 2008-12-25 | 2012-11-16 | Nitto Denko Corp | Method of manufacturing liquid crystal display device, and apparatus for manufacturing liquid crystal display device |
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