TWI601987B - Production apparatus for optical film and affixed system - Google Patents

Production apparatus for optical film and affixed system Download PDF

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Publication number
TWI601987B
TWI601987B TW102134555A TW102134555A TWI601987B TW I601987 B TWI601987 B TW I601987B TW 102134555 A TW102134555 A TW 102134555A TW 102134555 A TW102134555 A TW 102134555A TW I601987 B TWI601987 B TW I601987B
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optical film
film
optical
light
sheet
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TW102134555A
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TW201418799A (en
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池墻卓朗
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住友化學股份有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/0073—Optical laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
    • B29D11/00788—Producing optical films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B41/00—Arrangements for controlling or monitoring lamination processes; Safety arrangements
    • B32B2041/04—Detecting wrong registration, misalignment, deviation, failure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/14—Velocity, e.g. feed speeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ophthalmology & Optometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Analytical Chemistry (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Description

光學膜之製造裝置及貼合系統 Optical film manufacturing device and bonding system

本發明係關於光學膜之製造裝置及貼合系統。 The present invention relates to an optical film manufacturing apparatus and a bonding system.

本案根據2012年10月5日日本申請之特願2012-223299號主張優先權，在此沿用其內容。 In this case, the priority is claimed in Japanese Patent Application No. 2012-223299, filed on October 5, 2012, the content of which is incorporated herein.

偏光膜、相位差膜等光學膜係構成液晶顯示裝置的重要光學零件。例如，在液晶顯示裝置中，偏光膜作為矩形狀的光學膜晶片而各配置一枚在液晶面板的上下面。偏光膜係例如由PVA(聚乙烯醇(polyvinyl alcohol))等所成之偏光片膜被由TAC(三醋酸纖維素(Triacetyl cellulose))膜等所成之2枚保護膜所包夾的構造。在偏光片膜係被要求較高的接著性，俾使保護膜不會由偏光片膜剝離。 An optical film such as a polarizing film or a retardation film constitutes an important optical component of a liquid crystal display device. For example, in the liquid crystal display device, the polarizing film is disposed on the upper and lower surfaces of the liquid crystal panel as a rectangular optical film wafer. The polarizing film is a structure in which a polarizer film made of PVA (polyvinyl alcohol) or the like is sandwiched by two protective films made of a TAC (Triacetyl Cellulose) film or the like. In the polarizer film system, high adhesion is required, so that the protective film is not peeled off from the polarizer film.

以往，藉由對膜的表面施行電暈處理，將膜的表面進行改質，加大膜的表面的親水性而提高接著性。在工廠的生產線等，使電極與處理滾筒之間的間隙產生電暈放電，在電極與處理滾筒之間的間隙，將捲成滾筒狀的膜形成為片材狀而以預定的速度通過，且對膜的表面施行電暈處理。接著，將已被施行電暈處理的膜捲繞成滾筒狀，藉此製作捲狀原材料滾筒(參照例如專利文獻1)。 Conventionally, by subjecting the surface of the film to corona treatment, the surface of the film is modified to increase the hydrophilicity of the surface of the film to improve the adhesion. In a production line of the factory or the like, a corona discharge is generated in a gap between the electrode and the processing roller, and a film wound into a roll shape is formed into a sheet shape at a gap between the electrode and the processing roller to pass at a predetermined speed, and The surface of the film was subjected to corona treatment. Then, the film which has been subjected to the corona treatment is wound into a roll shape to prepare a roll of the roll material (see, for example, Patent Document 1).

捲狀原材料滾筒係被導入至光學膜的貼合系統。由捲狀原材料滾筒所被捲出的膜係被切割成預定尺寸，且被貼合在液晶面板。接著，藉由外觀檢査裝置，檢查光學膜與液晶面板之間的貼合不良。 The roll of the raw material roll is introduced into the bonding system of the optical film. The film which is wound up by the roll of the roll material is cut into a predetermined size and bonded to the liquid crystal panel. Next, the adhesion inspection between the optical film and the liquid crystal panel was examined by the visual inspection device.

【先前技術文獻】 [Previous Technical Literature] 【專利文獻】 [Patent Literature]

【專利文獻1】日本特開2001-305052號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2001-305052

根據電暈處理，因應膜的種類，將電暈放電的輸出值設定為預定的值，藉此可提高膜表面的接著性。但是，根據本發明人的知見，無關於適當控制電暈放電的輸出值來施行電暈處理，在外觀檢査工序中，會有發現因膜間的接著力不足而起的貼合不良的情形。如上所示之不良係在將光學膜貼合在液晶面板時的外觀檢査中被發現。因此，必須進行將光學膜由液晶面板剝離，重新貼合光學膜的再製處理，造成使生產性降低的原因。 According to the corona treatment, the output value of the corona discharge is set to a predetermined value in accordance with the type of the film, whereby the adhesion of the film surface can be improved. However, according to the knowledge of the inventors of the present invention, it is not necessary to appropriately control the output value of the corona discharge to perform the corona treatment, and in the visual inspection step, there is a case where the bonding failure due to insufficient adhesion between the films is observed. The defects as described above were found in the visual inspection when the optical film was bonded to the liquid crystal panel. Therefore, it is necessary to perform a re-fabrication process in which the optical film is peeled off from the liquid crystal panel and the optical film is reattached, resulting in a decrease in productivity.

本發明之態樣之目的在提供可事前檢測因膜間的接著力不足而起的貼合不良的光學膜之製造裝置及貼合系統。 An object of the present invention is to provide a manufacturing apparatus and a bonding system for an optical film which can detect a poor bonding failure due to insufficient adhesion between films.

為達成上述目的，本發明之態樣之光學膜之製造裝置及貼合系統係採用以下構成。 In order to achieve the above object, the optical film manufacturing apparatus and the bonding system according to the aspect of the invention have the following constitutions.

(1)本發明之一態樣之光學膜之製造裝置係包含：搬送裝置，其係搬送光學膜；電暈處理裝置，其係被配置在前述光學膜的搬送路徑上，在 與前述光學膜的搬送方向呈正交的前述光學膜的寬度方向產生電暈放電，且在前述光學膜的表面施行電暈處理；及檢査裝置，其係遍及前述光學膜的寬度方向來檢査藉由前述電暈放電所發出的光的光量。 (1) An apparatus for producing an optical film according to an aspect of the present invention includes: a transfer device that transports an optical film; and a corona treatment device that is disposed on a transport path of the optical film, Corona discharge is generated in the width direction of the optical film orthogonal to the transport direction of the optical film, and corona treatment is performed on the surface of the optical film; and an inspection device is used to check the width direction of the optical film. The amount of light emitted by the aforementioned corona discharge.

(2)在上述(1)所記載之光學膜之製造裝置中，前述檢査裝置亦可包含接受藉由前述電暈放電所發出的光的CCD攝影機。 (2) In the apparatus for manufacturing an optical film according to (1), the inspection apparatus may include a CCD camera that receives light emitted by the corona discharge.

(3)本發明之其他態樣之貼合系統係包含：上述(1)或(2)所記載之光學膜之製造裝置；判定裝置，其係判定藉由前述電暈放電所發出的光的光量是否包含在預定的範圍內；切斷裝置，其係由藉由前述光學膜之製造裝置所製造的光學膜，將藉由前述判定裝置而被判定為未包含在前述預定範圍內的部分作為不良部分進行切離，形成不存在前述不良部分的光學膜；回收裝置，其係回收前述不良部分；及貼合裝置，其係將不存在藉由前述切斷裝置所形成的前述不良部分的光學膜貼合在貼合對象物。 (3) A bonding system according to another aspect of the present invention, comprising: the apparatus for manufacturing an optical film according to (1) or (2) above, wherein the determining device determines the light emitted by the corona discharge. Whether or not the amount of light is included in a predetermined range; the cutting device is an optical film manufactured by the manufacturing apparatus of the optical film, and is determined to be not included in the predetermined range by the determining means The defective portion is cut away to form an optical film in which the defective portion is not present; the recovery device recovers the defective portion; and the bonding device which does not have the optical portion of the defective portion formed by the cutting device The film is bonded to the object to be bonded.

根據本發明之態樣，可事前檢測因膜間的接著力不足而起的貼合不良。 According to the aspect of the present invention, it is possible to detect in advance the poor bonding due to insufficient adhesion between the films.

1‧‧‧光學膜之製造裝置 1‧‧‧Optical film manufacturing device

2‧‧‧搬送裝置 2‧‧‧Transporting device

3‧‧‧電暈處理裝置 3‧‧‧Corona treatment device

4‧‧‧檢査裝置 4‧‧‧Checking device

5‧‧‧控制裝置 5‧‧‧Control device

6‧‧‧分散型控制系統(DCS) 6‧‧‧Dispersed Control System (DCS)

20‧‧‧裝填部 20‧‧‧Loading Department

21a、21b、21c、21d‧‧‧搬送滾筒 21a, 21b, 21c, 21d‧‧‧ transport rollers

23‧‧‧捲繞部 23‧‧‧Winding Department

30‧‧‧電暈處理部 30‧‧‧Corona Treatment Department

31‧‧‧處理滾筒 31‧‧‧Processing roller

32‧‧‧電極 32‧‧‧ electrodes

33‧‧‧臭氧排氣導管 33‧‧‧Ozone exhaust duct

33a‧‧‧箱構件 33a‧‧‧Box components

33b‧‧‧配管 33b‧‧‧Pipe

40‧‧‧CCD攝影機 40‧‧‧CCD camera

40a‧‧‧第1攝影機(CCD攝影機) 40a‧‧‧1st camera (CCD camera)

40b‧‧‧第2攝影機(CCD攝影機) 40b‧‧‧2nd camera (CCD camera)

41‧‧‧運算裝置 41‧‧‧ arithmetic device

100‧‧‧貼合系統 100‧‧‧Fitting system

101‧‧‧搬送裝置 101‧‧‧Transporting device

102‧‧‧光學片材供給部 102‧‧‧Optical Sheet Supply Department

103‧‧‧捲繞機 103‧‧‧Winding machine

104‧‧‧測長器 104‧‧‧ Length measuring device

105‧‧‧檢測裝置 105‧‧‧Detection device

106‧‧‧切斷裝置 106‧‧‧cutting device

107‧‧‧回收裝置 107‧‧‧Recycling device

108‧‧‧貼合裝置 108‧‧‧Fitting device

109‧‧‧控制裝置 109‧‧‧Control device

110‧‧‧判定裝置 110‧‧‧Determining device

111‧‧‧照明部 111‧‧‧Lighting Department

112‧‧‧光檢測器 112‧‧‧Photodetector

113‧‧‧面板搬送裝置 113‧‧‧ Panel conveyor

114‧‧‧面板保持部 114‧‧‧Face Holder

115‧‧‧面板移動部 115‧‧‧ Panel Moving Department

116‧‧‧輸送器 116‧‧‧ conveyor

117‧‧‧刀刃 117‧‧‧blade

118‧‧‧導引滾輪 118‧‧‧Guide Roller

119‧‧‧貼合滾輪 119‧‧‧ fitted roller

A1‧‧‧貼合區 A1‧‧‧ compliant area

AR1‧‧‧膜搬送區域 AR1‧‧‧ film transport area

AR2‧‧‧滾筒露出區域 AR2‧‧‧ Roller exposed area

CL‧‧‧中心線 CL‧‧‧ center line

F‧‧‧搬送光學片材 F‧‧‧Transporting optical sheets

F1‧‧‧光學構件 F1‧‧‧Optical components

F2‧‧‧黏著層 F2‧‧‧Adhesive layer

F3‧‧‧隔離件 F3‧‧‧Isolation

F4‧‧‧表面保護膜 F4‧‧‧Surface protection film

F5‧‧‧貼合片材 F5‧‧‧Fitting sheet

F6‧‧‧偏光片膜 F6‧‧‧ polarizer film

F7‧‧‧第1膜 F7‧‧‧1st film

F8‧‧‧第2膜 F8‧‧‧2nd film

F10‧‧‧良品片材片 F10‧‧‧Good sheet

F13‧‧‧不良品片材片 F13‧‧‧Defective sheet

Fa‧‧‧未處理膜(光學膜) Fa‧‧‧Untreated film (optical film)

Fb‧‧‧處理完畢膜(光學膜) Fb‧‧‧Processed film (optical film)

P‧‧‧液晶面板(貼合對象物) P‧‧‧LCD panel (for bonding objects)

P1‧‧‧第1基板 P1‧‧‧1st substrate

P2‧‧‧第2基板 P2‧‧‧2nd substrate

P3‧‧‧液晶層 P3‧‧‧ liquid crystal layer

P4‧‧‧顯示區域 P4‧‧‧ display area

R‧‧‧滾筒 R‧‧‧Roller

W1‧‧‧膜寬幅 W1‧‧‧ film width

W2‧‧‧膜寬度方向中的滾筒露出區域AR2的長度 W2‧‧‧ Length of the roll exposed area AR2 in the film width direction

W3‧‧‧膜寬度方向中的處理滾筒31的長度 W3‧‧‧ Length of the treatment drum 31 in the film width direction

Wa‧‧‧2個CCD攝影機40之中第1攝影機40a的視野寬幅 Wide field of view of the first camera 40a among the Wa ‧ ‧ 2 CCD cameras 40

Wb‧‧‧第2攝影機40b的視野寬幅 Wb‧‧‧2nd camera 40b wide field of view

第一圖係顯示本發明之一實施形態之光學膜之製造裝置的模式圖。 The first drawing is a schematic view showing an apparatus for manufacturing an optical film according to an embodiment of the present invention.

第二圖係光學膜之製造裝置的部分斜視圖。 The second drawing is a partial oblique view of the manufacturing apparatus of the optical film.

第三圖係顯示CCD攝影機與處理滾筒的配置關係圖。 The third figure shows the configuration relationship between the CCD camera and the processing roller.

第四A圖係顯示將放電輸出設定為800W時的光學膜的寬度方向的位置與光量位準的關係圖。 The fourth A diagram shows a relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 800 W.

第四B圖係顯示將放電輸出設定為800W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 4B is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 800 W.

第五圖係顯示本發明之一實施形態之貼合系統的概略構成圖。 Fig. 5 is a schematic block diagram showing a bonding system according to an embodiment of the present invention.

第六圖係顯示液晶面板之一例的上視圖。 The sixth drawing shows a top view of an example of a liquid crystal panel.

第七圖係顯示光學片材之一例的剖面圖。 The seventh drawing is a cross-sectional view showing an example of an optical sheet.

第八A圖係顯示將放電輸出設定為1200W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 8A is a graph showing the relationship between the position in the width direction of the optical film and the amount of light amount when the discharge output is set to 1200 W.

第八B圖係顯示將放電輸出設定為1200W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 8B is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 1200 W.

第九A圖係顯示將放電輸出設定為1000W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 9A is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 1000 W.

第九B圖係顯示將放電輸出設定為1000W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 9B is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 1000 W.

第十A圖係顯示將放電輸出設定為600W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 10A is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 600 W.

第十B圖係顯示將放電輸出設定為600W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 10B is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 600 W.

第十一A圖係顯示將放電輸出設定為400W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 11A is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 400 W.

第十一B圖係顯示將放電輸出設定為400W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 11B is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 400 W.

第十二A圖係顯示將放電輸出設定為300W時的光學膜的寬度方向的 位置與光量位準的關係圖。 Figure 12A shows the width direction of the optical film when the discharge output is set to 300W. A map of position and light level.

第十二B圖係顯示將放電輸出設定為300W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 12B is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 300 W.

第十三A圖係顯示將放電輸出設定為230W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 13A is a graph showing the relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 230 W.

第十三B圖係顯示將放電輸出設定為230W時的光學膜的寬度方向的位置與光量位準的關係圖。 Fig. 13B is a graph showing the relationship between the position in the width direction of the optical film and the amount of light amount when the discharge output is set to 230 W.

以下一面參照圖示，一面說明本發明之實施形態，惟本發明並非限定於以下實施形態。 The embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the following embodiments.

其中，在以下所有圖示中，為了易於觀看圖示，使各構成要素的尺寸或比率等適當不同。此外，在以下說明及圖示中，對相同或相當的要素標註相同的符號，且省略重複的說明。 In addition, in all of the following illustrations, in order to make it easy to view an illustration, the dimension, ratio, etc. of each component are suitably mutually different. In the following description and the drawings, the same or corresponding elements are designated by the same reference numerals, and the repeated description is omitted.

在以下說明中，視需要設定XYZ正交座標系，一面參照該XYZ正交座標系，一面說明各構件的位置關係。在本實施形態中，係將長形光學膜的寬度方向設為X方向，在光學膜的面內與X方向呈正交的方向(長形光學膜的搬送方向)設為Y方向，與X方向及Y方向呈正交的方向設為Z方向。 In the following description, the XYZ orthogonal coordinate system is set as needed, and the positional relationship of each member will be described with reference to the XYZ orthogonal coordinate system. In the present embodiment, the width direction of the elongated optical film is set to the X direction, and the direction orthogonal to the X direction in the plane of the optical film (the transport direction of the elongated optical film) is set to the Y direction, and X The direction in which the direction and the Y direction are orthogonal is the Z direction.

第一圖係顯示本發明之一實施形態之光學膜之製造裝置的模式圖。以下說明製造構成偏光膜的偏光片膜來作為光學膜之例，但是並非限定於此。光學膜除了偏光片膜以外，亦可為構成偏光膜的保護膜。此外，亦可為相位差膜或亮度提升膜等，亦可為積層相位差膜或偏光膜等複 數光學元件者。 The first drawing is a schematic view showing an apparatus for manufacturing an optical film according to an embodiment of the present invention. Hereinafter, an example in which a polarizer film constituting a polarizing film is produced as an optical film will be described, but the invention is not limited thereto. The optical film may be a protective film constituting the polarizing film in addition to the polarizer film. In addition, it may be a retardation film or a brightness enhancement film, or may be a laminated retardation film or a polarizing film. Number of optical components.

偏光膜係例如由PVA(聚乙烯醇)等所成之偏光片膜被作為保護膜的2枚纖維素系膜亦即TAC(三醋酸纖維素)膜所包夾的構造。 The polarizing film is a structure in which a polarizer film made of PVA (polyvinyl alcohol) or the like is sandwiched between two cellulose film which is a protective film, that is, a TAC (triacetate) film.

偏光片膜係藉由例如碘、二色性染料等二色性色素予以染色，俾以遮斷朝一定方向振動的光以外的光。偏光片膜係將例如以二色性色素染色後的PVA膜進行單軸延伸所形成。 The polarizer film is dyed by a dichroic dye such as iodine or a dichroic dye, and the light is blocked by light other than light that vibrates in a certain direction. The polarizer film is formed by, for example, uniaxially stretching a PVA film dyed with a dichroic dye.

以保護膜而言，除了TAC膜以外，亦可使用COP(環烯烴聚合物(cycloolefin polymer))膜、PET(聚對苯二甲酸乙二酯(Polyethylene terephthalate))膜、MMA(甲基丙烯酸甲酯(methyl methacrylate))膜等。 In terms of the protective film, in addition to the TAC film, a COP (cycloolefin polymer) film, a PET (polyethylene terephthalate) film, and MMA (methacrylic acid) may be used. A methyl methacrylate film or the like.

如第一圖所示，光學膜之製造裝置1係具備有：搬送長形狀的光學膜(以下有時僅稱為光學膜)的搬送裝置2；被配置在光學膜的搬送路徑上，以與光學膜的搬送方向呈正交的光學膜的寬度方向(以下有時稱為膜寬度方向)產生電暈放電，對光學膜的表面施行電暈處理的電暈處理裝置3；遍及光學膜的寬度方向，檢査藉由電暈放電所發出的光的光量的檢査裝置4；進行線的控制的控制裝置5；及與檢査裝置4及控制裝置5作電性連接的分散型控制系統6(Distributed Control System，以下有時稱為DCS)。 As shown in the first figure, the optical film manufacturing apparatus 1 includes a transport device 2 that transports a long optical film (hereinafter sometimes referred to simply as an optical film), and is disposed on a transport path of the optical film to The transport direction of the optical film is corona discharge in the width direction of the orthogonal optical film (hereinafter sometimes referred to as the film width direction), and the corona treatment device 3 that performs corona treatment on the surface of the optical film; the width of the optical film is spread over the width of the optical film. Direction, inspection device 4 for checking the amount of light emitted by corona discharge; control device 5 for performing line control; and distributed control system 6 electrically connected to inspection device 4 and control device 5 (Distributed Control) System, sometimes referred to as DCS).

搬送裝置2係具備有：裝填未被施行電暈處理的光學膜(以下有時稱為未處理膜)Fa的裝填部20；將被裝填在裝填部20的未處理膜Fa朝下游側搬送的搬送滾筒21a、搬送滾筒21b；將藉由電暈處理裝置3被施行電暈處理的光學膜(以下有時稱為處理完畢膜)Fb朝下游側搬送的搬送滾筒21c、搬送滾筒21d；及捲繞處理完畢膜Fb的捲繞部23。 The transport device 2 includes a loading unit 20 that mounts an optical film (hereinafter sometimes referred to as an unprocessed film) Fa that is not subjected to corona treatment, and transports the untreated film Fa that is loaded in the loading unit 20 to the downstream side. The transport roller 21a and the transport roller 21b; the transport roller 21c and the transport roller 21d that transport the optical film (hereinafter sometimes referred to as the processed film) Fb subjected to corona treatment by the corona treatment device 3 to the downstream side; The wound portion 23 of the processed film Fb is wound.

電暈處理裝置3係具備有電暈處理部30、及與電暈處理部30 對向配置的處理滾筒31。 The corona treatment device 3 includes a corona treatment unit 30 and a corona treatment unit 30. The treatment drum 31 is disposed opposite.

第二圖係光學膜之製造裝置1的部分斜視圖。在第二圖中係放大顯示構成光學膜之製造裝置1的電暈處理裝置3。 The second drawing is a partial perspective view of the optical film manufacturing apparatus 1. In the second drawing, the corona treatment device 3 constituting the manufacturing apparatus 1 of the optical film is enlarged.

如第二圖所示，電暈處理部30係具備有與處理滾筒31對向配置的電極32、及配置在電極32之上方的臭氧排氣導管33。 As shown in the second figure, the corona treatment unit 30 includes an electrode 32 disposed to face the processing drum 31 and an ozone exhaust duct 33 disposed above the electrode 32.

電極32係朝膜寬度方向延伸存在。膜寬度方向的電極32的長度係與膜寬度方向的處理滾筒31的長度為實質相等。在本實施形態中，使用陶瓷作為電極32的形成材料。此外亦可使用例如鋁、不銹鋼等金屬材料作為電極32的形成材料。 The electrode 32 is extended in the film width direction. The length of the electrode 32 in the film width direction is substantially equal to the length of the processing drum 31 in the film width direction. In the present embodiment, ceramic is used as a material for forming the electrode 32. Further, a metal material such as aluminum or stainless steel may be used as a material for forming the electrode 32.

臭氧排氣導管33係具備有長方體狀的箱構件33a、及與箱構件33a的上面相連接的配管33b。箱構件33a係以覆蓋電極32的周圍(電極32之與處理滾筒31相對向的部分以外的部分)的方式而設。藉此，可將藉由電暈處理所發生的臭氧排氣至外部。 The ozone exhaust duct 33 is provided with a box member 33a having a rectangular parallelepiped shape and a pipe 33b connected to the upper surface of the tank member 33a. The box member 33a is provided so as to cover the periphery of the electrode 32 (the portion of the electrode 32 other than the portion facing the processing drum 31). Thereby, the ozone generated by the corona treatment can be exhausted to the outside.

處理滾筒31係予以接地。在本實施形態中，係使用不銹鋼製者作為處理滾筒31。此外亦可使用例如矽膠滾筒等介電質被覆滾筒來作為處理滾筒31。其中，處理滾筒31係可對應與電極32的組合而使用各種滾筒。 The processing drum 31 is grounded. In the present embodiment, a stainless steel is used as the treatment drum 31. Further, a dielectric coating drum such as a silicone roller may be used as the processing drum 31. Among them, the processing drum 31 can use various rollers in accordance with the combination with the electrodes 32.

如第一圖所示，控制裝置5係總括控制搬送裝置2、電暈處理裝置3及檢査裝置4。例如，藉由控制裝置5的控制，分別設定光學膜的進給速度、電暈放電的輸出、處理滾筒31的進給速度。控制裝置5係朝向DCS6傳送光學膜的進給速度、電暈放電的輸出(包含電暈放電的ON-OFF)、處理滾筒31的進給速度等資訊。 As shown in the first figure, the control device 5 collectively controls the conveying device 2, the corona treatment device 3, and the inspection device 4. For example, the feed rate of the optical film, the output of the corona discharge, and the feed speed of the processing drum 31 are set by the control of the control device 5. The control device 5 transmits information such as the feed rate of the optical film, the output of the corona discharge (including the ON-OFF of the corona discharge), and the feed speed of the processing drum 31 toward the DCS 6.

如第一圖及第二圖所示，被裝填在裝填部20的未處理膜Fa 係以片材狀拉出未處理膜Fa的外周面上的捲端，以搬送滾筒21a、搬送滾筒21b導引而通過電極32與處理滾筒31之間，且以搬送滾筒21c、搬送滾筒21d導引而以可捲繞在捲繞部23的方式被裝設。藉由控制裝置5的控制，若在電極32與處理滾筒31之間被施加高頻的高電壓時，空氣被絕緣破壞而離子化，藉此發生電暈放電。使未處理膜Fa以預定速度通過至電暈放電內部，藉此對未處理膜Fa的電極32側的表面施行電暈處理。藉此，可得處理完畢膜Fb(作為光學膜的偏光片膜)。 As shown in the first and second figures, the untreated film Fa is loaded in the filling portion 20. The winding end of the outer peripheral surface of the untreated film Fa is pulled out in a sheet form, guided by the conveyance roller 21a and the conveyance roller 21b, and passed between the electrode 32 and the processing drum 31, and guided by the conveyance roller 21c and the conveyance roller 21d. It is attached so as to be wound around the winding portion 23. By the control of the control device 5, when a high-frequency high voltage is applied between the electrode 32 and the processing drum 31, the air is broken by insulation and ionized, whereby corona discharge occurs. The untreated film Fa is passed to the inside of the corona discharge at a predetermined speed, whereby the surface of the electrode 32 side of the untreated film Fa is subjected to corona treatment. Thereby, the processed film Fb (the polarizer film as an optical film) can be obtained.

其中，電暈處理係若使電極32的種類、電極32與處理滾筒31 之間的間隔、所施加的電壓、所被處理的光學膜的移動速度、電暈放電的輸出等改變，藉此對光學膜的表面施行所希望的表面改質處理即可。例如，光學膜的移動速度亦可設定為3m/分鐘以上、50m/分鐘以下的範圍的速度。 Wherein, the corona treatment is such that the type of the electrode 32, the electrode 32 and the processing drum 31 are The interval between them, the applied voltage, the moving speed of the optical film to be processed, the output of the corona discharge, and the like are changed, whereby the desired surface modification treatment can be performed on the surface of the optical film. For example, the moving speed of the optical film may be set to a speed in a range of 3 m/min or more and 50 m/min or less.

在本實施形態中，電極32與處理滾筒31之間的間隔被設定為 1mm。電暈放電的輸出被設定為800W。光學膜的移動速度被設定為10m/分鐘以上、30m/分鐘以下的範圍的速度。 In the present embodiment, the interval between the electrode 32 and the process roller 31 is set to 1mm. The output of the corona discharge was set to 800W. The moving speed of the optical film is set to a speed in a range of 10 m/min or more and 30 m/min or less.

如第一圖所示，檢査裝置4係被配置在比電暈處理裝置3更為下游側。 As shown in the first figure, the inspection device 4 is disposed on the downstream side of the corona treatment device 3.

檢査裝置4係具備有接受藉由電暈放電所發出的光(以下有時稱為電暈放電光)的CCD攝影機40、及與CCD攝影機40作電性連接的運算裝置41。檢査裝置4係根據CCD攝影機40所接受到的光的光量，檢查電暈放電的放電電流密度的膜寬度方向的不均。檢査裝置4係作為用以逐次得知電暈放電的放電電流密度的變化的監視系統(電暈監視系統)來發揮功能。 The inspection device 4 includes a CCD camera 40 that receives light emitted by corona discharge (hereinafter sometimes referred to as corona discharge light), and an arithmetic unit 41 that is electrically connected to the CCD camera 40. The inspection device 4 checks the unevenness in the film width direction of the discharge current density of the corona discharge based on the amount of light received by the CCD camera 40. The inspection device 4 functions as a monitoring system (corona monitoring system) for sequentially learning the change in the discharge current density of the corona discharge.

DCS6係朝向檢査裝置4傳送電暈監視的指示(包含檢査裝置 4的ON-OFF)、監視條件的指示(包含配方No.)等資訊。檢査裝置4係朝向DCS6傳送光學膜的寬度方向的位置與光量位準、異常發生的有無等資訊。 The DCS 6 transmits an indication of corona monitoring toward the inspection device 4 (including an inspection device) Information such as 4 ON-OFF), indication of monitoring conditions (including recipe No.). The inspection device 4 transmits information such as the position in the width direction of the optical film, the amount of light level, and the presence or absence of abnormality toward the DCS 6.

雖未圖示，在CCD攝影機40係設有複數個將光轉換成電訊 號而轉換成畫像的CCD。CCD攝影機40係線狀配置有複數CCD之所謂CCD線感測器攝影機。 Although not shown, the CCD camera 40 is provided with a plurality of signals for converting light into telecommunications. The CCD is converted into a portrait. The CCD camera 40 is a so-called CCD line sensor camera in which a plurality of CCDs are arranged in a line.

例如以使用在CCD攝影機40的鏡頭而言，係使用焦距為 24mm(f24)、開放值(F值)為2.8、光圈4(1段光圈)者。光圈4(1段光圈)意指當將開放值為2.8的鏡頭縮小1段時，開放值即成為4的鏡頭。 For example, in the case of using the lens of the CCD camera 40, the focal length is 24mm (f24), open value (F value) is 2.8, aperture 4 (1 segment aperture). Aperture 4 (1 segment aperture) means that when the lens having an open value of 2.8 is reduced by one segment, the open value becomes a lens of 4.

CCD攝影機40的視野寬幅為約760mm。CCD攝影機40的受 光距離為約930mm。CCD攝影機40的掃描率為999.9微秒。 The field of view of the CCD camera 40 is about 760 mm wide. CCD camera 40 The light distance is about 930 mm. The scanning rate of the CCD camera 40 is 999.9 microseconds.

運算裝置41係根據CCD攝影機40的受光資料來運算光量位 準，且求出光學膜的寬度方向的位置與光量位準的關係。其中，關於「光量位準」及「光學膜的寬度方向的位置與光量位準的關係」容後敘述。 The arithmetic unit 41 calculates the light level based on the light receiving data of the CCD camera 40. The relationship between the position in the width direction of the optical film and the level of the light amount is determined. Here, the relationship between the "light quantity level" and the "position of the optical film in the width direction and the light amount level" will be described later.

以下說明DCS6。 The DCS6 is explained below.

DCS6係由控制裝置5以串列通訊(RS-422)接收線的狀態， 當符合一定條件時，對檢査裝置4以Ethermet通訊(IEEE802.3 10BASE-T)發出電暈監視的指示。 The DCS 6 is in a state in which the control device 5 receives the line in serial communication (RS-422). When certain conditions are met, the inspection device 4 issues an indication of corona monitoring in Ethermet communication (IEEE 802.3 10BASE-T).

一定條件具體而言係指(1)線的速度為一定以上(膜正在 流動)、(2)電暈放電的指示為ON(電暈處理中)、(3)藉由在DCS6上的操作人員操作來發出電暈監視指示。當符合所有該等(1)~(3)時，即被發出電暈監視指示。亦即，當(1)~(3)之中即使有1個不符合條件時， 電暈監視指示即被停止。 Certain conditions specifically mean that the speed of the (1) line is more than a certain value (the film is working The flow), (2) the indication of the corona discharge is ON (in corona treatment), and (3) the corona monitor indication is issued by an operator operating on the DCS 6. When all of these (1) to (3) are met, a corona monitoring indication is issued. That is, when one of (1) to (3) does not meet the conditions, The corona monitoring indicator is stopped.

檢査裝置4係接受來自DCS6的電暈監視指示，開始電暈監 視，對DCS6傳送光學膜的寬度方向的位置與光量位準的資料。該資料係即時被更新(約每3秒)。DCS6係常時監視光量位準在預先設定的臨限值的範圍內推移，若不在範圍時，係顯示於DCS6內的監視器，並且使外部警報裝置(警告燈、蜂鳴器等)進行動作。藉此，使操作人員知道異常。此外，不僅光量位準，亦同樣地知道檢査裝置4的異常。DCS6係保存光量位準推移的歷史資料。 The inspection device 4 receives the corona monitoring instruction from the DCS6 and starts the corona monitoring. Depending on the position of the DCS6 in the width direction of the optical film and the amount of light. This information is updated immediately (about every 3 seconds). The DCS6 system constantly monitors the light amount level within a predetermined threshold value. If it is not in the range, it displays the monitor in the DCS6 and operates an external alarm device (warning lamp, buzzer, etc.). Thereby, the operator is made aware of the abnormality. Further, not only the light amount level but also the abnormality of the inspection device 4 is known. The DCS6 system preserves historical data of light level shifts.

第三圖係顯示CCD攝影機40(第1攝影機40a、第2攝影機40b) 與處理滾筒31的配置關係圖。在以下說明，係列舉朝膜寬度方向配置有2個CCD攝影機40a、CCD攝影機40b之例來作說明，但是CCD攝影機的配置數並非侷限於此。 The third figure shows the CCD camera 40 (the first camera 40a and the second camera 40b). A layout relationship with the processing drum 31. In the following description, a series of two CCD cameras 40a and CCD cameras 40b are arranged in the film width direction. However, the number of CCD cameras is not limited thereto.

CCD攝影機的配置數係可按照CCD攝影機的視野寬幅或膜 寬幅的大小來適當變更。例如若欲提高解析度時，亦可增加CCD攝影機的配置數，並且改變在CCD攝影機所使用的鏡頭來縮窄視野寬幅。 The number of configurations of the CCD camera can be wide or film according to the field of view of the CCD camera. The size of the width is appropriately changed. For example, if the resolution is to be increased, the number of CCD cameras can be increased, and the lens used in the CCD camera can be changed to narrow the field of view.

其中，若為電暈處理，亦可將CCD攝影機的膜寬度方向的 解析度形成為100μm/pixel左右。 Wherein, if corona treatment, the film width direction of the CCD camera can also be The resolution is formed to be about 100 μm/pixel.

在第三圖中，符號AR1係處理滾筒31之中光學膜被搬送的區 域(以下有時稱為膜搬送區域)。符號AR2係在處理滾筒31的兩端部中光學膜未被搬送的區域，亦即露出處理滾筒31的表面的區域(以下有時稱為滾筒露出區域)。符號W1係膜寬度方向中的膜搬送區域AR1的長度，亦即光學膜的寬幅(以下有時僅稱為膜寬幅)。符號W2係膜寬度方向中的滾筒露出 區域AR2的長度。符號W3係膜寬度方向中的處理滾筒31的長度，亦即處理滾筒31的全長。符號Wa係2個CCD攝影機40之中第1攝影機40a的視野寬幅。 符號Wb係第2攝影機40b的視野寬幅。符號CL係膜寬度方向中的處理滾筒31的中心線(以下有時僅稱為中心線)。 In the third figure, the symbol AR1 is an area in which the optical film is transported among the processing drums 31. Domain (hereinafter sometimes referred to as a membrane transporting area). The symbol AR2 is a region where the optical film is not conveyed at both end portions of the processing drum 31, that is, a region where the surface of the processing drum 31 is exposed (hereinafter sometimes referred to as a drum exposed region). The symbol W1 is the length of the film transport region AR1 in the film width direction, that is, the width of the optical film (hereinafter sometimes referred to simply as the film width). The symbol W2 is exposed in the width direction of the film. The length of the area AR2. The symbol W3 is the length of the processing drum 31 in the film width direction, that is, the entire length of the processing drum 31. The symbol Wa is a wide field of view of the first camera 40a among the two CCD cameras 40. The symbol Wb is a wide field of view of the second camera 40b. The symbol CL is the center line of the processing drum 31 in the film width direction (hereinafter sometimes referred to simply as the center line).

在本實施形態中，膜寬幅W1為1500mm，處理滾筒31的全長 W3為1800mm，CCD攝影機40a的視野寬幅Wa及CCD攝影機40b的視野寬幅Wb分別為760mm。 In the present embodiment, the film width W1 is 1500 mm, and the entire length of the processing drum 31 W3 is 1800 mm, and the field of view width Wa of the CCD camera 40a and the field of view width Wb of the CCD camera 40b are respectively 760 mm.

2個CCD攝影機40a、CCD攝影機40b係以考慮膜蛇行量來對 膜寬幅全體進行攝像的方式進行配置。在本實施形態中，第1攝影機40a以對處理滾筒31的-X方向側(左側)的膜搬送區域AR1進行攝像的方式予以配置，第2攝影機40b以對處理滾筒31的+X方向側(右側)的膜搬送區域AR1進行攝像的方式予以配置。 Two CCD cameras 40a and CCD cameras 40b are designed to take into account the amount of film snakes. The entire width of the film is imaged and arranged. In the present embodiment, the first camera 40a is arranged to image the film transport area AR1 on the -X direction side (left side) of the process drum 31, and the second camera 40b is on the +X direction side of the process drum 31 ( The film transport area AR1 of the right side is arranged to image.

具體而言，第1攝影機40a係以視野寬幅Wa的+X方向側的端 緣(右側的端緣)位於中心線CL的方式予以配置。第2攝影機40b係以視野寬幅Wb的-X方向側的端緣(左側的端緣)位於中心線CL的方式予以配置。 其中，第1攝影機40a的視野寬幅Wa的+X方向側的端部(右側的端部)與第2攝影機40b的視野寬幅Wb的-X方向側的端部(左側的端部)亦可在中心線CL附近一部分相疊合。 Specifically, the first camera 40a is the end on the +X direction side of the visual field width Wa. The edge (the edge on the right side) is placed in the center line CL. The second camera 40b is disposed such that the end edge (the left end edge) on the -X direction side of the visual field width Wb is located on the center line CL. The end portion (the right end portion) on the +X direction side of the visual field width Wa of the first camera 40a and the end portion (the left end portion) on the -X direction side of the visual field width Wb of the second camera 40b are also A part of the center line CL can be overlapped.

藉此，即使光學膜蛇行(蛇行量10mm)，亦可將光學膜的 總寬幅(1500mm)設為CCD攝影機40a、CCD攝影機40b的視野寬幅(將第1攝影機40a的視野寬幅760mm與第2攝影機40b的視野寬幅760mm相加後的寬幅1520mm)的範圍內。 Thereby, even if the optical film is meandering (the amount of snakes is 10 mm), the optical film can also be used. The total width (1500 mm) is a range in which the CCD camera 40a and the CCD camera 40b have a wide field of view (a width of 720 mm of the first camera 40a and a width of 760 mm of the second camera 40b). Inside.

此外，若可將光學膜的總寬幅設在CCD攝影機40a、CCD攝 影機40b的視野寬幅的範圍內，則可遍及光學膜的寬度方向來正確檢測電暈放電的放電光的光量。 In addition, if the total width of the optical film can be set in the CCD camera 40a, CCD photo Within the range of the wide field of view of the camera 40b, the amount of light of the discharge light of the corona discharge can be accurately detected throughout the width direction of the optical film.

根據本發明人的檢討，可知在放電電流密度與膜間接著力的 強度之間有高相關。此外，可知在放電電流密度與放電光的光量之間係有高相關，尤其若使用CCD攝影機，可精度高地檢測放電光的光量的不均。 其理由雖不明確，但是CCD攝影機係將光轉換成電訊號，由於放電光的光量會依放電電流密度而改變，因此在雙方，其發生的機制相似之故。因此，若使用CCD攝影機，來檢測光學膜的面內的放電光的光量的分布，可以高精度來預測因膜間的接著力不足而起的貼合不良的發生部位，可有助於製造良率的提升。 According to the review by the inventors, it is known that the discharge current density and the adhesion between the films are There is a high correlation between the intensities. Further, it is understood that there is a high correlation between the discharge current density and the amount of discharge light, and in particular, when a CCD camera is used, unevenness in the amount of discharge light can be detected with high precision. Although the reason is not clear, the CCD camera converts light into an electric signal, and since the amount of light of the discharge light changes depending on the discharge current density, the mechanism of occurrence is similar in both cases. Therefore, when a CCD camera is used to detect the distribution of the amount of light of the discharge light in the surface of the optical film, it is possible to accurately predict the occurrence of the bonding failure due to insufficient adhesion between the films, which contributes to good manufacturing. The rate is improved.

以下說明放電電流密度及放電光。 The discharge current density and discharge light will be described below.

放電光係藉由由放電電極所被放出的荷電粒子、及氣體分子 的衝撞而產生。 The discharge light is charged particles and gas molecules emitted from the discharge electrode The collision occurred.

藉由提高放電電流，對更多的荷電粒子賦予能量(運動能量 與內部能量的和)。結果，荷電粒子與氣體分子的衝撞能量增加，伴隨此，放電光的光量亦增加。 Energy is added to more charged particles by increasing the discharge current (sports energy) And the sum of internal energy). As a result, the collision energy of the charged particles and the gas molecules increases, and as a result, the amount of light of the discharge light also increases.

能量平衡實質上以放電的能量=每1個荷電粒子的能量(運 動能量與內部能量的和)×荷電粒子數+放射+熱傳導表示。 The energy balance is essentially the energy of the discharge = the energy of each charged particle (transport The sum of kinetic energy and internal energy) × number of charged particles + radiation + heat conduction.

由於若電流變大，電力亦會變大，因此假設平均的每1個荷 電粒子的能量(≒溫度)為一定，則能量更大的荷電粒子會增加，因此放射會增加。實際上，若加大電流時，溫度會因加熱而改變，因此荷電粒子 的內部能量會改變。藉此，放射變大，同時熱傳導亦變大。 Since the electric power will become larger if the current becomes larger, it is assumed that every one load is averaged. When the energy (≒ temperature) of the electric particles is constant, the charged particles with larger energy increase, and thus the radiation increases. In fact, if the current is increased, the temperature will change due to heating, so the charged particles The internal energy will change. Thereby, the radiation becomes large and the heat conduction also becomes large.

來自物質的放射能量密度係有與溫度的4次方成正比的斯特凡-波茲曼定律(Stefan-Boltzmann's law)。放射係將包含人感覺為光的可見光區域的所有頻譜相加後的全部放射能量，因此並無法全部轉換成僅為人所感覺的可見光或CCD元件的分光感度區域的發光。由於為能量密度，放射的總量係與發光體的表面積成正比。 The radiant energy density from the substance is Stefan-Boltzmann's law, which is proportional to the fourth power of the temperature. The radiation system includes all of the radiation energy obtained by adding all the spectrums of the visible light region that the human feels to be light, and therefore cannot be converted into light of only the visible light or the spectral sensitivity region of the CCD element that is perceived by humans. Due to the energy density, the total amount of radiation is proportional to the surface area of the illuminant.

因此，發光量與電流或電流密度成正比，或與平方成正比等並非能量全被轉換成發光，因此並無法以關係式單義地表示。 Therefore, the amount of luminescence is proportional to the current or current density, or proportional to the square, etc., and not all of the energy is converted into luminescence, and therefore cannot be expressed univocally in a relational expression.

放電光的光量的資訊係與光學膜的長邊方向及寬度方向的位置資訊產生關連地被記憶在DCS6的記憶部及檢査裝置4的各個來作為例如畫像圖。藉此，在後述之貼合系統中，可輕易地將放電光的光量未被控制在適當範圍的部分(在電暈放電發生異常，且表面改質未被適當進行的部分：異常部分)去除，且將放電光的光量被控制在適當範圍的部分(在電暈放電未發生異常，表面改質被適當進行的部分：無異常的部分)使用在製品。 The information on the amount of light of the discharge light is stored in the memory portion of the DCS 6 and the inspection device 4 in association with the position information in the longitudinal direction and the width direction of the optical film as, for example, an image. Thereby, in the bonding system described later, the portion where the amount of light of the discharge light is not controlled in an appropriate range (the portion where the corona discharge is abnormal and the surface modification is not properly performed: the abnormal portion) can be easily removed. In the part where the amount of light of the discharge light is controlled to an appropriate range (the portion where the surface modification is not performed abnormally, the portion where the surface modification is appropriately performed: the portion having no abnormality) is used in the product.

其中，在後述之貼合系統中，亦可未去除放電光的光量未被控制在適當範圍的部分(異常部分)地，即使有異常部分，亦暫且未設為不良，而將最終製品進行重點檢査，來在品質上確認是否有問題。 In the bonding system to be described later, the portion where the amount of light of the discharge light is not controlled in an appropriate range (abnormal portion) may not be removed, and even if there is an abnormal portion, the final product is not focused. Check to see if there is a problem with the quality.

接著，說明藉由本實施形態之檢査裝置4所為之電暈放電的放電光的光量的檢査。 Next, the inspection of the amount of light of the discharge light by the corona discharge of the inspection apparatus 4 of the present embodiment will be described.

第四A圖、第四B圖係顯示將放電輸出設定為800W時的光學膜的寬度方向的位置與光量位準的關係圖。 The fourth A map and the fourth B graph show a relationship between the position in the width direction of the optical film and the light amount level when the discharge output is set to 800 W.

第四A圖係每999.9微秒實施掃描(資料的取入)，以一分鐘，亦即1000次/秒×60秒=60000次，將光量資料連續標繪(重寫)在同一圖表的圖。 The fourth A picture is scanned every 999.9 microseconds (data is taken in), and the light quantity data is continuously plotted (rewritten) in the same chart in one minute, that is, 1000 times/second×60 seconds=60000 times. .

第四B圖係顯示未重寫之1次掃描資料的圖。 The fourth B-picture shows a map of the unscanned one-time scan data.

在第四A圖、第四B圖中，橫軸係表示光學膜的寬度方向的位置，縱軸係將CCD攝影機40所接受到的電暈放電光的受光光量設為光量位準來表示。 In the fourth A map and the fourth B graph, the horizontal axis indicates the position in the width direction of the optical film, and the vertical axis indicates the amount of received light of the corona discharge light received by the CCD camera 40 as the light amount level.

在此，光量位準係指以256階調表示電暈放電光的受光光量者。其中，並非為CCD攝影機所接受到的電暈放電光的受光光量的資料，即所謂原始資料，而是根據對原始資料去除照明光等雜訊的影響後的資料(修正資料)來表示為光量位準。 Here, the light amount level means the amount of received light of the corona discharge light in 256-step modulation. Among them, the data of the amount of received light of the corona discharge light received by the CCD camera, that is, the so-called original data, is expressed as the amount of light based on the data (corrected data) after the influence of the noise on the original data is removed. Level.

第四A圖、第四B圖的橫軸係與2個CCD攝影機40之中1個CCD攝影機的視野寬幅(760mm)相對應，若以像素表示時，相當於4096pixel。第四A圖、第四B圖的縱軸均為256階調，在第四A圖中係將光量位準的下限值表示為0、上限值表示為255。 The horizontal axis of the fourth A map and the fourth B graph corresponds to the field of view width (760 mm) of one of the two CCD cameras 40, and corresponds to 4096 pixels when expressed in pixels. The vertical axes of the fourth A map and the fourth B graph are both 256-step keys. In the fourth A graph, the lower limit value of the light amount level is represented as 0, and the upper limit value is represented as 255.

如第四A圖、第四B圖所示，將放電輸出設定為800W時的光量位準的平均值係256階調的大致一半，為127。光量位準係在光學膜的寬度方向全部區域中，以一定程度變動。若觀看光學膜的寬度方向全部區域，光量位準的變動範圍係成為97~156。如第四A圖所示，光量位準的變動範圍係遍及光學膜的寬度方向全部區域而以帶狀擴展。 As shown in FIG. 4A and FIG. 4B, the average value of the light amount level when the discharge output is set to 800 W is approximately 1/2 of the 256-step tone, which is 127. The light amount level varies in a certain extent in the entire width direction of the optical film. When the entire width direction of the optical film is viewed, the range of the light amount level is 97 to 156. As shown in FIG. 4A, the fluctuation range of the light amount level spreads in a strip shape over the entire width direction of the optical film.

但是，光量位準的變動範圍依光學膜的寬度方向的位置而異。例如，在光學膜的寬度方向相當於像素600pixel的位置，光量位準的下 限值比其他位置為更低。亦即，在光學膜的寬度方向，電暈放電的放電電流密度變小，有光學膜的表面改質未被充分進行的可能性。 However, the range of variation of the light amount level varies depending on the position of the optical film in the width direction. For example, in the width direction of the optical film, it corresponds to a position of 600 pixels of the pixel, and the position of the light amount is under The limit is lower than the other positions. That is, in the width direction of the optical film, the discharge current density of the corona discharge is small, and there is a possibility that the surface modification of the optical film is not sufficiently performed.

在本實施形態中，藉由將臨限值設定在將放電輸出設定為 800W時的光量位準的上下，若光量位準包含在以上下臨限值所規定的範圍時，可判定為正常，若光量位準未包含在以上下臨限值所規定的範圍時，則可判定為異常。例如，將比光量位準的平均值127低50的值亦即77設定為臨限值，在光學膜的寬度方向中，光量位準的變動範圍的下限值包含在將臨限值設為下限的範圍時(與臨限值相同或高於臨限值時)，係將與臨限值相同或高於臨限值的部分判定為正常，若未包含在將臨限值設為下限的範圍時(低於臨限值時)，係將低於臨限值的部分判定為異常。 In the present embodiment, the threshold is set to set the discharge output to The upper and lower levels of the light amount at 800 W can be judged to be normal if the light level is included in the range specified by the upper and lower thresholds. If the light level is not included in the range specified by the above lower threshold, then Can be determined to be abnormal. For example, 77, which is a value lower than the average value 127 of the light amount level, is set to a threshold value of 77. In the width direction of the optical film, the lower limit value of the fluctuation range of the light amount level is included in the threshold value. For the range of the lower limit (when the threshold is the same as or higher than the threshold), the part with the same or higher than the threshold is judged as normal, and if it is not included in the lower limit In the range (below the threshold), the portion below the threshold is judged to be abnormal.

其中，不僅在光學膜的寬度方向，光量位準的變動範圍的下 限值低於臨限值的情形，當在光學膜的寬度方向，光量位準的變動範圍的上限值或平均值低於臨限值的情形下，亦可將低於臨限值的部分判定為異常。 Among them, not only in the width direction of the optical film, but also under the range of variation of the light amount level When the limit value is lower than the threshold value, when the upper limit value or the average value of the fluctuation range of the light amount level is lower than the threshold value in the width direction of the optical film, the portion below the threshold value may be used. It is judged to be abnormal.

關於放電光的光量的資訊係與關於光學膜的長邊方向及寬 度方向的位置的資訊產生關連地記憶在DCS6的記憶部。接著，在後述之貼合系統中，該等資訊由記憶部被讀出，光量位準被判定為異常的部分的光學膜作為不良部位而被切除，藉由回收裝置予以回收。藉此，抑制因電暈處理而起的貼合不良(因膜間的接著力不足而起的貼合不良)的發生，提供良率高的製造系統。 Information about the amount of light of the discharge light and the direction and width of the long side of the optical film The information of the position in the direction of the direction is stored in the memory of the DCS 6 in a related manner. Next, in the bonding system described later, the information is read by the memory unit, and the optical film in the portion where the light amount level is determined to be abnormal is cut off as a defective portion, and is collected by the collecting device. Thereby, the occurrence of poor bonding due to corona treatment (a poor bonding due to insufficient adhesion between the films) is suppressed, and a manufacturing system having a high yield is provided.

如以上說明所示，藉由本實施形態之光學膜之製造裝置1，可藉由檢査裝置4，來檢查光學膜的面內的電暈放電的放電光的分布。根據 本發明人的檢討，在放電光的分布與放電電流密度的分布之間係有高相關，而且在放電電流密度與表面改質的強度(膜間的接著力)之間有高相關。因此，藉由求出放電光的分布，在液晶面板貼合光學膜之前，可進行因膜間的接著力不足而起的貼合不良的發生部位的預測，可有助於製造良率的提升。 As described above, with the optical film manufacturing apparatus 1 of the present embodiment, the distribution of the discharge light of the corona discharge in the plane of the optical film can be inspected by the inspection device 4. according to The review by the present inventors has a high correlation between the distribution of the discharge light and the distribution of the discharge current density, and a high correlation between the discharge current density and the strength of the surface modification (the adhesion between the films). Therefore, by estimating the distribution of the discharge light, before the optical film is bonded to the liquid crystal panel, it is possible to predict the occurrence of the bonding failure due to insufficient adhesion between the films, which contributes to the improvement of the manufacturing yield. .

此外，由於檢査裝置4具備有接受電暈放電光的CCD攝影機 40，因此可即時檢查電暈放電的放電光的光量。此外，根據該構成，不需要另外檢查已施行電暈處理的光學膜的表面的潤濕性。因此，可簡單且迅速地確認在光學膜的表面是否已均一進行電暈處理。 In addition, since the inspection device 4 is provided with a CCD camera that receives corona discharge light 40, so the amount of light of the discharge light of the corona discharge can be checked immediately. Further, according to this configuration, it is not necessary to additionally check the wettability of the surface of the optical film on which the corona treatment has been performed. Therefore, it can be easily and quickly confirmed whether or not the corona treatment has been uniformly performed on the surface of the optical film.

其中，在本實施形態中，以一例而言，針對將放電輸出設定 為800W時的光學膜的寬度方向的位置與光量位準的關係加以說明，但是並非侷限於此。例如，放電輸出係其他亦可為1200W、1000W、600W、400W、300W、230W等，適當視需要來進行設定。如上所示在變更放電輸出之設定值的情形下，亦可適用本發明。 In the present embodiment, for example, the discharge output is set. The relationship between the position in the width direction of the optical film at 800 W and the amount of light amount will be described, but it is not limited thereto. For example, the discharge output system may be 1200W, 1000W, 600W, 400W, 300W, 230W, etc., and may be set as appropriate. The present invention can also be applied to the case where the set value of the discharge output is changed as described above.

(貼合系統) (fitting system)

以下一面參照圖示，一面說明本發明之一實施形態之貼合系統。 Hereinafter, a bonding system according to an embodiment of the present invention will be described with reference to the drawings.

第五圖係顯示本發明之一實施形態之貼合系統100的概略構成圖。 Fig. 5 is a schematic block diagram showing a bonding system 100 according to an embodiment of the present invention.

如第五圖所示，貼合系統100係具備有：上述實施形態之光學膜之製造裝置1(圖示省略)；判定電暈放電的放電光的光量是否包含在預定範圍內的判定裝置110；將藉由判定裝置110而被判定為未包含在預定 範圍內的部分作為不良部分而由光學膜切離，形成不存在不良部分的光學膜的切斷裝置106；回收不良部分的回收裝置107；及將不存在藉由切斷裝置106所形成的不良部分的光學膜貼合在貼合對象物的貼合裝置108。 As shown in FIG. 5, the bonding system 100 includes the optical film manufacturing apparatus 1 (not shown) of the above-described embodiment, and the determination device 110 that determines whether or not the amount of discharge light of the corona discharge is included in a predetermined range. ; will be determined by the determining device 110 not to be included in the reservation The portion in the range is cut off by the optical film as a defective portion, and the cutting device 106 for forming an optical film having no defective portion; the recovery device 107 for recovering the defective portion; and the defect formed by the cutting device 106 are not present A part of the optical film is bonded to the bonding apparatus 108 to which the object is bonded.

其中，在貼合系統100中，與關於光學膜的長邊方向及寬度 方向的位置的資訊產生關連地被記憶在DCS6(參照第一圖)的記憶部、記憶在檢査裝置4之關於放電光的光量的資訊(例如畫像圖)係可藉由判定裝置110來讀出。 Wherein, in the bonding system 100, with respect to the longitudinal direction and width of the optical film The information of the position of the direction is generated in the memory portion of the DCS 6 (refer to the first figure) and the information (for example, the image map) of the light amount of the discharge light stored in the inspection device 4 can be read by the determination device 110. .

貼合系統100係可在貼合區A1，例如在液晶面板或有機EL 面板等貼合對象物貼合偏光板或反射防止膜、光擴散膜等光學構件。藉此，貼合系統100係可製造包含貼合對象物及光學構件的裝置。貼合系統100亦可為製造上述裝置的製造系統的一部分或全部。 The bonding system 100 can be in the bonding area A1, such as in a liquid crystal panel or an organic EL An optical member such as a polarizing plate, an antireflection film, or a light diffusion film is bonded to a bonding object such as a panel. Thereby, the bonding system 100 can manufacture the apparatus containing the bonding object and the optical member. The bonding system 100 can also be part or all of the manufacturing system that manufactures the above described devices.

本實施形態之回收裝置107係可由包括光學構件的光學片材，將包含缺陷的部分的光學構件，由朝向貼合區A1的路徑排除且回收。亦即，貼合系統100係可將不含有缺陷的光學構件貼合在貼合對象物。在詳細說明貼合系統100之前，首先說明光學片材的構成例及液晶面板的構成例。 The recovery device 107 of the present embodiment can be obtained by removing the optical member including the optical member from the path toward the bonding area A1 by the optical member including the optical member. In other words, the bonding system 100 can bond an optical member that does not contain defects to the bonded object. Before describing the bonding system 100 in detail, first, a configuration example of an optical sheet and a configuration example of a liquid crystal panel will be described.

第六圖係顯示液晶面板的構成例的上視圖。在第六圖係圖示由液晶層的厚度方向作俯視的液晶面板。第六圖所示之液晶面板P係具備有：第1基板P1；與第1基板P1相對向配置的第2基板P2；及被封入在第1基板P1與第2基板P2之間的液晶層P3。液晶面板P係容納在作俯視的液晶層P3的外周的內側的範圍成為顯示區域P4。 The sixth drawing is a top view showing a configuration example of the liquid crystal panel. In the sixth diagram, a liquid crystal panel which is viewed from the thickness direction of the liquid crystal layer is illustrated. The liquid crystal panel P shown in FIG. 6 includes a first substrate P1, a second substrate P2 disposed to face the first substrate P1, and a liquid crystal layer sealed between the first substrate P1 and the second substrate P2. P3. The range in which the liquid crystal panel P is housed inside the outer periphery of the liquid crystal layer P3 in plan view is the display region P4.

第七圖係顯示光學片材的構成例的剖面圖。本例之光學片材 為長形的帶狀，與光學片材的長邊方向呈正交的剖面圖示於第七圖。在以下說明中，係有將光學片材的長邊方向僅稱為長邊方向的情形。 The seventh drawing is a cross-sectional view showing a configuration example of an optical sheet. Optical sheet of this example In the shape of an elongated strip, a cross-sectional view orthogonal to the longitudinal direction of the optical sheet is shown in the seventh diagram. In the following description, the longitudinal direction of the optical sheet is simply referred to as a longitudinal direction.

第七圖所示之光學片材F係具有：膜狀的光學構件F1；設在光學構件F1的其中一面的黏著層F2；隔著黏著層F2而可與光學構件F1分離地予以積層的隔離件F3；及設在光學構件F1的另一面的表面保護膜F4。 The optical sheet F shown in Fig. 7 has a film-shaped optical member F1, an adhesive layer F2 provided on one surface of the optical member F1, and a layer which can be separated from the optical member F1 via the adhesive layer F2. F3; and a surface protective film F4 provided on the other surface of the optical member F1.

本例之光學片材F的光學構件F1係作為偏光板來發揮功能，遍及液晶面板P的顯示區域P4的全部區域及顯示區域P4的周邊區域予以貼合。 The optical member F1 of the optical sheet F of this example functions as a polarizing plate, and is bonded to the entire area of the display area P4 of the liquid crystal panel P and the peripheral area of the display area P4.

光學構件F1係在一面在光學構件F1的表面殘留黏著層F2，一面隔離件F3由黏著層F2被分離的狀態下，透過黏著層F2而被貼合在貼合對象物。隔離件F3係在至由黏著層F2被分離為止的期間，保護黏著層F2及光學構件F1。表面保護膜F4係連同光學構件F1一起被貼合在貼合對象物，相對光學構件F1被配置在貼合對象物的相反側。本例之表面保護膜F4係以適當選擇的時序由光學構件F1分離。表面保護膜F4係在至由光學構件F1被分離為止的期間，保護光學構件F1。 In the optical member F1, the adhesive layer F2 remains on the surface of the optical member F1, and the spacer F3 is bonded to the object to be bonded through the adhesive layer F2 while the spacer F3 is separated by the adhesive layer F2. The spacer F3 protects the adhesive layer F2 and the optical member F1 while being separated from the adhesive layer F2. The surface protective film F4 is bonded to the bonded object together with the optical member F1, and is disposed on the opposite side of the bonded object with respect to the optical member F1. The surface protective film F4 of this example is separated by the optical member F1 at an appropriately selected timing. The surface protective film F4 protects the optical member F1 until it is separated by the optical member F1.

其中，光學構件F1亦可未包含表面保護膜F4。此外，表面保護膜F4亦可未從光學構件F1分離。在以下說明中，有時將由光學片材F除了隔離件F3之外的部分稱為貼合片材F5。 The optical member F1 may not include the surface protective film F4. Further, the surface protective film F4 may not be separated from the optical member F1. In the following description, a portion other than the spacer F3 of the optical sheet F is sometimes referred to as a bonded sheet F5.

光學構件F1係具有：偏光片膜F6；以接著劑等被接合在偏光片膜F6的其中一面的第1膜F7；及以接著劑等被接合在偏光片膜F6的另一面的第2膜F8。本實施形態之偏光片膜F6係相當於針對以上述光學膜之製造裝置1所製造的處理完畢膜Fb，另外在膜背面施行電暈處理者，亦即在膜表 背面施行電暈處理者。第1膜F7與第2膜F8係保護偏光片膜F6的保護膜。 The optical member F1 includes a polarizer film F6, a first film F7 bonded to one surface of the polarizer film F6 by an adhesive or the like, and a second film bonded to the other surface of the polarizer film F6 with an adhesive or the like. F8. The polarizer film F6 of the present embodiment corresponds to the processed film Fb manufactured by the optical film manufacturing apparatus 1 and is subjected to corona treatment on the back surface of the film, that is, in the film table. The corona treatment is performed on the back. The first film F7 and the second film F8 protect the protective film of the polarizer film F6.

其中，光學構件F1可為由1層光學層所成之單層構造，亦可 為複數光學層互相積層的積層構造。光學層係除了上述偏光片膜F6以外，亦可為相位差膜或亮度提升膜等。第1膜F7與第2膜F8的至少一者亦可施行可得包含保護液晶顯示元件的最外面的硬敷處理或防眩光(Anti-Glare)處理的防眩等效果的表面處理。此外，第1膜F7與第2膜F8的至少一者亦可未設置。例如，光學片材F亦可為省略第1膜F7，隔離件F3透過黏著層F2而被貼合在光學構件F1的其中一面的構造。 The optical member F1 may be a single layer structure formed by one optical layer, or A laminated structure in which a plurality of optical layers are laminated to each other. The optical layer may be a retardation film, a brightness enhancement film, or the like in addition to the polarizer film F6. At least one of the first film F7 and the second film F8 may be subjected to a surface treatment including an effect of preventing the glare of the outermost hard coating treatment or the anti-glare treatment for protecting the liquid crystal display element. Further, at least one of the first film F7 and the second film F8 may not be provided. For example, the optical sheet F may have a structure in which the first film F7 is omitted and the spacer F3 is bonded to one surface of the optical member F1 through the adhesive layer F2.

接著，詳加說明本實施形態之貼合系統100。 Next, the bonding system 100 of this embodiment will be described in detail.

第五圖所示之貼合系統100係一面搬送光學片材F，一面檢測光學構件F1的缺陷，藉由將光學片材F進行半切而在長邊方向的複數位置形成切割線，可形成藉由切割線而朝長邊方向被區劃的複數片材片。 The bonding system 100 shown in FIG. 5 can detect the defect of the optical member F1 while conveying the optical sheet F, and can form a cutting line at a plurality of positions in the longitudinal direction by half-cutting the optical sheet F. A plurality of sheet pieces that are divided by the cutting line toward the long side direction.

其中，關於電暈放電的放電光的光量未包含在預定範圍內的不良部分，係根據上述實施形態中所說明的畫像圖來進行檢測。 Here, the defective portion of the discharge light of the corona discharge is not included in the predetermined range, and is detected based on the image map described in the above embodiment.

貼合系統100係可在複數片材片之中，將光學構件F1未含有缺陷的良品片材片F10的貼合片材、及由液晶顯示元件的製造線的上游被搬送而來的各液晶面板P在貼合區A1進行貼合。貼合系統100係可在複數片材片之中，將光學構件F1含有缺陷的不良品片材片F13，無須將不良品片材片13的貼合片材與液晶面板P相貼合來進行回收。 The bonding system 100 is a laminated sheet of a good sheet sheet F10 in which the optical member F1 does not contain defects among the plurality of sheet sheets, and each liquid crystal conveyed from the upstream of the manufacturing line of the liquid crystal display element. The panel P is bonded in the bonding area A1. In the bonding system 100, the defective sheet sheet F13 containing the defect in the optical member F1 can be bonded to the liquid crystal panel P without the bonding sheet of the defective sheet member 13 being bonded to the liquid crystal panel P. Recycling.

在本實施形態中，液晶面板P係一面朝與顯示區域P4的長邊呈平行的方向搬送，一面與和液晶面板P呈平行被搬送的光學構件F1相貼合。與光學片材的長邊方向呈正交的寬度方向的尺寸係被設定為例如液晶 面板P的顯示區域P4的短邊的長度以上、與顯示區域P4的短邊呈平行的方向的液晶面板P的外寸以下。與液晶面板相貼合的片材片的長邊方向的長度(以下有時稱為單位長度)係被設定為例如液晶面板P的顯示區域P4的長邊的尺寸以上、與顯示區域P4的長邊呈平行的方向的液晶面板P的外寸以下。 In the present embodiment, the liquid crystal panel P is conveyed in a direction parallel to the long side of the display region P4, and is bonded to the optical member F1 that is conveyed in parallel with the liquid crystal panel P. The dimension in the width direction orthogonal to the longitudinal direction of the optical sheet is set to, for example, liquid crystal The length of the short side of the display region P4 of the panel P is equal to or larger than the outer dimension of the liquid crystal panel P in the direction parallel to the short side of the display region P4. The length of the longitudinal direction of the sheet piece to be bonded to the liquid crystal panel (hereinafter sometimes referred to as the unit length) is set to, for example, the length of the long side of the display region P4 of the liquid crystal panel P, and is longer than the display area P4. The sides of the liquid crystal panel P in the parallel direction are below the outer inch.

其中，貼合系統100亦可為朝與顯示區域P4的短邊呈平行的 方向搬送液晶面板P，和與液晶面板P呈平行被搬送的光學構件F1相貼合的態樣。在該態樣中，光學片材F的寬度方向的尺寸及上述單位長度係按照液晶面板P的顯示區域P4的短邊的尺寸或長邊的尺寸等來作適當變更。 Wherein, the bonding system 100 can also be parallel to the short side of the display area P4. The liquid crystal panel P is conveyed in the direction and adhered to the optical member F1 conveyed in parallel with the liquid crystal panel P. In this aspect, the dimension of the optical sheet F in the width direction and the unit length are appropriately changed in accordance with the size of the short side of the display region P4 of the liquid crystal panel P or the size of the long side.

貼合系統100係具備有由捲繞有光學片材F的滾筒R送出光 學片材F，可朝長邊方向搬送光學片材F之中的至少隔離件F3的搬送裝置101。搬送裝置101係將隔離件F3作為載體，連同隔離件F3一起搬送貼合片材F5。 The bonding system 100 is provided with light emitted from a roller R around which an optical sheet F is wound The sheet F is conveyed to convey the conveyance device 101 of at least the spacer F3 among the optical sheets F in the longitudinal direction. The conveying device 101 carries the separator F3 as a carrier, and conveys the bonding sheet F5 together with the spacer F3.

搬送裝置101係具備有：相當於隔離件F3的搬送路徑(以下 有時僅稱為搬送路徑)的始點的光學片材供給部102；相當於搬送路徑的終點的捲繞機103；在光學片材供給部102與捲繞機103之間形成隔離件F3的搬送路徑的複數滾輪；及設在複數滾輪之至少1個的測長器104。在以下說明中，有時對搬送路徑上的任意位置，將接近搬送路徑之始點(光學片材供給部102)之側稱為上游側，將接近搬送路徑之終點(捲繞機103)之側稱為下游側。 The transport device 101 is provided with a transport path corresponding to the spacer F3 (below The optical sheet supply unit 102 at the start point of the transport path only; the winder 103 corresponding to the end point of the transport path; and the spacer F3 formed between the optical sheet supply unit 102 and the winder 103 a plurality of rollers of the transport path; and a length measuring device 104 provided on at least one of the plurality of rollers. In the following description, the side closer to the start point of the transport path (the optical sheet supply unit 102) is referred to as the upstream side at any position on the transport path, and the end point of the transport path (winder 103) may be approached. The side is called the downstream side.

本實施形態之貼合系統100係具備有對被配置在搬送路徑且 搬送中的光學片材F施行處理的複數裝置。貼合系統100係具備有：被配置在比光學片材供給部102更為搬送路徑的下游側，來檢測光學構件F1之缺陷 的檢測裝置105；被配置在比檢測裝置105更為搬送路徑的下游側而對光學片材F施行半切的切斷裝置106；被配置在比切斷裝置106更為搬送路徑的下游側的回收裝置107；被配置在貼合區A1的貼合裝置108；及控制貼合系統100之各部的控制裝置109。其中，在控制裝置109係包含有判定裝置110。 The bonding system 100 of the present embodiment includes a pair of pairs disposed on the transport path and A plurality of devices for performing processing on the optical sheet F being conveyed. The bonding system 100 is provided to be disposed on the downstream side of the transport path of the optical sheet supply unit 102 to detect the defect of the optical member F1. The detecting device 105; the cutting device 106 that is disposed on the downstream side of the conveying path of the detecting device 105 and that half-cuts the optical sheet F; and the recycling device that is disposed on the downstream side of the conveying path of the cutting device 106 The device 107; the bonding device 108 disposed in the bonding area A1; and the control device 109 that controls each part of the bonding system 100. Among them, the control device 109 includes the determination device 110.

搬送裝置101的光學片材供給部102係藉由可保持滾筒R來使其旋轉，且由滾筒R對搬送路徑送出光學片材F的送出機所構成。捲繞機103係若光學構件F1與隔離件F3呈分離時，實質上僅回收隔離件F3。捲繞機103係若光學構件F1與隔離件F3未分離時，則回收隔離件F3及貼合片材F5。 The optical sheet supply unit 102 of the transport device 101 is configured by a feeder that can hold the drum R and rotate the roller R to feed the optical sheet F to the transport path. When the winder 103 separates the optical member F1 from the spacer F3, substantially only the spacer F3 is recovered. In the winder 103, when the optical member F1 and the separator F3 are not separated, the separator F3 and the bonded sheet F5 are recovered.

複數滾輪係藉由跨接光學片材F之中的至少隔離件F3，而形成搬送路徑。複數滾輪係藉由選自可調整使搬送中的光學片材F的進行方向改變的滾輪或搬送中的光學片材F的張力的滾輪等的滾輪所構成。 The plurality of rollers form a transport path by bridging at least the spacer F3 among the optical sheets F. The plurality of rollers are composed of a roller selected from a roller or the like that can adjust the direction in which the optical sheet F is conveyed during conveyance or the tension of the optical sheet F being conveyed.

測長器104係可根據安裝有測長器104的滾輪的旋轉角及外周的長度，來測定搬送光學片材F的距離(搬送距離)。測長器104的測定結果係被輸出至控制裝置109。控制裝置109係根據測長器104的測定結果，生成表示在正在搬送光學片材F的期間的任意時刻，光學片材F的長邊方向的各點是否存在於搬送路徑上的任何位置的片材位置資訊。 The length measuring device 104 measures the distance (transport distance) of the transport optical sheet F based on the rotation angle of the roller on which the length measuring device 104 is attached and the length of the outer circumference. The measurement result of the length measuring device 104 is output to the control device 109. The control device 109 generates a slice indicating whether or not each point in the longitudinal direction of the optical sheet F exists at any position on the transport path at any time during the period in which the optical sheet F is being transported, based on the measurement result of the length measuring device 104. Material location information.

其中，搬送裝置101的構成係以可在預定的搬送路徑搬送光學片材的方式作適當變更。此外，測長器104亦可根據搬送距離的測定結果來生成上述片材位置資訊，將所生成的片材位置資訊輸出至控制裝置109。亦可測長器104生成片材位置資訊，控制裝置109未生成片材位置資訊。 In addition, the configuration of the conveying device 101 is appropriately changed so that the optical sheet can be conveyed on a predetermined conveyance path. Further, the length measuring device 104 may generate the sheet position information based on the measurement result of the conveyance distance, and output the generated sheet position information to the control device 109. The length measuring device 104 may also generate sheet position information, and the control device 109 does not generate sheet position information.

檢測裝置105係可檢測內在搬送中的光學片材F的光學構件F1的缺陷。本實施形態之檢測裝置105係可對搬送中的光學片材F，執行反 射檢査、透過檢査、斜向透過檢査、正交尼可耳稜鏡(crossed Nichol prism)透過檢査等檢査處理，藉此來檢測光學構件F1的缺陷。 The detecting device 105 is capable of detecting defects of the optical member F1 of the optical sheet F that is being transported intrinsically. The detecting device 105 of the present embodiment can perform an inverse on the optical sheet F being transported. The inspection of the optical member F1 is detected by an inspection process such as a shot inspection, a transmission inspection, an oblique transmission inspection, and a crossed Nichol prism.

檢測裝置105係具備有：可對光學片材F照射光的照明部111；及可檢測由照明部111被照射而經由(反射與透射的其中一方或雙方)光學構件F1的光的光學構件F1中因有無缺陷所致之變化的光檢測器112。光學構件F1的缺陷係例如在光學構件F1的內部存在由固體、液體、及氣體的至少1個所成之異物的部分、或在光學構件F1的表面存在凹凸或損傷的部分、因光學構件F1的變形或材質的偏頗等而形成為亮點的部分等。 The detecting device 105 includes an illuminating unit 111 that can illuminate the optical sheet F, and an optical member F1 that can detect light that is irradiated by the illuminating unit 111 via one or both of the reflective and transmissive optical members F1. The photodetector 112 is changed due to the presence or absence of a defect. The defect of the optical member F1 is a portion in which at least one of a solid, a liquid, and a gas is formed inside the optical member F1, or a portion where the surface of the optical member F1 is uneven or damaged, and the optical member F1 is present. A part of a bright spot formed by a deformation or a bias of a material.

照明部111係可按照在如上所述之檢測裝置105所進行之檢査的種類，來照射經調整光強度或波長、偏光狀態等的光。本實施形態之光檢測器112係由CCD等攝像元件所構成，可對藉由照明部111而被照射光的部分的光學片材F進行攝像。光檢測器112的檢測結果(攝像結果)係被輸出至控制裝置109。控制裝置109係可對藉由光檢測器112所攝像到的畫像進行解析，來判定有無缺陷。控制裝置109係當判定出在光學構件F1存在缺陷時，參照測長器104的測定結果，生成表示缺陷在光學片材F上的位置的缺陷位置資訊。其中，在缺陷位置資訊係包含藉由控制裝置109來參照判定裝置110的判定結果，藉此所生成之表示電暈放電的放電光的光量未包含在預定範圍內的不良部分(異常)在光學片材F上的位置的異常位置資訊。 The illuminating unit 111 can illuminate the light of the adjusted light intensity, the wavelength, the polarization state, or the like according to the type of inspection performed by the detecting device 105 as described above. The photodetector 112 of the present embodiment is constituted by an imaging element such as a CCD, and can image an optical sheet F of a portion irradiated with light by the illumination unit 111. The detection result (imaging result) of the photodetector 112 is output to the control device 109. The control device 109 can analyze the image captured by the photodetector 112 to determine whether or not there is a defect. When it is determined that there is a defect in the optical member F1, the control device 109 refers to the measurement result of the length measuring device 104, and generates defect position information indicating the position of the defect on the optical sheet F. The defect position information includes a determination result of the determination device 110 by the control device 109, whereby the generated light amount of the discharge light indicating the corona discharge is not included in the predetermined range (abnormality) in the optical Abnormal position information of the position on the sheet F.

切斷裝置106係遍及與光學片材F的長邊方向呈正交的寬度方向的總寬幅，將光學片材F的厚度方向的一部分遍及寬度方向進行切斷(有時稱為半切(half cut))，而形成切割線。切割線係形成在光學片材F的長邊方向的複數位置。光學片材F係藉由複數切割線而朝長邊方向被區劃， 朝長邊方向相鄰的1對切割線所夾著的區劃的各個即成為1個片材片。 The cutting device 106 has a total width in the width direction orthogonal to the longitudinal direction of the optical sheet F, and cuts a part of the thickness direction of the optical sheet F in the width direction (sometimes called half cut (half) Cut)), forming a cutting line. The cutting line is formed at a plurality of positions in the longitudinal direction of the optical sheet F. The optical sheet F is divided toward the long side by a plurality of cutting lines. Each of the divisions sandwiched by the pair of cutting lines adjacent to each other in the longitudinal direction becomes one sheet piece.

控制裝置109係參照上述的缺陷位置資訊，由藉由切斷裝置106所形成的第1切割線，判定在相當於光學構件F1的長邊方向的單位長度的區間(以下有時稱為接下來的片材片的區間)是否存在有光學構件F1的缺陷。控制裝置109係按照在接下來的片材片的區間是否存在缺陷，來決定接下來形成的切割線的位置，且生成表示切割線在光學片材F上的形成位置的切割線位置資訊。 The control device 109 refers to the above-described defect position information, and determines a section corresponding to the unit length in the longitudinal direction of the optical member F1 by the first cutting line formed by the cutting device 106 (hereinafter referred to as the following) Whether there is a defect of the optical member F1 in the section of the sheet piece). The control device 109 determines the position of the cutting line to be formed next in accordance with whether or not there is a defect in the section of the next sheet piece, and generates cutting line position information indicating the formation position of the cutting line on the optical sheet F.

控制裝置109係當判定出在接下來的片材片的區間不存在缺陷時，以由前次形成的切割線(以下有時稱為第1切割線L1)，至接下來形成的切割線(以下有時稱為第2切割線L2)為止的光學片材F上的距離成為上述單位長度的方式，決定第2切割線L2的形成位置。控制裝置109係以在由形成有第1切割線L1的位置，以單位長度搬送光學片材F的時序，切斷裝置106形成第2切割線L2的方式，控制切斷裝置106。 When the control device 109 determines that there is no defect in the section of the next sheet piece, the cutting line formed by the previous cutting line (hereinafter sometimes referred to as the first cutting line L1) is formed to the cutting line formed next ( Hereinafter, the distance on the optical sheet F until the second cutting line L2) is referred to as the unit length, and the formation position of the second cutting line L2 is determined. The control device 109 controls the cutting device 106 such that the cutting device 106 forms the second cutting line L2 at the timing at which the optical sheet F is conveyed per unit length at the position where the first cutting line L1 is formed.

由第1切割線L1至第2切割線L2的區間的光學片材F係成為具有隔離件F3、及包含未含有缺陷的光學構件F1(良品光學構件)的良品貼合片材的良品片材片F10。 The optical sheet F in the section from the first cutting line L1 to the second cutting line L2 is a good sheet having the separator F3 and the good laminated sheet including the optical member F1 (good optical member) not containing the defect. Slice F10.

控制裝置109係當判定出在接下來的片材片的區間存在光學構件F1的缺陷時，在比缺陷更為搬送路徑的上游側，決定切割線(以下有時稱為第3切割線L3)的形成位置。控制裝置109係以在比缺陷更為搬送路徑的上游側，切斷裝置106形成第3切割線L3的方式控制切斷裝置106。 When it is determined that there is a defect of the optical member F1 in the section of the next sheet piece, the control device 109 determines the cutting line on the upstream side of the transport path (hereinafter sometimes referred to as the third cutting line L3). The location of the formation. The control device 109 controls the cutting device 106 such that the cutting device 106 forms the third cutting line L3 on the upstream side of the transport path than the defect.

由第1切割線L1至第3切割線L3之區間的光學片材F係成為具有隔離件F3、及包含含有缺陷的光學構件F1(不良品光學構件)的不良 品貼合片材的不良品片材片F13。 The optical sheet F in the section from the first cutting line L1 to the third cutting line L3 has a separator F3 and a defect including the optical member F1 (defective optical member) containing the defect. The defective sheet sheet F13 of the sheet is bonded.

本實施形態之貼合系統100係具備有可將與良品貼合片材相貼合的液晶面板P搬送至貼合區A1的面板搬送裝置113。面板搬送裝置113係具備有：可保持液晶面板P的面板保持部114；對貼合系統100，可由被搬入液晶面板P的搬入區至貼合區A1移動面板保持部114的面板移動部115；及可在貼合區A1，以預定方向運送液晶面板P的輸送器116。在本實施形態中，面板搬送裝置113的各部係被控制裝置109控制動作時序等。 The bonding system 100 of the present embodiment includes a panel transport device 113 that can transport the liquid crystal panel P bonded to the good-bonding sheet to the bonding area A1. The panel transport device 113 includes a panel holding portion 114 that can hold the liquid crystal panel P, and a panel moving portion 115 that can move the panel holding portion 114 into the bonding system 100 by the loading region of the liquid crystal panel P; And a conveyor 116 that can transport the liquid crystal panel P in a predetermined direction in the bonding area A1. In the present embodiment, each unit of the panel transport device 113 is controlled by the control device 109 to control the operation timing and the like.

面板保持部114係將由液晶顯示元件的製造線的上游，藉由輸送器等被搬運至搬入區的液晶面板P，藉由控制裝置109進行控制，藉由真空吸附等而以可安裝卸下的方式進行保持。面板移動部115係可對輸送器116，以垂直方向及水平方向移動面板保持部114。面板移動部115係可在液晶面板P被保持在面板保持部114的狀態下，將面板保持部114由搬入區移動至貼合區A1，實質上將液晶面板P移動至貼合區A1。 The panel holding portion 114 is transported to the liquid crystal panel P of the loading area by a conveyor or the like upstream of the manufacturing line of the liquid crystal display element, and is controlled by the control device 109 to be mounted and detached by vacuum suction or the like. Way to keep. The panel moving portion 115 moves the panel holding portion 114 in the vertical direction and the horizontal direction to the conveyor 116. In the state in which the liquid crystal panel P is held by the panel holding portion 114, the panel holding portion 115 moves the panel holding portion 114 from the loading area to the bonding area A1, and substantially moves the liquid crystal panel P to the bonding area A1.

面板保持部114係被控制裝置109所控制，可在貼合區A1解除液晶面板P的吸附，而將液晶面板P交付至輸送器116。輸送器116係可以將被搬運至貼合區A1為止的液晶面板P、及被搬運至貼合區A1而與液晶面板P相貼合的良品貼合片材彼此互相對位的方式，對貼合裝置108供給液晶面板P。面板移動部115及輸送器116係以藉由切斷裝置106所形成的良品片材片F10被搬運至貼合區A1的時序，液晶面板P到達貼合區A1的方式，藉由控制裝置109進行控制。 The panel holding portion 114 is controlled by the control device 109, and the liquid crystal panel P can be discharged to the conveyor 116 by releasing the suction of the liquid crystal panel P in the bonding area A1. The conveyor 116 can align the liquid crystal panel P that has been transported to the bonding area A1 and the good quality bonding sheet that is conveyed to the bonding area A1 and is bonded to the liquid crystal panel P. The bonding device 108 supplies the liquid crystal panel P. The panel moving unit 115 and the conveyor 116 are conveyed to the bonding area A1 by the quality sheet piece F10 formed by the cutting device 106, and the liquid crystal panel P reaches the bonding area A1 by the control device 109. Take control.

本實施形態之回收裝置107係將良品片材片F10之中的良品貼合片材與隔離件F3互相分離。貼合裝置108係將與隔離件F3呈分離的良品 貼合片材，與被搬送至貼合區A1的液晶面板P相貼合。回收裝置107係回收與良品貼合片材呈分離的隔離件F3。回收裝置107係將不良品片材片F13之中的不良品貼合片材連同隔離件F3一起回收。 In the collection device 107 of the present embodiment, the good product bonding sheet and the separator F3 in the good product sheet F10 are separated from each other. The bonding device 108 is a good product that will be separated from the spacer F3. The bonded sheet is bonded to the liquid crystal panel P conveyed to the bonding area A1. The recovery device 107 collects the separator F3 that is separated from the good-bonding sheet. The recovery device 107 collects the defective bonded sheet among the defective sheet F13 together with the separator F3.

回收裝置107係具備有：以隔離件F3為載體而將片材片捲繞在刀刃117來進行移送(搬送)的移送部；及判定被移送至刀刃117的片材片為不良品片材片F13、或為良品片材片F10的判定部。 The recovery device 107 includes a transfer unit that winds a sheet piece around the blade 117 by the spacer F3 as a carrier, and determines that the sheet piece transferred to the blade 117 is a defective piece piece. F13 or the determination part of the good sheet piece F10.

本實施形態之移送部係構成為包含有刀刃117、及在構成搬送裝置101的複數搬送滾輪之中連同刀刃117一起跨接隔離件F3的滾輪。連同刀刃117一起跨接隔離件F3的滾輪之中的1個為被配置在比刀刃117更為搬送路徑的下游側的導引滾輪118。 The transfer unit of the present embodiment is configured to include a blade 117 and a roller that bridges the spacer F3 together with the blade 117 among the plurality of transfer rollers constituting the transfer device 101. One of the rollers that bridge the spacer F3 together with the blade 117 is a guide roller 118 disposed on the downstream side of the transport path from the blade 117.

本實施形態之判定部係被包含在控制裝置109。本實施形態之判定部(控制裝置109)係根據上述片材位置資訊、缺陷位置資訊、及切割線位置資訊，來判定被搬送至刀刃117的片材片為不良品片材片F13或良品片材片F10。 The determination unit of the present embodiment is included in the control device 109. The determination unit (control device 109) of the present embodiment determines that the sheet piece conveyed to the blade 117 is a defective product sheet F13 or a good product based on the sheet position information, the defect position information, and the cutting line position information. Sheet F10.

在本實施形態中，被搬送至回收裝置107的光學片材F係一面使其單面與刀刃117的一面相對向，一面朝向前端部被搬送。隔離件F3係被跨接在前端部與導引滾輪118，朝向相對比前端部更為搬送路徑的下游側的部分的光學構件F1形成銳角的方向被搬送，藉此以前端部為支點而彎曲。藉此，隔離件F3係由長邊方向中的搬送路徑的下游側(第1切割線L1側)朝向上游側(第2切割線L2側)依序由良品貼合片材分離。與良品貼合片材呈分離的隔離件F3係透過導引滾輪118而被捲繞在捲繞機103予以回收。 In the present embodiment, the optical sheet F conveyed to the recovery device 107 is conveyed toward the distal end portion while facing the one surface of the blade 117 on one side. The spacer F3 is bridged between the tip end portion and the guide roller 118, and is conveyed in a direction in which the optical member F1 at a portion on the downstream side of the transport path is transported at an acute angle, thereby bending the tip end portion as a fulcrum. . In this way, the separator F3 is separated from the downstream side (the first cutting line L1 side) toward the upstream side (the second cutting line L2 side) by the downstream side (the second cutting line L2 side) in the longitudinal direction. The separator F3 separated from the good-bonding sheet is wound around the winding machine 103 and recovered by the guide roller 118.

本實施形態之貼合裝置108係具備有1對貼合滾輪119。被搬送至貼合區A1的液晶面板P係藉由輸送器116而被搬送在1對貼合滾輪119之間。 The bonding apparatus 108 of this embodiment is equipped with the pair of bonding roller 119. The liquid crystal panel P conveyed to the bonding area A1 is conveyed between the pair of bonding rollers 119 by the conveyor 116.

互相貼合的液晶面板P及良品貼合片材係以在貼合後互相接觸的各個的面互相平行且相對1對貼合滾輪119的旋轉軸呈平行的方式，被運送在1對貼合滾輪119之間。1對貼合滾輪119係在貼合處理中，將被運送至1對貼合滾輪119之間的液晶面板P及良品貼合片材夾入而彼此互相按壓來進行貼合。與良品貼合片材相貼合的液晶面板P係被搬送至液晶顯示元件的製造線的下游。如上所示執行貼合處理。 The liquid crystal panel P and the good quality bonding sheet which are bonded to each other are transported in a pair of bonding so that the respective surfaces which are in contact with each other after bonding are parallel to each other and are parallel to the rotation axis of the pair of bonding rollers 119. Between the rollers 119. In the bonding process, the pair of bonding rollers 119 are sandwiched between the liquid crystal panel P and the good bonding sheet that are transported between the pair of bonding rollers 119, and are pressed against each other to bond them. The liquid crystal panel P bonded to the good-quality bonded sheet is conveyed downstream of the manufacturing line of the liquid crystal display element. The bonding process is performed as shown above.

其中，經由刀刃117的前端部19的不良品貼合片材係連同隔離件F3一起經由導引滾輪118而被捲繞在捲繞機103，且與隔離件F3同樣地被回收。 In addition, the defective product bonding sheet via the tip end portion 19 of the blade 117 is wound around the winder 103 together with the spacer F3 via the guide roller 118, and is collected in the same manner as the spacer F3.

本實施形態之控制裝置109係構成為包含電腦系統。該電腦系統係具備有CPU等運算處理部、及記憶體或硬碟等記憶部。本實施形態之控制裝置109係包含可執行電腦系統與外部裝置的通訊的介面。在控制裝置109亦可連接可輸入輸入訊號的輸入裝置。上述輸入裝置係包含鍵盤、滑鼠等輸入機器、或者可輸入電腦系統之來自外部裝置的資料的通訊裝置等。控制裝置109係可包含顯示貼合系統100之各部的動作狀況的液晶顯示器等顯示裝置，亦可與顯示裝置相連接。 The control device 109 of the present embodiment is configured to include a computer system. The computer system includes an arithmetic processing unit such as a CPU, and a memory unit such as a memory or a hard disk. The control device 109 of the present embodiment includes an interface for enabling communication between the computer system and the external device. An input device to which an input signal can be input can also be connected to the control device 109. The input device includes an input device such as a keyboard or a mouse, or a communication device that can input data from an external device of the computer system. The control device 109 may include a display device such as a liquid crystal display that displays the operation status of each unit of the bonding system 100, and may be connected to the display device.

在控制裝置109的記憶部係被安裝有控制電腦系統的作業系統(OS)。在控制裝置109的記憶部係記錄有藉由使運算處理部控制貼合系統100的各部，來使貼合系統100的各部執行用以排除不良品片材片F13的處 理的程式。包含被記憶在記憶部的程式的各種資訊係可由控制裝置109的運算處理部讀取。控制裝置109亦可包含執行貼合系統100的各部的控制所需之各種處理的ASIC等邏輯電路。 An operating system (OS) for controlling the computer system is installed in the memory unit of the control device 109. In the memory unit of the control device 109, the arithmetic processing unit controls each unit of the bonding system 100 so that each unit of the bonding system 100 executes the portion for removing the defective product sheet F13. Rational program. Various information including a program stored in the memory unit can be read by the arithmetic processing unit of the control device 109. The control device 109 may also include a logic circuit such as an ASIC that performs various processes required for control of each unit of the bonding system 100.

記憶部係包含RAM(Random Access Memory，隨機存取記憶體)、ROM(Read Only Memory，唯讀記憶體)等半導體記憶體、或硬碟、CD-ROM讀取裝置、碟片型記憶媒體等外部記憶裝置等的概念。記憶部係在功能上設定有記憶記述有搬送裝置101、檢測裝置105、切斷裝置106、回收裝置107、判定裝置110、貼合裝置108的動作的控制順序的程式軟體的記憶區域等其他各種記憶區域。 The memory unit includes a semiconductor memory such as a RAM (Random Access Memory) or a ROM (Read Only Memory), or a hard disk, a CD-ROM reading device, a disk type memory medium, or the like. The concept of an external memory device or the like. The memory unit is functionally provided with various other types of memory such as a memory area in which the transfer device 101, the detection device 105, the cutting device 106, the recovery device 107, the determination device 110, and the bonding device 108 are controlled. Memory area.

如以上所示，本實施形態之回收裝置107係可有效去除光學構件F1的缺陷。此外，本實施形態之貼合系統100係可一面有效去除光學構件F1的缺陷，一面將未包含缺陷的光學構件F1(良品貼合片材)與貼合對象物相貼合。此外，本實施形態之回收方法係即使未使用有別於隔離件F3的其他去除用膜等，亦可去除不良品貼合片材，因此可有效去除光學構件F1的缺陷。 As described above, the recovery device 107 of the present embodiment can effectively remove the defects of the optical member F1. Further, in the bonding system 100 of the present embodiment, the optical member F1 (good bonding sheet) not containing the defect can be bonded to the bonding target while effectively removing the defect of the optical member F1. Further, in the collection method of the present embodiment, the defective bonded sheet can be removed without using another film for removal or the like different from the separator F3, so that the defects of the optical member F1 can be effectively removed.

其中，本發明之技術範圍並非限定於上述實施形態。在未脫離本發明之主旨的範圍內，可為各種變形。 However, the technical scope of the present invention is not limited to the above embodiment. Various modifications may be made without departing from the spirit and scope of the invention.

上述貼合系統100係藉由檢測裝置105來檢測光學構件F1的缺陷，但是亦可使用在搬送前預先被檢査的光學片材F，並且控制裝置109使用該檢査結果來進行是否為良品片材片F10的判定。上述檢査結果亦可以符號等形態而被形成在光學片材F，亦可作為例如表示來自滾筒R之長邊方向之端的缺陷的位置的資料而被輸入至控制裝置。如上所示，若使用預先 被檢査的光學片材F時，亦可省略檢測裝置105。 In the above-described bonding system 100, the defect of the optical member F1 is detected by the detecting device 105. However, the optical sheet F that has been inspected beforehand can be used, and the control device 109 uses the result of the inspection to determine whether it is a good sheet. Determination of slice F10. The inspection result may be formed in the optical sheet F in the form of a symbol or the like, or may be input to the control device as, for example, information indicating the position of the defect from the end of the longitudinal direction of the drum R. As shown above, if used in advance When the optical sheet F to be inspected, the detecting device 105 may be omitted.

此外，上述貼合系統100係由已被捲繞光學片材F的滾筒R送出光學片材F，但是搬送裝置101的光學片材供給部102亦可為光學片材F的製造裝置。該光學片材F的製造裝置可為貼合系統100的一部分，亦可為貼合系統100的外部的裝置。 Further, in the above-described bonding system 100, the optical sheet F is fed from the roller R to which the optical sheet F is wound, but the optical sheet supply unit 102 of the conveying device 101 may be a manufacturing device of the optical sheet F. The manufacturing apparatus of the optical sheet F may be a part of the bonding system 100 or may be an apparatus external to the bonding system 100.

以上一面參照所附圖示，一面說明本實施形態之適當實施形態例，但是本發明並非限定於該例，自不待言。在上述例中所示之各構成構件的各形狀或組合等為一例，在未脫離本發明之主旨的範圍內，可根據設計要求等來作各種變更。 Although an appropriate embodiment of the embodiment will be described above with reference to the drawings, the present invention is not limited to this example, and it goes without saying. The respective shapes, combinations, and the like of the respective constituent members shown in the above-described examples are merely examples, and various modifications can be made according to design requirements and the like without departing from the gist of the invention.

以下根據實施例，更具體說明本發明，惟本發明並非限定於以下實施例。 The present invention will be more specifically described below based on examples, but the present invention is not limited to the following examples.

(電暈處理裝置) (corona treatment device)

電暈處理裝置中的電極與處理滾筒的間隔係設定為1mm。以處理滾筒而言，係使用全長為1800mm者。 The interval between the electrode and the treatment drum in the corona treatment device was set to 1 mm. In the case of the treatment drum, a total length of 1800 mm is used.

(檢査裝置) (inspection device)

檢査裝置中的CCD攝影機係使用CCD線感測器攝影機。以CCD攝影機而言，係使用所使用的鏡頭為焦距24mm(f24)、開放值(F值)2.8、光圈4(1段光圈)、視野寬幅為約760mm、受光距離為約930mm、掃描率為999.9微秒者。 The CCD camera in the inspection device uses a CCD line sensor camera. In the case of a CCD camera, the lens used is a focal length of 24 mm (f24), an open value (F value) of 2.8, an aperture of 4 (one-stop aperture), a field of view width of about 760 mm, a light receiving distance of about 930 mm, and a scanning rate. For 999.9 microseconds.

其中，CCD攝影機係朝膜寬度方向配置2個。此外，CCD攝影機係使用膜寬度方向的解析度為100μm/pixel者。 Among them, the CCD camera is arranged in two in the film width direction. Further, the CCD camera uses a resolution of 100 μm/pixel in the film width direction.

(光學膜) (optical film)

以成為檢査對象的光學膜而言，係使用由PVA等所成之偏光片膜。以光學膜而言，係使用膜寬幅為1500mm者。 For the optical film to be inspected, a polarizer film made of PVA or the like is used. In the case of an optical film, a film having a width of 1500 mm is used.

(實施例) (Example)

實施例1的放電輸出係如第四圖所示設定為800W。實施例2的放電輸出係設定為1200W。實施例3的放電輸出係設定為1000W。實施例4的放電輸出係設定為600W。實施例5的放電輸出係設定為400W。實施例6的放電輸出係設定為300W。實施例7的放電輸出係設定為230W。 The discharge output of Example 1 was set to 800 W as shown in the fourth diagram. The discharge output of Example 2 was set to 1200 W. The discharge output of Example 3 was set to 1000 W. The discharge output of Example 4 was set to 600 W. The discharge output of Example 5 was set to 400 W. The discharge output of Example 6 was set to 300 W. The discharge output of Example 7 was set to 230 W.

(電暈放電的膜寬度方向中的不均的檢査) (Inspection of unevenness in the film width direction of corona discharge)

針對實施例2~7，分別調查光學膜的寬度方向的位置與光量位準的關係。針對實施例2~7，分別確認相對實施例1的放電輸出設定值，是否可得顯著差異。 With respect to Examples 2 to 7, the relationship between the position in the width direction of the optical film and the amount of light amount was examined. With respect to Examples 2 to 7, it was confirmed whether or not a significant difference was obtained with respect to the discharge output setting value of Example 1.

第八A圖、第八B圖係顯示實施例2中的光學膜的寬度方向的位置與光量位準的關係圖。 Figs. 8A and 8B are views showing the relationship between the position in the width direction of the optical film and the light amount level in the second embodiment.

第九A圖、第九B圖係顯示實施例3中的光學膜的寬度方向的位置與光量位準的關係圖。 FIGS. 9A and 9B are diagrams showing the relationship between the position in the width direction of the optical film and the light amount level in Example 3.

第十A圖、第十B圖係顯示實施例4中的光學膜的寬度方向的位置與光量位準的關係圖。 Tenth A and Tenth B are graphs showing the relationship between the position in the width direction of the optical film and the light amount level in Example 4.

第十一A圖、第十一B圖係顯示實施例5中的光學膜的寬度方向的位置與光量位準的關係圖。 11A and 11B are diagrams showing the relationship between the position in the width direction of the optical film and the light amount level in Example 5.

第十二A圖、第十二B圖係顯示實施例6中的光學膜的寬度方向的位置與光量位準的關係圖。 Twelfth A and Twelfth B are graphs showing the relationship between the position in the width direction of the optical film and the light amount level in Example 6.

第十三A圖、第十三B圖係顯示實施例7中的光學膜的寬度方 向的位置與光量位準的關係圖。 13th and 13th B show the width of the optical film in Example 7. A diagram of the position of the direction and the level of light.

第八A圖~第十三A圖係每隔999.9微秒實施掃描(資料的取入)，一分鐘，亦即1000次/秒×60秒=60000次，將光量資料連續標繪(重寫)在同一圖表的圖。 From the eighth picture A to the thirteenth A picture, the scanning is performed every 999.9 microseconds (the data is taken in), and one minute, that is, 1000 times/second×60 seconds=60000 times, the light quantity data is continuously plotted (rewritten) ) The diagram in the same chart.

第八B圖~第十三B圖係顯示未重寫的1次掃描資料的圖。 The eighth to thirteenth Bth drawings show the unscanned one-time scan data.

第八B圖~第十三B圖所示圖表係相當於第八A圖~第十三A圖所示之實線部分。 The graphs shown in Figs. 8B to 13B are equivalent to the solid line portions shown in Figs. 8A to 13A.

其中，在第八A圖及第九A圖中，為方便起見，一併圖示實施例1(放電輸出800W)中的光學膜的寬度方向的位置與光量位準的關係。 Here, in the eighth A map and the ninth graph, the relationship between the position in the width direction of the optical film and the light amount level in the first embodiment (discharge output 800 W) is shown together for the sake of convenience.

在第八A圖、第八B圖~第十三A圖、第十三B圖中係與第四A圖、第四B圖同樣地，係使用修正資料，而非使用原始資料。 In the eighth A diagram, the eighth B diagram, the thirteenth A diagram, and the thirteenth diagram B, the correction data is used instead of the original data, as in the fourth A diagram and the fourth B diagram.

在第八A圖、第八B圖~第十三A圖、第十三B圖中，橫軸表示光學膜的寬度方向的位置，縱軸表示光量位準。其中，橫軸係與CCD攝影機的視野寬幅(760mm)相對應，若以像素表示時，即相當於4096pixel。縱軸係將光量位準的下限值表示為0、將上限值表示為255。各圖中，橫軸及縱軸的範圍相同。 In the eighth A diagram, the eighth B diagram to the thirteenth A diagram, and the thirteenth diagram B, the horizontal axis represents the position in the width direction of the optical film, and the vertical axis represents the light amount level. Among them, the horizontal axis corresponds to the field of view (760 mm) of the CCD camera, and when expressed in pixels, it corresponds to 4096 pixels. The vertical axis indicates the lower limit value of the light amount level as 0 and the upper limit value as 255. In each of the figures, the ranges of the horizontal axis and the vertical axis are the same.

如第八A圖、第八B圖~第十三A圖、第十三B圖所示，光量位準的平均值係隨著放電輸出變大而變大。此外，光量位準的變動範圍係遍及光學膜的寬度方向全部區域擴展為帶狀。 As shown in FIG. 8A, FIG. 8B to FIG. 13A, and FIG. 13B, the average value of the light amount level becomes larger as the discharge output becomes larger. Further, the range of variation of the light amount level is expanded into a strip shape over the entire width direction of the optical film.

但是，光量位準的變動範圍依光學膜的寬度方向的位置而異。例如，在光學膜的寬度方向，像素0pixel~600pixel的範圍的位置，相較於像素600pixel~4096pixel的範圍的位置，光量位準較高。 However, the range of variation of the light amount level varies depending on the position of the optical film in the width direction. For example, in the width direction of the optical film, the position of the pixel in the range of 0 pixels to 600 pixels is higher than the position of the pixel in the range of 600 pixels to 4096 pixels.

其理由係像素0pixel~600pixel的範圍相當於滾筒露出區域，像素600pixel~4096pixel的範圍相當於膜搬送區域，由此被認為滾筒露出區域與膜搬送區域的放電特性的不同而有所影響。亦即，在膜搬送區域，由於存在作為絕緣體的光學膜，因此電暈放電較弱且放電電流密度降低之故。 The reason is that the range of pixels 0 pixels to 600 pixels corresponds to the exposed area of the drum, and the range of pixels 600 pixels to 4096 pixels corresponds to the film transporting region, and thus it is considered that the discharge characteristics of the exposed area of the drum and the film transporting region are different. That is, since the optical film as an insulator exists in the film transporting region, the corona discharge is weak and the discharge current density is lowered.

表1係將實施例1~7中的光學膜的寬度方向的位置與光量位準的關係加以彙整的表。 Table 1 is a table in which the relationship between the position in the width direction of the optical film of Examples 1 to 7 and the light amount level is collected.

在表1中，「光量位準的平均值」係以實施例1的平常時的放電輸出為基準時，亦即將放電輸出設定為800W時的光量位準的平均值設為256階調的大致一半的127時之分別設定為實施例2~7的放電輸出時的光量位準的平均值。 In Table 1, the average value of the light level is based on the normal discharge output of the first embodiment, and the average value of the light level when the discharge output is set to 800 W is set to 256. Half of the 127 o'clock was set as the average of the light amount levels at the discharge output of Examples 2 to 7, respectively.

「(變動範圍)」係光學膜的寬度方向全部區域中的光量位準的變動範圍。其中，實施例2及實施例3中的變動範圍的下限值並無法算出，因此未記載。 The "(variation range)" is a range of variation in the amount of light in all regions in the width direction of the optical film. However, the lower limit of the variation range in the second embodiment and the third embodiment cannot be calculated, and therefore is not described.

「與變動範圍的差」係相對實施例1中之光量位準的變動範圍(97~156)之實施例2~7的各個中的光量位準的平均值的差(較小者的差)。具體而言，在實施例2~7的各個中係記載出相對實施例1中之光量位準的變動範圍的下限值(97)的光量位準的平均值的差、與相對實施例1中之光量位準的變動範圍的上限值(156)的光量位準的平均值的差之中任何較小者的差。其中，若「與變動範圍的差」為10以上，判定為對實施例1的放電輸出設定值可得顯著差異。 The "difference from the variation range" is the difference (the smaller difference) between the average values of the light amount levels in each of the second to seventh embodiments of the variation range (97 to 156) of the light amount level in the first embodiment. . Specifically, in each of the second to seventh embodiments, the difference between the average value of the light amount levels of the lower limit value (97) of the fluctuation range of the light amount level in the first embodiment is described, and the first embodiment is compared with the first embodiment. The difference between any smaller of the difference between the average values of the light amount levels of the upper limit value (156) of the fluctuation range of the light amount level. However, if the "difference from the fluctuation range" is 10 or more, it is determined that the discharge output setting value of the first embodiment can be significantly different.

「可否檢測」係在實施例2~7的各個中，表示光量位準的變 動範圍是否包含在實施例1的光量位準的變動範圍(97~156)。在實施例2~7的各個中，將光量位準的變動範圍未包含在實施例1的光量位準的變動範圍(97~156)時以「○(good)」表示。將光量位準的變動範圍一部分包含在實施例1的光量位準的變動範圍(97~156)時以「△(fair)」表示。 "Is it detectable" is a change in the amount of light in each of Examples 2 to 7. Whether the range of motion is included in the range of variation of the amount of light in the first embodiment (97 to 156). In each of the second to seventh embodiments, when the fluctuation range of the light amount level is not included in the fluctuation range (97 to 156) of the light amount level in the first embodiment, it is represented by "○ (good)". When a part of the variation range of the light amount level is included in the fluctuation range (97 to 156) of the light amount level in the first embodiment, it is represented by "Δ(fair)".

如表1所示，在實施例3中，光量位準的變動範圍有一部分包含在實施例1的光量位準的變動範圍(97~156)，因此以對實施例1的放電輸出設定值的顯著差異而言，係稍微不足。但是，將臨限值設定在光量位準的上下，光量位準包含在以上下的臨限值所規定的範圍時係判定為正常，光量位準未包含在以上下的臨限值所規定的範圍時則判定為異常，藉此檢測有無電暈放電異常，可確認在光學膜的表面是否被均一地進行電暈處理。 As shown in Table 1, in the third embodiment, the fluctuation range of the light amount level is partially included in the variation range (97 to 156) of the light amount level in the first embodiment, and therefore the set value of the discharge output of the first embodiment is set. In terms of significant differences, the system is slightly insufficient. However, if the threshold is set above and below the light level, and the light level is included in the range specified by the above-mentioned threshold, it is judged to be normal, and the light level is not included in the above-mentioned threshold. In the case of the range, it was judged to be abnormal, thereby detecting the presence or absence of a corona discharge abnormality, and it was confirmed whether or not the surface of the optical film was uniformly subjected to corona treatment.

另一方面，在實施例2、實施例4~7中，光量位準的變動範 圍未包含在實施例1的光量位準的變動範圍(97~156)，因此相對實施例1的放電輸出設定值，發現顯著差異。因此，可穩定地檢測電暈放電有無異常，可精度佳地確認在光學膜的表面是否已均一地進行電暈處理。 On the other hand, in the second embodiment and the fourth to seventh embodiments, the variation of the light amount level Since the fluctuation range (97 to 156) of the light amount level in the first embodiment was not included, a significant difference was found with respect to the discharge output setting value of the first embodiment. Therefore, it is possible to stably detect the presence or absence of an abnormality in the corona discharge, and it is possible to accurately confirm whether or not the corona treatment has been uniformly performed on the surface of the optical film.

此外，由實施例4~7的結果可知，在放電輸出為230W~600W的範圍，即使放電輸出為100W左右的變化，亦可得相對其他實施例的放電輸出設定值為充分的顯著差異。 Further, as is clear from the results of Examples 4 to 7, even in the range of the discharge output of 230 W to 600 W, even if the discharge output was changed to about 100 W, the discharge output set value of the other examples was sufficiently significantly different.

1‧‧‧光學膜之製造裝置 1‧‧‧Optical film manufacturing device

2‧‧‧搬送裝置 2‧‧‧Transporting device

3‧‧‧電暈處理裝置 3‧‧‧Corona treatment device

4‧‧‧檢査裝置 4‧‧‧Checking device

5‧‧‧控制裝置 5‧‧‧Control device

6‧‧‧分散型控制系統(DCS) 6‧‧‧Dispersed Control System (DCS)

20‧‧‧裝填部 20‧‧‧Loading Department

21a、21b、21c、21d‧‧‧搬送滾筒 21a, 21b, 21c, 21d‧‧‧ transport rollers

23‧‧‧捲繞部 23‧‧‧Winding Department

30‧‧‧電暈處理部 30‧‧‧Corona Treatment Department

31‧‧‧處理滾筒 31‧‧‧Processing roller

40‧‧‧CCD攝影機 40‧‧‧CCD camera

41‧‧‧運算裝置 41‧‧‧ arithmetic device

Fa‧‧‧未處理膜(光學膜) Fa‧‧‧Untreated film (optical film)

Fb‧‧‧處理完畢膜(光學膜) Fb‧‧‧Processed film (optical film)

Claims (3)

一種光學膜之製造裝置，其係包含：搬送裝置，其係搬送光學膜；電暈處理裝置，其係被配置在前述光學膜的搬送路徑上，在與前述光學膜的搬送方向呈正交的前述光學膜的寬度方向產生電暈放電，且在前述光學膜的表面施行電暈處理；及檢査裝置，其係遍及前述光學膜的寬度方向來檢査藉由前述電暈放電所發出的光的光量。 An apparatus for producing an optical film, comprising: a transfer device that transports an optical film; and a corona treatment device that is disposed on a transport path of the optical film and that is orthogonal to a transport direction of the optical film a corona discharge is generated in a width direction of the optical film, and a corona treatment is performed on a surface of the optical film; and an inspection device that checks a light amount of light emitted by the corona discharge in a width direction of the optical film . 如申請專利範圍第1項之光學膜之製造裝置，其中，前述檢査裝置包含接受藉由前述電暈放電所發出的光的CCD攝影機。 The apparatus for manufacturing an optical film according to claim 1, wherein the inspection apparatus includes a CCD camera that receives light emitted by the corona discharge. 一種貼合系統，其係包含：如申請專利範圍第1項或第2項之光學膜之製造裝置；判定裝置，其係判定藉由前述電暈放電所發出的光的光量是否包含在預定的範圍內；切斷裝置，其係由藉由前述光學膜之製造裝置所製造的光學膜，將藉由前述判定裝置而被判定為未包含在前述預定範圍內的部分作為不良部分進行切離，形成不存在前述不良部分的光學膜；回收裝置，其係回收前述不良部分；及貼合裝置，其係將不存在藉由前述切斷裝置所形成的前述不良部分的光學膜貼合在貼合對象物。 A bonding system comprising: an apparatus for manufacturing an optical film according to claim 1 or 2; and a determining device for determining whether a light amount of light emitted by the aforementioned corona discharge is included in a predetermined In the range, the cutting device is an optical film manufactured by the optical film manufacturing apparatus, and the portion determined to be not included in the predetermined range by the determining device is cut off as a defective portion. Forming an optical film in which the defective portion is not present; a recovery device for recovering the defective portion; and a bonding device for adhering the optical film having the defective portion formed by the cutting device to the bonding Object.
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