TW473754B - Manufacturing method of touch panel - Google Patents

Abstract

A manufacturing method of touch panel is disclosed, wherein a transparent film and a back-side liner layer are bonded to form a bonded sheet. Then, dispose several upper electrode cell on the surface of the transparent film, separate each upper electrode cell along the preset cutting line on the transparent film layer of the bonded sheet, and the back-side liner sheet is kept intact so that the whole bonded sheet is still kept sheet-like with large area for the following working process conveniently. Therefore, dispose adhesive frame at the periphery of each upper electrode cell, dispose the bottom electrode cell on the glass substrate in the way corresponding to said upper electrode cell at the same time, bond tightly the transparent thin film of the bonded sheet and the glass substrate, proceed the cutting, cleaving operation to the glass substrate to obtain plural individual touch panels in a batch working process of production, thereby the production efficiency is greatly enhanced. Also, with the assistance of the back-side liner sheet, the spreading mess of working piece is avoided and the position alignment of working piece is more accurate so that the yield rate of the product is increased.

Description

473754 A7 B7 V. Description of the invention (I) [Technical category] The present invention relates to a method for manufacturing a touch panel. A transparent film is placed on a backing sheet, and a plurality of transparent films and glass substrates are respectively provided in advance. Required resistance film, adhesive film, and then cut the transparent film into individual units of the required specifications, leaving these units on the backing sheet, and then set the transparent film and glass substrate to provide resistance After the -faces of the film are glued to each other, the glass substrate is provided with grooves along a predetermined cutting line by a cutter, and a split device is used to cut the glass substrate along these grooves respectively. Finally, the individual divided touch screens are completed. The panel is separated from the backing sheet to obtain each touch panel. [Background Art] As is known, touch panels are widely deployed on liquid crystal displays (LCDs) or cathode ray tubes (CRTm), so that people can follow the directions on the screen screen that they see through. Press from the top with a finger or a pen tip to detect the pressed position to perform position input.-General touch panels, such as resistive touch panels, usually have a resistive film on the top. One surface of the flexible transparent film, and the lower resistance film is arranged on one surface of the glass substrate, and the adhesive is applied to the peripheral part of the panel between the two surfaces arranged oppositely, so as to closely close the two. As for the manufacturing method of the aforementioned touch panel, at an earlier time, ^, that is, first cut the aforementioned transparent film and glass substrate into the required size specifications of individual units, and then separately for these individual The divided sheets of the unit are processed for the required configuration of resistance films, adhesives, etc., and then the two are bonded together and adhered closely to complete the manufacturing of the touch panel. This conventional technology needs to be targeted at each One ( Please read the precautions on the back first, and then print this one-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 1T

473754 A7

~ ― 、、、、 .- ^ 里 艾 * In this multi-step processing method, the operation of the alignment of the workpiece material during construction has become the main key to the success or failure of the product. The processing material is divided into smaller-sized sheet materials, and the operation becomes more difficult. This results not only in the bottleneck of production technology, but also the lack of high product defect rate. In the face of the aforementioned production technology problems, some of the industry advanced and improved one by one. The other transparent films and glass substrates were replaced with a large area of a single piece of material, and several units of conductive films and adhesives were pre-arranged on the board. Wait, then, after the two are paired and adhered closely, use a cutter to cut in from above the transparent film to cut off the individual transparent film layers. At the same time, use a cutter to cut into the bottom surface of the glass substrate. In this way, a cutting groove is formed on the bottom surface of the glass substrate, and finally each touch panel is divided along the groove of the glass substrate. However, the transparent film described in the conventional technology is a material with strong serviceability, and it is usually used in A hard coating layer can be provided on the uppermost surface to improve the sliding property of the input and prevent scratches. Therefore, when a transparent device is used to cut the transparent film adhered to the glass substrate during the production process, the gas will move 1 iron ^ \ Layer, peeling-axe and damage. Adhesive structure, and the hard coating peeled off near the two sides of the cutting line on the transparent film. And the aforementioned conventional technology uses a cutter to perform cutting from above the transparent film and the bottom surface of the glass substrate, so that the alignment between the cutting line on the transparent film and the groove on the glass substrate becomes It is extremely important, but generally speaking, the previous paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X297 mm) (please read the precautions on the back before this page) Printing 5. Description of the invention (3)) The widths of the cutting lines and grooves are usually very small, so the alignment of the two is extremely difficult. 'Although' the aforementioned dividing operation can also be performed by using a cutter directly from above the transparent film. Cut-in, the method of setting grooves on the glass & board at the same time after the ancient knife cuts the transparent film is used as a solution to the alignment problem, but in this way, the cut-off device must cut two kinds of materials with different characteristics at the same time. As a result, the cutter is blunt, and the cut π on the cut material is not uniformly peeled off. Moreover, two micro-cracks are generated in the groove of the glass substrate, which seriously damages the strength. This method cannot actually be used. [Objective of Creation] In view of this, the main object of the present invention is to provide a method for manufacturing a touch panel with a high production ratio, so that several or even dozens of individual panels can be produced simultaneously in one processing process. The control panel improves the production efficiency by A, which can save time and labor costs. Another object of the present invention is to provide a method for manufacturing a touch panel that can greatly improve the yield of a product. With the aid of ^, each work piece that has been cut off and separated during the manufacturing process is attached to the backing sheet and maintained. It has a large-area sheet shape, thereby avoiding scattered workpieces during processing, to promote production efficiency, and to facilitate the operation of the alignment of the workpiece materials, so as to reduce the defective rate of the product. The other purposes of this creation will be explained one after another. Through this creative embodiment, the industry should have some understanding. «As shown in the first figure, according to the method for manufacturing a touch panel of the present invention, a transparent film layer and a backing sheet layer are first bonded to form a top sheet, and a plurality of upper electrodes are provided on the surface of the transparent film. Unit, and later, ^ is the meaning of multiple anti-construction, in order to observe the long-term interest in accordance with this paper standards apply the Chinese National Standard (CNS) A4 specifications (210X297 mm) 473754 5. Description of the invention (bucket) Central Bureau of Standards, Ministry of Economic Affairs Printed by the employee's consumer cooperative, according to this, the overall film still maintains the shape of the moxibustion film with a large surface to facilitate the subsequent processing process. Thereafter, adhesives are set on the periphery of the upper 10,000 electrodes At the same time, the lower electrode unit is also set on a glass substrate in the same way as the above-mentioned upper electrode unit; after that, the transparent transparent film on the upper side and the glass substrate are glued, and then connected. The glass substrate is cut and split into pieces to obtain individual touch panels. [Illustration of the drawing] The first picture is a block diagram of the processing steps of the present invention; the second picture is a separated body diagram of the upper sheet member of the present invention, and shows the arrangement of the electrode unit above the transparent membrane in detail; The third figure is a schematic diagram of the cutting process of the transparent film of the present invention, which shows the cutting operation along the predetermined cutting line of the transparent film by the cutter; the fourth figure is another embodiment of the cutting process of the transparent film of the present invention The intention is to show that the transparent film is cut by two pairs of die cutters and the cutting lines formed on the transparent film; the fifth figure is a cross-sectional view of the blank member on the present invention, showing the transparent film And the state after the liner is cut; the sixth figure is a perspective view of the upper sheet member of the present invention, which shows an adhesive frame provided on the inner periphery of the upper electrode unit; the seventh figure is a perspective view of the glass substrate member of the present invention, Shows the arrangement of the electrode unit below the glass substrate; the eighth figure is a schematic view of the cutting groove processing of the glass substrate according to the present invention, and the glass cutter is used to cut along the predetermined cutting line of the glass substrate. Clearly show the back (please read the precautions on the back before filling this page) The paper size of the paper applies the standard of the mid-level family (⑽) (2lQx297 mm) Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 473754 A7 B7 V. Explanation of the invention (5) The ninth figure is a cross-sectional view of a touch panel in the manufacturing process of the present invention, showing the state after the glass substrate on the touch panel is cut; the tenth figure is a process of splitting a glass substrate according to the present invention. A schematic diagram showing the positions of the die head, the die substrate, and the glass substrate; and FIG. 11 is a schematic diagram of the glass substrate split processing of the present invention, showing that the glass substrate has completed fracturing along a predetermined cutting line segmentation. [Element description] Transparent film ..... 1 Hard coating surface. 11 Surface .............. 12 Upper electrode unit 13 Resistive film 13Α Bus electrode ... 13Β Scheduled cut-off line 14 Remaining part ... 16 Targets ..... 17 Backing Sheets ... . 2 Loading sheet ..... 3 Adhesive frame ... 4 Glass substrate .............. ........ 5 Surface ...................................... 51 Lower electrode unit 52 Transparent resistive film 52A Bus electrode ..... 5 2B bump-shaped spacer 53 surface ........ ..... 54 Scheduled cutting line ________ 55 Groove ......... 56 Target ... .. 57 Die Head ..... 71 Die Base ... ......... 72 Cut-off ............... 81 Press cutter .. ........ 81Α, 81Β Glass cutters ..... 82 Touch panel 9 [Explanation of the embodiment] This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) (Please read the notes on the back first (Fill in this page again)

1T 473754 A7 V. Description of the invention (6 Please refer to the second figure. The present invention uses a large rectangular transparent film (lm) 1 with a surface 11 having a hard cladding layer and a back of a nominal size. The lining (briber) 2 is glued and laminated to form a top sheet 3. On the exposed surface 12 of the transparent film of the top sheet, twelve neatly arranged upper rectangular electrode units U 'are arranged. The upper electrode unit refers to those formed in the entire area of the aforementioned transparent substrate 1 as necessary for input, and includes a transparent resistive film M and a bus electrode 1 3 B. Thereafter, as shown in the third figure, The cutter 81 is cut in from the side of the transparent film i of the top sheet along a predetermined cutting line 14, and the transparent film I sheet layer is completely cut to divide each of the upper electrode units. The two layers of the lining sheet are not cut off (as shown in the fifth figure), so that each of the divided upper electrode units 1 ′ remains on the far backing sheet 2, and with the support of the backing sheet 2, So that the whole sheet is still in the shape of a rectangular large area before being cut State to facilitate the subsequent processing .... As shown in the sixth figure, the upper electrode unit of each transparent membrane is cut off, and an adhesive is provided on the inner periphery of the spring 14 to form a closed Adhesive frame 4; in order to meet the special requirements, for example, when it is applied to the U part of the bus electrode, 'it must make the part to be electrically connected after being glued for power supply, so the aforementioned adhesive The conductive adhesive is used. In addition, the seventh electrode shown in FIG. 7 is not on a glass substrate (GlaSS) 5 with a commensurate specification and is equivalent to the transparent film described above. Twelve neatly arranged lower electrodes 52 ′ are arranged symmetrically on one surface 5] of the glass substrate, wherein the lower electrode unit% means formed on the aforementioned glass.

(Please read the precautions on the back before filling in this page) Order • m H · 473754 Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (^) All of the substrate 5 are the necessary areas for input It includes a transparent resistive film $ 2 a and a bus electrode 52B. Thereafter, the surface 12 of the transparent film of the loading plate and the surface 5 of the glass substrate are glued together by the adhesive frame 4 described above; in this state, the transparent film 1

The surface 54 is cut into the side along a predetermined cutting line 55, so that a groove 56 corresponding to the cutting line 14 of the transparent film is formed on the glass substrate 5 (as shown in Figures 8 and 9); The grooves 56 on the glass substrate are split, and the glass substrate is cut off and divided into the required unit specifications. Finally, the units that are still adhered to the backing sheet 2 are-- Separately, each touch panel 9 is obtained accordingly. The above-mentioned resistive film touch panel is configured for use on a frame surface such as a liquid crystal display or a cathode ray tube, so that the user can follow the instructions on the daytime screen of the screen to see through the farm, and avoid the dangers of farmers and rabbits. Occupy area burns, through which multiple gas ^ ^ Retrieve the upper electrode unit disposed opposite to the interval] 3 and the lower party pole unit J2-in contact with each other to detect the pressed position, thereby performing position input . In the aforementioned manufacturing method of the touch panel, the transparent film 1 may be made of engineering plastics such as polycarbonate, polyamide, etc .; and, based on special requirements, the transparent film may also be a layer that overlaps multiple film layers. It can be combined to replace a single layer of film; and the hard coating layer on the transparent film can be a hard coating such as acrylic epoxy.

I paper size applies to China's "SiTcNS" A4 specification (210X297mm) '' ---- J (Please read the precautions on the back before filling this page) • I install _ 、 11 473754 A7

: Type resin, and it is best to roughen the surface by particles to prevent glare on the surface of the coating film of the hard cladding layer; in addition, the bump-shaped spacers 53 may be formed on the upper electrode unit 13 On the surface of either or both of the lower electrode units 52, bump-shaped spacers such as lines are aligned on the surface at a regular distance from each other. In addition, for the cutting operation of the transparent film in the foregoing processing process, preferably, two pairs of cutting die 81A, 8.1B having relatively complementary cutting blade patterns, such as those shown in the fourth figure, may be used, respectively. The transparent film 1 of the top sheet is cut twice. As a result, in addition to cutting out the range of each upper electrode unit 13 required, the upper electrode units n to be removed are also divided at the same time. The gap in the remaining material portion 16. In addition, in the operation of bonding the surface 12 of the transparent film to the surface 51 of the glass substrate as described above, it is preferable to keep the bonding surface of the two to be slightly 15. The angle of inclination gradually gradually matches with each other, and according to this, the air between Tenger and the fitting plane is expelled, and I benefit from the dense characteristics of Thai. And 'According to the aforementioned process, when the grooves 56 are provided on the predetermined cutting line 55 of the glass substrate 5, in the subsequent glass substrate slicing process, it is best to use a pair with a moderate plastic deformation ability (such as gum ) The stamper head 7 丨 and the stamper substrate 72 are aligned with the grooves 56 on the glass substrate, and the stamper head 7] is pushed in from the backing sheet 2 side to give a moderate compressive stress (see the tenth figure). (Illustrated) to fracture the glass substrate along the predetermined cutting line 55 into individual touch panels 9 (see FIG. 11). This invention is particularly special, the backing sheet 2 is used to protect the transparent film 1 to prevent the surface 11 from being abraded and scratched in various processing processes; and its more outstanding effect This paper size applies Chinese national standards (CNS ) A4 size (210X297mm) c Please read the notes on the back before filling in this page j

Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 473754 V. Description of the invention (?) It is used in various security systems, and the backing sheet 2 can be used to separate the original workpieces, such as: The 13 electrode units are still connected together and kept in a large area, which can prevent the workpiece from being scattered during processing, to improve production efficiency, and to facilitate the operation of the alignment position of the workpiece material, making the process The workpiece alignment operation is simple and no longer a problem. In fact, the product yield has been greatly improved. In addition, in order to pursue the accuracy of the product, the present invention is provided with targets 17, 5 and 8 near the side edges of one surface of the transparent film I and the glass substrate 5, respectively (see figures 2 and 7). For the purpose of workpiece alignment in each processing process, for example, in the above-mentioned system of making the surface of the transparent film 2 and the surface 51 of the glass substrate glued tightly: the alignment between the upper and lower electrode units 13, 52, That is, 预设 η preset on the transparent film and the remaining 57 on the glass substrate are used as the reference points for positioning alignment; for example, in the aforementioned process, each upper electrode unit 13 is divided from the transparent film and the glass is separated from the glass. The grooves 56 on the substrate are determined by reading the targets 17, 57 as the reference to determine the predetermined cutting lines 14, 55 so that the coordinate positions of the two after cutting are consistent, and the touch panel 9 is completed without error. Finished product. The printing of the invention by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is not limited to the above-mentioned form. Obviously, for those skilled in the art, after referring to the above description, there can be more improvements and changes. Any modifications or changes made to the creation in the same spirit of creation should still be included in the scope of protection of the intention of the creation. This paper size is applicable to China National Standard (CNS) 8.4 (2ΐ〇 × 297mm)

Claims (1)

473754 A8 B8 C8 D8 6. Application scope of patent (/ J A kind of touch-screen touch panel, 丄. Method, which can obtain multiple touch panels at the same time in one processing process, which includes a rectangle with a large area The transparent film and the backing sheet are glued together and laminated-the feeding sheet is provided with a plurality of neatly arranged upper electrode units on the exposed surface of the transparent film; b) thereafter, the transparent film sheet is completely separated by a "cutter" Cut off to separate the electrode range required for each upper electrode unit, and leave the sheet of the backing sheet untruncated, so that the divided upper electrode units remain on the backing sheet;) ', Each of the upper electrode units is provided with an adhesive frame along the inner periphery of the cutting line I 4; d) The upper electrode unit which is equivalent to the transparent film provided on the glass substrate of the above-mentioned top sheet is also arranged there. A plurality of neatly arranged lower electrode units are arranged symmetrically on one surface of the glass substrate; e) Thereafter, the surface of the upper electrode unit provided with the transparent thin film and a The surfaces of the units are glued together by the aforementioned adhesive frame; f) Thereafter, a glass cutter is used to form grooves on the surface of the glass substrate that are not glued to the transparent film, commensurate with the cutting line of the transparent film; And g), performing a split application along the grooves on the glass substrate, cutting and dividing the glass substrate into the required individual unit specifications, and separating the units that are still adhered to the backing sheet-separation To obtain each touch panel accordingly. This paper is suitable for financial and family care standards (CNS) A4 specifications (21GX 2971 ^ 7 Please read the back 5 items of interest Η Order Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 473754 Apply for a patent. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints the touch panel manufacturing method described in item 1 of the scope of the patent application. The ancient _ ^ Λ electrode unit refers to each of the aforementioned transparent films. The input 3 must be in the area, and it includes the transparent resistive film and the bus electrode and other parts. The method for manufacturing a touch panel according to item 1 of the female patent application, wherein the adhesive frame used in the bus electrode portion is a conductive adhesive. 4 The method for manufacturing a touch panel as described in item 1 of the patent scope, wherein the lower electrode unit refers to those formed on the entire surface of the aforementioned glass substrate, each of which is necessary for inputting $, and which includes a transparent resistive film And bus electrodes. 5. The method for manufacturing a touch panel according to item i of the scope of patent application, further comprising: In the aforementioned processing process for cutting and applying transparent films, two pairs of relatively complementary cutting blade patterns are used. The cutting die is used to cut the transparent film of the top sheet twice, so that, in addition to cutting out the range of each upper electrode unit required, at the same time, the desired The remaining material in the gap of the upper electrode unit. 6 The method for manufacturing a touch panel as described in item 丄 of the scope of the patent application, further comprising: in the aforementioned operation of bonding the transparent thin film to the glass substrate, the bonding surface is kept at a slight 15 . The angle of inclination is gradually relative to each other ’according to this, the air between the two bonding planes is driven out, so as to facilitate the close adhesion of the features after gluing. 7. The manufacturing method of the touch panel as described in the first item of the scope of the patent application, which further includes: in the processing process of performing a split on the glass substrate, the M die and the pressing die having a moderate plastic deformation ability are used. Mold substrate to align the glass Please read the 5 notices on the back first. 订 %% 473754 A8 B8 C8 D8 Patent application scope 8 Make the "Hai pressure die from the side of the backing sheet to apply moderate compressive stress to the glass substrate along the predetermined cutting line Fracturing & each touch panel. The method for manufacturing a touch panel as described in item 1 of the "Monthly Patent Scope", further includes: engraving titanium oxide near the side edge of one surface of the transparent film and the glass substrate for processing. Application of workpiece alignment in the manufacturing process. Printed by the Employees' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs This paper is sized for the Chinese National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)