TW201411428A - Touch sensing panel and manufacturing method - Google Patents

Abstract

The present invention discloses a touch sensing panel comprising: a first transparent flexible substrate, a patterned light-shielding layer, a touch sensing structure and a plastic substrate. The patterned light-shielding layer is disposed on the first transparent flexible substrate, and the touch sensing structure is disposed on the patterned light-shielding layer and includes a plurality of transparent sensing series and a first peripheral circuit, and the first peripheral circuit is disposed at the patterned light-shielding layer, and the plastic substrate is integrally formed on the top surface of the touch sensing structure.

Description

Touch sensing panel and manufacturing method thereof

The invention provides a touch sensing panel, and provides a touch sensing panel with better mass production yield and rapid mass production, and a manufacturing method thereof.

In today's market for consumer electronics products, portable electronic products such as personal digital assistants (PDAs), mobile phones, notebooks, and tablet PCs have been widely used. A touch panel is used as an interface tool for data communication. In addition, since the design of electronic products is currently in the direction of light, thin, short and small, there is not enough space on the product to accommodate traditional input devices such as keyboards and mice, especially in the demand for tablet PCs that are designed with humanity in mind. Next, touch panels have become one of the key components. In addition to the multi-level menu design requirements, the touch panel can also have the functions of keyboard, mouse and other humanized operation modes.

At present, the outermost layer of the touch panel structure and the environment is usually a tempered glass substrate, and then a touch sensing layer is adhered. For example, indium tin oxide (ITO) is used as a conductive material to integrate the touch panel. Then, it is combined with the display panel (ie, the backlight module) to form a complete touch display device. As described above, the glass substrate and the touch sensing layer are pasted together by an optical glue. In addition, at the periphery of the glass substrate, an image layer black frame is often printed by ink screen printing to shield the wiring. However, since the screen printing is a piece-by-piece printing, the mass production efficiency is poor. However, the screen printing is subject to the characteristics of the screen or ink such as the mesh opening ratio, dry plate or overflow ink. It is difficult to control the thickness uniformity of the image layer, which makes the printing quality unstable, and the yield thereof is lowered.

The object of the present invention is to provide a touch sensing panel which is better in mass production yield and can be mass-produced rapidly and a manufacturing method thereof.

To achieve the above objective, the touch sensing panel of the present invention comprises: a first transparent flexible substrate, a patterned light shielding layer, a touch sensing structure, and a plastic substrate, wherein the patterned light shielding layer is located on the first transparent flexible substrate The touch sensing structure is located on the patterned light shielding layer, and has a plurality of transparent sensing series and a first peripheral circuit, wherein the first peripheral circuit is located in the patterned light shielding layer, and the plastic substrate is integrally formed on the The touch sensing structure is on the upper surface.

The transparent sensing series includes a plurality of first transparent sensing series and a plurality of second transparent sensing series, and the first transparent sensing series and the second transparent sensing series are interlaced.

To achieve the above objective, the touch sensing structure of the present invention further includes a plurality of first transparent sensing series and a plurality of second transparent sensing series and a second peripheral line, and the first transparent sensing series Located on the patterned light-shielding layer, the second transparent sensing series and the second peripheral circuit are located on a transparent substrate, and the transparent substrate is adhered to the first transparent sensing series, the first transparent The sensing series and the second transparent sensing series are interlaced with each other, and the second peripheral circuit is located opposite to the patterned light shielding layer.

The method further includes a second transparent flexible substrate disposed on the patterned light shielding layer, wherein the touch sensing structure is located on the second transparent flexible substrate.

The surface of the first transparent flexible substrate and/or the second transparent flexible substrate further includes a scratch-resistant layer to block moisture.

The above further includes an easy-to-back layer between the touch sensing structure and the plastic substrate.

To achieve the above objective, the method for manufacturing the touch sensing panel of the present invention includes: providing a release layer; forming a first transparent flexible substrate on the upper surface of the release layer; forming a patterned light shielding layer on the first a transparent sensing substrate is formed on the patterned light shielding layer, the touch sensing structure has a plurality of transparent sensing series and a peripheral line, wherein the first peripheral line is located in the patterned light shielding layer Forming a plastic substrate on the upper surface of the touch sensing structure; and separating from the release layer to form a touch panel.

In order to achieve the above objective, the forming the touch sensing structure further includes: forming a first transparent sensing series and forming a first peripheral line formed on the patterned light shielding layer to form a second transparent sensing string. a column and a second peripheral line formed on a transparent substrate; and pasting the transparent substrate over the first transparent sensing series to cause the first transparent sensing series and the second transparent sensing string The columns are interlaced and the second peripheral line is located opposite the patterned shading layer.

In order to achieve the above object, forming the touch sensing structure in the present invention further includes: forming a second transparent flexible substrate on the upper surface of the patterned light shielding layer.

The method further includes: forming an easy-to-back layer on the touch sensing structure.

The above method of forming the patterned light shielding layer is a printing method or a photoresist lithography method.

As shown in the first figure, the touch sense provided by the first embodiment of the present invention is Schematic diagram of the test panel. The touch-sensing panel 1 of the present invention comprises: a first transparent flexible substrate 10, a patterned light-shielding layer 20, a touch-sensing structure 30, and a plastic substrate 40, the first transparent flexible substrate 10 having a corresponding upper surface 11 and The lower surface 12, and the surface of the first transparent flexible substrate 10 further includes a scratch-resistant layer (not shown), which can block the entry of moisture into the service life, and the patterned light-shielding layer 20 is located on the upper surface 11 of the first transparent flexible substrate. And it can be located at the periphery of the periphery of the first transparent flexible substrate 10. The touch sensing structure 30 is located on the patterned light shielding layer 20 and has a plurality of first transparent sensing series 31 and a first peripheral line 32 connected to each other, wherein the first peripheral line 32 is located in the patterned light shielding layer 20 . The touch sensing structure 30 can be a capacitive touch sensing structure and a resistive touch sensing structure. The plastic substrate 40 is integrally formed on the upper surface of the touch sensing structure 30, and serves as a protective layer or as a support for the back of the surface. Since the plastic substrate has plasticity, various shapes can be formed through integral molding. The frame allows the appearance to be designed in a variety of ways, which can improve the design limitations of the conventional full-plane glass processing. The easy-to-adhere layer 50 can be disposed between the touch sensing structure 30 and the plastic substrate 40. The measuring structure 30 and the plastic substrate 40 are bonded to each other.

FIG. 2 is a schematic view showing a touch sensing panel according to a second embodiment of the present invention. The touch-sensing panel 1 of the present invention also includes a first transparent flexible substrate 10, a patterned light-shielding layer 20, a touch-sensing structure 30, and a plastic substrate 40. The patterned light-shielding layer 20 is located on the first transparent flexible substrate. Upper surface 11. The touch sensing structure 30 is located on the patterned light shielding layer 20, and the touch sensing structure may include a plurality of first transparent sensing series 31 and a plurality of second transparent sensing series 33 and a second peripheral line 34. A transparent sensing series 31 is located on the patterned light shielding layer 20, and each of the second transparent sensing series 33 and the second week The side lines 34 are connected to each other and are located on the lower surface 12 of the first transparent flexible substrate. The first transparent sensing series 31 and the second transparent sensing series 33 are interlaced with each other, and the second peripheral lines 34 are relatively located in the pattern. The light shielding layer 20 is located.

FIG. 3 is a schematic view showing a touch sensing panel according to a third embodiment of the present invention. The touch-sensing panel 1 of the present invention also includes a first transparent flexible substrate 10, a patterned light-shielding layer 20, a touch-sensing structure 30, and a plastic substrate 40. The patterned light-shielding layer 20 is located on the first transparent flexible substrate. Upper surface 11. The touch sensing structure 30 is located on the patterned light shielding layer 20, and the touch sensing structure may include a plurality of first transparent sensing series 31 and a plurality of second transparent sensing series 33 and a second peripheral line 34. A transparent sensing series 31 is located on the patterned light shielding layer 20, and each of the second transparent sensing series 33 and the second peripheral line 34 are connected to each other and located on a surface of a transparent substrate 35, and the transparent substrate 35 is pasted. The first transparent sensing series 33 is disposed on the transparent substrate 35, and the first transparent sensing series 31 and the second transparent sensing series 33 are disposed on the first transparent sensing series 31. Interlaced with each other, and the second peripheral line 34 is located opposite the patterned light shielding layer 20.

FIG. 4 is a schematic view showing a touch panel provided by a fourth embodiment of the present invention. The touch-sensing panel 1 of the present invention also includes a first transparent flexible substrate 10, a patterned light-shielding layer 20, a touch-sensing structure 30, a plastic substrate 40, and a second transparent flexible substrate 60, and a patterned light-shielding layer 20 Located on the upper surface 11 of the first transparent flexible substrate. The second transparent flexible substrate 60 is located on the patterned light-shielding layer 20, so that the gap between the patterned light-shielding layer 20 and the first transparent flexible substrate 10 can be made flat, so that the subsequent process can be easily fabricated. The touch sensing structure 30 is located on the second transparent flexible substrate 60. The touch sensing structure 30 can have the same structure as the third embodiment, and includes a plurality of first transparent feelings. The serial array 31 and the plurality of second transparent sensing series 33 and the second peripheral line 34 are mounted on the surface of the transparent substrate 35; of course, the composition of the touch sensing structure may also be the same as that of the first or second embodiment. The composition, and the surface of the second transparent flexible substrate further comprises a scratch-resistant layer (not shown), which can block the entry of moisture into the service life.

At the time of manufacture, a release layer 70 is provided first. A first transparent flexible substrate 10 is formed on the upper surface of the release layer 70, as shown in FIG. 5(A), which can be formed by hardening after the coating method. A patterned light shielding layer 20 is formed on the first transparent flexible substrate 10. In the embodiment shown in FIG. 5B, the patterned light shielding layer 20 is located at the periphery of the upper surface 11 of the first transparent flexible substrate. The patterned light-shielding layer 20 can be a design pattern printed by at least one layer of ink, which can be formed by printing, can be designed with different patterns according to requirements, and can increase the beauty and uniqueness of the product, or can be used by photoresist lithography. Formed by law. A touch sensing structure 30 is formed on the patterned light shielding layer 20, and a transparent conductive layer 36 and a metal layer 37 are sequentially formed on the surface of the patterned light shielding layer 20, as shown in FIG. 5C, in which a transparent conductive layer is formed. The manner of the metal layer and the metal layer can be, for example, physical vapor deposition or chemical vapor deposition. Patterning is further performed to form a plurality of interconnected transparent transparent sensing strings 31 and a first peripheral line 32, as shown in FIG. 5(D), wherein the first peripheral line 32 is located in the patterned light shielding layer 20. The patterning process can be a roll-to-roll yellow process or a printing etch process. Finally, a plastic substrate 40 is injection molded on the upper surface of the touch sensing structure 30. As shown in FIG. 5(E), the molded plastic substrate 40 can be shot out by using the mold 80; and is separated from the release layer 70, such as Figure 5 (F) shows the formation of a touch panel; of course, it can also be formed in different ways according to requirements, such as: precision injection molding, micro injection Molding (micro-flow injection molding, microstructure injection) Molding), fine-tuning injection compression molding, micro-injection molding, precision lamination Resin molding, precision deposition (Deposition) resin molding, etc.

Furthermore, before the plastic substrate 40 is formed, an easy-adhesion layer 50 can be formed on the upper surface of the sensing structure 30, and the bonding between the sensing structure 30 and the plastic substrate 40 can be further strengthened by the easy-adhesion layer 50. Sex.

As shown in the sixth figure, another manufacturing method of the present invention is the same as that of the above-described embodiment, except that the manufacturing method of the touch sensing structure is different. At the time of production, a release layer 70 is also provided first. A first transparent flexible substrate 10 is formed on the upper surface of the release layer 70. A patterned light shielding layer 20 is formed on the first transparent flexible substrate 10. A touch sensing structure 30 is formed on the patterned light shielding layer 20, and a transparent conductive layer (not shown) and a metal layer (not shown) are sequentially formed on the surface of the patterned light shielding layer 20. Patterning is further performed to form a plurality of first transparent sensing series 31 and first peripheral lines 32 that are connected to each other. Further, a transparent substrate 35 is provided, and a transparent conductive layer (not shown) and a metal layer (not shown) are sequentially formed on the transparent substrate 35, and then patterned to form a second transparent sensing series 33 and The two peripheral lines 34 are on the transparent substrate 35. The patterning process can be a roll-to-roll yellow process or a printing etch process. The first transparent sensing series 31 and the second transparent sensing series 33 are interlaced with each other. The transparent substrate 35 and the first transparent sensing series 31 are bonded by the adhesive layer 90 in a roll-to-roll bonding manner. The adhesive layer further has an opening for electrically connecting the upper gold finger and the lower gold finger to the FPC.

Although the present invention has been disclosed above by way of example, it is not intended to limit the invention. The scope of the present invention is defined by the scope of the claims, and the scope of the invention is intended to be limited by the scope of the invention.

1‧‧‧Touch Sensing Panel

10‧‧‧First transparent flexible substrate

11‧‧‧ upper surface

12‧‧‧ Lower surface

20‧‧‧ patterned blackout layer

30‧‧‧Touch sensing structure

31‧‧‧First transparent sensing series

32‧‧‧First perimeter line

33‧‧‧Second transparent sensing series

34‧‧‧Second peripheral line

35‧‧‧Transparent substrate

36‧‧‧Transparent conductive layer

37‧‧‧metal layer

40‧‧‧Plastic substrate

50‧‧‧Easy layer

60‧‧‧Second transparent flexible substrate

70‧‧‧ release layer

80‧‧‧Mold

90‧‧‧Adhesive layer

The first figure shows the structure of the first embodiment of the touch sensing panel of the present invention.

The second figure shows a schematic structural view of a second embodiment of the touch sensing panel of the present invention.

The third figure shows a schematic structural view of a third embodiment of the touch sensing panel of the present invention.

The fourth figure shows a schematic structural view of a fourth embodiment of the touch sensing panel of the present invention.

The fifth (A) to (F) are schematic structural views of the manufacturing method of the touch sensing panel of the present invention.

FIG. 6 is a schematic structural view showing another manufacturing method of the touch sensing panel of the present invention.

1‧‧‧Touch Sensing Panel

10‧‧‧First transparent flexible substrate

11‧‧‧ upper surface

12‧‧‧ Lower surface

20‧‧‧ patterned blackout layer

30‧‧‧Touch sensing structure

31‧‧‧First transparent sensing series

32‧‧‧First perimeter line

40‧‧‧Plastic substrate

50‧‧‧Easy layer

Claims (13)

A touch sensing panel includes: a first transparent flexible substrate; a patterned light shielding layer on the first transparent flexible substrate; and a touch sensing structure on the patterned light shielding layer, having a plurality of transparent feelings And measuring a series of first peripheral lines, wherein the first peripheral line is located on the patterned light shielding layer; and a plastic substrate integrally formed on the touch sensing structure. The touch sensing panel of the first aspect of the invention, wherein the transparent sensing series further comprises a plurality of first transparent sensing series and a plurality of second transparent sensing series, the first transparent The sensing series and the second transparent sensing series are interlaced. The touch sensing structure of the first aspect of the invention, wherein the touch sensing structure further comprises a plurality of first transparent sensing series and a plurality of second transparent sensing series and a second peripheral line. The first transparent sensing series is located on the patterned light shielding layer, and the second transparent sensing series and the second peripheral circuit are located on a transparent substrate, and the transparent substrate is adhered to the first transparent layer. The first transparent sensing series and the second transparent sensing series are interlaced with each other, and the second peripheral circuit is located opposite to the patterned light shielding layer. The touch-sensing panel of any one of the preceding claims, further comprising a second transparent flexible substrate on the patterned light-shielding layer, wherein the touch-sensing structure is located at the first Two transparent flexible substrates. The touch-sensing panel of claim 4, wherein the second transparent flexible substrate surface further comprises a scratch-resistant layer. Such as the touch described in any one of claims 1 to 3 The sensing panel further includes an easy-to-layer layer between the touch sensing structure and the plastic substrate. The touch-sensing panel according to any one of the preceding claims, wherein the first transparent flexible substrate surface further comprises a scratch-resistant layer. A method for manufacturing a touch sensing panel, comprising: providing a release layer; forming a first transparent flexible substrate on the upper surface of the release layer; forming a patterned light shielding layer on the first transparent flexible substrate; forming a The touch sensing structure is disposed on the patterned light shielding layer, wherein the touch sensing structure has a plurality of transparent sensing series and a first peripheral line, wherein the first peripheral line is located in the patterned light shielding layer; The substrate is on the upper surface of the touch sensing structure; and is separated from the release layer to form a touch panel. The method of manufacturing the touch-sensing panel of claim 8, wherein the forming the touch-sensing structure further comprises: forming a first transparent sensing series and forming a first peripheral line formed in the patterning Forming a second transparent sensing series and a second peripheral line formed on a transparent substrate; and adhering the transparent substrate to the first transparent sensing series to make the first transparent The sensing series and the second transparent sensing series are interlaced with each other, and the second peripheral circuit is located opposite to the patterned light shielding layer. The method of manufacturing the touch-sensing panel of the invention, wherein the forming the touch-sensing structure further comprises: forming a second transparent flexible substrate on the upper surface of the patterned light-shielding layer. The method for manufacturing a touch sensing panel according to the eighth or the ninth aspect of the invention, further comprising: forming an easy-to-back layer on the touch sensing structure. The method for manufacturing a touch-sensing panel according to Item 8 or 9, wherein the method of forming the patterned light-shielding layer is a printing method. The method for manufacturing a touch-sensing panel according to claim 8 or 9, wherein the method of forming the patterned light-shielding layer is a photoresist lithography method.