CN103562826A - Front surface plate for touch panel, display device provided with same, and integrated sensor substrate with front surface plate for touch panel and touch panel sensor - Google Patents

Front surface plate for touch panel, display device provided with same, and integrated sensor substrate with front surface plate for touch panel and touch panel sensor Download PDF

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Publication number
CN103562826A
CN103562826A CN201280023308.7A CN201280023308A CN103562826A CN 103562826 A CN103562826 A CN 103562826A CN 201280023308 A CN201280023308 A CN 201280023308A CN 103562826 A CN103562826 A CN 103562826A
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CN
China
Prior art keywords
frame portion
mentioned
front panel
pigment
panel
Prior art date
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Pending
Application number
CN201280023308.7A
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Chinese (zh)
Inventor
柴田靖裕
松政健司
木本真依
阿部裕一郎
山川昌哉
桧林保浩
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Toppan Inc
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Toppan Printing Co Ltd
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Filing date
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Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Publication of CN103562826A publication Critical patent/CN103562826A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

The present invention realizes infrared communication in an infrared communication section provided below a frame section of a touch panel sensor front surface plate, without providing the frame section with a window for infrared communication in which an infrared transmissive film is formed. By forming the frame section of the front surface plate out of a material that absorbs visible light and transmits infrared light, wiring is hidden and it becomes unnecessary to provide the frame section with a window for infrared communication. Due to the foregoing, an increase in manufacturing steps and manufacturing costs is prevented, and disadvantages caused by unevenness produced by forming the infrared transmissive film on the frame section are addressed.

Description

Front panel for contact panel, possess the display device of this front panel and there is the one-piece type sensor base plate of front panel and contact panel sensor for contact panel
Technical field
The present invention relates to the contact panel front panel that display device is used, relate in more detail the contact panel front panel that possesses frame portion on periphery.
Background technology
In recent years, in the operating portion of the electronic equipments such as mobile phone, palm PC, adopt contact panel.Contact panel be liquid crystal panel, organic EL (electroluminescence, in the display frame of display device Electro-Luminesence) etc., laminating can detect finger etc. contact position location input device and form.As the mode of contact panel, be roughly divided into resistance membrane type, condenser type, optical profile type, ultrasonic type, owing to thering is separately advantages/disadvantages, therefore apply in a flexible way according to purposes.In condenser type, also have surface type and projection type.Projection type capacitance type touch-control panel possesses a plurality of electrodes that are arranged on grid in directions X and Y-direction, thereby can multi-point touch, now universal rapidly in.
In the capacitive contact panel sensor base plate of projection type, there are film-type and glass mould.Although film-type has advantages of light weight, is difficult for breaking, the formation of the wiring diagram of fine is very difficult, and the frame portion that covers wiring becomes large, the problem that has indication range to narrow down, and because of surperficial flatness poor, and on aesthetic property the problem poorer than glass mould.In intelligent mobile phone or flat computer, adopt glass mould more, estimate that glass mould will be popularized from now on.
Projection type capacitance type touch-control panel sensor base plate generally consists of five layers of structure, that is, metal line, the two-layer transparency electrode that directions X is used and Y-direction is used, the interlayer insulating film between two-layer transparency electrode, the protective seam on surface, consist of.In addition, it is roughly divided into following two kinds: by organic film, form interlayer insulating film, be formed with the one side structure of two-layer transparent electrode layer in the one side of glass substrate; Also use glass substrate as interlayer insulating film, two-layer transparent electrode layer is formed on dividually to two surface constructions on the two sides of glass.
In the display screens such as mobile phone, be generally used in the structure that outermost is provided with front panel (cover glass, cover glass) herein.In this cover glass, in order to hide the wiring etc. of periphery, be formed with the frame portion being formed by the high material of light-proofness.This frame portion can apply according to the design of machine color miscellaneous, decorative pattern.When frame portion is applied to color, decorative pattern, generally by screen painting, form frame portion.But, if due to frame portion is applied to color miscellaneous, decorative pattern, can make cost increase, therefore frame portion is black, be main flow (for example,, with reference to patent documentation 1).
As form this black frame portion time the ink or the resist that use, general use is dispersed with as the carbon of pigment or the material of titanium.The material volume resistivity that is dispersed with carbon or titanium is low, and relative dielectric constant is also high.Again, also adopt by resin and carry out coated carbon, thereby make specific insulation reach 1 * 10 11the material of the high resistance of Ω cm.
In mobile phone etc., possess for carrying out the infrared communication portion of infrared communication with other mobile phone etc., be usually configured in the below (the interior sides of mobile phone etc.) in the region that has frame portion of front panel.This is because frame portion is positioned at the outside of indication range, because its constituent ratio display device is also large, therefore can thereunder arrange the space of infrared communication portion configuration use.
An example that shows the cover glass of the contact panel that existing mobile phone etc. uses in Figure 20.In Figure 20, (a) being sectional view, is (b) planimetric map.Again, the double dot dash line shown in Figure 20 (b) represents the off-position of the sectional view of (a).
As shown in Figure 20 (a), (b), on cover glass 102, be formed with rectangular box-like frame portion 103, the inner side of frame portion 103 becomes viewing area 110.Because frame portion 103 is as described above formed by the high material of light-proofness, so words visible ray and infrared ray do not penetrate.So, in frame portion 103, the peristome that does not form light-proofness material is set, as shown in Figure 20 (a), (b), form infrared communication window 140 and window 150 for proximity sense.
Not shown infrared communication portion carries out infrared ray by infrared communication window 140 and sends reception.Again, not shown proximity sense is by proximity sense window 150, the close occasion of ear etc. when call, and perceptual object approaches and display part is turned off the light, thereby economizes on electricity.Herein, as shown in Figure 20 (a), (b), in infrared communication window 140, in infrared communication window 140 and its region around, by formation infrared transmitting films 141 such as screen paintings.By infrared transmitting film 141, the visible ray from 140 incidents of infrared communication window is carried out to shading, make infrared penetration, carry out infrared communication.At proximity sense, with in window 150, at proximity sense, use window 150 and its region around, by the semi-transmissive film of the not shown visible range of the formation such as screen painting again.
[prior art document]
[patent documentation]
[patent documentation 1] TOHKEMY 2009-69321 communique
[patent documentation 2] TOHKEMY 2007-178758 communique
Summary of the invention
[problem that invention will solve]
But, the occasion of infrared communication window 140 is set, owing to must form infrared transmitting film 141 on frame portion 103, therefore there is the undesirable condition that increases number of steps and manufacturing cost in frame portion 103.
As shown in Figure 20 (a), if form infrared transmitting film 141, with respect to the surface of frame portion 103, produce jump 141a again.Due to this jump 141a, front panel has the undesirable condition that becomes thicker.
Further, be provided with the occasion of infrared communication window 140 on the assigned address of frame portion 103, infrared communication portion will configure thereunder.That is, there is following inconvenience: infrared communication portion cannot be configured in to the optional position of the below of frame portion 103.
[solving the means of problem]
The object of the invention is in order to solve above-mentioned undesirable condition, and adopt following structure.
The present invention relates to the front panel that capacitance type touch-control panel is used.And, it is characterized in that, in this front panel, possesses frame portion, this frame portion is formed on the periphery in above-mentioned front panel one side, zoning goes out the viewing area of designated shape, and front panel consists of transparent material, and frame portion is pseudo-black layer, the potpourri that the black layer of this puppet contains two or more pigment is below 20% for the transmittance of the light of wavelength 400nm～wavelength 750nm.
Again, it is characterized in that, frame portion consists of the material of transmits infrared.
In addition, it is characterized in that, frame portion is more than 80% at the average transmittance of the scope of wavelength 850nm～1000nm.
Also have, it is characterized in that, the pigment of red colour system and blue series or red colour system and blue series and yellow system is at least contained in frame portion.
Again, it is characterized in that, the optical concentration of frame portion (OD value) is more than 3.
In addition, it is characterized in that, the specific insulation that forms the material of frame portion is 1.0 * 10 9more than Ω cm, relative dielectric constant is below 10.
Also have, it is characterized in that, frame portion forms by photoetching process or screen painting method.
Again, it is characterized in that, with the tangent plane of the frame portion of the face of front panel quadrature be trapezoid shape.
And another aspect of the present invention relates to possess the display device of front panel.This display device is characterised in that to possess: display panel, and this display panel has the pixel region that a plurality of Pixel arrangements become ranks shape, take input signal as basis, forms pixel in pixel region; Contact panel sensor, this contact panel sensor is installed to cover the mode of pixel region; And above-mentioned front panel.
In addition, it is characterized in that, this display device possesses reception or/and send ultrared infrared receiver or/and sending part; Infrared receiver or/and sending part be arranged on the front panel formed region that has a frame portion below.
And another aspect of the present invention relates to the one-piece type sensor base plate with front panel and capacitance type touch-control panel sensor.This one-piece type sensor base plate possesses: transparent front panel; Frame portion, this frame portion is formed on the periphery in the one side of front panel, and zoning goes out the viewing area of designated shape; Sensor layer, this sensor layer is layered in the one side and frame portion of front panel, with being integral of front panel; The 1st transparency electrode that sensor layer contains mutual insulating and the 2nd transparency electrode, frame portion is pseudo-black layer, the potpourri that the black layer of this puppet contains two or more pigment is below 20% for the transmittance of the light of wavelength 400nm～wavelength 750nm.
Also have, it is characterized in that, frame portion consists of the material of transmits infrared.
Again, it is characterized in that, frame portion is more than 80% at the average transmittance of the scope of wavelength 850nm～1000nm.
In addition, it is characterized in that, the pigment of red colour system and blue series or red colour system and blue series and yellow system is at least contained in frame portion.
Also have, it is characterized in that, the optical concentration of frame portion (OD value) is more than 3.
Again, it is characterized in that, the specific insulation that forms the material of frame portion is 1.0 * 10 9more than Ω cm, relative dielectric constant is below 10.
In addition, it is characterized in that, the metal line being connected with sensor layer is formed directly on the surface of frame portion.
Also have, it is characterized in that, frame portion forms by photoetching process or screen painting method.
Again, it is characterized in that, with the tangent plane of the frame portion of the face of front panel quadrature be trapezoid shape.
And another aspect of the present invention relates to a kind of display device that possesses the one-piece type sensor base plate of front panel and contact panel sensor.This display device is characterised in that to possess: display panel, and this display panel has the pixel region that a plurality of Pixel arrangements become ranks shape, take input signal as basis, forms pixel in pixel region; The one-piece type sensor base plate of installing to cover the mode of pixel region.
Also have, it is characterized in that, this display device possesses and receives or/and send ultrared infrared receiver or/and sending part, infrared receiver or/and sending part be arranged at the region that has frame portion that forms on front panel below.
[effect of invention]
According to the present invention, owing to thering is above-mentioned feature, therefore be possible shown in following.
; it is for using the front panel at contact panel; in this front panel; possess frame portion, this frame portion is formed on the periphery in above-mentioned front panel one side, the viewing area of zoning designated shape; front panel consists of transparent material; frame portion is pseudo-black layer, and the black layer of this puppet is below 20% for the transmittance of the light of wavelength 400nm～wavelength 750nm, therefore can hidden wiring.
Again, because frame portion consists of the material of transmits infrared, compare with the situation that infrared communication window and formation infrared transmitting film are set in frame portion, can simplify the manufacturing step as the cover glass of front panel, and can attenuate front panel.
In addition, because frame portion is more than 80% at the average transmittance of the scope of wavelength 850nm～1000nm, and transmits infrared positively.
Also have, because red colour system and blue series or red colour system and blue series and the yellow pigment that is are at least contained in frame portion, therefore can be used as pseudo-black.
Because the optical concentration (OD value) of frame portion is more than 3, can positively absorb visible ray again.
In addition, owing to forming the specific insulation of the material of frame portion, be 1.0 * 10 9more than Ω cm, relative dielectric constant is below 10, therefore even if be connected to the occasion of frame portion at metal line, also can guarantee the response of the contact panel of electric capacity combination.
Also have, because frame portion forms by photoetching process or screen painting method, therefore frame portion positively can be formed on to the assigned address of cover glass.
Again, because the tangent plane of the frame portion of the face with front panel quadrature is trapezoid shape, therefore can prevent from being configured in the wiring broken string of frame portion.
Further, the front panel using due to this contact panel possesses at least the frame portion that the pigment by red colour system and blue series, red colour system and blue series and yellow system forms, therefore form the situation of frame portion compares with the material that is dispersed with carbon or titanium as pigment of existing use, because the black of this frame portion more approaches the black of the black demonstration of viewing area mutually, therefore frame portion is not obvious, become for the good front panel of the quality of contact panel.
In addition, because display device possesses: display panel, this display panel has the pixel region that a plurality of Pixel arrangements become ranks shape, take input signal as basis, forms pixel in pixel region; Contact panel sensor, this contact panel sensor is installed to cover the mode of pixel region; And front panel, therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion, can simplify the manufacturing step as the cover glass of front panel, and can attenuate display device.
Also have, because possessing, this display device receives or/and send ultrared infrared receiver or/and sending part, infrared receiver or/and sending part be arranged at the region that has frame portion that forms on front panel below, therefore can be by infrared receiver or/and sending part be configured in any position in the region of frame portion.
Owing to thering is the one-piece type sensor base plate of front panel and capacitance type touch-control panel sensor, possess: transparent front panel again; Frame portion, this frame portion is formed on the periphery in the one side of front panel, the viewing area of zoning designated shape; Sensor layer, this sensor layer lamination is on the one side and frame portion of front panel, with being integral of front panel; Frame portion is the black layer of puppet below 20% for the transmittance of the light of wavelength 400nm～wavelength 750nm, therefore can hidden wiring.
In addition, because frame portion consists of the material of transmits infrared, therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion, can simplify the manufacturing step of one-piece type sensor base plate integral body, and the one-piece type sensor base plate of attenuate.
Also have, because frame portion is more than 80% at the average transmittance of the scope of wavelength 850nm～1000nm, transmits infrared positively.
Again, because red colour system and blue series or red colour system and blue series and the yellow pigment that is are at least contained in frame portion, therefore can be used as pseudo-black.
In addition, the pigment that contains violet due to frame portion, therefore compare with the pigment of red colour system or blue series, yellow system, easily near light absorbing wavelength 550nm, can become the higher black of optical concentration (OD value).
Also have, because the optical concentration (OD value) of frame portion is more than 3, can positively absorb visible ray.
Owing to forming the specific insulation of the material of frame portion, be 1.0 * 10 again, 9more than Ω cm, relative dielectric constant is below 10, can in frame portion, directly form metal line, and can guarantee the response of the contact panel of electric capacity combination.
In addition, the metal line being connected with sensor layer is formed directly on the surface of frame portion, therefore can simplify its formation.
Also have, because frame portion forms by photoetching process or screen painting method, therefore frame portion positively can be formed on to the assigned address of cover glass.
Again, because the tangent plane of the frame portion of the face with front panel quadrature is trapezoid shape, therefore can prevent the wiring broken string in the configuration of frame portion.
And, the present invention relates to a kind of display device that possesses the one-piece type sensor base plate of front panel and contact panel sensor.And, owing to possessing: display panel, this display panel has the pixel region that a plurality of Pixel arrangements become ranks shape, take input signal as basis, forms pixel in pixel region; The one-piece type sensor base plate of being installed to cover the mode of pixel region; therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion; can simplify the manufacturing step as the cover glass of front panel; because it can attenuate, therefore thickness that also can attenuate display device integral body.
Also have, this display device possesses reception or/and send ultrared infrared receiver or/and sending part, infrared receiver or/and sending part be arranged on the front panel formed region that has a frame portion below, therefore can be by infrared receiver or/and sending part be disposed at any position in the region of frame portion.
Further, because this display device possesses at least the frame portion that become with the pigment of yellow system with blue series, red colour system and blue series by red colour system, when viewing area is black demonstration, the black phase of this frame portion, compare with the occasion that the existing material that is used as pigment and is dispersed with carbon or titanium forms frame portion, because more approaching the black of the black demonstration of viewing area, therefore frame portion is not obvious, become the good display device of quality.
Accompanying drawing explanation
Fig. 1 is the floor map that shows the contact panel sensor of the 1st embodiment of the present invention.
Fig. 2 is the floor map of main structure that shows the contact panel sensor of the 1st embodiment.
Fig. 3 is the schematic cross-section of structure that shows the contact panel sensor of the 1st embodiment.
Fig. 4 is the schematic cross-section of structure that shows the contact panel sensor of the 1st embodiment.
Fig. 5 is the curve map of optical transmission characteristics that shows each pigment of the 1st embodiment.
Fig. 6 is the curve map of optical transmission characteristics that shows each pigment of the 1st embodiment.
Fig. 7 is the schematic cross-section that shows structure when integrated by the contact panel sensor of the 1st embodiment and display device.
Fig. 8 is the schematic cross-section that shows structure when integrated by the contact panel sensor of the 2nd embodiment and display device.
Fig. 9 is the schematic cross-section that shows structure when integrated by the contact panel sensor of the 3rd embodiment and display device.
Figure 10 is the schematic cross-section that shows structure when integrated by the contact panel sensor of the 4th embodiment and display device.
Figure 11 is the schematic diagram that shows the contact panel sensor of embodiments of the invention.
Figure 12 is the schematic diagram that shows the contact panel sensor of embodiments of the invention.
Figure 13 is the schematic diagram that shows the contact panel sensor of embodiments of the invention.
Figure 14 is the schematic diagram that shows the contact panel sensor of embodiments of the invention.
Figure 15 is the schematic diagram that shows the contact panel sensor of embodiments of the invention.
Figure 16 is the schematic diagram that shows the contact panel sensor of embodiments of the invention.
Figure 17 is the curve map of optical transmission characteristics that shows the frame portion of embodiments of the invention.
Figure 18 is the curve map of optical transmission characteristics that shows the frame portion of embodiments of the invention.
Figure 19 is the curve map of optical transmission characteristics that shows the frame portion of embodiments of the invention.
Figure 20 is the schematic diagram that shows the front panel structure of existing contact panel sensor.
Embodiment
[form carrying out an invention]
Referring to accompanying drawing, describe embodiments of the present invention in detail.
(the 1st embodiment)
Referring to figs. 1 through Fig. 7, the contact panel sensor of the 1st embodiment of the present invention is described.The contact panel sensor of present embodiment is directly formed by cover glass and touch sensing one.Metal line be arranged on to frame portion and form again.
Fig. 1 is the planimetric map of the contact panel sensor 1 of present embodiment.Fig. 2 is the planimetric map of details that shows the lamination structure of the contact panel sensor 1 shown in Fig. 1, shows the state before the formation of insulating protective film 9 of Fig. 1.Fig. 3 is the sectional view along the A-A line shown in Fig. 1, and Fig. 4 is the sectional view along the B-B line shown in Fig. 1.In Fig. 1～Fig. 4, in order to illustrate simplification, in the direction separately of directions X and Y-direction, schematically show the electrode pattern of 2 lines, but in fact, in directions X and Y-direction, be provided with more electrode.Fig. 7 is presented at and on the contact panel sensor of present embodiment, directly attaches display device and form while becoming one, therefore be equivalent to along the sectional view of the A-A line shown in Fig. 1.
Contact panel sensor 1 is the location input device being used in combination with display device such as liquid crystal panel 21 or organic EL panels.Contact panel sensor 1 has a plurality of electrodes that extend in directions X and a plurality of electrodes that extend in Y-direction, by detection point the capacitance variations of the electrode that contacts or closely connect, and determine the coordinate of the contact position of finger.
Specifically, contact panel sensor 1 possess cover glass 2, frame portion 3, a plurality of cross-over connection wiring the 4, the 1st dielectric film 5, metal line 6, as a plurality of transparency electrodes 7 of the 1st transparency electrode and as a plurality of transparency electrodes 8, the insulating protective film 9 of the 2nd transparency electrode.
Cover glass 2 is outmost transparent front panels of contact panel sensor 1, is the parts that touched by user.In the present embodiment, illustrate and use cover glass 2 as the example of front panel, but also can replace glass as front panel with thermotolerance transparent resin material.Again, also can on glass surface, paste the transparent panel being formed by resin material, by a plurality of layers, form.
Frame portion 3 is used the infrared transmitting material that absorbs visible ray and transmits infrared, is formed in the one side of cover glass 2.The task that frame portion 3 reaches, in the viewing area 10 of central window part zoning designated shape, is hidden the set wiring of periphery of contact panel sensor 1.
Frame portion 3 forms rectangular box-like according to the mode of the periphery zoning viewing area 10 at cover glass 2.Further, the flat shape of frame portion 3 is the rectangular box-like restrictions that are not subject to as present embodiment, can be any shapes such as heart, egg type, circle.Again, the outer peripheral shape of frame portion 3 (profile) can be similar to inside circumference shape (shape of viewing area 10), also can be dissimilar.
As shown in Figures 3 and 4, be trapezoid shape with the tangent plane of the frame portion 3 of a quadrature of cover glass 2.Herein, about the shape of the tangent plane of frame portion 3, for example, when being the occasion of inverted trapezoidal (hanging shape by the feet), transparency electrode 7 wirings such as grades of contact panel sensor 1 are broken string likely.Therefore, about the shape of the tangent plane of frame portion 3, favourable if trapezoid breaks relatively.So frame portion 3 forms trapezoid shape under resist formula and flow process condition.
Frame portion 3 is consisted of the photocured product that absorbs the pigment class resist of visible ray and transmits infrared.Herein, pigment class resist is exactly the pigment class of instigating in the resin that Pigments dissolves at solvent, and the photocured product of pigment class resist makes its curing resist with regard to referring to by this pigment class resist is carried out to photolithographic exposure-processed.
The degree that absorbs visible ray, generally the value also referred to as OD value with optical concentration (Optical Density) represents.Mensuration is according to JIS-K-7605 specification, with Macbeth optical concentration meter etc., carries out, and vertical transmitted light beam is radiated to sample, with log (logarithm) represent with do not have sample state ratio and obtain.The higher transmittance of optical concentration is lower, and during transmittance 100%, optical concentration becomes 0.
In the present embodiment, pigment class resist is the black resist of puppet of the potpourri that contains at least two or more pigment beyond carbon black and titanium dioxide.As an example, pigment used in the time of can enumerating the painted hyaline layer that forms colored filter, by at least mixing with C.I. paratonere 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 41, 48:1, 48:2, 48:3, 48:4, 57:1, 81, 81:1, 81:2, 81:3, 81:4, 97, 122, 123, 146, 149, 166, 168, 169, 176, 177, 178, 179, 180, 184, 185, 187, 192, 200, 202, 208, 210, 215, 216, 217, 220, 223, 224, 226, 227, 228, 240, 242, 246, 254, 255, 264, 270, 272, 273, 274, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, redness (RED) series pigments that 287 grades are representative, with C.I. pigment blue 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 22, 60, 64, blueness (BLUE) series pigments that 80 grades are representative, thereby be modeled as black.Also can use and take on a red color and the salt-forming compound of basic-dyeable fibre, acid dyes or other dyestuff of purple again.
In the present embodiment, except red colour system pigment and blue series pigment, also can further add yellow (YELLOW) series pigments again.Known yellow series pigments absorbs the low wavelength region may of visible ray, i.e. light below wavelength 500nm (for example, salt is controlled diligent work (clear and 40 years) " printing-ink classroom " (Japanese printed news society) P170～173).By add yellow series pigments in red colour system pigment and blue series pigment, yellow series pigments absorbs low wavelength visible ray, can more approach black.
Example as yellow (YELLOW) series pigments, can enumerate C.I. pigment yellow 1, 2, 3, 4, 5, 6, 10, 12, 13, 14, 15, 16, 17, 18, 20, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 42, 43, 53, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 83, 86, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 123, 125, 126, 127, 128, 129, 137, 138, 139, 144, 146, 147, 148, 150, 151, 152, 153, 154, 155, 156, 161, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 179, 180, 181, 182, 185, 187, 188, 193, 194, 198, 199, 213, 214, 218, 219, 220, 221.Again, also can and with the salt compound of making that is yellow basic-dyeable fibre, acid dyes and/or these dyestuffs.
In the pigment class resist of present embodiment, also can further add purple (Violet) series pigments.By adding violet pigment, do not compare with there is no the occasion of adding, easily near light absorbing wavelength 550nm, can become the higher black of optical concentration (OD value).
Further, as the example of purple (Violet) series pigments, can enumerate C.I. pigment violet 1,19,23,27,29,30,32,37,40,42,50.
Further, also can add the pigment such as orange (Orange) series pigments or green (Green) series pigments.As orange pigment, such as enumerating C.I. pigment orange 36,43,51,55,59,61,71,73 etc.As viridine green, such as enumerating C.I. pigment Green 7,10,36,37, the viridine greens such as 58.
The optical transmission characteristics that shows each pigment of redness, blueness, yellow, violet in Fig. 5 and Fig. 6.In Fig. 5 (a), show the C.I. paratonere 254,177 of red colour system pigment.In Fig. 5 (b), show the C.I. pigment blue 15 of blue series pigment: 6,15:3.In Fig. 6 (a), show the C.I. pigment yellow 13 9,185 of yellow series pigments.In Fig. 6 (b), show the C.I. pigment Violet 23 of violet pigment.As shown in these figures, the pigment of each colour system has the wavelength coverage that transmittance is low separately, by mixing the pigment of each colour system, can lower the transmittance in the scope integral body of the visible ray of wavelength 400nm～750nm.
The occasion of mixture of red colour system pigment and blue series pigment, preferably mixing ratio is 30:70～70:30, more preferably 40:60～60:40.If if outside the scope of the mixing ratio 30:70～70:30 of red colour system pigment and blue series pigment, near the disguise wavelength 550nm of easy visuognosis is low, and the optical concentration of frame portion 3 (OD value) is no more than 3, can not get good light-proofness.
The occasion of mixture of red colour system pigment, blue series pigment and yellow series pigments, the ratio of the red colour system pigment while being used as 100% with whole pigment is preferably 40～60%, and the ratio of blue series pigment is preferably 30～50%, and the ratio of yellow series pigments is preferably 5～20%.The occasion of mixing outside this scope, near the disguise wavelength 550nm of easy visuognosis reduces, and the optical concentration of frame portion 3 (OD value) is no more than 3, can not get good light-proofness.
When mixture of red colour system pigment, blue series pigment, yellow series pigments and violet pigment, the ratio of the red colour system pigment while being used as 100% with whole pigment is preferably 40～60%, the ratio of blue series pigment is preferably 30～50%, the ratio of yellow series pigments is preferably 5～20%, and the ratio of violet pigment is preferably 10～30%.When this scope is mixed outward, near the disguise wavelength 550nm of easy visuognosis is low, and the optical concentration of frame portion 3 (OD value) less than 3, can not get good light-proofness.
The pigment class resist of present embodiment can further contain following illustrative photo polymerization monomer, Photoepolymerizationinitiater initiater, sensitizer, multi-functional thiol, ultraviolet light absorber and polymerization inhibitor.
< photo polymerization monomer >
As photopolymerization monomer, can enumerate the various acrylate such as trimethylolpropane tris (methyl) acrylate, pentaerythrite three (methyl) acrylate, dipentaerythritol six (methyl) acrylate, oxirane modification trimethylolpropane tris (methyl) acrylate, epoxy pronane modification trimethylolpropane tris (methyl) acrylate and methacrylate etc.
< Photoepolymerizationinitiater initiater >
As Photoepolymerizationinitiater initiater, can enumerate 4-phenoxy group dichloroacetophenone, the 4-tert-butyl group-dichloroacetophenone, diethoxy acetophenone, to dimethyl amine benzoylformaldoxime, 1-(4-isopropyl phenyl)-2-hydroxy-2-methyl third-1-ketone, 1-hydroxycyclohexylphenylketone, 2-methyl isophthalic acid-[4-(methyl mercapto) phenyl]-2-morpholino third-1-ketone, 2-benzyl-2-dimethyl amido-1-(4-morpholino phenyl)-Ding-1-ketone, 2-(dimethyl amido)-2-[(4-aminomethyl phenyl) methyl]-1-[4-(4-morpholinyl) phenyl]-the acetophenone compounds such as 1-butanone, benzoin, benzoin methyl ether, benzoin ethylether, benzoin isopropyl ether, the benzoin compounds such as benzyl dimethyl ketal, diphenylketone, benzoyl benzoic acid, benzoyl benzoic acid methyl, 4-phenyl diphenylketone, hydroxy diphenyl ketone, propylene acidifying diphenylketone, 4-benzoyl-4 '-methyldiphenyl base sulfide, the diphenylketone compounds of 3,3 ', 4,4 '-tetra-(t-butyl peroxy carbonyl) diphenylketone etc., thioxanthones, CTX, 2-methyl thioxanthones, isopropyl thioxanthone, 2,4-diisopropyl thioxanthones, the thioxanthones compounds such as 2,4-diethyl thioxanthone, the chloro-s-triazine of 2,4,6-tri-, 2-phenyl-4, two (the trichloromethyl)-s-triazines of 6-, 2-(p-methoxyphenyl)-4, two (the trichloromethyl)-s-triazines of 6-, 2-(p-methylphenyl)-4, two (the trichloromethyl)-s-triazines of 6-, 2-piperonyl-4, two (the trichloromethyl)-s-triazines of 6-, two (the trichloromethyl)-6-styryl-s-triazines of 2,4-, 2-(naphthalene formyl-1-yl)-4, two (the trichloromethyl)-s-triazines of 6-, 2-(4-methoxyl-naphthalene formyl-1-yl)-4, two (the trichloromethyl)-s-triazines of 6-, 2,4-trichloromethyl-(piperonyl)-6-triazine, 2,4-trichloromethyl (4 '-methoxyl-styrene)-compound in triazine class such as 6-triazine, 1,2-acetyl caproyl, 1-[4-(thiophenyl) phenyl-, 2-(O-benzoyl oximes)], the oxime ester compound of O-(acetyl group)-N-(1-phenyl-2-oxo-2-(4 '-methoxyl-naphthyl) ethylidene) hydramine etc., two (2,4,6-trimethylbenzoyl) phenylphosphine oxide, the phosphine compounds such as 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide, 2,2 '-bis-(Chloro-O-Phenyl)-4,5,4 ', 5 '-tetraphenyl-1,2 '-bis-imidazoles, 2,2 '-bis-(o-methoxyphenyl)-4,4 ', 5,5 '-tetraphenyl double imidazole, 2,2 '-bis-(Chloro-O-Phenyl)-4, the glyoxaline compound of 4 ', 5,5 '-tetra-(p-methylphenyl) two imidazoles etc., 9,10-phenanthrenequione, camphorquinone, the quinoness such as EAQ, boric acid ester compound, carbazole compound, two titanocene complexes etc.
In these, more preferably contain at least one above Photoepolymerizationinitiater initiater of selecting in the group being formed by acetophenone compounds, phosphine compound and oxime ester compound.
These Photoepolymerizationinitiater initiaters can a kind of or optionally mix two or more uses with any ratio.With respect to the colorant of 100 weight portions, the content of Photoepolymerizationinitiater initiater can be 1.0～200 weight portions, preferably uses 1.0～150 weight portions.
< sensitizer >
As sensitizer, such as enumerating, take the unsaturated ketone that chalcone derivative or dibenzalacetone etc. are representative, take dibenzoyl or camphorquinone etc. is 1 of representative, 2-derovatives, benzoin derivatives, fluorene derivative, naphthoquinone derivatives, anthraquinone derivative, cluck ton derivant, thioxanthene derivative, xanthone derivant, thioxanthone derivates, coumarin derivative, ketone group coumarin derivative, anthocyanin derivant, Merocyanine derivatives, the polymethine pigment of oxonols derivant etc., acridine derivatives, azine derivatives, thiazine derivative, oxazine derivatives, indoline derivative thing, azulene derivatives, azulene derivatives, side acid derivative, derivatives of porphyrin, Tetraphenyl porphyrin derivative, triarylmethane derivatives, Tetrabenzoporphyrin derivant, four pyrazinyl porphyrazine derivants, phthalocyanine derivant, four azepine porphyrazine derivants, Si quinoxalinyl porphyrazine derivant, naphthalene cyanine derivant, inferior phthalocyanine derivant, pyran derivate, thiapyran derivant, four Luo Fuling derivants, wheel ene derivative, spiropyran derivatives, spiro oxazone derivative, sulphur spiropyran derivatives, metal arene complex, organic ruthenium complex, Michler's keton derivant etc.Further, so-called derivant in the present invention, means exactly for compound originally, replaces, or apply the reformed compounds such as oxidation, reduction with other atom or functional group.Derivant is in the major part of the textural skeleton that contains compound originally, as long as the structure of compound is originally similar, also can be and shows diverse character person.
Further, in concrete example, can enumerate " pigment handbook " (1986 years that the people such as the former letter in great river write, talk society), " chemistry of functional pigment " that the people such as the former letter in great river writes (1981, CMC), " the specific function material " that gloomy loyal three people such as bright in pond write (1986, CMC) sensitizer of recording in, there is no particular limitation for these.The sensitizer of the demonstration that also can contain other again, to the absorption of the light from ultraviolet near infrared region.
Among above-mentioned sensitizer, as specially suitable sensitizer, can enumerate thioxanthone derivates, Michler's keton derivant, carbazole derivates.More specifically; use 2; 4-diethyl thioxanthone, CTX, 2; 4-bis-clopenthixal ketones, ITX, ITX, the chloro-4-propoxyl group of 1-thioxanthones, 4; 4 '-bis-(dimethyl amido) diphenylketone, 4; 4 '-bis-(diethyl amido) diphenylketone, 4,4 '-bis-(ethyl-methyl amido) diphenylketone, N-ethyl carbazole, 3-benzoyl-N-ethyl carbazole, 3,6-dibenzoyl-N-ethyl carbazole etc.Sensitizer also can contain two or more sensitizers by any ratio.With respect to the Photoepolymerizationinitiater initiater of 100 weight portions, the content of sensitizer can be used 1.0～100 weight portions.
< multi-functional thiol >
Multi-functional thiol is the compound with two above mercaptan (SH) bases.Multi-functional thiol is by using together with Photoepolymerizationinitiater initiater, and in radical polymerization process after irradiation, as chain-transferring agent effect, owing to producing, do not subject to the sulfur-containing radicals that the polymerization due to oxygen hinders, resulting colored filter has high sensitivity with colored composition.Especially, be preferably the multifunctional aliphatic mercaptan that SH base has been binding on the fatty groups such as methylene, ethene.
For example, can enumerate ethanthiol, the last of the ten Heavenly stems two mercaptan, 1, the two thiopropionates of 4-butylene glycol, 1, the two mercaptoacetates of 4-butylene glycol, ethylene glycol bis mercaptoacetate, ethylene glycol bis thiopropionate, trimethylolpropane tris mercaptoacetate, trimethylolpropane tris thiopropionate, three hydroxyl the first and second alkane three (3-sulfydryl butyric ester), trimethylolpropane tris (3-sulfydryl butyric ester), trimethylolpropane tris (3-mercaptopropionic acid ester), pentaerythrite four mercaptoacetates, pentaerythrite tetrathio propionic ester, pentaerythrite four (3-mercaptopropionic acid ester), dipentaerythritol six (3-mercaptopropionic acid ester), tri-thiol propionic acid three (2-hydroxyethyl) isocyanuric acid ester ester, 1, 4-dimethyl sulfydryl benzene, 2, 4, 6-tri-thiol-s-triazine, 2-(N, N-dibutyl amido)-4, 6-dimercapto-s-triazine etc.These multi-functional thiol's classes are can be separately a kind of or mix two or more uses.
For the colorant of 100 weight portions, multi-functional thiol's content is preferably 0.05～100 weight portion, more preferably 1.0～50.0 weight portions.By using multi-functional thiol more than 0.05 weight portion, can obtain better resistance to developability.While using mercaptan (SH) base to be a simple function mercaptan, can not get the raising of so resistance to developability.
< ultraviolet light absorber, polymerization inhibitor >
The pigment class resist of present embodiment is by containing ultraviolet light absorber or polymerization inhibitor, and can control pattern form and the sharpness of setting-out portion.As ultraviolet light absorber, for example, can enumerate 2-[4-[(2-hydroxyl-3-(dodecyl and tritriacontyl) oxygen base propyl group) oxygen base]-2-hydroxy phenyl]-4, two (2,4-the 3,5-dimethylphenyl)-1,3,5-triazines of 6-, 2-(2-hydroxyl-4-[1-octyl group oxygen base carbonyl ethoxy] phenyl)-4, the hydroxyphenyltriazinuv system of two (4-phenyl)-1,3,5-triazines of 6-etc., 2-(5-methyl-2-hydroxy phenyl) benzotriazole, 2-(2H-benzotriazole-2-yl)-4, two (1-methyl isophthalic acid-phenylethyl) phenol of 6-, the benzotriazole of 2-(the 3-tert-butyl group-5-methyl-2-hydroxy phenyl)-5-chlorobenzotriazole etc., 2,4-dihydroxy diphenylketone, 2-hydroxyl-4-octyloxy diphenylketone, 2,2 ', 4, the diphenyl ketones such as 4 '-tetrahydroxy diphenylketone, phenyl salicytate, the salicylate classes such as p-t-butylphenyl salicylate, ethyl-2-cyano group-3, the cyanoacrylates such as 3 '-diphenylacrylate ester, 2,2,6,6 ,-tetramethyl piperidine-1-oxygen base (tri acetylacetonate-amine-N-oxygen base), two (2,2,6,6-tetramethyl-4-piperidyl)-sebacate, poly-[[6-[(1,1,3, the 3-tetrabutyl) amido]-1,3,5-triazines-2,4-bis-bases] hindered amines such as [(2,2,6,6-tetramethyl-4-piperidyl) imido grpup] etc., can be used alone or these are mixed to two or more use.
Again, as polymerization inhibitor (I), for example can enumerate methylnaphthohydroquinone, tertiary butylated hydroquinone, 2, 5-bis--tertiary butylated hydroquinone, 4-benzoquinones, 4-metoxyphenol, 4-methoxyl-1-naphthols, the hydroquinone derivatives such as tert-butyl catechol and oxybenzene compound, coffee thiazine, two-(1-dimethyl benzyl) coffee thiazine, 3, the amines such as 7-dioctyl coffee thiazine, dibutyl thiamine disulfide copper formate, diethyl thiamine disulfide copper formate, diethyl thiamine disulfide formic acid manganese, copper and the manganese salt compounds such as Diphenyl disulfide amine formic acid manganese, 4-nitrosophenol, N-nitroso-diphenylamine, N-nitroso-cyclohexyl hydramine, nitroso compound and ammonium salt or the aluminium salt etc. such as N-nitroso-phenyl hydramine, can be used alone or mix two or more these and use.
With respect to the colorant of 100 weight portions, the total content of ultraviolet light absorber and polymerization inhibitor is 0.01～20 weight portion, preferably can use 0.05～10 weight portion.By using ultraviolet light absorber or polymerization inhibitor more than 0.01 weight portion, can obtain better resolution.
The frame portion 3 forming about the photocured product by pigment class resist, in order fully to cover the visible ray of incident, the optical concentration of frame portion 3 (OD value) is preferably more than 3.Again, in the scope of the visible ray of wavelength 400nm～750nm, transmittance is preferably below 20%, more preferably below 10%.Again, carry out infrared communication in order to make infrared penetration, the average transmittance of frame portion 3 in the scope of wavelength 850nm～1000nm is preferably more than 80%.
Again, the relative dielectric constant of the photocured product of pigment class resist must preferably be of below 10, more preferably below 5.0.This is the response in order to ensure the contact panel of electric capacity combination.In addition, if relative dielectric constant, below 4.0, can suppress the formation of the electric capacity of pigment class resist.
Relative dielectric constant is herein with the DIELECTRIC CONSTANT ε of medium and the DIELECTRIC CONSTANT ε of vacuum 0ratio ε/ε 0represent, no matter unit used is the characteristic of getting certain value.Also have relative dielectric constant be only called to specific inductive capacity, with relative dielectric constant indistinction situation about showing, but feature of the present invention only has the meaning of relative dielectric constant, the performance difference because of them is not defined.
The mensuration of relative dielectric constant is to make test film according to the arbitrary specification in JIS-K-6911, JIS-C-6481, ASTM-D-150, use impedance analysis device (LCR meter) to carry out, in addition also can be on aluminium-vapour deposition electrode, the thickness that is appointment by pigment class resist film forming, then come instrumentation AM aluminum metallization electrode and the test film made thereon with impedance analysis device.
In the frame portion 3 of present embodiment, in order to form metal line 6 and transparency electrode 7,8, must guarantee electrical insulating property again.That is, the specific insulation of pigment class resist, even if be existing 1 * 10 8Ω cm is also insufficient, is preferably 1 * 10 9more than Ω cm, more preferably 1 * 10 12more than Ω cm.Specific insulation less than 1 * 10 when the photocured product of pigment class resist 9the occasion of Ω cm, formed metal line and transparency electrode wiring meeting short circuit (short) in the architrave forming at the photocured product by pigment class resist, the meeting of contact panel sensor cannot regular event.
Specific insulation herein, is exactly the resistance of per unit volume, and it is for using cubical relative two surfaces of each limit 1cm as two interelectrode resistance of electrode by measuring, and the intrinsic absolute value of the material obtaining.Also have specific insulation be only called to resistivity, with specific insulation indistinction situation about showing, but feature of the present invention only has the meaning of specific insulation, the difference of performance because of them is not defined.
The mensuration of specific insulation is to use according to the arbitrary specification in JIS-K-6911, JIS-K-6271, ASTM-D-257, IEC-60093 to make test film, between circular electrode, by insulating-resistance meter, measure the method (double rings electrode method) of resistance, or carry out with following method: on the test film according to JIS-K-7194 specification made, the needle electrode of four is placed on straight line, steady current is flow through between two probes in outside, be determined at the potential difference (PD) occurring between two probes of inner side, thereby try to achieve resistance (four probe method).Double rings electrode method is applicable to 10 8～10 16the determination of resistivity of the insulator of Ω, it measures the resistance value after 1 minute for 500V is applied between electrode, is tried to achieve the method for specific insulation and surface resistivity by electrode shape.On the other hand, four probe method is applicable to 10 -2～10 7the determination of resistivity of the electric conductor of Ω, is multiplied by measured resistance thickness of sample, correction coefficient RCF (Resistivity Correction Factor) and calculates specific insulation.These suitably distinguish use according to the scope of measured specific insulation.
Cross-over connection wiring 4 is used to be had the material of electric conductivity and forms, on the lid in viewing area 10, at the parallel directions X in the one side with viewing area 10 and interrupted in the Y-direction of quadrature and be arranged in ranks shape therewith.Cross-over connection wiring 4 is the transparency electrodes 7 of arranging for being connected to directions X.
A plurality of the 1st dielectric films 5 arrange corresponding to each cross-over connection wiring 4.Each the 1st dielectric film 5 intersects with corresponding cross-over connection wiring 4, and forms according to the mode of extending in Y-direction, and the central portion of the cross-over connection wiring 4 in each the 1st dielectric film 5 and directions X partly overlaps.The 1st dielectric film 5 has the function as the interlayer dielectric of 8 of cross-over connection wiring 4 and transparency electrodes.In order to make cross-over connection wiring 4 and the transparency electrode 7 can be in being connected of directions X, the 1st dielectric film 5 be not overlapping with connect up 4 both ends of cross-over connection.
Metal line 6 is formed directly in frame portion 3, and is electrically connected to the transparency electrode 7 and 8 of the periphery that is positioned at viewing area 10.In the present embodiment, metal line 6 consists of the duplexer of Mo/Al/Mo (molybdenum/aluminium/molybdenum), but in addition, also can form by Au (gold), Ag (silver), Ag alloy etc.
Transparency electrode 7 is for detection of going out X coordinate.Transparency electrode 7 is used has electric conductivity and transparent material, is formed on the cover glass 2 in viewing area 10.Transparency electrode 7 is interrupted and be arranged in ranks shape in directions X and Y-direction, is electrically connected on the cross-over connection wiring 4 in directions X adjacency.Transparency electrode 7 is for example formed by ITO (indium tin oxide).
Transparency electrode 8 is for detection of going out Y coordinate.In the present embodiment, the material that transparency electrode 8 use are identical with transparency electrode 7, the step identical with transparency electrode 7 form.Transparency electrode 8 is respectively listed in Y-direction and extends the transparency electrode of arranging in Y-direction 7, as shown in Figures 3 and 4, transparency electrode 8 on the 1st dielectric film 5 with cross-over connection 4 crossings on different level of connecting up.
Insulating protective film 9 is according to the mode that covers cross-over connection wiring 4, metal line 6, transparency electrode 7 and 8, frame portion 3, except the lead portion of contacting metal wiring 6, is formed on almost on whole of cover glass 2.Insulating protective film 9 has the function of diaphragm, formed each inscape on its protection cover glass 2.
Further, in the contact panel sensor 1 of present embodiment, cross-over connection wiring 4, dielectric film 5, transparency electrode 7 and 8, insulating protective film 9 are equivalent to sensor layer.
In Fig. 7, be presented on the contact panel sensor 1 of present embodiment, directly attach the form while becoming one as the liquid crystal panel 21 of display device.As shown in Figure 7, liquid crystal panel 21 possesses layer 25 and the back side glass 26 such as polarizing plate 22 and 27, front glass 23, colored filter 24, liquid crystal/electrode/TFT.
Liquid crystal panel 21 is by not shown backlight, by back side glass 26 sides, is thrown light on.The shown image of liquid crystal panel 21, is operated by contact panel sensor 1 by visuognosis by the viewing area 10 of the inner side of the frame portion 3 of formation on cover glass 2.Again, compare with liquid crystal panel 21, contact panel sensor 1 only becomes large at the partial width with frame portion 3.
In the present embodiment; as mentioned above; because frame portion 3 forms to absorb visible ray and to penetrate ultrared infrared ray light screening material; therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion; can simplify the manufacturing step as the cover glass 2 of front panel, and can attenuate.Further, owing to can infrared communication window not being arranged on to the ad-hoc location of frame portion 3, therefore infrared communication portion can be arranged on to any position of the below of frame portion 3.
Again, the photocured product of the black anticorrosive additive material that the photocured product of the pigment class resist that present embodiment is used is used with existing colored filter is compared, relative dielectric constant is low and specific insulation is high, therefore frame portion 3 does not need insulation, can in frame portion 3, directly form sensor layer or metal line 6.In addition, owing to not needing the dielectric film of covering frame portion 3, and reduce number of steps, therefore can realize, reduce costs and improve yield rate.
In addition, in the present embodiment, the material of frame portion 3 is carried out to photolithographic exposure-processed.By screen painting, form the occasion of frame portion 3, although the concave-convex surface chap of frame portion 3, if form frame portion 3 by photoetching process, the surface of frame portion 3 cunning that flattens.So, can in frame portion 3, directly, stably form metal line 6.
, as existing technology, the occasion of infrared communication window is set in frame portion 3 herein, must in frame portion 3, forms infrared transmitting film, if form infrared transmitting film, there is jump in the surface of frame portion 3 relatively.And, if metal line 6 is set on this jump, there is the undesirable condition of easy broken string.But, in the occasion of present embodiment, owing to not producing in frame portion 3 jump that infrared transmitting film causes, therefore metal line 6 can be formed on to any position of frame portion 3.
(the 2nd embodiment)
With reference to Fig. 8, the contact panel sensor of the 2nd embodiment of the present invention is described.In the 2nd embodiment, the part identical with the 1st embodiment is with identical symbol, and description thereof is omitted, and different parts is only described.Fig. 8 is presented at and on the contact panel sensor 1 of present embodiment, directly attaches liquid crystal panel 21 and form while becoming one.In addition, in the present embodiment, the tangent plane of frame portion 3 is also the trapezoid shape identical with the 1st embodiment, below omits in the accompanying drawings the record align trapezoidal shape.
The contact panel sensor 1 of present embodiment directly forms integratedly on this aspect of structure of touch sensing on cover glass 2, identical with the 1st embodiment, but forms after the 2nd insulation courses 11 in frame portion 3, and difference on this aspect of structure of metal line 6 is set.
In the 1st embodiment, the specific insulation of the material of formation frame portion 3 is large, and relative dielectric constant is low, and by the material of frame portion 3 is carried out to photolithographic exposure-processed, so that it solidifies, makes its surface smoothing, thereby directly forms metal line 6 in frame portion 3., when wanting more positively to guarantee the occasion of insulativity, or form frame portion 3 and the concavo-convex thicker occasion on its surface as shown in Figure 8, preferably forms the 2nd insulation course 11 in frame portion 3 by screen painting herein, by it, metal line 6 is set.
In the present embodiment; as described above; because frame portion 3 forms to absorb the infrared transmitting material of visible ray and transmits infrared; therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion; can simplify the manufacturing step as the cover glass 2 of front panel, and can attenuate.Further, owing to can infrared communication window not being arranged on to the ad-hoc location of frame portion 3, therefore infrared communication portion can be arranged on to any position of the below of frame portion 3.
Again, as present embodiment, the occasion of the structure of metal line is set in frame portion, because frame portion 3 does not produce the jump due to infrared transmitting film, therefore metal line can be formed to any position in frame portion 3.
(the 3rd embodiment)
(a), (b) with reference to Fig. 9, describe the contact panel sensor of the 3rd embodiment of the present invention.In the 3rd embodiment, the part identical with the embodiment of explanation is so far with identical symbol, and description thereof is omitted, and different parts is only described.Fig. 9 (a) shows the state before assembling, and (b) of Fig. 9 is presented at the form that makes the occasion that liquid crystal panel 21 becomes one on the contact panel sensor 1 of present embodiment.
As shown in Fig. 9 (a), contact panel sensor 1 consists of with glass 31 these two parts cover glass 2 and touch sensing.On cover glass 2, be formed with frame portion 3, this frame portion 3 consists of the infrared transmitting material that absorbs visible ray and transmits infrared.With in glass 31, the same with the embodiment of explanation so far at touch sensing, in its one side, form (in Fig. 9, omit and record) and the metal lines 6 such as a plurality of cross-over connection wiring the 4, the 1st dielectric film 5, transparency electrode 8.On liquid crystal panel 21, at end configuration space thing 28.
The accompanying drawing that Fig. 9 (b) becomes one for attaching above-mentioned three.Between touch sensing is with glass 31 and liquid crystal panel 21, only the part at sept 28 forms air gap layer 29.
In the present embodiment; as above-mentioned; because frame portion 3 forms to absorb visible ray and to penetrate ultrared infrared transmitting material; therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion; can simplify the manufacturing step as the cover glass 2 of front panel, and can attenuate.Further, owing to can infrared communication window not being arranged on to the ad-hoc location of frame portion 3, therefore infrared communication portion can be arranged on to any position of the below of frame portion 3.
(the 4th embodiment)
With reference to Figure 10, the contact panel sensor of the 4th embodiment of the present invention is described.In the 4th embodiment, the part identical with the embodiment of explanation is so far with identical symbol, and description thereof is omitted, and different parts is only described.Form when Figure 10 is presented at and uses liquid crystal panel 21 to become one on the contact panel sensor 1 of present embodiment.
As shown in figure 10, in the present embodiment, the same with aforementioned the 3rd embodiment, contact panel sensor 1 consists of by glass 31 these two parts cover glass 2 and touch sensing.They are different aspect following from the 3rd embodiment: use touch sensing with glass 31 as interlayer insulating film, on this two sides, form transparency electrode 8 grades and metal line 6.
In the present embodiment; as described above; because frame portion 3 forms to absorb the material of visible ray and transmits infrared; therefore compare with the occasion that infrared communication window and formation infrared transmitting film are set in frame portion; can simplify the manufacturing step as the cover glass 2 of front panel, and can attenuate.Further, can infrared communication window be arranged on to the ad-hoc location of frame portion 3, therefore infrared communication portion can be arranged on to any position of the below of frame portion 3.
Further, the thin portion of contact panel sensor of the present invention is not subject to the restriction of above-mentioned embodiment, can carry out various distortion.As above-mentioned embodiment, the structure of four kinds is described, but is not defined as these structures.For example, not only dielectric film is formed on to a part of parts such as electrode, certainly also can forms on the whole wider laminated insulation layer at panel.
Again, in the above-described embodiment, as contact panel sensor, use projection type capacitance type touch-control panel and describe, but be not defined as condenser type, certainly can be applied to have the contact panel of the variety of way of frame portion.
In addition, in the above-described embodiment, the display screen of mobile phone etc. that the infrared communication portion that uses infrared ray transceiving communication is arranged on to the below of frame portion has been described, but has been not limited only to this.Certainly can be applied to have infrared ray sends or infrared receiver in the display device of arbitrary function, such as the television receiver etc. that possesses infra-red remote control light accepting part.
(the 5th embodiment)
In the present embodiment, the formation the same with aforementioned the 1st to 4 embodiment used screen painting method to replace this point of photoetching process different in the formation of frame portion.As screen painting ink, can the pigment class resist based on from present embodiment, remove the constituent after Photoepolymerizationinitiater initiater, by known method, be adjusted to screen painting and use.As this screen painting is become to the screen painting version of needed pattern with pigment class ink printing, use the galley of polyester fibers, nylon fiber yarn and stainless steel metal yarn, flexible few, can be coated with ink or stick with paste on this aspect compared with heavy back, preferably use stainless steel.Thickness is decided by the count that is called the half tone of mesh count, by selecting the mesh count at 1 cun of interval to adjust.Use ink, half tone and squeegee for screen painting, by screen printer, print, in order to make organic solvent evaporation, optionally implement prebake conditions.In prebake conditions, can use heated air circulation type baking oven or hot plate, IR baking oven.After prebake conditions, by carrying out heat treated, obtain any architrave pattern.In heat treated, can use heated drying baking oven, coordinate the condition of cure of ink for screen painting, at 150 ℃, to the temperature range of 230 ℃ of left and right, in the scope of 10 minutes to 60 minutes, suitably heat.
[embodiment]
In order to illustrate in greater detail the present invention, enumerate following examples, but the present invention is not limited by these embodiment.In addition, in this embodiment, describe the manufacture method of the illustrated structure of aforementioned the 2nd embodiment in detail.
(embodiment 1)
Figure 11～Figure 16 is the accompanying drawing of manufacturing step that shows the contact panel sensor 1 of the present embodiment.In Figure 11～Figure 16, (a) be sectional view, (b) be planimetric map.Again, the double dot dash line shown in (b) of Fig. 9～14 represents the off-position of the sectional view of (a).
The formation > of < 1. frame portions 3
First, in the one side of cover glass 2, by spin coating, be coated with the aftermentioned pigment class resist that absorbs visible ray and transmits infrared.
Then, by pressure Reduction Dryer, remove after solvent part, with closely connecing Exposure mode (extra-high-pressure mercury vapour lamp) with 200mJ/cm 2expose.As photomask for use in exposure, use the photomask of implementing pattern on soda-lime glass with Cr (chromium) herein.
Then, be mixed with Na 2cO 3(sodium carbonate), NaHCO 3in the aqueous alkali of (sodium bicarbonate), develop.
And, 235 ℃ of thermal treatments of carrying out 20 minutes, form the frame portion 3 shown in Figure 11.
The formation > of < 2. cross-over connection wirings 4
First, in the formation shown in Figure 11, by DC magnetic control sputtering plating mode, by limit, in the mode of the heating sputter of 170 ℃ of heating edge sputters, form ITO film.
Then, the positive resist of novolaks class that spin coating is common, 105 ℃ of prebake conditions, then with 100mJ/cm 2after exposing, be mixed with NaOH (NaOH), Na 2cO 3aqueous alkali in carry out positive development.Herein, exposure is used and is closely connect Exposure mode (extra-high-pressure mercury vapour lamp), as photomask for use in exposure, uses the photomask of implementing pattern on soda-lime glass with Cr (chromium).
And, use oxalic acid ((COOH) 2) carry out etching, by after positive resist blanket exposure, be mixed with NaOH, Na 2cO 3aqueous alkali in peel off positive resist, as shown in figure 12, by ITO film, form cross-over connection wiring 4.
The formation > of < 3. the 1st dielectric film 5 and the 2nd dielectric film 11
First, in the formation shown in Figure 12, by spin coating, be coated with insulating material (Osaka organic chemistry industry system, goods number: CHIRON-ZA100).
Then, 80 ℃ of prebake conditions, to remove solvent part, use and closely connect Exposure mode (extra-high-pressure mercury vapour lamp) with 250mJ/cm 2expose.As photomask for use in exposure, use the photomask of implementing pattern on quartz glass with Cr herein.
Then, be mixed with Na 2cO 3, NaHCO 3aqueous alkali in develop.
And, 235 ℃ of thermal treatments of carrying out 20 minutes.
So process, as shown in figure 13, side by side form the 2nd dielectric film 11 in the 1st dielectric film 5 in cross-over connection wiring 4 and frame portion 3.
In this step, owing to forming the 1st dielectric film 5 and the 2nd dielectric film 11 simultaneously, compare with separating the occasion forming, can not cause the increase of manufacturing step and manufacturing cost.
The formation > of < 4. metal lines 6
First, in the formation shown in Figure 13, by DC magnetic control sputtering plating mode, form in order in a vacuum Mo layer, Al layer, Mo layer, thereby form the Mo/Al/Mo duplexer of three layers of lit-par-lit structure.
Then, the positive resist of novolaks class that spin coating is common, 105 ℃ of prebake conditions, then with 100mJ/cm 2after exposing, be mixed with NaOH, Na 2cO 3aqueous alkali in carry out positive development.Herein, exposure is used and is closely connect Exposure mode (extra-high-pressure mercury vapour lamp), as photomask for use in exposure, uses the photomask of implementing pattern on soda-lime glass with Cr (chromium).
And the etchant (etching solution) of three constituent classes by phosphoric acid, nitric acid, water carries out etching, by after positive resist blanket exposure, peels off positive resist by the water miscible alkali stripper of silicate.
So, as shown in figure 14, on the 2nd dielectric film 11, form metal line 6.
< 5. transparency electrodes 7 and 8 formation >
First, in the formation shown in Figure 14, by DC magnetic control sputtering plating mode, by limit, in the mode of the heating sputter of 170 ℃ of heating edge sputters, form ITO film.
Then, the positive resist of novolaks class that spin coating is common, 105 ℃ of prebake conditions, then with 100mJ/cm 2after exposing, be mixed with NaOH, Na 2cO 3aqueous alkali in carry out positive development.Herein, exposure is used and is closely connect Exposure mode (extra-high-pressure mercury vapour lamp), as photomask for use in exposure, uses the photomask of implementing pattern on soda-lime glass with Cr (chromium).
And, with oxalic acid, carry out etching, by after positive resist blanket exposure, be mixed with NaOH, Na 2cO 3aqueous alkali in peel off positive resist,
So, as shown in figure 15, by ITO film, form transparency electrode 7,8.
The formation > of < 6. insulating protective films 9
First, in the formation shown in Figure 15, by spin coating, be coated with covering material (JSR system, goods number: NN901).
Then, 80 ℃ of prebake conditions, to remove solvent part, use and closely connect Exposure mode (extra-high-pressure mercury vapour lamp) with 150mJ/cm 2expose.As photomask for use in exposure, use the photomask of implementing pattern on quartz glass with Cr herein.
Then, be mixed with Na 2cO 3, NaHCO 3aqueous alkali in develop.
And, 225 ℃ of thermal treatments of carrying out 20 minutes.
So, as shown in figure 16, form insulating protective film 9, thereby manufacture and complete contact panel sensor 1.
< 7. is about pigment class resist >
The pigment class resist 1 that above embodiment is used is the resist making in alkali soluble resin that red colour system pigment and blue series Pigments dissolve at solvent.As red colour system pigment and blue series pigment, use C.I. paratonere 254 and C.I. pigment blue 15: 3 pigment that mix with the ratio of 1:1.Again, the pigment ratio in solid constituent is 40%.The manufacture method that below shows alkali soluble resin and pigment class resist 1.
[synthesizing of alkali soluble resin]
The acetic acid 1-methoxyl-2-propyl ester that adds 800 parts in reaction vessel, limit, to nitrogen injection limit heating in container, drips the potpourri of following monomer and thermal polymerization, thereby carries out polyreaction.
Figure BDA0000414219580000301
After dropping, and after abundant heating, be added in acetic acid 1-methoxyl-2-propyl ester of 50 parts and be dissolved with the potpourri of the azobis isobutyronitrile of 2 parts, then continue reaction and obtain the solution of acryl resin.
In this resin solution, the mode that the solid constituent of take is 30 % by weight, add acetic acid 1-methoxyl-2-propyl ester, thereby modulation acrylic resin soln forms alkali soluble resin solution.The weight average molecular weight of acryl resin is about 20000.
[the 1st pigment class resist]
Uniform stirring mixes after the potpourri of following component, uses the beaded glass of diameter 1mm, with sand mill disperse 5 little after, with the filtrator of 5 μ m, filter, thereby obtain the dispersion of opacifier.
Red pigment: C.I. paratonere 254
(BASF AG's system " the red B-CF of Irgapho ") 30 parts
Blue pigment: C.I. pigment blue 15: 3
(BASF AG's system, the blue GBP of IRGALITE) 30 parts
2 parts of spreading agents (aginomoto Finetechno company system " Ajisper PB821 ")
110 parts of alkali soluble resin solution
Then, be uniformly mixed the potpourri of following component until evenly, filter with the filtrator of 5 μ m, thereby obtain the 1st pigment class resist.
172 parts of above-mentioned dispersions
68 parts of alkali soluble resin solution
30 parts of multifunctional polymerization monomers (the synthetic system in East Asia " Aronix M-400 ")
Light trigger (Ciba Specialty Chemicals company's system " Irgacure369 ")
15 parts
Sensitizer 4,4 '-bis-(diethyl amido) diphenylketone
(hodogaya chemical industry (thigh) system " EAB-F ") 3 parts
112 parts of cyclohexanone
200 parts of propylene glycol monomethyl ether
In Figure 17, show and use this material with the thickness of 3 μ m, to form the optical transmission characteristics of the occasion of the 3-1 of frame portion.As shown in Figure 17, at wavelength, be at least in 850nm～1000nm, transmittance surpasses 80%.
The evaluation method > of frame portion for < contact panel front panel
[optical concentration (OD value) mensuration]
In the one side of glass substrate, by spin coating, carry out coating pigment class resist, with pressure Reduction Dryer, remove after solvent part, with closely connecing the blanket exposure that Exposure mode (extra-high-pressure mercury vapour lamp) carries out 200mJ.Then, be mixed with Na 2cO 3(sodium carbonate), NaHCO 3in the aqueous alkali of (sodium bicarbonate), develop, 235 ℃ of thermal treatments of carrying out 20 minutes, to make optical concentration (OD value) mensuration substrate.Substrate to gained, uses the D-200II processed of Macbeth company, thereby the optical concentration (OD value) carrying out as the pointer of light-proofness is measured.
[relative dielectric constant mensuration]
In the one side of glass substrate, by vapour deposition method, form the pattern of aluminium conducting film.Be formed with on the glass substrate of this conductive film pattern, by spin coating, carrying out coating pigment class resist, with pressure Reduction Dryer, removing after solvent part, with closely connecing the blanket exposure that Exposure mode (extra-high-pressure mercury vapour lamp) carries out 200mJ.Then, be mixed with Na 2cO 3(sodium carbonate), NaHCO 3in the aqueous alkali of (sodium bicarbonate), develop, 235 ℃ of thermal treatments of carrying out 20 minutes.Further, on this dyed layer, by vapour deposition method, form aluminium conductive film pattern, to make relative dielectric constant mensuration substrate.Substrate to gained, uses Solartron company impedance analysis device 1260 types processed, under the condition of 24 ℃ of voltage 5V, temperature, with the frequency of 100Hz, 100KHz, 1MHz, measures respectively relative dielectric constant.
[specific insulation mensuration]
In the one side of glass substrate, by spin coating, carry out coating pigment class resist, with pressure Reduction Dryer, remove after solvent part, with closely connecing the blanket exposure that Exposure mode (extra-high-pressure mercury vapour lamp) carries out 200mJ.Then, be mixed with Na 2cO 3(sodium carbonate), NaHCO 3in the aqueous alkali of (sodium bicarbonate), develop, 235 ℃ of thermal treatments of carrying out 20 minutes, to make specific insulation mensuration substrate.The specific insulation of filming to gained, is used double rings electrode method, under the condition of 24 ℃ of voltage 5V, temperature, by Weak current analyzer (Keithley company system " 237 type "), measures.Now, when the too low and unmeasured occasion of resistance value, use four probe method, use resistrivity meter (Analytech of Mitsubishi Chemical Loresta MCP-T610 processed) to measure.
[energizing test]
By the contact panel sensor of manufacturing of the present invention, in order to confirm whether there is problem as circuit, implement energizing test.Using line and gap (L/S) is the photomask of the size of 30 μ m/30 μ m, makes and is formed with the contact panel sensor that takes out wiring.Between the connecting portion and transparency electrode 7 and transparency electrode 8 of the external circuit of the taking-up wiring of contact panel sensor, use test instrument (OHM motor digital versatile tester processed MCD-007) and enforcement conducting confirmation.As determinating reference, by what confirm conducting, be made as zero, by produce being made as of poor flow *.
(embodiment 2)
In the present embodiment, except as red colour system pigment and blue series pigment, following use is mixed with C.I. paratonere 254 and C.I. pigment blue 15 with the ratio of 1:1: 6 the 2nd pigment class resist replaces C.I. paratonere 254 and C.I. pigment blue 15: beyond 3, obtain similarly to Example 1 the 3-2 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 254
(BASF AG's system " the red B-CF of Irgapho ") 30 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 30 parts
(embodiment 3)
In the present embodiment, except as red colour system pigment and blue series pigment, following use is mixed with C.I. paratonere 177 and C.I. pigment blue 15 with the ratio of 1:1: 6 the 3rd pigment class resist 3 replaces C.I. paratonere 254 and C.I. pigment blue 15: beyond 3, obtain similarly to Example 1 the 3-3 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 177
(BASF AG's system " the red A2B of CROMOPHTAL ") 30 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 30 parts
(embodiment 4)
In the present embodiment, except as red colour system pigment and blue series pigment, following use usingd the ratio of 5:4:1 and is mixed with C.I. paratonere 254 and C.I. pigment blue 15: 6 and replace C.I. paratonere 254 and C.I. pigment blue 15 as the 4th pigment class resist 4 of the C.I. pigment Violet 23 of violet pigment: beyond 3, obtain similarly to Example 1 the 3-4 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 254
(BASF AG's system " the red B-CF of Irgapho ") 30 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 24 parts
Violet pigment: C.I. pigment Violet 23
(Japan Ink (thigh) system, the purple R6200 of LIONOGEN) 6 parts
(embodiment 5)
In the present embodiment, except as red colour system pigment and blue series pigment, following use usingd the ratio of 5:4:1 and is mixed with C.I. paratonere 254 and C.I. pigment blue 15: 6 and replace C.I. paratonere 254 and C.I. pigment blue 15 as the 5th pigment class resist of the C.I. pigment yellow 13 9 of yellow series pigments: beyond 3, obtain similarly to Example 1 the 3-5 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 254
(BASF AG's system " the red B-CF of Irgapho ") 30 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 24 parts
Yellow uitramarine: C.I. pigment yellow 13 9
(BASF AG's system, " the yellow D1819 of PALIOTOL ") 6 parts
(embodiment 6)
In the present embodiment, except as red colour system pigment and blue series pigment, following use usingd the ratio of 5:4:1 and is mixed with C.I. paratonere 177 and C.I. pigment blue 15: 6 and replace C.I. paratonere 254 and C.I. pigment blue 15 as the 6th pigment class resist 6 of the C.I. pigment yellow 185 of yellow series pigments: beyond 3, obtain similarly to Example 1 the 3-6 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 177
(BASF AG's system " the red A2B of CROMOPHTAL ") 30 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 24 parts
Yellow uitramarine: C.I. pigment yellow 185
(BASF AG's system, " the yellow D1155 of PALIOTOL ") 6 parts
(embodiment 7)
In the present embodiment, except as red colour system pigment and blue series pigment, following use usingd the ratio of 5:4:1 and is mixed with C.I. paratonere 177 and C.I. pigment blue 15: 6 and replace C.I. paratonere 254 and C.I. pigment blue 15 as the 7th pigment class resist 7 of the C.I. pigment yellow 13 9 of yellow series pigments: beyond 3, similarly to Example 1, obtain the 3-7 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 177
(BASF AG's system " the red A2B of CROMOPHTAL ") 30 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 24 parts
Yellow uitramarine: C.I. pigment yellow 13 9
(BASF AG's system, " the yellow D1819 of PALIOTOL ") 6 parts
(embodiment 8)
In the present embodiment, except as red colour system pigment and blue series pigment, following use usingd the ratio of 4:3.2:0.8:2 and is mixed with C.I. paratonere 177 and C.I. pigment blue 15: 6 and replace C.I. paratonere 254 and C.I. pigment blue 15 as the C.I. pigment yellow 13 9 of yellow series pigments and violet pigment and the 8th pigment class resist 8 of C.I. pigment Violet 23: beyond 3, obtain similarly to Example 1 the 3-8 of frame portion for contact panel front panel.
Red pigment: C.I. paratonere 177
(BASF AG's system " the red A2B of CROMOPHTAL ") 24 parts
Blue pigment: C.I. pigment blue 15: 6
(Japan Ink (thigh) system, LIONOGEN indigo plant 7706) 19.2 parts
Yellow uitramarine: C.I. pigment yellow 13 9
(BASF AG's system, " the yellow D1819 of PALIOTOL ") 4.8 parts
Violet pigment: C.I. pigment Violet 23
(Japan Ink (thigh) system, the purple R6200 of LIONOGEN) 12 parts
(embodiment 9)
In the present embodiment, except the formation method as frame portion 3, by using the photoetching process that closely connects Exposure mode to change to beyond screen painting method, obtain similarly to Example 1 the 3-9 of frame portion for contact panel front panel.The formation method of the 3-9 of frame portion in the present embodiment is described below.
The formation > of < 8. frame portions 3
First; in the one side of cover glass 2; the aftermentioned pigment class screen painting ink of visible ray and transmits infrared will be absorbed; use possesses screen painting version (stainless steel mesh 500) and the squeegee of required pattern; at the gap 2mm of speed, screen painting version and base material of 70 ° of squeegee angles, print speed printing speed 50mm/ second, under the condition of the amount of being pressed into 1mm, carry out screen painting by screen printer (East Sea essence machine (thigh) SERIA SSA-PC605IP processed).Then, on hot plate, under 100 ℃ of conditions of 100 seconds, remove after solvent part, 235 ℃ of thermal treatments of carrying out 20 minutes, similarly form the 3-9 of frame portion with the frame portion 3 shown in Figure 11.
[screen painting ink]
Uniform stirring mixes after the potpourri of following component, and the beaded glass of use diameter 1mm disperses, after 5 hours, with the filtrator of 5 μ m, to filter with sand mill, thereby obtains the dispersion of opacifier.
Red pigment: C.I. paratonere 254
(BASF AG's system " the red B-CF of Irgapho ") 30 parts
Blue pigment: C.I. pigment blue 15: 3
(BASF AG's system, the blue GBP of IRGALITE) 30 parts
2 parts of spreading agents (aginomoto Finetechno company system " Ajisper PB821 ")
110 parts of alkali soluble resin solution
[the 9th pigment class resist]
Then, be uniformly mixed the potpourri of following component until evenly, filter with the filtrator of 5 μ m, thereby obtain the 9th pigment class resist.
172 parts of above-mentioned dispersions
Multifunctional polymerization monomer
(the synthetic system in East Asia " Aronix M-400 ") 50 parts
Trimethyl-1,30 parts of 3-pentanediol mono isobutyrates
(comparative example 1)
As for verifying the comparative example of effect of the present invention, be uniformly mixed the potpourri of following component until evenly, filter to make the carbon class resist of pigment concentration 47% with the filtrator of 5 μ m, similarly form the 3-10 of frame portion with the frame portion 3 shown in Figure 11.
[carbon class resist]
161 parts of carbon black dispersion (imperial state's pigment (thigh) system " TPBK-234C ")
The propylene glycol monomethyl ether solution of acid anhydrides bunching compound with the epoxy acrylate of fluorene skeleton
(resin solid constituent concentration=56.1 quality %, chemistry (thigh) V259ME processed of Nippon Steel)
40 parts
Multifunctional polymerization monomer
(Osaka organic industry (thigh) system " UADPH80A (molecular weight 764) ") 10 parts
0.3 part of light trigger (BASF system " Irgacure OXE02 ")
Sensitizer 4,4 '-bis-(diethyl amido) diphenylketone
(hodogaya chemical industry (thigh) system " EAB-F ") 1.5 parts
140 parts of cyclohexanone
140 parts of propylene glycol monomethyl ether
5 parts of adjuvants ((thigh) ADEKA system " Adeka Polyether G-400 ")
The measurement result and the energizing test result that in table 1, show the measured value of the OD value in the various embodiments described above and comparative example and the value of per unit thickness, specific insulation, relative dielectric constant.
[table 1]
In arbitrary embodiment, the measured value of OD value is more than 3, all obtains sufficient light-proofness.So, for OD value is become more than 3, the OD value of the every 1.0 μ m of thickness of pigment class resist is preferably more than 1.0, more preferably more than 1.3.
Again, in arbitrary embodiment, specific insulation is 1 * 10 9more than Ω cm, be further 1 * 10 12more than Ω cm, compared with comparative example 1 significantly and to have improved, can guarantee not produce the abundant insulativity of the short circuit of metal line and transparency electrode.
In addition, in arbitrary embodiment, relative dielectric constant is below 4.1 or 4.0, can guarantee the response of the contact panel of electric capacity combination.
The optical transmission characteristics that shows the 3-1～3-8 of frame portion in embodiment 1～8 in Figure 17～Figure 19.(a) of Figure 17 and (b) the middle embodiment 1,2,3 that shows the pigment resist that uses the pigment that only contains redness and blue series.The embodiment 5,6,7 that shows the pigment resist that uses the pigment that contains redness, blueness, yellow system in Figure 18 (a).In Figure 18 (b), show embodiment 4 of the pigment resist that uses the pigment that contains redness, blueness, violet, the embodiment 8 of the pigment resist of the pigment that contains redness, blueness, yellow, violet with use.In Figure 19, show to use the embodiment 7 of the pigment resist of the pigment that contains redness, blueness, yellow system, the embodiment 8 of the pigment resist of the pigment that contains redness, blueness, yellow, violet with use.
In the ultrared scope of arbitrary wavelength 850nm～1000nm, transmittance is more than 80%.Again, in the scope of the visible ray of arbitrary wavelength 400nm～750nm, because transmittance is below 20%, be further below 10%, frame portion forms pseudo-black layer.
According to Figure 18 (b) and Figure 19, in the embodiment 5,6,7,8 of the pigment resist that contains yellow uitramarine in use, compare with other embodiment, can confirm that the transmittance of the scope below wavelength 500nm has the tendency that becomes less.Again, on yardstick, although do not represent in the accompanying drawings, in the embodiment 4,8 of the pigment resist that contains violet pigment in use, compare with other embodiment, can confirm that the transmittance in the scope of the visible ray centered by wavelength 530～580nm becomes less.
In addition, in each above-mentioned embodiment, to the contact panel sensor 1 that disposes metal line 6 and transparency electrode 7,8 is pasted with the liquid crystal panel 21 that disposes colored filter 24, integrated form is illustrated, but front panel of the present invention is for disposing metal line and transparency electrode in the one side at a sheet glass, on another side, dispose the contact panel sensor that is called on-cell type (externally embedded type) and the integrated form of liquid crystal panel of colored filter 24, also applicable.
[utilizability in industry]
The present invention can utilize the location input device of using as the electronic equipment of mobile phone or palm PC etc.
Symbol description
1 contact panel sensor
2,102 cover glasses
3,103 frame portions
4 cross-over connection wirings
5 the 1st dielectric films
6 metal lines
7,8 transparency electrodes
9 insulating protective films
10,110 viewing areas
11 the 2nd dielectric films
21 liquid crystal panels
22,27 polarizing plates
23 front glass
24 colored filters
The layer of 25 liquid crystal/electrode/TFT etc.
26 back side glass
28 septs
29 air gap layer
31 touch sensing glass
140 infrared communication windows
141 infrared transmitting films
150 proximity sense windows

Claims (21)

1. a capacitance type touch-control panel front panel, it is the capacitance type touch-control panel front panel that is used in contact panel, it is characterized in that:
In above-mentioned front panel, possess frame portion, this frame portion is formed on the periphery in above-mentioned front panel one side, and zoning goes out the viewing area of designated shape,
Above-mentioned front panel consists of transparent material,
Above-mentioned frame portion is pseudo-black layer, and the potpourri that the black layer of this puppet contains two or more pigment is below 20% for the transmittance of the light of wavelength 400nm～wavelength 750nm.
2. a capacitance type touch-control panel front panel, it is the capacitance type touch-control panel front panel that is used in contact panel, it is characterized in that:
In above-mentioned front panel, possess frame portion, this frame portion is formed on the periphery in above-mentioned front panel one side, and zoning goes out the viewing area of designated shape,
Above-mentioned front panel consists of transparent material,
Above-mentioned frame portion consists of the material of transmits infrared.
3. capacitance type touch-control panel front panel as claimed in claim 2, is characterized in that, above-mentioned frame portion is more than 80% at the average transmittance of the scope of wavelength 850nm～1000nm.
4. capacitance type touch-control panel front panel as claimed in claim 3, is characterized in that, the pigment of red colour system and blue series or red colour system and blue series and yellow system is at least contained in above-mentioned frame portion.
5. the capacitance type touch-control panel front panel as described in any one in claim 1 to 4, is characterized in that, the optical concentration (OD value) of above-mentioned frame portion is more than 3.
6. as the capacitance type touch-control panel front panel of any one in claim 1 to 5, it is characterized in that, the specific insulation that forms the material of above-mentioned frame portion is 1.0 * 10 9more than Ω cm, relative dielectric constant is below 10.
7. the capacitance type touch-control panel front panel as described in any one in claim 1 to 6, is characterized in that, above-mentioned frame portion forms by photoetching process or screen painting method.
8. the capacitance type touch-control panel front panel as described in any one in claim 1 to 7, is characterized in that, with the tangent plane of the above-mentioned frame portion of the face of above-mentioned front panel quadrature be trapezoid shape.
9. a display device, is characterized in that possessing:
Display panel, this display panel has the pixel region that a plurality of Pixel arrangements become ranks shape, take input signal as basis, in above-mentioned pixel region, forms pixel;
Contact panel sensor, this contact panel sensor is installed to cover the mode of above-mentioned pixel region; And
Capacitance type touch-control panel front panel in claim 1 to 8 described in any one.
10. display device as claimed in claim 9, is characterized in that:
Above-mentioned display device possesses and receives or/and send ultrared infrared receiver or/and sending part,
Above-mentioned infrared receiver or/and sending part be arranged at the region that has frame portion that forms on above-mentioned front panel below.
11. 1 kinds of one-piece type sensor base plates, it is the one-piece type sensor base plate with front panel and capacitance type touch-control panel sensor, it is characterized in that possessing:
Transparent front panel;
Frame portion, this frame portion is formed on the periphery in the one side of above-mentioned front panel, and zoning goes out the viewing area of designated shape;
Sensor layer, this sensor layer lamination in the above-mentioned one side of above-mentioned front panel and above-mentioned frame portion, with above-mentioned being integral of front panel,
The 1st transparency electrode that the sensor layer contains mutual insulating and the 2nd transparency electrode,
Above-mentioned frame portion is pseudo-black layer, and the potpourri that the black layer of this puppet contains two or more pigment is below 20% for the transmittance of the light of wavelength 400nm～wavelength 750nm.
12. 1 kinds of one-piece type sensor base plates, it is the one-piece type sensor base plate with front panel and capacitance type touch-control panel sensor, it is characterized in that possessing:
Transparent front panel;
Frame portion, this frame portion is formed on the periphery in the one side of above-mentioned front panel, and zoning goes out the viewing area of designated shape;
Sensor layer, this sensor layer lamination in the above-mentioned one side of above-mentioned front panel and above-mentioned frame portion, with above-mentioned being integral of front panel,
The 1st transparency electrode that the sensor layer contains mutually insulated and the 2nd transparency electrode,
Above-mentioned frame portion consists of the material of transmits infrared.
13. one-piece type sensor base plates as claimed in claim 12, is characterized in that, above-mentioned frame portion is more than 80% at the average transmittance of the scope of wavelength 850nm～1000nm.
14. one-piece type sensor base plates as claimed in claim 13, is characterized in that, the pigment of red colour system and blue series or red colour system and blue series and yellow system is at least contained in above-mentioned frame portion.
15. one-piece type sensor base plates as described in any one in claim 11 to 14, is characterized in that, the optical concentration (OD value) of above-mentioned frame portion is more than 3.
16. one-piece type sensor base plates as described in any one in claim 11 to 15, is characterized in that, the specific insulation that forms the material of above-mentioned frame portion is 1.0 * 10 9more than Ω cm, relative dielectric constant is below 10.
17. one-piece type sensor base plates as claimed in claim 16, is characterized in that, the metal line being connected with the sensor layer is formed directly on the surface of above-mentioned frame portion.
18. one-piece type sensor base plates as described in any one in claim 11 to 17, is characterized in that, above-mentioned frame portion forms by photoetching process or screen painting method.
19. one-piece type sensor base plates as described in any one in claim 11 to 18, is characterized in that, with the tangent plane of the above-mentioned frame portion of the face of above-mentioned front panel quadrature be trapezoid shape.
20. 1 kinds of display device, is characterized in that possessing:
Display panel, this display panel has the pixel region that a plurality of Pixel arrangements become ranks shape, take input signal as basis, in above-mentioned pixel region, forms pixel; And
To cover the one-piece type sensor base plate described in any one in the claim 11 to 19 that the mode of above-mentioned pixel region installs.
21. display device as claimed in claim 20, is characterized in that:
Above-mentioned display device possesses and receives or/and send ultrared infrared receiver or/and sending part,
Above-mentioned infrared receiver or/and sending part be arranged at the region that has frame portion that forms on above-mentioned front panel below.
CN201280023308.7A 2011-05-18 2012-05-10 Front surface plate for touch panel, display device provided with same, and integrated sensor substrate with front surface plate for touch panel and touch panel sensor Pending CN103562826A (en)

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