CN201345096Y

CN201345096Y - Patterned transparent conducting film for transparent substrate and touch panel

Info

Publication number: CN201345096Y
Application number: CNU2008201830512U
Authority: CN
Inventors: 柯建信
Original assignee: KE HANYU
Current assignee: KE HANYU
Priority date: 2008-12-16
Filing date: 2008-12-16
Publication date: 2009-11-11
Anticipated expiration: 2018-12-16

Abstract

The utility model relates to a patterned transparent conducting film for a transparent substrate and a touch panel. The transparent substrate is provided with the patterned transparent conducting film. The transparent conducting film is formed of a shield capable of being repeatedly used and an engraved pattern zone formed on the shield. The patterned transparent conducting film is formed by steps of arranging the shield on the transparent conducting film, carrying out sputtering or evaporation, and uniformly attaching and depositing a conducting material on the transparent substrate.

Description

The patterning transparent conductive film and the contact panel of transparency carrier

Technical field

The patterning transparent conductive film of the relevant a kind of transparency carrier of the utility model aims to provide a kind of patterning transparent conductive film that can be applicable in the contact panel.

Background technology

Press, in recent years, the man-computer interface of thoughts and feelings formula, as: contact panel (Touch Panel), be widely used to electronic product miscellaneous, as: GPS (GPS), PDA(Personal Digital Assistant), mobile phone (cellular phone) and palmtop computer (Hand-held PC) etc., to replace traditional input media (as: keyboard and mouse etc.), significantly change in this design, not only promoted the man-computer interface compatibility of these electronic installations,, and vacateed more spaces more because of having omitted traditional input media, for large-scale display panel is installed, make things convenient for the user to browse data.

Traditionally, the employed touch technology of contact panel, difference according to its start principle, though can be divided into optical profile type, the ultrasonic formula, infrared-type, condenser type and resistance-type etc. several, only, at present still with the touch technology of resistance-type (Film on Glass), be widely used in most on the various end product, consulting shown in Figure 1 is traditional resistor formula contact panel, this kind contact panel adopts the detecting voltage mode to respond to, comprise the transparent conductive film (ITOFilm) 20 that a transparent conducting glass (ITOGlass) 10 and that is coated with tin indium oxide (ITO) conductive layer 101 is made by tin indium oxide (ITO) material 201, wherein on this transparent conducting glass 10 and the transparent conductive film 20, utilize screen printing technology, conductive silver glue (silver paste) is printed the position at contiguous its edge to this transparent conducting glass 10 respectively and the transparent conductive film 20 respectively, to form required

circuit

11 and 21, succeed, again in respectively forming an insulation course 12 in regular turn on this

circuit

11 and 21,22 and one following

layer

13,23, and insert a plurality of spaced spaced points (dotspacer) 30 at this transparent conducting

glass

10 and 20 of transparent conductive films, and after on this

circuit

11 and 21 respectively, inserting flexible

flat cable

111 and 211, get final product respectively this following layer 13 of mat, 23, this transparent conducting glass 10 and transparent conductive film 20 involutions are integral, produce required contact panel.

When the user directly touches a certain position on this transparent conductive film 20 with finger, pen or other medium, the transparent conductive film 20 of this position will form conducting on electric with this transparent conducting glass 10, and in correspondence position generation potential difference (PD), the control circuit of circuit board is promptly according to by these flexible

flat cables

111 and 211 poor from these

circuits

11 and 21 different potentials that sensed, further calculate the coordinate figure at touch location place, and on the respective coordinates position of this contact panel display highlighting.

General speech, traditional electric resistance touch-control panel is according to the different wiring mode of its circuit, can be divided into different distribution patterns such as four lines (4 Wire), five lines or six lines again, now be example with the five-line contact panel, consult shown in Figure 2ly that its contact panel is at four circuits of X and Y direction, all be laid in contiguous its periphery on the transparency conducting layer of glass substrate, then only lay a circuit on its transparent conductive film, be used for detecting the magnitude of voltage of (sampling) X and Y-axis, amount to 5 circuits.When the user bumps on this contact panel P point position with finger or style of writing, control circuit will be to the power supply of 5 volts of two circuits 1 on the transparency conducting layer of this glass substrate and 2 supplies, and make other two-lines road 4 and 5 is in ground state (ground, be that voltage equals zero), at this moment, touch position changes because of impedance, to produce pressure drop, make circuit on this transparent conductive film can be sampled to the magnitude of voltage of Vpy, otherwise, when the power supply of control circuit to 5 volts of two circuits 2 on the transparency conducting layer of this glass substrate and 4 supplies, and when making other two-lines road 1 and 5 be in ground state (ground, promptly voltage equals zero), the circuit on this transparent conductive film will be sampled to the magnitude of voltage of Vpx, after the calculating comparison of the magnitude of voltage of these Vpx and Vpy via control circuit, can learn the coordinate position at this P point place rapidly.

The method of making transparent conducting glass at present is a main flow with traditional gold-tinted photolithography techniques still, as shown in Figure 3, it makes flow process is sputter layer of transparent conductive layer 15 on a clear glass 14, re-lay a photoresist layer 91 on this transparency conducting layer 15, secondly drawing one has the light shield 92 of pattern 921 to be arranged at this photoresist layer 91 tops, shine via ultraviolet ray, chemical change does not take place in the photoresist layer 91 that is covered by pattern 921, the photoresist layer 91 that utilizes developer solution will produce chemical change cleans to be removed, and the transparency conducting layer 15 that makes part that pattern 921 is not set exposes outside, also make the pattern 921 on the light shield 92 transfer on this photoresist layer 91, the exposed transparency conducting layer 15 of etching again, at last this photoresist layer 91 is removed fully, promptly formed transparent conducting glass 10 with patterning.

The not only required apparatus expensive of above-mentioned yellow light lithography method for making, the composition and the developer solution of used photoresist layer 91 are harmful chemical solution, not only the operating personnel's at scene health are caused to seriously influence, and also environmental ecology are caused serious pollution.When removing the photoresist layer 91 that produces chemical change,, can make the pattern 921 that is needed on this photoresist layer 91 break away from or decompose, reduce and produce yield as the soaking and washing overlong time with developer solution.

The utility model content

In view of this, the technical matters that the utility model solved is to provide a kind of transparency carrier especially to can be applicable to patterning transparent conductive film in the contact panel.

Take off purpose on reaching, transparency carrier of the present utility model is provided with the patterning transparent conductive film, this transparent conductive film is by the pattern area that is formed with hollow out in the reusable shielding, and be arranged at this shielding on the transparency carrier and carry out sputter or evaporation, the material that will conduct electricity evenly adheres to and is deposited on the transparency carrier, and forms required patterning transparent conductive film.

The beneficial effects of the utility model are, not only processing procedure is easy and the utility model processing procedure in do not need to utilize liquid handling fully, and be dry process, can improve to practise has the disappearance of utilizing the gold-tinted processing procedure can produce the waste liquid serious environment pollution.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION figure that commonly uses contact panel;

Fig. 2 is a floor map of commonly using touch panel structure provided middle electro-conductive glass and transparent conductive film;

Fig. 3 is for practising the schematic flow sheet that the gold-tinted processing procedure is arranged;

Fig. 4 is the structural perspective of transparent conductive panel in the utility model;

Fig. 5 is the structural representation of transparency carrier and shielding in the utility model;

Fig. 6 is the STRUCTURE DECOMPOSITION figure of contact panel in the utility model.

[figure number explanation]

Transparent conducting glass 10 conductive indium-tin oxide layers 101

Circuit 11 flexible flat cables 111

Insulation course 12 following layers 13

Clear glass 14 transparency conducting layers 15

Transparent conductive film 20 tin indium oxide materials 201

Circuit 21 flexible flat cables 211

Insulation course 22 following layers 23

Spaced points 30 transparency carriers 40

Transparent conductive film 42 shieldings 50

Pattern area 51 first transparent conductive panels 60

First transparency carrier, 61 first transparent conductive films 62

First circuit, 63 first insulation courses 64

First following layer, 65 hardening coats 66

Second transparent conductive panel, 70 second transparent conductive films 72

Second circuit, 73 second insulation courses 74

Second following layer 75 is every ball 80

Photoresist layer 91 light shields 92

Pattern 921

Embodiment

Characteristics of the present utility model can be consulted the detailed description of the graphic and embodiment of this case and obtained to be well understood to.

The patterning transparent conductive film and the contact panel of the utility model transparency carrier, as shown in Figure 4, this transparency carrier 40 is provided with patterning transparent conductive film 42, this transparency carrier 40 can be glass substrate, PET, PC, PIC or acryl material, and this transparent conductive film 42 utilizes reusable shielding 50 sputters or evaporation to constitute, please consulting shown in Figure 5 its simultaneously is example with the sputter, this shielding 50 can be provided with a stainless steel substrates for metal material, and by machining mode (for example laser moulding), in this shielding 50, be formed with pierced pattern district 51, should shield 50 and be arranged at transparency carrier 40 tops, can be by sputter with the conduction material, can be indium tin oxide (ITO) or transparent conductive oxide (TCO), evenly adhere to and be piled up in this transparency carrier 40 surfaces and form patterning transparent conductive film 42.

And transparency carrier of the present utility model is applied in the contact panel, and as shown in Figure 6, this is touch panel structure provided to include at least: one first transparent conductive panel 60, one second transparent conductive panel 70, and some separating balls 80; Wherein:

This first transparent conductive panel 60, it is provided with one first transparency carrier 61, this first transparency carrier 61 can be glass substrate, PET, material such as PC or acryl, on this first transparency carrier 61 and be provided with patterning first transparent conductive film 62, and this first transparent conductive film 62 utilizes a reusable shielding sputter or evaporation to constitute, and this first transparency carrier 61 and first transparent conductive film 62 surface and be provided with (also can constitute by a shielding sputter or evaporation) first circuit 63 form one first insulation course 64 and one first following layer 65 in regular turn on this first circuit 63; And further construction one hardening coat 66 of the lamina rara externa face of this first transparent conductive panel 60 is to increase the anti-scraping ability of contact panel;

This second transparent conductive panel 70, it is provided with one second transparency carrier 71, this second transparency carrier 71 can be glass substrate, PET, PC, PIC or acryl material, this second transparency carrier 71 is provided with patterning second transparent conductive film 72, and this second transparent conductive film 72 utilizes a reusable shielding sputter or evaporation to constitute, and this second transparency carrier 71 and second transparent conductive film 72 surface and be provided with (also can constitute by a reusable shielding sputter or evaporation) second circuit 73 form one second insulation course 74 and one second following layer 75 in regular turn on this second circuit 73;

As for, these are some is located between this first, second transparent

conductive panel

60,70 every ball 80, in order to first, second transparent

conductive panel

60,70 is separated.

Wherein, each first, second transparent

conductive film

62,72 by a reusable shielding sputter or evaporation one-shot forming on this first,

second transparency carrier

61,71, not only simplify to practise step complicated in the gold-tinted processing procedure is arranged, and yield is higher, and the optics developing technique may or soak the developer solution overlong time because of the time shutter and produces the faulty materials that pattern is unclear or break away from, and do not need to utilize liquid handling in the utility model fully, can improve to practise has the disappearance of utilizing the gold-tinted processing procedure can produce the waste liquid serious environment pollution.

In sum, the utility model provides transparency carrier one preferable feasible patterning transparent conductive film, and the application of novel patent is offered in the whence in accordance with the law; Technology contents of the present utility model and technical characterstic disclose as above, yet the personage who is familiar with this technology still may do various replacement and the modifications that do not deviate from this case utility model spirit based on announcement of the present utility model.Therefore, protection domain of the present utility model should be not limited to those disclosed embodiments, and should comprise various do not deviate from replacement of the present utility model and modifications, and is contained by following claim.

Claims

1, a kind of patterning transparent conductive film of transparency carrier is characterized in that, this transparency carrier is provided with the patterning transparent conductive film that utilizes a reusable shielding sputter or evaporation to constitute.

2, the patterning transparent conductive film of transparency carrier according to claim 1 is characterized in that this transparency carrier is glass substrate, PET, PC or acryl material.

3, the patterning transparent conductive film of transparency carrier according to claim 1 is characterized in that this reusable shielding is a metal material.

4, as the patterning transparent conductive film of transparency carrier as described in the claim 3, it is characterized in that this shielding is provided with a stainless steel substrates.

5, as the patterning transparent conductive film of transparency carrier as described in the claim 3, it is characterized in that this shielding is provided with the pierced pattern district with respect to transparent conductive film.

6, the patterning transparent conductive film of transparency carrier according to claim 1 is characterized in that this transparent conductive film is indium tin oxide or transparent conductive oxide.