CN201594251U

CN201594251U - Projection capacitor-type touch panel

Info

Publication number: CN201594251U
Application number: CN2009203513598U
Authority: CN
Inventors: 徐淑珍
Original assignee: MINLI INVESTMENT CO Ltd
Current assignee: MINLI INVESTMENT CO Ltd
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2010-09-29
Anticipated expiration: 2019-12-30

Abstract

The utility model relates to a projection capacitor-type touch panel which comprises an upper panel and a lower panel, wherein the bottom surface of the upper panel is provided with a plurality of upper wiring zones; each upper wiring zone comprises a plurality of contacts which are connected in series with one another; a lightproof insulating ink layer is further arranged at the periphery of the bottom surface of the upper panel and positioned on the edges of the contacts on the one side in the axial direction of each upper wiring zone in a covering manner; a plurality of preservation grooves which are respectively led to the contacts are formed on the insulating ink layer concavely; conductors are respectively arranged in the preservation grooves; a connection port is arranged on the bottom surface of each conductor, and in addition, leads matched with the connection ports in number are arranged on the bottom surface of the insulating ink layer; and one end of each lead is respectively connected with the corresponding connection port. The lightproof insulating ink layer can shelter the non-transparent leads or the connection ports on the upper panel or the lower panel, and can be applied to electronic products without arranging a shield plate in a matched manner, so that the cost is saved and the thickness of products can be reduced.

Description

Projected capacitive touch panel

[technical field]

The utility model is about a kind of contact panel, particularly about a kind of contact panel of projected capacitive.

[background technology]

The technology of touch panel is mainly divided into condenser type, resistance-type, acoustic wave, infrared-type or the like according to its principle, wherein the capacitance touching control mask has waterproof, scratch resistant, higher advantages such as penetrability, be mainly used on the display product of higher-order, its touch-control principle can be subdivided into two kinds of surface capacitance type and projected capacitives again, wherein the projected capacitive technology is because can be for multi-point touch operation, therefore also gradually expansion of the application on video and audio product.

Aforementioned projected capacitive technology, mainly be on two substrates, to be respectively equipped with several wiring region that form by tin indium oxide (ITO), and the two substrates periphery is respectively equipped with several leads, those leads are opaque and two ends and are connected with wiring region and the flexible circuit board that is positioned at substrate one side respectively, transfer to flexible circuit board in order to signal with wiring region, and the electronic product of use projected capacitive touch panel, for considering on attractive in appearance, all can be provided with a cover plate by this contact panel end face, this cover plate is coated with opaque printing ink corresponding to the conductor area system of contact panel, so as to covering those leads, only the use of this cover plate is except that the problem that has cost of manufacture to rise, also can cause the product integral thickness to increase, cause product can't satisfy the demand of slimming.

[utility model content]

When stating the projected capacitive touch panel of prior art in the use in view of touch electronics product, collocation uses cover plate to cover lead in addition, the shortcoming that causes electronic product to have cost to rise and can't slimming, the structure of the utility model improvement projected capacitive touch panel, making lead can be a lighttight ink lay covers, so when being applied to an electronic product, can exempt the setting of cover plate.

For reaching above-mentioned purpose, the employed technological means of the utility model is to provide a kind of projected capacitive touch panel, and it includes:

One insulation glue-line, it is formed with a groove from a side indent;

One flexible circuit board, it is arranged in the groove of described insulation glue-line;

One lower plate, it is arranged at the bottom surface of described insulation glue-line and flexible circuit board, and its bottom surface forms an ELECTROMAGNETIC OBSCURANT layer, and end face be provided with several be arranged in parallel and have common axle to following wiring region, each time wiring region comprises the contact that several are connected in series mutually, and the edge that is positioned at each contact of the side of each time wiring region on axially is respectively equipped with Port, the end face of lower plate still is provided with the lead of corresponding Port quantity, the one end is connected to corresponding Port, and the other end of lead is connected to described flexible circuit board;

One upper plate, it is arranged at the end face of described insulation glue-line and circuit board, and be provided with in its bottom surface several be arranged in parallel and have common axle to last wiring region, wiring region comprises several contacts of mutual serial connection on each, and last wiring region axially be perpendicular to down wiring region axially, upper plate bottom surface periphery is provided with a lighttight dielectric ink layer in addition, its covering is positioned at the edge of each contact of the side on axially of wiring region on each, and with the Port of each time wiring region of lower plate and lead in an overlapping, be concaved with the preformed groove that several pass to each contact respectively on the dielectric ink, be respectively equipped with a conductor in those preformed grooves, each conductor bottom surface is respectively equipped with a Port, the bottom surface of dielectric ink is provided with the lead corresponding to Port quantity in addition, one end of those leads is connected to corresponding Port respectively, and the other end of lead is connected to described flexible circuit board respectively.

Described projected capacitive touch panel is characterized in that: described lead is silver-colored lead.

Described projected capacitive touch panel is characterized in that: this ELECTROMAGNETIC OBSCURANT layer is made of tin indium oxide.

Described projected capacitive touch panel is characterized in that: described contact is made of tin indium oxide.

In the utility model, because the upper plate bottom surface is formed with lighttight dielectric ink layer, and be connected in the contact of wiring region and the lead between the flexible circuit board on the upper plate, it is the bottom surface that is formed at this dielectric ink layer, and the Port of each time wiring region of dielectric ink layer and lower plate and lead are in an overlapping, be with when the upper plate end face is watched, the dielectric ink layer can cover lead and the Port on upper plate and the lower plate, performance and cover plate identical functions of the prior art, therefore, in the electronic product this cover plate can be set again, thereby can reach the purpose of saving cost and reducing product thickness.

[description of drawings]

Fig. 1 is the stereo appearance figure of the utility model.

Fig. 2 starts the part exploded view of state in upper plate for the utility model.

Fig. 3 is the stereo appearance figure of lower plate in the utility model.

Fig. 4 is the upward view of upper plate in the utility model.

Fig. 5 is the 5-5 sectional view of Fig. 4.

Fig. 6 is a top view of the present utility model.

(10) insulation glue-line (11) groove

(20) flexible circuit board

(30) lower plate (31) ELECTROMAGNETIC OBSCURANT layer

(32) wiring region (321) contact under

(33) Port (34) lead

(40) upper plate (41) is gone up wiring region

(411) contact (42) dielectric ink layer

(421) preformed groove (422) conductor

(43) Port (44) lead

[embodiment]

Referring to Fig. 1, shown in Figure 2, projected capacitive touch panel of the present utility model, it includes an insulation glue-line 10, a flexible circuit board 20, a lower plate 30 and a upper plate 40, wherein:

This insulation glue-line 10 is formed with a groove 11 from a side indent;

This flexible circuit board 20 is arranged in the groove 11 of described insulation glue-line 10;

Cooperation is referring to shown in Figure 3, the structure of this lower plate 30 is identical with the structure of the projected capacitive touch panel of prior art, it is arranged at the bottom surface of described insulation glue-line 10 and flexible circuit board 20, and its bottom surface forms an ELECTROMAGNETIC OBSCURANT layer 31, this ELECTROMAGNETIC OBSCURANT layer 31 can be made of tin indium oxide (ITO), in addition lower plate 30 end faces be provided with several be arranged in parallel and have common axle to following wiring region 32, each time wiring region 32 comprises several contacts that is connected in series mutually 321, those contacts 321 can be made of tin indium oxide, in addition, the edge that is positioned at each contact 321 of each time wiring region 32 side on axially is respectively equipped with the Port 33 into conductive material, the end face of lower plate 30 still is provided with the lead 34 of corresponding Port 33 quantity in addition, those leads 34 can be silver-colored lead, the one end is connected to corresponding Port 33, and the other end is connected to this flexible circuit board 20;

Cooperation is referring to shown in Figure 4, it is the upward view of upper plate 40, this upper plate 40 is arranged at the end face of described insulation glue-line 10 and flexible circuit board 20, and be provided with in its bottom surface several be arranged in parallel and have common axle to last wiring region 41, last wiring region 41 axially be perpendicular to described down wiring region 32 axially, wiring region 41 comprises several contacts 411 of mutual serial connection on each, those contacts 411 can be made of tin indium oxide, its correspondence is positioned at the position that lower plate 30 end faces are not provided with contact 321, upper plate 40 bottom surface peripheries are provided with a lighttight dielectric ink layer 42 in addition, its covering is positioned at the edge of each contact 411 of the side of wiring region on each 41 on axially, and with the Port 33 of each time wiring region 32 of lower plate 30 and lead 34 in an overlapping, cooperation is referring to shown in Figure 5, dielectric ink layer 42 covers each 411 place, contact of going up wiring region 41 and is concaved with the preformed groove 421 that passes to contact 411 respectively, be respectively equipped with a conductor 422 in those preformed grooves 421, each conductor 422 bottom surface is respectively equipped with a Port 43, the bottom surface of dielectric ink layer 42 is provided with the lead 44 corresponding to Port 43 quantity in addition, those leads 44 can be silver-colored lead, the one end is connected to corresponding Port 43 respectively, and the other end is connected to described flexible circuit board 20 respectively.

In the utility model, described upper plate 40 bottom surface peripheries form dielectric ink layer 42, and described lead 44 is the bottom surfaces that are formed at this dielectric ink layer 42, the one end is connected in flexible circuit board 20, and other end system is connected in Port 43, be electrically connected thereby can see through to be between the contact 411 of Port 43 and conductor 422 and last wiring region 41, the signal that to go up the contact 411 of wiring region 41 according to this is passed to flexible circuit board 20, and because dielectric ink layer 42 is light tight, and the Port 33 of itself and lower plate 30 and lead 34 are in an overlapping, be with, cooperation is referring to shown in Figure 6, when the end face of contact panel is watched, dielectric ink layer 42 can cover the lead 44 on upper plate 40 and the

lower plate

30,34 with Port 43,33, so when contact panel of the present utility model is used in an electronic product, need not on this product that a cover plate additionally is set and

cover lead

34,44 with Port 33,43, thus can reach the purpose of saving cost and reducing product thickness.

Claims

1. projected capacitive touch panel is characterized in that: include:

One insulation glue-line, described insulation glue-line is formed with a groove from a side indent;

One flexible circuit board, described flexible circuit board are arranged in the groove of described insulation glue-line;

One lower plate, described lower plate is arranged at the bottom surface of described insulation glue-line and flexible circuit board, and its bottom surface forms an ELECTROMAGNETIC OBSCURANT layer, and end face be provided with several be arranged in parallel and have common axle to following wiring region, each time wiring region comprises the contact that several are connected in series mutually, and the edge that is positioned at each contact of the side of each time wiring region on axially is respectively equipped with Port, the end face of lower plate still is provided with the lead of corresponding Port quantity, the one end is connected to corresponding Port, and the other end is connected to described flexible circuit board;

One upper plate, described upper plate is arranged at the end face of described insulation glue-line and circuit board, and be provided with in its bottom surface several be arranged in parallel and have common axle to last wiring region, wiring region comprises several contacts of mutual serial connection on each, and wiring region is axial under being axially perpendicular to of last wiring region, upper plate bottom surface periphery is provided with a lighttight dielectric ink layer in addition, its covering is positioned at the edge of each contact of the side on axially of wiring region on each, and with the Port of each time wiring region of lower plate and lead in an overlapping, be concaved with the preformed groove that several pass to each contact respectively on the dielectric ink, be respectively equipped with a conductor in those preformed grooves, each conductor bottom surface is respectively equipped with a Port, the bottom surface of dielectric ink is provided with the lead corresponding to Port quantity in addition, one end of those leads is connected to corresponding Port respectively, and the other end is connected to described flexible circuit board respectively.

2. projected capacitive touch panel as claimed in claim 1 is characterized in that: described lead is silver-colored lead.

3. projected capacitive touch panel as claimed in claim 1 is characterized in that: this ELECTROMAGNETIC OBSCURANT layer is made of tin indium oxide.

4. projected capacitive touch panel as claimed in claim 2 is characterized in that: this ELECTROMAGNETIC OBSCURANT layer is made of tin indium oxide.

5. as each described projected capacitive touch panel in the claim 1 to 4, it is characterized in that: described contact is made of tin indium oxide.