CN219778205U

CN219778205U - Capacitive sensing type touch screen structure

Info

Publication number: CN219778205U
Application number: CN202320382077.4U
Authority: CN
Inventors: 金广涛; 邹春友
Original assignee: Shenzhen Smart Core S&t Co ltd
Current assignee: Shenzhen Smart Core S&t Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-09-29
Anticipated expiration: 2033-03-03

Abstract

The utility model discloses a capacitive sensing type touch screen structure which comprises a first circuit substrate and a second circuit substrate, wherein a first ITO layer is arranged on one side of the first circuit substrate, a second ITO layer is arranged on one side of the second circuit substrate, the first circuit substrate and the second circuit substrate are bonded together through colloid, the first ITO layer is opposite to the second ITO layer, the first ITO layer comprises a plurality of first ITO sensing units which are arranged in an array manner, the second ITO layer comprises a plurality of second ITO sensing units which are arranged in an array manner, the first ITO sensing units and the second ITO sensing units are arranged in pairs to form capacitive sensing, ITO sensing unit driving lines are arranged at the edges of the first ITO layer, the first ITO sensing units are connected to the ITO sensing unit driving lines, and the second ITO sensing units are connected with a control IC through corresponding signal sensing lines respectively. Compared with the prior art, the first ITO sensing units are connected to one ITO sensing unit driving line.

Description

Capacitive sensing type touch screen structure

Technical Field

The utility model relates to a capacitive sensing type touch screen structure.

Background

In recent years, due to the continuous increase of the screen size, the main operation of the touch screen mobile phone is completed in the screen, the mobile phone is very difficult to hold by one hand, and the narrow frame technology can just solve the problem of single hand operability;

the narrow frame design has the advantages that the screen occupation ratio is increased, the extra area of the display screen is smaller, and better appearance is brought to people;

the narrow frame design can reduce the fuselage volume of complete machine, and this is also the indirect influence that screen duty ratio increases can bring, for example: under the condition of the same screen area, the transverse width of the narrow frame is narrower than that of the common frame, so that the hand can hold the frame more easily. Thus, not only the grip feeling is improved, but also the operation space of the thumb is increased.

Disclosure of Invention

The present utility model is directed to a capacitive sensing touch screen structure, so as to solve the above-mentioned problems in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a capacitive sensing touch screen structure, includes first circuit substrate, second circuit substrate, first circuit substrate one side is provided with first ITO layer, second circuit substrate one side is provided with the second ITO layer, first circuit substrate with the second circuit substrate passes through the colloid laminating together, wherein, first ITO layer is just to the second ITO layer, first ITO layer includes a plurality of first ITO sensing unit that are the array arrangement, the second ITO layer includes a plurality of second ITO sensing unit that are the array arrangement, first ITO sensing unit sets up in pairs with the second ITO sensing unit in order to form capacitive sensing, ITO sensing unit drive line has been arranged at first ITO layer edge, and first ITO sensing unit all connects on ITO sensing unit drive line, second ITO sensing unit is connected with control IC through corresponding signal induction line respectively.

Further, the first circuit substrate and the second circuit substrate are manufactured by the following method: coating photoresist on the surface of a substrate plated with an aluminum key, covering the substrate by a film, removing the photoresist at the part which is covered by the film and is not exposed by the film after exposure and development, then deplating the aluminum key, cleaning, leaving a required circuit on the substrate, and finally adding an ITO sensing unit.

Further, the substrate is a glass substrate.

The utility model has the beneficial effects that: the ITO sensing unit driving line 12 is used to drive the ITO sensing unit to work, and when the corresponding position of the touch screen is touched by hand, the control IC receives the signal and determines the specific position of the touch through a corresponding algorithm, so as to execute a corresponding action. Compared with the prior art, the first ITO sensing units are connected to the ITO sensing unit driving line, so that the use of the ITO sensing unit driving line is reduced, the arrangement space is further reduced, and a narrower black frame can be adopted when the edge black frame is installed, so that a narrow-frame touch screen is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a diagram of a first circuit substrate according to the present utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a diagram of a second circuit substrate according to the present utility model;

FIG. 4 is an enlarged view of portion B of FIG. 3;

fig. 5 is a bonding state diagram of the first circuit substrate and the second circuit substrate;

fig. 6 is an enlarged view of a portion C in fig. 5.

It should be noted that the drawings are not necessarily to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

It is also to be understood that the terminology used in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As shown in fig. 1 to 6, the present utility model provides a capacitive sensing touch screen structure, which includes a first circuit substrate 1 and a second circuit substrate 2, wherein a first ITO layer is disposed on one side of the first circuit substrate 1, a second ITO layer is disposed on one side of the second circuit substrate, the first circuit substrate 1 and the second circuit substrate 2 are bonded together through a colloid, wherein the first ITO layer is opposite to the second ITO layer, the first ITO layer includes a plurality of first ITO sensing units 11 arranged in an array, the second ITO layer includes a plurality of second ITO sensing units 21 arranged in an array, the first ITO sensing units 11 and the second ITO sensing units 21 are disposed in pairs to form capacitive sensing, ITO sensing unit driving lines 12 are disposed at edges of the first ITO layer, the first ITO sensing units 11 are all connected to the ITO sensing unit driving lines 12, and the second ITO sensing units 21 are respectively connected to a control IC through corresponding signal sensing lines 22.

The ITO sensing unit driving line 12 is used to drive the ITO sensing unit to work, and when the corresponding position of the touch screen is touched by hand, the control IC receives the signal and determines the specific position of the touch through a corresponding algorithm, so as to execute a corresponding action. Compared with the prior art, the first ITO sensing units are connected to the ITO sensing unit driving line, so that the use of the ITO sensing unit driving line is reduced, the arrangement space is further reduced, and a narrower black frame can be adopted when the edge black frame is installed, so that a narrow-frame touch screen is realized.

In a further embodiment of the utility model: the first circuit substrate 1 and the second circuit substrate 2 are manufactured by the following method: coating photoresist on the surface of a substrate plated with an aluminum key, covering the substrate by a film, removing the photoresist at the part which is covered by the film and is not exposed by the film after exposure and development, then deplating the aluminum key, cleaning, leaving a required circuit on the substrate, and finally adding an ITO sensing unit.

In a further embodiment of the utility model: the substrate is a glass substrate.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model as defined in the claims. Although the present utility model has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the utility model, and it is intended to cover all such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. The utility model provides a capacitive sensing touch screen structure, includes first circuit substrate, second circuit substrate, first circuit substrate one side is provided with first ITO layer, second circuit substrate one side is provided with the second ITO layer, first circuit substrate with the second circuit substrate passes through the colloid laminating together, wherein, first ITO layer is just to the second ITO layer, first ITO layer includes a plurality of first ITO sensing unit that are the array arrangement, the second ITO layer includes a plurality of second ITO sensing unit that are the array arrangement, first ITO sensing unit sets up in pairs with the second ITO sensing unit in order to form capacitive sensing, ITO sensing unit drive line has been arranged at first ITO layer edge, and first ITO sensing unit all connects on ITO sensing unit drive line, second ITO sensing unit is connected with control IC through corresponding signal induction line respectively.