CN1260756C - Structure of the touch panel - Google Patents

Abstract

The invention relates to a structure of a touch panel, which comprises a shell, wherein an accommodating space is arranged in the shell, an opening communicated with the accommodating space is arranged on the surface of the shell, a touch panel consisting of a film and a glass substrate is arranged in the accommodating space, the film and the glass substrate are connected together by a joint part at the corresponding peripheral position and are separated into a proper interlayer, the film is exposed out of the shell from the opening, and an adhesive layer is arranged between the shell and the film at a proper interval from the edge of the opening so as to connect the shell and the film together.

Description

Structure of the touch panel

technical field

The present invention relates to a structure of a touch panel, in particular to a case where an adhesive layer is used to connect with a film of a touch panel at a position close to the edge of the opening, so that the shell close to the opening After the film at the edge is pressed, it can be in contact with the corresponding glass substrate.

Background technique

Press, after the development and integration of traditional keyboard (keyboard), mouse (Mouse), trackball (trackball), track point (tackpoint), touch panel (Touch Pad), most of the commercially available products use multiple input The integration of devices, such as the coexistence of keyboards, mice, trackballs or trackpoints in the past, is nothing more than to improve input efficiency and convenience. The input device can no longer meet the needs of users, and there is no space on the product for accommodating multiple input devices.

However, a touch panel can not only meet the requirements of multi-level menu design, but also have keyboard, mouse function and humanized operation modes such as handwriting input, especially the combination of input device (Input Device) and output device (Output Device) Device) are integrated together, therefore, the touch panel is regarded as the most mature and stable input-input interface among several new input devices, and it has also become the best choice for industrial designers when developing displays. Popular personal digital processors (PDA), various information appliances (IA), notebook computers, mobile phones (Mobile Phone), palmtop computers (Handheld PC), global positioning system (GPS), etc., all choose touch panels As its input device can be seen in general.

The structure of the traditional touch panel, it is provided with a housing 1, the housing 1 is provided with an accommodating space 10, the surface of the housing 1 is provided with an opening 12 communicating with the accommodating space 10, the accommodating A touch panel 2 is arranged in the space 10, and the touch panel is composed of a film 20 and a glass substrate 22. On the peripheral position corresponding to the film 20 and the glass substrate 22, a spacer column 24 is used to separate an appropriate The spacer 26, and at the position adjacent to the spacer column 24, an insulating area 28 is provided, the film 20 is exposed from the opening 12 to the housing 1, between the housing 1 and the film 20, adjacent to the An adhesive layer 3 is provided on the edge of the opening 12 to connect the casing 1 and the film 20 together.

But this bonding layer 3 is arranged on the edge position of this opening 12, makes this film 20 can't produce big deformation on the position adjacent to this bonding layer 3, maybe even can't be deformed at all, makes the film 20 adjacent to this The film 20 at the position of the adhesive layer cannot be in contact with the glass substrate 22 at the position close to the adhesive layer 3, so the maximum deformation limit of the film 20 will be smaller than the edge of the opening. At this time, if the glass The substrate 22 displays an option at a position adjacent to the edge of the opening 12. When the film 20 is pressed near the edge of the opening 12, the film 20 cannot be deformed at this position, and the corresponding glass substrate 22 Touching together, causing an annoyance that the option cannot be selected.

Or, if the glass substrate 22 is at a position close to the edge of the opening 12, another option is displayed, when pressing the position of the film 20 adjacent to the edge of the opening 12 (this position does not correspond to the other option) , because the film 20 cannot be deformed at the position adjacent to the edge of the opening 12, and the film 20 is deformed at a position close to the edge of the opening 12, so that the film is in contact with the glass substrate near the edge of the opening together, without touching the other option, causing a lot of inconvenience and confusion in use; moreover, the adhesive layer 3 is arranged on the edge of the opening 12, so that the visible area boundary of the glass substrate 22 is affected by limited to the adhesive layer 3 .

Contents of the invention

In view of the traditional touch panel, the thin film near the edge of the opening cannot be in contact with the corresponding glass substrate, resulting in the trouble of not being able to select the option at this position. After long-term hard research and experiments, the inventor finally developed and designed A structure of a touch panel according to the present invention includes: a casing, an accommodating space is provided in the casing, an opening communicating with the accommodating space is provided on the surface of the casing; a touch panel, the accommodating space The touch panel is arranged in the accommodating space, which is composed of a film and a glass substrate, and a spacer column is arranged between the periphery of the film and the periphery of the glass substrate, and adjacent to the spacer column between the edge of the opening and the spacer column. A spacer column, and an insulating area is set at a position that does not affect the basic visible area limit of the glass, and the film exposes the shell through the opening; an adhesive layer is arranged on the film facing the shell One side is between the spacer column and the insulating region. In this way, when the film is pressed close to the edge of the opening, it will be in contact with the corresponding glass substrate, which can prevent the film and the glass substrate from being in contact together, resulting in the option on the edge of the opening being unable to be selected. Choice dilemma.

For the convenience of the purpose of the present invention, shape, structure device feature and effect thereof, do further understanding and understanding, hereby cite embodiment and cooperate accompanying drawing, describe in detail as follows:

Description of drawings

FIG. 1 is a schematic cross-sectional view of a conventional touch panel.

FIG. 2 is a schematic cross-sectional view of the touch panel of the present invention.

Detailed ways

The present invention is a structure of a touch panel, which is provided with a housing 4 , an accommodating space 40 is provided in the housing 4 , and an opening 42 communicating with the accommodating space 40 is provided on the surface of the housing 4 , the accommodating space 40 is provided with a touch panel 5, the touch panel 5 is composed of a film 52 and a glass substrate 54, the peripheral position of the film 52 corresponding to the glass substrate 54, using a junction 6 connected together, and separate a suitable compartment 56, the film 52 exposes the housing 4 from the opening 42, and the housing 4 and the film 52 are at a proper distance from the edge of the opening 42 , an adhesive layer 7 is provided, so as to connect the casing 4 and the film 52 together;

When the position of the film 52 adjacent to the edge of the opening 42 is pressed, the film 52 can be deformed, and the curve of its change is relatively smooth, so that the film 52 can be in contact with the position of the glass substrate 54 near the edge of the opening 42. Together, the predicament that the film and the glass substrate cannot be in contact with each other at the position adjacent to the opening can be avoided, and the film 52 near the edge of the opening 42 and the glass substrate 54 can be avoided from touching by mistake. In addition, The position of the glass substrate adjacent to the opening is not limited by the adhesive layer 7 but only limited by the housing 4 , so that the visible area of the glass substrate 54 is larger than that of a conventional touch panel.

In one embodiment of the present invention, the bonding portion 6 is composed of a spacer column 62 and an insulating region 64, the spacer column 62 is arranged between the periphery of the film 52 and the periphery of the glass substrate 54 to form the spacer 6. The insulating area 64 is located between the edge of the opening 42 and the spacer column 62 adjacent to the spacer column 62, and the insulating area 64 does not affect the position of the visible area limit of the glass substrate 54. The bonding The layer 7 is disposed on the side of the film 52 facing the casing 4 between the spacer 62 and the insulating region 64 .

In one embodiment of the present invention, the glass substrate is a transparent conductive glass (ITO Glass), and the thin film is a transparent conductive film (ITO Film), and the transparent conductive glass and the transparent conductive film are arranged according to the X and Y axes respectively. For wiring, a plurality of upper transparent electrodes are arranged on the transparent conductive film, and a plurality of lower transparent electrodes are arranged on the transparent conductive glass.

When pressure is applied to the upper electrode through fingers, pens or other media, the upper and lower electrodes will be connected to generate a potential difference, and the intersection of the lines will form a switch function to generate a signal and then It is transmitted to the electronic device connected to the touch panel through a row of wires for processing to calculate the pressed coordinate position, so as to judge the position of the finger, pen or other medium on the film from the coordinate position and trajectory.

The above is only the best specific embodiment of the present invention, and the structural features of the present invention are not limited thereto. Any changes or modifications that can be easily conceived by those familiar with the technical field in the field of the present invention can be covered. In the following patent scope of this case.

Claims (2)

1. A structure of a touch panel, comprising: A housing, the housing is provided with an accommodating space, and the surface of the housing is provided with an opening communicating with the accommodating space; A touch panel, the touch panel is arranged in the accommodating space, and it is composed of a film and a glass substrate, and a spacer column is arranged between the periphery of the film and the periphery of the glass substrate, between the edge of the opening and the An insulating area is provided between the spacing columns adjacent to the spacing columns and does not affect the basic visible area limit of the glass, and the film is exposed from the housing through the opening; An adhesive layer, the adhesive layer is arranged on the side of the film facing the housing between the spacer column and the insulating area. 2. The structure according to claim 1, wherein the glass substrate is a transparent conductive glass, and the film is a transparent conductive film, and the transparent conductive glass and the transparent conductive film are respectively laid out according to the X and Y axes. The transparent conductive film is provided with a plurality of upper transparent electrodes, and the transparent conductive glass is provided with a plurality of lower transparent electrodes.