JP7071128B2 - Display device - Google Patents

Description

The present invention relates to a display device.

In recent years, display devices equipped with a touch panel unit that can be operated by touching the screen have become widespread in various fields. As an example thereof, for example, a display device with a touch panel function of a capacitance type is disclosed in Patent Document 1.

In the conventional display device described in Patent Document 1, a so-called direct bonding method is adopted in which a display panel and a touch panel are bonded by an adhesive body arranged on the entire screen of the display panel. As a result, the visibility of the screen is improved, and the quality of the display device can be improved.

Japanese Unexamined Patent Publication No. 2017-4257

However, the direct bonding method, which is the conventional technique described in Patent Document 1, has a problem of cost increase. It was feared that this would hinder the promotion of larger screens for display devices.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of suppressing a cost increase and improving the visibility of a screen in a display device.

The display device according to the present invention supports a display unit having a screen on which an image is displayed, a touch panel unit arranged on the screen side of the display unit, and the touch panel unit, and is on the screen side of the display unit. The display unit includes a frame body portion having an opening for accommodating the display unit, and a spacer arranged outside the screen along the screen and between the display unit and the touch panel unit. Is a configuration (first configuration) arranged inside the inner edge portion of the opening of the accommodating portion.

Further, in the display device having the first configuration, the spacer may have a configuration (second configuration) which is a connecting member for connecting the display unit and the touch panel unit.

Further, in the display device having the first configuration, the spacer is an elastic member that comes into contact with at least one of the display unit and the touch panel unit without being coupled (third configuration). Is also good.

Further, in the display device having the first to third configurations, the first holder that supports the display unit, the second holder that supports the frame body portion, and the relative between the first holder and the second holder. The configuration (fourth configuration) may include a connection portion for connecting the first holder and the second holder so that the position can be changed.

According to the configuration of the present invention, the frame body portion that supports the touch panel portion does not intervene between the display portion and the touch panel portion. That is, the display unit and the touch panel unit can be brought close to each other without being pasted together on the entire screen. Therefore, it is possible to suppress an increase in the cost of the display device and improve the visibility of the screen.

It is a front view of the display device of an embodiment. It is an exploded perspective view of a display device. It is a partial horizontal sectional view of the display device in line III-III of FIG. It is a partially enlarged horizontal sectional view of the display device of FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following contents.

<1. Overall configuration of display device>
FIG. 1 is a front view of the display device 1 of the embodiment. FIG. 2 is an exploded perspective view of the display device 1. In FIG. 1, the vertical direction is the vertical direction of the display device 1, the horizontal horizontal direction is the horizontal horizontal direction of the display device 1, and the depth direction of the paper surface is the front-back direction of the display device 1.

The display device 1 has a rectangular parallelepiped shape when viewed from the front. The display device 1 includes a frame body unit 2 shown in FIGS. 1 and 2, a touch panel unit 3, an overlay film 4, a display unit 5, a spacer 6, a first holder 7, a second holder 8, and a rear plate 9.

The frame body portion 2 is arranged on the peripheral edge portion of the display device 1. The frame body portion 2 is formed of a rectangular frame shape when viewed from the front. The frame body portion 2 supports the touch panel portion 3 and the overlay film 4 on the front side.

The touch panel unit 3 is arranged in front of the frame body unit 2. The overlay film 4 is arranged on the front side of the touch panel unit 3. The touch panel portion 3 is arranged between the overlay film 4 and the frame body portion 2. Further, the touch panel unit 3 is arranged on the screen 51 side of the display unit 5.

The touch panel unit 3 is composed of, for example, a capacitive touch panel. When the touch area on the surface of the touch panel unit 3 is touched by a body to be detected such as the fingertip of the user's hand, the capacitance of the electrode corresponding to the detection position of the body to be detected changes. As a result, the touch panel unit 3 detects the touched position in the touch area and outputs the change in the capacitance as a detection signal. The output signal of the touch panel unit 3 is transmitted to the control unit (not shown).

The display unit 5 is arranged inside the frame body unit 2. The display unit 5 has a screen 51 on which an image is displayed. The screen 51 of the display unit 5 faces the front side of the display device 1, and the touch panel unit 3 is located in front of the screen 51. The display unit 5 is composed of, for example, a liquid crystal display panel. The display unit 5 receives a command from the control unit of the display device 1 and displays various information on the screen 51.

The touch panel unit 3 is arranged so as to be superimposed on the screen 51 of the display unit 5. As a result, the entire screen 51 of the display unit 5 becomes the touch area of the touch panel unit 3.

The spacer 6 is arranged between the display unit 5 and the touch panel unit 3. Moreover, the spacer 6 is arranged outside the screen 51 along the screen 51 of the display unit 5. That is, the spacer 6 is formed of a rectangular band when viewed from the front.

The first holder 7 is arranged on the back side of the display unit 5. The first holder 7 supports the display unit 5. The first holder 7 is made of, for example, sheet metal.

The second holder 8 is arranged on the back surface side of the frame body portion 2. The second holder 8 supports the frame body portion 2. The second holder 8 is made of, for example, sheet metal. The first holder 7 and the second holder 8 are connected to each other.

The rear plate 9 is the back side of the first holder 7 and the second holder 8, and is arranged on the backmost side of the display device 1. The rear plate 9 is a substantially rectangular parallelepiped box body in which the front side and the lower side facing the first holder 7 and the second holder 8 are open. The rear plate 9 is made of, for example, sheet metal.

<2. Detailed configuration of display device>
Subsequently, a detailed configuration of the display device 1 will be described. FIG. 3 is a partial horizontal cross-sectional view of the display device 1 in lines III-III of FIG. FIG. 4 is a partially enlarged horizontal sectional view of the display device 1 of FIG.

The frame body portion 2 is provided with a first recess 21 that is recessed toward the rear on the front surface. The outer shape of the first recess 21 is substantially the same in shape and size as the outer shape of the overlay film 4, and is smaller than the outer peripheral edge of the frame body portion 2. The first recess 21 accommodates the overlay film 4. The outer peripheral portion of the overlay film 4 is attached to the surface of the first recess 21 facing the front surface of the display device 1. The overlay film 4 is attached to the first recess 21 using, for example, a double-sided tape 10.

The frame body portion 2 includes a second recess 22 that is recessed toward the rear inside the first recess 21. The outer shape of the second recess 22 is substantially the same in shape and size as the outer shape of the touch panel portion 3, and is smaller than the outer shape of the first recess 21. The second recess 22 accommodates the touch panel portion 3. The entire front surface of the touch panel portion 3 is covered with the overlay film 4, and the touch panel portion 3 is in close contact with the back surface of the overlay film 4.

The frame body portion 2 is provided with an accommodating portion 23 of the display portion 5 in a central portion inside the second recess 22 and viewed from the front. The accommodating portion 23 has an opening 23a on the front side of the display device 1 and on the screen 51 side of the display unit 5. The display unit 5 is arranged inside the inner edge portion of the opening 23a of the accommodating portion 23. In other words, the inner edge portion of the opening 23a of the accommodating portion 23 is located outside the outer edge portion of the display unit 5. That is, the frame body portion 2 does not overlap with the display portion 5 when viewed from the front.

According to this configuration, the frame body portion 2 that supports the touch panel unit 3 does not intervene between the display unit 5 and the touch panel unit 3. That is, the display unit 5 and the touch panel unit 3 can be brought close to each other without being bonded to each other on the entire screen 51. Therefore, it is possible to suppress the cost increase of the display device 1 and improve the visibility of the screen 51.

For example, when a display device is mounted on a vehicle, the user often looks at the screen from an oblique direction. As a result, if the distance between the display unit and the touch panel unit is wide, parallax is likely to occur, and there is a possibility that the display on the screen and the touch position of the user may deviate from each other. On the other hand, according to the display device 1 of the above embodiment, the display unit 5 and the touch panel unit 3 can be brought close to each other with an inexpensive and simple configuration, and it is possible to prevent the touch position from being displaced. ..

The spacer 6 can be a connecting member that connects the display unit 5 and the touch panel unit 3. In this case, the spacer 6 is made of, for example, double-sided tape or an adhesive. The spacer 6 is coupled to each of the display unit 5 and the touch panel unit 3. According to this configuration, the strength of the display device 1 can be improved. In addition, it is possible to enhance the effect of preventing dust from entering the screen 51. Further, if the spacer 6 is compressed, it is possible to suppress the variation in the dimensions of the component itself and the variation in the dimensions at the time of assembly.

Further, the spacer 6 can be an elastic member that contacts the display unit 5 and the touch panel unit 3 without being coupled to at least one of them. In this case, the spacer 6 is composed of, for example, an elastic dustproof spacer. The spacer 6 contacts one or both of the display unit 5 and the touch panel unit 3 without being coupled. According to this configuration, when disassembling, for example, at the time of repair, the display unit 5 and the touch panel unit 3 can be easily separated. Therefore, it is possible to improve workability when disassembling. Furthermore, the diversion and reusability of parts at the time of repair are improved. Further, if the spacer 6 is compressed, it is possible to suppress the variation in the dimensions of the component itself and the variation in the dimensions at the time of assembly.

The display unit 5 has a boss unit 52 on its back surface. The display portion 5 has a boss portion 52 fastened to and fixed to the first holder 7 by a screw 11.

The frame body portion 2 has a boss portion 24 on a surface facing the back surface of the display device 1. The boss portion 24 of the frame body portion 2 is fastened to the second holder 8 by a screw 12 and fixed.

The first holder 7 has a bent portion 7a extending in the front-rear direction and the up-down direction. Similarly, the second holder 8 has a bent portion 8a extending in the front-rear direction and the up-down direction. The bent portion 7a of the first holder 7 and the bent portion 8a of the second holder 8 are parallel to each other. The outer surface of the bent portion 7a of the first holder 7 and the outer surface of the bent portion 8a of the second holder 8 face each other in the left-right lateral direction and come into contact with each other.

A connecting portion 13 is provided in a contact region between the bent portion 7a of the first holder 7 and the bent portion 8a of the second holder 8. The connecting portion 13 has a screw 14 for fixing the first holder 7 and the second holder 8 to each other. The connecting portion 13 connects the first holder 7 and the second holder 8 so that the relative positions of the first holder 7 and the second holder 8 can be changed.

For example, the bent portion 8a of the second holder 8 between the head 14a of the screw 14 and the bent portion 7a of the first holder 7 is provided with a screw hole 8b formed of an elongated hole. The screw hole 8b is an elongated hole that extends long in the front-rear direction. As a result, the position of the second holder 8 can be changed relative to the first holder 7. In this way, the connecting portion 13 makes it possible to change the relative positions of the first holder 7 and the second holder 8.

According to this configuration, the relative positions of the frame body portion 2 and the display unit 5 in the front-rear direction can be arbitrarily changed. That is, the relative positions of the touch panel unit 3 fixed to the frame body unit 2 and the display unit 5 in the front-rear direction can be arbitrarily changed. As a result, the pressing force applied to the spacer 6 can be appropriately adjusted, and the distance between the touch panel unit 3 and the display unit 5 can be kept constant. Therefore, the dustproof performance can be improved, and the visibility of the screen 51 can be further improved.

<3. Others>
In addition to the above embodiments, the various technical features disclosed herein can be modified in various ways without departing from the spirit of the technical creation. That is, it should be considered that the above embodiments are exemplary in all respects and are not restrictive. It should be understood that the technical scope of the present invention is shown by the scope of claims, not the description of the above embodiment, and includes all modifications belonging to the meaning and scope equivalent to the scope of claims. Is.

1 Display device 2 Frame body 3 Touch panel 5 Display 6 Spacer 7 1st holder 8 2nd holder 9 Rear plate 13 Connection 23 Storage 23a Opening 51 Screen

Claims (3)

A display unit with a screen on which images are displayed, and
A touch panel unit arranged on the screen side of the display unit and
A frame body portion that supports the touch panel portion and has an opening on the screen side of the display portion and includes an accommodating portion of the display unit.
A spacer arranged between the display unit and the touch panel unit and outside the screen along the screen.
The first holder that supports the display unit and
A second holder that supports the frame body and
The relative positions of the first holder and the second holder can be changed in the direction in which the display unit and the touch panel unit approach and separate from each other, and the pressure applied to the spacer can be adjusted. The connection part that connects to the second holder and
Display device. The display device according to claim 1, wherein the spacer is a connecting member that connects the display unit and the touch panel unit. The display device according to claim 1, wherein the spacer is an elastic member that comes into contact with at least one of the display unit and the touch panel unit without being coupled.

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