CN213024348U - Touch control display device - Google Patents

Abstract

The utility model provides a touch-control display device. The utility model discloses a touch-control display device, including frame, display element, screen apron, apron support and connecting fastener, the frame encloses to be established at display element with the outside of screen apron, screen apron and the range upon range of setting of display element, the apron support passes through connecting fastener and connects on the frame, and the apron support supports the screen apron, connecting fastener includes the backstop portion that connects gradually along self axial, backstop step and linkage segment, the linkage segment passes the second connecting hole on first connecting hole on the apron support and the frame in proper order, and the terminal surface butt of backstop step and frame, backstop portion backstop is in the one side that the apron support deviates from the linkage segment, form the movable gap that supplies the apron support to follow the connecting fastener axial displacement between backstop step and the backstop portion. The utility model discloses have better touch and write and feel.

Description

Touch control display device

Technical Field

The utility model relates to a show technical field, especially relate to a touch-control display device.

Background

With the continuous development of science and technology, various display devices with touch functions are increasingly applied to the work and life of people.

In a conventional display device, a glass cover plate is provided outside a display module such as a display panel to protect the display module. In order to fix the glass cover plate, a glass support is arranged in the display device, the glass support is bonded with the glass through foam double-sided adhesive tape, and the glass is fixed through the clamping effect of the glass support and the filter strip of the frame; the glass support is fixed on the frame through screws, and the back plate is fastened with the frame and the glass support through screws. And in order to let display device's surface be convenient for carry on touch-control and write the operation, parts such as display device's frame, apron can form certain indent structure to let whole display device have certain indent deformation, the user can realize touch-control and write the operation on leveling or having the surface of certain indent like this, feels better.

However, under the condition of high temperature environment or higher temperature of the whole machine, due to the thermal expansion effect, the thermal expansion amount of the structures such as the glass, the frame and the like is different, so that the glass with small thermal expansion is forced to be stretched and deformed by the frame, and finally the whole machine protrudes outwards, thereby influencing the writing touch of the display device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a touch-control display device has better touch and writes and feel.

The utility model provides a touch-control display device, which comprises a frame, the display module, the screen apron, apron support and connecting fastener, the frame encloses the outside of establishing at display module and screen apron, screen apron and the range upon range of setting of display module, the apron support passes through connecting fastener and connects on the frame, and apron support supports the screen apron, connecting fastener includes the backstop portion that connects gradually along self axial, backstop step and linkage segment, be equipped with first connecting hole on the apron support, be equipped with the second connecting hole relative with first connecting hole on the frame, the linkage segment passes first connecting hole and second connecting hole in proper order, and the terminal surface butt of backstop step and frame, backstop portion backstop deviates from one side of linkage segment at the screen apron support, form the clearance that supplies the apron support to follow connecting fastener axial displacement between backstop and the backstop portion.

As an optional mode, foam is arranged between the cover plate support and the screen cover plate.

As an optional mode, the foam is a plurality of, and a plurality of foams set gradually along the circumference of screen apron.

As an optional mode, the touch display device further includes a back panel, the back panel is disposed on a side of the display module away from the screen cover, and the back panel is connected to the frame.

As an alternative, the edge of the back plate is provided with a third connecting hole, the connecting fastener passes through the third connecting hole to connect the back plate and the frame, and the back plate is clamped between the stopping portion and the cover plate bracket.

As an optional mode, the touch display device further includes a filter strip, the filter strip is connected to the frame, and the filter strip and the cover plate bracket are clamped on two opposite sides of the screen cover plate.

As an optional mode, the filter strip includes at least one protrusion, the frame includes a mounting groove corresponding to the protrusion one to one, and the protrusion is clamped in the mounting groove to connect the filter strip and the frame.

As an alternative, the cover plate bracket can move axially along the connecting fastener by a distance in the range of 0.1mm to 0.2 mm.

As an alternative, the connecting fastener is a stepped screw and the connecting section is a threaded section.

As an alternative, at least one of the bezel, the back plate, and the screen cover plate is recessed toward the inside of the touch display device.

Touch-control display device in this application includes the frame, display element, the screen apron, apron support and connecting fastener, the frame encloses the outside of establishing at display element and screen apron, screen apron and the range upon range of setting of display element, the apron support passes through connecting fastener and connects on the frame, and apron support supports the screen apron, connecting fastener includes the backstop portion that connects gradually along self axial, backstop step and linkage segment, be equipped with first connecting hole on the apron support, be equipped with the second connecting hole relative with first connecting hole on the frame, the linkage segment passes first connecting hole and second connecting hole in proper order, and the terminal surface butt of backstop step and frame, backstop portion is in the one side that the apron support deviates from the linkage segment, form the clearance that supplies the apron support to follow connecting fastener axial displacement between backstop step and the backstop portion. Therefore, the screen cover plate can move relative to the frame, so that the tensile deformation of the screen cover plate caused by inconsistent thermal expansion is reduced, and the outward deformation of the screen is reduced.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a touch display device according to an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional view of a touch display device provided in an embodiment of the present application at a frame portion;

fig. 3 is a schematic structural diagram of a touch display device at a frame portion according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a frame portion of another touch display device according to an embodiment of the present disclosure;

FIG. 5 is an enlarged partial schematic view at A of FIG. 4;

fig. 6 is a schematic overall shape diagram of a touch display device according to an embodiment of the present disclosure.

Description of reference numerals:

1-a frame;

2-a display component;

3-a screen cover plate;

4-cover plate support;

5-connecting fasteners;

6-a back plate;

7-a filter strip;

8-soaking cotton;

9-a touch frame;

11-a second connection hole;

12-mounting grooves;

21-a display panel;

22-a backlight module;

41-a first connection hole;

51-a stop;

52-stop step;

53-connecting segment;

61-third connection hole;

71-a bump;

100-touch display device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In a display device, a glass cover is provided on the outer side of a display module such as a display panel to protect the display module. The glass cover plate can isolate the display assembly inside the display device from the environment outside the display device, so that the protective effect is achieved. In order to fix the glass cover plate, a glass support is arranged in the display device, and the glass support can support the glass cover plate, so that the glass cover plate can be installed and fixed on the display device.

In a display device with a touch function, in order to facilitate a user to perform touch operations such as writing on the display device, the display device needs to be designed to be concave. Specifically, the frame, the back plate, the glass cover plate and other parts in the display device are subjected to certain concave treatment in the extending direction of the frame, the back plate, the glass cover plate and other parts, so that the central area of the display device is lower than the edge area, and the concave structure of the whole display device is realized. Therefore, when a user performs writing and other operations on the outer side of the glass cover plate of the display device, writing cannot be influenced due to the outward protrusion of the glass cover plate.

When the touch display device is operated, the touch display device may be at a higher ambient temperature, or the touch display device may have a higher temperature due to self-heating. At this time, each component of the touch display device will expand due to heat. In the structural member of the touch display device, the frame, the back plate and the glass bracket are made of metal materials, and the frame is made of aluminum profiles, wherein the thermal expansion coefficient of the frame is 2.3 × 10^-5The back plate can be made of steel and has a thermal expansion coefficient of 1.2 multiplied by 10^-5V. C. The glass cover plate is made of glass and has a thermal expansion coefficient of only 1.0 × 10^-5/℃。

Therefore, the conventional display device has the following defects:

the glass cover plate can generate smaller deformation when being heated, and the structures such as the frame and the like have larger thermal deformation. Therefore, due to the fact that the thermal deformation amount of each component of the touch display device is inconsistent, the glass cover plate can be extruded by the structures such as the frame and the back plate, and the glass cover plate is extruded or stretched to deform. Like this, even touch-control display device originally has the indent structure, under ambient temperature is higher or self heating influence, the evagination phenomenon still can appear in the glass apron to influence normal operations such as people's writing on touch-control display device.

Therefore, the application provides a touch display device which can overcome the defects.

The touch display device provided by the present application is described below with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic structural diagram of a touch display device according to an embodiment of the present disclosure. Fig. 2 is a schematic cross-sectional view of a frame portion of a touch display device according to an embodiment of the present disclosure. Fig. 3 is a schematic structural diagram of a frame portion of a touch display device according to an embodiment of the present disclosure. As shown in fig. 1 to 3, the present application provides a touch display device 100, which specifically includes a frame 1, a display module 2, a screen cover 3, a cover bracket 4, and a connecting fastener 5. The touch Display device 100 may be a Liquid Crystal Display (LCD), i.e., a Liquid Crystal Display device with a touch function.

Wherein, frame 1 encloses the outside of establishing at display element 2 and screen apron 3, and screen apron 3 and the range upon range of setting of display element 2, and apron support 4 connects on frame 1 through connecting fastener 5, and apron support 4 supports in screen apron 3.

Specifically, frame 1 can be the rectangle, and all encloses display module 2 and screen apron 3 and establish the inside at self to protect parts such as display module 2. Screen apron 3 and the range upon range of setting of display module 2, and screen apron 3 is located display module 2's the outside along screen light-emitting direction, and screen apron 3 can protect display module 2's front like this. The screen cover 3 is made of a transparent material. Illustratively, the screen cover 3 may be made of glass or the like.

In order to support and fix the screen cover 3, a cover bracket 4 is further provided in the touch display device. The cover bracket 4 may be used to support and fix an edge portion of the screen cover 3. The cover bracket 4 may cooperate with other structures to fix the screen cover 3, for example, the cover bracket 4 may cooperate with other structures of the touch display device to clamp the screen cover 3 therebetween.

In order to connect the frame 1 and the cover plate bracket 4, the touch display device further includes a plurality of connecting fasteners 5, and the connecting fasteners 5 may be disposed at different positions of the touch display device in the circumferential direction, so as to connect the frame 1 and the cover plate bracket 4 together in each direction of the circumferential direction of the touch display device. In order to enable the stress between the frame 1 and the cover plate bracket 4 to be uniform, the connecting fasteners 5 may be uniformly arranged on the frame 1 at intervals, and the connecting fasteners 5 are symmetrically arranged relative to the center line of the frame 1.

The connection fastener 5 may specifically be connected between the frame 1 and the screen cover 3 by using a threaded connection, or other fastening methods commonly used by those skilled in the art.

Specifically, connecting fastener 5 includes backstop portion 51 that connects gradually along self axial, backstop step 52 and linkage segment 53, be equipped with first connecting hole 41 on the apron support 4, be equipped with the second connecting hole 11 relative with first connecting hole 41 on the frame 1, first connecting hole 41 and second connecting hole 11 are passed in proper order to linkage segment 53, and the terminal surface butt of backstop step 52 and frame 1, backstop portion 51 backstop is in the one side that apron support 4 deviates from linkage segment 53, form the movable gap that supplies apron support 4 along 5 axial displacement of connecting fastener between backstop step 52 and the backstop portion 51. The second connection hole 11 on the frame 1 is a through hole.

Because the cover plate bracket 4 and the frame 1 are correspondingly provided with the first connection hole 41 and the second connection hole 11, the connection fastener 5 can sequentially pass through the first connection hole 41 and the second connection hole 11, and the cover plate bracket 4 and the frame 1 are fixed in the radial direction of the first connection hole 41 and the second connection hole 11. The inner diameters of the first connecting hole 41 and the second connecting hole 11 are smaller than the outer diameter of the stopping portion 51, so that the stopping portion 51 is stopped at the outer sides of the frame 1 and the cover bracket 4.

In order to form the stop step 52, a part of the structure of the fastening member 5, for example, a portion between the stopper portion 51 and the connecting portion 53, may have a radial dimension larger than that of the connecting portion 53, so that there may be a region where the outer diameter changes in the axial direction of the fastening member 5, and the stop step 52 may be formed at a position where the outer diameter changes. The outer edge diameter of the stopping step 52 is greater than the inner diameter of the second connecting hole 11 on the frame 1, so that the stopping step 52 cannot pass through the second connecting hole 11, and the stopping step 52 can abut against the end surface of the frame 1 facing the stopping portion 51. And the inner diameter of the first connection hole 41 may be larger than the outer edge diameter of the stopping step 52, so that the first connection hole 41 is sleeved outside the stopping step 52.

When the connecting section 53 of the connecting fastener 5 is connected with the frame 1, the relative position of the frame 1 and the connecting fastener 5 can be limited by the stopping of the stopping step 52, and a preset axial distance is formed between the end surface of the frame 1 and the stopping portion 51. And the position of the cover bracket 4 between the frame 1 and the stopping portion 51 of the connecting fastener 5 in the axial direction of the connecting fastener 5 is also limited in the space formed by the stopping step 52 and the stopping portion 51. The width of the cover bracket 4 in the axial direction of the connecting fastener 5 may be smaller than the axial distance between the stopping step 52 and the stopping portion 51, so that after the connecting fastener 5 connects the frame 1 and the cover bracket 4, the cover bracket 4 may have a certain moving space in the axial direction of the connecting fastener 5. When the touch display device is heated and thermally expands and deforms, the cover plate support 4 can move in the moving space to compensate for the deformation caused by the heating of the structures such as the frame 1 and the cover plate support 4, so that the screen cover plate 3 is prevented from being extruded or stretched by the structures such as the frame 1, and the outward protruding phenomenon of the touch display device is reduced or eliminated.

Wherein, as an alternative, when the cover bracket 4 is limited between the stopping portion 51 of the connecting fastener 5 and the frame 1, the axial movement distance of the cover bracket 4 along the connecting fastener 5 may be in the range of 0.1mm-0.2 mm. Therefore, when the ambient temperature changes or the touch display device generates heat during working, the screen cover plate 3 can move within a certain distance range, so that the screen cover plate 3 can move along with the cover plate bracket 4 in the axial direction relative to the connecting fastener 5, the tensile deformation of the screen cover plate 3 caused by inconsistent thermal expansion of all parts of the touch display device is reduced or even counteracted, and the outward deformation of the screen is reduced.

In order to allow the connection fastener 5 to be connected to the bezel 1, the connection fastener 5 may be a stepped screw. At this time, the connection section 53 of the connection fastener 5 is a threaded section, and correspondingly, the second connection hole 11 on the frame 1 may have an internal thread, and the connection fastener 5 and the frame 1 are fixed by the threaded connection between the connection section 53 and the internal thread of the second connection hole 11. And the outer diameter of the part structure of the connecting fastener 5 in the self-axial direction is larger than that of the thread segments, so that a stop step 52 is formed at the junction between the part structure and the thread segments. The stop step 52 may be an annular surface surrounding the connecting fastener 5 in the axial direction, and the outer edge of the annular surface protrudes from the internal thread.

In order to cushion the screen cover 3, a foam 8 is optionally provided between the screen cover 3 and the cover support 4. Bubble cotton 8 self has certain buffering and deformability, and when screen apron 3 isotructure received external force, bubble cotton 8 can slow down external force through the deformation of self and assault to protect screen apron 3. Furthermore, the foam 8 may have a certain viscosity so as to connect the screen cover 3 and the cover support 4. Compare with the current mode that utilizes the double faced adhesive tape to connect screen apron 3 and apron support 4 like this, the setting of bubble cotton 8 is comparatively simple, and it is less to consume man-hour, can effectively reduce manufacturing cost.

In an alternative embodiment, the foam 8 is provided in plurality, and the plurality of foams 8 are sequentially arranged along the circumferential direction of the screen cover 3.

Specifically, the foam 8 can be of a strip-shaped structure, and the foam 8 is connected end to end along the length direction and is arranged at the edge of the periphery of the screen cover plate 3 in a segmented manner. Like this, the different positions at 3 edges of screen apron respectively with the cotton 8 butts of different bubble, take place deformation when screen apron 3 self, perhaps receive the exogenic action and produce when shifting, the cotton 8 of different bubble can be along with the corresponding removal that produces of deformation and displacement of the different positions of screen apron 3 to reduce the deformation phenomenon that screen apron 3 produced because of the atress inequality.

In the touch display device 100, the display module 2 may include different components such as a display panel 21 and a backlight module 22. The display panel 21 may be a liquid crystal display panel, and since the liquid crystal display panel itself does not emit light, the backlight module 22 is disposed on the back side of the display panel 21, and the backlight module 22 may provide a backlight source for the display panel 21, so that the touch display device 100 performs normal display of a picture. The backlight module 22 may be a side-in type backlight module, or a direct type backlight module.

Fig. 4 is a schematic structural diagram of a frame portion of another touch display device according to an embodiment of the present disclosure. Fig. 5 is a partially enlarged schematic view at a in fig. 4. As shown in fig. 4 and fig. 5, in order to accommodate and protect these structures in the display module 2, optionally, the touch display device 100 further includes a back plate 6, the back plate 6 is disposed on a side of the display module facing away from the screen cover 3, and the back plate 6 is connected to the frame 1.

Specifically, the back plate 6 covers the back side of the touch display device to protect the internal components of the touch display device from the back side of the touch display device. The central portion of the back plate 6 may protrude toward the back side of the touch display device relative to the edge portion, so as to form an accommodating cavity in which components such as a backlight module in the display module may be accommodated.

Wherein, the edge of the back plate 6 is connected to the frame 1, so that the back plate 6, the frame 1 and the cover plate bracket 4 can be connected together into a whole.

As an alternative, the back panel 6 may also be attached to the frame 1 by means of attachment fasteners 5. Specifically, the edge of the back plate 6 is provided with a third connecting hole 61, the connecting fastener 5 passes through the third connecting hole 61 to connect the back plate 6 and the frame 1, and the back plate 6 is sandwiched between the stopper portion 51 and the cover bracket 4. The third connecting hole 61 is a through hole, and the inner diameter of the third connecting hole 61 is larger than the outer diameter of the stopping step 52 in the connecting fastener 5 and smaller than the inner diameter of the stopping portion 51, so that the stopping portion 51 is stopped at one side of the back plate 6 while the connecting fastener 5 normally passes through.

Wherein, third connecting hole 61, first connecting hole 41 and second connecting hole 11 all set up coaxially to let connecting fastener 5 can pass third connecting hole 61, first connecting hole 41 and second connecting hole 11 in proper order, and link together backplate 6, apron support 4 and frame 1. It can be understood that the first connection hole 41, the second connection hole 11, and the third connection hole 61 may be provided in plurality and arranged at intervals in the circumferential direction of the touch display device, and the first connection hole 41, the second connection hole 11, and the third connection hole 61 may be disposed in a one-to-one correspondence.

At this time, the backboard 6 may be located on one side of the cover bracket 4 facing the stopping portion 51, and therefore, the stopping portion 51 and the cover bracket 4 may be respectively supported on two opposite sides of the edge of the backboard 6 and sandwich the edge of the backboard 6 therein, thereby completing the fixing of the backboard 6.

Alternatively, since the back plate 6 and the cover bracket 4 are both connected to the frame 1 by the connecting fastener 5, and the back plate 6 is located between the cover bracket 4 and the stopping portion 51 of the connecting fastener 5, the cover bracket 4 will also have a certain moving space in the axial direction of the connecting fastener 5. Optionally, the stopping portion 51 of the connecting fastener 5 and the cover plate bracket 4 may be reserved with an assembly gap of 0.2-0.3mm, and the assembly gap may form a moving space of the back plate 6 in the axial direction of the connecting fastener 5.

In order to make the touch display device 100 have a touch operation function, a touch component is disposed in the touch display device 100. The touch assembly can be of many different structures and types. As an optional implementation manner, the touch display device 100 further includes a touch frame 9 and a filter strip 7, the filter strip 7 is disposed on the frame 1, and the filter strip 7 and the cover plate bracket 4 are sandwiched on two opposite sides of the screen cover plate 3.

Wherein, touch frame 9 sets up on frame 1, and touch frame 9 is including infrared units such as infrared transmitting tube and infrared receiving tube, and infrared transmitting tube is used for sending the infrared ray, and infrared receiving tube receives the infrared ray. When a user performs touch operation on the touch display device, the transmission of infrared rays is blocked, and the touch display device can judge the touch operation of the user according to the transmission condition of the infrared ray signal. And the filter strip 7 can be arranged in front of the infrared unit in a blocking mode, so that ambient light is filtered, and the detection precision of the touch control assembly is improved. Alternatively, the light-filtering strip 7 may be made of a transparent plastic material, which has a high transmittance for infrared light and a high fiber blocking ratio for visible light.

The filter strip 7 may be disposed on the front side of the frame 1, for example, in a light-transmitting window of the frame 1. So that the infrared unit emits or receives light via the filter strip 7.

In particular, the light filter strip 7 may be located on a side of the screen cover 3 facing away from the display assembly, i.e. in front of the screen cover 3. And the cover plate support 4 can be supported on the side of the screen cover plate 3 departing from the filter strip 7, so that the cover plate support 4 and the filter strip 7 can clamp the screen cover plate 3 together to realize the fixation of the screen cover plate 3. The surface of the filter strip 7 abutting against the screen cover plate 3 can be a plane so as to improve the support stability of the filter strip 7 on the screen cover plate 3. The length direction of the light filtering strips 7 extends along the length direction of the corresponding side edge of the frame 1, so that the light filtering strips can be arranged at the edge of the screen cover plate 3 in a blocking mode, and the light filtering effect is good.

To fix the filter strip 7, the filter strip 7 may be fixed and connected to the bezel 1. Specifically, the frame 1 and the filter strip 7 can be fixed to each other in a detachable manner such as clamping. Alternatively, the frame 1 and the filter strip 7 may be snap-fit connected. At this time, the mounting groove 12 may be disposed on the frame 1, and the protrusion 71 may be disposed on the light filter strip 7, and the protrusion 71 is inserted into the mounting groove 12, so as to fix the light filter strip 7 on the frame 1.

Wherein, the extending direction of mounting groove 12 and the length direction of arch 71 all can be parallel with the length direction of the corresponding side of frame 1, and light filtering strip 7 can let arch 71 card establish in mounting groove 12 through the slip mode like this to be convenient for the connection between light filtering strip 7 and the frame 1.

Alternatively, the mounting groove 12 may be provided on the light filter strip 7, and the protrusion 71 that can be inserted into the mounting groove 12 may be provided on the frame 1, so that the light filter strip 7 is clamped on the frame 1.

Meanwhile, as an alternative, the filter strip 7 may have a plurality of protrusions 71 thereon. Specifically, two mounting grooves 12 are formed in the frame 1, two protrusions 71 are formed in the filter strip 7, and the protrusions 71 and the mounting grooves 12 are in one-to-one correspondence and clamped.

In order to improve the connection reliability of the filter strip 7, as an alternative embodiment, when the filter strip 7 is fixed to the frame 1 through a plurality of mounting grooves 12, the notches of different mounting grooves 12 may be deviated to different directions, so that the protrusion 71 is not easily removed from the mounting groove 12, and the connection structure of the filter strip 7 is stable.

Besides the clamping manner, the filter strips 7 may be connected to the frame 1 by other manners, such as adhering the filter strips 7 to the frame 1, and the installation and connection manner of the filter strips 7 is not limited herein.

Fig. 6 is a schematic overall shape diagram of a touch display device according to an embodiment of the present disclosure. As shown in fig. 1 to 6, in order to facilitate a user to perform a touch operation such as writing on the touch display device, the touch display device may be formed with a concave structure. Specifically, in an alternative embodiment, one or more of the bezel 1, the back plate 6 and the screen cover 3 may be recessed toward the inner side of the touch display device 100, so that the central portion of the touch display device 100 is recessed relative to the peripheral portion. At this time, the edges of the top side and the bottom side of the touch display device 100 are both arc-shaped, and the left and right sides of the touch display device 100 can still be kept in a straight state.

Thus, the central portion of the touch display device 100 is recessed inward relative to the edge portion, so that when a user performs touch and writing operations on the surface of the touch display device 100, fingers or other touch objects are not easily separated from the surface of the touch display device 100, and the touch operation hand feeling of the user is good.

In this embodiment, touch-control display device includes the frame, display element, the screen apron, apron support and connecting fastener, the frame encloses the outside of establishing at display panel and screen apron, screen apron and the range upon range of setting of display element, the apron support passes through connecting fastener and connects on the frame, and apron support supports the screen apron, connecting fastener includes the backstop portion that connects gradually along self axial, backstop step and linkage segment, be equipped with first connecting hole on the apron support, be equipped with the second connecting hole relative with first connecting hole on the frame, the linkage segment passes first connecting hole and second connecting hole in proper order, and the terminal surface butt of backstop step and frame, backstop portion deviates from one side of linkage segment at the apron support, form the clearance that supplies the apron support to follow the axial displacement of connecting fastener between backstop step and the backstop portion. Therefore, the screen cover plate can move relative to the frame, so that the tensile deformation of the screen cover plate caused by inconsistent thermal expansion is reduced, and the outward deformation of the screen is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A touch display device is characterized by comprising a frame, a display assembly, a screen cover plate, a cover plate support and a connecting fastener, wherein the frame is arranged around the outer sides of the display assembly and the screen cover plate; the connecting fastener includes backstop portion, backstop step and the linkage segment that connects gradually along self axial, be equipped with first connecting hole on the apron support, be equipped with on the frame with the second connecting hole that first connecting hole is relative, the linkage segment passes in proper order first connecting hole with the second connecting hole, just the backstop step with the terminal surface butt of frame, backstop portion backstop is in the apron support deviates from one side of linkage segment, the backstop step with form the confession between the backstop portion the apron support is followed connecting fastener axial displacement's clearance.

2. The touch display device of claim 1, wherein foam is disposed between the cover bracket and the screen cover.

3. The touch display device according to claim 2, wherein the foam is provided in plurality, and the foam is sequentially arranged along a circumferential direction of the screen cover.

4. The touch display device according to any one of claims 1 to 3, further comprising a back plate, wherein the back plate is disposed on a side of the display assembly facing away from the screen cover, and the back plate is connected to the bezel.

5. The touch display device according to claim 4, wherein a third connection hole is formed in an edge of the back plate, the connection fastener penetrates through the third connection hole to connect the back plate and the bezel, and the back plate is sandwiched between the stopper portion and the cover bracket.

6. The touch display device according to any one of claims 1 to 3, further comprising a filter strip, wherein the filter strip is connected to the bezel, and the filter strip and the cover bracket are clamped on opposite sides of the screen cover.

7. The touch display device according to claim 6, wherein the light filter strip includes at least one protrusion, the frame includes a mounting groove corresponding to the protrusion one to one, and the protrusion is engaged with the mounting groove to connect the light filter strip and the frame.

8. The touch display device according to any one of claims 1 to 3, wherein the cover bracket is movable in the axial direction of the connection fastener by a distance in the range of 0.1mm to 0.2 mm.

9. The touch display device of any one of claims 1-3, wherein the connection fastener is a stepped screw and the connection segment is a threaded segment.

10. The touch display device of claim 4, wherein at least one of the bezel, the back plate, and the screen cover plate is recessed inward of the display device.

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