CN217606496U - Display device - Google Patents

Abstract

The embodiment of the application provides a display device. In the display device that this application embodiment provided, along the first direction of perpendicular to backplate, the somatic part protrusion in display panel of gluey frame subassembly, and display panel and gluey frame subassembly orthographic projection at the backplate, all covered at the orthographic projection of backplate by first substrate base plate among the touch panel, thereby receive external force impact's in-process at display device, the touch panel that is located the outside can extrude gluey frame subassembly earlier, at this in-process, gluey frame subassembly has played the cushioning effect, thereby can reduce touch panel to the extrusion of display panel, and then can reduce the influence of external force impact to display panel, can reduce the damaged probability of display panel, thereby can improve display device's life.

Description

Display device

Technical Field

The application relates to the technical field of display, in particular to a display device.

Background

With the development of display technologies, touch display devices are applied in more and more scenes, and for touch display devices applied in public places and industrial places, the touch display devices need to have certain impact resistance without affecting functions such as display and touch.

However, the conventional touch display device has poor impact resistance, so that the touch display device is easy to damage in the using process.

SUMMERY OF THE UTILITY MODEL

The application provides a display device aiming at the defects of the prior art, and is used for solving the technical problem that the shock resistance of the touch display device in the prior art is poor.

An embodiment of the present application provides a display device, including:

a back plate;

the rubber frame assembly is at least partially arranged on one side of the back plate and comprises a rubber frame, the rubber frame comprises a body part and a step part, and the step part extends inwards along the direction parallel to the back plate;

the display panel is arranged on one side of the back plate and is connected with the step part;

the touch panel is arranged on one side of the display panel, which is far away from the back plate; the touch panel comprises a first substrate base plate, the orthographic projection of the first substrate base plate on the backboard covers the orthographic projection of the display panel and the rubber frame assembly on the backboard; the body portion protrudes from the display panel along a first direction perpendicular to the back panel.

The technical scheme provided by the embodiment of the application brings beneficial technical effects that:

in the display device that this application embodiment provided, along the first direction of perpendicular to backplate, the somatic part protrusion in display panel of gluey frame subassembly, and display panel and gluey frame subassembly orthographic projection at the backplate, all covered at the orthographic projection of backplate by first substrate base plate among the touch panel, thereby receive external force impact's in-process at display device, the touch panel that is located the outside can extrude gluey frame subassembly earlier, at this in-process, gluey frame subassembly has played the cushioning effect, thereby can reduce touch panel to the extrusion of display panel, and then can reduce the influence of external force impact to display panel, can reduce the damaged probability of display panel, thereby can improve display device's life.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of a display device according to an embodiment of the present disclosure;

fig. 2 is a schematic partial cross-sectional structural view of the display device shown in fig. 1 according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of an exploded structure of the display device shown in fig. 1 except for a touch panel according to an embodiment of the present disclosure;

fig. 4 is a schematic partial cross-sectional view of the display device shown in fig. 1 except for a touch panel according to an embodiment of the present disclosure;

fig. 5 is a schematic partial cross-sectional structure view of the display device shown in fig. 1 except for a touch panel according to an embodiment of the present disclosure.

Description of reference numerals:

10-a back plate; 103-a backplane body; 104-a bending part;

11-a glue frame assembly; 101-a rubber frame; 111-a body portion; 112-a step portion; 1011-groove; 102-a first tape;

12-a second adhesive tape; 13-a reflective sheet; 14-a light guide plate; 15-a third tape;

16-an optical film layer; 161-a first optical film layer; 1611-ear-hanging portions of the optical film layer 16; 162-a second optical film layer; 163-a third optical film layer;

17-a light bar; 18-a reflector;

200-a display panel; 201-a first polarizer; 202-color film substrate; 203-an array substrate; 204-a second polarizer; 205-flexible circuit board;

300-a touch panel; 301-a first substrate base plate; 302-protective cover plate; 303 — a first adhesive layer; 304-a second adhesive layer;

401 — a display area; 402 peripheral region.

Detailed Description

Embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the embodiments set forth below in connection with the drawings are exemplary descriptions for explaining technical solutions of the embodiments of the present application, and do not limit the technical solutions of the embodiments of the present application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, and/or operations, but do not preclude the presence or addition of other features, information, data, steps, operations, and/or groups thereof, that may be implemented as required by the art. The term "and/or" as used herein means at least one of the items defined by the term, e.g., "a and/or B" may be implemented as "a", or as "B", or as "a and B".

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Several terms referred to in this application will first be introduced and explained:

the touch panel is mainly used for sensing and receiving a contact signal input by contact, and therefore, the touch panel is often required to be arranged on the outermost side of the touch display device.

With the development of display technologies, the application scenarios of touch display devices are increasing, and for example, touch display devices are installed in public places such as bus stations, high-speed rail stations, subway stations, hospitals, and the like, so that users can conveniently perform operations such as information inquiry, ticket buying, registration, and the like. However, the existing touch display device has the following defects:

1. the touch display device has poor performance of resisting external force impact, particularly for the touch display device applied to public places and industrial places, the environment where the touch display device is located is complex, and the touch display device is easily damaged by external force.

2. Touch panel and display panel need be glued through the laminating and are connected, and at touch panel and display panel's laminating in-process, the laminating is glued and is released the bubble easily, if the bubble can not discharge completely, not only can influence touch panel and display panel's laminating effect, still can influence final touch-control display device's display effect.

3. Because the touch display device comprises the plurality of optical film layers, the optical film layers are easy to expand along with the rise of the temperature and contract along with the reduction of the temperature, and for the touch display device applied to a scene with large temperature change, the deformation of the optical film layers is easy to cause the occurrence of wrinkles, and the wrinkles can influence the passing of backlight light, reduce the uniformity of the light and further influence the display effect.

The present application provides a display device, which aims at the above technical problems of the prior art.

The following describes the technical solution of the present application and how to solve the above technical problems in detail by specific embodiments. It should be noted that the following embodiments may be referred to, referred to or combined with each other, and the description of the same terms, similar features, similar implementation steps and the like in different embodiments is not repeated.

An embodiment of the present application provides a display device, an explosion structure schematic diagram of which is shown in fig. 1, and the display device shown in fig. 1 includes: the back plate 10, the rubber frame assembly 11, the display panel 200 and the touch panel 300.

In the embodiment of the present application, at least a portion of the rubber frame assembly 11 is disposed on one side of the back plate 10, the rubber frame assembly 11 includes the rubber frame 101, the rubber frame 101 includes the main body 111 and the step portion 112, and the step portion 112 extends inward along a direction parallel to the back plate 10. The display panel 200 is disposed on one side of the back plate 10 and connected to the step portion 112. A touch panel 300 disposed on a side of the display panel 200 away from the backplate 10; the touch panel 300 comprises a first substrate 301, wherein the orthographic projection of the first substrate 301 on the back panel 10 covers the orthographic projection of the display panel 200 and the rubber frame assembly 11 on the back panel 10; the body portion 111 protrudes from the display panel 200 along a first direction perpendicular to the rear panel 10.

In the display device provided in the embodiment of the application, along the first direction perpendicular to the backplane 10, the body 111 of the rubber frame assembly 11 protrudes out of the display panel 200, and the orthographic projections of the display panel 200 and the rubber frame assembly 11 on the backplane 10 are both covered by the orthographic projection of the first substrate 301 in the touch panel 300 on the backplane 10, so that in the process that the display device is impacted by external force, the touch panel 300 located at the outermost side will first squeeze the rubber frame assembly 11, in this process, the rubber frame assembly 11 plays a role in buffering, thereby being capable of reducing the squeezing of the touch panel 300 on the display panel 200, further being capable of reducing the influence of the impact of the external force on the display panel 200, being capable of reducing the probability of breakage of the display panel 200, and being capable of prolonging the service life of the display device.

In the embodiment of the present application, as shown in fig. 2, at least a portion of the rubber frame assembly 11 is disposed on one side of the back plate 10, and the rubber frame 101 of the rubber frame assembly 11 includes a body portion 111 and a step portion 112, where the step portion 112 extends inward along a direction parallel to the back plate 10. It should be noted that the step portion 112 extends inward, which means that the step portion 112 extends toward the inside of the display device in a direction parallel to the rear panel 10, so that the step portion 112 is stepped with respect to the body portion 111.

In the embodiment of the present application, the display panel 200 is disposed on one side of the back plate 10 and connected to the step portion 112 of the rubber frame 101. Alternatively, as shown in fig. 2, the orthographic projection of the display panel 200 on the back panel 10 is separated from the orthographic projection of the body portion 111 of the rubber frame 101 on the back panel 10, that is, in the third direction, a gap is provided between the edge of the display panel 200 and the inner edge of the body portion 111, so that the installation of the display panel 200 is facilitated, and the display panel 200 and the rubber frame 101 can be prevented from being in interference contact. Alternatively, as shown in fig. 2, the display panel 200 is fixedly connected to the step portion 112 of the adhesive frame assembly 11 through the third adhesive tape 15.

In the embodiment of the application, as shown in fig. 2, a color filter substrate 202 and an array substrate 203 are arranged in a box-to-box manner, a first polarizer 201 is arranged on one side of the color filter substrate 202 away from the array substrate 203, and a second polarizer 204 is arranged on one side of the array substrate 203 away from the color filter substrate 202.

As will be appreciated by those skilled in the art, the thicknesses of the color filter substrate 202 and the array substrate 203 are usually 0.2 to 0.5 mm, and the main materials of the color filter substrate 202 and the array substrate 203 are glass, so that the strength of the display panel 200 is low, and when the display panel is impacted by an external force, the color filter substrate 202 and the array substrate 203 are easily broken, thereby causing damage to the display panel 200.

In the embodiment of the present application, as shown in fig. 2, a touch panel 300 is disposed on a side of the display panel 200 away from the backplane 10, an orthographic projection of a first substrate 301 of the touch panel 300 on the backplane 10 covers the orthographic projection of the display panel 200 and the rubber frame assembly 11 on the backplane 10, and the body 111 protrudes out of the display panel 200 along a first direction perpendicular to the backplane 10, so that in a process that the display device is impacted by an external force, the touch panel 300 firstly extrudes the rubber frame assembly 11, because a preparation material of the rubber frame assembly 11 has good elasticity, in the impacting process, the rubber frame assembly 11 can play a certain buffering role, thereby reducing a probability that the touch panel 300 continuously extrudes the display panel 200, and reducing an extrusion effect of the touch panel 300 on the display panel 200, further reducing an influence of the external force impact on the display panel 200, and reducing a probability that the display panel 200 is damaged, thereby improving a service life of the display device, and expanding an application scene of the display device.

In the embodiment of the present application, as shown in fig. 2, the display device includes a display area 401 and a peripheral area 402 surrounding the display area 401, and the glue frame assembly 11 is located in the peripheral area 402.

In one embodiment of the present application, the adhesive frame assembly 11 includes a first adhesive tape 102, and the first adhesive tape 102 wraps a portion of the body portion 111. The distance between the first surface of the first tape 102 and the first surface of the display panel 200 along the first direction is 0.1-0.55 mm. The first surface of the first adhesive tape 102 is a surface of the first adhesive tape 102 away from the main body 111, and the first surface of the display panel 200 is a surface of the display panel 200 away from the rear panel 10.

In the embodiment of the present application, as shown in fig. 2, the glue frame assembly 11 includes a glue frame 101 and a first adhesive Tape 102, the glue frame 101 is disposed on one side of the back plate 10, optionally, the first adhesive Tape 102 is a CT (Cell Tape), and the first adhesive Tape 102 wraps a part of the back plate 10 and a part of the glue frame 101, so as to fixedly connect the glue frame 101 with the back plate 10.

In the embodiment of the present application, as shown in fig. 2, a step difference exists between the first tape 102 and the display panel 200 along the first direction, specifically, a distance between the first surface of the first tape 102 and the first surface of the display panel 200 is 0.1 to 0.55 mm, that is, a distance between the upper surface of the first tape 102 and the upper surface of the display panel 200 is 0.1 to 0.55 mm.

Alternatively, in the case that the first adhesive tape 102 does not cover the body portion 11, a step difference exists between the body portion 111 and the display panel 200 along the first direction, specifically, a distance between a first surface of the body portion 111 and a first surface of the display panel 200 is 0.1 to 0.55 mm, that is, a distance between an upper surface of the body portion 111 and an upper surface of the display panel 200 is 0.1 to 0.55 mm.

It should be noted that, in the present application, all numerical ranges are inclusive, unless otherwise specified.

In the embodiment of the present application, as shown in fig. 2, the distance between the upper surface of the first tape 102 and the upper surface of the display panel 200 is the difference between the distance a and the distance b. As shown in fig. 2, in the first direction, a distance between an upper surface of the display panel 200 and a lower surface of the first substrate base 301 is a distance a; the distance between the lower surface of the first substrate base plate 301 and the upper surface of the first tape 102 in the first direction is a distance b, so that the distance between the upper surface of the first tape 102 and the upper surface of the display panel 200 can be determined according to the distance a and the distance b.

Optionally, the distance a ranges from 0.15 mm to 0.6 mm, and the distance b ranges from 0.05 mm to 0.4 mm.

In one embodiment of the present application, the touch panel 300 further includes a protective cover plate 302 disposed on a side of the first substrate base 301 away from the backplate 10; the bending strength of the protective cover plate 302 and the first substrate base plate 301 is between 300 and 600 mpa.

In the embodiment of the present application, as shown in fig. 1 and fig. 2, the protective cover plate 302 is disposed on a side of the first substrate base plate 301 away from the backplate 10. Optionally, the first substrate 301 is SG (Sensor Glass) for sensing touch operation information; the protective Cover plate 302 is CG (Cover Glass) for protecting the first substrate 301 and preventing the first substrate 301 from being damaged by scratching.

In the embodiment of the application, the bending strength of the first substrate base plate 301 and the bending strength of the protective cover plate 302 are 300-600 mpa, so that the structural strength of the touch panel can be guaranteed, the external impact resistance of the touch panel can be improved, the external impact resistance of the display device can be improved, and the service life of the display device can be prolonged.

Alternatively, the main material of the first substrate base plate 301 and the protective cover plate 302 is glass, and in order to improve the bending strength of the first substrate base plate 301 and the protective cover plate 302, the glass plates used for preparing the first substrate base plate 301 and the protective cover plate 302 may be processed by physical strengthening, chemical strengthening, and other processes.

Alternatively, the physical strengthening process may be an edging process, and due to the limitation of the cutting process, minute cracks or fissures are formed on the edge of the cut glass sheet, and when the glass sheet is impacted by external force, stress is easily concentrated on the cracks or fissures, so that the glass sheet is broken. The edge grinding treatment process is used for removing cracks and cracks on the edge of the glass plate, so that the phenomenon of local stress concentration can be eliminated, the strength of the glass plate can be enhanced, and the strength of the first substrate base plate 301 and the protective cover plate 302 which are prepared by the glass plate can be enhanced. Alternatively, the physical strengthening process may also be a heat treatment process.

In the embodiment of the present application, the thickness of the first substrate base 301 is 0.5 to 2 mm, and optionally, the thickness of the first substrate base 301 is 1.1 mm. The thickness of the protective cover sheet 302 is 1-3 mm, and optionally the thickness of the protective cover sheet 302 is 1.8 mm.

In the embodiment of the application, as shown in fig. 1 and fig. 2, the touch panel 300 further includes a first adhesive layer 303 and a second adhesive layer 304. The first bonding layer 303 is disposed on a side of the first substrate base plate 301 away from the protective cover plate 302, and is used for bonding the first substrate base plate 301 and the display panel 200; the second adhesive layer 304 is disposed between the first substrate base 301 and the protective cover sheet 302, and is used to adhere the first substrate base 301 and the protective cover sheet 302.

Optionally, the first Adhesive layer 303 and the second Adhesive layer 304 are both made of OCA (optical Clear Adhesive), and optionally, the thickness of the first Adhesive layer 303 is 0.15-1mm.

In the embodiment of the present application, as shown in fig. 2, the outer periphery of the protective cover plate 302 protrudes from the first substrate base plate 301 along the direction parallel to the third direction, that is, the protective cover plate 302 extends outward compared to the first substrate base plate 301 to form an extension portion, and the extension portion is used for being assembled with the housing of the display device.

The inventor of the application finds through tests that the display device can bear 6.5J (joule) of impact energy, the whole appearance structure of the display device is not obviously damaged, and the touch function and the display function of the display device are not damaged.

At present, in the laminating process of the touch panel and the display panel, the laminating adhesive is easy to release bubbles, and if the bubbles cannot be completely discharged, the laminating effect of the touch panel and the display panel can be influenced, and the display effect of the final touch display device can also be influenced. The present application provides the following embodiments to solve this problem.

In one embodiment of the present application, the distance between the first surface of the first tape 102 and the second surface of the first substrate base plate 301 in the frame assembly 11 is 0.05-0.4 mm in the first direction; the second surface of the first substrate base 301 is the surface of the first substrate base 301 close to the backplate 10.

In the embodiment of the present application, as shown in fig. 2, in the display device, a gap is formed between the first tape 102 and the first substrate board 301 in the adhesive frame assembly 11, and by providing the gap, a sealed space can be prevented from being formed by the first substrate board 301, the adhesive frame assembly 11, and the back plate 10. Therefore, in the process of attaching the display panel 200 to the touch panel 300, especially in the process of vacuum defoaming and curing the OCA for bonding the display panel 200 and the touch panel 300, the bubbles released by the OCA can be discharged through the gap, and the bonding effect of the display panel 200 and the touch panel 300 can be prevented from being influenced by the expansion of the bubbles. Meanwhile, the bubbles can be prevented from diffusing to the display area 401 of the display device, so that the display effect of the display device can be guaranteed.

In the embodiment of the present application, as shown in fig. 2, in the first direction, a distance between the first surface of the first tape 102 and the second surface of the first substrate base plate 301 in the tape frame assembly 11 is 0.05 to 0.4 mm, that is, a distance between the upper surface of the first tape 102 and the lower surface of the first substrate base plate 301 is 0.05 to 0.4 mm.

Alternatively, in the case that the first adhesive tape 102 does not cover the body portion 11, a step difference is formed between the body portion 111 and the display panel 200 along the first direction, specifically, a distance between a first surface of the body portion 111 and a second surface of the first substrate board 301 is 0.05 to 0.4 mm, that is, a distance between an upper surface of the body portion 111 and an upper surface of the display panel 200 is 0.1 to 0.55 mm.

In one embodiment of the present application, the touch panel 300 further includes a first adhesive layer 303 disposed between the first substrate base 301 and the first surface of the display panel 200; the first adhesive layer 303 is in contact with or separated from the orthographic projection of the back plate 10 of the rubber frame assembly 11.

In the embodiment of the present application, as shown in fig. 2, the first adhesive layer 303 is provided between the first substrate base 301 and the first surface of the display panel 200 to adhere the first substrate base 301 and the display panel 200.

In this application embodiment, the orthographic projection of the first bonding layer 303 on the backplate 10 contacts or phase separates with the orthographic projection of gluing the frame subassembly 11 on the backplate 10, thereby can avoid the first bonding layer 303 to cover gluing the frame subassembly 11, thereby can avoid the first bonding layer 303 to block up the gap between this main part 111 and the first substrate base plate 301, and the bubble of guaranteeing the OCA release can be discharged through this gap smoothly.

Alternatively, as shown in fig. 2, the orthographic projection of the first adhesive layer 303 on the back plate 10 is separated from the orthographic projection of the rubber frame assembly 11 on the back plate 10.

It should be noted that, according to actual requirements, a person skilled in the art can control the distance between the first surface of the body portion 111 and the second surface of the first substrate base plate 301 by controlling the thickness of the first adhesive layer 303.

In one embodiment of the present application, the display panel 200 includes a first polarizer 201 disposed on a side of the first adhesive layer 303 away from the first substrate base 301; the orthographic projection of the first bonding layer 303 on the back panel 10 is overlapped with the orthographic projection of the first polarizer 201 on the back panel 10.

In the embodiment of the present application, as shown in fig. 2, the orthographic projection of the first adhesive layer 303 on the rear panel 10 overlaps with the orthographic projection of the first polarizer 201 on the rear panel 10, that is, the size and the shape of the first adhesive layer 303 are the same as those of the first polarizer 201, so that the first adhesive layer 303 can be prevented from blocking the gap between the body portion 111 and the first substrate board 301.

Meanwhile, in the process of attaching the display panel 200 to the touch panel 300, the first bonding layer 303 is conveniently attached to one side of the first polarizer 201 away from the back plate 10, and then the first substrate base plate 301 of the touch panel 300 is directly attached to the first bonding layer 303, so that the first bonding layer 303 and the first polarizer 201 can be conveniently aligned, the attaching efficiency of the display panel 200 and the touch panel 300 can be improved, and the production efficiency of the display device can be improved.

At present, an optical film layer of a display device is easy to expand along with the rise of temperature and contract along with the reduction of temperature, and for the display device applied to a scene with large temperature change, the deformation of the optical film layer easily causes the appearance of wrinkles, and the wrinkles can influence the passing of backlight light, reduce the uniformity of the light, thereby influencing the display effect. The present application provides the following embodiments to solve this problem.

In one embodiment of the present application, the display device further includes: a backlight assembly disposed between the rear panel 10 and the display panel 200; the back plate 10 comprises a back plate body 103 and a bending part 104 arranged at one end of the back plate body 103; the backlight assembly includes a reflector 18 disposed in the bending portion 104 and facing the back plate body 103.

In the embodiment of the present application, as shown in fig. 3, the display device further includes a backlight assembly disposed between the back plate 10 and the display panel 200. Alternatively, the backlight assembly includes the second adhesive tape 12, the reflective sheet 13, the light guide plate 14, the third adhesive tape 15, the optical film layer 16, the light bar 17, and the reflective member 18.

Optionally, as shown in fig. 3 to fig. 5, the rear panel 10 includes a rear panel body 103 and a bending portion 104, the bending portion 104 is disposed at one end of the rear panel body 103 along a third direction, the reflection sheet 13 is disposed at one side of the rear panel body 103, the light guide plate 14 and the light bar 17 are disposed at the same layer and are both disposed at one side of the reflection sheet 13 away from the rear panel body 103, the light bar 17 is located in the bending portion 104, the light guide plate 14 is configured to guide a scattering direction of light emitted by the light bar 17, and the reflection sheet 13 is configured to reflect the light emitted by the light bar 17, so that the light emitting direction faces the display panel 200. The rubber frame 101 is disposed between the light guide plate 14 and the optical film layer 16.

In the embodiment of the present application, as shown in fig. 4 and fig. 5, the reflective sheet 13 is disposed in the bending portion 104 and faces the rear panel body 103, so as to prevent light emitted by the light bar 17 from being exposed from a portion of the light guide plate 14 near the edge of the bending portion 104, and thus, the problem of light leakage of the display device can be avoided.

In the embodiment of the present application, as shown in fig. 3 to fig. 5, the reflective sheet 13 and the light guide plate 14 are fixedly connected to the back plate body 103 through the second adhesive tape 12, and at least a portion of the reflective sheet 13 and the light guide plate 14 is covered by the protrusion 112 of the adhesive frame assembly 11. In the first direction, the upper surface of the optical film layer 16 is lower than the upper surfaces of the convex portions 112.

A portion of the third adhesive tape 15 is disposed on the upper surface of the optical film layer 16 to connect and fix the optical film layer 16, and optionally, the third adhesive tape 15 is a square adhesive, i.e. the inner edge of the third adhesive tape 15 encloses a shape matching the shape enclosed by the outer edge of the display area 401. Optionally, the inner edge of the third tape 15 coincides with the outer edge of the display area 401. Alternatively, in the display device, the distances between the inner edge of the third tape 15 and the outer edge of the display region 401 are equal in the second direction or the third direction, so that the brightness uniformity of the edge of the display region 401 can be ensured.

In an embodiment of the present application, the display panel 200 includes a second polarizer 204 disposed on a side of the first polarizer 201 of the display panel 200 away from the touch panel 300, and an orthogonal projection of the reflector 13 on the back plate body 103 is in contact with or separated from an orthogonal projection of the second polarizer 204 on the back plate body 103.

In the embodiment of the present application, as shown in fig. 4 and fig. 5, the second polarizer 204 is disposed on one side of the optical film layer 16 away from the backplane body 103, and the reflector 13 is in the orthographic projection of the backplane body 103, and is in contact with or separated from the orthographic projection of the second polarizer 204 on the backplane body 103, so as to avoid slowing down or avoiding the optical film layer 16 from being extruded by the second polarizer 204 and the backplane body 103, and avoid the optical film layer 16 from being wrinkled, so as to ensure the uniformity of the light bar 17 after the light passes through, and further ensure the display effect of the display device.

In one embodiment of the present application, a distance between an inner edge of the reflective member 13 and an adjacent edge of the display region 401 of the display device in the third direction is 0.8-1.5 mm; and/or the distance between the edge of the second polarizer 204 and the adjacent edge of the display area 401 is 0.75-2.5 mm along a third direction, wherein the third direction is parallel to the back panel body 103 and is perpendicular to the second direction.

In the embodiment of the present application, the distance between the inner edge of the reflector 13 and the adjacent edge of the display area 401 of the display device along the third direction is 0.8 to 1.5 mm, so that the orthographic projection of the reflector 13 on the rear panel body 103 can be ensured to be in contact with or separated from the orthographic projection of the second polarizer 204 on the rear panel body 103.

In the embodiment of the present application, along the third direction, the distance between the edge of the second polarizer 204 and the adjacent edge of the display area 401 is 0.75 to 2.5 mm, so that the orthographic projection of the reflector 13 on the rear panel body 103 can be ensured to be in contact with or separated from the orthographic projection of the second polarizer 204 on the rear panel body 103.

It should be noted that the specific value ranges of the distances are obtained through creative work in the present invention, and each distance adopts a corresponding specific value range, so that the optical film layer 16 can be prevented from being extruded by the second polarizer 204 and the backplane body 103, and the optical film layer 16 can be prevented from being wrinkled under the condition that the normal display effect of the display device is not affected, so that the uniformity of light emitted by the light bar 17 after passing through can be ensured.

In one embodiment of the present application, the backlight assembly further includes a light guide plate 14 and a plurality of optical film layers 16, the light guide plate 14 is disposed at one side of the back plate body 103, and the reflective member 18 and the optical film layers 16 are both disposed at one side of the light guide plate 14 away from the back plate body 103; the at least one optical film layer 16 is in contact with or separated from the orthographic projection of the reflective member 18 on the back sheet body 103.

In the embodiment of the present application, as shown in fig. 4 and fig. 5, an orthographic projection of at least one optical film layer 16 on the back panel body 103 is in contact with or separated from an orthographic projection of the reflective member 18 on the back panel body 103, so that an overlapping portion between the optical film layer 16 and the reflective member 18 can be reduced, a probability of wrinkles occurring in the optical film layer 16 can be further reduced, and uniformity of light emitted by the light bar 17 after passing through can be ensured.

In one embodiment of the present application, the orthographic projection of the at least one optical film layer 16 on the backplane body 103 is within the orthographic projection of the second polarizer 204 on the backplane body 103.

In the embodiment of the present application, as shown in fig. 4 and fig. 5, the orthographic projection of at least one optical film layer 16 on the rear panel body 103 is located in the orthographic projection of the second polarizer 204 on the rear panel body 103, so that the overlapping portion between the optical film layer 16 and the reflector 18 can also be reduced, the probability of the optical film layer 16 being wrinkled can be further reduced, and the uniformity of the light emitted by the light bar 17 after passing through can be ensured.

In one embodiment of the present application, the plurality of optical film layers 16 includes a first optical film layer 161 and a second optical film layer 162 that are sequentially stacked, the first optical film layer 161 being disposed on a side of the second optical film layer 162 away from the back plate body 103; the orthographic projection of the first optical film layer 161 on the back panel body 103 is separated from the orthographic projection of the reflector 18 on the back panel body 103, and is positioned in the orthographic projection of the second polarizer 204 on the back panel body 103; the second optical film layer 162 covers an orthogonal projection of the back sheet body 103, covering a part of the reflective member 18 in the orthogonal projection of the back sheet body 103.

In the embodiment of the present application, as shown in fig. 4, the plurality of optical film layers 16 includes a first optical film layer 161, a second optical film layer 162, and a third optical film layer 163 stacked in this order, the first optical film layer 161 is disposed on a side of the second optical film layer 162 away from the back plate body 103, and the third optical film layer 163 is disposed on a side of the second optical film layer 162 close to the back plate body 103. Alternatively, the first optical film layer 161 may be a prism or a diffusion sheet, the second optical film layer 162 may be a prism, and the third optical film layer 163 may be a diffusion sheet.

In the embodiment of the present application, as shown in fig. 4, the orthographic projection of the first optical film layer 161 on the back panel body 103 is separated from the orthographic projection of the reflector 18 on the back panel body 103, and is located in the orthographic projection of the second polarizer 204 on the back panel body 103; the orthographic projection of the second optical film layer 162 on the back panel body 103 covers part of the orthographic projection of the reflector 18 on the back panel body 103, and the orthographic projection of the second optical film layer 162 and the orthographic projection of the third optical film layer 163 on the back panel body 103 are overlapped with the orthographic projection of the reflector 18 on the back panel body 103.

That is, by shortening the distance between the outer edge of the first optical film layer 161 and the outer edge of the display region 401, the second optical film layer 162 and the third optical film layer 163 can be prevented from being squeezed by the second polarizer 204 and the backplane body 103, and the first optical film layer 161, the second optical film layer 162 and the third optical film layer 163 can be prevented from being wrinkled, so that the uniformity of light emitted by the light bar 17 after passing through can be guaranteed.

Optionally, the distance between the outer edge of the first optical film layer 161 and the adjacent outer edge of the display area 401 is 0.9-3 mm in the third direction.

In one embodiment of the present application, the plurality of optical film layers 16 includes a first optical film layer 161 and a second optical film layer 162 that are sequentially stacked, the first optical film layer 161 being disposed on a side of the second optical film layer 162 away from the back plate body 103; the orthographic projections of the first optical film layer 161 and the second optical film layer 162 on the back panel body 103 are separated from the orthographic projection of the reflector 18 on the back panel body 103, and are located in the orthographic projection of the second polarizer 204 on the back panel body 103.

In the embodiment of the present application, as shown in fig. 5, the plurality of optical film layers 16 includes a first optical film layer 161, a second optical film layer 162, and a third optical film layer 163, which are stacked in this order.

In the embodiment of the present application, in the case that the thickness of the third optical film layer 163 is larger, as shown in fig. 5, the orthographic projections of the first optical film layer 161 and the second optical film layer 162 on the back panel body 103 are separated from the orthographic projection of the reflector 18 on the back panel body 103, and are located in the orthographic projection of the second polarizer 204 on the back panel body 103. There is an overlap between the orthographic projection of the third optical film layer 163 on the back sheet body 103 and the orthographic projection of the reflective member 18 on the back sheet body 103.

That is, by shortening the distance between the outer edges of the first optical film layer 161 and the second optical film layer 162 and the outer edge of the display area 401, the third optical film layer 163 can be prevented from being squeezed by the second polarizer 204 and the back panel body 103, and the first optical film layer 161, the second optical film layer 162 and the third optical film layer 163 can be prevented from being wrinkled, so that the uniformity of the light bar 17 after the light passes through can be ensured.

Alternatively, the distance between the outer edges of the first and second optical film layers 161 and 162 and the adjacent outer edge of the display region 401 is 0.9 to 3 mm in the third direction.

In one embodiment of the present application, the display device further includes: a backlight assembly disposed between the rear plate 10 and the display panel 200; the backlight assembly comprises at least one optical film layer 16, and the rubber frame assembly 11 comprises a rubber frame 101 arranged on one side of the back plate 10; along the second direction, two sides of the optical film material layer 16 are provided with the hanging lug parts 1611, two sides of the rubber frame 101 are provided with the grooves 1011, and the hanging lug parts 1611 are accommodated in the grooves 1011; the second direction is parallel to the back plate 10.

In the embodiment of the present application, as shown in fig. 3, the plurality of optical film layers 16 includes a first optical film layer 161, a second optical film layer 162, and a third optical film layer 163 that are stacked in sequence, a plurality of suspension loops 1611 are disposed on both sides of the first optical film layer 161, the second optical film layer 162, and the third optical film layer 163 along the second direction, and correspondingly, grooves 1011 are disposed on both sides of the rubber frame 101, and the suspension loops 1611 are accommodated in the grooves 1011, so that the grooves 1011 perform a limiting and guiding function, when the first optical film layer 161, the second optical film layer 162, and/or the third optical film layer 163 is heated to expand, the optical film layer 16 may expand along both ends parallel to the third direction, and the optical film layer 16 can be prevented from expanding along both sides parallel to the second direction. Similarly, when the first optical film layer 161, the second optical film layer 162, and/or the third optical film layer 163 is expanded and contracted by cooling, the optical film layer 16 is contracted uniformly from both ends in the direction parallel to the third direction toward the center.

In one embodiment of the present application, the distance between the first surface of the optical film layer 16, which is closest to the second polarizer 204, among the plurality of optical film layers 16, and the second surface of the second polarizer 204 is 0.05 to 0.15 mm in the first direction; the first surface of the optical film layer 16 is the surface of the optical film layer 16 far away from the back plate 10, and the second surface of the second polarizer 204 is the surface of the second polarizer 204 near the back plate 10.

In the embodiment of the present application, as shown in fig. 1, 4 and 5, a gap is provided between the upper surface of the first optical film layer 161 and the lower surface of the second polarizer 204 along the first direction, and optionally, the size of the gap is 0.05-0.15 mm. Therefore, in the process that the display device is impacted by external force, after the touch panel 300 extrudes the display panel 200, the display panel 200 has a certain deformation space, so that stress can be released to a certain extent, the problem that the display panel 200 is broken due to stress concentration can be prevented, the influence of the external force impact on the display panel 200 can be reduced, the probability of damage to the display panel 200 can be reduced, and the service life of the display device can be prolonged.

In the embodiment of the present application, as shown in fig. 4 and 5, the display device further includes a flexible circuit board 205 electrically connected to the array substrate 203.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

1. in the display device provided in the embodiment of the application, along the first direction perpendicular to the backplane 10, the body 111 of the rubber frame assembly 11 protrudes out of the display panel 200, and the orthographic projections of the display panel 200 and the rubber frame assembly 11 on the backplane 10 are both covered by the orthographic projection of the first substrate 301 in the touch panel 300 on the backplane 10, so that in the process that the display device is impacted by external force, the touch panel 300 located at the outermost side will first squeeze the rubber frame assembly 11, in this process, the rubber frame assembly 11 plays a role in buffering, thereby being capable of reducing the squeezing of the touch panel 300 on the display panel 200, further being capable of reducing the influence of the impact of the external force on the display panel 200, being capable of reducing the probability of breakage of the display panel 200, and being capable of prolonging the service life of the display device.

2. In the display device provided by the embodiment of the application, a gap is formed between the body part 111 and the first substrate base plate 301, and by providing the gap, the first substrate base plate 301, the rubber frame assembly 11 and the back plate 10 can be prevented from enclosing to form a sealed space. Therefore, in the process of attaching the display panel 200 and the touch panel 300, especially in the process of vacuum defoaming and curing of the OCAs for bonding the display panel 200 and the touch panel 300, bubbles released by the OCAs can be discharged through the gap, and the bonding effect of the display panel 200 and the touch panel 300 can be prevented from being influenced by the expansion of the bubbles. Meanwhile, the bubbles can be prevented from diffusing to the display area 401 of the display device, so that the display effect of the display device can be guaranteed.

3. In the display device provided by the embodiment of the application, the orthographic projection of the reflector 13 on the back panel body 103 is in contact with or separated from the orthographic projection of the second polarizer 204 on the back panel body 103, so that the optical film layer 16 can be avoided or avoided being extruded by the second polarizer 204 and the back panel body 103, the optical film layer 16 can be avoided from wrinkling, the uniformity of the light passing through can be ensured to be emitted by the light bar 17, and the display effect of the display device can be ensured.

Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, the steps, measures, and schemes in the various operations, methods, and flows disclosed in the present application in the prior art can also be alternated, modified, rearranged, decomposed, combined, or deleted.

In the description of the present application, the directions or positional relationships indicated by the words "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are for convenience of description or simplicity of describing the embodiments of the present application based on the exemplary directions or positional relationships shown in the drawings, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present application.

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 application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a part of the embodiments of the present application, and it should be noted that it is within the scope of the embodiments of the present application that other similar implementation means based on the technical idea of the present application can be adopted by those skilled in the art without departing from the technical idea of the present application.

Claims (13)

1. A display device, comprising:

a back plate;

the rubber frame assembly is at least partially arranged on one side of the back plate and comprises a rubber frame, the rubber frame comprises a body part and a step part, and the step part extends inwards along the direction parallel to the back plate;

the display panel is arranged on one side of the back plate and is connected with the step part;

the touch panel is arranged on one side of the display panel, which is far away from the backboard; the touch panel comprises a first substrate base plate, the orthographic projection of the first substrate base plate on the backboard covers the display panel and the orthographic projection of the rubber frame assembly on the backboard; the body portion protrudes from the display panel along a first direction perpendicular to the back plate.

2. The display device according to claim 1, wherein the adhesive frame assembly comprises a first adhesive tape wrapping a portion of the body portion;

along the first direction, the distance between the first surface of the first adhesive tape and the first surface of the display panel is 0.1-0.55 mm; the first surface of the first adhesive tape is a surface of the first adhesive tape away from the main body part, and the first surface of the display panel is a surface of the display panel away from the back plate.

3. The display device according to claim 1, wherein the touch panel further comprises a protective cover plate disposed on a side of the first substrate base plate away from the back plate;

the bending strength of the protective cover plate and the first substrate base plate is between 300 and 600 MPa.

4. The display device according to claim 1, wherein a distance between a first surface of the first tape and a second surface of the first substrate base plate in the frame assembly is 0.05 to 0.4 mm in the first direction; the second surface of the first substrate base plate is the surface of the first substrate base plate close to the back plate.

5. The display device according to claim 1, wherein the touch panel further comprises a first adhesive layer provided between the first substrate base plate and the first surface of the display panel;

the orthographic projection of the first bonding layer on the back plate is in contact with or separated from the orthographic projection of the rubber frame assembly on the back plate.

6. The display device according to claim 5, wherein the display panel comprises a first polarizer disposed on a side of the first adhesive layer away from the first substrate base plate; the orthographic projection of the first bonding layer on the back plate is overlapped with the orthographic projection of the first polaroid on the back plate.

7. The display device according to claim 1, further comprising: a backlight assembly disposed between the back plate and the display panel; the back plate comprises a back plate body and a bending part arranged at one end of the back plate body;

the backlight component comprises a reflecting piece which is arranged in the bending part and faces the back plate body; the display panel comprises a second polaroid, the second polaroid is arranged on one side, far away from the touch panel, of the first polaroid of the display panel, and the reflector is in the orthographic projection of the back plate body and is in contact with or separated from the orthographic projection of the back plate body by the second polaroid.

8. The display device according to claim 7, wherein, in the third direction, a distance between an inner edge of the reflector and an edge adjacent to a display area of the display device is 0.8-1.5 mm; and/or the distance between the edge of the second polaroid and the adjacent edge of the display area is 0.75-2.5 mm along a third direction, and the third direction is parallel to the back plate body and is vertical to the second direction.

9. The display device according to claim 7, wherein the backlight assembly further comprises a light guide plate and a plurality of optical film layers, the light guide plate is disposed on one side of the back plate body, and the reflector and the optical film layers are both disposed on one side of the light guide plate away from the back plate body;

at least one optical film layer is in contact with or separated from the orthographic projection of the reflecting piece on the back plate body.

10. The display device of claim 9, wherein an orthographic projection of the at least one layer of optical film on the backplane body is within an orthographic projection of the second polarizer on the backplane body.

11. The display device according to claim 9, wherein the plurality of optical film layers includes a first optical film layer and a second optical film layer stacked in this order, the first optical film layer being disposed on a side of the second optical film layer away from the back plate body;

the orthographic projection of the first optical film layer on the back plate body is separated from the orthographic projection of the reflecting piece on the back plate body and is positioned in the orthographic projection of the second polaroid on the back plate body; the second optical film layer covers part of the orthographic projection of the reflecting piece on the back plate body.

12. The display device according to claim 9, wherein the plurality of optical film layers includes a first optical film layer and a second optical film layer stacked in this order, the first optical film layer being disposed on a side of the second optical film layer away from the back plate body;

the orthographic projections of the first optical film layer and the second optical film layer on the back plate body are separated from the orthographic projection of the reflecting piece on the back plate body, and the first optical film layer and the second optical film layer are located in the orthographic projection of the second polaroid on the back plate body.

13. The display device according to claim 1, further comprising: the backlight assembly is arranged between the back plate and the display panel;

the backlight assembly comprises at least one optical film layer, the rubber frame assembly comprises a rubber frame, and the rubber frame is arranged on one side of the back plate; along a second direction, two sides of the optical film material layer are provided with lug parts, two sides of the rubber frame are provided with grooves, and the lug parts are accommodated in the grooves; the second direction is parallel to the back plate.

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