WO2019206113A1

WO2019206113A1 - Display device

Info

Publication number: WO2019206113A1
Application number: PCT/CN2019/083805
Authority: WO
Inventors: 田青
Original assignee: 京东方科技集团股份有限公司; 北京京东方茶谷电子有限公司
Priority date: 2018-04-28
Filing date: 2019-04-23
Publication date: 2019-10-31
Also published as: CN209070263U

Abstract

A display device, comprising a housing (1) and a display panel (2), wherein a back side surface of the display panel (2) and a front side surface of the housing (1) are connected by means of a connection layer therebetween. Since the display device does not have an outer frame, the thickness of the display device may be reduced at least in terms of the thickness of a front wall of the outer frame, such that the display device is thinner overall, which is beneficial to the lightening and thinning of the display device.

Description

Display device

Related application

The present application claims priority to Chinese Patent Application No. 201820625146.9, filed on Apr. 28, 2008, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present disclosure relates to the technical field of display device structure design, and in particular, to a display device.

Background technique

With the development of electronic technology, display devices such as computer monitors, mobile phones, liquid crystal televisions, and tablet computers have been widely used in various industries. Nowadays, users are increasingly demanding the appearance of display devices, and the screen ratio of display devices is one of the important indicators. The screen ratio refers to the relative ratio of the area of the screen (ie, the display area of the display panel) and the front side of the display device, and the display device with a relatively large screen can make it easier for the user to obtain a better visual experience.

Summary of the invention

An embodiment of the present disclosure provides a display device including a housing and a display panel, wherein a rear side surface of the display panel and a front side surface of the housing are connected by a connection layer therebetween.

According to some exemplary embodiments of the present disclosure, the connection layer includes at least one of an adhesive layer and a solder layer.

According to some exemplary embodiments of the present disclosure, the adhesive layer includes a foam layer.

According to some exemplary embodiments of the present disclosure, the housing includes a frame, and the display device further includes a backlight module, and the backlight module is disposed in the frame. The bezel includes connected side walls and a front wall for shielding the backlight module, and a front side surface of the front wall is a front side surface of the outer casing.

According to some exemplary embodiments of the present disclosure, the backlight module includes a back plate and a light guide plate assembly, and the back plate is fixedly coupled to the bezel.

According to some exemplary embodiments of the present disclosure, the light guide plate assembly is engaged between the back plate and the front wall.

According to some exemplary embodiments of the present disclosure, the light guide plate assembly is bonded to the backing plate.

According to some exemplary embodiments of the present disclosure, the backing plate is a tempered glass backing plate.

According to some exemplary embodiments of the present disclosure, the tempered glass back sheet has an occlusion pattern.

According to some exemplary embodiments of the present disclosure, the bezel further includes a rear wall connected to the side wall, the rear wall being spaced apart from and opposite to the front wall, and the back panel and the rear wall The front side surface is fixedly connected.

According to some exemplary embodiments of the present disclosure, the backing plate is bonded to a front side surface of the rear wall.

According to some exemplary embodiments of the present disclosure, the bezel includes two first sub-frames that are spaced apart along the first direction and two second sub-frames that are spaced apart along the second direction, each of the first sub-frames The sidewall and the front wall are each included with each of the second sub-frames, and the first direction is perpendicular to the second direction.

According to some exemplary embodiments of the present disclosure, the first sub-frame is fixedly connected to the adjacent second sub-frame by screws.

According to some exemplary embodiments of the present disclosure, the sidewall of the first sub-frame is fixedly connected to the sidewall of the adjacent second sub-frame by screws.

According to some exemplary embodiments of the present disclosure, a front wall of the first sub-frame and a front wall of the adjacent second sub-frame are fixedly connected by screws.

According to some exemplary embodiments of the present disclosure, the two first sub-frames and the two second sub-frames are integrated.

According to some exemplary embodiments of the present disclosure, the light guide plate assembly includes a reflection sheet, a light guide plate, and an optical film in order from the rear to the front in the thickness direction of the display panel.

According to some exemplary embodiments of the present disclosure, the reflection sheet includes a reflection sheet body and a protective film layer covering the front side surface of the reflection sheet body.

According to some exemplary embodiments of the present disclosure, the bezel is a metal frame.

According to some exemplary embodiments of the present disclosure, the metal frame is an aluminum alloy frame.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

Figure 1 is a side cross-sectional view of a typical display device;

2 is a side cross-sectional view of the display device in the embodiment of the present disclosure;

Figure 3 is a front elevational view of the bezel of the embodiment of the present disclosure;

Figure 4 is a partial enlarged view of the portion D in Figure 3.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. It is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

In the description of the present disclosure, it is to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", The orientation or positional relationship of the "top", "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying The device or component referred to must have a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the disclosure.

In the description of the present disclosure, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connections, or integral connections; the specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present disclosure, "a plurality of" means two or more unless otherwise stated.

A typical display device, as shown in FIG. 1, includes a housing 01, a backlight module 02, and a display panel 03. Specifically, the outer casing 01 includes an outer frame 011. The backlight module 02 includes a light guide plate assembly 021, a light source 022, a plastic frame 023, and a back plate 024. The light guide plate assembly 021 is disposed outside the plastic frame 023. The display panel 03 is engaged between the plastic frame 023 and the front wall 0111 of the outer frame 011.

In such a display device, since the display panel 03 is engaged between the plastic frame 023 and the front wall 0111 of the outer frame 011, the front wall 0111 of the outer frame 011 needs to be sufficiently dimensioned for use with the display panel 03. Contact, thereby limiting the display panel 03. However, such an arrangement results in a larger size of the outer casing 01 at the peripheral edge of the display panel 03, that is, the width of the front wall 0111 is wider, resulting in a lower screen occupancy of the display device, which is disadvantageous for the user to obtain a better visual experience.

In view of this, as shown in FIG. 2, an embodiment of the present disclosure provides a display device including a casing 1 and a display panel 2, a rear side surface of the display panel 2 and a front side surface of the casing 1 (for example, as shown in FIG. 2) The faces M) are connected by a connection layer d therebetween. For example, the rear side surface of the display panel 2 and the front side surface of the outer casing 1 may be bonded by an adhesive layer therebetween, or may be welded by a solder layer therebetween or the like.

It should be noted here that the display panel 2 refers to an open cell that does not include a backlight module.

Compared with the display device shown in FIG. 1, in the display device provided by the embodiment of the present disclosure, since the rear side surface of the display panel 2 and the front side surface of the outer casing 1 are connected by a connection layer therebetween, and as As a result, the display panel 2 can be relatively fixed to the outer casing 1, and therefore, it is not necessary to provide an outer frame on the outer side of the display panel 2 to be engaged with the display panel 2 to achieve fixation of the display panel 2. Since the display device eliminates the outer frame, the size of the outer casing 1 around the display panel 2 can be greatly reduced (at least the width of the outer frame of the display device in FIG. 1 for snapping the display panel and the outer frame is reduced). The thickness of the side walls, such as the dimensions a and b) shown in FIG. 1, can increase the screen ratio of the display device, which is advantageous for the user to obtain a better visual experience. In addition, since the display device eliminates the outer frame, the display device can reduce the thickness of at least one outer frame front wall (for example, the size c shown in FIG. 1) in thickness, thereby making the display device thin overall. It is advantageous for the slimness of the display device.

As used herein, in the display device provided by the embodiment of the present disclosure, the orientation word "front" refers to the direction along the thickness direction of the display panel 2 and points to the side for viewing the display surface of the display panel 2, and The orientation word "rear" refers to a direction along the thickness direction of the display panel 2 and away from the side for viewing the display surface of the display panel 2. Therefore, the front side surface of the outer casing 1 specifically refers to the surface of the outer casing 1 on the observation side, such as the M surface shown in FIG.

Further, as shown in FIG. 2, the outer casing 1 includes a bezel 11. The display device further includes a backlight module 3, and the backlight module 3 is disposed in the frame 11. The bezel 11 includes a side wall 111 and a front wall 112, the side wall 111 is a side wall for shielding the backlight module 3 from light leakage, and the front side surface of the front wall 112 is the front side surface M of the outer casing 1, and The side wall 111 and the front wall 112 may be integrally formed. The backlight module 3 includes a back plate 33 and a light guide plate assembly 31, wherein the back plate 33 is fixedly connected to the bezel 11.

As used herein, the sidewall of the backlight module 3 refers to the surface of the backlight module 3 opposite to the sidewall 111 of the bezel 11. For example, as shown in FIG. 2, the sidewall of the backlight module 3 is a guide light assembly 31. And a side of the back plate 33 opposite to the side wall 111 of the bezel 11.

In the structure of the above display device, the manner of fixing the light guide plate assembly 31 is not unique. For example, as shown in FIG. 2, the light guide plate assembly 31 is engaged between the back plate 33 and the front wall 112. Alternatively, the light guide plate assembly 31 may be bonded to the back plate 33, that is, the components in the light guide plate assembly 31 are bonded together and then integrally bonded to the back plate 33. Compared with the embodiment in which the light guide plate assembly 31 is adhered to the back plate 33, the embodiment in which the light guide plate assembly 31 is engaged between the back plate 33 and the front wall 112 makes the fixing manner of the light guide plate assembly 31 simpler, and the light guide plate assembly 31 does not need to be bonded to the back plate 33 and the various components of the light guide plate assembly 31 need not be bonded together, which greatly facilitates the replacement and disassembly of the light guide plate assembly 31.

As shown in FIG. 2, the backlight module 3 further includes a light source 32, and the light source 32 is fixedly connected to the frame 11. The light source 32 may be a light bar and may be fixed to the side wall 111 on one side of the bezel 11 by bonding.

The type of the back plate 33 is also not unique. For example, the back plate 33 may be an electrolyzed plate (Electrolytically Galvanized Steel Sheets, English abbreviation: EGI). Alternatively, the backing plate 33 may be a tempered glass backing. Compared with the electrogalvanized steel sheet, since the electrogalvanized steel sheet is likely to cause local unevenness around the stamping portion in the process of punching holes and the like, the flatness of the tempered glass back sheet is higher, and the display device can be prevented from being partially uneven. A problem with white spots appearing during the display.

It should be noted that if the back plate 33 has local unevenness, for example, the back plate 33 has a protrusion at a certain position, the protrusion on the back plate 33 is easy to be used in the assembly process of the light guide plate assembly 31 and the back plate 33. The meshes on the light guide plate assembly 31 are relatively frictionally damaged, thereby damaging the dots, thereby affecting the scattering of light in the light guide plate assembly 31, resulting in uneven dispersion of light in the light guide plate assembly 31, so that the light is excessive in a certain portion of the light guide plate assembly 31. Concentration, which causes white spots, is not conducive to improving the display quality of the display device.

In contrast, the tempered glass back plate can be made of black tempered glass, so that the tempered glass back plate can visually block the components inside the frame 11 so that the tempered glass back plate can be used as the appearance surface of the display device without being tempered. The rear side of the glass back plate is added to the rear case, so that the structure can be simplified, the number of parts can be reduced, and the overall thickness of the display device can be reduced.

In addition to the black tempered glass, the tempered glass back plate 33 may also be provided with an occlusion pattern or mark on the tempered glass back plate 33 to achieve further visual blocking of the components inside the frame 11.

The structure of the bezel 11 is also not unique. For example, the bezel 11 may have the following structure: as shown in FIG. 2, the bezel 11 further includes a rear wall 113 connected to the side wall 111, and the rear wall 113 is spaced apart from and opposite to the front wall 112, and the back The plate 33 is fixedly coupled to the front side surface of the rear wall 113. Alternatively, the bezel 11 may also be of the following structure: the bezel 11 includes only the side wall 111 and the front wall 112, and the back plate 33 is fixedly coupled to the side wall 111. Compared to the embodiment in which the frame 11 includes only the side wall 111 and the front wall 112, in the embodiment in which the frame 11 includes the side wall 111, the front wall 112 and the rear wall 113, the back plate 33 may be fixedly coupled to the rear wall 113 such that the back The contact area between the plate 33 and the bezel 11 is large, and the fixing is more firm.

The manner in which the back plate 33 is fixedly coupled to the front side surface of the rear wall 113 is also not unique. For example, the back plate 33 may be bonded to the front side surface of the rear wall 113; alternatively, the back plate 33 may also pass through the screw and the rear wall. 113 fixed connection. Compared with the manner in which the screws are fixedly connected, the back plate 33 is bonded to the front side surface of the rear wall 113 in a simple, convenient, and time-saving manner, and the process of tightening the screws is not required, and the appearance is relatively beautiful, which is advantageous for increasing the display device. Visual effects enhance the user's visual experience when using the display device.

In the display device provided by the embodiment of the present disclosure, the structure of the bezel 11 is not unique. For example, the bezel 11 may have the following structure. As shown in FIG. 3, the bezel 11 includes a first direction (for example, the X direction shown in the drawing). Two first sub-frames 114 disposed apart from each other and two second sub-frames 115 spaced apart in a second direction (eg, the Y direction shown in the drawing), each of the first sub-frames 114 and each of the second sub-frames The bezels 115 each include a side wall 111 and a front wall 112, and the first direction is perpendicular to the second direction. As shown in FIG. 4, in an exemplary embodiment, the first sub-frame 114 and the adjacent second sub-frame 115 may be fixedly connected by screws (for example, as indicated by reference numeral m in FIG. 4). When assembling, three sub-frames can be assembled first, then the back plate 33 and the light guide plate assembly 31 are assembled with the assembled three sub-frames, and finally the sub-frames on which the light source 32 is mounted are assembled with the other three sub-frames. Alternatively, the bezel 11 may also be of a structure in which two first sub-frames 114 are integrally formed with two second sub-frames 115. During the assembly of the back sheet 33 and the light guide plate assembly 31, the size of the back sheet 33 and the light guide plate assembly 31 can be controlled and then loaded into the bezel 11 by oblique insertion. Compared with the embodiment in which the two first sub-frames 114 and the two second sub-frames 115 are integrally formed, the two first sub-frames 114 and the two second sub-frames 115 are separated (for example, as shown in FIG. 3 ). The assembly and disassembly of the back plate 33 and the light guide plate assembly 31 can be more convenient, and the phenomenon that the back plate 33 and the light guide plate assembly 31 are difficult to be loaded into the bezel 11 when the size is slightly larger can be effectively avoided.

Between the adjacent first sub-frame 114 and the second sub-frame 115, the front wall 112 of the first sub-frame 114 and the front wall 112 of the second sub-frame 115 may be fixedly connected by screws, or the first sub- The rear wall 113 of the frame 114 and the rear wall 113 of the second sub-frame 115 are fixedly connected by screws, and the front wall 112 of the first sub-frame 114 and the front wall 112 of the second sub-frame 115 and the first sub-frame 114 may also be The rear wall 113 and the rear wall 113 of the second sub-frame 115 are fixedly connected by screws, and are not specifically limited herein.

In an exemplary embodiment, as shown in FIG. 2, the connection layer between the rear side surface of the display panel 2 and the front side surface of the outer casing 1 may be a foam rubber that aligns the display panel 2 with the outer casing 1. Bonding. Since the foamed rubber has the advantages of strong adhesive force, good holding force, temperature resistance, water resistance, and the like, the display panel 2 and the outer casing 1 can be securely fixed. In addition, when it is necessary to disassemble, the foam rubber can also facilitate the removal of the display panel 2 from the outer casing 1, so that the replacement of the display panel 2 can be conveniently realized. Specifically, the foam rubber may be a double-sided foam tape.

Further, as shown in FIG. 2, the backlight module 3 is disposed in the outer casing 1 (for example, the frame 11), the backlight module 3 includes the light guide plate assembly 31, and in the thickness direction of the display panel 2, the light guide plate assembly 31 is rearward. The front portion includes a reflection sheet 311, a light guide plate 312, and an optical film 313 in this order.

The light guide plate 312 may be a polymethyl methacrylate (PMMA, Chinese definition: polymethyl methacrylate) light guide plate, or may be a MS (copolymer of methyl methacrylate and styrene) light guide plate.

In order to prevent damage to the light guide plate 312 and the reflection sheet 311 by impurities (such as fine particles or the like) which are entered during the assembly of the reflection sheet 311 and the light guide plate 312, the reflection sheet 311 may have the following structure: the reflection sheet 311 includes the reflection sheet body, and the reflection The front side surface of the sheet body is covered with a protective film layer. Thus, when the reflective sheet 311 and the light guide plate 312 are assembled and impurities such as fine particles enter between the two, impurities enter into the protective film layer, thereby reducing damage caused by contact friction between the impurities and the reflective sheet 311 or the light guide plate 312. Therefore, the optical performance of the reflective sheet 311 and the light guide plate 312 is not affected, thereby ensuring that the display quality of the display device is not affected. In an exemplary embodiment, the above protective film layer may be a coated particle layer.

In the display device provided by the embodiment of the present disclosure, the constituent material of the bezel 11 is not unique, and the frame 11 may be a metal frame. Alternatively, the bezel 11 can also be a plastic frame. Compared with the plastic frame, the strength and hardness of the metal frame are high, so that the frame 11 is less prone to large deformation. In addition, the metal frame has good thermal conductivity and can increase the heat dissipation capability of the frame 11.

When the bezel 11 is a metal frame, the constituent material of the bezel 11 is not unique. For example, the bezel 11 may be an iron frame. Alternatively, the bezel 11 may also be an aluminum alloy frame. Compared with the iron frame, the aluminum alloy frame is lighter in weight, which is advantageous for reducing the weight of the display device. At the same time, the aluminum alloy frame has better toughness and better heat dissipation.

The display device provided by the embodiment of the present disclosure may be a curved display device (ie, a back plate 33, in addition to a plate-shaped display device (ie, the back plate 33, the light guide plate 312, the display panel 2, and the like are plate-like structures). The display panel 2 and the like are curved structures).

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure, and should cover It is within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosure should be determined by the scope of the claims.

Claims

A display device includes a housing and a display panel, wherein a rear side surface of the display panel and a front side surface of the housing are connected by a connection layer therebetween.
The display device of claim 1, wherein the connection layer comprises at least one of an adhesive layer and a solder layer.
The display device according to claim 2, wherein the adhesive layer comprises a foam layer.
The display device according to claim 1, wherein

The outer casing includes a frame;

The display device further includes a backlight module, the backlight module being disposed in the frame;

The bezel includes connected side walls and a front wall for shielding the backlight module, and a front side surface of the front wall is a front side surface of the outer casing.
The display device according to claim 4, wherein the backlight module comprises a back plate and a light guide plate assembly, and the back plate is fixedly connected to the frame.
The display device according to claim 5, wherein the light guide plate assembly is engaged between the back plate and the front wall.
The display device according to claim 5, wherein the light guide plate assembly is bonded to the back plate.
The display device according to claim 5, wherein the back sheet is a tempered glass back sheet.
The display device of claim 8, wherein the tempered glass back sheet has an occlusion pattern.
The display device according to claim 5, wherein the frame further comprises a rear wall connected to the side wall, the rear wall being spaced apart from and opposite to the front wall, and the back plate and the back The front side surface of the rear wall is fixedly connected.
The display device according to claim 10, wherein the backing plate is bonded to a front side surface of the rear wall.
The display device according to claim 4, wherein the bezel includes two first sub-frames spaced apart in a first direction and two second sub-frames spaced apart in a second direction, each of the first The sub-frame and each of the second sub-frames include the side wall and the front wall, and the first direction is perpendicular to the second direction.
The display device according to claim 12, wherein the first sub-frame is fixedly connected to the adjacent second sub-frame by screws.
The display device according to claim 13, wherein the side wall of the first sub-frame is fixedly connected to the side wall of the adjacent second sub-frame by screws.
The display device according to claim 13, wherein a front wall of the first sub-frame and a front wall of the adjacent second sub-frame are fixedly connected by screws.
The display device of claim 12, wherein the two first sub-frames and the two second sub-frames are integral.
The display device according to claim 5, wherein the light guide plate assembly includes a reflection sheet, a light guide plate, and an optical film in order from the rear to the front in the thickness direction of the display panel.
The display device according to claim 17, wherein the reflection sheet comprises a reflection sheet body and a protective film layer covering the front side surface of the reflection sheet body.
The display device according to claim 4, wherein the bezel is a metal frame.
The display device according to claim 19, wherein the metal frame is an aluminum alloy frame.