Display device

Abstract

The invention discloses a display device. The display device comprises a cover plate; the outer frame wraps the outer side of the cover plate; the back plate comprises a first part, and the first part and the cover plate are arranged in a spaced mode in the preset direction; the fixing piece is connected between the cover plate and the first part, the fixing piece is connected with the outer frame in a clamping mode, and the direction of the clamping force between the fixing piece and the outer frame intersects with the preset direction. The display device provided by the invention has the advantage that the outer frame is convenient to disassemble, assemble and replace.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to a display device. Background Art

[0002] In the display field, infrared touch controls occupy a large part of the touch market with its mature technology, accurate touch accuracy and low cost advantages. The principle of infrared touch controls is to analyze the touch position by blocking the infrared rays emitted by the infrared frame.

[0003] Among them, the infrared touch display screen uses a dense infrared matrix in the X and Y directions to detect and locate the user's touch position. The infrared touch display screen includes a glass plate, a frame, a carrier plate, a glass block and an infrared module. The frame is arranged on the outside of the glass plate, and the infrared module is accommodated in the inner cavity of the frame. The lower end of the frame is lower than the lower end surface of the glass plate and is fixed to the carrier plate. The glass block is arranged in the accommodation space formed by the frame, the carrier plate and the glass plate and supports the glass plate.

[0004] However, the connection method of the frame, the supporting plate and the glass pressing block in the related art is relatively complicated, which is not convenient for the rapid replacement of the frame. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a display device that can solve the problem that the connection method between the frame, the carrier plate and the glass pressing block is complicated and inconvenient for rapid replacement of the frame.

[0006] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application provides a display device, comprising: a cover plate; an outer frame wrapped around the outer side of the cover plate; a back plate comprising a first part, the first part and the cover plate are spaced apart along a preset direction; a fixing member connected between the cover plate and the first part, and the fixing member is snap-connected to the outer frame, and the direction of the snap-connecting force between the fixing member and the outer frame intersects with the preset direction.

[0007] Optionally, a direction of the engagement force between the fixing member and the outer frame is perpendicular to the preset direction.

[0008] Optionally, the outer frame has a first end and a second end arranged opposite to each other along the preset direction, the second end of the outer frame faces the first part and is provided with a first connecting portion; the fixing member is provided with a second connecting portion arranged toward the second end of the outer frame, and the second connecting portion is concave-convex matched with the first connecting portion and is snap-connected.

[0009] Optionally, the first connecting portion is a protrusion extending along the preset direction; the second connecting portion includes a connecting groove and a buckle, the connecting groove has an inner cavity for accommodating the protrusion and a notch facing the outer frame, the buckle is elastic and is arranged on the inner groove wall of the connecting groove, and the buckle is engaged and connected with the protrusion;

[0010] Or, the first connecting portion includes a protrusion and a buckle, the protrusion extends along the preset direction, the buckle is elastic and is arranged on the side wall of the protrusion; the second connecting portion is a connecting groove, the connecting groove has an inner cavity for accommodating the protrusion and a notch facing the outer frame;

[0011] Or, the first connecting portion includes a connecting groove and a buckle, the connecting groove has a notch facing the fixing member, and the buckle is elastic and is arranged on the inner groove wall of the first connecting groove; the second connecting portion is a protrusion, the protrusion is passed through the connecting groove and is connected with the buckle by snapping;

[0012] Alternatively, the first connecting portion is a connecting groove having a notch facing the fixing member; the second connecting portion includes a protrusion and a buckle, the protrusion is passed through the connecting groove, the buckle is elastic and is arranged on the side wall of the protrusion, and the buckle is snap-connected with the connecting groove.

[0013] Optionally, the fixing member includes a first section and a second section, the first section is arranged on a side of the cover plate facing the first part and connected to the cover plate, the second section is connected to the first section and bent relative to the first section toward the top surface of the cover plate, and the second section is connected to the side wall of the cover plate.

[0014] Optionally, the outer frame has a top surface and a bottom surface that are relatively arranged in the preset direction; the back panel also includes a second part, the second part is connected to the first part and is bent toward the top surface of the outer frame relative to the first part, and the second part is higher than the fixing member, and the second part is wrapped around the outside of the fixing member and part of the outer frame.

[0015] Optionally, the top surface of the second part is lower than the top surface of the outer frame; the outer frame has a limiting surface, and the limiting surface abuts against the top surface of the outer frame.

[0016] Optionally, a receiving groove is formed between the fixing member and the second portion, the receiving groove has a notch facing the top surface of the outer frame, and at least a portion of the outer frame is received in an inner cavity of the receiving groove.

[0017] Optionally, the bottom surface of the outer frame has a high area and a low area arranged around the first connecting portion, and the high area is higher than the low area; the bottom surface of the accommodating groove has a high side and a low side arranged around the second connecting portion, and the high side is higher than the low side, the high side of the accommodating groove supports the high area of ​​the outer frame, and the low side of the accommodating groove supports the low area of ​​the outer frame.

[0018] Optionally, the connection between the fixing member and the first part is the orthographic projection of the bottom surface of the cover plate, and is located outside the bottom surface of the cover plate; and / or, the snap connection between the fixing member and the outer frame is the orthographic projection of the top surface of the cover plate, and is located outside the top surface of the cover plate; and / or, there is an adhesive layer between the fixing member and the cover plate; and / or, the fixing member is connected to the first part by bolts or screws; and / or, the fixing member is a metal strip.

[0019] The display device provided by the embodiment of the present application arranges the cover plate and the first part of the back plate at intervals along a preset direction, and connects the cover plate and the first part of the back plate through a fixing member, so that the force direction between the fixing member and the cover plate and the force direction between the fixing member and the first part of the back plate are both along the preset direction; the outer frame is connected to the fixing member by snapping, so as to facilitate the removal of the outer frame from the fixing member; the snapping force between the fixing member and the outer frame is made to intersect with the preset direction, so as to reduce the value of the force between the outer frame and the fixing member along the preset direction, thereby reducing the supporting effect of the outer frame on the cover plate, thereby reducing the influence of the outer frame on the cover plate, and thereby facilitating the removal, assembly and replacement of the outer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A partial longitudinal cross-sectional view of an infrared touch display screen of the related art;

[0022] Figure 2 A partial longitudinal cross-sectional view of a display device provided in an embodiment of the present application;

[0023] Figure 3 for Figure 2 A schematic diagram of the outer frame and infrared components shown;

[0024] Figure 4 for Figure 2 A schematic diagram of the back plate and the fixing member shown;

[0025] Figure 5 A schematic diagram of another first connecting portion and a second connecting portion provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram of another first connecting portion and a second connecting portion provided in an embodiment of the present application;

[0027] Figure 7 A schematic diagram of another first connecting portion and a second connecting portion provided in an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 100, cover plate;

[0030] 200, outer frame; 210, first connecting portion; 220, top surface; 231, high position area; 232, low position area; 240, limiting surface; 250, main body; 260, filter portion;

[0031] 300, back plate; 310, first part; 320, second part;

[0032] 400, fixing member; 410, first section; 420, second section; 430, third section; 440, fourth section; 450, fifth section; 460, second connecting portion;

[0033] 500, receiving groove; 510, high side; 520, low side;

[0034] 610, protrusion; 620, groove; 630, buckle;

[0035] 700, infrared components;

[0036] 810, support member; 820, diaphragm; 830, positioning member; 850, display panel;

[0037] 910, glass plate; 920, frame; 930, carrier plate; 940, glass pressing block; 950, infrared module. DETAILED DESCRIPTION

[0038] As described in the background art, the infrared touch display screen in the related art has the problem that the connection method of the frame, the carrier plate and the glass block is complicated, which makes it inconvenient to quickly replace the frame. The inventors have found that the reasons for this problem are as follows:

[0039] Figure 1 This is a partial longitudinal cross-sectional view of an infrared touch display screen of the related art. Figure 1The infrared touch display screen of the related art includes a glass plate 910, a frame 920, a carrier plate 930, a glass pressing block 940 and an infrared module 950. The frame 920 is arranged on the outside of the glass plate 910, and the infrared module 950 is accommodated in the inner cavity of the frame 920. The lower end of the frame 920 is lower than the lower end surface of the glass plate 910 and is fixed to the carrier plate 930. The glass pressing block 940 is arranged in the accommodation space formed by the frame 920, the carrier plate 930 and the glass plate 910, and the upper end of the glass pressing block 940 supports the glass plate 910.

[0040] Among them, the lower end of the glass pressing block 940, the lower end of the frame 920 and the carrier plate 930 are fixed together by bolts or screws, which will make the frame 920 connected to the glass plate 910 through the glass pressing block 940, and the frame 920 connected to the carrier plate 930, that is, the frame 920 and the glass plate 910, and the frame 920 and the carrier plate 930 are coupled. If the frame 920 is to be replaced, it is necessary to use a tool to unscrew the bolts or screws to separate the frame 920 from the glass plate 910, and the frame 920 from the carrier plate 930. This method cannot meet the customer's demand for quickly changing the color of the frame 920. In addition, the top surface of the frame 920 forms the top surface of the infrared touch display screen, and the side of the frame 920 forms the side of the infrared touch display screen, which will make the frame 920 have a large appearance control area for the infrared touch display screen, high requirements for the frame 920, and low production efficiency, which will lead to a high manufacturing cost of the frame 920. In addition, generally, the color of the top surface of the frame 920 is the same as the color of the side surface of the frame 920, which makes it difficult to meet the user's demand for different color combinations of the top surface and the side surface of the display device.

[0041] In view of the above technical problems, the inventor of the present application considers changing the connection mode between the frame 920 and the glass pressing block 940 from bolt fixing to a more convenient snap-fit ​​connection. In addition, considering that the upper end of the glass pressing block 940 is used to support the glass plate 910, the lower end of the glass pressing block 940 is connected to the back plate 300. In order to reduce the gravity of the glass plate 910 transmitted to the frame 920 through the glass pressing block 940, and further reduce the influence of the frame 920 on the glass plate 910 (or the carrier plate 930) during removal or assembly, the inventor of the present application sets the direction of the snap-fit ​​force between the frame 920 and the glass pressing block 940 to intersect or even be perpendicular to the gravity direction of the glass plate 910 (or the carrier plate 930), so as to achieve the purpose of quickly disassembling and assembling the frame 920.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0043] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0044] Figure 2 A partial longitudinal cross-sectional view of a display device provided in an embodiment of the present application. Figure 2 , the display device provided in the embodiment of the present application may include a cover plate 100, an outer frame 200 and a back plate 300. The cover plate 100 may be made of a light-transmitting material such as glass, and the light-transmitting material may be transparent or colored (such as royal blue). The cover plate 100 mainly protects and fixes the display panel 850. Specifically, the cover plate 100 is in a preset direction (such as Figure 2 The cover plate 100 may have a top surface 220 and a bottom surface that are relatively arranged in the vertical direction (in the vertical direction), and the bottom surface of the cover plate 100 may be connected to a display panel 850 parallel to the bottom surface. Optionally, the display panel 850 and the cover plate 100 may be connected by an adhesive material such as optical glue to avoid damaging the structural integrity of the display panel 850 and the cover plate 100. Furthermore, a buffer member with a certain thickness and elasticity such as a foam pad or a rubber pad may be bonded between the display panel 850 and the cover plate 100 to maintain a certain distance between the display panel 850 and the cover plate 100 to prevent the cover plate 100 from colliding with the display panel 850.

[0045] In addition, the orthographic projection of the display panel 850 on the bottom surface of the cover plate 100 along a preset direction may be located within the bottom surface of the cover plate 100, so that at least a portion of the bottom surface of the cover plate 100 is exposed, and thereby a space may be formed between the exposed bottom surface of the cover plate 100 and the outer side wall of the display panel 850, and the space may accommodate part of the fixing member 400 mentioned below.

[0046] Continue to refer Figure 2, the outer frame 200 can be wrapped around the outer side of the cover plate 100 to protect the outer edge of the cover plate 100. Specifically, the outer frame 200 can form a closed figure, and the cover plate 100 can be arranged in the closed figure. The outer frame 200 can be formed by splicing at least two frame bars. For example, when the cover plate 100 is rectangular, the outer frame 200 is a rectangular closed ring structure, which may include a top frame bar, a bottom frame bar, a left frame bar and a right frame bar. Among them, the top frame bar and the bottom frame bar are opposite and spaced, the left frame bar and the right frame bar are opposite and spaced, and the top frame bar, the left frame bar, the bottom frame bar and the right frame bar can be connected in sequence to form a rectangular outer frame 200. Two adjacent frame bars can be fixedly connected by corner connectors such as L-shaped. The frame bar can be an integral part formed by extrusion molding, casting molding, injection molding, etc.; or, the frame bar can be formed by splicing at least two small sections for processing, which is suitable for display devices of various sizes. In the above description, the cover plate 100 is rectangular and the outer frame 200 is also rectangular. Of course, the cover plate 100 may also be other regular shapes or irregular shapes such as round or oval, and the outer frame 200 may be the same shape as the cover plate 100 .

[0047] In addition, the outer frame 200 may have an inner cavity, and an electrical device may be accommodated in the inner cavity. Figure 2 and Figure 3 , exemplarily, the display device may be an intelligent interactive tablet, which may integrate multiple functions such as writing, touching, and displaying to realize human-computer interaction. An infrared component 700 may be provided in the inner cavity of the outer frame 200, and the infrared component 700 may include an infrared transmitter, an infrared receiver, and a circuit board. Among them, the circuit board may be installed in the inner cavity of the outer frame 200 by means of clamping, fixing with fasteners such as screws, bonding, etc. In addition, the processor on the circuit board and the controller on the mainboard of the display device may communicate by wire through a wire or by wireless signals such as microwaves. The infrared transmitter and the infrared receiver may be higher than the top surface 220 of the cover plate 100, and the two may form a cross infrared matrix in the touch space (parallel to the top surface 220 of the cover plate 100 and close to the top surface 220 of the cover plate 100) in a one-to-one correspondence. When the user performs a touch operation in the touch space through a touch control part (such as a finger, a stylus, etc.), the touch control part will block the two infrared rays passing through the position. Thus, the processor on the circuit board can determine the position touched by the touch control and transmit the position to the controller on the main board. The controller on the main board can receive the position and determine the user's touch operation based on the position. The above description takes the display device as a smart interactive tablet, and the inner cavity of the outer frame 200 contains the infrared component 700 as an example. Of course, the display device can also be an LED display, an OLED display, etc., and the inner cavity of the outer frame 200 can also contain other electrical components.

[0048] refer to Figure 3, the outer frame 200 may include a main body 250 and a filter part 260 having a filtering effect. The main body 250 may have an opening facing the center of the cover plate 100 and located on the top side of the cover plate 100, and the filter part 260 may be arranged at the opening and block the opening, so that the main body 250 and the filter part 260 can enclose the inner cavity of the outer frame 200. The infrared transmitter of the infrared component 700 mentioned above can transmit light to the infrared receiver arranged on the opposite side through the filter part 260 on this side, and the infrared receiver on the opposite side can receive light through the filter part 260 on one side of the branch. In other words, the filter part 260 is arranged on the light output path of the infrared pair tube (a pair of infrared receiver and infrared transmitter).

[0049] Exemplarily, the outer frame 200 includes a left frame bar and a right frame bar that are arranged opposite to each other, and a pair of infrared receivers and infrared transmitters can be arranged on the left frame bar and the right frame bar, respectively. The left frame bar can include a left body part 250 and a left filter part 260, and the right frame bar can include a right body part 250 and a right filter part 260. The light emitted by the infrared receiver in the inner cavity of the left frame bar can pass through the filter part 260 of the left frame bar and the filter part 260 of the right frame bar in sequence, and be received by the infrared transmitter in the inner cavity of the right frame bar.

[0050] refer to Figure 2 In order to protect the cover plate 100, the top surface 220 of the outer frame 200 may be higher than the top surface 220 of the cover plate 100. In order to reduce the gap between the outer frame 200 and the cover plate 100 in a direction perpendicular to the preset direction, at least part of the outer frame 200 may overlap on the top surface 220 of the cover plate 100. Optionally, the longitudinal section of the outer frame 200 may be L-shaped, and the 90-degree bend side of the L-shaped longitudinal section of the outer frame 200 may face the cover plate 100 and hook on the outside of the cover plate 100. In addition, in order to avoid blocking the display panel 850, the portion of the outer frame 200 overlapping the top surface 220 of the cover plate 100 may be located outside the outer side wall of the display panel 850. Figure 2 In the figure, the overlapping portion is shown as an example in which the overlapping portion is located on the left side of the display panel 850.

[0051] Continue to refer Figure 2 The back plate 300 may include a first portion 310 , the first portion 310 and the cover plate 100 may be spaced apart along a preset direction, and the display panel 850 may be disposed between the first portion 310 and the cover plate 100 . Figure 2In the figure, the first part 310 is arranged below the display panel 850 as an example. The backlight module can be arranged between the display panel 850 and the first part 310. Taking the liquid crystal display as an example, the backlight module can include a reflector, a backlight source and a film 820. Among them, the film 820 can be a layer of optical film 820, and can be obtained by combining multiple layers of optical film 820. In addition, in order to facilitate the installation and positioning of the backlight module, a positioning member 830 extending toward the cover plate 100 can be provided on the back plate 300, and positioning holes for the positioning member 830 to pass through are provided on the reflector and the film 820 to ensure the installation accuracy of the backlight module on the back plate 300. The positioning member 830 can be a positioning pin, so that it is easy to obtain materials and convenient to install.

[0052] In addition, in order to support the display panel 850, the display device provided in the embodiment of the present application may further include a support member 810. The support member 810 may be arranged between the display panel 850 and the diaphragm 820. Optionally, the support member 810 may be a support block with a certain thickness. The support member 810 may be made of a flexible material with a buffering effect such as foam, rubber, etc., to avoid damaging the display panel 850 and the diaphragm 820 and to prevent the display panel 850 and the diaphragm 820 from deforming and approaching each other and causing wear. Of course, the support member 810 may also include a rigid part and a flexible part, and the flexible part may be two, one of which may be sandwiched between the rigid part and the display panel 850, and the other may be sandwiched between the rigid part and the diaphragm 820. Among them, the rigid part may be made of a rigid material that is not easily deformed, such as hard plastic, and the flexible part may be made of a flexible material with a buffering effect, such as foam, rubber, etc.

[0053] Optionally, the support member 810 and the display panel 850 (or the support member 810 and the film 820) can be bonded by a glue with a certain viscosity such as optical glue, so as to have the advantages of firm connection, no need for connecting parts, convenient connection, and no damage to the internal structure of the display panel 850 (or the film 820).

[0054] Continue to refer Figure 2 In order to support the cover plate 100 , the display device provided in the embodiment of the present application may further include a fixing member 400 , which may be connected between the cover plate 100 and the first part 310 , and the weight of the cover plate 100 may be transferred to the back plate 300 through the fixing member 400 . Figure 4 for Figure 2 Schematic diagram of the back plate and fixings shown. Figure 2 and Figure 4 The fixing member 400 is moved along a preset direction (such as Figure 2 The upper and lower directions shown in the figure) may have a first end and a second end that are relatively arranged, the first end of the fixing member 400 is connected to the cover plate 100, and the second end of the fixing member 400 is connected to the first portion 310 of the back plate 300.

[0055] refer to Figure 2 and Figure 4 , Optionally, the first end of the fixing member 400 may include a first section 410, and the first section 410 may be disposed in a space formed by the bottom surface of the exposed cover plate 100 and the outer side wall of the display panel 850. As mentioned above: at least part of the outer frame 200 overlaps the top surface 220 of the cover plate 100, and the part of the outer frame 200 overlapping the top surface 220 of the cover plate 100 is located outside the outer side wall of the display panel 850. Thus, the top surface 220 and the bottom surface of the cover plate 100 that exceed the display panel 850 are respectively limited by the outer frame 200 and the first section 410, so as to limit the position of the cover plate 100 in a preset direction.

[0056] In addition, related technologies Figure 1 The side of the middle glass plate 910 is limited by the frame 920, which has the disadvantage that after the frame 920 is removed, there is no object to support the side of the glass plate 910, which may cause the position of the glass plate 910 to move. Figure 2 and Figure 4 The fixing member 400 of the display device provided in the embodiment of the present application may further include a second section 420, which may be connected to the first section 410 and may be bent relative to the first section 410 toward the top surface 220 of the cover plate 100, and the second section 420 may limit the outer wall of the cover plate 100. In this way, the operation of removing the outer frame 200 will not affect the position of the cover plate 100, which facilitates the disassembly, assembly and replacement of the outer frame 200.

[0057] Optionally, the first end of the fixing member 400 and the cover plate 100 may be connected by an adhesive material such as optical adhesive, that is, an adhesive layer may be provided between the fixing member 400 and the cover plate 100, and the adhesive layer may be made of an adhesive material such as optical adhesive. In this way, the connection is simple and firm, and the structural integrity of the cover plate 100 and the first end of the fixing member 400 is avoided from being damaged. Exemplarily, the first section 410 of the fixing member 400 and the bottom surface of the cover plate 100 may be connected by an adhesive material, and the second section 420 of the fixing member 400 and the side surface of the cover plate 100 may be connected by an adhesive material.

[0058] Furthermore, a buffer member with a certain thickness and elasticity, such as a foam pad or a rubber pad, may be bonded between the cover plate 100 and the first end of the fixing member 400, so that a certain distance is maintained between the cover plate 100 and the first end of the fixing member 400 to prevent the first end of the fixing member 400 from colliding with the cover plate 100. In addition, the fixing member 400 may be made of a material with a certain hardness and strength (such as metal materials such as aluminum, hard plastic, etc.). Figure 2 and Figure 4 The fixing member 400 is taken as an example to be a metal strip.

[0059] In order to position the diaphragm 820 by the positioning member 830 mentioned above without affecting the display panel 850, at least part of the diaphragm 820 can exceed the display panel 850, and the positioning member 830 can be matched and connected with the part of the diaphragm 820 that exceeds the display panel 850, thereby positioning the entire diaphragm 820. As can be seen from the above, both the cover plate 100 and the diaphragm 820 exceed the outer wall of the display panel 850, so that the orthographic projection of the part of the cover plate 100 that exceeds the display panel 850 on the top surface 220 of the first part 310 of the back plate 300 and the orthographic projection of the part of the diaphragm 820 that exceeds the display panel 850 on the top surface 220 of the first part 310 of the back plate 300 overlap, thereby resulting in Figure 2 There is no position for the fixing member 400 to connect with the back plate 300 directly below the portion of the middle cover plate 100 that extends beyond the display panel 850 .

[0060] From above, reference Figure 2 and Figure 4 Optionally, the connection between the second end of the fixing member 400 provided in the embodiment of the present application and the back plate 300 may be located outside the outer wall of the outer side of the cover plate 100. In other words, the connection between the fixing member 400 and the first portion 310 may be located outside the bottom surface of the cover plate 100 in the orthographic projection of the bottom surface of the cover plate 100. Exemplarily, the fixing member 400 may include a third section 430 and a fourth section 440, and the third section 430 may be connected to the end of the first section 410 away from the display panel 850 (such as Figure 4 The fourth section 440 may be connected to the third section 430 and may be bent toward the first portion 310 of the back plate 300, and a certain distance may be provided between the side wall of the third section 430 and the diaphragm 820. The fourth section 440 may form the second end of the fixing member 400, and the fourth section 440 may be connected to the first portion 310 of the back plate 300. The projection of the fourth section 440 on the bottom surface of the cover plate 100 along a preset direction is located on the outside of the cover plate 100. It should be noted that the second end of the fixing member 400 may also have other structural forms, Figure 2 and Figure 4 This is just an example, and does not specifically limit the structural form of the second end of the fixing member 400. In addition, optionally, the second end of the fixing member 400 can be connected to the first portion 310 of the back plate 300 by fasteners such as bolts and screws using the tightening force of the thread, so as to facilitate disassembly and provide a strong connection strength.

[0061] Continue to refer Figure 2-Figure 4 The outer frame 200 and the fixing member 400 can be snap-connected to facilitate the removal of the outer frame 200 from the fixing member 400. The direction of the snap-connecting force between the outer frame 200 and the fixing member 400 is consistent with the preset direction (such as Figure 2The upper and lower directions shown in the figure intersect with each other to reduce the value of the force along the preset direction between the outer frame 200 and the fixing member 400, thereby reducing the supporting effect of the outer frame 200 on the cover plate 100, thereby reducing the influence of the outer frame 200 on the cover plate 100, the display panel 850, etc., and thus facilitating the disassembly, assembly and replacement of the outer frame 200.

[0062] Furthermore, the direction of the engagement force between the outer frame 200 and the fixing member 400 is perpendicular to the preset direction, so as to further reduce the impact of the disassembly, assembly and replacement of the outer frame 200 on the cover 100. Figure 2 and Figure 3 The outer frame 200 may have a first end and a second end that are arranged opposite to each other. Figure 2 and Figure 3 The lower end of the outer frame 200 may face the first portion 310 of the back plate 300, and the second end of the outer frame 200 may be provided with a first connecting portion 210. The fixing member 400 may be provided with a second connecting portion 460 disposed toward the second end of the outer frame 200, and the second connecting portion 460 and the first connecting portion 210 may be concave-convex matched and snap-connected. In this way, the purpose of limiting the position of the outer frame 200 relative to the fixing member 400 is achieved by utilizing the mutual restriction of the inner side wall of the groove 620 and the outer side wall of the protrusion 610 in the concave-convex match, and the mutual restriction of the inner bottom wall of the groove 620 and the outer bottom wall of the protrusion 610. In addition, the first connection part 210 can be inserted into the second connection part 460 along a preset direction (or the second connection part 460 can be inserted into the first connection part 210 along a preset direction), and the engagement force between the first connection part 210 and the second connection part 460 intersects or is even perpendicular to the insertion direction (i.e., the preset direction), so that the outer frame 200 can move along the preset direction and can be fixed to the fixing member 400 under the action of an external force along the preset direction, or the outer frame 200 can move along the preset direction and can be separated from the fixing member 400 under the action of an external force along the preset direction, thereby achieving the purpose of quickly disassembling and assembling the outer frame 200, and reducing the impact of the assembly and disassembly of the outer frame 200 on the cover plate 100. At the same time, the use of this design method meets the user's design requirements for narrow edges of the display device, making the appearance of the display device more beautiful.

[0063] In order to achieve a snap-fitting force perpendicular to a preset direction, the snap-fitting connection between the fixing member 400 and the outer frame 200 is located at the positive projection of the top surface 220 of the cover plate 100, and can be located on the outside of the top surface 220 of the cover plate 100 to avoid interference between the outer frame 200 and the cover plate 100 during movement along the preset direction.

[0064] In addition, the first connection portion 210 and the second connection portion 460 may be arranged in the following ways:

[0065] In one possible arrangement of the first connection portion 210 and the second connection portion 460, refer to Figure 2-Figure 4 , the first connection portion 210 may be a protrusion 610 extending along a preset direction. The second connection portion 460 may include a connection groove and a buckle 630. The connection groove may have an inner cavity for accommodating the protrusion 610 and a notch facing the outer frame 200, the buckle 630 may be elastic and may be disposed on the inner groove wall of the connection groove, and the buckle 630 and the protrusion 610 may be snap-connected.

[0066] refer to Figure 4 Exemplarily, the fixing member 400 may include a fifth section 450, which may be connected to the fourth section 440 and may be bent toward the cover plate 100 relative to the fourth section 440, and the fifth section 450 and the third section 430 may form the connecting groove mentioned above, and the buckle 630 may be arranged on the fifth section 450.

[0067] In another possible arrangement of the first connection portion 210 and the second connection portion 460, refer to Figure 5 The first connection portion 210 may include a protrusion 610 and a buckle 630. The protrusion 610 may extend along a preset direction, and the buckle 630 may be elastic and may be disposed on a side wall of the protrusion 610. The second connection portion 460 may be a connection groove, which may have an inner cavity for accommodating the protrusion 610 and a notch facing the outer frame 200.

[0068] In another possible arrangement of the first connection portion 210 and the second connection portion 460, refer to Figure 6 The first connection portion 210 may be a connection groove, and the connection groove may have a notch facing the fixing member 400. The second connection portion 460 may include a protrusion 610 and a buckle 630. The protrusion 610 may be inserted into the connection groove, the buckle 630 may be elastic and may be disposed on the side wall of the protrusion 610, and the buckle 630 and the connection groove may be snap-connected.

[0069] In another possible arrangement of the first connection portion 210 and the second connection portion 460, refer to Figure 7 The first connection portion 210 includes a connection groove and a buckle 630. The connection groove may have a notch facing the fixing member 400, and the buckle 630 may be elastic and may be disposed on the inner groove wall of the first connection groove. The second connection portion 460 may be a protrusion 610, which may be inserted into the connection groove and may be engaged with the buckle 630.

[0070] In order to avoid the related art (such as Figure 1 As shown in FIG. 1 , the frame 920 has a large control area for the appearance of the infrared touch display screen, high requirements for the frame 920, and low production efficiency, which leads to the problem of high cost of the frame 920. Figure 2-Figure 4Optionally, the back plate 300 provided in the embodiment of the present application may further include a second portion 320, which may be connected to the first portion 310, and the second portion 320 may be bent relative to the first portion 310 toward the top surface 220 of the outer frame 200, and the second portion 320 may be higher than the fixing member 400, and the second portion 320 may be wrapped around the outer side of the fixing member 400 and part of the outer frame 200. In this way, the second portion 320 of the back plate 300 may block the outer side wall of the fixing member 400 and part of the outer side wall of the outer frame 200, so that the second portion 320 of the back plate 300 may form the outer side wall of the display device, so as to reduce the control of the outer frame 200 on the appearance and reduce the production cost of the outer frame 200. In addition, the color of the outer frame 200 and the color of the back plate 300 may be combined and matched to meet the user's various combination requirements for the color of the appearance of the display panel 850.

[0071] Continue to refer Figure 2-Figure 4 Optionally, the top surface 220 of the second portion 320 of the back plate 300 may be lower than the top surface 220 of the outer frame 200. The outer frame 200 may have a limiting surface 240, which may abut against the top surface 220 of the outer frame 200. In this way, when the limiting surface 240 abuts against the top surface 220 of the second portion 320 of the back plate 300, it indicates that the outer frame 200 is installed in place to limit the position of the outer frame 200 relative to the back plate 300.

[0072] Optionally, a receiving groove 500 may be formed between the fixing member 400 and the second portion 320, and the receiving groove 500 may have a notch facing the top surface 220 of the outer frame 200, and the inner cavity of the receiving groove 500 may accommodate at least a portion of the outer frame 200. In this way, the bottom surface of the receiving groove 500 can be used to support the bottom surface of the outer frame 200, and the inner side wall of the receiving groove 500 can be used to limit the outer side wall of the outer frame 200, which also facilitates the groove assembly of the outer frame 200 and the detachment of the fixing member 400 along the groove wall.

[0073] Further, the bottom surface of the outer frame 200 may have a high area 231 and a low area 232 arranged around the first connection portion 210, and the high area 231 may be higher than the low area 232. The bottom surface of the receiving groove 500 may have a high side 510 and a low side 520 arranged around the second connection portion 460, and the high side 510 may be higher than the low side 520. The high side 510 of the receiving groove 500 may support the high area 231 of the outer frame 200, and the low side 520 of the receiving groove 500 may support the low area 232 of the outer frame 200. In this way, a foolproof design is performed through high and low potentials to prevent users from inserting incorrectly.

[0074] For example, Figure 3 The high area 231 and the low area 232 are respectively located at the left and right sides of the first connecting portion 210 . Figure 4In the embodiment, the right side surface of the second portion 320 of the back plate 300 beyond the fifth section 450 of the fixing member 400, the top surface 220 of the fifth section 450, the top surface 220 of the third section 430, and the left side surface of the second section 420 of the fixing member 400 can be combined to form a receiving groove 500. The top surface 220 of the fifth section 450 is higher than the top surface 220 of the third section 430, the top surface 220 of the fifth section 450 constitutes a high side 510, and the top surface 220 of the third section 430 constitutes a low side 520.

[0075] Among them, the terms "upper" and "lower" are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description and is not used to limit the scope of implementation of the present application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present application without substantially changing the technical content.

[0076] It should be noted that: in this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0077] In addition, in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, characterized in that: include: Cover plate; An outer frame, wrapped around the outer side of the cover plate; A back plate, comprising a first portion, wherein the first portion and the cover plate are spaced apart along a preset direction; A fixing member is connected between the cover plate and the first part, and the fixing member is engaged with the outer frame, and a direction of an engagement force between the fixing member and the outer frame intersects with the preset direction.

2. The display device according to claim 1, characterized in that The direction of the engaging force between the fixing member and the outer frame is perpendicular to the preset direction.

3. The display device according to claim 2, characterized in that: The outer frame has a first end and a second end that are oppositely arranged along the preset direction, and the second end of the outer frame faces the first portion and is provided with a first connecting portion; The fixing member is provided with a second connecting portion arranged toward the second end of the outer frame, and the second connecting portion is matched with the first connecting portion in a concave-convex manner and is engaged and connected.

4. The display device according to claim 3, characterized in that: The first connecting portion is a protrusion extending along the preset direction; the second connecting portion includes a connecting groove and a buckle, the connecting groove has an inner cavity for accommodating the protrusion and a notch facing the outer frame, the buckle is elastic and is arranged on the inner groove wall of the connecting groove, and the buckle is engaged and connected with the protrusion; Or, the first connecting portion includes a protrusion and a buckle, the protrusion extends along the preset direction, the buckle is elastic and is arranged on the side wall of the protrusion; the second connecting portion is a connecting groove, the connecting groove has an inner cavity for accommodating the protrusion and a notch facing the outer frame; Or, the first connecting portion includes a connecting groove and a buckle, the connecting groove has a notch facing the fixing member, and the buckle is elastic and is arranged on the inner groove wall of the first connecting groove; the second connecting portion is a protrusion, the protrusion is passed through the connecting groove and is connected with the buckle by snapping; Alternatively, the first connecting portion is a connecting groove having a notch facing the fixing member; the second connecting portion includes a protrusion and a buckle, the protrusion is passed through the connecting groove, the buckle is elastic and is arranged on the side wall of the protrusion, and the buckle is snap-connected with the connecting groove.

5. The display device according to any one of claims 1 to 4, characterized in that: The fixing member includes a first section and a second section, the first section is arranged on a side of the cover plate facing the first part and connected to the cover plate, the second section is connected to the first section and bent relative to the first section toward the top surface of the cover plate, and the second section is connected to the side wall of the cover plate.

6. The display device according to claim 3, characterized in that: The outer frame has a top surface and a bottom surface arranged opposite to each other in the preset direction; The back panel also includes a second part, which is connected to the first part and bent toward the top surface of the outer frame relative to the first part, and the second part is higher than the fixing member, and the second part is wrapped around the outside of the fixing member and part of the outer frame.

7. The display device according to claim 6, characterized in that: The top surface of the second portion is lower than the top surface of the outer frame; The outer frame has a limiting surface, and the limiting surface abuts against the top surface of the outer frame.

8. The display device according to claim 6, characterized in that: An accommodating groove is formed between the fixing member and the second portion. The accommodating groove has a notch facing the top surface of the outer frame, and the inner cavity of the accommodating groove accommodates at least a portion of the outer frame.

9. The display device according to claim 8, characterized in that: The bottom surface of the outer frame has a high area and a low area arranged around the first connecting portion, and the high area is higher than the low area; The bottom surface of the accommodating groove has a high side and a low side arranged around the second connecting portion, the high side is higher than the low side, the high side of the accommodating groove supports the high area of ​​the outer frame, and the low side of the accommodating groove supports the low area of ​​the outer frame.

10. The display device according to any one of claims 1 to 4, characterized in that: The orthographic projection of the connection between the fixing member and the first part on the bottom surface of the cover plate is located outside the bottom surface of the cover plate; And / or, the orthographic projection of the engaging connection between the fixing member and the outer frame on the top surface of the cover plate is located outside the top surface of the cover plate; And / or, an adhesive layer is provided between the fixing member and the cover plate; and / or, the fixing member is connected to the first part by bolts or screws; And / or, the fixing piece is a metal strip.

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