CN219715877U - Backlight module and interactive intelligent panel - Google Patents

Abstract

The utility model provides a backlight module and an interactive intelligent panel. The backlight module comprises a back plate, a middle frame and a soft magnetic strip, wherein the middle frame comprises a first part used for being connected with the back plate, the soft magnetic strip is bonded with the first part, and the middle frame is adsorbed on the back plate through the soft magnetic strip. In the utility model, the middle frame is adsorbed on the back plate through the soft magnetic stripe, so that the installation of the middle frame and the back plate is realized. The connecting structure is simple, a connecting piece is not needed, and the backboard is not needed to design a sprouting hole structure when the backboard is connected through the connecting piece, so that the assembling efficiency is improved. Furthermore, the backboard does not contain a sprouting hole structure, so that the backboard compatibility is improved, namely, the backboard can be used for a backlight module with a middle frame or a backlight module without a middle frame, thereby being beneficial to improving the standardization of the backboard and further being beneficial to improving the convenience of backboard material management.

Description

Backlight module and interactive intelligent panel

Technical Field

The utility model relates to the technical field of display, in particular to a backlight module and an interactive intelligent panel.

Background

In the related art, the backlight module applied to the interactive intelligent flat panel comprises a back plate, a middle frame and other components. The back plate is internally provided with a containing cavity for containing components such as a liquid crystal panel, an optical membrane and the like. The middle frame is locked on the back plate through the connecting piece, so that on one hand, the limiting effect on the optical film assembly can be achieved, the optical film assembly is prevented from falling off, and on the other hand, the bearing effect on the liquid crystal panel can be achieved. However, the assembling process of the middle frame and the back plate is complicated due to more connecting pieces, so that the assembling efficiency of the backlight module is not improved.

Disclosure of Invention

Based on the above, the utility model provides a backlight module and an interactive intelligent panel, which are beneficial to improving the assembly efficiency of the backlight module.

An embodiment of a first aspect of the present utility model provides a backlight module for an interactive smart tablet. The backlight module comprises a back plate, a middle frame and a soft magnetic strip, wherein the middle frame comprises a first part used for being connected with the back plate, the soft magnetic strip is bonded with the first part, and the middle frame is adsorbed on the back plate through the soft magnetic strip.

In the utility model, the middle frame is adsorbed on the back plate through the soft magnetic stripe, so that the installation of the middle frame and the back plate is realized. The connecting structure is simple, a connecting piece is not needed, and the backboard is not needed to design a sprouting hole structure when the backboard is connected through the connecting piece, so that the assembling efficiency is improved.

Further, along with the update iteration of the display module technology, a backlight module without a middle frame is also presented at present. If the connection mode of the connecting piece is adopted in the related art, the back plate in the backlight module is divided into two types, wherein one type of the back plate contains the sprouting hole structure, and the other type of the back plate does not contain the sprouting hole structure. In the utility model, the middle frame is adsorbed on the backboard through the soft magnetic strip, so that the backboard does not contain a sprouting hole structure, and the type of the backboard is only one regardless of the backlight module containing the middle frame or the backlight module not containing the middle frame. Therefore, the backboard has improved compatibility, namely, the backboard can be used for backlight modules with middle frames or backlight modules without middle frames, thereby being beneficial to improving the standardization of the backboard and further being beneficial to improving the convenience of backboard material management.

In some embodiments, the backlight module further comprises a frame and a connecting piece, a threaded hole is formed in the frame, a first through hole corresponding to the threaded hole is formed in the back plate, a second through hole penetrating through the soft magnetic strip and the first portion is formed in the back plate, and the connecting piece sequentially penetrates through the first through hole, the second through hole and the threaded hole to be connected.

In some embodiments, the middle frame further includes a second portion connected to the first portion, the second portion extending toward a side of the first portion facing away from the rim.

In some embodiments, the backlight module further comprises an optical film assembly disposed between the back plate and the second portion of the middle frame.

In some embodiments, a positioning block is disposed on a surface of the back plate, which is close to one side of the middle frame, and a positioning hole matched with the positioning block is disposed on the optical film assembly.

In some embodiments, the backlight module further includes an infrared filter connected to a side of the bezel facing away from the back plate.

In some embodiments, the backlight module is a direct type backlight module or a side-in type backlight module.

An embodiment of a second aspect of the present utility model provides an interactive smart tablet, including a display module and a backlight module according to the first aspect.

In some embodiments, the display module includes a liquid crystal panel and tempered glass positioned on a light emitting side of the liquid crystal panel.

In some embodiments, the tempered glass is bonded to the liquid crystal panel by a foam adhesive.

Drawings

Fig. 1 is a schematic diagram of a partial cross-sectional structure of a backlight module according to an embodiment of the utility model;

fig. 2 is a schematic diagram of a partial cross-sectional structure of an interactive smart tablet according to an embodiment of the present utility model.

The reference numerals are as follows:

10-an interactive smart tablet; 100-a backlight module; 110-a back plate; 110 a-a body; 110 b-flanging; 110 c-a support; 120-middle frame; 120 a-a first portion; 120 b-a second portion; 130-a soft magnetic stripe; 140-frame; 150-connecting piece; 141-a threaded hole; 111-a first through hole; 131-a second through hole; 200-a display module; s1, a first accommodating space; s2-a second accommodating space; 112-positioning blocks; 160-infrared filter strips; 210-a liquid crystal panel; 220-toughened glass; 230-foam rubber.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, 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, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1, an embodiment of the present utility model provides a backlight module 100. The backlight module 100 includes a back plate 110, a middle frame 120, and a soft magnetic stripe 130. The middle frame 120 includes a first portion 120a for connecting with the back plate 110, the soft magnetic stripe 130 is adhered to the first portion 120a, and the middle frame 120 is attached to the back plate 110 through the soft magnetic stripe 130.

The back plate 110 is a bottom plate of the backlight module 100, which is a sheet metal stamping part, and has magnetic attraction with the soft magnetic stripe 130. As shown in fig. 1, the back plate 110 includes a main body 110a, a flange 110b located at a side of the main body 110a, and a supporting portion 110c connected to the main body 110a and located at a side of the main body 110a facing away from the middle frame 120. The supporting portion 110c is used for enhancing the strength of the back plate 110, and the main body 110a and the flange 110b together form a receiving cavity for receiving other components.

The soft magnetic stripe 130 is a magnet having softness, elasticity and twistability, which is made of magnetic powder and natural rubber powder through processes such as extrusion molding, calendaring molding, injection molding, etc., and may be generally referred to as a rubber magnetic stripe.

The middle frame 120 is used for carrying the liquid crystal panel on one hand and for limiting the optical film assembly on the other hand. The middle frame 120 includes a first portion 120a, and the first portion 120a is adhered to the soft magnetic stripe 130 by a transparent double sided adhesive such as an acrylic double sided adhesive, so that the middle frame 120 is integrally connected to the soft magnetic stripe 130. Typically, the soft magnetic stripe 130 itself is provided with a transparent double sided adhesive. In some embodiments, the material of the middle frame 120 is a PC (polycarbonate) material, and the middle frame 120 is made of a PC material with low cost, easy molding, and good heat dissipation performance. In other embodiments, the middle frame may also be an aluminum piece formed by an extrusion process that is stronger than the plastic material, thereby facilitating improved life and load bearing performance of the middle frame 120.

In the utility model, the middle frame 120 is adsorbed on the back plate 110 through the soft magnetic strip 130, so that the installation of the middle frame and the back plate is realized. The connecting structure is simple, a connecting piece is not needed, and the backboard is not needed to design a sprouting hole structure when the backboard is connected through the connecting piece, so that the assembling efficiency is improved.

Further, along with the update iteration of the display module technology, a backlight module without a middle frame is also presented at present. If the connection mode of the connecting piece is adopted in the related art, the back plate in the backlight module is divided into two types, wherein one type of the back plate contains the sprouting hole structure, and the other type of the back plate does not contain the sprouting hole structure. In the present utility model, the middle frame 120 is adsorbed on the back plate 110 through the soft magnetic stripe 130, so that the back plate 110 does not have a sprouting hole structure, and therefore, the type of the back plate is only one regardless of the backlight module with the middle frame or the backlight module without the middle frame. In this way, the backboard 110 of the utility model can be used for backlight modules with middle frames or backlight modules without middle frames, thereby being beneficial to improving the standardization of the backboard 110 and further improving the convenience of material management of the backboard 110.

In some embodiments, the backlight module 100 further includes a frame 140 and a connecting member 150, the frame 140 is provided with a threaded hole 141, the back plate 110 is provided with a first through hole 111 corresponding to the threaded hole 141, the soft magnetic stripe 130 and the first portion 120a are provided with a second through hole 131 penetrating therethrough, and the connecting member 150 sequentially penetrates through the first through hole 111, the second through hole 131 and the threaded hole 141.

In this embodiment, the backlight module 100 further includes a frame 140 and a connecting member 150. The frame 140 is located at a side of the back plate 110. The frame 140 may be an extrusion-molded frame for fixing the infrared touch display module. The connection member 150 may be a screw, a bolt, etc., to which the present utility model is not limited. The connection member 150 sequentially passes through the first through hole 111 and the second through hole 131 to be connected with the threaded hole 141, so that the connection member 150 sequentially locks the back plate 110, the soft magnetic stripe 130, the middle frame 120 and the frame 140 together. That is, the connection member 150 for connecting the bezel 140 and the back plate 110 is also used for fixing the middle frame 120, thereby confining the middle frame 120 between the bezel 140 and the back plate 110. In this way, the connecting middle frame 120 and the back plate 110 are locked by the multiplexing connecting piece 150, which is beneficial to improving the connection stability of the middle frame 120 and the back plate 110 without adding additional connecting pieces, simplifying the structure of the backlight module 100 and improving the assembly efficiency.

In some embodiments, the middle frame 120 further includes a second portion 120b connected to the first portion 120a, the second portion 120b extending toward a side of the first portion 120a facing away from the bezel 140.

In this embodiment, the extending direction of the second portion 120b is parallel to the plane of the main body 110a of the back plate 110, so that a first accommodating space S1 is formed between the second portion 120b and the back plate 110, and a second accommodating space S2 is formed on a side of the second portion 120b facing away from the back plate 110. The liquid crystal panel 210 of the display module 200 is disposed in the second accommodating space S2, and the edge of the liquid crystal panel 210 is attached to one side of the second portion 120b facing away from the back plate 110, so that the middle frame 120 performs a bearing and fixing function on the liquid crystal panel 210.

Further, in some embodiments, the backlight module 100 further includes an optical film assembly (not shown) disposed between the back plate 110 and the second portion 120b of the middle frame 120. The optical film assembly is used for realizing uniformity and diffusion of light rays. The optical film assembly is located in the first accommodating space S1 and is limited by the second portion 120b, so that the optical film assembly is fixed. That is, the second portion 120b performs a limiting function on the optical film assembly on one hand and a load-bearing and fixing function on the liquid crystal panel 210 on the other hand.

In some embodiments, a buffer is also provided between the optical film assembly and the second portion 120b, thereby facilitating a reduction in the probability of deformation damage to the optical film assembly due to the optical film assembly being compressed by the second portion 120 b. In general, an optical film assembly includes a reflective sheet, a diffusion sheet, a prism sheet, a brightness enhancing film, and the like.

In some embodiments, the backlight module 100 further includes a light source, and the backlight module 100 is further divided into a direct type backlight module and a side-in type backlight module according to the position distribution of the light source.

In some embodiments, the backlight module 100 is a direct type backlight module. The direct type backlight module refers to that light emitted by the light source directly propagates along the thickness direction of the backlight module, and the light source is located at the bottom of the back plate 110, that is, the plane of the light source is parallel to the plane of the main body 110a of the back plate 110. At this time, the backlight module 100 may not include the light guide plate. The direct type backlight module 100 has a simple structure and low cost.

In other embodiments, the backlight module 100 is a side-in backlight module. The side-in backlight module refers to that the light source is located at a side of the backlight module, and at this time, the backlight module 100 further includes a light guide plate. The light emitted by the side light source is transmitted along the thickness direction of the backlight module after being converted by the light guide plate. The side-entering type backlight module is small in size and thin in thickness, so that the light weight, the thinness and the portability of the interactive intelligent panel are facilitated.

Further, the light source of the backlight module 100 may be one of cold cathode fluorescent lamp, light emitting diode, and electroluminescence, which is not limited in the present utility model.

In some embodiments, a positioning block 112 is disposed on a surface of the back plate 110 near the middle frame 120, and a positioning hole (not shown) is disposed on the optical film assembly, which is matched with the positioning block 112. When the optical film assembly is assembled on the back plate 110, the positioning hole is only required to pass through the positioning block 112, so that the optical film assembly can be positioned on the back plate 110. Thus, the mounting accuracy of the optical film assembly is improved. Further, the positioning block 112 may be a pin, which may be integrally formed with the back plate 110. In fig. 1, only one positioning block 112 is schematically shown, and more positioning blocks may be actually provided, so that the optical film assembly may be quickly aligned with the back plate 110.

In some embodiments, the backlight module 100 further includes an infrared filter 160 connected to a side of the bezel 140 facing away from the back plate 110. The infrared filter 160 can be applied to an infrared touch display module. By arranging the infrared filter 160, the infrared penetration effect is improved, and the touch effect of the display module 200 is improved.

As shown in fig. 2, an embodiment of the second aspect of the present utility model provides an interactive smart tablet 10, which includes a display module 200 and the backlight module 100 according to the first aspect. It is easily understood that the display module 200 may be disposed on a side surface of the second portion 120b of the middle frame 120 facing away from the back plate 110.

The interactive smart tablet 10 of the present utility model uses the backlight module 100 of the first aspect. The middle frame 120 of the backlight module 100 is adsorbed on the back plate 110 through the soft magnetic stripe 130, so that the two are installed. The connecting structure is simple, a connecting piece is not needed, and the backboard is not needed to design a sprouting hole structure when the backboard is connected through the connecting piece, so that the assembly efficiency of the backlight module 100 and the interactive intelligent flat panel 10 is improved.

Further, along with the update iteration of the display technology, a backlight module without a middle frame is also presented at present. If the connection mode of the connecting piece is adopted in the related art, the back plate in the backlight module is divided into two types, wherein one type of the back plate contains the sprouting hole structure, and the other type of the back plate does not contain the sprouting hole structure. In the present utility model, the middle frame 120 is adsorbed on the back plate 110 through the soft magnetic stripe 130, so that the back plate 110 does not have a sprouting hole structure, and therefore, the type of the back plate is only one regardless of the backlight module with the middle frame or the backlight module without the middle frame. In this way, the backboard 110 of the utility model can be used for backlight modules with middle frames or backlight modules without middle frames, thereby being beneficial to improving the standardization of the backboard 110 and further improving the convenience of material management of the backboard 110.

In some embodiments, as shown in fig. 2, the display module 200 includes a liquid crystal panel 210 and a tempered glass 220 positioned on the light emitting side of the liquid crystal panel. In the present utility model, the liquid crystal panel 210 may be an infrared touch liquid crystal panel, a capacitive touch liquid crystal panel, an optical touch liquid crystal panel, and the like, which is not limited in the present utility model. The tempered glass 220 is further disposed on the light-emitting side of the liquid crystal panel 210, so that the liquid crystal panel 210 can be protected, and reliability and service life of the liquid crystal panel can be improved.

In some embodiments, the tempered glass 220 is adhered to the liquid crystal panel 210 by the foam 230. The foam rubber 230 has a certain buffering performance, so that the fixing reliability of the toughened glass 220 and the liquid crystal panel 210 is improved, and the buffering performance between the liquid crystal panel 210 and the toughened glass 220 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a backlight unit for interactive intelligent flat board, its characterized in that includes backplate, center and soft magnetic stripe, the center including be used for with the first part that the backplate is connected, soft magnetic stripe with first part bonds, the center passes through soft magnetic stripe adsorbs on the backplate.

2. The backlight module according to claim 1, further comprising a frame and a connecting piece, wherein a threaded hole is formed in the frame, a first through hole corresponding to the threaded hole is formed in the back plate, a second through hole penetrating through the soft magnetic strip and the first portion is formed in the back plate, and the connecting piece sequentially penetrates through the first through hole and the second through hole to be connected with the threaded hole.

3. A backlight module according to claim 2, wherein the middle frame further comprises a second portion connected to the first portion, the second portion extending towards a side of the first portion facing away from the bezel.

4. A backlight module according to claim 3, further comprising an optical film assembly disposed between the back plate and the second portion of the middle frame.

5. The backlight module according to claim 4, wherein a positioning block is disposed on a surface of the back plate, which is close to the middle frame, and a positioning hole matched with the positioning block is disposed on the optical film assembly.

6. The backlight module according to claim 2, further comprising an infrared filter connected to a side of the bezel facing away from the back plate.

7. The backlight module according to claim 1, wherein the backlight module is a direct type backlight module or a side-in type backlight module.

8. An interactive intelligent tablet comprising a display module and a backlight module according to any one of claims 1-7.

9. The interactive smart tablet of claim 8, wherein the display module comprises a liquid crystal panel and tempered glass positioned on a light-emitting side of the liquid crystal panel.

10. The interactive smart tablet of claim 9, wherein the tempered glass is bonded to the liquid crystal panel by a foam adhesive.