Display device

Abstract

The application discloses a display device, characterized in that comprising a backlight module and a display panel arranged on the backlight module, the backlight module comprising a glass lamp plate and a diffusion plate, the glass lamp plate and the diffusion plate being arranged in a laminated mode, the glass lamp plate comprising a glass substrate, a circuit layer arranged on the glass substrate, and a lamp bead connected with the circuit layer, the diffusion plate being arranged on a light-emitting surface of the lamp bead, the backlight module further comprising double-sided adhesive tape, the double-sided adhesive tape being arranged around the periphery of the glass substrate to bond the glass substrate and the display panel. The glass substrate is used as the lamp plate and also as the back plate, the glass substrate has high flatness and guaranteed thickness, the display panel and the backlight module can be bonded by using the double-sided adhesive tape, the outer middle frame is cancelled, and the double-sided adhesive tape or screws or glue for fixing the lamp plate to the back plate is cancelled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, no radiation, etc., and has been widely applied. As the communication interface between users and information, LCD has become the current mainstream display mode due to its superior characteristics such as high space utilization, low electromagnetic interference and no radiation, and is widely used in new communication tools such as televisions, smart phones and tablet computers. The liquid crystal module of the liquid crystal display itself does not emit light, but the backlight module provides light source for the liquid crystal module. The backlight module of the liquid crystal display includes direct backlight module and side backlight module. The direct backlight module is widely used in the industry due to its superior cost advantage and gradually becomes the mainstream structure of the liquid crystal display.

[0003] At present, most of the Mini-LED liquid crystal display products on the market are arranged with LED lamps on the surface of an aluminum substrate or an FR4 substrate, and an iron back plate or an aluminum back plate is further arranged to fix the display panel. The iron back plate and the aluminum back plate need to be buckled by a plastic frame, which leads to troublesome installation, time-consuming and increased cost. SUMMARY

[0004] The purpose of the present application is to provide a display device, which reduces the original structure of the display device, makes the installation of the display device simple, and reduces the cost.

[0005] The present application discloses a display device, which comprises a backlight module and a display panel arranged on the backlight module. The backlight module comprises a glass lamp plate and a diffusion plate. The glass lamp plate and the diffusion plate are arranged in layers. The glass lamp plate comprises a glass substrate, a circuit layer arranged on the glass substrate, and a lamp bead connected with the circuit layer. The diffusion plate is arranged on the light emitting surface of the lamp bead. The backlight module further comprises double-sided adhesive tape. The double-sided adhesive tape surrounds the periphery of the glass substrate to paste the glass substrate and the display panel.

[0006] Optionally, the double-sided adhesive tape comprises a double-sided adhesive tape main material and a fiber material. The fiber material is filled in the double-sided adhesive tape main material. In the extension direction of the side surface of the glass substrate, the thickness of the double-sided adhesive tape is s. In the direction of the glass substrate towards the diffusion plate, the thickness of the glass substrate is d. Wherein, 2mm≤s≤2.6mm, 1.8mm≤d≤3mm.

[0007] Optionally, a support column is arranged between the glass substrate and the diffusion plate, the double-sided adhesive tape is arranged between the glass substrate and the display panel, one end of the double-sided adhesive tape is bonded to the display panel, and the other end is bonded to the glass substrate; the height of the double-sided adhesive tape is higher than the height of the support column and the height of the lamp bead in the direction of the glass substrate towards the diffusion plate; wherein the double-sided adhesive tape comprises a plastic part and a glue material, and the glue material surrounds the plastic part.

[0008] Optionally, the double-sided adhesive tape comprises a first surface, a second surface and a third surface, the first surface is attached to the display panel, the second surface is attached to the glass substrate, and the third surface is arranged perpendicular to the first surface and the second surface, the third surface is one surface of the mixed light cavity formed close to the diffusion plate and the glass substrate, and a white or yellow ink layer is arranged on the third surface, and the white or yellow ink layer is doped with diffusion particles.

[0009] Optionally, the double-sided adhesive tape comprises a first surface, a second surface, a third surface and a fourth surface, the first surface is attached to the display panel, the second surface is attached to the glass substrate, the third surface and the fourth surface are arranged perpendicular to the first surface and the second surface, the third surface and the fourth surface are arranged in parallel and opposite to each other, the third surface is one surface of the mixed light cavity formed close to the diffusion plate and the glass substrate, and the double-sided adhesive tape is further filled with yellow or white particles, and the number of yellow or white particles decreases in sequence in the direction of the third surface towards the fourth surface.

[0010] Optionally, the double-sided adhesive tape comprises a first surface, a second surface, a third surface and a fourth surface, the first surface is attached to the display panel, the second surface is attached to the glass substrate, the third surface and the fourth surface are arranged perpendicular to the first surface and the second surface, the third surface and the fourth surface are arranged in parallel and opposite to each other, the third surface is one surface of the mixed light cavity formed close to the diffusion plate and the glass substrate, the fourth surface is flush with the side surface of the diffusion plate and the glass substrate, the double-sided adhesive tape is arranged on the edge of the glass substrate, and the position of the lamp bead corresponding to the edge of the glass substrate is hollowed out.

[0011] Optionally, the backlight module comprises an optical film, the optical film is arranged on the side of the diffusion plate away from the glass substrate, the shape of the optical film is the same as that of the diffusion plate, and the periphery of the optical film is flush with the periphery of the diffusion plate; the display device further comprises a display panel and a decorative sealant, the display panel is arranged on the side of the optical film away from the diffusion plate, and the decorative sealant is arranged around the periphery of the display panel to bond the display panel and the backlight module.

[0012] Optionally, the display device comprises a front frame and a chip on film, the front frame is arranged on the ground side of the display panel and is used for fixing the display panel and the backlight module, the chip on film is arranged on the ground side of the display panel and is bent away from one side of the glass substrate away from the diffusion plate and is attached to one side of the glass substrate away from the diffusion plate, and the one side of the glass substrate away from the diffusion plate is provided with a decorative coating; wherein the front frame comprises a side surface and a bottom surface, the side surface is perpendicular to the bottom surface, the thickness of the bottom surface is greater than the thickness of the side surface, the ground side of the display panel is attached to the bottom surface of the front frame, and the bottom surface of the front frame is provided with a plurality of hollow structures.

[0013] Optionally, the double-sided adhesive tape comprises four edges connected in sequence, and the double-sided adhesive tape arranged on the ground side of the display panel is provided with a through hole, the through hole is arranged away from the hollow structure, and support columns are arranged between the diffusion plate and the glass substrate, and the number of support columns close to the ground side of the display panel is greater than the number of support columns on other sides of the display panel.

[0014] Optionally, the lamp beads are Mini-LED lamp beads, the lamp beads comprise red lamp beads, green lamp beads and blue lamp beads, the thickness of the transparent gel covering the blue lamp beads is less than the thickness of the transparent gel covering the red lamp beads or the green lamp beads, the height difference between the top of the transparent gel on the blue lamp beads and the diffusion plate is greater than or equal to the height difference between the top of the transparent gel on the red lamp beads or the green lamp beads and the diffusion plate, and the top of the transparent gel covering the red lamp beads, the green lamp beads and the blue lamp beads is less than the height of the double-sided adhesive tape in the direction from the glass substrate to the diffusion plate.

[0015] Compared with the backlight module of the iron back plate and the aluminum back plate, the application provides a novel backlight module, which uses a glass lamp plate as a lamp plate and a back plate. Because the flatness of the glass substrate is high, and the thickness of the glass substrate is set within a certain range, the thickness is guaranteed, the display panel and the backlight module can be pasted by using double-sided adhesive tape, so that the back plate does not need to be additionally arranged, the back plate structure is reduced, the overall thickness of the display device can be further reduced, the back plate does not need to be installed, the cost can be saved, the installation time can be saved, the double-sided adhesive tape or screws or glue for fixing the lamp plate to the back plate is cancelled, in addition, the display panel and the backlight module are pasted together by the double-sided adhesive tape, an outer middle frame does not need to be additionally arranged, the outer middle frame is cancelled, the internal structure of the display device is further reduced, the installation time is saved, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0017] Figure 1 is a structural schematic diagram of a display device of a first embodiment of the present application;

[0018] Figure 2 is a sectional schematic diagram of a display device of a second embodiment of the present application;

[0019] Figure 3 is a sectional schematic diagram of a display device of a third embodiment of the present application;

[0020] Figure 4 is a sectional schematic diagram of another display device of the third embodiment of the present application;

[0021] Figure 5 is a sectional schematic diagram of a display device of a fourth embodiment of the present application;

[0022] Figure 6 is a sectional schematic diagram of a display device of a fifth embodiment of the present application;

[0023] Figure 7 is a sectional schematic diagram of another display device of the fifth embodiment of the present application;

[0024] Figure 8 is a sectional schematic diagram of a display device of a sixth embodiment of the present application;

[0025] Figure 9 is an exploded structural diagram of the display device of the sixth embodiment of the present application;

[0026] Figure 10 is a sectional schematic diagram of a display device of a seventh embodiment of the present application.

[0027] Wherein, 100, display device; 200, backlight module; 210, glass lamp plate; 211, support column; 220, glass substrate; 221, first surface; 2211, first area; 2212, second area; 2213, back-shaped groove; 222, second surface; 223, groove; 224, side wall; 225, bottom wall; 226, arc chamfer; 227, line slot; 228, via hole; 230, circuit layer; 240, lamp bead; 250, transparent gel; 260, diffusion plate; 270, optical film; 280, double-sided adhesive; 281, first surface; 282, second surface; 283, third surface; 284, fourth surface; 285, ink layer; 286, diffusion particles; 287, through hole; 290, decorative film layer; 300, display panel; 400, sealing strip; 500, front frame; 510, side surface; 520, bottom surface; 600, chip on film. DETAILED DESCRIPTION

[0028] It needs to be understood that the terms used herein, the specific structures and functional details disclosed, are only for the purpose of describing specific embodiments, and are representative, but the present application can be embodied in many alternative forms, and should not be interpreted as being limited to the embodiments set forth herein.

[0029] In the description of the present application, the terms "first", "second" are only for the purpose of description, and should not be understood as indicating relative importance, or implying the number of the indicated technical features. Therefore, unless otherwise specified, the features limited by "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "includes" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can exist or be added.

[0030] In addition, the terms indicating the orientation or positional relationship of "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are described based on the orientation or relative positional relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and do not indicate that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0033] like Figure 1 As shown, as a first embodiment of this application, a display device 100 is disclosed. The display device 100 includes a backlight module 200 and a display panel 300 disposed on the backlight module 200. The backlight module 200 includes a glass lamp plate 210 and a diffuser plate 260. The diffuser plate 260 is disposed above the glass lamp plate 210. The glass lamp plate 210 includes a glass substrate 220, a circuit layer 230 disposed on the glass substrate 220, and LED beads 240 connected to the circuit layer 230. The diffuser plate 260 is disposed on the light-emitting surface of the LED beads 240. The backlight module 200 also includes double-sided adhesive 280, which is disposed around the glass substrate 220 to adhere the glass substrate 220 and the display panel 300. The thickness of the glass substrate 220 is d, where 1.8 mm ≤ d ≤ 2.2 mm.

[0034] In this embodiment, a novel backlight module 200 is provided for the fabrication of the display device 100 by using a glass substrate 220 as both a lamp panel and a back panel. Because the glass substrate has high flatness, and its thickness is set within a certain range (between 1.8mm and 2.2mm), light leakage is prevented. Furthermore, double-sided tape 280 can be used to adhere the display panel 300 and the backlight module 200 without concern about separation. Since the glass substrate can serve as both a lamp panel and a backlight module, it is suitable for use with the display panel 300. Since the backlight module 200 and the display panel 300 are glued together, there is no need for a separate backplate. This reduces the backplate structure and further reduces the overall thickness of the display device 100. It also eliminates the need for a traditional iron or aluminum backplate, and removes the double-sided adhesive 280, screws, or glue used to fix the light panel to the backplate. This not only saves on various materials to reduce costs but also saves installation time. Furthermore, the double-sided adhesive 280 glues the display panel 300 and the backlight module 200 together, eliminating the need for a separate outer frame. This further reduces the internal structure of the display device 100, saving installation time and lowering costs.

[0035] In order to ensure the pasting effect of the backlight module 200 and the display panel 300, in addition to limiting the thickness of the glass substrate 220, the thickness of the double-sided adhesive tape 280 is also selected and limited, and the adhesion effect of the double-sided adhesive tape 280 is also improved. Specifically, the double-sided adhesive tape 280 includes a double-sided adhesive tape main material and a fiber material, the fiber material is filled in the double-sided adhesive tape main material, and the thickness of the double-sided adhesive tape 280 is s in the extension direction of the side surface 510 of the glass substrate 220 towards the left and right sides, wherein 2mm≤s≤2.6mm. The double-sided adhesive tape 280 used in this embodiment is not easy to break because the fiber material is added in the main material of the double-sided adhesive tape 280, and the adhesion effect of the double-sided adhesive tape 280 is not affected because the fiber material is arranged in the middle, thereby ensuring the overall adhesion effect.

[0036] Reference Figure 2 As shown in the second embodiment of the present application, which is a further refinement of the above-mentioned first embodiment, a support column 211 is provided between the glass substrate 220 and the diffusion plate 260, the double-sided adhesive tape 280 is arranged between the glass substrate 220 and the display panel 300, one end of the double-sided adhesive tape 280 is bonded to the display panel 300, and the other end is bonded to the glass substrate 220. In the direction of the glass substrate 220 towards the diffusion plate 260, the height of the double-sided adhesive tape 280 is higher than the height of the support column 215 and the height of the lamp bead 240. The double-sided adhesive tape includes a plastic part and a glue material, and the glue material surrounds the plastic part.

[0037] By arranging the double-sided adhesive tape 280, the adhesion effect between the glass substrate 220 and the display panel 300 is achieved, and the double-sided adhesive tape 280 also has a certain supporting effect, which can support the related structures of the display panel 300, the diffusion plate 260 and the optical film 270 together with the support column 211. In order to ensure the supporting effect of the double-sided adhesive tape 280, the double-sided adhesive tape 280 is formed by a plastic part and a glue material, which can not only realize the pasting of the glass lamp panel 210 and the display panel 300, but also support the display panel 300.

[0038] Reference Figure 3 As shown in the third embodiment of the present application, the double-sided adhesive tape 280 is mainly optimized and improved. The double-sided adhesive tape 280 includes a first surface 281, a second surface 282 and a third surface 283. The first surface is bonded to the display panel, the second surface is bonded to the glass substrate, and the third surface 283 is perpendicular to the first surface 281 and the second surface 282. The third surface 283 is one side of the mixed light cavity formed by the diffusion plate 260 and the glass substrate. The third surface 283 is provided with a white or yellow ink layer 285, and the white or yellow ink layer 285 is doped with diffusion particles 286.

[0039] To address the uneven brightness between the edge and central display areas caused by edge light leakage, the double-sided adhesive was optimized. A transparent double-sided adhesive 280 is typically used, with a white or yellow ink layer 285 coated on the side of the adhesive 280 closest to the LED chip 240. Diffusion particles 286 are incorporated into the ink layer 285 to reduce edge light leakage and improve the utilization of light emitted from the edge LED chips, thereby increasing the brightness of the edge display area and preventing uneven brightness. Additionally, [reference needed]. Figure 4 As shown, the double-sided adhesive 280 also includes a fourth side 284. The first side 281 is bonded to the display panel 300, the second side 282 is bonded to the glass substrate 220, and the third side 283 and the fourth side 284 are arranged perpendicular to the first side 281 and the second side 282, and are parallel and opposite to each other. The third side 283 is the side close to the light mixing cavity formed by the diffuser plate 260 and the glass substrate 220. The double-sided adhesive 280 is also filled with yellow or white particles. Along the direction from the third side 283 to the fourth side 284, the number of yellow or white particles decreases sequentially. In this way, even if the light emitted by the lamp bead 240 passes through the surface of the double-sided adhesive 280 and reaches the interior of the double-sided adhesive 280, it will still be reflected back for use.

[0040] refer to Figure 5 As shown, as the fourth embodiment of this application, unlike the second or third embodiment described above, the fourth surface is flush with the side of the diffuser plate 260 and the glass substrate 220, the double-sided adhesive 280 is covered on the edge of the glass substrate 220, and the position of the lamp bead 240 corresponding to the edge of the glass substrate 220 is provided with a cutout to achieve a borderless display.

[0041] refer to Figure 6As shown, as the fifth embodiment of the present application, it is a further refinement of the above-mentioned first embodiment, the glass substrate 220 is of transparent material, having opposite first surface 221 and second surface 222, a plurality of grooves 223 are etched on the first surface 221; the circuit layer 230 is provided on the glass substrate 220, at least one lamp bead 240 is provided in each groove 223, the lamp bead 240 is electrically connected with the circuit layer 230, the double-sided adhesive 280 is provided between the display panel 300 and the glass substrate 220; under the condition that other conditions remain unchanged, the grooves are dug on the glass substrate 220, and then the lamp bead 240 is placed in the groove 223, so that the height of the lamp bead 240 can be reduced, the supporting column can be cancelled, and the gap between the glass substrate 220 and the diffusion plate 260 can be reduced, thereby reducing the thickness of the entire display device 100, and the lamp bead 240 placed in the groove 223 can protect the lamp bead 240, avoid the lamp bead 240 sliding on the glass, cause short circuit between the lamp bead 240 and the circuit layer 230, and affect the service life of the lamp bead 240.

[0042] Further, in order to protect the lamp bead 240, a transparent colloid 250 is provided on the light emitting surface of the lamp bead 240, the transparent colloid 250 covers the lamp bead 240, and the height of the transparent colloid 250 decreases from the middle to both sides in the light emitting surface direction, and is arranged in a semicircular shape; specifically, the transparent colloid 250 is formed on the lamp bead 240 by dispensing, the lamp bead 240 is generally a Mini-LED lamp bead 240, the arrangement groove 223 of the Mini-LED lamp bead 240 is etched on the first surface of the glass substrate 220, wiring is performed on the surface of the glass substrate 220 and the groove 223 to connect a plurality of Mini-LED lamp beads 240, the lamp bead 240 is welded or connected on the wiring in the groove 223, so that a Mini-LED lamp plate with partition function can be formed, and the lamp bead 240 is lower than the surface of the glass substrate, then dispensing is performed on the groove 223 to form a dispensing lens, so as to increase the light emitting angle of the lamp bead 240, so that the lamp bead 240 can be protected, and subsequent preparation of the diffusion plate 260 and other optical devices of the display device 100 can avoid direct contact between the diffusion plate 260 and the lamp bead 240, and collision to cause damage to the lamp bead 240.

[0043] Generally, the top height of the transparent colloid 250 is lower than the height of the first surface 221, the diffusion plate 260 is arranged in close contact with the first surface 221 of the glass substrate 220; the lamp bead 240 and the transparent colloid 250 are placed in the groove 223 together, and do not protrude from the first surface 221, the diffusion plate 260 can be directly placed on the surface of the glass substrate, so that the true OD0 is realized, and the MINI ultra-thin module is realized; and because the lamp bead 240 is double-protected by the groove 223 and the transparent colloid 250, the lamp bead 240 can be avoided from being damaged by other structures on the first surface 221 or other structures extruding the transparent colloid 250, the requirements for the operator in the installation of other structures are lower, and the lamp bead 240 is not afraid of being damaged in production and installation; the Mini-LED lamp plate design is also more simple, and there is no need to press the film on the glass substrate 220 or seal the glue on the whole substrate surface or weld the support column on the substrate to protect the lamp bead 240, so that the additional protection design is reduced, time is saved, and cost is saved.

[0044] The diffusion plate 260 is arranged in close contact with the first surface 221 of the glass substrate 220, after the diffusion plate 260 is arranged on the first surface 221, there is no groove 223, and the diffusion plate 260 is directly arranged in close contact without gaps, and in the groove 223, the diffusion plate 260 has a certain gap with the transparent colloid 250 on the lamp bead 240 to dissipate heat; in order to further realize the ultra-thin module, the depth of the groove 223 is L, and the thickness of the lamp bead 240 is D, wherein 0.2mm≤L-D≤0.5mm; generally, the length, width and height of the lamp bead 240 are 0.5mm, the depth and size of the groove 223 are determined according to the size of the lamp bead 240, and the thickness of the glass substrate 220 is limited, so that the thinning of the glass substrate 220 is further realized.

[0045] Further, as shown in Figure 7 The top height of the lamp bead 240 is lower than the height of the first surface 221, the top height of the transparent colloid 250 is higher than the height of the first surface 221, and an inner middle frame is arranged between the glass substrate 220 and the periphery of the diffusion plate 260, the top height of the inner middle frame is higher than the height of the top of the transparent colloid 250; after the groove is dug on the glass substrate 220, the height of the lamp bead 240 can be lowered, and the gap between the diffusion plate 260 and the glass substrate 220 is reduced, so that the overall thickness of the display device 100 is reduced; in order to facilitate the lamp bead 240 to be taken out from the groove 223, the lamp bead 240 or the transparent colloid 250 covering the lamp bead 240 can protrude from the first surface 221, so that the lamp bead 240 can be taken out and replaced more conveniently in subsequent replacement of the lamp bead 240.

[0046] Reference Figure 8 andFigure 9 As shown, as the sixth embodiment of the present application, it is a further refinement of the second embodiment, the backlight module 200 includes an optical film 270, which is arranged on the side of the diffusion plate 260 away from the glass substrate 220, the shape of the optical film 270 is the same as the shape of the diffusion plate 260, the four corners of the optical film 270 are flush with the four corners of the diffusion plate 260; the display device 100 further comprises a display panel 300 and a decorative sealant, the display panel 300 is arranged on the side of the optical film 270 away from the diffusion plate 260, the decorative sealant is arranged around the four corners of the display panel 300 to paste the display panel 300 and the backlight module 200; the second surface 222 of the glass substrate 220 can be used as a decorative surface, a corresponding decorative film layer 290 or a pattern is arranged to realize diversified use of the glass substrate 220.

[0047] Further, the display device 100 includes a front frame 500 and a chip on film 600, the front frame 500 is arranged on the ground side of the display panel 300 for fixing the display panel 300 and the backlight module 200, the chip on film 600 is arranged on the ground side of the display panel 300 and is bent towards the second surface 222 and is attached to the second surface 222, the second surface 222 is an appearance surface, and the second surface 222 is provided with a decorative coating; wherein the front frame 500 includes a side surface 510 and a bottom surface 520, the side surface 510 is perpendicular to the bottom surface 520, the thickness of the bottom surface 520 is greater than the thickness of the side surface 510, the ground side of the display panel 300 is attached to the bottom surface 520 of the front frame 500, and the bottom surface 520 of the front frame 500 is provided with a plurality of hollow structures.

[0048] The glass substrate 220, the diffusion plate 260, the optical film 270 and the display panel 300 are stacked and then the bottom of the display panel 300 is fixed by the front frame 500; in order to avoid gaps between the display panel 300 and the optical film 270 and other structures, the double-sided adhesive 280 is arranged around the periphery of the glass substrate 220 and pastes the optical film 270 and the display panel 300, so that an inner frame is not needed, the manufacturing of the display device 100 is simpler, in addition, the glass substrate 220 of the present application is not only a lamp panel but also a back plate, which saves the preparation of the back plate, reduces the materials for preparing the backlight, saves the installation steps of the back plate, and the sealing strip 400 is arranged around the backlight module 200, which can be used as a decorative edge, not only beautifying the periphery of the backlight module 200, but also making the light generated by the lamp beads 240 inside the display panel 300, without peripheral light leakage.

[0049] It should be noted that a through hole is arranged on the double-sided adhesive tape corresponding to the ground side of the display panel 300, and the through hole is arranged staggered with the hollow structure, which can assist the hollow structure in heat dissipation; the support column 211 is arranged between the diffusion plate 260 and the glass substrate 220, and the number of support columns 211 near the ground side of the display panel is greater than that of support columns 211 on other sides of the display panel, which can strengthen the support effect in the edge area and reduce the excessive compression of the ground side due to the large number of film layers and structures, thereby affecting the box thickness at the edge.

[0050] As shown in Figure 10 the seventh embodiment of the present application is a further improvement of the fourth embodiment described above, the lamp bead 240 is a Mini-LED lamp bead 240, the lamp bead 240 includes red lamp beads 240, green lamp beads 240 and blue lamp beads 240, the thickness of the transparent gel 250 covering the blue lamp bead 240 is less than the thickness of the transparent gel 250 covering the red lamp bead 240 or the green lamp bead 240; the depth of the groove 223 in which the blue lamp bead 240 is placed is less than the depth of the groove 223 in which the red lamp bead 240 or the green lamp bead 240 is placed, and the height difference between the top of the transparent gel 250 on the blue lamp bead 240 and the first surface 221 is less than or equal to the height difference between the top of the transparent gel 250 on the red lamp bead 240 or the green lamp bead 240 and the first surface 221.

[0051] In this embodiment, mainly for the backlight module 200 using color lamp beads 240, considering that the attenuation of blue light is more serious than that of red light and green light, and the loss is larger, if the heights or obstructions of the three color lamp beads 240 are the same, because the blue light attenuates more and the other two colors attenuate less, color yellowing will occur when the three colors are mixed. In order to avoid the occurrence of color yellowing, the distance of blue light reaching the mixing area can be reduced, which can be achieved by reducing the thickness of the transparent gel 250 covering the blue lamp bead 240, that is, the thickness of the transparent gel 250 covering the blue lamp bead 240 is less than the thickness of the transparent gel 250 covering the red lamp bead 240 or the green lamp bead 240; or the depth of the groove 223 in which the blue lamp bead 240 is placed is less than the depth of the groove 223 in which the red lamp bead 240 or the green lamp bead 240 is placed, so that the distance of blue light reaching the mixing area is shortened, part of the loss is reduced, so that the blue light reaches the mixing area, and the red light and green light reach the mixing area, so that the loss is equivalent, thereby avoiding the occurrence of color yellowing when mixing.

[0052] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot list them one by one, so, without conflict, the above described various embodiments or technical features can be combined to form new embodiments, and the combination of each embodiment or technical feature will enhance the original technical effect.

[0053] The technical solution of the present application can be widely used in various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, and MVA (Multi-Domain Vertical Alignment) display panel, which can all be applicable to the above-mentioned solution.

[0054] The above is a further detailed description of the present application in combination with specific optional embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as falling within the scope of protection of the present application.

Claims

1. A display device, characterized in that, The device includes a backlight module and a display panel disposed on the backlight module. The backlight module includes a glass lamp plate and a diffuser plate, which are stacked together. The glass lamp plate includes a glass substrate, a circuit layer disposed on the glass substrate, and LEDs connected to the circuit layer. The diffuser plate is disposed on the light-emitting surface of the LEDs. The backlight module also includes double-sided adhesive, which is disposed around the glass substrate to adhere the glass substrate and the display panel. The display device includes a front frame and a flip-chip film. The front frame is disposed on the ground side of the display panel and is used to fix the display panel and the backlight module. The flip-chip film is disposed on the ground side of the display panel and is bent toward the side of the glass substrate away from the diffuser plate, and is attached to the side of the glass substrate away from the diffuser plate. The front frame includes a side surface and a bottom surface, the side surface and the bottom surface are perpendicular to each other, the thickness of the bottom surface is greater than the thickness of the side surface, the ground side of the display panel is attached to the bottom surface of the front frame, and the bottom surface of the front frame is provided with multiple hollow structures. The double-sided adhesive includes four sides connected end to end. A through hole is provided on the double-sided adhesive corresponding to the ground side of the display panel. The through hole is staggered with the hollow structure. A support column is provided between the diffuser plate and the glass substrate. The number of support columns near the ground side of the display panel is greater than the number of support columns on the other sides of the display panel.

2. The display device as claimed in claim 1, characterized in that, The double-sided adhesive comprises a double-sided adhesive base material and a fiber material, wherein the fiber material is filled in the double-sided adhesive base material. The thickness of the double-sided adhesive is s in the side-facing extension direction of the glass substrate, and the thickness of the glass substrate is d in the direction from the glass substrate toward the diffuser plate, wherein 2mm≤s≤2.6mm and 1.8mm≤d≤3mm.

3. The display device as claimed in claim 1, characterized in that, A support column is provided between the glass substrate and the diffuser plate. The double-sided adhesive is disposed between the glass substrate and the display panel. One end of the double-sided adhesive is bonded to the display panel, and the other end is bonded to the glass substrate. Along the direction from the glass substrate toward the diffuser plate, the height of the double-sided adhesive is higher than the height of the support column and the height of the LED. The double-sided adhesive includes a plastic part and an adhesive material, wherein the adhesive material surrounds the plastic part.

4. The display device as described in claim 2 or 3, characterized in that, The double-sided adhesive includes a first side, a second side, and a third side. The first side is bonded to the display panel, the second side is bonded to the glass substrate, and the third side is perpendicular to the first and second sides. The third side is close to the light mixing cavity formed by the diffuser plate and the glass substrate. A white or yellow ink layer is provided on the third side, and the white or yellow ink layer is doped with diffusion particles.

5. The display device as described in claim 2 or 3, characterized in that, The double-sided adhesive includes a first side, a second side, a third side, and a fourth side. The first side is bonded to the display panel, the second side is bonded to the glass substrate, and the third and fourth sides are perpendicular to the first and second sides, and parallel to each other. The third side is the side closest to the light mixing cavity formed by the diffuser plate and the glass substrate. The double-sided adhesive is also filled with yellow or white particles, and the number of yellow or white particles decreases sequentially along the direction from the third side to the fourth side.

6. The display device as claimed in claim 2 or 3, characterized in that, The double-sided adhesive includes a first side, a second side, a third side, and a fourth side. The first side is bonded to the display panel, the second side is bonded to the glass substrate, and the third and fourth sides are perpendicular to the first and second sides, and parallel to each other. The third side is the side closest to the light mixing cavity formed by the diffuser plate and the glass substrate, and the fourth side is flush with the side of the diffuser plate and the glass substrate. The double-sided adhesive covers the edge of the glass substrate, and a cutout is provided at the position of the LED beads corresponding to the edge of the glass substrate.

7. The display device as claimed in claim 1, characterized in that, The backlight module includes an optical film disposed on the side of the diffuser plate away from the glass substrate. The shape of the optical film is the same as that of the diffuser plate, and the periphery of the optical film is flush with the periphery of the diffuser plate. The display device further includes a display panel and a decorative sealant. The display panel is disposed on the side of the optical film away from the diffuser plate, and the decorative sealant is disposed around the display panel to adhere the display panel and the backlight module.

8. The display device as claimed in claim 7, characterized in that, The glass substrate has a decorative film layer on the side away from the diffuser plate.

9. The display device as claimed in claim 6, characterized in that, The LED beads are Mini-LED LED beads, including red, green and blue LED beads. The thickness of the transparent colloid covering the blue LED bead is less than the thickness of the transparent colloid covering the red or green LED bead. The height difference between the top of the transparent colloid on the blue LED bead and the height of the diffuser plate is greater than or equal to the height difference between the top of the transparent colloid on the red or green LED bead and the height of the diffuser plate. In particular, along the direction from the glass substrate toward the diffuser plate, the top height of the transparent colloid covering the red, green, and blue LED beads is all less than the height of the double-sided adhesive.

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