CN114265239A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN114265239A CN114265239A CN202111627709.0A CN202111627709A CN114265239A CN 114265239 A CN114265239 A CN 114265239A CN 202111627709 A CN202111627709 A CN 202111627709A CN 114265239 A CN114265239 A CN 114265239A
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- guide plate
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- 239000011324 bead Substances 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims description 23
- 239000012788 optical film Substances 0.000 claims description 6
- 239000010408 film Substances 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application discloses a backlight module and a display device, which comprise a back plate, a lamp panel and a light guide plate, wherein the back plate comprises a side plate and a main plate, and the side plate and the main plate are arranged vertically; the lamp panel is mounted on a side plate of the backboard, and a limiting part and a lamp bead are arranged on the lamp panel; the light guide plate is arranged corresponding to the main board of the back plate, and the light guide plate is provided with a clamping part matched with the limiting part; wherein, the light guide plate is fixed on the lamp plate, just the lamp pearl with the light guide plate aligns, and the clearance through control light guide plate and lamp plate is at acceptable within range, improves because of the too big problem that produces bad phenomena such as dark line or bright line in clearance between light guide plate and the lamp plate.
Description
Technical Field
The application relates to the technical field of display, in particular to a backlight module and a display device.
Background
A Liquid Crystal Display (LCD) is a commonly used flat panel Display at present, a backlight module is an important component of the LCD, and is used to provide a Light source for a Liquid Crystal panel when the LCD works, and with the progress of LED technology, a high power LED (Light Emitting Diode) is gradually applied to a backlight.
The backlight module is divided into a side-in type backlight module and a direct type backlight module according to different incident positions of the light source. The direct type backlight module is characterized in that an LED is arranged behind a liquid crystal panel to directly form a surface light source to be provided for the liquid crystal panel; the side-in backlight module is formed by arranging a plurality of LED lamps of the backlight module at the edge of a back Plate at the rear side of a liquid crystal panel, wherein Light rays emitted by a plurality of LED lamp panels enter a Light Guide Plate (LGP) from a Light incident surface at one side of the LGP, are reflected and diffused and then are emitted from a Light emitting surface of the LGP, and then pass through an optical film group to form a surface Light source to be provided for the liquid crystal panel.
Among the side income formula backlight unit, need leave the space between light guide plate and the LED lamp plate, it is usually directly to paste the LED lamp plate on the backplate wall, rethread backplate and the cooperation of gluing the frame, it is fixed with the light guide plate extrusion to set up the protrusion on the frame to glue, in order to realize the relatively fixed of light guide plate and lamp plate, this fixed mode need strictly be controlled the backplate and the assembly clearance of gluing the frame, it is too big to appear the clearance between light guide plate and the lamp plate easily, lamp pearl on light guide plate and the lamp plate is not alignd, thereby produce bad phenomena such as dark line or bright line, influence display effect.
Disclosure of Invention
The utility model aims at providing a backlight module and display device, the clearance through control light guide plate and lamp plate is in acceptable range, improves because of the too big problem that leads to producing bad phenomena such as dark line or bright line in clearance between light guide plate and the lamp plate.
The application discloses a backlight module, which comprises a back plate, a lamp panel and a light guide plate, wherein the back plate comprises a side plate and a main plate, and the side plate and the main plate are arranged vertically; the lamp panel is mounted on a side plate of the backboard, and a limiting part and a lamp bead are arranged on the lamp panel; the light guide plate is arranged corresponding to the main board of the back plate, and the light guide plate is provided with a clamping part matched with the limiting part; wherein, the joint portion of light guide plate with during the spacing portion cooperation of lamp plate, the lamp pearl with the light guide plate aligns.
Optionally, the spacing portion includes the spacing groove, joint portion includes the lug, the one side that the light guide plate is close to the lamp plate is first side, the lug protrusion in first side sets up, the lug card is gone into in the spacing inslot with the restriction the lamp plate with the position of light guide plate.
Optionally, the spacing groove is equipped with two, two the spacing groove sets up respectively the both ends that the lamp plate kept away from each other, the lug is equipped with two, two the lug is with two the spacing groove joint.
Optionally, a through groove is formed in the side plate of the back plate, the through groove is arranged corresponding to the limiting groove, and the lug penetrates through the limiting groove and extends into the through groove and is respectively clamped with the limiting groove and the through groove.
Optionally, backlight unit still includes the spacer, the spacer sets up the lamp plate is close to between the one side and the first side of first side, the spacer is close to the one side of first side arrives the distance of the first side of light guide plate is less than the lamp pearl is close to the one side of first side arrives the distance of the first side of light guide plate.
Optionally, the spacer includes the elastic component, the elastic component with lamp plate fixed connection.
Optionally, the backlight module further comprises a rubber frame, the rubber frame is matched with the back plate, a rubber stopper is mounted on the rubber frame, the rubber stopper corresponds to the through groove, and the rubber stopper is abutted to the lug.
Optionally, backlight unit still includes optics diaphragm, reflective membrane and reflector plate, optics diaphragm sets up the light guide plate is kept away from one side of mainboard, the reflector plate sets up the light guide plate is close to one side of mainboard, it includes the main part to glue the frame, the main part with mainboard parallel arrangement, reflective membrane is attached just on the main part reflective membrane part projection on the vertical direction with the lamp plate coincidence.
Optionally, a positioning portion is arranged on the side plate, the positioning portion is arranged at one end of the side plate and protrudes out of the side plate towards the first side face, and the positioning portion is abutted to one end of the lamp panel.
The application also discloses a display device, which comprises a display panel and the backlight module.
This application is through setting up spacing portion on the lamp plate, set up joint portion on the light guide plate, spacing portion and the mutual joint of joint portion, so that the position relatively fixed of light guide plate and lamp plate, lamp pearl on the lamp plate aligns with the middle part of light guide plate, and the clearance control of light guide plate and lamp plate is in acceptable within range, for the scheme that uses the backplate and glue the cooperation of frame to realize light guide plate and lamp plate relatively fixed, the degree of difficulty in the clearance of restriction light guide plate and lamp plate has been reduced, thereby the problem of harmful phenomena such as dark line or bright line has been improved and has been leaded to producing because of the clearance between light guide plate and the lamp plate is too big.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is an exploded view of an overall structure of a backlight module according to a first embodiment of the present application;
fig. 2 is a schematic structural view of a light guide plate according to a second embodiment of the present application;
fig. 3 is a schematic structural view of a light guide plate and a lamp panel in a second embodiment of the present application;
FIG. 4 is an enlarged view at A in FIG. 3 of the present application;
fig. 5 is a schematic structural view of a rubber frame according to a third embodiment of the present application;
FIG. 6 is an enlarged view at B in FIG. 5 of the present application;
FIG. 7 is a schematic structural view of a back plate of a third embodiment of the present application;
FIG. 8 is an enlarged view at C of FIG. 7 of the present application;
FIG. 9 is an enlarged view at D of FIG. 7 of the present application;
fig. 10 is a partial sectional view along the length direction of a light guide plate in the third embodiment of the present application;
fig. 11 is a schematic structural diagram of a display device according to a fourth embodiment of the present application.
100, a back plate; 110. a main board; 120. a side plate; 121. a positioning part; 122. a through groove; 200. a lamp panel; 210. a limiting part; 211. a limiting groove; 220. a lamp bead; 300. a light guide plate; 310. a clamping part; 311. a lug; 320. a first side surface; 400. a spacer; 500. a rubber frame; 510. a main body portion; 520. a side edge; 600. a rubber stopper; 700. a light-reflecting membrane; 800. a backlight module; 810. an optical film; 820. a reflective sheet; 900. a display device; 910. a display panel.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "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, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application will now be described in detail with reference to the drawings and alternative embodiments, it being understood that any combination of the various embodiments or technical features described below may form new embodiments without conflict.
As shown in fig. 1, as the first embodiment of this application, a backlight module 800 is disclosed, backlight module 800 includes backplate 100, lamp plate 200 and light guide plate 300, backplate 100 includes curb plate 120 and mainboard 110, curb plate 120 and mainboard 110 mutually perpendicular set up, lamp plate 200 installs on the curb plate 120 of backplate 100, be equipped with spacing portion 210 and lamp pearl 220 on the lamp plate 200, light guide plate 300 with the corresponding setting of mainboard 110 of backplate 100, be equipped with on the light guide plate 300 with spacing portion 210 assorted joint portion 310, the joint portion 310 of light guide plate 300 with during the cooperation of spacing portion 210 of lamp plate, lamp pearl 220 with light guide plate 300 aligns.
When the backlight module 800 is assembled, the lamp panel 200 is fixed on the side plate 120 of the back plate 100 by means of bonding and the like, the clamping portion 310 of the light guide plate 300 corresponds to the limiting portion 210 on the lamp panel, and then the clamping portion 310 is fixedly connected with the limiting portion 210 so as to relatively fix the light guide plate 300 and the lamp panel 200 and limit the size of a gap between the light guide plate 300 and the lamp panel 200, the lamp beads 220 are aligned with the light guide plate 300, and the gap between the light guide plate 300 and the lamp panel 200 is within an acceptable range, so that the problem of undesirable phenomena such as dark lines or bright lines caused by the excessive gap between the light guide plate 300 and the lamp panel 200 is solved;
in this embodiment, the position of the limiting portion 210 on the lamp panel corresponds to the position of the lamp bead 220, so that when the light guide plate 300 is fixed on the lamp panel 200, the lamp bead 220 can be aligned with the light guide plate 300, and further the gap between the light guide plate 300 and the lamp panel 200 is controlled;
generally speaking, the limiting part 210 is arranged on the lamp panel 200, the clamping part 310 is arranged on the light guide plate 300, and the light guide plate 300 and the clamping part 310 are fixedly connected through the limiting part 210 and the clamping part 310, so that the light guide plate 300 and the lamp panel 200 are relatively fixed, the lamp beads 220 are aligned with the light guide plate 300, the gap between the light guide plate 300 and the lamp panel 200 is also controlled within an acceptable range, and compared with a scheme of using the backboard 100 and the rubber frame 500 to realize the relative fixation of the light guide plate 300 and the lamp panel 200, the difficulty of limiting the gap between the light guide plate 300 and the lamp panel 200 is reduced, so that the problem of generating bad phenomena such as dark lines or bright lines and the like due to the excessive gap between the light guide plate 300 and the lamp panel 200 is solved, wherein the acceptable range of the gap between the light guide plate 300 and the lamp panel 200 is that the gap between the center of the light guide plate 300 and the center of the lamp beads 220 is between 0.1 and 0.5mm, namely the problem of generating bright lines or dark lines of the display device 900 using the backlight module 800 can be avoided, if the distance between the center of the light guide plate 300 and the center of the lamp bead 220 exceeds 0.5mm, there is a possibility that a problem of a bright line or a dark line may occur.
Fig. 2 is a schematic structural diagram of a light guide plate according to a second embodiment of the present application, fig. 3 is a schematic structural diagram of a light guide plate and a lamp plate according to the second embodiment of the present application, fig. 4 is an enlarged view of a position a in fig. 3 of the present application, as shown in fig. 2 to 4, as a second embodiment of the present application, it is a refinement of the first embodiment of the present application, and discloses a backlight module 800, the position-limiting portion 210 includes a position-limiting groove 211, the engaging portion 310 includes a lug 311, one surface of the light guide plate 300 close to the lamp plate 200 is a first side surface 320, the lug 311 protrudes from the first side surface 320, the lug 311 is engaged in the position-limiting groove 211 to limit the positions of the lamp plate 200 and the light guide plate 300, in this embodiment, the position-limiting grooves 211 are two, the two position-limiting grooves 211 are respectively disposed at two ends of the lamp plate 200 far away from each other, the lug 311 is two, the two lugs 311 and the two limiting grooves 211 are correspondingly clamped with each other one by one to fix the light guide plate 300 and the light panel 200 relatively, wherein the number of the limiting grooves 211 and the more lugs 311 may be provided, and a designer may select how many lugs 311 and limiting grooves 211 need to be designed for limiting and fixing according to the size of the backlight module 800, in this embodiment, only two lugs 311 and two limiting grooves 211 are taken as an example for description, but not limited thereto, and meanwhile, the positions of the two lugs 311 and the two limiting grooves 211 may not be set apart from each other, in this embodiment, the positions of the two lugs 311 and the two limiting grooves 211 are set apart from each other, so as to avoid the need of redesigning the positions of the lamp beads 220 by the light panel 200, if the positions of the lugs 311 and the limiting grooves 211 need to be changed, then need to carry out corresponding adjustment to the position of lamp pearl 220 can, specific here does not need to be repeated, and the designer can design according to actual demand.
When the backlight module 800 is assembled, the lamp panel 200 is fixed on the side plate 120 of the back plate 100 by bonding, then, the lugs 311 of the light guide plate 300 correspond to the limiting grooves 211 on the lamp panel 200, the lugs 311 of the light guide plate 300 are clamped into the limiting grooves 211 of the lamp panel 200, so that the light guide plate 300 and the lamp panel 200 are relatively and fixedly connected, two lugs 311 and two limiting grooves 211 are respectively and correspondingly arranged, and after the light guide plate 300 and the lamp panel 200 are connected through the lugs 311 and the limiting grooves 211, the two lugs 311 of the light guide plate 300 are respectively clamped into the two limiting grooves 211 of the lamp panel, which are far away from each other;
generally speaking, the lugs 311 are clamped with the limiting grooves 211 to relatively fix the light guide plate 300 and the lamp panel 200, and other components are not needed to fix the light guide plate 300 and the lamp panel 200, and meanwhile, the light guide plate 300 is fixed with the lamp panel 200 in a clamping manner, so that the light guide plate 300 or the lamp panel 200 is convenient to detach, and therefore the light guide plate 300 or the lamp panel 200 is replaced or repaired, for example, when the lamp beads 220 on the lamp panel 200 are damaged, the lugs 311 are separated from the limiting grooves 211 to separate the light guide plate 300 from the lamp panel 200, the light guide plate 300 can be easily separated from the lamp panel 200 to replace the lamp panel 200 or the damaged lamp beads 220, and the light guide plate 300 and the lamp panel 200 are convenient to detach;
in addition, the size of the lug 311 in this embodiment is matched with the size of the limit groove 211, so that after the lug 311 is clamped into the limit groove 211, the lug 311 is fixed with the limit groove 211 without shaking, thereby preventing the lug 311 and the limit groove 211 from being damaged when the backlight module 800 is impacted or impacted, and preventing the lug 311 from being broken, wherein the height of the lug 311 is the same as the height of the light guide plate 300, the width of the limit groove 211 is the same as the height of the lug 311, and the middle of the limit groove 211 and the middle of the bead 220 on the lamp panel 200 are on the same horizontal line; the limiting groove 211 may be formed by enclosing upper, lower, left and right groove walls, as shown in fig. 8; or the groove walls of the upper side and the lower side of the limit groove 211 extend to the outside of the lamp panel to communicate the limit groove 211 with the outside, as shown in fig. 9.
The backlight module 800 further includes a spacer 400, the spacer 400 is disposed between one side of the lamp panel 200 close to the first side surface 320 and the first side surface 320, a distance from one side of the spacer 400 close to the first side surface 320 of the light guide plate 300 is smaller than a distance from one side of the lamp bead 220 close to the first side surface 320 of the light guide plate 300, when the light guide plate 300 and the lamp panel 200 are fixedly connected to each other, one end of the spacer 400 contacts the lamp panel 200, the other end of the spacer 400 abuts against the first side surface 320 of the light guide plate 300, the light guide plate 300 and the lamp panel 200 are separated by the spacer 400, a gap between the lamp panel 200 and the light guide plate 300 can be controlled by selecting a width of the spacer 400, so that when the light guide plate 300 is connected to the lamp panel 200, the gap between the light guide plate 300 and the lamp panel 200 is not too small, therefore, the situation that the lamp beads 220 or the light guide plate 300 are damaged due to extrusion caused by contact between the lamp beads 220 and the light guide plate 300 because the lamp beads 220 on the lamp plate 200 are high in temperature due to long working time and because the gap between the light guide plate 300 and the lamp plate 200 is small when the lamp beads 220 deform is avoided; in this embodiment, spacer 400 can be the elastic component, for example can be the rubber block, and the rubber block has elasticity, and light guide plate 300 and lamp plate 200 can not receive the harm when contacting with the rubber block, and the rubber block has certain heat resistance, can not produce deformation because of the heat that lamp pearl 220 during operation gived off, in addition, spacer 400 also can be other elastic components, for example bubble cotton etc. during installation spacer 400, can directly use glue to bond spacer 400 to lamp plate 200, perhaps set up a holding tank on lamp plate 200, put into the holding tank with spacer 400 again and install with lamp plate 200, do not have here specifically to describe repeatedly.
Of course, the spacer 400 may be installed on not only the lamp panel 200 but also the light guide plate 300, and when the spacer 400 is installed on the light guide plate, the spacer 400 is directly adhered to the first side surface 320 by using glue.
Fig. 5 is a schematic structural view of a rubber frame according to a third embodiment of the present application, fig. 6 is an enlarged view of a position B in fig. 5 of the present application, fig. 7 is a schematic structural view of a back plate according to a third embodiment of the present application, fig. 8 is an enlarged view of a position C in fig. 7 of the present application, fig. 9 is an enlarged view of a position D in fig. 7 of the present application, fig. 10 is a partial sectional view along a length direction of a light guide plate according to the third embodiment of the present application, as shown in fig. 5 to 10, as the third embodiment of the present application, unlike the second embodiment of the present application, a backlight module 800 is disclosed, in which a positioning portion 121 is provided on a side plate 120 of a back plate 100, the positioning portion 121 is provided on one end of the side plate 120 and faces the first side surface 320, the positioning portion 121 abuts against one end of a lamp panel 200, in this embodiment, the positioning portion 121 includes a limit protrusion, the limiting protrusion is located at one end of the side plate 120 and is perpendicular to the side plate 120, as shown in fig. 9, when the lamp panel 200 is adhesively mounted on the backboard 100, one end of the lamp panel 200 is firstly abutted against the limiting protrusion to limit the position of the lamp panel 200 mounted on the backboard 100, the lamp panel 200 is pre-positioned, and then the lamp panel 200 is adhesively mounted on the backboard 100; when the lamp panel 200 is installed, the lamp panel 200 is pre-positioned through the limiting protrusions so as to limit the position of the lamp panel 200 installed on the backboard 100, compared with the case that the lamp panel 200 is directly adhered to the backboard 100, the operation is simple, and the installation speed of the lamp panel 200 is improved; the limiting protrusion is formed by bending the upper and lower ends of the side plate 100 toward the display panel 910 by 90 degrees, and the limiting groove 211 penetrates through the limiting protrusion, as shown in fig. 9.
A through groove 122 is arranged on the side plate 120 of the back plate 100, the position of the through groove 122 is arranged corresponding to the position of the limiting groove 211, when the light guide plate 300 is fixed to the lamp panel 200, the lugs 311 pass through the limiting grooves 211 and extend into the through grooves 122, and are respectively engaged with the limiting grooves 211 and the through grooves 122, so as to prevent the damage to the lug 311 caused by the lug 311 directly contacting the side plate 120 of the back plate 100 when the lug 311 is fixed with the limiting groove 211, which results in poor fixing effect of the light guide plate 300 and the lamp panel 200, thereby reducing the service life of the display using the backlight module 800, and at the same time, a through groove 122 corresponding to the limiting groove 211 is provided on the side plate 120 of the back plate 100, and when the lamp panel 200 is adhered, the lamp panel 200 is assisted in positioning, so that the lamp panel 200 can be bonded more accurately.
Certainly, in order to protect the lug 311 from being damaged when the lug 311 is impacted by external force during use, an elastic stopper is disposed on a groove wall of the through groove 122, the lug 311 passes through the limiting groove 211 and extends into the through groove 122, and when the lug 311 is fastened with the through groove 122, a gap of the elastic stopper is disposed between the lug 311 and the groove wall of the through groove 122, and the lug 311 does not directly contact with the groove wall of the through groove 122, so that when the backlight module 800 is impacted by external force, the lug 311 shakes and contacts with the groove walls of the limiting groove 211 and the through groove 122 to damage the lug 311, wherein two elastic stoppers may be disposed, and the two elastic stoppers may be disposed on the groove wall of one side where the through grooves 122 are close to each other.
In this embodiment, the size of the through groove 122 may be larger than the size of the limiting groove 211, so as to avoid that when the lamp panel is installed, the limiting groove 211 and the through groove 122 are not installed correspondingly, resulting in the limiting groove 211 and the through groove 122 being dislocated, the lug 311 and the limiting groove 211 and the through groove 122 are contacted, causing damage to the lug 311, resulting in the fracture of the lug 311, and the light guide plate 300 and the lamp panel 200 are separated and fall off, resulting in the failure of the normal use of the backlight module 800.
The backlight module 800 further includes a rubber frame 500, the rubber frame 500 is disposed in cooperation with the back plate 100, a rubber stopper 600 is mounted on the rubber frame 500, the rubber stopper 600 is disposed in correspondence with the through groove 122 and the limiting groove 211, when the light guide plate 300 is fixedly connected to the light plate 200, the lug 311 passes through the limiting groove 211 and extends into the through groove 122, and is respectively engaged with the limiting groove 211 and the through groove 122, and abuts against the rubber stopper 600, so as to prevent the lug 311 from directly contacting the rubber frame 500 to damage the lug 311 when the lug 311 is mounted, in this embodiment, the through groove 122 passes through the side plate 120, the through groove 122 may not pass through the side plate 120, and when the through groove 122 does not pass through the side plate 120, the rubber stopper 600 may be disposed at the groove bottom of the through groove 122, so that the lug 311 abuts against the rubber stopper 600 to protect the lug 311.
The backlight assembly 800 further includes an optical film 810, a reflective film 700 and a reflective sheet 820, the optical film 810 is disposed on a side of the light guide plate 300 away from the main board 110, the reflective sheet 820 is disposed at a side of the light guide plate 300 adjacent to the main plate 110, the plastic frame 500 includes a main body 510 and a side 520, the main body 510 is parallel to the main board 110, the side edge 520 is parallel to the side plate 120 and is located on one side of the side plate 120 far away from the lamp panel 200, the reflective membrane 700 is attached to the main body 510, and a part of the projection of the reflective membrane 700 in the vertical direction coincides with the lamp panel 200, thereby reflecting the light emitted from the lamp panel 200 to make the light incident into the light guide plate 300 again, the utilization rate of the light rays diffused by the lamp panel 200 in the backlight module 800 is enhanced, and the light ray display effect of the backlight module 800 is improved.
Fig. 11 is a schematic structural diagram of a display device according to a fourth embodiment of the present application, and as shown in fig. 11, as a fourth embodiment of the present application, a display device is disclosed, where the display device 900 includes a display panel 910 and the backlight module 800 described above.
It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A backlight module, comprising:
the back plate comprises a side plate and a main plate, and the side plate and the main plate are perpendicular to each other;
the lamp panel is installed on the side plate of the backboard, and the lamp panel is provided with a limiting part and a lamp bead; and
the light guide plate is arranged corresponding to the main board of the back plate, and the light guide plate is provided with a clamping part matched with the limiting part;
wherein, the joint portion of light guide plate with during the spacing portion cooperation of lamp plate, the lamp pearl with the light guide plate aligns.
2. The backlight module according to claim 1, wherein the limiting portion comprises a limiting groove, the clamping portion comprises a lug, one surface of the light guide plate close to the light plate is a first side surface, the lug protrudes out of the first side surface, and the lug is clamped into the limiting groove to limit the position of the light plate and the light guide plate.
3. The backlight module according to claim 2, wherein there are two limiting grooves, the two limiting grooves are respectively disposed at two ends of the lamp panel, which are away from each other, and there are two lugs, and the two lugs are engaged with the two limiting grooves.
4. The backlight module as claimed in claim 2, wherein a through groove is formed on the side plate of the back plate, the through groove is disposed corresponding to the position of the position-limiting groove, and the lug passes through the position-limiting groove and extends into the through groove, and is engaged with the position-limiting groove and the through groove respectively.
5. The backlight module according to claim 2, further comprising a spacer disposed between a surface of the lamp panel near the first side surface and the first side surface, wherein a distance from a surface of the spacer near the first side surface to the first side surface of the light guide plate is smaller than a distance from a surface of the lamp bead near the first side surface to the first side surface of the light guide plate.
6. The backlight module as claimed in claim 5, wherein the spacer comprises an elastic member, and the elastic member is fixedly connected with the lamp panel.
7. The backlight module according to claim 4, further comprising a rubber frame, wherein the rubber frame is disposed in cooperation with the back plate, a rubber stopper is mounted on the rubber frame, the rubber stopper is disposed corresponding to the through groove, and the rubber stopper abuts against the protruding lug.
8. The backlight module according to claim 7, further comprising an optical film, a reflective film and a reflector, wherein the optical film is disposed on one side of the light guide plate away from the main board, the reflector is disposed on one side of the light guide plate close to the main board, the rubber frame comprises a main body portion, the main body portion is parallel to the main board, the reflective film is attached to the main body portion, and partial projection of the reflective film in the vertical direction coincides with the lamp panel.
9. The backlight module according to claim 1, wherein the side plate is provided with a positioning portion, the positioning portion is arranged at one end of the side plate and protrudes out of the side plate towards the first side face, and the positioning portion is abutted against one end of the lamp panel.
10. A display device comprising a display panel and a backlight module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111627709.0A CN114265239A (en) | 2021-12-28 | 2021-12-28 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111627709.0A CN114265239A (en) | 2021-12-28 | 2021-12-28 | Backlight module and display device |
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| CN114265239A true CN114265239A (en) | 2022-04-01 |
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| CN202111627709.0A Pending CN114265239A (en) | 2021-12-28 | 2021-12-28 | Backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115113439A (en) * | 2022-08-23 | 2022-09-27 | 惠科股份有限公司 | Backlight module and display device |
Citations (9)
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