CN113031342A - Support frame, straight following formula backlight unit and display device - Google Patents
Support frame, straight following formula backlight unit and display device Download PDFInfo
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- CN113031342A CN113031342A CN202110290697.0A CN202110290697A CN113031342A CN 113031342 A CN113031342 A CN 113031342A CN 202110290697 A CN202110290697 A CN 202110290697A CN 113031342 A CN113031342 A CN 113031342A
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- 239000012788 optical film Substances 0.000 claims abstract description 21
- 239000011111 cardboard Substances 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application discloses a support frame, a direct type backlight module and a display device, relates to the technical field of display, and aims to solve the problem that the height adjusting efficiency of the support frame in the related technology is low. The support frame is used for supporting the optical diaphragm and comprises a base and a support piece, wherein a plurality of clamping grooves which are arranged along the height direction of the support frame are formed in the outer surface of the base; the support piece includes cardboard and supporter, and along the direction of height of support frame, the supporter is fixed in one side of cardboard, and the one end that the cardboard was kept away from to the supporter is for supporting the end, and the cardboard can insert respectively in every draw-in groove to adjust the distance that supports the end protrusion base. The application can be used for supporting the optical film.
Description
Technical Field
The application relates to the technical field of display, especially, relate to a support frame, straight following formula backlight unit and display device.
Background
The backlight module is divided into a direct type backlight module and an edge type backlight module according to the position of the light source. Generally, a direct type backlight module generally includes a back plate, a light source, an optical film, and the like, where the optical film is disposed on a light-emitting side of the light source, and a support frame is required to support the optical film in order to prevent the optical film from bending and deforming and affecting a light mixing effect of the backlight module.
The structure of the support frame is designed to ensure the support effect of the optical film.
Disclosure of Invention
The embodiment of the application provides a support frame, a direct type backlight module and a display device, and aims to solve the problem that the height adjusting efficiency of the support frame in the related art is low.
In order to achieve the above object, in a first aspect, an embodiment of the present application provides a supporting frame for supporting an optical film, including a base and a supporting member, where a plurality of slots arranged along a height direction of the supporting frame are formed on an outer surface of the base; the support comprises a clamping plate and a support body, the support body is fixed on one side of the clamping plate along the height direction of the support frame, one end, far away from the clamping plate, of the support body is a support end, and the clamping plate can be respectively inserted into each clamping groove so as to adjust the distance between the support end and the base.
In some embodiments, the outer surface of the base includes a base end surface and a plurality of base side surfaces located at edges of the base end surface, and the plurality of card slots are opened on the base side surfaces.
In some embodiments, an avoiding groove communicated with each of the clamping grooves is formed in the end surface of the base, the length direction of the avoiding groove is parallel to the depth direction of the clamping groove, and one end of the avoiding groove penetrates through the side surface of the base provided with the clamping groove; when the clamping plate is inserted into the clamping groove, the support body extends out of the end face of the base from the avoiding groove.
In some embodiments, a limiting part is arranged at the notch of the clamping groove; when the clamping plate is inserted into the clamping groove, the clamping plate is located between a first groove wall and the limiting portion, and the first groove wall is the groove wall at one end, far away from the notch, of the clamping groove.
In some embodiments, an elastic protrusion is arranged at the edge of the clamping plate, a limiting hole is arranged on the groove wall of the clamping groove, and the depth direction of the limiting hole is perpendicular to the height direction of the supporting frame; when the clamping plate is located between the first groove wall and the limiting part, the elastic protrusions extend into the limiting holes, and the two ends of the elastic protrusions are abutted against the hole walls of the limiting holes along the height direction of the supporting frame, so that the clamping plate and the base are relatively fixed.
In some embodiments, an avoiding space for the elastic protrusion to deform in the hole depth direction of the limiting hole is formed between the elastic protrusion and the clamping plate.
In some embodiments, the elastic protrusions are respectively disposed at two side edges of the clamping plate along a first direction, the position-limiting holes are respectively disposed on two opposite side groove walls of the clamping groove, and the first direction is a direction perpendicular to a groove depth direction of the clamping groove and a thickness direction of the clamping plate; when the clamping plate is positioned between the first groove wall and the limiting part, the elastic bulges positioned at the edges of two sides of the clamping plate respectively extend into the corresponding limiting holes.
In some embodiments, the front end of the clamping plate is provided with a first chamfer along the direction in which the clamping plate is inserted into the clamping groove.
In some embodiments, the notch of the slot is elongated, and the extending direction of the notch is perpendicular to the height direction of the supporting frame. And/or the support body is plate-shaped, and a second chamfer is arranged at one end of the support body, which is far away from the clamping plate.
In a second aspect, an embodiment of the present application provides a direct type backlight module, including a back plate, an optical film, and the support frame in the first aspect, where the back plate encloses a placing cavity having an opening on one side, and the placing cavity includes a cavity bottom wall opposite to the opening, and a cavity side wall disposed at a periphery of the cavity bottom wall; the optical film is arranged at the opening; the base of the support frame is arranged on the cavity bottom wall, and the support piece of the support frame is abutted to the optical diaphragm.
In a third aspect, an embodiment of the present application provides a display device, including a display panel and the direct type backlight module of the second aspect, where the display panel is located on one side of the direct type backlight module.
The embodiment of the application provides a support frame, straight following formula backlight unit and display device, when adjusting the height of support frame, extract support piece's cardboard from initial draw-in groove, then insert the target draw-in groove in, just can adjust the distance that supports the end protrusion base, and then realize adjusting the height of support frame. Because the clamping groove on the base is arranged on the outer surface of the base, the position relation between the clamping plate and the clamping groove can be conveniently and clearly seen by an operator, and the operator can accurately and quickly insert the clamping plate into the target clamping groove to complete the height adjustment of the support frame, so that the height adjustment efficiency of the support frame is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a display device according to some embodiments of the present disclosure;
FIG. 2 is a schematic view of a direct type backlight module according to some embodiments of the present disclosure;
FIG. 3 is a perspective view of the direct type backlight module shown in FIG. 2;
FIG. 4 is a schematic structural diagram of a supporting frame in the related art;
FIG. 5 is a schematic view of a support stand according to some embodiments of the present disclosure;
FIG. 6 is a schematic structural diagram of a base of the support stand of FIG. 5;
FIG. 7 is a view of the side of the base of FIG. 6 with a slot formed therein;
FIG. 8 is a schematic structural view of the support member of FIG. 5;
FIG. 9 is a front view of FIG. 8;
FIG. 10 is a top view of the support member of FIG. 9;
FIG. 11 is a cross-sectional view A-A of the base of FIG. 5 at one perspective;
fig. 12 is a cross-sectional view a-a of the base of fig. 5 from another perspective.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Fig. 1 is a schematic structural diagram of a display device according to some embodiments of the present disclosure, as shown in fig. 1. The display device includes a housing 100, a direct-type backlight module 200, a display panel 300 and a cover plate 400, wherein the direct-type backlight module 200 is disposed in the housing 100, the display panel 300 is disposed on one side (i.e., light-emitting side) of the direct-type backlight module 200, and the cover plate 400 is disposed on the display side of the display panel 300 to protect the display panel 300.
The display device may be a mobile phone, a tablet computer, a liquid crystal television, an advertisement screen, and the like, and is not limited specifically herein.
Fig. 2 and 3 are schematic structural views of a direct type backlight module 200 according to some embodiments of the present disclosure, and fig. 3 is a perspective view of the direct type backlight module 200 shown in fig. 2. The direct-type backlight module 200 includes a back plate 1, an optical film 2, a light emitting device 4 and a supporting frame 3.
The back plate 1 encloses a placing cavity 11 with an opening 12 on one side, the placing cavity 11 comprises a cavity bottom wall 13 opposite to the opening 12 and a cavity side wall 14 arranged at the periphery of the cavity bottom wall 13, the optical film 2 is arranged at the opening 12, and the optical film 2 is one or more of a diffusion sheet, a prism sheet and a brightness enhancement film.
The number of the light emitting elements 4 is plural, and the plural light emitting elements 4 are provided on the chamber bottom wall 13 of the placing chamber 11. For example, as shown in fig. 3, the number of the Light Emitting elements 4 is 4, and each Light Emitting element 4 is an LED (Light-Emitting Diode) Light bar.
The supporting frame 3 is disposed between the cavity bottom wall 13 and the optical film 2, and is used for supporting the optical film 2 to prevent the optical film 2 from deforming.
The number of the support frames 3 can be provided with a plurality of rows, and each row comprises a plurality of support frames 3, so that the optical membrane 2 can be better supported. As an example, as shown in fig. 3, the support frames 3 are arranged in 3 rows, and each row includes 3 support frames 3.
As shown in fig. 4, fig. 4 is a schematic structural diagram of a supporting frame 3 in the related art. The support 3 comprises a base 31 and a support 32, the base 31 being intended to be mounted on the cavity bottom wall 13, the support 32 being intended to abut against the optical membrane 2.
The base 31 is provided with a mounting hole 311, the mounting hole 311 extends along the height direction H of the supporting frame 3, and the wall of the mounting hole 311 is provided with a plurality of mounting ring grooves 3111 at intervals along the height direction H of the supporting frame 3; the hole wall of the mounting hole 311 is further provided with an adjusting groove, and the adjusting groove extends along the height direction H of the support frame 3 and is communicated with each mounting ring groove 3111.
The supporting member 32 is cylindrical, a plurality of mounting protrusions 321 are spaced from each other on the sidewall of the supporting member 32 along the height direction H of the supporting frame 3, the plurality of mounting protrusions 321 are located on the same bus on the sidewall of the supporting member 32, the supporting member 32 is inserted into the mounting hole 311, and the mounting protrusions 321 are matched with the mounting ring groove 3111.
When the supporting frame 3 is installed in the direct type backlight modules of different models, since the light mixing distances (the distance between the cavity bottom wall 13 and the optical film 2) of the direct type backlight modules of different models are different, the height of the supporting frame 3 needs to be adjusted, when the height of the supporting frame 3 is adjusted, the supporting member 32 is rotated, the installation protrusion 321 on the side wall of the supporting member 32 slides along the initial installation ring groove 3111, when the installation protrusion 321 slides to the position of the adjustment groove, the supporting member 32 is moved along the height direction H of the supporting frame 3, so that the installation protrusion 321 slides along the adjustment groove, so as to adjust the distance that the supporting member 32 protrudes out of the base 31. When the mounting protrusion 321 slides to the target mounting ring groove 3111 in the adjusting groove, the supporting member 32 is rotated again to slide the mounting protrusion 321 into the target mounting ring groove 3111, so as to position the supporting member 32, thereby adjusting the height of the supporting frame 3 to adapt to direct-type backlight modules with different light mixing distances.
In the supporting member 32 in the related art, since the mounting ring groove 3111 and the adjusting groove are both formed on the hole wall of the mounting hole 311, that is, located inside the mounting hole 311, when the height of the supporting frame 3 is adjusted, an operator cannot easily see the relative position between the mounting ring groove 3111 and the mounting protrusion 321, so that the positioning of the supporting member 32 is very inconvenient, and therefore, the height adjusting efficiency of the supporting frame 3 is low, and labor and time are wasted.
As shown in fig. 5 to 9, fig. 5 is a schematic structural view of the supporting frame 3 in some embodiments of the present application, fig. 6 is a schematic structural view of the base 31 of the supporting frame 3 in fig. 5, fig. 7 is a view of the base 31 in fig. 6 on the side where the clamping groove 312 is formed, fig. 8 is a schematic structural view of the supporting member 32 in fig. 5, and fig. 9 is a front view of fig. 8. The support frame 3 includes a base 31 and a support 32. The outer surface of the base 31 is provided with a plurality of slots 312 arranged along the height direction H of the supporting frame 3.
The supporting member 32 includes a clamping plate 322 and a supporting member 323, the supporting member 323 is fixed on one side of the clamping plate 322 along the height direction H of the supporting frame 3, and one end of the supporting member 323 away from the clamping plate 322 is a supporting end, the supporting end abuts against the optical film 2 to support the optical film 2, the clamping plate 322 can be inserted into each clamping groove 312 respectively to adjust the distance of the supporting end protruding out of the base 31.
When the height of the supporting frame 3 is adjusted, the clamping plate 322 of the supporting member 32 is pulled out from the initial clamping groove 312 and then inserted into the target clamping groove 312, so that the distance of the supporting end protruding out of the base 31 can be adjusted, and the height of the supporting frame 3 can be adjusted. Because the clamping groove 312 on the base 31 is formed on the outer surface of the base 31, the operator can clearly see the position relationship between the clamping plate 322 and the clamping groove 312, and the operator can accurately and quickly insert the clamping plate 322 into the target clamping groove 312 to complete the height adjustment of the support frame 3, thereby being beneficial to improving the height adjustment efficiency of the support frame 3.
As shown in fig. 3, the base 31 may be bonded to the chamber bottom wall 13, or may be connected to the chamber bottom wall 13 by a fastening member such as a screw. Compared with the connection through a fastener, the base 31 is bonded with the cavity bottom wall 13, so that the cavity bottom wall 13 can be prevented from being perforated, and the cavity bottom wall 13 can reflect light emitted by the light-emitting element 4 to the optical diaphragm 2 more favorably.
In some embodiments, as shown in fig. 5 and 6, the outer surface of base 31 includes a base end surface 313, and a plurality of base side surfaces 314 at edges of base end surface 313, each of the plurality of card slots 312 opening on base side surface 314.
The plurality of slots 312 may be formed on the same base side 314 or on different base sides 314.
Open a plurality of draw-in grooves 312 on same base side 314 of base 31, when adjusting the height of support frame 3, just so can avoid operating personnel to move back and forth support piece 32 in the base side 314 of the difference of base 31 to can further make things convenient for operating personnel to the altitude mixture control of support frame 3.
The base 31 may have a rectangular parallelepiped shape (as shown in fig. 5) or a polygonal prism shape, and is not particularly limited.
In some embodiments, as shown in fig. 5, 6 and 7, the slot of the slot 312 is elongated, and the extending direction of the slot is perpendicular to the height direction H of the supporting frame 3.
The extending direction of the notches of the locking grooves 312 is perpendicular to the height direction H of the support frame 3, so that the occupied space of the locking grooves 312 in the height direction H of the support frame 3 can be reduced, and the size of the base 31 in the height direction H of the support frame 3 can be reduced.
In some embodiments, as shown in fig. 5 and 6, an avoiding groove 315 communicated with each of the card slots 312 is formed on the base end surface 313 of the base 31, the length direction of the avoiding groove 315 is parallel to the groove depth direction X of the card slot 312, and one end of the avoiding groove 315 penetrates through the base side surface 314 on which the card slot 312 is formed; when the chucking plate 322 is inserted into the chucking groove 312, the support body 323 protrudes from the escape groove 315 out of the base end surface 313.
By providing the avoiding groove 315, when the clamping plate 322 is inserted into the clamping groove 312, the supporting body 323 extends out of the avoiding groove 315 from the base end surface 313 of the base 31, and the avoiding groove 315 can limit the supporting body 323 to a certain extent, so that the supporting member 32 is more stably installed on the base 31.
Of course, in addition to the above-described structure, the avoiding groove 315 may not be provided on the base end surface 313 of the base 31, the support 323 may be provided at the rear end of the card board 322 in the insertion direction, and when the card board 322 is inserted into the card slot 312, the support 323 is located on one side of the base 31, and this arrangement may also achieve height adjustment of the supporting frame 3.
In some embodiments, as shown in fig. 5, 11, and 12, fig. 11, 12 are a-a cross-sectional views of the base 31 in fig. 5. A limiting part 316 is arranged at the notch of the clamping groove 312; when the card 322 is inserted into the card slot 312, the card 322 is located between the first slot wall 3121 and the stop portion 316, and the first slot wall 3121 is an end slot wall of the card slot 312 away from the slot opening.
Because the clamping plate 322 is located between the first groove wall 3121 and the limiting portion 316 when the clamping plate 322 is inserted into the clamping groove 312, the first groove wall 3121 and the limiting portion 316 can limit the clamping plate 322 in the depth direction of the clamping groove 312, so that the clamping plate 322 is prevented from being separated from the clamping groove 312, and the mounting stability of the support member 32 on the base 31 is improved.
The limiting portion 316 may be a limiting block, a limiting pin, etc., and is not limited herein. The position limiting portion 316 may be integrally formed with the base 31, or may be designed separately, and is not limited herein.
Because the notch of the engaging groove 312 is provided with the limiting portion 316, in order to ensure that the engaging plate 322 can be smoothly inserted into the engaging groove 312, the width of the engaging groove 312 needs to be greater than the thickness of the engaging plate 322, so that a sufficient gap is formed between the limiting portion 316 and the wall of the engaging groove 312 on one side for the engaging plate 322 to be inserted. Since the slot width of the slot 312 is larger than the thickness of the card 322, the card 322 is prone to shake in the height direction H of the support frame 3, and to solve this problem, in some embodiments, as shown in fig. 10, 11 and 12, fig. 10 is a top view of the support 32 in fig. 9. The edge of the clamping plate 322 is provided with an elastic bulge 324, the groove wall of the clamping groove 312 is provided with a limiting hole 317, and the hole depth direction Y of the limiting hole 317 is vertical to the height direction H of the support frame 3; when the clamping plate 322 is located between the first groove wall 3121 and the limiting portion 316, the elastic protrusion 324 extends into the limiting hole 317, and along the height direction H of the supporting frame 3, two sides of the elastic protrusion 324 are abutted against the hole wall of the limiting hole 317 (that is, the upper and lower sides of the elastic protrusion 324 in fig. 11 are abutted against the hole walls of the upper and lower sides of the limiting hole 317 respectively), so that the clamping plate 322 and the base 31 are relatively fixed.
When the supporting member 32 is installed on the base 31, the clamping plate 322 is first inserted into the clamping groove 312 along the depth direction of the clamping groove 312, at this time, the elastic protrusion 324 is extruded by the groove wall of the clamping groove 312 to be elastically deformed and abutted against the groove wall of the clamping groove 312, then the clamping plate 322 is moved along the height direction H of the supporting frame 3, and when the elastic protrusion 324 is opposite to the position of the limiting hole 317, the elastic protrusion 324 restores to be elastically deformed to extend into the limiting hole 317. Because along the direction of height H of the supporting frame 3, the upper and lower sides of the elastic protrusion 324 are abutted against the hole wall of the limiting hole 317, so that the limiting hole 317 can limit the displacement of the elastic protrusion 324 in the direction of height H of the supporting frame 3, the clamping plate 322 and the base 31 are relatively fixed, and the supporting member 32 is firmly installed on the base 31.
In some embodiments, as shown in fig. 10, 11 and 12, an escape space 3241 is provided between the elastic protrusion 324 and the clamping plate 322 for the elastic protrusion 324 to deform in the hole depth direction Y of the limiting hole 317.
As shown in fig. 11, by providing the escape space 3241, when the elastic protrusion 324 is elastically deformed, the elastic protrusion 324 can be escaped from being deformed, so that the elastic protrusion 324 is more easily deformed in the hole depth direction Y of the stopper hole 317, and the elastic protrusion 324 is more easily inserted into the stopper hole 317.
Illustratively, as shown in fig. 10, 11 and 12, the resilient protrusions 324 are resilient lugs and the escape spaces 3241 are openings for the resilient lugs that may be formed recessed from a side edge of the card 322.
In some embodiments, as shown in fig. 10, 11 and 12, along a first direction Y, the two side edges of the clamping plate 322 are respectively provided with an elastic protrusion 324, the two opposite side groove walls of the clamping groove 312 are respectively provided with a limiting hole 317, and the first direction Y is a direction perpendicular to the groove depth direction X of the clamping groove 312 and the thickness direction of the clamping plate 322; when the clamping plate 322 is located between the first groove wall 3121 and the limiting portion 316, the elastic protrusions 324 located at the two side edges of the clamping plate 322 respectively extend into the corresponding limiting holes 317.
The elastic protrusions 324 are arranged at the edges of the two sides of the clamping plate 322 along the first direction Y and respectively extend into the limiting holes 317 on the groove walls of the two opposite sides of the clamping groove 312, so that the arrangement number of the elastic protrusions 324 and the limiting holes 317 can be reduced while the clamping plate 322 and the base 31 are relatively fixed, and the support frame 3 can be manufactured conveniently.
In some embodiments, as shown in fig. 10 and 11, the front end of the chucking plate 322 is provided with a first chamfer 325 in the direction in which the chucking plate 322 is inserted into the chucking groove 312 (the X + direction shown in fig. 10). The front end of the clamping plate 322 is tapered by providing the first chamfer 325 at the front end of the clamping plate 322, so that the front end of the clamping plate 322 can be conveniently inserted into the engaging groove 312.
The first chamfer 325 may be disposed on one side of the card 322 along the first direction Y, as shown in fig. 10, or disposed on both sides of the card 322, which is not limited herein.
In some embodiments, as shown in fig. 8 and 9, the support 323 has a plate shape, and an end of the support 323 away from the clamping plate 322 is provided with a second chamfer 326.
By providing the second chamfer 326 at the end (top end) of the support body 323 remote from the card plate 322, the area of the base end surface 313 at the top end of the support body 323 can be reduced, that is: the supporting body 323 has a small head and a thick bottom, so that excessive light can be prevented from passing through the top end of the supporting body 323, the reduction of the intensity of the light emitted by the light-emitting element by the supporting body 323 is reduced, and the occurrence of shadows in the area of the display panel corresponding to the supporting frame 3 can be eliminated.
The second chamfer 326 may be disposed on one side of the supporting body 323 or on both sides of the supporting body 323 along the width direction of the supporting body 323, which is not limited herein.
As shown in FIG. 9, the support 323 has a top width d1 and a bottom width d2, d2/d1 should not be too large or too small. If d2/d1 is too large, the tip of the supporting body 323 is affected to be too sharp, and the optical film 2 is easily damaged. If d2/d1 is too small, the difference between the top and bottom of the supporting member 32 is small, which is not favorable for eliminating the shadow on the corresponding supporting frame 3 area of the display panel. Research shows that when the range of d2/d1 is 2.5-4, the optical film 2 is not easy to be damaged, and the shadow on the area of the support frame 3 corresponding to the display panel can be better eliminated.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A support frame for supporting an optical film, comprising:
the outer surface of the base is provided with a plurality of clamping grooves which are arranged along the height direction of the supporting frame;
the supporting piece comprises a clamping plate and a supporting body, the supporting body is fixed on one side of the clamping plate along the height direction of the supporting frame, one end, far away from the clamping plate, of the supporting body is a supporting end, and the clamping plate can be respectively inserted into each clamping groove so as to adjust the distance between the supporting end and the base.
2. The support bracket of claim 1,
the surface of base includes the base terminal surface and is located a plurality of base sides of the edge of base terminal surface, it is a plurality of the draw-in groove is all seted up in on the base side.
3. The support bracket of claim 2,
an avoiding groove communicated with each clamping groove is formed in the end face of the base, the length direction of each avoiding groove is parallel to the depth direction of each clamping groove, and one end of each avoiding groove penetrates through the side face of the base provided with the clamping groove;
when the clamping plate is inserted into the clamping groove, the support body extends out of the end face of the base from the avoiding groove.
4. A support stand according to claim 3,
a limiting part is arranged at the notch of the clamping groove;
when the clamping plate is inserted into the clamping groove, the clamping plate is located between a first groove wall and the limiting portion, and the first groove wall is the groove wall at one end, far away from the notch, of the clamping groove.
5. The support bracket of claim 4,
an elastic bulge is arranged at the edge of the clamping plate, a limiting hole is formed in the groove wall of the clamping groove, and the hole depth direction of the limiting hole is perpendicular to the height direction of the supporting frame;
when the clamping plate is located between the first groove wall and the limiting part, the elastic protrusions extend into the limiting holes, and the two sides of the elastic protrusions are abutted against the hole walls of the limiting holes along the height direction of the supporting frame, so that the clamping plate and the base are relatively fixed.
6. The support bracket of claim 5,
an avoiding space for the elastic bulge to deform in the hole depth direction of the limiting hole is formed between the elastic bulge and the clamping plate.
7. The support bracket of claim 5,
the elastic bulges are respectively arranged at the edges of two sides of the clamping plate along a first direction, the limiting holes are respectively arranged on the groove walls of two opposite sides of the clamping groove, and the first direction is a direction perpendicular to the groove depth direction of the clamping groove and the thickness direction of the clamping plate;
when the clamping plate is positioned between the first groove wall and the limiting part, the elastic bulges positioned at the edges of two sides of the clamping plate respectively extend into the corresponding limiting holes.
8. A support frame as claimed in any one of claims 1 to 7,
along the direction that the cardboard inserted the draw-in groove, the cardboard front end is equipped with first chamfer.
9. A direct type backlight module is characterized by comprising:
the back plate is used for enclosing a placing cavity with an opening on one side, and the placing cavity comprises a cavity bottom wall opposite to the opening and a cavity side wall arranged at the periphery of the cavity bottom wall;
the optical diaphragm is arranged at the opening;
the support of any one of claims 1 to 8, a base of said support being disposed on said cavity bottom wall, a support of said support abutting said optical diaphragm.
10. A display device, comprising:
the direct type backlight module of claim 9;
and the display panel is positioned on one side of the direct type backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290697.0A CN113031342B (en) | 2021-03-18 | 2021-03-18 | Support frame, direct type backlight module and display device |
Applications Claiming Priority (1)
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| CN113983315A (en) * | 2021-10-26 | 2022-01-28 | 深圳创维－Rgb电子有限公司 | Display device supporting structure and display device |
| CN115343883A (en) * | 2022-06-30 | 2022-11-15 | 惠科股份有限公司 | Backlight module and display device |
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| CN115343883A (en) * | 2022-06-30 | 2022-11-15 | 惠科股份有限公司 | Backlight module and display device |
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