CN113075821A - LED backlight module - Google Patents
LED backlight module Download PDFInfo
- Publication number
- CN113075821A CN113075821A CN202110359987.6A CN202110359987A CN113075821A CN 113075821 A CN113075821 A CN 113075821A CN 202110359987 A CN202110359987 A CN 202110359987A CN 113075821 A CN113075821 A CN 113075821A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- rack
- fixed
- close
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a LED backlight unit relates to LED's field, including the frame, the inside of frame is equipped with the deflector, the both sides of deflector are equipped with the lamp body, the position that a side of deflector is close to both ends is fixed with the connecting plate respectively, the one end that the deflector was kept away from to the connecting plate is connected with the rack, the meshing has the gear on the rack, be fixed with the installation axle coaxial with the gear on the gear, install the epaxial first bevel gear with the installation axle that still is fixed with, the meshing has second bevel gear on the first bevel gear, threaded connection has the regulating roller coaxial with second bevel gear on the second bevel gear, the lamp body is installed in the one side that the regulating roller is close to the light guide plate, the regulating roller is kept away from the one. This application has the comparatively stable effect of distance between light guide plate and the lamp body when control light guide plate takes place expend with heat and contract with cold.
Description
Technical Field
The application relates to the field of LEDs, in particular to an LED backlight module.
Background
The so-called backlight is a light source located behind a Liquid Crystal Display (LCD), and its luminous effect will directly affect the visual effect of the liquid crystal display module (LCM). The backlight source is a light source for providing an LCD panel, and mainly includes a light source, a light guide plate, an optical film, a plastic frame, and the like. In the LED backlight module, the LED lamp strip is arranged on the side face of the light guide plate, and the closer the LED lamp strip and the light guide plate are, the better the backlight display effect is.
Referring to fig. 1, the backlight module in the related art generally includes an outer frame 1, a light guide plate 2 is disposed inside the outer frame 1, lamp bodies 3 are respectively mounted on two opposite inner side walls in the outer frame 1, the two lamp bodies 3 are disposed towards a direction close to the light guide plate 2, and a distance between each lamp body 3 and the light guide plate 2 is the same.
In view of the above-mentioned related art, the inventor believes that the distance between the light guide plate 2 and the lamp body 3 may vary due to the thermal expansion and contraction, and when the distance between the light guide plate 2 and the lamp body 3 is too large, the light-emitting effect of the light guide plate 2 is poor; when the distance between the light guide plate 2 and the lamp body 3 is small, the light guide plate 2 may cause a pressing damage to the lamp body 3.
Disclosure of Invention
In order to control the distance between light guide plate and the lamp body when the light guide plate takes place expend with heat and contract with cold comparatively stable, this application provides a LED backlight unit.
The application provides a LED backlight unit adopts following technical scheme:
the utility model provides a LED backlight unit, including the frame, the inside of frame is equipped with the deflector, the both sides of deflector are equipped with the lamp body, the position that a side of deflector is close to both ends is fixed with the connecting plate respectively, the one end that the deflector was kept away from to the connecting plate is connected with the rack, the meshing has the gear on the rack, be fixed with the installation axle coaxial with the gear on the gear, still be fixed with on the installation axle with the coaxial first bevel gear of installation axle, the meshing has the second bevel gear on the first bevel gear, threaded connection has the regulating roller coaxial with the second bevel gear on the second bevel gear, the lamp body is installed in the one side that the regulating roller is close to the light guide plate, the regulating roller is kept.
By adopting the technical scheme, when the light guide plate is subjected to thermal expansion and cold contraction due to external influence, the connecting plates at the two ends of the light guide plate move towards the direction close to or away from the lamp body under the driving of the light guide plate, the connecting plates move to drive the rack to move, the rack moves to drive the secondary profit and the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear to rotate, and the second bevel gear rotates to drive the adjusting roller to move towards the direction away from or close to the light guide plate; so when the light guide plate takes place expend with heat and contract with cold, the regulating roller can drive the lamp body of installing on the regulating roller and take place the motion to the direction of being close to or keeping away from the light guide plate, and the distance of being convenient for between control lamp body and the light guide plate is comparatively stable for the light guide plate remains better light effect that shows throughout.
Preferably, a first heat dissipation hole is formed in one side wall, close to the adjusting roller, of the outer frame, and a first plug body is clamped in the first heat dissipation hole.
Through adopting above-mentioned technical scheme, when the light guide plate is heated and expands, can pull first cock body and make first cock body break away from first louvre, the inside light guide plate of the frame of so being convenient for dispels the heat.
Preferably, a first rod body is fixed at one end, away from the light guide plate, of the adjusting roller, a second rod body is fixedly connected at one end, away from the adjusting roller, of the first rod body, and one end, away from the first rod body, of the second rod body is fixedly connected with the first stopper body.
By adopting the technical scheme, when the light guide plate is heated and expanded to enable the adjusting roller to move towards the direction far away from the light guide plate, the adjusting roller moves to drive the first rod body and the second rod body to move towards the direction far away from the outer frame, the second rod body moves to drive the first plug body to move towards the direction far away from the outer frame, and when the first plug body is separated from the first heat dissipation hole, the heat dissipation effect of the outer frame is better; the first plug body is driven to be separated from the first heat dissipation hole through the expansion of the light guide plate, other external force is not needed, and manpower and material resources are saved.
Preferably, one side surface of the first plug body is an inclined surface gradually inclined toward a direction approaching the light guide plate.
Through adopting above-mentioned technical scheme, when first cock body when moving towards the direction of keeping away from first louvre, the heat radiating area of first louvre crescent, be convenient for carry out the heat dissipation of different degrees to the light guide plate of frame inside.
Preferably, the rack is provided with an inserting hole at one end close to the connecting rod, the end of the connecting rod far away from the light guide plate is inserted into the inserting hole, and the rack abuts against one side wall of the through hole close to the adjusting roller.
Through adopting above-mentioned technical scheme, to the direction pulling rack of keeping away from the connecting rod, make the connecting rod break away from the spliced eye, thereby to keeping away from the inside direction pulling rack of frame again, thereby make the rack pass the through-hole and break away from inside the frame, so accomplished the dismantlement of rack promptly, be convenient for maintain and change the rack.
Preferably, a fixing plate located on one side, away from the rack, of the adjusting roller is fixed on one side wall of the outer frame, a roller abutting against the rack is arranged on one side, away from the adjusting roller, of the rack, a fixing shaft penetrating through the roller is fixedly connected to the roller, and at least two springs located on two sides of the roller are fixed between the fixing plate and the fixing shaft.
By adopting the technical scheme, the roller tightly abuts against the rack under the action of the spring, so that the rack is tightly attached to one side wall of the through hole close to the adjusting roller, and the connection between the rack and the connecting rod is stable; and when the rack moves, the roller is tightly attached to the rack to rotate, so that the resistance of the roller to the movement of the rack is reduced.
Preferably, a loop bar is fixed on the fixed shaft in the direction close to the fixed plate, a sleeve is fixed on the fixed plate in the direction close to the fixed shaft, and the sleeve is connected with the loop bar in a sliding manner.
Through adopting above-mentioned technical scheme, sleeve pipe and sleeve pipe are the flexible of spring and lead to for when the gyro wheel takes place to rotate under the drive of rack, the tight rack that supports that can be better.
Preferably, the frame has been close to a lateral wall of installation axle and has been seted up the second louvre, and the joint has the second cock body in the second louvre, and the installation axle is kept away from the one end of light guide plate and is run through the second cock body and with second cock body threaded connection, and the side of the second cock body inclines to the direction of keeping away from the installation axle towards the direction of keeping away from the gear gradually.
Through adopting above-mentioned technical scheme, when the installation axle of light guide plate thermal expansion area takes place to rotate, the installation axle rotates and drives the second cock body to keeping away from the inside direction motion of frame, so the heat radiating area crescent of second louvre does benefit to and dispels the heat to the inside deflector of frame.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the distance between the lamp body and the light guide plate is convenient to control to be stable, so that the light guide plate always keeps a good light display effect;
2. the first plug body is driven to be separated from the first heat dissipation hole through the expansion of the light guide plate, other external force is not needed, and manpower and material resources are saved;
3. the rack is convenient to maintain and replace.
Drawings
Fig. 1 is a schematic structural view embodying the related art.
Fig. 2 is a schematic view of an overall structure of a backlight module according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of an adjusting mechanism embodied in the embodiment of the present application.
FIG. 4 is a schematic structural diagram of a restraining assembly according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a sleeve and a loop bar according to an embodiment of the present application.
Description of reference numerals: 1. an outer frame; 11. a through hole; 12. a first heat dissipation hole; 13. a second heat dissipation hole; 2. a light guide plate; 21. a connecting rod; 3. a lamp body; 4. an adjustment mechanism; 41. a rack; 411. inserting holes; 42. a gear; 43. installing a shaft; 431. a second plug body; 44. a mounting seat; 45. a mounting frame; 46. a first bevel gear; 47. a second bevel gear; 48. a regulating roller; 481. a first rod body; 482. a second rod body; 483. a first plug body; 49. a support cylinder; 5. a restraining component; 51. a fixing plate; 52. a spring; 53. a fixed shaft; 54. a roller; 55. a loop bar; 56. a sleeve.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses an LED backlight module. Referring to fig. 2 and 3, the backlight module includes an outer frame 1, a light guide plate 2 is disposed inside the outer frame 1, and the light guide plate 2 is located in the middle of the outer frame 1. The two sides of the light guide plate 2 are respectively provided with a lamp body 3, and the lamp bodies 3 are arranged towards the direction close to the light guide plate 2. Each lamp body 3 is connected with an adjusting mechanism 4 for adjusting the movement of the lamp body 3 so as to control the distance between the lamp body 3 and the light guide plate 2 to be stable.
When the light guide plate 2 is required to move towards the direction close to or away from the lamp bodies 3 on both sides due to the influence of thermal expansion and cold contraction, the adjusting mechanism 4 adjusts the lamp bodies 3 to move along with the thermal expansion and cold contraction of the light guide plate 2, so that the distance between the lamp bodies 3 and the light guide plate 2 is stable.
Two ends of one side surface of the light guide plate 2 are respectively and fixedly connected with a connecting rod 21, and the connecting rod 21 is arranged perpendicular to the light guide plate 2. The adjusting mechanism 4 comprises a rack 41 connected with one end of the connecting rod 21 far away from the light guide plate 2, and the rack 41 is arranged parallel to the light guide plate 2. Through holes 11 are respectively formed in two opposite side walls of the outer frame 1, one end, far away from the connecting rod 21, of the rack 41 penetrates through the through holes 11, and the rack 41 is connected with the through holes 11 in an inserting mode. The rack 41 is engaged with a gear 42, and the gear 42 is located inside the outer frame 1. The axle center department fixedly connected with installation axle 43 of gear 42, installation axle 43 and gear 42 are concentric and installation axle 43 runs through gear 42, and the lateral wall of installation axle 43 rotates and is connected with mount pad 44, and the lateral wall fixedly connected with support frame of mount pad 44, support frame and the inside wall fixed connection of frame 1.
Referring to fig. 3 and 4, a first bevel gear 46 concentric with the mounting shaft 43 is fixedly connected to one end of the mounting shaft 43 close to the light guide plate 2, a second bevel gear 47 is engaged with the first bevel gear 46, an adjusting roller 48 is screwed to the axis of the second bevel gear 47, the adjusting roller 48 is concentric with the second bevel gear 47, and the lamp body 3 is mounted on one side surface of the adjusting roller 48 close to the light guide plate 2. A supporting tube 49 is fixedly connected to a side surface of the second bevel gear 47 away from the light guide plate 2, the supporting tube 49 is sleeved outside the adjusting roller 48 and the supporting tube 49 is fixedly connected to an inner side wall of the outer frame 1, and one end of the adjusting roller 48 away from the second bevel gear 47 penetrates through a side wall of the outer frame 1 and extends out of the inner part of the outer frame 1.
When the light guide plate 2 is heated and expanded, the light guide plate 2 drives the connecting rod 21 to move towards the direction close to the lamp body 3, the connecting rod 21 drives the rack 41 to move towards the direction away from the light guide plate 2, the rack 41 moves to drive the gear 42 to rotate, and the gear 42 rotates to drive the mounting shaft 43 to rotate relative to the mounting base 44.
This installation axle 43 rotates and to drive first bevel gear 46 and take place to rotate, and first bevel gear 46 rotates and drives second bevel gear 47 and take place to rotate, and second bevel gear 47 rotates and to drive adjusting roller 48 to the direction motion of keeping away from light guide plate 2, and adjusting roller 48 moves and to drive lamp body 3 to the direction motion of keeping away from light guide plate 2. So can make lamp body 3 take place to remove along with the expend with heat and contract with cold of light guide plate 2 for distance remain stable between light guide plate 2 and the lamp body 3, the apparent light that light guide plate 2 of being convenient for can be better.
The side wall of the adjusting roller 48 far from the end of the light guide plate 2 is fixedly connected with a first rod 481, and the first rod 481 is perpendicular to the axis of the adjusting roller 48. One end of the first rod 481 far away from the adjusting roller 48 is fixedly connected with a second rod 482, and the second rod 482 is perpendicular to the first rod 481 and is arranged towards the direction close to the outer frame 1. A first heat dissipation hole 12 is opened on one side wall of the outer frame 1 having a through hole 11, and a first plug body 483 is clamped in the first heat dissipation hole 12. One side surface of the first stopper 483 close to the second rod 482 is fixedly connected to one end of the second rod 482 far away from the first rod 481. One side surface of the first plug body 483 disposed in the first heat dissipation hole 12 is an inclined surface, and an opening of the end of the first heat dissipation hole 12 away from the light guide plate 2 is a flared opening, so that when the first plug body 483 gradually moves in a direction away from the light guide plate 2, the heat dissipation area of the first heat dissipation hole 12 gradually increases.
Thereby take place the inflation when light guide plate 2 makes the regulating roller 48 to the direction motion of keeping away from light guide plate 2, regulating roller 48 drives first body of rod 481 and second body of rod 482 and moves to the direction of keeping away from light guide plate 2, and second body of rod 482 drives first stopper 483 and moves to the direction of keeping away from light guide plate 2, and the heat radiating area of first louvre 12 crescent this moment utilizes to dispel the heat to light guide plate 2 in the frame 1.
Three sides that first stopper body 483 kept away from the inclined plane tightly support the corresponding side of first louvre 12 respectively, so when first stopper body 483 takes place the motion in first louvre 12, the lateral wall of first louvre 12 can provide the effect of direction for the motion of first stopper body 483.
A second heat dissipation hole 13 is formed in a side wall of the outer frame 1 close to the mounting shaft 43, a second plug body 431 is clamped in the second heat dissipation hole 13, and one end, far away from the first bevel gear 46, of the mounting shaft 43 penetrates through the second plug body 431 and is in threaded connection with the second plug body 431. One side surface of the second plug 431 is also an inclined surface, and an opening of one end of the second heat dissipation hole 13 away from the light guide plate 2 is a flare.
When the light guide plate 2 expands to drive the gear 42 and the mounting shaft 43 to rotate, the mounting shaft 43 rotates to drive the second plug 431 to move in a direction away from the inside of the outer frame 1, and at the moment, the heat dissipation area of the second heat dissipation hole 13 is gradually increased, thereby being beneficial to the heat dissipation of the light guide plate 2 inside the outer frame 1.
The rack 41 is detachably connected with the connecting rod 21, so that the rack 41 can be conveniently detached and replaced. One side face of the rack 41 close to the through hole 11 and close to the adjusting roller 48 is tightly attached to, one side face of the rack 41 is provided with an inserting hole 411, and one end of the connecting rod 21 far away from the light guide plate 2 is inserted into the inserting hole 411.
When the rack 41 and the connecting rod 21 need to be detached and separated, the rack 41 only needs to be pulled in a direction away from the light guide plate 2 until the connecting rod 21 is separated from the inserting hole 411, and at this time, the rack 41 is also separated from the gear 42; then, the rack 41 is pulled in a direction away from the inside of the outer frame 1 until the rack 41 is separated from the inside of the outer frame 1, thereby completing the detachment of the rack 41.
A plurality of inserting holes 411 are formed in the rack 41, the plurality of inserting holes 411 are arranged along the length direction of the rack 41, and the connecting rod 21 is inserted into one of the inserting holes 411. The connecting rod 21 is plugged with different plugging holes 411, so that the length of the rack 41 extending out of the outer frame 1 through the through hole 11 can be adjusted, and the rack 41 can better reciprocate along with expansion and contraction of the light guide plate 2.
The outer frame 1 is connected with a limiting component 5 which pushes the rack 41 to tightly abut against one side wall of the through hole 11 close to the adjusting roller 48. The limiting assembly 5 comprises a fixing plate 51 fixedly connected with an outer side wall of the outer frame 1, two springs 52 are fixedly connected with one side surface of the fixing plate 51 close to the rack 41, and one end of each spring 52 far away from the fixing plate 51 is fixedly connected with the same fixing shaft 53. The outer side wall of the fixed shaft 53 is rotatably connected with a roller 54 which is in the same direction as the fixed shaft 53, the roller 54 is positioned between the two springs 52, the roller 54 is tightly pressed against one side wall of the gear 42, and the springs 52 are in a compressed state.
The roller 54 is pressed against the rack 41 under the action of the spring 52, so that the connection between the rack 41 and the connecting rod 21 is stable. And when the rack 41 moves, the roller 54 and the rack 41 rotate relatively, so that the resistance of the roller 54 to the movement of the rack 41 is reduced.
Referring to fig. 5, two ends of the fixed shaft 53 are fixedly connected with loop bars 55 respectively, the loop bars are arranged towards the direction close to the fixed shaft 51, one side surface of the fixed shaft 51 close to the fixed shaft 53 is fixedly connected with a sleeve 56, one end of each loop bar 55 close to the fixed shaft 51 is inserted into the sleeve 56, and the loop bars 55 are slidably connected with the sleeve 56. Each two relatively sliding sleeves 56 and rods 55 are nested inside by a respective spring 52. The sleeve 55 and the sleeve 56 guide the extension and contraction of the spring 52, so that the roller 54 can better abut against the rack 41.
The implementation principle of the LED backlight module provided by the embodiment of the application is as follows: when the light guide plate 2 is heated and expanded, the connecting rod 21 moves towards the direction close to the lamp body 3, so that the connecting rod 21 drives the rack 41 to move towards the direction far away from the light guide plate 2, and the rack 41 moves to drive the gear 42, the mounting shaft 43 and the first bevel gear 46 to rotate; the first bevel gear 46 rotates to drive the second bevel gear 47 to rotate, and the second bevel gear 47 rotates to drive the adjusting roller 48 and the lamp body 3 to move in a direction away from the light guide plate 2, so that the lamp body 3 can move along with expansion caused by heat and contraction caused by cold of the light guide plate 2.
In this process, the first plug body 483 moves in a direction away from the first heat dissipation hole 12, and the second plug body 431 moves in a direction away from the second heat dissipation hole 13, so that the heat dissipation areas of the first heat dissipation hole 12 and the second heat dissipation hole 13 are increased, thereby facilitating the heat dissipation of the light guide plate 2 inside the outer frame 1.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a LED backlight unit, includes frame (1), and the inside of frame (1) is equipped with the deflector, and the both sides of deflector are equipped with lamp body (3), its characterized in that: the position that a side of deflector is close to both ends is fixed with the connecting plate respectively, the one end that the deflector was kept away from to the connecting plate is connected with rack (41), the meshing has gear (42) on rack (41), be fixed with on gear (42) with coaxial installation axle (43) of gear (42), still be fixed with on installation axle (43) with the coaxial first bevel gear (46) of installation axle (43), the meshing has second bevel gear (47) on first bevel gear (46), threaded connection has adjusting roller (48) coaxial with second bevel gear (47) on second bevel gear (47), the one side that is close to light guide plate (2) in adjusting roller (48) is installed in lamp body (3), one end that light guide plate (2) were kept away from in adjusting roller (48) runs through a lateral wall of frame (1).
2. The LED backlight module according to claim 1, wherein: a first heat dissipation hole (12) is formed in one side wall, close to the adjusting roller (48), of the outer frame (1), and a first plug body (483) is clamped in the first heat dissipation hole (12).
3. The LED backlight module according to claim 2, wherein: one end of the adjusting roller (48) far away from the light guide plate (2) is fixed with a first rod body (481), one end of the first rod body (481) far away from the adjusting roller (48) is fixedly connected with a second rod body (482), and one end of the second rod body (482) far away from the first rod body (481) is fixedly connected with a first stopper body (483).
4. The LED backlight module according to claim 3, wherein: one side surface of the first plug body (483) is an inclined surface which gradually inclines towards the direction close to the light guide plate (2).
5. The LED backlight module according to any one of claims 1 to 4, wherein: one end of the rack (41) close to the connecting rod (21) is provided with an inserting hole (411), one end of the connecting rod (21) far away from the light guide plate (2) is inserted into the inserting hole (411), and the rack (41) abuts against one side wall of the through hole (11) close to the adjusting roller (48).
6. The LED backlight module according to claim 5, wherein: a fixing plate (51) located on one side, away from the rack (41), of the adjusting roller (48) is fixed to one side wall of the outer frame (1), a roller (54) abutting against the rack (41) is arranged on one side, away from the adjusting roller (48), of the rack (41), a fixing shaft (53) penetrating through the roller (54) is fixedly connected to the roller (54), and at least two springs (52) located on two sides of the roller (54) are fixed between the fixing plate (51) and the fixing shaft (53).
7. The LED backlight module according to claim 6, wherein: a loop bar (55) is fixed on the fixed shaft (53) towards the direction close to the fixed plate (51), a sleeve (56) is fixed on the fixed plate (51) towards the direction close to the fixed shaft (53), and the sleeve (56) is connected with the loop bar (55) in a sliding mode.
8. The LED backlight module according to claim 6, wherein: the side wall that frame (1) is close to installation axle (43) has seted up second louvre (13), has blocked in second louvre (13) second cock body (431), and installation axle (43) keep away from light guide plate (2) one end run through second cock body (431) and with second cock body (431) threaded connection, and the side of second cock body (431) is towards keeping away from the direction slope of direction of gear (42) to the direction of keeping away from installation axle (43) gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359987.6A CN113075821A (en) | 2021-04-02 | 2021-04-02 | LED backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359987.6A CN113075821A (en) | 2021-04-02 | 2021-04-02 | LED backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113075821A true CN113075821A (en) | 2021-07-06 |
Family
ID=76614819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110359987.6A Pending CN113075821A (en) | 2021-04-02 | 2021-04-02 | LED backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113075821A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| JP2012146504A (en) * | 2011-01-12 | 2012-08-02 | Jvc Kenwood Corp | Lighting system and image display device |
| CN202598313U (en) * | 2012-04-27 | 2012-12-12 | 贵阳海信电子有限公司 | Backlight module, liquid crystal display and liquid crystal display television |
| CN103148413A (en) * | 2013-02-18 | 2013-06-12 | 京东方科技集团股份有限公司 | Back light unit and display device |
| CN103363399A (en) * | 2012-03-28 | 2013-10-23 | 三星电子株式会社 | Backlight unit and image display apparatus having same |
| CN111198416A (en) * | 2018-11-19 | 2020-05-26 | 广州市拓宝电子科技有限公司 | Anti-collision mounting structure of TV luminous strip |
-
2021
- 2021-04-02 CN CN202110359987.6A patent/CN113075821A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012146504A (en) * | 2011-01-12 | 2012-08-02 | Jvc Kenwood Corp | Lighting system and image display device |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| CN103363399A (en) * | 2012-03-28 | 2013-10-23 | 三星电子株式会社 | Backlight unit and image display apparatus having same |
| CN202598313U (en) * | 2012-04-27 | 2012-12-12 | 贵阳海信电子有限公司 | Backlight module, liquid crystal display and liquid crystal display television |
| CN103148413A (en) * | 2013-02-18 | 2013-06-12 | 京东方科技集团股份有限公司 | Back light unit and display device |
| CN111198416A (en) * | 2018-11-19 | 2020-05-26 | 广州市拓宝电子科技有限公司 | Anti-collision mounting structure of TV luminous strip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9182620B1 (en) | Curvature adjustment structure of curved liquid crystal display device | |
| US10162204B2 (en) | Display with telescopic member | |
| US8928833B2 (en) | Backlight module and LCD device | |
| US9547120B2 (en) | Liquid crystal display device and curved backlight assembly thereof | |
| US20130077014A1 (en) | LED Backlight Module and Liquid Crystal Display Device | |
| CN113075821A (en) | LED backlight module | |
| CN103105694A (en) | Liquid crystal panel assembly and liquid crystal display apparatus | |
| CN203658723U (en) | Projection screen device and projection display system | |
| CN210605264U (en) | Liquid crystal display protection backboard | |
| CN112413457A (en) | LED landscape lamp based on backlight module | |
| US20140002767A1 (en) | Backplane for lcd device and lcd device | |
| CN109270736B (en) | Backlight convenient to reflector plate installation location | |
| WO2014124572A1 (en) | Backlight module and display device comprising same | |
| CN203744147U (en) | Diaphragm fixing device of LED backlight module | |
| CN114339013B (en) | Take searchlight security protection control to use integration camera | |
| CN207406624U (en) | A kind of rotating shaft mechanism and its flexible screen | |
| CN105739175A (en) | Backlight module and display device | |
| CN104896382B (en) | Backlight module and the liquid crystal display device comprising it | |
| CN210266617U (en) | Rotary LED display screen | |
| CN203178656U (en) | High efficiency energy saving natural light source image system | |
| CN115494671B (en) | MiniLED backlight source component with high brightness | |
| CN213276014U (en) | Light guide plate mounting and positioning structure of backlight module | |
| CN220474264U (en) | Environment-friendly LED display screen | |
| CN216792642U (en) | Mobile phone backlight source convenient for brightness adjustment | |
| CN214147594U (en) | Billboard spotlight strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210706 |
|
| RJ01 | Rejection of invention patent application after publication |