CN111103729A - High radiating vehicle mounted liquid crystal display backlight structure of narrow frame - Google Patents
High radiating vehicle mounted liquid crystal display backlight structure of narrow frame Download PDFInfo
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- CN111103729A CN111103729A CN201911283234.0A CN201911283234A CN111103729A CN 111103729 A CN111103729 A CN 111103729A CN 201911283234 A CN201911283234 A CN 201911283234A CN 111103729 A CN111103729 A CN 111103729A
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- 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
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- 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
- G02B6/009—Positioning aspects of the light source in the package
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Optics & Photonics (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to a narrow-frame high-heat-dissipation vehicle-mounted liquid crystal display backlight source structure which comprises a middle rubber frame, a plurality of diaphragms, a light guide plate, a reflecting sheet, a lower frame assembly and a light bar, wherein the middle rubber frame is positioned on the upper layer, the diaphragms are stacked below the middle rubber frame, the light guide plate is stacked below the diaphragms, the reflecting sheet is stacked below the light guide plate, the lower frame assembly is positioned below the reflecting sheet, the light bar is installed on the inner side of a lower bending edge of the lower frame assembly, and the lower frame assembly is buckled with. The lower frame assembly comprises a lower aluminum frame with a long edge at one side bent and a side steel frame with three right-angled sides bent and enclosed, and the lower aluminum frame is riveted with the side steel frame through a plurality of rivets to form the lower frame assembly with four enclosed sides. The thickness of the side wall of the side steel frame is 0.3 +/-0.03 mm. This scheme reasonable in design, convenient assembling, have narrow frame, high radiating characteristic.
Description
Technical Field
The invention relates to the technical field of display screen backlight sources, in particular to a narrow-frame high-heat-dissipation vehicle-mounted liquid crystal display screen backlight source structure.
Background
With the rapid development of the automotive electronics industry, the automotive liquid crystal display screen products are continuously developed towards the directions of narrow frames and high heat dissipation; and the left, right and upper frames of the vehicle-mounted liquid crystal display backlight limit the narrow frame of the whole display screen product to be difficult to realize.
As shown in fig. 1, the conventional vehicle-mounted liquid crystal display backlight source mainly includes a plastic frame 100, three films 200 sequentially disposed under the plastic frame 100, a light guide plate 300, a reflector 400, an aluminum frame 500, and a light bar (not shown) disposed inside a bent edge of the lower side of the aluminum frame 500.
In the design of the side-in backlight source in the existing vehicle-mounted liquid crystal display industry, the limitations of cost, materials and process are considered, and the structural design of a lower frame (namely an aluminum frame 500) is as follows: four sides of the single stamping aluminum plate are bent, the thickness of the bent edge is the same as that of the aluminum plate, and the bent edge is used as a retaining wall of the internal light guide plate and the diaphragm; the bent edge on one side is also used as a substrate of the LED light bar, the FPC light bar of the LED is pasted on the bent edge on the side, heat dissipation is carried out by utilizing the high heat conductivity coefficient characteristic of aluminum, and the thickness of the conventional aluminum frame is 1mm and 1.2mm at present.
As shown in fig. 2, in the design of the backlight source for the existing vehicular lcd panel industry, the frame width d of the existing backlight source is:
d, the wall thickness a1 of the rubber frame 100, the bending wall thickness b1 of the aluminum frame 500 and the edge pressing size c of the diaphragm 200; (where the edge size of the film sheet 200 is also part of the frame 100. b1 is 1mm or 1.2mm)
Therefore, the conventional vehicle-mounted liquid crystal display backlight source has the defect that the narrow frame is difficult to realize.
In order to solve the problems, the invention provides a narrow-frame high-heat-dissipation backlight source structure of a vehicle-mounted liquid crystal display screen.
Disclosure of Invention
The invention aims to solve the defect that the conventional vehicle-mounted liquid crystal display backlight source has a narrow frame which is difficult to realize, and simultaneously solves the problem of poor heat dissipation. The concrete solution is as follows:
the utility model provides a high radiating on-vehicle liquid crystal display backlight structure of narrow frame, glues the frame including the well that is located the upper strata, fold a plurality of diaphragms below the well frame of gluing, fold the light guide plate below the diaphragm, fold the reflector plate below the light guide plate, the lower frame subassembly that is located below the reflector plate installs the inboard lamp strip in the limit of bending under the lower frame subassembly, and the lower frame subassembly is glued the frame lock with well, constitutes on-vehicle liquid crystal display backlight.
The lower frame assembly comprises a lower aluminum frame with a long edge at one side bent and a side steel frame with three right-angled sides bent and enclosed, and the lower aluminum frame is riveted with the side steel frame through a plurality of rivets to form the lower frame assembly with four enclosed sides.
Further, the long limit of downside of aluminium frame down is the right angle and bends, and the thickness of aluminium frame down is 1.2 ~ 1.8 mm.
Further, the thickness of the side wall of the side steel frame is 0.3 +/-0.03 mm.
Furthermore, the middle rubber frame is rectangular as a whole, and the cross section of each side is in a transverse T shape.
Furthermore, a plurality of buckling holes are formed in the outer sides of the two long sides of the middle rubber frame, and at least two buckling holes are formed in the outer sides of the two short sides of the middle rubber frame.
Furthermore, the outer side of the upper long edge of the middle rubber frame is at least provided with two first positioning blocks, a gap is arranged between each first positioning block and the middle rubber frame, the middle part of the outer side of each first positioning block is provided with a buckling block protruding outwards, the outer side of the short edge of the middle rubber frame is provided with two second positioning blocks, and a gap is arranged between each second positioning block and the middle rubber frame.
Furthermore, a plurality of rivet holes are formed in the three sides of the lower aluminum frame except for the right-angle bending edge, are identical to the rivet holes formed in the three sides of the side steel frame, and are riveted through a plurality of rivets.
Furthermore, a plurality of buckling blocks protruding outwards are arranged on the outer sides of three edges of the side steel frame, a plurality of buckling blocks protruding outwards are arranged on the outer side of the right-angle bending of the lower aluminum frame, and the buckling blocks of the side steel frame and the lower aluminum frame are matched with the buckling holes of the middle rubber frame and buckled with each other.
Further, the minor face outside of side steel frame is equipped with two outside second location ears that arch up, this second location ear with the second locating piece of well gluey frame matches and cup joints, is used for left and right direction's fixed respectively, and the long limit outside of side steel frame is equipped with two outside first location ears that arch up at least, and the middle part of first location ear is equipped with detains the hole, this first location ear with the first locating piece matching of well gluey frame cup joints, detains the hole simultaneously and detains the piece block for upper and lower direction's is fixed.
Furthermore, the buckling block is buckled with the buckling hole and used for fixing the middle rubber frame and the lower frame component in the front and rear directions and fastening the backlight source of the vehicle-mounted liquid crystal display screen.
In summary, the technical scheme of the invention has the following beneficial effects:
the invention solves the defect that the existing vehicle-mounted liquid crystal display backlight source has a narrow frame which is difficult to realize, and simultaneously solves the problem of poor heat dissipation. In the scheme, the aluminum frame with four bent edges used by the conventional backlight source is changed into a lower aluminum frame bent at one side and a side steel frame bent at three sides, and the lower aluminum frame and the side steel frame are riveted. The unilateral of aluminium frame is bent the barricade down, provides the base plate for LED lamp strip, has ensured heat dispersion. In addition, the diaphragm retaining walls on the three sides are provided by the bending edges of the side steel frames. Because the intensity of steel is higher than aluminum plate, consequently can use the steel sheet that thickness is thinner, replace aluminum plate's the limit of bending to when realizing the narrower frame of backlight complete machine, can also make the bulk strength of backlight obtain promoting. Because the base plate of LED lamp strip still is the limit of bending of the aluminum plate of former thickness, consequently the heat dissipation is not influenced yet.
As shown in fig. 7, the width of the frame of the backlight source is:
d ═ wall thickness of center frame a2+ side wall thickness of side frame b2+ diaphragm hold-down size c (where diaphragm hold-down size also belongs to a part of center frame, b2 ═ 0.3 ± 0.03mm)
The scheme has the following advantages:
(1) compared with the prior backlight structure, the thickness b1(1.0 or 1.2mm) of the aluminum frame is replaced by the thinner side steel frame thickness b2 (about 0.3 mm), so that the size of the frame in the X direction of the backlight is reduced by 0.7 or 0.9mm on one side and 1.4 or 1.8mm on the other side; the single side in the Y direction is reduced by 0.7 or 0.9mm, so that the narrow frame of the backlight source is realized, and the integral strength of the backlight source is improved.
(2) In the scheme, the heat dissipation performance of the whole machine can be further improved by increasing the thickness of the lower aluminum frame (for example, from 1.0mm to 1.5mm), and the size D of the frame on the left side, the right side and the upper side is not increased.
(3) In this scheme, the barricade of diaphragm, light guide plate adopts steel to replace traditional aluminium material, and stamping performance promotes, can do complicated punching press molding, is favorable to the structural design of display screen complete machine.
(4) The location ear (including first location ear and second location ear) of side steel frame cup joints with the locating piece (including first locating piece and second locating piece) of well gluey frame, has ensured the fixing of upper and lower, left and right direction, detains the piece and detains the hole lock, has ensured the fixing of well gluey frame and lower frame subassembly in the front and back direction.
(5) A gap e is arranged between the middle rubber frame and the surface of the diaphragm, so that the phenomenon that the diaphragm is scratched by the middle rubber frame when the diaphragm expands cold and hot is effectively avoided.
In a word, this scheme reasonable in design, convenient assembling, have narrow frame, high radiating characteristic.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is an exploded view of a conventional liquid crystal display backlight for a vehicle;
FIG. 2 is a cross-sectional view of a prior art liquid crystal on-board display backlight, taken along line A-A of FIG. 1, as assembled;
FIG. 3 is an exploded view of a narrow-bezel high-heat-dissipation backlight structure of a liquid crystal display screen on a vehicle according to the present invention;
FIG. 4 is an assembly view of the lower aluminum frame and side steel frame of the present invention;
FIG. 5 is an assembly view of the assembly of the lower aluminum frame and the side steel frame of the present invention with the center rubber frame;
FIG. 6 is a front view of a narrow-bezel high-heat-dissipation backlight structure of a liquid crystal display screen on a vehicle according to the present invention;
fig. 7 is a cross-sectional view taken along line B-B of fig. 6 in accordance with the present invention.
The attached drawings indicate the following:
100-glue frame, 200-diaphragm, 300-light guide plate, 400-reflector plate, 500-aluminum frame, 600-middle glue frame, 601-buckle hole, 602-first positioning block, 603-buckle block, 604-silica gel, 605-double faced adhesive tape, 606-second positioning block, 700-lower aluminum frame, 701-rivet hole, 800-side steel frame, 801-first positioning lug, 802-second positioning lug, 900-lamp strip, D-frame width of existing backlight source, a 1-glue frame wall thickness, b 1-aluminum frame bending wall thickness, c-diaphragm 200 edge pressing size, D-backlight source frame width, a 2-middle glue frame wall thickness, and b 2-side steel frame side wall thickness.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3 to 7, a high-heat-dissipation vehicle-mounted liquid crystal display backlight source structure with a narrow frame comprises a middle rubber frame 600 located on an upper layer, a plurality of diaphragms 200 stacked below the middle rubber frame 600, a light guide plate 300 stacked below the diaphragms 200, a reflector plate 400 stacked below the light guide plate 300, a lower frame assembly located below the reflector plate 400, a light bar 900 mounted on the inner side of a lower bending edge of the lower frame assembly, and the lower frame assembly is buckled with the middle rubber frame 600 to form a vehicle-mounted liquid crystal display backlight source. The vehicle-mounted liquid crystal display screen backlight source also comprises auxiliary materials used for adhering silica gel 604 and double-sided adhesive 605.
The lower frame assembly comprises a lower aluminum frame 700 with a long side bent at one side and a side steel frame 800 with three right-angle sides bent and enclosed, wherein the lower aluminum frame 700 is riveted with the side steel frame 800 through a plurality of rivets (not shown in the figure) to form the lower frame assembly with four enclosed sides.
Further, the long side of the lower aluminum frame 700 is bent at a right angle, and the thickness of the lower aluminum frame 700 is 1.2-1.8 mm.
Further, in this embodiment, the sidewall thickness b2 of the side steel frame 800 is preferably 0.3 ± 0.03 mm.
Further, the middle rubber frame 600 is rectangular as a whole, and the cross section of each side is in a transverse T shape.
Furthermore, a plurality of fastening holes 601 are formed in the outer sides of the two long sides of the middle rubber frame 600, and at least two fastening holes 601 are formed in the outer sides of the two short sides of the middle rubber frame 600.
Furthermore, at least two first positioning blocks 602 are arranged on the outer side of the upper long side of the middle rubber frame 600, a gap is arranged between the first positioning blocks 602 and the middle rubber frame 600, a buckling block 603 protruding outwards is arranged in the middle of the outer side of the first positioning blocks 602, two second positioning blocks 606 are arranged on the outer side of the short side of the middle rubber frame 600, and a gap is arranged between the second positioning blocks 606 and the middle rubber frame 600.
Further, a plurality of rivet holes 701 are formed along three sides of the lower aluminum frame 700 except for the right-angled bend, and the rivet holes 701 are identical to the plurality of rivet holes 701 formed on three sides of the side steel frame 800 and are riveted by a plurality of rivets.
Furthermore, a plurality of buckling blocks 603 protruding outwards are arranged on the outer sides of three edges of the side steel frame 800, a plurality of buckling blocks 603 protruding outwards are arranged on the outer side of the right-angled bend of the lower aluminum frame 700, and the buckling blocks 603 of the side steel frame 800 and the lower aluminum frame 700 are matched with the buckling holes 601 of the middle rubber frame 600 and buckled with each other. The button block 603 is -shaped, and the button hole 601 is rectangular.
Further, the outer side of the short side of the side steel frame 800 is provided with two second positioning lugs 802 which are arched outwards, the second positioning lugs 802 are matched with and sleeved on a second positioning block 606 of the middle rubber frame 600 and are used for fixing in the left and right directions respectively, the outer side of the long side of the side steel frame 800 is provided with at least two first positioning lugs 801 which are arched outwards, the middle of each first positioning lug 801 is provided with a buckling hole 601, the first positioning lugs 801 are matched with and sleeved on a first positioning block 602 of the middle rubber frame 600, and meanwhile the buckling holes 601 are clamped with the buckling blocks 603 and are used for fixing in the up and down directions.
Further, the buckling blocks 603 are buckled with the buckling holes 601 and used for fixing the middle rubber frame 600 and the lower frame assembly in the front and rear directions and fastening the backlight source of the vehicle-mounted liquid crystal display screen.
It should be noted that in this embodiment, the thickness b2 of the side wall of the side steel frame 800 is 0.3 ± 0.03mm, and the thickness of the lower aluminum frame 700 is 1.2 to 1.8mm, which is only one of the best embodiments, and is not a limitation to the protection range of this embodiment.
In summary, the technical scheme of the invention has the following beneficial effects:
the invention solves the defect that the existing vehicle-mounted liquid crystal display backlight source has a narrow frame which is difficult to realize, and simultaneously solves the problem of poor heat dissipation. In the scheme, an aluminum frame 500 (shown in fig. 1) with four bent edges used by the conventional backlight source is replaced by a lower aluminum frame 700 bent at one side and a side steel frame 800 bent at three sides, and the lower aluminum frame and the side steel frame are riveted. The unilateral bending retaining wall of the lower aluminum frame 700 provides a substrate for the LED light bar 900, and ensures heat dissipation performance. In addition, the diaphragm 200 with three sides is provided with a retaining wall by the bent edge of the side steel frame 800. Because the intensity of steel is higher than aluminum plate, consequently can use the steel sheet that thickness is thinner, replace aluminum plate's the limit of bending to when realizing the narrower frame of backlight complete machine, can also make the bulk strength of backlight obtain promoting. Because the substrate of the LED light bar 900 is still the bent edge of the aluminum plate (referring to the bent edge of the lower aluminum frame 700) with the original thickness, the heat dissipation is not affected.
As shown in fig. 7, the width of the frame of the backlight source is:
d ═ wall thickness a of center frame 600 + side wall thickness b2 of side frame 800 + edge size c of diaphragm 200, (where edge size of diaphragm 200 also belongs to a part of center frame 600, b2 ═ 0.3 ± 0.03mm)
The scheme has the following advantages:
(1) compared with the prior backlight structure, the thickness b2 (about 0.3 mm) of the side steel frame 800 is thinner to replace the thickness b1(1.0 or 1.2mm) of the prior aluminum frame 500, so that the size of the frame in the X direction of the backlight is reduced by 0.7 or 0.9mm on one side and 1.4 or 1.8mm on two sides. The single side in the Y direction is reduced by 0.7 or 0.9mm, so that the narrow frame of the backlight source is realized, and the integral strength of the backlight source is improved.
(2) In the present embodiment, the heat dissipation performance of the whole device can be further improved by increasing the thickness of the lower aluminum frame 700 (for example, from 1.0mm to 1.5mm), without increasing the frame size D of the left, right, and upper sides.
(3) In this scheme, diaphragm 200, light guide plate 300's barricade adopts steel matter to replace traditional aluminium material, and stamping performance promotes, can do complicated punching press molding, is favorable to the structural design of display screen complete machine.
(4) The positioning lug (including the first positioning lug 801 and the second positioning lug 802) of the side steel frame 800 is sleeved with the positioning block (including the first positioning block 602 and the second positioning block 606) of the middle rubber frame 600, so that the fixation in the upper, lower, left and right directions is ensured, the buckling block 603 is buckled with the buckling hole 601, and the fixation in the front and rear directions of the middle rubber frame 600 and the lower frame component is ensured.
(5) A gap e (as shown in fig. 7) is formed between the middle rubber frame 600 and the surface of the membrane 200, so that the phenomenon that the membrane 200 is scratched by the middle rubber frame 600 when expanding in cold and hot states is effectively avoided.
In a word, this scheme reasonable in design, convenient assembling, have narrow frame, high radiating characteristic.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. The utility model provides a high radiating on-vehicle liquid crystal display backlight structure of narrow frame which characterized in that: the backlight module comprises a middle rubber frame (600) positioned on the upper layer, a plurality of diaphragms (200) stacked below the middle rubber frame (600), a light guide plate (300) stacked below the diaphragms (200), a reflector plate (400) stacked below the light guide plate (300), a lower frame assembly positioned below the reflector plate (400), and a light bar (900) arranged on the inner side of a lower bending edge of the lower frame assembly, wherein the lower frame assembly is buckled with the middle rubber frame (600) to form a vehicle-mounted liquid crystal display backlight source;
the lower frame assembly comprises a lower aluminum frame (700) with a long edge at one side bent and a side steel frame (800) with three right-angled sides bent and enclosed, wherein the lower aluminum frame (700) is riveted with the side steel frame (800) through a plurality of rivets to form the lower frame assembly with four enclosed sides.
2. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 1, wherein: the long side of the lower aluminum frame (700) is bent at a right angle, and the thickness of the lower aluminum frame (700) is 1.2-1.8 mm.
3. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 2, wherein: the thickness of the side wall of the side steel frame (800) is 0.3 +/-0.03 mm.
4. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 3, wherein: the middle rubber frame (600) is rectangular as a whole, and the cross section of each side is in a transverse T shape.
5. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 4, wherein: a plurality of buckling holes (601) are formed in the outer sides of two long sides of the middle rubber frame (600), and at least two buckling holes (601) are formed in the outer sides of two short sides of the middle rubber frame (600).
6. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 5, wherein: the outer side of the upper long side of the middle rubber frame (600) is at least provided with two first positioning blocks (602), a gap is arranged between each first positioning block (602) and the middle rubber frame (600), the middle part of the outer side of each first positioning block (602) is provided with a buckling block (603) protruding outwards, the outer side of the short side of the middle rubber frame (600) is provided with two second positioning blocks (606), and a gap is arranged between each second positioning block (606) and the middle rubber frame (600).
7. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 6, wherein: the lower aluminum frame (700) is provided with a plurality of rivet holes (701) along the edges except for three edges of the right-angle bending, and the rivet holes (701) are the same as the rivet holes (701) arranged on the three edges of the side steel frame (800) and are riveted through a plurality of rivets.
8. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 7, wherein: three limit outsides of side steel frame (800) are equipped with a plurality of outside convex knot pieces (603), the outside of the right angle of aluminium frame (700) is buckled down is equipped with a plurality of outside convex knot pieces (603), the knot piece (603) of side steel frame (800) and aluminium frame (700) down, with detain hole (601) the matching of well gluey frame (600) to lock each other.
9. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 8, wherein: the short side outside of side steel frame (800) is equipped with two outside second location ear (802) of hunch-up, this second location ear (802) with second locating piece (606) of well gluey frame (600) match and cup joint, be used for left and right direction fixed respectively, the long limit outside of side steel frame (800) is equipped with two outside first location ear (801) of hunch-up at least, the middle part of first location ear (801) is equipped with detains hole (601), this first location ear (801) with first locating piece (602) of well gluey frame (600) match and cup joint, detain hole (601) and detain piece (603) block simultaneously, be used for the fixed of upper and lower direction.
10. The narrow-frame high-heat-dissipation backlight source structure for the vehicle-mounted liquid crystal display screen of claim 9, wherein: the buckling blocks (603) are buckled with the buckling holes (601) and used for fixing the middle rubber frame (600) and the lower frame assembly in the front and rear directions and fastening the backlight source of the vehicle-mounted liquid crystal display screen.
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| CN201911283234.0A CN111103729B (en) | 2019-12-13 | 2019-12-13 | High radiating vehicle mounted liquid crystal display backlight structure of narrow frame |
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| CN201911283234.0A CN111103729B (en) | 2019-12-13 | 2019-12-13 | High radiating vehicle mounted liquid crystal display backlight structure of narrow frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI729877B (en) * | 2020-07-02 | 2021-06-01 | 瑞儀光電股份有限公司 | Backlight module and display device |
| CN113362730A (en) * | 2021-06-01 | 2021-09-07 | 黑龙江天有为电子有限责任公司 | Narrow frame structure of accuse and accuse in car |
| CN114267258A (en) * | 2022-01-11 | 2022-04-01 | 深圳市航盛电子股份有限公司 | Vehicle-mounted display screen frame |
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| CN114267258A (en) * | 2022-01-11 | 2022-04-01 | 深圳市航盛电子股份有限公司 | Vehicle-mounted display screen frame |
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| CN111103729B (en) | 2022-05-27 |
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