CN111190300A - Backlight module of oversized direct type LED liquid crystal panel - Google Patents
Backlight module of oversized direct type LED liquid crystal panel Download PDFInfo
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- CN111190300A CN111190300A CN202010019720.8A CN202010019720A CN111190300A CN 111190300 A CN111190300 A CN 111190300A CN 202010019720 A CN202010019720 A CN 202010019720A CN 111190300 A CN111190300 A CN 111190300A
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- crystal panel
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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
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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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
- G02F1/133504—Diffusing, scattering, diffracting elements
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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
- G02F1/133553—Reflecting elements
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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
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a backlight module of an oversized direct type LED liquid crystal panel, which comprises an optical lens assembly of the liquid crystal panel, a backlight source module, an outer frame and a back plate, wherein the liquid crystal panel, the optical lens assembly and the backlight source module are sequentially arranged on the inner side of the outer frame, and the back plate is positioned on one side of the outer frame, which is far away from the liquid crystal panel. In the invention, an iron plate with an ultra-large area is fixed in an upper direction, a lower direction and a side direction, and a triangle formed by the sectional material conforms to the optical luminosity climbing principle of OD30DLED and is accompanied by a clearance at the position of an ultra-large liquid crystal glass COF; then a 90-degree square rectangular aluminum profile is arranged in the rectangular aluminum profile and serves as a connecting piece for connecting the profiles of the triangular structures, and meanwhile, a plurality of diffusion sheets, brightness enhancement sheets, reflection plates and optical components form an oversized liquid crystal product module, so that the cost of a large-scale die is saved, the early-stage investment cost of the product is greatly reduced, and a shortcut road is provided for the mass production of subsequent similar oversized liquid crystal products.
Description
Technical Field
The invention relates to the technical field of integrated backlight, in particular to a backlight module of an oversized direct type LED liquid crystal panel.
Background
The difficulty of manufacturing the ultra-large liquid crystal display screen is always high, for example, 86 inches and 100 inches liquid crystal display screens, the liquid crystal display screen usually uses an original module when being manufactured, the production cost of the original module is extremely high, the investment in the previous stage is very large, and the sales volume of the ultra-large liquid crystal display screen is not large, so that the capital recovery period of the module investment and the research and development investment in the previous stage is very long, the fund chain is prolonged, and the competition of enterprises is further reduced.
The liquid crystal display screen is produced by using the non-mold opening module, the whole structure is unstable, and a plurality of chain lock problems such as liquid crystal glass fragment damage (one module is damaged and basically scrapped), lamp death, light leakage, overweight weight, high-temperature wire outlet film arch and the like are easily caused.
Therefore, the backlight module of the direct type LED liquid crystal panel with the oversized size is provided to solve the problems.
Disclosure of Invention
The invention aims to provide a backlight module of an oversized direct type LED liquid crystal panel, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a straight following formula LED liquid crystal display panel's of oversized back light module, includes liquid crystal display panel optics lens subassembly, backlight module, frame and backplate, liquid crystal display panel, optics lens subassembly and backlight module locate the frame inboard in proper order, the backplate is located the frame and keeps away from one side of liquid crystal display panel.
The optical lens assembly comprises a plurality of diffusion sheets, brightness enhancement sheets, reflection plates and optical components, wherein the diffusion sheets, the brightness enhancement sheets, the reflection plates and the optical components are combined to form a uniform backlight.
The backlight module is including locating the backplate and being close to the section bar that liquid crystal display panel one side is used for improving product stability, the section bar is triangle-shaped setting, and triangle-shaped junction is equipped with the connecting piece.
Wherein, a plurality of roller are evenly distributed on the inner wall and the inner bottom surface of the annular supporting plate, and the top surface and the inner side of the bottom surface of the annular supporting plate are both provided with limit grooves with annular structures.
The back plate comprises an inner back plate and an outer back plate, the inner back plate is formed by bending an integral iron plate, the outer back plate is formed by a plurality of small iron plates, and the outer back plate is fixedly connected with the outer frame and the sectional material.
The edge of the outer back plate is bent by 90 degrees or forms a semicircular structure, and the edge of the outer back plate is seamlessly spliced with the outer frame.
Wherein, a part on the roller shaft protrudes out of the inner wall and the inner side bottom surface of the annular supporting plate and is matched with the containing barrel.
The reflecting plate is of a symmetrical structure, the bottom surface of the reflecting plate is provided with a V-shaped groove, and the reflecting sheets are attached to two inclined surfaces of the V-shaped groove.
The diffusion sheet is 2mm in size, the brightness enhancement sheet and the reflection sheet are both 0.4mm in size, and the reflection sheets are arranged in a staggered mode.
The cross section of the section bar is of a square structure, and the section bar is made of aluminum.
The inner back plate is provided with a plurality of concave-convex grooves which are formed in a stamping mode and are of reinforcing rib structures, the inner back plate is fixedly connected with the section bar through a connecting piece, and the edge, close to the corner, of the inner back plate is connected with the outer frame through screws.
The LED light source is arranged on two sides of the reflector and reflects light to the inside of the reflector through the lampshade and enters the optical lens assembly through reflection of the reflector.
The top surface of reflector panel is equipped with the light guide plate, the light guide plate is with the leading-in light source uniform cross dispersion in reflector panel both ends, the light guide plate is two light ray conduction structures.
The surface of the liquid crystal panel is provided with explosion-proof tempered glass, and one side of the section bar, which is close to the liquid crystal panel, is provided with a vacancy avoiding position corresponding to a crystal coated film on the liquid crystal glass.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, an ultra-large area iron plate is fixed in the upper, lower and side directions by simulating the principle of triangle stability, and meanwhile, the triangle formed by the section bars conforms to the OD30DLED optical luminosity climbing principle and is accompanied by the clearance of the position of an ultra-large size liquid crystal glass COF; then a 90-degree square rectangular aluminum profile is arranged in the rectangular aluminum profile and serves as a connecting piece for connecting the profiles of the triangular structures, and meanwhile, a plurality of diffusion sheets, brightness enhancement sheets, reflection plates and optical components form an oversized liquid crystal product module, so that the cost of a large-scale die is saved, the early-stage investment cost of the product is greatly reduced, and a shortcut road is provided for the mass production of subsequent similar oversized liquid crystal products.
2. In the invention, because the section bars with the embedded triangular structure are connected in the attached bands, most of the dead weight of a product can be born by the section bars, the peripheries of the product are connected with finished product frames such as a TV, an advertising machine, a touch control integrated machine, a conference flat plate, a super blackboard and the like through screw hole positions, the thickness of the extended part connected to the outer frame is 3MM, the thickness of the whole machine is very thin, the whole effect of watching the whole body from the side and the back is designed into a rear shell, the edge of the whole large iron plate with the thickness of 2MM is bent by 90 degrees, so that the whole large iron plate becomes an inner back plate with certain strength, and meanwhile, the fixed modes such as lower fixing mode, side fixing mode and the like are connected with the section bars, so that the effect of one-time stamping of the same type large mould can be exceeded, an OD30 optical lens and a low-power LED lamp are adopted, and, and the two end sides of the reflector are both provided with LED light sources, so that the brightness can reach 1200cdm2The above.
Drawings
FIG. 1 is a schematic backside view of the present invention;
FIG. 2 is a side schematic view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic view of an optical lens assembly according to the present invention.
In the figure: 1. a liquid crystal panel; 2. an optical lens assembly; 201. a diffusion sheet; 202. a brightness enhancement film; 203. a reflective sheet; 204. a reflector; 205. an optical component; 206. a V-shaped groove; 207. a light guide plate; 3. a backlight source module; 301. a section bar; 302. a connecting member; 4. an outer frame; 5. a back plate; 501. an inner backplate; 502. an outer back panel; 6. an LED light source.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, the present invention provides the following technical solutions:
the utility model provides a straight following formula LED liquid crystal display panel's of oversized backlight unit, includes 1 optical lens subassembly 2 of liquid crystal display panel, backlight module 3, frame 4 and backplate 5, and 4 inboards of frame are located in proper order to liquid crystal display panel 1, optical lens subassembly 2 and backlight module 3, and backplate 5 is located frame 4 and keeps away from one side of liquid crystal display panel 1.
The optical lens assembly 2 includes a plurality of diffusion sheets 201, brightness enhancement sheets 202, reflectors 203, reflectors 204 and optical components 205, and the diffusion sheets 201, the brightness enhancement sheets 202, the reflectors 203, the reflectors 204 and the optical components 205 are combined to form a uniform backlight.
The backlight module 3 comprises a section 301 which is arranged on the back plate 5 and close to one side of the liquid crystal panel 1 and used for improving the stability of a product, the section 301 is arranged in a triangular shape, and a connecting piece 302 is arranged at the connecting position of the triangular shape.
Simulating the principle of triangle stability, fixing an ultra-large-area iron plate in an upper direction, a lower direction and a side direction, and simultaneously enabling a triangle formed by the section 301 to accord with the OD30DLED optical luminosity climbing principle and be accompanied with clearance of the position of an ultra-large-size liquid crystal glass COF; then a 90-degree square rectangular long aluminum profile is arranged in the connecting piece 302 for connecting the profiles 301 with the triangular structure.
Meanwhile, a plurality of diffusion sheets 201, brightness enhancement sheets 202, reflection sheets 203, reflection plates 204 and optical components 205 form a super-large liquid crystal product module with super-large size (for example, more than 100 inches), so that the cost of a large-scale die is saved, the early-stage investment cost of the product is greatly reduced, and a shortcut road is provided for the mass production of subsequent similar super-large liquid crystal products.
Because the section bar 301 of the embedded triangular structure is additionally connected with the inner part, most of the dead weight of the product can be born by the section bar 301, the periphery of the product is connected with finished product frames such as a TV, an advertisement player, a touch control all-in-one machine, a conference flat plate, a super blackboard and the like through screw hole positions, the thickness of the extending part connected with the outer frame is 3MM, the thickness of the whole machine is very thin, and the integral effect of watching the side surface and the back surface is designed into an integral rear shell.
The edge of the whole large iron plate with the thickness of 2MM is bent by 90 degrees, so that the large iron plate becomes an inner back plate 501 with certain strength, and meanwhile, the large iron plate is connected with the section bar 301 in a fixing mode of lower and side fixing modes, so that the effect of one-time stamping of the large mould can be exceeded.
An OD30 optical lens and a low-power LED lamp are adopted, a diffusion sheet 201 with the thickness of 2MM, various light intensifying sheets 202 with the thickness of 0.4MM and a reflection sheet 203 are combined to form a uniform backlight, and LED light sources 6 are arranged at two end sides of a reflection plate 204, so that the brightness can reach 1200cdm2The above.
Wherein, backplate 5 includes interior backplate 501 and outer backplate 502, and interior backplate 501 constitutes for integral iron plate is buckled, and outer backplate 502 is enough by a plurality of little iron plates, and outer backplate 502 and frame 4 and section bar 301 fixed connection for whole backplate 5 need not adopt large-scale mould punching press in the production and processing process, reduces and drops into earlier stage, and, through the design of being connected of interior backplate 501 and section bar 301, makes wholly more stable.
Wherein, the border of outer backplate 502 is buckled 90 or is formed the semicircle structure, and the border of outer backplate 502 and frame 4 seamless concatenation, and whole back and side look integrated design, and the outward appearance is succinct, levels, does not have inside and outside unsmooth sense.
The reflector 204 is a symmetrical structure, the bottom surface of the reflector 204 is provided with the V-shaped groove 206, and the reflector 203 is attached to the two inclined surfaces of the V-shaped groove 206, so that the light source can be guided into both sides of the reflector 204 due to the structural design of the reflector 204, and the brightness is further improved.
The diffusion sheet 201 is 2mm in size, the brightness enhancement sheet 202 and the reflection sheet 203 are both 0.4mm in size, the reflection sheets 203 are arranged in a staggered mode, and the diffusion sheet 201, the brightness enhancement sheet 202 and the reflection sheet 203 are matched with each other to further achieve brightness enhancement.
The cross section of the section 301 is of a square structure, the section 301 is made of aluminum, the strength of the aluminum structure is sufficient, the weight is light, and the overall weight can be reduced.
Wherein, the tongue and groove that has a plurality of punching press modes to form and be the strengthening rib structure on interior backplate 501, interior backplate 501 passes through connecting piece 302 and is connected fixedly with section bar 301, and interior backplate 501 is close to the border that the corner with pass through the screw and be connected with frame 4, guarantees interior backplate 501's structural strength, and the atress of interior backplate 501 is born by section bar 301 really.
Wherein, the both sides of reflector panel 204 all are equipped with LED light source 6, and LED light source 6 passes through the lamp shade with light reflection to the inside of reflector panel 204 to get into optical lens subassembly 2 through the reflection of reflector panel 204, the top surface of reflector panel 204 is equipped with light guide plate 207, light guide plate 207 with the leading-in even cross dispersion of light source in reflector panel 204 both ends, light guide plate 207 is two light conduction structures, make two sets of light source mutual noninterference, and enable luminance further to improve.
Wherein, the surface of liquid crystal display panel 1 is equipped with explosion-proof toughened glass, and one side that section bar 301 is close to liquid crystal display panel 1 is equipped with the clearance position of keeping away of covering crystal film on the corresponding liquid crystal display panel, guarantees that liquid crystal display panel 1's installation is safer, assembles into that power is higher, and section bar 301 reserves and keeps away the clearance position, avoids influencing the installation of inside device.
The working principle is as follows: simulating the principle of triangle stability, fixing an ultra-large-area iron plate in an upper direction, a lower direction and a side direction, and simultaneously enabling a triangle formed by the section 301 to accord with the OD30DLED optical luminosity climbing principle and be accompanied with clearance of the position of an ultra-large-size liquid crystal glass COF; then a 90-degree square rectangular long aluminum profile is arranged in the connecting piece 302 for connecting the profiles 301 with the triangular structure.
Meanwhile, a plurality of diffusion sheets 201, brightness enhancement sheets 202, reflection sheets 203, reflection plates 204 and optical components 205 form a super-large liquid crystal product module with super-large size (for example, more than 100 inches), so that the cost of a large-scale die is saved, the early-stage investment cost of the product is greatly reduced, and a shortcut road is provided for the mass production of subsequent similar super-large liquid crystal products.
Because the section bar 301 of the embedded triangular structure is additionally connected with the inner part, most of the dead weight of the product can be born by the section bar 301, the periphery of the product is connected with finished product frames such as a TV, an advertisement player, a touch control all-in-one machine, a conference flat plate, a super blackboard and the like through screw hole positions, the thickness of the extending part connected with the outer frame is 3MM, the thickness of the whole machine is very thin, and the integral effect of watching the side surface and the back surface is designed into an integral rear shell.
The edge of the whole large iron plate with the thickness of 2MM is bent by 90 degrees, so that the large iron plate becomes an inner back plate 501 with certain strength, and meanwhile, the large iron plate is connected with the section bar 301 in a fixing mode of lower and side fixing modes, so that the effect of one-time stamping of the large mould can be exceeded.
An OD30 optical lens and a low-power LED lamp are adopted, a diffusion sheet 201 with the thickness of 2MM, various light intensifying sheets 202 with the thickness of 0.4MM and a reflection sheet 203 are combined to form a uniform backlight, and LED light sources 6 are arranged at two end sides of a reflection plate 204, so that the brightness can reach 1200cdm2The above.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a straight following formula LED liquid crystal display panel's of oversized dimension backlight unit, includes liquid crystal display panel (1) optics lens subassembly (2), backlight module (3), frame (4) and backplate (5), frame (4) are inboard is located in proper order in liquid crystal display panel (1), optics lens subassembly (2) and backlight module (3), backplate (5) are located frame (4) and keep away from one side of liquid crystal display panel (1), its characterized in that:
the optical lens assembly (2) comprises a plurality of diffusion sheets (201), brightness enhancement sheets (202), reflection sheets (203), reflection plates (204) and optical components (205), and the diffusion sheets (201), the brightness enhancement sheets (202), the reflection sheets (203), the reflection plates (204) and the optical components (205) are combined to form a uniform backlight;
backlight module (3) are including locating backplate (5) and being close to liquid crystal display panel (1) one side and being used for improving product stability section bar (301), section bar (301) are triangle-shaped setting, and triangular junction is equipped with connecting piece (302).
2. The backlight module of the oversized direct type LED liquid crystal panel according to claim 1, characterized in that: the back plate (5) comprises an inner back plate (501) and an outer back plate (502), the inner back plate (501) is formed by bending an integral iron plate, the outer back plate (502) is formed by a plurality of small iron plates, and the outer back plate (502) is fixedly connected with the outer frame (4) and the section bar (301).
3. The backlight module of the oversized direct type LED liquid crystal panel according to claim 2, characterized in that: the edge of the outer back plate (502) is bent for 90 degrees or forms a semicircular arc structure, and the edge of the outer back plate (502) is seamlessly spliced with the outer frame (4).
4. The backlight module of the oversized direct type LED liquid crystal panel according to claim 1, characterized in that: the reflecting plate (204) is of a symmetrical structure, the bottom surface of the reflecting plate (204) is provided with a V-shaped groove (206), and the reflecting sheet (203) is attached to two inclined surfaces of the V-shaped groove (206).
5. The backlight module of the oversized direct type LED liquid crystal panel according to claim 1, characterized in that: the diffusion sheet (201) is 2mm in size, the brightness enhancement sheets (202) and the reflection sheets (203) are both 0.4mm in size, and the reflection sheets (203) are arranged in a staggered mode.
6. The backlight module of the oversized direct type LED liquid crystal panel according to claim 1, characterized in that: the cross section of the section bar (301) is of a square structure, and the section bar (301) is made of aluminum.
7. The backlight module of the oversized direct type LED liquid crystal panel according to claim 1, characterized in that: the inner back plate (501) is provided with a plurality of concave-convex grooves which are formed in a stamping mode and are of reinforcing rib structures, the inner back plate (501) is fixedly connected with the section bar (301) through the connecting piece (302), and the edge, close to the corner, of the inner back plate (501) is connected with the outer frame (4) through screws.
8. The backlight module of the oversized direct type LED liquid crystal panel according to claim 4, characterized in that: the LED lamp is characterized in that the LED light sources (6) are arranged on two sides of the reflecting plate (204), and the LED light sources (6) reflect light to the inside of the reflecting plate (204) through the lampshade and enter the optical lens assembly (2) through reflection of the reflecting plate (204).
9. The backlight module of the oversized direct type LED liquid crystal panel according to claim 4, characterized in that: the top surface of reflector panel (204) is equipped with light guide plate (207), light guide plate (207) are with the even cross dispersion of the leading-in light source in reflector panel (204) both ends, light guide plate (207) are two light conduction structures.
10. The backlight module of the oversized direct type LED liquid crystal panel according to claim 1, characterized in that: the surface of the liquid crystal panel (1) is provided with explosion-proof tempered glass, and one side of the section bar (301) close to the liquid crystal panel (1) is provided with a vacancy avoiding position corresponding to a crystal coated film on the liquid crystal glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019720.8A CN111190300A (en) | 2020-01-09 | 2020-01-09 | Backlight module of oversized direct type LED liquid crystal panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019720.8A CN111190300A (en) | 2020-01-09 | 2020-01-09 | Backlight module of oversized direct type LED liquid crystal panel |
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| CN111190300A true CN111190300A (en) | 2020-05-22 |
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| CN202010019720.8A Pending CN111190300A (en) | 2020-01-09 | 2020-01-09 | Backlight module of oversized direct type LED liquid crystal panel |
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Application publication date: 20200522 |