CN114442369A - Adopt energy-saving on-vehicle backlight of foldable design of FPC - Google Patents
Adopt energy-saving on-vehicle backlight of foldable design of FPC Download PDFInfo
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- CN114442369A CN114442369A CN202111643271.5A CN202111643271A CN114442369A CN 114442369 A CN114442369 A CN 114442369A CN 202111643271 A CN202111643271 A CN 202111643271A CN 114442369 A CN114442369 A CN 114442369A
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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
- G02F1/133603—Direct backlight with LEDs
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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
- G02F1/133605—Direct backlight including specially adapted reflectors
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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
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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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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- 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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
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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
- G02F1/133612—Electrical details
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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
- G02F1/133628—Illuminating devices with cooling means
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- Mathematical Physics (AREA)
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- Planar Illumination Modules (AREA)
Abstract
The invention discloses an energy-saving vehicle-mounted backlight adopting a FPC folding design, which relates to the technical field of electro-optics and comprises a vehicle-mounted backlight body, a middle frame, an FPC (flexible printed circuit) lamp strip and a lower frame, wherein the vehicle-mounted backlight body further comprises fixed glass foam cotton rubber, the middle frame is arranged at the bottom of the fixed glass foam cotton rubber, a clamping groove is formed in the outer surface of one side of the middle frame, a light control film is arranged at the bottom of the middle frame, a lower brightness enhancement film is arranged at the bottom of the light control film, a diffusion film is fixedly connected to the bottom of the lower brightness enhancement film, a light guide plate is arranged at the bottom of the diffusion film, a reflection film is fixedly connected to the bottom of the light guide plate, and the FPC lamp strip is arranged on the inner side of the middle frame And the luminous efficiency and the uniformity of the vehicle-mounted backlight source are improved, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of electro-optics, in particular to an energy-saving vehicle-mounted backlight adopting a FPC folding design.
Background
Along with the continuous development of automobile market, the on-vehicle backlight of trade competition is more and more violent, there is a large amount of wastes of material in traditional FPC structural design, and neotype design can promote the utilization ratio of material to reach the reduction of backlight cost, promote market competition, for this reason, the foldable design of FPC is used and is born, and at present, conventional on-vehicle display screen adopts straight following formula backlight or side light type backlight usually, and wherein the contrast and the color saturation and the demonstration fineness of the display screen that adopts straight following formula backlight are higher.
The prior art has the following defects: present side light formula FPC need be through the FPC winding displacement for the power supply of drive mainboard, but present FPC winding displacement need set up the base in addition and fix the FPC winding displacement, and the structure is complicated, and stability is not high, if not fixing then can be not hard up easily, causes contact failure, leads to damaging, and luminous light source's luminous efficacy is not high, and the light source is unstable, causes local dark phenomenon easily.
Therefore, there is a need for an energy-saving vehicle-mounted backlight adopting the FPC folding design.
Disclosure of Invention
Therefore, the invention provides an energy-saving vehicle-mounted backlight adopting an FPC folding design, which is characterized in that a bending part is arranged in a lamp strip frame in the horizontal direction inside the lamp strip frame, the folding angle of the bending part is 90 degrees, so that the lamp strip frame extends out of an FPC flat cable in the 90-degree direction of the bending part, the middle frame and the lower frame are made of aluminum alloy, and the lamp strip frame is made of a graphene plate, so that the problems in the background art are solved.
In order to achieve the above purpose, the invention provides the following technical scheme: an energy-saving vehicle-mounted backlight adopting FPC folding design comprises a vehicle-mounted backlight body, a middle frame, an FPC light bar and a lower frame, the vehicle-mounted backlight source body also comprises fixed glass foam rubber, a middle frame is arranged at the bottom of the fixed glass foam rubber, the outer surface of one side of the middle frame is provided with a clamping groove, the bottom of the middle frame is provided with a light control film, the bottom of the light control film is provided with a lower brightness enhancement film, the bottom of the lower brightness enhancement film is fixedly connected with a diffusion film, the bottom of the diffusion film is provided with a light guide plate, the bottom of the light guide plate is fixedly connected with a reflection film, the inner side of the middle frame is provided with an FPC light bar, the FPC light bar also comprises a light bar frame, the inner wall of one side of the light bar frame is provided with an LED light source, the two ends of the lamp strip frame are provided with bending parts, FPC flat cables are fixedly connected between the two groups of bending parts, the lower frame is installed to FPC lamp strip bottom, lower frame one side surface fixed connection buckle.
Preferably, the lower frame is clamped with the middle frame through a buckle arranged on the outer surface of one side of the lower frame and a clamping groove formed in the outer surface of one side of the middle frame.
Preferably, form the holding chamber between lower frame and the center, light control film, membrane, diffusion barrier, light guide plate, reflectance coating and FPC lamp strip are installed in the holding intracavity according to order down.
Preferably, a plurality of LED light sources are arranged on the inner wall of one side of the FPC light bar, and the FPC light bar is fixed to the top of the lower frame through heat conducting glue.
Preferably, the light control film, the lower brightness enhancement film, the diffusion film, the light guide plate, the reflection film and the FPC lamp strip are sequentially arranged on the inner side of the middle frame.
Preferably, the lamp strip frame is provided with the department of buckling in inside horizontal direction, and the fifty percent discount angle of department of buckling is 90, makes the lamp strip frame stretch out the FPC winding displacement through 90 directions in the department of buckling.
Preferably, FPC lamp strip includes lamp strip frame and a plurality of LED light source of electric connection on the lamp plate, and a plurality of LED light sources are the matrix and arrange, and the LED light source is fixed inboard at the lamp strip frame through heat-conducting glue.
Preferably, the middle frame and the lower frame are made of aluminum alloy, and the lamp strip frame is made of graphene plates.
The invention has the beneficial effects that:
1. the side wall of the lower frame is provided with a buckle matched with the clamping groove on the side surface of the middle frame, so that the middle frame and the lower frame can be conveniently buckled, and the assembly efficiency of the vehicle-mounted backlight module can be improved;
2. the light control film has smoother angle brightness distribution in a visible angle range, and can improve the uniformity of brightness distribution, the lower brightness enhancement film mainly has the functions of providing a uniform surface light source for a liquid crystal panel of a vehicle-mounted display screen, the light transmittance characteristic as high as possible is realized, the light characteristics are not influenced as much as possible, the effect of correcting a diffusion angle is mainly realized in a vehicle-mounted backlight source structure, the light radiation area is increased, the light intensity of a unit area is reduced, namely, the gray level is reduced, a light source can be changed into a secondary light source with larger area, better uniformity and stable chromaticity after being diffused by a diffusion material, the effect of diffusing light is realized, namely, the light can be diffused on the surface of the light guide plate, the light is softly and uniformly diffused by each angle when the light reaches each light guide point, the reflected light can be diffused by each angle, and then the reflecting condition is destroyed and emitted from the front surface of the light guide plate, the reflecting sheet is used for reflecting light exposed from the bottom surface back to the light guide plate to improve the use efficiency of the light, the light emitting efficiency is high and the power consumption is low under the condition of the same area light emitting brightness, the reflecting film is set to be a full dielectric reflecting film, the full dielectric reflecting film is established on the basis of multi-beam interference and is opposite to an anti-reflection film, and the reflectivity of the optical surface can be increased and the light emitting efficiency is improved by plating a film with the refractive index higher than that of a base material on the optical surface;
3. the light bar frame is folded at 90 degrees through the arranged bending part, the FPC flat cable extends out from the 90-degree direction through the bending part, the light bar frame extends out from the side edge and is bent in the horizontal direction in the inner part, the bending part arranged at the extending end is folded at 90 degrees, the FPC flat cable extends out from the vertical direction of the light bar frame, the FPC flat cable is fixed on the lower frame through the heat conducting glue at the bottom, the FPC flat cable is fixed, a base is not required to be additionally arranged to fix the FPC flat cable, and the backlight module has the advantages that materials are fully utilized, the stability of the FPC flat cable is improved, the market competitiveness of a backlight source is improved, and the backlight module is favorable for popularization;
4. the heat conducting glue has the advantage of good heat conductivity, and the heat that produces the LED light source is transmitted for good heat dissipation's graphite alkene board lamp strip frame through the heat conducting glue, carries out the heat transfer and dispels the heat for aluminum alloy center and lower frame and the inside air contact of vehicle-mounted display through graphite alkene board lamp strip frame, reaches a good radiating effect, reduces because the electric quantity loss that overheated arouses.
Drawings
FIG. 1 is a front view of the vehicular backlight body according to the present invention;
fig. 2 is a schematic view of the structure of the FPC light bar provided by the present invention;
FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;
fig. 4 is a schematic view of a rear view structure of the FPC light bar provided by the present invention.
In the figure: the vehicle-mounted backlight source comprises a vehicle-mounted backlight source body 100, fixed glass foam cotton 101, a middle frame 200, a clamping groove 201, a light control film 103, a lower brightness enhancement film 104, a diffusion film 105, a light guide plate 106, a reflection film 107, an FPC (flexible printed circuit) light bar 300, a light bar frame 301, an LED light source 302, a bending part 303, an FPC flat cable 304, a lower frame 400 and a buckle 401.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1-4, the invention provides an energy-saving vehicle-mounted backlight adopting an FPC folding design, and in order to achieve the above object, the invention provides the following technical solutions: an energy-saving vehicle-mounted backlight adopting an FPC folding design comprises a vehicle-mounted backlight body 100, a middle frame 200, an FPC light bar 300 and a lower frame 400, wherein the vehicle-mounted backlight body 100 further comprises fixed glass foam adhesive 101, the bottom of the fixed glass foam adhesive 101 is provided with the middle frame 200, the outer surface of one side of the middle frame 200 is provided with a clamping groove 201, the bottom of the middle frame 200 is provided with a light control film 103, the bottom of the light control film 103 is provided with a lower brightness enhancement film 104, the bottom of the lower brightness enhancement film 104 is fixedly connected with a diffusion film 105, the bottom of the diffusion film 105 is provided with a light guide plate 106, the bottom of the light guide plate 106 is fixedly connected with a reflecting film 107, the inner side of the middle frame 200 is provided with the FPC light bar 300, the FPC light bar 300 further comprises a light bar frame 301, the inner wall of one side of the light bar frame 301 is provided with an LED light source 302, two ends of the light bar frame 301 are provided with bending parts 303, an FPC flat cable 304 is fixedly connected in the middle of the bending parts 303, the lower frame 400 is provided with the lower frame 400, the outer surface of the lower frame 400 is fixedly connected with a buckle 401, specifically, the lateral wall of the lower frame 400 is provided with a buckle matched with the lateral clamping groove 201 of the middle frame 200, so that the middle frame 200 and the lower frame 400 can be buckled conveniently, and the assembly efficiency of the vehicle-mounted backlight module can be improved.
Further, the lower frame 400 is clamped with the middle frame 200 through a buckle 401 arranged on the outer surface of one side of the middle frame 200, an accommodating cavity is formed between the lower frame 400 and the middle frame 200, the light control film 103, the lower brightness enhancement film 104, the diffusion film 105, the light guide plate 106, the reflection film 107 and the FPC light bar 300 are sequentially arranged in the accommodating cavity, the inner wall of one side of the FPC light bar 300 is provided with a plurality of LED light sources 302, the FPC light bar 300 is fixed on the top of the lower frame 400 through heat conducting glue, the light control film 103, the lower brightness enhancement film 104, the diffusion film 105, the light guide plate 106, the reflection film 107 and the FPC light bar 300 are sequentially arranged inside the middle frame 200, specifically, the angle brightness distribution of the light control film 103 in the visual angle range is more gradual, the uniformity of the angle distribution can be further improved, the lower brightness enhancement film 104 mainly functions to provide a uniform surface light source for the liquid crystal panel of the vehicle-mounted display screen, and the light energy transmission characteristic as high as possible, the characteristic of light is not influenced as far as possible, the function of correcting diffusion angle is mainly played in the vehicle-mounted backlight structure, the light radiation area is increased, but the light intensity of unit area is reduced, namely the gray level is reduced, after the light-emitting light source is diffused by the diffusion material, the secondary light source with larger area, better uniformity and stable chromaticity can be changed, the function of diffusing light is played, namely the light can be diffused on the surface of the light source, the light can be softly and uniformly diffused, the light guide plate 106 is used for diffusing reflected light to each angle when the light reaches each light guide point, then the reflection condition is destroyed to be emitted from the front surface of the light guide plate, the light guide plate can uniformly emit light through various light guide points with different densities and sizes, the purpose of the reflector plate is to reflect the light exposed from the bottom surface back into the light guide plate, the use efficiency of the light is improved, under the condition of the same area of light-emitting brightness, the reflection film 107 is set as a full dielectric reflection film, which is established on the basis of multi-beam interference, and the reflection film is opposite to an antireflection film, and a film with a refractive index higher than that of a base material is plated on the optical surface, so that the reflectivity of the optical surface can be increased, and the light emitting efficiency is improved.
Further, lamp strip frame 301 is provided with department of buckling 303 in inside horizontal direction, the fifty percent discount angle of department of buckling 303 is 90, through the department of buckling 303 fifty percent discount 90 that sets up, make lamp strip frame 301 stretch out FPC winding displacement 304 from 90 directions through department of buckling 303, lamp strip frame 301 stretches out by the side, buckle in inside horizontal direction, buckle department 303 fifty percent discount 90 in the department of buckling that sets up in the department of stretching out, make lamp strip frame 301 vertical direction stretch out FPC winding displacement 304, FPC winding displacement 304 rethread bottom heat conduction glue is fixed on lower frame 400, fix FPC winding displacement 304, need not to set up the base in addition and fix FPC winding displacement 304, the advantage lies in the make full use of material, improve FPC winding displacement 304's steadiness, promote the market competition of backlight, do benefit to the popularization.
Further, FPC lamp strip 300 includes lamp strip frame 301 and a plurality of LED light source 302 of electric connection on the lamp plate, a plurality of LED light source 302 are the matrix and arrange, LED light source 302 is fixed in lamp strip frame 301 inboard through heat-conducting glue 21, the material of center 200 and lower frame 400 sets up to the aluminum alloy, the material of lamp strip frame 301 sets up to graphite alkene board, heat-conducting glue has the good advantage of heat conductivity, the heat that produces LED light source 302 transmits for good heat dissipation's graphite alkene board lamp strip frame 301 through heat-conducting glue, carry out through graphite alkene board lamp strip frame 301 and radiate the heat for aluminum alloy center 200 and lower frame 400 and the inside air contact of vehicle-mounted display and dispel the heat, reach a good radiating effect, reduce the electric quantity loss because overheated arouses.
The using process of the invention is as follows: the side wall of the lower frame 400 is provided with a buckle matched with the side clamping groove 201 of the middle frame 200, which is convenient for buckling the middle frame 200 and the lower frame 400, can improve the assembly efficiency of the vehicle-mounted backlight module, the angular brightness distribution of the light control film 103 in the visible angle range is smoother, and further the uniformity of the light brightness distribution can be improved, the lower brightness enhancement film 104 mainly has the function of providing a uniform surface light source for the liquid crystal panel of the vehicle-mounted display screen, the light transmission characteristic is as high as possible, the light characteristic is not influenced as much as possible, the function of correcting the diffusion angle is mainly played in the vehicle-mounted backlight structure, the light radiation area can be increased, but the light intensity of the unit area is reduced, namely, the gray level is reduced, after the light source is diffused by the diffusion material, the light source can become a secondary light source with larger area, the uniformity is better, the chromaticity is stable, the function of diffusing light, namely, the light can be scattered on the surface, the light is diffused softly and uniformly, the light guide plate 106 is used for diffusing the reflected light to all angles when the light irradiates each light guide point, then the reflected light is emitted from the front surface of the light guide plate under the condition of destroying the reflection condition, the light guide plate can uniformly emit light through various light guide points with different densities and sizes, the reflector plate is used for reflecting the light exposed from the bottom surface back into the light guide plate to improve the using efficiency of the light, under the condition of the same area light-emitting brightness, the light-emitting efficiency is high, the power consumption is low, the reflecting film 107 is set to be an all-electric medium reflecting film, the all-electric medium reflecting film is established on the basis of multi-beam interference and is opposite to an antireflection film, a film with the refractive index higher than that of a base material is plated on the optical surface, the reflectivity of the optical surface can be increased, the light-emitting efficiency is improved, the light bar frame 301 extends out of the flat cable 304 from the 90-shaped direction through the arranged bending part 303 which is folded to 90 degrees, light strip frame 301 is stretched out by the side, buckle in inside horizontal direction, buckle department 303 fifty percent discount 90 setting up at the department of stretching out, make light strip frame 301 vertical direction stretch out FPC winding displacement 304, FPC winding displacement 304 rethread bottom heat-conducting glue is fixed on lower frame 400, fix FPC winding displacement 304, need not to set up the base in addition and fix FPC winding displacement 304, the advantage lies in the make full use of material, improve FPC winding displacement 304's steadiness, promote the market competition of backlight, do benefit to the popularization, heat-conducting glue has the advantage that the heat conductivity is good, the heat that produces LED light source 302 is transmitted for good heat dissipation's graphite alkene board light strip frame 301 through heat-conducting glue, carry out heat transfer for aluminum alloy center 200 and lower frame 400 and the inside air contact of vehicle display dispels the heat through graphite alkene board light strip frame 301, reach a good radiating effect, reduce the electric quantity loss because overheated arouses.
The above is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it to an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides an adopt energy-conserving type vehicle-mounted backlight of foldable design of FPC, includes on-vehicle backlight body (100), center (200), FPC lamp strip (300) and lower frame (400), its characterized in that: the vehicle-mounted backlight source body (100) further comprises fixed glass foam rubber (101), a middle frame (200) is installed at the bottom of the fixed glass foam rubber (101), a clamping groove (201) is formed in the outer surface of one side of the middle frame (200), a light control film (103) is installed at the bottom of the middle frame (200), a light enhancement film (104) is installed at the bottom of the light control film (103), a light guide plate (106) is installed at the bottom of the light enhancement film (104) and a diffusion film (105), a light guide plate (106) is installed at the bottom of the diffusion film (105), a reflection film (107) is fixedly connected at the bottom of the light guide plate (106), an FPC light bar (300) is installed on the inner side of the middle frame (200), the FPC light bar (300) further comprises a light bar frame (301), an LED light source (302) is installed on the inner wall of one side of the light bar frame (301), bending positions (303) at the two ends of the light bar frame (301), and a bending position (303) for fixedly connecting FPC flat cable (304) in the middle, the FPC lamp strip (300) bottom is installed lower frame (400), lower frame (400) one side surface fixed connection buckle (401).
2. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: the lower frame (400) is clamped with the middle frame (200) through a buckle (401) arranged on the outer surface of one side and a clamping groove (201) formed in the outer surface of one side of the middle frame (200).
3. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: an accommodating cavity is formed between the lower frame (400) and the middle frame (200), and the light ray control film (103), the lower brightness enhancement film (104), the diffusion film (105), the light guide plate (106), the reflection film (107) and the FPC light bar (300) are sequentially arranged in the accommodating cavity.
4. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: the LED light source module is characterized in that a plurality of LED light sources (302) are arranged on the inner wall of one side of the FPC light bar (300), and the FPC light bar (300) is fixed to the top of the lower frame (400) through heat conducting glue.
5. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: the light control film (103), the lower brightness enhancement film (104), the diffusion film (105), the light guide plate (106), the reflection film (107) and the FPC lamp strip (300) are sequentially arranged on the inner side of the middle frame (200).
6. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: the lamp strip frame (301) is provided with a bending part (303) in the inner horizontal direction, the folding angle of the bending part (303) is 90 degrees, so that the lamp strip frame (301) extends out of the FPC flat cable (304) through the bending part (303) in the direction of 90 degrees.
7. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: FPC lamp strip (300) include lamp strip frame (301) and a plurality of LED light source (302) of electric connection on the lamp plate, and a plurality of LED light source (302) are the matrix and arrange, and LED light source (302) are fixed at lamp strip frame (301) inboard through heat-conducting glue 21.
8. The energy-saving vehicle-mounted backlight adopting the FPC folding design as claimed in claim 1, is characterized in that: the material of center (200) and lower frame (400) sets up to the aluminum alloy, the material of lamp strip frame (301) sets up to the graphite alkene board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111643271.5A CN114442369A (en) | 2021-12-30 | 2021-12-30 | Adopt energy-saving on-vehicle backlight of foldable design of FPC |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111643271.5A CN114442369A (en) | 2021-12-30 | 2021-12-30 | Adopt energy-saving on-vehicle backlight of foldable design of FPC |
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| CN114442369A true CN114442369A (en) | 2022-05-06 |
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| CN202111643271.5A Pending CN114442369A (en) | 2021-12-30 | 2021-12-30 | Adopt energy-saving on-vehicle backlight of foldable design of FPC |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206036782U (en) * | 2015-08-05 | 2017-03-22 | 惠州伟志电子有限公司 | Adopt on -vehicle backlight of foldable design of FPC |
| CN208312065U (en) * | 2018-04-18 | 2019-01-01 | 惠州伟志电子有限公司 | A kind of backlight of FPC structure resistant to bending |
| CN211627970U (en) * | 2019-12-28 | 2020-10-02 | 深圳市帝显电子有限公司 | Backlight module and vehicle-mounted display |
| CN212658918U (en) * | 2020-07-31 | 2021-03-05 | 深圳市景华显示科技有限公司 | Backlight FPC assembly, backlight module and liquid crystal display |
-
2021
- 2021-12-30 CN CN202111643271.5A patent/CN114442369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206036782U (en) * | 2015-08-05 | 2017-03-22 | 惠州伟志电子有限公司 | Adopt on -vehicle backlight of foldable design of FPC |
| CN208312065U (en) * | 2018-04-18 | 2019-01-01 | 惠州伟志电子有限公司 | A kind of backlight of FPC structure resistant to bending |
| CN211627970U (en) * | 2019-12-28 | 2020-10-02 | 深圳市帝显电子有限公司 | Backlight module and vehicle-mounted display |
| CN212658918U (en) * | 2020-07-31 | 2021-03-05 | 深圳市景华显示科技有限公司 | Backlight FPC assembly, backlight module and liquid crystal display |
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