CN105911753A - Backlight module and display device - Google Patents

Backlight module and display device Download PDF

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Publication number
CN105911753A
CN105911753A CN201610294627.1A CN201610294627A CN105911753A CN 105911753 A CN105911753 A CN 105911753A CN 201610294627 A CN201610294627 A CN 201610294627A CN 105911753 A CN105911753 A CN 105911753A
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CN
China
Prior art keywords
light source
light
diapire
backlight module
blue
Prior art date
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Granted
Application number
CN201610294627.1A
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Chinese (zh)
Other versions
CN105911753B (en
Inventor
贾丽丽
张宇
钟维
周昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Priority to CN201610294627.1A priority Critical patent/CN105911753B/en
Publication of CN105911753A publication Critical patent/CN105911753A/en
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Publication of CN105911753B publication Critical patent/CN105911753B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention relates to the technical field of display, in particular to a backlight module and a display device comprising the same. The backlight module comprises a light guide board and a light entrance box arranged opposite to the light entrance face of the light guide board. The light entrance box is provided with an open end. The light entrance face is arranged at the open end, and the open end is closed. A light source is arranged on the side wall of the light entrance box. The light emitting face of the light source faces the bottom wall of the light entrance box. The light emitting face and the bottom wall are arranged in an angle mode. Reflecting layers are arranged on the side wall and the bottom wall. Light emitted by the light source enters the light entrance face of the light guide plate by means of reflection of the reflecting layers on the bottom wall, accordingly, the light of the light source can enter the light entrance face of the light guide plate uniformly, and the situation that in an existing side entrance type backlight module, due to the overlarge distance between LEDs, the hotspot phenomenon is caused easily can be avoided.

Description

Backlight module and display device
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of backlight module and include this backlight The display device of module.
Background technology
In traditional side entrance back module (Back Light Unit, BLU) structure, luminous two Pole pipe (Light Emitting Diode, LED) linear arrangement, and it is arranged at the one of light guide plate Side is as incident light source.If the spacing between LED and LED is excessive, can be with LED position Put focus (Hotspot) phenomenon light and shade occurring alternately.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is easily because of LED and LED in side entrance back module Between spacing is excessive and the problem that causes Hotspot phenomenon.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of backlight module, including: lead What tabula rasa and the incidence surface with light guide plate were oppositely arranged enters light box, enters light box and has an open end, Incidence surface is located at open end and is closed by open end, is provided with light source, light on the sidewall enter light box The light-emitting area in source is towards entering the diapire of light box, and light-emitting area is angled with diapire arranges, sidewall and Reflecting layer it is equipped with on diapire.
According to the present invention, diapire is coated with scattering particles.
According to the present invention, during the scattering particles on diapire with the perpendicular bisector on the long limit of diapire is Mandrel becomes axial symmetry to be distributed, and the distribution density of the scattering particles on diapire is ρ1, and meet:
ρ 1 = K 1 1 φ ( x ) + K 10 , ( 0 ≤ x ≤ d 2 )
In formula, x is that the midpoint on the long limit with diapire is as initial point, with the extension side on the long limit of diapire To for the X-axis coordinate figure in the coordinate system of X-axis；D is the length on the long limit of diapire；φ (x) is The intensity distribution function of light source；K1And K10It is setting coefficient.
According to the present invention, light source is provided with two, and the sidewall into light box is located in two light source compartment of terrains On.
According to the present invention, light source includes red light source, green light source and blue-light source.
According to the present invention, the light-emitting area of blue-light source towards entering the sidewall of light box, and sidewall with It is coated with scattering particles on the first area that the light-emitting area of blue-light source is corresponding.
According to the present invention, the scattering particles on first area is with blue-light source on the first region Distribution in a center of symmetry centered by projection centre, the distribution density of the scattering particles on first area For ρ2, and meet:
ρ 2 = K 2 1 φ b 1 ( x , y ) + K 20 , ( 0 ≤ x ≤ d 2 , 0 ≤ y ≤ d 1 2 )
In formula, (x is y) to build with blue-light source projection centre on the first region for initial point The vertical coordinate in coordinate system；D is the greatest length of first area；d1Be first area Little length；φb1(x y) is the intensity distribution function of blue-light source；K2And K20It is setting system Number.
According to the present invention, sidewall is coated with scattering grain on the second area at blue-light source place Son.
According to the present invention, red light source, green light source and blue-light source are LASER Light Source.
According to the present invention, light source includes blue-light source and green light source；It is coated with on diapire Excite the quanta point material of HONGGUANG.
According to the present invention, the quanta point material on diapire with the perpendicular bisector on the long limit of diapire is Central shaft becomes axial symmetry to be distributed, and the distribution density of the quanta point material on diapire is ρ3, and full Foot:
ρ 3 = K 3 1 φ b 2 ( x ) + K 30 , ( 0 ≤ x ≤ d 2 )
In formula, x is that the midpoint on the long limit with diapire is as initial point, with the extension side on the long limit of diapire To for the X-axis coordinate figure in the coordinate system of X-axis；D is the length on the long limit of diapire；φb2(x) It it is the intensity distribution function of blue-light source；K3And K30It is setting coefficient.
Present invention also offers a kind of display device, including backlight module as above.
(3) beneficial effect
Backlight module that the technique scheme of the present invention provides and include the display of this backlight module Device has the advantage that
The backlight module of the present invention, by setting up into light box in the side of the incidence surface of light guide plate, And reflecting layer is set at the sidewall and diapire entering light box, light source is located on the sidewall of light box, Make the reflection in light reflecting layer on diapire that light source sends and incide light guide plate enter light Face, thus, can make light source uniform light incide the incidence surface of light guide plate, it is to avoid existing Have in side entrance back module easily because of between LED and LED spacing excessive and cause Hotspot Phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the backlight module of the embodiment of the present invention one；
Fig. 2 is the structural representation entering light box of the backlight module of the embodiment of the present invention one；
Fig. 3 is the structural representation entering light box of the backlight module of the embodiment of the present invention two.
In figure: 1: light guide plate；10: incidence surface；2: enter light box；201: diapire；202: The first side wall；203: the second sidewalls；204: the three sidewalls；205: the four sidewalls；3: light Source；31: red light source；32: green light source；33: blue-light source；4: scattering particles.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will knot Close the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, It is fully described by, it is clear that described embodiment is a part of embodiment of the present invention, and not It it is whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having There is on the premise of making creative work the every other embodiment obtained, broadly fall into the present invention The scope of protection.
Embodiment one
As depicted in figs. 1 and 2, a kind of embodiment of the backlight module of the present invention.Such as Fig. 1 institute Showing, the backlight module of the present embodiment one includes light guide plate 1 and enters light box 2.Light guide plate 1 have into Bright finish 10, the incidence surface 10 entering light box 2 and light guide plate 1 is oppositely arranged, and enters light box 2 and has one Open end, the incidence surface 10 of light guide plate 1 is located at the open end into light box 2, and incidence surface 10 The open end entering light box 2 is closed.As in figure 2 it is shown, enter light box there is diapire 201 and sidewall. Wherein, diapire 201 includes long limit that length is longer and the shorter minor face of length, and sidewall includes point It is not positioned at the first side wall 202 and second sidewall 203 at the two ends on long limit and lays respectively at minor face The 3rd sidewall 204 and the 4th sidewall 205 at two ends.In the present embodiment one, in the first side Wall 202 and the second sidewall 203 are provided with light source 3, and the light-emitting area of light source 3 is towards the end entering light box Wall 201, and the setting angled with diapire 201 of the light-emitting area of light source 3 so that light source 3 sends Light directive diapire 201.The sidewall entering light box 2 and diapire 201 are equipped with reflecting layer, make The reflection in the light of directive diapire 201 reflecting layer on diapire 201 and directive light guide plate 1 Incidence surface 10, the reflecting layer on sidewall then makes the light that light source 3 sends can be all incident Incidence surface 10 to light guide plate 1.Between light-emitting area and the diapire 201 entering light box 2 of light source 3 Angle be α, and meet: 0 ＜ α ＜ 90 °, such as α=60 °.Preferably, at the present embodiment one In, α=45 °, so that light directive after the reflection in reflecting layer on diapire 201 that light source 3 sends The best results of the incidence surface 10 of light guide plate 1.Light source 3 in the present embodiment one can be LED The white light source provided.The quantity of light source 3 could be arranged to multiple, multiple light source 3 compartment of terrains It is located on the sidewall of light box 2.Such as, the present embodiment one is provided with two light sources 3, two light sources 3 are separately positioned on the position that light box 2 sidewall is relative.
Further, in the present embodiment one, in order to enable light that light source 3 sends evenly Incide the incidence surface 10 of light guide plate 1, the diapire 201 enter light box 2 is coated with scattering Particle 4, plays the effect of uniformly diffusion with the light to directive diapire 201.Preferably, the end Scattering particles 4 on wall 201 axle centered by the perpendicular bisector on the long limit of diapire 201 becomes axle Symmetrical, to reach the effect of optimal uniform diffusing light.Specifically, at the present embodiment In one, the distribution density of the scattering particles 4 on diapire 201 is ρ1, and meet:
ρ 1 = K 1 1 φ ( x ) + K 10 , ( 0 ≤ x ≤ d 2 )
In formula, x is that the midpoint on the long limit with diapire 201 is as initial point, with the long limit of diapire 201 Bearing of trend is the X-axis coordinate figure in the coordinate system of X-axis；D is the length on the long limit of diapire 201 Degree；φ (x) is the intensity distribution function of light source 3；K1And K10It is setting coefficient.
The backlight module of the present embodiment one, is set up by the side of the incidence surface 10 at light guide plate 1 Enter light box 2, the sidewall entering light box 2 and diapire 201 are respectively provided with reflecting layer, and at diapire Coat scattering particles 4 on 201, light source 3 is located on the sidewall of light box 2 so that light source 3 The light sent enters equably through reflection and the scattering of scattering particles 4 in diapire 201 reflecting layer Be mapped to the incidence surface 10 of light guide plate 1, thus, can make light source 3 uniform light incide and lead The incidence surface 10 of tabula rasa 1, it is to avoid easily because of LED and LED in existing side entrance back module Between spacing excessive and cause Hotspot phenomenon.
Embodiment two
As it is shown on figure 3, the second embodiment of the backlight module of the present invention.The present embodiment two Backlight module is essentially identical with embodiment one, and something in common repeats no more, and difference is, The light source of the present embodiment two include being located at the first side wall 202 into light box 2 red light source 31, It is located at the green light source 32 of the second sidewall 203 and is located at the blue-light source of the 3rd sidewall 204 33, the light-emitting area of blue-light source 33 is towards the 4th sidewall 205.In the present embodiment two, the 4th Sidewall 205 is into the sidewall of light box 2 firstth district corresponding with the light-emitting area of blue-light source 33 Territory.Be coated with scattering particles on 4th sidewall 205, the scattering particles on the 4th sidewall 205 with Blue-light source 33 on the 4th sidewall 205 be projected as revenue centre centered by a center of symmetry point Cloth, the distribution density of the scattering particles on the 4th sidewall 205 is ρ2, and meet:
ρ 2 = K 2 1 φ b 1 ( x , y ) + K 20 , ( 0 ≤ x ≤ d 2 , 0 ≤ y ≤ d 1 2 )
In formula, (x is y) to be with the blue-light source 33 projection centre on the 4th sidewall 205 Initial point, with the bearing of trend on the longer long limit of the 4th sidewall 205 length as X-axis, with the 4th side The bearing of trend of the minor face that wall 205 length is shorter is the coordinate in the coordinate system of Y-axis；D is The length on the long limit of four sidewalls 205；d1It is the length of the minor face of the 4th sidewall 205；φb1(x, Y) it is the intensity distribution function of blue-light source 33；K2And K20It is setting coefficient.
Thus, blue ray directive the 4th sidewall 205 that blue-light source 33 sends, and through the 4th The scattering of the scattering particles on sidewall 205 and the red light that sends with red light source 31 and green The incidence surface 10 of light guide plate 1 is incided after the green light mixing that light source 32 sends, it is possible to achieve The display of high colour gamut.
Further, in the present embodiment two, the 3rd sidewall 204 is also coated with being uniformly distributed Scattering particles so that the blue ray that blue-light source 33 sends can be with red light source 31 The green light that the red light gone out and green light source 32 send incides after being sufficiently mixed equably The incidence surface 10 of light guide plate 1.In the present embodiment two, the 3rd sidewall 204 is blue-light source The second area at 33 places
Further, in the present embodiment two, red light source 31, green light source 32 and blue light Source 33 can be the pure color light source that LED provides, it is also possible to for LASER Light Source.Preferably, red Color light source 31, green light source 32 and blue-light source 33 are the LASER Light Source of pure color, thus may be used Realize the display of the superelevation colour gamut of BT2020 standard.
Embodiment three
Embodiment three provides the third embodiment of the backlight module of the present invention.The present embodiment three Backlight module essentially identical with embodiment one, something in common repeats no more, and difference exists In, the light source of the present embodiment three includes the blue-light source being located at the first side wall 202 into light box 2 Be located at the green light source of the second sidewall 203, and be coated with exciting red on diapire 201 The quanta point material of light.In the present embodiment three, blue-light source and green light source can be LED The pure color light source provided, it is also possible to for the LASER Light Source of pure color.Quanta point material can be selenizing The material such as zinc or cadmium sulfide, a diameter of 6nm of quanta point material.Quantum dot on diapire 201 Material axle centered by the perpendicular bisector on the long limit of diapire 201 becomes axial symmetry to be distributed, diapire The distribution density of the quanta point material on 201 is ρ3, and meet:
ρ 3 = K 3 1 φ b 2 ( x ) + K 30 , ( 0 ≤ x ≤ d 2 )
In formula, x is that the midpoint on the long limit with diapire 201 is as initial point, with the long limit of diapire 201 Bearing of trend is the X-axis coordinate figure in the coordinate system of X-axis；D is the length on the long limit of diapire 201 Degree；φb2X () is the intensity distribution function of blue-light source；K3And K30It is setting coefficient.
Thus, the backlight module of the present embodiment three is sent by blue-light source blue ray, green The HONGGUANG that quanta point material on green light that color light source sends and diapire 201 excites is the most mixed The incidence surface 10 of light guide plate 1 is incided, it is possible to achieve the display of high colour gamut after conjunction.
Embodiment four
Embodiment four provides a kind of display device, and the display device of the present embodiment four includes implementing Any one backlight module in example one, embodiment two or embodiment three.
In sum, the above embodiment of the present invention provide backlight module and include this backlight mould The display device of group, by setting up into light box 2 in the side of the incidence surface 10 of light guide plate 1, Enter and be respectively provided with reflecting layer on the sidewall of light box 2 and diapire 201, light source 3 is located at into light box 2 Sidewall on so that the light that light source 3 sends incides through the reflection in diapire 201 reflecting layer The incidence surface 10 of light guide plate 1, thus, can make light source 3 uniform light incide light guide plate The incidence surface 10 of 1, it is to avoid in existing side entrance back module easily because of LED Yu LED it Between spacing excessive and cause Hotspot phenomenon.
Last it is noted that above example is only in order to illustrate technical scheme, and Non-to its restriction；Although the present invention being described in detail with reference to previous embodiment, ability The those of ordinary skill in territory is it is understood that it still can be to the skill described in foregoing embodiments Art scheme is modified, or wherein portion of techniques feature is carried out equivalent；And these are repaiied Change or replace, not making the essence of appropriate technical solution depart from various embodiments of the present invention technical side The spirit and scope of case.

Claims (12)

1. a backlight module, it is characterised in that including: light guide plate and with described light guide plate Incidence surface be oppositely arranged enter light box, described in enter light box there is an open end, described incidence surface Be located at described open end and described open end closed, described enter light box sidewall on be provided with light Source, the light-emitting area of described light source towards described enter light box diapire, and described light-emitting area is with described Diapire is angled to be arranged, and described sidewall and described diapire are equipped with reflecting layer.
Backlight module the most according to claim 1, it is characterised in that on described diapire It is coated with scattering particles.
Backlight module the most according to claim 2, it is characterised in that on described diapire Scattering particles axle centered by the perpendicular bisector on the long limit of described diapire becomes axial symmetry to be distributed, institute The distribution density stating the scattering particles on diapire is ρ1, and meet:
ρ 1 = K 1 1 φ ( x ) + K 10 , ( 0 ≤ x ≤ d 2 )
In formula, x is that the midpoint on the long limit with described diapire is as initial point, with the long limit of described diapire The coordinate system that bearing of trend is X-axis on X-axis coordinate figure；D is the long limit of described diapire Length；φ (x) is the intensity distribution function of described light source；K1And K10It is setting coefficient.
Backlight module the most according to claim 1, it is characterised in that described light source is provided with Two, two described light source compartment of terrains be located at described in enter on the sidewall of light box.
Backlight module the most according to claim 1, it is characterised in that described light source includes Red light source, green light source and blue-light source.
Backlight module the most according to claim 5, it is characterised in that described blue-light source Light-emitting area towards described enter light box sidewall, and described sidewall with described blue-light source send out It is coated with scattering particles on the first area that bright finish is corresponding.
Backlight module the most according to claim 6, it is characterised in that described first area On scattering particles become centered by described blue-light source projection centre on described first area Centrosymmetry is distributed, and the distribution density of the scattering particles on described first area is ρ2, and full Foot:
ρ 2 = K 2 1 φ b 1 ( x , y ) + K 20 , ( 0 ≤ x ≤ d 2 , 0 ≤ y ≤ d 1 2 )
In formula, (x is y) with described blue-light source projection centre on described first area For the coordinate in the coordinate system that initial point is set up；D is the greatest length of described first area；d1It is The minimum length of described first area；φb1(x y) is the light distribution letter of described blue-light source Number；K2And K20It is setting coefficient.
Backlight module the most according to claim 6, it is characterised in that described sidewall is in institute State and be coated with scattering particles on the second area at blue-light source place.
Backlight module the most according to claim 5, it is characterised in that described red light Source, described green light source and described blue-light source are LASER Light Source.
Backlight module the most according to claim 4, it is characterised in that described light source bag Include blue-light source and green light source；It is coated with exciting the quantum dot material of HONGGUANG on described diapire Material.
11. backlight modules according to claim 10, it is characterised in that on described diapire Quanta point material axle centered by the perpendicular bisector on the long limit of described diapire become axial symmetry to divide Cloth, the distribution density of the quanta point material on described diapire is ρ3, and meet:
ρ 3 = K 3 1 φ b 2 ( x ) + K 30 , ( 0 ≤ x ≤ d 2 )
In formula, x is that the midpoint on the long limit with described diapire is as initial point, with the long limit of described diapire The coordinate system that bearing of trend is X-axis on X-axis coordinate figure；D is the long limit of described diapire Length；φb2X () is the intensity distribution function of described blue-light source；K3And K30It is setting system Number.
12. 1 kinds of display devices, it is characterised in that include as any in claim 1 to 11 One described backlight module.
CN201610294627.1A 2016-05-05 2016-05-05 Backlight module and display device Expired - Fee Related CN105911753B (en)

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CN113947996A (en) * 2021-09-28 2022-01-18 常州亚玛顿股份有限公司 Backlight module

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KR20070072176A (en) * 2005-12-30 2007-07-04 엘지.필립스 엘시디 주식회사 Back light unit in thin film transistor-crystal display device
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113947996A (en) * 2021-09-28 2022-01-18 常州亚玛顿股份有限公司 Backlight module
CN113947996B (en) * 2021-09-28 2024-03-26 常州亚玛顿股份有限公司 Backlight module

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