CN105334668A - Laterally-incident-type backlight module and liquid crystal display device - Google Patents
Laterally-incident-type backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN105334668A CN105334668A CN201510901580.6A CN201510901580A CN105334668A CN 105334668 A CN105334668 A CN 105334668A CN 201510901580 A CN201510901580 A CN 201510901580A CN 105334668 A CN105334668 A CN 105334668A
- Authority
- CN
- China
- Prior art keywords
- back module
- entrance back
- side entrance
- guide plate
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- 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
Abstract
The invention provides a laterally-incident-type backlight module and a liquid crystal display device. The laterally-incident-type backlight module comprises a back plate, a light guide plate, a light bar and rubber frames. The back plate comprises a bottom wall; the light guide plate is arranged on the bottom wall and comprises a first side face, a light outgoing surface and a second side face corresponding to the first side face; the light bar is arranged on the bottom wall and located on the first side face of the light guide plate; the rubber frames are arranged at the three edges, without the light bar, of the periphery of the light guide plate; the light bar comprises a sapphire substrate, a plurality of LED chips formed on the sapphire substrate and a circuit for driving the multiple LED chips, wherein the circuit is formed on the sapphire substrate. The distance between the LED chips can be flexibly adjusted so that the effect of increasing the number of LED chips can be achieved.
Description
[technical field]
The present invention relates to a kind of backlight module and liquid crystal indicator, particularly a kind of backlight module and liquid crystal indicator.
[background technology]
Because liquid crystal panel itself is not luminous, the light source provided by backlight module is needed to carry out normal show image, therefore, one of backlight module key component becoming liquid crystal indicator.Backlight module is divided into side entrance back module and down straight aphototropism mode set two kinds according to the difference of light source incidence position.Down straight aphototropism mode set is by illuminating source such as cathodouminescence fluorescent tube (ColdCathodeFluorescentLamp, or light emitting diode (LightEmittingDiode CCFL), LED) be arranged on liquid crystal panel rear, direct forming surface light source is supplied to liquid crystal panel.And side entrance back module is back plate edges place backlight LED lamp bar (Lightbar) being located at liquid crystal panel proceeds posterolateral, the light that LED lamp bar sends is from light guide plate (LightGuidePlate, LGP) incidence surface of side enters light guide plate, penetrate from light guide plate exiting surface after reflection and diffusion, again via optical diaphragm group, be supplied to liquid crystal panel with forming surface light source.
In current backlight module, quantum dot (quantumdot, QD) film can be used to reach the display effect of high colour gamut, due to the corresponding raising of colour gamut, so require also can promote to backlight illumination.In order to promote backlight illumination, need in LED lamp bar, arrange LED chip as much as possible.Traditional LED lamp bar is beaten on FPC by LED chip through piece operation on flexible circuit plate (FPC).But due to the restriction of piece machine, a number for the LED chip that every bar FPC can carry is fixing, therefore want to accomplish the highlighted bottleneck restriction that will run into a number.
[summary of the invention]
One object of the present invention is to provide a kind of side entrance back module, and it, through the substrate of Sapphire Substrate as LED lamp bar, eliminates piece operation and FPC, can also increase the requirement that LED chip number reaches high brightness flexibly according to demand simultaneously.
Another object of the present invention is to provide a kind of liquid crystal indicator, and it adopts above-mentioned side entrance back module, eliminates piece operation and FPC, can also increase the requirement that LED chip number reaches high brightness flexibly according to demand simultaneously.
For solving the problem, the preferred embodiments of the present invention provide a kind of side entrance back module, comprise backboard, have a diapire; Light guide plate, is arranged on described diapire, has one first side, a light output surface, and second side corresponding with this first side; Lamp bar, to be arranged on diapire and to be positioned at described first side of described light guide plate; And glue frame, be arranged at three limits in described light guide plate surrounding without described lamp bar; Wherein said lamp bar comprises a Sapphire Substrate, is formed at the multiple LED chip in described Sapphire Substrate and drives the circuit of described multiple LED chip, and wherein said circuit is formed in described Sapphire Substrate.
In the side entrance back module of the preferred embodiment of the present invention, described side entrance back module also comprises multiple blooming, and described multiple blooming is arranged on the described light output surface of described light guide plate.Preferably, described multiple blooming comprises a quantum dot film.
In the side entrance back module of the preferred embodiment of the present invention, described backboard has a sidewall and extends from described sidewall one end roof at described lamp bar place, described roof is parallel with described diapire and form a spatial accommodation, described multiple LED chip in described spatial accommodation and described Sapphire Substrate be arranged on described diapire.Preferably, described side entrance back module also comprises one first reflecting plate, and described first reflecting plate is arranged between described multiple LED chip and described roof.In addition, described first reflecting plate part covers on the described light output surface of described light guide plate.
In the side entrance back module of the preferred embodiment of the present invention, described side entrance back module also comprises one second reflecting plate, between the described diapire that described second reflecting plate is arranged at described backboard and described light guide plate.
In the side entrance back module of the preferred embodiment of the present invention, described backboard has a sidewall at the described second side place of described light guide plate, has snap-in structure between described sidewall and described glue frame.
In the side entrance back module of the preferred embodiment of the present invention, described multiple LED chip has with the fluorescent powder of packaging plastic encapsulation.
Similarly, for solving the problem, another preferred embodiment of the present invention provides a kind of liquid crystal indicator, and it comprises the side entrance back module of above-described embodiment.
Relative to prior art, lamp strip adoption Sapphire Substrate of the present invention, eliminates FPC, and the spacing that can adjust flexibly between LED chip is to reach the effect increasing LED chip number.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below:
[accompanying drawing explanation]
Fig. 1 is the first side diagrammatic cross-section of the liquid crystal indicator of the preferred embodiments of the present invention;
Fig. 2 is the second side diagrammatic cross-section of the liquid crystal indicator of the preferred embodiments of the present invention;
Fig. 3 is the upper schematic diagram of the side entrance back module of the preferred embodiments of the present invention;
Fig. 4 is the diagrammatic cross-section of the lamp bar of the present embodiment.
[embodiment]
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.The direction term that the present invention mentions, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is in order to illustrate and to understand the present invention, and is not used to limit the present invention.
In the drawings, the unit that structure is similar represents with identical label.
With reference to the first side diagrammatic cross-section that figure 1 and Fig. 2, Fig. 1 are the liquid crystal indicator of the preferred embodiments of the present invention, Fig. 2 is the second side diagrammatic cross-section of the liquid crystal indicator of the preferred embodiments of the present invention.The liquid crystal indicator 100 of the present embodiment comprises display panel 20 and side entrance back module 30.The side entrance back module 30 of the present embodiment comprises backboard 32, light guide plate 34, lamp bar 36 and glue frame 38.
As shown in Figure 1, backboard 32 has a diapire 322.Described backboard 32 has a sidewall 324 and extends from described sidewall 324 one end roof 326 at described lamp bar 36 place, described roof 326 is parallel with described diapire 322 and form a spatial accommodation S.
As shown in Figures 1 and 2, light guide plate 34 is arranged on described diapire 32, and it has one first side 342, light output surface 344, and second side 346 corresponding with this first side 342.Lamp bar 36 to be arranged on diapire 322 and to be positioned at described first side 342 of described light guide plate 34.
Please refer to Fig. 3, Fig. 3 is the upper schematic diagram of the side entrance back module of the preferred embodiments of the present invention.Glue frame 38 is arranged at three limits in described light guide plate 34 surrounding without described lamp bar 36.Please also refer to Fig. 1 and Fig. 3, described lamp bar 36 comprises a Sapphire Substrate 362, is formed at the multiple LED chips 364 in described Sapphire Substrate 362 and drives the circuit 366 of described multiple LED chip 364, wherein said circuit 366 is formed in described Sapphire Substrate 362, and arbitrarily can lay LED chip 364 in Sapphire Substrate 362.The present embodiment LED chip 364 all can by metallochemistry vapour deposition process (Metal-OrganicChemicalVaporDeposition; MOCVD), molecular beam epitaxy (MolecularBeamEpitaxy; Or halide chemical vapor epitaxy (HydrideVaporPhaseEpitaxy MBE); Etc. HVPE) mode grows formation.
As shown in Figure 1, the spatial accommodation S that described multiple LED chip is formed in described roof 326 with described diapire 322, and described Sapphire Substrate 362 is arranged on described diapire 322.Referring again to Fig. 1, the side entrance back module 30 of the present embodiment also comprises one first reflecting plate 372, and described first reflecting plate 372 is arranged between described multiple LED chip 364 and described roof 326.The light that first reflecting plate 372 sends for reflecting LED chip 364, increases light utilization efficiency.Furthermore, described first reflecting plate 372 part covers on the described light output surface 344 of described light guide plate 34.In addition, the side entrance back module 30 of the present embodiment also comprises one second reflecting plate 374, between the described diapire 322 that described second reflecting plate 374 is arranged at described backboard 32 and described light guide plate 34.Second reflecting plate 374 for reflection by the light appeared bottom light guide plate 34, equally for increasing light extraction efficiency.
As shown in Figure 1, described side entrance back module 30 also comprises multiple blooming 39, and described multiple blooming 39 is arranged on the described light output surface 344 of described light guide plate 34, and wherein said multiple blooming 39 comprises a quantum dot film 392.In addition, blooming 39 also can comprise prismatic lens (prism), dual brightness enhancement film (DualBrightnessEnhancementFilm, and the brightness enhancement film (BrightnessEnhancementFilm, BEF) such as lenticule film (microlens) DBEF).
Referring again to Fig. 2, described backboard 32 has a sidewall 325 at described second side 34 place of described light guide plate 34, has snap-in structure 382 between described sidewall 325 and described glue frame 38.Snap-in structure 382 is for fixing backboard 32 and glue frame 28, and in this embodiment, snap-in structure 382 is that the mating holes that the outstanding post outside glue frame 38 is corresponding with on sidewall 325 is fitted together to mutually.But the present invention is not limited to this.
Please refer to Fig. 4, Fig. 4 is the diagrammatic cross-section of the lamp bar of the present embodiment.In this embodiment, described multiple LED chip 346 has with the fluorescent powder 347 of packaging plastic encapsulation.Fluorescent powder 347 produces and light for being excited, and then sends the light of predetermined color.
The liquid crystal indicator of the present invention is below described, as shown in Figures 1 and 2, liquid crystal indicator 100 comprises display panel 20 and above-mentioned side entrance back module 30.At assembling display panel 20 and above-mentioned side entrance back module 30, the glue frame 38 of lower polaroid bottom display panel 20 and backlight module 30 can be attached at by the two-sided lining band (rimtape) 25 all with stickiness.Described side entrance back module 30 comprises backboard 32, light guide plate 34, lamp bar 36 and glue frame 38.Backboard 32 has diapire 322.Light guide plate 34 is arranged on described diapire 322, and it has the first side 342, light output surface 344, and second side 346 corresponding with this first side 322.Lamp bar 36 to be arranged on diapire 322 and to be positioned at described first side 342 of described light guide plate 34.Glue frame 38 is arranged at three limits in described light guide plate 34 surrounding without described lamp bar 36.Lamp bar 36 comprises a Sapphire Substrate 362, is formed at the multiple LED chips 364 in described Sapphire Substrate 362 and drives the circuit 366 of described multiple LED chip 364, and wherein said circuit 366 is formed in described Sapphire Substrate 364.
In sum, lamp strip adoption Sapphire Substrate 362 of the present invention, eliminates FPC, and lays circuit 366 through in Sapphire Substrate 362, and the spacing that can adjust flexibly between LED chip 362 is to reach the object increasing LED chip number, and then increase luminosity.
Although the present invention discloses as above with preferred embodiment; but above preferred embodiment Bing is not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (10)
1. a side entrance back module, is characterized in that, comprising:
Backboard, has a diapire;
Light guide plate, is arranged on described diapire, has one first side, a light output surface, and second side corresponding with this first side;
Lamp bar, to be arranged on diapire and to be positioned at described first side of described light guide plate; And
Glue frame, is arranged at three limits in described light guide plate surrounding without described lamp bar;
Wherein said lamp bar comprises a Sapphire Substrate, is formed at the multiple LED chip in described Sapphire Substrate and drives the circuit of described multiple LED chip, and wherein said circuit is formed in described Sapphire Substrate.
2. side entrance back module according to claim 1, is characterized in that, described side entrance back module also comprises multiple blooming, and described multiple blooming is arranged on the described light output surface of described light guide plate.
3. side entrance back module according to claim 2, is characterized in that, described multiple blooming comprises a quantum dot film.
4. side entrance back module according to claim 1, it is characterized in that, described backboard has a sidewall and extends from described sidewall one end roof at described lamp bar place, described roof is parallel with described diapire and form a spatial accommodation, described multiple LED chip in described spatial accommodation and described Sapphire Substrate be arranged on described diapire.
5. side entrance back module according to claim 4, is characterized in that, described side entrance back module also comprises one first reflecting plate, and described first reflecting plate is arranged between described multiple LED chip and described roof.
6. side entrance back module according to claim 5, is characterized in that, described first reflecting plate part covers on the described light output surface of described light guide plate.
7. side entrance back module according to claim 1, is characterized in that, described side entrance back module also comprises one second reflecting plate, between the described diapire that described second reflecting plate is arranged at described backboard and described light guide plate.
8. side entrance back module according to claim 1, is characterized in that, described backboard has a sidewall at the described second side place of described light guide plate, has snap-in structure between described sidewall and described glue frame.
9. side entrance back module according to claim 1, is characterized in that, described multiple LED chip has with the fluorescent powder of packaging plastic encapsulation.
10. a liquid crystal indicator, is characterized in that, comprises the arbitrary described side entrance back module of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901580.6A CN105334668A (en) | 2015-12-08 | 2015-12-08 | Laterally-incident-type backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901580.6A CN105334668A (en) | 2015-12-08 | 2015-12-08 | Laterally-incident-type backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105334668A true CN105334668A (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901580.6A Pending CN105334668A (en) | 2015-12-08 | 2015-12-08 | Laterally-incident-type backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105334668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219397A1 (en) * | 2016-06-23 | 2017-12-28 | 深圳市华星光电技术有限公司 | Lcd display device, quantum dot based backlight module and manufacturing method therefor |
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| TW201337414A (en) * | 2012-01-30 | 2013-09-16 | Sharp Kk | Linear light source device, surface emitting device, and liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017219397A1 (en) * | 2016-06-23 | 2017-12-28 | 深圳市华星光电技术有限公司 | Lcd display device, quantum dot based backlight module and manufacturing method therefor |
| US10317601B2 (en) | 2016-06-23 | 2019-06-11 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display apparatus, backlight module based on quantum dots and method of manufacturing the same |
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Application publication date: 20160217 |
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| RJ01 | Rejection of invention patent application after publication |