CN105867028A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN105867028A CN105867028A CN201610461535.8A CN201610461535A CN105867028A CN 105867028 A CN105867028 A CN 105867028A CN 201610461535 A CN201610461535 A CN 201610461535A CN 105867028 A CN105867028 A CN 105867028A
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- Prior art keywords
- backlight module
- substrate
- transmission region
- light
- adjustable area
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- 239000000758 substrate Substances 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000007639 printing Methods 0.000 claims description 18
- 238000010276 construction Methods 0.000 claims description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to the technical field of display, in particular to a backlight module and a display device. The backlight module comprises a substrate and enclosing plates which are arranged on the substrate; the enclosing plates and the substrate are encircled to form a plurality of grooves; a light source is arranged in each groove; a controllable light transmission structure is arranged at the notch of each groove; a liquid lens is arranged above the controllable light transmission structures; each controllable light transmission structure comprises a transparent area and an adjustable area; in a normal viewing angle mode, the adjustable areas and the transparent areas are permeable to light; in a collimation backlight mode, the transparent areas are permeable to light while the adjustable areas are light-proof; the focus of the liquid lens coincides with the transparent areas. The backlight module provided by the invention is compatible in the normal viewing angle mode and the collimation backlight mode, and moreover, the collimation of the backlight in the collimation backlight mode is higher.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of backlight module and display device.
Background technology
The multiple views 3D being currently based on collimated back shows, and diffraction light splitting shows the most in the industry cycle
Rise, and how providing the backlight that collimating effect is good is also that we are in one of difficult problem captured.
The backlight module of liquid crystal display is typically by LED, reflector plate, light guide plate, diffusion at present
Film and prism film are constituted, and site micro structure is arranged at the bottom of light guide plate, can destroy side incident illumination
Line total reflection in light guide plate, the light shone on the downside of light guide plate reflector plate is reflected
After, present the light that all directions dissipate, it is impossible to accomplish the most completely parallel collimation of all light
Backlight.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is how to realize backlight module both can realize commonly regarding
The problem that angle mould formula can also realize collimated back pattern.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of backlight module, including substrate
Substrate and be located at the coaming plate on described underlay substrate, described coaming plate encloses with described underlay substrate and sets
Forming multiple groove, be equipped with light source in each described groove, the notch of each described groove is provided with controlled
Translucent construction, described controlled translucent construction be also arranged above liquid lens；Described controlled printing opacity
Structure includes transmission region and adjustable area；Under common view angle pattern, described adjustable area and
The equal printing opacity of transmission region；Under collimated back pattern, described transmission region printing opacity, described adjustable
Region is light tight；The focus of described liquid lens coincides with described transmission region.
According to the present invention, described controlled translucent construction includes the upper polaroid set gradually, upper base
Plate, liquid crystal layer, infrabasal plate and lower polaroid, upper substrate corresponding to described transmission region and under
The first electrode group it is relatively set with, upper substrate that described adjustable area is corresponding and infrabasal plate on substrate
On be relatively set with the second electrode group.
According to the present invention, make by adjusting the voltage of described first electrode group and the second electrode group
Corresponding region liquid crystal molecule deflection, it is achieved described transmission region and adjustable under common view angle pattern
The equal printing opacity in region；Described adjustable area is realized light tight under collimated back pattern.
According to the present invention, described light source is LED light source.
According to the present invention, described light source includes LED chip and fluorescent glue, and described fluorescent glue covers
In described LED chip.
According to the present invention, described LED chip is arranged on underlay substrate.
According to the present invention, between described underlay substrate and described LED chip, it is provided with cushion.
According to the present invention, described cushion is graphene layer.
According to the present invention, two adjacent described grooves share a coaming plate.
According to the present invention, the wall of described coaming plate is provided with high reflecting coating.
Present invention also offers a kind of display device, including above-mentioned backlight module.
(3) beneficial effect
The technique scheme of the present invention compared with prior art has the advantage that the present invention is real
The backlight module executing example offer can be by coming the control of controlled translucent construction and liquid lens
Realize common view angle and collimated back both of which, and it is complete to realize light during collimated back pattern
Portion is penetrated through liquid lens by the focal point of liquid lens, and the light of all injections is flat
Row light, it is ensured that the high collimation of light.
Accompanying drawing explanation
Fig. 1 is the structural representation of backlight module under the common view angle pattern that the embodiment of the present invention provides
Figure；
Fig. 2 is the structural representation of backlight module under the common view angle pattern that the embodiment of the present invention provides
Figure；
Fig. 3 is the sectional view of the controlled translucent construction that the embodiment of the present invention provides；
Fig. 4 is the top view of the controlled translucent construction that the embodiment of the present invention provides.
In figure: 1: underlay substrate；2: coaming plate；21: high reflecting coating；3: groove；4: light
Source；41:LED chip；42: fluorescent glue；43: cushion；5: controlled translucent construction；51:
Transmission region；52: adjustable area；501: upper polaroid；502: upper substrate；503: liquid crystal
Layer；504: infrabasal plate；505: lower polaroid；6: liquid lens；61: chock insulator matter.
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.
As depicted in figs. 1 and 2, a kind of backlight module that the embodiment of the present invention provides, including lining
Substrate 1 and the coaming plate 2 being located on underlay substrate 1, specifically, the substrate in the present embodiment
Substrate 1 is preferably glass substrate.Coaming plate 2 and underlay substrate 1 enclose and set the multiple grooves 3 of formation, each
Being equipped with light source 4 in groove 3, the notch of each groove 3 is provided with controlled translucent construction 5, controlled printing opacity
Structure 5 be also arranged above liquid lens 6.Controlled translucent construction 5 includes transmission region 51 He
Adjustable area 52；Under common view angle pattern, adjustable area 52 and the equal printing opacity of transmission region 51；
Under collimated back pattern, transmission region 51 printing opacity, adjustable area 52 is light tight；Liquid is saturating
The focus of mirror 6 coincides with transmission region 51.Those skilled in the art can select as required
The kind of liquid lens 6, the liquid lens 6 selected in the present embodiment is for using electrowetting principle
Liquid lens.When the on-load voltage of liquid lens 6 is zero, liquid lens 6 is equivalent to general
Logical glass-encapsulated layer, now controls adjustable area 52 and the transmission region of controlled translucent construction 5
51 equal printing opacities, the light that light source 4 is sent can directly penetrate in common view angle, backlight module
It is in common view angle pattern.When the on-load voltage of liquid lens 6 is adjusted to setting value (setting value
It is not zero) time, liquid lens 6 plays the effect of convex lens, now controls controlled translucent construction 5
Adjustable area 52 light tight, the light that light source 4 is sent is mapped to merely through transmission region 51
On liquid lens 6, owing to the focus of transmission region 51 with liquid lens 6 coincides, it is irradiated to
Light on liquid lens 6 penetrates with the form of directional light, and backlight module is in collimated back mould
Formula.The backlight module that the embodiment of the present invention provides can be by controlled translucent construction 5 and liquid
The control of body lens 6 realizes common view angle and collimated back both of which, and realizes collimation
During backlight mode, light is all penetrated through liquid lens 6 by the focal point of liquid lens 6,
The light of all injections is directional light, it is ensured that the high collimation of light.
Further, the controlled translucent construction 5 in the present embodiment includes the upper polarisation set gradually
Sheet 501, upper substrate 502, liquid crystal layer 503, infrabasal plate 504 and lower polaroid 505, thoroughly
The first electrode group it is relatively set with on the upper substrate 502 of light region 51 correspondence and infrabasal plate 504,
The second electrode group it is relatively set with on the upper substrate 502 of adjustable area 52 correspondence and infrabasal plate 504.
Make corresponding region liquid crystal molecule inclined by adjusting the voltage of the first electrode group and the second electrode group
Turn, it is achieved transmission region 51 and the equal printing opacity of adjustable area 52 under common view angle pattern；In standard
Adjustable area 52 is realized light tight under straight backlight mode.Specifically, arrange according to liquid crystal molecule
There are two kinds of different situations in the control of difference, the first electrode group and the second electrode group: the first
In the case of the first electrode group of transmission region 51 to be always maintained at voltage be setting value, thus drive thoroughly
The liquid crystal molecule in light region 51 deflects, it is achieved transmission region 51 continues printing opacity, adjustable district
Adjustable area 52 printing opacity when the voltage of the second electrode group in territory 52 is setting value, the second electrode group
Voltage when being zero adjustable area 52 light tight.In the case of the second, different from the first situation
Place be, change the default yawing moment of liquid crystal molecule of liquid crystal layer, to realize working as printing opacity
The first electrode group in region 51 keeps voltage when being zero, transmission region 51 can a direct transmission light,
Adjustable area 52 printing opacity when second electrode group voltage of adjustable area 52 is zero, the second electrode group
Voltage when being setting value, the liquid crystal molecule of adjustable area 52 deflects, adjustable area 52
Light tight, it addition, be not required to making alive i.e. light-permeable due to transmission region 51 in the latter case,
Therefore save the setting of transmission region 51 first electrode group it is also possible that transmission region 51 always
Printing opacity.
Further, the light source 4 in the present embodiment is LED light source.The luminous effect of LED light source
Rate is high.Preferably, the light source 4 in the present embodiment includes LED chip 41 and fluorescent glue 42,
Fluorescent glue 42 covers in LED chip 41.Employing LED chip 41 is as light source, permissible
Meet light source 4 and pixel cell one_to_one corresponding, go out light more uniform.Fluorescent glue 42 is mainly
Fluorescent material and the mixture of silica gel, fluorescent glue 42 can directly be put and drip to above LED chip 41
Whole LED chip 41 being coated, the color of the light LED chip 41 to be sent is made into institute
The color needed.LED chip 41 surface covers fluorescent glue 42 can improve luminous efficiency.
Further, the LED chip 41 in the present embodiment is arranged on underlay substrate 1.Tool
Body ground, is provided with cushion 43 between underlay substrate 1 and LED chip 41 in the present embodiment.
In the present embodiment, cushion 43 is preferably graphene layer.Cushion 43 is set and is conducive to LED core
The support of sheet 41 and fixing, it should be noted that cushion 43 is not limited to graphene layer,
Can also be that sapphire material is formed.
Further, adjacent two groove 3 in the present embodiment shares a coaming plate 2.Adjacent two
Individual groove 3 shares a coaming plate 2 can simplify structure, reduces the spacing between two grooves 3 so that
It is more uniform that backlight module entirety goes out light.Specifically, above each coaming plate 2 in the present embodiment
It is correspondingly provided with chock insulator matter 61, is used for supporting liquid lens 6.
Further, the wall of the coaming plate 2 in the present embodiment is provided with high reflecting coating 21.If
Set high reflecting coating 21 and can improve the utilization rate that light source 4 emits beam.
The embodiment of the present invention additionally provides a kind of display device, including above-mentioned backlight module.The back of the body
The projection on the display floater of display device of the coaming plate 2 of light module is positioned at black matrix at display surface
In projection on plate.Backlight module can compatible common view angle pattern and collimated back pattern, and
And under collimated back pattern, the collimation of backlight is high, can promote the performance of display device.
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 (11)
1. a backlight module, it is characterised in that: include underlay substrate and be located at described substrate
Coaming plate on substrate, described coaming plate and described underlay substrate enclose and set the multiple grooves of formation, each described
Being equipped with light source in groove, the notch of each described groove is provided with controlled translucent construction, described controlled
Photo structure be also arranged above liquid lens；
Described controlled translucent construction includes transmission region and adjustable area；
Under common view angle pattern, described adjustable area and the equal printing opacity of transmission region；
Under collimated back pattern, described transmission region printing opacity, described adjustable area is light tight；
The focus of described liquid lens coincides with described transmission region.
Backlight module the most according to claim 1, it is characterised in that: described controlled printing opacity
Structure includes upper polaroid, upper substrate, liquid crystal layer, infrabasal plate and the lower polarisation set gradually
It is relatively set with the first electrode group on sheet, upper substrate that described transmission region is corresponding and infrabasal plate,
It is relatively set with the second electrode group on upper substrate that described adjustable area is corresponding and infrabasal plate.
Backlight module the most according to claim 2, it is characterised in that: described by adjusting
The voltage of the first electrode group and the second electrode group makes corresponding region liquid crystal molecule deflection, it is achieved
Described transmission region and the equal printing opacity of adjustable area under common view angle pattern；Under collimated back pattern
Realize described adjustable area light tight.
Backlight module the most according to claim 1, it is characterised in that: described light source is LED
Light source.
Backlight module the most according to claim 4, it is characterised in that: described light source includes
LED chip and fluorescent glue, described fluorescent glue covers in described LED chip.
Backlight module the most according to claim 5, it is characterised in that: described LED core
Sheet is arranged on underlay substrate.
Backlight module the most according to claim 6, it is characterised in that: described underlay substrate
And it is provided with cushion between described LED chip.
Backlight module the most according to claim 7, it is characterised in that: described cushion is
Graphene layer.
Backlight module the most according to claim 1, it is characterised in that: two adjacent institutes
State groove and share a coaming plate.
Backlight module the most according to claim 9, it is characterised in that: described coaming plate
Wall is provided with high reflecting coating.
11. 1 kinds of display devices, it is characterised in that: include such as any one of claim 1-10 institute
The backlight module stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461535.8A CN105867028B (en) | 2016-06-23 | 2016-06-23 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461535.8A CN105867028B (en) | 2016-06-23 | 2016-06-23 | A kind of backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105867028A true CN105867028A (en) | 2016-08-17 |
| CN105867028B CN105867028B (en) | 2018-11-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610461535.8A Expired - Fee Related CN105867028B (en) | 2016-06-23 | 2016-06-23 | A kind of backlight module and display device |
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Cited By (3)
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|---|---|---|---|---|
| CN108563072A (en) * | 2018-03-02 | 2018-09-21 | 友达光电股份有限公司 | Backlight module and display device |
| CN108803149A (en) * | 2018-07-20 | 2018-11-13 | 京东方科技集团股份有限公司 | Area source and preparation method thereof and liquid crystal display device |
| CN109493746A (en) * | 2018-12-29 | 2019-03-19 | 厦门天马微电子有限公司 | Display panel and display device |
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| CN108563072B (en) * | 2018-03-02 | 2021-03-23 | 友达光电股份有限公司 | Backlight module and display device |
| CN108803149A (en) * | 2018-07-20 | 2018-11-13 | 京东方科技集团股份有限公司 | Area source and preparation method thereof and liquid crystal display device |
| CN108803149B (en) * | 2018-07-20 | 2021-05-25 | 京东方科技集团股份有限公司 | Surface light source, manufacturing method thereof and liquid crystal display device |
| US11454845B2 (en) | 2018-07-20 | 2022-09-27 | Beijing Boe Display Technology Co., Ltd. | Surface light source, manufacturing method thereof and liquid crystal display device |
| CN109493746A (en) * | 2018-12-29 | 2019-03-19 | 厦门天马微电子有限公司 | Display panel and display device |
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| CN105867028B (en) | 2018-11-23 |
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