CN105842773A - Self-light-emitting light guide plate, backlight module and display device - Google Patents
Self-light-emitting light guide plate, backlight module and display device Download PDFInfo
- Publication number
- CN105842773A CN105842773A CN201610195633.1A CN201610195633A CN105842773A CN 105842773 A CN105842773 A CN 105842773A CN 201610195633 A CN201610195633 A CN 201610195633A CN 105842773 A CN105842773 A CN 105842773A
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- CN
- China
- Prior art keywords
- light
- guide plate
- self
- light guide
- film
- 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.)
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Classifications
-
- 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
-
- 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
- G02B6/0091—Positioning aspects of the light source relative to the light guide
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to the technical field of displays and discloses a self-light-emitting light guide plate, a backlight module and a display device. According to the technical scheme of the invention, the optical quality of the backlight module is improved, so that the image quality of the display device is further improved. The self-light-emitting light guide plate comprises a substrate, wherein the substrate has at least one light incident surface. The light incident surface is provided with a white-light light-emitting layer. In the embodiment of the present invention, the white-light light-emitting layer is arranged on the light incident surface of the substrate. In this way, when the self-light-emitting light guide plate is applied to the backlight module, the self-light-emitting light guide plate can play the role of a light source. Compared with the prior art wherein an LED lamp set is adopted as a light source, the phenomenon that the image effect of the backlight module is poor due to the assembly error of the LED lamp set can be avoided in the embodiment of the present invention. Furthermore, the image quality of the display device is improved. In addition, since the light emitted from the white-light light-emitting layer can vary along with the shape of the substrate, the self-light-emitting light guide plate is good in development prospect when applied to a curved-surface display device.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of self-luminous light guide plate, backlight module and show
Show equipment.
Background technology
At present, the commonly used LED of backlight module (light-emitting diode, the luminescence of liquid crystal display
Diode, is called for short LED) as light source, according to the distributing position of light source, backlight module can be divided into straight-down negative
With side entering type two kinds.The distribution of light sources of down straight aphototropism mode set in the bottom of light guide plate, such backlight module master
The large-sized display devices such as display to be applied to, TV；The distribution of light sources of side entrance back module is in leaded light
The side of plate, such backlight module is mainly used in the small sizes such as notebook, palm PC and mobile phone and shows
Equipment.
As it is shown in figure 1, in liquid crystal display, the primary structure of side injection type backlight module includes: have
The backboard 31 of accommodation space, is positioned at accommodation space the reflector plate 32 of order placement, the leaded light of backboard 31
Plate 33 and blooming piece 34, be positioned at the LED group 35 of light guide plate 33 incident side, and be positioned at blooming
The top of sheet 34 and the glue frame 36 being connected with backboard 31.
During backlight module work, the light that light source sends is after light guide plate one side end face enters light guide plate, at leaded light
It is totally reflected back and forth between plate upper and lower surface and two sides, advances to light guide plate opposite side end face direction, when being mapped to lead
During the scattering netted dot of tabula rasa bottom surface, reflection light scatters and destroys total reflection condition to all directions, thus portion
Point scattered light has an opportunity to transmit light guide plate from upper surface, and this some scattered light is referred to as exporting light.Reflector plate
Effect is that the light of outgoing from the negative reflexes to front, increases light intensity；Output light is expanded by blooming piece
Dissipate and collect, it is ensured that the brightness of backlight module and the requirement of homogeneity.
In realizing process of the present invention, inventor finds that existing backlight module has a drawback in that, LED
Spacing and the spacing of the incidence surface of LED group and light guide plate between adjacent two LEDs of group exist relatively
Big assembly error, the display picture being therefore easily caused backlight module is bad.
Summary of the invention
Embodiments provide a kind of self-luminous light guide plate, backlight module and display device, to improve the back of the body
The optical quality of light module, and then improve the picture quality of display device.
The self-luminous light guide plate that the embodiment of the present invention provides, including substrate, substrate has at least one incidence surface,
Incidence surface is provided with white-light emitting layer.
Preferably, described white-light emitting layer be included on described incidence surface sequentially form the first electrode film,
White light quanta point material film and the second electrode film.
Preferably, described first electrode film is cathode thin film, and described second electrode film is anode film.
Concrete, described cathode thin film is metal-oxide film；Described anode film is metallic film.
Concrete, described metal-oxide film is indium tin oxide films.
Preferably, described white light quanta point material film includes manganese sulfur cadmium thin film, cadmium selenide thin film or sulfuration
Cadmium thin film.
Concrete, described incidence surface is upper surface or the side end face of described substrate.
Preferably, between each incidence surface and the white-light emitting layer of described substrate, there is protective film, described guarantor
Protecting thin film is polyethylene terephthalate thin film.
In embodiments of the present invention, owing to the incidence surface of substrate is provided with white-light emitting layer, therefore this self-luminous
When light guide plate is applied to backlight module, the effect of light source, compared to existing technology middle employing LED can be served as
Lamp group is as light source, and the embodiment of the present invention can avoid the backlight mould brought due to LED group assembly error
The phenomenon that a series of paintings face is bad, and then the picture quality of display device can be improved；Additionally, due to white-light emitting
The light that layer sends can change with the shape of substrate, and therefore, this self-luminous light guide plate is applied to curved-surface display
During equipment, there is the best development prospect.
The embodiment of the present invention provides a kind of backlight module, including the spontaneous photoconduction described in aforementioned arbitrary technical scheme
Tabula rasa.When the self-luminous light guide plate of any of the above-described embodiment is applied to backlight module, the optics product of backlight module
Matter is preferable, and display effect is preferable.
The embodiment of the present invention provides a kind of display device, including the backlight mould described in aforementioned arbitrary technical scheme
Group.Owing to the optical quality of backlight module is preferable, thus the display effect of this display device is preferable, additionally,
The light sent due to white-light emitting layer can change with the shape of substrate, and therefore, this backlight module is applied to
During curved-surface display equipment, there is the best development prospect.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present invention, for those of ordinary skill in the art, is not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the cross section structure schematic diagram of prior art backlight module；
Fig. 2 is the cross section structure schematic diagram of embodiment of the present invention backlight module；
Fig. 3 is the cross section structure schematic diagram of embodiment of the present invention self-luminous light guide plate；
Fig. 4 is the cross section structure schematic diagram of another embodiment of the present invention self-luminous light guide plate；
Fig. 5 is the cross section structure schematic diagram of further embodiment of this invention self-luminous light guide plate；
Fig. 6 is the cross section structure schematic diagram of yet another embodiment of the invention self-luminous light guide plate.
Reference:
Prior art part:
31-backboard
32-reflector plate
33-light guide plate
34-blooming piece
35-LED lamp group
36-glue frame
Embodiment of the present invention part:
11-backboard
12-reflector plate
13-light guide plate
14-blooming piece
15-LED lamp group
16-glue frame
230-self-luminous light guide plate
300-substrate
200-white-light emitting layer
20-the first electrode film
21-white light quanta point material film
22-the second electrode film
23-protective film
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
As it is shown on figure 3, the embodiment of the present invention provides a kind of self-luminous light guide plate 230, including substrate 300,
Substrate 300 has at least one incidence surface, and incidence surface is provided with white-light emitting layer 200.
Wherein, incidence surface can be any plane of substrate, it is preferred that incidence surface be substrate upper surface or
Person side end face, self-luminous light guide plate as shown in Figure 3 and Figure 4, incidence surface is upper surface, such as Fig. 5 and Tu
Self-luminous light guide plate shown in 6, incidence surface is side end face.
In embodiments of the present invention, owing to the incidence surface of substrate is provided with white-light emitting layer, therefore this self-luminous
When light guide plate is applied to backlight module, the effect of light source, compared to existing technology middle employing LED can be served as
Lamp group is as light source, and the embodiment of the present invention can avoid the backlight mould brought due to LED group assembly error
The phenomenon that a series of paintings face is bad, and then the picture quality of display device can be improved；Additionally, due to white-light emitting
The light that layer sends can change with the shape of substrate, and therefore, this self-luminous light guide plate is applied to curved-surface display
During equipment, there is the best development prospect.
In a preferred embodiment of the invention, white-light emitting layer 200 is included in what incidence surface sequentially formed
First electrode film 20, white light quanta point material film 21 and the second electrode film 22.Wherein, when
When one electrode film is cathode thin film, then the second electrode film is anode film, accordingly, when the first electrode
When thin film is anode film, then the second electrode film is cathode thin film.
The particular type of cathode thin film does not limits, such as, can be metal-oxide film, such as tin indium oxide etc.；
The particular type of white light quanta point material film 21 does not limits, can be such as manganese sulfur cadmium (CDMnS) thin film,
Cadmium selenide (CdSe) thin film or cadmium sulfide (CdS) thin film etc.；The particular type of anode film is the most not
Limit, such as, can be metallic film etc..
After the backlight module with this self-luminous light guide plate is energized, anode film and cathode thin film form electricity
, white light quanta point material film due to its internal crystal framework subside formed electron transition time intermediate state, work as sun
The electronics of very thin films, after ground state is excited, transits to excited state after intermediate state, then by excited state warp
Between state transition return ground state, in the process, white light quanta point material film discharges a series of different-energy
Visible ray, multiple visible ray goes out the white light of stable uniform through superposed and transmitted.
In another preferred embodiment of the invention, have between each incidence surface and the white-light emitting layer of substrate
Protected thin film 23.Use such design, it is simple on protective film, form cathode thin film, and permissible
Protection light guide plate.The particular type of protective film does not limits, such as, can be polyethylene terephthalate (PET)
Thin film etc..
As in figure 2 it is shown, embodiments provide a kind of backlight module, including aforementioned any embodiment
Self-luminous light guide plate 230.
Concrete, this backlight module includes: have the backboard 11 of accommodation space, is positioned at the accommodating of backboard 11
Reflector plate 12, self-luminous light guide plate 230 and the blooming piece 14 in space and sequentially placed, and be positioned at
The top of blooming piece 14 and the glue frame 16 being connected with backboard 11.The self-luminous of any of the above-described embodiment is guide-lighting
When plate is applied to backlight module, the optical quality of backlight module is preferable, and display effect is preferable.
The embodiment of the present invention provides a kind of display device, including the backlight module of aforementioned any embodiment.Due to
The optical quality of backlight module is preferable, thus the display effect of this display device is preferable, additionally, due to white light
The light that luminescent layer sends can change with the shape of substrate, and therefore, this backlight module is applied to curved-surface display
During equipment, there is the best development prospect.The particular type of display device does not limits, such as, can be liquid
Brilliant TV, liquid crystal display, panel computer, etc..
Last it is noted that above example is only in order to illustrate technical scheme, rather than it is limited
System；Although the present invention being described in detail with reference to previous embodiment, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a self-luminous light guide plate, it is characterised in that include that substrate, described substrate have at least one
Incidence surface, described incidence surface is provided with white-light emitting layer.
Self-luminous light guide plate the most according to claim 1, it is characterised in that described white-light emitting layer
It is included on described incidence surface the first electrode film, the white light quanta point material film and second sequentially formed
Electrode film.
Self-luminous light guide plate the most according to claim 2, it is characterised in that described first electrode is thin
Film is cathode thin film, and described second electrode film is anode film.
Self-luminous light guide plate the most according to claim 3, it is characterised in that described cathode thin film is
Metal-oxide film；Described anode film is metallic film.
Self-luminous light guide plate the most according to claim 4, it is characterised in that described metal-oxide
Thin film is indium tin oxide films.
Self-luminous light guide plate the most according to claim 2, it is characterised in that described white light quanta point
Material film includes manganese sulfur cadmium thin film, cadmium selenide thin film or cadmium sulphide membrane.
Self-luminous light guide plate the most according to claim 1, it is characterised in that described incidence surface is institute
State upper surface or the side end face of substrate.
Self-luminous light guide plate the most according to claim 1, it is characterised in that described substrate each
Having protective film between incidence surface and white-light emitting layer, described protective film is polyethylene terephthalate
Thin film.
9. a backlight module, it is characterised in that include according to described in any one of claim 1～8 from
Luminous light guide plate.
10. a display device, it is characterised in that include backlight module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195633.1A CN105842773A (en) | 2016-03-30 | 2016-03-30 | Self-light-emitting light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195633.1A CN105842773A (en) | 2016-03-30 | 2016-03-30 | Self-light-emitting light guide plate, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105842773A true CN105842773A (en) | 2016-08-10 |
Family
ID=56596329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195633.1A Pending CN105842773A (en) | 2016-03-30 | 2016-03-30 | Self-light-emitting light guide plate, backlight module and display device |
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| CN (1) | CN105842773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166489A1 (en) * | 2016-03-30 | 2017-10-05 | 乐视控股（北京）有限公司 | Self-luminous light guide plate, and backlight module and display device |
| CN107991812A (en) * | 2018-01-29 | 2018-05-04 | 京东方科技集团股份有限公司 | Backlight module and its manufacture method, display device |
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| CN205643763U (en) * | 2016-03-30 | 2016-10-12 | 乐视控股（北京）有限公司 | Self -luminous light guide plate, backlight unit and display device |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017166489A1 (en) * | 2016-03-30 | 2017-10-05 | 乐视控股（北京）有限公司 | Self-luminous light guide plate, and backlight module and display device |
| CN107991812A (en) * | 2018-01-29 | 2018-05-04 | 京东方科技集团股份有限公司 | Backlight module and its manufacture method, display device |
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